Compact spinning reel having inclined
pivoting axis
Document Type and Number:
United States Patent 5947397
:
http://www.freepatentsonline.com/5947397.html
Abstract:
A spinning reel capable of being mounted on a fishing
rod includes a reel main body which has a handle
and which is capable of being mounted on a fishing
rod, a rotor which has an axis of rotation, which
is supported on the front part of the reel main
body so that the rotor is free to rotate, and which
can be caused to rotate by means of the handle,
and a spool which is installed on the front part
of the rotor, and which has an outer circumference
adapted to receive a fishing line. The rotor includes
(i) a first arm and a second arm which are installed
facing each other on opposite sides of the axis
of rotation of the rotor and have inner- and outer-circumferential
sides, (ii) a first bail supporting member which
is mounted on the inner-circumferential side of
the first arm such that the first bail supporting
member is free to pivot, and which has a first center
of pivoting motion and a line guiding part, (iii)
a second bail supporting member which is mounted
on the second arm such that the second bail supporting
member is free to pivot, and which has a second
center of pivoting motion which is located forward
of the first center of pivoting motion of the first
bail supporting member, and (iv) a bail which extends
between the first bail supporting member and the
second bail supporting member, and which is capable
of adopting both a line retrieving position and
a line releasing position.
Inventors: Hitomi, Yasuhiro (Hashimoto, JP) Application Number:
904076 Filing Date: 07/31/1997 Publication Date: 09/07/1999
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for automatic bibliography generation Assignee: Shimano, Inc.
(JP) Primary Class: 242/231 International Classes: A01K 089/01
Field of Search: 242/230, 231, 232, 233, 241 US Patent References:
3743207 Jul, 1973 McMickle 242/233. 3987976 Oct, 1976 Lilland
242/232. 4171108 Oct, 1979 Ishida et al. 242/231. 5246186 Sep,
1993 Sugawara 242/232. Foreign References: 0 456 262 Nov, 1991
EP. 585947 Mar, 1994 EP 242/230. 000585947 Mar, 1994 EP 242/230.
1176814 Apr, 1959 FR. 1213235 Mar, 1960 FR. 42 26 059 Feb, 1993
DE. 1171879 Nov, 1969 GB. 2260278 Apr, 1993 GB 242/231. 002260678
Apr, 1993 GB 242/231.
Other References: European Search Report, app. No. 95304470.8,
issued Oct. 9, 1995. Primary Examiner: Walsh, Donald P. Assistant
Examiner: Marcelo, Emmanuel M. Attorney, Agent or Firm: Jeffer,
Mangles, Butler & Marmaro LLP Parent Case Data: This application
is a continuation of application Ser. No. 08/492,925, filed
Jun. 21, 1995, now abandoned. Claims: What is claimed is:
1. A spinning reel adapted to be mounted on a fishing rod,
said reel comprising
a reel main body which has a front part and a handle and
which is adapted to be mounted on a fishing rod,
a rotor which has an axis of rotation, which is supported
on said front part of said reel main body so that said rotor
is free to rotate, and which is caused to rotate by means of
said handle, and
a spool which is installed on the front part of said rotor,
and which has an outer circumference adapted to receive a fishing
line,
wherein said rotor comprises
(i) a first arm and a second arm which are installed facing
each other on opposite sides of said axis of rotation of said
rotor and have inner- and outer-circumferential sides,
(ii) a first bail supporting member which is mounted on said
inner-circumferential side of said first arm such that said
first bail supporting member is free to pivot, and which has
a first center of pivoting motion and a line guiding part,
(iii) a second bail supporting member which is mounted on
said second arm such that said second bail supporting member
is free to pivot, and which has a second center of pivoting
motion which is fronted farther from said front part of said
reel main body in the longitudinal direction than said first
center of pivoting motion of said first bail supporting member,
said first and second bail supporting members having a common
pivoting axis, and respectively pivoting about said pivoting
axis in first and second pivoting planes which are perpendicular
to said pivoting axis,
(iv) a bail which extends between said first bail supporting
member and said second bail supporting member, and which is
adapted to adopt both a line retrieving position and a line
releasing position, and
(v) first and second covers mounted on said outer-circumferential
sides of said first and second arms, respectively, said covers
having surfaces that are smoothly continuous in the longitudinal
direction and in the circumferential direction.
2. A spinning reel as defined in claim 1, in which a pivoting
axis connects said first and second centers of pivoting motion
of said first and second bail supporting members, wherein said
pivoting axis is offset from said axis of rotation toward said
bail in said line releasing position.
3. A spinning reel as defined in claim 1, in which an end
of at least said first arm is offset from said pivoting axis
toward said bail in said line retrieving position.
4. A spinning reel as defined in claim 1, in which said second
bail supporting member is mounted on said outer-circumferential
side of said second arm.
5. A spinning reel comprising
(i) a reel main body having a front part, and
(ii) a rotor which is rotatably supported on said reel main
body, said rotor comprising
(a) a cylindrical element through which an axis of rotation
of said rotor is defined,
(b) opposed first and second arms which have inner- and outer-circumferential
sides,
(c) a first bail supporting member which is freely pivotally
mounted on said inner-circumferential side of said first arm
and which has a first center of pivoting motion and a line guiding
part,
(d) a second bail supporting member which is freely pivotally
mounted on said second arm and which has a second center of
pivoting motion located farther from said front part of said
reel main body in the longitudinal direction than said first
center of pivoting motion of said first bail supporting member,
(e) a bail which is disposed between said first bail supporting
member and said second bail supporting member, and which is
adapted to adopt both a line retrieving position and a line
releasing position, and
(f) first and second covers mounted on said outer-circumferential
sides of said first and second arms, respectively, said covers
having surfaces that are smoothly continuous in the longitudinal
direction and in the circumferential direction,
wherein a pivoting axis connects said first and second centers
of pivoting motion of said first and second bail supporting
members, said pivoting axis being offset from the said axis
of rotation toward said bail in said line releasing position,
and wherein said first and second bail supporting members respectively
pivot about said pivoting axis in first and second pivoting
planes which are perpendicular to said pivoting axis.
6. A spinning reel as defined in claim 5, in which said second
bail supporting member is mounted on said outer-circumferential
side of said second arm.
7. A spinning reel as defined in claim 5, in which said second
bail supporting member is mounted on said inner-circumferential
side of said second arm.
8. A spinning reel as defined in claim 5 wherein said first
arm is inclined outward with respect to said axis of rotation,
said inner- and outer-circumferential sides of said first arm
are substantially parallel at said first center of pivoting
motion, said first pivoting plane is parallel to said inner-circumferential
side of said first arm, and said second pivoting plane is inclined
with respect to at least one of said inner- and outer-circumferential
sides of said second arm.
9. A spinning reel as defined in claim 5 wherein said outer
surfaces of said covers extend in the longitudinal direction
parallel to said axis of rotation.
10. A spinning reel as defined in claim 5 wherein said first
and second covers cover substantially the entire outer-circumferential
surfaces of said first and second arms, respectively.
11. A spinning reel as defined in claim 5, wherein said first
arm comprises rear and forward portions, said rear portion being
offset toward said bail in said line retrieving position, said
forward portion being offset toward said bail line said line
releasing position.
12. A spinning reel comprising
(i) a reel main body, and
(ii) a rotor which is rotatably supported on said reel main
body, said rotor comprising
(a) a cylindrical element through which an axis of rotation
of said rotor is defined,
(b) opposed first and second arms which have inner- and outer-circumferential
sides, said first arm being inclined outward with respect to
said axis of rotation,
(c) a first bail supporting member which is freely pivotally
mounted on said inner-circumferential side of said first arm
and which has a first center of pivoting motion and a line guiding
part,
(d) a second bail supporting member which is freely pivotally
mounted on said second arm and which has a second center of
pivoting motion, wherein a pivoting axis connects said first
and second centers of pivoting motion, said pivoting axis being
inclined with respect to said axis of rotation, and wherein
said first and second bail supporting members respectively pivot
about said pivoting axis in first and second pivoting planes
which are perpendicular to said pivoting axis, and
(e) a bail which is disposed between said first bail supporting
member and said second bail supporting member, and which is
adapted to adopt both a line retrieving position and a line
releasing position,
wherein said inner- and outer-circumferential sides of said
first arm are substantially parallel at said first center of
pivoting motion, said first pivoting plane is parallel to said
inner-circumferential side of said first arm at said first center
of pivoting motion, and said second pivoting plane is inclined
with respect to at least one of said inner- and outer-circumferential
sides of said second arm.
13. A spinning reel as defined in claim 12 wherein said rotor
further comprises first and second covers mounted on said outer-circumferential
sides of said first and second arms, respectively, said covers
having surfaces that are smoothly continuous in the longitudinal
direction and in the circumferential direction.
14. A spinning reel as defined in claim 13 wherein said outer
surfaces of said covers extend in the longitudinal direction
parallel to said axis of rotation.
15. A spinning reel as defined in claim 14 wherein said first
and second covers cover substantially the entire outer-circumferential
surfaces of said first and second arms, respectively.
16. A spinning reel as defined in claim 12 wherein said first
arm comprises rear and forward portions, said rear portion being
offset toward said bail in said line retrieving position, said
forward portion being offset toward said bail line said line
releasing position. Description: FIELD OF THE INVENTION
The present invention relates to a spinning reel, and specifically
concerns a spinning reel equipped with bail supporting members
which are used to place the bail in a line retrieving position
or a line releasing position.
BACKGROUND OF THE INVENTION
Spinning reels generally have a reel main body, a rotor which
is supported on the reel main body so that the rotor is free
to rotate, and a spool around which a fishing line is wound.
The rotor has a first arm and second arm which are installed
facing each other on opposite sides of a rotating shaft, bail
supporting members which are mounted on the tips of the respective
arms so that the bail supporting members are free to pivot,
and a bail which is installed between the bail supporting members.
This bail adopts either a line releasing position or a line
retrieving position by pivoting together with the bail supporting
members. Furthermore, a line roller which guides the fishing
line is installed on the tip of one of the bail supporting members.
In such a spinning reel, the bail is pushed over into the
line releasing position during casting. Then, when the fishing
line is to be taken up after casting, the bail is returned to
the line retrieving position. When the handle is turned with
the bail in the line retrieving position, the fishing line is
taken up around the outer circumference of the spool while being
guided by a line roller positioned on the attachment end of
the bail.
In spinning reels of the type described above, the bail supporting
members are mounted on the outer-circumferential sides of the
respective arms. In the case of such a construction, a large
space is required between the rotor and the fishing rod in order
to prevent the bail supporting members mounted on the arms from
contacting the hand holding the fishing rod during the rotation
of the rotor. However, in cases where the rotor is thus installed
at a distance from the fishing rod, the distance between the
handle position and the fishing rod is increased, so that the
moment acting on the fishing rod when the handle is operated
is also increased. Furthermore, if the radius of rotation of
the bail supporting member on the side where the line roller
is mounted is large, it becomes difficult to achieve the proper
balance during rotation. In addition, when the bail supporting
members are pushed over into the line releasing position during
casting, the resulting state is such that the fishing line tends
to become entangled with the bail supporting members.
Accordingly, there are reel constructions in which the first
bail supporting member on which the line roller is installed
is mounted on the inner circumferential side of the corresponding
arm as indicated in Japanese Utility Model Application Kokai
No. 4-12864, etc. However, even in the case of such reel constructions,
the line roller projects to the outside when the bail is pushed
over into the line releasing position, so that entanglement
of the line cannot be sufficiently avoided.
One object of the present invention is to reduce the incidence
of line entanglement during casting, and also to prevent an
imbalance during rotation, in a spinning reel in which a line
guiding part is installed on the tip of one of the bail supporting
members.
Another object of the present invention is to make it possible
to reduce the incidence of line entanglement, and to reduce
the overall size of the reel.
SUMMARY OF THE PREFERRED EMBODIMENTS
In accordance with one aspect of the present invention, there
is provided an improved spinning reel. The spinning reel is
equipped with a reel main body, a rotor and a spool. The reel
main body has a handle, and can be mounted on the fishing rod.
The rotor is supported on the front part of the reel main body
so that the rotor is free to rotate. The rotor is caused to
rotate by means of the handle. The spool is installed on the
front part of the rotor, and has a fishing line wound around
its outer circumference.
More particularly, the rotor has (i) a first arm and a second
arm which are installed facing each other on opposite sides
of the axis of rotation of the rotor, (ii) a first bail supporting
member which is mounted on the inner-circumferential side of
the first arm so that the first bail supporting member is free
to pivot, and which has a line guiding part, (iii) a second
bail supporting member which is mounted on the second arm so
that the second bail supporting member is free to pivot, and
whose center of pivoting motion is located forward of the center
of pivoting motion of the first bail supporting member, and
(iv) a bail which is installed between the first bail supporting
member and second bail supporting member, and which is capable
of adopting both a line retrieving position and a line releasing
position.
The rotor is caused to rotate by rotating the handle. As
a result, the fishing line is wound on the spool while being
guided by the bail and the line guiding part installed on the
tip of one of the arms of the rotor. Here, the first bail supporting
member on which the line guiding part is installed is mounted
on the inner-circumferential side of the first arm. The center
of pivoting motion of the first bail supporting member is located
further to the rear than the center of pivoting motion of the
second bail supporting member.
In this case, there is less likelihood that the first bail
supporting member will contact the hand holding the fishing
rod during the rotation of the rotor. Accordingly, the reel
can be positioned closer to the fishing rod. Furthermore, the
center of gravity of the second bail supporting member is moved
closer to the center of gravity of the first bail supporting
member, so that the gap in the axial direction is reduced. As
a result, the moment acting on the axis of rotation is reduced,
so that there is less vibration during the rotation of the rotor.
According to a preferred embodiment of the present invention,
the pivoting axis which connects the centers of pivoting motion
of the first and second bail supporting members is offset from
the axis of rotation toward the bail in the line releasing position.
Accordingly, any imbalance that might be caused by the bail
during rotation is reduced.
According to another preferred embodiment of the present
invention, the end part, on the reel main body side, of at least
the first arm of the first and second arms is offset from the
pivoting axis toward the bail in the line retrieving position.
Accordingly, there is less likelihood that the first bail supporting
member will interfere with the first arm when the bail is pushed
over into the line releasing position. Furthermore, any imbalance
that might be caused by the bail supporting members or line
guiding part, etc., during rotation is reduced.
According to still another preferred embodiment, the second
bail supporting member is mounted on the outer-circumferential
side of the second arm. Accordingly, any imbalance that might
be caused in particular by the line guiding part during rotation
is reduced.
In accordance with yet another preferred embodiment, the
first and second bail supporting members have a common pivoting
axis, and the pivoting planes of the bail supporting members
are perpendicular to the pivoting axis. Accordingly, the line
guiding part, etc. is positioned further inward when the bail
is pushed over into the line releasing position, so that entanglement
of the fishing line is less likely to occur. Furthermore, the
pivoting of the bail supporting members can be performed smoothly
in spite of the fact that the pivoting axis is inclined with
respect to the axis of rotation. In addition, the distance between
the reel and the fishing rod can be reduced so that the reel
as a whole can be made more compact.
In accordance with a further preferred embodiment, covers
are mounted on the outer-circumferential sides of at least one
of the first arm and second arm. Accordingly, projections, etc.,
are covered so that entanglement of the fishing line, etc.,
can be prevented. Furthermore, the arms are protected. As a
result, the arms are less likely to be damaged.
The inventive spinning reel preferably also includes a level
winding mechanism for uniformly winding a fishing line onto
the spool. In a more specific embodiment, the level winding
mechanism comprises a spool shaft adapted for reciprocating
motion, the spool shaft having a forward end which is fastened
to the spool and a rear end. A rotatable screw shaft disposed
beneath and parallel to the spool shaft, and having an outer
circumferential surface in which a plurality of spiral grooves
are defined, is engaged by a slider. The slider is adapted for
reciprocating motion along the screw shaft and is affixed to
the rear end of the spool shaft. An intermediate gear is affixed
to the screw shaft and engages the pinion gear.
Preferably, the slider is mounted within the reel main body
parallel to the spool shaft by means of two guide shafts and
engages only a portion of the outer circumferential surface
of the screw shaft.
Other objects, features and advantages of the present invention
will become apparent to those skilled in the art from the following
detailed description. It is to be understood, however, that
the detailed description and specific examples, while indicating
preferred embodiments of the present invention, are given by
way of illustration and not limitation. Many changes and modifications
within the scope of the present invention may be made without
departing from the spirit thereof, and the invention includes
all such modifications.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention may be more readily understood by referring
to the accompanying drawings in which
FIG. 1 is a sectional front view of a spinning reel which
constitutes one embodiment of the present invention.
FIG. 2 shows the fishing rod attachment part of the spinning
reel.
FIG. 3 is a sectional plan view of the spinning reel.
FIG. 4 is a sectional back view of the spinning reel.
FIG. 5 is a partially sectional structural diagram of the
slider.
FIG. 6 is a side view of the rotor.
FIG. 7 is a view from the other side of the rotor.
FIG. 8 is a sectional structural diagram of the reverse rotation
preventing mechanism.
FIG. 9 is an explode perspective view of the reverse rotation
preventing mechanism.
FIGS. 10(a)-(c) are explanatory diagrams which illustrate
the operation of the reverse rotation preventing mechanism.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The spinning reel shown in FIGS. 1 through 3, which constitutes
one embodiment of the present invention, is equipped with a
reel main body 1 which has a handle 2, a rotor 3 which is supported
on the front part of reel main body 1 so that rotor 3 is free
to rotate, and a spool 4 which is installed on the front part
of the rotor 3, and which takes up the fishing line.
The reel main body 1 has a body unit 1a, and an attachment
element 1b which is used to attach the spinning reel to the
fishing rod is formed on the upper portion of body unit 1a.
A rotor driving mechanism 5 which is used to cause rotation
of the rotor 3, and a level winding mechanism 6 which is used
to take up the fishing line uniformly on the spool 4 by causing
the spool 4 to move back and forth along the axis of rotation
X, are installed inside the body unit 1a.
The rotor driving mechanism 5 has a face gear 10 which rotates
together with a shaft 11 to which the handle 2 is fastened,
and a pinion gear 12 which engages with face gear 10. The pinion
gear 12 is formed in the shape of a cylinder; the front part
of pinion gear 12 passes through the central portion of the
rotor 3 and extends toward the spool 4. Furthermore, a screw
part is formed on the tip end of pinion gear 12. The intermediate
and rear end parts of the pinion gear 12 (in the axial direction)
are supported on the reel main body 1 via bearings 13 and 14
so that pinion gear 12 is free to rotate.
The level winding mechanism 6 is a mechanism which is used
to move the spool 4 back and forth in the axial direction by
moving a spool shaft 20 which is fastened to the central portion
of the spool 4 in direction. The level winding mechanism 6 has
a screw shaft 21 which is installed beneath the spool shaft
20, a slider 22 which moves back and forth along screw shaft
21, and an intermediate gear 23 which is fastened to the tip
end of screw shaft 21. The screw shaft 21 is installed parallel
to the spool shaft 20, and is supported on the body unit 1a
so that screw shaft 21 is free to rotate. Furthermore, spiral
grooves 21 a are formed in the outer circumferential surface
of the screw shaft 21. The rear end of the spool shaft 20 is
fastened to the slider 22. Moreover, the intermediate gear 23
engages with the pinion gear 12.
As is shown in FIGS. 4 and 5, the slider 22 has a slider
main body 25 and an engaging member 26 which is accommodated
inside slider main body 25.
The slider main body 25 is mounted on two guide shafts 28
and 29 which are installed parallel to the spool shaft 20, so
that slider main body 25 is free to slide on guide shafts 28
and 29. Since the slider main body 25 is guided by the two guide
shafts 28 and 29, inclination of the slider main body 25 during
sliding is prevented. Accordingly, there is no need to form
the slider main body 25 so that slider main body 25 covers the
entire circumference of screw shaft 21 as in the case of conventional
slider main bodies. Hence, the slider main body 25 used in the
present embodiment has a shape which is such that slider main
body faces only one side surface of the screw shaft 21. Thus,
the amount of projection of the slider main body 25 toward the
other side surface of the screw shaft 21 is reduced. As a result,
the size of the reel main body can be reduced.
Furthermore, a laterally oriented hole 25a is formed in the
slider main body so that the hole intersects with the screw
shaft 21 at right angles. The engaging member 26 is inserted
into this hole 25a so that engaging member 26 is free to slide.
An engaging element 26a which engages with the grooves 21a of
the screw shaft 21 is formed on the tip end of the engaging
member 26. A covering member 24 is fastened to one end of the
hole 25a the slider main body 25.
The rotor 3 has a cylindrical element 30, as well as a first
arm 31 and second arm 32 which are installed facing each other
on the sides of the cylindrical element 30. The cylindrical
element 30 and the arms 31 and 32 are formed as an integral
unit. In the alternative, the cylindrical element 30 and the
arms 31 and 32 can be formed as separate elements. Arms 31 and
32 can then be affixed to cylindrical element 30.
A front wall 33 is formed on the front portion of the cylindrical
element 30, and a boss 33a is formed in the central portion
of front wall 33. A through-hole is formed in the central portion
of boss 33a, and the spool shaft 20 and front part 12a of the
pinion gear 12 pass through this through-hole. A nut 34 is installed
on the front side of the front wall 33; this nut 34 is screwed
onto the tip-end screw part of the pinion gear 12. A bearing
35 which supports the spool shaft 20 so that shaft 20 is free
to rotate is installed on the inside circumference of the nut
34.
A first bail supporting member 40 is attached to the inner-circumferential
side of the tip of the first arm 31 so that first bail supporting
member 40 is free to pivot. A line roller 41 which is used to
guide the fishing line onto the spool 4 is mounted on the tip
of first bail supporting member 40. Furthermore, a second bail
supporting member 42 is mounted on the outer-circumferential
side of the tip of the second arm 32. For example, this second
bail supporting member 42 can be constructed from a material
which has a larger specific gravity than the other parts, and
can thus be caused to function as a balancer which eliminates
any imbalance that might be caused by the first bail supporting
member 40 or line roller 41 during rotation. A bail 43 is installed
between the second bail supporting member 42 and the line roller
41 on the tip of the first bail supporting member 40. As a result
of the first bail supporting member 40 thus being mounted on
the inner-circumferential side of the first arm 31, the radius
of rotation of the first bail supporting member 40 is reduced,
so that there is less likelihood that bail supporting member
40 will strike the hand holding the fishing rod. Accordingly,
the spool and the fishing rod can be positioned closer to each
other, so that the overall size of the spinning reel can be
reduced. Furthermore, since the radius of rotation is reduced,
it is easier to prevent an imbalance from occurring during rotation.
Furthermore, optional covers 44 and 45 are attached to the
outer-circumferential sides of the arms 31 and 32. The surfaces
of these covers 44 and 45 are formed so that the surfaces are
smoothly continuous in the longitudinal direction and in the
circumferential direction. As a result, snagging of the fishing
line can be prevented.
Here, both bail supporting members 40 and 42 are free to
pivot about a single pivoting axis M. If the point where the
plane of attachment of the first bail supporting member to the
first arm 31 intersects with the pivoting axis M is taken as
the center of pivoting motion C1, and the point where-the plane
of attachment of the second bail supporting member to the second
arm 32 intersects with the pivoting axis M is taken as the center
of pivoting motion C2, then the center of pivoting motion C2
is positioned further forward than the center of pivoting motion
C1. In other words, the pivoting axis M is inclined with respect
to the axis of rotation X. Furthermore, the bail supporting
members 40 and 42 are installed so that the pivoting planes
of members 40 and 42 are perpendicular to the pivoting axis
M.
Furthermore, as is shown in FIGS. 6 and 7, the rear portion
of the first arm 31 (on the reel main body side) is offset from
the axis of rotation X toward the bail in the line retrieving
position. Furthermore, from the central portion (with respect
to the axial direction) forward, first arm 31 is inclined toward
the opposite side (i.e., toward the bail in the line releasing
position). As a result of the rear portion of the first arm
31 thus being offset toward the bail in the line retrieving
position, interference between the bail 43 and the first arm
31 is reduced when the bail 43, is pushed over into the line
releasing position (as indicated by the one-dot chain line in
FIG. 6. Furthermore, any imbalance that might be caused by the
first bail supporting member 40 or line roller, etc., during
rotation can be reduced. Meanwhile, as is shown in FIG. 7, the
second arm 32 extends in more or less a straight line overall.
Furthermore, the centers of pivoting motion of the first and
second bail supporting members 40 and 42 are offset by a distance
D from the axis of rotation X toward the bail in the line releasing
position. As a result, any imbalance that might be caused by
the bail 43 during rotation can be reduced.
A mechanism 50 which prevents reverse rotation of the rotor
3 is installed inside the cylindrical element 30 of the rotor
3. As is shown in FIGS. 8 and 9, this reverse rotation preventing
mechanism has a frame 51 which is fastened to the reel main
body 1 by fastening means such as screws 51a, a roller type
one-way clutch 52 which is accommodated inside frame 51, and
an operating mechanism 53 which switches the one-way clutch
52 between an operative state and an inoperative state.
The one-way clutch 52 has an outer ring 55 which is mounted
on the frame 51 so that relative rotation between outer ring
55 and frame 51 is impossible, an inner ring 56 which is fastened
to the outer circumference of the front cylindrical part of
the pinion gear 12, a multiple number of rollers 57, and a retainer
58 which holds the rollers 57. The rollers 57 are positioned
between the outer ring 55 and the inner ring 56, and are capable
of adopting either an operative position in which the rollers
engage the rings, or an inoperative position in which the rollers
idle between the rings. The retainer 58 is a more or less cylindrical
member which is accommodated inside the frame part 51; this
retainer 58 can rotate through a prescribed angular range. Furthermore,
a multiple number of accommodating cut-outs 58a are formed in
the retainer 58 at equal angular intervals in the circumferential
direction. A roller 57 is accommodated inside each of these
cut-outs 58a so that roller 57 is free to move in the circumferential
direction through a prescribed angular range, i.e., so that
roller 57 is free to move between the operative position and
the inoperative position. Furthermore, when the clutch is "on"
(with the rollers 57) in their operative positions), relative
rotation between the outer ring 55 and the inner ring 56 is
impossible in one direction only, and when the clutch is "off"
(with the rollers 57) in their inoperative positions), the outer
ring 55 and inner ring 56 are free to rotate relative to each
other. Moreover, a bent plate-form leaf spring 59 which drives
the corresponding roller 57 toward the operative position is
installed inside each cut-out 58a.
The operating mechanism 53 has a more or less disk-form operating
plate 60 which is installed inside the frame part 51, a pivoting
member 61, an operating rod 62 which causes pivoting member
61 to pivot, a torsion coil spring 63 (used as a shock-absorbing
mechanism) which is installed between the pivoting member 61
and the operating rod 62, and an operating lever 64 which is
connected to the rear end of the operating rod 62 (see FIG.
1).
An anchoring hole 60a is formed in a portion of the operating
plate 60, and an anchoring projection 61a formed on the side
surface of the pivoting member 61 is anchored in this anchoring
hole 60a. Furthermore, a multiple number of holes 60b are formed
in the operating plate 60 at equal angular intervals in the
circumferential direction, and projections 58b formed on the
rear end surface of the retainer 58 are inserted into these
holes 60b. As a result, when the pivoting member 61 pivots,
the retainer 58 is also caused to pivot via the operating plate
60, so that the 60, so that the rollers 57 can be moved between
their operating positions and their inoperative positions. An
engaging element 61b formed on the rear end surface of the pivoting
member 61 and an engaging element 62a formed on the front end
surface of the operating rod 62 are capable of engaging with
each other; however, relative rotation of the two parts is possible
within a prescribed angular range. One end of the torsion coil
spring 63 is fastened to the pivoting member, and the other
end of spring 63 is fastened to the front end surface of the
operating rod 62. Accordingly, the operating force of the operating
rod 62 is transmitted as a rotational moment to the pivoting
part 61 via the torsion coil spring 63.
The spool 4 is installed between the first arm 31 and second
arm 32 of the rotor 3, and is mounted on the tip of the spool
shaft 20 via a drag mechanism 70. The spool 4 has a line-winding
drum part 4a around whose outer circumference the fishing line
is wound, a skirt 4b which is formed as an integral unit with
the rear portion of the line-winding drum part 4a, and a flange
plate 4c which is fastened to the front end of the line-winding
drum part 4a. The flange plate 4c preferably is formed from
a stainless steel plate material, and is mounted on the line-winding
drum part 4a by means of fasteners such as screws 70a. In this
case, the flange plate 4c is slightly bent, and is attached
using the springiness caused by this bending to insure that
no gap is formed between flange plate 4c and the front end of
the line-winding drum part 4a. As a result, the fishing line
cannot become caught between these parts.
The drag mechanism 70 has a pressing member 71 which is pressed
against the inside front end surface of the spool 4, an adjustment
knob 72 which is used to adjust the drag force, pushing springs
73 and 74 which are installed between the pressing member 71
and the adjustment knob 72, and a multiple number of clutch
plates 75 which are installed between the pressing member 71
and the spool 4. In such a construction, the force with which
the pressing member 71 is pressed against the spool 4 can be
adjusted by adjusting the amount of tightening of the adjustment
knob 72. Accordingly, the drag force is adjustable.
During casting, the bail 43 is pushed over into the line
releasing position. As a result, the first and second bail supporting
members 40 and 42 rotate in the same direction about the pivoting
axis M. In this case, the first bail supporting member 40 is
installed on the inner-circumferential side of the first arm
31, and the pivoting axis M is inclined with respect to the
axis of rotation X as shown in FIG. 1; accordingly, the first
bail supporting member 40 and the line roller 41 on the tip
of member 40 move inward from the positions in which the parts
are located when the bail 43 is in the line retrieving position.
As a result, there is little likelihood that the fishing line
will become entangled with the first bail supporting member
40 or line roller 41 when the fishing line is paid out during
casting. Furthermore, although the pivoting axis M is inclined
with respect to the axis of rotation X, both bail supporting
members 40 and 42 rotate about single pivoting axis M, and the
planes of rotation of members 40 and 42 are perpendicular to
pivoting axis M. Accordingly, rotation can be performed smoothly
without any wrenching movement.
During take-up of the fishing line, the bail 43 is pushed
over into the line retrieving position. When the handle 2 is
rotated in this state, this rotational force is transmitted
to the pinion gear 12 via the handle shaft and face gear 10.
The rotational force transmitted to the pinion gear 12 is transmitted
to the rotor 3 via the front part 12a of the pinion gear 12.
Meanwhile, the screw shaft 21 is caused to rotate by the
intermediate gear 23 which engages with the pinion gear 12,
so that the slider 22 which engages with the grooves 21 a formed
in the screw shaft 21 moves back and forth while being guided
by the guide shafts 28 and 29. As a result, the spool shaft
20 and spool 4 perform a reciprocating motion back and forth
along the axis of rotation X, so that the fishing line, which
is guided onto the spool 4 by the bail 43 and the line roller
41, is wound uniformly (with respect to the longitudinal direction
of the spool 4) around the outer circumference of the drum part
4a of the spool 4.
Furthermore, since the slider 22 performs a reciprocating
motion while being guided by two guide shafts 28 and 29, the
reciprocating motion is performed smoothly without any rotation
or inclination of the slider 22. Accordingly, it is not necessary
for the slider main body 25 to cover the entire circumference
of the screw shaft 21. As a result, the space on the opposite
side from the engaging member 26 can be reduced. Consequently,
the amount of lateral protrusion of the rear part of the reel
main body 1 can be reduced.
During the rotation of the rotor 3, members such as the bail
43, etc., tend to cause a rotational imbalance. In the present
embodiment, therefore, the rear end portions of the arms 31
and 32 are offset toward the bail in the line retrieving position,
and the pivoting axis of the bail supporting members 40 and
42 is offset toward the bail in the line releasing position,
in order to eliminate any imbalance that might be caused by
the bail supporting members 40 and 42, line roller 41 or bail
43. Furthermore, any imbalance that might be caused by the line
roller 41 is reduced by installing the second bail supporting
member 42 further forward than the first bail supporting member
41. Moreover, by constructing the second bail supporting member
42 from a heavy material which has a higher specific gravity
than the other parts, it is possible to cause second bail supporting
member 42 to function as a balancer.
In order to prevent the rotor 3 from rotating in the reverse
direction during casting, etc., the rollers 57 are moved into
their operative positions by means of the operating lever 64.
Specifically, as is shown in FIG. 10a, the operating lever 64
is caused to pivot to one side, thus causing the operating rod
62 to pivot in the same direction. This force is transmitted
directly to the pivoting member 61 via the engaging element
62a of the operating rod 62, and is also transmitted to the
retainer 58 via the operating plate 60. As a result, the retainer
58 pivots so that the rollers 57 held in retainer 58 are placed
in a state which allows rollers 57 to move into their operative
positions. When the rotor 3 rotates in the forward direction
(i.e., in the direction of fishing line take-up) in such a state,
the rollers 57 idle between the outer ring 55 and the inner
ring 56. As a result, the rotation of the rotor 3 in the forward
direction is not hindered. On the other hand, if the rotor 3
should rotate in the reverse direction (i.e., in the direction
of fishing line pay-out), the rollers 57 will engage the outer
ring 55 and inner ring 56 so that relative rotation of the rings
becomes impossible. Here, since the outer ring 55 is fastened
to the reel main body 1 via the frame part 51, the rotation
of the inner ring 56, i.e., the rotation of the rotor 3 in one
direction (the direction of fishing line pay-out), is prevented.
When the operating lever 64 is caused to pivot in the opposite
direction from the aforementioned direction (as shown in FIG.
10b), the rollers 57 are caused to move into their inoperative
positions by an action similar to that described above. In this
state, the rollers 57 cannot engage the outer ring 55 and inner
ring 56. Accordingly, the inner ring 56 can rotate in both the
forward and reverse directions relative to the outer ring 55,
so that the rotor 3 can rotate in the direction of fishing line
pay-out.
Here, when the rollers 57 engage the rings 55 and 56, a large
force is required in order to extract the rollers 57 from between
the rings 55 and 56 and move rollers 57 into their inoperative
positions. If an attempt is made to move the rollers 57 directly
by means of the operating rod 62, etc., in this state, there
is a danger that the operating rod 62, etc., will be damaged.
Accordingly, in the present embodiment, a torsion coil spring
63 is installed as a shock-absorbing mechanism between the operating
rod 62 and the pivoting member 61. In this case, when the operating
lever 64 is operated with the rollers 57 engaging in their operative
positions so that a load is applied, the rotational force of
the operating lever 64 is temporarily stored in the torsion
coil spring 63 (this state is illustrated in FIG. 10c). Then,
when the load acting on the rollers 57 in their operative positions
is released, the rotational force stored in the torsional coil
spring 63 is transmitted to the rollers 57 via the pivoting
member 61, etc.
Thus, by installing the torsion coil spring 63 as a shock-absorbing
mechanism in the operating mechanism 53, it is possible to avoid
damage to the operating lever 64 and operating rod 62, etc.
Furthermore, since the retainer 58 is caused to pivot by
the pivoting member 61 via the operating plate 60, inclination
of the retainer 58 can be reduced compared to cases where the
retainer 58 is caused to pivot directly by the pivoting member
61.
In the embodiment described above, second bail supporting
member 42 is installed on the outer-circumferential side of
second arm 32. According to an alternative embodiment, second
bail supporting member 42 can be installed on the inner-circumferential
side of second arm 32, just as first bail supporting member
40 is installed on the inner-circumferential side of first arm
31.
In the embodiment described above, torsion coil spring 63
is installed between operating rod 62 and pivoting member 61.
Another possible embodiment accomplishes shock absorption by
installing some other elastic member, etc.
It would also be possible to omit operating plate 60 installed
between pivoting member 61 and retainer 58.
In the embodiment described above, torsion coil spring 63
is installed between operating rod 62 and pivoting member 61
as a shock-absorbing mechanism. According to another embodiment,
the rotational force can be transmitted directly between operating
rod 62 and pivoting member 61 without installing a shock-absorbing
mechanism.
Furthermore, in the embodiment described above, the system
is designed so that the shock-absorbing mechanism functions
only when the reverse rotation preventing mechanism is released,
i.e., switched from an "on" state to an "off" state. According
to another embodiment, the system is designed so that the shock-absorbing
mechanism functions both when the reverse rotation preventing
mechanism is switched from an "on" state to an "off" state,
and when the reverse rotation preventing mechanism is switched
from an "off" state