JP2010069562A - Foldaway portable workbench - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldaway portable workbench for preventing a debris from scattering during use of a portable tool. <P>SOLUTION: The foldaway portable workbench includes a base plate 21 on which the portable tool to be used is mounted, cover plates 31, 41 and 41 pivoted to the base plate 21 so that it can rise/fall on the plate 21 for receiving the debris to prevent it from scattering in a standing posture, and a handle 51 provided to be rotatable around a rotation shaft 52 at a rim 21c of the base plate 21. The handle 51 includes a grip 51a to be held when carried and a cover plate lock 51c integrally provided at an opposite position to the grip 51a across the rotation shaft 52. The lock 51c is positioned outward from the rim 21c of the base plate 21. While the foldaway portable workbench 11 is carried, the lock 51c protrudes inward from the rim 21c as the handle 51 in conjunction with turning around the rotation shaft 52, whereby the lock 51c restrains motion of the cover plates 31, 41 and 41 laid on the base plate 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a foldable portable workbench that prevents scattering of sparks and cutting waste generated from a tool when a portable tool such as a high-speed cutter or a grinder is used.

  Conventionally, when cutting work such as piping materials and soft iron materials while changing the work place during construction, portable tools such as handy type high speed cutters and grinders are brought into the site, but at the time of use, Sparks, cutting waste, etc. are generated and scattered around.

Therefore, a handy type folding portable workbench is usually used for scattering curing. The portable work table includes a substrate on which a portable tool to be used is placed, and a cover plate that is pivotally attached to the substrate so as to be able to lie down and receives the scattered matter in a standing posture to prevent scattering. I have. Then, after using the portable tool, the cover plate is folded over on the substrate and the portable work table is flattened, and then the handle portion provided on the substrate is held and suspended to carry (Patent Document) 1).
JP 2000-126927 A

  However, the above-described portable workbench does not have a lock mechanism for locking in the folded state, and there is a risk that the cover plate may stand up with respect to the substrate during carrying. Even if a locking mechanism is provided, if the locking operation is forgotten before carrying, the locking mechanism will not make sense.

  The present invention has been made in view of such a conventional problem, and when carrying a foldable portable worktable with a cover plate lying down on a substrate, the portable worktable is securely locked in the folded state. It is an object of the present invention to provide a foldable portable work table that can be used.

In order to achieve this object, a foldable portable workbench according to claim 1 comprises:
A folding portable workbench that prevents scattering of scattered objects when using portable tools,
A substrate on which the portable tool to be used is placed;
A cover plate pivotally attached to the substrate so as to be able to lie down with respect to the substrate, and receiving the scattered matter in an upright posture to prevent scattering;
A handle portion provided at the edge of the substrate so as to be rotatable around a rotation axis;
The handle portion includes a grip portion that is gripped when carrying the foldable portable workbench, and a cover plate locking portion that is integrally provided at a position opposite to the grip portion with the rotating shaft interposed therebetween. Have
When using the portable tool, the locking portion is located outward from the edge of the substrate,
When carrying the foldable portable workbench, the locking portion protrudes inward from the edge portion in accordance with the turning operation of the handle portion around the rotation axis, whereby the locking portion is The movement of the cover plate in a state of being laid down on the substrate is constrained.

  According to the first aspect of the present invention, when carrying the portable work table, the handle portion is pivoted to grip the grip portion of the handle portion. The portion protrudes inward from the edge of the substrate, and the movement of the cover plate in a state of being concealed on the substrate is restricted by the protruding engaging portion. Thereby, when the portable worktable is carried, the folded state of the portable worktable is surely locked.

The invention shown in claim 2 is the folding portable workbench according to claim 1,
The cover plate includes a front cover plate pivotally attached to a front edge portion of the substrate, and a pair of side cover plates pivotally attached to a pair of side edge portions extending from both ends of the front edge portion. ,
The handle portion is provided on the side edge portion while keeping the rotating shaft along the side edge portion,
When the pair of side cover plates are turned down on the substrate and the front cover plate is turned down, the locking portion raises the front cover plate by the turning operation of the handle portion. It is characterized by being restrained impossible.

  According to the second aspect of the present invention, in the folded state in which the pair of side cover plates and the front cover plate are laid down on the substrate, the locking portion restrains the front cover plate so that it cannot stand up. The folded state of the portable workbench is securely locked.

The invention shown in claim 3 is the folding portable workbench according to claim 1 or 2,
The edge of the substrate has a wall portion standing up in the normal direction of the plate surface of the substrate,
The handle portion pivots around the rotation axis provided at the upper end portion of the outer wall surface of the wall portion, so that the handle portion lies on the outer wall surface and stands up from the outer wall surface. It is possible to transition to either state of
In the state where the handle portion lies on the outer wall surface, the locking portion is positioned outward from the edge of the substrate, while in the state where the handle portion stands up from the outer wall surface, the locking portion is Located inward from the edge of the substrate,
When the substrate is placed on an intended horizontal plane to use the portable tool, the grip portion is positioned below the rotating shaft by the weight of the grip portion of the handle portion. By turning, the handle is in a state of lying on the outer wall surface,
When the substrate is suspended below the handle to carry the foldable portable workbench, the handle is swung so that the handle rises from the outer wall surface. Features.

  According to the third aspect of the present invention, when the foldable portable workbench is carried, the folding state is automatically locked by the turning operation of the handle, while the foldable portable workbench is used to use the portable tool. When the base is placed on the horizontal plane, the lock is automatically released by the turning operation of the handle.

  According to the foldable portable worktable of the present invention, when carrying the foldable portable worktable with the cover plate lying on the board, the portable worktable can be reliably locked in the folded state. Become.

=== Folding portable work table 11 of this embodiment ===
1A to 2C are perspective views of the foldable portable work table 11. 1A to 1C show the usage state of the foldable portable work table 11, and FIGS. 2A to 2C show a process of folding the foldable portable work table 11 after use. In the following description, as shown in FIG. 1A, the three directions orthogonal to each other are referred to as the vertical direction (height direction), the horizontal direction (width direction), and the front-rear direction (longitudinal direction), respectively.

  As shown in FIGS. 1A to 2C, the foldable portable work table 11 includes a substrate 21 having a rectangular shape in plan view in which the mounting surface of the portable tool 1 is set on a plate surface 21 a, and a front edge portion of the substrate 21. A pair of front cover plates 31 provided so as to be able to lie down on the substrate 21 by hinges 24b of 21b and hinges 24c, 24c on the left and right side edges 21c, 21c of the substrate 21 so as to be able to lie down on the substrate 21. Side cover plates 41, 41 and a handle 51 provided on the right side edge 21 c of the substrate 21 are provided.

When the portable tool 1 is used, as shown in FIG. 1A, the substrate 21 is placed on the horizontal ground G, and the front cover plate 31 and the left and right side cover plates 41, 41 are respectively moved from the substrate 21. After being raised and fixed in the standing posture, the portable tool 1 is placed on the plate surface 21a of the substrate 21 and used as shown in FIGS. 1B and 1C. On the other hand, when the portable work table 11 is carried, as shown in FIG. 2A, the left and right side cover plates 41, 41 are turned down on the plate surface 21a of the substrate 21, and further from above, as shown in FIG. 2B. Then, the front cover plate 31 is turned down to bring the portable work table 11 into a flat folded state, and then the handle 51 is held and carried as shown in FIG. 2C.
Hereinafter, each component 21, 31, 41, 51 of the portable workbench 11 will be described.

<<< Substrate 21 >>>
3A to 3C are a plan view, a front view, and a side view, respectively, of the portable workbench 11 in use. The substrate 21 has a rectangular steel plate having a predetermined width long in the front-rear direction as a main body. The four front and rear edges 21b, 21c, 21c, and 21d have reinforcing walls 22b, 22c, 22c, and 22d that stand up in the normal direction of the plate surface 21a of the substrate 21, respectively. The external appearance is an open box with a shallow depth.

<<< Front cover plate 31 >>>
The front cover plate 31 is a rectangular steel plate having a planar size that is slightly narrower than the substrate 21 and shorter in the front-rear direction. The front side of the front cover plate 31 is connected to the substrate 21 via a hinge 24b provided on the inner surface of the reinforcing wall portion 22b of the front edge portion 21b of the substrate 21, whereby the front cover plate 31 is Further, it is pivotally mounted so as to be able to lie down in the front-rear direction over a range from a state in which it substantially contacts the plate surface 21a of the substrate 21 to a sandwich angle θ1 with the plate surface 21a of about 90 ° (see FIG. 3C). reference). In addition, since it is formed in the above-mentioned plane size, as shown in FIG. 2B, the front cover plate 31 has a reinforcing wall portion 22b on the plate surface 21a in a folded state where the plate 21 is folded down on the plate surface 21a. , 22c, 22c, and 22d. As shown in FIG. 2A, reinforcing wall portions 32 c and 32 c erected in the normal direction of the plate surface 31 a of the front cover plate 31 are integrally formed on the left and right sides of the front cover plate 31.

<<< Side Cover Plate 41 >>>
As shown in FIGS. 3A to 3C, the left and right side cover plates 41, 41 are substantially trapezoidal steel plates. Then, the side corresponding to the lower base of the substantially trapezoidal shape is connected to the substrate 21 via the hinges 24c and 24c of the left and right side edge portions 21c and 21c of the substrate 21, whereby each side cover plate 41, 41 is pivotally attached in such a manner that it can be raised and lowered in the left-right direction over a range from a state in which it substantially contacts the plate surface 21a of the substrate 21 to a sandwiching angle θ2 of about 90 ° with the plate surface 21a (FIG. See 3B).

  In addition, since the height of the substantially trapezoidal shape of the side cover plate 41 is set slightly smaller than the width dimension of the substrate 21, in a folded state where the side cover plate 41 is bent on the plate surface 21 a of the substrate 21 as shown in FIG. The side cover plate 41 is accommodated in a range inside the reinforcing wall portions 22c and 22c on the plate surface 21a.

  Further, as shown in FIG. 3C, the front side 41 b of the pair of sides connecting the upper bottom and the lower bottom of the side cover plate 41 has a front of the same standing posture in the standing posture of the side cover plate 41. The cover plate 31 is leaned, thereby supporting the front cover plate 31 in an upright state. In this supported state, the included angle θ1 between the front cover plate 31 and the plate surface 21a of the substrate 21 is, for example, an acute angle of 57 °, so that it is scattered forward from the portable tool 1 in use as shown in FIG. 1B. The front cover plate 31 can reliably receive scattered objects such as sparks.

  In order to fix this supporting state, as shown in FIGS. 3A to 3C, a pin member 45 extending forward is welded and fixed to the inner surface in the width direction of the side cover plate 41, and A through hole 35 through which the pin member 45 is inserted in the support state is formed in the left and right end portions of the front cover plate 31 corresponding to the pin member 45. Therefore, when the pin member 45 is inserted into the through hole 35, the front cover plate 31 is fixed in the standing state by the side cover plate 41 in the standing posture.

<<< Handle 51 >>>
4A to 4C are enlarged views of the handle 51 in a state where the substrate 21 of the portable workbench 11 is placed on the horizontal ground G. FIG. 4A shows a plan view, FIG. 4B shows a side view, and FIG. 4C shows a cross-sectional view taken along the line CC in FIG. 4B.

  As shown in FIG. 4B, the handle 51 includes a member formed by bending a rod such as round steel in a substantially U shape. That is, the handle portion 51 includes a rod-shaped grip portion 51a to be gripped by an operator's hand during carrying, and a pair of rod-shaped arm portions 51b and 51b extending substantially vertically from both ends of the grip portion 51a. A pair of arm portions 51b and 51b are fixedly welded and fixed with a rod 52 such as round steel as a rotary shaft 52 in parallel with the gripping portion 51a while being spaced apart from each other. Is inserted into an appropriate inner peripheral side of the pipe material 53 and is rotatable relative to the pipe material 53.

  Therefore, as shown in FIG. 4C, the mounting plate member 54 welded and fixed to the outer peripheral surface of the pipe member 53 is the upper end portion of the outer wall surface of the reinforcing wall portion 22c of the right side edge portion 21c of the substrate 21. 4A and 4B, the handle 51 can turn around the rotation axis 52 with respect to the substrate 21 while aligning the axial direction of the rotation axis 52 in the front-rear direction. It is attached.

  FIG. 4D shows an explanatory diagram of the turning operation of the handle portion 51. 4D is a cross-sectional view taken along the line CC in FIG. 4B, which is the same as FIG. 4C. As shown in FIG. 4C, in the state where the substrate 21 is placed on the horizontal ground G, the handle portion 51 is in a state where the grip portion 51 a is suspended below the rotary shaft 52 by the weight of the grip portion 51 a. As a result, the handle portion 51 is generally lying on the outer wall surface of the reinforcing wall portion 22 c of the substrate 21. However, when the grip 51a is gripped by the operator's hand and the portable work table 11 is carried by the handle 51, as shown in FIG. 51 turns about 90 ° around the rotation shaft 52 and stands up substantially vertically from the outer wall surface of the reinforcing wall portion 22c. Then, after the portable workbench 11 as a whole is raised by the operator's hand that lifts the handle 51 in the standing posture further upward, the portable workbench 11 is suspended from the handle 51 as shown in FIG. Carried around.

  Such a handle portion 51 also functions as a lock mechanism for holding the front cover plate 31 and the side cover plates 41, 41 in a folded state while being folded on the substrate 21. Specifically, as shown in FIGS. 4B and 4C, the pair of arm portions 51 b and 51 b related to the handle portion 51 respectively extend to positions opposite to the gripping portion 51 a with the rotation shaft 52 interposed therebetween. That is, the tip 51c (corresponding to the cover locking portion) of the arm 51b is located on the opposite side of the grip 51a with the rotating shaft 52 interposed therebetween.

  Therefore, as shown in FIG. 4C, in the state where the substrate 21 is placed on the horizontal ground G (corresponding to a horizontal plane) and the handle portion 51 is substantially lying on the outer wall surface of the reinforcing wall portion 22c of the substrate 21, The distal end 51c of the arm 51b faces upward and is positioned outward in the width direction with respect to the side edge 21c of the substrate 21, but the gripper 51a is gripped by the operator's hand and portable work is performed. When the table 11 is carried, as shown in FIG. 4D, the tip 51c of the arm 51b rises from the side edge of the substrate 21 as the handle 51 rises from the outer wall of the reinforcing wall 22c. It protrudes inward in the width direction from the portion 21c. Then, the front cover plate 31 and the side cover plates 41 and 41 on the substrate 21 are restrained from moving upright by the tip 51c, whereby the folded state of the portable workbench 11 is automatically locked. . Incidentally, this locked state is maintained if the handle portion 51 stands up from the outer wall surface of the reinforcing wall portion 22c as shown in FIG. 4D. Therefore, as shown in FIG. The locked state is maintained while the mobile phone is suspended and carried.

  When the portable workbench 11 is carried to the intended work place, the substrate 21 is placed on the horizontal ground G as shown in FIG. 4C. At this time, the handle 51 is rotated by the own weight of the grip 51a. By turning around 52, the grip 51a is suspended below the rotary shaft 52. As a result, the tip 51c of the arm 51b faces upward, that is, the tip 51c is positioned outward in the width direction with respect to the side edge 21c of the substrate 21. The locked state that restricts the movement of the upper front cover plate 31 and the side cover plates 41, 41 is automatically released.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The deformation | transformation as shown below is possible in the range which does not deviate from the summary.
In the above-described embodiment, the configuration including the front cover plate 31 and the left and right side cover plates 41 and 41 is illustrated as the cover plate. However, the present invention is not limited to this. For example, the front cover plate 31 and the left and right side cover plates 41 and 41 are provided. It suffices if at least one of the side cover plates 41, 41 is provided, and a cover plate may be additionally provided for the configuration including these three cover plates 31, 41, 41. good.

1A to 1C are perspective views showing the usage state of the portable work table 11. 2A to 2C are perspective views illustrating a process of folding the portable workbench 11. 3A, 3B, and 3C are a plan view, a front view, and a side view, respectively, of the portable workbench 11 in use. 4A to 4C are enlarged views of the handle portion 51 in a state where the substrate 21 of the portable workbench 11 is placed on the horizontal ground G, and FIG. 4D is an explanatory view of the turning operation of the handle portion 51. It is a figure which shows a mode that the portable work table 11 is suspended by the handle part 51 and carried.

Explanation of symbols

1 portable tool, 11 folding portable workbench,
21 substrate, 21a plate surface,
21b front edge (edge), 21c side edge (edge), 21d edge,
22b Reinforcing wall (wall), 22c Reinforcing wall (wall),
22d Reinforcing wall (wall),
24b hinge, 24c hinge,
31 front cover plate, 31a plate surface,
32c reinforcing wall,
35 through holes,
41 side cover plate, 41b side,
45 pin member,
51 handle part, 51a grip part, 51b arm part,
51c tip (cover locking portion),
52 rotating shaft, 53 pipe material,
G Horizontal ground (horizontal plane)

Claims (3)

A folding portable workbench that prevents scattering of scattered objects when using portable tools,
A substrate on which the portable tool to be used is placed;
A cover plate pivotally attached to the substrate so as to be able to lie down with respect to the substrate, and receiving the scattered matter in an upright posture to prevent scattering;
A handle portion provided at the edge of the substrate so as to be rotatable around a rotation axis;
The handle portion includes a grip portion that is gripped when carrying the foldable portable workbench, and a cover plate locking portion that is integrally provided at a position opposite to the grip portion with the rotating shaft interposed therebetween. Have
When using the portable tool, the locking portion is located outward from the edge of the substrate,
When carrying the foldable portable workbench, the locking portion protrudes inward from the edge portion in accordance with the turning operation of the handle portion around the rotation axis, whereby the locking portion is A foldable portable work table characterized by restraining the movement of the cover plate in a state of being laid down on a substrate. The folding portable workbench according to claim 1,
The cover plate includes a front cover plate pivotally attached to a front edge portion of the substrate, and a pair of side cover plates pivotally attached to a pair of side edge portions extending from both ends of the front edge portion. ,
The handle portion is provided on the side edge portion while keeping the rotating shaft along the side edge portion,
When the pair of side cover plates are turned down on the substrate and the front cover plate is turned down, the locking portion raises the front cover plate by the turning operation of the handle portion. A foldable portable workbench characterized by being restrained. The folding portable workbench according to claim 1 or 2,
The edge of the substrate has a wall portion standing up in the normal direction of the plate surface of the substrate,
The handle portion pivots around the rotation axis provided at the upper end portion of the outer wall surface of the wall portion, so that the handle portion lies on the outer wall surface and stands up from the outer wall surface. It is possible to transition to either state of
In the state where the handle portion lies on the outer wall surface, the locking portion is positioned outward from the edge of the substrate, while in the state where the handle portion stands up from the outer wall surface, the locking portion is Located inward from the edge of the substrate,
When the substrate is placed on an intended horizontal plane to use the portable tool, the grip portion is positioned below the rotating shaft by the weight of the grip portion of the handle portion. By turning, the handle is in a state of lying on the outer wall surface,
When the substrate is suspended below the handle to carry the foldable portable workbench, the handle is swung so that the handle rises from the outer wall surface. A foldable portable worktable.

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