JP3210955U - Fall prevention device for working at height in a wing car - Google Patents

Abstract

An object of the present invention is to provide a crash prevention facility capable of ensuring the safety of an operator who loads and unloads a load regardless of where the wing vehicle moves. A rail mounted on a ceiling portion of a box-shaped cargo bed 52 so as to extend in the front-rear direction is provided in a wing wheel 51 having a wing 53 whose side surface of the box-shaped cargo bed 52 pivots in the vertical direction to open and close. And a slider 2 movably fitted so as not to be detached from the rail, and a safety block 23 suspended from the slider 2, and a safety belt 41 attached to the operator 40 is connected to the safety block 23. In this state, the worker 40 can freely move on the floor surface 52 a inside the box-type loading platform 52. [Selection] Figure 1

Description

  The present invention relates to a fall-preventing device for high-level work in a wing vehicle in which a side surface of a box-type cargo bed is a wing that pivots up and down to open and close.

  Among the van body type trucks equipped with a box-type cargo bed that can protect the luggage from the wind and rain, as a truck type that is easy to load and unload luggage, the side of the box-type cargo bed turns up and down and opens and closes. There is a wing car.

  In such a wing car, it is normal to load and unload luggage with a forklift with the wings flipped up and opened, but when a cushioning material is sandwiched between luggage loaded on a pallet, When manual loading is required due to the nature, it is necessary for an operator to work on the floor surface of the box-type cargo bed. In addition, when loading a luggage near the ceiling of a box-type loading platform, an operator sometimes climbs the luggage to work.

  At that time, if the worker falls from the floor of the box-type loading platform or from the load, there is a risk of a serious occupational accident. Therefore, it is necessary to take measures to prevent the worker from falling.

  However, as a countermeasure, as shown in FIG. 9, for example, the safety block 23 is suspended from the ceiling 61 of the building where the cargo is loaded and unloaded, and the end of the belt rope 24 pulled out from the retractor of the safety block 23 is attached. When the operator 40 is connected to the safety belt 41 worn by the operator 40, opens the wing 53 of the box-type carrier 52 of the wing wheel 51, and the worker 40 goes up to the floor 52 a of the box-type carrier 52, the belt rope 24 is moved to the wing 53. It is bent by being pushed by the tip of.

  In this state, when the operator 40 steps off the floor 52a of the box-type cargo bed 52 or the luggage and falls, the band rope 24 swings around the tip of the wing 53, and the operator 40 looks like a pendulum. There is a risk of falling into a dangerous situation.

  On the other hand, as shown in FIG. 10, a wire 62 is stretched between the upper part of the front frame 52 b and the rear frame 52 c of the box-type loading platform 52 of the wing wheel 51, and the safety block 23 is movable along the wire 62. It is also conceivable that the tip of the belt rope 24 pulled out from the retractor of the safety block 23 is connected to the safety belt 41 worn by the operator 40.

  Also, as described in Patent Document 1 below, a pair of struts are installed before and after the parking position of the wing car at the loading / unloading location, and a safety block is suspended from the wire stretched between the upper portions of the struts It is also conceivable to connect the tip of the belt rope drawn from the retractor of the safety block to the safety belt worn by the operator.

Japanese Patent Laying-Open No. 2015-16059

  However, as shown in FIG. 10, when the wire 62 is stretched on the box-type carrier 52 of the wing wheel 51, the tension of the wire 62 cannot be increased too much due to the strength of the box-type carrier 52. If the foot is removed from the floor surface 52a of the box-type loading platform 52, the wire 62 may be bent and the worker 40 may collide with the ground. Further, excessive tension may act on the wire 62 due to the weight and impact load of the operator 40, and the upper part of the front frame 52 b and the rear frame 52 c of the box-type cargo bed 52 may be attracted and the box-type cargo bed 52 may be deformed. is there.

  Moreover, as described in Patent Document 1, when a wire is stretched between the upper portions of a pair of struts installed before and after the parking position of the wing car, the wire is maintained in a tension state due to the inclination and curvature of the struts. In addition to the possibility of disappearing, there is no possibility of safety measures being taken because there is no such facility when loading and unloading luggage at the destination of the wing car.

  In addition, with the decline in the number of young workers, there is a shortage of truck drivers who are also workers, and if there are many driver crashes, there will be a further decrease in the number of people who want to be drivers.

  In view of this, the present invention is intended to provide a crash prevention facility that can ensure the safety of an operator who loads and unloads luggage regardless of where the wing vehicle moves.

In order to solve the above problems, the fall prevention device according to the present invention is provided in a wing vehicle in which the side surface of the box-type cargo bed is a wing that rotates in the vertical direction to open and close,
A rail that is attached to the ceiling portion of the box-type carrier so as to extend in the front-rear direction, a slider that is movably fitted so as not to be detached from the rail, and a safety block that is suspended from the slider,
The worker can move freely on the floor inside the box-type cargo bed with the safety belt attached to the safety block connected to the safety block.

  Further, the rail is attached to the ceiling portion of the wing from the side surface of the box-type carrier to the top surface.

In addition, the mounting of the rail to the wing is performed by using a molding plate and a gripping bracket for the reinforcing bar along the back surface of the outer plate of the wing,
The molding plate has a hat structure in which flange portions are formed on both sides of the convex portion, and the gripping bracket is composed of a pair of gripping members that grip the rail,
The flange portions on both sides of the molding plate are fixed to the reinforcing bars of the wing, and the convex portions of the molding plate are fixed to the base portions of the pair of gripping members.

Alternatively, the mounting of the rail to the wing is performed using a gripping bracket and a spacer on the outer plate of the wing,
The gripping bracket is composed of a pair of gripping members that grip the rail, and the spacer and the exterior plate are interposed between the base of the pair of gripping members of the gripping bracket and the back surface of the exterior plate. Interference with reinforcement bars along the back of the
The base portion of the pair of gripping members and the exterior plate are fastened via the spacer.

  When this crash prevention equipment is installed in the wing vehicle, the worker who goes up on the floor of the box-type cargo bed and works at a high altitude is connected to the safety belt and safety block that is installed, and the inside of the box-type cargo bed is connected. Since it can move freely on the floor surface, it is possible to efficiently load and unload luggage.

  And even if the foot is stepped off from the floor surface of the box-type cargo bed, it is suspended in the air and avoids a collision with the ground, so safety is ensured regardless of the place where the cargo is loaded and unloaded.

  Further, when the worker steps off his / her foot, the weight and impact load of the worker act as an evenly distributed load perpendicular to the box-type cargo bed via the rail mounting portion, so that deformation of the box-type cargo bed is suppressed.

The perspective view which shows the state at the time of the high place work with the wing vehicle provided with the equipment for crash prevention concerning embodiment of this invention The disassembled perspective view which shows the 1st form of the attaching part to the wing of a rail same as the above The perspective view which shows the attachment state same as the above (4A) Transverse plan view, (4B) Front view, (4C) Side view in which the main part of the mounting portion in FIG. 3 is enlarged. (5A) Side view with wing open, (5B) Side view with wing closed The perspective view which shows the 2nd form of the attaching part to the wing of a rail same as the above (7A) Side view with wing open, (7B) Side view with wing closed Side view of a wing car showing the same operator falling from the floor of a box-type carrier Rear view of a wing car when a safety block is suspended from the ceiling of the building Side view of a wing vehicle when a safety block is suspended from a wire stretched on a box-type carrier

  DESCRIPTION OF EMBODIMENTS Hereinafter, a fall prevention facility for working at high places and a method for using the same according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, a wing wheel 51 provided with the crash prevention device is a van body truck having a box-type cargo bed 52, and is a portion extending from both side surfaces of the box-type cargo bed 52 to the center in the width direction of the top surface. Is a wing 53 that pivots up and down to open and close.

  The box-type loading platform 52 raises the front frame 52b and the rear frame 52c on the front and rear sides of the floor surface 52a, passes the center beam 52d between the upper end central portions of the front frame 52b and the rear frame 52c, and the wing 53 to the center beam 52d. It is attached via hinges, and tilt plates 52e are attached to both sides of the floor 52a via hinges.

  The wing 53 is provided with a plurality of reinforcing bars 55 extending in the front end direction from the base portion in the width direction center side of the top surface on the back surface of the exterior plate 54 covering the side surface of the box-type cargo bed 52 to the center portion in the width direction of the top surface. The box-type loading platform 52 is attached with an interval in the front-rear direction.

  As shown in FIG. 4 (4A), the reinforcing bar 55 has a cross section of a hat structure in which flange portions 55b are formed on both sides of the convex portion 55a, and the outer top surface of the convex portion 55a is the exterior plate 54. It is fixed on the back of the. A lining material is fixed to the flange portion 55b as necessary.

  As shown in FIG. 1, the crash prevention equipment provided in such a wing wheel 51 is movable so as not to be detached from the rail 1, which is attached to the ceiling portion of the box-type loading platform 52 so as to extend in the front-rear direction. And a safety block 23 suspended from the slider 2.

  The rail 1 prevents the wing 53 from rotating in the closing direction due to the total weight including the weight of the fall prevention equipment, the weight of the worker, and the impact load at the time of falling at the ceiling of the wing 53 of the box-type carrier 52. It is attached near the center beam 52d.

  Further, at both ends of the rail 1, a retaining metal fitting 3 for preventing the slider 2 from coming out of the end face as it moves is fitted and fixed. Although not shown, a stopper is provided at the end of the rail 1 near the rear end of the box-type carrier 52 to prevent the slider 2 from moving unexpectedly when the wing wheel 51 is suddenly braked. ing.

  As shown in FIGS. 2 to 4, the shape of the rail 1, which is a groove-shaped member, has lips 13 on the side plate portions 12 on both sides of the web 11, and groove openings 14 are provided between the opposite lips 13. Is formed. A guide protrusion 13 a is formed at the tip of the lip 13 toward the inside of the groove, and the side plate portions 12 on both sides slightly protrude from the lip 13.

  The slider 2 is a biaxial roller in which a triangular plate-shaped hooking connection portion 22 is supported by rollers 21 arranged on two axes. A safety block 23 is suspended in a hole formed in the protruding portion.

  As shown in FIG. 5 (5A), the opening 14 of the groove of the rail 1 faces downward with the wing 53 open, and the center beam with the wing 53 closed as shown in FIG. 5 (5B). It is oriented in the direction of 52d. The belt rope 24 urged in the retracting direction by the retractor of the safety block 23 and the hook 25 at the tip thereof are always suspended.

  In the first embodiment shown in FIGS. 1 to 5, the rail 1 is attached to the wing 53 at an appropriate interval in the front-rear direction of the box-type carrier 52 with respect to the reinforcing bar 55 along the back surface of the outer plate 54 of the wing 53. And using the molding plate 31 and the holding metal fitting 32.

  As shown in FIG. 4, the forming plate 31 is short and has a cross section of a hat structure in which flange portions 31b are formed on both sides of the convex portion 31a.

  The gripping bracket 32 is composed of a pair of gripping members 32a bent so as to grip the rail 1, and the pair of gripping members 32a are abutted at the base.

  The flange portions 31b on both sides of the molding plate 31 are overlapped with the flange portions 55b of the reinforcing bars 55 of the wings 53, and the deformation prevention seat plate 31c is assigned to the flange portions 55b, and bolts 33a inserted through these holes. The forming plate 31 is fixed to the reinforcing bar 55 by tightening the nut 33b as a so-called double nut.

  The top surfaces of the outer sides of the convex portions 31a of the forming plate 31 are overlapped with the base portions of the pair of gripping members 32a that grip the rail 1 and the gripping metal fittings 32 are abutted with each other. Is clamped as a so-called double nut, and the holding fitting 32 is fixed to the molding plate 31.

  Further, the rail 1 may be attached to the wing 53 as in the second embodiment shown in FIGS.

  In this mounting mode, the rail 1 is performed using the holding fitting 32 and the spacer 35 with respect to the exterior plate 54 of the wing 53. As in the first embodiment, the gripping metal fitting 32 is composed of a pair of gripping members 32 a that grip the rail 1, and a spacer 35 is interposed between the base of the pair of gripping members 32 a and the back surface of the exterior plate 54. Yes.

  A relatively long bolt 37a is inserted into the base portion of the pair of gripping members 32a and the exterior plate 54 through the holes, and the deformation prevention seat plate 36 is applied to the surface of the exterior plate 54. By tightening the nut 37 b as a so-called double nut, the holding fitting 32 is fixed to the exterior plate 54 via the spacer 35. In this attached state, the interference between the rail 1 and the reinforcing bar 55 on the back surface of the exterior plate 54 is avoided by the spacer 35.

  In addition, the rail 1 should just be divided | segmented into a length direction and connected with the connection metal fitting 4, as shown in FIG.

  As shown in FIG. 1, when carrying out the loading / unloading operation of the load G on the floor surface 52a of the box-type loading platform 52 by the wing wheel 51 provided with the above-described fall prevention equipment, the worker 40 is a harness type. Alternatively, a torso belt-type safety belt 41 is attached, and it goes up to the floor surface 52a of the box-type cargo bed 52. The hook 25 at the tip of the belt rope 24 of the safety block 23 is pulled by the pulling rope or a bar with a hook prepared separately. Pull down to connect the safety belt 41 and the hook 25.

  The operator 40 who makes such preparations and works at a high place makes the slider 2 freely movable in the front-rear direction with respect to the rail 1 and the belt rope 24 of the safety block 23 is appropriately lengthened from the retractor. Since it is fed out, it can move freely on the floor surface 52a, and the work of loading and unloading the luggage G can be performed efficiently.

  And, as shown in FIG. 8, even if the operator 40 steps off the floor surface 52a of the box-type loading platform 52, it is suspended in the air and can avoid collision with the ground. Regardless, safety is ensured.

  Further, when the operator 40 steps off his / her foot, the weight and impact load of the operator 40 act as an evenly distributed load perpendicular to the upper portion of the box-type cargo bed 52 via the mounting portion of the rail 1. The deformation of is suppressed.

  In the above embodiment, the rail 1 is attached to the ceiling portion of the wing 53 of the box-type cargo bed 52. However, the rail 1 may be attached to the lower surface of the center beam 52d of the box-type cargo bed 52.

  In this case, the wing 53 of the box-type loading platform 52 can be used not only for aluminum but also for a hood. However, in the construction, it is necessary to consider that the strength of the center beam 52d is not lowered by drilling or the like.

DESCRIPTION OF SYMBOLS 1 Rail 2 Slider 3 Stop fitting 4 Connecting metal 11 Web 12 Side plate part 13 Lip 13a Guide protrusion 14 Opening part 21 Roller 22 Engagement connection part 23 Safety block 24 Band rope 25 Hook 31 Molding plate 31a Protrusion part 31b Flange part 31c Seat plate 32 Grasping bracket 32a Grasping member 33a Bolt 33b Nut 34a Bolt 34b Nut 35 Spacer 36 Seat plate 37a Bolt 37b Nut 40 Worker 41 Safety belt 51 Wing wheel 52 Box-type loading platform 52a Floor 52b Front frame 52c Rear frame 52d Center beam 52e Plate 53 Wing 54 Exterior plate 55 Reinforcing bar 55a Protruding portion 55b Flange portion G Luggage

Claims (4)

The side of the box-type carrier (52) is provided in a wing wheel (51) that is a wing (53) that pivots up and down to open and close,
A rail (1) attached to the ceiling portion of the box-type carrier (52) so as to extend in the front-rear direction, a slider (2) movably fitted so as not to be detached from the rail (1), and the slider ( 2) consisting of a safety block (23) suspended from
With the safety belt (41) attached to the worker (40) connected to the safety block (23), the worker (40) can freely move on the floor surface (52a) inside the box-type cargo bed (52). A crash-prevention facility for work at height in a wing vehicle that can be moved easily.   The said rail (1) is attached to the ceiling part of the wing (53) from the side surface of the said box-type loading platform (52) to the top | upper surface, The fall prevention equipment in the high place work with a wing vehicle of Claim 1 . The rail (1) is attached to the wing (53) using a molding plate (31) and a gripping bracket (32) for the reinforcing bar (55) along the back surface of the exterior plate (54) of the wing (53). Done,
The molding plate (31) has a hat structure in which flange portions (31b) are formed on both sides of the convex portion (31a), and the gripping bracket (32) is a pair of gripping members that grip the rail (1). (32a)
The flange portions (31b) on both sides of the molding plate (31) are fixed to the reinforcing bars (55) of the wing (53), and the convex portions (31a) of the molding plate (31) are the pair of gripping members (32a). The equipment for preventing a crash in high-altitude work with a wing vehicle according to claim 2, which is fixed to a base portion of). The mounting of the rail (1) to the wing (53) is performed using a gripping bracket (32) and a spacer (35) for the exterior plate (54) of the wing (53),
The gripping bracket (32) includes a pair of gripping members (32a) that grip the rail (1), and the spacer (35) is connected to the base of the pair of gripping members (32a) of the gripping bracket (32) and the By interposing between the back surface of the exterior plate (54), interference between the rail (1) and the reinforcing bar (55) along the back surface of the exterior plate (54) is avoided,
The fall prevention equipment for high-altitude work in a wing vehicle according to claim 2, wherein a base portion of the pair of gripping members (32a) and the exterior plate (54) are fastened via the spacer (35).

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