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US 6,684,982 B2Granted
Cable disc brake with manual wear adjustment mechanism
AssigneeShimano Inc.
InventorOsamu Kariyama
Life of this patent
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AssigneeShimano Inc.
InventorOsamu Kariyama
Estimating the term…
A bicycle cable disc brake is provided a disc brake pad adjustment mechanism to adjust the spacing between the friction pads. Basically, the cable disc brake has a first caliper housing portion containing a cable actuated mechanism, and a second caliper housing portion containing the disc brake pad adjustment mechanism. The disc brake pad adjustment mechanism has a caliper housing portion, an adjusting axle, an adjusting plate and an adjustment biasing member. The adjusting axle movably is coupled to the caliper housing portion to rotate about a longitudinal axis of the adjusting axle. The adjusting plate is coupled to the adjusting axle to move axially along the longitudinal axis of the adjusting axle upon rotation of the adjusting axle relative to the caliper housing portion. The adjustment biasing member is operatively disposed between the caliper housing portion and the adjusting axle and arranged to axially urge the adjusting axle against the caliper housing portion. The adjusting axle and the caliper housing portion is configured with an indexing arrangement therebetween to selectively retain the adjusting axle in a predetermined angular position about along the longitudinal axis of the adjusting axle relative to the caliper housing portion.
A disc brake pad adjustment mechanism comprising:
A disc brake pad adjustment mechanism comprising:
A disc brake pad adjustment mechanism comprising:
A disc brake pad adjustment mechanism comprising:
A disc brake pad adjustment mechanism comprising:
A disc brake pad adjustment mechanism comprising:
A cable disc brake comprising:
A cable disc brake comprising:
A cable disc brake comprising:
A cable disc brake comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Arranged in or on the brake: adapted for drawing members together , e.g. for disc brakes
Brakes ; Arrangements thereof: constructional features of brake elements, e.g. fastening of brake blocks in their holders
Non-automatic: with screw-thread and nut
Parts or details of disc brakes: partly lined, i.e. braking surface extending over only a part of the disc circumference
Term ended 8 Mar 2022 (estimated)
1. Field of the Invention
This invention generally relates to a cable operated disc brake for a bicycle. More specifically, the present invention relates to a cable operated disc brake with a disc brake pad adjustment mechanism to adjust the spacing between the friction pads.
2. Background Information
Referring now to the attached drawings which form a part of this original disclosure:
FIG. 1 is a side elevational view of a bicycle with a pair of cable disc brakes coupled thereto in accordance with one embodiment of the present invention;
FIG. 2 is a partial side elevational view of a front portion of a bicycle with a front cable disc brake coupled thereto in accordance with one embodiment of the present invention;
Referring initially to FIGS. 1-3, front and rear portions of a bicycle 10 are illustrated with a pair of cable disc brakes 12a and 12b coupled thereto in accordance with one embodiment of the present invention. Bicycles such as the bicycle 10 are well known in the art, and thus, the bicycle 10 and its various components will not be discussed or illustrated in detail herein. It will be apparent to those skilled in the art that the bicycle 10 can be any type of bicycle, e.g., mountain bike, a hybrid bike or a road bike. The bicycle 10 is a conventional bicycle, which basically includes a bicycle frame 13 with a handlebar 14, a front 15a, a rear fork 15b, a front wheel 16a, a rear wheel 16b and a drive train 17.
As seen in FIGS. 2-4, the front and rear cable disc brakes 12a and 12b are identical to each other, except for their connections to the bicycle 10 and their respective brake operating mechanisms 18a and 18b. Specifically, the front cable disc brake 12a is mounted to the front fork 15a and operatively coupled to the front brake operating mechanism 18a via a front brake cable 19a. The rear cable disc brake 12b, on the other hand, is coupled to the rear fork 15b and the rear brake operating mechanism 18b via a rear brake cable 19b. The front and rear brake operating mechanisms 18a and 18b are well known in the art, and thus, they will not be discussed or illustrated in detail herein.
Basically, the front brake operating mechanism 18a is designed to actuate the front disc brake 12a to stop rotation of the front wheel 16a. More specifically, the front brake operating mechanism 18a is operatively coupled to the front disc brake 12a by the front brake cable 19a to apply a forcible gripping action on a front disc brake rotor 20a that is fixedly coupled to the front wheel 16a. Likewise, the rear brake operating mechanism 18b is designed to actuate the rear disc brake 12b to stop rotation of the rear wheel 16b. More specifically, the rear brake operating mechanism 18b operatively coupled to the rear disc brake 12b by the rear brake cable 19b to apply a forcible gripping action on a rear disc brake rotor 20b that is fixedly coupled to the rear wheel 16b.