JP2018178390A - Folding bench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding work table. SOLUTION: A first leg body (3A) whose posture can be freely changed between an open leg posture held downward at both ends of a top plate (2) and a closed leg posture stored under the top plate. And the second leg (3B) are provided, and in a folding work table in which the first leg is in the closed leg posture and the second leg is placed in the closed leg posture on the lower side of the first leg. The second leg (3B) is provided with a grounding shoe (6) at the tip and an auxiliary shoe (20) is provided at the base end away from the tip, so that the second leg (3B) is grounded. The shoe (6) and the auxiliary shoe (20) form a seating surface (18) (21) that becomes a downward surface when the legs are closed, and both seating surfaces (18) (21) are formed on the flat surface M1 of the top plate. It is configured to be arranged along a plane M2 substantially parallel to the above. [Selection diagram] Fig. 1

Description

The present invention is configured such that, in a work table which is folded so as to be in a closed posture in which the legs are stored under the top plate, the work table in a folded state can be suitably installed for transport storage etc. It relates to the folding work table.

Conventionally, legs are provided at both ends of the top plate in the girder direction, and the posture is between the open leg posture in which the legs are held downward from the top plate and the closed leg posture stored below the top plate. Changeable folding platforms are known.

With regard to such folding of the legs, the applicant has constructed a folding operation in which one leg is placed on the lower side and the other leg is placed on the lower side with the other leg in the closed position. A table is proposed (Patent Document 1).

JP 2002-339564 A

In the work table proposed by Patent Document 1, when the leg is folded and installed on the floor for transport storage etc., the lower leg in the closed posture is placed in contact with the floor. As a result, the metal legs made of aluminum or the like may be damaged.

In addition, when stacking a plurality of workbenches in a folded state for transport storage etc., place the leg with the closed posture of the upper workbench on the top plate of the lower workbench. However, at that time, the leg of the upper workbench is not placed in a state of being in contact with the top plate of the lower workbench in a well-balanced manner, and there is a problem that the stacking state is unstable and is easily broken . Moreover, also in this case, there is a risk that the top plate and the legs that are in contact with each other may be damaged.

Furthermore, in transportation and the like, the legs that are closed on the lower side of the top plate of the folded work table cause rattling, which causes problems such as noise.

The present invention provides a folding work table which solves the above problems.

Therefore, in the place where the present invention is configured as means, the first leg and the second leg provided with the grounding shoe at the tip end are respectively provided at the both ends of the top plate in the girder direction via the first pivot and the second pivot. A folding worktable that is pivotally connected so that it can freely change between an open posture in which both legs are held downward from the top plate and a closed posture stored below the top plate, The first leg rotating around the first pivot and the second leg rotating around the second pivot are in a state in which the first leg is in the closed leg posture, and the second leg rotates around the first pivot. In the configuration in which the second leg is closed on the lower side, the second leg is provided with an auxiliary shoe at the base end separated from the tip end provided with the ground shoe, and the second leg is provided with an auxiliary shoe. The ground shoe and the auxiliary shoe form a bearing surface that is a downward surface when the leg is in the closed position, and both bearing surfaces are combined with the plane M1 of the top plate. URN lies in comprising configured for placement along a plane parallel M2.

In the embodiment of the present invention, the rotation radius R1 of the first leg centering on the first pivot and the rotation radius R2 of the second leg centering on the second pivot are formed to satisfy R1 <R2. By doing this, in a state in which the first leg is in the closed leg position, the second leg is configured to be in the closed leg position by being superimposed on the lower side of the first leg.

The ground contact shoe of the second leg preferably includes holding means for holding the lower surface and the side surface of the first leg in the closed leg posture, wherein the holding means is the lower surface of the first leg. And it is preferable to form by the elastic material elastically attached to a side surface.

Between the top plates of the two work platforms, with the two work platforms with the first leg and the second leg in the open-leg posture with the second legs facing each other with a space between them. In the configuration in which the extension top plate is erected, it is preferable that the auxiliary shoe is provided with locking means that faces the lower surface and the side surface of the extension top plate in a lockable manner.

According to the present invention, the second leg 3B located on the lower side of the top plate 2 in the state where the work table 1 is folded by setting the first leg 3A and the second leg 3B to the closed leg posture. Since the seating surface 18 of the grounding shoe 6 and the seating surface 21 of the auxiliary shoe 20 can be made to lie in a plane M2 substantially parallel to the plane M1 with respect to the plane M1, the workbench 1 in a folded state is installed on a horizontal floor In this case, by placing the seat surfaces 18 and 21 on the floor surface, it is possible to prevent the second leg 3B from coming into direct contact with the floor surface, and a plurality of work in a folded state When stacking the platform 1, the second leg 3B is mounted by placing the seat surfaces 18 and 21 of the second leg 3B of the upper work table 1 on the top plate 2 of the lower work table 1. And the top plate 2 can be prevented from mutual contact. Moreover, at that time, since the top plates 2 of the work bench 1 sequentially stacked are stacked in a state in which the horizontal plane parallel to the floor surface is held, occurrence of collapse due to lateral shift movement is also preferably prevented.

At this time, if the holding means 19 is formed by the ground shoe 6, the holding means 19 of the ground shoe 6 provided on the second leg 3B which is in the closed leg posture from the lower side in the folded state of the workbench 1 Since the lower surface and the side surface of the second leg 3A in the closed position on the upper side can be held. During transportation or the like, the first leg 3A does not cause rattling or the like.

Moreover, in the folded work table, the first leg 3A is placed on the floor with the seating surface 21 of the auxiliary shoe 20 of the second leg 3B and the seating surface of the grounding shoe 6 stably installed on the floor surface. Since the top 2 is supported in a horizontal state via it, it is possible to use it as a step board which made the floor height of the top 2 LH.

Furthermore, when the auxiliary shoe 20 is provided with the locking means 22, when the extension top plate 23 is erected between the two work benches 1, 1, the auxiliary shoe 20 engages with the lower surface and the side surface of the extension top plate 23. By stopping, it becomes possible to support suitably in a locked state.

The folding work bench which concerns on one Embodiment of this invention is shown, (A) is a perspective view of the state made into an open leg attitude | position, (B) is a perspective view of a state made into a closed leg attitude. It is a perspective view which shows the folding mechanism of a 1st leg. It is a perspective view which shows the folding mechanism of a 2nd leg. (A) is a perspective view of a grounding shoe, (B) is a perspective view of an auxiliary shoe. It is a front view which shows the effect | action which changes a leg from an open leg attitude | position to a closed leg attitude | position. (A) is a front view showing the whole, and (B) is a perspective view showing the operation of the holding means provided on the grounding shoe, in the folded state in which the legs are in the closed posture. An example in the case of constructing an extension top board on two work benches is shown, (A) is a front view showing a state where the extension top board is erected, (B) and (C) are both ends of the extension top board. It is sectional drawing which shows the connection mechanism provided in the part. It is a perspective view which shows the state by which the extension top plate was latched by the latching | locking part of auxiliary shoe regarding the effect | action of auxiliary shoe.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

As shown in FIG. 1, the work bench 1 is provided with a rectangular top 2 and the first leg 3A and the second leg at both ends in the direction of the beam, with the X direction shown in the figure as the beam direction and the Y direction as the end direction. The body 3B is provided. As for this girder direction, when the top 2 is rectangular, it is preferable to set the longitudinal direction as the girder direction of the X direction, but when it is almost square as shown, any direction is X It should be taken as the direction of the digit of the direction. In the top plate 2, side members 2b are provided on both sides extending in the girder direction of the floor material 2a, and end members 2c are provided on both sides extending in the end direction.

Each of the first leg 3A and the second leg 3B includes a pair of column legs 5 connected by the step 4. The ground shoe 6 is provided at the tip of each column leg 5. The grounding shoe 6 is provided at the tip of the telescopic leg 5a when the column legs 5, 5 are provided with the telescopic legs 5a, 5a as shown in the figure.

The first leg 3A and the second leg 3B are provided with folding mechanisms 7A and 7B respectively between both ends of the top 2 in the direction of the girder and the upper end of the column leg 5, and are held downward from the top 2 It is possible to change the posture between the opened leg posture (FIG. 1 (A)) and the closed leg posture (FIG. 1 (B)) stored under the top 2.

(First leg)
As shown in FIG. 2, the folding mechanism 7A of the first leg 3A includes a support bracket 8A fixed to the side member 2b of the top plate 2 and a pivot bracket fixed to the side of the upper end of the column base 5 9A is pivotally connected by a first pivot 10A so that the first leg 3A is pivoted between an open leg and a closed leg about the first pivot 10A, and A lock mechanism 11A is provided to lock both the brackets 8A and 9A in a non-rotatable manner in a state in which the open leg posture and the closed leg posture are taken.

The lock mechanism 11A includes a rod 12 extending through the support bracket 8A from the lower side of the top plate 2, and the tip 12a of the rod 12 is selected as the open leg lock hole 13a and the closed leg lock hole 13b of the pivot bracket 9A. It is configured to be inserted. The rod 12 is provided with an operation portion 12 b operable from below the top plate 2, and is biased by a spring 14 in a direction to insert the tip 12 a into the hole.

Therefore, when the worker moves the rod 12 in the direction of the arrow against the spring 14 through the operation portion 12b, the lock is released, and the pivot bracket 9A is combined with the first leg 3A as described above. 1) It can be pivoted around pivot 10A.

Therefore, when the first leg 3A is placed in the open position by pivoting about the first pivot 10A, the open leg lock hole 13a faces the distal end 12a of the rod 12, so that the spring 14 is attached. The tip end portion 12a of the rod 12 which is biased is inserted into the open leg lock hole 13a, and maintains the open leg posture. Conversely, when the first leg 3A is in the closed position, the closed leg lock hole 13b faces the end 12a of the rod 12, so the end 12a of the rod 12 biased by the spring 14 is the closed leg lock hole 13b. And keep the closed leg posture.

(Second leg)
As shown in FIG. 3, the folding mechanism 7B of the second leg 3B includes a support bracket 8B fixed to the side member 2b of the top plate 2 and a pivot bracket fixed to the side of the upper end of the column base 5 9B is pivotally connected by a second pivot 10B so that the second leg 3B is pivoted between the open leg and the closed leg about the second pivot 10B, and A lock mechanism 11B is provided to lock both the brackets 8B and 9B in a non-rotatable manner in a state in which the open leg posture and the closed leg posture are taken.

The lock mechanism 11B has the same configuration as that of the lock mechanism 11A provided for the first leg 3A described above. Similarly to the above, when the worker moves the rod 12 in the direction of the arrow against the spring 14 via the operation portion 12b, the lock is released and the pivot bracket 9B is pivoted with the second leg 3B as the second pivot It can be turned around 10B. When the second leg 3B is in the open leg position, the tip 12a of the rod 12 is inserted into the open leg lock hole 13a to maintain the open leg position, and when the second leg 3B is in the closed leg position: The distal end 12a of the rod 12 is inserted into the closed leg lock hole 13b to maintain the closed leg posture.

(Grounding shoe)
The grounding shoe 6 mounted on the column base 5 of the second leg 3B will be described based on FIGS. 3 and 4A. The grounding shoes 6 mounted on the column base 5 of the second leg 3B located on the opposite side to the column base 5 shown in the drawing are formed in symmetrical shapes with each other. Hereinafter, the outer side of the column base 5 in the X direction of the girder direction will be described as X1 and the inner side as X2, and the outer side of the column base 5 in the Y direction as the wife direction will be described as Y1 and the inner side as Y2.

As shown in FIGS. 3 and 4A, the grounding shoe 6 has a bottomed box-like insertion portion 15 into which the tip end portion of the column base 5 is inserted and attached, and from the insertion portion 15 in the Y2 direction. It has an extending extension portion 16 and is fixed by a fixing tool such as a bolt in a state in which the tip end portion of the column base 5 is inserted into the insertion portion 15. 4A is a perspective view seen from the X1 side, and FIG. 4B is a view seen from the opposite X2 side with respect to the grounding shoe 6 attached to the pedestal 5 of the second leg 3B shown in FIG. And a perspective view is shown. The attachment portion 15 and the extension portion 16 form a ground surface 17 that is grounded to the floor surface by configuring the bottom surface when the leg is in the open leg posture as illustrated, and the side surface on the X1 side is As shown in FIG. 6, when the second leg 3B is folded as the closed leg posture, the seat surface 18 to be placed on the floor surface is formed by being turned downward.

In the embodiment of the illustrated example, the grounding shoes 6, 6 of the present invention configured symmetrically with respect to the column legs 5, 5 of the second leg 3B are mounted, and the grounding shoe of the present invention is the same common part. 6, 6 are also attached to the column legs 5, 5 of the first leg 3A. However, you may mount | wear with the base legs 5 and 5 of 1st leg 3A the grounding shoes of well-known etc. other than this invention.

The extended portion 16 of the ground shoe 6 forms a thick support wall 16b on the X1 side and a thin holding wall 16c on the X2 side separated from each other through the recess 16a, and the bottom wall 16d constituting the ground plane 17 Both walls 16b and 16c are connected.

The attachment portion 15 of the ground shoe 6 has a holding projection 15a which protrudes from the holding wall 16c on the X2 side, and forms a recess 15b for recessing the surface of the holding projection 15a.

(Holding means)
When the first leg 3A and the second leg 3B are folded with the closed leg posture, the ground shoe 6 mounted on the column leg 5 of the second leg 3B is moved by the holding projection 15a and the holding wall 16c. The holding means 19 holding the column base 5 of the one leg 3A is comprised. As shown in FIG. 6, the column base 5 (indicated by 5A) of the first leg 3A in the closed leg position previously, the column leg 5 (5B) of the second leg 3B in the closed leg position. ) Are stacked from the lower side and hold the column base 5A with the holding means 19 of the grounding shoe 6 facing upward. At this time, the holding wall 16c holds the lower surface of the column 5A, and the holding projection 15a holds the outer surface of the column 5A, thereby holding the column 5A in the vertical and horizontal directions.

The ground shoe 6 is preferably integrally formed of an elastic material such as rubber, whereby the holding wall 16c is elastically contacted to the lower surface of the column base 5A, and the holding projection 15a is an outer surface of the column base 5A. Since the support means 19 elastically holds the column base 5A.

(Auxiliary shoe)
As shown in FIGS. 3 and 4B, an auxiliary shoe 20 is provided at the base end (upper end in the figure) of the column base 5 of the second leg 3B. The auxiliary shoe 20 is a substrate portion 20a extending in the vertical direction in a state of being superimposed on the surface on the X1 side of the column base 5, a refracting portion 20b refracted and extended in the Y2 direction from the lower portion of the substrate portion 20a; A tongue piece 20c is provided extending in the X2 direction from the side edge on the Y1 side of the substrate part 20a, and the side face on the X1 side and the side face on the Y1 side of the column base 5 by the refracting portion 20b and the tongue piece 20c. In a state of holding the head by means of a fixing tool such as a bolt.

The surface on the X1 side of the substrate portion 20a and the refracting portion 20b is, when the second leg 3B is folded as the closed leg posture as shown in FIG. The surface 21 is formed.

The auxiliary shoe 20 constitutes a locking means 22 by the lateral edge 22a of the upper edge of the bent portion 20b and the longitudinal edge 22b of the side edge of the substrate 20a on the Y2 side, which will be described later. When the extending top plate 23 is provided, as shown in FIG. 8, the lower surface of the side member 23b of the extending top plate 23 faces the lateral edge 22a so as to be able to be locked, and the side surface of the side member 23b is The vertical edge 22b is configured to be capable of being locked.

(Action)
The work table 1 is used by setting the first leg 3A and the second leg 3B in an open posture in which the first leg 3A and the second leg 3B are held downward from the top plate 2 as shown in FIG. Can ride on the top 2 to perform work at high places. When using for transport storage etc. without using the work table 1, as shown in FIG. 1 (B), the first leg 3A and the second leg 3B are in the closed leg posture stored under the top plate 2 and By doing this, it is possible to fold it compactly, and it is possible to stack a plurality of work benches 1 up and down.

As shown in FIG. 5, after the first leg 3A is turned about the first pivot 10A in the closed position, the second leg 3B is folded about the second pivot 10B, as shown in FIG. A closed leg posture is made to be superimposed on the lower side of the first leg 3A by turning.

In order to enable such an overlapping closed posture, the turning radius R1 of the first leg 3A centered on the first pivot 10A and the second leg 3B centered on the second pivot 10B The rotation radius R2 is formed to satisfy R1 <R2. That is, the first pivot 10A of the pivot bracket 8A is provided at a position where the distance (R1) from the first leg 3A is shortened, and the second pivot 10B of the pivot bracket 8B is from the second leg 3B Are provided at positions where the separation distance (R2) of the In the case of the illustrated embodiment, the second pivot 10B is further provided at a lower position than the first pivot 10A as indicated by the height H, whereby the difference (R2-R1) of the turning radius is obtained. Even when the second leg 3B is relatively small, the second leg 3B can be pivoted to a substantially horizontal closed position in a state in which the second leg 3B is superimposed on the lower side of the first leg 3A in the closed position.

As shown in FIG. 6A, the second leg 3B located on the lower side in a state in which the workbench 1 is folded by setting the first leg 3A and the second leg 3B in the closed leg posture, The bearing surface 18 of the ground shoe 6 and the bearing surface 21 of the auxiliary shoe 20 are aligned with a plane M2 substantially parallel to the plane M1 with respect to the plane M1 of the top plate 2. Therefore, when the workbench 1 in the folded state is installed on a horizontal floor surface, the seat surfaces 18 and 21 are placed on the floor surface, so the second leg 3B made of metal such as aluminum is on the floor surface. While being able to prevent contact | abutting, the top 2 is installed along the horizontal surface parallel to a floor surface. Therefore, when stacking the plurality of workbenches 1 in the folded state, the seat surfaces 18 and 21 of the second leg 3B of the upper workbench 1 are suitably mounted on the top plate 2 of the lower workbench 1 The top plate 2 of the work bench 1 which is disposed and which prevents the mutual contact between the second leg 3B made of metal such as aluminum and the top plate 2 and which is stacked one after another is parallel to the floor surface. Since the layers are stacked in the held state, there is no risk of collapse due to lateral shift movement.

With the work table 1 folded, as shown in FIG. 6B, the grounding shoe 6 in the lower second leg 3B is a column base 5 in the upper second leg 3A by the holding means 19. The lower and side surfaces of the Therefore, the first leg 3A does not rattle during transport and the like.

Furthermore, as shown in FIG. 6, the folded work table 1 is mounted on the floor surface of the second shoe 3 </ b> B with the seating surface 21 of the auxiliary shoe 20 and the seating surface of the grounding shoe 6 stably installed. Since the table-top 2 is horizontally supported via the first leg 3A, it is possible to use it as a step board with the height above the floor of the table-top 2 being LH. At this time, the top plate 2 is positioned immediately above the auxiliary shoe 20 of the second leg 3B and supported by the pivot bracket 9B, and positioned immediately above the ground shoe 6 of the second leg 3B by the holding means 19 Since it is supported by the held first leg 3A and the pivot bracket 9A, it is possible to withstand the load firmly.

(Extended top plate)
When performing work in a high place by arranging two work benches 1 and 1 in an open posture side by side, as shown in FIG. 7, an extended ceiling is provided between the top plates 2 of the two work benches 1 and 1. The work floor area is expanded by erecting the plate 23.

The extended top plate 23 is provided to conform to the standard of the top plate 2 of the work bench 1, and side members 23b are provided on both sides extending in the girder direction of the floor material 23a, and from the end surface member 23c in the end direction to the girder direction A protruding overlapping plate 23d is extended.

When connecting the extension top plate 23 to the workbench 1, as shown in FIG. 7 (B) (C), the tip of the overlapping plate 23d of the extension top plate 23 is superimposed on the top plate 2 of the workbench 1, The pin 24 is inserted into the vertical hole 25 of the top plate 2 and locked, and the tip of the rod 27 slidably provided below the floor 23a of the extension top plate 23 via the spring 26 is an end face member The distal end portion of the rod is inserted into and locked to the lateral hole 28 provided in the end surface member 2c of the work table 1 by inserting and removing from 23c.

In the work table 1 of the present invention, when the extension top plate 23 is erected, the two work tables 1, 1 are arranged such that the respective second legs 3B face each other at a distance, and in that state , The extension top 23 is connected by the above-mentioned method.

Since the mutually opposing second legs 3B of the two work platforms 1, 1 are each provided with the auxiliary shoe 20, as shown in FIG. 8, the locking means 22 of the auxiliary shoe 20 is an extended top plate The lower and side surfaces of the 23 side members 23b can be locked. That is, the laterally facing edge 22a constituting the locking means 22 faces the lower surface of the side member 23b in a lockable manner, and the vertically facing edge 22b faces the outer surface of the side member 23b in a lockable manner.

Therefore, the downward deformation due to the load of the extension top plate 23 is prevented by the lateral edge 22a being locked, and the positional deviation of the extension top plate 23 in the lateral direction (Y direction) is related to the vertical edge 22b. It is prevented by stopping.

The locking means 22 formed by the auxiliary shoe 20 is configured to face the lower surface and the side surface of the side surface member 23b of the extension top plate 23 so as to be lockable in the case of the illustrated embodiment. In a state in which the top plate 23 is connected, the lower surface and the side surface of the side surface member 23b may be in contact with and locked.

Furthermore, although the illustrated configuration shows an embodiment in which the auxiliary shoe 20 is provided to the second leg 3B, the same auxiliary shoe 20 may be provided to the first leg 3A.

DESCRIPTION OF SYMBOLS 1 work bench 2 top plate 2a floor material 2b side member 2c end surface member 3A 1st leg 3B 2nd leg 4 tread 5 pillar leg 5a telescopic leg 6 ground shoe 7A, 7B folding mechanism 8A, 8B support bracket 9A, 9B Pivot bracket 10A first pivot 10B second pivot 11A, 11B lock mechanism 12 rod 12a tip 12b operation portion 13a opening leg lock hole 13b closing leg lock hole 14 spring 15 insertion portion 15a holding projection 15b recess 16 extension 16a recess 16b support wall 16c holding wall 16d bottom wall 17 contact surface 18 seat surface 19 support means 20 auxiliary shoe 20a substrate portion 20b refracting portion 20c tongue piece 21 seat surface 22 locking means 22a horizontal edge 22b vertical edge 23 extended top Plate 23a Floor material 23b Side member 23c End surface member 23d Overlapping plate 24 Pin 25 Vertical hole 26 Spring 27 Rod 2 Lateral hole

Claims (5)

The first leg (3A) and the second leg (3B) provided with the ground shoe at the tip are respectively mounted on both ends of the top plate (2) in the direction of the girder: the first pivot (10A) and the second pivot (10B) A folding worktable that can be freely pivoted between the open leg posture in which both legs are held downward from the top plate and the closed leg posture stored below the top plate, and pivotally pivoted via the And
The first leg (3A) pivoting about the first pivot (10A) and the second leg (3B) pivoting about the second pivot (10B) close the first leg In the configuration in which the second leg is in the closed leg position by being stacked on the lower side of the first leg in the state of being in the attitude,
The second leg (3B) is provided with an auxiliary shoe (20) at a base end separated from a tip end provided with a grounding shoe (6),
The ground contact shoe (6) and the auxiliary shoe (20) of the second leg (3B) form seat faces (18) and (21) which are downward faces when in the closed leg posture, and both seat faces (18) A folding bench, characterized in that (21) is arranged along a plane M2 substantially parallel to the plane M1 of the top plate. The first leg is formed by forming the turning radius R1 of the first leg about the first pivot and the turning radius R2 of the second leg about the second pivot such that R1 <R2. 2. The folding workbench according to claim 1, wherein the second leg is placed in the closed posture when the body is in the closed posture and the second leg is placed on the lower side of the first leg. The ground contact shoe (6) of the second leg (3B) is characterized in that a holding means (19) for holding the lower surface and the side surface of the first leg (3A) in the closed leg posture is provided. A folding workbench according to claim 1 or 2. The folding work bench according to claim 1, 2 or 3, wherein the holding means (19) is formed of an elastic material elastically in contact with the lower surface and the side surface of the first leg. The two second legs (3B) face each other with an interval between the two work benches (1) and (1) in which the first leg (3A) and the second leg (3B) are in the open leg posture In the configuration in which the extension top plate (23) is erected between the top plates of both work benches,
The auxiliary shoe (20) according to claim 1, 2, 3 or 4, characterized in that the auxiliary shoe (20) is provided with locking means (22) lockably facing the lower surface and the side surface of the extension top plate (23). Folding bench.

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