JPH0721145Y2 - Chair seat - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a seat plate of a chair, and more particularly to a seat plate of a chair with a backrest.

[0002]

2. Description of the Related Art Conventionally, when a large number of chairs with a backrest are stored and transported in a completed state, a large space is required. Therefore, a seat plate, legs and Store the backrest individually in a compact state,
Various chairs with a backrest have been proposed which can be transported and easily assembled at the destination.

[0003] The present applicant also previously, as shown in FIG. 9, a cylindrical leg portion such connecting portions the upper and lower ends are opened to the peripheral side surface of the seat plate (51) and (52) is provided, the connecting portion ( It proposes a chair that can be easily assembled by inserting the ends of the lever rod (53) and the backrest support rod (54) into the inside of (52) (see Japanese Utility Model Publication No. 63-22926). However, the leg rod (53) and the backrest support rod (54)
In order to stably hold the fitting, it is necessary to make the fitting part (53a) at the upper end of the leg rod (53) and the fitting part (54a) at the lower end of the backrest support rod (54) as long as possible, and the connecting part (52) also corresponds thereto. Must be as long as you want. Particularly, when the leg rod (53) and the backrest support rod (54) are fitted on the upper and lower sides of the connecting portion (52), the connecting portion (52) can be attached to the seat plate by making the thickness of the seat plate a general thickness. There is no choice but to project below or above (51). Then, when stacking a large number of seat plates, there is a problem in that the projecting portion becomes an obstacle and becomes bulky during storage and transportation.

The present invention was made in order to solve the above-mentioned problems, and not only allows the chair to be easily assembled, but also allows the chair to be stacked compactly during storage and transportation in a disassembled state. An object of the present invention is to provide a seat plate of a chair that can hold the leg rod and the backrest rod in a stable manner.

[0005]

In order to achieve the above-mentioned object, the chair seat plate according to the present invention has a core plate, and a foam having a skin layer on the entire surface of the core plate. and a synthetic resin layer, the peripheral side surface of the core plate, the fitting convex is fitted and connected leg pipe, the pipe end such back support pipe
And / or fitting recesses
The pipes are provided in a radial arrangement with a predetermined interval in the circumferential direction, and the pipe connection is provided on the circumferential side surface of the foamed synthetic resin layer.
The pipe insertion hole is provided at a position corresponding to the connecting portion .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

The seat plate (A) according to the present invention comprises a core plate (1)
And a foamed synthetic resin layer (2) covering the core plate (1) entirely.

The core plate (1) is made of aluminum alloy die-cast, and is formed in the shape of a wheel of an automobile, and has a plurality of pipe connecting portions, that is, leg pipes (1) at its peripheral portion.
4) and four fitting protrusions to be fitted (3) (3) (3)
(3) and the four fitting recesses (4), (4), (4), and (4) that fit with the backrest support pipe (13) are integrally formed in an alternating arrangement and a radial arrangement at equal intervals . It is provided.

[0009] That is, four concave portions in Oite outer peripheral edge 4 equally positioned in the circumferential direction of the core plate (1) (5) (5) (5) (5) is provided as shown in FIG. 2 , The recess (5)
(5) (5) fitting convex portion of the rod-shaped fitting on the end of the leg pipe (14) to the inner back portion of (5) (3) (3) (3) (3) is projected radially There is. The fitting protrusions (3) (3)
(3) (3) is a screw having a plurality of recesses (6), (6), (6) on its upper surface as shown in FIG. 1 and an internal thread portion on the inner surface on the lower surface of the middle portion in the length direction. A hole (7) is provided. On the other hand, fitting the end portion of the peripheral each fitting protrusion in the circumferential direction of the side surface (3) opening towards the outside back support pipe at a position between (13) of the core plate (1) is fitted
Mating recesses (4) (4) (4) (4) are provided, and
A screw hole (8) having a female screw portion on the inner surface is provided on the lower surface of the intermediate portion in the longitudinal direction of each fitting concave portion (4) (4) (4) (4).

[0010] synthetic resin foam layer (2) is intended to synthetic resin such as foamed polyurethane foamed molding having a skin layer (2b) on the surface, the core plate (1) and entirely covered The entire shape of the seat plate (A) is disc-shaped.
(9), the fitting convex portion in the peripheral side surface of the foamed synthetic resin layer (2) (3) (3) (3) (3) and the fitting recesses (4) (4) (4) (4) It is a pipe insertion hole provided at a position corresponding to. As shown in FIGS. 5 and 6, a cap (10) is fitted into the pipe insertion hole (9) in order to maintain a good appearance of the chair when the pipe is not inserted. Moreover, the fitting convex portion of the lower surface of the foamed synthetic resin layer as shown in FIGS. 3 and 4 (2) (3) (3)
(3) The screw insertion hole (11) is provided at a position corresponding to the screw holes (7) and (8) of the fitting recesses (4), (4), (4) and (4).
……… is provided.

5 and 6 show a disassembled state and a completed assembled state of the chair using the seat plate (A). When storing and transporting the chair before assembling, many chairs are as shown in FIG. In a disassembled state, a large number of seat plates (A) are stacked,
The backrest (B) and the legs (C) are bundled and stored and transported. The chair backrest (B) shown in FIG. 5 includes a backrest portion (12) formed of a semi-circular shape such as wood, and a backrest support pipe (13) fixed to the central portion of the lower surface and the left and right end portions in a hanging shape. (13) (13)
And a horizontal bent portion (13a) is formed at the lower end of each backrest support pipe (13).
The a) can be fitted into the fitting recess (4) of the core plate (1). Also, the leg (C) has four leg pipes (1
4) (14) (14) (14), each leg pipe (14) has a horizontal bent portion (14a) formed at the upper end,
The bent portions (14a) are fitted to the fitting protrusions (3) of the core plate (1).
It is made possible to insert.

When assembling the chair from such a disassembled state, first, the upper end bent portion (14a) of each leg pipe (14) is located at a position corresponding to the fitting convex portion (3). is inserted into the pipe insertion holes of the layer (2) (9), the internal causes fitted fitting convex portion (3) to the upper bent portion (14a), the lower surface of the screw insertion hole of the foamed synthetic resin layer (2) ( The screw (15) inserted from 11) is screwed into the female screw portion of the fitting convex portion (3) through the screw hole at the corresponding position of the leg pipe bent portion (14a) to fix the leg pipe (14). Next, the lower end bent portion (13a) of each backrest support pipe (13) is inserted into the pipe insertion hole (9) of the foam synthetic resin layer (2) at the position corresponding to the fitting recess (4), and fitted.
A screw (1) fitted into the fitting recess (4) and inserted from the screw hole (11) in the lower surface of the foam synthetic resin layer (2).
Assembling this chair by screwing 5) into the female screw portion of the fitting recess (4) and the female screw portion at the corresponding position of the backrest support pipe bent portion (13a) to fix the backrest support pipe (13). Is completed. The chair shown in FIG. 7 is a combination of the seat plate (A) and a backrest (D) having a different shape from the backrest (C) shown in FIG. The backrest (D) shown in FIG. 7 is composed of a backrest portion (16) bent in a cutout shape made of wood and four backrest support pipes (17) (17) (18) (18). this backrest support pipe (17) is secured obliquely downward in the circumferential direction of the intermediate lower surface of the backrest (16), the lower end bent portion (not shown) is fitted concave <br/> the core plate (1) It is fitted in the part (4). Further, the other two backrest support pipes (18) (18) are fixed inwardly to the left and right side surfaces of both ends of the backrest portion (16), and their tip portions (not shown) are attached to the core plate (1). It is fitted in the fitting recess (4). And each back support pipe (17) (17)
(18) The tip of the screw inserted from the lower surface of the seat plate (A) is in contact with the fitting portion of (18), and the configuration of the legs is similar to that of the chair shown in FIG. FIG. 8 shows a chair for two persons, in which two seat plates (A) are used, and these two seat plates (A) (A) are connected by a connecting pipe (E). The connecting pipe (E) is composed of a straight tubular main body (19) and a leg (20) depending on the lower surface of the intermediate portion in the longitudinal direction of the main body (19). both ends of) is fitted to the fitting convex portion of each seat plate (a) (a) (3 ) (3). Therefore, the leg pipe (14) is fitted into each of the remaining six fitting projections (3) of each seat plate (A) (A). As the backrest (D), the same backrest (D) (D) as the backrest (D) used in the chair of FIG. 7 is used, and it is connected to the seat plate (A).

In the seat plate (A) of the above embodiment,
Although the fitting convex portion to the core plate (1) (3) and the fitting recesses (4) are provided, for example, the back support pipe (13) and that of the same diameter as the leg pipe (14), the core plate fitting the core plate (1) may be provided engaging convex portion only (3), or conversely to (1)
It is also possible to provide only the fitting recess (4) and to make the leg pipe (14) with an outer diameter corresponding thereto.

[0014]

As described above, the seat plate (A) of the chair according to the present invention comprises the core plate (1) and the foamed synthetic resin layer (2) covering the core plate (1) entirely. Since it is made of, it is possible to obtain a good sitting comfort with rich cushioning property, and also, on the peripheral side surface of the core plate (1), pipe ends such as leg pipes (14), backrest support pipes (13), etc. A plurality of pipe connecting portions (3) (4) ... Fitting the parts are provided at predetermined intervals, and the pipe connecting portions (3) (4) on the peripheral side surface of the foamed synthetic resin layer (2).
Since the pipe insertion hole (9) is provided at a position corresponding to ... , the seat plate (A) can be easily connected to the leg pipe (14), the backrest support pipe (13), etc. Can be easily assembled. Moreover,
The backrest support pipes (13), (17) and (18) of the backrests (B) and (D) having different shapes are attached to the pie of the seat plate (A).
The shape of the backrest can be arbitrarily selected and applied to one type of seat plate (A) by making the backrests (B) and (D) different from each other by being connectable to the connecting portions (3) and (4). It is possible to assemble chairs of different types and to provide a versatile seat plate.

Further, since only one type of die is required for producing the seat plate (A), the manufacturing cost can be greatly reduced.

Further, the connection is made shall be performed inside a seat plate (A) Rutotomoni leg pipe or the like seat plate (A)
Since it is designed to project from the peripheral side surface of the
Comfortable to sit without exposing the members related to the surface
It has no effect. Also, the external shape of the seat plate (A)
The pipe connecting portions (3), (4), ... Can be made as long as possible without changing the length to lengthen the connecting portion. In the assembled state, not only the appearance is good, but also the extremely strong assembly. The state can be realized. further,
Since the seat plate (A) can be formed into a flat disc shape, a large number of seat plates (A) can be easily stacked, which is convenient for storage and transportation in a disassembled state before assembly. Can provide things.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a seat plate of a chair according to the present invention with a part cut away.

FIG. 2 is a bottom view of the core plate of the seat plate of the chair according to the present invention.

3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an exploded perspective view of a chair using the seat plate of the chair according to the present invention.

6 is an overall perspective view of the chair of FIG. 5 in a completed assembled state.

FIG. 7 shows another chair using the seat plate of the chair according to the present invention.
It is a perspective view .

FIG. 8 is an overall perspective view of a two-seater chair using the seat plate of the chair according to the present invention.

FIG. 9 is a perspective view of a conventional chair in a disassembled state.

[Explanation of symbols]

A ... seat plate 1 ... core plate 2 ... foamed synthetic resin layer 2b ... skin layer 3 ... fitting protrusions 4 ... fitting recess 9 ... pipe insertion holes 13,17,18 ... back support pipe 14 ... leg pipe

Claims (1)

[Scope of utility model registration request] 1. A core plate and a foamed synthetic resin layer having a skin layer on the entire surface of the core plate and having a skin layer on the surface thereof, and a pipe end such as a leg pipe or a backrest support pipe is provided on a peripheral side surface of the core plate. From the fitting convex part and / or the fitting concave part that is fitted and connected to the section
A plurality of pipe connecting parts are arranged at predetermined intervals in the circumferential direction.
A seat plate for a chair, which is provided in a radial arrangement and is provided with a pipe insertion hole at a position corresponding to the pipe connecting portion on the peripheral side surface of the foamed synthetic resin layer.