JPH0520170Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a table in which the height of the table base can be increased or decreased by changing the angle of the legs relative to the table base.

[Conventional technology]

A conventional example of this type of table stand is shown in the sixth section.
It is shown in the figure. In this conventional example, gate-shaped arms 2, 2 are supported vertically swingably in correspondence with both ends of the back side of the table base 1, and separate leg body 3,
The intermediate portions of the legs 3 are connected vertically swingably, and the distance between the connecting point 4 and the arm 2 is longer than the length from the connecting point 4 of the leg 3 to the one end 3a of the leg 3. Shorten the length to the other end 3b,
Further, locking tools 5, 5 are provided at two locations on the back side of the table base 1. In addition, the leg body 3,
3 has two pillars each, and is configured in a rectangular shape with a rod horizontally suspended between the corresponding ends of the pillars, and the width of the leg 3 on one side is narrow. On the other hand, make the leg 3 on the other side wider, and make the leg 3 on the other side wider.
The structure is such that the legs can be inserted into the wide legs 3 in a crosswise manner.

According to this table, when the other ends 3b, 3b of the legs 3, 3 are locked to the corresponding locking tools 5, 5, the legs 3, 3 becomes a seating part, and the height H from the seating part to the table base 1 becomes high. The legs 3, 3 are reversed as shown by the arrows X, stopper 5,
5, the other ends 3b, 3b of the legs 3, 3
becomes the seating part, and the height h from the seating part to the table base 1 is reduced.

[The problem that the idea attempts to solve]

However, when changing the height of the conventional table mentioned above, it is necessary to flip the legs 3, 3 to an angle of 180 degrees or close to it. It was a hassle to have to turn it over.

In addition, for example, when lowering the height, the one ends 3a, 3a of the legs 3, 3, which have been in contact with the floor and functioned as a seating part, may remain covered with dust and germs from the floor. Since it is locked by the locking tool 5 and placed on the back side of the table base 1, one end portion 3a,
Considering that people may touch 3a, it is extremely unsanitary. The same thing can be said when increasing the height.

Also, since one end 3a and the other end 3b of the leg body 3 are used as a seating part or as a locking part with a locking tool 5, both ends 3a and 3b have a seating part for stably supporting the table. It is necessary to have a structure as shown in FIG.

Furthermore, when changing the height of the table base 1, it is necessary to cross the other end 3b of the leg 3 with the arm 2, so the arm 2 must be made wider than the leg 3, which is constrained in terms of structure. This increases material costs.

Furthermore, since it is necessary for the one ends 3a of the legs 3, 3 to intersect with each other when changing the height of the table base 1, the width of the one end 3a of the legs on one side is changed from that of the legs on the other side as described above. Since the width must be narrower than the width of the body, it is not possible to make the widths of the one end portions 3a of both legs the same, and if the one end portion 3a is used as a seating portion, it is likely to become unstable.

In addition, the free end of the arm 2 must be connected to the outside of the leg 3 in order to allow the leg 3 to be turned over, which makes the free end of the arm 2 noticeable and unsightly, thereby reducing aesthetic appeal. is damaged.

As mentioned above, conventional tables have problems with workability when adjusting the height, hygiene, structure, stability, and even aesthetics.

This invention was devised to solve the above problems, and not only improves the workability of height adjustment, but also improves hygiene, structure, stability, and aesthetics, and also reduces the number of parts. To provide a table capable of stably maintaining a predetermined height no matter what height the table base is adjusted to while reducing costs.

[Means to solve the problem]

In order to achieve the above object, the table according to the present invention includes a pair of arms swingably supported on the back side of the table base, and an intermediate portion of the arms swingably supported at the free end of each of these arms. and left and right legs each having a seating portion formed at one end, and left and right locking tools attached to the back side of the table base at two locations corresponding to these legs and inside the support portion of the arm. The left and right locking devices each have a horizontally outward opening having a horizontally extending projecting piece so that the other ends of the legs on each of the left and right sides can be locked and released when the table base is raised. A high-position locking device and a low-position locking device with a horizontally inward opening and a protrusion extending in the horizontal direction so that the other ends of the legs on the opposite left and right sides can be engaged and released when the table base is lowered. are formed in one piece.

[Effect]

In the table with the above configuration, by locking the other ends of the left and right legs to the high-level locking devices of the left and right locking devices corresponding to the respective legs, the table base can be made higher, and the left and right legs can be raised. The table base can be lowered by locking the other ends of the legs to the lower locking devices of the locking devices on the opposite sides, respectively. In addition, regardless of whether the table stand is set at a high or low height, one end of the legs serves as a seating section, and there is no need to touch the seating section, which is sanitary. In addition, each of the left and right locking devices is formed by integrally forming a high-level locking device and a low-level locking device, so the number of parts can be reduced, reducing costs and making installation easier. It becomes easy. Furthermore, since each locking tool has a horizontal opening with a protrusion extending horizontally, the other end of the leg can be raised and
Even if vibrations, shocks, etc. are applied, the other end of the leg will not easily come off when it is held in place by either of the low-level locking devices, and the specified height will be stable. maintained.

〔Example〕

FIG. 1 is a perspective view of a table according to an embodiment of the present invention, viewed diagonally from below. Although the table base 1 in the figure is rectangular, it may be oval, polygonal other than rectangular, etc.
Various shapes can be selected. The pair of arms 2 are made by welding support rods 10' to both ends of a metal bar or pipe material (hereinafter collectively referred to as pipe material) 10 bent into a U-shape, and are formed by welding support rods 10' to the back side of the table base 1. The pipe material 10 is vertically swingably supported in correspondence with a U-shaped fixture 12 that is fixed using a fastener such as a screw.

Although not shown, the mounting tool 12 is attached to the horizontal portion 1
The horizontal part 1 has a protrusion to prevent the table 0a from coming off, and the horizontal part 1 is
0a, and in such a state that it is fitted into the horizontal portion 10a, the protrusion engages with the horizontal portion 10a to prevent the fixture 12 from falling off from the horizontal portion 10a. Therefore, the fixture 12 can be fixed to the back surface of the table base 1 without worrying that the fixture 12 will fall off from the horizontal portion 10a.

The legs 3 are made of metal bars or pipes (hereinafter collectively referred to as pipe materials) 1 that are bent into a U-shape.
A horizontal rod 13' is welded between both ends of the rod 3. One end portion 3a of the leg body 3 on which the horizontal rod 13' is horizontally suspended serves as a seating portion. Also, leg 3
That is, the middle part of the front and rear pillars 13a and 13b formed of the pipe material 13 is attached to both ends of the support rod 13' provided at the free end of the arm 2. 3 and 3 are supported in a vertically swingable manner.

On the other hand, the other end 3b of the leg 3, that is, the horizontal part 13c of the pipe material 13, is movable, and the table pedestal is placed at two locations in the corresponding directions of the legs 3, 3 on the back side of the table pedestal 1. The horizontal part 13c (other end 3b) is engaged and disengaged when the table base 1 is raised, and the horizontal part 13c (the other end 3b) is engaged and disengaged when the table base 1 is lowered. Left and right locking devices 16, which are integrally molded with a lower locking device 15 of synthetic resin, are fixed to the inner side of the support portion of the arm 2 using fasteners such as screws.

As is clear from FIG. 1, the arm 2, leg body 3, and locking tool 16 described above are provided at symmetrical positions on the back surface of the table base 1. In addition, the high-position locking tool 14 in the integrally molded locking tool 16
As shown in an enlarged view in FIG.
By pushing the horizontal part 13c against elasticity,
The projecting piece 14a that embraces the horizontal portion 13c and this 14
It consists of a protrusion 14b formed at a position opposite to a, and opens laterally outward. Furthermore, like the high-level locking device 14, the low-level locking device 15 also includes a projecting piece 15a and a protrusion 15b, and opens laterally inward in the opposite direction to the high-level locking device 14. .

Further, the width a of the leg 3 on one side shown in FIG. 4 is narrower than the width A of the leg 3 on the other side, and the narrower leg 3 is extended from the other end 3b side as shown in the same figure. It is attached so that it can be inserted into the wide leg body 3 and cross both. However, the length L of the horizontal rod as a seating part that is suspended horizontally on one end 3a of the narrow leg 3, and the horizontal rod as a seating part that is horizontally suspended on one end 3d of the wide leg 3. The lengths l are the same.

In the table described above, as shown by solid lines in FIGS. 1 and 2, the other end 3b of the leg 3 on one side is pushed into the corresponding high-level locking tool 14 to set it, and the leg on the other side is set. Other end 3 of body 3
When the table b is pushed into the corresponding high-level locking tool 14 and set, the first height H of the table increases. When setting the other end 3b of the leg 3 into the high-position locking tool 14, the other end 3b of the leg 3, that is, the horizontal portion 13c of the pipe material 13, is pushed into the high-position locking tool 14, as shown by the arrow Y in FIG. The protruding piece 14 on the locking tool 14
Press the protrusion 14b using the elasticity of the protrusion 14b.
get over it. After the horizontal portion 13c is pushed into the high-level locking tool 14, the projecting piece 1
4a prevents the horizontal portion 13c from falling off, thereby stabilizing the set state, and there is no fear that the leg 3 will wobble or easily come off the high-position locking device 14. Also, one end portions 3a, 3 of the left and right legs 3, 3
Since the horizontal rods 13' and 13' forming the seating part a have the same lengths L and l, the table is stable.

The other end 3 of the leg 3 in the direction shown by arrow Z in FIG.
When b is strongly pulled, the horizontal portion 13c is pulled out from the high-level locking tool 14.

As shown by the imaginary lines in FIG.
When the other end 3b of the leg 3 on the other side is pushed into the corresponding lower locking tool 15 and set, the height h of the table base 1 is set.
becomes lower. The operation of pushing the other end 3b of the leg 3 into the lower locking tool 15 and setting it is similar to that described above with reference to FIG. Therefore, even when the table is lowered, the set state of the legs 3 is stable, and there is no fear that the legs 3 will wobble or easily come off the low-position locking tool 15.
Further, since seating is done by the horizontal bars 13', 13', the table is stable.

In this example, we have described a table that can adjust the table base to two height levels; however, by increasing the number of locking devices, it is possible to adjust the height to more than two levels. It is. Also,
It is also possible to completely lay (fold) the left and right legs 3, 3 on the back side of the table base 1. Further, the horizontal rod 13' of the leg 3 may be omitted, and instead, both ends of the pipe material 13 may be covered with rubber caps or the like. In addition, three or more legs may be provided.

[Effect of idea]

As described above, according to the table of the present invention, the height of the table changes depending on which locking tool the other end of the leg is engaged with, and furthermore, the seating portion is limited to one end of the leg. This eliminates the need to lay the table sideways or turn it over when adjusting the height, eliminating the hassle of height adjustment compared to conventional models, and at the same time, the seating section is placed on the back side of the table base. It is hygienic because there is no Also,
Since there is no need to cross the seating parts of the legs when adjusting the height, the width of the seating parts can be made the same size, and the free end of the arm is connected to the leg inside the leg. This improves stability and avoids a situation where the free end of the arm stands out and becomes unsightly.

In addition to the above-mentioned effects such as improved workability in height adjustment, hygiene, stability, and aesthetics, the present invention has the following special effects.

In other words, each of the left and right legs can be manufactured with one end serving as a seating part and the other end serving as a locking part, and when changing the height of the table, the other end of the leg Since there is no need to intersect the legs and arms, the overall structure including the legs and arms can be simplified.

Moreover, since each of the left and right locking devices is formed by integrally forming a high-level locking device and a low-level locking device, fewer parts are required to change the height, reducing costs. In addition to being easy to install, it is also easy to install. In addition, since each locking device has a horizontal opening with a projecting piece extending in the horizontal direction, the other end of the leg body can be locked in such a way that it is hugged by both the high and low locking devices. In this state, even if vibrations, shocks, etc. are applied, the other end of the leg is difficult to separate, and the table can be firmly and stably maintained at either height.
It can be suitably used as a variety of tables such as dining tables, desks, and stands for audio equipment.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a table according to an embodiment of the present invention viewed from below, Fig. 2 is a side view of the same, Fig. 3 is an enlarged side view of the locking device, and Fig. 4 is the dimensional relationship between the left and right legs. FIG. 5 is a side view of a conventional table. 1... Table base, 2... Arm, 3... Leg, 3a... One end of the leg (seating part), 3b...
The other end of the leg (locking part), 14... High-level locking tool,
14a... Projection piece, 15... Low-level locking tool, 15a
... protrusion, 16 ... locking tool.

Claims (1)

[Scope of utility model registration request] A pair of arms swingably supported on the back side of the table base, and left and right legs whose intermediate portions are swingably supported at the free ends of each of these arms and a seating portion is formed at one end. On the back side of the table base in two places corresponding to these legs,
Left and right locking tools are installed inside the support part of the arm, and the left and right locking tools are such that when the table base is raised, the other ends of the legs on the left and right sides are engaged and released. A high-level locking device with a horizontally outward opening that has a horizontally extending projecting piece and a horizontally extending locking device that allows the other ends of the opposite left and right legs to be engaged and released when the table base is lowered. 1. A table characterized in that it is integrally formed with a lower-position locking tool having a laterally inward opening and having a projecting piece extending from the side.