CN2692002Y - Locking device of bicycle carbon fiber front fork - Google Patents
Locking device of bicycle carbon fiber front fork Download PDFInfo
- Publication number
- CN2692002Y CN2692002Y CN 200420015173 CN200420015173U CN2692002Y CN 2692002 Y CN2692002 Y CN 2692002Y CN 200420015173 CN200420015173 CN 200420015173 CN 200420015173 U CN200420015173 U CN 200420015173U CN 2692002 Y CN2692002 Y CN 2692002Y
- Authority
- CN
- China
- Prior art keywords
- front fork
- carbon fiber
- tapered sleeve
- standpipe
- loam cake
- 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.)
- Expired - Fee Related
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model discloses a locking device of a bicycle carbon fiber front fork, aiming to overcoming the problem that the petal shape disc of a locking device in prior art damages the standpipe of a front fork. The locking device of a bicycle carbon fiber front fork comprises adjusting screws, an upper cover, an upper taper sleeve, a lower taper sleeve and an expansion sleeve with a longitudinal opening. The adjusting screws are threaded in the upper cover, the upper taper sleeve, the lower taper sleeve and the expansion sleeve and screwed in the central screw hole of the lower taper sleeve, and then the locking device is arranged in the standpipe of the front fork; a circular bead under the upper cover is against the upper end surface of the standpipe of the front fork, the adjusting screws are screwed tightly, the expansion sleeve can expanded, and the standpipe of the front fork is fixed with the expansion sleeve; the tightness of the screws are adjusted, and thus the top and the bottom position of the standpipe of the front fork can be adjusted. The locking device of a bicycle carbon fiber front fork not only can be used as the locking device of a bicycle front fork made of carbon fiber, but also can be used in bicycles made of steel and aluminum materials.
Description
Technical field
The utility model relates to a kind of latching device of bicycle front fork, especially a kind of latching device of Bicycle carbon fiber front fork.
Background technology
At present, the front fork of bicycle is divided into two kinds of dentition formula and no dentition formulas, and it generally is to make with steel or aluminium.For luxury car, the no dentition formula front fork of many employings, the latching device of its front fork comprises a loam cake, a set screw and two petal video discs.During assembling, earlier petal video disc is knocked into standpipe of front fork, and then load onto lid and set screw.This device is by the interference fit between video disc cylindrical and the standpipe of front fork standpipe of front fork and video disc to be fixed together.When twisting set screw, can adjust the upper-lower position of standpipe of front fork.But, along with development of science and technology, the front fork that carbon fiber is made has appearred.For the carbon fiber front fork, above-mentioned petal butterfly sheet is tantamount to a blade, very easily the standpipe of front fork damage is had an accident.
Summary of the invention
The purpose of this utility model is the defective that overcomes above-mentioned prior art, for the carbon fiber bicycle front fork provides a kind of safe and reliable latching device.
Technical scheme below above-mentioned purpose adopts just can realize: the same set screw and the loam cake of comprising with prior art of the latching device of this programme, the lower end of loam cake comprises a shoulder that matches with the standpipe of front fork upper surface, its improved place is to also have one to go up tapered sleeve, a following tapered sleeve and a tension ring, wherein the two ends up and down of the endoporus of tension ring have one section taper hole that the vertex of a cone is inside respectively, its ring wall has a groove of central axes with ring, is shaped on one section conical surface that matches with the taper hole of tension ring and go up respectively on the cylindrical of tapered sleeve and following tapered sleeve; There is a screw that matches with set screw at the center of following tapered sleeve; Fit in the lower surface of loam cake and the upper surface of last tapered sleeve; Set screw from top to bottom order pass loam cake, go up tapered sleeve, the central through hole of tension ring, and be assembled together with the screw of following tapered sleeve.
During use, latching device is put into standpipe of front fork, the shoulder that matches with the standpipe of front fork upper surface of loam cake lower end withstands on the upper surface of standpipe of front fork; Tighten set screw this moment, then drive tapered sleeve upward movement down, promote tension ring and last tapered sleeve again by screw; Because the lower surface of loam cake has compressed the upper surface of last tapered sleeve it can not be moved, force the groove spreading of tensioner ring wall, thereby standpipe of front fork and tension ring are fixed together.At this moment, the adjustment set screw just can drive standpipe of front fork and move up and down, to regulate the degree of tightness of bearing.
The beneficial effects of the utility model are, and are safe and reliable, can not damage the carbon fiber standpipe of front fork; Its expansion stroke is big, and area of contact is big, and coupling mechanism force is strong; In light weight, simple in structure, low production cost; This device also can be used in the bicycle of steel, aluminum making.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is an installation site of the present utility model scheme drawing.
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, Fig. 2, Fig. 3.The latching device of present embodiment comprises set screw 21 and loam cake 22, the lower end of loam cake 22 comprises a shoulder 221 that matches with the standpipe of front fork upper surface, it also has two to go up tapered sleeve 23, a following tapered sleeve 25 and a tension ring 24 in addition, wherein the two ends up and down of the endoporus of tension ring 24 have one section taper hole that the vertex of a cone is inside respectively, its ring wall has a groove 241 of central axes with ring, is shaped on one section conical surface that matches with the taper hole of tension ring and go up respectively on the cylindrical of tapered sleeve 23 and following tapered sleeve 25; There is a screw that matches with set screw at the center of following tapered sleeve 25; Fit in the upper surface of the lower surface of loam cake 22 and last tapered sleeve 23; Set screw 21 from top to bottom order pass loam cake 22, go up tapered sleeve 23, the central through hole of tension ring 24, and be assembled together with the screw of following tapered sleeve 25.
On the shoulder 221 that matches with the standpipe of front fork upper surface of loam cake 22, can also design the bigger shoulder 222 that is complementary with stem 1 upper surface of external diameter, be used to compress stem.Certainly, establishing a gland in addition also can reach same purpose separately.
In order to increase the friction force of tensioner cover, can on the cylindrical of tensioner cover, make annular knurl.
Said set screw 21 can be six screw with square heads in, and this screw head sinks in the centre hole of loam cake 22; Also can be outer six screw with square heads, and this screw head be positioned on the upper surface of loam cake 22.
Referring to Fig. 3.During use, latching device is put into standpipe of front fork 41, the shoulder 221 that matches with the standpipe of front fork upper surface of loam cake 22 lower ends withstands on the upper surface of standpipe of front fork 41; Tighten set screw 21 this moment, then drive tapered sleeve 25 upward movements down, promote tension ring 24 and last tapered sleeve 23 again by screw 21; Because the lower surface of loam cake 22 has compressed the upper surface of last tapered sleeve 23 it can not be moved, force the groove spreading 241 of the ring wall of tension ring 24, thereby standpipe of front fork 41 and tension ring 24 are fixed together.At this moment, adjustment set screw 21 just can drive standpipe of front fork 41 and move up and down, to regulate the degree of tightness of bearing.
For the installation site of latching device clearly is described, there is shown cycle frame 3, front fork 4, cushion block 5, stem 1; Wherein, the vertical tube 41 of front fork 4 passes from the hole of the car head 31 of vehicle frame 3, and stem 1 is contained in the upper end of standpipe of front fork 41 and fixes top positions by the shoulder 222 below the loam cake 22, and the following position back cushion piece 5 and the last surface bearing of front fork fix; The hole 12 of stem 1 is used to assemble the handlebar (not shown).
Claims (5)
1. the latching device of a Bicycle carbon fiber front fork, comprise set screw and loam cake, the lower end of loam cake comprises a shoulder that matches with the standpipe of front fork upper surface, it is characterized in that also having one and go up tapered sleeve, a following tapered sleeve and a tension ring, wherein the two ends up and down of the endoporus of tension ring have one section taper hole that the vertex of a cone is inside respectively, its ring wall has a groove of central axes with ring, is shaped on one section conical surface that matches with the taper hole of tension ring and go up respectively on the cylindrical of tapered sleeve and following tapered sleeve; There is a screw that matches with set screw at the center of following tapered sleeve; Fit in the lower surface of loam cake and the upper surface of last tapered sleeve; Set screw from top to bottom order pass loam cake, go up tapered sleeve, the central through hole of tension ring, and be assembled together with the screw of following tapered sleeve.
2. the latching device of Bicycle carbon fiber front fork according to claim 1 is characterized in that saidly also having an external diameter than its big shoulder that is complementary with the stem upper surface on the shoulder that matches with the standpipe of front fork upper surface of loam cake.
3. the latching device of Bicycle carbon fiber front fork according to claim 2 is characterized in that being shaped on annular knurl on the cylindrical of said tensioner cover.
4. according to the latching device of claim 1 or 2 or 3 described Bicycle carbon fiber front forks, it is characterized in that said set screw is six screw with square heads in, and this screw head sinks in the centre hole of loam cake.
5. according to the latching device of claim 1 or 2 or 3 described Bicycle carbon fiber front forks, it is characterized in that said set screw is outer six screw with square heads, and this screw head is positioned on the upper surface of loam cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015173 CN2692002Y (en) | 2004-01-26 | 2004-01-26 | Locking device of bicycle carbon fiber front fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015173 CN2692002Y (en) | 2004-01-26 | 2004-01-26 | Locking device of bicycle carbon fiber front fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2692002Y true CN2692002Y (en) | 2005-04-13 |
Family
ID=34768760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015173 Expired - Fee Related CN2692002Y (en) | 2004-01-26 | 2004-01-26 | Locking device of bicycle carbon fiber front fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2692002Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2336986A1 (en) * | 2007-11-20 | 2010-04-19 | Eduardo Sentis Barja | Urban bike (Machine-translation by Google Translate, not legally binding) |
| CN102310912A (en) * | 2011-05-16 | 2012-01-11 | 无锡尚格工业设计有限公司 | Friction adjusting structure of front branched tube of folding bicycle |
-
2004
- 2004-01-26 CN CN 200420015173 patent/CN2692002Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2336986A1 (en) * | 2007-11-20 | 2010-04-19 | Eduardo Sentis Barja | Urban bike (Machine-translation by Google Translate, not legally binding) |
| CN102310912A (en) * | 2011-05-16 | 2012-01-11 | 无锡尚格工业设计有限公司 | Friction adjusting structure of front branched tube of folding bicycle |
| WO2012155309A1 (en) * | 2011-05-16 | 2012-11-22 | 无锡尚格工业设计有限公司 | Friction adjustment structure for front fork tube of folding bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |