JP3016526U - Bicycle band brakes - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to reduce the generation of noise in a bicycle band brake as much as possible. [Structure] A lining 4 is fastened to a steel strip 3 with copper studs 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a bicycle brake.

[0002]

[Prior art]

 Conventionally, in band brakes for bicycles, aluminum rivets have been used to fasten the lining and band steel.

[0003]

[Problems to be solved by the device]

 As described above in the section of the prior art, since aluminum rivets are conventionally used to fasten the lining and band steel, the aluminum rivet wears at the same time as the lining wears, and the aluminum powder generated at that time is generated. Lining generated by brake friction Entanglement with powder, moisture, etc. to form a mixed and solidified substance that adheres to the lining.When braking, vibration is induced by the cutting grooves on the sliding surface of the drum, which causes squeaking of the brake. There is.

[0004] The present invention has been made for the purpose of reducing the noise generated during braking in a bicycle band brake in which the lining is riveted to the band steel.

[0005]

[Means for Solving the Problems]

 This is a bicycle band brake in which a lining is fastened to a steel strip with copper studs.

[0006] This invention band brake for bicycles has a steel strip and a lining which are provided with mounting holes at required intervals, the lining is attached to the inner surface of the steel strip, and the corresponding mounting holes are made of copper. It is also possible to insert the studs and press the front and rear ends of the studs to fasten the steel strip and the lining with the copper studs.

[0007]

[Action]

 Since the present invention is configured as described above, by changing the fastening rivet from aluminum material to copper material, even if it is worn, it is difficult for it to become powder due to the spreadability of copper, and its sliding property and drum property. By narrowing the cutting pitch of the sliding surface and making the cutting groove shallow and making the surface smooth, it was possible to eliminate the induction of vibration during braking and to eliminate the squeal of the brake characteristic of the band break.

[0008]

【Example】

 The present invention will be described below with reference to the drawings showing an example of the embodiment. Reference numeral 1 is a bicycle band brake. Reference numeral 2 is a lining band for the bicycle band brake. First, the lining 4 is attached to the inner surface of the steel strip 3 and then the steel strip 3 and the lining 4 are opened at required intervals. Copper studs 5 made of copper are inserted into the holes 3a and 4a, and the front and rear ends thereof are pressed to fasten the steel strip 3 and the lining 4.

Reference numeral 6 is a drum, and 7 is an L-shaped lever, which is connected to an operation lever of a handle (not shown) through an interlocking rope or an interlocking rod. 8 is a brake or a bar.

[0010]

【effect】

 As described above, the band brake for a bicycle according to the present invention, by changing the fastening rivet from the aluminum material to the copper material, does not easily become powder due to the spreadability of copper even when it is worn, and its sliding property and the drum property. By narrowing the cutting pitch of the sliding surface and shallowing the cut groove grooves and smoothing the surface, induction of vibration during braking can be eliminated, and the squeal of the brake peculiar to the band brake can be eliminated. It does not occur and has the effect of driving lightly.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a bicycle band brake of the present invention.

FIG. 2 is likewise an enlarged side sectional view of the main part of the device.

FIG. 3 is a sectional view illustrating a state where a drum sliding surface is improved by the present invention.

FIG. 4 is a sectional view of a conventional drum sliding surface.

[Explanation of symbols]

 1 Bicycle band brake 2 Lining band 3 Steel strip 5 Copper stud 6 Drum

Claims (2)

[Scope of utility model registration request] 1. A bicycle band brake in which a lining 4 is fastened to an inner surface of a steel strip 3 by a copper stud 5. 2. The steel strip 3 and the lining 4 are provided with mounting holes 3a and 4a at required intervals, and the lining 4 is attached to the inner surface of the steel strip 3 to attach the corresponding mounting holes 3a, 4a. 2. The bicycle band brake according to claim 1, wherein copper studs 5 are inserted into 4a, front and rear ends thereof are pressed, and the steel strip 3 and the lining 4 are fastened with the copper studs 5.