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U-shaped shock-absorbing fork leg formed from a single pipe and its processing method

A processing method and U-shaped technology, applied in steering mechanism, bicycle accessories, transportation and packaging, etc., can solve the problems of rough appearance, not light enough, and high cost of shock absorber forks, and achieve smooth appearance, weight reduction, and waste reduction. Effect

Active Publication Date: 2017-02-01
天津市摩大金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problems of rough appearance, low strength, insufficient lightness and high cost of existing bicycle shock absorber forks, and provides a U-shaped shock absorber fork leg formed from a single pipe and a processing method thereof. The shock-absorbing fork leg is made of a single metal pipe, which has high strength, light structure, beautiful appearance, and smooth appearance, which ensures product quality; its processing method basically does not involve welding technology, and the cost of raw materials, technology and labor is also large. to reduce

Method used

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  • U-shaped shock-absorbing fork leg formed from a single pipe and its processing method
  • U-shaped shock-absorbing fork leg formed from a single pipe and its processing method
  • U-shaped shock-absorbing fork leg formed from a single pipe and its processing method

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Effect test

Embodiment 1

[0085] like Figure 5 to Figure 7 As shown, this embodiment 1 discloses a U-shaped shock-absorbing fork leg formed from a single pipe, which mainly includes a U-shaped lap section 1, two fork leg sections 3, and two fork end sections 4 , The U-shaped overlapping section 1, the fork leg section 3, and the fork end section 4 are integrally formed by pipe materials.

[0086] The U-shaped overlapping section 1 is located at the top of the two fork leg sections 3 and connects them to each other. The U-shaped overlapping section 1 gradually bends forward with a certain arc from the bottom to the top, such as Figure 6 shown; or the U-shaped overlapping section 1 gradually bends back in a certain arc from the bottom to the top, as Figure 7 shown. It should be noted that the "front" and "rear" directions mentioned in this application document are based on the front and rear directions of a bicycle or electric bicycle. There is an arc 7 at the position where the U-shaped lap secti...

Embodiment 2

[0101] like Figure 25 to Figure 27 As shown, this embodiment discloses a U-shaped shock-absorbing fork leg formed from a single pipe, which mainly includes a U-shaped lap section 1, two fork leg sections 3, and two fork end sections 4, The U-shaped lap section 1 , the fork leg section 3 and the fork end section 4 are integrally formed by pipe material, and the pipe wall thickness of the pipe material is 0.5-5.0 mm.

[0102] The U-shaped overlapping section 1 is located at the top of the two fork leg sections 3 and connects them to each other. The U-shaped overlapping section 1 gradually bends forward with a certain arc from the bottom to the top, such as Figure 26 shown; or the U-shaped overlapping section 1 gradually bends back in a certain arc from the bottom to the top, as Figure 27 shown. The U-shaped overlapping section 1 is partially cut away from the pipe material longitudinally, so that it has a C-shaped pipe section formed by a single-layer pipe wall.

[0103] ...

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Abstract

The invention discloses a U-shaped shock absorption fork leg formed by a single pipeline and a manufacturing method of the U-shaped shock absorption fork leg. The U-shaped shock absorption fork leg comprises a U-shaped lapping section, fork leg sections and fork end sections which are integrally formed by the pipeline; the U-shaped lapping section is positioned on the tops of two fork leg sections which are connected with each other through the U-shaped lapping section, and gradually bends forward or bends backward from bottom to top, and the pipeline section of the U-shaped lapping section is in a shape of C; two fork leg sections are eudipleural and parallel with each other; and two fork end sections are respectively positioned at the bottoms of the two fork leg sections. The U-shaped shock absorption fork leg can be integrally formed by bending, arc opening punching, cutting, extruding, pipe expanding and cut flattening of the single metal pipeline. The U-shaped shock absorption fork leg manufactured by the single metal pipeline has high strength, a light structure, attractive and flat appearance, so that the product quality is ensured; and a welding technology is not included in the manufacturing method, so that raw materials, a process and labor cost are greatly reduced.

Description

technical field [0001] The invention relates to a fork leg of a shock-absorbing frame for a bicycle, in particular to a U-shaped shock-absorbing fork leg and a processing method thereof. Background technique [0002] Bicycles and electric bicycles mostly use shock absorber forks due to road conditions. Especially in recent years, mountain bikes, which are popular at home and abroad, have higher and higher requirements for shock-absorbing front forks. service life. [0003] The shock-absorbing front fork is assembled by the shock-absorbing fork legs and the upper fork components. At present, the shock-absorbing frame forks used by manufacturers in the industry are roughly divided into two categories: one is composed of iron pipes, U-shaped iron connectors and iron forks. The pieces are combined and welded, such as figure 1 and figure 2 As shown; specifically, two iron pipes of a predetermined length, one end of which is welded with a U-shaped iron connector, and the othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K21/02
Inventor 杨帆
Owner 天津市摩大金属制品有限公司