JPH11229611A - Folding pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily carry out erecting and folding work without giving a feeling of unrest to a worker by controlling deviation of a pedestal. SOLUTION: Both right and left legs 2a and 2b mounted to the right and left of a deck 1 in a rotatable manner are braced with diagonal members 6 and 7 in the shape of a cord used for holding up tucked sleeves. A crossing section crosses a joint diagonal member 14 capable of being moved in the longitudinal direction of a bending diagonal member 12 with the bending diagonal member bent in a middle part, and the joint diagonal member 14 reaches the front end of a leg section 2 with a time diagonal member 16. The end of one of the diagonal members is divided into two, and the leg section 2 is connected with two points. Accordingly, the deviation of the pedestal is controlled to the utmost by the diagonal members 6 and 7 used for holding up tucked legs, and no feeling of unrest is given to a worker, By opening and closing of the legs 2a and 2b, the bending diagonal member 12 or the joint diagonal member 14 is also automatically moved to tuck up the legs 2a and 2b with both diagonal members, the erection of the pedestal is completed, and the erecting and folding work can be greatly facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to work tables, display stands, stages and other pedestals used in various fields such as temporary construction sites and horticulture, and in particular, folds and transports when unnecessary. -It is related to a pedestal that can be stored.

[0002]

2. Description of the Related Art There are pedestals used as work tables in various fields, such as construction sites and gardening. These pedestals are not always installed at one place, such as not being used or being moved to a required place, and are generally easily foldable.
This is because it is required to be easily transported and moved to the place where it is used, easily installed, and not bulky when not in use.

A pedestal as shown in FIG. 9 is used as such a foldable pedestal. The figure shows
At the left and right ends of the deck a on which the worker rides, ladders b
The base ends of b are rotatably attached to each other, and when the pedestal is to be erected, the ladders bb are rotated to open right and left.
After that, the connecting members c and c rotatably attached to the intermediate portions of the ladders b and b are hooked on the intermediate portion of the deck a to fix and support the ladders b and b.

[0004]

The problem with such a pedestal is that the fixing of the legs b, b is not sufficient and the legs b, b
Is unstable. In other words, the legs b, b are only connected by the connecting members c, c extending from the intermediate portion to the intermediate portion of the deck a, and the lower portions of the legs b, b do not support anything. In addition, since there is no connection between the left and right legs b, b, the structure of the entire pedestal cannot be integrated, and the support structure is insufficient. When an operator rides on such a pedestal, the supporting portion is unstable and cannot be firmly supported, and the pedestal is fluttered, which is a factor that gives the worker a great sense of anxiety. In addition, the flapping of the pedestal could lead to a serious accident.

Another problem with these pedestals is that they can be easily opened and erected, or easily folded.
When the pedestal is erected, the more complicated the members that fix the legs, the more difficult it is to stand and fold the legs, and the more complicated the work, the more work time is lost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a very rigid supporting structure for a leg portion, is less likely to cause fluttering, and gives a sense of anxiety to a worker on board. It is an object of the present invention to provide a folding pedestal that is easy to stand and fold.

[0007]

The folding pedestal according to the present invention stabilizes the pedestal by crossing a diagonal material like a cross over the left and right legs which can be opened and closed with the connecting portion as a fulcrum. Also, by connecting the two diagonal members at the intersections, the diagonal members cross and cross each other when the legs are opened to support the left and right legs.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A folding pedestal according to the present invention is a pedestal which can be opened and closed to fold, and which supports a leg firmly by crossing a diagonal member between left and right legs in a strut-like manner. . The base ends of the left and right legs are rotatably attached to the left and right ends of the deck on which the worker or the like rides, and the base is erected by being pushed right and left. A diagonal material can be bridged between the base end of one of the right and left legs and the tip of the other leg in a brace shape. The diagonal material is divided, for example, so that it can be connected in the middle, one of the divided parts is rotatably mounted on the base end side of the leg, and the other is rotatably mounted on the tip side of the other leg. It may be of a type that can be attached and detachably connected to both. Similarly, a diagonal member is straddled between the base end portion on the other side on either side and the distal end portion of the other leg so that the two diagonal members cross each other. The intersection of the two diagonal members can be fixed by, for example, a pin.

By crossing the two diagonal members like a cross, the stability of the pedestal is remarkably increased, and the flutter is significantly reduced. The diagonal material is not necessarily a linear member, and may be, for example, one in which one end is bifurcated, and connects the bifurcated distal end of the diagonal material to the base end or the distal end of the leg. Thus, the blur in the width direction of the pedestal can be suppressed. By fixing the intersection of the two diagonal members, it is possible to more appropriately suppress the blur of the leg.

[0010] It is possible to fold the two oblique members with one touch by closing the legs. The left and right legs are rotatably attached to the left and right ends of the deck as described above, and the diagonal material spanning from the base end of one leg to the tip end of the other leg is an intermediate shaft. It is a bent diagonal material that bends around the stop. Both ends of the bent diagonal member are rotatable with respect to the legs. The connecting diagonal material that is crossed with the bent diagonal material has a crossing portion with the bent diagonal material that is movably connected in the longitudinal direction of the bent diagonal material, and has a connecting diagonal that reaches the tip of the opposite leg. It can be fixed so as to be continuous with the material diagonally. Both the connecting diagonal member and the connecting diagonal member are rotatably connected to the leg side. These bent diagonal materials, connecting diagonal materials,
At least one end of the connecting diagonal member has a forked shape, and can be rotatably connected to the leg at two forked points.

In the case of such a pedestal, when the legs are pushed right and left, the bent diagonal material is automatically extended in a straight line by rotating the shaft stopper, and the connecting diagonal material is formed as a bent diagonal material. Move and the two cross each other. The erection work of the pedestal is completed only by connecting the connecting diagonal member and the connecting diagonal member. In the case of folding, it is possible to close the legs and fold by cutting off either the connecting diagonal member or the connecting diagonal member. At least one of the ends of the diagonal member has a bifurcated shape, and the two points of the bifurcated shape are connected to the legs, so that the base can be prevented from being shaken in the width direction.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. The pedestals of the embodiment are all made of steel in consideration of the strength of each part. In FIG. 1 and FIG. 2, reference numeral 1 denotes a deck, which is a steel frame having a steel plate formed by punching a large number of holes. Two pairs of legs 2 are attached to the left and right sides of the deck 1 so as to be openable and closable. In the embodiment, the two round pipes are each formed in a substantially U-shape by bending the middle portion thereof, and the left leg portions 2a and 2a and the right leg portions 2b and 2b are formed.
It has become. The base ends of the legs 2a and 2b, that is, the bent intermediate portions are connected to the deck 1 by the bracket 3.
The left and right legs 2a and 2b can be folded and opened with respect to the deck 1. At the tip of each of the pair of legs 2a and 2a or 2b and 2b, that is, near the landing side,
a and 4b have been passed. A caster 5 with a brake is attached to the tip of one of the left and right legs 2a or 2b. The reason why the casters 5 are not attached to all of the legs 2a and 2b is to suppress the occurrence of the unsteadiness due to the casters 5 as much as possible.

The ends of the upper oblique members 6a and 6b are rotatably attached to the base ends of the left and right legs 2a and 2b. Middle rails 4a and 4b at the tip sides of both left and right legs 2a and 2b
The lower diagonal members 7a and 7b, which are bifurcated, are rotatably attached to the two bifurcated points. Lower diagonal 7a ・ 7
b is given a force to return parallel to the legs 2a and 2b connected by a spring force. Upper diagonal 6a ・ 6
A pin 9 and a cylinder 9 that can move in the longitudinal direction of the diagonal member 6 are attached to each end of b, and hooks 10 are attached to upper portions of the lower diagonal members 7a and 7b, respectively. (FIG. 8)

When the pedestal is to be erected, the legs 2a and 2b are opened by rotating the legs 2a and 2b with respect to the deck 1, and the tips of the upper diagonal members 6a and 6b are lowered to make the lower diagonal members 7a and 7b resist the spring force. And lower the tip. Each hook 10 of the lower diagonal members 7a and 7b
Is hooked on each pin 8.8 of the upper diagonal members 6a and 6b, and the cylinder 9
And the upper slant members 6a and 6b and the lower slant members 7a and 7b are connected to each other and cross each other. The upper diagonal members 6a and 6b
A pin hole penetrates through the intersection, and the two oblique members 6, 7 are fixed by inserting the pin 11 into the pin hole.

As described above, the diagonal members 6 and 7 are crossed over the left and right legs 2a and 2b like a cross, and the intersections are fixed, so that the two legs 2a and 2b are fixed.
To prevent the worker from worrying. Also. Any one of the diagonal members 6 and 7 has a bifurcated shape, and by connecting to the leg portions 2a and 2b at two points, the pedestal becomes uneven in the width direction, that is, in a direction orthogonal to the diagonal members 6 and 7. Is also held down.

FIG. 3 and subsequent drawings show that the oblique material is connected to the legs 2a and 2a.
It is designed to be automatically extended and folded at the same time as opening and closing of b. Deck 1 and legs 2a and 2b
Is the same as described above. One end of a bent diagonal member 12 is rotatably attached to the base end of one leg 2a. An axis of the bent diagonal member 12 is fixed by a pin 13 so that it can be bent with the pin 13 as a fulcrum. The other end of the bent diagonal member 12 is rotatably attached to the middle rail 4b of the other leg 2b.

A connecting diagonal member 14 is provided at the base end of the other leg 2b.
Is rotatable, and an intermediate portion thereof is connected to an intermediate portion of the bent diagonal member 12 so as to be movable in the longitudinal direction of the bent diagonal member 12. That is, as shown in FIG.
The hook member 15 is rotatably attached to the side surface of the fourth member 4,
The hook member 15 is hooked on the bent diagonal member 12 and is movable in the longitudinal direction. In other words, connecting diagonal material 1
The intersection of 4 and the bent diagonal member 12 is movable in the longitudinal direction of the bent diagonal member 12. On the middle crosspiece 4b of the leg 2a,
A forked connecting diagonal member 16 as shown in FIG. 8 is attached,
The pin 8, the cylinder 9 and the hook 10 can be connected to the connecting diagonal member 14.

The case where the folding pedestal as described above is set up will be described. When the legs 2a and 2b are opened with respect to the deck 1, the bent diagonal member 12 rotates with the pin 13 as a fulcrum and extends linearly. Accordingly, the hooking member 15 of the connecting diagonal member 14 moves, and the connecting diagonal member 14 also moves in a more intermediate direction of the bent diagonal member 12. With the left and right legs 2a and 2b fully opened, the bent diagonal member 12 is straightened, and the intersection with the connecting diagonal member 14 is fixed without moving any more. In this state, the connecting diagonal member 16 is tilted so as to be in line with the inclination of the connecting diagonal member 14, and the hook 10
Is hooked on the pin 8 of the connecting diagonal member 14, and the tube 9 is covered and fixed. When the pedestal is folded, the above operation may be performed in reverse.

In the embodiment shown in FIG. 3 and subsequent drawings, only the lower end of one of the diagonal members has a forked shape. However, one or all of the ends of the diagonal material have a forked shape, and the legs 2a and 2b are formed at two points. By connecting to the base end or the front end, it is possible to suppress the blur in the direction orthogonal to the diagonal member, and it does not prevent the plural ends from being formed into a forked shape.

[0020]

The present invention has the above-described configuration, and can obtain the following effects. By crossing and skewing the diagonal material between the left and right legs, it is possible to further suppress the unevenness of the left and right legs, so that a stable pedestal does not give a worker anxiety. By making one end of the diagonal material bifurcated and connecting it to the base end or the distal end of the leg at two points, it is possible to suppress the shake of the pedestal in the direction orthogonal to the diagonal material. Do not give a sense of anxiety. By simply opening or closing the legs on both sides, the bent or connecting diagonal material also automatically moves diagonally to support the legs, so that the pedestal can be set up and folded with one touch, allowing for quick work. It becomes possible. Since the diagonal member is constituted by the bent diagonal member, the connecting diagonal member and the connecting diagonal member, the folded size can be reduced by folding or dividing the diagonal member when the legs are folded. By making parts steel instead of aluminum,
There is less damage and wear, and maintenance costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment in which oblique members are crossed.

FIG. 2 is a front view of the embodiment shown in FIG.

FIG. 3 is a perspective view of an embodiment employing a bent diagonal member and a connecting diagonal member.

FIG. 4 is a side view of a state in which it has begun to open from being folded.

FIG. 5 is a side view in a state where legs are opened.

FIG. 6 is a side view of a standing state.

FIG. 7 is a perspective view of an intersection of a bent diagonal member and a connecting diagonal member.

FIG. 8 is a perspective view of a connecting portion of the connecting diagonal member and the connecting diagonal member.

FIG. 9 is a side view of a conventional pedestal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deck 2 Leg 3 Bracket 4 Middle rail 5 Caster 6 Diagonal material 7 Diagonal material 8 Pin 9 Cylinder 10 Hook 11 Pin 12 Folding diagonal material 13 Pin 14 Connecting diagonal material 15 Hooking member 16 Connecting diagonal material

Claims (3)

[Claims] 1. The left and right ends of the left and right legs are rotatably attached to the left and right ends of the deck, respectively. Cross the diagonal between the base end of the leg on the other side and the tip of the leg on one side so that the diagonal crosses the two diagonals. In addition, a folding pedestal that can fix the intersection of both diagonal materials. 2. An end of the diagonal member connected to at least one of the legs is bifurcated, and is rotatably connected to the legs at two points of the forked ends. Claim 1
The folding pedestal described. 3. The left and right ends of the left and right legs are rotatably attached to the left and right ends of the deck, respectively. In the middle, a bent diagonal material that bends at the intermediate stop is straddled, and the bent diagonal material is rotatably mounted at both ends, and is mounted on the other leg. A connecting diagonal member is rotatably attached to the end side, and the connecting diagonal member can be fixed so as to be obliquely continuous with the connecting diagonal member reaching the tip end side of one of the legs. The middle portion is rotatable crossing the middle portion of the bent diagonal material, and the intersection is movable in the longitudinal direction of the bent diagonal material.
At least one end of the connecting diagonal member or the connecting diagonal member has a bifurcated shape, and can be rotatably connected to the leg at two points of the bifurcation. A folding pedestal that supports the left and right legs when the folded diagonal material is stretched in a straight line when the part is opened, and the connected connecting diagonal material and the connecting diagonal material cross the bent diagonal material.