Winding – tensioning – or guiding – Reeling device – Fishing rod reel
Reexamination Certificate
2001-01-30
2002-10-01
Marcelo, Emmanuel M. (Department: 3654)
Winding, tensioning, or guiding
Reeling device
Fishing rod reel
C242S278000
Reexamination Certificate
active
06457661
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to fishing reels.
2. Prior Art
A typical prior art fishing reel shown in
FIG. 1
is comprised of a reel body
10
for attaching to a fishing pole. A main shaft
11
is positioned in body
10
and projects out the front of the body. A spool
12
is positioned around the front or outer end of main shaft
11
. A rotor
13
is positioned around main shaft
11
behind spool
12
and is rotatable about the shaft. A roller
14
is attached to the front of rotor
13
. A pinion gear
15
is positioned within body
10
around the inner end of main shaft
11
and is rotatable independently about the shaft. Pinion gear
15
has a sleeve
16
, and is fixedly connected to rotor
13
through sleeve
16
around main shaft
11
for simultaneous rotation. A lead screw
17
is positioned in body
10
parallel to main shaft
11
. A lead screw gear
18
is fixedly attached to a forward end of lead screw
17
. Lead screw gear
18
is engaged with and driven by pinion gear
15
. An oscillation block
19
has a first end slidably connected to lead screw
17
, and a second end fixedly attached to the inner end of main shaft
11
. Grooves
20
are provided on lead screw
17
for driving oscillation block
19
through conventional connections which are not shown. Pinion gear
15
is driven by a main gear
21
which is driven by a crank handle
22
through conventional connections which are not shown.
When handle
22
is turned, pinion gear
15
is driven by main gear
21
. Rotor
13
is simultaneously driven through its connection with pinion gear
15
to rotate about main shaft
11
. A fishing line (not shown) threaded around roller
14
is wound around spool
12
by rotating rotor
13
. As handle
22
is turned, lead screw gear
18
is also rotated by engagement with pinion gear
15
. Lead screw
17
is rotated by lead screw gear
18
, and oscillation block
19
is repeatedly driven back and forth or oscillated along lead screw
17
. Main shaft
11
and spool
12
are also driven back and forth relative to rotor
13
by being connected to oscillation block
17
. As a result, the fishing line is spread out along the length of spool
12
for smoothly and evenly filling the spool. As fishing line
23
is wound back and forth along the length of the spool, a crisscrossing winding pattern shown in
FIG. 2
is produced.
The crosswind angle between succeeding layers of line is determined by the speed of the spool's back and forth oscillation relative to the speed of the rotor's rotation. The spool oscillation speed is determined by the pitch of grooves
20
on lead screw
17
and the gear ratio between pinion gear
15
and lead screw gear
18
. In a typical prior art fishing reel, the spool oscillation speed is limited because the pitch of grooves
20
is already at a practical maximum, and pinion gear
15
is relatively small. The size of pinion gear
15
is dictated by the desired rotation speed of rotor
13
, and is also limited by the tight space within body
10
. Since lead screw gear
18
is driven directly by relatively small pinion gear
15
, the oscillation speed of spool
12
is limited to winding fishing line
23
at the fine or small crosswind angle shown in
FIG. 2. A
fine crosswind angle is undesirable because succeeding layers of fishing line are almost parallel to each other, and the outer layers tend to dig into the lower layers. When the line is cast or released, it will tend to snag and reduce the casting distance, or even come out bunched together and become tangled.
Another disadvantage of prior art fishing reels is that since lead screw gear
18
is driven directly by pinion gear
15
, lead screw
17
must be almost entirely positioned behind pinion gear
15
. This results in a relatively long reel body
10
which many fisherman find undesirable.
OBJECTIVES OF THE INVENTION
The objectives of the present fishing reel are:
to speed up the spool oscillation to increase the crosswind angle of the fishing line on the spool for smoother casting;
to reduce the length of the reel body for compactness and reduced weight;
to reduce friction in the oscillator for improved performance; and
to be more economical to manufacture.
Further objectives of the present invention will become apparent from a consideration of the drawings and ensuing description.
BRIEF SUMMARY OF THE INVENTION
The present fishing reel is comprised of a reel body for attaching to a fishing pole. A main shaft is positioned in the body and project out the front of the body. A spool is positioned around the front or outer end of the main shaft. A rotor is positioned around the main shaft behind the spool and is rotatable about the shaft. A pinion gear is positioned within the body around the inner end of the main shaft and is rotatable independently about the shaft. The pinion gear is fixedly connected to the rotor through a sleeve around the main shaft for simultaneous rotation. A drive gear is positioned outside the body behind the rotor and coaxial with the sleeve. The drive gear is also rotationally fixed relative to the rotor and sleeve. A lead screw is positioned in the body parallel to the main shaft. A lead screw gear is fixedly attached to a forward end of the lead screw. The lead screw gear is engaged with and driven by the drive gear. An oscillation block has a first end slidably connected to the lead screw, and a second end fixedly attached to the inner end of the main shaft. The pinion gear is driven by a main gear which is driven by a crank handle. The drive gear is preferably larger than the pinion gear for driving the lead screw at higher speed for faster spool oscillation to produce a larger crosswind angle in the fishing line.
REFERENCES:
patent: 4773611 (1988-09-01), Kaneko
patent: 4865262 (1989-09-01), Tsunoda
patent: 5279477 (1994-01-01), Yoshikawa
patent: 5427324 (1995-06-01), Kawashiro
patent: 5564639 (1996-10-01), Yamaguchi
patent: 5662285 (1997-09-01), Hashimoto
patent: 5775312 (1998-07-01), Hashimoto
patent: 5890668 (1999-04-01), Hitomi
patent: 5931398 (1999-08-01), Oh
patent: 5941470 (1999-08-01), Young
patent: 6073870 (2000-06-01), Shinohara et al.
patent: 6290157 (2001-09-01), Shibata
Lo Jack
Marcelo Emmanuel M.
PACP, Inc.
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