JPS64113Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention supports the table top plate so that it can rotate freely and holds it horizontally when in use, and when it is not in use, the top plate stands vertically and follows the support. This relates to a table that can be folded up and folded.More specifically, it is equipped with casters at the bottom end of the column for movement, and a curtain board that hangs down from the top plate at the front of the column, so that when the table is in use, the table can be folded. At the same time as supporting the board horizontally, the curtain board is lowered and touches the floor surface, thereby preventing the table from moving freely, and when not in use, the curtain board is pulled up at the same time as the top board is converted to an upright position. This invention relates to an improvement of the folding table with casters, which can be freely moved by the casters.

[Conventional technology] Conventionally, a tabletop has been folded to support rotation freely and held horizontally when in use, and when not in use, the tabletop is folded down and stands up along the supports, narrowing the width of the table and making it convenient for storage. Tatami tables are widely known.

This type of folding table is usually used in conference halls and multi-purpose auditoriums, but it is generally placed at the bottom of the support for convenient movement when storing after folding. Usually equipped with casters.

Therefore, although this folding table with casters can be easily moved with the help of the casters when not in use, it is unstable and difficult to use because it moves easily when in use.

Conventionally, in order to stabilize the table during use, in other words, to secure the table, the casters were equipped with stoppers to stop the wheels from rotating, or the casters were pulled up from the bottom of the support and lifted off the floor, allowing the support to be directly attached to the floor. Methods such as fixing by abutting against a surface were used.

However, in the former method, the casters are in contact with the floor, and the casters normally used in this type are of a rotating type that can freely change direction, so even if the wheels stop, there is still some freedom of movement. There was a problem that sufficient stability could not be obtained for use.

In addition, although the latter method provides reliable fixation by floating the casters, on the other hand, the means for moving the casters up and down is complicated, and a special device must be assembled for this purpose, resulting in high costs. While this was relatively expensive, it was usually necessary to lift the table in order to move the casters up and down.

[Problems to be solved by the invention] The invention was devised in view of the above-mentioned circumstances, and its purpose is to hold the top plate horizontally on a folding table and to maintain the table top in a state of use. When the table is not in use, the casters prevent the table from moving freely; on the other hand, when the table is folded up and not in use, it can be moved freely by rotating the casters. The purpose is to propose a table.

To explain in more detail, the present invention uses the rotating operation of the top plate that is operated when in use or not to move the curtain plate attached along the front edge of the column up and down, and when the top plate is held in a horizontal position. The lower edge of the curtain plate is brought into contact with the floor surface, and the friction between this lower edge and the floor surface prevents the table from moving.When not in use, the curtain plate The purpose of the present invention is to propose a folding table that can be moved freely by raising the lower edge off the floor and utilizing the function of casters.

In addition, the present invention provides a folding table in which the curtain plate moves up and down, and when in use, the curtain plate lowers until it touches the floor surface, thereby hiding the feet and further enhancing the blinding function of the curtain plate. It's about doing.

[Means for Solving the Problems] In order to achieve the above object, the present invention supports the top plate in a freely rotatable manner at the upper end of the column, and also slides freely in the vertical direction along the front edge of the column. A curtain plate is provided, and this curtain plate is connected to the lower surface of the top plate in a hanging manner through a link member, and when in use, the curtain plate is lowered as the top plate is converted to a horizontal position, and While the lower edge is in contact with the floor to prevent the table from moving, when not in use, the curtain board is pulled up along the support via the link member as the tabletop is converted to an upright position, and the lower end of the support is removed. The main reason is that it is equipped with casters to allow for free movement.

Further details of the folding table of the present invention are as follows. In other words, the left and right columns are equipped with moving casters on the horizontal frame provided at the lower end, and are pivoted on a support shaft provided at the upper end of the column, allowing the robot to freely rotate between a horizontal position and an upright position with its trailing edge facing down. The table has a top plate that holds the top plate in a horizontal position, a locking means for holding the top plate in a horizontal position, and a curtain plate attached along the front edge of a column, the curtain plate having a back side along the column. At the same time, each end of the link member is rotatably pivoted between the curtain plate and the lower surface of the top plate, and the curtain plate is attached to the lower surface of the top plate. are connected in a hanging manner, and when the top plate is held in a horizontal position, the curtain plate is lowered along the support column so that its lower edge touches the floor surface, and the top plate is placed in an upright position using the support shaft as a fulcrum. To provide a folding table in which the curtain plate is lifted up from the floor surface as the table is converted to a table.

[Function] The folding table with the above structure can be rotated between a horizontal position and a vertical standing position by rotating the top plate around the support shaft of the support, and can be changed between the use state and the folded state. Convert it to an unused state. With this rotation, the curtain plate connected via the link member moves up and down along the pillar, and when in use, the lower edge of the curtain plate contacts the floor surface and the free movement of the table is restrained by frictional force. Furthermore, when not in use, the curtain plate is pulled up via the link member by the rotation of the top plate, eliminating the above-mentioned friction and making it possible to move freely on casters provided on the pillars.

That is, in the table of the present invention, the top plate and the curtain plate are interlocked through the link member, and when the top plate is used horizontally, the curtain plate descends and comes into contact with the floor surface, restraining movement. When the top plate is erected when not in use, the curtain plate is pulled up and can be moved freely on casters.

Hereinafter, embodiments illustrating this invention will be described in detail to clarify its features.

[Example] Fig. 1 is a side view of the folding table according to the present invention in a state of use, Fig. 2 is an enlarged rear view with some parts omitted, and Fig. 3 is an enlarged longitudinal section of the folding table in a state of use with some parts omitted. Side view, Figure 4 is a sectional view taken along the line of Figure 3,
FIG. 5 is a sectional view taken along the line 2, and FIG. 6 is an enlarged right side view, partially omitted, of the center longitudinal section, with the top plate folded and not in use.

The column 1 shown here has a horizontal frame 2 extending rearward from its lower end, forming a substantially L-shape, and casters 3 for movement are provided on the front and lower surfaces of this horizontal frame.
3 is installed. At the top of this support, a short arm 4 is also extended horizontally towards the rear.
A shaft bearing piece 5 is attached to this rear end, and a mounting frame 7, which is integrally attached to the lower surface of the top plate 6, is pivotally attached via a spindle 8, and the top plate 6 is attached to freely rotate around this spindle. It's like this.

The pillars 1 face each other from side to side and support the left and right sides of the top plate, and when the front edge is rotated forward about the support shaft 8, the mounting frame 7 is attached to the upper surface of the arm 4, that is, the upper end of the pillar. It rotates until it makes contact and stops in a horizontal position.

In the figure, reference numeral 9 denotes a hook serving as a locking means for biting into an engaging protrusion 10 installed in the mounting frame 7 and restraining the rotation when the top plate is rotated to a horizontal position.

This hook is pivotally attached to an interlocking shaft 11 that freely rotates between the left and right columns, and a lever 9a provided at one end.
With this operation, the engaging portion 9b at the other end is swung, and the engaging protrusion 10 is removed, allowing the top plate to rotate freely. The hook 9 urges the engaging portion 9b forward by a spring 12 contracted between the hook 9 and the support column, and the lever 9a is brought into contact with the lower surface of the arm 4 to restrict further rotation. death,
As a result, the engaging protrusion 10 of the top plate is held in a vertically erect position and comes around from above.
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Reference numeral 13 denotes a curtain plate attached in an upright manner along the front edge of the support column 1, and 14 denotes a link member passed between the curtain plate and the top plate 6.

The curtain plate 13 has a guide rail 15 vertically attached to the back side of the support column 1 so as to be parallel to and opposite to one side surface of the support column 1 (the inner surface in the illustrated embodiment). A sliding element 16 provided at a position is slidably fitted, and this sliding element is attached to a guide so as to be freely slidable in the vertical direction.

The guide rail 15 in this embodiment is a long rail with a U-shaped cross section, and the slider 16 is a rotatably supported roller that is fitted from the open side of the guide rail to prevent vertical movement. The roller is rotated so that it slides easily along the leading edge of the column.

On the other hand, the link member 14 is an interlocking member for interlocking the curtain plate with the rotation of the top plate, and
A shaft bearing piece 1 having one end pivotally attached to the tip of the mounting frame 7 via a pin 17 and the other end provided on the back surface of the curtain plate.
8 via pins 19, and are rotatably attached to each other, so that the curtain plate 13 is suspended from the lower surface of the top plate 6 via this link member.

In the figure, reference numeral 20 denotes a connecting frame that connects the left and right columns, which is placed approximately at the center of the height. The pillars are hidden from view, and the curtain plate 13 is formed at a height from the caster 3 to the upper end of the pillar, and the lower end 13a is made of an artificial wood board material that is strong against impact and has high frictional force.

The folding table of the present invention is constructed as described above, and when in use, the top plate 6 is held horizontally at the upper end of the column 1 as shown in FIGS. 1 to 3. At this time, the engaging protrusion 10 installed on the mounting frame 7 of the top plate is hooked to the hook 9 to prevent it from falling, and at the same time, the curtain plate 13 connected by the link member 14 is lowered and its lower edge, that is, the lower end 13a is lowered. It comes into contact with the floor surface 21. Next, in order to fold the top plate 6 for movement from this state, when the operating lever 9a of the hook is pushed down against the spring 12, the engagement protrusion 10 is disengaged. Then, when the rear edge of the top plate 6 is pushed down, it rotates downward about the support shaft 8, stands up vertically along the rear edge of the column, and is folded into a state parallel to the back of the curtain plate. become.

FIG. 6 is an enlarged longitudinal sectional side view of the top plate 6 when it is overturned and folded, and as shown here, the support shaft 8
When the top plate is folded into an upright position using the link 14 as a fulcrum, the link member rises as the pivot point of the mounting frame to which one end of the link 14 is pivoted rises, and as this link member is pulled up, The curtain plate 13 is a slider 16
Guided by this, it rises along the pillar and leaves the floor 21.

Then, from this state, when the rear edge of the top plate 6 is lifted up again using the support shaft 8 as a fulcrum and rotated horizontally, the engagement protrusion 10 engages with the hook 9 as it abuts along the upper surface of the arm 4. At the same time as being restrained in the horizontal position, the curtain plate 13 descends as the link member 14 descends, and its lower end 13a comes into contact with the floor surface 21.

[Effects of the invention] The invention is constructed as described above, and the top plate, which is rotatably supported at the upper end of the column via the support shaft 8, can rotate between a horizontal position and a vertical position. On the other hand, when the top plate is converted to a horizontal position, the curtain board pulled up by the link member descends and touches the floor, converting it to a standing position. When the top plate rotates, it will be pulled up and away from the floor.

Therefore, according to the present invention, when in use, the curtain plate comes into contact with the floor surface and acts as a resistance to movement, so that the table supported by casters is prevented from movement and can be used in a stable state. When the top plate is folded when not in use, the curtain plate rises from the floor and releases resistance, allowing it to be moved freely by casters, and this movement can be stopped or canceled by the top plate. It is performed in conjunction with the rotation of the motor, and has the advantage of being easy and quick to operate since no special operations are required.

Furthermore, the curtain plate of the present invention can be easily operated because the weight of the top plate is balanced around the support shaft of the top plate, thereby reducing the resistance when pulling it up.

Of course, this invention can stop the wheels of the caster,
Compared to the conventional method in which the table is fixed by raising the table, the structure is simpler and it has the advantage of superior manufacturability.

In addition, when the table of the present invention is used, the curtain plate lowers until it touches the floor, completely hiding the feet, thereby further enhancing the function of the curtain plate.

In the embodiment, a guide rail was provided on the back side of the curtain plate, and a slider was provided on the support column so that they could freely slide together, but the same effect can be achieved even if the guide rail and the slider are installed in the opposite direction. In short, in this case, it is sufficient that the curtain plate is attached to the support column so that it can freely slide along the vertical and longitudinal directions, and therefore, the shape of the rail, the shape of the slider, etc. can be selected as appropriate.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
The figure is a side view of the state in use, FIG. 2 is an enlarged rear view with some parts omitted, FIG. The drawings are a sectional view taken along the line shown in FIG. 3, FIG. 6 is an enlarged longitudinal sectional side view with the top plate folded and not in use, with some parts omitted, and FIG. 7 is an enlarged exploded perspective view of the main parts. 1... Support column, 2... Horizontal frame, 3... Caster, 6... Top plate, 8... Support shaft, 9... Hook serving as locking means, 13... Curtain plate, 14... Link member.

Claims (1)

[Scope of utility model registration request] The left and right columns are equipped with casters for movement on the horizontal frame provided at the lower end, and are pivoted on a support shaft provided at the upper end of the columns, allowing for free rotation between a horizontal position and an upright position with the trailing edge facing down. It has a top plate, a locking means for holding the top plate in a horizontal position, and a curtain plate attached along the front edge of the column, and the curtain plate stands up with its back side aligned with the column. The link member is slidably supported along the column so as to be slidable up and down, and on the other hand, both ends of the link member are pivotally connected to the rear surface of the curtain plate and the lower surface of the top plate so that the link member can be freely rotated. The curtain board is connected and supported in a suspended manner on the lower surface of the top board through the link member, and when the top board is held in a horizontal position, the curtain board is lowered as the link member is lowered, and its lower edge is brought into contact with the floor surface. On the other hand, the folding table is configured such that when the top plate is changed to an upright position using the support shaft as a fulcrum, the curtain plate is pulled up via a link member and the lower edge is separated from the floor surface.