JP3150549B2 - Assembling chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly type chair which can be easily disassembled and assembled.

[0002]

2. Description of the Related Art There are known knockdown chairs which can be assembled and disassembled by a purchaser. According to such an assembly type chair, not only can the purchaser easily take it back from the store, but also it can be disassembled and stored when not in use, and has advantages such as convenience.

[0003] Conventionally, such a prefabricated chair is known from Japanese Utility Model Publication No. 47-29767. The knockdown chair shown in this publication has a cushion.
Both ends of the cushion in the width direction are connected to the middle portions in the height direction of the pair of armrests by supporting pieces. At the rear of the armrest, a back quilt is provided in an upright position in which the upper end is inclined rearward at a predetermined angle, and both ends in the width direction of the lower end are connected to the inner surface lower ends of the pair of armrests. Connected by a fixing member. That is, the chair having the above configuration can be disassembled into a cushion, an armrest, and a back quilt.

By the way, according to the chair having such a configuration, only the lower end of the spine futon is connected to the armrest. Therefore, when a user sitting on the cushion is leaning on the spine futon, the load concentrates on the lower end of the spine futon, and the fixing member connecting the lower ends and the fixing member are engaged. In some cases, the combined bolt may be damaged, and the strength may not be sufficient.

In order to obtain the mounting strength of the back sliding member,
Not only the lower end but also the upper part may be connected to the armrest using a predetermined fixing member. In that case, it is conceivable that the front or back surface of the spinning member is connected to the armrest by the fixing member.

However, in such a configuration, the fixing member is exposed on the upper front side or the rear side of the spinning member, so that the appearance may be greatly reduced. In particular, if it is exposed on the front side, it may hit the user leaning on the back sliding member,
It becomes a problem.

[0007]

As described above, the conventional assembling chair has a configuration in which only the lower end of the backing member (back member) is connected to the armrest, so that it can be seated on the cushion. When the user leans on the spinning member, stress may be concentrated on the lower end of the spinning member, and the lower end may be damaged.

In order to prevent stress from concentrating on the lower end of the backsliding member, the upper part of the backsliding member is also connected to the armrest body. Since it is exposed on the side or the back side, the appearance may be deteriorated.

The present invention has been made based on the above circumstances, and an object of the present invention is to connect not only the lower part but also the upper part of the back member to the side member so as to improve the connection strength, and at that time, to improve the connection strength of the back member. An object of the present invention is to provide an assembling chair in which an upper connecting means for connecting the upper parts is not exposed to the outside and the connecting operation is facilitated.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pair of side members, a connecting member for connecting front end sides of these side members at a predetermined interval, and a back surface formed in a hollow box shape. A back member that is opened and closed by a back member that is openably and closably provided and that is provided in an upright state at a rear end side of the side member; a lower connecting unit that connects a lower portion of the back member to the side member; An upper connecting means for connecting upper portions of both sides of the member to the side member, and a floor member held at a predetermined height between the pair of side members, wherein the lower connecting means and the upper connecting means At least the upper connecting means has a structure for connecting both side portions of the back member to the side member from the inside thereof.

[0011]

According to the above construction, the lower part of the back member is connected to the side member by the lower connecting means, and the upper part is connected by the upper connecting means. Therefore, when the user leans on the back member, stress is applied to the lower part. Concentration can be avoided, and the back member of the back member is provided to be openable and closable,
By opening the back member, not only is it easy to connect the side portion of the back member to the side member by the upper connecting means, but also the upper connecting means is not exposed to the outside.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention. The first embodiment of the present invention comprises a pair of side members 1. Each side member 1 has a rectangular plate shape, and legs 2 are provided at both ends in the front-rear direction of the lower end surface. Further, on the inner surface of the side member 1, a front receiving member 3 is provided at a lower end portion on a front end side, and a rear receiving member 4 is provided at a lower end portion on a rear end side.

As shown in FIG. 4 (a), each of the receiving members 3, 4 is a plate 3a attached and fixed to the side member 1.
4a, a pair of headed pins 3b, 4b and plates 3a, 4a projecting vertically from each plate.
And a plurality of mounting holes 3c, 4c formed in the peripheral portion of the rim. A nut 10 is embedded in the upper rear of the rear receiving member 4.

A front member 7 is detachably connected to the front receiving members 3 of the pair of side members 1. That is, the front member 7 has a strip shape, and the front connecting members 8 are attached to both ends of the inner surface thereof. As shown in FIG. 4, the front connecting member 8 is made of an angle material, and has a mounting hole 8a formed on one side for screwing to the front member 7, and a pair of locking holes 8b on the other side. It is bored vertically apart. The locking hole 8b is formed in a tapered shape such that the lower end has a larger diameter than the heads of the pins 3b and 4b, and has a smaller diameter as it goes upward. A front receiving bar 9 is attached to the inner surface of the front member 7 along the horizontal direction over the entire length in the width direction above the front connecting member 8.

The front member 7 engages the locking holes 8b of the pair of front connecting members 8 with the pins 3b of the front receiving members 3 of the pair of side members 1 which are spaced apart in parallel at a predetermined interval. Thus, they are detachably connected.

A lower end of a back member 11 is detachably connected to the rear receiving members 4 of the pair of side members 1. That is, the back member 11 has the rectangular frame 12. The lower half of the front surface of the frame body 12 in the front-rear direction is closed by a front plate 13, and the rear surface is closed by a back member 14 that can be opened and closed. The back member 14 is made of cloth as shown in FIG.
The first velvet fastener 14c as a fastening means is provided on the inner surface at the lower end and at both inner surfaces (not shown) of the frame body 12 over the entire length in the width direction. The first velvet fastener 14c is engaged with a second velvet fastener 14d provided on the lower end face and both end faces (not shown) of the frame 12.
Thereby, the back member 14 can be opened and closed with the upper end as a fulcrum.

A horizontal rail 16 is provided in the width direction in the middle of the front side of the back member 11. An elastic band 17 is provided between the horizontal rail 16 and the upper side of the frame 12, that is, in the upper half of the back member 11, in a lattice shape, and inclining rearward as it goes above the back member 11. Have been. The upper half elastic band 17 on the front side of the back member 11
, The upper surface and both outer surfaces of the frame body 12
0a.

A pair of lower connecting members 15 are attached to both ends in the width direction of the lower end of the front plate 13 of the back member 11. The lower connecting member 15 is formed with an angle material, like the front connecting member 8, and has a mounting hole 15a on one side and a pair of locking holes 15b on the other side. Further, the front plate 13
A rear receiving bar 21 is attached to the upper portion of the lower connecting member 15 along the horizontal direction over the entire length in the width direction.

The back member 11 having the above-described structure is formed at the upper portion on both sides of the frame body 12 while engaging the locking holes 15b of the pair of second lower connecting members 15 with the pair of pins 4b of the rear receiving member 4. The headed tightening bolt 22 is passed through the through hole 12a, and the bolt 22 is screwed into the nut 10 embedded in the side member 1 to be detachably attached between the pair of side members 1. I have.

When the back member 11 is mounted, the back member 14 is opened. Thereby, the internal space of the back member 11 is opened, so that the work of tightening the tightening bolts 22 can be easily performed.

When the back member 11 is mounted, the rear receiving bar 21 provided at the lower end of the front surface and the front receiving bar 9 provided on the inner surface of the front plate 13 have substantially the same height. A floor member 25 is detachably mounted on the receiving bars 9 and 21 by engaging the front end side and the rear end side.

As shown in FIG. 1, the floor member 25 includes a frame member 26, an elastic band 27 laid in a grid on the upper surface of the frame member 26, and an exterior ground 27 a covering the frame member 26. Is formed from. And the floor member 25
A seat cushion 28 is placed on the upper part, and a back cushion 29 is attached to the back member 11 to form a knockdown chair.

According to the assembly type chair having such a configuration, the back member 11 is connected to the side member 1 by the lower connecting member 15 provided at the lower end portion engaging with the rear receiving member 4. Are connected to the side member 1 by fastening bolts 22 through through holes 12 a provided in the side portions of the frame body 12.

Therefore, when the user sits on the seat cushion 28 and leans on the back cushion 29, the load applied to the back member 11 is distributed to the lower connecting member 15 and the tightening bolt 22, and the conventional assembly is performed. Since the back member 11 is not concentrated only on the lower portion unlike the chair, the assembled state of the back member 11 is reliably maintained and the back member 11 is hardly damaged.

When assembling the back member 11, the operation of connecting the back member 11 to the side member 1 by the fastening bolt 22 can be performed from the inside of the back member 11 by opening the internal space of the back member 11 with the back member 14. That is, the back member 1
Since the tightening operation can be performed in a state where the internal space 1 is opened, the operation can be performed reliably and easily.

When the tightening operation is completed, the back member 1
If the back surface of the back member 11 is closed by 4, the tightening bolt 22 is concealed inside the back member 11 and is not exposed to the outside, so that the appearance is good. Further, since the back cushion 29 is inclined according to the inclination angle of the elastic band 27 stretched over the upper half of the front surface of the back member 11, the user sitting on the seat cushion 28 may easily lean.

Next, second to sixth embodiments of the present invention will be described with reference to FIGS. The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. FIG. 5 shows a second embodiment of the present invention. In this embodiment, the front end sides of the pair of side members 1 are connected by a storage box 35 instead of the front member 7 of the first embodiment. That is, the storage box 35 is composed of an outer box 36 and a drawer 37 that is housed in a freely removable manner from the front side of the outer box 36.
A front connecting member 8A having a channel shape is fixed to both outer surfaces on the front end side of the outer box 36. The front connecting member 8A includes a pin 3a of the front receiving member 3.
A pair of tapered locking holes 8b are formed to engage with a not shown (not shown).

Further, the seat cushion 28 is placed on the upper surface of the outer box 36. That is, in this embodiment, the upper surface of the outer box 36 constitutes the connecting member and the floor member in the first embodiment.

FIG. 6 shows a third embodiment of the present invention. This embodiment is a modified example of a floor member, and a cushion body 41 as a floor member is provided between a pair of side members 1. This cushion body 41 has a bottom plate 43 provided with a pair of legs 42 at both ends of the lower surface at the rear. A spring unit 44 is provided on the upper surface of the bottom plate 43, and a thin sheet-like cushion material 45 is laminated on the upper surface of the spring unit 44. The upper surface of the cushion material 45 and the outer peripheral surface of the spring unit 44 are covered with an exterior ground 46, and the periphery of the exterior ground 46 is fixed to the bottom plate 43. Then, the seat cushion 28 is placed on the cushion body 41.

A front connecting member 8 (not shown) is provided on both sides of the front end of the bottom plate 43. The front connecting member 8 is a front receiving member provided on the inner front end of the side member 1. 3 is detachably engaged. Thereby, the cushion body 41 is held between the pair of side members 1.

FIG. 7 shows a fourth embodiment of the present invention. This embodiment is a modification of the back member 11. That is, the back member 14 of the back member 11 is formed to be substantially the same size as the frame body 12, and the first velvet fastener 14 c is provided on the inner surface of three sides except the upper side, and the first velvet fastener 14 c is provided. Second velvet fastener 14 to be engaged
d is provided on three sides except the upper side of the rear end face of the frame 12. Therefore, according to this embodiment, the back member 11 can be securely attached to the frame 12 as compared with the first embodiment.

FIG. 8 shows a fifth embodiment of the present invention. This embodiment is a modification of the back member 11, in which fasteners 51a and 51b are provided on both sides of the back member 11 and the rear end of the front exterior ground 20a covering the side surfaces of the frame 12, respectively, and these fasteners are disengaged. Thus, the rear member 11 can be opened and closed.

FIGS. 9A and 9B show a sixth embodiment of the present invention. This embodiment is a modification of the connection structure between the back member 11 and the side member 1. The connection structure between the upper portion of the back member 11 and the side member 1 is the same as that of the first embodiment, but the connection structure at the lower portion. Are different. That is, in this embodiment, the lower connecting member 15 is not provided at the lower part of the front surface of the back member 11, and the through hole 12 b is also formed at the lower part of the side of the frame 12, while the lower member has the through hole 12 b at the lower part. Nut 10 (not shown) at corresponding position
Buried.

The back member 11 is connected to the nut 10 of the side member 1 by screwing the fastening bolt 22 through the upper and lower through holes 12a and 12b formed on the side of the back member 11, respectively. It has become. In this embodiment, a back member 14 that can be opened and closed with respect to the back member 11 is provided.
The means for fixing the back member 11 with the back surface of the back member 11 closed is the same as in the first embodiment.

According to such a configuration, the fastening bolts 22 connecting the side member 1 and the back member 11 are not exposed to the outside at all.
, The upper and lower fastening bolts 22 can be easily tightened from the back side of the back member 11.

[0036]

As described above, according to the present invention, not only the lower end but also the upper part of the back member is connected to the side member, so that the load when the user leans on is different from the conventional one. Since it is not concentrated only at the lower end portion but is dispersed at the upper portion, the connection state between the back member and the side member is hardly damaged.

The back member of the back member is formed to be freely openable and closable. Therefore, the work of connecting at least the upper part of the lower part and the upper part of the back member to the side member can be performed by opening the back side of the back member by the back member, so that a sufficient work space is obtained, and the work is performed. May be easier to do.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an assembled chair according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view along the front-rear direction showing the assembled state.

FIG. 3 is a longitudinal sectional view of the back member.

FIG. 4 is a perspective view of a receiving device and a connecting device.

FIG. 5 is a longitudinal sectional view of a knockdown chair according to a second embodiment of the present invention, taken along the front-rear direction.

FIG. 6 is a longitudinal sectional view along a front-rear direction of a knockdown chair according to a third embodiment of the present invention.

FIG. 7 is a perspective view of a back member according to a fourth embodiment of the present invention as viewed from the back side.

FIG. 8 is a perspective view of a back member according to a fifth embodiment of the present invention, viewed from the back side.

FIG. 9 (a) is a longitudinal sectional view along a front-rear direction of a knockdown type chair according to a sixth embodiment of the present invention, and FIG. 9 (b) is a longitudinal sectional view of the same back member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... side member, 4 ... rear receiving member (lower connecting means), 6 ... support shaft (holding means), 7 ... front member (connecting member), 8 ... lower connecting tool (lower connecting means), 11 ... back member, 13: Front plate, 15: Upper connecting tool (upper connecting means), 17: Opening / closing section, 22: Tightening bolt (upper connecting means), 25: Floor member.

Claims (1)

(57) [Claims] 1. A pair of side members, a connecting member for connecting the front end sides of these side members at a predetermined interval, and a back member formed in a hollow box shape and having a back side openably and closably provided, and A back member provided upright on the rear end side of the side member, lower connecting means for connecting a lower portion of the back member to the side member, and an upper connection for connecting upper portions of both side portions of the back member to the side member; Means, and a floor member held at a predetermined height between the pair of side members, wherein at least the upper connecting means of the lower connecting means and the upper connecting means includes both sides of the back member therein. And a side member connected to the side member.