JPH0439265Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a fall prevention device for an aerial work vehicle that prevents tools, equipment, etc. from falling from a workbench during work.

(2) Prior Art It has been known to provide a fall prevention device for work tools and the like on the workbench of an aerial work vehicle, as described in, for example, Japanese Patent Laid-Open No. 60-202100.

(3) Problems that the invention aims to solve However, conventional fall prevention devices for work tools, etc.
The workbench is installed on the outside of the wall in the working direction so that the top is open when in use, so if you try to prevent falls over a wide area according to the work, the fall prevention device will become bulky. When the workbench is moved with the device stored, the fall prevention device protrudes from the workbench, making it easy for the fall prevention device to come into contact with obstacles, causing damage to the fall prevention device.

(4) Means for Solving the Problems In order to solve the above problems, the present invention provides support pieces that are attached to the left, right, and front side walls of the workbench so as to sandwich the sidewalls of the workbench. ,
The base ends of these supporting pieces are respectively attached above, and the base ends are pivoted between a storage position where the support pieces are held substantially parallel to the inner surface of the side wall of the workbench and a working position where they are held so as to protrude outward from the workbench. 1 fall prevention plate, a storage position where the base end is attached to the tip of each of these first fall prevention plates, and is folded and held on the first fall prevention plate, and a storage position where the first fall prevention plate is folded and held. A second fall prevention plate that swings between the work position and the work position that is extended and held, the right ends of the first and second fall prevention plates that protrude to the left side of the workbench, and the front side of the workbench. between the left ends of the first and second fall prevention plates that protrude to The sheet is detachably attached between the left end of the fall prevention plate No. 2 and the left end of the fall prevention plate No. 2.

(5) Effect With the above configuration, when moving the workbench to the work position and performing work, the first fall prevention plate and the second fall prevention plate are swung, respectively, to the left and right sides of the workbench. and the first and second parts projecting outward from the front side, respectively, and projecting to the left side of the workbench.
between the right end of the fall prevention plate and the left ends of the first and second fall prevention plates protruding to the front side of the workbench, and
Attach a sheet between the right ends of the first and second fall prevention plates that protrude to the front side of the workbench and the left ends of the first and second fall prevention plates that protrude to the right side of the workbench. Cover the left, front, and right sides with fall prevention plates and sheets. When moving the workbench, the seat is removed and the first fall prevention plate and the second fall prevention plate are respectively swung and stored in the workbench.

(6) Examples Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 3, in the aerial work vehicle, a turntable 3 is placed on a vehicle body 1 supported by outriggers 2, and the base of a telescopic boom 4 is pivotally supported on the turntable 3. expands and contracts by a telescoping device (not shown) equipped with a telescoping cylinder, and also rises and falls due to the expansion and contraction of the undulation cylinder 5,
A workbench 6 is held in equilibrium at the tip of the telescopic boom 4, and the workbench 6 is equipped with a fall prevention device 7.

As shown in FIGS. 1 and 2, the fall prevention device 7 includes support pieces on the left, right, and front side walls of the workbench 6, the upper ends of which are inclined upward from the inside of the workbench 6 to the outside. 8a, 8b, and 8c are attached to sandwich the side walls of the workbench 6, and hinges 10a, 10b, and 10c are attached to the upper inner sides of these support pieces 8a, 8b, and 8c, respectively. The base ends of the first fall prevention plates 9a, 9b, 9c are attached, and these first fall prevention plates 9
a, 9b, 9c are hinges 10a, 10, respectively
b, 10c, a storage position held approximately parallel to the inner surface of the side wall of the workbench 6, and support pieces 8a, 8.
b and 8c, respectively, and swings between a working position in which it is held and protrudes outward from the workbench 6;
Second fall prevention plates 11a, 1 made of transparent resin are attached to the tips of the first fall prevention plates 9a, 9b, 9c via hinges 12a, 12b, 12c, respectively.
The proximal ends of 1b and 11c are attached, and these second
The fall prevention plates 11a, 11b, and 11c are folded and held on the first fall prevention plates 9a, 9b, and 9c, respectively, with the hinges 12a, 12b, and 12c as centers, and the first fall prevention plates It swings between the working position where it is expanded and held on the extension of the prevention plates 9a, 9b, and 9c, respectively. A first fall prevention plate 9a protruding from the left side of the workbench 6 and this first
The right end of the second fall prevention plate 11a that is deployed on the extension of the fall prevention plate 9a, the first fall prevention plate 9b that protrudes toward the front side of the workbench 6, and the extension of this first fall prevention plate 9b. Second fall prevention plate 1 deployed to
1b and the first fall prevention plate 9b.
and the right end of the second fall prevention plate 11b, the first fall prevention plate 9c protruding to the right side of the workbench 6, and this first fall prevention plate 9c.
The space between the left ends of the second fall prevention plate 11c, which is developed on an extension of the fall prevention plate 9c, is covered with sheets 13a and 13b made of transparent vinyl or the like, which are each removably attached.

With the above configuration, when moving the workbench 6 to the work position and performing work, the first fall prevention plate 9a,
9b and 9c are respectively swung, and the supporting pieces 8a and 8
The first fall prevention plate 9 is brought into contact with the upper end of b, 8c.
a, 9b, 9c protrude outward from the workbench 6, and the second fall prevention plates 11a, 11b, 11
The first fall prevention plates 9a,
9b and 9c, the right end of the first fall prevention plate 9a and second fall prevention plate 11a protruding to the left side of the workbench 6, and the first fall prevention plate protruding to the front side of the workbench 6. Between the left end of the plate 9b and the second fall prevention plate 11b, the right end of the first fall prevention plate 9b and the second fall prevention plate 11b protruding to the front side of the workbench 6, and the right side of the workbench 6. Sheets 13a and 13b are respectively installed between the left ends of the first fall prevention plate 9c and the second fall prevention plate 11c that protrude from the top, and the left, front and right sides of the workbench 6 are surrounded by the fall prevention plate and the sheet. cover. Thereafter, the worker performs the work, but even if the worker accidentally drops the tool or equipment during the work, the tool or equipment is caught by the fall prevention plate or sheet and is prevented from falling to the ground. Next, when moving the workbench 6, etc., remove the sheets 13a, 13b, swing the second fall prevention plates 11a, 11b, 11c, respectively, and place them on the first fall prevention plates 9a, 9b, 9c. While folding, the first fall prevention plates 9a, 9b, 9c
are respectively swung, and the first fall prevention plates 9a, 9
b, 9c and second fall prevention plates 11a, 11b,
11c is stored in the workbench 6.

In the above embodiment, the left, front, and right sides of the workbench 6 are covered with a fall prevention plate and a sheet, but only one or two sides are covered with a fall prevention plate or a fall prevention plate and a sheet. Also, when working near the workbench 6, the first fall prevention plate 9a,
By simply swinging each of 9b and 9c to project outward from the workbench 6, tools or equipment can be prevented from falling.

(7) Effects of the invention As described above, according to the invention, the fall prevention plate that catches tools or equipment, etc. is made foldable.
Since it protrudes outward from the workbench when in use and is stored within the workbench when stored, it is possible to prevent falls over a wide area depending on the work, and also prevent damage to the fall protection device when working at heights. A vehicle fall protection device is provided.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, Fig. 1 is an explanatory diagram showing the configuration of the fall prevention device, Fig. 2 is a plan view of the workbench showing the working state, and Fig. 3 shows the working state of the aerial work vehicle. FIG. 6... Workbench, 7... Fall prevention device, 9a, 9
b, 9c...first fall prevention plate, 11a, 11
b, 11c...Second fall prevention plate.

Claims (1)

[Scope of utility model registration request] Support pieces are attached to the left, right, and front side walls of the workbench, respectively, so as to sandwich the sidewalls of the workbench, and the base ends are respectively attached above these support pieces, and are held approximately parallel to the inner surface of the sidewalls of the workbench. a first fall prevention plate that swings between a storage position where the workbench is held and a working position where the workbench is held while protruding outward from the workbench; , a second fall prevention plate that swings between a storage position where it is folded and held on the first fall prevention plate and a working position where it is unfolded and held on an extension of the first fall prevention plate. and the first one protruding to the left side of the workbench.
and between the right end of the second fall prevention plate and the left ends of the first and second fall prevention plates that protrude to the front side of the workbench, and the first and second fall prevention plates that protrude to the front side of the workbench. A fall prevention device for an aerial work vehicle, comprising a seat detachably attached between the right end of the workbench and the left ends of the first and second fall prevention plates protruding to the right side of the workbench.