JP2017074161A - Safety belt for fall prevention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety belt for fall prevention capable of reducing a load on a body of an operator and prolonging the life for a period until a fire rescue team arrives at the site and the operator is rescued even when the operator is in a suspended state.SOLUTION: A safety belt for fall prevention includes: a waist belt to be attached to the waist of an operator; a lanyard including a rope or a strap having a first end part and a second end part, the first end part side being attached to the waist belt, and a hook attached to the second end part side of the rope or the strap; and a loop body for a foot hold connected to the lanyard and configured so that the operator can hook his or her foot.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safety belt for preventing a fall.

  Conventionally, a fall-preventing safety belt (hereinafter sometimes simply referred to as a safety belt) that an operator wears to prevent a fall when working at a high place has been disclosed (Patent Documents 1 to 3). 3). One type of safety belt is a safety belt called a waist belt type. The torso belt type safety belt includes, as a basic configuration, a torso belt to be worn on the operator's waist and a lanyard constructed by attaching a hook to one end of a rope or strap.

  The other end of the lanyard rope or strap is connected to the waist belt. The worker wears a waist belt type safety belt on his / her waist, and when working at a high place, the hook is attached to the object (single pipe or master rope spanned over the high place, or the structure of the building). Yes, it will be described below as mounting equipment). As a result, even if the operator steps off the platform and falls, the worker's body is suspended by the safety belt, so that a collision with the ground or the like is prevented.

JP-A-9-140815 Utility Model Registration No. 3077509 JP 2013-162811 A

  However, since the waist belt type safety belt receives an impact load of 7 KN or more on the abdomen at the time of crash, there is a high possibility of internal organ damage. Further, when the operator is suspended, the abdomen is loaded with the entire weight and the weight of the carried tool or the like on the waist belt having a width of about 5 cm. For this reason, if rescue by other workers or escape is not possible, there is a possibility of suffering unbearable pain until rescue by fire rescue, and breathing may become difficult due to abdominal pressure. It is said that it takes about 10 minutes for the fire rescue to arrive at the scene and more than 20 minutes for rescue.

  The present invention has been made in view of the above, and even if it becomes suspended, it can reduce the burden on the worker's body and extend the life until the fire rescue rescue arrives at the scene and is rescued. The purpose is to provide a safety belt for prevention.

In order to solve the above-described problems and achieve the object, the safety belt for preventing crashes according to the present invention,
(1) A torso belt for attachment to the waist of an operator, a rope or strap having a first end and a second end and the first end being attached to the torso belt; A lanyard including a hook attached to the second end portion side of the strap, and a leg ring connected to the lanyard and configured to allow the operator to hook his / her foot. And

  (2) The fall prevention safety belt according to (1) further includes a fixing member attached to the waist belt, and both the lanyard and the leg ring are connected to the fixing member. Preferably it is.

  (3) Further, in the safety belt for fall prevention of the above (1), there is provided a housing having a housing portion for housing the leg ring, and a mounting portion for mounting the housing body on the torso belt. The container has a footrest ring that is separated from the waist belt and housed in the housing portion when the mounting portion is subjected to a predetermined load. It is preferable to be configured to jump out of the housing portion.

In the safety belt for preventing crashes according to the present invention,
(4) A torso belt to be worn on the operator's waist, a rope or strap having a first end and a second end, the first end being connected to the torso belt, and the rope or A lanyard having a hook attached to the second end portion side of the strap, a fixing member attached to the waist belt, a third end portion and a fourth end portion, wherein the third end side is the A long body that is connected to a lanyard and is capable of constituting a footrest ring for the operator to hook his / her foot by fixing the fourth end side to the fixing member. To do.

  (5) Further, in the fall-preventing safety belt according to (4), the storage body has a storage portion for storing the elongated body, and has a mounting portion for mounting the storage body to the torso belt. It is preferable that the long body is accommodated in the container in a state where it can be pulled out from the outside.

In the safety belt for preventing crashes according to the present invention,
(6) A torso belt for attaching to the waist of the operator, a rope or strap having a first end and a second end and the first end being attached to the torso belt; A fixing device including a grip attached to the second end portion side of the strap, and a footrest wheel connected to the fixing device and configured to allow the operator to hook the foot. It is characterized by.

  According to the present invention, even when suspended, an operator can stand vertically by hooking his / her foot on the foot ring, and a part of the load applied to the worker's abdomen can be dispersed by the foot. The weight sharing applied to the worker's abdomen is reduced, and there is an effect that it is difficult for breathing to be difficult.

FIG. 1 is a schematic diagram of a safety belt according to the first embodiment. FIG. 2 is a diagram illustrating a state in which the worker is suspended. FIG. 3 is a diagram showing a state where an operator is hooking his / her foot on a leg rest ring. FIG. 4 is a schematic diagram of a safety belt according to the second embodiment. FIG. 5 is a diagram for explaining the safety belt shown in FIG. 4 in more detail. FIG. 6 is a diagram for explaining a safety belt according to the third embodiment. FIG. 7 is a schematic diagram of a safety belt according to the fourth embodiment.

  Hereinafter, embodiments of a safety belt for preventing a fall according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. Moreover, in each drawing, the same code | symbol is attached | subjected suitably to the same or corresponding element.

(Embodiment 1)
FIG. 1 is a schematic diagram of a safety belt according to the first embodiment. A safety belt 1 shown in FIG. 1 includes a trunk belt 2, a lanyard 3, a storage bag 5, a fixing member 6, a fastener 7, and a leg ring 8.

  The torso belt 2 is for an operator to wear the safety belt 1 on the waist, and includes a belt main body 2a, a front end stopper 2b, a buckle 2c, and a belt loop 2d. The worker can fix the belt body 2a through the buckle 2c and attach the safety belt 1 to his / her waist.

A fixing member 6 is attached to the waist belt 2 by a fastener 7. The fixing member 6 is an annular member also called a D ring, for example.
The lanyard 3 includes a rope 3a and a hook 3b. The rope 3 a has a first end 3 aa and a second end 3 ab, and the first end 3 aa side is attached to the waist belt 2 via a fixing member 6.
The hook 3b is attached to the second end 3ab side of the rope 3a. The hook 3b is used by an operator who wears the safety belt 1 to hook onto a mounting facility when working at a high place.
The storage bag 5 is a bag for storing the lanyard 3 and the like when not in use.

  The leg ring 8 is ring-shaped and is connected to the waist belt 2 via the fixing member 6. As the foot ring 8, for example, a strap, a rope, or a wire in a ring shape can be used. Thereby, the leg ring 8 is also connected to the lanyard 3 via the fixing member 6. As will be described later, the footrest ring 8 is configured such that an operator wearing the safety belt 1 can catch the foot. The leg ring 8 is 120 to 150 cm in length from the connected ring to the foot, depending on the height of the operator. Here, the length is a length when the leg wheel 8 is pulled, in other words, a value that is half the circumference. Further, the leg ring 8 has a strength that does not break due to the weight of the operator + the weight of the tool that is carried, and the material and thickness are selected in consideration of handling characteristics. The material is not particularly limited as long as it is a material usually used as a rope, such as nylon, polyethylene, polypropylene, polyester, vinylon, steel, cotton, hemp.

  As described above, the safety belt 1 is used by an operator to wear on his / her waist and hook the hook 3b on the installation facility when working at a high place.

  Next, a method of using the foot ring 8 when a worker wearing the safety belt 1 and working at a high place has stepped off from the scaffold and has become suspended. . FIG. 2 is a diagram illustrating a state in which the worker is suspended. FIG. 3 is a diagram showing a state where an operator is hooking his / her foot on a leg rest ring.

  As shown in FIG. 2, in a state where the worker O is suspended by the hook 3b on the mounting equipment S (single pipe in FIG. 2), the waist belt 2 having a width of the safety belt 1 of about 5 cm is attached to the abdomen of the worker O. Therefore, the weight of the entire weight and the tools carried is applied to the operator O, and a heavy physical burden that is unbearable to the worker O is applied.

  Therefore, as shown in FIG. 3, the worker O can stand vertically by hooking his / her foot on the footrest ring 8 provided in the safety belt 1, and a part of the load applied to the abdomen of the worker O is applied to the foot. Therefore, the burden on the abdomen of the worker O can be reduced. In addition to the fixing member 6, there is a case where a fixing member such as a D ring is attached to the body belt 2 of the safety belt 1, but part of the load applied to the waist of the worker O is effectively reduced. In order to share the foot, as shown in FIG. 1, the footrest ring 8 is connected to the fixing member 6 to which the lanyard 3 is connected. That is, both the lanyard 3 and the footrest ring 8 are the same fixing member. 6 must be connected.

  Further, the lower end of the footrest ring 8 is about 10 cm above the foot of the worker O when the worker O is standing up so that the worker O can easily step on the footrest body 8 by stepping on the foot. It is preferable to adjust the length of the foot ring 8 before the work so as to be positioned in the position. In addition, the worker O may adjust the length of the footrest ring 8 by forming a knot in the suspended state.

  In the case of FIG. 2, the posture of the worker O is in a “h” shape, and the head tends to be positioned below the body, so that there is a possibility that the time when the head becomes congested and unconscious becomes earlier. . However, as shown in FIG. 3, the operator O can stand vertically by hooking his / her foot on the leg ring 8 and the head can be easily positioned above the body. It can prevent the part from becoming congested, and can reduce the loss of consciousness.

  As described above, according to the safety belt 1 according to the first embodiment, it is possible to reduce the burden on the worker's body in the suspended state.

(Embodiment 2)
FIG. 4 is a schematic diagram of a safety belt according to the second embodiment. FIG. 5 is a diagram for explaining the safety belt shown in FIG. 4 in more detail. 5A is a view of FIG. 4 viewed in the direction of arrow A, and FIG. 5B is a view of FIG. 5A viewed in the direction of arrow B.

  A safety belt 1A shown in FIGS. 4 and 5 includes a waist belt 2, a lanyard 3A, a storage bag 5, a fastener 7A, a foot ring 8A, a winder 9, an annular member 10, and a shock absorber. 11 and a container 12. The body belt 2 and the storage bag 5 are the same as those in the safety belt 1 according to the first embodiment, and thus redundant description is omitted.

  The lanyard 3A includes a strap 3Aa and a hook 3Ab. The strap 3Aa has a first end 3Aaa and a second end 3Aab, and the first end 3Aaa side is attached to the waist belt 2 via a fastener 7A. A hook 3Ab is attached to the second end 3Aab side of the strap 3Aa.

  In the safety belt 1 </ b> A, the strap 3 </ b> Aa of the lanyard 3 </ b> A is wound up by the winder 9. The winder 9 has a built-in reel mechanism having a spiral spring. Thereby, the strap 3Aa of the lanyard 3A can be extended by pulling it out from the winder 9, and can be shortened by pressing the wind button of the winder 9 to wind it. Can do.

  The annular member 10 is pivotally supported by the winder 9 so as to be rotatable. The annular member 10 is used, for example, for hooking a hook for moving up and down during a lifting operation.

  In the safety belt 1A, the strap 3Aa of the lanyard 3A is accommodated in the shock absorber 11 by folding a part of its length as a spare length. As will be described later, the band-shaped strap that is folded and accommodated acts as a function to alleviate the impact of the operator's dropping.

  The winder 9 is integrally provided with a container 12. The housing body 12 includes a housing portion 12a for housing the leg ring 8A and two mounting portions 12b for mounting the housing body 12 to the waist belt 2.

  First, the footrest wheel 8A will be described. The leg ring 8 </ b> A is ring-shaped like the leg ring 8, and is connected to the lanyard 3 </ b> A via the container 12 and the winder 9. As the footrest ring 8A, for example, a strap, a rope, or a wire in a ring shape can be used in the same manner as the footrest ring 8.

  The accommodating portion 12a accommodates the footrest ring 8A in a folded or wound state. In addition, the opposite side (torso belt 2 side) of the accommodating part 12a from the winder 9 is opened. The mounting portion 12 b is provided so as to surround the waist belt 2 in the width direction of the waist belt 2. Note that the mounting portion 12 b also has a function for mounting the winder 9 to the body belt 2.

  A description will be given of a state where an operator who is wearing the safety belt 1A and is working at a high place has stepped off from the scaffolding and is suspended. When the worker steps off the platform and falls, a load of, for example, 7 KN or more is applied to the lanyard 3A. At this time, a predetermined load is also applied to the mounting portion 12b in which the container 12 and the winder 9 are mounted on the body belt 2. Then, the mounting portion 12 b is broken by the load, and the mounting portion 12 b of the container 12 is separated from the waist belt 2. Then, the footrest wheel 8A housed in the housing portion 12a jumps out of the opening of the housing portion 12a. Thereafter, the suspended worker can hang a part of the load applied to the abdomen of the worker with his / her leg by hooking his / her leg on the footrest ring 8 </ b> A that protrudes to the outside, thereby reducing the load applied to the abdomen. In order to achieve the above effect, the material and size of the mounting portion 12b are set so as to be destroyed when the worker falls.

  At the time of dropping, the mounting portion 12 b of the container 12 is separated from the trunk belt 2, and the winder 9 is also separated from the trunk belt 2 at the same time. At this time, the belt-shaped strap folded and accommodated in the shock absorber 11 is pulled out by the impact of the fall, and the impact of the fall of the operator is alleviated.

  As described above, according to the safety belt 1A according to the second embodiment, the load on the worker's body in the suspended state can be reduced, and the footrest wheel 8A is usually accommodated, so There is no risk of getting in the way.

(Embodiment 3)
FIG. 6 is a diagram for explaining a safety belt according to the third embodiment. A safety belt 1B shown in FIG. 6 replaces the lanyard 3 in the safety belt 1 of the first embodiment with 3B having an extended strap 3Ba having a function of absorbing a shock as a single unit, It has a configuration in which the leg ring is replaced with a configurable long body 13. Furthermore, the safety belt 1B includes a container 12B.

  The elongate body 13 consists of a wire comprised with the strand wire, and has the 3rd end part 13a and the 4th end part 13b. The long body 13 may be configured by a rope, a sling, or the like. The third end 13 a side of the long body 13 is attached to the waist belt 2 via a fixing member 6 attached to the waist belt 2. On the other hand, a hook 13 c is attached to the long end 13 on the fourth end 13 b side. Further, the first end 3Baa side of the strap 3Ba of the lanyard 3B is attached to the body belt 2 via a fixing member 6. Thus, the long body 13 is also connected to the strap 3Ba of the lanyard 3B through the fixing member 6. Similarly to the first embodiment, a hook is attached to the second end portion side of the strap 3Ba of the lanyard 3B.

  The accommodating body 12B includes an accommodating portion 12Ba that accommodates most of the length of the elongated body 13 other than the third end portion 13a side and the fourth end portion 13b side, and the accommodating body 12B for attaching the accommodating body 12B to the waist belt 2. And a mounting portion 12Bb. The accommodating portion 12Ba accommodates the long body 13 in a folded or wound state. Further, the long body 13 is housed in the housing body 12B in such a manner that a part on the fourth end portion 13b side and the hook 13c protrude from the housing body 12B and can be pulled out from the outside by pulling the hook 13c. .

  Here, the long body 13 is pulled out from the housing 12B, and the hook 13c is hooked on the fixing member 6 to fix the long body 13, so that a worker can put on his / her foot with the safety belt 1B. It is. Accordingly, when an operator who is wearing the safety belt 1B and is working at a high place removes his or her foot from the scaffolding and becomes suspended, the operator pulls out the long body 13 from the housing 12B and hooks 13c. By hooking onto the fixing member 6 and fixing, the leg ring can be configured. Thereafter, the suspended worker can hang a part of the load applied to the worker's abdomen with his / her leg by hooking his / her foot on the constructed leg wheel, thereby reducing the load on the body.

  Note that a fixing jig such as the hook 13c is not necessarily attached to the fourth end 13b side of the long body 13, and if the fixing jig is not attached, the fourth end 13b is not attached. By binding to the fixing member 6, it is possible to configure a leg ring.

  As described above, according to the safety band 1B according to the third embodiment, the burden on the worker's abdomen in the suspended state can be reduced, and the long body 13 for constituting the footrest wheel is usually used. Because it is housed, there is no risk of getting in the way of work.

  In the third embodiment, the long body 13 that can form the footrest ring body is housed in the housing body 12B. However, instead of the long body 13, the footrest wheel body 8 as in the first embodiment is used. You may make it accommodate. In the first and second embodiments, a long body that can constitute a footrest ring may be used instead of the footrest ring 8, 8A.

  Moreover, although the safety belt | band | zone which concerns on each said embodiment is provided with one lanyard, you may make it provide two lanyards. For example, when the safety belt 1 according to the first embodiment is described as an example, the other lanyard is attached to another fixing member provided separately from the fixing member 6 at a position separated from the fixing member 6 in the waist belt 2. Has been. In this way, if the safety belt has two lanyards, an operator who wears the safety belt can move the work place at a high place while alternately hooking and removing the hooks of the two lanyards on the installation equipment. Since it can be moved, at least one of the lanyard hooks can always be hooked on the mounting equipment during the movement. Therefore, movement can be performed easily and safely.

(Embodiment 4)
FIG. 7 is a schematic diagram of a safety belt according to the fourth embodiment. A safety belt 1C shown in FIG. 7 is obtained by adding a fixture 3C to the safety belt 1 shown in FIG. The fixture 3C includes a rope 3a, a grip 3Cb, and a hook 3Cc. The grip 3Cb is attached to the second end 3ab side of the rope 3a of the fixture 3C. The hook 3 </ b> Cc is attached to the first end 3 aa side of the rope 3 a of the fixture 3 </ b> C, and is attached to the trunk belt 2 via the fixing bracket 6. The grip 3Cb is, for example, a mounting facility S, and is configured to be able to grip a master rope that is a rope suspended along a wall from the roof of a building. The worker wearing the safety belt 1C shifts the position where the master rope is gripped by the grip 3Cb as the work progresses. Thereby, the worker can move and move in the vertical direction. A strap may be used in place of the rope 3a in the fixture 3C.

  Even when the worker wearing the safety belt 1C is suspended, the operator can stand vertically by hooking his / her foot on the foot ring 8 provided in the safety belt 1C, and the load applied to the worker's abdomen is reduced. Since the part can be dispersed with the foot, the burden on the worker's abdomen can be reduced.

  In addition, in 1 C of safety belts, the place where the leg ring 8 is attached is not limited to the fixing member 6. For example, the leg ring 8 may be attached to the annular portion of the grip 3Cb to which the second end 3ab of the rope 3a of the fixture 3C is attached.

  Further, the present invention is not limited by the above embodiment. What was comprised combining each component mentioned above suitably is also contained in this invention. Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspect of the present invention is not limited to the above-described embodiment, and various modifications can be made.

1, 1A, 1B, 1C Safety belt 2 Body belt 2a Belt body 2b End stop 2c Buckle 2d Belt thread 3, 3A, 3B Lanyard 3a Rope 3aa, 3Aaa, 3Baa First end 3ab, 3Aab Second end 3Aa, 3Ba Strap 3b, 3Ab, 13c, 3Cc Hook 3C Fixing tool 3Cb Grip 5 Storage bag 6 Fixing member 7, 7A Fastening tool 8, 8A Foot ring 9 Winding device 10 Annular member 11 Preliminary length accommodating part 12, 12B Container 12a , 12Ba housing portion 12b, 12Bb mounting portion 13 long body 13a third end portion 13b fourth end portion O worker S mounting equipment

Claims (6)

A torso belt for wearing on the operator's waist;
A lanyard comprising a rope or strap having a first end and a second end, the first end being attached to the waist belt, and a hook attached to the second end of the rope or strap When,
A leg ring that is connected to the lanyard and configured to allow the operator to hook a leg;
A safety belt for preventing a fall, comprising: A fixing member mounted on the waist belt;
2. The fall-preventing safety belt according to claim 1, wherein both the lanyard and the footrest ring are connected to the fixing member. A housing having a housing for housing the leg ring, comprising a housing having a mounting portion for mounting the housing on the torso belt;
In the case where a predetermined load is applied to the mounting portion, the mounting portion is separated from the waist belt, and the leg ring accommodated in the housing portion jumps out of the housing portion. The safety belt for preventing crashes according to claim 1, wherein the safety belt is configured as described above. A torso belt for wearing on the operator's waist;
A lanyard comprising a rope or strap having a first end and a second end, the first end being connected to the body belt, and a hook attached to the second end of the rope or strap When,
A fixing member attached to the waist belt;
It has a third end and a fourth end, the third end side is connected to the lanyard, and the operator hooks the foot by fixing the fourth end side to the fixing member. An elongate body that can constitute a leg ring for
A safety belt for preventing a fall, comprising: A housing having a housing for housing the elongated body, the housing having a mounting portion for mounting the housing on the torso belt;
The fall-preventing safety belt according to claim 4, wherein the elongated body is accommodated in the accommodating body in a state where it can be pulled out from the outside. A torso belt for wearing on the operator's waist;
A fixing comprising a rope or strap having a first end and a second end, the first end being attached to the waist belt, and a grip attached to the second end of the rope or strap. Ingredients,
A footrest wheel connected to the fixture and configured to allow the operator to hook a foot;
A safety belt for preventing a fall, comprising:

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