CN205273788U - Fixing device of bicycle derailleur - Google Patents

Abstract

The utility model relates to a bicycle derailleur technical field, especially a fixing device of bicycle derailleur. It is including taking open -ended fixed loop and backup pad, fixed loop and backup pad fixed connection, the diameter B of fixed loop is 20mm - 30mm, the width A of fixed loop is 9mm - 15mm, the thickness C of fixed loop is 1.5mm - 4mm. The utility model discloses a fixed loop is two independent spare parts with the backup pad, consequently, the utility model discloses a both can distinguish the shaping fixed loop and backup pad to making the intensity of fixed loop and backup pad all improve greatly, having simplified manufacturing process, reduced the production degree of difficulty and manufacturing cost, rethread spiro union or riveted method are fixed their fixed connection on the bicycle handlebar together simultaneously after the shaping, easy operation convenient and fixed loop and backup pad firm in connection, thus satisfy the high strength requirement of bicycle derailleur.

Description

The fixing device of bicycle speed-varying unit

Technical field

This utility model relates to bicycle speed-varying unit technical field, particularly the fixing device of a kind of bicycle speed-varying unit.

Background technology

At present, the finger pull type variator of bicycle is typically all the direction on the handle being fixed on bicycle by retainer ring, and the common annexation of existing bicycle speed-varying unit and retainer ring is usually following three kinds, the first is that shell and the retainer ring of bicycle speed-varying unit is fixing is connected, the shell that the second is bicycle speed-varying unit is one-body molded with retainer ring, and the third is that the gripper shoe in bicycle speed-varying unit is one-body molded with retainer ring.

The first annexation, switch such as China Patent No. CN98103649.X variator on a kind of bicycle disclosed in October 17 calendar year 2001, disclosed in its Figure of description, the shell of bicycle speed-varying unit is with retainer ring to be that mode with bolts is fixed, owing to the parts of bicycle speed-varying unit and inside are to pass through shell, the gripper shoe of retainer ring and bicycle speed-varying unit supports fixing, therefore retainer ring, shell and gripper shoe three need higher intensity, in view of the foregoing, shell, retainer ring, need to adopt the material that intensity is higher to make or adopt special manufacturing process with gripper shoe three, thus improving both intensity, to meet the requirement of bicycle speed-varying unit high intensity. and the fixing inconvenience of the finger pull type variator of existing bicycle, shell and retainer ring need first to connect, then again through on the handlebar being bolted to bicycle.

The second annexation, such as China Patent No. CN92243095.0 gearbox controller on bicycle a kind of disclosed in 6 days October in 1993, disclosed in its Figure of description, the shell of bicycle speed-varying unit and retainer ring are integrated, owing to retainer ring is complicated with the structure of the shell of bicycle speed-varying unit, if both adopt the words of integrated forming method, the manufacturing process that can make product is more complicated, and production difficulty is bigger, and production cost is higher.

The third annexation, if China Patent No. CN97109985.5 is in the shifting apparatus of bicycle a kind of disclosed in 1 day January in 2003, disclosed in its Figure of description, the gripper shoe of bicycle speed-varying unit and retainer ring are integrated, its gripper shoe is other parts for installing in bicycle speed-varying unit, owing to retainer ring is complicated with the structure of the gripper shoe of bicycle speed-varying unit, if both adopt the words of integrated forming method, the manufacturing process that can make product is more complicated, production difficulty is bigger, and production cost is higher. In sum, it is badly in need of that a kind of rational in infrastructure, manufacturing process is simple in the market, produces easily and the fixing device of bicycle that bulk strength is high.

Utility model content

The purpose of this utility model is in that to provide that a kind of simple and reasonable for structure, manufacturing process is simple, produce easily and the fixing device of bicycle speed-varying unit that bulk strength is high.

The purpose of this utility model is achieved in that

A kind of fixing device of bicycle speed-varying unit, including the retainer ring with opening and gripper shoe, it is characterized in that: described retainer ring is fixing with gripper shoe to be connected, the overall diameter B of described retainer ring is 20mm 30mm, the width A of described retainer ring is 9mm 15mm, and the thickness C of described retainer ring is 1.5mm 4mm.

The purpose of this utility model can also adopt techniques below measure to solve:

Described retainer ring and gripper shoe riveted joint.

Described retainer ring is connected by the first bolt and gripper shoe are fixing.

First end of the opening part of described retainer ring and the second end are respectively equipped with the first through hole and the second through hole, described gripper shoe is positioned at the second end of retainer ring, described first through hole and the second through hole are coaxially disposed, described gripper shoe is provided with the first screw, and described first screw bolt passes the first through hole, the second through hole are also spirally connected with the first screw in gripper shoe. When user tightens the first bolt, second end of described gripper shoe compressing retainer ring moves towards the first end, so that the two ends locking bicycle handle bar of retainer ring, retainer ring is made to be fixed on handlebar, first bolt is also spirally connected with gripper shoe simultaneously, thus realizing being fixed on handlebar by bicycle speed-varying unit, operation is very simple, convenient. On the contrary, user can discharge the two ends of retainer ring by unscrewing the first bolt, thus realizing bicycle speed-varying unit dismounting, dismounts very convenient.

Described second through hole is screw, and when user tightens the first bolt, the second end of retainer ring moves towards the first end, is also by the first bolt-locking between the two ends of retainer ring, so that retainer ring is fixing more firm.

Second end of described retainer ring extends supporting station outward, and described gripper shoe correspondence supporting station is bent with connecting plate, and described connecting plate is L-shape with gripper shoe to be connected, and described first screw is located on connecting plate, and described gripper shoe is seated on supporting station.

Described gripper shoe is connected by the second bolt with supporting station, and described connecting plate is resisted against on retainer ring the second end, so that gripper shoe is more firm with the connection of retainer ring.

On the lateral wall of described retainer ring the second end, corresponding connecting plate is provided with accommodation recess, and described connecting plate is positioned at accommodation recess, and the top of connecting plate and the roof holding recess offset or close. By the connections above relation it can be seen that gripper shoe and respective 6 degree of freedom of retainer ring are limited all completely, it is impossible to loose again, so that gripper shoe is more firm with the connection of retainer ring, keep between the two being relatively fixed, it is not easy to loosen.

The head of corresponding first bolt of described first through hole is provided with holding tank, in case the head of the first bolt exposes incised wound user.

The beneficial effects of the utility model are as follows:

(1) retainer ring of the present utility model and gripper shoe are two independent parts, therefore, retainer ring of the present utility model and gripper shoe can distinguish molding, so that the intensity of retainer ring and gripper shoe is all greatly improved, simplify manufacturing process, reduce production difficulty and production cost, they being fixed together again through the method being spirally connected or rivet after molding is also secured in bicycle handle bar, simple to operation and retainer ring and gripper shoe are connected firmly, thus meeting the high intensity requirement of bicycle speed-varying unit.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of another angle of Fig. 1.

Fig. 3 is the top view of Fig. 1.

Fig. 4 is the side view of Fig. 1.

Fig. 5 is the decomposition texture schematic diagram of Fig. 1.

Detailed description of the invention

Below in conjunction with drawings and Examples, this utility model is further described.

Embodiment one, referring to shown in Fig. 1 to Fig. 5, a kind of fixing device of bicycle speed-varying unit, including the retainer ring 2 with opening and gripper shoe 1, described retainer ring 2 is fixing with gripper shoe 1 to be connected, the overall diameter B of described retainer ring 2 is 20mm 30mm, and the width A of described retainer ring 2 is 9mm 15mm, and the thickness C of described retainer ring 2 is 1.5mm 4mm.

As this utility model technical scheme more specifically.

The diameter B of described retainer ring 2 is preferably 27mm, and the width A of retainer ring 2 is preferably 12mm, and the thickness C of retainer ring 2 is preferably 2.5mm.

Described retainer ring 2 is connected by the first bolt 3 is fixing with gripper shoe 1. Certain described retainer ring 2 and gripper shoe 1 can also adopt the connected mode of riveted joint.

First end 21 of the opening part of described retainer ring 2 and the second end 22 are respectively equipped with the first through hole 27 and the second through hole 29, described gripper shoe 1 is positioned at the second end 22 of retainer ring 2, described first through hole 27 and the second through hole 29 are coaxially disposed, described gripper shoe 1 is provided with the first screw 25, and described first bolt 3 sequentially passes through first through hole the 27, second through hole 29 and is spirally connected with the first screw 25 in gripper shoe 1.

Second end 22 of described retainer ring 2 extends supporting station 24 outward, the corresponding supporting station 24 of described gripper shoe 1 is bent with connecting plate 11, described connecting plate 11 is L-shape with gripper shoe 1 to be connected, and described first screw 25 is located on connecting plate 11, and described gripper shoe 1 is seated on supporting station 24.

Described gripper shoe 1 is connected by the second bolt 4 with supporting station 24, and described connecting plate 12 is resisted against the second end 22 of retainer ring, so that gripper shoe is more firm with the connection of retainer ring.

The lateral wall correspondence connecting plate of the second end of described retainer ring 2 is provided with accommodation recess 241, and described connecting plate 12 is positioned at accommodation recess 241, and the top of connecting plate and the roof holding recess 241 offset or close.

Described first bolt 3 is hexagon socket head cap screw, and the head of corresponding first bolt 3 of described first through hole 27 is provided with holding tank 28.

Claims (9)

1. the fixing device of a bicycle speed-varying unit, including the retainer ring with opening and gripper shoe, it is characterized in that: described retainer ring is fixing with gripper shoe to be connected, the overall diameter B of described retainer ring is 20mm 30mm, the width A of described retainer ring is 9mm 15mm, and the thickness C of described retainer ring is 1.5mm 4mm.

2. the fixing device of bicycle speed-varying unit according to claim 1, it is characterised in that: described retainer ring and gripper shoe riveted joint.

3. the fixing device of bicycle speed-varying unit according to claim 1, it is characterised in that: described retainer ring is fixed with gripper shoe by the first bolt and is connected.

4. the fixing device of bicycle speed-varying unit according to claim 3, it is characterized in that: the first end of the opening part of described retainer ring and the second end are respectively equipped with the first through hole and the second through hole, described gripper shoe is positioned at the second end of retainer ring, described first through hole and the second through hole are coaxially disposed, described gripper shoe is provided with the first screw, and described first screw bolt passes the first through hole, the second through hole are also spirally connected with the first screw in gripper shoe.

5. the fixing device of bicycle speed-varying unit according to claim 4, it is characterised in that: described second through hole is screw.

6. the fixing device of bicycle speed-varying unit according to claim 4, it is characterized in that: the second end of described retainer ring extends supporting station outward, described gripper shoe correspondence supporting station is bent with connecting plate, described connecting plate is L-shape with gripper shoe to be connected, described first screw is located on connecting plate, and described gripper shoe is seated on supporting station.

7. the fixing device of bicycle speed-varying unit according to claim 6, it is characterised in that: described gripper shoe is connected by the second bolt with supporting station, and described connecting plate is resisted against on retainer ring the second end.

8. the fixing device of bicycle speed-varying unit according to claim 7, it is characterized in that: on the lateral wall of described retainer ring the second end, corresponding connecting plate is provided with accommodation recess, described connecting plate is positioned at accommodation recess, and the top of connecting plate and the roof holding recess offset or close.

9. the fixing device of bicycle speed-varying unit according to claim 1, it is characterised in that: the head of corresponding first bolt of described first through hole is provided with holding tank.