Mechanical stretching device for movable sofa

The technology of a stretching device and an electric device, which is applied to sofas, couchs, beds, etc., can solve the problems of poor synchronization, high manufacturing difficulty and high maintenance costs, and achieve the effects of good stability, low maintenance costs and convenient assembly.

Inactive Publication Date: 2015-06-24
TAIZHOU AODE FURNITURE ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a movable sofa mechanical stretching device, which solves the problems of poor synchronization, high manufacturing difficulty and high maintenance cost of the movable sofa mechanical stretching device in the prior art, and provides a movable sofa mechanical stretching device using a connecting rod device

Method used

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  • Mechanical stretching device for movable sofa
  • Mechanical stretching device for movable sofa
  • Mechanical stretching device for movable sofa

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Experimental program
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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the present invention is further described:

[0019] A mechanical stretching device for a movable sofa, including an electric device and a mechanical stretching device. Connecting rod 6, connecting piece D 7, pivot a8, lower driving connection A 9, lower driving connecting B 10, pivot b11, bracket 12, crank 13, third connecting rod 14, back driving rod 15, fourth connecting rod 16. Plate buckle A17, first transmission rod 18, L-shaped angle iron armor 19, connector 20, hub 21, connecting piece A 22, second transmission rod 23, plate buckle B24, connecting piece B 25, third transmission rod 26 , the fourth drive rod 27, the rear drive square tube 28, the connecting piece C 29, the front drive square tube 30, the welding piece 31, the L-shaped angle iron B 32, the bending tube 33, the welding piece 31 and the front drive square tube 30 Rotational connection, the front drive square tube 30 is connected with the L-shaped angl...

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PUM

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Abstract

The invention discloses a mechanical stretching device for a movable sofa, belongs to the field of sofa stretching devices, and used for solving the problems that a mechanical stretching device for the movable sofa is poor in synchronism and high in manufacture difficulty and maintenance cost in the prior art. The invention provides the mechanical stretching device for the movable sofa and with a connecting rod device. According to the device, the connecting rod design is adopted; parts are connected through rivets; and therefore, the synchronism is good; the problems of bilateral unbalance and vibration can be avoided while mechanically stretching; and the mechanical stretching device for the movable sofa has the advantages of being good in stability, simple in structure, convenient to assemble, free of frequent maintenance and low in maintenance cost.

Description

technical field [0001] The invention relates to a sofa stretching device, in particular to a mechanical stretching device for a movable sofa. Background technique [0002] At present, the existing movable sofa mechanical stretching device adopts the roller track structure, and the movable sofa mechanical stretching device adopting the roller track structure is cheaper than the mechanism that relies on the connecting rod device to provide motion to some extent, but the sofa adopting the roller track structure There are some deficiencies in the stretching device: there is a phenomenon of shaking during mechanical stretching, and the synchronization of the left and right mechanical stretching devices is poor, which affects the comfort of the electric sofa; the manufacturing requires tighter tolerances than the connecting rod structure; more frequent use is required The maintenance cost is higher than that of the linkage device. Contents of the invention [0003] The inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C17/04A47C20/10
Inventor 徐小林
Owner TAIZHOU AODE FURNITURE ACCESSORIES
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