TWI454400B - Quick-release device for use on a bicycle - Google Patents

Description

Bicycle quick release structure

The present invention relates to bicycle components, and more particularly to a bicycle quick release structure.

According to the conventional quick release structure of the bicycle 1, as shown in the first figure, there is mainly a screw 2, two sets of springs 3 placed on the screw 2, and one end screwed to the end of the screw 2 for a spring thereof 3 abutting nut 4, a set of abutting sleeve 5 connected to the screw 3 and abutting another spring 3, a positioning block 6 connected to the urging sleeve 5, and an eccentric hole The locking handle 8 of the locker 8 and the engaging head 9 threaded into the eccentric hole 7 and screwed to the screw 2 are inserted.

However, in the quick release structure 1 of the conventional bicycle, the screw 2 and the engaging head 9 are connected by a thread. However, since the bicycle is often subjected to road surface conditions during riding, vibration is generated. Shaking or other force, so that the screw 2 and the engaging head 9 which are connected by threading are prone to loosening, and the slightest condition will cause loosening of the member connected by the quick-release structure 1, which may lead to serious The member connected by the quick release structure 1 is loosened, and there is a danger that the user falls out on the bicycle.

In addition, although some manufacturers will additionally use an adhesive between the engaging head and the screw to be used as a reinforcing strength in connection strength, this method can only cure the target in terms of structural strength and cannot cure the problem.

In view of the above, an object of the present invention is to provide a quick release structure for a bicycle, which can effectively increase the structural strength to reduce the occurrence of looseness or looseness, thereby improving the safety in use.

Another object of the present invention is to provide a quick release structure for a bicycle which is capable of effectively increasing the structural strength to enhance the life of the bicycle.

Therefore, the present invention provides a quick release structure for a bicycle, which mainly includes: a trigger having an eccentric hole and a movable slot communicating with the eccentric hole; and a positioning post penetrating the trigger In the eccentric hole, the positioning post has a through hole and a snap groove communicating with the through hole, the groove bottom of the snap groove has a first engaging surface; a shaft has a spindle and an integral connection with the spindle a head portion having an outer diameter greater than an outer diameter of the mandrel, the head having a second engaging surface on an end surface adjacent to the mandrel, the mandrel of the shaft being from the positioning post The card slot penetrates and passes through the through hole, so that the head is engaged in the engaging slot, and the second engaging surface abuts on the first engaging surface, and the free end of the spindle The utility model has an externally threaded section; a pressing member has a shaft hole penetrating therethrough for the mandrel of the shaft to penetrate, the pressing member has an arc groove facing the trigger; and the two springs are respectively placed on the sleeve a shaft of the shaft; a nut is screwed onto the threaded section of the shaft.

In order to enable the reviewing committee to have a better understanding and recognition of the features and characteristics of the present invention, the following preferred embodiments are illustrated with the accompanying drawings. As shown in the following figure, the first embodiment of the present invention provides a quick release structure 100 for a bicycle, which mainly includes a trigger 10, a positioning post 20, a shaft 30, and a pressing force. The member 40, the two springs 50 and a nut 60, wherein, in the second to fifth figures, the trigger 10 has an eccentric hole 11 extending through the two sides and a movable slot 12 at one end of the trigger 10. The movable slot 12 is in communication with the eccentric hole 11.

Referring to the second to fifth figures, the positioning post 20 has a cylindrical shape. The positioning post 20 has a through hole 21 on one side and a latching groove 22 communicating with the through hole 21 on the other side. The bottom surface of the groove of the engaging groove 22 is a first engaging surface 221 . The positioning post 20 penetrates into the eccentric hole 11 of the trigger 10 to connect the movable slot 12 with the through hole 21 .

Referring to the second to fifth figures, the shaft 30 has a mandrel 31 and a head 32 integrally connected to one end of the mandrel 31, and the outer diameter of the head 32 is larger than the outer diameter of the mandrel 31. The other end (free end) of the mandrel 31 has an externally threaded portion 311 having a second engaging surface 321 on an end surface adjacent to the mandrel 31. The shaft 30 penetrates from the engaging groove 22 of the penetrating post 20 and passes through the through hole 21 of the positioning post 20 and protrudes out of the movable slot 12 of the trigger 10 The head 32 of the shaft 30 is engaged in the engaging groove 22 of the positioning post 20, and the second engaging surface 321 and the first The engaging faces 221 are engaged with each other to stabilize the connection relationship between the shaft 30 and the positioning post 20.

Referring to the second to fifth figures, the pressing member 40 has a urging sleeve 41 and a positioning block 42. The urging sleeve 41 has a ring tooth surface 411 on one side and a positioning groove on the other side. 412. The axis of the urging sleeve 41 has a first shaft hole 413 extending through the two ends. The positioning block 42 is sleeved in the positioning groove 412 of the urging sleeve 41 and is exposed outside the positioning groove 412. An axial groove 421 is defined on the end surface, the axis of the positioning block 42 has a second shaft hole 422 extending through the two ends, and the second shaft hole 422 is in communication with the first shaft hole 413 to be the first shaft hole Together with the second shaft hole, a shaft hole 43 is formed. The shaft hole 43 of the pressure sleeve 40 is inserted into the mandrel 11 of the shaft 10 such that the arc groove 421 of the positioning block 42 faces the trigger 10 and is used for abutting the trigger 10.

Referring to the second to fifth figures, the springs 50 are respectively placed on the mandrel 31 of the shaft 30.

Referring to the second to fifth figures, the nut 60 is screwed onto the outer threaded portion 311 of the shaft 30 such that the springs 50 are located between the nut 60 and the pressing member 40.

Therefore, the above is the introduction of the components of the bicycle quick release structure 100 of the first preferred embodiment of the present invention and the composition thereof, and then the use characteristics thereof are as follows: Since the head 32 of the shaft 30 is integrally formed with the mandrel 31 in the present invention, and the head 32 is engaged in the positioning post 20, the shaft 30 and the positioning post 20 need not be The screw joint can be firmly combined without the danger of loosening or loosening, which not only can effectively improve the structural strength, but also maintain better safety and enhance the service life.

In addition, in the above embodiment, the first engaging surface 221 of the positioning post 20 and the second engaging surface 321 of the shaft 30 are respectively complementary shapes, such as a convex triangle and a concave triangle. .

Referring to the sixth embodiment and the seventh figure, a bicycle quick release structure 200 is provided in the second preferred embodiment of the present invention. The same as the previous embodiment, the utility model comprises a trigger handle 10, a positioning post 20, and a shaft 30. A pressing member 40, two springs 50 and a nut 60, but the main difference is that in the embodiment, the outer surface of the mandrel 31 of the shaft 30 has two radial ring grooves 312, and the two ring grooves 312 A predetermined distance is provided for the small ring ends 51 of the springs 50 to be engaged by the ring grooves 312 to fix the relationship between the springs 50.

Referring to the eighth embodiment and the ninth embodiment, a quick release structure 300 for a bicycle according to the third preferred embodiment of the present invention includes a trigger 10, a positioning post 20, and an axis. The rod 30, a pressing member 40, two springs 50 and a nut 60, but the main difference is that: in this embodiment, the two ends of the positioning post 20 respectively have a communication to The card is engaged with the screw hole 23 of the slot 22.

The quick release structure 300 of the bicycle further includes two bolts 70 which are respectively screwed from the screw holes 23 of the positioning post 20 and urged at one end thereof against the head 32 of the shaft 30. In order to more stabilize the structural strength between the shaft 30 and other members.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments of the present invention, and all of the related art in the art according to the present invention are equally varied, and should belong to the present invention. The scope of coverage.

"Knowledge"

1‧‧‧ bicycle quick release structure

2‧‧‧ screw

3‧‧‧ Spring

4‧‧‧ Nuts

5‧‧‧force set

6‧‧‧ Positioning block

7‧‧‧Eccentric hole

8‧‧‧Locking handle

9‧‧‧Care Head

"The first preferred embodiment of the present creation"

100‧‧‧ bicycle quick release structure

10‧‧‧ wrench

11‧‧‧Eccentric hole

12‧‧‧ Activity slot

20‧‧‧Positioning column

21‧‧‧Perforation

22‧‧‧ card slot

221‧‧‧ first engagement surface

30‧‧‧ shaft

31‧‧‧ mandrel

311‧‧‧External thread section

32‧‧‧ head

321‧‧‧Second engagement surface

40‧‧‧forced parts

41‧‧‧force set

411‧‧‧ ring tooth surface

412‧‧‧ positioning slot

413‧‧‧First shaft hole

42‧‧‧ Positioning block

421‧‧‧ arc slot

422‧‧‧Second shaft hole

43‧‧‧Axis hole

50‧‧‧ Spring

60‧‧‧ nuts

"Second preferred embodiment of the present creation"

200‧‧‧ bicycle quick release structure

10‧‧‧ wrench

20‧‧‧Positioning column

30‧‧‧ shaft

31‧‧‧ mandrel

312‧‧‧ Ring groove

40‧‧‧forced parts

50‧‧‧ Spring

51‧‧‧Small path end

60‧‧‧ nuts

"The third preferred embodiment of the present creation"

300‧‧‧ bicycle quick release structure

10‧‧‧ wrench

20‧‧‧Positioning column

22‧‧‧ card slot

23‧‧‧ screw holes

30‧‧‧ shaft

32‧‧‧ head

40‧‧‧forced parts

50‧‧‧ Spring

60‧‧‧ nuts

70‧‧‧ bolt

The first figure is a perspective exploded view of a bicycle quick release structure.

The second drawing is an exploded perspective view of the first preferred embodiment of the present invention.

The third figure is a perspective assembled view of the embodiment shown in the second figure.

The fourth drawing is a combined sectional view of the embodiment shown in the third figure.

The fifth drawing is a combined sectional view of the embodiment shown in the third figure.

The sixth drawing is a three-dimensional combination diagram of the second preferred embodiment of the present creation.

Figure 7 is a cross-sectional view of the combination of the embodiment shown in Figure 6.

The eighth figure is an exploded perspective view of a third preferred embodiment of the present creation.

The ninth drawing is an enlarged partial cross-sectional view of the embodiment shown in the eighth embodiment.

100‧‧‧ bicycle quick release structure

10‧‧‧ wrench

11‧‧‧Eccentric hole

12‧‧‧ Activity slot

20‧‧‧Positioning column

21‧‧‧Perforation

22‧‧‧ card slot

30‧‧‧ shaft

31‧‧‧ mandrel

311‧‧‧External thread section

32‧‧‧ head

321‧‧‧Second engagement surface

40‧‧‧forced parts

41‧‧‧force set

411‧‧‧ ring tooth surface

413‧‧‧First shaft hole

42‧‧‧ Positioning block

421‧‧‧ arc slot

422‧‧‧Second shaft hole

43‧‧‧Axis hole

50‧‧‧ Spring

60‧‧‧ nuts

Claims (7)

A quick release structure of a bicycle, comprising: a trigger having an eccentric hole and a movable slot communicating with the eccentric hole; a positioning post penetrating into the eccentric hole of the trigger, the positioning post Having a through hole and a snap groove communicating with the through hole, the groove bottom of the snap groove has a first engaging surface; a shaft having a spindle and a head integrally connected with the spindle, and the head The outer diameter of the portion is larger than the outer diameter of the mandrel, and the head has a second engaging surface on the end surface adjacent to the mandrel, and the mandrel of the shaft penetrates from the engaging groove of the positioning post. The second end of the mandrel is abutted on the first engaging surface, and the free end of the mandrel has an externally threaded section; The pressing member has a shaft hole penetrating therethrough for the mandrel of the shaft to penetrate, the pressing member has an arc groove facing the trigger; and the two springs are respectively sleeved on the spindle of the shaft a nut that is screwed to the externally threaded section. The bicycle quick release structure according to claim 1, wherein the pressing member has a forced sleeve and a positioning block; the forced sleeve has a ring tooth surface on one side and a positioning on the other side The slot has a first shaft hole extending through the two ends, the positioning block is sleeved in the positioning groove of the forcing sleeve, and has the arc on an end surface exposed outside the positioning slot a slot, the axis of the positioning block has a second axis running through the two ends And a second shaft hole communicating with the first shaft hole to form the shaft hole by the first shaft hole and the second shaft hole. The quick release structure of the bicycle according to the first aspect of the invention, wherein the first engaging surface of the positioning post and the second engaging surface of the shaft are respectively complementary shapes. The quick release structure of the bicycle according to the first aspect of the patent application, wherein the first engaging surface of the positioning post is a convex triangle shape, and the second engaging surface of the shaft is a concave triangle shape. The quick release structure of the bicycle according to claim 1, wherein the outer surface of the mandrel of the shaft has two radial ring grooves for engaging the small diameter end of the spring by the ring groove. The quick release structure of the bicycle according to the first aspect of the patent application scope further includes two bolts; the two ends of the positioning post respectively have a screw hole connected to the snap groove, and the two bolts are respectively from the positioning column The screw hole is screwed in and urged at one end thereof against the head of the shaft. The quick release structure of the bicycle according to claim 1 further includes at least one bolt; at least one end of the positioning post has a screw hole connected to the snap groove, the bolt is a screw hole of the positioning post Screw in and push one end against the head of the shaft.