JP3079506U - Chair armrest elevating structure - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a safe chair armrest elevating structure in which the height of an armrest can be easily adjusted at any time. SOLUTION: An adjusting body 18, a T-shaped pillar 1, and a kiln-shaped mass 2 are mainly provided.
3. A resilient piece 24, a large spring 30, a stereotactic cylinder 8, etc., which are screwed with screws, and finally the T-column is implanted in the stereotactic cylinder to complete the completed structure. To be planted inside. At the upper end of the back of the protective cylinder, stereotactic arc grooves 32 are provided, respectively.
A diverting groove 33 is provided to allow the clasp 14 to float in the stereotactic arc groove and to position the steel ball in the diverting groove to provide the armrest with a moderate angle of rotation.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an armrest elevating structure of a chair, which mainly has a function of adjusting an armrest to a desired height.

[0002]

[Prior art]

 This allows the height of the armrests to be adjusted, as shown in FIGS. At the bottom of the T-shaped pillar 35, a seat 36 is provided to provide a place where a factory-shaped rod 37 is implanted, and a combination of a semicircular sliding seat 38 and a semicircular seat 41 is further provided. These are covered with a protective cylinder 42. A non-rotating gauge 39 and a track 40 are dug inside the semi-circular slide seat 38, and the factory-shaped rod 37 implanted on the seat 36 of the T-shaped column 35 by the above-described design. Achieves the purpose of adjusting the height of the armrest by means of the track 40 of the semicircular slide seat 38 and the detent rail 39.

[0003]

[Problems to be solved by the invention]

 In the case of a well-known structure, when trying to adjust the height, if it goes beyond the rear end, first pull up the upper part, then bring it to the bottom part, and start adjusting again. Also, since it is fixed with a non-rotating structure, it cannot be adjusted easily at any time, and it is relatively troublesome. In addition, when moving, everybody has an armrest and carries it on his or her head, but with the armrest, the armrest rises rapidly, and when it is carried, the chair descends quickly. Therefore, there is a danger of hitting a person's head, and the structure of the chair may be destroyed. Therefore, the present invention provides a safe chair armrest elevating structure in which the height of the armrest can be easily adjusted at any time.

[0004]

[Means for Solving the Problems] It is mainly composed of an adjusting body, a T-shaped pillar, a glue-shaped lump, a resilient piece, a large spring, a stereotactic cylinder, and the like. The column is implanted in the stereotactic cylinder, and the completed structure is implanted in the protective cylinder. At the upper end of the back of the protective cylinder, a stereotactic arc groove and a direction changing groove are provided, respectively, and a clasp is moved in the stereotactic arc groove to position the steel ball in the direction changing groove. Provides rotation at a moderate angle.

[0005]

[Embodiment of the invention]

 As shown in FIGS. 1 to 5, it mainly includes a T-shaped pillar 1, a stereotactic cylinder 8, an adjusting body 18, a resilient piece 24, a glue-shaped mass 23, and a large spring 30, which are chained by screws. ing.

A U-shaped groove 2 is dug at the center of the lower end of the T-shaped column 1. Are drilled or dug.

The screw hole 3 provides a place where the screw 19 is inserted into the hole 20 of the adjustment body 18 and screwed, and the vertical hole of the cross hole 4 is a place where the groove 22 of the adjustment body 18 is installed. Further, the horizontal hole provides a place where the tongue-shaped mass 23 is sandwiched and inserted into the groove 22.

A screw hole 21 is formed in the center of the adjusting body 18, and the screw hole 21 provides a place where the screw 26 is screwed after being inserted into the hole 25 of the elastic piece 24. Implants the T-shaped column 1 in the stereotactic column 8. By inserting a screw 31 into the lower hook 29 of the large spring 30 and implanting it into the screw hole 5 at the lower end of the T-shaped column 1, the upper hook 28 of the large spring 30 is located at the bottom of the adjusting body 18. It is hung on the convex block 27 and fixed.

In each of the clasp grooves 12 and the spring grooves 13 pierced at the upper end of the back of the stereotactic cylinder 8, a clasp 14 is inserted into the clasp groove 12, and a spring 15 is provided. And the steel ball 16 is buried in the spring groove 13, whereby the internal assembly is completed.

[0010] Finally, the completed structure is implanted in a protective cylinder 34, which is provided with a stereotactic arc groove 32 and a direction change groove 33 at the upper rear end of the protective cylinder 34, respectively. The gold 14 moves only in the stereotactic arc groove 32, and the rotation of the armrest is appropriately restricted. In addition, the direction changing groove 33 achieves a direction changing effect of the armrest by positioning the steel ball 16 therein.

[0011]

[Effect of the invention]

 According to the present invention, the altitude of the armrest can be adjusted accurately and quickly at any time, and since the armrest is firmly fixed, it can withstand transportation and impact.

[Brief description of the drawings]

FIG. 1 is a three-dimensional exploded view of the present invention.

FIG. 2 is a three-dimensional assembly diagram of the present invention.

FIG. 3 is a sectional view 1 of the present invention.

FIG. 4 is a sectional view 2 of the present invention.

FIG. 5 is a sectional view 3 of the present invention.

FIG. 6 is a sectional view 1 of a known structure.

FIG. 7 is a sectional view 2 of a known structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 T-shaped pillar 2 U-shaped groove 3 Screw hole 4 Cross hole 5 Screw hole 6 Screw hole 7 Screw hole 8 Stereotactic cylinder 9 Upper hole 10 Bottom hole 11 Positioning groove 12 Clasp groove 13 Spring groove 14 Clasp 15 Spring 16 Steel ball 17 Localization groove 18 Adjusting body 19 Screw 20 hole 21 Screw hole 22 Groove 23 Shining block 24 Elastic piece 25 Hole 26 Screw 27 Convex block 28 Upper hook 29 Lower hook 30 Large spring 31 Screw 32 Stereotactic arc groove 33 Direction change groove 34 Protection Cylinder 35 T-shaped column 36 Seat 37 Factory-shaped rod 38 Semi-circular sliding seat 39 Non-rotating rail 40 Track 41 Semi-circular seat 42 Protective cylinder

Claims (1)

[Utility model registration claims] 1. An armrest ascending and descending structure of a chair mainly composed of an adjusting body, a T-shaped column, a shingle-shaped mass, a resilient piece, a large spring, a stereotactic cylinder, and screws for screwing the same. Adjustment body having screw holes, grooves, and convex blocks, and a U-shaped groove is dug at the center position of the lower end, and a screw hole, a lateral hole, and a groove for the adjustment body are installed at the center in the order from top to bottom. A T-shaped pillar provided with a threaded hole for providing a place to be inserted and screwed into the hole of the adjusting body, and a T-shaped pillar provided between the groove and inserted into the horizontal hole An elastic piece having a hole inserted between a screw and a screw hole formed in the center of the adjusting body; and a screw hole being inserted into the screw hole at the lower end of the T-shaped pillar. A large spring having a lower hook to be inserted therein and an upper hook fixed by being hung on a convex block at the bottom of the adjusting body, and a spring groove in which the spring and the steel ball are buried are formed at the upper end of the back. And a stereotactic cylinder having a clasp groove for implanting a clasp; and implanting the T-shaped pillar in the stereotactic cylinder, implanting the completed structure in a protective cylinder, At the back upper end of the protection cylinder, a stereotactic arc groove and a direction change groove are provided, respectively, the clasp moves only in the stereotactic arc groove, and the direction change groove localizes the steel ball therein. A chair armrest elevating structure, characterized in that the armrest is provided with a rotation at an appropriate angle.