JP3646136B2 - Portable worktable - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a portable work table used in construction work sites, interior / exterior work such as ceilings and walls of buildings, and electrical wiring work. More specifically, a ladder-shaped main leg can be folded on a rectangular top plate. It relates to the improvement of the portable workbench provided in.
[0002]
[Prior art]
Conventionally, for work such as a ceiling or a wall of a building or the like, as shown in FIG. 17, a work table (scaffold) provided with ladder-shaped main legs 4 and 4 each having a step 5 on a rectangular top plate 3. 2 is used. (Japanese Utility Model Publication No. 6-56321)
[0003]
The work table 2 is usually portable, and after use, the work table 2 can be folded and moved by folding the stay 7 attached between the top plate 3 and the step 5 at the bent portion 8. ing.
[0004]
This type of workbench is applied to a work floor with a height of less than 2m from the viewpoint of safety, and safety measures such as anti-slip are taken on the top plate that is the work floor. When working with a hand on the ceiling or wall surface, it often lacks stability and often causes a fall accident.
[0005]
In order to solve this problem, as shown in FIG. 18, in a portable work table 2 in which ladder-shaped main legs 4, 4 are foldably provided on the top board 3, the top board 3 or the main legs 4 are arranged above the top board 3. A portable work table 1 is proposed in which a handle member 6 that functions as a handle for raising and lowering is rotated in the A direction or the B direction so as to be foldable along the main leg 4 or the top plate 2. (Patent Nos. 2989166 and 2989172)
[0006]
However, even when using a workbench equipped with such a handle member, it is easy for the feet to be inadvertent, especially in work that is concentrated on the interior, exterior work, electrical wiring work, etc. There have been many accidents in which a foot is removed from the long side or short side of a rectangular top plate, and a work platform with higher safety is required.
[0007]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described conventional problems in a workbench in which a ladder-like main leg is foldably provided on a top plate. The object of the present invention is, for example, a length of 1,300 to A portable work table with a vertical top plate size of 1,800 mm and a width of about 250 to 500 mm and a height of about 2 m or less can be used without changing the structure of the conventional portable work table. It is an object of the present invention to provide a portable work table that greatly improves the safety of work when the work is carried on the machine.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a portable work bench according to claim 1 of the present invention is provided with a ladder-shaped main leg that can be folded on a rectangular top plate, and a handle member can be folded on the top plate or the main leg. In the mounted portable work table, a fixing member that contacts the lower surface portion of the top plate and a plate member that contacts the upper surface of the top plate are provided below the vertical rail of the handrail, the plate member and the fixing member, The handrail is attached to the long side of the top plate by pinching the long side end portion of the top plate by inserting a pin from the plate-like member into the top plate .
[0009]
The portable worktable according to claim 2 is a portable worktable in which a ladder-shaped main leg is foldably provided on a rectangular top plate, and a handle member is foldably attached to the top plate or the main leg. At the bottom of the crosspiece, a vertical part that abuts the long side wall of the top plate and a rising part that extends from the vertical part and fits into a groove formed by the long side intermediate wall of the top plate that is located inward of the long side wall And a plate-like member that comes into contact with the top surface of the top plate. The plate-like member and the fixing member sandwich the long side end of the top plate. A handrail is attached to the long side of the top plate by connecting the top plate with a pin.
[0010]
According to a third aspect of the present invention, the portable work platform according to the first or second aspect is characterized in that an detachable end scaffold is continuously provided on the short side of the top plate.
[0011]
According to a fourth aspect of the present invention, there is provided a portable worktable according to the first or second aspect , wherein a plurality of the portable worktables are arranged so that the short sides of the rectangular top plate are opposed to each other, and an intermediate between the short sides of the opposed top plates is provided. The working table is connected in the longitudinal direction through a scaffold.
[0012]
According to a fifth aspect of the present invention, there is provided a portable worktable according to the first or second aspect in which a plurality of rectangular worktops are arranged so that the long sides of the rectangular top plate face each other, and an intermediate between the long sides of the facing top boards is provided. The working table is connected in the width direction through a scaffold.
[0013]
In the worktable of the present invention, members such as the top plate, the main leg, the handle member, the handrail, the end scaffold, and the intermediate scaffold can be made of lightweight steel, FRP, or other materials, depending on the mode of use. In view of lightness, corrosion resistance, handleability, and the like, it is most preferable to use an aluminum extruded shape (including an alloy) or a combination of an aluminum extruded shape and an aluminum plate.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the portable worktable of the present invention will be described below. The same code | symbol was attached | subjected to the same member as the past, and a common member. In addition, these embodiment shows an Example of this invention, and this invention is not limited to these.
[0015]
As shown in FIG. 1, the first mode of attachment of the handrail according to the present invention is such that a ladder-shaped main leg 4, 4 is foldably provided on a rectangular top plate 3, and the top plate 3 or the main leg 4 is hung. In the portable work table 1 to which the member 6 is foldably attached, a detachable handrail 11 is provided on the long side 9 of the rectangular top plate 3. 5 is a step of the ladder-shaped main leg 4, 7 is a stay 7 attached between the top plate 3 and the step 5, and the work table 1 can be folded and moved by folding the stay 7 at the bent portion. It has become. In this case, the handle member 6 is preferably attached to the corner portion of the top plate 3 or the upper portion of the main leg 4.
[0016]
As shown in FIG. 1, the handrail 11 can be provided to face both the long sides 9 of the top plate 3. However, when performing work on the wall surface, one long side of the top plate 3 is placed on the wall surface. In the case where the handrail 10 is used close to the wall, the handrail 10 may be provided only on the long side opposite to the long side contacting the wall surface, and it is selected depending on the use mode of the work table. The
[0017]
As shown in FIG. 2, the handrail 11 is fixed to the long side 9 side of the top plate 3 by providing a fixing member 13 at a lower portion of the vertical rail 11 </ b> B extending from the horizontal rail 11 </ b> A of the handrail 11. For example, the vertical portion 13A of the fixing member 13 is fixed to the lower portion of the vertical beam 11B by a suitable means such as a bolt and a nut (not shown), and the rising portion 13B extending from the vertical portion 13 of the fixing member 13 is indicated by a one-dot chain line. As shown, it is brought into contact with the lower surface portion of the top plate 3, and a plate member 14 made of L-shaped metal fittings is fixed to the vertical rail 11B of the handrail 11 and the top plate 3 by means such as bolts and nuts, The handrail 11 is detachably attached to the long side 9 side of the top plate 3.
[0018]
The other fixing method to the long side 9 side of the top plate 3 of the handrail 11 is shown in FIGS. As shown in FIGS. 3 and 6, a long side wall 9 </ b> A and a long side intermediate wall 9 </ b> B positioned inward from the long side wall 9 </ b> A are provided on the long side 9 side of the top plate 3. As shown in FIGS. 3 to 5, a vertical portion 13 </ b> C contacting the long side wall 9 </ b> A of the top plate 3, and a long side intermediate wall extending from the vertical portion 13 </ b> C, below the vertical rail 11 </ b> B of the handrail 11. A plate-like member such as an L-shaped bracket that is provided by attaching a fixing member 13 having a rising portion 13D that fits into a groove portion 15 formed by 9B with, for example, a bolt, a nut, or a rivet, and that abuts the upper surface of the top plate 14 is attached by bolts / nuts or rivets, for example, and as shown in FIG. 3, the plate member 14 and the fixing member 13 sandwich the long side end of the top plate 3, and the plate member 14 The hole H drilled in the top plate 3 is aligned, and a pin P is inserted into the hole H, whereby the handrail 11 is attached to the long side 9 side of the top plate 3.
[0019]
As shown in FIGS. 3 to 4, the pin P is conveniently attached to the vertical rail 11 </ b> B of the handrail 11 by an appropriate means such as a wire. The handrail 11 can be removed by removing the pin P. In this fixing method, the handrail 11 is freely installed at any position on the long side 9 side of the top plate 3 by forming the long side intermediate wall 9B continuously in the longitudinal direction of the top plate 3. It becomes possible. Further, when the handrail 11 is attached by this fixing method, when an operator is placed on the top plate 3, the vertical rail 11 </ b> B of the handrail 11 acts to inwardly tilt due to the load applied to the top plate 3, and the handrail 11 is detached. It has the function which can prevent.
[0020]
Moreover, the attachment to the long side 9 side of the top plate 3 can also be performed by a system as shown in FIG. In the mounting method of FIG. 7, the pin P is mounted so as to protrude above the top plate 3 by the action of the spring 32, and when installing the handrail 11, the plate-like member 14 is against the action of the spring 32. When the pin P is pushed downward and inserted into the top surface of the top plate 3, the pin P returns upward and the plate-like member 14 is fixed when the hole H of the top plate 3 reaches the position of the pin P.
[0021]
In the present invention, as a second embodiment, in the portable worktable 1 to which the handle member is foldably attached, a detachable handrail 12 can be provided on the short side 10 side of the rectangular top plate 3. Further, as a third embodiment, handrails can be provided on both the long side 9 side and the short side 10 side of the top plate 3.
[0022]
An example of a method of fixing the handrail 12 to the top side 3 of the top plate 3 is shown in FIG. In FIG. 8, fixing members 16 and 16 are fixed to the lower part of the vertical rail 12B of the handrail 12, and a pair of top plate clamping members 17 and 17 are provided in the middle part, as shown by dotted lines in FIG. The bent portions 18 and 18 of the fixing members 16 and 16 are fitted to the pair of vertical members of the main leg 4 and the top plate holding members 17 and 17 hold the short side 10 side of the top plate 3 to hold the top plate. The handrail 12 is attached by fixing the top plate clamping member 17 to the top plate 3 by appropriate means such as bolts, nuts and pins through the holes 17 formed in the member 17 and the top plate 3. Further, the handrail 12 can be removed by releasing the fixation between the top plate 3 and the top plate holding member 17.
[0023]
In the present invention, as shown in FIG. 9, by connecting an end scaffold 19 to the short side 10 side of the top plate 3, for example, in a wall surface work in which the longitudinal direction of the work table is opposed to the wall surface, A gap between the table and the wall surface can be eliminated, and a fall accident during work at the (longitudinal) end of the work table 1 can be prevented. Further, the work area in the longitudinal direction of the scaffolding can be easily increased, and the work area can be expanded.
[0024]
As an embodiment of the present invention, as shown in FIG. 9, the end scaffold 19 can be provided continuously and a handrail can be provided. In FIG. 9, the handrail 11 is provided on both long sides of the top board 3, but the handrail 11 may be provided only on one long side depending on the usage. Further, the handrail 12 can be attached only to the short side of the top plate 3, and the handrail 12 can be provided on the long side and the short side of the top plate 3.
[0025]
For example, as shown in FIG. 10, the end scaffold 19 is provided with leg portions 22 and 22 having end scaffold fixing members 20 attached to the end scaffold 19, and the groove portions 21 of the end scaffold fixing members 20 are formed on the work platform. While fitting to the step 5 of the main leg, the end portion of the end scaffold 19 is superposed on the short piece 10 of the top plate 3 so as to be at the same level as the top plate 3, and an appropriate bolt / nut or the like is provided through the hole H. It fixes to the top plate 3 with a means. In addition, it is convenient to fix the end scaffold 19 to the top plate 3 by inserting the pin P attached to the end scaffold 19 by an appropriate means such as a wire through the hole H.
[0026]
In the present invention, as shown in FIG. 11 and FIG. 12, an intermediate scaffold 23 is interposed between the work tables 1 and connected in the longitudinal direction or the width direction, and the work surface is expanded and used in the length direction or the width direction. can do. When the workbench 1 is used by connecting it in the longitudinal direction with the intermediate scaffold 23 interposed therebetween, the handrails 11 and 11 on the long side 9 side of the top plates 3 and 3 are connected by the connecting member 24 as shown in FIG. By connecting the handrail to the long side of the top plate, it is possible to perform a wide range of wall work during interior / exterior construction while ensuring safety.
[0027]
As shown in FIG. 12, when the work table 1 is used by being connected in the width direction with the intermediate scaffold 23 interposed, the handrails 11, 11 on the long sides of the top plates 3, 3 are connected to the connecting member 24, If tied at 24, the short side of the top plate is also surrounded, and the connecting members 25 and 25 serve as a handrail, and it is possible to ensure safety in all directions on a wide work surface. The attachment of the handrail in these embodiments is not limited to that illustrated in FIGS. 11 and 12, and the attachment to the long side of the top plate and the attachment to the short side are appropriately performed according to the usage mode of the scaffolding base. Selection and combination can be implemented.
[0028]
Furthermore, in the present invention, as shown in FIG. 13, the work table 1 may be connected in the longitudinal direction and the width direction through a number of intermediate scaffolds 23, for example, the long side of the top plate 3 and Handrails 11 and 12 are attached to the short sides, respectively, and handrails 11 and 12 are connected by connecting members 24 and 25, respectively, to form a continuous handrail. In FIG. 13, the handle member 6 is omitted.
[0029]
As shown in FIG. 11, the work table 1 is connected in the longitudinal direction by arranging a plurality of work tables 1 and 1 so that the short sides of the rectangular top plates 3 and 3 face each other. An intermediate scaffold 23 is arranged between the short sides, and the work table 1 is connected in the width direction as shown in FIG. 12 by connecting the work tables 1 and 1 to the long sides of the rectangular top plates 3 and 3. It arrange | positions so that it may oppose, and the intermediate | middle scaffold 23 is arrange | positioned between the long sides of the opposing top plate.
[0030]
In the embodiment in which the intermediate scaffold 23 is attached to the top plate 3 of the work table 1, as shown in FIG. 14, the attachment member 26 is fixed to the end edge of the intermediate scaffold 23 by fixing means F such as bolts, nuts and rivets. Then, the top plate 3 and the mounting member 26 are overlapped, a hole H corresponding to the overlapped portion is formed, and the pin 27 is inserted into the hole H.
[0031]
As shown in FIG. 15, the pin 27 includes a head portion 28 having a notch 30 in a part, an insertion portion 29, and an intermediate portion 31 having a smaller diameter than the head portion 28, and can be easily inserted into the hole H. At the same time, it can be easily pulled out by, for example, inserting a driver's tip into the notch 30 and lifting it, which helps to improve the workability when folding and moving the work table.
[0032]
The pin 27 is coupled to the plate-like member 14 and the top plate 3 in fixing between the handrail 11 shown in FIGS. 2 and 3 and the long side 9 side of the top plate 3, and is short between the handrail 12 and the top plate 3 shown in FIG. 8. The top plate holding members 17 and 17 and the top plate 3 can be connected to the side 10 side, and the end scaffold 19 can be connected to the top plate 3 shown in FIG. it can.
[0033]
As another embodiment when attaching the intermediate scaffold 23 to the top plate 3 of the work table 1, as shown in FIG. 16, a short pin member 33B is provided at one end edge of the intermediate scaffold 23, and the lower part is provided at the lower part. A mounting member 26B having an inclined surface 34 formed in an outwardly open shape is fixed by a fixing means such as a bolt, a nut, and a rivet, and the intermediate platform 23 is slightly inclined so that the top plate 3 extends along the inclined surface 34. The intermediate scaffold 23 is attached to the top plate 3 by inserting the pin member 33B into the hole H of the top plate 3. Further, at the other end edge of the intermediate scaffold 23, the attachment member 26A provided with the long pin member 33A is fixed, and when the top plate 3 and the attachment member 26A are overlapped, the pin member 33A is inserted into the hole of the top plate 3. The intermediate scaffold 23 is attached by inserting it into H.
[0034]
【Example】
Examples of the present invention will be described below.
Example 1
FIG. 18 shows a top plate (dimensions: length 1500 mm, width 500 mm) in which aluminum extruded profiles (materials: A6063S and A6N01S) are combined, ladder-shaped main legs and handle members made of A6N01S extruded profiles. A worktable having a maximum height of 1750 mm and a main leg expansion / contraction width of 400 mm was assembled.
[0035]
An intermediate scaffold (dimensions: length 1500 mm, width 500 mm) formed by combining aluminum extruded profiles (materials: A6063S and A6N01S) is provided on this work table, and the work tables are connected by the method shown in FIG. A work table as shown in FIG. 11 was formed.
[0036]
Next, as shown in FIG. 11, a handrail made of an aluminum alloy extruded shape (material: A6063P) is applied to one long side of the top plates 3, 3 of the worktables 1, 1 according to the method of FIGS. The workbench was completed by connecting and connecting the handrails with a connecting member 24 made of the same material as the handrails.
[0037]
When this work bench was actually used for wall work at the interior construction site, it was confirmed that the safety of the back was ensured by the presence of the handrail, the work could be done extremely safely, and the workability was also improved. It was.
[0038]
Example 2
FIG. 18 shows a top plate (dimensions: length 1500 mm, width 500 mm) in which aluminum extruded profiles (materials: A6063S and A6N01S) are combined, ladder-shaped main legs and handle members made of A6N01S extruded profiles. A worktable having a maximum height of 1750 mm and a main leg expansion / contraction width of 400 mm was assembled.
[0039]
An intermediate scaffold (dimensions: length 1500 mm, width 500 mm) formed by combining aluminum extruded profiles (materials: A6063S and A6N01S) is provided on this work table, and the work tables are connected by the method shown in FIG. A work table as shown in FIG. 12 was formed.
[0040]
Next, as shown in FIG. 12, an aluminum alloy extruded profile (material: A6063S) is formed on the opposite long sides of the work surface including the top plate 3, the intermediate scaffold 23, and the top plate 3 according to the method shown in FIGS. A workbench was completed with a handrail 11 made of
[0041]
When this work bench was actually used for wall work at the interior construction site, it was confirmed that the safety of the back was ensured by the presence of the handrail, the work could be done extremely safely, and the workability was also improved. It was.
[0042]
【The invention's effect】
According to the present invention, in a portable worktable having a rectangular top plate, the safety of the work is greatly improved without greatly changing the structure and light weight of the conventional portable worktable, and as a result, In addition, a portable worktable that can be expected to improve workability is provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a portable worktable according to the present invention.
FIG. 2 is a partial perspective view showing an embodiment of a method of fixing a handrail to the long side of the top plate in the present invention.
FIG. 3 is a partial cross-sectional view showing another embodiment of the method of fixing the handrail to the long side of the top plate in the present invention.
4 is a front view of a fixing member used in the fixing method of FIG. 3. FIG.
5 is a plan view of a fixing member used in the fixing method of FIG. 3. FIG.
6 is a partial perspective view of a top plate used in the fixing method of FIG. 3;
FIG. 7 is a partial cross-sectional view showing still another embodiment of the method of fixing the handrail to the long side of the top plate in the present invention.
FIG. 8 is a partial perspective view showing an embodiment of a method of fixing a handrail to the short side of the top plate in the present invention.
FIG. 9 is a perspective view showing a portable work table in which end scaffolds according to the present invention are continuously provided.
FIG. 10 is a partial perspective view showing an embodiment of the end scaffold continuous connection system in the present invention.
FIG. 11 is a perspective view showing a portable worktable according to the present invention connected in the longitudinal direction via an intermediate scaffold.
FIG. 12 is a perspective view showing a portable worktable according to the present invention connected in the width direction via an intermediate scaffold.
FIG. 13 is a perspective view showing a portable worktable according to the present invention connected in the longitudinal direction and the width direction through a number of intermediate scaffolds.
FIG. 14 is a partial cross-sectional view showing an embodiment of a method for connecting the top plate of the work table and the intermediate scaffold according to the present invention.
FIG. 15 is a perspective view showing a pin for connecting the top board and the intermediate scaffold.
FIG. 16 is a partial cross-sectional view showing another embodiment of a method for connecting the top plate of the work table and the intermediate scaffold according to the present invention.
FIG. 17 is a perspective view showing a conventional portable work table.
FIG. 18 is a perspective view showing a conventional portable worktable with a handle member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Portable worktable 2 Conventional portable worktable 3 Top plate 4 Main leg 5 Step 6 Hook member 7 Stay 8 Bending part 9 Long side of top plate
9A long side wall
9B Long side intermediate wall
10 Short side of the top
11 Handrail
11A side pier
11B vertical rail
12 Handrail
12B Vertical rail
13 Fixing member
13A vertical section
13B Rise
13C vertical section
13D Rise
14 Plate member
15 Groove
16 Fixing member
17 Top plate clamping member
18 Bend
19 End scaffold
20 End scaffold fixing member
21 Groove
22 legs
23 Intermediate scaffold
24 Connecting members
25 Connecting members
26 Mounting material
27 pin
28 head
29 Insertion section
30 notches
31 Middle part
32 Spring
33 Pin member
34 Inclined surface H hole P pin F fixing means

Claims (5)

In a portable worktable with a ladder-shaped main leg that can be folded on a rectangular top plate and a handle member attached to the top plate or main leg so that it can be folded , the lower surface of the top plate of the handrail A fixing member that comes into contact with the plate and a plate-like member that comes into contact with the top surface of the top plate. The plate-like member and the fixing member hold the end on the long side of the top plate, and the pin from the plate-like member to the top plate A portable workbench characterized in that a handrail is attached to the long side of the top board by inserting the door.   In a portable worktable where a ladder-shaped main leg is foldable on a rectangular top plate and a handle member is foldably attached to the top plate or main leg, the long side of the top plate is placed under the vertical rail of the handrail A fixing member having a vertical portion that contacts the side wall and a rising portion that extends from the vertical portion and that fits into a groove formed by the long-side intermediate wall of the top plate that is positioned inward of the long-side side wall; By providing a plate-like member that comes into contact with the upper surface of the top plate, sandwiching the long side end of the top plate by the plate-like member and the fixing member, and connecting the plate-like member and the top plate with a pin A portable workbench characterized by attaching a handrail to the long side of the top board. The portable worktable according to claim 1 or 2 , further comprising an end scaffold that can be attached to and detached from the short side of the top plate. A plurality of portable worktables according to claim 1 or 2 are arranged such that the short sides of the rectangular top plate are opposed to each other, and an intermediate scaffold is interposed between the short sides of the opposed top plates to provide a worktable. A portable workbench characterized by being connected in the longitudinal direction. A plurality of the portable worktables according to claim 1 or 2 are arranged so that the long sides of the rectangular top plate are opposed to each other, and an intermediate scaffold is interposed between the long sides of the opposed top plates. A portable work platform that is connected in the width direction.

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