JPH02225810A - Member connecting device for built-up furniture - Google Patents

Abstract

PURPOSE:To attempt prevention of looseness at a connecting part by providing, on a pair of connecting pieces protruding opposing to each other in which the first member is engaged with the second member, a screw hole on one of the connecting pieces and a screw through-hole on the second member and by screwing a push screw in so as to press and elastically deform the other connecting piece. CONSTITUTION:A pair of connecting piece 31 and 32 are protruded perpendicular to a base 3 and fixed by welding so that a square pipe support 1 to be installed on the base 3 is engaged with them. A reinforcing piece 33 is arranged at the center of the lower part of the connecting piece 31 and 32, the upper surface of the base 3 and the inner surface of the front connecting piece 31, and the lower part of the base 3 and the lower part of the connecting piece 32 are fixed by welding, respectively, and a screw hole 34 is provided at the connecting piece 32. A screw through-hole 11 is provided at the position corresponding to the screw hole 34 on the support, and a push screw 4 is screwed in so as to elastically deform the connecting pieces 31, and 32 in the direction opposing to each other. Thus, looseness after connecting can be eliminated and firm fixing can be achieved with simple structure.

Description

[Detailed description of the invention] (Industrial application field) It is related to

(Prior Art) Conventionally, when the members of assembled furniture are cross-connected to each other at right angles, a screw connection means is used in the shell.For example, in an assembled fence, a pipe support and this support are connected. When connecting one character with the base to stand on the floor,
A flange is provided at the lower end of the column and this flange is screwed to the base.

[Problem to be solved by the invention]

However, with this screw connection means, the screws tend to loosen due to external forces, and as is well known, the connection part tends to become loose, which poses a problem in the stability of the assembled state. In particular, in the case of the connecting portion between the pillars and the base of the above-mentioned assembly shelf, the play is directly connected to the back and forth or lateral sway of the entire shelf, causing the Practical 1ji W4 to fall awkwardly.

(Thus, the present invention is capable of connecting members of assembled furniture that can obtain a strong member connection v1 state in which no looseness occurs, not by the tightening force of screws, but by the pressure contact force between the members using the spring action of the members. It is a device that has been used for generations.

(Means for Solving the Problems) The present invention is a member connecting device for cross-connecting a first member and a second member made of pipe material in assembled furniture, wherein the first member is connected to the second member made of pipe material. A pair of connecting pieces into which the FFI material No. 2 is externally fitted are provided protrudingly facing each other, one of the connecting pieces has a screw hole, and the second member has a screw hole that matches the screw hole. A push screw is inserted into the tapped hole through this threaded hole, and its tip is pressed against the other connecting piece to elastically deform both connecting pieces in mutually opposite directions. can be fixed by being brought into pressure contact with the inner surface of the second member.

Further, in the device according to claim 2, the first member is a base of the assembled furniture, the second member is a pipe support erected on the base, and both connecting pieces are provided protruding from both the front and rear sides of the base. This is what I did.

On the other hand, in the apparatus according to claim 3, based on the structure of claim 1 or 2, a reinforcing piece is interposed between the inner connecting pieces, and this reinforcing piece is welded to the first member and one of the connecting pieces. It is fixed.

In the device according to claim 4, in the case of the configuration according to claim 2, the reinforcing piece is welded and fixed to the base and the front connecting piece.

[Effect]

In this way, since the connection piece (1) is brought into pressure contact with the inner surface of the second member by the spring force of the connection piece, basically there is no looseness in this connection part unlike in the case of conventional screw connections.
It is possible to obtain a strong connection state.

In particular, as claimed in claim 2, when applied to the connecting portion between the support and the base, it is possible to suppress the back and forth or lateral shaking of the support and the entire furniture such as an assembled shelf, thereby maintaining a stable assembled state. can.

Further, according to the structure of claim 3, in which the reinforcing piece is interposed between the inner connecting pieces and fixed to the first member and one of the connecting pieces,
The springiness of the connecting piece on the side fixed to the reinforcing piece is suppressed, making it so-called strong. Further, the reinforcing piece suppresses inward spring deformation of the other connecting piece. Therefore, spring deformation of both connecting pieces after assembly is suppressed, and an even more stable assembled state can be obtained. Furthermore, since the reinforcing piece is not fixed to one of the connecting pieces, it is possible to reliably obtain the spring deformation action of the two connecting pieces required during connection.

Further, according to the structure of claim 4, in which the reinforcing piece is welded and fixed to the base and the front side connecting piece, the face side connecting piece tends to fall backward due to welding with the reinforcing piece. is set to Therefore, especially in the case of assembled shelves, the columns can be automatically set in advance to a slightly backward tilt so that they become vertical when a load is applied.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

First Embodiment (See FIGS. 1 to 5) In this embodiment, the present invention is applied to a connecting portion between a support l and a base in an assembled shelf.

1 is a shelf support made of a square pipe, 2 is a shelf board attached to this branch 1, and 3 is a base for making the support 1 independent.

This base 3 is formed by assembling high-sided oval pipes into a roughly H-shape in plan view, and the branch office 1 is attached to the center of the base 1.

A pair of connecting pieces 31 and 32, into which the support column 1 can be externally fitted, are welded and fixed to opposite sides of the central portion of the base so as to protrude perpendicularly above the base.

A reinforcing piece 33 is located at the center of the lower part between the two connecting pieces 31 and 32.
is interposed in a vertical state perpendicular to both connecting pieces 31 and 32. This reinforcing piece 33 connects the top surface of the base 3 with the front connecting piece 3.
1, and is not fixed to the rear connecting piece 32.

Therefore, the portion of the rear connecting piece 32 above the portion fixed to the base 3, and the portion of the front connecting piece 31 above the portion fixed to the reinforcing piece 33 are spring-deformed in the front-rear direction, respectively, to form a hanging portion.

In addition, in FIGS. 3 to 15, W indicates the base 3 and the connecting piece 31,
32 shows the welded parts of the base 3 and the reinforcing piece 33, and the welding parts of the reinforcing piece 33 and the front connecting piece 31.

Further, although the front connecting piece 31 is shown in a vertical state in the figure, as a result of being pulled rearward by welding with the reinforcing piece 33, the front connecting piece 31 is attached to the base 3 so as to fall slightly backward.

Further, the rear connecting piece 32 is provided with a screw hole 34 in the center in the width direction at a position above the reinforcing piece 33 and close to the reinforcing piece 33.

On the other hand, the column 1 is provided with a screw hole 11 at the center in the width direction of the lower rear side wall, and when the column 1 is fitted onto both connecting pieces 31 and 32, this screw hole 11 is inserted into the rear third connecting piece 32. It is made to match the screw hole 34 of. Also, the first
As shown in the figure, a notch 12 into which the base 3 fits is provided on both left and right side walls of the lower end of the column.

When connecting the strut 1 and the base 3, with the lower part of the strut fitted onto both connecting pieces 31 and 32, insert the set screw 4 into the screw hole 34 of the rear connecting piece 32 through the screw hole 11. Insert the screw, bring its tip into contact with the front connecting piece 31, and tighten.

In this way, both the connecting pieces 31 and 32 are spring-deformed in the direction in which they face each other and come into elastic pressure contact with the front and rear inner surfaces of the support column 1 (the state shown in FIGS. 4 and 5).

To explain this point in detail, since the width dimension A and the open outside dimension B of both connecting pieces 31. 32, there is a slight gap between them.

When the set screw 4 is tightened in this state, as shown in FIG.
a, 32a come into pressure contact with the rounded surfaces 1a of the pillar corners, and due to the pressure contact force of these parts, the pillar 1 is brought into contact with both connecting pieces 31.
32 in the front-back and left-right directions.

In addition, the part of the front connecting piece 31 above the part fixed to the reinforcing piece 33 becomes a spring deformable part, but since the lower end of this spring deformable part is pressed by the push screw 4, the whole part is spring-deformed outward and becomes inscribed in the support column 1. That is, by making the most of the spring properties of the spring-deformable portion of the front a connecting piece 31, this portion can be brought into pressure contact with the inner surface of the support column under constant spring force.

Further, a reinforcing piece 33 is interposed between both connecting pieces 31 and 32,
Furthermore, by fixing this reinforcing piece 33 to the front connecting piece 31, the following effects can be obtained.

In the 1178M connecting piece 31, only the portion above the reinforcing piece 33 can be spring deformed, so that the springiness of the entire connecting piece 31 is half-killed. As a result, the front connecting piece 3
Part 1: W4: My lower back becomes stronger. Further, the reinforcing piece 33 suppresses spring deformation of the rear connecting piece 32 inward (towards the front).

Due to the synergistic effect of these two points, movement of both connecting pieces 31, 32 in the front-back direction due to disassembly after assembly is suppressed.

Due to the above action, the column 1 is connected to the base 3 in a state where it is completely restrained in the front and rear and left and right directions.
It is possible to obtain a stable assembled state in which there is no possibility that the support column 1 will be shaken back and forth or swayed laterally after being assembled.

Note that, as described above, since the front connecting piece 31 is attached to the base 3 so as to tilt slightly backward, the support column 1 is attached to the base 3 with a slight backward tilt.

Therefore, the shelf board 2 becomes a state of seedling soil when no load is applied, and becomes horizontal when a load is applied, which is effective in preventing objects placed thereon from slipping off.

Other Embodiments (A) In the above embodiment, the push screw 4 was screwed in from the rear side, but it may be screwed in from the front side.

(b) In the above embodiment, the push screw U4 is placed directly above the reinforcing piece 33, but the push screw 4 is placed in the upper part U away from the reinforcing piece 33, as shown by the solid line or the imaginary line in FIG. May be placed.

(c) In the above embodiment, one reinforcing piece 33 is connected to both connecting pieces 31.
．． As shown in Fig. 7-8, a pair of left and right reinforcing pieces 33.33 are inserted between the connecting pieces 31.3.
It may be interposed between both widthwise side portions of the two.

In this case, the push screw 4 is connected to the reinforcing piece 33 as in the previous embodiment.
It may be placed higher up, or both reinforcing pieces 3 may be placed higher as shown in the figure.
It may be placed between 3.3 and 33.

(d) Although the reinforcing piece 33 is very useful as mentioned above, even if this reinforcing piece 33 is not provided, it is not possible to obtain a much stronger and more stable connection compared to the conventional screw connection. can.

(e) In the above embodiments, a support of a square pipe type was taken as an example, but the present invention can also be applied to a case where the support is a round pipe. In this case, both connecting pieces 31 and 32 may have the same shape as in the above embodiment, or may have an outer surface formed into an arcuate surface corresponding to the inner surface of the column.

(f) On the other hand, the base 3 may be a square pipe, a round pipe, or a shaped steel material such as a C-shaped steel.

(g) If the present invention is applied to the connecting part between the branch and the base of the assembly shelf mentioned in the above embodiment, it is particularly effective in that it can prevent the entire shelf from swinging back and forth and from side to side.
In addition, it can be widely applied to cross-connected parts in assembled furniture, such as legs and bases of assembled tables (including cross-connected parts in directions other than the right angle direction).

(Effects of the Invention) As described above, according to the present invention, since the spring force of the pair of connecting pieces elastically presses and connects both the connecting pieces to the inner surface of the second member, basically this Unlike conventional screw connections, looseness does not occur in the connecting portions, and a strong connection can be achieved.

In particular, when applied to the connecting portion between the column and the base, it is possible to suppress the longitudinal and horizontal shaking of the column and obtain a stable assembled state.

Further, according to the structure of claim 3, in which the reinforcing piece is interposed between the inner connecting pieces and fixed to the first member and one of the connecting pieces,
The springiness of the connecting piece on the side fixed to the reinforcing piece is suppressed, making it so-called strong. Further, the reinforcing piece suppresses inward spring deformation of the other connecting piece. Therefore, the movement of both connecting pieces after assembly is suppressed, and an even more stable assembled state can be achieved. Furthermore, since the reinforcing piece is not fixed to one of the connecting pieces, it is possible to reliably obtain the spring deformation effect of both connecting pieces that is necessary during connection.

Further, according to the structure of claim 4, in which the reinforcing piece is welded and fixed to the base and the front connecting piece, based on the structure of claim 2, the front connecting piece is set slightly backward by welding with the reinforcing piece. be done. Therefore, especially in the case of assembled shelves, the columns can be automatically set in advance to a slightly backward tilt so that they become vertical when a load is applied.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a column and base showing the first embodiment of the present invention, Fig. 2 is an enlarged rear view showing the connection piece attachment portion of the base in the same embodiment, and Fig. 3 is Fig. 2 - ■ A cross-sectional view of the road, Figure 4 is a view equivalent to Figure 3 showing the state in which the support and base are connected, Figure 5 is an enlarged cross-sectional view along the line ■-v, and Figure 6 is an enlarged cross-sectional view of the FIG. 7 is a view equivalent to FIG. 4 showing an embodiment, FIG. 7 is a view equivalent to FIG. 2 showing another embodiment of the present invention, and FIG. 8 is a view equivalent to FIG. 4. DESCRIPTION OF SYMBOLS 1... Support as a second member, 11... Screw hole in the support, 3... Base as a first member, 31° 32... Pair of connecting pieces, 33... Reinforcement Piece, 34...
・Screw hole, 4...Push screw. Patent applicant: Representative of KOKUYO Co., Ltd. Patent attorney: Etsushi Kotani
Patent Attorney Chief 1) Masayuki Patent Attorney Takao Ito Figure 1 ``Wataru Figure Figure Figure Figure Procedure Amendment (Voluntary) March 28, 1999 Name Assembling of the Invention of Patent Application No. 46749 of 1999 Furniture component connecting device 3, name related to the case of the person making the amendment

Claims (1)

[Scope of Claims] 1. A member connecting device for cross-connecting a first member and a second member made of pipe material in assembled furniture, wherein the second member is externally connected to the first member. A pair of connecting pieces to be fitted are provided protrudingly facing each other, and one of the connecting pieces has a screw hole,
Screw through holes that match the screw holes are provided in the second member, and a push screw is screwed into the screw hole through the screw holes, and the tip of the screw is pressed into contact with the other connecting piece. By elastically deforming in the direction of separating the
A device for connecting members of assembled furniture, characterized in that both connecting pieces can be fixed by being brought into pressure contact with the inner surface of the second member. 2. Claim 1, characterized in that the first member is a base of assembled furniture, the second member is a pipe support erected on the base, and both connecting pieces are provided protruding from both the front and rear sides of the base. A component connecting device for the assembled furniture described above. 3. A reinforcing piece is interposed between both connecting pieces, and this reinforcing piece is connected to the first
3. The assembly furniture member connecting device according to claim 1, wherein the member is welded and fixed to one of the connecting pieces. 4. The assembly furniture member connecting device according to claim 2, wherein the reinforcing piece is welded and fixed to the base and the front side connecting piece.