JP2020188982A - Hanger for harness-type fall prevention device - Google Patents

Abstract

To quickly and orderly suspend a harness-type fall prevention device, when not in use, in such a manner as to prevent rotation thereof and, if necessary, capable of hanging a waist belt for tools and a helmet along therewith.SOLUTION: A hanger H1 for hanging, when not in use, a harness-type fall prevention device A to which respective belts 61-65 such as shoulder, chest, waist, thigh and pelvis belts are sequentially connected, comprises: an inverse-T-shaped hanger body HB1 that includes left/right symmetrical hanging parts 2 formed at a lower end of a vertical base part 1; and a clamp tool C provided at an upper end of the vertical base part 1 of the hanger body HB1 and attaching the hanger body HB1 to a suspension pipe P. Belt coming-off prevention parts 3 for preventing the coming-off of the respective shoulder belts 61 are formed to face upward at both ends of the suspension part 2, with the two shoulder belts 61 constituting the harness-type fall prevention device A suspended.SELECTED DRAWING: Figure 2

Description

The present invention relates to a hanger for quickly and orderly suspending a harness-type fall-prevention device used for aerial work when not in use.

The "safety belt" worn by workers in aerial work such as the construction industry is stipulated in the Occupational Safety and Health Regulations established by the Ministry of Health, Labor and Welfare. The name of this "safety belt" has been changed to "fall prevention equipment" due to the revision of laws and regulations, and the "fall prevention equipment" that is approved for use is the "body belt type" that attaches a belt only to the body and shoulders. , Chest, torso, thigh, pelvis, etc. are formed in a series, and there is a "harness type" that is attached to the human body in the form of a harness (horse gear), but to ensure the safety of the human body (life). From the point of view, the "harness type" is recommended. In all types, a part of the "fall prevention device" is fixed to the surrounding fixed body via a safety rope called a lanyard, so that even if the worker crashes from the work place, the lanyard can be moved. It is suspended in the air to ensure the safety or life of the human body.

As shown in FIG. 1, the harness-type fall-prevention device A is not used because the shoulder, chest, torso, thigh, and pelvis belts 61, 62, 63, 64, and 65 are connected in series. Sometimes when removed from the human body, it becomes irregularly shaped and difficult to handle. In FIG. 1, 66 indicates a lanyard to which a hook for hooking on a surrounding fixed body is attached to the tip.

In general, aerial workers often wear a waist belt for tools to hold various tools necessary for work on their bodies, in addition to the harness-type fall prevention device described above, and to ensure safety. Of course, I wear a helmet for this purpose. For this reason, after finishing the work at a high place, the worker needs to set and store the harness type fall prevention device, the waist belt for the tool, and the helmet. As a hanger of a conventional harness type fall prevention device, the one disclosed in Patent Document 1 is known, but with this hanger, only the fall prevention device can be hung, and the hanger is hung in a suspended state. There was a problem that the hanger itself rotated with respect to the lowering bar and became entangled with another adjacent fall prevention device.

Japanese Unexamined Patent Publication No. 2004-41471

The present invention prevents the harness-type fall-prevention device from rotating when not in use so that it can be hung quickly and orderly, and if necessary, a waist belt for tools and a helmet can also be hung. The challenge is to make it possible at the same time.

In the invention of claim 1 for solving the above problems, belts such as shoulders, chest, torso, thighs, and pelvis are connected in a series, and each belt is applied to each part of the worker's body in a harness shape. A hanger for hanging a harness-type fall-prevention device that ensures the safety of the worker in the event of a crash when not in use.
An inverted T-shaped hanger body having a symmetrical hanging portion formed at the lower end of the vertical base and an inverted T-shaped hanger body provided at the upper end of the vertical base of the hanger body to attach the hanger body to the hanging bar. Consists of a hanger
Belt disengagement prevention portions that prevent the shoulder belts from coming off while the two shoulder belts constituting the harness-type fall prevention device are hung on both ends of the hanging portion are located upward. It is characterized by being formed toward the surface.

According to the invention of claim 1, the inverted T-shaped hanger body is attached to the hanging bar via an attachment body provided at the upper end of the vertical base of the hanger body, and a plurality of belts are connected in a series. When the two shoulder belts of the harness-type fall-prevention device connected to the hanger body are hung on both sides of the vertical base of the hanger body, the fall-prevention device having a complicated shape is described above. Each belt detachment prevention portion, which is hung on the hanger body and is provided at both left and right ends of the hanging portion of the hanger body, can prevent each shoulder belt of the fall prevention device from being displaced outward and detached.

A second aspect of the present invention is the invention of the first aspect, wherein the attachment body is a separate clamp tool that is non-rotatably and detachably attached to the hanging bar.
The hanger body is characterized in that an attached portion to which the clamp tool can be integrally attached is formed on the back surface side of the upper end portion of the vertical base portion.

According to the invention of claim 2, a clamp tool different from the hanger body is attached to the attached portion on the back surface side at the upper end portion of the vertical base portion of the hanger body, and the hanger body is attached to the clamp tool. It is attached to the hanging bar so that it cannot rotate. For this reason, the hanger body that suspends the harness-type fall prevention device does not rotate with respect to the suspension bar, so it is composed of only each belt corresponding to a plurality of parts of the human body and is suspended via the hanger. It can be prevented from getting entangled with the adjacent fall arrest device suspended from the hanger bar.

According to the invention of claim 3, in the invention of claim 1 or 2, a waist belt hook for hanging a tool waist belt is formed so as to project forward at the lower end of the vertical base of the hanger body. It is characterized by that.

High-altitude work in the construction industry requires various tools, and workers wearing harness-type fall-prevention equipment can hold various tools in addition to the fall-prevention equipment. I often wear a waist belt. According to the invention of claim 3, by hanging the tool waist belt on the waist belt hook formed so as to project forward at the lower end of the vertical base portion of the hanger body, the tool waist belt can be used as a harness. Since it is arranged so as to be displaced in the front-rear direction with respect to the type of fall-prevention device, it can be hung separately without being entangled with the fall-prevention device.

The invention of claim 4 is the invention of claim 3, wherein a helmet hook for hanging a helmet is formed so as to project forward at a central portion along the vertical direction of the vertical base of the hanger body. It is characterized by.

Workers who work at heights are obliged to wear a helmet. According to the invention of claim 4, in addition to a helmet hook, a harness-type fall-prevention device and a waist belt for tools, a helmet Since the above three points necessary for the work are all held by the worker at the time of wearing, the worker does not have to search for each one and can wear the helmet quickly.

The invention of claim 5 is characterized in that, in any of the inventions of claims 1 to 4, a name plate portion is provided at the upper end portion of the vertical base portion of the hanger body.

The storage room for work tools and work clothes, including harness-type fall prevention equipment, stores similar work tools and work clothes for many workers, and there is a risk of making a mistake when wearing them. According to the invention of claim 5, the above error can be easily prevented by recording the name of each person or the name of the company to which the hanger belongs on the name plate portion provided at the upper end of the vertical base portion of the hanger body.

According to the invention of claim 1, a harness-type fall-prevention device, which is troublesome to handle and has a large number of belts connected in a series, can be hung quickly and orderly without coming off to the side. According to the invention of claim 2, since the hanger is attached to the hanging bar without rotating, it is possible to prevent the fall-preventing device hung on the hanger from rotating and adjacent to the hanger. No longer entangles with another fall arrest device. According to the invention of claim 4, three points of a harness type fall prevention device, a waist belt for tools, and a helmet are hung together on the same hanger.

(A) and (b) are a front view and a rear view of a worker wearing a harness type fall prevention device A, respectively. (A) and (b) are a front view and a side view of a state in which a fall prevention device A, a tool waist belt B, and a helmet M are hung on a hanger H ₁ , respectively. It is a perspective view of the state where the hanger H ₁ is attached to the hanging pipe P. (A) and (b) are perspective views of the hanger H ₁ viewed from different directions. It is an exploded perspective view of the hanger body HB ₁ and the clamp tool C. (A) is a front view of the hanger H ₁ , and (b) is a sectional view taken along line XX of (a). (A) and (b) are perspective views of the hanger main body HB ₂ separated from the hanger H ₂ attached to the hanging pipe P and the clamp tool C, respectively. It is a perspective view of the hanger H ₃ attached to the hanging pipe P. It is a perspective view of the hanger H ₄ attached to the hanging pipe P.

Hereinafter, the present invention will be described in more detail with reference to a plurality of examples.

Hanger H ₁ of the first embodiment of the present invention is shown in Figures 2-6. The hanger H ₁ is composed of a resin hanger body HB ₁ having an inverted T shape and a metal clamp tool C for attaching the hanger body HB ₁ to the hanging pipe P. The hanger body HB ₁ is composed of a vertical base portion 1 vertically arranged and a hanging portion 2 symmetrically arranged at the lower end portion of the vertical base portion 1 in terms of overall shape and function. The belt disengagement prevention portions 3 are provided at both left and right ends of the hanger upward. The upper half of the vertical base 1 is formed wider than the lower half in order to secure the mounting plane 4 of the clamp tool C on the back surface side, and the hanging portion 2 is the vertical base 1. Since the lower end of the vertical base 1 is formed integrally in the lateral direction slightly above the lower end of the vertical base 1, the lower end of the vertical base 1 protrudes slightly downward as it is, and is below the vertical base 1. A waist belt hook F _{1, which} will be described later, is formed so as to project diagonally upward at the lower end portion that protrudes toward the bottom. The upper surface of the hanging portion 2 (the surface formed by the outer rib plate 42 described later) arranged symmetrically with respect to the vertical base 1 is lower on the side away from the side closer to the vertical base 1. It is inclined to. A horizontally long rectangular plate-shaped name plate portion 8 is provided on the upper portion of the vertical base portion 1.

On the other hand, the hanger main body HB ₁ has an outer rib plate for reinforcement having a certain width for reinforcing the flat plate substrate 41 on the entire outer peripheral edge of the flat plate substrate 41 having an inverted T-shaped flat plate shape as a whole from a concrete structural aspect. The flat plate substrate 41 is provided integrally so as to be perpendicular to the flat plate substrate 41 and the flat plate substrate 41 is arranged at the center in the width direction of the outer rib plate 42. In other words, the portion of the outer rib plate 42 having a constant width, which is half the width of the outer rib plate 42, protrudes from the flat plate substrate 41 on both the front and back sides. A large number of vertical rib plates 43 and horizontal rib plates 44 having a width half the width of the outer rib plate 42 are formed on the front and back surfaces of the flat plate substrate 41 except for the mounting plane 4 of the clamp tool C. The ends of one or both of the vertical rib plate 43 and the horizontal rib plate 44 intersecting each other at right angles, and are integrally connected to the inner surface of the outer rib plate 42. The outer rib plates 42, the vertical rib plates 43 and transverse rib plate 44 described above, by inverted T-plate-shaped flat substrate 41 is reinforced, because the hanger body HB ₁ is formed, the hanger body HB ₁ Is made of resin, so it is lightweight, but has a structure that enhances its overall strength (rigidity).

A waist belt hook F ₁ for hooking the tool waist belt B is formed so as to project obliquely upward at the protruding portion at the lower end of the vertical base portion ₁ . The base end portion of the hook plate 5 forming the waist belt hook F ₁ is integrated with the vertical rib plate 43 and the horizontal rib plate 44, and the hook rib plate 45 is located at the center of the back surface of the hook plate 5 in the width direction. Is provided to ensure the hanging strength of the waist belt B for tools. In exactly the same manner, at the lower end of the wide portion of the upper half of the vertical base 1, a helmet hook F ₂ for hooking the helmet M is formed integrally with the hanger body HB _{1 so as} to be obliquely upward. There is. The helmet hook F ₂ is reinforced with a hook rib plate 45 on the back surface side of the hook plate 6 whose base end is integrated with the vertical rib plate 43 and the horizontal rib plate 44. Further, a bolt for inserting a mounting bolt 21 protruding from the mounting surface 22 of the clamp tool C into a wide portion of the vertical base portion 1 of the flat plate substrate 41 and directly above the helmet hook F _2. The insertion hole 11 is formed, and the hexagon nut hole 7 is formed by surrounding the bolt insertion hole 11 on the surface of the flat plate substrate 41 with the surrounding rib plate 46. Note that FIG. 6B is illustrated by an irregular projection in which the rib itself is cross-sectioned.

As shown in FIG. 5B, the name plate portion 8 is configured by extending the flat plate substrate 41 upward and forming the extension portion into a horizontally long rectangular shape, and the name plate portion 8 is formed. Is supported on the back side thereof by a back support plate portion 9 in which the upper end portions of the outer rib plates 42 arranged in parallel are formed in a right-angled triangular shape.

On the other hand, the clamp tool C is an existing one, and has a base body 23 having a mounting flat surface 22 fixed to the mounted flat surface 4 of the flat plate substrate 41 of the hanger main body HB ₁ by a mounting bolt 21, and the base body. An arcuate clamp body 25 rotatably connected to the lower end of the back surface side of the 23 via a rotation pin 24, and a rotation pin 26 to the upper end of the base body 23 on the back surface side. It is composed of tightening bolts 27 that are liably connected, and the inner end surface is formed in an arc shape on the back surface side of the base body 23 and the inner surface side of the clamp body 25 so as to correspond to the outer diameter of the hanging pipe P. A pair of clamp plates 28, 29 are formed so as to face each other at a predetermined interval.

Then, as shown in FIGS. 5 and 6B, with the nut 31 inserted in the hexagon nut hole 7 on the front surface of the hanger H ₁ , the mounting flat surface 22 on the front surface of the base body 23 of the clamp tool C is formed. The mounting bolt 21 that is in close contact with the mounted flat surface 4 on the back surface of the hanger main body HB ₁ and projects from the mounting flat surface 22 of the clamp tool C is inserted into the bolt insertion hole 11 formed in the rib plate 42 of the hanger main body HB _1. In the inserted state, the attachment bolt 21 protruding toward the back surface side of the base body 23 is rotated and screwed into the nut 31 in the hexagon nut hole 7, and the vertical base 1 of the hanger body HB ₁ is screwed. The clamp tool C is integrally attached to the back side of the upper end portion of the.

Then, as shown in FIG. 6B, the clamp body 25 is placed with respect to the base body 23 in a state where the suspension pipe P is arranged between the clamp plates 28 and 29 of the base body 23 and the clamp body 25. Was rotated to bring it into close contact with the outer peripheral surface of the hanging pipe P, and in this state, the tightening bolt 27 was rotated with respect to the base body 23, and the tip portion thereof was formed on the clamp body 25. When the clamp 33 is inserted into the tightening groove 32 and screwed into the portion of the tightening bolt 27 protruding rearward from the tightening groove 32, the hanger H ₁ is hung non-rotatably with respect to the hanging pipe P. Can be lowered. In FIG. 6B, reference numeral 34 denotes a base plate portion whose outer surface is a mounting plane 22.

Then, when the harness type fall prevention device A is not used, as shown in FIG. 2, the pair of left and right shoulder belts 61 are moved to the left and right by the vertical base 1 in the hanging portion 2 of the hanger body HB _1. When hung on each of the two divided parts, the fall prevention device A in which a large number of belts are integrally connected has a symmetrical shape, and the middle part of the pair of shoulder belts 61 is the chest belt 62 and the body. The belts 63 are connected, and the annular thigh belts 64 are connected to the lower ends of the pair of shoulder belts 61, respectively, and the lower ends of the pair of shoulder belts 61 are connected to each other by the pelvic belt 65. for a pair of shoulder belts 61 holds the intervals corresponding to the length of the hanging hook 2 of the hanger body HB _1, the overall fall-arrest instrument a is the hanging hook 2 of the hanger body HB ₁ It is held in a hanging state. Each chest belt 62 is prevented from being displaced outward due to the presence of the belt detachment prevention portions 3 provided at both ends of the hanging portion 2.

Further, since the hanger body HB ₁ is attached to the hanging pipe P via the clamp tool C and does not rotate with respect to the hanging pipe P, a large number of hanger bodies HB ₁ are close to the same hanging pipe P. Even if the harness-type fall-prevention device A is suspended, the suspension arrangement posture of the fall-prevention device A, in which a large number of belts are integrally connected and hangs long downward, is unchanged. Adjacent fall prevention devices A do not get entangled with each other.

In addition, the waist belt B for tools and the helmet M used by the operator are hung on the hooks F ₁ and F ₂ provided on the hanger body HB ₁ , respectively, so that the harness type crash used for high-altitude work. The restraining device A, the waist belt B for tools, and the helmet M are hung on the same hanger body HB ₁ . Since the fall prevention device A, the waist belt B for tools, and the helmet M are arranged at positions shifted in the front-rear direction with respect to the hanger body HB ₁ , they do not get entangled with each other.

The hanger H _{2 of the} second embodiment of the present invention is shown in FIG. 7, and only the portion different from the hanger H _{1 of the} first embodiment will be described. The hanger H ₂ includes a hanger body HB ₂ made of a metal plate and the clamp tool C. In the hanger body HB ₂ , the vertical base portion 1'and the hanging portion 2'are formed of an integral metal plate, and the belt detachment prevention portions 3'are integrally formed at both ends of the hanging portion 2'. It is formed, and an L-shaped hook F ₃ made of a metal rod is projected forward at the lower end of the vertical base 1', and is fixed by welding on the back side. The upper end portion of the vertical base portion 1'is formed wider than the other portions in order to allow the base body 23 of the clamp tool C to be attached, and is formed at both ends of the wide portion 1'a in the width direction. , The fitting plate portions 12 fitted on both sides of the base body 23 of the clamp tool C are formed by being bent at a right angle to the back surface side. A bolt insertion hole 11'for inserting the attachment bolt 21 of the clamp tool C is formed in the wide portion 1'a.

The mounting flat surface 22 of the base body 23 of the clamp tool C is brought into close contact with the mounted surface on the back surface of the wide portion 1'a of the vertical base portion 1'of the hanger body HB ₂ , and is projected forward from the base body 23. When the wearing bolt 21 is inserted into the bolt insertion hole 11'formed in the wide portion 1'a, each fitting integrally formed on both ends of the wide portion 1'a in the width direction toward the back surface side. The plate portion 12 is fitted to both side surfaces of the base body 23 of the clamp tool C, and in this state, when the nut 31 is screwed into the mounting bolt 21, a hanger is attached to the hanging pipe P via the clamp tool C. The main body HB ₂ is attached so that it cannot rotate.

Similar to the hanger H _{1 of the} first embodiment, a pair of shoulder belts 61 constituting the harness type fall prevention device A are hung on the hanging portion 2'of the hanger main body HB ₂ , and the hook F ₃ is attached to the hook F ₃ . It is used by hanging the waist belt B for tools or the helmet M.

The hanger H _{3 of} Example 3 of the present invention is shown in FIG. In the hanger body HB ₃ , the vertical base 1 ″ is formed of a metal plate with respect to the hanger body HB _{2 of the} second embodiment, and the hanger body HB ₃ is welded to the mounting surface 22 on the front surface of the base body 23 of the clamp tool C by welding W. A hanging portion 2 ″ that has been fixed and has both ends bent upward to form a belt detachment prevention portion 3 ″ is fixed to the lower end portion of the vertical base portion 1 ″ by welding W, and the vertical base portion 1 ′ is fixed. A hook F ₃ made by bending a metal rod into an L shape is fixed to the lower end of the'by welding.

With the above configuration, the hanger body HB ₃ is non-rotatably attached to the hanging pipe P via the clamp tool C. Incidentally, hanging hook of fall-arrest instrument A harness-type with respect to the hanger body HB ₃ are according to the hanger body HB _2.

The hanger H _{4 of} Example 4 of the present invention is shown in FIG. The hanger body HB ₃ of the _third embodiment is formed by combining a metal plate and a metal rod, whereas the hanger body HB _{4 of the} fourth embodiment is different in that it is composed of only a metal rod. That is, in the hanger body HB ₄ , the hook F ₄ is formed by bending the lower end of the metal rod constituting the vertical base 1'''in an L shape, and the hook F ₄ has the horizontal portion 13 and the vertical portion 14. The central portion in the length direction of the hanging portion 2'''' in which the detachment prevention portion 3'''' is formed by bending both ends of the metal rod upward in the horizontal portion 13 is the horizontal portion. The structure is fixed to the portion 13 by welding W. The upper end of the vertical base 1''' made of a metal rod is fixed to the mounting plane 22 of the base body 23 of the clamp tool C by welding.

With the above configuration, the hanger body HB ₄ is non-rotatably attached to the hanging pipe P via the clamp tool C. The harness type fall prevention device A is hung on the hanger body HB _{4 according} to the hanger body HB ₂ .

The attachment body for attaching the hanger bodies HB _{1 to} HB ₄ to the hanging pipe P so as not to rotate is not limited to the clamp tool C having a separate structure, and the hanger bodies HB ₁ to HB ₁ to The configuration may be integrally formed with respect to HB ₄ .

A: Fall prevention equipment
B: Waist belt for tools
C: Clamping tool (attaching tool)
F _{1 to} F ₄ : Hook H _{1 to} H ₄ : Hanger HB _{1 to} HB ₄ : Hanger body
M: Helmet
P: Hanging pipe (hanging bar)
1: Vertical base
2: Hanging part
3: Belt detachment prevention part
4: Mounted plane
8: Name plate part

Claims (5)

Belts such as shoulders, chest, torso, thighs, and pelvis are connected in a series, and each belt is applied to each part of the worker's body in a harness shape to ensure safety in the event of a worker's crash. A hanger for hanging equipment when not in use
An inverted T-shaped hanger body having a symmetrical hanging portion formed at the lower end of the vertical base and an inverted T-shaped hanger body provided at the upper end of the vertical base of the hanger body to attach the hanger body to the hanging bar. Consists of a hanger
At both ends of the hanging portion, belt detachment prevention portions that prevent the shoulder belts from coming off while hanging the two shoulder belts constituting the harness-type fall prevention device are located upward. A harness-type fall-prevention device hanger that is characterized by being formed toward the surface. The attachment body is a separate clamp tool that is non-rotatably attached to the hanging bar and is detachably attached.
The harness-type fall-prevention device according to claim 1, wherein an attached portion to which the clamp tool can be integrally attached is formed on the back surface side of the upper end portion of the vertical base portion of the hanger body. clothes hanger. The harness-type crash according to claim 1 or 2, wherein a waist belt hook for hanging a tool waist belt is formed at the lower end of the vertical base of the hanger body so as to project forward. Hanger of restraint device. The harness-type fall arrest according to claim 3, wherein a helmet hook for hanging a helmet is formed at a central portion of the vertical base of the hanger body along the vertical direction so as to project forward. Equipment hanger. The hanger for a harness-type fall prevention device according to any one of claims 1 to 4, wherein a name plate portion is provided at an upper end portion of a vertical base portion of the hanger body.

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