Patent
Single-handled vehicle brake system
TLDR
In this paper, a transmission unit for bicycle brakes consisting of a single operating force input (10, 12) connected to a force multiplier (14) which distributes said multiplied force between two operating force outputs (16, 18) via a differential which equalizes the two operating forces outputs while giving preferential motion of one of the outputs in the phase of motion prior to the full equalization of the multiplied operating force.Abstract:
A transmission unit for bicycle brakes consisting of a single operating force input (10, 12) connected to a force multiplier (14) which distributes said multiplied force between two operating force outputs (16, 18) via a differential which equalizes the two operating force outputs while giving preferential motion of one of the outputs in the phase of motion prior to the full equalization of the multiplied operating force. This unit allows a single brake cable (12) from a control lever (10) to connect within the unit to a cam actuator follower which transfers this single operating force by means of a ratio modulating cam lever (26) which incorporates a guide pulley which moves via a fulcrum pivot axle (28) located between the cam structure and the guide pulley structure. This mechanism is combined with a cable (16, 18) which is looped around 180° of the guide pulley and which exits the unit in parallel paths in a direction of opposition to the motion of the cam structure via the pivot axle described. Each end of the pulley-actuated brake cable described connects to one of each of the two wheel brakes allowing equalization of the distributed force. A light friction generating device (32-36) within the unit connects to one of the two operating force outputs to insure preferential actuation of the rear wheel brake within the phase of operation of initial brake-to-wheel contact but prior to full operating force application, during which full equalization is desired so as not to compromise the efficient transfer of the operating force input to the two operating force outputs.read more
Citations
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Patent
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Drive mechanism for a bicycle transmission assist mechanism
TL;DR: In this article, a drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member, which includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotation direction.
Patent
Actuating device for a brake
TL;DR: In this paper, an actuation device for a brake (40, 41, 42, 43, 50), for applying an output force (FA) to means, which generate braking force, depending on an input parameter (FE), comprising a lever (1) and a force generator (7) which brings a force (FFeder) to bear on the lever at an effective angle (α), relative to the longitudinal axis of the lever.
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Braking lever assembly for synchronically actuating braking mechanisms
TL;DR: In this paper, a braking mechanism assembly for a motorcycle or bicycle is presented, in which the braking mechanisms of both the front and rear wheels can be simultaneously and synchronously actuated to ensure a safe and effective braking.
References
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Patent
Brake operating device for a bicycle
TL;DR: In this paper, a brake operating device for a bicycle brake having front wheel and rear wheel brakes is provided with at least one control lever, an associated member for transmitting an operating force of the control lever to the movable control member, a first and a second brake wire transmitting operation of the locomotive's operation to the front and rear wheels, and first and second connecting members connecting the first wheel wires to the moving member.
Patent
Safety actuating device adapted for two wheeled vehicles
TL;DR: In this paper, a device for controlling the application of braking action to a vehicle having at least two wheels, one wheel being a forward wheel, the other wheel being an rearward wheel, each wheel having associated therewith, means for braking and unbraking the rotation thereof in response to displacement inputs directed to the forward and rearward associated operator control means.
Patent
Brake system for bicycles
TL;DR: In this paper, a brake system for bicycles is described where a pair of operating transmission cables separately connected to two brake levers are commonly connected to a connecting member carried on a body frame, for movement in a direction of cables pulled.
Patent
Hydraulic bicycle brake system
Keizo Shimano,Yuji Fujii +1 more
TL;DR: In this article, a hydraulic bicycle brake system comprising a master cylinder having dual chambers and dual pistons associated respectively, with each operating in sequence the rear and front wheels against different tension springs on the respective wheel brake unit, with provision in the master cylinder construction for operating either wheel brake in the event fluid should leak from the other cylinder.
Patent
Brake system and apparatus and method therefor
TL;DR: A brake system and method of braking including brake pads made of an "anti-friction" material, which may be lubricated, to establish a constant wet coefficient of friction in use with braking force applying apparatus for applying relatively high braking force as mentioned in this paper.