TWM630975U - Spindle assembly for bicycle - Google Patents

Abstract

The mandrel assembly of the present invention includes a first shaft member, an adjusting tube, a pin member and a positioning member. The first shaft member has a first head and a first body connected to the first head, the first body has a first screw hole and a radial through hole adjacent to the first screw hole, and the adjustment tube can be adjusted. It is sleeved on the first body of the first shaft member in displacement, and the adjusting tube has an elongated hole communicating with the radial through holes and a second screw hole communicating with the first screw hole, and the pin member is inserted into the first shaft member The radially perforated hole is located in the elongated hole of the adjustment tube, and the positioning member is screwed on the second screw hole of the adjustment tube and abuts against the end face of the first body of the first shaft member. In this way, the total length of the mandrel assembly of this creation can be easily adjusted, and in addition to being suitable for frames of different specifications, it can also be installed on a bicycle trainer.

Description

Spindle assembly for bicycles

This creation is related to bicycles, in particular a spindle assembly for bicycles.

The spindle assembly disclosed in WO 2019/233933 includes a first shaft and a second shaft, the first shaft has a recessed portion and a female threaded portion provided in the recessed portion, and the second shaft has an embedded portion and an embedded portion. The male threaded portion of the second shaft is inserted through the recessed portion of the first shaft, and the male threaded portion is screwed to the female threaded portion of the first shaft. The length of the axle assembly can be further adjusted according to actual needs (eg different specifications of the frame).

However, in the aforementioned patent documents, it is difficult to adjust the length of the mandrel assembly at one time only by using the cooperation of the male thread portion and the female thread portion. There is still room for improvement.

The main purpose of the present invention is to provide a spindle assembly for bicycles, which is convenient to adjust the length.

In order to achieve the above-mentioned main purpose, the mandrel assembly of the present invention includes a first shaft member, an adjusting tube, a pin member and a positioning member. The first shaft has a first head and a first body, one end of the first body is connected to the first head, and the other end of the first body has a first body extending along its axial direction a screw hole, the first body further has a radial through hole adjacent to the first screw hole; the adjusting tube is sleeved on the first shaft of the first shaft member so as to be movable along the axial direction of the first shaft member In the body, one end of the adjusting tube has a long hole, the long hole is connected with the radial through hole of the first shaft member, the other end of the adjusting tube has a second screw hole extending along its axial direction, the first The two screw holes are coaxially connected to the first screw hole of the first shaft member; the pin member is inserted into the radial through hole of the first shaft member, and one end of the pin member is located in the elongated hole of the adjustment tube; the positioning The element is screwed to the second screw hole of the adjusting tube and abuts against the end face of the first body of the first shaft element.

It can be seen from the above that the mandrel assembly of this creation utilizes the combination of the pin and the elongated hole, so that the overall length can be quickly adjusted according to actual needs (such as frames of different specifications), and after the adjustment to the required length The positioning member is locked against the end face of the first body portion of the first shaft member, thus completing the positioning.

Preferably, the mandrel assembly further comprises a second shaft member, the second shaft member penetrates through the second screw hole of the adjustment tube and the positioning member and is screwed into the first screw hole of the first shaft member . The left and right rear hooks are assembled by the first shaft member and the second shaft member.

Preferably, the second shaft is a two-piece structure with a sleeve and an inner bolt, the sleeve has a second head, a second body connected to the second head, and a through-hole The second head and the countersunk hole of the second body, the second body of the sleeve is detachably arranged at one end of the adjustment tube, the inner bolt is inserted through the countersunk hole of the sleeve, the adjustment The second screw hole of the pipe and the positioning member are screwed to the first screw hole of the first shaft member. Therefore, the second shaft member is assembled to the first shaft member by the inner bolt, and is assembled to the right rear hook by using the second head of the sleeve.

Preferably, one end of the adjusting tube has an embedding hole adjacent to the second screw hole, the sleeve further has an embedding part for connecting with the second body, and the embedding part of the sleeve can be separated It is embedded in the embedding hole of the adjusting tube so that the two are assembled together.

Preferably, the second shaft member has a one-piece structure, which has a second head, a second body connected to the second head, and a tail connected to the second body, the second shaft The second body is detachably arranged on one end of the adjustment tube, the tail is penetrated through the second screw hole of the adjustment tube and the positioning member, and is screwed into the first screw hole of the first shaft member. Therefore, the second shaft member is assembled with the first shaft member by the tail portion, and is assembled with the right rear hook by the second head portion.

Preferably, the first body of the first shaft member has a small diameter section and a large diameter section, the small diameter section has a radial through hole and the second screw hole, and one end of the large diameter section is connected to the first diameter section. In the head, the other end of the large-diameter section is connected to one end of the small-diameter section, so that a shoulder surface is formed between the large-diameter section and the small-diameter section for one end of the adjusting tube to bear. Movement of the adjustment tube is limited by the shoulder surface.

Preferably, the positioning member is a set screw, and the positioning member is rotated by using a hand tool (such as a wrench) to make the positioning member abut against the end face of the first body of the first shaft member to complete the Positioning of the first shaft member.

The detailed construction, features, assembly or usage of the spindle assembly for bicycles provided by the present creation will be described in the detailed description of the following embodiments. However, those with ordinary knowledge in the field of creation should be able to understand that these detailed descriptions and the specific embodiments listed for implementing the creation are only used to illustrate the creation, not to limit the scope of the patent application of the creation.

The applicant first explains that in the entire specification, including the embodiments described below and the claims of the scope of the patent application, the terms related to the directionality are based on the directions in the drawings. Next, in the embodiments and drawings to be introduced below, the same element numbers represent the same or similar elements or their structural features.

Please refer to FIGS. 1 and 2 first. The spindle assembly 10 of the first embodiment of the present invention includes a first shaft member 20 , an adjustment tube 30 , a pin member 40 , a positioning member 42 , and a second shaft member 50 .

The first shaft member 20 has a first head 21 and a first body 22, the first body 22 has a small diameter section 23 and a large diameter section 24, and one end of the small diameter section 23 has a first axis along the first axis. The other end of the small diameter section 23 is connected to the first head 21 , so that a shoulder surface 27 is formed between the large diameter section 24 and the small diameter section 23 . In addition, the small diameter section 23 has a radial through hole 26 near the middle, and the radial through hole 26 is adjacent to the end of the first screw hole 25 (as shown in FIG. 3 ).

The adjusting tube 30 is sleeved on the small diameter section 23 of the first body 22 of the first shaft member 20 and can move relative to the first shaft member 20 along the axial direction of the first shaft member 20 . One end of the adjustment tube 30 has an elongated hole 31, the elongated hole 31 communicates with the radial through hole 26 of the first shaft member 20, and the other end of the adjustment tube 30 has a second screw hole 32 extending along its own axial direction and a Adjacent to the insertion hole 33 of the second screw hole 32 , the second screw hole 32 is coaxially communicated with the first screw hole 25 of the first shaft member 20 (as shown in FIG. 3 ).

The pin member 40 is inserted into the radial hole 26 of the first shaft member 20 through the elongated hole 31 of the adjustment tube 30 , and one end of the pin member 40 is located in the elongated hole 31 of the adjustment tube 30 .

The positioning member 42 is a set screw in this embodiment, but it is not limited to this. The positioning member 42 is screwed to the second screw hole 32 of the adjustment tube 30 and abuts against the end surface of the first body 22 of the first shaft member 20 (as shown in FIG. 3 ), so as to provide positioning for the first shaft member 20 Effect.

The second shaft member 50 is a two-piece structure in this embodiment. As shown in FIG. 2 , the second shaft member 50 has a sleeve 60 and an inner bolt 70 . The sleeve 60 has a second head 61 , a second body 62 connected to the second head 61 and a second body 62 connected to the first head 61 . The embedded part 63 of the two body parts 62 , the second head part 61 , the second body part 62 and the embedded part 63 are jointly penetrated by a countersunk hole 64 ; the inner bolt 70 is passed through the countersunk hole 64 of the sleeve 60 , and the inner bolt 70 has a threaded section 72 protruding outside the sleeve 60 .

When assembling to the frame, the sleeve 60 and the inner bolt 70 are first assembled on a right rear hook 14, and then the first shaft member 20 and the adjusting tube 30 are assembled on a left rear hook 12 and inserted into a left rear hook 12. The hub 16 and a flywheel seat 18 adjacent to the hub 16 are then allowed to pass the threaded section 72 of the inner bolt 70 through the second screw hole 32 of the adjustment tube 30 and the positioning member 42, and allow the engaging portion 63 of the sleeve 60 to pass through. Embed into the fitting hole 33 of the adjusting tube 30, and then apply force against the first head 21 of the first shaft member 20 to keep it still, and use a hand tool (such as a hexagon wrench) to turn the inner bolt 70 so that the inner bolt 70 The threaded segment 72 is screwed into the first screw hole 25 of the first shaft member 20 , so that the locking of the first shaft member 20 and the second shaft member 50 is completed.

Referring to FIG. 4 , to shorten the total length of the spindle assembly 10 , first loosen the inner bolt 70 to separate the first shaft member 20 and the second shaft member 50 , and then rotate the positioning member 42 to keep it away from the first shaft member 20, then push the adjusting tube 30 inward until one end of the adjusting tube 30 abuts against the shoulder surface 27, the pin 40 at this time is located at the right end of the elongated hole 31, and then rotate the positioning member 42 to make it abut against the shoulder surface 27. The first shaft member 20 is positioned to locate the first shaft member 20 , and finally the inner bolt 70 is re-locked to the first shaft member 20 , thus completing the reduction of the total length.

On the contrary, referring to FIG. 5, to increase the total length of the mandrel assembly 10, first loosen the inner bolt 70 to separate the first shaft member 20 from the second shaft member 50, and then rotate the positioning member 42 away from the first shaft member 42. A shaft member 20 , then pull the adjusting tube 30 outward until the pin member 40 abuts against the left end of the elongated hole 31 , and then rotate the positioning member 42 to make it abut against the first shaft member 20 to position the first shaft member 20 , and finally lock the inner bolt 70 on the first shaft member 20 again, thus completing the increase of the total length.

On the other hand, the structure of the second shaft member can be varied in various ways. The second shaft member 80 provided by the mandrel assembly 10 ′ according to the second embodiment of the present invention has a one-piece structure. Further, as shown in FIGS. 6 to 8 , the second shaft member 80 has a second head. 81. A second body 82 connected to the second head 81, an embedded part 83 connected to the second body 82 and a tail 84 connected to the embedded part 83, wherein the head 81 has a hexagonal hole 86, In addition, a threaded section 85 is provided at the tail 84 . Thereby, the embedding portion 83 of the second shaft member 80 is embedded in the embedding hole 33 of the adjustment tube 30, and the tail portion 84 of the second shaft member 80 is inserted through the second screw hole 32 of the adjustment tube 30 and the positioning member 42, Use the aforementioned hand tool (such as a hexagonal wrench) to be inserted into the inner hexagonal hole 86 and apply force to rotate the second shaft member 80, so that the second shaft member 80 is screwed to the first screw hole 25 of the first shaft member 20 with the threaded section 85 , so that the assembly with the first shaft member 20 is completed. The manner of assembling the spindle assembly 10' and the left and right rear hooks 12 and 14 in the second embodiment of the present invention is the same as that of the first embodiment, and will not be repeated here.

To sum up, the mandrel assemblies 10 and 10' of the present creation utilize the combination of the pin 40 and the elongated hole 31, so that the overall length can be quickly adjusted according to actual needs (such as mountain bikes or sports car frames with different specifications). In addition, it can also replace the original hub axle installed on the bicycle, and use the first head 21 of the first axle member 20 and the second head 61, 81 of the second axle member 50, 80 to set up the bicycle trainer to increase Ease of use.

10: Spindle assembly 10': Spindle assembly 12: Left rear hook 14: Right rear hook 16: Hub 18: Flywheel seat 20: The first shaft 21: First Head 22: The first body 23: Trail section 24: Large diameter section 25: The first screw hole 26: Radial perforation 27: Shoulder face 30: Adjustment tube 31: long hole 32: Second screw hole 33: Embedded hole 40: Pins 42: Positioning parts 50: Second shaft 60: Sleeve 61: Second Head 62: Second Body 63: Embedding part 64: Countersunk hole 70: inner bolt 72: Threaded segment 80: Second shaft 81: Second Head 82: Second Body 83: Embedding part 84: tail 85: Threaded segment

FIG. 1 is a perspective view of the mandrel assembly according to the first embodiment of the invention. FIG. 2 is an exploded perspective view of the mandrel assembly according to the first embodiment of the invention. Fig. 3 is a partial cross-sectional view of the spindle assembly of the first embodiment of the invention used with the left rear dropout, right rear dropout and the hub. 4 is another cross-sectional view of the mandrel assembly according to the first embodiment of the invention, mainly showing that the length of the mandrel assembly is adjusted to the shortest. Fig. 5 is similar to Fig. 4, mainly showing that the length of the mandrel assembly is adjusted to the longest. FIG. 6 is a perspective view of the mandrel assembly according to the second embodiment of the invention. FIG. 7 is an exploded perspective view of the mandrel assembly according to the second embodiment of the invention. 8 is a cross-sectional view of a mandrel assembly according to a second embodiment of the invention.

20: The first shaft

21: First Head

22: The first body

23: Trail section

24: Large diameter section

25: The first screw hole

26: Radial perforation

27: Shoulder face

30: Adjustment tube

31: long hole

32: Second screw hole

33: Embedded hole

40: Pins

42: Positioning pieces

50: Second shaft

60: Sleeve

61: Second Head

62: Second Body

63: Embedding part

64: Countersunk hole

70: inner bolt

72: Threaded segment

Claims (8)

A spindle assembly for bicycles, comprising: A first shaft member has a first head and a first body, one end of the first body is connected to the first head, and the other end of the first body has a first body extending along its axial direction a screw hole, the first body further has a radial through hole adjacent to the first screw hole; An adjusting tube is sleeved on the first body of the first shaft member so as to be movable along the axial direction of the first shaft member. One end of the adjusting tube is provided with a long hole, and the long hole communicates with the first shaft The radially through hole of the piece, the other end of the adjusting tube has a second screw hole extending along its axial direction, the second screw hole coaxially communicates with the first screw hole of the first shaft piece; A pin is inserted into the radial hole of the first shaft, and one end of the pin is located in the elongated hole of the adjusting tube; and A positioning member is screwed on the second screw hole of the adjusting tube and abuts against the end face of the first body of the first shaft member. The spindle assembly for bicycles as claimed in claim 1, further comprising a second shaft member, the second shaft member passing through the second screw hole of the adjustment tube and the positioning member and screwed to the first shaft The first screw hole of the shaft. The spindle assembly for bicycles as claimed in claim 2, wherein the second shaft member has a sleeve and an inner bolt, the sleeve has a second head, a first connecting to the second head Two body parts and a countersunk hole passing through the second head part and the second body part, the second body part of the sleeve is detachably arranged at one end of the adjusting pipe, and the inner bolt is penetrated through the sleeve The countersunk head hole, the second screw hole of the adjusting tube and the positioning member are screwed to the first screw hole of the first shaft member. The spindle assembly for bicycles as claimed in claim 3, wherein one end of the adjustment tube has an insertion hole adjacent to the second screw hole, and the sleeve further has an insertion hole connected to the second body The connecting part of the sleeve is detachably embedded in the connecting hole of the adjusting tube. The spindle assembly for bicycles as claimed in claim 2, wherein the second axle member has a second head, a second body connected to the second head, and a second body connected to the second body A tail, the second body of the second shaft is detachably arranged at one end of the adjustment tube, the tail penetrates the second screw hole of the adjustment tube and the positioning member, and is screwed on the first shaft first screw hole. The spindle assembly for bicycles as claimed in claim 5, wherein one end of the adjustment tube has an insertion hole adjacent to the second screw hole, and the second shaft further has a connection connected to the second screw hole. The embedded part between the body part and the tail part, and the embedded part of the second shaft part can be detachably embedded in the embedded hole of the adjustment tube. The spindle assembly for a bicycle according to any one of claims 1 to 6, wherein the first body of the first shaft member has a small diameter section and a large diameter section, and the small diameter section has a diameter To the through hole and the second screw hole, one end of the large-diameter section is connected to the first head, and the other end of the large-diameter section is connected to one end of the small-diameter section, so that the large-diameter section and the small-diameter section are formed between a shoulder surface for one end of the adjusting tube to bear. The spindle assembly for bicycles according to claim 1, wherein the positioning member is a set screw.

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