JP4491583B2 - A table that can move the top and bottom up and down - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a table capable of adjusting the height of a top plate. In the present specification, the “table” is used in a broad sense including a desk, a table, a cabinet, a table, and the like, which include all having a top plate that can be raised and lowered.
[0002]
[Prior art]
A table that can adjust the height of the top plate has already been developed. This type of table can be used very conveniently because the top plate can be made to the optimum height for the application. As this type of table, for example, various mechanisms have been developed in which a lever is provided on the lower surface of the top plate and the top plate can be moved up and down by operating the lever.
[0003]
[Problems to be solved by the invention]
The table for manually raising and lowering the top board by operating the lever has a drawback that the raising and lowering mechanism is complicated and the manufacturing cost is increased. Further, the conventional table has a drawback that it is difficult to firmly support the top plate when a large load is applied to the top plate.
[0004]
The present invention was developed for the purpose of solving such conventional drawbacks, and an important object of the present invention is to support the top plate firmly and firmly with an extremely simple lifting mechanism. An object of the present invention is to provide a table capable of moving up and down a top plate that can be manufactured at low cost.
[0005]
[Means for Solving the Problems]
The table of the present invention connects the top plate 1 to the main body 3 through the lifting mechanism 2 and includes the following unique lifting mechanism 2.
(A) The lifting mechanism 2 includes a support column 4, a support guide 5, and a stopper mechanism 6. The support column 4 is fixed vertically below the top plate 1 in order to support the top plate 1 horizontally. The support guide 5 is connected so that the column 4 can move up and down. The stopper mechanism 6 stops the column 4 at a predetermined position of the support guide 5 and stops the top plate 1 at a predetermined height.
(B) The support guide 5 is fixed vertically to the main body 3 and is connected to the inside of the support guide 5 so that the column 4 can move up and down.
(C) The stopper mechanism 6 is connected to the stop lever 7 that connects the middle to the support column 4 via the pin 8, the locking stopper 13 that locks and stops the stop lever 7, and the stop lever 7. The elastic body 10 is provided.
(D) The stop lever 7 is mounted on the inner side of the support column 4 so as to be able to rotate in a vertical plane. An operation unit 9 for rotating the lever 7 is provided.
(E) The locking stopper 13 is fixed to the support guide 5 and guides the stop recess 11 of the stop lever 7 to lock the stop lever 7.
(F) The elastic body 10 urges the stop lever 7 in the direction in which the stop recess 11 is guided to the locking stopper 13.
(G) When the operation unit 9 is operated, the stop lever 7 is rotated in a vertical plane in a direction opposite to the direction in which the elastic body 10 is urged.
(H) In a state where the operation unit 9 is not operated, the stop lever 7 stops the support column 4 at a predetermined position of the support guide 5 by locking the stop recess 11 with the locking stopper 13 with the elastic body 10. It is configured as follows.
(J) When the operation unit 9 is operated, the stop lever 7 is rotated, the stop recess 11 is separated from the locking stopper 13, and the support column 4 can be moved up and down along the support guide 5. ing.
[0006]
Further, in the table of the present invention, preferably, a plurality of stop recesses 11 provided at the lower portion of the stop lever 7 have a hooking portion 11A and an inclined surface 11B. The hook portion 11A contacts the locking stopper 13 and prevents the stop lever 7 from descending. The inclined surface 11B is formed so as to gradually protrude outward toward the lower side, and is slid along the locking stopper 13 to raise the stop lever 7. In this table, since the lower surface of the locking stopper 13 is not locked by the stop recess 11, the top plate 1 can be pulled up without operating the operating portion 9.
[0007]
Further, in the table of the present invention, the support guide 5 is a groove type that can move the support column 4 up and down, and the support plate 14 is fixed in a state in which the opening edge of the groove type support guide 5 is connected. The locking stopper 13 is fixed to the support plate 14, and the locking stopper 13 is disposed at a predetermined position. This table has a feature that the locking stopper 13 can be arranged in a predetermined position with a simple structure. Further, since the opening edge of the support guide 5 is connected by the support plate 14 in this table, the strength of the support guide 5 can be increased, and the support plate 5 can be prevented from coming out of the support guide 5 while moving up and down. There is also a feature that can be effectively blocked by 14.
[0008]
Furthermore, the table of the present invention preferably includes a stopper 18 that prevents the lifting mechanism 2 from coming off the support column 4 from the support guide 5. The table having this structure can reliably prevent the support column 4 from coming out of the support guide 5 when the support column 4 is raised too much.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a table that can move a top plate up and down for embodying the technical idea of the present invention, and the present invention does not specify the table as follows.
[0010]
Further, in this specification, in order to facilitate understanding of the scope of claims, the numbers corresponding to the members shown in the embodiments are referred to as “claims” and “means for solving the problems”. It is added to the member shown by. However, the members shown in the claims are not limited to the members in the embodiments.
[0011]
The table shown in FIGS. 1 and 2 includes a top plate 1 and a main body 3 that connects the top plate 1 so as to be lifted and lowered by a lifting mechanism 2. The table shown in the figure is provided with an elevating mechanism 2 at both ends of the top plate 1, and the top plate 1 is held horizontally by the two sets of elevating mechanisms 2. However, although not shown, the table on the small top plate can be connected to the main body by a set of lifting mechanisms. Moreover, the top plate can be connected to the main body in one set of sturdy lifting mechanisms. Therefore, the table of the present invention is not necessarily specified as one in which the top plate is connected to the main body by two sets of lifting mechanisms. The elevating mechanism can also connect the top plate to the main body using one set or three or more sets. However, the two sets of lifting mechanisms 2 provided on both sides of the top board 1 can be operated together with both hands to easily raise and lower the top board 1 and can support the heavy top board 1 in a sturdy state. is there.
[0012]
The elevating mechanism 2 includes a support column 4 fixed vertically to the lower surfaces of both ends of the top plate 1, a support guide 5 fixed to the main body 3, and a support guide 5 fixed to the main body 3. And a stopper mechanism 6 for stopping at a predetermined position.
[0013]
The support | pillar 4 is iron type steel which makes a cross-sectional shape C shape, and is fixing the fixed piece 15 to the T shape at the upper end. The fixing piece 15 is screwed to the lower surface of the top plate 1, and the support column 4 is fixed vertically to the top plate 1. This shape of the column 4 is light and strong. However, the support can also be a metal flat plate.
[0014]
The support guide 5 has a support column 4 disposed on the inner side thereof, and is connected so that the support column 4 can be moved up and down. As shown in the horizontal sectional view of FIG. 3, the support guide 5 is a groove type in which the support column 4 is slidably disposed, and is provided with a fixing plate 16 that is fixed to the side plate 3 </ b> A of the main body 3. The support guide 5 shown in the figure is manufactured by pressing a metal plate, and is provided with fixed plates 16 at the upper and lower portions.
[0015]
In order to fix the support guide 5, the main body 3 is provided with a fixing groove 17 in a direction perpendicular to the inner surface of the side plate 3A as shown in FIGS. The support guide 5 is fitted into the fixing groove 17 and the fixing plate 16 is fixed to the side plate 3A by a method such as screwing. The table having this structure has an advantage that the support guide 5 can be fixed so as not to protrude from the side plate 3A of the main body 3. However, the support guide can be fixed to the inner surface of the side plate of the main body without the fixing groove.
[0016]
The stopper mechanism 6 includes a stop lever 7 that is connected to the column 4 through a pin 8, a locking stopper 13 that locks and stops the stop lever 7, and an elastic body that is connected to the stop lever 7. 10.
[0017]
The stop lever 7 is formed by processing a thick metal plate into a predetermined shape, and is connected to the inside of the support column 4 via a pin 8 so as to be rotatable in a vertical plane as shown in FIG. Furthermore, as shown in FIGS. 2 and 4, the stop lever 7 is provided with a plurality of stop recesses 11 at the lower part thereof in the vertical direction in order to stop the column 4 at a predetermined position. Furthermore, the stop lever 7 is provided with an operation portion 9 for rotating the stop lever 7 at the upper end.
[0018]
As shown in the cross-sectional view of FIG. 3, the pin 8 that connects the stop lever 7 to the support column 4 is fixed to the tip of the mountain-shaped convex portion 19 that has been pressed into a shape that protrudes to the inside of the support column 4. The pin 8 penetrates the mountain-shaped convex part 19 and protrudes from the mountain-shaped convex part 19 and is fixed. The pin 8 shown in the figure has a flange 8A disposed in a concave portion formed on the lower surface of the mountain-shaped convex portion 19, and an E-ring 20 or the like is connected to the tip penetrating the stop lever 7 so that the stop lever 7 cannot be pulled out. It is linked to. With this structure, the pin 8 that connects the stop lever 7 to the column 4 does not protrude from the surface of the column 4 because the flange 8A is disposed in the recess. For this reason, the support | pillar 4 can be smoothly moved inside the support guide 5. FIG. Further, the stop lever 7 disposed at the tip of the mountain-shaped convex portion 19 is slightly separated from the inner surface of the support column 4 and can rotate more smoothly.
[0019]
The plurality of stop recesses 11 are provided at regular intervals below the stop lever 7. These stop recesses 11 are provided by cutting the side edges of the stop lever 7 in the rotation direction of the stop lever 7. As shown in FIG. 4, the stop recess 11 locks the stop lever 7 at a predetermined position while being guided by the locking stopper 13 and prevents the stop lever 7 from descending. Therefore, the stop recess 11 shown in the drawing has a hooking portion 11 </ b> A at the top so that the locking stopper 13 can be locked. The hook portion 11 </ b> A extends from the bottom portion of the recess toward the upper opening edge, and has a shape that can contact the upper surface of the locking stopper 13 to lock the stop lever 7.
[0020]
Furthermore, the stop recessed part 11 has the inclined surface 11B which protrudes outside gradually toward the downward direction. The inclined surface 11B shown in the figure is provided from the bottom portion of the recess toward the opening edge of the stop recess 11 located on the lower side. Thus, the stop lever 7 having the inclined surface 11B at the lower part of the stop recess 11 does not lock the lower surface of the locking stopper 13 with the stop recess 11, so that the operation lever 9 does not rotate the stop lever 7. The stop lever 7 can be slid upward by sliding the inclined surface 11B along the locking stopper 13. Therefore, when the top plate is pulled up, there is no need to operate the operation unit 9 to rotate the stop lever 7.
[0021]
However, the stop recess does not necessarily need to be provided with an inclined surface. As shown in FIG. 5, a hooking portion 11 </ b> A can also be provided at the lower portion, and the end surface between adjacent stop recesses 11 can be a vertical surface 12. The stop recess 11 of this shape can be locked not only on the upper surface but also on the lower surface of the locking stopper 13 by the hooking portion 11A, so that the stop lever 7 moves up and down while the stop recess 11 is guided by the locking stopper 13. Can be surely prevented. When the stop lever 7 is rotated by the operation unit, the locked state is released and the stop lever 7 is moved up and down.
[0022]
Furthermore, the stop recess 11 shown in FIGS. 4 and 5 has a curved bottom, but the stop recess can be shaped as shown in FIGS. 6 and 7. The stop recess 11 shown in FIG. 6 includes a hook portion 11A and an inclined surface 11B formed on a straight line. The stop recess 11 having this shape can be processed very easily. Further, the stop recess 11 shown in FIG. 7 has a bottom surface as a vertical surface, and a vertical surface 12 is also provided between the lower end of the inclined surface 11B and the opening edge of the stop recess 11 positioned below. The stop recess 11 having this shape increases the strength of the hook portion 11A and can effectively prevent the portion from being damaged or deformed.
[0023]
The operation unit 9 is provided at the upper end portion of the stop lever 7 and operates this to rotate the stop lever 7. The operation unit 9 shown in FIG. 4 is provided by bending the upper end portion of the stop lever 7. The operation portion 9 is provided by bending the upper end portion of the stop lever 7 cut into an L shape to the opening portion side of the support column 4 so as to have a horizontal posture. The operation section 9 having this shape has a feature that it can be easily pulled out from the inside of the column 4 having a C-shaped cross section. Furthermore, the operation unit 9 provided by bending the upper end portion of the stop lever 7 has a feature that it can be rotated by directly driving the stop lever 7.
[0024]
Furthermore, the operation unit 9 shown in the figure has an operation lever 9A connected to the tip. The operation lever 9A is formed, for example, by molding plastic into a predetermined shape, and is extended and connected in the horizontal direction. The operation lever 9A is preferably conveniently operated as a horizontal plate. The operation unit 9 having an operation lever 9A at the tip has a feature that can soften the impact applied to the hand during operation and can simplify the operation.
[0025]
The stop lever 7 shown in the figure has an operation portion 9 at the upper end disposed below the top plate 1. The table in which the operation unit 9 is arranged close to the lower side of the top plate 1 has a feature that the operation unit 9 can be operated while holding the top plate 1. This table can easily move the top plate 1 up and down while pulling up the operating portion 9 with a hand holding the top plate 1 and releasing the locked state of the stopper mechanism 6.
[0026]
Further, as shown in FIG. 1, in the table provided with two sets of lifting mechanisms 2 on both sides, the stop levers 7 provided on the respective columns 4 are symmetrical in this figure. The table in which the two sets of stop levers 7 arranged on both sides are symmetrical to each other can be used to pull out the bent operation portion 9 from the support column 4 in the same direction, so that the top plate 1 can be moved up and down. , Each operation part 9 can be conveniently operated by grasping with both hands. When the operation lever 9 is bent, the stop lever 7 can be manufactured in a symmetrical manner by reversing the direction in which the upper end is bent.
[0027]
The locking stopper 13 is fixed to the support guide 5 and locks the stop lever 7 that moves up and down to stop it at a predetermined position. Therefore, the locking stopper 13 has sufficient strength to support the stop lever 7 to which the load of the top plate 1 and the support column 4 is applied. The locking stopper 13 shown in FIG. 4 is fixed to the support guide 5 via the support plate 14. The locking stopper 13 shown in the figure is a cylindrical convex portion, and is fixed to the inner surface of the support plate 14 so as to protrude toward the inner surface of the support column 4. However, the locking stopper 13 can be a prismatic convex portion as shown in FIG. 7, or a protruding plate that can lock the stop concave portion 11 as shown in FIG. The support plate 14 is a metal plate, and is fixed to the support guide 5 in a state where the opening end edges of the groove-type support guide 5 are connected. The support plate 14 disposes the support stopper 4 at a predetermined position and prevents the support column 4 from coming out of the groove-type support guide 5.
[0028]
The elastic body 10 urges the stop concave portion 11 of the stop lever 7 in a direction to press it toward the locking stopper 13 of the support guide 5 when the operation portion 9 is not operated. The elastic body 10 in FIG. 4 is a push spring that presses the lower portion of the stop lever 7 leftward in the drawing. The elastic body 10 which is a pressing spring has one end connected to the stop lever 7 and the other end connected to the inner surface of the support column 4. Although the elastic body is not shown, a leaf spring or a rubber-like elastic body can be used instead of the push spring. Furthermore, the elastic body can also use a coil spring that pulls the upper part of the stop lever to the right in the drawing. Any elastic body that rotates the stop lever and elastically presses the stop recess against the locking stopper of the support guide can be used.
[0029]
As shown in FIG. 4, the stop lever 7 urged in a predetermined direction by the elastic body 10 is held in the locked state with the stop recess 11 guided by the locking stopper 13. When the operation lever 9A of the operation unit 9 is pulled up in the direction indicated by the arrow A, the stop lever 7 rotates about the pin 8 in the direction opposite to the direction in which the elastic body 10 is urged (counterclockwise in the figure). Then, the lower part of the stop lever 7 is rotated in the direction indicated by the arrow B. In this state, the stop recess 11 is separated from the locking stopper 13 and the locked state of the stop lever 7 is released. When the locking state of the stop lever 7 is released, the column 4 can be freely moved up and down, and the height of the top plate 1 is adjusted.
[0030]
Further, the table shown in FIG. 4 includes a stopper stopper 18 that prevents the elevating mechanism 2 from coming off the support column 4 from the support guide 5. The stopper 18 shown in the figure is constituted by a protruding portion 21 and a support plate 14 provided at the lower end of the column 4. The column 4 shown in the figure has two set screws screwed into the surface of the lower end, and the screw heads of these screws protrude to the surface side to form a protruding portion 21. In the structure in which the screw head is the protruding portion 21, the stopper 18 can be provided very easily. In the table having the stopper 18, when the support column 4 is raised too much, the protruding portion 21 comes into contact with the lower surface of the support plate 14 to prevent the support column 4 from coming off the support guide 5.
[0031]
The table having the above structure adjusts the top plate to the most convenient height as follows.
(1) When the operation lever 9 </ b> A of the operation unit 9 is not pulled up, the stop lever 7 is pressed by the elastic body 10 and the stop recess 11 is locked to the locking stopper 13 of the support guide 5. In this state, the stop lever 7 prevents the support column 4 from being lowered. Therefore, the top plate 1 is connected to the main body 3 so as not to descend.
[0032]
(2) When the operation lever 9A of the operation unit 9 disposed on both sides of the top plate 1 is pulled up, the stop lever 7 rotates about the pin 8. When the stop lever 7 is rotated, the stop recess 11 provided in the lower part thereof is released from the locking stopper 13 of the support guide 5. In this state, the stop lever 7 does not stop the column 4 of the top plate 1, so that the top plate 1 can be raised and lowered to a free position. After the top plate 1 is adjusted to a predetermined height, when the operation lever 9A of the operation unit 9 is released, the elastic body 10 rotates the stop lever 7 so that the stop recess 11 becomes the locking stopper 13 of the support guide 5. Lock. For this reason, the top plate 1 is stopped at the adjusted height.
[0033]
However, the table provided with the inclined surface 11 </ b> B in the stop recess 11 of the stop lever 7 can also raise the top plate 1 without operating the operation unit 9. This is because the column 4 can be raised while sliding the inclined surface 11B of the stop lever 7 along the locking stopper 13. When the table 1 is lowered, the table is operated at the desired height by operating the operation unit 9 as described in (2).
[0034]
【The invention's effect】
The table which can move the top plate up and down according to the present invention has an advantage that it can be stopped at a height at which the top plate can be used most conveniently with an extremely simple lifting mechanism. In the table of the present invention, the support recess is stopped at a predetermined position of the support guide by locking the stop recess of the stop lever biased by the elastic body with the locking stopper, and the stop lever is rotated by the operation unit. This is because the stop lever is released from the locked state and the column is moved up and down along the support guide to adjust the height of the top plate. Furthermore, the table of the present invention has a feature that can securely and firmly support the top plate stopped at a predetermined height. In addition, the number of parts of the lifting mechanism can be reduced and the shape of each part can be simplified.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional front view of a table that can move a top plate up and down according to an embodiment of the present invention. FIG. 2 is a partial enlarged cross-sectional view of the table shown in FIG. FIG. 4 is a partially enlarged horizontal sectional view showing a connection structure between a table support and a support guide. FIG. 4 is a perspective view of an enlarged perspective view showing a stopper mechanism of the table shown in FIG. FIG. 6 is a front view showing another example of the stop lever and the locking stopper. FIG. 7 is a front view showing another example of the stop lever and the locking stopper.
DESCRIPTION OF SYMBOLS 1 ... Top plate 2 ... Elevating mechanism 3 ... Main body 3A ... Side plate 4 ... Column 5 ... Supporting guide 6 ... Stopper mechanism 7 ... Stop lever 8 ... Pin 8A ... ９ 9 ... Operation part 9A ... Operation lever 10 ... Elastic body 11 ... Stop Concave portion 11A ... Hook portion 11B ... Inclined surface 12 ... Vertical surface 13 ... Locking stopper 14 ... Support plate 15 ... Fixed piece 16 ... Fixed plate 17 ... Fixed groove 18 ... Fixing stopper 19 ... Crest-shaped convex portion 20 ... E-ring 21 ... Protrusion

Claims (3)

In the table in which the top plate (1) is connected to the main body (3) through the lifting mechanism (2), the top and bottom features the lifting mechanism (2) having all the following configurations. A movable table.
(A) The elevating mechanism (2) includes a support column (4) fixed vertically below the top plate (1), and a support guide (5) connected so that the support column (4) can move up and down. And a stopper mechanism (6) for stopping the column (4) at a predetermined position of the support guide (5).
(B) The support guide (5) is vertically fixed to the main body (3), and a support (4) is connected to the inside thereof so that it can move up and down.
(C) The stopper mechanism (6) includes a stop lever (7) that is connected to the support post (4) through a pin (8), and a stop that stops the stop lever (7) A stopper (13) and an elastic body (10) connected to the stop lever (7) are provided.
(D) The stop lever (7) is mounted on the inner side of the support column (4) so as to be able to rotate in a vertical plane, and has a plurality of stop recesses (11) separated vertically in the lower part. The upper portion has an operation portion (9) for rotating the stop lever (7).
(E) The locking stopper (13) is fixed to the support guide (5), guides the stop recess (11) of the stop lever (7), locks the stop recess (11) and stops the stop lever. Stop descent of (7).
(F) The elastic body (10) biases the stop lever (7) in a direction to guide the stop recess (11) to the locking stopper (13).
(G) When the operation portion (9) is operated, the stop lever (7) is rotated in the vertical plane in the direction opposite to the direction in which the elastic body (10) is urged.
(H) In a state in which the operation portion (9) is not operated, the stop lever (7) is locked by the elastic body (10) with the stop recess (11) being locked to the locking stopper (13). ) At a predetermined position of the support guide (5).
(I) When the operation portion (9) is operated, the stop lever (7) is rotated, the stop recess (11) is separated from the locking stopper (13), and the support column (4) is supported by the support guide (5 ) To move up and down.
(J) The support guide (5) is a groove type that can move the support column (4) up and down, and the support plate (14) is fixed with the opening edge of the groove type support guide (5) connected. Further, the locking stopper (13) is fixed to the support plate (14), and the locking stopper (13) is disposed at a predetermined position.   A plurality of stop recesses (11) provided on the stop lever (7) are in contact with the locking stopper (13) to prevent the stop lever (7) from descending, and gradually downward. An inclined surface (11B) protruding outward, and sliding the inclined surface (11B) along the locking stopper (13), the stop lever (7) can be operated without operating the operating portion (9). The table which can move the top plate of Claim 1 moved up and down.   The table according to claim 1, wherein the elevating mechanism (2) includes a stopper stopper (18) for preventing the column (4) from coming off from the support guide (5).

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