JP3096809B2 - Folding table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding table, and more particularly to a folding table in which a top plate rotates between a horizontal state and a vertical state, and includes a caster leg and a fixed leg, and is movable.

[0002]

2. Description of the Related Art Heretofore, as a folding table, there has been known a table in which a top plate is rotatably mounted from horizontal to vertical.

Further, as a table which can be easily moved, there is a table having a structure in which caster legs having casters attached to the lower end thereof can be moved up and down by lever operation, separately from ordinary fixed legs supporting the top plate. , Conventionally known. When using this movable table, when the table is used fixedly, the caster legs are lifted by the lever operation and the table is supported by the fixed legs, and when the table is moved, the caster legs are lowered by the lever operation. Stick out to support the table.

[0004]

By combining the former folding table with the latter movable table structure, it is possible to construct a table which can be easily moved and which can be folded. However, this type of folding table requires a separate operation for rotating the top plate and an operation for inserting and removing the caster legs when using or clearing after use, which makes the operation complicated. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is intended to make a table movable or to use a fixed table simply by rotating a top plate between a horizontal position and a vertical position. It is an object of the present invention to provide a folding table that can be used.

[0006]

In order to achieve the above object, a folding table according to the present invention comprises a supporting leg frame having a horizontal lower portion disposed on both sides and a vertical portion provided on the horizontal lower portion, and a supporting leg. A top plate rotatably supported by a horizontal rotating shaft at the upper end of the frame, a plurality of pairs of casters mounted on both horizontal lower portions of the support leg frame, and a connection between the top plate and a vertical portion of the support leg frame. A horizontal support arm and a vertical portion provided on the horizontal portion, and the whole is disposed so as to be able to move up and down. A vertically moving frame that descends against a spring force in accordance with the rotation of the plate to the horizontal position, a spring member that urges the vertically moving frame upward, and a horizontal portion of the vertically moving frame, The descent Comprising a fixed leg pairs projecting from downward coater, and a locking mechanism for locking the horizontal portion when the fixing leg projecting downward from the caster, locking mechanism
Is attached to the horizontal lower part of the support leg frame at an angle.
An inclined pin that engages with a long hole provided in the horizontal portion of the
And a locking member that locks by engaging with the end of the horizontal portion
And a connecting plate connected between the locking member and the horizontal portion.
It is characterized by having.

[0007]

[Operation / Effect] The folding table with such a configuration
Since the top plate is rotatably supported by a horizontal rotation shaft,
You can rotate and fold from the horizontal state to the vertical state,
Further, the vertical movement frame is raised by the spring force with the turning operation of the folding, so that the fixed legs attached to the horizontal portion of the vertical movement frame are raised above the casters, and the entire table is supported by the casters. Becomes In this manner, the movable folding state can be achieved only by rotating the table top vertically.

When the top plate is rotated from the vertical state to the horizontal state, the vertically moving frame descends against the spring force.
For this reason, the fixed leg attached to the horizontal portion of the vertically movable frame projects below the casters, and the fixed leg supports the entire table, that is, the top plate is horizontal and the use state is supported by the fixed leg. In this way, it is possible to bring the table into a use state in which it is not easily moved simply by rotating the table top from vertical to horizontal. Plus, the frame of water
The horizontal part of the vertical movement frame that is attached to the flat bottom at an angle
And an inclined pin that engages with the long hole provided in
Lock member that locks together, and between the lock member and horizontal part
And a connecting plate connected to the
A relatively simple structure, and
As the lowering frame descends, the horizontal part of the frame
Can be securely locked.

If the mounting frame is fixed to the lower surface of the top plate, and the mounting frame is supported on the rotating shaft via a bracket provided at the upper end of the vertical portion of the support leg frame, the top plate can be improved. And the vertical frame can be moved up and down according to the rotation of the top plate.

The horizontal lower part and the vertical part of the supporting leg frame are formed in a cylindrical shape, the horizontal part of the vertical moving frame is disposed in the horizontal lower part, and the vertical part of the vertical moving frame is positioned in the vertical part of the supporting leg frame. It is arranged, the fixed leg is projected downward from inside the vertical part, the upper end of the vertical part of the vertical movement frame is projected into the bracket, and the top plate and its mounting frame are vertically moved by the mounting frame with the rotation to the horizontal position. If the vertical frame is lowered by pushing down the upper end of the part, the vertical frame enters the support leg frame, so that the appearance can be improved and the fixed leg can be prevented from interfering with other members. Up and down movement can be performed reliably.

[0011]

[0012]

Embodiments of the present invention will be described below with reference to the drawings. This folding table is shown in Figs.
As shown in FIG.
The top plate 1 is rotatably attached to the support leg frame 3, the casters 6 are attached to the bottom of the support leg frame 3, and the fixed legs 5 are disposed so as to protrude downward.

The support leg frame 3 includes a horizontal lower portion 11 disposed horizontally on both sides, a vertical portion 12 erected on the horizontal lower portion 11, and a horizontal connecting portion 13 connecting the vertical portions 12 on both sides.
And two pairs of casters 6 at the bottom of the horizontal lower part 11.
Are attached, and brackets 14 are attached to the upper ends of the vertical portions 12 on both sides.
Is fixed, and the mounting frame 2 fixed below the top plate 1 is rotatably supported by the bracket 14 via a rotating shaft 15.

The intermediate shelf 4 is rotatably mounted via a horizontal shaft 16 at a position above the vertical portions 12 on both sides of the support leg frame 3. An arm for supporting the top plate is connected between the mounting frame 2 and the shaft 16. A lever 16a is attached to an end of the shaft 16.

The arm comprises a first arm 7 and a second arm 8 connected to each other. The tip of the first arm 7 is supported by a part of the mounting frame 2, and the base of the second arm 8 is connected to a shaft 16. Be pivoted. The first arm 7 and the second arm 8 are rotatably connected so that the top plate 1 is turned to a stable state beyond the dead center when the top plate 1 is turned horizontally, and a coil spring 17 is connected therebetween. (FIG. 4). A third arm 9 is connected between the intermediate shelf 4 and the mounting frame 2.

As shown in FIGS. 1 and 4, when the table top 1 of the table is used horizontally, the coil spring 17 causes the first arm 7 and the second arm 8 to be moved by the urging force, and The table is held in a straight line state beyond the dead center, whereby the use state of the table with the top plate 1 horizontal is stably held.

The horizontal lower part 11 and the vertical part 12 of the support leg frame 3 are formed of a square pipe material, and a hole is formed in the bottom of the horizontal lower part 11, and a pair of fixed legs 5 project downward from the hole, and The fixed leg 5 in the lower part 11 is
(FIG. 4). The vertically moving frame 10 is formed in a substantially L-shape, and a vertical portion 10b is disposed inside the supporting leg frame 3 so as to be vertically movable. Bolts are attached to appropriate positions of the vertical portion 10b for vertical movement guide.

Further, a coil spring 19 is disposed on the outer periphery of the guide screw 18 in the vertical portion 12 so as to urge the horizontal portion 10a of the vertically moving frame 10 upward. Vertical part 10b
Is lifted by the urging force of the coil spring 19 and protrudes into the bracket 14 from the front end of the vertical portion 12 of the support leg frame 3. At this raised position, the pair of fixed legs 5 attached to the horizontal portion 10a of the vertically moving frame 10 slightly floats from the floor.

A lock mechanism 20 is provided on the horizontal portion 10a of the vertically movable frame 10 for holding the vertically movable frame 10 pressed down and the fixed leg 5 protruding. The lock mechanism 20 is provided with an inclined pin 21 attached to the horizontal lower part 11 of the support leg frame 3 at an angle, and a lock mechanism which is provided at an end inside the horizontal lower part 11 so as to be movable to face the end of the horizontal part 10a. Lock member 22 having groove 22a
And an upper connecting plate 23 and a lower connecting plate 24 for connecting between the lock member 22 and the horizontal lower part 11.

The inclined pin 21 penetrates a long hole formed in the horizontal portion 10a, and penetrates a hole formed in the upper connecting plate 23 and the lower connecting plate 24. With this structure, when the horizontal portion 10a of the vertically movable frame 10 is lowered, the upper connecting plate 23 and the lower connecting plate 24 are moved to the right side in FIG. 6 by being guided by the inclined pins 21, and as shown in FIG. In the lock groove 22a of
The end of the horizontal portion 10a is fitted to lock the horizontal portion 10a.

Next, the operation of the folding table having the above configuration will be described. When the table is changed from the use state in FIGS. 1 and 4 to the non-use state, the tabletop 1 of the table is rotated from the horizontal state to the vertical state about the rotation shaft 15 as a fulcrum, as shown in FIG.

At this time, in order to bend the connecting portion of the first arm 7 and the second arm 8 upward (to the side beyond the dead center), the lever 16a is slightly rotated in the same direction. At the same time, the intermediate shelf 4 rotates to the vertical state by the action of the third arm.

Further, the rotation of the top plate 1 eliminates the pressing in the bracket 14, so that the vertically movable frame 10 is lifted upward by the urging force of the coil spring 19.
As a result, the horizontal portion 10a and the vertical portion 10b of the vertically moving frame 10 rise, and the lower ends of the fixed legs 5 attached to both ends of the horizontal portion 10a also rise above the lower ends of the casters 6. For this reason, the table is supported by the casters 6 attached to the bottom of the support leg frame 3, and can be freely moved by the casters 6 in a folded state in which the top plate 1 is vertical.

On the other hand, when the table is changed from the folded state to the use state, the top plate 1 is turned around the turning shaft 15 to a horizontal state, and as shown in FIG. 8 is on a straight line, and the top plate 1 is held in a horizontal state. At this time, when the mounting frame 2 of the top plate 1 enters the bracket 14 having the rotating shaft 15, the upper end of the vertical portion 10b of the vertically moving frame 10 protruding therefrom is pressed down.

As a result, the horizontal portion 10a of the vertically moving frame 10 compresses the coil spring 19 and descends.
a two pairs of fixed legs 5 attached to the supporting leg frame 3.
Projected downward from Therefore, the lower end of the fixed leg 5 projects below the lower end of the caster 6, and the caster 6 floats and the fixed leg 5 supports the table. At this time, when the horizontal portion 10a of the vertically moving frame 10 descends, the upper connecting plate 23 and the lower connecting plate 24 connected thereto are inclined pins 21.
The lock member 22 is pulled rightward in FIG. Thereby, the lock member 22 fits the tip of the horizontal portion 10a into the lock groove 22a, and locks the position of the horizontal portion 10a.

As described above, with a simple operation of folding the top plate 1 from the horizontal state to the vertical state, the fixed leg 5 projects below the casters 6 and the lock member 22
0a can be locked, and a use state in which the two pairs of fixed legs 5 project can be obtained.

Further, in such a folding table, the supporting leg frame 3 is composed of a horizontal lower portion 11 and a vertical portion 12 erected on the horizontal lower portion 11. Since it can be folded into a thin shape, many tables can be easily collected and stored in a narrow space, and they can be arranged in a predetermined position in a room and the top plate 1
Can be conveniently used as a conference table or the like if it is rotated horizontally.

The support leg frame 3 is formed of a square pipe, and has a vertically moving frame 10 and a lock mechanism 2 inside thereof.
Since a mechanism for locking the fixed leg 5 such as the coil spring 19 is provided, the mechanism does not appear in the appearance and the design is not deteriorated.

The horizontal portion 1 of the vertically moving frame 10
0a and the vertical portion 10b can be formed separately and assembled in contact with each other. Furthermore, the horizontal lower part 11 and the vertical part 12 of the support leg frame 3 are formed separately, and the horizontal lower part 1 is placed under the vertical part 12 by tightening with the guide screw 18.
With the structure in which the support leg 1 is assembled, the support leg frame 3 can be easily disassembled, which is convenient for packing and transportation.

[Brief description of the drawings]

FIG. 1 is a side view of a folding table according to an embodiment of the present invention.

FIG. 2 is a front view of the table.

FIG. 3 is a rear view of the table in a state where a top plate is set up.

FIG. 4 is an enlarged side sectional view of the table.

FIG. 5 is an enlarged front view of the table.

FIG. 6 is an enlarged side sectional view of the table in a state where a top plate is set up.

[Explanation of symbols]

 1-Top plate 2-Mounting frame 3-Support leg frame 5-Fixed leg 6-Caster 10-Vertical moving frame 10a-Horizontal part 10b-Vertical part 11-Horizontal lower part 12-Vertical part 15-Rotating axis 19-Coil spring 20-Lock mechanism

Claims (3)

(57) [Claims] 1. A support leg frame having a horizontal lower portion disposed on both sides and a vertical portion provided on the horizontal lower portion, and is rotatably supported by a horizontal rotation shaft at an upper end of the support leg frame. A folding table including a top plate, a plurality of pairs of casters mounted on both horizontal lower portions of the support leg frame, and a horizontal support arm connected between the top plate and a vertical portion of the support leg frame. In the above, a horizontal portion disposed on the lower portion on both sides and a vertical portion provided on the horizontal portion, the entire portion is disposed so as to be movable up and down, and a spring force is generated by rotating the top plate to a horizontal position. A vertical moving frame that descends against the vertical movement frame, a spring member that urges the vertical moving frame upward, and is mounted on a horizontal portion of the vertical moving frame, and protrudes downward from the caster when the vertical moving frame is lowered. Multiple pairs of fixed legs, And a lock mechanism for locking the horizontal portion when the fixed leg protrudes below the caster, wherein the lock mechanism is attached to the horizontal lower portion of the support leg frame at an angle.
Tilt engaging with a long hole provided in the horizontal part of the vertical movement frame
A swash pin and a lock that engages and locks the end of the horizontal portion
Member, a connecting plate connected between the locking member and the horizontal portion
Folding table, characterized in that it comprises, when. 2. A mounting frame is fixed to a lower surface of the top plate,
2. The folding table according to claim 1, wherein the mounting frame is supported on a horizontal rotating shaft via a bracket provided at an upper end of a vertical portion of the support leg frame. 3. A horizontal lower portion and a vertical portion of the support leg frame are formed in a cylindrical shape, a horizontal portion of the vertically moving frame is disposed in the horizontal lower portion, and a vertical portion of the vertically movable frame is supported by the support leg. The fixed leg is disposed in the vertical portion of the frame, the fixed leg protrudes downward from the vertical portion, the upper end of the vertical portion of the vertically moving frame protrudes into the bracket, and the top plate and its mounting frame are turned to the horizontal position. 3. The folding table according to claim 2, wherein the mounting frame pushes down the upper end of the vertical portion and lowers the vertically moving frame with movement.