JP4063793B2 - Portable worktable - Google Patents

Description

  The present invention relates to a portable work table.

As shown in FIG. 7, the work floor 21 of the portable work table 20 used in the construction work is provided with sensing protrusions 22 for preventing stepping off at both ends in the long side direction. The detection protrusion 22 is a plastic cap, which is installed by being inserted into an existing hole 23 of the work floor 21. As another portable work table, for example, the invention of Japanese Patent Application Laid-Open No. 2004-68436 is known.
JP 2004-68436 A

  However, since the sensing protrusions in the portable workbench are made of plastic, the cap portion is easily broken, and there is a problem that extra maintenance costs are required. There is also a problem that it is difficult to detect with the soles of the workers because the detection protrusions are small and the installation interval is large.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a portable work table in which the end of the work floor can be sensed by the sense, visual and auditory sense of the soles of the workers. It is.

A portable workbench for solving the above problems is provided on the lower surface of the work floor on which the sensing plate for preventing stepping off provided at both ends of the long side direction of the work floor and the sensing plate is installed. It consists of a rotating plate that rotates around a support shaft, and the sensing plate is formed in a mountain shape by joining two long pieces with a hinge, and only one of the long pieces is attached to the work floor with a hinge One of the long pieces is supported by a support pin that protrudes from the top surface of the rotating plate and protrudes from the work floor.
In addition, the portable worktable rotates around a support shaft provided on the lower surface of the work floor where the sensing plate is installed, and a sensing plate for preventing stepping off provided at both ends of the long side of the working floor. A rotating plate, a spring installed between the rear upper surface of the rotating plate and the lower surface of the work floor, and a pneumatic tube provided with an air whistle provided on the lower surface of the work floor on the rear side of the rotating plate. The sensing plate is formed in a mountain shape by joining two long pieces with a hinge, and only one of the long pieces is attached to the work floor with a hinge, and one long piece is the tip of the rotating plate. It is characterized by being supported by a support pin protruding from the work floor and protruding from the upper surface. In addition, a projection is provided on the surface of the sensing plate, including that the surface is colored with a chromatic color.

  When the operator steps on the mountain-shaped sensing plate, the sensing plate becomes horizontal, so that the end of the work floor can be sensed by the soles. When the operator steps on the mountain-shaped sensing plate, the sensing plate becomes horizontal and at the same time the tube shrinks and an air whistle is sounded, so that the end of the work floor can be sensed by the worker's hearing. Further, since the sensing plate is colored with a chromatic color, the end of the work floor can be sensed by the operator's vision.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a portable work table (hereinafter referred to as a work table) according to the present invention will be described with reference to the drawings. In the present embodiment, the same components are described with the same reference numerals, and only different components are described with different reference numerals.

  1 to 4 show a workbench 1 according to the first embodiment. This work table 1 is supported by four legs 2 and is provided with sensing plates 4 for preventing stepping off, which are installed along the short side direction at both ends in the long side direction of a work floor 3 having a length of 1130 to 1500 mm. And a rotating plate 5 provided on the lower surface of the work floor 3 on which the sensing plate 4 is installed, rotating around the support shaft 6, and installed between the rear upper surface of the rotating plate 5 and the lower surface of the work floor 3. And a pneumatic tube 8 provided with an air whistle 9 provided on the lower surface of the work floor 3 on the rear side of the rotary plate 5.

  The width of the sensing plate 4 is a size that fits between the folded legs 11 when another work table 10 is stacked on the work floor 3, that is, the width where the legs 11 are installed is the side end of the work floor 3. Is the size formed. The sensing plate 4 is colored with a chromatic color such as red, blue, or yellow so that it can be easily sensed by the operator's vision, and a protrusion 12 is provided thereon.

  The sensing plate 4 has two long pieces 13 and 14 joined by a hinge 15, and only one of the long pieces 13 is attached to the work floor 3 by the other hinge 16 and the other long piece 14. Is in a free state without being fixed. Further, the one long piece 13 is supported by a support pin 17 protruding from the work floor 3 so that the sensing plate 3 has a mountain shape. This chevron is formed by the support pin 17 being always pushed upward by the spring 7 and becomes horizontal when pushed from above, but when the force is lost, it returns to the original chevron by this spring action. ing.

  Further, the rotating plate 5 provided with the projecting support pins 17 is rotatably provided on the support shaft 6 on the lower surface of the work floor 3, and the tip side is always pushed upward by the spring 7 on the rear side. Further, a pneumatic rubber or vinyl tube 8 having an air whistle 9 is installed on the lower surface of the work floor 3 on the rear side of the rotating plate 5, and this tube 8 is pushed up on the rear end side by the rotation of the rotating plate 5. As a result, the air whistle 9 sounds as it is crushed.

  Therefore, as shown in FIG. 4, when an operator steps on the sensing plate 4 with his / her foot, the rotating plate 5 rotates by pressing the support pin 17 and the tube 8 is crushed by pushing the support pin 17. And the operator can sense the edge of the work floor 3 by hearing. Next, when the operator removes his / her foot from the sensing plate 4, the rotating plate 5 is rotated by the spring 7, and the horizontal sensing plate 4 is pushed up by the support pins 17 to form a mountain shape. At this time, the tube 8 sucks air and becomes larger again. However, if the rotating plate 5 and the lower surface of the tube 8 are bonded, the tube 8 is forcibly enlarged by the rotational force of the rotating plate 5.

  FIG. 5 shows a workbench 18 according to the second embodiment. This work table 18 is obtained by installing the spring 7 in the tube 8, and other than this, the work table 18 has the same configuration as the work table 1 of the first embodiment. The tube 8 sucks air by the force of the spring 7 and becomes large. Therefore, when the operator removes his / her foot from the sensing plate 4, the rotating plate is rotated by the spring 7, and the horizontal sensing plate 4 is pushed up by the support pins 17 to form a mountain shape, and the tube 8 also forces air. Inhale and grow.

  FIG. 6 shows a work table 19 according to the third embodiment. This work table 19 does not have the tube 8 provided with the air whistle 9, and the other configuration is the same as that of the work table 1 of the first embodiment. Even if the tube 8 is not provided, when the worker steps on the sensing plate 4 with his / her foot, it becomes horizontal, so that the worker can sense this with his / her sole and sense the end of the work floor 3. When the operator removes his / her foot from the sensing plate 4, the sensing plate 4 becomes chevron in the same manner as described above.

It is a partially-omission perspective view of the worktable of a 1st embodiment. It is a partially omitted sectional view of the workbench of the first embodiment. It is a partially-omission plan view of the workbench of the first embodiment. It is sectional drawing of the work table with which the sensing plate became horizontal. It is a partially-omitted sectional view of the workbench of the second embodiment. (1) is a partially omitted sectional view of the work table of the third embodiment, and (2) is a sectional view in which the sensing plate is horizontal. It is a conventional work table, (1) is a plan view and (2) is a partially omitted sectional view.

Explanation of symbols

1, 10, 18, 19, 20 Work table 2, 11 Leg 3, 21 Work floor 4 Sensing plate 5 Rotating plate 6 Spindle 7 Spring 8 Tube 9 Air whistle 12 Protrusion 13, 14 Long piece 15, 16 Hinge 17 Support Pin 22 Protrusion for sensing 23 Existing hole

Claims (3)

  It comprises a sensing plate for preventing stepping off provided at both ends in the long side direction of the work floor, and a rotating plate that rotates on a support shaft provided on the lower surface of the work floor where the sensing plate is installed, The sensing plate is formed in a mountain shape by joining two long pieces with a hinge, and only one of the long pieces is attached to the work floor with a hinge, and one long piece is the top surface of the tip of the rotating plate. A portable work table characterized by being supported by a support pin protruding from the work floor.   A sensing plate for preventing stepping off provided at both ends in the long side direction of the work floor, a rotating plate provided on the lower surface of the working floor on which the sensing plate is installed, and rotating about a support shaft, the rotating plate A spring installed between the upper surface of the rear portion and the lower surface of the work floor, and a pneumatic tube provided with an air whistle provided on the lower surface of the work floor on the rear side of the rotating plate, the sensing plate being composed of two sheets A long piece is joined with a hinge to form a mountain shape, and only one of the long pieces is attached to the work floor with a hinge, and one long piece projects from the top surface of the tip of the rotating plate. A portable worktable supported by a support pin protruding from the top.   The portable worktable according to claim 1 or 2, wherein a projection is provided on the surface of the sensing plate, and the surface is colored with a chromatic color.

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