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Straight-locking vertical tube

A technology of direct lock and standpipe, which is applied in the direction of steering mechanism, bicycle accessories, transportation and packaging, etc. It can solve the problems of poor stability and achieve the effect of good stability

Active Publication Date: 2015-09-09
威菩有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the width of the clamping portion 112 and the upper cover 12 of this type of straight-lock riser is relatively short, resulting in poor stability of the grip bar 14 due to the small range clamped by the straight-lock riser

Method used

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  • Straight-locking vertical tube
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  • Straight-locking vertical tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] see image 3 and Figure 4 , The straight lock riser 20 provided by a preferred embodiment of the present invention includes a base 30 , an upper cover 40 , two first screws 51 , two second screws 52 , and four third screws 53 .

[0052] see Figure 4 to Figure 6 , the base 30 has a clamping portion 31, the clamping portion 31 has a planar top surface 311, and a lower surface 312 that faces the opposite direction of the top surface 311 and is concave and convex, according to the The clamping portion 31 can define a front side 313 , a rear side 314 , a left side 315 and a right side 316 when the straight-lock seat tube 20 is installed on the bicycle at the rider's position. The base 30 further has two extending portions 32 integrally extending from the rear side 314 of the clamping portion 31 , and two first through holes 33 respectively disposed on the two extending portions 32 .

[0053]The clamping portion 31 further has a lower groove 34 that is recessed from the ...

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PUM

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Abstract

The invention discloses a straight-locking vertical tube, comprising a base and an upper cover. The base has a clamping part, two extension parts and two first penetrating holes arranged on the extension hole. The clamping portion has a groove concaving from the top surface, a concave arc surface positioned the lower groove, two second penetrating hole and four screw bolt which are arranged on the lower concave arc surface, two shoulder caps, the first screw of which pass the first penetrating hole and screwed on a vertical tube; the two screws penetrates the second penetrating holes and are screwed on the shoulder cap; the upper cover has an upper groove sinking from the bottom, an upper concave arc surface positioned inside the upper groove and four third penetrating holes arranged on the bottom; the four third screws are penetrating the third penetrating holes and screwed in the screw hole.

Description

technical field [0001] The present invention relates to bicycle stems, and more particularly to a direct mount stem. Background technique [0002] see figure 1 and figure 2 , the existing direct lock riser 10 mainly includes a base 11 and an upper cover 12, the base 11 has a clamping portion 112, and two fixing portions 114 integrally extending from the clamping portion 112 . The upper cover 12 is fixed to the clamping portion 112 by four screws 13 for clamping and fixing a grip bar 14 of the bicycle between the upper cover 12 and the clamping portion 112 . The two fixing parts 114 are fixed to a front fork crown 16 (fork crown) of the bicycle by four screws 15 . The front fork crown 16 is affixed to a vertical tube 17 and two shock absorbers 18 of the bicycle, and then indirectly affixed to the front wheel (not shown) of the bicycle. Therefore, the user can control the bicycle through the grip bar 14 The front wheel of the bicycle. The straight-lock riser 10 is mostl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K21/18
Inventor 何凯文
Owner 威菩有限公司