JP3177898U - Fall prevention tool - Google Patents

Abstract

An object of the present invention is to provide a fall-preventing tool capable of easily ensuring safety against the fall of an operator when the operator works on a truck bed.
In a track in which a rotation shaft is provided on the upper end side of a tilt 101 that forms a side wall of a loading platform, and a frame-equipped sheet 102 that is rotatable in the vertical direction by the rotation shaft is provided, the frame-equipped sheet 102 A fall prevention tool 1 attached to a frame for preventing a worker from falling from a truck bed, and a pair of wire fixing members provided at both ends of a frame 103a extending in a horizontal direction in the frame-equipped sheet 102 2B and a wire 3 stretched between the pair of wire fixing members.
[Selection] Figure 2

Description

  The present invention relates to a fall prevention tool, and more particularly to a fall prevention tool for preventing an operator from falling during work on a truck bed.

In so-called flat body trucks that are provided with tilts that form walls on the left and right sides and the back of the loading platform, the height of the tilt is generally low, so that the load during traveling is prevented from falling or scattering. Some devices (hereinafter referred to as spill prevention devices).
For example, as disclosed in Patent Document 1, this spill prevention device attaches a rotatable frame-attached sheet to the upper end of the tilt, and covers (encloses) a load with a frame-attached sheet.
When equipped with such a spill prevention device, the framed seat can be erected at an arbitrary inclination angle by an electric motor or the like, and a wall higher than the tilt can be formed. Can be increased.

By the way, when the worker works on the loading platform, if the height of the load is low, the falling of the worker can be prevented by the standing frame-attached sheet.
However, when the load is loaded in the full cargo space with the framed seat upright, there is nothing to support the worker from the side, and there is a risk that the worker will fall from the loading platform. It was.

  For such a problem, for example, a fall prevention facility has been proposed as described in Patent Document 2. In the fall prevention device disclosed in Patent Document 2, a pair of support columns is erected along the track side surface on the ground on the side of the track, and the master rope is stretched with an appropriate tension between the ends of the support columns. An operator on the truck bed is secured against dropping by hooking a safety belt to the master rope.

Registered Utility Model Publication No. 3005569 JP 11-291863 A

  However, in the worker's fall prevention equipment disclosed in Patent Document 1, a pair of columns is installed on the side of the track every time work is performed, and a master rope must be stretched between the columns. Since the installation and removal work takes time, there is a problem that work efficiency is remarkably lowered.

  The present invention has been made paying attention to the above points, and provides a fall prevention tool that can easily ensure safety against the fall of the worker when the worker works on the truck bed. Objective.

In order to achieve the above object, in a truck provided with a rotating shaft on the upper end side of the tilt forming the side wall of the loading platform according to the present invention, and provided with a framed seat that can be turned up and down by the rotating shaft, A fall-preventing tool attached to the frame of the frame-equipped sheet to prevent the operator from falling from the truck bed, and a pair of wire fixings provided on both ends of the frame extending in the horizontal direction in the frame-equipped sheet It is characterized by including a member and a wire stretched between the pair of wire fixing members.
By comprising in this way, in a truck bed, an operator can prevent falling by hooking a safety belt rope attached to the wire to the wire, and can safely work on the truck bed. .
Moreover, according to this structure, since it is not necessary to install and withdraw a fall prevention tool for every work, the fall of work efficiency can be prevented.

Each of the pair of wire fixing members sandwiches the frame of the frame-attached sheet by the rear side of two plate portions that can be opened and closed with one end side as a rotation axis, and the other end side of the two plate portions. Is clamped between the clamp member fixed to the frame by fastening the bolt and nut and the front side of the two plate portions, and is fixed to the clamp member by fastening the bolt and nut. And a wire holding member that holds one end of the wire, and is interposed between the bolt and the nut, and is formed in a cylindrical flat plate shape, and the front side of one of the two plate portions is inserted. It is preferable that the washer member is provided with a claw portion that prevents the bolt from rotating.
In this way, the fall prevention device can be attached to the frame of the framed seat by fastening bolts and nuts, that is, detachably attachable, so that it can be easily removed when it is not necessary. It can be used for a general purpose with respect to a conventional sheet with a frame mounted on the.
Further, by providing the washer member with a claw portion that prevents rotation of the bolt, the bolt and the nut can be more easily fastened.

Further, it is preferable that the wire holding member is formed with a through-hole through which the wire is inserted, and one end side is inserted through the through-hole, and the doubled wire is bound by a binding metal fitting.
With this configuration, the wire can be easily stretched between the pair of wire fixing members.

  ADVANTAGE OF THE INVENTION According to this invention, the fall prevention tool which can ensure the safety | security with respect to a worker's fall easily at the time of the worker's work in a truck bed can be obtained.

FIG. 1 is a perspective view showing an overall configuration of a fall prevention tool according to the present invention. FIG. 2 is a perspective view of the fall prevention tool of FIG. 1 as seen from a truck bed. FIG. 3 is a front view of a fixing bracket included in the fall prevention tool of FIG. FIG. 4 is a side view of the fixing metal fitting of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of a fall prevention tool according to the present invention.
The fall prevention tool 1 according to the present invention is used by being attached to a frame-equipped sheet 102 provided on a tilt 101 that constitutes a cargo bed side wall of a truck 100 illustrated.
In FIG. 1, only one side portion of the truck bed is shown, but the same configuration may be applied to the opposite side portion.

The frame-equipped sheet 102 is a pipe frame 103 (frame) that is framed along the outer shape of the tilt 101 and is fixed to the pipe frame 103 by a string 106 and covers the pipe frame 103. 104.
One end (upper end side in FIG. 1) in the short direction (height direction) of the pipe frame 103 is rotatable in a vertical direction (a direction indicated by an arrow) on a rotary shaft 105 provided on the upper end side of the tilting 101. It is attached.

The frame-equipped sheet 102 (pipe frame 103) can be rotated to an arbitrary angle in the direction of the arrow by a drive mechanism (not shown) such as an electric motor provided in the vicinity of the rotation shaft 105. That is, FIG. 1 shows a state in which the frame-equipped sheet 102 is disposed along the outer surface of the tilt 101. When this is rotated upward about the rotating shaft 105, FIG. 2 (a perspective view seen from the truck bed). ), The frame-equipped sheet 102 stands up above the tilting 101.
Thereby, the height of the side wall of the truck bed becomes higher, and even if a load (such as soil) is piled up on the truck bed, the fall is prevented.

  In addition, the lower end side of the pipe frame 103 in the state of FIG. 1, and the upper end side of the pipe frame 103 in the state of FIG. 2 extend in a straight bar shape along the longitudinal direction (horizontal direction) of the side tilt 101 and It is in an exposed state without being covered. The exposed frame portion extending in the horizontal direction is referred to as a horizontal straight rod portion 103a.

The fall prevention tool 1 according to the present invention is detachably attached to the horizontal straight rod portion 103a. Specifically, the fall prevention tool 1 includes a pair of fixing metal fittings 2A and 2B disposed opposite to both ends of the horizontal straight bar portion 103a, and a wire 3 stretched between the fixing metal fittings 2A and 2B. And a binding metal fitting 4 for binding the ends of the wire 3.
3 is a front view of the fixtures 2A and 2B, and FIG. 4 is a side view. As shown in FIG. 3 and FIG. 4, the fixing brackets 2A and 2B are respectively an L-shaped plate-shaped bracket 10 (wire holding member) and for fixing the L-shaped plate-shaped bracket 10 to the horizontal straight bar portion 103a. And a clamp fitting 11 (clamp member).

  As shown in the drawing, the clamp fitting 11 has two plate portions 11b and 11c that can be opened and closed about a rotating shaft 11a, for example. The plate portions 11b and 11c are curved so that their rear portions are in close contact with the surface of the horizontal straight rod portion 103a. The clamp fitting 11 holds the horizontal straight rod portion 103a by rotating the two plate portions 11b and 11c in the closing direction, and is fixed to the horizontal straight rod portion 103a.

  Further, the front side of the two plate portions 11b and 11c is formed in a flat plate shape, and when the clamp fitting 11 is closed, the L-shaped plate-like metal fitting 10 is held by the front side of the plate portions 11b and 11c. Thus, the L-shaped plate-shaped metal fitting 10 is fixed to the clamp metal fitting 11. More specifically, one plate portion 11 b fixes one side surface side of the L-shaped plate-shaped bracket 10, and the other plate portion 11 c fixes the other side surface side of the L-shaped plate-shaped bracket 10. This fixing is performed by, for example, two hexagon bolts 14 and 15 and corresponding nuts 16 and 17 as shown in the figure.

The plate portions 11b and 11c are formed with through holes (not shown) through which the two hexagon bolts 14 and 15 pass, respectively, and the hexagon bolts 14 and 15 have a washer 18 (washer member) common to them. Through the plate portion 11b side to the plate portion 11c side, and are fastened by nuts 16 and 17, respectively.
The washer 18 has a cylindrical flat plate shape, and as shown in FIG. 2, the two hexagonal bolts 14 and 15 pass through in a state where substantially the entire front side of the plate portion 11b is inserted into the washer 18. Has been. For this reason, the washer 18 is not displaced with respect to the L-shaped metal plate 10, and the front portion side of the plate portion 11 b is firmly fixed to the L-shaped metal plate 10 with substantially uniform force.
Further, the washer 18 is provided with a claw portion 18a for fixing the rotation of the hexagon bolts 14 and 15, so that the nuts 16 and 17 can be easily fastened. That is, since the rotation of the hexagon bolts 14 and 15 is blocked by the claw portion 18a, the plate portions 11b and 11c and the L-shaped plate-shaped metal fitting 10 can be easily fixed by rotating the nuts 16 and 17. .

Further, as shown in FIG. 3, the L-shaped metal plate 10 is formed with a through hole 10a through which the wire 3 can be inserted.
One end of the wire 3 is inserted into the through-hole 10a, and the wire 3 that is doubled by being folded is bound by the binding metal fitting 4.
The binding metal 4 is configured such that the double wire 3 held by the base portion 4a is pressed by a U-shaped bolt 4b and the bolt 4b is fixed to the base portion 4a by a nut 4c.

Further, as shown in the figure, the L-shaped bracket 10 is fixed so as to protrude downward from the horizontal straight bar portion 103a in the state of FIG. As a result, when the framed sheet 102 rotates and stands up as shown in FIG. 2, the wire 3 is stretched above the horizontal straight bar portion 103a.
In this state, as shown in FIG. 2, when the worker 50 hooks the hook 52 of the safety belt rope 51 on the wire 3, the worker 50 moves from the front to the rear of the truck bed while ensuring safety against dropping. can do.

As described above, according to the present embodiment, in the frame-equipped sheet 102 provided so as to be rotatable in the vertical direction with respect to the tilt 101 of the truck bed, a pair of fixing brackets 2A are provided on both ends of the horizontal straight bar portion 103a. , 2B are detachably provided, and the wire 3 is stretched between the fixtures 2A, 2B.
In this configuration, the worker 50 can prevent the fall by putting the hook 52 of the safety belt rope 51 attached to the wire 3 on the wire 3 and can safely work on the truck bed.
Moreover, according to this structure, since it is not necessary to install and remove the fall prevention tool 1 for every work, the fall of work efficiency can be prevented.
Moreover, since the fall prevention tool 1 is attached to the frame-equipped sheet 102 by the clamp metal fitting 11, it can be easily removed when it is not necessary, and is less than the conventional frame-equipped sheet mounted on the truck bed. It can be used for general purposes.

  In the above-described embodiment, the fall prevention tool 1 is described as being attached to the frame-equipped sheet 102 provided on the tilt 101 constituting the load carrier side wall, but the tilt (not shown) at the rear of the load platform has a frame. When a sheet is provided, the fall prevention tool 1 according to the present invention may be attached to the framed sheet.

  In the above-described embodiment, the fixing brackets 2A and 2B are attached by holding the horizontal straight rod portion 103a by the clamp bracket 11 (clamp member). It is not limited. That is, any fixing method can be adopted as long as the fixing brackets 2A and 2B can be fixed to the horizontal straight bar portion 103a.

DESCRIPTION OF SYMBOLS 1 Fall prevention tool 2A, 2B Fixing metal fitting 3 Wire 4 Bundling metal fitting 10 L-shaped plate-shaped metal fitting (wire holding member)
11 Clamp bracket (Clamp member)
11b Plate portion 11c Plate portion 14 Bolt 15 Bolt 16 Nut 17 Nut 18 Washer (washer member)
18a Claw part 50 Worker 51 Safety belt rope 52 Hook 100 Truck 101 Slip 102 Sheet 103 with frame Pipe frame 103a Horizontal straight part 104 Sheet 105 Rotating shaft

Claims (3)

In a truck provided with a rotating shaft on the upper end side of the tilt that forms the side wall of the loading platform, and provided with a framed sheet that can be rotated in the vertical direction by the rotating shaft, the truck is attached to the frame of the framed sheet. A fall prevention tool for preventing fall from the truck bed of
A pair of wire fixing members provided on both ends of a frame extending in the horizontal direction in the framed sheet;
A fall prevention tool comprising a wire stretched between the pair of wire fixing members. Each of the pair of wire fixing members is
By sandwiching the frame of the frame-attached sheet by the rear side of two plate portions that can be opened and closed with one end side as a rotation shaft, the other end side of the two plate portions is fastened with a bolt and a nut. A clamp member fixed against
A wire holding member that is held by the front side of the two plate portions, is fixed to the clamp member by fastening the bolt and nut, and holds one end of the wire;
And a washer member that is interposed between the bolt and the nut, is formed in a cylindrical flat plate shape, and a front part of any one of the two plate portions is inserted,
2. The overturn prevention tool according to claim 1, wherein the washer member is provided with a claw portion for preventing rotation of the bolt.   The wire holding member is formed with a through-hole through which the wire is inserted, and one end side is inserted into the through-hole, and the doubled wire that is folded back is bound by a binding metal fitting. The overturn prevention tool according to claim 2.

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