Winding – tensioning – or guiding – Reeling device – Fishing rod reel
Reexamination Certificate
2000-08-04
2001-12-04
Marcelo, Emmanuel M. (Department: 3653)
Winding, tensioning, or guiding
Reeling device
Fishing rod reel
Reexamination Certificate
active
06325314
ABSTRACT:
The present invention relates to a device for a spinning reel designed to give the spool an initial acceleration, said spinning reel comprising a reel frame body with first and second side frames, means keeping the side frames together, a cover over the first side frame, a cup covering the cover and the first side frame, a spool journalled in the side frames of the reel frame body, devices for operating the reel and a spring means
Modern spinning reels are very smoothrunning as they generally are provided with high quality bearings in all rotating parts. All parts affecting operation and performance in the casting moment are in most cases made of high quality, light material. To achieve large flying distance with heavy sinkers does not cause many problems since the kinetic energy absorbed to spin up the line-filled spool is relatively small compared to the total amount of kinetic energy of the sinker.
Using light-weighted sinkers drastically reduces the flying distance as a great deal of the kinetic energy of the sinker is used to start the spool filled with line. The spools in modern casting reels are as light as can be achieved without jeopardising the strength and operation. However the line on a filled spool has a relatively big mass whose centre of gravity is located at a greater distance from the rotation axis than the mass of the spool does, which is a condition that is difficult to do something about. Therefore a spool filled with line has a large momentum of inertia that takes great deal of the kinetic energy in the initial stage, the so-called “spin-up” process, and thereby reduces the initial velocity of the sinker and the casting length is reduced. It becomes naturally to consider how the initial moment of the casting could be affected so that the initial velocity of the sinker would not be reduced by the moment of inertia of the spool filled with line.
U.S. Pat. No. 4,881,697 discloses several solutions of devices for forcibly rotating the line spool on a spinning reel. All the solutions are based on that the operator manually stretches a spring that is released at the moment of casting and via a gear affects the axis of the line spool. Both torsion spring and compression spring are suggested in the solutions. In all cases the spring force is transferred to the spool via a segmented gear, which releases the spool for rotation after the spring has transferred the energy to the spool. Some of the solutions suggested involves an extra manual operation to stretch the spring by operating a lever outside the reel or, like in a suggested solution, press a bar against a compression spring, whereby a linear segment gear on the bar transfers the spring energy to the axis of the spool.
However in the solutions suggested the spool has to be released from the crank mechanism by a first manual operation and after this the spring is stretched by a second manual operation to a stop position. The spool is prevented from being rotated by the stretched spring before casting is performed with a third manual operation when the thumb is released from the spool filled with line. Thus the device creates a casting routine with more manual operations than is normal and no possibility to easily have an influence of how much the spring is stretched. The situation with short casts from shores with reeds and bushes requires that the tension of the spring is different from that of maximum casting range. It is thus a need to easily and quickly changing the spring tension.
No other effective and rational solutions not requiring altered casting routine are known and an object of present invention is therefore to provide a device giving the line spool on a spinning reel a contribution of a desired amount of acceleration in the moment of casting without executing any additional manual operations and without any other operating means than those normally existing and that the line spool is released from the crank mechanism and hold back in a normal way by means of the usually existing thumb key. Another object is to provide a simple device by means of which the contribution of acceleration can be adapted to different weights of the sinker.
These objects are achieved by a device having the characteristics given in claim
1
and the subsequent claims.
REFERENCES:
patent: 871345 (1907-11-01), Kleinschmidt
patent: 871346 (1907-11-01), Kleinschmidt
patent: 2309574 (1943-01-01), Busha
patent: 3612436 (1971-10-01), Shakespeare
patent: 4762290 (1988-08-01), Emura et al.
patent: 4881697 (1989-11-01), Kaneko
patent: 5601246 (1997-02-01), Takahashi
patent: 0813810 (1997-12-01), None
patent: 62-253318 (1989-04-01), None
patent: 340383 (1971-11-01), None
Banner & Witcoff , Ltd.
Marcelo Emmanuel M.
LandOfFree
Device for a spinning reel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for a spinning reel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for a spinning reel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2587843