CN2506520Y

CN2506520Y - Chain box assembly for bicycle

Info

Publication number: CN2506520Y
Application number: CN 01261085
Authority: CN
Inventors: 黄桂祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-07
Filing date: 2001-09-07
Publication date: 2002-08-21
Anticipated expiration: 2011-09-07

Abstract

The utility model provides a chain box assembly of a bicycle, which mainly comprises a clamping seat arranged on an appropriate position of circumferential edge of the chain box, a clamping piece arranged on a joint end of a plate opposite to the chain box, and a long hole arranged on an appropriate position of the joint end of the plate and has appropriate adjustment based on thickness for number of plate of different change gears. When the utility model is assembled, the clamping seat is fastened on the clamping piece of the plate by a through hole of the chain box through a pedal plate. The structure of the chain box that can be assembled and disassembled rapidly as well as is suitable for change gears with different sections of speed is constituted by the utility model through the clamping and engagement of the clamping seat and the clamping piece.

Description

The bicycle chain case assembly

Technical field

The utility model relates to a kind of bicycle chain case assembly.

Background technology

Existing bicycle chain case assembly, mainly be on chain, to hang a chain cover, the all lateral margins of this chain cover are provided with the hole of predetermined number, and by bolt with chain cover locking on the relative bonding end of plate, though this structure can reach basic protection and the aesthetic that prevents foreign matter heave in chain sprocket, it still has following shortcoming to demand urgently improving in use unavoidably:

(1) because between car body is advanced, because of ground rugged and rough, often make chain on the car body be subjected to the powerful vibrations of external force and come off, and the obstruct that is subjected to chain cover not only causes to repair and is difficult for, and when assembling, dismounting chain cover, need to carry out, thereby cause user's inconvenience by accessory appliancess such as wrench, corkscrews.

(2) existing Regular Bicycle is the speed changing structure of multistage speed, sprocket piece number on the many pivots of Duan Suyue is also many more, the relative increase chain cover and the thickness of plate, for meeting the bicycle structure of different speed section, and must offer the chain cover mould of different size dimensions, not only technology is loaded down with trivial details, also increases dealer and customer's relative cost.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of assembling quick, for convenience detach, and the bicycle chain case assembly of being convenient to keep in repair.

Another purpose of the present utility model is to provide a kind of bicycle chain case assembly that reduces production costs.

In order to achieve the above object, the utility model provides a kind of bicycle chain case assembly, and described chain case assembly mainly comprises chain cover, plate and tingle; Described chain cover has a plurality of braking seats in that all lateral margins are one-body molded, and is provided with a through hole in the centre; Described plate is arranged to have preset length and width, is provided with a through hole at appropriate location, and in the side abutting end is set, and this abutting end appropriate location is provided with a slotted hole, and on abutting end a sheathed holding piece; Described tingle is by sheetmetal institute bending forming; The braking seat of described chain cover with the mutual buckle of the holding piece of plate, engage, reach and can assemble fast, dismantle, and be convenient to maintenance, and applicable structure at different speed section.

The beneficial effects of the utility model are: because the utility model is provided with braking seat in chain cover periphery appropriate position, and be provided with holding piece at the abutting end place of the relative chain cover of plate; When combination, via stretcher, and its braking seat is fastened on the holding piece of plate the through hole of chain cover, by both mutual buckle, joints, reach quick assembling, dismounting, and be convenient to maintenance.And bicycle chain case assembly of the present utility model, abutting end appropriate position in the plate both sides is provided with slotted hole, and the setting of cooperation tingle, can do suitable adjustment according to the thickness of different variable gear sheet numbers whereby, and need not offer the mould of different size dimensions again.The clip member that can fasten mutually particularly is set on chain cover and plate, and can adjusts clip gap length distance between the two, reach quick inlay card and fasten, and be applicable to the structure of different speed section ramp gear chain box.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is the three-dimensional structure diagram of the utility model one preferred embodiment;

Fig. 2 is the partial enlarged drawing of the utility model one preferred embodiment;

Fig. 3 is the three-dimensional exploded view of the utility model one preferred embodiment;

Fig. 4 is the three-dimensional exploded view of another preferred embodiment of the utility model;

Fig. 5 A, Fig. 5 B are each running condition scheme drawing of fixed plate of the utility model preferred embodiment;

Fig. 6 makes the three-dimensional exploded view of another preferred embodiment for the utility model.

The specific embodiment

Fig. 1 is the three-dimensional structure diagram of the utility model one preferred embodiment, and with reference to Fig. 2, Fig. 3, can be clear that from figure the utility model mainly comprises:

Chain cover 1, institutes such as plate 2 and tingle 3 form; Wherein, chain cover 1 is at the more than one braking seat 11 of all lateral margins one-body molded (or more than two combination), and is provided with a through hole 12 in middle appropriate position; Plate 2 is arranged to have suitable length and width, be provided with a through hole 22 in middle appropriate position, and extend an abutting end 21 to both sides, this abutting end 21 appropriate locations cutter is established a slotted hole 211, and on abutting end 21 a sheathed holding piece 23, the seat of this holding piece 23 wears a through hole 232 on the groove; Tingle 3 is by sheetmetal institute bending forming, and at one end stubbornly is converted into one curved 31, in order to the folder location of pulling.

When combination, at first plate 2 is installed in the siphunculus and the pedal pin joint part of car body 4, and the abutting end 21 that makes plate 2 two ends is set in the seat groove 231 of holding piece 23, cooperate the folder that is embedded of tingle 3 to pull, and by the through hole 232 of a bolt 24 through holding piece 23 and

tingle

3,32 and the slotted hole 211 of abutting end 21, engage and form a locking, and the sprocket wheel and the stretcher 41 that are provided with chain 42 are assembled on the predeterminated position, again with the through hole 12 of chain cover 1 through stretcher 41, and its braking seat 11 is fastened on the holding piece 23 on the plate 2, and make chain cover 1 other end hang on the defeated axle 43 of car body 4, promptly finish assembling.

Fig. 4 is the three-dimensional exploded view of another preferred embodiment of the utility model, and wherein, the holding piece 23 of the braking seat of this chain cover 1 11 and plate 2 also can be monolateral fastening, so that the another kind of structure of using to be provided except bilateral button portion.

When using, by the braking seat 11 of chain cover 1 and mutual inlay card, the fastening of the holding piece 23 of plate 2, reach quick assembling, dismounting, and slotted hole 211 by plate 2 both sides abutting ends 21, and the setting of cooperation tingle 30, can make suitably to adjust (shown in Fig. 5 A, Fig. 5 B) according to the quantity (Duan Su) of different variable gears thus, and need not offer the mould of different size dimensions again.

Fig. 6 pitches the three-dimensional exploded view of a preferred embodiment for the utility model, wherein, braking seat 11, also can establish through hole 110 thoroughly at appropriate location, make bolt 111 with braking seat 11, be installed in by nut 112 on the through hole 10 of chain cover 1, and cooperate the abutting end 21 and holding piece 23 of aforementioned plate 2, form another kind of compound type and be convenient to the structure of fast quick-detach.

By the above as can be known, bicycle chain case assembly of the present utility model has really and is convenient to assembling, dismounting, and improve the problem that existing maintenance is difficult for, and have the effect of cost-cutting concurrently, and it is not seen in public use, the regulation that meets patent law, the spy proposes utility application in accordance with the law.

Claims

1. bicycle chain case assembly, it is characterized in that: described chain case assembly mainly comprises chain cover, plate and tingle;

Described chain cover has a plurality of braking seats in that all lateral margins are one-body molded, and is provided with a through hole in the centre;

Described plate is arranged to have preset length and width, is provided with a through hole at appropriate location, and in the side abutting end is set, and this abutting end appropriate location is provided with a slotted hole, and on abutting end a sheathed holding piece;

Described tingle is by sheetmetal institute bending forming;

The braking seat of described chain cover with the mutual buckle of the holding piece of plate, engage.

2. bicycle chain case assembly according to claim 1 is characterized in that: the braking seat of described chain cover and the holding piece of plate are bilateral button portion or monolateral fastening.

3, bicycle chain case assembly according to claim 1 and 2 is characterized in that: described tingle is converted into one and is convenient to press from both sides the curved portion of location of pulling in that open end is stubborn.

4. bicycle chain case assembly according to claim 1 is characterized in that: described chain cover is provided with through hole, and braking seat is installed in the through hole place of chain cover with bolt and nut.