JP2596930Y2 - Chair cushion mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion mounting structure for a chair in which a backrest or a seat can be formed by mounting a cushion on a supporting substrate.

[0002]

2. Description of the Related Art Conventionally, in a chair in which a backrest portion or a seat portion can be formed by assembling a cushion body to a support-side substrate, the cushion body is assembled to the substrate by bolts or screws.

[0003]

[Problem to be Solved by the Invention] However, if such a mounting is performed using bolts or screws, a tool must be used, and the structure becomes complicated. It is troublesome and troublesome, and the use of bolts and screws is inferior in safety.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve such a problem and to further improve the cushioning property so that it can be suitably implemented. A plurality of through holes are formed in the peripheral portion of the inner shell on the rear surface side to be attached, and a rubber seat having a hole at the center is fitted to each through hole, and a hole in each rubber seat is fitted to the substrate. A plurality of engaging projections which can be removably fitted and have a large diameter pointed end at the tip are formed.

[0005]

Therefore, the cushion body can be quickly and easily assembled to form the backrest or the seat simply by inserting the large-diameter sharp end into the hole of each rubber seat and inserting each of the engagement projections. In addition, the cushioning property of the cushion body can be further improved by the rubber seat, and the large-diameter pointed end can be easily removed from the hole of the rubber seat. Can be quickly and easily removed.

[0006]

FIG. 5 is a perspective view of the whole chair, in which a seat D is mounted above a leg 5 having five casters 4 at the lower part, and a board extending to the rear upper part of the seat D. The cushion body A is attached to the front side of the seat B to form a backrest portion. The substrate B has an inclined lower attachment surface 6 that can be attached to the rear lower surface of the seat D, and an upper portion of the attachment surface 6. Is formed so as to become a wide supporting surface 8 via the bending surface 7,
The inner shell a on the rear surface side where the cushion body A to which the upholstery cloth 9 is attached is assembled with through holes 1 at five locations on the periphery, and a projection 10 is protruded at the center. It has a hole 2a at the center and a circumferential groove 2b on the outer circumference.
The circumferential groove 2b of the rubber seat 2 having the shape of a frame is fitted in each of the through holes, and a cross-shaped support piece 11 is provided at each of five locations around the support surface 8 of the substrate B. At the center of each support piece 11, there is provided an engagement projection 3 which can be removably inserted into the hole 2a of the rubber seat 2 and has a large diameter tip 3a at the tip. Form and configure.

The seat portion D can be constructed by assembling the cushion body A to the substrate B as in the above embodiment.

Accordingly, when the large-diameter sharp ends 3a of the engaging projections 3 are inserted into the holes 2a of the rubber seats 2, as shown in FIG. The cushioning properties are further improved by the seat 2, and the cushion body A can be attached.
When the cushion body A is damaged or the upholstery 9 is torn or soiled and the cushion body A is replaced, the cushion body A is separated from the substrate B side so that the pointed end 3a is attached to the rubber seat 2.
And can be easily removed from the hole 2a.

[0009]

[Effects of the Invention] As described above, the present invention is applicable to the hole 2
By simply inserting the large-diameter pointed end 3a into each of the engagement projections 3 and inserting each of the engagement projections 3, the cushion body A can be quickly and easily assembled to form the backrest portion C or the seat portion D. The cushioning property of the cushion body A can be further improved by the seat 2, and the large-diameter tip 3a can be easily removed from the inside of the hole 2a of the rubber seat 2, so that the cushion body A can be quickly and easily. It is possible to easily replace the cushion body A by attaching and detaching it without tools, and it is preferable to use a simple structure that is safe without using bolts and screws as in the conventional case. It has features that can be implemented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing three parts of a backrest substrate B, a rubber seat 2, and a cushion body A, which are main parts of the present invention.

FIG. 2 is a perspective view showing an engagement projection 3 on a substrate B with a rubber seat fitted around a fitting hole of a shell body of a back cushion;
FIG.

FIG. 3 is a rear view of the backrest cushion body having rubber seats attached to various parts of the backrest.

FIG. 4 is a perspective view of a backrest body provided with engaging projections 3 at required locations on the backrest surface.

FIG. 5 is a sectional view showing an attached state which is a main part of the present invention.

FIG. 6 is a perspective view showing the entire chair.

[Explanation of symbols]

 Reference Signs List A cushion body B board C backrest D seat a a inner shell 1 through hole 2a hole 2 rubber seat 3a pointed end 3 engaging projection

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47C 7/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A chair in which a cushion body A is assembled to a support-side substrate B to form a backrest portion C or a seat portion D, wherein the cushion body A is a rear surface side of the inner shell a facing the substrate B. Have a plurality of through holes 1 formed in the peripheral portion thereof, and each of the through holes 1 has a fitting insertion hole formed at the center and a fitting insertion hole at the center as a member to be fitted into the fitting insertion hole. On the side facing the substrate B, a large-diameter disc 2 is formed, and a circumferential groove 2b is formed on the outer peripheral surface thereof. On the side of the support surface 8, a support piece 11 having a cross shape is protrudingly provided at a required portion in a peripheral portion thereof.
Engagement projections 3a each having a large-diameter pointed end 3a at the tip are respectively formed and fitted into the through holes of the plurality of rubber pieces 2 provided on the rear inner shell a of the cushion body A. And a cushion body mounting structure for a chair in which a cushion body A is attached to a substrate B, such as a backrest, with a drapery.