JP2001132714A - Furniture-joining structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide furniture-joining structure facilitating assembly work and shortening working time. SOLUTION: A foot 3 has plural flange parts 28 at one end, arranged in the circumferential direction and a male screw 24 formed on the outer circumferential surface in the vicinity of the flange parts 28. A foot-fastening nut 16 is screwed to the male screw 24. A fixing plate 4 is fixed to the back surface 2a of a top plate 2. The fixing plate 4 has a flange passing through-hole 1 for passing the flange part 28 toward the back surface 2a of the top plate 2. The end surface 7b of a deformed flange housing recessed part 7a constitutes a stopper part for regulating the rotating range of the flange part 28 passed through the flange passing through hole 11. When a foot-fastening nut 16 is rotated in the fastening direction, in the state that the flange part 28 comes in contact with the stopper part 7b, a fixing plate 4 is fastened between the fastening nut 16 and the flange part 28, and the foot 3 is fixed to the top plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a furniture connecting structure,
More specifically, the present invention relates to a connection structure between a mounting object such as a table top and a chair seat and a member to be mounted such as a leg.

[0002]

2. Description of the Related Art Conventionally, there are various types of connection structures between a table top plate and legs. One of the types is as follows.
A mounting metal plate is integrally formed on the upper end of the leg, or a separate mounting metal plate is integrated with the leg and fixed, and a screw is inserted into the hole of this metal plate and screwed into a nut embedded in the back of the top plate. Thus, a connection structure for connecting the top plate and the legs is well known.

[0003]

However, according to the conventional connection structure as described above, when assembling the table on site, work using a tool such as a driver is required, and this work is complicated and There was a problem that it took a long working time.

The present invention is not limited to the connection structure between the table top and the legs, but can be applied to a wide range of furniture such as the connection structure between the chair seat and the legs. It is an object of the present invention to solve the above-described conventional problems, and to provide a furniture connecting structure capable of facilitating on-site assembly work and shortening work time.

[0005]

A furniture connecting structure according to the present invention includes a plurality of flange portions arranged at one end along a circumferential direction, and a male screw is formed on an outer peripheral surface near the flange portion. A member to be mounted, a tightening nut screwed to the male screw, and a mounting plate fixed to the back surface of the mounting target, wherein a flange through hole for passing the flange portion toward the back surface of the mounting target is formed. A mounting plate having a stopper portion for restricting a rotation range of the flange portion passing through the flange through-hole, and when the tightening nut is rotated in a tightening direction, the flange portion is in contact with the stopper portion. In the contact state, the mounting plate is tightened between the tightening nut and the flange portion,
The mounting member is fixed to the mounting target.

Here, the object to be attached refers to a table top or a chair seat, and the attached member refers to a top plate or a leg attached to the seat.

In the furniture mounting structure according to the present invention, the mounting plate can be fixed to a mounting object in a furniture manufacturing factory or the like in advance. Therefore, when mounting the member to be mounted on the mounting object at the site, the flange portion of the mounting member is passed through the flange through hole of the mounting plate, and the tightening nut is rotated in the tightening direction. The mounting plate is tightened between the tightening nut and the flange portion in the contact state, and the mounted member is fixed to the mounting target. As described above, according to the present invention, the operation of connecting the member to be mounted to the object to be mounted is extremely simplified, and the operation time can be reduced.

It is desirable that the mounting plate is flush with the rear surface of the mounting object from the viewpoint of design.

[0009]

1 to 8 show a table leg mounting structure according to an embodiment of a furniture connecting structure according to the present invention.

As shown in FIG. 1, a table (furniture) 1 is assembled by attaching upper ends 3a of legs (attached members) 3 to four corners of a back surface 2a of a top plate (object to be attached) 2, respectively.
The top plate 2, the mounting plate 4, and the legs 3 are main components.

(1) Top plate 2 and mounting plate 4 Each corner of the back surface 2a of the top plate 2 has a recess 5 as shown in FIG.
The mounting plate 4 shown in FIG. 3 is housed and fixed in the recess 5.

As shown in FIG. 2, the recess 5 is constituted by an annular plate housing recess 6 and a substantially annular flange housing recess 7. The plate receiving recess 6 is provided with the mounting plate 4.
And has a depth substantially matching the thickness of the mounting plate 4. The flange receiving recess 7 is located adjacent to the inside of the plate receiving recess 6 and has a greater depth than the plate receiving recess 6. Inside the flange accommodating recess 7, an island portion 8 for positioning the mounting plate 4 is formed. In addition, the island portion 8 may not be provided, and the configuration may be such that the flange housing recess 7 occupies the entire inside of the plate housing recess 6.

At the four corners of the plate receiving recess 6, nuts 9 for fixing the mounting plate are embedded.

A part of the flange accommodating recess 7 constitutes a modified flange accommodating recess 7a projecting outward in the radial direction.

As shown in FIG. 3, the mounting plate 4 has a rectangular flat plate shape corresponding to the outer peripheral shape of the plate accommodating concave portion 6, and has screw holes 4 through which mounting screws 10 pass at four corners.
a. Further, the mounting plate 4 has a flange through hole 11 for passing a flange portion 28a, 28b, 28c, 28d (which may be represented by reference numeral 28) to be described later through the flange accommodating recess 7.

The flange through hole 11 has an inner hole 12 having a small radius and a plurality (four in this embodiment) of outer holes 13a, 13b, 1 protruding radially outward from the inner hole 12.
3c and 13d. Four outer holes 13a,
Among the outer holes 13a, 13b, 13b, 13c, 13d, two adjacent outer holes 13a, 13b are formed of odd-shaped holes having different radii in a stepwise manner, and the shapes of the two odd-shaped holes 13a, 13b are line-symmetric with each other. The modified hole 1 located on the left side in FIG.
A modified flange portion 28a described later is passed through 3a. The reason why the two modified holes 13a and 13b are provided in a line-symmetrical relationship is that the mounting plate 4 shown in FIG. The three corners (the mounting plate 4 in FIG. 3 is a mounting plate attached to the lower left corner of the back surface 2a of the top plate 2, and the other three corners are the upper left corner, the upper right corner,
The lower right corner. This is because the mounting plate having the same shape can be used also in (1).

To mount the mounting plate 4 on the back surface 2a of the top plate 2, first, the mounting plate 4 is fitted into the plate receiving recess 6, and the flange through-hole 11 is inserted into the flange receiving recess 7.
And one of the two modified holes 13a and 13b overlaps with the modified flange accommodating recess 7a.
The mounting plate 4 is positioned with respect to the plate housing recess 6. Then, the mounting screws 10 are passed through the respective screw through holes 4a and screwed into the nuts 9. By this operation, the mounting plate 4 is fixed to the back surface 2a of the top plate 2. Here, the lower surface 4 b of the mounting plate 4 is flush with the rear surface 2 a of the top plate 2.

(2) Leg 3 As shown in FIGS. 4A and 4B, the leg 3 is
And fixing parts 15 and leg fastening nuts 16.

The leg body 14 is provided with a column member 18 having at least an upper end portion having a hollow opening 17 (FIG. 5) having a circular cross section, an elliptical shape, a triangular shape, or a rectangular shape, and a lower end portion of the column member 18. And a known adjuster 19 for adjusting the height position. As shown in FIG. 5, a nut plate 21 to which a nut 20 is welded is welded to the inner peripheral surface of the hollow opening 17 at the upper end.

The fixed part 15 is formed of a molded product such as an aluminum die cast. As shown in FIG. 5, the fixing part 15 includes a press-fitting portion 22 that is press-fitted into the hollow opening 17 of the support member 18 from above. At the upper end of the press-fit portion 22,
The male screw part 23 is extended. A male screw 24 is formed on the outer peripheral surface of the male screw portion 23, and a concave portion 25 that opens upward is formed in the male screw portion 23. This recess 25
A bolt through hole 27 for guiding the shaft portion 26 a of the bolt 26 to the nut plate 21 is formed on the lower surface of the bolt 26. As shown in FIG. 6, four flanges 28 a, 28 b, 2
8c and 28d are formed along the circumferential direction. One of the four flanges 28a, 28b, 28c, 28d
The two flange portions 28a are constituted by irregularly shaped flange portions having different radii in steps. Four flanges 2
8a, 28b, 28c, 28d, as shown in FIG.
The corresponding outer holes 13a, 1
It is formed in a shape and size that can be accommodated in the flange accommodating recess 7 of the top plate 2 through 3b, 13c, 13d.

The fixed part 15 is formed by press-fitting the press-fitting portion 22 into the hollow opening 17 of the support member 18, passing the shaft 26 a of the bolt 26 into the bolt through hole 27 and screwing the tip of the shaft 26 a into the nut 20. It is integrated with the support member 18.

The leg tightening nut 16 is provided on the lower part of the support member 1.
8 has a through hole 29 through which it can pass, and a female screw 30 which extends from an upper end of the through hole 29 and into which the male screw 24 of the fixing part 15 is screwed. A plurality of ridges 31 are formed on the outer peripheral surface of the lower portion to exert a non-slip action when the leg tightening nut 16 is manually rotated.

Next, an example of a method of attaching the legs 3 to the top plate 2 having the attachment plate 4 fixed to the back surface 2a will be described.

First, in a state where the female screw 30 of the leg tightening nut 16 is partially screwed into the male screw 24 of the fixing part 15, the flange portion is inserted into the flange through hole 11 of the mounting plate 4 as shown by a solid line in FIG. 28, the flange 28 is housed in the flange housing recess 7. Next, the leg tightening nut 16 is manually rotated in the tightening direction. Then, the flange portion 28 rotates to the state shown by the two-dot chain line in FIG. 7, and the modified flange portion 28a is moved to the end face 7 of the modified flange accommodating recess 7a.
The rotation of the flange portion 28 is stopped by abutting on b. After that, when the rotation operation of the leg tightening nut 16 in the tightening direction is continued, the leg tightening nut 16 is screwed into the fixed part 15, and the flange portion 28 and the leg tightening nut 16 are rotated.
With the contact pieces 13e, 13f, 13g of the mounting plate 4,
13h (adjacent outer holes 13a, 13b, 13c, 1
It is formed between 3d and may be represented by reference numeral 13 '. ), And the legs 3 are fixed to the top plate 2 as shown in FIG.

As described above, the operation of attaching the legs 3 to the top plate 2 can be performed very easily without using tools, and the operation time can be reduced. Further, since the position of the leg body 14 in the rotation direction with respect to the top plate 2 after the attachment of the legs is uniquely determined by the position where the modified flange portion 28a contacts the end surface 7b of the modified flange accommodating recess 7a, the cross section is not circular. The direction of the column member 18 having the irregular cross-sectional shape is determined for each leg 3, and the entire leg can be aligned in a uniform direction. Here, the end face 7b of the deformed flange accommodating recess 7a
Constitutes a stopper for restricting the rotation range of the flange 28.

The upper part of the leg tightening nut 16 has a large diameter and a large diameter, and the lower part has a small diameter and a small diameter. For this reason, the contact surface with the mounting plate 4 that the leg tightening nut 16 sandwiches is widened by the thick upper portion, so that the leg 3 can be stably mounted. In addition, the thin lower portion allows manual operation by grasping this lower portion. Operation becomes easier.

FIG. 9 shows another embodiment. In this embodiment, another top plate 50 is connected to the top plate 2 of the table 1.
0 is connected to the top plate 2. That is, the leg main body 1 is inserted into the male screw through hole 53 of the connection plate 52 connected to the other top plate 2 by the mounting bracket 51 from above.
4. The male screw portion 23 of the fixing part 15 is passed through the male screw part 23 of the fixing part 15 in order, and the female screw 30 of the leg tightening nut 16 is
Is screwed into the flange portion 28 and the leg tightening nut 16 by performing operations similar to those described above.
And the mounting plate 4 and the connecting plate 52 are sandwiched by
At the same time that the leg 3 is fixed to the top 2, another top 50 is connected to the top 2.

Another embodiment of the leg tightening nut 16 is shown in FIG.
(A) and (B) show. The leg tightening nut 16 is configured such that the tip of a simple tool such as a screwdriver can be inserted into the tool insertion hole 60 and rotated instead of manually rotating. Other configurations are substantially the same as those of the leg tightening nut 16 shown in FIG. 5 and the like, and a female screw 30 is formed on the inner peripheral surface.

In the embodiment described above, the leg body 14
Although the fixed part 15 and the fixed part 15 are separate bodies, they may be integrated. Further, in the above-described embodiment, the stopper portion is constituted by the end face 7b of the deformed flange accommodating concave portion 7a of the top plate 2, but as shown in FIG.
A stopper 70 may be provided on the side. Further, in the above-described embodiment, the concave portion 5 is formed on the back surface 2a of the top plate 2.
However, as shown in FIGS. 11 and 12, a space in which the same action as that of the concave portion 5 can be formed may be formed in the mounting plate 4.

[0030]

According to the present invention, the work of connecting the member to be mounted to the object to be mounted becomes extremely simple and the working time can be shortened.

Further, by making the mounting plate flush with the back surface of the mounting object, the design surface can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic exploded perspective view of a table in which a table connecting structure according to an embodiment of the present invention is incorporated.

FIG. 2 is a back view of one of four corners of a table top.

FIG. 3 is a back view of one of four corners of a top plate having a mounting plate fixed to the back surface.

4A is a plan view of a leg, and FIG. 4B is a side view of the leg.

FIG. 5 is an exploded partial sectional view of a main part of the leg.

FIG. 6 is a plan view of a fixed part.

FIG. 7 is a back view of one corner of each of the four corners of the top plate for explaining the positional relationship between the flange through hole of the mounting plate and the flange portion.

FIG. 8 is a cross-sectional view showing a state where legs are attached to the top plate.

FIG. 9 is a cross-sectional view of another embodiment.

FIG. 10A is a plan view of a leg tightening nut according to another embodiment, and FIG. 10B is a side view of the leg tightening nut.

FIG. 11 is a plan view of a main part of a table connection structure according to another embodiment.

FIG. 12 is a sectional view of the connection structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Table (furniture) 2 Top plate (attachment object) 2a Back surface 3 Leg (attached member) 4 Mounting plate 28, 28a, 28b, 28c, 28d Flange part 11 Flange through hole 16 Leg tightening nut (tightening nut) 24 Male thread 7b End face of modified flange accommodating recess 7a (stopper part) 70 Stopper part

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidenobu Yamada 1-term Central Malleable Industry Co., Ltd., 3-chome, Buchagawa-cho, Nakagawa-ku, Nagoya-shi, Aichi F-term (reference) 3J023 AA01 BA02 BB01 CA10 DA01 DA04 3J024 AA02 CA03

Claims (2)

[Claims] 1. A mounting member having a plurality of flanges disposed at one end thereof along a circumferential direction, and having a male screw formed on an outer peripheral surface near the flange, and a fastening screwed to the male screw. A mounting nut fixed to the back surface of the mounting target, the mounting plate having a flange through hole for passing the flange portion toward the back surface of the mounting target; and A stopper portion for regulating a rotation range of the flange portion. When the tightening nut is rotated in the tightening direction, the tightening nut and the flange are held in a state where the flange portion is in contact with the stopper portion. A connection structure for furniture, wherein the mounting plate is fastened between the mounting member and the mounting member, and the mounted member is fixed to the mounting target. 2. The furniture connecting structure according to claim 1, wherein the mounting plate is flush with a back surface of the mounting object.