JP3528604B2 - desk - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk having a structure in which a top plate is supported by a support body formed by connecting a plurality of pipe members, and including a table and the like.

[0002]

2. Description of the Related Art This type of desk uses a plurality of pipes in order to support various top plate shapes and connect the top plates in different arrangements by using common parts as much as possible. The structure is such that it is supported by a support body formed by connecting members. Conventionally, various connecting structures for connecting these pipe members have been considered. For example, an arm is extended from one pipe member, and the other pipe member is externally fitted to this arm, and a bolt or the like is used. It is generally known that the other pipe member is screwed in from the side so that the arm and the other pipe member are tightly fixed.

[0003]

However, due to a slight fitting gap or the like set between the arm and the pipe member, tightening of the bolt causes the pipe member to slightly move in the direction orthogonal to the longitudinal direction thereof. There is a case where the pipe members are moved and the positional relationship between the pipe members set before tightening the bolts is deviated.
Therefore, in such a structure, it is difficult to accurately set the relative positional relationship between the pipe members, and there is a risk that the assembly work will take time. Further, most of the load acting on the connecting portion of the pipe members is concentrated on one side surface of the pipe member and the portion where the bolt is tightened.
It becomes structurally unfavorable.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is constructed such that pipe members are pulled in and connected to each other so as to closely contact each other, and the pipe members are assembled together. The structure is designed to facilitate the alignment and to support the load at the joint surface of the pipe members to structurally improve the strength.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A desk according to the present invention comprises a top plate and a support for supporting the top plate, and the support connects a plurality of pipe members through a connecting mechanism. A direction in which the connecting mechanism converts the tightening force exerting a tightening force in a required direction by the tightening operation and the force exerted by the tightening mechanism into a direction in which the pipe members are brought into close contact with each other. comprising a conversion means, while guiding the one of the pipe member to the other to a fixed arm of the pipe member state, and are not for connecting by pressing close contact with these pipe members to each other at the bonding surface of each other, the direction changing hands
The step has a surface facing the joint surface side of this arm,
Side opposite to the joint surface provided on the pair of side walls of one pipe member
It is inserted between the surface facing the
Move or deform so as to widen the distance between each surface
It is equipped with a movable member and faces the side opposite to the joint surface.
Between the surface and the movable member, which acts as a spacer.
Is interposed emissions characterized that you have.

With such a structure, even if the tightening operation is performed for connecting the pipe members to each other, no force is exerted on the pipe members except in the direction of bringing them into close contact with each other. It is possible to easily connect the pipe members to each other while accurately maintaining the positional relationship between the pipe members set to. In addition, since the load is supported by the joint surface of the pipe members, the structure is connected structurally as compared to the conventional structure in which the load is mainly supported on one side surface of the pipe member where the bolt is tightened. The strength of the portion can be improved. In addition, it is possible to set the tightening operation direction by the direction changing means to a direction in which the operation is easy or a direction convenient in appearance regardless of the direction in which the pipe members are brought into close contact with each other. Also,
Provided on a pair of side walls of another pipe member by a pin
And press the surfaces facing the non-bonding surface side approximately evenly
It should be possible to apply a substantially uniform pressing force to the entire mating surface.
it can.

In order to further improve the strength of the connecting portion, it is desirable that the direction changing means exerts a pressing force substantially evenly on the entire joint surface between the pipe members in the connected state. In a preferred embodiment, the connecting mechanism has an arm extending from one pipe member,
The other pipe member is configured so that it can be slidably guided in a direction in which the pipe member is in close contact with the other pipe member,
The direction changing means is inserted between the surface of the arm facing the joint surface side and the surface of the other pipe member facing the non-joint surface, and is orthogonal to the sliding direction of the pipe member. One including a movable member that moves or deforms so as to widen the distance between these surfaces according to the tightening operation from the direction. According to this structure, the movable member uses the surface facing the joint surface side as a scaffold, and presses the surface facing the non-joint surface side toward the joint surface side, thereby making the other pipe member one pipe member. It works so as to press closely.

In a more specific embodiment in this case, the movable members form a pair, and the distance between these movable members can be changed by screwing back and forth the bolts constituting the tightening means. Each movable member is tapered by pairing it with a pair of tapered surfaces provided on the surface facing the joint surface side and changing the distance between the movable members by tightening the bolts. It is preferable that it is configured to move along the surfaces in the direction of the close contact so as to expand the distance between the surfaces.

In order to effectively utilize the pipe member and to improve the appearance, it is desirable that the other pipe member be fitted onto the arm.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the desk according to the present embodiment, as shown in FIGS. 1 and 2, the upper ends of four leg columns 1 are connected via a frame body 2 and the top plate 3 is supported by the frame body 2. It is composed.

The leg columns 1 are arranged with their upper ends opposed to the lower surfaces of the four corners of the rectangular top plate 3 or in the vicinity thereof. on the other hand,
The frame 2 includes a pair of side frame members 21 that connect opposing surfaces near the upper ends of the front and rear leg struts 1 along the depth direction, and face each other near the upper ends of the left and right leg struts 1 arranged on the rear end side. A rear frame member 22 that connects the surfaces along the width direction and a reinforcing frame member 23 that connects the facing surfaces slightly rearward from the center of the left and right side frame members 21 along the width direction are provided. Therefore, the support S is self-supporting by being restrained together with the leg columns 1. As shown in FIG. 8, each of the frame members 21 and 22 is formed by cutting a common extruded product made of a rigid material such as aluminum into a required length, and the rail groove 2 is formed inward.
1a and 22a are opened, and inner walls 21b and 22b forming a pair are symmetrically formed between the top wall and the bottom wall of the square pipe. The frame member 23 is also formed by cutting a substantially similar extruded body made of a rigid material such as aluminum into a required length, and has rail grooves 23a opened on both sides. Top plate support fittings 4 having top plate support surfaces 4a are attached to the front and rear sides of the left and right side frame members 21, respectively, using the rail grooves 21a.
The top plate support fitting 4 having the top plate support surface 4a is attached also to the center of the rail using the rail groove 23a, and the top plate 3 is placed on the top plate support surface 4a of these five top plate support fittings 4 and the lower part is mounted. More screwed and fixed. The top plate 3 is configured such that a large number of top plate materials are superposed in the depth direction so that the wood grain appears in the width direction. Thus, the top plate 3 supports only the four corners and the central portion on the top plate support fitting 4. Even if only done, high strength can be exerted against the overloaded load.

3 and 4 show the upper corner portion on the side opposite to the use end of the desk in a state where the top plate 3 is not placed. In this embodiment, as shown in the figure, the side faces 1a, 1a of the square pipe-shaped strut body 11 forming the leg strut 1 are adjacent to each other.
To the arms 5 and 5 extending in a direction orthogonal to each other from b,
The side frame member 21 and the rear frame member 22 are slid and fitted to each other, and at the same time, the frame members 21 and 22 and the column main body 11 are fitted.
Are pressed and closely attached to each other at the joint surface R, and the pillar main body 1
A connection mechanism 6 configured to connect 1 to the frame members 21 and 22 is provided. At the corner portion of the desk on the side of use, as shown in FIG.
Only are connected.

The connecting mechanism 6 has a tightening means 7 for exerting a tightening force in a direction orthogonal to the sliding directions P, Q of the frame members 21, 22 by a tightening operation, and a tightening force exerted by the tightening means 7. The direction changing means 8 is provided to change the direction into a direction in which the frame members 21 and 22 are brought into close contact with the column body 11, that is, a force in the sliding directions P and Q of the frame members 21 and 22.

Explaining each part in detail, the arm 5 has a prismatic shape, and the mounting bolt B is used to form the base end surface 5b of the arm 5 and the backing member 9 to be inserted into the column main body 11. It is attached to the column main body 11 so that the side wall of the column main body 11 is pinched between them. Further, a long hole 51 extending in the longitudinal direction is penetrated through the side surface 5a. On the other hand, as shown in FIG. 6, the inner wall 21b of each of the frame members 21 and 22 is configured to substantially overlap with the elongated hole 51 in a side view while the frame members 21 and 22 are fitted onto each arm 5. Each long hole 25
Is provided. Thus, the surface 51a facing the joint surface side of the long hole 51 provided in the arm 5 has the long hole 25 of the frame members 21 and 22.
So as to project in the joint surface direction from the corresponding side surface 25b, and the surface 25a facing the anti-joint surface side of the elongated hole 25 projects in the anti-joint surface direction from the corresponding side surface 51c of the elongated hole 51 of the arm 5. Is set to.

In the elongated holes 51 and 25, the movable members 8 forming a pair with the frame members 21 and 22 fitted onto the arm 5 are fitted.
1, 82 are inserted. As shown in FIG. 4, each movable member 81, 82 has an elliptical longitudinal section, and one side surface 81a, 82a forming a curved surface is inclined so as to correspond to a tapered surface 51b described later. The other side surfaces 81b, 82b are recessed in a groove shape to engage a side surface of a pin 83 described later. A bolt insertion hole 81c through which the tightening bolt 71 is inserted is provided in the one movable member 81.
Is formed, and the other movable member 82 is formed with a screw hole 82c into which the tightening bolt 71 is screwed. The tightening bolt 71 and the screw hole 82c form the tightening means 7.

The surface 51a of the long hole 51 provided in the arm 5 facing the joint surface side is a pair of outward taper surfaces 5 inclined so as to gradually approach the joint surface R as described above.
1b and 51b are provided. And these tapered surfaces 5
The slanted side surfaces 81a and 82a of the movable members 81 and 82 are attached to the 1b and 51b, respectively.

The direction changing means 8 includes the movable members 8 described above.
1, 82, a surface 51a facing the joint surface side of the long hole 51 provided in the arm 5, and a surface 25a facing the non-joint surface side of the long hole 25 provided in the frame members 21 and 22. By the tightening operation of the tightening bolt 71 from the direction orthogonal to the sliding directions P and Q of the frame members 21 and 22, the movable members 81 and 82 are moved toward each other and the tapered surfaces are formed. It is configured to move along the joint surface R along 51b. That is, each movable member 8
The surface 51a facing the joint surface side is used as a scaffold for the first and the second members 82, and the surface 25a facing the non-joint surface side of the elongated holes 25 provided in the frame members 21 and 22 is pressed to fix the frame members 21 and 22 to the main pillar body. 11
I try to make it adhere to.

In this embodiment, the movable members 81, 82
A pin 83 which acts as a spacer is interposed between the surface and the surface 25a facing the non-bonding surface side. As a procedure for assembling the pin 83, the movable member 8 is placed in the long holes 51 and 25.
After inserting Nos. 1 and 82 into contact with the tapered surface 51b, the pin 8 is provided between the movable members 81 and 82 and the surface facing the non-bonding surface side.
I am trying to insert 3. If such a pin 83 is provided so that the movable member 81, 82 is configured to directly press the surface 25a facing the non-joint surface side, the protruding taper surface 51a interferes during assembly. This is because it becomes difficult to insert the movable members 81 and 82 into the long holes 51 and 25. Further, in the present embodiment, the surface 2 facing the non-bonding surface side of each elongated hole 25 provided on the inner side wall 21b forming a pair with the pin 83.
5a are pressed substantially evenly to form a joint surface R
A substantially uniform pressing force is applied to the whole.

Specifically, the side frame member 21 is attached to the column main body 11 using the connecting mechanism 6 as follows. First, as shown in FIG. 6, the arm 5 is attached to the pillar main body 11, and the arm 5 is slid and inserted between the inner side walls 21b of the frame member 21. Then, the movable members 81 and 82 are loosely connected to the overlapping long hole 51 and the long hole 25 with the tightening bolts 71, and are fitted from the rail groove 21a side, and the inclined surfaces 81a and 82a are attached to the tapered surfaces. Contact. After that, the pin 83 is inserted into the long hole 51 and the long hole 25 so as to be in contact with the side surfaces 81b and 82b of the movable members 81 and 82.

When the tightening bolt 71 is tightened from the side in this state shown in FIG. 7, as described above, the movable members 81 and 82 move toward each other and taper. It also moves toward the joint surface R along the surface 51b. Then, at this time, the movable members 81, 82 use the surface 51a facing the joint surface side as a scaffold to form the frame members 21, 2,
Since the surface 25a of the elongated hole 25 provided in 2 facing the side opposite to the bonding surface is pressed, the frame members 21 and 22 come into close contact with the column main body 11 as shown in FIG. The rear frame member 22 is used for the main body 11
The procedure for attaching to is the same. In addition, in FIG.
The side surface 1b of the column main body 11 and the end surface 21c of the frame member 21 are separated from each other, but this is for the purpose of making the operation of the frame member 21 easy to understand. I don't mind.

Therefore, according to the present embodiment constructed as described above, even if the tightening operation is performed, the frame members 21 and 22 are
Since a force other than the direction of bringing them into close contact with each other does not act, it is possible to connect them while maintaining the positional relationship between the column main body 11 and the frame members 21 and 22 set before the tightening operation accurately. You can easily. Further, since the load is supported by the joint surface R at the connecting portion, compared to the conventional structure in which the load is mainly supported at one side surface of the pipe member and the portion where the bolt is tightened, the structure is structurally improved. The strength can be improved.

The present invention is not limited to the above-described embodiment. For example, the movable member is expanded and deformed in the sliding direction by the tightening operation, and the surface facing the joint surface side is used as a scaffold for anti-joining. A configuration in which the surface facing the surface side is pressed is also conceivable. The configuration of each of the other parts is not limited to the illustrated example, and various modifications can be made.

[0023]

As described above in detail, in the desk according to the present invention, in order to connect the pipe members, the direction of the tightening force is changed so that the pipe members are brought into close contact with each other.
The pipe members are configured so as to be drawn to each other and connected to each other. Therefore, even if the tightening operation is performed for connecting the pipe members to each other, no force is exerted on the pipe members other than in the direction of bringing them into close contact with each other. It is possible to easily connect the pipe members to each other while keeping the positional relationship of (3) accurately. In addition, since the load is supported by the joint surface of the pipe members, the structure is connected structurally as compared to the conventional structure in which the load is mainly supported on one side surface of the pipe member where the bolt is tightened. The strength of the portion can be improved. In addition, it is possible to set the tightening operation direction by the direction changing means to a direction in which the operation is easy or a direction convenient in appearance regardless of the direction in which the pipe members are brought into close contact with each other. Furthermore
The other pipe by the pin that acts like a spacer.
The surface facing the anti-joint surface provided on the side wall forming a pair of members
Press almost evenly on each, and press almost uniformly on the entire joint surface
Forces can act.

Further, if the direction changing means is such that the pressing force acts substantially evenly on the entire joint surface of the pipe members in the connected state, it is possible to surely prevent the load from locally concentrating, and the connecting portion is connected. The strength can be further improved. The connecting mechanism is configured to slidably guide the other pipe member along the arm extended from the one pipe member, and the direction changing means has the joint surface side provided on the arm. Between the surface of the pipe member and the surface of the other pipe member facing the non-joint surface side, and the distance between the surfaces of the pipe member along with the tightening operation from the direction orthogonal to the sliding direction of the pipe member. With a movable member that moves or deforms so as to spread the key, the tightening operation can be performed from the side, assembly is facilitated, and the present invention can be embodied with a simple configuration.

Further, if the other pipe member is externally fitted to the arm, the pipe member can be effectively used and the arm can be hidden to improve the appearance.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a desk according to an embodiment of the present invention.

FIG. 2 is an overall perspective view showing a support body of the desk in the embodiment.

3 is a partially enlarged perspective view showing a corner portion on the side opposite to the use end in FIG.

FIG. 4 is an exploded perspective view showing a connecting mechanism in the embodiment.

FIG. 5 is a partial lateral cross-sectional view showing a connecting mechanism in the embodiment.

FIG. 6 is an operation explanatory view for explaining the operation of the connecting mechanism in the embodiment.

FIG. 7 is an operation explanation view explaining an operation of the connecting mechanism in the embodiment.

FIG. 8 is a front view showing a frame member in the example.

[Explanation of symbols]

1 ... Strut body 11 (pipe member) 21, 22 ... Frame material (pipe member) 25a ... A surface facing the non-bonded surface side 3 ... top plate 5 ... Arm 51a: surface facing the joint surface side 51b ... tapered surface 6 ... Connection mechanism 7 ... tightening means 71 ... bolt 8 ... Direction changing means 81, 82 ... Movable member S ... Support R ... Bonding surface P, Q ... Direction of close contact (sliding direction)

   ─────────────────────────────────────────────────── ─── Continued front page       (56) Reference JP-A-4-131512 (JP, A)                 Actual public Sho 61-24723 (JP, Y2)

Claims (2)

(57) [Claims] 1. A top plate and a support body for supporting the top plate, wherein the support body connects a plurality of pipe members through a connection mechanism, and the connection mechanism comprises: One of the pipes is provided with a tightening means for exerting a tightening force in a required direction by a tightening operation, and a direction changing means for converting the tightening force exerted by the tightening means into a force in a direction in which the pipe members are brought into close contact with each other. to member
While guiding the other pipe member in a fixed arm, der those connected by pressing close contact with these pipe members to each other at the bonding surface of one another is, the direction changing means, the bonding surface side provided in the arm Direction
Provided on the side wall that makes a pair of the face and the other pipe member.
Inserted between the surface facing the non-bonding surface side and used for the tightening operation.
Along with this, move to expand the distance between these faces or
Is equipped with a deformable movable member,
A role like a spacer between the surface facing the surface and the movable member.
A desk characterized by interposing a pin that fulfills the purpose. 2. A pair of movable members and a tightening means.
Distance between these movable members due to screwing back and forth of the constituent bolts
Is configured to be changeable, and each movable member is
The pair of tapered surfaces provided on the surface facing the joint surface side
Each is attached to the movable part by tightening the bolts.
By changing the distance between the members, each movable member can be
How to slide the other pipe member along the surface
So that the distance between each surface can be expanded
The desk according to claim 1, wherein the desk is configured as follows .