JP3062738U - Chair armrest structure - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] In any sitting posture, the elbow can be placed on the armrest,
The position and length of the armrest can be quickly and easily adjusted. SOLUTION: A hexagonal convex portion protruding from a fixed seat 1 is fitted into an oblong hole provided at a center position of a sliding seat 2 fixed to a bottom end of a cylindrical armrest portion of a circular cap 21 and a circular cap 21, an elastic gasket 22.
Is inserted and further fixed by the bracket 23, so that the sliding seat 2 can be moved forward and backward on the fixed seat 1, or can be rotated right and left.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an armrest of a chair, and more particularly, to a structure of a sliding armrest in which a rectangular box-shaped sliding seat can be set at an arbitrary position to move back and forth, left and right on a fixed seat.

[0002]

[Prior art]

 The armrest of a conventional chair has a structure that is fixed by screws and cannot move. Therefore, when sitting at the front of the chair, it is not possible to hold your hands, and when using or typing on the computer, you must keep your hands on the keyboard, so you can use your elbows for a long time. May remain floating in the air, causing pain in the hands, preventing rapid movements and possibly reducing work efficiency.

[0003]

[Problems to be solved by the invention]

 In order to solve the above-mentioned object, the object of the present invention is to improve the drawbacks of the conventional technology, and to be able to place the elbow in any sitting posture, so that the hand can be moved to prevent pain in the hand due to computer input work etc. An object of the present invention is to provide a structure of a chair armrest.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the structure of the sliding armrest of the chair according to the present invention mainly comprises a fixed seat and a sliding seat. The fixed plug is inserted into the elastic gasket and the bracket to connect the fixed seat and the sliding seat. The hexagonal protrusions provided on the fixed seat allow the elliptical hole in the sliding seat to move back and forth on the fixed seat, and to turn left and right within the fixed position. The elbow can be adjusted freely.

[0005]

[Embodiment of the invention]

 As shown in FIGS. 1, 2 and 5, the present invention mainly comprises a fixing plate 1 and a sliding seat 2, and a fixing plug 3 is inserted into the fixing seat 1 from below a through hole 4 formed in the fixing seat 1. 1 protrudes from the hexagonal projection 20. The fixed seat 1 is placed on the top surface 6 of the armrest support 5, and a screw 7 is inserted through a through hole 9 formed in the top surface 6 and inserted into a circular hole formed at each end of the fixed seat 1. In each of the holes, a nut 8 is embedded and a screw 7 is screwed. Also, after the spring 10 and the steel ball 11 are fitted into the concave cavities 14 provided on the left and right of the fixed seat 1, the fixing pieces 12 corresponding to the concave grooves 17 on the fixed seat 11 are covered from above, and two screws 13 are provided. Is screwed into the screw hole 15 of the concave groove 17 through the through holes 18 on both sides of the fixing piece 12 to fix the fixing piece 12. The diameter of the through hole 16 at the center of the fixing piece 12 is smaller than that of the steel ball 11, and two-thirds of the area of the steel ball 16 projects outside. The slide seat 2 has a rectangular shape, three sets of positioning holes 29 corresponding to the steel balls 11 are opened on the left and right sides, two cylinders are extended at both front and rear ends, and a through hole 27 is formed at the center of the cylinder. With these, the screw 26 passes through the through hole 27 and is screwed to the armrest 25. To assemble, first, the fixed seat 1 and the sliding seat 2 are connected, and further, both are mounted on the armrest support 5 and the whole structure is fixed with the screws 7, so that all the assembly is completed, and it is very easy and simple. is there.

Since the degree of latitude of the oval hole 19 formed in the center of the slide seat 2 is equal to the degree of latitude of the hexagonal projection 20 protruding from the fixed seat 1, the two correspond and the slide seat 2 is fixed to the fixed seat 1. 1 and fitted into the fixing plug 3 in the order of the circular cap 21 and the elastic gasket 22. Further, the bracket 23 is pressed from above, and both sides of the elastic gasket 22 are supported by the inner edge 24 of the circular cap 21 in an expanded state. The claws 30 on the bracket 23 (this type of bracket is generally available) are firmly gripped by the fixing plug 3 and fitted, causing the elastic gasket 22 to suppress the circular cap 21 and thereby the sliding seat 2. The fixed seat 1 and the fixed seat 1 are combined, and the armrest 25 is fitted on the slide seat 2, and the screw 26 penetrates through the through hole 27 of the slide seat 2 from below and is screwed into the armrest 25. Since the oblong hole 19 of the sliding seat 2 has an elongated shape, the circular cap 21 presses the sliding seat 2 when it corresponds to the hexagonal convex portion 20 of the fixed seat 1, but does not completely fix the sliding seat 2. Therefore, the sliding seat 2 moves back and forth on the fixed seat 1 (as shown in FIGS. 3 and 4) while taking various postures, and further, the relative sides of the hexagonal convex portions 20 provided on the fixed seat 1 are set. Since the relative slope 28 is equal to or slightly smaller than the latitude of the oblong hole 19, the maximum movement angle (as shown in FIGS. 6 and 7) is limited by the lateral movement of the slide seat 2.

When the computer is used for a long time, the hand is kept on the keyboard for a long time. At this time, the sliding seat 2 is adjusted according to the distance between the hand and the keyboard, and the elbow is placed on the armrest. It can prevent head pain and prevent this kind of occupational disease. As shown in Fig. 5, when you want to return to the original position after adjusting the armrest, or when you want to adjust it to a more comfortable length and position, move it back or forward, and By sliding the three sets of moving through-holes 29 near the steel ball 11 on the fixed seat 1 and abutting the steel ball 11 on the sliding seat 2 by the tension of the spring 10, three-step front-rear position adjustment is possible. And multi-stage left and right rotation can be performed.

[0008]

[Effect of the invention]

 The present invention has a structure in which the armrest can be moved back and forth and pivoted to the left and right. The elbow can be placed even during computer input operation, and the position and length of the armrest can be easily and quickly adjusted. The chair can be provided with a swingable armrest structure.

[Brief description of the drawings]

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

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

FIG. 3 is a cross-sectional view illustrating a forward movement of the slide seat according to the present invention;

FIG. 4 is a sectional view illustrating a rearward movement mode of the sliding seat according to the present invention;

FIG. 5 is a right side sectional view of the present invention.

FIG. 6 is a bird's-eye view for explaining a mode of right rotation of the sliding seat according to the present invention;

FIG. 7 is a bird's-eye view for explaining a left-rotating mode of the sliding seat according to the present invention;

DESCRIPTION OF SYMBOLS 1 Fixed seat 2 Sliding seat 3 Fixed stopper 4 Through hole 5 Armrest support 6 Top surface 7 Screw 8 Nut 9 Through hole 10 Spring 11 Steel ball 12 Fixing piece 13 Screw 14 Concave hole 15 Screw hole 16 Through hole 17 Concave groove 18 Through hole 19 Oval hole 20 Hexagonal protrusion 21 Circular cap 22 Elastic gasket 23 Bracket 24 Inner edge 25 Armrest 26 Screw 27 Cylindrical through hole 28 Relative slope 29 Orientation hole 30 Claw hook

Claims (2)

[Utility model registration claims] A sliding seat having a rectangular box shape is provided with a cylinder extending at both front and rear ends, a screw penetrating through a through hole formed in the center of the cylinder, and a sliding seat being fixed to a bottom end of an armrest. An oval hole with an appropriate length of opening is fitted with a hexagonal projection projecting from the fixing seat, the fixing plug penetrates a through hole in the center of the hexagonal projection, and the sliding seat box If it is projected from the body, a circular cap, an elastic gasket is inserted and further fixed by a bracket, the sliding seat can be moved up and down on the fixed seat, and the angle of right and left rotation can be limited. The structure of the chair's reciprocating armrest. 2. A groove provided at both left and right ends of the fixed seat has a concave cavity at the center, on which a spring and a steel ball are placed in this order, which is covered with a fixing piece and screwed with a screw. , About two-thirds of the area of the steel ball protrudes to the outside, and 3
Characterized in that one of the sets of stereotactic holes fits into the steel ball,
The structure of the reciprocating armrest of the chair according to claim 1.