Unlock instant, AI-driven research and patent intelligence for your innovation.

Rotational armrest apparatus

a technology of rotating armrests and armrests, which is applied in the direction of chairs, vehicle components, vehicle arrangements, etc., can solve the problem that no armrests have come to the applicant's

Inactive Publication Date: 2004-11-18
WANG CHING CHANG
View PDF13 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a chair with a rotational armrest apparatus. The armrest apparatus includes a beam attached to the chair and an armrest rotationally mounted on the beam. The beam has a socket, and the armrest has a lower portion inserted rotationally in the socket and an upper portion for supporting an arm. The beam also has apertures through which fasteners can be driven into the seat for mounting the beam on the seat. The armrest has a toothed insert in the grooved recess for retaining the armrest in position relative to the beam. The armrest can be locked in position relative to the beam. The technical effects of the invention include improved comfort, adjustability, and stability of the armrest."

Problems solved by technology

However, no armrest has come to the applicant's knowledge that is rotational relative to the seat.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotational armrest apparatus
  • Rotational armrest apparatus
  • Rotational armrest apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Referring to FIG. 1, according to the preferred embodiment of the present invention, a rotational armrest apparatus 1 includes a beam 10 for attachment to a seat of a chair (not shown) and an armrest 20 rotationally mounted on the beam 10.

[0021] The beam 10 includes a socket 12 formed thereon. The armrest 20 includes a lower portion in the form of an insert 22 rotationally inserted in the socket 12 and an upper portion 21 for supporting an arm.

[0022] Referring to FIG. 2, the beam 10 defines slots or apertures 11 through which fasteners (not shown) can be driven into the seat for mounting the beam 10 on the seat. The socket 12 defines a space 13, a taper recess 14 communicated with the space 13 and a space 17 communicated with the grooved recess 14. Grooves (not numbered) are defined in the recess 14. An annular shoulder 15 is formed on the external side of the socket 12. Two grooves 16, two recesses 161 and two apertures 162 are defined in the external side of the socket 12. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A chair includes a seat and a rotational armrest apparatus mounted on the seat. The armrest apparatus includes a beam attached to the seat and an armrest rotationally mounted on the beam. The beam includes a socket formed thereon. The armrest includes a lower portion inserted rotationally in the socket and an upper portion for supporting an arm. The beam defines apertures through which fasteners can be driven into the seat for mounting the beam on the seat. The socket defines an upper space and a grooved recess communicated with the upper space. The lower portion of the armrest includes a toothed insert inserted in the grooved recess for retaining the armrest in position relative to the beam.

Description

[0001] The present invention relates to a chair and, more particularly, to a rotational armrest apparatus of a chair.BACKGROUND OF INVENTION[0002] A typical chair for use in an office includes a base, a post mounted on the base, a seat mounted on the post, a backrest mounted on the seat and two armrests mounted on the seat. Some armrests are retained in position relative to the seat. Some other armrests include a telescopic structure that can be lifted or lowered according to a user's size. However, no armrest has come to the applicant's knowledge that is rotational relative to the seat.SUMMARY OF INVENTION[0003] The primary objective of the present invention is therefore to provide a chair with a rotational armrest apparatus.[0004] According to the present invention, the armrest apparatus includes a beam attached to the chair and an armrest rotationally mounted on the beam.[0005] The beam includes a socket formed thereon. The armrest includes a lower portion inserted rotationally i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A47C7/54
CPCA47C1/03A47C1/0308
Inventor WANG, CHING-CHANG
Owner WANG CHING CHANG