JPS62170208A - Table having long and short legs - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a table having long legs and a short aim, and in particular, the rotation center of the long legs and short legs can be moved in either the outward or outward direction and/or the face plate. By making the back side approach and separating in different directions, it is possible to switch between long legs and short legs on a single table, improving usability and simplifying the configuration to reduce costs. Relating to a table with legs.

[Conventional technology]

Conventionally, some tables have foldable legs for convenience when not in use. Additionally, the folding mechanism of the legs has been simplified to reduce weight and improve transport and storage operations.

[Problem that the invention seeks to solve]

By the way, in the conventional table, there is no single table that can be switched between long legs and short legs, and it is necessary to have a table with long legs and a table with short legs, respectively, depending on the purpose.

As a result, it is not only expensive and economically disadvantageous to provide tables with long legs and tables with short legs, but also requires a large amount of storage space. It is difficult to use because it has to be used separately from the table.
This has the disadvantage of being disadvantageous in practical terms.

[Purpose of the invention]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned inconvenience, an object of the present invention is to move the center of rotation of the long legs that are foldably provided on the back of the face plate to either the inner or outer direction with respect to the center of rotation of the short legs, and/or By moving the back surface of the face plate in one of the contact and separation directions, the short leg is engaged with the eldest man when the long leg is raised, and only the short leg is raised when the short leg is raised. Long legs and short legs that make it possible to switch between long legs and short legs on an m-table, make it easier to stand up the long legs and short legs, improve usability, and simplify the configuration to reduce costs. To realize a table with

[Means for solving problems]

In order to achieve this object, the present invention has a long leg and a short leg erected on the back surface of a face plate so that they can be folded inwardly, and the center of rotation of the long leg is set in the inner and outer direction with respect to the center of rotation of the short leg. and/or moved in either one of the directions of contact and separation of the back surface of the face plate.

[Effect]

With the above configuration, when standing on long legs,
The short leg should be engaged with the long leg (relatively moved, and the short leg should be stood up at the same time as the long leg is standing up, to tighten up the standing position, and when the short leg is standing up, only the short leg should be stood up, and the short leg should be engaged with the long leg). It is possible to switch between long legs and short legs in one table,
We are trying to improve usability.

〔Example〕

Embodiments of the present invention will be described in detail below based on the drawings.

1 to 5 show a first embodiment of the invention.

In Figures 1 to 5, 2 is a table.

For example, one long leg 6.
6 and the other opposing long leg (not shown) are configured to be foldable inwardly by hinges 8.8. Also,
A first crosspiece 10 is installed at the center height position between the long legs 6.6 in order to simultaneously raise and lower the long legs 6.6, and a second crosspiece 12 is installed at the upper position in FIG. It is connected. Further, short legs 14.14 are interposed between the long legs 6.6, and hinges 16.16 are attached to the lower portions of the short legs 14.14 so as to be foldable inwardly. The upper parts of the legs 14 and 14 are connected by the crosspiece 18 so as to raise and lower at the same time. In addition, a pair of first,
The first and second transmission rods 20-1.20-2 are connected by a second transmission rod 20-1.20-2.22-1.22-2.
．． 22-1 and 22-2 are rotatably provided, and the connecting portions are connected by an operating rod 24.

At this time, as shown in FIG. 4.5, the rotation center A of the long leg 6 is moved inward, for example, with respect to the rotation center B of the short leg 14, and the rotation center of the long leg 6 is The height position of A is lower than the center of rotation B of the short legs 14, that is, it is configured to be close to the back surface of the face plate of the table 2 in the direction of approach and separation. In addition, an engagement groove 26 is formed at the tip 14a of the short leg 14, which is perpendicular to the up-and-down direction of the leg, and as shown in FIG. It is configured to engage with the lower part 10a of the crosspiece 10 to prevent rocking.

Reference numeral 28 is a holding mechanism that engages with the second crosspiece 12 of the long leg 6 to keep the long leg 6 in a state of being held in a lowered position; The provided fixing mechanism is, for example, a hook.

Next, the effect will be explained.

When the long legs 6 are standing up, the long legs 6 are held and rotated around the rotation center A to stand up, and the short legs 14 are also rotated around the rotation center B in accordance with the standing up operation of the long legs 6. It is something that stands up. That is, as shown in FIG. 4, the short legs 14 move relatively to the first crosspiece 10 side of the long legs 6 to engage with the long legs 6, and the lower part of the first crosspiece 10 is moved as shown in FIG. 10a is engaged with the engagement 'a26 formed at the tip 14a of the short leg 14, thereby preventing the pair of first and second transmission rods 20-1.20-2.22-1.22-2 from swinging. The short legs 14 are also made to stand up in synchronization with the standing up movements of the long legs 6. At this time, the first and second transmission rods 20-
1.20-2.22-1.22-2 tension stop position,
In this embodiment, the position is above the top dead center, but it may be configured to exceed the top dead center.

Furthermore, when the short legs 14 are operated to stand up, as shown in FIG.
By holding and rotating the operating rod 24, the pair of first,
By tensioning the second transmission rod 20-1.20-2.22-1.22-2, only the short leg 14 rotates around the rotation center B and stands up.

As a result, when the long legs are raised, the short legs are engaged with the long legs, and when the short legs are raised, only the short legs are raised, so that the long legs and short legs can be used interchangeably on a single table. The long and short legs can be easily stood up to improve usability, and the configuration can be simplified to reduce costs.

Here, the movement of the long legs 6 and short legs 14 due to the standing motion will be described in detail along FIGS. 6 to 9.

In FIGS. 6 to 9, when triangles ACD and BCD having a common side CD with a length l are rotated by 90 degrees around the rotation centers A and B of the long leg 6 and the short leg 14, respectively. Let the moving point of point C with A as the center of rotation be 01, and the moving point of the dot be ri. Further, the moving point of point C with B as the center of rotation is assumed to be 02, and the moving point of the dot is assumed to be D2. At this time, since the point C is on the horizontal line of the rotation center A, when ΔACD rotates by 90 degrees, the moving point C1 moves on the perpendicular to the rotation center A. Further, let E be the intersection of the horizontal line of the center of rotation B and the side CD.

CE represents the height difference between rotation centers A and B, and this height difference is y
shall be. When ΔBCD rotates by 90'', point E on the horizontal line of rotation center B moves to the perpendicular line of rotation center B. Therefore, let the horizontal difference between point C1 and point E° be X, and this difference represents the center difference between the rotation centers A and B.

Then, due to C2E'=7, The horizontal movement difference clc2 of point C is z+y, Similarly, the difference in dot movement DID2 is also x+y.

FIG. 6 shows a state where x=y, and due to x+y, sides C, D, and side C2D2 are located on the same horizontal line.

FIG. 7 shows a state where x>y, and because of x>y, sides C and DI and side C2D2 are not located on the same horizontal line.

FIG. 8 shows a state where y=o.

FIG. 9 shows the state where x=0.

Figure 10.11 shows a second embodiment of the invention. In this second embodiment, parts that perform the same functions as those in the first embodiment described above will be described with the same reference numerals.

The feature of this second embodiment is that independent long legs 6 and short legs 14 are provided on the back surface of the face plate 4 of the table 2.

That is, between the long legs 6 and the short legs 14, for example, a ball catcher 32 is provided as a fixing mechanism for the short legs 14 to the long legs 6.
will be established. The ball catcher 32 includes, for example, a hole 34 formed in the long leg 6, a ball 36 provided in the hole 34, a spring 38 that presses the ball 36 toward the short leg 14, and a side of the long leg 6. A locking body 40 fixed to prevent the ball 36 from protruding excessively from the end face, and the ball 36
The ball receiver formed on the short leg 14 in order to fit into and sink into the part 42
It consists of.

If configured as in the second embodiment described above, when the long legs 6 are used, by rotating the long legs 6 in the direction of the arrow, the long legs 6 and the short legs 1 locked by the ball catcher 32 can be moved.
4 stand up at the same time. In addition, when using the short legs 14, the locking state between the long legs 6 and the short legs 14 is released and the short legs 14 are used.
By rotating only the short legs 4 in the direction of the arrow, only the short legs 14 can be erected.

Thereby, in a single table having independent long legs 6 and short legs 14, it is possible to switch between the long legs and the short legs, and it is also possible to facilitate the operation of standing up the long legs and the short legs.

Note that this invention is not limited to the above-mentioned first and second embodiments, and can be modified in various ways.

For example, in the first embodiment of the present invention, as shown in FIG. 4.5, the rotation center A of the long leg 6 is moved inward with respect to the rotation center B of the short leg 14, ,
The height position of the rotation center A of the long leg 6 is the rotation center B of the short leg 14.
, that is, close to the back surface of the face plate of the table 2, but the rotation center A of the long legs 6 can be moved outward with respect to the rotation center B of the short legs 14. As shown in FIG. 12, it is also possible to move only the rotation center A of the long leg 6 inwardly by a distance y with respect to the rotation center B of the short ya 14, as in the first embodiment described above. , it becomes possible to switch between the long legs and the short legs on a single table, making it easier to stand up the long legs and the short legs, and improving usability.

In addition, in the first embodiment of the present invention, an engagement groove 26 is formed at the tip 14a of the short leg 14 and is perpendicular to the up-and-down direction of the leg. Although it is configured to engage with the lower part IQa of the crosspiece 10 and prevent rocking,
As shown in FIG. 13, an engagement groove 52 is formed on the back side of the face plate at the tip 50a of the short leg 50, which is perpendicular to the up-and-down direction of the leg. The hook portion 54 provided on one crosspiece 10 may be configured to engage with the engagement groove 52 from the back side of the face plate to prevent the short legs 50 from swinging.

〔Effect of the invention〕

As described in detail above, according to the present invention, the rotation center of the long leg foldably installed on the back surface of the face plate can be moved either in the inner or outer direction with respect to the rotation center of the short leg, and/or on the back surface of the face plate. Since the structure is such that the short legs are moved in either of the approaching and separating directions, when the long legs are raised, the short legs are engaged with the long legs to stand up, and when the short legs are raised, only the short legs are raised, and the single It may be possible to switch between long legs and short legs on the table. Moreover, it is possible to improve usability by facilitating the operation of standing up the long legs and short legs, and it is also possible to simplify the configuration and reduce costs. Furthermore, if the long legs and short legs are made of wood, the weight of the table can be reduced, which is advantageous in practice.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the present invention, FIG. 1 is a perspective view of the table with its legs upright, FIG. 2 is a perspective view of the table with its legs laid down, and FIG. The figure is a side view showing the short legs standing up, Figure 4 is a side view showing the long legs and short legs engaged, and Figure 5 is the center of rotation of the long legs and short legs. The schematic explanatory diagrams and FIGS. 6 to 9 are explanatory diagrams showing the positional relationship of the rotation centers of the long legs and the short legs, respectively. Figure 10.11 shows a second embodiment of the invention;
The figure is a perspective view of a table with independent long legs and short legs.
FIG. 11 is a cross-sectional view showing the long legs and short legs in a locked state. FIGS. 12 and 13 are schematic explanatory diagrams of respective rotation center positions of long legs and short legs showing another embodiment of the present invention. In the figure, 2 is the table, 4 is the face plate, 6 is the eldest, 8 is the hinge, 10 is the first crosspiece, 12 is the second crosspiece, 14 is the short leg, 16 is the hinge, 18 is the crosspiece, 20-1.20 -2 is the first transmission rod, 22
-1.22-2 is a second transmission rod, 24 is an operating rod, 26 is an engagement groove, 28 is a holding mechanism, and 30 is a hook. Patent Applicant Shinai Giken Co., Ltd. Agent Patent Attorney Yoshimi Nishigo Figure 1 Figure 2 f4 Figure 4 Figure 5 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] A long leg and a short leg are erected so as to be foldable inward on the back surface of the face plate, and the center of rotation of the long leg is set in either the inner or outer direction with respect to the center of rotation of the short leg, and/or the back surface of the face plate is A table having long legs and short legs, characterized in that the legs are moved in one of the approaching and separating directions.