Winding – tensioning – or guiding – Reeling device – With brake
Reexamination Certificate
2000-05-25
2001-09-18
Walsh, Donald P. (Department: 3653)
Winding, tensioning, or guiding
Reeling device
With brake
C242S156200, C242S381600
Reexamination Certificate
active
06290161
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a winder, and more particularly to a braking mechanism of the winder.
BACKGROUND OF THE INVENTION
As shown in
FIGS. 1 and 2
, a prior art winder comprises a wire wheel
8
, which is stopped by a resistance force brought about by an adjustment disk
3
having inner threads
4
, a press ring
5
having outer threads
6
, and a press rod
7
which is put through the through hole
2
of a housing
1
to press against a brake piece. Such a prior art braking mechanism as described above is defective in design in that its braking force is not uniformly distributed, and that it is designed for use by a right-handed person.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a winder with an effective and reliable braking mechanism.
It is another objective of the present invention to provide a winder with a braking mechanism capable of being adjusted in magnitude and direction of the braking force.
The winder comprises a base, a wire wheel, and a braking mechanism. The base is formed of a face plate which is provided with at least one arcuate hole, and a main shaft extending from the face plate. The wire wheel is provided with an axial hole and is rotatably mounted on the main shaft. The braking mechanism comprises a one-way bearing which is disposed in the axial hole of the wire wheel, a shaft sleeve fitted over the main shaft such that a first end thereof is in contact with the inner edge of the one-way bearing, a brake disk mounted on the second end of the shaft sleeve two friction pads arc fastened with the shaft sleeve such that they are located at two sides of the brake disk, a clamp seat slidably disposed on the body of the shaft sleeve, and an adjustment button. The clamp seat comprises a base plate, a through hole for receiving the shaft sleeve, and at least one arcuate plate extending from the base plate to insert into the arcuate hole. The adjustment button is fastened with the arcuate plate and is used to adjust the extent to which the brake disk and the friction pads are held tightly between the base plate and the face plate by the clamp seat. The wire wheel is encountered with a minimum friction force at the time when the wire wheel is turned in a first direction. As the wire wheel is turned in a second direction, the shaft sleeve and the brake disk are actuated to turn by the one-way bearing, thereby resulting in a full-scale friction between the brake disk and the friction pads.
REFERENCES:
patent: 3574339 (1971-04-01), Sarah
patent: 4461435 (1984-07-01), Kovalovsky
patent: 4482106 (1984-11-01), Kovalovsky
patent: 4750687 (1988-06-01), Sievert et al.
patent: 5950949 (1999-09-01), Cockerham
patent: 1114838 (1968-05-01), None
Browdy and Neimark
Rodriguez Joseph
Walsh Donald P.
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