CN220974463U - Speed variator for bicycle - Google Patents
Speed variator for bicycle Download PDFInfo
- Publication number
- CN220974463U CN220974463U CN202322531454.9U CN202322531454U CN220974463U CN 220974463 U CN220974463 U CN 220974463U CN 202322531454 U CN202322531454 U CN 202322531454U CN 220974463 U CN220974463 U CN 220974463U
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- bracket
- positioning
- device body
- hole
- fixing
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model provides a bicycle speed changing device, which comprises a device body, a bracket and a fixing bolt. The device body is provided with a first positioning convex part and a second positioning convex part which are arranged at intervals, the first positioning convex part is provided with a first screw hole, and the second positioning convex part is provided with a second screw hole; the bracket is provided with a fixing perforation, the bracket can be arranged at a first position or a second position of the device body, when the bracket is arranged at the first position, the first positioning convex part is embedded and clamped in the fixing perforation, and when the bracket is arranged at the second position, the second positioning convex part is embedded and clamped in the fixing perforation; the fixing bolt penetrates through the fixing perforation of the bracket and is locked in the first screw hole or the second screw hole, so that the bracket is fixed at the first position or the second position of the device body. Therefore, the device body can be adjusted to a position suitable for the hand operation of a user relative to the bracket.
Description
Technical Field
The present application relates to bicycle speed variator, and is especially one kind of bicycle speed variator capable of being adjusted via the hand of the user.
Background
The prior bicycle speed-changing device is provided with a bracket arranged on a bicycle handle and a device body fixedly connected with the bracket, and a user can loosen or tighten a speed-changing wire connected with a speed changer through a deflector rod of the device body, so that the speed changer drives a chain to be switched to fluted discs with different sizes, thereby the bicycle can achieve the speed-changing effect.
When the user dials the shift lever, the position of the dial lever is different because the hand of each user is different, however, the bracket and the device body can not be adjusted relatively, so the user can only change the hand position to match the installation position of the device body, and the user is inconvenient to operate. Accordingly, there is still room for improvement in the structure of the existing bicycle shifting devices.
Disclosure of utility model
Accordingly, a primary object of the present application is to provide a bicycle shifting device that can be adjusted to a position suitable for hand operation in response to a user's needs.
In order to achieve the above-mentioned main object, the bicycle shifting device of the present application comprises a device body, a bracket and a fixing bolt. The device body is provided with a first positioning convex part and a second positioning convex part which are arranged at intervals, the first positioning convex part is provided with a first screw hole, and the second positioning convex part is provided with a second screw hole; the bracket is provided with a mounting part, the mounting part is provided with a fixing through hole, and the bracket can be arranged at a first position or a second position of the device body; when the bracket is arranged at the first position, the first positioning convex part is embedded and clamped in the fixing perforation, and when the bracket is arranged at the second position, the second positioning convex part is embedded and clamped in the fixing perforation; the fixing bolt passes through the fixing hole of the bracket and is locked in the first screw hole or the second screw hole, so that the bracket is fixed at the first position or the second position of the device body.
Through the technical characteristics, the bicycle speed changing device of the application ensures that the device body can be adjusted to a position suitable for the hand operation of a user according to actual requirements by the mutual matching of the fixing through hole of the bracket and the first positioning convex part and the second positioning convex part of the device body, thereby solving the problem that the user needs to change the hand position by himself to match with the prior device body so as to improve the convenience in operation.
Preferably, the mounting portion of the bracket has a first positioning hole located at one side of the fixing hole and a second positioning hole located at the other side of the fixing hole; when the bracket is arranged at the first position, the second positioning convex part is embedded and clamped in the second positioning hole, and when the bracket is arranged at the second position, the first positioning convex part is embedded and clamped in the first positioning hole. Therefore, the second positioning convex part is embedded and clamped in the positioning mode of the second positioning hole or the first positioning convex part is embedded and clamped in the positioning mode of the first positioning hole, so that the bracket can be more stably positioned at the first position or the second position, and the bracket can be prevented from rotating relative to the device body.
Preferably, the first positioning hole and the second positioning hole are blind holes recessed from a bottom surface of the mounting portion toward a top surface of the mounting portion.
Preferably, the first positioning hole and the second positioning hole of the bracket are both non-circular, and the shapes of the first positioning hole and the second positioning hole are consistent with the shapes of the first positioning convex part and the second positioning convex part of the device body. Therefore, the structural design of the first positioning hole and the second positioning hole can prevent the first positioning convex part and the second positioning convex part from rotating relative to the first positioning hole and the second positioning hole, so that the bracket can be positioned on the device body more firmly.
Preferably, the device body has a limiting frame surrounding the first and second positioning protruding parts; the mounting portion of the bracket has a first end and a second end opposite to the first end, when the bracket is mounted at the first position, the first end of the mounting portion is adjacent to one side of the limiting frame, and when the bracket is mounted at the second position, the second end of the mounting portion is adjacent to the other side of the limiting frame. Thus, the limiting frame can limit the movable range of the bracket on the device body.
Preferably, the device body has a bearing step portion, the mounting portion of the bracket has an abutting surface, and when the bracket is mounted at the first position or the second position, the abutting surface abuts against the bearing step portion. Therefore, the bracket can be firmly abutted against the device body through the matching of the abutting surface and the bearing step part.
The detailed construction, features, assembly or use of the bicycle shifting device provided in the present application will be described in the detailed description of the embodiments provided hereinafter. However, those of ordinary skill in the art will appreciate that the detailed description and the specific embodiments that are presented to practice the application are provided by way of illustration only and are not intended to limit the scope of the application as claimed.
Drawings
The bicycle shifting device of the present application will be further described with reference to the following examples, in which:
FIG. 1 is a perspective view of a bicycle shifting device showing a bracket installed in a first position in accordance with a first embodiment of the present application;
FIG. 2 is like FIG. 1 and shows the bracket in a second position;
FIG. 3 is an exploded perspective view of a bicycle shifting device in accordance with a first embodiment of the present application;
FIG. 4 is a perspective view of a bracket provided by a bicycle shifting device in accordance with a first embodiment of the present application from another perspective;
FIG. 5 is the top view of FIG. 1 showing the first end of the bracket abutting one side of the restraining frame;
FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5 showing the first positioning tab of the device body being snapped into the mounting aperture of the bracket;
FIG. 7 is the top view of FIG. 2 showing the second end of the bracket abutting the other side of the restraining frame; and
FIG. 8 is a cross-sectional view taken along section line 8-8 of FIG. 7, showing the second positioning protrusion of the device body being snapped into the fixing aperture of the bracket; and
FIG. 9 is an exploded perspective view of a bicycle shifting device in accordance with a second embodiment of the present application;
Wherein, the reference numerals:
1 speed variator for bicycle
2 Speed variator for bicycle
10 Device body
11 Top cover
12 First positioning convex part
121 First screw hole
13 Second positioning convex part
131 A second screw hole
14 Limiting frame
141 Contact surface
15 Bearing step portion
16 Base
18-Deflector rod
20 Bracket
21-Bundle ring
23 Through hole
24 Gap(s)
26 Mounting portion
27 Against surface
28 Top surface
29 Bottom surface
30 Fixing the perforation
31 First positioning hole
32 Second positioning hole
34 First end portion
35 Second end portion
36 Fixing bolt
40 Device body
42 First positioning convex part
43 Second positioning convex part
50:
51 first positioning hole
52, Second positioning hole
53 Fixing the perforation
P1:first position
P2:second position
S, adjusting a screw.
Detailed Description
In the description, numerous specific details are provided to provide a thorough understanding of particular embodiments of the utility model; however, it will be apparent to one skilled in the art that the present utility model may be practiced without one or more of these specific details; in other instances, well-known details are not shown or described in order to avoid obscuring the utility model. The technical content and detailed description of the present utility model are as follows in conjunction with the drawings:
Referring to fig. 1 to 3, a bicycle shifting device 1 of the present application includes a device body 10, a bracket 20 and a fixing bolt 36.
As shown in fig. 3, the device body 10 has a top cover 11 and a base 16 combined with the top cover 11, the top surface of the top cover 11 has a first positioning protrusion 12 and a second positioning protrusion 13 disposed at intervals, and a limiting frame 14 surrounding the first and second positioning protrusions 12, 13, wherein the first positioning protrusion 12 has a first screw hole 121, the second positioning protrusion 13 has a second screw hole 131, the first and second positioning protrusions 12, 13 are both circular, the limiting frame 14 has a contact surface 141, and the front side of the top cover 11 has a bearing step 15. In addition, the device body 10 further has a shift lever 18 disposed on the bottom surface of the base 16, where the shift lever 18 is used for loosening or tightening a shift line (not shown), so that a transmission (not shown) connected to the shift line can be shifted to different gear positions to achieve the effect of shifting, and the operation principle is not repeated here in detail because how the shift lever 18 controls the transmission to shift the gear positions through the shift line is the prior art and is not the focus of the present invention.
As shown in fig. 3 and 4, the bracket 20 has a collar 21 and a mounting portion 26. The collar 21 has a through hole 23 and a slit 24 extending along a radial direction of the through hole 23, and the slit 24 of the collar 21 is narrowed by an adjusting screw S screwed on the collar 21, so that the collar 21 can be firmly clamped on a bicycle handlebar (not shown). The mounting portion 26 is connected to the collar 21 and forms an abutting surface 27 with the collar 21, the mounting portion 26 further has a top surface 28, a bottom surface 29, a fixing hole 30 penetrating through the top and bottom surfaces 28, 29, a first positioning hole 31 located at one side of the fixing hole 30, and a second positioning hole 32 located at the other side of the fixing hole 30, wherein the first and second positioning holes 31, 32 are blind holes recessed from the bottom surface 29 of the mounting portion 26 toward the top surface 28 of the mounting portion 26, and the first and second positioning holes 31, 32 are circular. In addition, the mounting portion 26 further has a first end 34 and a second end 35 opposite the first end 34.
In actual assembly, the bracket 20 may be disposed at a first position P1 (shown in fig. 1) or a second position P2 (shown in fig. 2) of the device body 10. Further, when the bracket 20 is mounted at the first position P1 as shown in fig. 5 and 6, the device body 10 is engaged with the fixing hole 30 by the first positioning protrusion 12, and simultaneously engaged with the second positioning hole 32 by the second positioning protrusion 13, the bottom surface 29 of the mounting portion 26 abuts against the contact surface 141 of the limiting frame 14, thereby positioning the bracket 20 on the device body 10, and then the bracket 20 is fixed at the first position P1 of the device body 10 by the fixing bolt 36 passing through the fixing hole 30 and locking to the first screw hole 121 of the first positioning protrusion 12. By the positioning manner that the second positioning convex portion 13 is embedded in the second positioning hole 32, the bracket 20 can be more stably positioned at the first position P1, and the bracket 20 can be prevented from rotating relative to the device body 10.
On the other hand, when the bracket 20 is mounted at the second position P2 as shown in fig. 7 and 8, the device body 10 is engaged with the fixing hole 30 by the second positioning protrusion 13, and simultaneously engaged with the first positioning hole 31 by the first positioning protrusion 12, the bottom surface 29 of the mounting portion 26 abuts against the contact surface 141 of the limiting frame 14, thereby positioning the bracket 20 on the device body 10, and then the bracket 20 is fixed at the second position P2 of the device body 10 by passing through the fixing hole 30 by the fixing bolt 36 and locking the second screw hole 131 of the second positioning protrusion 13. By the positioning manner that the first positioning convex portion 12 is embedded in the first positioning hole 31, the bracket 20 can be more stably positioned at the second position P2, and the bracket 20 can be prevented from rotating relative to the device body 10.
It should be noted that, when the bracket 20 is mounted at the first position P1 shown in fig. 5 and 6, the first end 34 of the mounting portion 26 is adjacent to one side of the limiting frame 14, and when the bracket 20 is mounted at the second position P2 shown in fig. 7 and 8, the second end 35 of the mounting portion 26 is adjacent to the other side of the limiting frame 14, so that the limiting frame 14 can limit the movable range of the bracket 20 on the device body 10. Moreover, whether the bracket 20 is mounted at the first position P1 shown in fig. 1 or the second position P2 shown in fig. 2, the abutment surface 27 of the bracket 20 abuts against the abutment step 15 of the device body 10, so that the bracket 20 can be stably abutted against the device body 10 by cooperation of the abutment surface 27 and the abutment step 15.
However, the present application is not limited to the first embodiment, and referring to fig. 9, the bicycle shifting device 2 of the second embodiment of the present application provides another device body 40, and the device body 40 has substantially the same structure as the device body 10 of the first embodiment, except that the device body 40 has a first positioning protrusion 42 and a second positioning protrusion 43 arranged at intervals, and the first and second positioning protrusions 42, 43 are non-circular. In addition, another bracket 50 is further provided in the present embodiment, and the bracket 50 has substantially the same structure as the bracket 20 in the first embodiment, with the main difference that the bracket 50 has a first positioning hole 51, a second positioning hole 52, and a fixing through hole 53 between the first and second positioning holes 51, 52. The first and second positioning holes 51, 52 are non-circular blind holes, the fixing hole 53 is non-circular, and the shapes of the first and second positioning holes 51, 52 and the fixing hole 53 are consistent with the shapes of the first and second positioning protrusions 42, 43 of the device body 40.
In practical use, the device body 40 can be inserted into the fixing hole 53 of the bracket 50 by the first positioning protrusion 42 and simultaneously inserted into the second positioning hole 52 of the bracket 50 by the second positioning protrusion 43, or the device body 40 can be inserted into the fixing hole 53 of the bracket 50 by the second positioning protrusion 43 and simultaneously inserted into the first positioning hole 51 of the bracket 50 by the first positioning protrusion 42, thereby positioning the bracket 50 to the device body 40. Thus, the structural design of the first and second positioning holes 51 and 52 can prevent the first and second positioning protrusions 42 and 43 from rotating relative to the first and second positioning holes 51 and 52, so that the bracket 50 can be more firmly positioned on the device body 40.
In summary, the bicycle transmission device 1, 2 of the present application enables the device body 10, 40 to be adjusted to a suitable position relative to the bracket 20, 50 according to the user's requirement by the fixing holes 30, 53 of the bracket 20, 50 and the first and second positioning protrusions 12, 13, 42, 43 of the device body 10, 40, so that the user's fingers are more convenient when pulling the lever 18, and the problem that the user has to change the hand position to match the existing device body is solved.
The foregoing description of the embodiments of the present application should not be construed as limiting the scope of the application, but rather should be construed according to the appended claims and their equivalents.
Claims (6)
1. A bicycle transmission, comprising:
The device comprises a device body, a first positioning protrusion and a second positioning protrusion, wherein the device body is provided with a first positioning protrusion and a second positioning protrusion which are arranged at intervals, the first positioning protrusion is provided with a first screw hole, and the second positioning protrusion is provided with a second screw hole;
a bracket having a mounting portion with a fixing hole; the bracket can be arranged at a first position or a second position of the device body; wherein, when the bracket is arranged at the first position, the first positioning convex part is embedded and clamped in the fixing perforation, and when the bracket is arranged at the second position, the second positioning convex part is embedded and clamped in the fixing perforation; and
And the fixing bolt passes through the fixing perforation of the bracket and is locked in the first screw hole or the second screw hole, so that the bracket is fixed at the first position or the second position of the device body.
2. The bicycle shifting apparatus of claim 1, wherein the mounting portion of the bracket has a first positioning hole located at one side of the fixing hole and a second positioning hole located at the other side of the fixing hole; when the bracket is arranged at the first position, the second positioning convex part is embedded and clamped in the second positioning hole, and when the bracket is arranged at the second position, the first positioning convex part is embedded and clamped in the first positioning hole.
3. The bicycle shifting device according to claim 2, wherein the first positioning hole and the second positioning hole are blind holes recessed from a bottom surface of the mounting portion toward a top surface of the mounting portion.
4. The bicycle shifting device according to claim 3, wherein both the first positioning hole and the second positioning hole of the bracket are non-circular, and the shapes of the first and second positioning holes coincide with the shapes of the first and second positioning protrusions of the device body.
5. The bicycle shifting device according to claim 1, wherein said device body has a restraining frame surrounding said first and second positioning projections; the mounting part of the bracket is provided with a first end part and a second end part opposite to the first end part, when the bracket is mounted at the first position, the first end part of the mounting part is adjacent to one side of the limiting frame, and when the bracket is mounted at the second position, the second end part of the mounting part is adjacent to the other side of the limiting frame.
6. The bicycle shifting device according to claim 1, wherein the device body has a bearing step portion, and the mounting portion of the bracket further has an abutment surface that abuts against the bearing step portion when the bracket is mounted in the first position or the second position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322531454.9U CN220974463U (en) | 2023-09-18 | 2023-09-18 | Speed variator for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322531454.9U CN220974463U (en) | 2023-09-18 | 2023-09-18 | Speed variator for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220974463U true CN220974463U (en) | 2024-05-17 |
Family
ID=91063051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322531454.9U Active CN220974463U (en) | 2023-09-18 | 2023-09-18 | Speed variator for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220974463U (en) |
-
2023
- 2023-09-18 CN CN202322531454.9U patent/CN220974463U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |