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Adjustable footrest ring for chair

a footrest and adjustable technology, applied in the field of chairs, can solve the problems of user discomfort, inability to adjust the position of the footrest, and the user's footrest cannot be supported, and achieve the effect of easy adjustmen

Active Publication Date: 2017-03-09
DONGGUAN KENTEC OFFICE SEATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a footrest ring for a chair that allows the position of the footrest to be easily adjusted to meet different users' needs. This provides greater flexibility and comfort for users of the chair.

Problems solved by technology

Although existing chairs are very comfortable for users, almost all office chairs do not provide a footrest for supporting a user's feet to relax a user's his or her legs.
Even if some office chairs provide a footrest, but the position of the footrest cannot be adjusted or is hard to be adjusted.
A user will feel uncomfortable if the footrest cannot be set a proper position.

Method used

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  • Adjustable footrest ring for chair
  • Adjustable footrest ring for chair
  • Adjustable footrest ring for chair

Examples

Experimental program
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Effect test

Embodiment Construction

[0012]Please refer to FIGS. 1 and 2. As shown, the footrest ring of the invention is installed onto a central post 101 of a chair 100.

[0013]As shown in FIG. 2, the invention includes an inner sleeve 1, a quick-release handle 4, a support frame 2 and a ring 3. The inner sleeve 1 is used for being put around the central post 101. An outer threaded surface 12 is formed on the inner sleeve 1. The inner sleeve 1 has a through slot 11 so as to make the inner sleeve 1 have a C-shape cross-section. A pair of passing holes 13 is provided below the outer threaded surface 12 and beside the through slot 11. The inner sleeve 1 can be normally keep its original shape or forcedly shrunken because of the through slot 11. Preferably, as shown in the FIG. 2, the outer threaded surface 12 can be a frustum of a hollow cone whose bottom diameter is slightly greater than its top diameter.

[0014]The quick-release handle 4 is formed with a through hole 41 at an end thereof. The through hole 41 corresponds t...

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PUM

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Abstract

The invention provides an adjustable footrest ring for a chair with a central post. The invention includes an inner sleeve, a quick-release handle, a support frame and a ring. The inner sleeve is used for being put around the central post and has an outer threaded surface, a through slot and a pair of passing holes below the outer threaded surface. The quick-release handle is formed with a through hole at an end thereof. The through hole corresponds to the passing holes for being passed through by a bolt. The inner sleeve is shrunken when the bolt is tightened and the quick-release handle is closed. The support frame has an outer sleeve and support rods radially extending therefrom. An inner threaded surface is formed inside the outer sleeve so as to screw the outer sleeve onto the inner sleeve. The ring is connected to outer ends of the support rods.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field[0002]The invention relates to chairs, particularly to a chair with a footrest.[0003]2. Related Art[0004]Office chairs with a cushion elevation mechanism and / or flexible back have been very popular. Many chairs are provided with a flexible back with tilt flexibility to satisfy various requirements of users. Although existing chairs are very comfortable for users, almost all office chairs do not provide a footrest for supporting a user's feet to relax a user's his or her legs.[0005]Even if some office chairs provide a footrest, but the position of the footrest cannot be adjusted or is hard to be adjusted. Users with different height need different positions of the footrest. A user will feel uncomfortable if the footrest cannot be set a proper position.SUMMARY OF THE INVENTION[0006]An object of the invention is to provide an adjustable footrest ring for a chair with a central post, which allows position of the footrest on the central ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A47C7/50A47C7/00
CPCA47C7/004A47C7/506A47C7/52A47C7/5064
Inventor SU, CHIH-CHENG
Owner DONGGUAN KENTEC OFFICE SEATING