JPH0133594Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an easy-to-use workbench in which the height of the work stage can be freely adjusted during work.

Various workbenches are used for internal construction work on buildings, etc., but with conventional workbenches, it is necessary to get off the workbench and move the workbench each time there are ceiling beams or other obstacles. is,
There are many things that impede the workability, and there has been a desire for an inexpensive and easy-to-handle workbench that is easy to carry and whose height can be easily adjusted during work.

The present invention has devised a workbench particularly suitable for such internal construction work, etc. As shown in the embodiment of the drawings, the present invention has a frame 1 having casters 1
It consists of a work stage 3 whose outer shape is substantially the same as this frame 2, and four pillars 4 to 7 that support the work stage 3 on the frame 2 in parallel with each other. and 5 and 7 and 6, and the cross angles of these two pairs of cross bars can be adjusted by a hydraulic piston 10, and this hydraulic piston 10 is installed on the work stage 3. It is designed to be driven by a manual hydraulic pump 11.

As shown in FIG. 1, four casters 1 are attached to the four corners of the frame 2, allowing the entire workbench to be moved in any direction and stabilizing the center of gravity of the entire workbench. work stage 3
is made up of a frame with substantially the same shape as this frame 2 and covered with wire mesh, and short pipes 12 are set up at the four corners of this work stage 3.
The legs of a handrail 20 can be inserted into this pipe 12. Therefore, when the handrail is used, it can be attached freely, and when movement is impeded by the presence of the handrail, it can be easily removed. Once installed in this manner, the handrail 20 can also be folded down by hinges at its legs, or can be opened and closed like a door. A ladder 21 can also be removably attached to the work stage 3.

The work stage 3 is supported in parallel on the frame frame 2 by four pillars 4 to 7 having substantially equal lengths.
and 5 and 6 and 7 are crossed at 1/2 of the length of each pillar, and the shafts 13 and 14 are passed through this crossing point to form two pairs of cross bars, and each cross bar has its cross angle free. so that it can be taken easily. In other words, regarding the crossbar of 4 and 5, 4
The lower end of the frame 2 is rotatably fixed to the frame 2 but not horizontally movable, the upper end is rotatably and horizontally slidably attached to the frame of the work stage, and the lower end of the other 5 is fixed to the frame 2 so as to be rotatable but not horizontally movable. It is attached to the frame 2 so as to be rotatable and slidable in the horizontal direction, and its upper end is fixed to the frame of the work stage so that it can rotate but cannot be moved in the horizontal direction. 6 and 7
The same applies to the crossbars 4 and 5.

The horizontal sliding of the lower ends of 5 and 7 and the upper ends of 4 and 6 is achieved by attaching a wheel 16 to each end and rotating the wheel 16 on the rail 15, as shown in FIG. It is designed so that you can do it without any trouble.

Further, this horizontal sliding, that is, the increase/decrease in the cross angle, is performed by the hydraulic piston 10.
At the bottom of the , the cross angle of only one of the two pairs of crossbars can be adjusted.
Only one is provided. That is, as shown in FIG. 3, a hydraulic piston 10 is installed so that the horizontal distance between the upper ends of crossbars 4 and 5 can be expanded and contracted, and this hydraulic piston 10 is attached to the upper ends of crossbars 4 and 5. It is driven by a manual hydraulic pump 11 fixed towards the. This hydraulic pump 1
1 has a lever 17 that can be operated by hand or foot, and by operating this lever 17, the extension length of the hydraulic piston 10 can be freely adjusted.
Thereby, the height of the work stage 3 can be freely adjusted in a stepless manner.

Fig. 4 shows the state when the workbench of the present invention is not used as a workbench. After lowering the workpiece stage 3 to its lowest position, the casters 1 attached to the frame 2 are removed. This caster 1 is shown attached to the lower part of the frame 2 and the lower part of the work stage that come down when the work table itself is rotated 90 degrees. In order to allow the caster 1 to be replaced freely, a first
As shown in the figure, caster insertion holes 18 are provided. By replacing the caster 1 with one suitable for the insertion hole 18 during storage or transportation, even one worker can easily handle the caster 1.

In addition, since the hydraulic piston 10 is stretched across the crossbar directly below the work stage 3, when it is folded, the hydraulic piston 10 is stored behind the work stage 3, and the work stage 3 and the frame 2 are connected together. Because they have substantially the same external shape, they can be folded into a compact shape.

In this way, the present invention has a simple structure and is easy to handle, and also allows workers on the workbench to freely adjust the height of the work stage while working with their hands or feet. It has unprecedented utility as a workbench.
It is very effective even when lifting relatively heavy objects (for example, air conditioners), can be used as an alternative to lift equipment, and can be carried by a single worker, making it ideal for on-site construction. It's easy.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing an embodiment of the workbench of the present invention, Fig. 2 is a sectional view of the sliding end of the crossbar,
Figure 3 is an explanatory diagram of the piston mounting part of the crossbar,
FIG. 4 is a perspective view showing the storage state. 1... Caster 2... Frame frame, 3... Work stage, 4-7... Pillar, 10... Hydraulic piston, 11... Manual hydraulic pump, 15... Rail, 17... Lever, 18... ...Caster replacement hole, 20...Handrail.

Claims (1)

[Claims for Utility Model Registration] A frame 2 having casters 1, a work stage 3 having substantially the same external shape as the frame 2, and four pillars supporting the frame 2 and work stage 3 in parallel with each other. 4 to 7, the four pillars are formed into two pairs of cross bars, and the ends of each pair of cross bars are slid horizontally with respect to the frame frame 2 and the work stage 3. A hydraulic piston 10 for adjusting the cross angle is attached movably to at least one pair of sides of the cross bar, and extends at a position directly below the work stage 3, and a manual hydraulic pump for driving the hydraulic piston 10. 11 is installed on the work stage 3.