CN1132164A - Automatic tightening device for bicycle chain - Google Patents
Automatic tightening device for bicycle chain Download PDFInfo
- Publication number
- CN1132164A CN1132164A CN 95121401 CN95121401A CN1132164A CN 1132164 A CN1132164 A CN 1132164A CN 95121401 CN95121401 CN 95121401 CN 95121401 A CN95121401 A CN 95121401A CN 1132164 A CN1132164 A CN 1132164A
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- chain
- arm
- axle sleeve
- support arm
- 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.)
- Pending
Links
Images
Abstract
An automatic tensioner for bicycle chain is composed of corbel arm, rockerarm pivoted to corbel arm by pin, spring connected to corbel arm and rockerarm, axle sleeve on rockerarm, and thoothed press wheel on axle sleeve, and features simple structure and small size. It can prevent the chain from coming off.
Description
The present invention relates to a kind of chain tensioning device, relate in particular to a kind of automatic tightening device for bicycle chain that is applicable to finite space.
Chain on the bicycle is a transferring power, drives wheel, realizes the vital parts of bicycle running.The in use modal ＂ illness of chain ＂ is elongated, cause the tolerance clearance of transmission device loosening, chain and gear meshing face are reduced, therefore chain appears taking off easily, problems such as climbing tooth, the cyclist runs into this situation, must hang up chain again, or place under repair, even need more renew chain and could continue to use.This brings very big inconvenience and economic loss to the car owner,
The object of the present invention is to provide a kind of being installed on the bicycle, simple in structure, use reliably, with low cost, handsome in appearance, volume is little, can keep the chain automatic tightening device for bicycle chain of in tension all the time.
Technical solution of the present invention is, this automatic tightening device for bicycle chain is made up of support arm and rocking arm two parts, the support arm left end is provided with mounting hole, support arm and rocking arm are hinged by connecting pin, spring housing is on pin, one end of spring is inserted in the shape face on the support arm, the other end is inserted in the shape face of rocking arm; rocking arm is provided with screw bolt and nut; be with fastening axle sleeve on the bolt, be connected with on the axle sleeve and rocking arm between glade plane space is arranged, and the profile of tooth pinch roller that can rotate around axle sleeve; the rocking arm bottom is provided with semicircle periphery shape chain, to guarantee the relative position of pinch roller and chain.
The present invention is simple in structure, and cost is low, uses flexibility and reliability, and handsome in appearance, volume is little, need not change bicycle structure, can be installed in easily on the new old bike of various models, keeps chain in tension all the time, prevents that cycle chain from taking off chain, climbing tooth.
Concrete structure of the present invention is provided by drawings and Examples.
Fig. 1 is the constitution diagram of installing and using of the present invention;
Fig. 2 is the view of Figure 1B-B section;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is the birds-eye view of Fig. 3;
Fig. 5 is the right elevation of Fig. 3.
Below in conjunction with drawings and Examples the present invention is described in more detail.
Embodiment:
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, this automatic tightening device for bicycle chain comprises support arm 3 and rocking arm 6, support arm 3 is processed with mounting hole 19 at left end, support arm 3 and rocking arm 6 are hinged by pin 5, spring 4 is enclosed within on the pin 5, one end of spring 4 is inserted in the shape face 20 on the support arm (3), the other end is inserted in the shape face 21 of rocking arm 6; bolt 7 and nut 18 are housed on the rocking arm 6, are with axle sleeve 17 on the bolt 7, and plastics profile of tooth pinch roller 8 is housed on the axle sleeve 17; between pinch roller 8 and the rocking arm 6 glade plane space is arranged; and can rotate around axle sleeve 17, the bottom of rocking arm 6 strikes out semicircle periphery shape, forms the chain guide groove.
Installation and application of the present invention is as follows:
The left end hole 19 of support arm 3 is enclosed within on the bicycle rear axle rod 1, be stuck between rear axle shelves 12 and the right chain stay 13, parallel with flywheel 2, thereby make pinch roller 8 profile of tooth planes 22 and chain 9 planes 23 keeping parallelisms, determine, be connected the residing upper-lower position of support arm 3 other ends on the rear axle rod 1, adjust spring 4 whereby behind the elastic force on the rocking arm 6, tighten the nut 11 on the bicycle, mobile again rocking arm 6, it is moved axially on pin 5, owing to be hinged on rocking arm 6 on the support arm 3 adjusting play in the certain limit is arranged in its both sides, after pinch roller 8 and chain 9 contrapositions, by the elastic force effect of spring 4 on rocking arm 6, at this moment pinch roller 8 presses and leans against on the chain 9, makes chain 9 by loosening to tensioning.Guaranteed that bicycle running does not take off chain, not climbing tooth.
9 ' is loosening chain on the bicycle among Fig. 1, and 9 are the chains with institute of the present invention tensioning.
14 is the rear hub cup of bicycle among Fig. 2, and 16 is the right floral disc of rear axle, and 15 is steel ball.
Claims (1)
1. automatic tightening device for bicycle chain, comprise support arm (3) and rocking arm (6), it is characterized in that: support arm (3) left end is provided with mounting hole (19), support arm (3) other end and rocking arm (6) are hinged by pin (5), spring (4) is enclosed within on the pin (5), one end of spring (4) is inserted in the shape face (20) on the support arm (3), the other end is inserted in the shape face (21) of rocking arm (6); rocking arm (6) is provided with bolt (7) and nut (18); the axle sleeve (17) that is enclosed within on the bolt (7) is fastened on the rocking arm (6) by bolt (7) and nut (18); the axle sleeve (17) of rocking arm (6) is provided with rocking arm (6) and is moving contact; and can be around the profile of tooth pinch roller (8) of axle sleeve (17) rotation, rocking arm (6) bottom is provided with the chain guide groove of half garden periphery shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95121401 CN1132164A (en) | 1995-12-21 | 1995-12-21 | Automatic tightening device for bicycle chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95121401 CN1132164A (en) | 1995-12-21 | 1995-12-21 | Automatic tightening device for bicycle chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1132164A true CN1132164A (en) | 1996-10-02 |
Family
ID=5082428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95121401 Pending CN1132164A (en) | 1995-12-21 | 1995-12-21 | Automatic tightening device for bicycle chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1132164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854015B (en) * | 2005-04-20 | 2010-05-12 | 株式会社岛野 | Chain tension applying device |
| TWI648197B (en) * | 2017-12-04 | 2019-01-21 | 桂盟企業股份有限公司 | Tensioning device for chain |
-
1995
- 1995-12-21 CN CN 95121401 patent/CN1132164A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854015B (en) * | 2005-04-20 | 2010-05-12 | 株式会社岛野 | Chain tension applying device |
| TWI648197B (en) * | 2017-12-04 | 2019-01-21 | 桂盟企業股份有限公司 | Tensioning device for chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2409818A1 (en) | Combination belt tensioner and idler | |
| CN1364718A (en) | Combined speed changing and brak control unit of bicycle | |
| CA2114960A1 (en) | Derailleur Mounting Assembly for a Bicycle | |
| WO2023077702A1 (en) | Swingable shaft-driven tricycle | |
| CN1132164A (en) | Automatic tightening device for bicycle chain | |
| CN2835070Y (en) | Brake with parking mechanism | |
| CN213230254U (en) | Automatic tensioning mechanism of plate chain line | |
| CA2023180A1 (en) | Structure of bicycle chain transmission | |
| CN2522384Y (en) | Curve-roller low-noise driving device of roller conveyer | |
| CN209539944U (en) | Motorcycle transmission belt tensioning mechanism | |
| CN2324057Y (en) | Chain wheel system for bicycle | |
| CN213262821U (en) | Chain locking device and electric bicycle | |
| CN2681991Y (en) | Motorcycle chain stretcher | |
| CN213332245U (en) | Chain guide device and vehicle | |
| CN213839440U (en) | Chain tensioning device | |
| CN201834170U (en) | Chain tensioning device of damping simple electric bicycle | |
| CN2347871Y (en) | Driving mechanism of bicycle | |
| CN2648077Y (en) | Timing camshaft for motorcycle engine | |
| CN219948476U (en) | Belt pulley protection device and bicycle | |
| CN202389552U (en) | Detachable gear shift device for motorcycle | |
| CN2337062Y (en) | Assembly unit for spring antivibrating cycle | |
| CN2315039Y (en) | Power saving device for bicycle | |
| CN210681049U (en) | Chain guide of rear transmission | |
| CN209369927U (en) | A kind of timing chain drive system of high stability | |
| CN2221544Y (en) | Miniature hydraulic hand brake for cycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |