JPH0785726B2 - Moving stop device for table with casters - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stops an arbitrary movement when using a table with casters which can be freely moved by casters, and releases the above-mentioned stopped state when re-moving is necessary in alignment work or the like. The present invention relates to a movable stop device for a table with casters.

[0002]

2. Description of the Related Art A caster provided on a table is provided for the purpose of easily moving a heavy table. However, when the table is used, it is easy to move, which is not convenient. Therefore, in order to restrain movement during conventional use, a stopper device can be attached to each caster provided at the lower end of the column of the table, or the caster can be freely moved up and down and pulled up from the lower end of the column when the table is used. Measures such as restraining movement away from the floor are adopted, but in the former case, it is adopted to secure the directionality of movement and poor workability that requires stopping operation for each caster. In addition to the fact that the rotation of the spindle of the caster cannot be stopped, the movement of the table cannot be stopped completely, and in the latter case, it is necessary to equip the caster separately with a mounting means for supporting the caster. When lowering and rotating the table, it is necessary to lift the table and work to restrain the casters that have been lowered so that they do not rise. An equal was not each easily made.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention is a defect in such a conventional table with casters, that is, incompleteness of movement stopping means for stopping movement when the table is used, complexity of structure, and further operation. It was researched and developed in order to improve this in consideration of poor sex, and its purpose is to ensure free movement by rotating the casters provided on the support when the table is not used, but on the other hand,
It is intended to provide a table with casters which, when used, reduces the function of supporting the table by the casters to prevent the table from rotating independently, thereby restraining the movement of the table. In particular, the present invention makes it possible to easily perform the stopping work without requiring a force for lifting a heavy table when stopping the movement of the table, and at the same time, the present invention further simplifies this in the movement stopped state. Release to enable table movement,
Along with this, it is also intended to provide a movement stopping device for a table with casters, which is provided with a temporary stop releasing mechanism that can be returned to the movement stopped state again.

[0004]

The present invention has been made to achieve the above-mentioned object, and is characterized in that it is rotatably supported on the upper end of a column with a support shaft as a fulcrum and stands upright when not in use. In a table with casters, which is provided with a top plate which is folded in a horizontal position and is held in a horizontal position by a locking device when used, and a caster is provided at a lower end of the column, the column is substantially aligned with the height of the column. A stopper rod is provided slidably along the vertical direction, and when the top plate is rotated in a horizontal position, its lower surface abuts against the upper end of the stopper rod and its lower end abuts the floor surface to stop the movement. A spacing member having a plurality of abutment points having different heights is movably provided at the abutment position on the lower surface of the top plate, and abuts on the upper end of the stopper rod by a moving operation of an operating means connected to the spacing member. Opposition It is the mobile stop device of caster table obtained by allowing release movement stop of the table in use of the table by replacing the point.

Further, in the above description of the present invention, a pair of columns are provided with a left-right spacing, and stopper rods are provided so as to be freely slidable along the height direction of both columns, while upper ends of both stopper rods are provided. An object of the present invention is to provide a movement stopping device for a table with casters, characterized in that the lower surface of the abutting top plate is provided with a spacing member which can freely change abutting points having different heights by operating means.

Further, according to the present invention, with respect to the spacing member, the spacing member is supported so as to be movable along the lower surface of the top plate, and two first abutting points of the same height and the two abutting points which are arranged at intervals. A second lower abutment point located between the abutting points is provided, and an inclined surface is arranged between the two first abutting points and the second abutting point between them so that the adjacent abutting points can be connected to each other. The first and second are made continuous by the moving operation by the operating means.
It is an object of the present invention to provide a movement stopping device for a table with casters, which is configured so that the abutting point of is selectively exposed to the upper end of the stopper rod.

Further, according to the present invention, a long rod-shaped member is attached to the above operating means so as to be freely slidable along the lower surface of the top plate, one end of which is connected to the spacing member and the other end is connected to the edge of the top plate. A movement stopping device for a table with casters, characterized in that a return spring for biasing the first contact point of the spacing member so as to face the first contact point with the upper end of the stopper rod is provided on the front facing means. Especially. Next, the present invention will be described in detail in accordance with the illustrated embodiments, the features of the invention will be clarified, and other features will be described together.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a table with casters according to the present invention, FIG. 2 is a partially cutaway perspective view showing an enlarged main part, and FIG. FIG. 4 is an enlarged side view with parts omitted, where FIG.

The table with casters shown here rotatably supports the top plate 2 with respect to the column 1 with the support shaft 3 as the fulcrum,
It is a foldable table that keeps the tabletop 2 horizontal when in use, and converts it into a vertical position parallel to the support column by rotating it with the support shaft 3 as a fulcrum when not in use. It has a built-in configuration that stops the movement of the table in conjunction with.

The column 1 is erected right and left facing each other via a connecting plate 4, and a horizontal frame 5 is fixed to each lower end in the front-rear direction,
Casters 5a are provided at both front and rear ends thereof, and the casters can freely move.

On the other hand, the top plate 2 is provided with mounting frames 6 each having a U-shaped cross section formed on the lower surfaces of the left and right sides and fixed in the longitudinal direction aligned in the longitudinal direction, and provided in the middle of the length of the outer piece 6a of each frame. By passing the support shaft 3 protruding laterally from the upper end of the support column through the bearing portion 7, the support shaft 3 is rotatably supported by the support shaft as a fulcrum. The support 1 shown in this embodiment is made of a rectangular pipe material having a rectangular cross section, and a protrusion 1a is provided on one side of the upper end portion so as to protrude rearward, and the spindle 3 is laterally planted in the protrusion 1a. I am doing it. Then, the top plate 2 attached via this support shaft is folded up in a standing state along the rear side surface of the support pillar, and the lower surface is brought into contact with the upper end of the support pillar by tilting forward with the support shaft as a fulcrum to make it horizontal. Is supported by.

Reference numeral 8 in the drawing is a locking device for holding the top plate 2 which has been laid down horizontally in a horizontal posture, and a locking member 10 for engaging a pin 9 projecting inwardly on the inner surface of the upper end of the column 1. When,
The lever 11 is used to release the locking member. FIG. 6 is an exploded view of the locking device, which shows the locking member 1.
0 is provided with a locking claw 12 for the pin 9 by cutting out the lower edge side. The locking member is planted on both side surfaces of two long holes 14, 14 and 15, 15 which are formed to face the piece 6a of the frame 6 and the supporting plate 13 facing each other with a space therebetween. The pin 16 is slid through a sliding member 16a so that the pin 16 can be slid along the lengthwise direction of the elongated hole toward the front and rear of the mounting frame. The lever 11 is rotatably attached to a shaft 17 passing between the two pieces 6a, 6b of the mounting frame and is pivotally mounted. A pin 18 passing through the tip of the lever 11 is provided in a vertically elongated slot 19 at the end of the locking member 10. It is connected by sliding.

When the lock device is in the normal state, as shown in FIGS. 3 and 4, the locking member 10 and the locking member 20 and 21 provided on the piece 6a of the mounting frame, respectively, are interlocked by a spring 22 stretched therebetween. Is attached to the rear end side of the mounting frame, and with this attachment, the pin 16 is inserted into the long holes 14 and 15
Abutting on the rear end of. Then, in this state, the claw 12 of the locking member abuts the pin 9 provided on the column 1.

When the top plate 2 is rotated vertically from the folded state and the support shaft 3 is rotated for use as a fulcrum, the claw 12 of the locking member reaches directly above the pin 9 of the support and abuts against it. Become. The locking claw 12 of the locking member is obliquely cut away at the lower side in order to engage with the pin 9 at the time of the above-mentioned abutment and the oblique side 12a.
This hypotenuse 1 is formed along with the collision with the pin 9.
The spring 22 is extended using the guide 2a as a guide, and the spring 22 is slid forwardly and then hooked on the pin 9 so that the top plate can be held in a horizontal posture.

The locking member 1 thus engaged with the pin 9
With 0, the engagement is released by pulling up the lever 11, and the top plate is allowed to rotate in the folding direction. Although not shown in the drawings, the above-mentioned locking device is provided on the left and right mounting frames 6
In order to stabilize the top plate during use, the rotation of the top plate can be locked on both sides. Then, here, a shaft 17 serving as a support shaft of the operation lever 11 is passed between the two as a common shaft of the operation levers 11 provided on both mounting frames so that the lock can be released by one side operation, and one operation is performed. By operating the lever, the other operation lever is simultaneously rotated to be disengaged from the pin 9.

In the figure, 23 is a stopper rod vertically and slidably attached to the inside of the hollow column 1.
Is a spacing member attached to the lower surface of the top plate 2. The stopper rod 23 stops the movement of the table by pressing the upper end with the lower surface of the top plate 2 and pressing the lower end against the floor surface 25 when the top plate 2 is horizontally tilted, and the spacing member 24 has the above-mentioned structure. By intervening between the lower surface of the top plate 2 and the upper end of the stopper rod 23, the height position of the stopper rod is changed to release the movement stop state of the table.

The stopper rod 23 vertically penetrates the hollow inside of the support column 1 so that the upper end portion projects above the support column, while the lower end penetrates the horizontal frame 5 and faces the floor surface 25, which has frictional properties. A floor contact member 26 made of a highly elastic material such as rubber is attached. The stopper rod 23 is urged upward by a spring 29 that is contracted between an edge 27 of a hole that penetrates the horizontal frame 5 and a pin 28 that is provided halfway along the length of the rod. The upper end portion is projected upward from the upper end of the column 1 while being separated from the surface.

On the other hand, the spacing member 24 is the stopper rod 2 described above.
The upper end of 3 is located on the lower surface of the top plate, and is provided so as to abut the stopper rod when the top plate is tilted horizontally with the support shaft 3 as a fulcrum. The spacing member shown here is formed by welding one side edge in the longitudinal direction to the distal end of a strip-shaped long metal plate serving as the operating means 30 by forming a thick rectangular metal plate from one surface of the operating means. It is installed so as to hang down, and a mountain-shaped notch is provided in the lower edge at approximately the center of the length to form a portion with a different height. Score 3
1 and 32, and the portion lowered by the notch is the second abutment point 33.

The spacing member 24 is housed in a cover 34 which also serves as a rail which is fixed in parallel along the outer side of a mounting frame 6 which is mounted on the lower surface of the top plate 2 in the front-rear direction, and the upper end of the column 1 is supported. Stopper rod 23 protruding from
It is designed to face directly above.

10 and 11 show the spacing member in detail, in which the strip-shaped operation means 30 is inserted from one end of the cover 34 having a U-shaped cross section, and the facing groove 3 is formed.
5 and 35 are slidably accommodated so as to face an elongated hole 36 formed at the tip of this cover. Further, to explain further, the cover 34 is closed by fitting plastic members 37 and 38 at both open ends, and a return spring 39 is stretched between the member 37 at the tip and the operating means 30 to keep the cover 34 open. The handle 40 provided at the rear end of the operating means is brought into contact with the member 38 so that the operating means is pulled in, and in this state, the first abutting point 31 of the spacing member 24 is located at the elongated hole 3
It is designed to face 6.

The cover 34 containing the operating means is fixed to the lower surface of the top plate by rubbing the screws 41 and 42 as described above. At this time, the screw 42 on the rear end side is attached to the member 38.
Through the through hole of the operating means 30, and at the same time, through the elongated hole 43 of the operating means 30 and screwed to the top plate so that the operating means can slide in the inserting and removing direction within the range of the length of the elongated hole. In addition, a long hole 36 of the cover is attached so as to face directly above the stopper rod 23.

In the figure, reference numeral 44 designates the top plate 2 with the support shaft 3 of the column 1 as a fulcrum.
Is a damper for buffering when rotating, and the end portion of the cylinder 45 is pivotally attached to the mounting plate 46 provided on the bearing portion 7 of the mounting frame 6, and the end portion of the rod 47 is connected to the mounting frame 6.
The rod 47 extends pivotally when the top plate 2 is vertically folded and is pivotally attached to a bifurcated mounting metal fitting 48 provided in the above, and contracts when the top plate 2 falls horizontally to absorb the shock when the top plate rotates. is there.

The caster table of the present invention is constructed as described above, and can be freely moved by the casters 5a when the top plate 2 is vertically erected and is not in use. When a large number of tables are arranged in a conference room or the like, the tables can be arranged by moving them to a predetermined position in this folded state. Then, this table is restrained from freely moving by rotating the top plate 2 and tilting it to a horizontal posture.

The top plate 2 is rotated about the support shaft 3 as a fulcrum while the damper 44 is contracted, and is held horizontally when the lower surface of the top plate comes into contact with the upper end of the support column. The pin 9 abuts on the locking member 10 of the locking device 8, and once it is moved to the tip side against the spring 22, the pin 9 engages with the locking claw 12 and is locked, and is held in a horizontal state. Along with this conversion of the top plate to the horizontal posture, the spacing member 24 provided on the bottom surface of the top plate abuts against the upper end of the stopper rod 23 protruding from the upper end of the column, and pushes down this to push down the floor contact member 2.
6 is pressed against the floor surface 25 to restrain the movement of the table. FIG. 7 shows a state where the stopper rod 23 is pushed down and stopped by the rotation of the top plate, and at this time, the spacing member 24 receives the upper end of the stopper rod at the first abutting portion 31.

The table thus stopped is unlocked by pulling up the operating lever 11 and pulling the locking member 10 to remove the locking claw 12 from the pin 9, and the table is folded again. It will be possible to rotate in the tatami direction. Then, with the rotation of the top plate, the pressing of the stopper rod 23 is released and the stopped state is released.

On the other hand, the spacing member 24 allows the table to be moved horizontally while keeping the table in a horizontal posture when the table is stopped from moving.
This spacing member is performed by pulling the handle 40 of the operating means 30 from the stopped state shown in FIG. 7 to move the abutting position with the stopper rod to the second abutting point 33. When the second abutment point 33 having a low height reaches right above the stopper rod, the spring 29 acts to lift the floor contacting member 26 away from the floor surface 25 and release the stopped state (see FIG. 8).

The release of the movement stop with the top plate kept horizontal is convenient when the position of the table is adjusted or the table is moved for rearrangement. In the present embodiment, the movement stop state is once again released. After that, two first abutting points 31, 32 are provided on the spacing member 24 for stopping again.
FIG. 9 shows a state in which the handle 40 is further pulled to move the spacing member so that the first abutting point 32 faces the upper end side of the stopper rod 23, and the stopper rod is pushed down to push the floor-contacting member 26 again to the floor surface. Is shown. The table is restricted from moving by the casters 5a by this operation.

The handle 40 of the operating means 30 is located near one side edge of the top plate 2 so that it can be easily pulled out by a hand which is inserted under the top plate, while the first abutment point 32 on the tip side is provided. It goes without saying that the handle is designed to have a length that does not protrude from the lower surface of the top plate when it abuts against the stopper rod 23.
Of course, in the case of this embodiment, since the screw 42 is inserted into the long hole 43 to regulate the sliding range of the operating means, the handle is pulled out to come out of the cover 34 or the stopper rod 2.
3 does not come off from the first abutting portion 32.

Thus, the spacing member 24, which is movable while keeping the top plate in use and restrains this movement again, is a stopper rod when the top plate 2 is jumped up by releasing the cock device 8. 23 will be released and the stopped state will be released. Then, the spacing member 24 is pulled back toward the front end side by the action of the return spring 39 as the abutment with the stopper rod is released, and the rear abutment point 31 is made to face the through hole 36 again to prepare for the next movement stop operation. Will be done.

In the illustrated embodiment, the spacing member 2
4 has two first abutting points in front of and behind one second abutting point 33, and is structured to be continuous in one line,
The structure in which the spacing member is pulled and moved to one side by the operating member 30 is for facilitating the movement operation of the spacing member in the state where the stopper rod is pressed within the range of the grip force of the hand. For example, when the frictional force between the stopper rod and the spacing member is small, the first abutting point and the second abutting point having different heights are provided next to each other, and the abutting position of the stopper rod is exchanged by the reciprocating operation of the operating means. It may be possible to perform movement stop-stop release operation. Of course, in this case, an inclined surface for guiding the upper end of the stopper rod should be provided between the abutting points to facilitate replacement of the abutting points having different heights. Needless to say. Further, in the above-described embodiment, the spacing member 24 is formed by raising the edge of the strip-shaped metal plate and providing the notch at this edge, but the surface of the metal plate is bent in an uneven shape to provide a height difference. This may be used as the spacing member.

In short, the spacing member is pushed down by the lower surface of the top plate when the top plate is laid down horizontally and kept in use, and the stopper rod 23 for contacting the floor surface and maintaining the stopped state is released. It is possible to move the stopper rod up and down by interposing it between the lower surface of the top plate and the stopper rod because the lower end grounding member is allowed to rise and the movement stopped state is released, and the movement is restricted by lowering it. Other means such as moving the stopper rod up and down by utilizing the difference in diameter by rotating the operating rod serving as the operating means by inserting an elliptical rotary plate can be used. .

It has been mentioned above that a material such as rubber having a high friction coefficient is suitable for the floor-contacting member 26 at the lower end of the stopper rod, but this floor-contacting member restrains the movement of the table when the movement is stopped. Therefore, it is desirable that the stopper rod is attached via an adjuster whose height can be adjusted so that a good pressure-bonded state can always be obtained.

[0033]

As described above, the present invention has been described in detail with reference to the embodiments. The apparatus of the present invention, as apparent from the above-described structure, folds the top plate which is folded up vertically when not in use to be folded horizontally for use. Then, the stopper rod descends to stop the free movement by the casters, and when the top plate is returned to the standing posture, the pushing down of the stopper rod is released and the stopped state is released, so the table can move freely. . Therefore, according to the present invention, since the movement by the casters is stopped with the use of the table, the table can be used in a stable state, and when not in use, the stopped state is automatically released as the tabletop rotates. It is possible to move freely. Further, according to the present invention, when the tabletop is tilted horizontally and is in a usable state, the stopped state by the stopper rod can be released by the operating means, and the released state can be returned to the stopped state. Since there is no need to correct the row when arranging a plurality of tables, or to rotate the top plate each time when moving, there is an advantage that work can be performed easily and efficiently.

[Brief description of drawings]

FIG. 1 is a perspective view of a table with casters according to the present invention.

FIG. 2 is a partially cutaway perspective view showing an enlarged main part.

FIG. 3 is an enlarged side view of a part of the main part, which is partially omitted and shows a state in which the tabletop is folded from an upright folded state to a horizontal state and converted into a usable state.

FIG. 4 is an enlarged side view of a part of the main part that is partially omitted when the top plate is horizontally tilted to be usable by locking the locking device.

FIG. 5 is an enlarged bottom view of the main part centering on the lock device.

FIG. 6 is an exploded perspective view of a main part centering on a lock device.

FIG. 7 is an enlarged side view of a part of the main part, which is in a partially broken state, in which the first abutment point of the spacing member abuts against the upper end of the stopper rod and the movement is stopped.

FIG. 8 is an enlarged side view of a partly broken main part showing a state where the upper end of the stopper rod abuts against the second abutting point of the spacing member and the stopper rod rises to release the stopped state.

FIG. 9 shows a part of the main part that is partially cut away, showing a state where the abutment position of the upper end of the stopper rod is moved to the first abutment point from the second abutment point of the spacing member by the pulling operation of the operating means to return to the stopped state. Enlarged side view.

FIG. 10 is an enlarged exploded perspective view showing a spacing member and an operating unit.

11 is an enlarged bottom view showing a state in which the spacing member shown in FIG. 10 is housed in a cover and assembled.

FIG. 12 is an enlarged side view of essential parts for explaining the operating state of the damper when the top plate is horizontally tilted and restrained by the lock device to be in use, and then the top plate is rotated to be folded to the standing state. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2 Top plate 3 Support shaft 5a Caster 6 Mounting frame 8 Locking device 9 Pin 23 Stopper rod 24 Spacing member 26 Floor contact member 30 Operating means 31, 32 First abutment point 33 Second abutment point

Claims (4)

[Claims] 1. A top plate, which is rotatably supported by a support shaft at a top end of the support column, is folded in an upright position when not in use, and is held in a horizontal position by a locking device when not in use, is provided at the bottom end of the support column. In a table with casters including casters, a stopper rod substantially aligned with the height of the column is slidably provided along the vertical direction on the column, and the lower surface of the column is rotated when the top plate is rotated to a horizontal position. While stopping the movement by abutting the upper end of the stopper rod and abutting the lower end on the floor surface, move a spacing member having a plurality of abutting points with different heights to the abutting position on the lower surface of the top plate. If possible, the moving stop state of the table can be released when the table is in use by changing the abutting point that abuts on the upper end of the stopper rod by moving the operating means connected to the spacing member. A device for stopping movement of a table with casters, which is characterized in that 2. The pair of support rods according to claim 1, wherein the support rods are provided at a distance from each other, and stopper rods are slidably provided along the height direction of the support rods, while upper ends of the stopper rods are provided. A movement stopping device for a table with casters, characterized in that a spacing member is provided on the lower surface of the top plate where the tables collide with each other, and the abutting points having different heights can be freely exchanged by operating means. 3. The abutment point according to claim 1, wherein the spacing member movably supports along the lower surface of the top plate, and two first abutment points at the same height and the two abutment points arranged at intervals. A second abutment point lower than that, and an inclined surface is provided between the two first abutment points and the second abutment point between them so that adjacent abutment points are connected to each other. A movement stopping device for a table with casters, wherein the first and second abutting points are selectively made to face the upper end of the stopper rod by a moving operation by the operating means. 4. The operation means according to claim 3, wherein the operating means is a long rod-shaped member and is attached slidably along the lower surface of the top plate, one end of which is connected to the spacing member and the other end of the top plate is connected. The spacing member or the operating means is provided with a return spring for urging the spacing member or the operating means so that the first abutment point of the spacing member faces the abutment point with the upper end of the stopper rod. Table movement stop device with casters.