CN203727605U - Speed-change gear-shift mechanism with speed display device - Google Patents
Speed-change gear-shift mechanism with speed display device Download PDFInfo
- Publication number
- CN203727605U CN203727605U CN201420099403.1U CN201420099403U CN203727605U CN 203727605 U CN203727605 U CN 203727605U CN 201420099403 U CN201420099403 U CN 201420099403U CN 203727605 U CN203727605 U CN 203727605U
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- Prior art keywords
- speed display
- speed
- steel wire
- set collar
- display device
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- 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.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000005452 bending Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920002457 flexible plastic Polymers 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model provides a speed-change gear-shift mechanism with a speed display device. The speed-change gear-shift mechanism comprises a fixing ring and a speed display belt. An outer groove and an inner groove which is provided with an upper end face and a lower end face respectively at two ends thereof are formed in the fixing ring. The speed display belt comprises a speed display section, a connector, a connection section and a fixing section. With one end abutting against the lower end face of the inner groove, a spiral spring mounted on the connection section is disposed in the inner groove of the fixing ring; after the speed display belt is arranged in the outer groove, the other end of the spiral spring and the connector are matched with the upper end face of the inner groove in the fixing ring. The connection section passes through an opening of the fixing ring to assemble the fixing section in a steel wire reel. The speed display section is arranged in the outer groove of the fixing ring in a bending manner. According to the speed-change gear-shift mechanism, the structure is simple and reasonable, and parts and installation space of the speed-change gear-shift speed display device are simplified, accordingly production and installation costs are reduced, and installation space and weight of a gearbox are decreased.
Description
[technical field]
The utility model relates to a kind of bicycle gearshift, more specifically, refers to the bicycle shift gearshift of tool speed display device.
[background technology]
Common bicycle gearshift is all with speed display device, patent ZL03140650.5 has disclosed the speed display device of a this class: one at one end side with transmit tooth elasticity show band, engage with the tooth on steel wire rope loop by the transmission tooth of side.In the time that steel wire rope loop rotates, show Tape movement and on the visual window of control stalk socket, demonstrate actual gear thus.The detailed composition that shows this class speed display device in Fig. 4 of its patent specification, except necessary visual window, also needing has the part such as bracket and interior guide groove.Owing to showing that band is the elastic webbing that very thin material is made, can slide in the chute of above-mentioned multiple part compositions along with the rotation of steel wire rope loop swimmingly again simultaneously, therefore make and show that the material requirements of band is very high.Can not be too hard, can not be too soft.Steel wire rope loop simultaneously, visual window, control stalk, free-running fit between bracket and the each part of interior guide groove again must be accurate, and be also very high to the matching requirements between these parts, the going wrong of any one part all can have influence on elasticity and show that band slides smoothly in narrow passage, causes the productive costs of this patented product, assembly cost higher, think that this applicant this patented product is in material cost, the space being all improved in assembly cost.
[utility model content]
The purpose of this utility model is the deficiency that overcomes present technology, provide a kind of structure simpler and reasonable, the gear shift mechanism of what productive costs was lower have speed display device, it simplifies number of parts and the installing space of gear shift speed display device under the prerequisite that does not affect speed-changing mechanism allomeric function, thereby reduce productive costs and cost of installation, and dwindled the installing space of change-speed box and alleviated the weight of change-speed box.
In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposals:
A gear shift mechanism with speed display device, it comprises:
One for gearshift being installed to the set collar on bicycle, it has an outer groove, has configured again outside an inner groovy with upper surface and lower surface in groove; Be furnished with an opening closing on lower surface place;
Ratchet cover plate with multiple sectors and one is for being wound around the steel wire spool of speed change steel wire, the two non-rotatable being installed together of the ratchet cover plate and steel wire spool;
A tensioning driving lever, engages the speed change steel wire for tensioning steel wire spool with the tooth on the ratchet cover plate by ratchet disposed thereon rotationally;
One for unclamping the release driving lever of the speed change steel wire being wrapped on steel wire spool;
A speed display device being assembled together with set collar, it includes Speed display band, coil spring and demonstration eyeglass, and described Speed display band comprises Speed display part, joint, connecting bridge and fixed part; Its one end after being arranged on this coil spring on connecting bridge and being placed in the inner groovy of this set collar is withstood on to the lower surface place of this inner groovy, the other end coordinates with the upper end surface of the inner groovy on set collar after in Speed display band is installed to this outer groove together with this blank area; Described connecting bridge is assemblied in this fixed part in steel wire spool through after the opening of set collar; The bending of described Speed display part is placed in the outer groove of set collar; Described demonstration eyeglass is fastened on outside set collar and with set collar and forms seal cavity.
In to the improvement project of the above-mentioned gear shift mechanism with speed display device, described coil spring is pressure spring.
In to the improvement project of the above-mentioned gear shift mechanism with speed display device, described Speed display band is flexiplast band.
Compared with prior art, the beneficial effects of the utility model are:, 1), it has been saved the tooth on steel wire rope loop and has reduced the height of steel wire rope loop, these two parts of bracket and interior guide groove have been saved simultaneously, provide power to make Speed display band can be returned to swimmingly initial position by a coil spring again, number of parts and the installing space of gear shift speed display device under the prerequisite that does not affect speed-changing mechanism allomeric function, are simplified like this, dwindle the installing space of trasmission shifting system and alleviated its weight, thereby productive costs and cost of installation are reduced, 2), in better embodiment, because Speed display band is flexiplast band, compared with in patent ZL03140650.5 concerning material requirements is very high Speed display band, this can further reduce production costs and matching requirements.
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
[brief description of the drawings]
Fig. 1 is the overall diagram of the utility model embodiment;
Fig. 2 is the assembly drowing of the speed display device of the utility model embodiment;
Fig. 3 is the constructional drawing of the Speed display band of the utility model embodiment;
Fig. 4 is the constructional drawing of the set collar of the utility model embodiment;
Fig. 5 is the constructional drawing of the steel wire spool of the utility model embodiment;
Fig. 6 is the constructional drawing of the demonstration eyeglass of the utility model embodiment.
[detailed description of the invention]
Fig. 1 shows the overall appearance figure of the gear shift mechanism with speed display device that is arranged on the bicycle handle right hand one side; Comprising: adjust nut 1, upper casing 2a, lower casing 2b, set collar 3, speed display device 4, discharges driving lever 5, tensioning driving lever 6 etc.It is symmetrical a pair of being generally arranged on bicycle handle bar gear shift mechanism on hand, but structure is all similarly, and therefore this patent only illustrates as an example of dexter gear shift mechanism example.
Fig. 2 shows the major part of a preferred implementation with speed display device in the mode of assembly drowing.For clearly explain between the each parts of speed display device assembly relation, in Fig. 2, removed the demonstration eyeglass 10 in Fig. 6 and the ratchet cover plate being assembled together with steel wire spool.Ad hoc structure by seeing set collar 3 in Fig. 4: it is fixed on set collar the center ring 36 on handlebar except having, on the fixing beam ring coordinating with handlebar at it, there is groove 31 outside, outer groove 31 has two sides 37 and 38, has configured again outside an inner groovy 33 that opening is smaller in groove 31.Inner groovy 33 has upper surface 32 and lower surface 34, when on the handlebar that fixing beam ring is assemblied in to bicycle, and the top of the 32 lower surface, a upper surface 34 of inner groovy 33.Be furnished with a narrow opening 35 closing on 34 places, lower surface.By the structure that can see Speed display band 7 in Fig. 3, there is Speed display part 71, joint 72, connecting bridge 73 and fixed part 74.By finding out in Fig. 5, for realizing speed display device of the present utility model, steel wire spool 9 has configured one groove 91 and one section of protruding circular arc 92 has been installed.Show that by finding out in Fig. 6 eyeglass 10 has middle groove 101 and two side direction convex tendons 102,103 on both sides.In the time that demonstration eyeglass is installed on set collar, show that two the side direction convex tendons 102,103 on eyeglass coordinate with two sides 37,38 of the outer groove 31 of fixing beam ring, form enclosure space.In Fig. 2, can see, speed index strip 7 is to be installed in the groove 31 of set collar, and the blank area 72 of Speed display band is mounted in fixing beam ring inner groovy 33 and coordinates (, withstanding on upper end surface) with its upper surface 32.The part 74 that is fixed after the narrow openings 35 of the connecting bridge 73 of Speed display band through 34 places, lower surface of fixing beam ring inner groovy 33 is assemblied in the installation groove 91 on steel wire spool 9.In Fig. 2, can find out, a coil spring 8 is assemblied in the inner groovy 33 of fixing beam ring, and the connecting bridge 73 of Speed display band is the central area through coil spring 8, in other words, namely coil spring 8 is to be assemblied on Speed display band after Negotiation speed shows the fixed part 74 of being with.One end of coil spring 8 is assemblied in 34 places, lower surface of inner groovy 33, the other end can coordinate with 32 places, upper surface of the inner groovy 33 on fixing beam ring with together with blank area 72 on Speed display band after Speed display band is in place, wherein the oad of the blank area 72 on Speed display band is greater than the external diameter of coil spring 8, show after eyeglass 10 when installing, coil spring 8 is arranged on the inner groovy 33 on fixing beam ring and shows in the space that eyeglass 10 forms after can being compressed, the oad of wherein fixing inner groovy 33 on beam ring is greater than the outside dimension of coil spring 8, can ensure that like this coil spring 8 slides smoothly in inner groovy 33, in this patent, preferred coil spring 8 is pressure spring.When promoting tensioning driving lever 6, user completes when operation of performing, the tensioning ratchet being arranged on tensioning driving lever 6 engages with the tensioning sector on the ratchet cover plate, then promoting the ratchet cover plate rotates around principal axis bolt, because the ratchet cover plate, steel wire spool are to be mounted to a global facility that can not rotate mutually, therefore in the time that rotating, the ratchet cover plate also drive accordingly steel wire spool to rotate around main shaft thereupon.Thereby the speed change steel wire on steel wire spool 9 is tightened up, reach the function of speed change.Because the stretching device in gear shift mechanism is publicly-owned technology, be apparent for a person skilled in the art, do not do too much description herein.
Simultaneously because the fixed part 74 on Speed display band is also mounted in the groove 91 of steel wire spool, therefore in the time that steel wire spool rotates, also can drive accordingly Speed display band to slide in the enclosure space of fixing beam ring and Speed display eyeglass composition, and the connecting bridge of Speed display band is wound in the cambered surface of circular arc 92 of steel wire spool.At this moment the Speed display part on Speed display band will be left initial position and arrive a corresponding gear, thus the function of arrival rate instruction.Meanwhile, be arranged on coil spring on Speed display band 8 can be along with the motion of Speed display band pressurized simultaneously in the interior slip of inner groovy 33 of fixing beam ring.In the time that user promotes tensioning driving lever and shifts gears maximum tooth, Speed display band also reaches maximum tooth position indicating positions, and the distortion of coil spring 8 is at this moment maximum.
In the time that the release driving lever 5 shown in user's action diagram 1 completes releasing operation, discharge driving lever and drive the ratchet unit coordinating with it, thereby promote positioning teeth on ratchet unit with and the maintenance tooth of the ratchet cover plate that is assembled together of steel wire spool between produce moment disengaging with engage, at this moment steel wire spool is under the effect of retracing spring, produce the action of a reset, thereby the speed change steel wire of tensioning is unclamped to a distance, also just completed the releasing operation of a gear shift.Meanwhile, the Speed display band being wrapped on steel wire spool also produces a release movement thereupon, but because Speed display band itself is one
flexibleplastic tape, cannot promote whole Speed display band and turn back to initial position in the passage of fixing beam ring and demonstration eyeglass composition, but the pressure spring being now arranged on Speed display band is deformation in compression, therefore under the effect of pressure spring restoring force, one end of pressure spring can show that the blank area 72 of band produces a power upwards by driving velocity, thereby makes Speed display band can promptly be returned to initial position.Speed display band adopts flexible plastic material to make, compared with in patent ZL03140650.5 concerning material requirements is very high Speed display band, this can further reduce production costs and matching requirements.
Although reference above embodiment describes the utility model in detail, but it will be apparent to one skilled in the art that by the disclosure, in the case of and do not depart from the principle of the present utility model and spiritual scope that described claim limits, can the utility model be made a variety of changes or be revised.Therefore, the detailed description of disclosure embodiment is only used for explaining, instead of is used for limiting the utility model, but is defined by the subject-matter of the claims the scope of protection.
Claims (3)
1. a gear shift mechanism with speed display device, is characterized in that, comprising:
One for gearshift being installed to the set collar on bicycle, it has an outer groove, has configured again outside an inner groovy with upper surface and lower surface in groove; Be furnished with an opening closing on lower surface place;
Ratchet cover plate with multiple sectors and one is for being wound around the steel wire spool of speed change steel wire, the two non-rotatable being installed together of the ratchet cover plate and steel wire spool;
A tensioning driving lever, engages the speed change steel wire for tensioning steel wire spool with the tooth on the ratchet cover plate by ratchet disposed thereon rotationally;
One for unclamping the release driving lever of the speed change steel wire being wrapped on steel wire spool;
A speed display device being assembled together with set collar, it includes Speed display band, coil spring and demonstration eyeglass, and described Speed display band comprises Speed display part, joint, connecting bridge and fixed part; Its one end after being arranged on this coil spring on connecting bridge and being placed in the inner groovy of this set collar is withstood on to the lower surface place of this inner groovy, the other end coordinates with the upper end surface of the inner groovy on set collar after in Speed display band is installed to this outer groove together with this blank area; Described connecting bridge is assemblied in this fixed part in steel wire spool through after the opening of set collar; The bending of described Speed display part is placed in the outer groove of set collar; Described demonstration eyeglass is fastened on outside set collar and with set collar and forms seal cavity.
2. the gear shift mechanism with speed display device according to claim 1, is characterized in that, described coil spring is pressure spring.
3. the gear shift mechanism with speed display device according to claim 1 and 2, is characterized in that, described Speed display band is flexiplast band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099403.1U CN203727605U (en) | 2014-03-06 | 2014-03-06 | Speed-change gear-shift mechanism with speed display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099403.1U CN203727605U (en) | 2014-03-06 | 2014-03-06 | Speed-change gear-shift mechanism with speed display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727605U true CN203727605U (en) | 2014-07-23 |
Family
ID=51197699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420099403.1U Expired - Lifetime CN203727605U (en) | 2014-03-06 | 2014-03-06 | Speed-change gear-shift mechanism with speed display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984555A (en) * | 2015-02-03 | 2016-10-05 | 禧玛诺（新）私人有限公司 | Operating device |
| TWI632087B (en) * | 2014-07-30 | 2018-08-11 | 島野股份有限公司 | Bicycle shifting control apparatus |
-
2014
- 2014-03-06 CN CN201420099403.1U patent/CN203727605U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI632087B (en) * | 2014-07-30 | 2018-08-11 | 島野股份有限公司 | Bicycle shifting control apparatus |
| CN105984555A (en) * | 2015-02-03 | 2016-10-05 | 禧玛诺（新）私人有限公司 | Operating device |
| CN105984555B (en) * | 2015-02-03 | 2018-10-19 | 禧玛诺（新）私人有限公司 | Operating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171207 Address after: 528308 Guangdong Province, Foshan city Shunde District Lunjiao Street Chung Hei village Yucheng Road West B building 4 floor two Patentee after: GUANGDONG SHUNDE SHUNTAI BICYCLE PARTS Co.,Ltd. Address before: 528308 Guangdong province Foshan city Shunde District Lunjiao street family name in the four seat 403 Euro Patentee before: Qian Haize |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528308 2nd Floor, Block B, West of Yucheng North Road, Xiyong Village Committee, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Shunde Shuntai Intelligent Sports Equipment Co.,Ltd. Address before: 528308 2nd Floor, Block B, West of Yucheng North Road, Xiyong Village Committee, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG SHUNDE SHUNTAI BICYCLE PARTS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |