JP4095995B2 - Portable worktable - Google Patents

Description

  The present invention relates to a portable work table used for construction work sites, interior / exterior work such as ceilings and wall surfaces of buildings, electrical wiring work, and the like.

  Conventionally, as shown in FIG. 8, for example, the portable work table 1 has a ladder-shaped main leg 4 formed by attaching a plurality of step bars 5 at appropriate intervals between a pair of support legs. A rectangular top plate 3 is rotatably mounted between a pair of legs 4, and a stay 7 that is freely bent between the top plate 3 and the main leg 4 is interposed.

  In addition, rod-like clasp members 6 are erected at the four corners of the top plate 3 and handrails 21 are erected along the longitudinal direction as means for preventing the fall from the top plate 3.

In use, the main leg 4 is lifted, the clue member 6 is gripped, and the work is performed while standing on the top plate 3 or walking. In this case, in order to prevent the tool 3 placed on the top plate 3 from slipping or falling due to the work being distracted or the like, the top plate 3 is appropriately covered over the entire surface. In general, a large number of anti-slip holes 2 are formed at intervals (see, for example, Patent Document 1).
JP 2001-152659 A

  The top plate 3 has a relatively long length of, for example, 1 m50 cm. For example, when the work is performed on the top plate 3, the feet tend to be neglected when the work is distracted. There is a risk of falling over and falling. Regarding prevention of this danger, the handrail 21 is separately attached in the longitudinal direction of the top plate 3 as described above, but both sides in the longitudinal direction are blocked by the handrail 21 and hinder the work. In some cases.

  In addition, the handrail is not always attached in the longitudinal direction, and in particular, the side of the top plate 3 (especially in the width direction) serves as a lifting surface with the main leg 4, so an auxiliary handrail is provided here. Since this hinders work, it has been difficult to perform, and hitherto, no effective method has been considered as means for preventing falls by stepping on the wife side.

  The anti-slip hole 2 has an anti-slip effect, but has a diameter as small as about 14 mm. Therefore, in the case of a hole of this size, even if the hole is stepped on, the presence of the hole is detected on the sole. It is difficult to do this, and this hole cannot be used as a means for preventing fall.

  The object of the present invention is to eliminate the inconveniences of the conventional examples, without causing troubles in lifting and lowering work on the top plate, reliably preventing falling due to stepping off from the top plate, and being safe and difficult to roll. It is to provide a portable worktable.

In order to eliminate the inconvenience of the conventional example, the present invention provides a portable work table in which a top plate is bridged between a pair of main legs. A plurality of button-like protrusions, each having a trapezoidal shape, a height of about 3 to 10 mm, a flat portion having a diameter of about 10 to 30 mm, and a trapezoidal shape as a whole , are separated from the top plate, and the cap and leg And is detachably inserted into a non-slip hole formed in the top plate , provided at appropriate intervals, and has a width that can be sensed by the sole along the entire length of the top plate in the longitudinal direction near both ends. A line formed by a bent portion obtained by bending the upper end edge of a substantially U-shaped scaffolding plate cover, which is mounted over the entire length, at the end in the width direction of the top plate, as an anti-step-off member having a belt-like projection having Provided as a step-off prevention member It is intended to be subject matter of.

According to the present invention, an operator who works on the top board walks on the top board following the progress of the work, but when walking while working, he is distracted by the work and pays attention to his feet. Often does not reach. In this case, when approaching the end of the wife on the main leg 4 side of the top 3, the presence of linear protrusions and button-like protrusions formed in the width direction is known with the sense of the sole of the foot. Therefore, even if you do not see your feet directly with your eyes, you know that you have come to the end of the top side of the couch as if you are feeling the soles of your feet. Can prevent stepping off.

Also, if you walk on the top board and reach the end along the longitudinal direction of the top board, you can step on the belt-like protruding part formed here and come to the end along the longitudinal direction of the top board as if you are feeling the soles of your feet. Know that. In this case, since the belt-like protrusion has a predetermined width, it can be sufficiently recognized by the sole of the foot even when wearing shoes, and is formed over the entire length of the top plate 3 in the longitudinal direction. It can be sensed even if you put your foot on it.

  As described above, the portable worktable of the present invention can reliably prevent falling due to stepping off from the top plate without providing a handrail, and does not hinder elevating or work on the top plate, In addition, it is safe to crawl.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a top plate as a main part showing an embodiment of a portable worktable of the present invention, and FIG. 2 is a perspective view showing an embodiment of the portable worktable of the present invention. The basic structure of the workbench 1 is basically the same as that of the conventional example described with reference to FIG. 8, and includes a pair of ladder-shaped main legs 4 and a top plate 3 spanned between the upper parts of the pair of main legs 4. The top plate 3 is formed with a large number of anti-slip holes 2 at appropriate intervals over the entire surface.

  In addition, rod-shaped clue members 6 are erected at the four corners of the top plate 3, that is, at the lifts between the main legs 4 and the top plate 3. These main legs 4, top plate 3 and clue member 6 are made of aluminum alloy.

  According to the present invention, in the portable work table having such a configuration, as shown in FIGS. 1 and 3, the belt-like protrusion 8 having a width that can be sensed by the sole along the length of the top plate 3 along the longitudinal direction is removed. It provided as a prevention member.

  The belt-like protruding portion 8 is integrally formed in advance by plastic working or the like when the top plate 3 is manufactured, and the shape of the belt-like protruding portion 8 is assumed to have a predetermined width so that the shape can be sensed by the sole in the state of wearing shoes. Is formed in a trapezoidal cross section with a width of about 10 mm, and the side surface of the protruding portion is an inclined surface 8a. As described above, the side surface of the belt-like protruding portion 8 is made to be the inclined surface 8a, which makes it difficult to bend and not only is safe, but also the bending rigidity of the top plate 3 can be improved.

  The projecting portion formed over the entire length along both ends in the longitudinal direction of the top plate 3 can be formed not only in the belt-like shape as described above but also in the shape of a thin line.

Further, in the present invention, as shown in FIGS. 1 and 4, a linear protrusion 9 that can be sensed by the sole of the foot along the width direction of the top plate 3 along the vicinity of both ends is provided as a step-off preventing member. The linear protrusion 9 is formed by a bent portion obtained by bending the upper end edge of the scaffold plate cover 10 having a substantially U-shaped cross section attached to the end portion in the width direction of the top plate 3 upward at a right angle .

  Then, as shown in FIG. 1, the length of the belt-like protrusion 8 and the width of the scaffold plate cover 10 are set so that the edge of the belt-like protrusion 8 abuts the side surface of the linear protrusion 9 formed by bending. To do. Thereby, since the edge of the band-shaped protrusion 8 hits the side surface of the linear protrusion 9 directly below, it becomes easy to perform the edge processing of the band-shaped protrusion 8.

  Furthermore, as shown in FIGS. 1, 3, and 4, a plurality of buttons that can be sensed by the sole as a slip-off preventing member inside the belt-like protruding portion 8 and the linear protruding portion 9 in the vicinity of the end of the top side of the top plate 3 The protrusions 11 are provided at appropriate intervals. The button-shaped protrusion 11 is formed on the button-shaped protrusion, and may be formed of a cap and a leg as a separate body from the top plate 3. The anti-slip hole 2 formed in the top plate 3 is used, and a cap-shaped protrusion 11 is inserted into the anti-slip hole 2.

  The button-like protrusion 11 has, for example, a height of about 3 to 10 mm with a flat upper surface, a diameter of the plane portion of about 10 to 30 mm, and a trapezoidal shape as a whole. The planar shape may be circular or rectangular. .

  When the member for preventing stepping off by the button-like protrusion 11 is separate from the top plate 3, the plurality of protrusions 11 are individually inserted into the anti-slip holes 2. As shown in FIGS. 5 to 7, a plurality of button-like projections 12 are provided at appropriate intervals on the top plate 3, which is located near the end on the wife side, and is provided in a strip-like protruding plate that can be sensed by the sole of the foot. 13 can also be attached.

  The belt-like protruding plate 13 is made of an aluminum alloy or the like, and the protrusions 12 are integrally formed when the elongated plate-like main body 13a is formed. Further, screw holes 14 for attachment to the top plate 3 are formed in the vicinity of both ends in the length direction of the main body 13a, and screws 15 are inserted into the screw holes 14 to attach the belt-like protruding plate 13 to the top plate 3. . For attachment to the top plate 3, a non-slip hole 2 formed in the top plate 3 is used.

  Further, the belt-like projecting plate 13 projects in the center along the length direction, and the whole is formed in a cross-sectional mountain shape. The top of the chevron may be formed in a linear shape as shown, but it may be rounded.

  Next, the operation will be described. An operator who works on the top board 3 walks on the top board 3 following the progress of the work. In many cases, attention is not paid. In such a case, when approaching the end on the side of the top leg 3 on the main leg 4 side, the presence of the linear protrusions 9 and the button-like protrusions 11 formed in the width direction is known with the sense of the sole of the foot. .

  Since the linear protrusion 9 is pointed by the thickness of the scaffold board cover 10, it can be sensed even with the sole of the foot while the shoe is worn, and the button-like protrusion 11 is also formed with a flat upper surface. The length of the flat portion is about 10 to 30 mm, and the whole is formed in a trapezoidal shape, so that the presence of the shoe can be fully recognized even with the shoes on. And since the linear protrusion part 9 is formed over the full length of the width direction of the top plate 3, it can recognize in any position of the width direction.

  Therefore, since the user knows that he / she has reached the longitudinal end of the top board 3 without feeling directly at his / her eyes, he / she stops walking and pays attention to his / her feet. Can be prevented from stepping on. In this case, since the button-like protrusion 11 is located inside the linear protrusion 9, the worker walking on the top side of the top board 3 first steps on the button-like protrusion 11 and then the line. You can step on the protrusion 9 and know that you are approaching the wife by stepping on the button-shaped protrusion 11 first, and you can prevent it from hitting you when you step on the protrusion 9 Can be secured.

  Further, when walking on the top plate 3 and reaching the end portion along the longitudinal direction of the top plate 3, the belt-like protruding portion 8 formed here is stepped on, and the longitudinal direction of the top plate 3 is sensed by a sole sense. Know that you are at the edge. In this case, since the belt-like projecting portion 8 has a predetermined width, the presence of the belt-like protruding portion 8 can be sufficiently recognized by the soles even while wearing shoes, and the belt-like projecting portion 8 is formed over the entire length in the longitudinal direction of the top plate 3. Even if you put your foot on it, it can be detected.

  And since the side surface of the belt-like protruding portion 8 is formed on the inclined surface 8a, even if the toe hits the belt-like protruding portion 8, the contact point is the inclined surface 8a. Accordingly, the tip of the toe can be shifted to the top of the belt-like protruding portion 8, and tripping can be prevented.

  In addition, when the strip-shaped protruding plate 13 is attached to the end of the top plate 3 on the main leg 4 side with screws 15, when the work is performed on the top plate 3 and approaches the end of the wife side, the strip-shaped protruding plate At the same time as stepping on the button-like protrusion 12 protruding above 13, the sloped surface and the top of the mountain-shaped main body 13a are stepped on, so that the protrusion and inclination of the protrusion 12 and the top are sensed by the sole of the foot. Accordingly, it is known that the user has approached the end of the top plate 3 on the side of the top plate 3 as if he / she did not look directly at his / her feet.

It is a top view of the top plate which is the principal part which shows embodiment of the portable worktable of this invention. It is a perspective view which shows embodiment of the portable worktable of this invention. It is a side view of the top plate which is the principal part which shows embodiment of the portable worktable of this invention. It is a vertical front view of a part of a top plate which is a main part showing an embodiment of the portable work table of the present invention. It is a perspective view by the side of the top-plate wife which is the principal part which shows embodiment of the portable worktable of this invention. It is a top view of the strip | belt-shaped protrusion plate which is the principal part which shows embodiment of the portable worktable of this invention. It is a vertical side view of the attachment state of the strip | belt-shaped protrusion plate which is the principal part which shows embodiment of the portable worktable of this invention. It is a perspective view of the conventional portable worktable.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Portable work table 2 ... Anti-slip hole 3 ... Top plate 4 ... Main leg 5 ... Stepping bar 6 ... Cue member 7 ... Stay 8 ... Strip-like protrusion 8a ... Inclined surface 9 ... Linear protrusion 10 ... Scaffold board cover DESCRIPTION OF SYMBOLS 11 ... Button-shaped protrusion 12 ... Protrusion 13 ... Band-shaped protrusion 13a ... Main body 14 ... Screw hole 15 ... Screw 21 ... Handrail

Claims (1)

In a portable work table with a top plate spanned between a pair of main legs, a top surface is formed in a trapezoidal shape as a shape that can be sensed by the sole in the vicinity of the end of the top side of the top plate, and the height is about 3 to 10 mm. A plurality of button-shaped protrusions having a trapezoidal shape with a diameter of about 10 to 30 mm as a whole are formed of a cap and a leg as a separate body from the top plate, and are non-slip formed on the top plate Removably inserted into the hole , provided at appropriate intervals, and provided with a strip-like protrusion having a width that can be sensed by the sole over the entire length along the longitudinal direction of the top plate as a step-off preventing member, A linear protrusion formed by a bent portion obtained by bending the upper end edge of a substantially square U-shaped scaffolding plate cover attached over the entire length at a right angle upward at a width direction end portion is provided as a step-off preventing member. Portable workbench.

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