JPH0866241A - Table - Google Patents

Abstract

PURPOSE: To provide the table which simplifies structure and can be easily collapsed. CONSTITUTION: One end part of a freely stretchable arm 6, which inserts an inner pipe 8 to an outer pipe 7 so as to freely slide it, is freely turnably linked through a link rod 3 to a pair of legs 2 and 2 equipped with ground members 4 at their lower ends. The upper end parts of respective legs 2 and the other end parts of respective arms 6 are freely turnably linked to the lower surface of a top panel 1, and a stopper device 9 is provided to lock the stretch of arms 6 in the horizontal state of the top panel 1. When the top panel 1 is turned in a direction to be erected the arms 6 are oscillated in a direction so as to be erected around the link rod 3 while being extended in relation with the inclination of the top panel 1, and the table can be easily collapsed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable table.

[0002]

2. Description of the Related Art As a table of this type, the actual fair 2-2
The one shown in Japanese Patent No. 7785 is known. In this table, the top plate is supported by the front leg and the rear leg, and when used, the top plate is in a horizontal state, and when it is not needed, the top plate is erected in a vertical state. In relation to the tilting of the top plate, the front and rear legs are kept parallel to each other and relatively moved in the approaching direction so that they can be stored compactly.

[0003]

However, in such a table as described above, it is necessary to provide a link between the front leg and the rear leg in order to move the front and rear legs while maintaining the parallel state. Yes, the structure becomes complicated.

Therefore, an object of the present invention is to provide a table which has a simple structure and can be easily folded.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a plurality of self-supporting pedestals, each of which has an extendable arm in which an inner pipe is slidably inserted into an outer pipe. One end is rotatably connected, and the upper end of each pedestal and the other end of each arm are rotatably connected to the lower surface of the horizontal top plate with a front-rear spacing at a distance. The stopper device is provided to lock the expansion and contraction of the arm in the horizontal state of the plate.

[0006] Further, each one end of an extendable arm having an inner pipe slidably inserted in an outer pipe is rotatably connected to a connecting member for connecting a plurality of self-supporting pedestals, and each leg is connected. A stopper device that connects the upper end of the pillar and the other end of each arm rotatably to the lower surface of the top plate in a horizontal state with a front-rear interval at a distance, and locks the extension and contraction of the arm in the horizontal state of the top plate. May be provided.

[0007]

When the table according to the present invention is folded, when the table is rotated in the direction in which the table is erected, the arm extends or contracts in association with the tilting of the table, and the connecting portion with the pedestal or the connecting member. It swings in the upright direction around.

When using the table, the top plate is rotated in a horizontal direction. With the tilting of the top plate, the arm contracts or extends, and swings in the direction in which the corner between the pedestal or the pedestal and the coupling with the pedestal opens. Then, when the top plate becomes horizontal, the extension and contraction of the arm is locked by the stopper device, and the top plate is stably supported by the pedestal and the arm.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show a first embodiment. As shown in the figure, the pair of pedestals 2 supporting the top plate 1 includes a connecting shaft 3
A grounding member 4 extending in the horizontal direction is provided at the lower end of each pedestal 2. A caster 5 is attached to the ground member 4.

One end of an arm 6 is rotatably connected to each of the pillars 2 via a connecting shaft 3. The arm 6 is configured such that the inner pipe 8 is slidably inserted into the outer pipe 7 so that the arm 6 can expand and contract.
A stopper device 9 for fixing the inner pipe 8 is provided. The upper end of each pedestal 2 and the other end of each arm 6 are
The pin 11 is attached to the U-shaped member 10 provided on the lower surface of the top plate 1.
Is rotatably connected via. The U-shaped member 10 to which the pedestal 2 is connected and the U-shaped member 10 to which the arm 6 is connected are arranged so that there is a space in front and back when the top plate 1 is in a horizontal state. The arm 6 extends when the top plate 1 is rotated in the upright direction, and contracts when the top plate 1 is rotated in the horizontal direction.

As shown in FIG. 4, the stopper device 9 accommodates the lock pin 16 and the coil spring 17 in a cylindrical body 15 provided on the outer periphery of the outer pipe 7, and the cylindrical body 15 of the lock pin 16 is accommodated. A knob 18 is attached to an end portion projecting from the lock pin 16, and the lock pin 16 is constantly pressed by a coil spring 17 toward an engagement hole 19 formed in the inner pipe 8. In addition to the position where the top plate 1 is in the horizontal state, a plurality of engagement holes 19 may be provided so that the top plate 1 can be fixed in an upright state or an inclined state.

When the tip of the lock pin 16 and the position of the engagement hole 19 are aligned, the lock pin 16 advances toward the inner pipe 8 and the lock pin 16 engages with the engagement hole 19 to fix the inner pipe 8. To be done.

In order to release the locked state of the stopper device 9, the knob 18 is pulled against the coil spring 17 and the tip of the lock pin 16 is pulled out from the engagement hole 19. The engagement between the engagement hole 19 and the lock pin 16 is released, and the outer pipe 7 and the inner pipe 8 can move relative to each other.

In order to fold the table, the stopper device 9 is unlocked and then the top plate 1 is rotated in a standing direction. As the top plate 1 tilts, the arm 6 extends and swings about the connecting shaft 3 in an upright direction.

When using the table, the top plate 1
Rotate in the horizontal direction. With the rotation of the top plate 1,
While the arm 6 contracts, the pedestal 2 is centered around the connecting shaft 3.
The angle between and swings in the direction of opening. When the top plate 1 is in the horizontal state, the expansion and contraction of the arm 6 is locked by the stopper device 9, and the top plate 1 is stably supported by the pedestal 2 and the arm 6.

A second embodiment is shown in FIGS. In this embodiment, the connecting position of the arm 6 with respect to the top plate 1 and the connecting position of the pedestal 2 with respect to the top plate 1 shown in the above-described first embodiment are arranged in the front-rear direction, and the arm 6 is attached to the top plate 1. The top plate 1 contracts when it is rotated in the upright direction, and it expands when the top plate 1 is rotated in the horizontal direction.

In the table of the second embodiment, since the arm 6 contracts in the folded state, the size of the top plate 1 and the height of the top plate 1 when the top plate 1 is in the horizontal state are different. If they are of the same degree, they can be folded more compactly than the table of the first embodiment.

FIG. 8 shows a third embodiment. In the table of this embodiment, one end is rotatably connected to the middle of the connecting shaft 3 and the other end is connected to the table of the first embodiment via the U-shaped member 10 and the pin 11 to make the top plate 1. The arm 6 rotatably connected is added to the lower surface of the. Like the other arms 6, the added arm 6 expands when the top plate 1 is rotated in the upright direction, and contracts when the top plate 1 is rotated in the horizontal direction. Are arranged in parallel with the arm 6. In this table, as shown in the figure, the top plate 1 can be fixed by providing the stopper device 9 only on the added arm 6, so that the locked state of the stopper device 9 can be easily released by one person. , Can be folded.

Further, instead of the respective arms 6, an arm 6 that contracts when the top plate 1 is rotated in the standing direction and contracts when the top plate 1 is rotated in the horizontal direction may be used. Good. In this case, the stopper device 9 is provided at a position where the top plate 1 does not hit when the top plate 1 is erected.

A fourth embodiment is shown in FIGS. 9 and 10. In this embodiment, a pair of legs 2 supporting the top plate 1 are connected by a connecting member 12, and one end of an arm 6 is rotatably connected to the connecting member 12 via a U-shaped member 10 and a pin 11. The upper end of each pedestal 2 and the other end of the arm 6 are rotatably connected to the lower surface of the top plate 1 via a U-shaped member 10 and a pin 11. The connecting portion between the top plate 1 and the pedestal 2 and the connecting portion between the top plate 1 and the arm 6 are arranged at intervals in the front-back direction of the top plate 1. The arm 6 is provided with a stopper device 9 for fixing the top plate 1. This table can also be easily unlocked and folded by one person.

In the fourth embodiment, the arm 6 is the top plate 1
Even if the top plate 1 expands when it is rotated in the standing direction and contracts when the top plate 1 is rotated in the horizontal direction, it contracts when the top plate 1 is rotated in the standing direction. It may be extended by rotating 1 in the horizontal direction. The stopper device 9 is provided on the top plate 1 when the top plate 1 is erected.
Place it in a position where it will not hit.

As shown in FIG. 4, if a spring for pushing the inner pipe 8 upward is provided inside the outer pipe 7 of the arm 6, the arm 6 does not contract suddenly and the safety is improved. When the top plate 1 is rotated in the direction in which the arm 6 extends, the inner pipe 8 is pushed up by the spring 20 and can be rotated with a slight force.

Further, in the tables of the above-mentioned respective embodiments, since the pedestal 2 and the arm 6 overlap each other when the top plate 1 is upright, the grounding members 4 overlap left and right when a large number of folded columns are stored side by side. By arranging in this way, you can store it in a small space.

Besides, the pedestal 2 and the grounding member 4 are shown in FIG.
As shown in FIG. 1, if they are detachably connected with bolts, they can be stored in a flat box by removing the grounding member 4 from the pedestal 2 when packaging for transportation or the like.

[0025]

According to the present invention, as described above, a telescopic arm in which an inner pipe is slidably inserted into an outer pipe is connected to a plurality of self-supporting stanchions or a connecting member connecting these stanchions. Since one end is rotatably connected, the upper end of each pedestal and the other end of each arm are rotatably connected to the top plate, and a stopper device is provided for locking the extension and contraction of the arm in the horizontal state of the top plate. , When the top plate is rotated in the upright direction, the arm expands or contracts in association with the tilting of the top plate, and swings in the upright direction around the connection with the pedestal to easily fold. be able to.

When using the table, the top plate is rotated in a horizontal direction. As the top plate rotates, the arm contracts or expands, swings around the connection with the pedestal in the direction in which the corner between the pedestal opens, and when the top plate becomes horizontal, the stopper The expansion / contraction of the arm is locked by the device, and the top plate is stably supported by the pedestal and the arm.

Further, since the number of parts is small and the structure is simple, it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment.

FIG. 2 is a side view of the above.

FIG. 3 is a diagram showing a folded state of the above.

FIG. 4 is a sectional view of a stopper device portion.

FIG. 5 is a front view of the second embodiment.

FIG. 6 is a side view of the above.

FIG. 7 is a diagram showing a folded state of the above.

FIG. 8 is a front view of the third embodiment.

FIG. 9 is a front view of the fourth embodiment.

10 is a sectional view taken along line XX of FIG.

FIG. 11 is a view showing a connecting structure of a pedestal and a ground member.

[Explanation of symbols]

 1 top plate 2 pedestal 6 arm 7 outer pipe 8 inner pipe 9 stopper device 12 connecting member

Claims (2)

[Claims] 1. An upper end of each pedestal, wherein each end of an extendable arm having an inner pipe slidably inserted into an outer pipe is rotatably connected to each of a plurality of self-supporting pedestals. And the other end of each arm are rotatably connected to the lower surface of the top plate in a horizontal state with a front-rear space and a stopper device for locking the extension and contraction of the arm in the horizontal state of the top plate. table. 2. One end of an extendable arm having an inner pipe slidably inserted into an outer pipe is rotatably connected to a connecting member for connecting a plurality of self-supporting pedestals, and each leg is rotatably connected. A stopper device that connects the upper end of the pillar and the other end of each arm to the lower surface of the top plate in a horizontal state so as to be rotatable in the front-rear direction with a space therebetween, and locks the extension and contraction of the arm in the horizontal state of the top plate. A table with.