JP4012319B2 - Handrail holding device and work table - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handrail holding device and a work table.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a work table having a raising / lowering function in which a safety fence is provided at a peripheral portion excluding one side of the work table and a handrail is attached to one side of the work table is used.
The platform is lowered, the handrail is removed, the handrail is lowered, the handrail is straddled, the operator gets on the worktable, and after getting in, the handrail is fitted or the handrail is returned to its original position. Even if the work table is raised and the worker works on the work table at a high place, the work can be safely performed safely because it is surrounded by the fence and the handrail at the peripheral edge.
[0003]
[Problems to be solved by the invention]
However, the above-described workbench has a problem that when the handrail is inserted or removed, the handrail is heavy, and it may take time to attach and detach, and a place for placing the removed handrail has to be provided separately.
Also, even when the handrail is lowered and straddled, the lock is released on both sides of the handrail, and after getting in, the handrail is returned to its original position and the handrail is locked on both sides. There was a problem that it took time to attach and detach.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a safe work table that can be easily attached, held and removed, and can be moved up and down safely.
[0004]
[Means for Solving the Problems]
The present invention has been made to achieve the above object, and the present invention according to claim 1 is a handrail holding device that is provided on a support column and the like and detachably holds a horizontal handrail. It consists of a member and a rod-like member, and both members are fixed at one end side to a support column and the like, and can be rotated in a vertical plane. The other end of the rod-shaped member is directed obliquely downward, and the other end of the rod-shaped member is in contact with the other end of the rod-shaped member extending obliquely downward.
[0005]
The present invention according to claim 2 comprises a floor, a pair of first struts standing on the floor, a pair of second struts, and a U-shaped handrail in plan view,
Both ends of the handrail are rotatably fixed to the first column, and the handrail holding device according to claim 1 is fixed to the second column, so that the handrail holding device can attach and detach the intermediate portion of the handrail. It is to hold.
[0006]
In the present invention, the cross-sectional shape of the handrail, the bowl-shaped member, and the rod-shaped member may be an appropriate shape such as a circle or a square. For example, it is preferable that the outer peripheral surface of the handrail is circular because it is easy to grasp when the handrail is grasped.
[0007]
In addition, the hook-shaped member and the rod-shaped member rotate in the vertical plane when the handrail is put in and out, and at the normal time, the other end of the hook-shaped member is directed obliquely upward, and the other end of the rod-shaped member is directed obliquely downward. In order to do so, a weight may be attached to the outside of the bent portion near the one end side of the hook-shaped member fixed to the column, and the rod-shaped member is similarly fixed to the column. You may attach a weight to the front-end | tip part of the one end side of a rod-shaped member.
[0008]
The other end side of the rod-shaped member extends obliquely downward from the other end side of the bowl-shaped member, but if the handrail hits the tip of the rod-shaped member and can rotate the rod-shaped member upward, an appropriate It can be extended length.
[0009]
The material of the handrail, the bowl-shaped member, and the rod-shaped member may be an appropriate material such as wood, synthetic resin, or metal. For example, it is preferable to use a synthetic resin for the handrail, the bowl-shaped member, and the rod-shaped member in view of aesthetics, light weight, and durability.
[0010]
(Function)
The present invention according to claim 1 is a handrail holding device that is provided on a support column and the like and detachably holds a horizontal handrail, and is composed of a hook-shaped member and a rod-shaped member, and both members have a support column on one end side. The other end side of the rod-shaped member is directed obliquely upward, and the other end side of the rod-shaped member is directed obliquely downward. Since the end side is in contact with the other end side of the bowl-shaped member extending obliquely downward, the bar-shaped member pivots upward by raising the handrail against the extending portion of the rod-shaped member from below, so that the rod-shaped member rotates upward. When the member is separated from the hook-shaped member and the handrail is pushed down to the support column side, the handrail can be received and held inside the hook-shaped member.
[0011]
The present invention according to claim 2 is composed of a floor, a pair of first struts standing on the floor, a pair of second struts, and a U-shaped handrail in plan view. Since the handrail holding device according to claim 1 is fixed to the post so as to be rotatable, the handrail holding device is configured to detachably hold the middle portion of the handrail. The U-shaped handrail can be firmly held by the first support post to which the handrail is pivotably fixed and the second support post to which the handrail holding device is fixed.
[0012]
Also, when removing the handrail, if the handrail that is being held is lifted upward until it exceeds the bar-shaped member, the bar-shaped member rotates downward, the bar-shaped member abuts on the bowl-shaped member, and the handrail becomes a bowl-shaped member. The handrail can be removed from the handrail holding device with a single touch.
Therefore, even if the operator moves from one end of the work table to the other end and does not lock it, the middle part of the handrail can be held and attached with one touch, and the handrail can be attached to the holding device. Therefore, the attachment / detachment time can be shortened.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
1 is an explanatory view of a handrail holding device, FIG. 2 is a perspective explanatory view in which handrail holding devices are attached to both ends of the work table, FIG. 3 is an enlarged explanatory view of one end of FIG. 2, and FIG. FIG. 5 is an explanatory view showing a method of removing the handrail from the handrail holding device.
[0014]
In FIG. 1, A is a handrail holding device, and this handrail holding device A includes a hook-like member 1 and a rod-like member 2.
The rod-shaped member 1 has a round bar shape, a long vertical member 11 at one end, a short vertical member 12 at the other end, and a cross member 13 connecting the lower end of the long vertical member 11 and the lower end of the short vertical member 12. It is made up of.
An attachment hole (not shown) is provided at the upper end of the long longitudinal member 11 and a weight 14 is provided outside the lower end.
The rod-like member 2 has a round rod shape, and is provided with a weight 21 at the upper end and an attachment hole (not shown) at the lower portion of the weight 21 at the upper end.
As shown in FIG. 1, the lower end portion of the rod-shaped member 2 extends from the short vertical member 12 of the bowl-shaped member 1.
[0015]
As shown in FIG. 2, the work table B includes a floor 3, a pair of first struts 4 standing on the floor 3, a pair of second struts 5, a U-shaped handrail 6 in plan view, It consists of a safety fence 7.
The floor 3 is a wooden rectangular shape having a length of about 3 m in the longitudinal direction and a length of about 1 m in the short direction, and a safety fence 7 is provided upward on one side edge of the longitudinal direction. A pair of first struts 4 and a pair of second struts 5 are provided at both side edge portions in the short direction.
A U-shaped handrail 6 is provided on the other side in the longitudinal direction opposite to the safety fence 7.
[0016]
The rod-shaped member 1 and the rod-shaped member 2 are rotated in the vertical plane in the order of the rod-shaped member 2 of the holding device A for the handrail and the long longitudinal member 11 of the rod-shaped member 1 at the substantially central portion of the pair of second support columns. It is attached as possible. In this attachment, bolts are inserted into the respective attachment holes and the attachment holes (not shown) of the pair of second columns, and are fixed with nuts.
This handrail holding device A is provided with a weight 14 at the lower end of the outer side of the elongated member 1 of the rod-shaped member 1 and a weight 21 at the tip of the upper end of the rod-shaped member 2. The short vertical member 12 is directed obliquely upward, and the other end side of the rod-shaped member is directed obliquely downward.
[0017]
The U-shaped handrail 6 is fixed to the pair of first support columns of the work bench so that the tip ends of both ends are pivotable, and the center part of both ends is attached to the center part of the pair of second support columns of the work table. Is attached to the holding device A in a detachable manner.
As shown in FIG. 3, when the worker descends from the work table B, the U-shaped handrail 6 is removed from the handrail holding device A, the handrail 6 is rotated downward, and the work table B is placed on the floor 3. It is set so as to descend over the work table B.
[0018]
Next, the operation will be described while explaining how to install and use the handrail holding device A.
First, a safety fence 7 is set on one edge of the longitudinal direction of the floor 3 of the work table B, a pair of first support columns 4 and a pair of second support columns 5 are turned upward on both side edges in the short direction. And attach.
[0019]
Next, a weight 14 and a weight 21 are attached to the lower end portion of the long member of the eaves-like member 1 of the handrail holding device A and the upper end portion of the rod-like member 2 at the top end. The vertical member 12 is directed obliquely upward, and the other end side of the rod-shaped member is directed obliquely downward.
Next, an attachment hole at the substantially central portion of the pair of second support columns 5, an attachment hole at the distal end portion of the rod-like member 2 of the handrail holding device A, and an attachment hole at the distal end portion of the elongated member 11 of the hook-like member 1 Bolts are inserted into the two and fixed with nuts so that the hook-like member 1 and the rod-like member 2 can be rotated in a vertical plane.
[0020]
Next, the front ends of both ends of the handrail 6 are fixed to the substantially central portions of the pair of first support columns of the work table so as to be rotatable.
Next, substantially the center part of both ends of the handrail 6 is detachably attached to the handrail holding device A attached to the center part of the pair of second columns of the workbench.
[0021]
Next, attachment and detachment of the handrail 6 to and from the holding device A will be described with reference to FIGS. 4 and 5.
When the handrail 6 is attached to the handrail holding device A, as shown in FIG. 4A, the handrail 6 is extended from the lower side of the handrail holding device A to the distal end portion of the bar-like member 2 of the handrail holding device A. Hit the part you are doing.
Next, as shown in (b), the handrail 6 is raised upward.
Next, as shown in (c), the handrail 6 is put inside the hook-shaped member 1 of the handrail holding device A, and the handrail 6 is held by the hook-shaped member 1.
[0022]
Next, when the handrail 6 is removed from the handrail holding device A, the handrail 6 held by the handrail holding device A is raised upward as shown in FIG. The rod-shaped member 2 is rotated upward.
Next, as shown in (b), the handrail 6 is raised to a position above the rod-shaped member 2.
Then, as shown in (c), the rod-shaped member 2 rotates downward, the tip end portion of the rod-shaped member 2 and the short vertical member 12 of the bowl-shaped member 1 come into contact with each other, and the handrail 6 is held by the handrail holding device A. Can be removed.
[0023]
In this manner, the handrail holding device A can detachably hold the horizontal handrail 6 and is attached to the pair of second support columns 5 of the work table B. The handrail holding device A includes the rod-shaped member 1 and the rod-shaped member 2. The members 1 and 2 are fixed to the second support column 5 at one end side and are rotatable in a vertical plane. In a normal state, the rod-shaped member 1 is oriented obliquely upward at the other end side, and the rod-shaped member 2 The other end side of the rod-shaped member 2 is directed obliquely downward, and the other end side of the rod-shaped member 2 is in contact with the rod-shaped member 1 extending obliquely downward from the other end side of the bowl-shaped member 1. The bar-shaped member 2 is rotated upward by being applied to the portion, the bar-shaped member 2 is separated from the hook-shaped member 1, and the handrail 6 is pushed down to the second support column 5, so that the handrail 6 is formed inside the hook-shaped member 1. It can be received and held.
[0024]
The work table B includes a floor 3, a pair of first support columns 4, a pair of second support columns 5 standing on the floor 3, and a U-shaped handrail 6 in plan view. Is fixed to the first support column 4 so as to be pivotable, the handrail holding device A is fixed to the second support column 5, and the handrail holding device B holds the middle portion of the handrail 6 in a detachable manner. Therefore, the U-shaped handrail 6 can be firmly held by the first support column 4 to which the handrail 6 is rotatably fixed and the second support column 5 to which the handrail holding device A is fixed.
[0025]
When removing the handrail 6, if the handrail 6 that is held is lifted upward until it exceeds the bar-shaped member 2, the bar-shaped member 2 rotates downward and the bar-shaped member 2 comes into contact with the bowl-shaped member 1. The handrail 6 can be prevented from entering the inside of the bowl-shaped member 1, and the handrail can be removed from the handrail holding device A with one touch.
Therefore, even if the operator moves from one end of the work table B to the other end and does not lock it, the operator can hold the middle portion of the handrail 6 and attach and detach it with one touch. The attachment / detachment time can be shortened without taking time and effort.
[0026]
【The invention's effect】
As described above, the present invention according to claim 1 is a handrail holding device that is provided on a support column and detachably holds a horizontal handrail, and includes a hook-like member and a rod-like member. The member is fixed at one end to a support column and the like, and is rotatable in a vertical plane. In a steady state, the other end of the rod-shaped member is directed obliquely upward, and the other end of the rod-shaped member is obliquely below. Since the other end side of the rod-shaped member is in contact with the other end side of the rod-shaped member extending obliquely downward from the other end side of the rod-shaped member, the bar-shaped member is lifted by applying the handrail to the extending portion of the rod-shaped member from below. By rotating upward, the bar-shaped member is separated from the bowl-shaped member, and the handrail is pushed down to the column side, whereby the handrail can be received and held inside the bowl-shaped member.
[0027]
The present invention according to claim 2 is composed of a floor, a pair of first struts standing on the floor, a pair of second struts, and a U-shaped handrail in plan view. Since the handrail holding device according to claim 1 is fixed to the support column so as to be rotatable, the handrail holding device is configured to detachably hold the middle portion of the handrail. The U-shaped handrail can be firmly held by the first support post to which the handrail is pivotably fixed and the second support post to which the handrail holding device is fixed.
[0028]
Also, when removing the handrail, if the handrail that is being held is lifted upward until it exceeds the bar-shaped member, the bar-shaped member rotates downward, the bar-shaped member abuts on the bowl-shaped member, and the handrail becomes a bowl-shaped member. The handrail can be removed from the handrail holding device with a single touch.
Therefore, even if the operator moves from one end of the work table to the other end and does not lock it, the middle part of the handrail can be held and detached with one touch, and the handrail can be attached to the holding device. Therefore, the attachment / detachment time can be shortened.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a handrail holding device according to an embodiment of the present invention.
FIG. 2 is a perspective explanatory view in which handrail holding devices are attached to both ends of the work table.
FIG. 3 is an enlarged explanatory view of one end portion of FIG. 2;
FIG. 4 is an explanatory view showing a method of attaching a handrail to a handrail holding device.
FIG. 5 is an explanatory view showing a method of removing the handrail from the handrail holding device.
[Explanation of symbols]
A Handrail holding device B Work table 1 Hook-shaped member 11 Long vertical member 12 Short vertical member 13 Horizontal member 14 Weight 2 Bar-shaped member 21 Weight 3 Floor 4 First support column 5 Second support column 6 Handrail 7 Safety fence

Claims (2)

A handrail holding device that is provided on a support post and detachably holds a horizontal handrail, and includes a hook-shaped member and a rod-shaped member,
The both members are fixed at one end side to a column or the like, and are rotatable in a vertical plane,
In a constant state, the other end of the rod-shaped member is directed obliquely upward, the other end of the rod-shaped member is directed obliquely downward, and the other end of the rod-shaped member extends obliquely downward from the other end of the rod-shaped member. A handrail holding device characterized by being in contact with each other. It consists of a floor, a pair of first struts standing on the floor, a pair of second struts, and a U-shaped handrail in plan view,
Both ends of the handrail are rotatably fixed to the first column, and the handrail holding device according to claim 1 is fixed to the second column, so that the handrail holding device can attach and detach the intermediate portion of the handrail. A workbench characterized by holding.

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