JP3078052B2 - Elevating mobile workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertically movable mobile workbench which is provided along an outer wall and is used as a scaffold for a building worker when building a unit house or the like, for example, for wall work.

[0002]

2. Description of the Related Art Conventionally, as this type of work table, there is a work table disclosed in Japanese Utility Model Laid-Open Publication No. 2-39046 and a simple work table (trade name: Fuji Stage) manufactured by Fujimoto Kogyo Co., Ltd.

[0003] The former work table has a main body frame formed in a substantially rectangular frame shape having four pipe-shaped support rods, and four four-pieces slidably inserted into the support rods of the main body frame. The lift frame is provided with a pipe-shaped support rod and is vertically slidably mounted on the body frame, and a lift mechanism for manually lifting and lowering the lift frame (scaffold plate). In addition, when the worker climbs on the scaffold, the ladder provided on the side of the workbench is used, and the worker is transferred from the ladder onto the scaffold.

[0004] The latter worktable is provided with a pair of left and right elevating ladders as masts, and these ladders support both ends of a scaffold plate. Also on this work bench, when the worker climbs on the scaffold board, the worker uses an up-and-down ladder and moves from this ladder onto the scaffold board.

[0005]

However, in the above-described conventional lift-type mobile worktable, the worker climbs the ladder and moves from the ladder onto the scaffold at an appropriate height. However, since the worker has no foothold other than the ladder, the worker is unstable and cannot secure safety before climbing on the scaffold plate of the worktable.

[0006] The present invention is intended to solve such a problem, and it is possible to prevent an operator from becoming unstable when transferring from a ladder to a scaffold, and to ensure safety. It is an object of the present invention to provide a liftable worktable.

[0007]

To achieve the above object, according to the solution to ## elevating mobile work platform of the present invention, both ends of the scaffolding plates are respectively supported by the pair of ladder element, the support height of the scaffolding plate the side surface of the front Kihashigo transducer in the vicinity, attached step member a foothold for the worker, resides the ladder element also above the scaffolding board, a pair of top ladder in this ladder one
It is characterized by being able to move up and down with respect to a pair of lower ladders .

[0008]

In the above-described liftable work table of the present invention, when climbing on the scaffold, the worker climbs up to the vicinity of the support height position of the scaffold by using the liftable ladder, and then moves on the side of the ladder. While using the step member as a foothold, the step member can be smoothly moved from the ladder side onto the scaffold plate. In addition,
There is also a ladder above, and this ladder
Pair of upper ladders move up and down relative to a pair of lower ladders
The upper ladder against the lower one.
By extending it, the supporting height position of the scaffold can be changed arbitrarily.
As a result, the range of work that can be performed by
The enclosure becomes wider.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lift-type movable workbench according to an embodiment of the present invention.
FIG. 2 is an overall perspective view showing a vertically movable work table of the present embodiment, FIG. 3 is a perspective view showing an anchor of the present embodiment, and FIG. FIG. 4 (b) is a side view showing a connecting portion between the lifting ladder and the anchor in the example.
Is a side view showing a modification of the connecting portion, FIGS. 5 (a) and 5 (b) are cross-sectional views of a main part showing a procedure for mounting the anchor of the present embodiment to a building, and FIG. 6 shows an anchor of the present embodiment. It is a front view which shows the building attached.

First, referring to FIG. 2, the overall construction of the lift-type moving work table of the present embodiment will be described. As shown in FIG. 2, a pair of left and right lift-type ladders 1, 1 are provided as masts. Both ends of the scaffold plate 2 are supported by the footrests 1c of the ladders 1 and 1 to constitute a work table.

Each elevating ladder 1 has a lower ladder 1a.
And an upper ladder 1b that can move up and down with respect to the lower ladder 1a.
At the place where the workbench is to be installed, each ladder 1 is set up and supported by the outriggers 3 and 4, and the opposing ladders 1 and 1 are connected by the horizontal brace 5 and the X brace 6. By connecting, the work table can be easily assembled.

In the working table of the present embodiment, as shown in FIGS. 1 and 2, the side of the ladder 1 near the supporting height position of the scaffolding plate 2 (in this embodiment, the outrigger 3 on the side of the lower ladder 1a). A step member 18 serving as a foothold for the worker is attached to the
Ladder 1 also exists above 2 . This step member 1
Reference numeral 8 denotes a plate member having a size of, for example, about 100 mm × 100 mm, and has a structural strength and a mounting strength enough to withstand the entire weight of the worker.

By the way, in this embodiment, as shown in FIG. 4A, when the above-mentioned movable workbench is installed along the wall of a building (to be described later with reference to FIG. 6), it is locked to the building. An anchor 11 is provided, and a slide-type connecting portion 7 for connecting the up-and-down ladders 1 and the anchor 11 while allowing the up-and-down movement of the up-and-down ladders 1 and 1 is provided.

The slide type connecting portion 7 shown in FIG. 4A includes a hollow pipe 8 attached to the anchor 11 side in parallel with the elevating direction of the elevating ladder 1 and a lower ladder 1 of the elevating ladder 1.
a, a hollow pipe 9 fixed in parallel to the elevating direction of the elevating ladder 1, and a slide having a diameter slightly smaller than the inner diameter of these pipes 8, 9 and penetrating these pipes 8, 9. And a shaft 10.

The pipes 8 and 9 move in the direction of elevating the ladder 1 relative to the slide shaft 10, respectively.
(Slide), and its movement can be regulated by tightening the fixing screws 8a and 9a, respectively.

FIG. 4A shows a case where the pipe 9 on the side of the elevating ladder 1 is fixed to the lower ladder 1a.
As shown in FIG. 4 (b), a sliding connection portion 7A in which the pipe 9 is fixed to the upper ladder 1b may be configured. Even in this case, it goes without saying that the same operation and effect (described later) as those of the work table shown in FIG. 4A can be obtained.

On the other hand, as shown in FIGS. 3 and 4, the anchor 11 of this embodiment has a shaft member 12, and a pipe mounting portion 13 and a locking projection 14 are mounted on both ends of the shaft member 12, respectively. Have been.

The pipe mounting portion 13 is for mounting the pipe 8, and the locking projection 14 is formed to have a size capable of inserting the gap 23 between the box-shaped building units 21 and 22 (see FIG. 6). The operation of the unit 21,
22 is a plate-shaped member that is locked to the beams 21a and 22a (see FIGS. 4A, 4B, and 5B).

Further, a unit 21,
A pressing plate 16 which comes into contact with outer walls 21b and 22b (see FIG. 4) of rubber 22 via a rubber cushion 17 is provided in a loosely fitted state, and a tightening nut 15 is provided.

As shown in FIG. 5 (b), the tightening nut 15 tightens the shaft member 12 after the locking projection 14 is locked, so that the holding plate 16, the rubber cushion 17 and the locking projection 1 are locked.
4 and beams 21a, 22a and outer walls 21b, 22b
For fastening the main body of the anchor 11 to the units 21 and 22.

Next, a description will be given of a case where the work table of this embodiment constructed as described above is installed along a building (unit house) as shown in FIG. 6, for example.

Here, as shown in FIG. 6, the anchor 11 is attached to the units 21 and 22 using the joint between the first-floor unit 21 and the second-floor unit 22 of the unit house, and the slide-type connecting portion is provided. 7 is attached to the pipe 8. In addition, the box-shaped units 21 and 2 constituting the living space
2 are joined to face each other so as to form a predetermined gap 23 between the first-floor roof beam 21a and the second-floor floor beam 22a.

In order to attach the anchor 11 to such a unit house, first, as shown in FIG. 5A, the locking projection 14 is inserted into the gap 23 between the beams 21a and 22a, and then, as shown in FIG. ), The entire anchor 11 is rotated by 90 degrees.

After the rotation of the anchor 11, the anchor 11
Is lightly pulled forward (outward), so that the locking projection 14 and the beams 21a and 22a are locked, and in this state, the shaft member 12 is tightened by the tightening nut 15 so that the pressing plate 16, rubber cushion 17 and locking projection 1
4 and beams 21a, 22a and outer walls 21b, 22b
Are clamped, and the anchor 11 is fastened to the units 21 and 22.

Next, as shown in FIGS. 4 (a) and 4 (b), the up-and-down type ladder 1 is attached to the anchor 11 thus attached via the sliding connection portions 7 and 7A. It is provided along 22b.

At this time, even if the lower ladder 1a and the upper ladder 1b of the elevating ladder 1 are moved up and down with respect to the anchor 11, the work table of the present embodiment does not On the other hand, the position of the pipes 8, 9 is adjusted, and then fixed by the fixing screws 8a, 9a, thereby connecting the anchor 11 and the elevating ladder 1 while allowing the elevating ladder 1 to move up and down. be able to.

Therefore, after the work table is installed, the elevating ladder 1
It is not necessary to change the locking position of the anchor 11 to the building (unit house) even if the height position of the anchor 11 is changed. Also,
The elevating ladders 1, 1 that support the scaffolding board 2 are connected to the building via the sliding connection parts 7, 7A and the anchor 11, and even when the position height of the scaffolding board 2 is changed, the horizontal force is reduced. The work table can be shared and the work table can be prevented from falling down. Even if the work table is installed on narrow ground or soft ground, the installation stability can be ensured.

When the worker climbs on the scaffold plate 2 of the work bench installed as described above, the worker climbs up to the vicinity of the support height position of the scaffold plate 2 using the elevating ladder 1. After that, an operation of moving in the air from the ladder 1 side to the scaffold plate 2 (the opposite surface of the ladder 1) is performed. In this embodiment, the step member 18 on the side surface of the ladder 1 is used as a foothold at the time of the movement. Use the ladder 1 above the scaffold 2 as a clue
It is possible to use.

In other words, the worker can use the ladder 1 above the scaffold 2
Is grasped by hand, and one foot is put on the step member 18. With the one foot as an axis, the ladder 1 is rotated by 90 degrees from one surface (outside surface of the worktable) to the opposite surface, and is forcibly pushed onto the scaffold plate 2 from the ladder 1 side. You can move without.

Therefore, the step member 18 is used as a foothold when moving from the ladder 1 onto the scaffold plate 2 ,
By using the ladder above the board as a clue , the worker can be prevented from becoming unstable, and safety can be ensured.

The present invention is not limited to the above-described embodiment, but is included in the scope of the present invention even if there is a design change or the like without departing from the gist of the present invention. For example, in the above-described embodiment, the step member 18 is provided at the upper end mounting position of the outrigger 3 on the side surface of the lower ladder 1a. However, the present invention is not limited to this, and the step member 18 may be moved to another appropriate position. Or may be attached to a plurality of locations.

[0032]

As described above in detail, according to the lift-type movable work table of the present invention, the step member serving as a foothold for the worker is attached to the side surface of the lift-type ladder near the supporting height position of the scaffold plate. With such an extremely simple configuration, the worker can move from the ladder onto the scaffold while maintaining a stable state, and this has the effect of ensuring safety. Also,
A pair of upper ladders forming a ladder becomes a pair of lower ladders
The upper ladder can be moved up and down.
By extending against the lower ladder, the supporting height position of the scaffold
Can be changed arbitrarily to widen the work range
Can be

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part (a step member mounting part) of a vertically movable work table as one embodiment of the present invention.

FIG. 2 is an overall perspective view showing a vertically movable workbench of the present embodiment.

FIG. 3 is a perspective view showing an anchor of the present embodiment.

4 (a) is a side view showing the same, and FIG. 4 (b) is a side view showing a modified example thereof.

FIGS. 5A and 5B are cross-sectional views of main parts showing a procedure for mounting the anchor of the present embodiment to a building.

FIG. 6 is a front view showing a building to which the anchor of this embodiment is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevating ladder 1a Lower ladder 1b Upper ladder 1c Footrest part 2 Scaffold plate 3,4 Outrigger 5 Horizontal breath 6 X breath 7,7A Sliding connection part 8 Pipe 8a Fixing screw 9 Pipe 9a Fixing screw 10 Slide shaft 11 Anchor 12 Shaft Member 13 Pipe mounting portion 14 Locking projection 15 Tightening nut 16 Pressing plate 17 Rubber cushion 18 Step member 21 First floor unit 21a First floor roof beam 21b First floor outer wall 22 Second floor unit 22a Second floor floor beam 22b Second floor outer wall 23 Gap

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 56-112236 (JP, U) JP-A 60-17843 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E04G 1/15 E04G 1/30

Claims (1)

(57) [Claims] 1. A two ends of the scaffold board is it <br/> respectively supported by a pair of right and left ladder element, the side surface of <br/> before Kihashigo transducer in the support height position near the scaffolding board, worker step member is attached to the foothold, resides the ladder element also above the scaffolding board, the
The pair of upper ladders on the ladder is
An up-and-down mobile worktable, which can be moved up and down .