JP5466783B1 - Support member for safety belt - Google Patents

Abstract

An object of the present invention is to provide a safety belt support member capable of easily pulling out a fall prevention rope from a fall prevention device installed at a high place.
A safety belt support member (1) includes two support bodies (20, 20), a support rope (30) installed on both supports (20, 20), and a slidably attached to the support rope (30). The fall prevention device 40 is provided. Furthermore, the pulley 51 attached to one upper part of both the support bodies 20 and 20 and the rope 53 for raising / lowering hung around the pulley 51 are provided. One end of the fall prevention rope 43 pulled out from the fall prevention device 40 is detachable from the lifting rope 53.
[Selection] Figure 1

Description

  The present invention relates to a safety belt support member.

  Retractor type fall prevention device (safety block) installed at a high place when an operator works on the upper part of the loading platform, such as when attaching / detaching a cover to / from the loading platform of a truck or loading / unloading a load on the loading platform. A fall-prevention rope pulled out from is attached to the worker's safety belt.

  Support members for supporting the worker wearing the safety belt include a support column standing on the ground, an arm member extending laterally from the upper end of the support column, and a fall prevention unit attached to the arm member. There exist some which are equipped with the instrument (for example, refer patent document 1).

In the above-described support member, the fall prevention device is installed at a high place, so when an operator uses a fall prevention rope, the operator hooks the tip of a long rod on the fall prevention rope. The fall prevention rope is pulled out from the fall prevention device.
Further, the extension rope can be hung from the fall prevention rope, and the operator can pull the extension rope from the fall prevention device by pulling the extension rope.

JP 2007-079881 A

When an operator pulls out a fall prevention rope from a fall prevention device using a long bar, there is a problem that the work becomes complicated.
When an operator pulls out a fall prevention rope from a fall prevention device using an extension rope, the extension rope may come into contact with the vehicle or the operator when the fall prevention rope is not used.

  An object of the present invention is to solve the above-described problems and to provide a support member for a safety belt that can easily pull out a fall prevention rope from a fall prevention device installed at a high place.

In order to solve the above-mentioned problems, the present invention is a safety belt support member comprising two support bodies, a support rope erected on both the support bodies, and a slidable attachment to the support ropes. A fall prevention device. Furthermore, a pulley attached to at least one upper part of the both supports, and a lifting rope hung around the pulley are provided. One end and the other end of the lifting rope are attached to a connecting portion, and one end of the fall-preventing rope pulled out from the fall-preventing device is detachable from the connecting portion of the lifting rope. is there.

Other configurations of the present invention include a safety belt support member, a support body, a fall prevention device attached to the support body, a pulley attached to an upper portion of the support body, and a hook on the pulley. And a turned lifting rope. One end and the other end of the lifting rope are attached to a connecting portion, and one end of the fall-preventing rope pulled out from the fall-preventing device is detachable from the connecting portion of the lifting rope. is there.

  In the present invention, an operator who uses the fall prevention rope operates the elevation rope to lower one end of the fall prevention rope attached to the elevation rope. Thereby, the fall prevention rope is pulled out from the fall prevention device. When one end of the fall prevention rope is lowered to an appropriate position, the fall prevention rope is removed from the lifting rope, and one end of the fall prevention rope is attached to the safety belt.

  When the operator finishes using the fall prevention rope, the worker attaches one end of the fall prevention rope to the lifting rope. Thereafter, when the operator operates the lifting rope to raise one end of the fall prevention rope, the fall prevention rope is wound around the fall prevention device.

  In the safety belt support member of the present invention, the operator can easily pull out the fall prevention rope from the fall prevention device installed at a high place by operating the lifting rope. Therefore, it is possible to improve workability when attaching / detaching the fall-preventing rope to / from the safety belt and to improve work safety.

It is the side view which showed the support member for safety belts of 1st embodiment. (A) is the figure which looked at the front side support body of 1st embodiment from back, (b) is the figure which looked at the back side support body of 1st embodiment from back. It is the perspective view which showed the support body and raising / lowering apparatus of the back side of 1st embodiment. It is the figure which showed the procedure which pulls out the fall prevention rope from a fall prevention instrument in 1st embodiment, (a) is a side view in the state where the connection part is arrange | positioned at the upper part of a support body, (b) is a connection part. The side view of the state arrange | positioned at the lower part of a support body, (c) is a side view of the state which attached the rope for fall prevention to the safety belt. It is the figure which showed the support member for safety belts of other embodiment, (a) is the figure which showed the structure which attached the fall prevention device to the arm member, (b) is the arm member and the raising / lowering apparatus on the both right and left sides of a support FIG.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the description of each embodiment, the same constituent elements are denoted by the same reference numerals, and redundant descriptions are omitted.

[First embodiment]
In the first embodiment, as shown in FIG. 1, a description will be given of a safety belt support member 1 used for removing a cover placed on an upper part of a loading platform T1 of a truck T.
In the following description, the front / rear / left / right direction corresponds to the front / rear / left / right direction shown in FIGS. 1 and 2.

  The safety belt support member 1 includes front and rear supports 10 and 20 erected on the ground A, a support rope 30 installed on both supports 10 and 20, and a fall prevention attached to the support rope 30. An instrument 40 and a lifting device 50 provided on the rear support 20 are provided.

As shown in FIG. 2A, the front support 10 includes a column 11 that is erected on the ground A and an arm unit 12 that is provided on the upper end of the column 11. The support | pillar 11 and the arm part 12 are formed of steel square tube members.
The column 11 is erected vertically to the ground A on the left side of the stop space S. Further, the arm portion 12 extends in the horizontal direction from the upper end portion of the support column 11 toward the stop space S side (right side). The height position of the arm portion 12 is above the loading platform T1 of the truck T stopped in the stop space S.

As shown in FIG. 2B, the rear support body 20 includes a support column 21 that is erected on the ground A and an arm member 22 that is provided at the upper end of the support column 21. The support column 21 and the arm member 22 are formed of a steel square tube member.
The column 21 is erected vertically to the ground A on the left side of the stop space S. The arm member 22 extends in the horizontal direction from the upper end portion of the support column 21 toward the stop space S side (right side).
The height of the support column 21 of the rear support 20 and the length of the arm member 22 are the same as the height of the support column 11 of the front support 10 (see FIG. 2A) and the length of the arm portion 12. Is the same.

  As shown in FIG. 1, the front and rear supports 10 and 20 are arranged at intervals in the front-rear direction. The positions of the front and rear support bodies 10 and 20 are set so that the front and rear support bodies 10 and 20 are arranged before and after the loading platform T1 when the truck T is stopped in the stop space S.

  The support rope 30 supports a fall prevention device 40 described later at a high place. The support rope 30 is constructed at the front ends of the arm members 12 and 22 of the front and rear supports 10 and 20 (see FIGS. 2A and 2B). The height of the support rope 30 is above the loading platform T1 of the truck T stopped in the stop space S.

The fall prevention device 40 is suspended from the support rope 30. The fall prevention device 40 is a retractor type fall prevention device (safety block) as shown in FIG.
The fall prevention device 40 includes a suspension pulley 41 attached to the support rope 30, a case 42 attached to the suspension pulley 41, and a fall prevention rope 43 accommodated in the case 42.

  The suspension pulley 41 is attached to the support rope 30 so as to be slidable in the extending direction of the support rope 30. By horizontally moving the suspension pulley 41 along the support rope 30, the entire fall prevention device 40 can be moved in the front-rear direction along the support rope 30.

Inside the case 42 is accommodated a drum (not shown) for feeding and winding a fall prevention rope 43 which will be described later. The drum is always biased in the direction of winding the fall prevention rope 43 by the spring member. That is, the fall prevention device 40 is configured to automatically wind the fall prevention rope 43 into the case 42.
Moreover, the fall prevention device 40 is configured to stop the rotation of the drum when the feeding speed of the fall prevention rope 43 becomes equal to or higher than a predetermined speed.

The fall prevention rope 43 is wound around a drum in the case 42. One end of the fall prevention rope 43 is connected to the drum, and the other end extends to the outside through the opening of the case 42.
On the other end of the fall prevention rope 43, a hook 43a with a latch is provided. The hook 43a is detachable from a connecting rope 55 described later.

As shown in FIG. 3, the lifting device 50 is a device for an operator to pull out the fall prevention rope 43 from the fall prevention device 40, and is provided on the rear support 20.
The elevating device 50 includes upper and lower pulleys 51 and 52 attached to the side surface of the support column 21, an elevating rope 53 hung around the pulleys 51 and 52, a connecting portion 54 provided on the elevating rope 53, It has.

  The upper and lower pulleys 51 and 52 are attached to the side surface of the support space 21 on the stop space S side (right side). The upper pulley 51 is supported on the upper portion of the column 21, and the lower pulley 52 is supported on the lower portion of the column 21. Both pulleys 51 and 52 are attached to the side surface of the support column 21 via mounting brackets 51a and 52a, and are rotatable about an axis along the front-rear direction.

  The lifting rope 53 is hung around the upper and lower pulleys 51 and 52. One end and the other end of the lifting rope 53 are attached to the connecting portion 54. One end and the other end of the lifting rope 53 are connected by the connecting portion 54, so that the lifting rope 53 is formed in an endless shape (annular shape).

  The connecting portion 54 is an annular member that connects one end and the other end of the lifting rope 53. The connecting portion 54 is disposed in a straight section on the stop space S side among the left and right straight sections of the lifting rope 53. The connecting portion 54 can be moved up and down along the support column 21 by rotating the lifting rope 53 forward and backward in the circumferential direction.

  Both ends of the connecting rope 55 are formed in an annular shape. One end of the connecting rope 55 is attached to the connecting portion 54. The other end of the connecting rope 55 is a part to which the hook 43a of the fall prevention rope 43 is attached.

Next, the procedure for the operator to use the safety belt support member 1 of the first embodiment will be described.
When the worker uses the fall prevention rope 43, as shown in FIG. 4B, the worker uses the straight section on the connecting portion 54 side (the straight section on the stop space S side) of the lifting rope 53. Is lowered to lower the connecting portion 54. Thereby, the hook 43 a of the fall prevention rope 43 is lowered together with the connecting portion 54, and the fall prevention rope 43 is pulled out from the fall prevention device 40.
Then, as shown in FIG. 4 (c), the operator removes the hook 43a of the fall prevention rope 43 from the connection rope 55 and removes the hook 43a when one end of the fall prevention rope 43 is lowered to an appropriate position. Attach to safety belt B.

  Thus, after attaching the fall prevention rope 43 to the safety belt B, as shown in FIG. 1, the worker works on the upper part of the loading platform T1. At this time, since the fall prevention device 40 can move in the front-rear direction along the support rope 30, the operator can work by moving in the front-rear direction on the loading platform T1.

When the operator finishes using the fall prevention rope 43, the hook 43a of the fall prevention rope 43 is removed from the safety belt B at the lower part of the rear support 20, as shown in FIG. 43a is attached to the connecting rope 55.
Thereafter, as shown in FIG. 4A, the worker lowers the straight section on the support column 21 side of the lifting rope 53 and raises the connecting portion 54 in the lower portion of the rear support 20.
As a result, the hook 43 a of the fall prevention rope 43 is raised together with the connecting portion 54, and the fall prevention rope 43 is wound into the case 42 of the fall prevention device 40. Therefore, it is possible to prevent the fall prevention rope 43 from coming into contact with the truck T (see FIG. 2B) in the stop space S and the worker.

  In the safety belt support member 1 as described above, as shown in FIG. 4B, the operator operates the elevating rope 53 to cause the fall prevention rope 40 to fall from the fall prevention device 40 installed at a high place. 43 can be pulled out easily. Further, as shown in FIG. 4A, the operator can easily wind the fall prevention rope 43 on the fall prevention device 40 by operating the lifting rope 53. Therefore, it is possible to improve workability when attaching / detaching the fall prevention rope 43 to / from the safety belt B and to improve work safety.

As mentioned above, although 1st embodiment of this invention was described, this invention is not limited to said 1st embodiment, In the range which does not deviate from the meaning, it can change suitably.
In the safety belt support member 1 according to the first embodiment, as shown in FIG. 3, the hook 43 a of the fall prevention rope 43 is attached to the connection portion 54 via the connection rope 55. The 43 hooks 43 a may be directly attached to and detached from the connecting portion 54 .

  In the safety belt support member 1 of the first embodiment, as shown in FIG. 1, the elevating device 50 is provided on the rear support body 20, but the front support body 10 or both front and rear support bodies 10, 20. An elevating device 50 may be provided.

  As shown in FIG. 3, the lifting device 50 of the first embodiment is provided with upper and lower pulleys 51, 52, but only the upper pulley 51 is provided, and the lifting rope 53 is hung around the upper pulley 51. May be.

  Although the support bodies 10 and 20 of 1st embodiment are equipped with the support | pillars 11 and 21 and the arm members 12 and 22, the shape of the support bodies 10 and 20 is not limited, For example, by a wall body You may comprise a support body.

[Second Embodiment]
As shown in FIG. 5A, the safety belt support member 2 of the second embodiment includes a support body 20, a fall prevention device 40 attached to the support body 20, and a lifting device provided on the support body 20. 50. In the second embodiment, the fall prevention device 40 is attached to the tip of the arm member 22 of the support 20.

  Since the safety belt support member 2 of the second embodiment has one support 20, the installation space for the safety belt support member 2 can be reduced. When the operator's work range is narrow, it is desirable to use the safety belt support member 2 of the second embodiment described above.

[Third embodiment]
In the safety belt support member 3 of the third embodiment, as shown in FIG. 5 (b), the arm members 22, 22 extend in the left and right directions from the upper end portion of the support column 21 of the support body 20. And the fall prevention device 40 is attached to the front-end | tip part of the left and right arm members 22 and 22, respectively. In addition, lifting devices 50 are respectively provided on the left and right side surfaces of the column 21. In this configuration, the stop space S can be provided on both the left and right sides of the support 20.

1 Safety belt support member (first embodiment)
2 Safety belt support member (second embodiment)
3 Safety belt support member (third embodiment)
DESCRIPTION OF SYMBOLS 10 Front support body 11 Support | pillar 12 Arm member 20 Rear support body 21 Support column 22 Arm member 30 Support rope 40 Fall prevention device 41 Hanging pulley 42 Case 43 Fall prevention rope 43a Hook 50 Lifting device 51 Upper pulley 52 Below Side pulley 53 Elevating rope 54 Connecting portion 55 Connecting rope A Ground B Safety belt S Stop space T Truck T1 Loading platform

Claims (2)

Two supports,
A support rope erected on both supports,
A fall prevention device slidably attached to the support rope;
A pulley attached to the upper part of at least one of the supports;
An elevating rope hung around the pulley, and
One end and the other end of the hoisting rope are attached to the connecting portion,
One end of the fall prevention rope pulled out from the fall prevention device is detachable from the connecting portion of the elevating rope. A support;
A crash prevention device attached to the support;
A pulley mounted on top of the support;
An elevating rope hung around the pulley, and
One end and the other end of the hoisting rope are attached to the connecting portion,
One end of the fall prevention rope pulled out from the fall prevention device is detachable from the connecting portion of the elevating rope.

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