Technology for manufacturing tubular body of load-bearing frame for chair

A manufacturing method and bearing surface technology, applied in the field of chair components, can solve the problems of easy cracking of leather or cloth, broken wooden frame, broken cloth or leather, etc.

Inactive Publication Date: 2002-01-09
刘宗信
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because if the load-bearing part of the leisure chair is composed of round steel pipes to form a load-bearing frame, and then the edges of cloth and leather are sewn into a fit part, the round steel pipe can be directly inserted into the fit when assembling. inside, or use a spring to connect between the cloth, leather and the load-bearing frame, but when this kind of leisure chair bears the weight of the human body, the seams of the leather or cloth are easy to crack, or the wooden frame will break, and The stitching is also easy to cause the cloth or leather to break

Method used

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  • Technology for manufacturing tubular body of load-bearing frame for chair
  • Technology for manufacturing tubular body of load-bearing frame for chair
  • Technology for manufacturing tubular body of load-bearing frame for chair

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Embodiment Construction

[0028] The manufacturing method of the frame tube body of the chair bearing surface of the present invention includes: a front-stage process 10, a middle-stage process 30 and a rear-stage process 40. Through the three-stage process, a steel plate or other metal sheet 20 can be roll-formed into a usable Tube body on the frame of the load-bearing surface of the chair.

[0029] When the above-mentioned pipe body is manufactured, a steel plate 20 is firstly taken as the pipe body substrate, and in the preceding process 10, the steel plate 20 is first transported on the leveling mechanism 1 (such as figure 1 As shown), the leveling mechanism 1 utilizes a plurality of rolling cylinders 11 to level the surface of the steel plate 20 to eliminate unevenness on the surface of the steel plate 20 and improve the quality of pipe body manufacturing;

[0030] After the steel plate 20 is leveled by the leveling mechanism 1, after being rolled by the concave surface 311 and the convex surface ...

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Abstract

A technology for manufacturing the bearing frame tube of chair includes such steps as flatening steel plate, rolling by 4 roller sets to obtain semifinished tube, high-temp welding in high-frequency generator, trimming welded seam, and shaping by rolling with the roller set No.5. Its advantages are high strength (not breaking out), and easy assembling.

Description

Technical field: [0001] The invention relates to a component of a chair, in particular to a method for manufacturing a bearing surface frame. Background technique: [0002] At present, leisure chairs are small in size, light in weight, easy for users to move and decorate, and their prices are cheap, so they are widely used by consumers. However, there are still many problems in the use of leisure chairs. Because if the load-bearing part of the leisure chair is composed of round steel pipes to form a load-bearing frame, and then the edges of cloth and leather are sewn into a fit part, the round steel pipe can be directly inserted into the fit when assembling. inside, or use a spring to connect between the cloth, leather and the load-bearing frame, but when this kind of leisure chair bears the weight of the human body, the seams of the leather or cloth are easy to crack, or the wooden frame will break, and The stitching is also easy to cause the cloth or leather to break. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/00B21C37/15B21D53/74B23K13/01B23P23/04
Inventor 刘宗信
Owner 刘宗信
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