Cycle brake operating device

Claim 2

A brake operating device adapted to be mounted to a bicycle drop type handle bar having a straight rod section and a substantially U-shaped bent rod section extending downwardly and forwardly from an end of said straight rod sEction, comprising: a. a bracket member which is secured to said bent rod section, b. a main lever which is rotatably mounted on said bracket member and has two side walls, said main lever having at a foremost end thereof first holes which are located transversely of said main lever through both said side walls thereof, c. an auxiliary lever which is fixed to said main lever, said auxiliary lever having portions substantially parallel to the straight rod section and the bent rod section respectively and being provided at a head thereof with a U-shaped fitting portion which is wrapped over the outer surface of the foremost end of said main level, said fitting portion being provided at opposite side walls thereof with second holes, and d. a fixing pin which is slightly longer than the spaced interval between said side walls of said auxiliary lever and is located in said first and second holes for fixing said auxiliary lever to said main lever when said fitting portion of the auxiliary lever is wrapped over the outer surface of said foremost end of the main lever for permitting said first and second holes to coincide with each other.

Claim 3

The brake operating device according to claim 1, wherein said fixing pin comprises means for retaining a terminal of a control cable for operating a bicycle brake.

Claim 4

The brake operating device according to claim 1, wherein said fixing pin is provided with a screw thread on at least one end in a longitudinal direction thereof and at least one of said second holes of said fitting portion of the auxiliary lever is a threaded hole into which the fixing pin is inserted, said threaded hole being screwably engaged with said threaded end of the pin for fixedly connecting said main and auxiliary levers to each other.

Claim 5

The brake operating device according to claim 1, wherein said fixing pin is formed of two portions one of which has a large diameter and a screw thread at the outer periphery thereof and the other of which has a diameter smaller than that of said large diameter portion, one of said second holes of the fitting portion of said auxiliary lever being larger in diameter than said first holes of the main lever and having a screw thread, said one of said second holes having the screw thread being engaged with said screw thread of the large diameter portion so that said large diameter portion permits the outer surface of one said wall of said main lever to be brought closely into contact with the inner surface of one side wall of said fitting portion, thereby rigidly fixing the auxiliary lever to the main lever.

Claim 6

The brake operating device according to claim 4, wherein said fixing pin is provided at the center of the smaller diameter portion with a hole for retaining a terminal of a control cable and wherein said smaller diameter portion is rotatably attached to said large diameter portion.

Claim 7

The brake operating device according to claim 1, wherein between the outer surface of the foremost end of said main lever and the inner surface of said fitting portion of the auxiliary lever which is secured to said main lever is provided a resilient member urging both levers to be kept apart from each other.

Claim 8

The brake operating device according to claim 6, wherein said resilient member is formed of a metallic leaf spring.

Claim 9

A brake operating device adapted to be mounted to a bicycle drop type handle bar having a straight rod section and a substantially U-shaped bent rod section extending downwardly and forwardly from both ends of said straight rod section, comprising: a. a bracket member which is secured to said bent rod section, b. a main lever which is rotatably mounted on said bracket member and has two side walls, said main lever having at the foremost end thereof first holes which are located transversely of said main lever through both said side walls thereof, c. an auxiliary lever which is fixed to said main lever, said lever having portions substantially parallel to the straight rod section and the bent rod section respectively and being porvided at a head thereof with a U-shaped fitting portion which is wrapped over the outer surface of the foremost end of said main lever, said fitting portion being provided at opposite side walls thereof with second holes, said U-shaped fitting portion having said opposite side walls spaced apart slightly larger than the width of said bracket member, and d. a fixing pin which is slightly longer than the spaced interval between said side walls of said auxiliary lever and is located in said first and second holes for fixing said auxiliary lever to said main lever when said fitting portion of the auxiliary lever is wrapped over the outer surface of said foremost end of the main lever for permitting said first and second holes to coincide with each other, and e. a spacer which is inserted between the outer surface of said foremost end of the main lever and the inner surface of said fitting portion of the auxiliary lever which face one another, said spacer having a length which is at least equal to the distance between the outer and inner surfaces which face each other.

Claim 10

A brake operating device adapted to be mounted to a bicycle drop type handle bar having a straight rod section and a substantially U-shaped bent rod section extending downwardly and forwardly from both ends of said straight rod section, comprising: a. a bracket member which is secured to said bent rod section, b. a main lever which is rotatably mounted on said bracket member and has two side walls, said main lever having at the foremost end thereof first holes which are located transversely of said main lever through both said side walls thereof, c. an auxiliary lever which is fixed to said main lever, said lever having portions substantially parallel to the straight rod section and the bent rod section respectively and being porvided at a head thereof with a U-shaped fitting portion which is wrapped over the outer surface of the foremost end of said main lever, said fitting portion being provided at opposite side walls thereof with second holes, said U-shaped fitting portion having said opposite side walls spaced apart slightly larger than the width of said bracket member, and d. a fixing pin which is slightly longer than the spaced interval between said side walls of said auxiliary lever and is located in said first and second holes for fixing said auxiliary lever to said main lever when said fitting portion of the auxiliary lever is wrapped over the outer surface of said foremost end of the main lever for permitting said first and second holes to coincide with each other, and e. a spacer which is inserted between the outer surface of said foremost end of the main lever and the inner surface of said fitting portion of the auxiliary lever which face one another, said spacer having a length which is at least equal to the distance between the outer and inner surfaces which face each other.

Claim 11

The brake operating device according to claim 8, wherein said spacer includes an elastically deformable material and has an actual length greater than the distance between the outer and inner surfaces which face each other when not inserted between these surfaces.