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US 3,966,229 AGranted
Pedal actuated bicycle brake
OwnerEdwin E. Fosterinventor
Life of this patent
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OwnerEdwin E. Fosterinventor
Estimating the term…
A bicycle having front and rear wheel caliper brake assemblies which are connected to a swingably mounted lever which in one form of the invention is operatively engaged to the pedal shaft through friction-producing elements as well as to cables controlling the brake assemblies so that upon back pedaling action the brakes will be automatically applied; but with there being a linkage connection between said lever and a pawl engageable with a driven sprocket on the rear axle to promote slackness in the transmission chain upon brake application. In another form of the invention, the particular lever member is operatively engageable with the pedal shaft by bearing elements carried thereon and to a front pawl lockable with a drive sprocket; and there being an elongated finger-like element fixed to the lever and engageable with the transmission chain for assuring of slackness therein upon release of the said front pawl. In a further form of the invention, the particular lever member is operatively connected to a pawl lockable with a driven sprocket by a cable from the front pawl, and with a spring element engaging the cable for causing slackness to develop in the transmission cable. The bicycle also incorporates a handle bar readily shiftable between touring and racing positions, as in ten-speed bicycles, and having shift controls in the ends thereof for actuation in like manner regardless of the position in which the handle bar may be disposed.
In combination with a bicycle having a frame, front and rear wheels supported on said frame, a pedal crank assembly with a main shaft and pedal cranks a drive sprocket carried on said main shaft, a driven sprocket engaged upon said rear wheel, a transmission chain interconnecting said drive and driven sprockets, and front and rear wheel caliper brakes, a brake control assembly comprising a lever swingably mounted on said frame for movement between an upper an upper normal position and a downward position, means engaged upon said main shaft and to said lever, said means being adapted to bindingly restrict rotation of said main shaft upon back pedaling action whereby said lever is swung into downward position, means operatively engaged to said lever inhibiting tension in said transmission chain between said drive sprocket and said driven sprockets when said lever is in downwardly swung position, first and second cable means respectively connecting said lever and said front and rear wheel caliper brakes effecting braking action thereof upon downward swinging of said lever.
For use with a bicycle having a frame, front and rear wheels supported on said frame, a pedal crank assembly with a main shaft and pedal cranks, a drive sprocket carried on said main shaft, a driven sprocket engaged upon said rear wheel and a transmission chain interconnecting said drive and driven sprockets, and front and rear wheel caliper brakes, a brake control assembly comprising a lever swingably mounted on said frame between upper normal position and downward position, said lever having a portion rearwardly of said drive sprocket, first and second cable means respectively connecting said lever and said front and rear wheel caliper brakes, a pawl pivotally mounted on said lever on its said rearward portion and being engageable with said drive sprocket upon bicycle back pedaling action, means interconnecting said pawl and said drive sprocket for slipping action when said drive sprocket is rotating in a direction for forward travel of said bicycle and for frictional engagement with said drive sprocket when said drive sprocket is rotating in rearward direction whereby in such latter condition said pawl is rocked into sprocket-engaged relationship, causing downward swinging of said lever causing braking action upon said front and rear wheel caliper brakes.
In combination with a bicycle having a frame, front and rear wheels supported on said frame, a pedal crank assembly with a main shaft and pedal cranks, a drive sprocket carried on said main shaft, a driven sprocket engaged upon said rear wheel, a transmission chain interconnecting said drive and driven sprockets, and front and rear wheel caliper brakes, a brake control assembly comprising a lever swingably mounted on said frame for movement between an upper normal position and a downward position, locking means engageable with said drive sprocket upon downward swinging of said lever, means engaging said transmission chain upon engagement of said locking means with said drive sprocket for producing slack therein, first and second cable means respectively connecting said lever and said front and rear wheel caliper brakes effecting braking action thereof upon downward swinging of said lever.
Dependencies are inferred from the claim text.