JPS637097Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a chair in which the outer material forming the seat and backrest is detachable.

Conventionally, the outer fabric of the seat and back of a chair has been attached integrally to the main body, or has been sewn integrally to a mat or the like mounted on the frame of the main body. However, such chairs require a lot of time and effort to manufacture, and they also have drawbacks such as the fabric becoming dirty due to long-term use, and the chair being unable to be easily replaced even if one wishes to change its appearance.

This idea was devised in view of the above circumstances,
It is an object of the present invention to provide a chair whose outer material can be easily attached and detached and which is compatible.

A description will be given below based on the illustrated embodiment. Reference numeral 1 indicates the frame of the main body of the chair, and reference numeral 2 indicates the seat attached to the main body and the outer material forming the backrest portion.

The main body 1 is made of steel, a frame 3a surrounding the seat 3 on three sides is formed of a flat hollow pipe, and a rear frame 3b is formed of a steel bar. This frame 3a, 3b
A punching metal 3c is used as a mounting seat 3 on the inside of the holder. A leg 4 made of a flat hollow pipe is attached to the seat 3, and a horizontal leg 5 made of a steel bar is straddled over the upper part between the front legs 4, 4. Also, hind legs 4,
A horizontal rail 6 made of steel bars is also straddled over the upper part of the 4 spaces. The backrest 7 has a frame formed by bending and extending the frame 3a of the seat 3 upward.

The outer material 2 is made of fabric, leather, synthetic resin, etc., and has a rectangular seat 8 in the center for covering the seat 3 of the main body 1 and a rectangular seat 8 for covering the backrest 7 in the rear part. forming a backrest portion 9;
Each of the seat portion 8 and the backrest portion 9 is folded back.

That is, a substantially rectangular seat front flap 10 is provided continuously forward from the front edge 8a of the seat 8, and the distal end side edge of the seat front flap 10 is cut out in a triangular shape, and a side edge is formed on the surface thereof. A velvet-like fastener 11 is attached along the ridge so as to cover about two-thirds of the back surface of the seat 3.
and left and right side edge portions 8 at the front of the seat portion 8;
b, 8b, and the seat front folding 10 that is continuous with this.
Some portions of the left and right side edges 10a are sewn in advance to form a bag-shaped portion 10b, which is folded back from the front side edge 8a of the seat portion. Left and right side edges 8b of the seat portion 3,
Trapezoidal seat on the left and right from 8b left and right folded 1
2 and 12 are successively protruded. The left and right flaps 12, 12 of the seat part are each formed to be slightly longer than half the width of the seat 3, and a velvet-like fastener 11 is attached to the tip of the seat part.
2 is attached to its front surface, and the other fold is attached to its back surface. Both velvet-like fasteners 11, 11 are detachably engaged with each other on the back surface of the seat 3.

The backrest part 9 is provided continuously to the seat part 8, and one part of a slide fastener 13 is attached along the boundary line between the backrest part 9 and the seat part 8, so as to mesh with the other part of the slide fastener 13, which will be described later. It's getting old. The backrest portion 9 has a length that is approximately twice the height dimension of the backrest 7 of the main body 1, and is composed of a portion 9a that covers both the front and back surfaces of the backrest 7, and a portion 9b that is folded back to cover only the back surface. A substantially triangular folded backrest 14 is continuously provided at the rear of this portion 9b. And part 9a is folded 9 on the left and right side.
a′, 9a″ are protruded, and these folded backs 9a′, 9
The tips of a' are fixed together in advance, forming a double cylindrical part with an open top and bottom. The other part of the slide fastener 13 is attached to the back surface of the backrest flap 14 provided continuously in the part 9b in parallel with the width direction, and is designed to mesh with one part of the slide fastener 13 during use. Further, a velvet-like fastener 15 is attached to the back surface of the tip along the side edge.

Reference numeral 16 indicates an inner core to be attached to the backrest 7. This inner core 16 is made of fabric into a bag shape and is formed to have approximately the same width and height as the backrest 7, and a slide fastener 17 is attached to the lower end so that it can be opened and closed. A plate-shaped elastic body 18 made of polyurethane foam or the like is inserted inside.

The outer material 2 and the core 16 described above are detachably attached to the main body 1. That is, the center core 16 is formed by opening the fastener 17 at the lower end, inserting it into the frame of the backrest 7 from above and covering the horizontal leg 6, closing the slide fastener 17, and covering the backrest 7.

The backrest portion 9 of the outer material 2 further covers the surface of the core 16 in the backrest 7, and a portion 9a covering both the front and back surfaces is inserted into the backrest 7 to which the core 16 is attached. Then, the part 9b covering the back surface is folded back from the top end of the backrest 7 toward the back surface, and the tip backrest folding 14 further covers the backrest 7.
The lower end portion of the seat 3 covers the horizontal arm 6 of the main body 1.
The other part of the fastener 13 attached to the backrest folding 14 and the one part of the fastener 13 attached to the seat part 8 are folded back on the back side of the main body 1.
The crosspiece 6 and the seat 3 are engaged at a gap 19 at the rear edge of the seat 3.

In the seat part 8 of the outer material 2, the bag-shaped part 10b at the front part is inserted into the front edge part of the seat 3, and the left and right folds 12, 12 of the seat part protruding to the left and right are folded back to the back surface of the seat 3. The left and right directions are fixed by engaging the velvet fasteners 11, 11. Further, the seat front flap 10 protruding from the front edge of the seat 8 is folded back toward the back of the seat 3, and the velvet-like fastener 11 of the seat front flap 10 is folded back toward the back of the seat 3.
and the velvet-like fastener 15 of the backrest folding 14 are engaged and fixed in the front and rear directions, and the outer material 2 covers the frame of the main body 1 and is detachably attached. Note that a plate-shaped elastic body 20 such as polyurethane foam is placed between the seat 3 and the outer material 2 to improve sitting comfort.

This invention has the structure described above, and anyone can easily attach or detach the outer material to the chair body. It is possible to select and install a desired outer material to remove stains due to long-term use or for a makeover.

Moreover, since the seat and backrest portions can be covered integrally, the installation work can be done easily and quickly, and the seat is comfortable and looks good. Furthermore, one part of the fastener attached to the boundary between the seat and the backrest is interlocked with the other part of the fastener attached to the fold of the backrest, using the crossbar that spans between the rear legs, so that the front and back directions are It can always maintain a constant tension without sagging. In addition, since it is fixed with a velvet-like fastener, the tension of the outer material can be adjusted as appropriate.

[Brief explanation of the drawing]

The drawing shows an embodiment of this invention.
The figure is a partially exploded perspective view, Figure 2 is a perspective view showing the frame of the main body, Figure 3 is a developed view showing the back of the outer material, and Figure 4 is a perspective view showing the back of the outer material.
The figure is a bottom view, and FIG. 5 is a partial vertical sectional view. 1...chair body, 2...outer material, 3...seat, 4...
...Legs, 5, 6...Horizontal, 7...Backrest, 8...
Seat part, 9...Backrest part, 10...Front fold of seat part, 11...Velvet-like fastener, 12...
Seat left and right folds, 13... Slide fastener, 14... Backrest fold, 15... Velvet-like fastener, 16... Center core, 17... Slide fastener, 18... Elastic body, 19... Gap,
20...Elastic body.

Claims (1)

[Scope of utility model registration request] In a chair, the outer material is removably attached to the frame of the chair body, which consists of a seat, a backrest, and front and rear legs, and a crossbar is straddled between the upper parts of the rear legs. A backrest part is provided that covers the backrest continuously from the seat part, and a front flap of the seat is provided on the front edge of the seat, and left and right flaps of the seat are protruded from the left and right side edges, and velvet is attached to the tip of each flap. A shaped fastener is attached, one part of the slide fastener is attached along the boundary line between the seat and the backrest, and the backrest has a cylindrical double part that opens up and down and a continuous part that covers the back of the backrest. And the tip part is provided with a backrest fold, and this backrest fold is attached with a velvet-like fastener and the other part of the slide fastener that engages with the slide fastener, and the backrest part of the outer material has a cylindrical part inserted into the backrest of the main body. The folded backrest is further covered with the backrest, and the folded backrest is arranged on the backside of the seat, and one part and the other part of the slide fastener are engaged in the gap between the seat and the siderest,
Each flap of the seat is folded back to the back of the seat, the left and right flaps of the seat are fixed to each other with a velvet-like fastener, and the front fold of the seat and the backrest are fixed with a velvet-like fastener.