CN1089558A - But the vertical tube of front fork of banding handlebar, last retaining and locknut - Google Patents
But the vertical tube of front fork of banding handlebar, last retaining and locknut Download PDFInfo
- Publication number
- CN1089558A CN1089558A CN 93100510 CN93100510A CN1089558A CN 1089558 A CN1089558 A CN 1089558A CN 93100510 CN93100510 CN 93100510 CN 93100510 A CN93100510 A CN 93100510A CN 1089558 A CN1089558 A CN 1089558A
- Authority
- CN
- China
- Prior art keywords
- front fork
- vertical tube
- locknut
- handlebar
- banding
- 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
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
" but the vertical tube of front fork of banding handlebar, last retaining and locknut " belongs to the front fork parts of bicycle.In the prior art, the method for attachment of handlebar and front fork be by in the handlebar parts heart screw mandrel, heart nut is fixed, the shortcoming of this method of attachment is that part is many; The cost height, and the fluting place of stem lower end is easily broken." but the vertical tube of front fork of banding handlebar, last retaining and locknut " is characterised in that the upper end saw of vertical tube of front fork has many seams, last retaining has two external threadings, first external threading is screwed on the vertical tube of front fork, the locknut inwall has tapering, after it was screwed on second external threading that keeps off, the mouth of pipe of vertical tube of front fork can shrink and the banding handlebar." but the vertical tube of front fork of banding handlebar, last retaining and locknut " is applicable to various bicycles, three-wheel vehicle.
Description
The present invention relates to the front fork parts of bicycle
In the prior art, the outside thread that M26 * 1 is arranged on the vertical tube of front fork, there is bar to block the groove of lamp bracket on the wall near the mouth of pipe, the mouth of pipe is in working order, it can not shrink to center of circle direction, last retaining inner wall has the screw thread of M26 * 1, be screwed in the degree of tightness that is used to control front fork and vehicle frame on the vertical tube of front fork with it, the locknut inwall has the screw thread of M26 * 1, its effect is that retaining is gone up in locking, after stem inserts vertical tube of front fork, is by heart screw mandrel is strained in the stem heart nut to be produced tension, the stem lower end that has a groove risen big after, be close to the vertical tube of front fork inwall and play interconnect function.The shortcoming of this method of attachment is that part is many, the cost height, and also the fluting place of stem lower end is easily broken.
The objective of the invention is to save a heart screw mandrel, heart packing ring, heart nut and lamp bracket (retaining washer), and utilize the stem vacate to insert umbrella.
Solution of the present invention is to saw out some seams in the upper end of vertical tube of front fork earlier, above last retaining, increase by second external threading again, when last retaining is twisted after on the vertical tube of front fork, again locknut is tightened on second external threading of retaining, because of the inwall of locknut has tapering, force the vertical tube of front fork mouth of pipe to shrink, thereby reach the purpose of banding stem, also locked last retaining simultaneously to center of circle direction.
This scheme can reduce the number of parts of bicycle, alleviates car weight, cost-cutting, and can guarantee that the stem lower end is excellent, and can utilize the space of stem to insert umbrella or penetrate the brake pull bar and the brake line in addition, make the bicycle outward appearance more succinct.
The present invention includes vertical tube of front fork, last retaining and locknut.
Vertical tube of front fork is to make with 26 millimeters steel pipes, and there is the outside thread of M26 * 1 its upper end, and mouth of pipe saw has many seams, and mouth of pipe cylindrical has tapering.
The inwall that performs has the screw thread of M26 * 1, and its periphery has rolled decorative pattern, between inwall and cylindrical alley is arranged, and these all are prior aries, and different is to increase in addition one deck cylinder is arranged on last retaining, cylinder have an appointment M30 * 1 second the cover outside thread.
The upper strata of locknut is a truncated cone-shaped, and inwall has tapering, about 22.5 millimeters of last bore, and lower floor is cylindrical, the have an appointment screw thread of M30 * 1 of inwall, outer wall is porose, is convenient to pull.
After last retaining is contained on the vertical tube of front fork, again locknut is tightened on second external threading of retaining, the locknut inwall extruding this moment vertical tube of front fork mouth of pipe makes the mouth of pipe that has seam reach banding handlebar purpose to the contraction of center of circle direction,
Another kind of scheme of the present invention is that the second cover outside thread with last retaining makes negative thread into, makes the negative thread of locknut into outside thread again and gets final product.
Claims (3)
- But the vertical tube of front fork of 1 banding handlebar, last retaining and locknut include vertical tube of front fork, last retaining and locknut is characterized in that retaining increases a layer height is arranged, on second external threading is arranged, locknut has the screw thread that matches with last retaining second external threading.
- But 2, according to the vertical tube of front fork of the said banding handlebar of claim 1, last retaining and locknut is characterized in that having tapering in vain in the locknut upper strata.
- But 3, according to the vertical tube of front fork of the said banding handlebar of claim 1, last retaining and locknut is characterized in that the upper end saw of vertical tube of front fork has many seams, and mouth of pipe cylindrical has tapering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100510 CN1089558A (en) | 1993-01-01 | 1993-01-01 | But the vertical tube of front fork of banding handlebar, last retaining and locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93100510 CN1089558A (en) | 1993-01-01 | 1993-01-01 | But the vertical tube of front fork of banding handlebar, last retaining and locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1089558A true CN1089558A (en) | 1994-07-20 |
Family
ID=4983066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93100510 Pending CN1089558A (en) | 1993-01-01 | 1993-01-01 | But the vertical tube of front fork of banding handlebar, last retaining and locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391635B (en) * | 2002-07-29 | 2013-09-18 | 马丁·F·维默尔 | Front wheel suspension system for vehicle with a single front wheel |
-
1993
- 1993-01-01 CN CN 93100510 patent/CN1089558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391635B (en) * | 2002-07-29 | 2013-09-18 | 马丁·F·维默尔 | Front wheel suspension system for vehicle with a single front wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |