JPS6236430Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a leg structure for a kitchen table, etc., which has a high load capacity and allows the legs of the kitchen table to be easily assembled.

(b) Prior Art FIG. 3 is an enlarged sectional view of the main part showing the leg structure of a conventional kitchen table.

The leg structure of this kitchen table includes a pipe leg 1 that is integrally fixed to the four corners of the lower surface of the base plate, and a short middle cylinder 8 that is removably inserted into the pipe leg 1.
It is comprised of a supporting screw shaft 9 that is removably screwed into the middle cylinder 8. The pipe leg 1 has a bracket 4 protruding outwardly (fixed by welding) for placing an intermediate shelf board (not shown) at a proper position at the lower part, while screws are provided on the inner circumferential surface of the lower part of the intermediate tube 8. A groove 82 is provided, and the other supporting threaded shaft 9 is provided with a threaded rod portion 91 at one end that is appropriately screwed into the threaded groove 82.

In use, insert the middle tube into the pipe leg to support the pipe leg, screw the support screw shaft onto the middle tube, and attach the other end of the support screw shaft (placing part) that protrudes from the middle tube. ) is placed on the floor to support the load of the base plate and middle shelf.

(c) Problems to be solved by the invention In the above-mentioned conventional leg structure, the bracket is fixed to the pipe leg by welding. Therefore, this welding work is not only time-consuming, but also disadvantageous in that the bracket, which integrally projects outward from the pipe leg, is bulky when transporting the product. In addition, all the load applied to the middle shelf supported by the bracket acts on the pipe legs, causing disadvantages such as bending of the pipe legs. Furthermore, the middle tube is simply inserted into the pipe leg, that is, the middle tube is not fixed to the pipe leg. For this reason, the load on the base plate is not distributed to the middle tube, and is supported only by the pipe legs, which has the disadvantage of weak load-bearing strength. On the other hand, when the support screw shaft protrudes significantly downward, the distance increases between the lower end of the pipe leg and the mounting surface of the support screw shaft, resulting in extreme instability and disadvantages such as difficulty in adjusting the base plate height. It was hot.

This idea solves the above problems,
The purpose of the present invention is to provide a leg structure for a kitchen table or the like that has strong load-bearing strength and allows for stable base plate height adjustment.

(d) Means and action for solving the problem In order to achieve this purpose, the leg structure of the kitchen table, etc. of this invention has the following configuration.

The leg structure of kitchen tables, etc. is removably fixed to the base plate, and has a hollow pipe leg with an opening at the bottom and a bracket mounting hole at the appropriate length, and can be fitted and detached into the hollow pipe leg. A supporting piece is provided at the lower end to lock the pipe leg, a threaded groove is provided on the inner circumferential surface, and the upper part communicates with the bracket mounting hole of the pipe leg. A hollow cylinder with an opening at the bottom equipped with a fixing means for screwing a stop shaft inserted into the cylinder, and a screw fitted into the hollow cylinder so as to be able to move up and down, and screwed into the thread groove of the hollow cylinder at the top. and a support shaft for adjusting the base plate height.

In the leg structure of a kitchen table or the like having such a configuration, the pipe leg, the middle cylinder, the base plate height adjustment support shaft, and the bracket are each set to be separable. Then, when the middle tube is inserted into the pipe leg, the bracket mounting hole of the pipe leg and the fixing means of the middle tube (for example, a bolt insertion hole and a bolt fastening nut) are set to be in compatible positions. There is. Therefore, when the bracket is brought into contact with the pipe leg, the bolt hole of the bracket communicates with the bracket mounting hole of the pipe leg, and the stop shaft is inserted from the outside of the bracket, the tip of the stop shaft is inserted into the middle tube. It engages with the fixing means (nut), and the bracket, pipe leg, and inner tube are fixedly fixed. Further, since the support shaft for adjusting the height of the base plate is screwed into the thread groove of the middle cylinder so that it can be raised and lowered, the height of the base plate can be adjusted easily and stably. Further, the load applied to the base plate and the load applied to the middle shelf board are distributed and received by the bracket, the pipe leg, and the middle tube, respectively, thereby providing a leg structure with high load resistance.

(E) Embodiment FIG. 1 is a perspective view showing a specific embodiment of the leg structure of a kitchen table or the like according to this invention.

The leg structure of a kitchen table etc. consists of a pipe leg 1 detachably attached to the four corners of the lower surface of the base plate 7, a middle tube 2 detachably installed on the pipe leg 1, and a middle tube 2.
A bracket 4 is removably attached to the pipe leg 1 (see Fig. 2), and a protruding support piece 41 of each bracket 4 is provided. They are connected by a frame pipe 61, and the middle shelf board 6 is placed on this frame pipe 61.

FIG. 2 is an enlarged cross-sectional view of essential parts showing how the pipe leg 1, the middle tube 2, the base plate height adjustment support shaft 3, and the bracket 4 are attached.

The pipe leg 1 is a hollow cylindrical body with an open bottom, and a hole 11 for attaching a bracket is opened at an appropriate length, at a position where the middle shelf board 6 is attached in the embodiment.

The middle cylinder 2 is a hollow cylinder having an outer diameter that approximately matches the inner diameter of the pipe leg 1 and having an open lower end. In addition, when the middle tube 2 is fitted into the pipe leg 1, the tip end is connected to the bracket mounting hole 11.
The length is set to exceed. A collar plate-shaped support piece 21 is provided at the lower end of the middle cylinder 2 to project outward, and the support piece 21 supports and locks the lower end of the pipe leg 1. Furthermore, a fixing means corresponding to the bracket mounting hole 11 is provided at the upper part of the middle cylinder 2. In the embodiment, this fixing means is a recessed portion 23 that is recessed inwardly corresponding to the bracket mounting hole 11.
A bottom hole 24 communicating with the bracket mounting hole 11 is formed in the bottom wall of this concave part 23, and a nut 25 for fixing a stop shaft 5, which will be described later, is fitted and fixed in the concave part 23. It has been done. Furthermore, the middle tube 2
A threaded groove 22 is provided from the inner circumferential surface of the recessed portion 23 to the lower end opening, so that a support shaft 3 for adjusting the height of the base plate, which will be described later, can be screwed therein.

The above-mentioned support shaft 3 for base plate height adjustment has a large-diameter shaft head 32 on the upper part (tip part) of the cylindrical shaft, and a threaded portion screwed into the thread groove 22 on the outer periphery of this shaft head 32. 31 is provided, and can be moved in and out of the middle cylinder 2 (can be raised and lowered)
is set to . The lower end of this support shaft 3 is placed on the floor to support the base plate 7.

The bracket 4 has a hole (through hole) 42 for inserting the stop shaft 5 therein, and protruding support pieces 41 for connecting the frame pipe 61 are provided on both sides thereof. The bracket 4 is integrally fixed to the pipe leg 1 and the middle cylinder 2 by a stop shaft (bolt) 5.

In the leg structure of a kitchen table or the like having such a configuration, the pipe leg 1, the middle cylinder 2, the base plate height adjustment support shaft 3, and the bracket 4 are each set to be separable, and the product (kitchen table) It is easy to transport without being bulky. When assembling the kitchen table, use the base plate 7.
Attach the tip (upper end) of the pipe leg 1 to the receiving cylinders provided at the four corners of the lower surface of the pipe (see Figure 1). Thereafter, the middle tube 2 is fitted into the pipe leg 1, and the support piece 21 is brought into contact with the lower end of the pipe leg 1. At this time, the concave portion 23 provided at the tip of the middle cylinder 2 is appropriately positioned in the bracket mounting hole 11. Here, after placing the bracket 4 on the pipe leg 1 and making the stop shaft insertion hole 42 of the bracket 4 communicate with the bracket mounting hole 11, the stop shaft 5 is inserted from the outside of the bracket 4 (second (see figure). As a result, the tip of the stop shaft 5 is screwed onto the fixing means (nut) 25, and the bracket 4 is fixed to the pipe leg 1.
and the middle cylinder 2 are fixed together. put it here,
The load applied to the base plate 7 and the load applied to the middle shelf board 6 are distributed and supported by the bracket 4, the pipe legs 1 and the middle cylinder 2, and the load-bearing strength of the leg structure is increased.
Further, the base plate height adjustment support shaft 3 is inserted into the middle cylinder 2, and the threaded portion 31 is screwed into the threaded groove 22. The threaded groove 22 is long in the longitudinal direction of the middle tube 2 (from the bottom of the recessed part 23 to the lower end opening), and the threaded part 31 can penetrate deeply into the middle tube 2, allowing the threaded part 31 to penetrate deeply into the middle tube 2. Stability is maintained. Therefore, even if the adjustment support shaft 3 is made to protrude in the direction of the floor from the middle tube 2 and the height of the base plate 6 is set high relative to the floor, the stable state of the pipe leg 1 cannot be maintained. It becomes possible to hold the

In addition, in the embodiment, each stop shaft 5 insertion hole, 42, 11, 24 of the bracket 4, pipe leg 1, and middle tube 2 is
Although an example is shown in which the holes 42, 11, 24 are set in the horizontal direction, in actual implementation, the holes 42, 11, 24
may be set to be inclined in the direction of the inner cylinder 2, and in this case, the insertion work of the stop shaft 5 is made more convenient.

(F) Effects of the device As described above, in this device, the pipe leg, middle tube, support shaft for adjusting the base plate height, and bracket can be separated, and the pipe leg, middle tube, and bracket can be separated using the stop shaft. Since it is fixed as one piece and the support shaft for adjusting the base plate height is screwably arranged on the middle cylinder, the leg structure components can be separated and transported, making it easy to transport without being bulky. . In addition, the bracket, pipe legs, and middle tube cannot be easily fixed together with a stopper shaft, but the load on the base plate and middle shelf board is distributed and supported, increasing the load-bearing capacity of the leg structure. be done. Furthermore, it is possible to freely and stably screw the support shaft for adjusting the height of the base plate relative to the middle cylinder, and the base plate can be set at any height relative to the floor, which has achieved the purpose of the invention. With excellent effect achieved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the leg structure of the example kitchen table, etc. Fig. 2 is an enlarged cross-sectional view of the main parts showing the state in which the pipe leg, middle cylinder, and bracket are integrally fixed with a stopper shaft, Fig. 3 1 is an enlarged cross-sectional view of a main part showing the leg structure of a conventional kitchen table. 1: Pipe leg, 2: Hollow cylinder, 3: Support shaft for base plate height adjustment, 4: Bracket, 5: Stop shaft.

Claims (1)

[Scope of utility model registration request] A hollow pipe leg is removably fixed to the base plate, is open at the bottom, and has a bracket mounting hole at an appropriate length. A support piece for locking the pipe leg is provided, a thread groove is provided on the inner peripheral surface, and the upper part communicates with the bracket mounting hole of the pipe leg, and a stop shaft inserted into the bracket hole is screwed. The height of the base plate includes a hollow cylinder with an opening at the bottom and a fixing means for attaching the cylinder, and a base plate that is fitted into the hollow cylinder so that it can be raised and lowered, and has a threaded part on the upper part that is screwed into the thread groove of the hollow cylinder. A leg structure for a kitchen table, etc., consisting of an adjustment support shaft.