U.S. patent number RE46,274 [Application Number 14/631,721] was granted by the patent office on 2017-01-17 for spinning reel for fishing.
This patent grant is currently assigned to GLOBERIDE, INC.. The grantee listed for this patent is GLOBERIDE, INC.. Invention is credited to Masashi Fujioka, Manabu Matsuhashi, Takeshige Ohara, Takashi Shibata.
United States Patent |
RE46,274 |
Shibata , et al. |
January 17, 2017 |
**Please see images for:
( Certificate of Correction ) ** |
Spinning reel for fishing
Abstract
A spinning reel for fishing includes: a reel body including a
front portion; a handle provided in the reel body; a cap-shaped
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body and including a magnet, a cylindrical magnetic body
forming a magnetic circuit between the magnetic body and the magnet
and magnetic fluid maintained between the magnet and the magnetic
ring.
Inventors: |
Shibata; Takashi (Higashi
Kurume, JP), Fujioka; Masashi (Higashi Kurume,
JP), Ohara; Takeshige (Higashi Kurume, JP),
Matsuhashi; Manabu (Higashi Kurume, JP) |
Applicant: |
Name |
City |
State |
Country |
Type |
GLOBERIDE, INC. |
Higashi Kurume-shi, Tokyo |
N/A |
JP |
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Assignee: |
GLOBERIDE, INC. (Higashi
Kurume-shi, Tokyo, JP)
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Family
ID: |
1000002205776 |
Appl.
No.: |
14/631,721 |
Filed: |
February 25, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
13009554 |
Jan 19, 2011 |
8382022 |
Feb 26, 2013 |
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Foreign Application Priority Data
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Jan 19, 2010 [JP] |
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P.2010-009505 |
Dec 22, 2010 [JP] |
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P.2010-285847 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A01K
89/01 (20130101); A01K 89/0117 (20130101); A01K
89/011221 (20150501); A01K 89/01 (20130101); A01K
89/0117 (20130101); A01K 89/011221 (20150501) |
Current International
Class: |
A01K
89/01 (20060101) |
Field of
Search: |
;242/319,247,257,261,262 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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0 992 190 |
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Apr 2000 |
|
EP |
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1 068 800 |
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Jan 2001 |
|
EP |
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11276042 |
|
Oct 1999 |
|
JP |
|
H11-276042 |
|
Oct 1999 |
|
JP |
|
2002-354974 |
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Dec 2002 |
|
JP |
|
2002-354974 |
|
Dec 2002 |
|
JP |
|
2003-319742 |
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Nov 2003 |
|
JP |
|
3981219 |
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Sep 2007 |
|
JP |
|
4057254 |
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Dec 2007 |
|
JP |
|
4057254 |
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Mar 2008 |
|
JP |
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2009-131212 |
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Jun 2009 |
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JP |
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2010-178629 |
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Aug 2010 |
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JP |
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2010178629 |
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Aug 2010 |
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JP |
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Other References
Exended European Search Report dated Jul. 21, 2011 (Application No.
11151356.0-2313; 4-pages). cited by applicant .
W. Ochonski, "Magnetic Fluids Tackle Tough Sealing Jobs", Machine
Design, Dept. of Mechanical Engineering, University of Mining and
Metallurgy, Krakow, Poland; Feb. 17, 2005, pp. 1-9. cited by
applicant .
Eagle Burgmann, "Magnetic Fluid Seal", Catalog CAT No. N004E-11122,
pp. 1-17. cited by applicant .
Parker Hannifin Corporation EPS Division, "Rotary Seal Design
Guide", Catalog EPS 5350/USA, pp. 1-434. cited by
applicant.
|
Primary Examiner: Jastrzab; Jeffrey R
Attorney, Agent or Firm: Pillsbury Winthrop Shaw Pittman
LLP
Claims
What is claimed is:
.[.1. A spinning reel for fishing comprising: a reel body including
a front portion; a handle provided in the reel body; a spool on
which a fishing line is to be wound; a rotor that includes a
cylindrical portion accommodating the front portion of the reel
body and a fishing line guide part, the rotor being rotated by the
rotational manipulation of the handle to wind the fishing line on
the spool, an opening being formed radially through the cylindrical
portion of the rotor; a driving part transmitting the rotation of
the handle to the rotor; a support part provided in the front
portion of the reel body and supporting the driving part; and a
magnetic seal device arranged between the driving part and the
support part..].
.[.2. The spinning reel according to claim 1 further comprising a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body, wherein the magnetic seal device is
mounted in a front portion of the cover body, and wherein the
driving part passes through the front portion of the cover
body..].
.[.3. The spinning reel according to claim 2, wherein the magnetic
seal device is arranged on a surface substantially flush with the
front surface of the cover body, as not to protrude over the
surface..].
.[.4. The spinning reel according to claim 3, wherein the magnetic
seal device includes a magnet, a cylindrical magnetic body forming
a magnetic circuit between the magnetic body and the magnet and
magnetic fluid maintained between the magnet and the magnetic
ring..].
.[.5. The spinning reel according to claim 3 further comprising a
rolling type one-way clutch allowing the rotation of the driving
part in one direction and preventing the rotation of the driving
part in the other direction, wherein the magnetic body functions as
an inner race of the one-way clutch..].
.[.6. The spinning reel according to claim 1, wherein the opening
of the rotor has a rectangular shape..].
.[.7. The spinning reel according to claim 1, wherein the rotor
includes a triangle-shaped notch opening..].
.[.8. The spinning reel according to claim 1, wherein the rotor
includes a pair of arms formed at opposite sides of the cylindrical
portion of the rotor, and a curved reinforcing member connecting
the cylindrical portion of the rotor and the pair of the
arms..].
.[.9. A spinning reel for fishing comprising: a reel body including
a front portion; a handle provided in the reel body; a cap-shaped
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body and including a magnet, a cylindrical magnetic body
forming a magnetic circuit between the magnetic body and the magnet
and magnetic fluid maintained between the magnet and the magnetic
ring..].
.[.10. The spinning reel according to claim 9, wherein the magnetic
seal device is arranged on a surface substantially flush with the
front surface of the cover body, as not to protrude over the
surface..].
.[.11. The spinning reel according to claim 10 further comprising a
rolling type one-way clutch allowing the rotation of the driving
part in one direction and preventing the rotation of the driving
part in the other direction, wherein the magnetic body functions as
an inner race of the one-way clutch..].
.[.12. The spinning reel according to claim 9, wherein the rotor
includes a pair of arms formed at opposite sides of the cylindrical
portion of the rotor, and a curved reinforcing member connecting
the cylindrical portion of the rotor and the pair of the
arms..].
.Iadd.13. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body; a spool on which a fishing line is
to be wound; a rotor including a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool; a driving part passing through the
cover body and transmitting the rotation of the handle to the
rotor; a support part provided in the front portion of the reel
body and supporting the driving part; and a magnetic seal device
mounted in the cover body and including a magnet, a cylindrical
magnetic body forming a magnetic circuit between the magnetic body
and the magnet and magnetic fluid maintained between the magnet and
the magnetic body, wherein the cylindrical magnetic body is fitted
unrotatably with respect to the driving part..Iaddend.
.Iadd.14. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body; a spool on which a fishing line is
to be wound; a rotor including a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool; a driving part passing through the
cover body and transmitting the rotation of the handle to the
rotor; a support part provided in the front portion of the reel
body and supporting the driving part; a magnetic seal device
mounted in the cover body and including a magnet, a cylindrical
magnetic body forming a magnetic circuit between the magnetic body
and the magnet and magnetic fluid maintained between the magnet and
the magnetic body; and a rolling type one-way clutch allowing
rotation of the driving part in a first direction and preventing
rotation of the driving part in a second, opposite direction, the
one-way clutch including an inner race, an outer race, and one or
more rolling members disposed between the inner race and the outer
race, wherein the magnetic body is configured to function as an
inner race of the one-way clutch, wherein the magnetic seal device
further includes a magnetic ring, and wherein the inner race
includes an extended portion extending forwardly so as to be
opposed to an inner edge of the magnetic ring, a front edge of the
extended portion being anterior to a front edge of the outer
race..Iaddend.
.Iadd.15. The spinning reel according to claim 14, wherein the
rotor includes a cylindrical portion attached to the driving part;
and wherein the extended portion is configured to surround at least
a portion of the cylindrical portion of the rotor..Iaddend.
.Iadd.16. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body; a spool on which a fishing line is
to be wound; a rotor including a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool; a driving part passing through the
cover body and transmitting the rotation of the handle to the
rotor; a support part provided in the front portion of the reel
body and supporting the driving part; and a magnetic seal device
mounted in the cover body and including a magnet, a cylindrical
magnetic body forming a magnetic circuit between the magnetic body
and the magnet and magnetic fluid maintained between the magnet and
the magnetic body, wherein the cover body is made of resin, is
detachably attached to the reel body, and includes an outer
surrounding portion, an inner surrounding portion arranged radially
inside the outer surrounding portion, and a front end connecting
portion connecting the inner surrounding portion and the outer
surrounding portion, the spinning reel further including an O-ring
disposed between the outer surrounding portion and the reel
body..Iaddend.
.Iadd.17. The spinning reel according to claim 16, wherein a
plurality of ridges are formed on an outer surface of the outer
surrounding portion..Iaddend.
.Iadd.18. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body; a spool on which a fishing line is
to be wound; a rotor including a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool; a driving part passing through the
cover body and transmitting the rotation of the handle to the
rotor; a support part provided in the front portion of the reel
body and supporting the driving part; and a magnetic seal device
mounted in the cover body and including a magnet, a cylindrical
magnetic body forming a magnetic circuit between the magnetic body
and the magnet and magnetic fluid maintained between the magnet and
the magnetic body, wherein the cover body is made of resin; and
wherein the magnetic seal device further includes a magnetic ring,
wherein the reel body is made of metal, wherein the magnetic ring
includes a front ring element and a rear ring element, and wherein
the front ring element is maintained by a head of a bolt and a
front surface of the cover body, the bolt being screw-coupled to
the reel body..Iaddend.
.Iadd.19. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body; a spool on which a fishing line is
to be wound; a rotor including a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool; a driving part passing through the
cover body and transmitting the rotation of the handle to the
rotor; a support part provided in the front portion of the reel
body and supporting the driving part; and a magnetic seal device
mounted in the cover body and including a magnet, a cylindrical
magnetic body forming a magnetic circuit between the magnetic body
and the magnet and magnetic fluid maintained between the magnet and
the magnetic body, wherein the cover body is made of resin; wherein
the magnetic seal device further includes a magnetic ring, wherein
the reel body is made of metal, wherein the magnetic ring includes
a front ring element and a rear ring element, and wherein the front
ring element is maintained by a head of a bolt and a front surface
of the cover body, the bolt being screw-coupled to the reel body;
wherein the cover body includes an outer surrounding portion, inner
surrounding portion arranged radially inside the outer surrounding
portion, and a front end connecting portion connecting the inner
surrounding portion and the outer surrounding portion; and wherein
the bolt is introduced into a space between the outer surrounding
portion and the inner surrounding portion, the bolt being
screw-coupled to a screw hole formed in the reel body..Iaddend.
.Iadd.20. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body, wherein the magnetic seal device includes a magnet,
a magnetic ring, a cylindrical magnetic body and magnetic fluid,
the magnetic fluid being maintained by a magnetic circuit formed by
the magnet, magnetic ring and the cylindrical magnetic body,
wherein the cylindrical magnetic body is fitted unrotatably with
respect to the driving part..Iaddend.
.Iadd.21. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; a magnetic seal device mounted in the
cover body, wherein the magnetic seal device includes a magnet, a
magnetic ring, a cylindrical magnetic body and magnetic fluid, the
magnetic fluid being maintained by a magnetic circuit formed by the
magnet, magnetic ring and the cylindrical magnetic body; and a
rolling type one-way clutch allowing rotation of the driving part
in a first direction and preventing rotation of the driving part in
a second, opposite direction, wherein the magnetic body is
configured to function as an inner race of the one-way clutch,
wherein the inner race includes an extended portion extending
forwardly so as to be opposed to an inner edge of the magnetic
ring, a front edge of the extended portion being anterior to a
front edge of the outer race..Iaddend.
.Iadd.22. The spinning reel according to claim 21, wherein the
rotor includes a cylindrical portion attached to the driving part;
and wherein the extended portion is configured to surround at least
a portion of the cylindrical portion of the rotor..Iaddend.
.Iadd.23. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body, wherein the magnetic seal device includes a magnet,
a magnetic ring, a cylindrical magnetic body and magnetic fluid,
the magnetic fluid being maintained by a magnetic circuit formed by
the magnet, magnetic ring and the cylindrical magnetic body,
wherein the cover body is made of resin; wherein the cover body is
detachably attached to the reel body; and wherein the cover body
includes an outer surrounding portion, an inner surrounding portion
arranged radially inside the outer surrounding portion, and a front
end connecting portion connecting the inner surrounding portion and
the outer surrounding portion, the spinning reel further including
an O-ring disposed between the outer surrounding portion and the
reel body..Iaddend.
.Iadd.24. The spinning reel according to claim 23, wherein a
plurality of ridges are formed on an outer surface of the outer
surrounding portion..Iaddend.
.Iadd.25. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body, wherein the magnetic seal device includes a magnet,
a magnetic ring, a cylindrical magnetic body and magnetic fluid,
the magnetic fluid being maintained by a magnetic circuit formed by
the magnet, magnetic ring and the cylindrical magnetic body,
wherein the cover body is made of resin; and wherein the reel body
is made of metal, wherein the magnetic ring includes a front ring
element and a rear ring element, and wherein the front ring element
is maintained by a head of a bolt and a front surface of the cover
body, the bolt being screw-coupled to the reel body..Iaddend.
.Iadd.26. A spinning reel for fishing comprising: a reel body
including a front portion; a handle provided in the reel body; a
cover body including a surrounding wall mounted in the front
portion of the reel body; a spool on which a fishing line is to be
wound; a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool; a driving part passing through the cover
body and transmitting the rotation of the handle to the rotor; a
support part provided in the front portion of the reel body and
supporting the driving part; and a magnetic seal device mounted in
the cover body, wherein the magnetic seal device includes a magnet,
a magnetic ring, a cylindrical magnetic body and magnetic fluid,
the magnetic fluid being maintained by a magnetic circuit formed by
the magnet, magnetic ring and the cylindrical magnetic body,
wherein the cover body is made of resin; wherein the reel body is
made of metal, wherein the magnetic ring includes a front ring
element and a rear ring element, and wherein the front ring element
is maintained by a head of a bolt and a front surface of the cover
body, the bolt being screw-coupled to the reel body; wherein the
cover body includes an outer surrounding portion, an inner
surrounding portion arranged radially inside the outer surrounding
portion, and a front end connecting portion connecting the inner
surrounding portion and the outer surrounding portion; and wherein
the bolt is introduced into a space between the outer surrounding
portion and the inner surrounding portion, the bolt being
screw-coupled to a screw hole formed in the reel body..Iaddend.
Description
BACKGROUND ART
The disclosure relates to a spinning reel for fishing for reeling a
fishing line in a spool by the rotational operation of a rotor
having a fishing line guide part, which is cause by the rotational
manipulation of a handle provided in a reel body.
A spinning reel for fishing reels a fishing line in a spool via a
fishing line guide part of a rotor, which is associated with, and
rotated by, the rotational manipulation of a handle.
A fishing spinning reel is used outdoors, the severe environment
where sea water or fresh water may easily wet, or permeate, the
reel. Thus, the corrosion of a support portion of an operation
member, which deteriorates the rotational performance of the reel,
should be prevented.
Japanese Patent No. 4057254 discloses the structure for achieving
the waterproof of a bearing part of an operation member by
providing a retaining member with a seal member. The retaining
member retains the bearing part of the operation member in the
front portion of the reel body. The seal member includes a contact
lip portion being in contact with a boss part of the rotor.
SUMMARY
However, according to the structure disclosed in Japanese Patent
No. 4057254, because the seal member made of a flexible body is in
contact with a rotational body (the boss part of the rotor), the
frictional force (seal resistance) between the seal member and the
rotational body increases, and the moment of inertia also becomes
higher. Thus, there is a problem of worsening the rotational
performance of the rotor, such as the rotational sensitivity or the
smoothness.
Further more, the rotor of a spinning reel for fishing includes
several devices or components mounted such as a fishing line guide
part for guiding a fishing line into a spool, a press retaining
device for shifting, and then retaining, the fishing line guide
part between a fishing line winding state and a fishing line
releasing state, a reverse device for retrieving from the fishing
line releasing state to the fishing line winding state, and a bail
for conveying the fishing line to the fishing line guide part,
being accompanied by the reverse retrieving from the fishing line
releasing state to the fishing line winding state. Accordingly, the
weight of the rotor itself increases, and, thus, the moment of
inertia also becomes higher. In addition to the seal resistance,
the increased moment of inertia due to the increased weight is
considered as a factor deteriorating the rotational sensitivity of
the rotor.
One aspect of the exemplary embodiment is encouraged in
consideration of these problems, and is to provide a spinning reel
for fishing for improving the rotational performance of a rotor by
reducing the moment of inertia of the rotor.
The aspect of the exemplary embodiment provides the following
arrangements:
(1) A spinning reel for fishing comprising:
a reel body including a front portion;
a handle provided in the reel body;
a spool on which a fishing line is to be wound;
a rotor that includes a cylindrical portion accommodating the front
portion of the reel body and a fishing line guide part, the rotor
being rotated by the rotational manipulation of the handle to wind
the fishing line on the spool, an opening being formed radially
through the cylindrical portion of the rotor;
a driving part transmitting the rotation of the handle to the
rotor;
a support part provided in the front portion of the reel body and
supporting the driving part; and
a magnetic seal device arranged between the driving part and the
support part.
(2) The spinning reel according to (1) further comprising a
cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body,
wherein the magnetic seal device is mounted in a front portion of
the cover body, and
wherein the driving part passes through the front portion of the
cover body.
(3) The spinning reel according to (2), wherein the magnetic seal
device is arranged on a surface substantially flush with the front
surface of the cover body, as not to protrude over the surface.
(4) The spinning reel according to (3), wherein the magnetic seal
device includes a magnet, a cylindrical magnetic body forming a
magnetic circuit between the magnetic body and the magnet and
magnetic fluid maintained between the magnet and the magnetic ring.
(5) The spinning reel according to (3) further comprising a rolling
type one-way clutch allowing the rotation of the driving part in
one direction and preventing the rotation of the driving part in
the other direction,
wherein the magnetic body functions as an inner race of the one-way
clutch.
(6) The spinning reel according to (1), wherein the opening of the
rotor has a rectangular shape.
(7) The spinning reel according to (1), wherein the rotor includes
a triangle-shaped notch opening.
(8) The spinning reel according to (1), wherein the rotor includes
a pair of arms formed at opposite sides of the cylindrical portion
of the rotor, and a curved reinforcing member connecting the
cylindrical portion of the rotor and the pair of the arms.
(9) A spinning reel for fishing comprising:
a reel body including a front portion;
a handle provided in the reel body;
a cap-shaped cover body including a surrounding wall mounted in the
front portion of the reel body;
a spool on which a fishing line is to be wound;
a rotor including a fishing line guide part, the rotor being
rotated by the rotational manipulation of the handle to wind the
fishing line on the spool;
a driving part passing through the cover body and transmitting the
rotation of the handle to the rotor;
a support part provided in the front portion of the reel body and
supporting the driving part; and
a magnetic seal device mounted in the cover body and including a
magnet, a cylindrical magnetic body forming a magnetic circuit
between the magnetic body and the magnet and magnetic fluid
maintained between the magnet and the magnetic ring.
(10) The spinning reel according to (9), wherein the magnetic seal
device is arranged on a surface substantially flush with the front
surface of the cover body, as not to protrude over the surface.
(11) The spinning reel according to (10) further comprising a
rolling type one-way clutch allowing the rotation of the driving
part in one direction and preventing the rotation of the driving
part in the other direction,
wherein the magnetic body functions as an inner race of the one-way
clutch.
(12) The spinning reel according to (9), wherein the rotor includes
a pair of arms formed at opposite sides of the cylindrical portion
of the rotor, and a curved reinforcing member connecting the
cylindrical portion of the rotor and the pair of the arms.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side sectional view illustrating a spinning reel for
fishing according to a first embodiment.
FIG. 2 is an enlarged sectional view of a principle part of the
spinning reel for fishing of FIG. 1.
FIG. 3 is a sectional view of FIG. 2 taken along line A-A.
FIG. 4 is a sectional view of FIG. 3 taken along line B-B.
FIG. 5 is an enlarged sectional view of a principle part of FIG.
4.
FIG. 6 is a side view illustrating the portion of the rotor of the
spinning reel of FIG. 1.
FIG. 7 is a sectional view of FIG. 6 taken along line C-C.
FIG. 8 is a sectional view corresponding to FIG. 4 and illustrating
in detail the configuration in which the magnetic seal device is
arranged not to protrude over a surface substantially flush with
the front surface of the cover body.
FIG. 9 is a schematic view illustrating the portion of the rotor of
the spinning reel of FIG. 1.
FIG. 10 is a sectional view corresponding FIG. 4 and illustrating a
spinning reel for fishing according to a second embodiment.
FIG. 11 is an enlarged sectional view of a principle part of FIG.
10.
FIG. 12 is a side view corresponding to FIG. 1, and illustrating
the spinning reel for fishing without an opening in the body
portion of the rotor.
FIG. 13 is an enlarged sectional view corresponding to FIG. 2 and
illustrating a principle part of the spinning reel of FIG. 12.
FIG. 14 is a sectional view of FIG. 13 taken along the line
D-D.
FIG. 15 is a sectional view of FIG. 14 taken along the line
E-E.
FIG. 16 is an enlarged sectional view illustrating a principle part
of FIG. 15.
FIG. 17 is a side view corresponding to FIG. 6 and illustrating the
rotor portion of the spinning reel for fishing of FIG. 12.
FIG. 18 is a sectional view of FIG. 17 taken along line F-F.
FIG. 19 is a sectional view corresponding to FIGS. 15 and
illustrating in detail the structure where the magnetic seal device
is arranged not to protrude over a surface substantially flush with
the front surface of the cover body.
FIG. 20 is a schematic view of the rotor portion of the spinning
reel of FIG. 12.
DESCRIPTION OF PREFERRED EXEMPLARY EMBODIMENTS
Hereinafter, a fishing reel according to an exemplary embodiment is
described in detail with reference to the accompanying
drawings.
FIGS. 1 to 9 illustrate the spinning reel for fishing according a
first embodiment. A reel body 1 (made of, for example, metal)
includes a reel foot 2 integrally formed with the reel body 1, a
rotor 3 rotatably supported in the front of the reel body 1, and a
spool 4 supported moveably back and forth in association with the
rotation of the rotor 3.
The rotor 3 includes a pair of arms 3a (only one is shown in FIG.
1) rotatable around the spool 4. Each arm 3a includes a bail
support member 3c in the front end of the arm 3a in such a way that
the bail support member 3c can freely rotate between a fishing line
winding position and a fishing line releasing position. The bail
support members 3c attaches the base ends of the bail 3b therewith.
One base end of the bail 3b is attached to a fishing line guide
part 3d (See FIG. 6) integrally provided with the bail support
member 3c.
A handle axis 5 is rotatably supported in the reel body 1, and a
handle is attached to the extruded end portion of the handle axis
5. Furthermore, a winding operation device is coupled to the handle
axis 5. The winding operation device includes an operation gear 7
and a pinion 8. The operation gear 7 is integrally mounted to, and
thus rotatable with, the handle axis 5. The pinion 8 includes a
pinion teeth 8a engaged with the operation gear 7, and works as a
rotational operation axis (driving part) extending in the direction
perpendicular to the handle axis 5 and having a cavity, which
extends in the axial direction, formed therein.
As clearly illustrated in FIG. 2, the pinion 8 is rotatably
supported in the reel body 1 in such a way that the front and back
portions of the pinion 8 with respect to the pinion teeth 8a are
supported by bearings 9 and 9', which are fitted to a support
portion 1a (a support portion provided in the front portion of the
reel body 1) integrally formed with the reel body 1. Moreover, the
pinion 8 extends towards the spool 4 and includes the rotor 3
attached to the front end of the pinion 8. Meanwhile, the bearing 9
located in front of the pinion teeth 8a has one end contacting with
the front end of the pinion teeth 8a, and the other end retained in
the axial direction by a retaining member 37 inserted between the
bearing 9 and a rolling type one-way clutch 10 as explained below.
The bearing 9' is axially fixed being fitted in between the back
end of the pinion teeth 8a and the support portion 1a of the reel
body 1.
The rolling type one-way clutch 10 is attached (arranged) on the
pinion 8 ahead of the bearing 9 located in front of the pinion
teeth 8a. The rolling type one-way clutch 10, which is operated by
the rotational manipulation of a switching operation lever 11
provided outside of the reel body 1, works as a well-known
anti-reverse device (stopper) to prevent a backlash of the handle 6
(the rotor 3) in the fishing line releasing direction.
The cavity formed inside the pinion 8 includes a spool axis 12
passing though the cavity in such a way that the spool axis 12 is
moveable in the axial direction. The spool 4 is mounted onto the
front end of the spool axis 12. Moreover, the pinion 8 includes a
well-known spool adjustment device 13 coupled thereto in order to
move the spool 4 (the spool axis 12) back and forth.
In the spinning reel for fishing with these configurations, when
the winding operation is performed with the handle 6, the spool 4
moves back and forth by the spool adjustment device 13 as the rotor
3 is rotated by the winding operation device. Thus, the fishing
line can be uniformly reeled in a winding body 4a of the spool 4
via the fishing line guide part mentioned above.
As shown in FIG. 2, the rolling type one-way clutch 10 includes an
inner race 21 fitted unrotatably with respect to the pinion 8, a
support unit 27 arranged outside the inner race 21, and an outer
race 25 arranged outside the support unit 27. The rolling type
one-way clutch 10 is surrounded, and thus protected, by a
protection cover (ring-shaped cover body) 50 having substantially a
pipe shape (substantially a ring shape) as described below.
The inner circumferential surface of the outer race 25 is formed
with a free rotation region, in which a plurality of rolling
members 28 supported by the support unit 27 can rotate freely, and
a wedge region, in which the rotation of the plurality of rolling
members 28 is prohibited. Each rolling member 28 is pressed toward
the wedge region by a spring member provided in the support unit
27.
The outer race 25 has substantially a pipe shape, and includes a
block end portion 25c substantially blocked by the penetration of
the pinion 8 with respect to the outer race 25, and a open end
portion 25b on the opposite side. The retaining member 37 inserted
between the bearing 9 and the rolling type one-way clutch 10
prevents the outer race 25 from rotating around the reel body 1.
Specifically, for example, the retaining member 37 having a
circular ring shape is provided, at a portion of the retaining
member 37 in a circumferential direction, with a plurality of
coupling portions 37a extruding radially and being arranged at
intervals in a circumferential direction. These coupling portions
37a are locked with an anti-rotation locking portions 25a having a
notch shape and being arranged at the corresponding locations of
the outer race 25. Further, a screw attached to the coupling
portions is coupled to the reel body 1, and thus the outer race 25
is unrotatable with respect to the reel body 1 via such coupling
portions. Meanwhile, in the present embodiment, the outer race 25
is arranged to make the open end portion 25 b face the bearing 9.
Thus, in the present embodiment, the retaining member 37 is fitted
within the cylindrical outer race 25 via the open end portion 25b
(See FIG. 2). In this configuration, the ring-shaped retaining
member 37 retains the bearing 9 axially by making a retaining part
37b, which is arranged inside the circumference of the retaining
member 37, contact with a outer race 9a of the bearing 9.
In these configuration of the one-way clutch 10, when the inner
race 21, accompanied by the pinion 8, rotates in a positive
direction (i.e., when the rotor 3 rotates in a fishing line winding
direction), the rolling members 28 of the support unit 27 is
located at the free rotation region of the outer race 25. Thus, the
rotational force of the inner race 21 is not transmitted to the
outer race 25 (i.e., the inner race 21 is not hindered by the outer
race 25). Therefore, the rotor 3, accompanied by the pinion 8, can
rotate freely. By contrast, when the inner race 21, together with
the pinion 8, is attempted to rotate in a negative direction (i.e.,
when the rotor 3 rotates in a fishing line releasing direction),
the rolling member 28 of the support unit 27 is placed at the wedge
region of the outer race 25, and the rotational force of the inner
race 21 is delivered to the outer race 25, thereby playing a
function as a stopper. Thus, the rotation (reverse rotation) of the
pinion 8 and the rotor 3 is prevented.
The operation of the anti-reverse device with the one-way clutch 10
is designed to be shifted by the switching operation lever 11.
Specifically, as shown in FIG. 2, the switching operation lever 11
includes a switching cam 33 extending substantially in parallel
with the spool axis 12 in the reel body 1, and a front end
extrusion portion 33a of the switching cam 33 is coupled to a
coupling hole 52 of an extension portion 27a extending radially of
the support unit 27. Therefore, in this configuration, the rotation
of the support unit 27 via the switching cam 3 by the rotational
operation of the switching operation lever 11 allows shifting
selectively between a reversible position in which the rolling
member 28 supported by the support unit 27 is forced to remain in
the free rotation region of the outer race 25 against the pressure
of the spring member (i.e., the position where the rotor 3 is
rotatable reversely), and an anti-reverse position in which the
rolling member 28 is forced tube arranged in the wedge region by
the pressure of the spring member (i.e., the position where the
reverse rotation of the rotor 3 is prevented).
As clearly illustrated in FIGS. 4 and 5, the protection cover
(ring-shaped cover body) 50 is made of resin with coating, and is
detachably attached to the reel body 1. Specifically, the
protection cover 50 includes an outer surrounding portion (outer
circumferential wall mounted in the front portion of the reel body
1) 50a arranged outside in the radial direction, an inner
surrounding portion (inner circumferential wall mounted in the
front portion of the reel body 1) arranged inside in the radial
direction, and a front end connecting portion 50c connecting the
surrounding portions 50a and 50b. A bolt 139, which is removably
inserted from the front end connecting portion 50c, is introduced
into the space between the outer surrounding portion 50a and the
inner surrounding portion 50b, and then is screw-coupled to a screw
hole 140 arranged in the end portion of an extension portion 1b of
the reel body 1 extending at the outer circumferential side of the
one-way clutch 10. Thus, the protection cover 50 is detachably
attached to the reel body 1 in a hollow screw type. In this case,
the bolt 139 is screwed to the screw hole 140 until the end surface
of the inner surrounding portion 50b makes contact with the end
surface of the extension portion 1b of the reel body 1.
Accordingly, the reel body 1 is provided with an accommodating
recess 240 having a concave shape and accommodating partially the
pinion 8 (and/or the inner race 21 rotatable integrally with the
pinion 8), which works as an operation member associated with, and
thus rotatable by, the manipulation of the handle 6. Moreover, the
accommodating recess 240 accommodates, and supports, the one-way
clutch 10 therein in a positioning state, and has an opening 240a
in the front side facing the spool 4. The opening 240a is provided
with a magnetic seal device 150, as described below, for sealing
the opening 240a in order to prevent the inflow of moisture or
foreign matters into the opening 240a.
Moreover, a seal member 170, such as an O-ring is inserted between
the end surface of the outer surrounding portion 50a and the reel
body 1. Further, a plurality of ridges 59 are formed axially to
provide an easy grip when the protection cover 50 is attached to,
or detached from, the reel body 1.
The magnetic seal device 150 for sealing the accommodating recess
240 is configured as a unit including a magnet 151 arranged to
surround the pinion 8 at a particular distance, a support member
(magnetic ring) 152 for supporting the magnet 151, the inner race
21, and a magnetic fluid 155 maintained between the magnet 151 and
the inner race 21. The inner race 21 works as a magnetic body
having a pipe shape and forming a magnetic circuit between the
inner race 21 and the magnet 151 (thus, having an axial length at
least against the support member 152) by being inserted to the
one-way clutch 10, while being unrotatably fitted to the pinion 8.
That is to say, in the present embodiment, the cylindrical magnetic
body constituting the magnetic seal device 150 also works as the
inner race 21 of the one-way clutch.
The magnet 151 has a ring shape with a predetermined thickness, and
is formed to include the pinion 8 passed therethough. The support
member 152 is configured to maintain the magnet 151 by sandwiching
the magnet 14 from both sides of the magnet 14.
Moreover, the support member 152 maintains the ring-shaped magnet
151 by sandwiching it, and is arranged to generate a concave
portion 151A along the inner circumference of the magnet 151. The
support member 152, together with the magnet 151, is supported by
the protection cover 50. Specifically, the support member 152 is
maintained by being fitted in between the head of the bolt 139,
with which the support member 152 is in surface-to-surface contact
at its one side, and the end portion of the protection cover 50,
with which the support member 152 is in surface-to-surface contact
at its other side. Between the protection cover 50 and the support
member 152 is a seal member 169 inserted. The support member 152 is
formed to make a gap G from the outer surface of the inner race 21,
which works as a magnetic body.
The inner race 21, as a magnetic body, is made of a metallic
material, such as steel, SUS430, SUS440C, or SUS630. Accordingly,
the magnet 151 foams a magnetic circuit between the support member
152 and the inner race 21, both maintaining the magnet 151.
The magnetic fluid 155 is made by dispersing magnetic particles
such as Fe.sub.3O.sub.4 to surfactant and base oil. The magnetic
fluid 155 has viscosity and reacts to the magnet 151 approached.
Accordingly, the magnetic fluid 155 is stably maintained within the
concave portion 151A and within the gap G, thereby sealing the
opening 240a, by the magnetic circuit formed by the magnet 151, the
support member 152 maintaining the magnet 151, and the inner race
21 working as a magnetic body.
As described above, in the present embodiment, the magnetic seal
device 150 is provided in the front portion of the protection cover
(cover body) 50, though which the pinion 8 as a driving part
passes. Furthermore, the magnetic seal device 150 is arranged not
to protrude over a surface flush with the front surface of the
protection cover 50, as clearly illustrated in FIGS. 4 and 5, and
especially in FIG. 8.
In the present embodiment, the rotor 3 includes a body portion
(cylindrical portion) 3A and a pair of arm 3a mentioned above. The
body portion 3A has substantially a cylindrical shape, and
accommodates the front portion of the reel body 1 (Such
accommodation is illustrated in FIG. 1). The arms 3a are arranged
in both sides of the rotor 3 at 180 degree angle. As clearly
illustrated in FIG. 6, each arm 3a is integrally formed with the
body portion 3A though a connecting portion 3a' extruding radially
from the back portion (the side toward the reel body) of the body
portion 3A. Each arm 3a also extends axially. Accordingly, a gap is
formed between the body portion 3A and each arm 3a, and a skirt
portion 4c of the spool 4 is located in this gap, as shown in FIG.
1.
The pair of arms 3a are provides with a reinforcing member 90. As
illustrated in FIGS. 6 and 7, the reinforcing members 90 extend
from the sides of the pair of arms 3a to the back portion of the
body portion 3A, and are connected to the body portion 3A. It is
preferable to arrange the reinforcing members 90 in both sides of
each arm 3a. The reinforcing members 90 provided in both sides have
substantially the same shape, and extend from the front portion
(the portion provides with the support member 3c) of the sides of
the arm 3a toward the base portion. The reinforcing members 90 are
gradually more apart as they go to the base portion. In other
words, both arms 3a are formed substantially in a tapered shape
when viewed laterally in the direction in which both arms 3a face,
and thus both sides at the base portion of the arms 3a have a gap G
from the reinforcing member 90. The gap G expands gradually when
viewed from the side.
In the present embodiment, the reinforcing member 90 is built
between the pair of arms 3a, as illustrated in FIG. 6, and a
intermediate portion 90A of the reinforcing member 90 is connected,
by integral forming, to the back portion of the body portion 3A of
the rotor 3 (See FIG. 7). Therefore, the reinforcing member 90 is
continuously formed, without any split, between the pair of arms
3a, and is curved in a convex shape towards the reel body 1.
In the present embodiment, as illustrated in FIG. 6, the
reinforcing member 90 has a curved shape towards the reel body
between the pair of arms 3a. At least the lowest portion (the
region of the intermediate portion 90A) is arranged closer to the
reel body than the back edge (the line referred to as P) of the
skirt portion 4c of the spool 4, when the spool 4 moves axially
towards the reel body to the utmost. More specifically, as shown
with line P, it is formed in such a way that portions of both sides
of the back end of the skirt 4c are overlapped when the spool 6
moves towards the reel body at the utmost. Thus, although the spool
4 moves back and forth, the state in the movement can be easily
recognized by a user without any interception of the reinforcing
member 90.
According to this configuration, since the reinforcing member 90 is
connected between the sides of the arms 3a and the back of the body
portion 3A of the rotor 3, stress is dispersed through the
reinforcing member 90 although a big load is exerted on the arms 3a
by the tension of the fishing line. Thus, the distortion of the
arms, for example, is prevented. Moreover, as illustrated in FIG.
7, such an opening as the gap G can be suitably provided by the
girder-type structure of the reinforcing member 90, without an
increased thickness of the base portion of the arms 3a, and thus
the weight can be reduced as much as possible while the strength of
the arms is not diminished.
In addition to these configuration, the present embodiment forms
openings, such as an opening 3B penetrating axially and a notch
opening 3C, in the body portion 3A of the rotor 3. The opening 3B
has a rectangular shape and is arranged at a location facing at
ninety degree angle against the location at which the arm 3a is
formed. The triangle-shaped notch opening 3C is formed at both
sides of the opening 3B. As such, the opening like the opening 3B
or the notch opening 3C is formed at a location other than the
location at which the anus are formed, in order not to reduce the
strength of the arms 3a. Moreover, the intermediate portion 90A of
the reinforcing member 90 is integrally connected to the lower end
portion of the opening 3B.
As described above, the spinning reel for fishing according to this
embodiment can reduce not only the weight of the rotor 3 (achieving
the lightweight of the rotor 3) thanks to the opening 3B (the notch
opening 3C) provided in the rotor 3, but also the seal resistance
by adopting the magnetic seal device 150 instead of a conventional
seal device with frictional resistance (i.e. the synergy effect of
the reduced weight of the rotor and the reduced seal resistance).
Thus, the moment of inertia of the rotor 3 is reduced, and thus the
rotational performance of the rotor 3 can be improved. Furthermore,
thanks to this improvement of the moment of inertia, the
sensitivity in the manipulation between the rotation and the stop
of the rotor 3 can be greatly improved compared to prior arts, and
thus the nibble sensitivity is highly improved because it is
possible to more sensitively react to the variation in the tension
of a fishing line.
In the present embodiment, the magnetic seal device 150 can be
effectively and efficiently installed because it is mounted to the
front of the protection cover 50 through which the pinion 8 passes.
Furthermore, the seal space is effectively formed by the protection
cover 50 including the surrounding walls 50a and 50b, and thus the
seal effect is greatly improved by a synergy effect with the
magnetic seal device 150.
In the present embodiment, the reel body 1 can be made in a compact
form in the axial direction because the magnetic seal device 150 is
arranged so as not to protrude on a surface substantially flush
with the front surface of the protection cover 50. Accordingly, the
reel body 1 can be reduced in size as well as in weight, and thus
the moment of inertia of the rotor can be additionally reduced.
In the present embodiment, the cylindrical magnetic body belonging
to the magnetic seal device 150 plays an additional function as the
inner race 21 of the one-way clutch, thereby reducing the number of
components. Thus, the reel body 1 can be reduced in weight, and the
moment of inertia of the rotor can be additionally reduced.
FIGS. 10 and 11 illustrate a spinning reel for fishing according to
the second exemplary embodiment. In the spinning reel according to
this embodiment, instead of the ridges 59 on the outer
circumferential surface of the outer surrounding portion 50a, a
knurling process 59' is performed axially on the outer
circumferential surface of the outer surrounding portion 50a in
order to provide an easy rotational manipulation by hand. Moreover,
the protection cover 50 is detachably attached to the reel body 1
by screw-coupling a female screw 160 at the end of the outer
surrounding portion 50a to a male screw 162 of the reel body 1.
Furthermore, the support member 152 at the front of the magnetic
seal device 150 is attached by a bolt 200 to the front end
connecting portion 50c of the protection cover 50, and, thus, the
magnetic seal device 150 can be made in a unit (excluding the inner
race 21). The remaining configurations are identical to those in
the first embodiment. Therefore, the structure according to the
second embodiment can achieve the same technical effects as in the
first embodiment.
While the embodiments described above include the opening 3B in the
body portion 3A, which is the cylindrical portion of the rotor 3,
FIGS. 12 to 20 illustrate the structure of a spinning reel for
fishing including a body portion 3A without the opening 3B. This
structure shows the utility of the protection cover (cap-shaped
cover body) 50 itself to the body portion 3A without the opening
3B. The structures in FIGS. 12 to 20 are identical to those in the
first embodiment, except that the body portion 3A does not have the
opening 3B. Thus, although the further explanation is replaced with
the same reference numbers in the drawings, it is clear from the
drawings that the cap-shaped cover body (protection cover)
including surrounding walls 50a and 50b and mounting the magnetic
seal device 150 therein can prevent an unnecessary adhesion of the
magnetic member, and prohibit the rotational performance of the
rotor 3 or the deterioration in the sealing effect. Moreover, the
seal device 150 or the one-way clutch 10 can be accommodated in a
compact form, and, thus, the entire reel can be reduced in
size.
* * * * *