CN116873095A - Speed-changing rotary handle with labor-saving mechanism - Google Patents
Speed-changing rotary handle with labor-saving mechanism Download PDFInfo
- Publication number
- CN116873095A CN116873095A CN202311068196.3A CN202311068196A CN116873095A CN 116873095 A CN116873095 A CN 116873095A CN 202311068196 A CN202311068196 A CN 202311068196A CN 116873095 A CN116873095 A CN 116873095A
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- CN
- China
- Prior art keywords
- brake cable
- seat frame
- handle
- rotary handle
- saving mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 230000008859 change Effects 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
- B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
- B62K23/04—Twist grips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/026—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever actuation by a turning handle or handlebar
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Flexible Shafts (AREA)
Abstract
The invention is suitable for the technical field of bicycles, and provides a speed-changing rotating handle with a labor-saving mechanism, which comprises a handlebar, wherein a seat frame is fixedly arranged on the inner side of the handlebar, a brake cable hanging ring for driving a brake cable to move is rotatably arranged on the seat frame, a rotating handle is rotatably arranged on the outer side of the handlebar, the rotating handle is in transmission connection with the brake cable hanging ring, and when the rotating handle is rotated, the brake cable hanging ring pulls the brake cable to do reciprocating linear motion, so that a derailleur is pulled to change speed by the brake cable; the brake cable rolling support device further comprises a support assembly, wherein the support assembly is mounted on the seat frame and used for rolling and supporting the brake cable when the brake cable is tensioned. According to the invention, a labor-saving mechanism (namely a supporting component) is added on the basis of the existing rotating handle, so that the sliding friction between the brake cable and the seat frame is changed into rolling friction, the friction force between the brake cable and the seat frame is reduced, the situation that a user can rotate the rotating handle only by a large moment when the speed is changed is avoided, and the use experience of the user is improved.
Description
Technical Field
The invention belongs to the technical field of bicycles, and particularly relates to a speed-changing rotary handle with a labor-saving mechanism.
Background
In a bicycle shifting system, a shift knob is a common shifting device in shifting a bicycle. The speed-changing rotary handle is a device which can drive the steel wire to pull the derailleur by manual rotation of the rotary handle so as to realize the speed change of the bicycle, and is very popular in a speed-changing system of the bicycle and has a large market.
The existing bicycle speed-changing rotating handle is generally in sliding friction between a brake cable and a rotating handle seat frame, a user needs a large moment to rotate the rotating handle when in speed change, and the use experience is poor. Therefore, in view of the above situation, there is an urgent need to develop a gear shifting handle with a labor-saving mechanism to overcome the shortcomings in the current practical application.
Disclosure of Invention
The embodiment of the invention aims to provide a speed-changing rotating handle with a labor-saving mechanism, and aims to solve the problems that the existing speed-changing rotating handle of a bicycle is generally in sliding friction between a brake cable and a rotating handle seat frame, a user needs a large moment to rotate the rotating handle during speed changing, and the use experience is poor.
The embodiment of the invention is realized in such a way that the speed change rotating handle with the labor-saving mechanism comprises a handle, wherein a seat frame is fixedly arranged on the inner side of the handle, a brake cable hanging ring for driving a brake cable to move is rotatably arranged on the seat frame, a rotating handle is rotatably arranged on the outer side of the handle, the rotating handle is in transmission connection with the brake cable hanging ring, and when the rotating handle is rotated, the brake cable hanging ring pulls the brake cable to do reciprocating linear motion, so that the derailleur is pulled to change speed by the brake cable; the brake cable tensioning device further comprises a support assembly, wherein the support assembly is mounted on the seat frame and is used for carrying out rolling support on the brake cable when the brake cable is tensioned.
According to a further technical scheme, a handle sleeve is sleeved on the rotary handle.
According to a further technical scheme, one end of the rotary handle, which is close to the seat frame, is fixed with a rotary handle attaching buckle, and one side of the brake cable hanging ring, which is close to the rotary handle, is fixed with a brake cable buckling groove which is matched and connected with the rotary handle attaching buckle.
According to a further technical scheme, a brake cable head is arranged at one end, far away from the derailleur, of the brake cable, and the brake cable head is buckled on a brake cable hanging ring.
Further technical scheme, the supporting component includes roller and roller screw, the roller is installed in the seat frame, just roller and seat frame clearance fit, and the roller can freely rotate in the seat frame, the roller screw is connected with the seat frame, and the roller screw is used for spacing to the roller anticreep.
According to a further technical scheme, the roller adopts a cylindrical structure or adopts a cylindrical structure with an arc-shaped concave middle part.
According to the speed-changing rotating handle with the labor-saving mechanism, the labor-saving mechanism (namely the supporting component) is added on the basis of the existing rotating handle, sliding friction between the brake cable and the seat frame is changed into rolling friction, friction force between the brake cable and the seat frame is reduced, the situation that a user needs a large moment to rotate the rotating handle in speed changing is avoided, and the user experience is improved.
Drawings
FIG. 1 is a schematic diagram of an exploded construction of a shift knob with a labor-saving mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of another view angle structure of FIG. 1;
FIG. 3 is a schematic view of the overall structure of a shift knob with a labor-saving mechanism according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the front cross-sectional structure of fig. 3.
In the figure: 1-seat frame, 2-roller, 3-roller screw, 4-brake cable, 4 a-brake cable head, 5-brake cable hanging ring, 5 a-brake cable buckle slot, 6-rotation handle, 6 a-rotation handle attaching buckle and 7-handle sleeve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
1-4, a speed-changing rotary handle with a labor-saving mechanism provided by an embodiment of the invention comprises a handle, wherein a seat frame 1 is fixedly arranged on the inner side of the handle, a brake cable hanging ring 5 for driving a brake cable 4 to move is rotatably arranged on the inner side of the seat frame 1, a rotary handle 6 is rotatably arranged on the outer side of the handle, the rotary handle 6 is in transmission connection with the brake cable hanging ring 5, and when the rotary handle 6 is rotated, the brake cable hanging ring 5 pulls the brake cable 4 to do reciprocating linear motion, so that a derailleur is pulled to change speed by the brake cable 4; also included is a support assembly mounted on the seat frame 1 for rolling support of the brake cable 4 when it is tensioned.
It should be noted that a derailleur is a component of a bicycle that works with a shift knob to enable a rider to quickly and accurately change the gear ratio of the bicycle, thereby changing the speed of the bicycle and the ability to climb steep roads. The derailleur is typically located on a crankset of a rear wheel of a bicycle and is coupled to pedals and the derailleur of a front wheel by a chain. When the rider turns the shift knob, the derailleur moves accordingly, changing the position of the chain and thus the gear ratio. The derailleur has different types and specifications, and is suitable for different types of bicycles and different riding requirements. This section is not limited and described in detail as prior art.
As shown in fig. 1-2, as a preferred embodiment of the present invention, the handle sleeve 7 is sleeved on the rotary handle 6, so as to improve the comfort level of operation.
The one end of the rotary handle 6 near the seat frame 1 is fixed with a rotary handle attaching buckle 6a, one side of the brake cable hanging ring 5 near the rotary handle 6 is fixed with a brake cable buckling groove 5a which is matched and connected with the rotary handle attaching buckle 6a, the rotary handle 6 is provided with a bulge part which is inserted into the concave part brake cable buckling groove 5a in the brake cable hanging ring 5, so that the rotary handle 6 drives the brake cable hanging ring 5 to rotate together when rotating.
One end of the brake cable 4 far away from the derailleur is provided with a brake cable head 4a, and the brake cable head 4a is buckled on the brake cable hanging coil 5, so that the brake cable hanging coil 5 drives the brake cable 4 to move.
As shown in fig. 1-4, as a preferred embodiment of the present invention, the support assembly comprises a roller 2 and a roller screw 3, wherein the roller 2 is installed in a seat frame 1, the roller 2 and the seat frame 1 are in clearance fit, the roller 2 can freely rotate in the seat frame 1, the roller screw 3 is connected with the seat frame 1, the roller screw 3 is used for limiting the falling-off of the roller 2, the roller is installed in the seat frame 1, the roller 2 and the seat frame 1 are in clearance fit, the roller 2 can rotate in the seat frame 1, the roller screw 3 is connected with the seat frame 1 through threads, and the roller 2 is prevented from falling out, so that the reliability is high.
Preferably, the roller 2 adopts a cylindrical structure or adopts a cylindrical structure with an arc-shaped concave middle part, so that the supporting and guiding effect on the brake cable 4 is improved.
The embodiment of the invention provides a speed-changing rotating handle with a labor-saving mechanism, and the working principle is as follows:
firstly, a user rotates the handle sleeve 7 by hand, the handle sleeve 7 drives the rotating handle 6 to rotate, the rotating handle 6 is provided with a protruding part rotating handle auxiliary buckle 6a, and the protruding part is inserted into a concave part brake wire buckle groove 5a in the brake wire hanging ring 5, so that when the rotating handle 6 rotates, the brake wire hanging ring 5 is driven to rotate together, and the brake wire 4 is provided with a brake wire head 4a and buckled on the brake wire hanging ring 5, so that the brake wire hanging ring 5 can pull the brake wire 4 to do reciprocating linear motion when rotating, and the speed change of the derailleur by pulling the brake wire 4 is realized.
Secondly, two parts of rollers 2 and roller screws 3 are added on the basis of the existing rotating handle, the rollers 2 are arranged in a seat frame 1, the rollers 2 and the seat frame 1 are in clearance fit, the rollers 2 can rotate in the seat frame 1, and the roller screws 3 are connected with the seat frame 1 through threads to prevent the rollers 2 from falling out; because of the existence of the roller 2, the brake cable 4 is contacted with the roller 2, when the speed is changed, the rotating handle sleeve 7 is rotated, the brake cable 4 is pulled, under the condition that the derailleur applies force, the brake cable 4 is tensioned and reciprocates, at the moment, the roller 2 rotates under the action of friction force of the brake cable 4, so that the sliding friction of the brake cable 4 and the seat frame 1 is changed into the rolling friction of the brake cable 4 and the roller 2, and the aim of reducing the friction force of the brake cable 4 is fulfilled.
In summary, the invention adds a labor-saving mechanism (i.e. a supporting component) on the basis of the existing rotating handle, changes the sliding friction of the brake cable 4 and the seat frame 1 into rolling friction, reduces the friction force of the brake cable 4 and the seat frame 1, avoids that a user can rotate the rotating handle only by a large moment when shifting, and improves the use experience of the user.
In addition, the model, size, material, etc. of each component are not particularly limited, and can be flexibly set in practical application.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The speed-changing rotary handle with the labor-saving mechanism comprises a handle and is characterized in that a seat frame is fixedly arranged on the inner side of the handle, and a brake cable hanging ring for driving a brake cable to move is rotatably arranged in the seat frame;
a rotary handle is rotatably arranged on the outer side of the handle, and is in transmission connection with the brake cable hanging ring; when the rotating handle is rotated, the brake cable hanging ring pulls the brake cable to do reciprocating linear motion, so that the derailleur is pulled to change speed by the brake cable;
the brake cable tensioning device further comprises a support assembly, wherein the support assembly is mounted on the seat frame and is used for carrying out rolling support on the brake cable when the brake cable is tensioned.
2. The speed change rotary handle with labor saving mechanism as claimed in claim 1, wherein the rotary handle is sleeved with a handle sleeve.
3. The speed change rotary handle with labor saving mechanism according to claim 1, wherein one end of the rotary handle close to the seat frame is fixed with a rotary handle attaching buckle;
and a brake cable buckling groove which is matched and connected with the rotary handle auxiliary buckle is fixed on one side of the brake cable hanging ring, which is close to the rotary handle.
4. A gear change knob with a power saving mechanism according to claim 3, wherein the end of the brake cable remote from the derailleur is provided with a brake cable head, and the brake cable head is fastened to the brake cable hanger.
5. The shift knob with a power saving mechanism according to any one of claims 1-4, wherein said support assembly comprises a roller and a roller screw;
the rollers are arranged in the seat frame and are in clearance fit with the seat frame, and the rollers can freely rotate in the seat frame;
the roller screw is connected with the seat frame and is used for limiting the roller in a falling-preventing way.
6. The speed change handlebar with a labor saving mechanism according to claim 5, wherein the rollers are of a cylindrical structure or of a cylindrical structure with a concave arc-shaped middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311068196.3A CN116873095A (en) | 2023-08-17 | 2023-08-17 | Speed-changing rotary handle with labor-saving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311068196.3A CN116873095A (en) | 2023-08-17 | 2023-08-17 | Speed-changing rotary handle with labor-saving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116873095A true CN116873095A (en) | 2023-10-13 |
Family
ID=88266555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311068196.3A Withdrawn CN116873095A (en) | 2023-08-17 | 2023-08-17 | Speed-changing rotary handle with labor-saving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116873095A (en) |
-
2023
- 2023-08-17 CN CN202311068196.3A patent/CN116873095A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20231013 |
|
| WW01 | Invention patent application withdrawn after publication |