JP2516844Y2 - Jig for hanging long materials - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is for hanging long materials used for unloading and unloading long materials such as reinforcing bars, steel materials, and steel pipes at construction sites. It relates to jigs.

[Conventional technology]

Needless to say, it is desirable to suspend and support long materials so that they are horizontal when unloading and unloading long materials such as rebar. Since the size of the temporary opening for unloading is limited by the structure of the building and the like, there are many cases in which a long material is suspended in an inclined posture, so-called diagonal suspension is required.

In such a case, conventionally, as shown in FIG. 7, a long material b is tightly bound with a loop-shaped trap formed by a slinging wire a, and a cloth bag d is fitted over the slanted lower end side of the long material b. In this state, one end of the sling wire a was lifted by a crane c or the like.

Therefore, at the time of unloading work by slanting suspension, the trap caused by the sling wire a loosens and the load collapses due to the shock when a part of the long material b collides with the edge of the temporary opening, the steel beam frame, the cross beam, and the like. If the cloth bag d is not fixed sufficiently, or if the material of the cloth bag d is deteriorated or broken, the long material b
It could lead to serious accidents such as the car sliding down.

Further, when unloading the long material b and pulling the long material b into the inside of the building from the side surface of the building, conventionally, as shown in FIG. The operator inserts the long material b into the building through the opening and pulls one end of the long material b inward into the building, and at the same time lowers the long material b with a crane and places it on the floor e. Is done in a way.

For this reason, it is reported that there is a considerable risk of pulling in the long material b, the timing is not matched, and the worker on the floor e is pulled by the long material b swinging to the outside of the building and crashes, resulting in an accident. .

[Problems to be solved by the device]

The present invention has been devised in view of the above-mentioned conventional drawbacks, and provides a jig for hanging a long material, which enables safe and easy loading and unloading work of a long material. The first purpose is to do.

Another object of the present invention is to prevent the hanging jig from moving unnecessarily due to inertia when hoisting the hanging jig on which a long material is placed from a horizontal posture on the floor to an inclined posture. This is to ensure the safety of the workers around the hanging jig.

[Means for solving the problem]

The technical measures taken by the present invention to achieve the above object are as follows.

That is, the jig for suspending a long material according to the present invention comprises a rectangular underframe on which a long material can be mounted and tightly bound, and an end regulating plate erected only at one longitudinal end thereof. Has and
A wheel that is rotatable around a horizontal axis perpendicular to the longitudinal direction of the underframe is provided at one end of the underframe on the side of the end regulating plate, and both sides in the width direction of the underframe and both ends in the longitudinal direction. On the side,
Respectively, connecting suspension wires of different lengths for suspending the underframe in an inclined posture in which the wheel is located at the inclined lower end, in the vicinity of the wheel and at an outer position in the underframe longitudinal direction with respect to the wheel, the A stopper is provided so that the underframe is positioned below the lowermost position of the wheel when the underframe is tilted at a tilt angle defined by the suspension wire or more.

[Action]

According to the above configuration, since the end portion regulation plate is formed only at one end portion in the longitudinal direction of the underframe, a long material longer than the length of the underframe can be placed on the underframe. When a long material placed on the underframe is tightly bound to the underframe using a chill hole, lever block, etc. Since the lengths of the wires are different from each other, one end of the underframe is first lifted by the hanging wire on the short side, and then the other end is lifted by the hanging wire on the long side. Then, in a state where both the suspension wires are fully extended, the underframe is in a predetermined inclined posture with the side having the end regulating plate facing downward. In this case, since the wheels are on the end regulating plate side of the underframe, the wheels roll on the floor as one end side of the underframe is lifted by the suspension wire on the short side, and the underframe smoothly moves to a predetermined inclined posture. Become.

Also, when lowering the underframe that has been lifted in an inclined position onto the floor, the wheels located at the bottom of the incline reach the floor, and the wheels roll on the floor when the underframe is lowered by a crane, etc. It will move to the posture.

In particular, according to the configuration of the present invention, even if one end of the underframe horizontally placed on the floor is rapidly hoisted by a crane or the like via the hoisting wire on the short side, a long hoisting wire and a short hoisting wire can be used. If the inertial movement exceeds the inclination angle defined by and, the stopper comes into contact with the floor surface and braking is applied.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show a jig A for hanging a long material.
In the figure, 1 is a pair of angle members arranged in parallel.
It is an underframe formed in a rectangular shape by 1a, 1a and channel materials 1b, which are erected at proper intervals between both angle materials 1a, 1a and fixed by means such as welding. An end regulating plate 2 is provided upright on only one end of the underframe 1 in the longitudinal direction so that a long material B longer than the underframe 1 can be placed. On both sides in the width direction of the underframe 1, a perforated plate 3a, which also serves as a reinforcing plate for the end regulating plate 2, a perforated plate 3b,
A plurality of locking portions 3 ... Consisting of U bolts 3c and the like are provided so as to be symmetrical at intervals at appropriate intervals in the longitudinal direction of the underframe 1. Then, a wire for binding, a chain, etc. 3'are locked to these locking portions 3 ..., so that the long material B placed on the underframe 1 can be tightly bound by using a chill hole, a lever block or the like. Is configured. At one end of the underframe 1 on the side of the end regulating plate 2, a pair of wheels 4, 4 which are rotatable about a horizontal axis perpendicular to the longitudinal direction of the underframe 1 are provided. Of the locking portions 3, ..., the locking portions 3 located at both ends in the longitudinal direction of the underframe 1 are for lifting the underframe 1 in an inclined posture in which the wheels 4, 4 are located at the inclined lower ends. Long 2
The types of suspension wires 5a ..., 5b ... Are connected. Hanging wire 5
The lengths of a ..., 5b ... Are constant, but the locking portions 3 ... Which connect them can be arbitrarily selected. That is, the inclination angle of the underframe 1 in the state of being suspended and supported is such that the suspension wires 5a, ..., 5b.
Depending on the length of the suspension wire 5a ..., 5b ...
The inclination angle of the underframe 1 can be changed by selecting the locking portions 3 ...

In the illustrated embodiment, the underframe 1 is defined by the suspension wires 5a ..., 5b ... in the vicinity of the wheels 4, 4 and outside the wheels 4, 4 in the longitudinal direction of the underframe 1. There is provided a pair of stoppers 6, 6 made of a channel material so as to be positioned below the lowermost end position of the wheels 4, 4 when inclined by a predetermined inclination angle or more. Although not shown, wheels may be provided on the other end side of the underframe 1.

Next, the unloading work and the unloading work of the long material using the above-described hanging jig A will be described.

For example, as shown in FIG. 4, the mountain stop wall 7 and the girder 8 ...
In the case of unloading the long material B onto the basement floor of the underground structure constructed by, first, the hanging jig A is placed on the floor 9 on the ground floor.
Is installed horizontally, and the long material B is placed on the underframe 1 in a state where one end of the long material B is in contact with the end regulating plate 2 and is bound in this state.

When the hanging wires 5a ..., 5b ... of the hanging jig A are hoisted by a crane C or the like, first, one end side of the underframe 1 is lifted by the hanging wire 5b on the short side, and then the other end side is hung on the long side. It will be lifted by the wires 5a .... Since the wheels 4 are located on the end regulating plate 2 side of the underframe 1, the wheels 4 roll on the floor 9 as one end of the underframe 1 is lifted by the hanging wire 5b on the short side.

Then, in a state where both the hanging wires 5a ..., 5b ... are fully extended, the underframe 1 of the hanging jig A is placed on the side where the end regulating plate 2 is present, as shown by a phantom line a in FIG. It becomes a predetermined tilted posture that is set downward.

In this tilted posture, the hanging jig A is lowered onto the floor 10 of the basement floor through the temporary opening as shown by the phantom line B.

In a state where the underframe 1 of the hanging jig A is suspended and supported in an inclined posture, the wheel 4 is located at the lowermost end, so that the floor 10 is, as shown in FIG. The wheels 4 contact the ground and roll on the floor 10, so that the underframe 1 smoothly moves to a horizontal posture and is placed on the floor 10.

Although not shown, a rope is tied to the end regulating plate 2 side of the underframe 1 in the hoisting jig A, and when the crane C or the like hoists or lowers it to the floor, a worker on the floor can The one end is pulled to assist the posture change of the underframe 1.

In the illustrated embodiment, since the stopper 6 is provided, the hanging wire of the hanging jig A mounted horizontally on the floor 9.
When 5a ..., 5b ... are rapidly hoisted by the crane C or the like, even if the underframe 1 tries to tilt more than the tilt angle defined by the hanging wires 5a, 5b ... due to inertia, FIG.
As shown by the phantom line in FIG.
A braking force is applied to prevent further inertial movement. Therefore, there is no possibility that the hanging jig A or the long material B may unexpectedly contact a nearby worker, and the safety is improved.

The operation of unloading the long material B using the hanging jig A is as follows.

First, as shown in FIG. 6 (a), the hanging load jig A to which the long material B is bound is lifted by a crane C or the like, and as shown in FIG. 6 (b), the hanging load jig is used. The lower end of the slope of A is inserted into the building through the opening on the side of the building. In this state, when the whole is lowered by the crane C or the like, the wheels 4 are grounded on the floor 11.

The wheels 4 roll inward of the building on the floor 11 as the hanging jig A descends, and as shown in FIG. 6C, the hanging jig A
The underframe 1 is suspended and supported only by the suspension wires 5b on the short side.

As shown in FIG. 6 (d), when the underframe 1 is placed on the floor 11, more than half of the hanging jig A is located inside the building. Further, in this state, the wheels 4 at the end of the underframe 1 are in contact with the floor 11, but at the outer end of the floor 11, the underframe 1
The lower surface of the floor is in contact with the floor 11 to prevent accidental movement outside the building. Therefore, a worker on the floor 11 can pull the hanging jig A into the building through the rope and easily and safely pull the long material B into the building.

[Effect of device]

Since the present invention has the above-described configuration, the following effects can be obtained.

By lifting the suspension wire connected to the underframe with a crane etc., the wheels roll on the floor and the underframe smoothly takes a predetermined tilted posture, and the underframe suspended and supported in the tilted posture is placed on the floor. At the time of lowering, the wheels can touch the floor and roll to make a smooth horizontal posture.

Therefore, unloading work and unloading work can be performed safely and easily.

In particular, according to the present invention, even if the one end of the underframe horizontally placed on the floor is hoisted rapidly by a crane or the like through the hoisting wire on the short side, a long hoisting wire and a short hoisting wire can be provided. When moving with inertia over the tilt angle specified by
Since the stopper comes into contact with the floor surface and brakes are applied, it is possible to prevent excessive inertial movement, and it is easy to ensure the safety of workers around.

[Brief description of drawings]

The drawings illustrate an embodiment of a jig for hanging a long material according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a side view, and FIG. 3 is a plan view. FIG. 4 is an explanatory view of the unloading work using the above-mentioned hanging jig, FIGS. 5 (a) and 5 (b) are action diagrams of the stopper, and FIGS. 6 (a) to 6 (d) are above. It is explanatory drawing of the unloading work which used the jig for hanging loads. 7 and 8 are explanatory views of a conventional example. A ... jig for hanging, B ... long material, 1 ... underframe, 2 ... end regulating plate, 4 ... wheel, 5a, 5b ... hanging wire, 6 ... stopper.

Claims (1)

(57) [Scope of utility model registration request] 1. An end portion of the underframe having a rectangular underframe on which a long material can be mounted and tightly bound, and an end regulating plate provided upright only at one longitudinal end thereof. A wheel which is rotatable around a horizontal axis center perpendicular to the longitudinal direction of the underframe is provided at one end on the side of the regulating plate, and the undercarriage is provided on both sides in the width direction of the underframe and on both sides in the longitudinal direction, respectively. The frame is connected to the suspension wires of different lengths for suspending the frame in an inclined posture in which the wheel is located at the inclined lower end, and the frame is in the vicinity of the wheel and at an outer position in the frame longitudinal direction with respect to the wheel, the frame is A jig for suspending a long material, which is provided with a stopper that is positioned below the lowermost end position of the wheel when tilted at a predetermined tilt angle or more defined by the suspension wire.