Full harness type fall arrest device

Abstract

To provide a full harness type fall arrest apparatus excellent in workability.SOLUTION: A desirable full harness type fall arrest apparatus 2 has a shoulder belt 12, a thigh belt 14, a belt holder 30 arranged on the rear face, and a tool rack 32 arranged on the front face; and includes a connection tool 22 arranged between the shoulder belt 12 and the thigh belt 14. Preferably, the full harness type fall arrest apparatus 2 further includes a waist belt 6. The belt holder 30 has a pair of engaging pawls to be engaged with a width direction end of the waist belt 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This specification discloses a full harness type fall arrest device. [Background technology]

[0002] Patent Document 1 discloses a connection structure between a harness-type safety belt and a waist belt. This connection structure includes a waist belt connector that is attached between a shoulder belt and a thigh belt, and an engagement body to which the waist belt is detachably attached.

[0003] In this connection structure, an insertion hole for the shoulder belt is formed in the upper part of the waist belt connector, and an insertion hole for the thigh belt is formed in the lower part of the waist belt connector. A connection hole is formed between these insertion holes. The engaging part of the engaging body is inserted into this connection hole to engage the waist belt connector and the engaging body. This engagement allows the engaging body to be detachably attached to the waist belt connector. This connection structure makes it easy for a worker to fasten the waist belt to the harness-type safety belt while wearing the harness-type safety belt. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP2013-27523A Summary of the Invention [Problem to be solved by the invention]

[0005] A worker wearing this harness-type safety belt can easily take out and store tools and parts by attaching a waist bag or the like to his / her waist. In the above-mentioned connection structure, the waist belt connector is located on the waist of the worker. A connection hole into which the engaging part of the engaging body is inserted is formed in the center of the waist belt connector. The engaging body is located in the center of this waist belt connector. A waist bag or the like cannot be attached to the center of this waist belt connector. This connection structure has room for improvement in terms of worker operability.

[0006] The applicant's intention is to provide a full harness type fall arrest device that is easy to use. [Means for solving the problem]

[0007] A preferred full body harness type fall arrest device is: Shoulder belt and Leg belt and A connector having a belt holder arranged on the back surface and a tool hanger arranged on the front surface, the connector being arranged between the shoulder belt and the thigh belt; Equipped with. Effect of the Invention

[0008] This full harness type fall arrest device is equipped with a connector having a belt holder arranged on the back side and a tool hanger arranged on the front side. With this full harness type fall arrest device, the tool hanger arranged on the front side makes it easy to work with. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a full harness type fall arrest device according to one embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is an explanatory diagram of the connector in a state where the pliers holder attached to the full harness type fall arrest device of FIG. 1 has been removed. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5A] FIG. 5A is a front view showing an attachment tool that enables the pliers holder of FIG. 1 to be attached to and detached from a full harness type fall arrest device. [Figure 5B] FIG. 5B is a side view of the fixture of FIG. 5A. [Figure 6A] FIG. 6A is an explanatory diagram showing the mounting tool of FIG. 5A in use. [Figure 6B]FIG. 6B is an explanatory diagram showing another state of use of the mounting tool of FIG. 5A. [Figure 7] FIG. 7 is a front view showing a full harness type fall arrest device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, preferred embodiments will be described in detail with reference to the drawings as appropriate.

[0011] 1 includes a full harness 4, a waist belt 6, a pair of pliers holders 8, and a waist bag 10. In the following description, the full harness type fall arrest device 2 is also simply referred to as the fall arrest device 2.

[0012] The full harness 4 has a pair of shoulder belts 12, a pair of thigh belts 14, a chest belt 16, a connector 18 as a back connector, a D-ring 20, a pair of connectors 22 as a pair of waist connectors, and a pair of connectors 24 as a pair of chest connectors.

[0013] One shoulder belt 12 extends diagonally upward from one connector 22, is folded back at the top, and extends to the other connector 22. The other shoulder belt 12 extends diagonally upward from the other connector 22, is folded back at the top, and extends to one connector 22. A connector 18 and a D-ring 20 are attached to the portion where the pair of shoulder belts 12 intersect.

[0014] Each thigh belt 14 includes a first thigh belt 14A and a second thigh belt 14B extending downward from the connector 22, a tongue plate 14C attached to the first thigh belt 14A, and a buckle body 14D attached to the second thigh belt 14B. The first thigh belt 14A and the second thigh belt 14B can be connected and disconnected by the tongue plate 14C and the buckle body 14D.

[0015] The chest belt 16 has a first chest belt 16A extending from one connector 24 attached to the other shoulder belt 12, and a second chest belt 16B extending from the other connector 24 attached to the one shoulder belt 12. The chest belt 16 further has a tongue plate 16C attached to the first chest belt 16A and a buckle body 16D attached to the second chest belt 16B. The first chest belt 16A and the second chest belt 16B can be connected and disconnected by the tongue plate 16C and the buckle body 16D.

[0016] When the worker is wearing the full harness 4, the shoulder belts 12 are folded back around the worker's shoulders. The connectors 18 and the D-rings 20 are located on the worker's back. The tongue plate 16C and the buckle body 16D are connected, and the chest belt 16 is located on the worker's chest. The tongue plate 14C and the buckle body 14D are connected, and the thigh belts 14 are located around the worker's thighs. In this state, the connectors 22 are located on the sides of the worker's waist.

[0017] The pliers holder 8 is a tool bag that stores tools, including but not limited to pliers. The tool bag 10 is a bag that stores tools, wires, metal fittings, etc. The pliers holder 18 is detachably attached to the connector 22. The tool bag 10 has a belt hole through which the waist belt 6 is passed. In this way, the tool bag 10 is attached to the waist belt 6. When the worker is wearing the full harness 4, the waist belt 6 is wrapped around the worker's waist. In this state, the pliers holder 8 is located on the side of the worker's waist. The tool bag 10 is located behind the worker's waist.

[0018] 2, the connector 22 has an upper plate 26, a lower plate 28, a belt holder 30, and a tool hanger 32. The shoulder belt 12 is connected to the upper plate 26. The thigh belt 14 is connected to the lower plate 28.

[0019] The belt holder 30 has a main body 30A, a rotation stopper 30B, an engagement claw 30C, and an engagement claw 30D. The rotation stopper 30B protrudes from the main body 30A and is inserted into the rotation stopper hole 26C of the upper plate 26. The engagement claw 30C extends downward from the upper end of the main body 30A. The main body 30A and the engagement claw 30C hold one end of the waist belt 6 in the width direction. The engagement claw 30D extends upward from the lower end of the main body 30A. The main body 30A and the engagement claw 30D hold the other end of the waist belt 6 in the width direction. In this way, the engagement claws 30C and 30D engage with the width direction ends of the waist belt 6. As a result, the waist belt 6 is attached to the belt holder 30.

[0020] The pliers holder 8 has a container 34 and a removable tool 36 attached to the container 34. The removable tool 36 engages with the tool hanger 32. Through this engagement, the pliers holder 8 is attached to the connector 22. Note that what is attached to the connector 22 here is not limited to the pliers holder 8. For example, a tool bag 10 may be attached to the connector 22 via the removable tool 36.

[0021] Here, the configuration of the connector 22 will be described with reference to Figures 3 and 4. Figure 3 shows the connector 22 to which the shoulder belt 12 and the thigh belt 14 are connected. Figure 4 shows a cross section of the connector 22 taken along line IV-IV in Figure 3. As shown in Figure 4, the connector 22 has a bearing 38 in addition to the upper plate 26, the lower plate 28, the belt holder 30, and the tool hanger 32. The front surface 22F of the connector 22 includes the front surface 26A of the upper plate 26 and the front surface 28A of the lower plate 28. The back surface 22B of the connector 22 includes the back surface 26B of the upper plate 26 and the back surface 28B of the lower plate 28. When the fall arrest device 2 is worn by a worker, the front surface 22F of the connector 22 is the outer surface, and the back surface 22B is the inner surface.

[0022] As shown in Fig. 4, the tool hanger 32 has a head 32A, a neck 32B extending from the head 32A, and a shaft 32C extending from the neck 32B. The outer diameter of the head 32A is larger than that of the neck 32B. The upper plate 26, the lower plate 28, and the main body 30A of the belt holder 30 are connected through the shaft 32C. A bearing 38 is inserted into the shaft hole 28C of the lower plate 28. The lower plate 28 is rotatable about the shaft 32C via the bearing 38. This allows the lower plate 28 to rotate with respect to the upper plate 26.

[0023] The upper plate 26 has a rotation prevention hole 26C. A rotation prevention member 30B of the belt holder 30 is inserted into this rotation prevention hole 26C. This prevents the belt holder 30 from rotating relative to the upper plate 26. Furthermore, this rotation prevention member 30B penetrates the upper plate 26 and protrudes from the surface 26A of the upper plate 26. The rotation prevention member 30B protruding from the surface 26A restricts the rotation range of the lower plate 28.

[0024] Next, the configuration of the attachment / detachment tool 36 of the pliers holder 8 will be described with reference to Figures 5A and 5B. Figure 5A shows a front view of the attachment / detachment tool 36, and Figure 5B shows a side view of the attachment / detachment tool 36. The attachment / detachment tool 36 has a main body plate 40, an engagement pin 42, a locking plate 44, a pin 46, and a spring 48 as an elastic body. The main body plate 40 is formed with a through hole 40A and an elongated hole 40B extending continuously to the through hole 40A. The double-headed arrow D1 in Figure 5A indicates the width of the through hole 40A. The double-headed arrow D2 in Figure 5A indicates the width of the elongated hole 40B. This width D2 is smaller than the width D1.

[0025] The engagement pin 42 is supported by the body plate 40. The engagement pin 42 extends along the surface of the body plate 40, perpendicular to the long hole 40B. The engagement pin 42 is passed through the through hole 34A of the container 34, and the container 34 is attached to the attachment / detachment tool 36 (see FIG. 2).

[0026] A locking hole 44A is formed in the locking plate 44. The double-headed arrow D3 in FIG. 5A indicates the width of the locking hole 44A. The locking plate 44 is attached to the body plate 40 via a pin 46. The locking plate 44 is pressed against the body plate 40 by a spring 48. This locking plate 44 is in a locking position pressed against the body plate 40. In this locking position, the locking hole 44A overlaps with the long hole 40B of the body plate 40.

[0027] 6A, the locking hole 44A is in a release position away from the main body plate 40 against the biasing force of the spring 48. In this state, the head 32A of the tool hanger 32 is passed through the through hole 40A of the main body plate 40. The through hole 40A is formed with a size that allows the head 32A to pass through.

[0028] In Fig. 6B, the locking hole 44A is in the locking position as in Fig. 5B. In this state, the neck 32B of the tool hanger 32 is located in the long hole 40B of the main body plate 40. The long hole 40B is formed with a size that allows the neck 32B of the tool hanger 32 to move along the long hole 40B. On the other hand, the long hole 40B is formed with a size that does not allow the head 32A to pass through. In this state, the head 32A of the tool hanger 32 is passed through the locking hole 44A of the locking plate 44. The locking plate 44 prevents the tool hanger 32 from moving from the long hole 40B to the through hole 40A.

[0029] In this fall arrest device 2, the connector 22 is disposed between the shoulder belt 12 and the thigh belt 14. When the worker wears this fall arrest device 2, the connector 22 is located on the side of the worker's waist. Since the connector 22 is disposed between the shoulder belt 12 and the thigh belt 14, it is possible to prevent the connector 22 from shifting out of position. Since the connector 22 has a tool hanger 32 on the front surface 22F, tools and the like can be attached to the front surface 22F of the connector 22. In addition, since the pliers holder 8 can be attached to the side of the worker's waist, which allows for good workability, the worker can easily insert and remove pliers from the pliers holder 8. Although the pliers holder 8 is attached in the fall arrest device 2, other tool holders or a tool bag may be attached to the tool hanger 32.

[0030] This connector 22 has a belt holder 30 arranged on its back surface 22B. As a result, the connector 22 has a tool hanger 32 on its front surface 22F, and the waist belt 6 is attached to the fall arrest device 2. The waist belt 6 is prevented from shifting in position relative to the fall arrest device 2. For example, as with this fall arrest device 2, even in a state where a waist bag 10 is attached to the waist belt 6, the waist belt 6 is prevented from shifting in position.

[0031] The belt holder 30 has an engagement claw 30C and an engagement claw 30D that engage with the width direction end of the waist belt 6. The waist belt 6 is attached to the belt holder 30 by engaging the engagement claw 30C and the engagement claw 30D with the waist belt 6. The waist belt 6 can be attached to and detached from the belt holder 30 by passing it between the engagement claw 30C and the engagement claw 30D. When attaching the waist belt 6 to the belt holder 30, it is not necessary to pass the waist belt 6 through the belt hole. This eliminates the need to remove the waist bag 10 attached to the waist belt 6 when attaching or removing the waist belt 6. The belt holder 30 makes it easy to attach and remove the waist belt 6. From this viewpoint, it is preferable that the belt holder 30 has the engagement claw 30C and the engagement claw 30D.

[0032] The connector 22 has an upper plate 26 to which the shoulder belt 12 is attached, and a lower plate 28 to which the thigh belt 14 is attached and which is rotatable relative to the upper plate 26. The belt holder 30 is rotatable relative to the lower plate 28. This prevents the fall arrest device 2 from interfering with smooth movement when a worker wearing the fall arrest device 2 bends forward, etc. This fall arrest device 2 is comfortable to wear. From this perspective, it is preferable that the lower plate 28 is rotatable relative to the upper plate 26. It is also preferable that the belt holder 30 is rotatable relative to the lower plate 28.

[0033] In this fall arrest device 2, the belt holder 30 is prevented from rotating by the upper plate 26. The belt holder 30 is prevented from rotating relative to the upper plate 26 as the lower plate 28 rotates relative to the upper plate 26. This prevents the waist belt 6 from shifting out of position relative to the shoulder belt 12. From this perspective, it is preferable that the belt holder 30 is prevented from rotating by the upper plate 26.

[0034] In this fall arrest device 2, the upper plate 26 has a rotation prevention hole 26C, and the belt holder 30 has a rotation prevention device 30B that is inserted into the rotation prevention hole 26C. The rotation prevention device 30B is inserted into the rotation prevention hole 26C to prevent the belt holder 30 from rotating relative to the upper plate 26. Furthermore, the rotation prevention device 30B restricts the rotation range of the lower plate 28. The shoulder belt 12 attached to the upper plate 26 is prevented from being damaged by the lower plate 28. In addition, the thigh belt 14 attached to the lower plate 28 is prevented from being damaged by the upper plate 26. From this viewpoint, it is preferable that the rotation range of the lower plate 28 is restricted relative to the upper plate 26.

[0035] The material of the upper plate 26 and the lower plate 28 is not particularly limited, but is preferably metal from the viewpoint of strength. The material of the belt holder 30 is not particularly limited, but is preferably resin. The belt holder 30 made of resin is easy to mold and can be manufactured more inexpensively than metal. By making the belt holder 30 having the rotation stopper 30B out of resin, which is easy to mold, there is no need to provide the metal upper plate 26 and lower plate 28 with a rotation stopper, and the processing of the metal upper plate 26 and lower plate 28 is accordingly easier. This reduces the manufacturing cost of the fall arrest device 2. From this viewpoint, when the upper plate 26 and lower plate 28 are made of metal, it is preferable that the belt holder 30 is made of resin.

[0036] In this fall arrest device 2, the anti-rotation stopper 30B protruding from the anti-rotation hole 26C restricts the rotation range of the lower plate 28. This anti-rotation stopper 30B serves both as a rotation stopper for the belt holder 30 and a stopper that restricts the rotation range of the lower plate 28. In this fall arrest device 2, it is not necessary to separately provide a rotation stopper for the belt holder 30 and a stopper that restricts the rotation range of the lower plate 28. From this perspective, it is preferable that the anti-rotation stopper 30B protruding from the anti-rotation hole 26C restricts the rotation range of the lower plate 28.

[0037] 7 shows a full harness type fall arrest device 52 according to another embodiment. In the following description, the full harness type fall arrest device 52 is also simply referred to as the fall arrest device 52. The above-mentioned fall arrest device 2 includes a waist belt 6, a pair of pliers holders 8, and a waist bag 10, but this fall arrest device 52 does not include the waist belt 6, the pair of pliers holders 8, and the waist bag 10. The other configurations of the fall arrest device 52 are the same as those of the fall arrest device 2.

[0038] This fall arrest device 52 also includes the connector 22, so the pliers holder 8 can be attached at a position where the pliers can be easily inserted and removed without wearing the waist belt 6. The waist belt 6 can be easily attached and removed because of the belt holder 30. The fall arrest device 52 includes the connector 22 having the lower plate 28 that can rotate relative to the upper plate 26, so the fall arrest device 52 is prevented from interfering with the smooth movement of the worker. This fall arrest device 52 is comfortable to wear. In this fall arrest device 52, the connector 22 also prevents the shoulder belt 12 from being damaged by the lower plate 28, and prevents the thigh belt 14 from being damaged by the upper plate 26. The rotation stopper 30B serves both as a rotation stopper for the belt holder 30 and as a stopper that limits the rotation range of the lower plate 28.

[0039] [Disclosure items] Each of the following sections is a disclosure of a preferred embodiment.

[0040] [Item 1] A shoulder strap 12; Thigh belt 14, The belt holder 30 is disposed on the back surface, and the tool holder 32 is disposed on the front surface. The connector 22 is disposed between the shoulder belt 12 and the thigh belt 14. A full harness type fall arrest device 2.

[0041] [Item 2] Further provided with a waist belt 6, A full harness type fall arrest device 2 as described in item 1, in which the belt holder 30 has engaging claws 30C, 30D that engage with the widthwise ends of the waist belt 6.

[0042] [Item 3] The connector 22 has an upper plate 26 to which the shoulder belt 12 is attached, and a lower plate 28 to which the thigh belt 14 is attached and which is rotatable relative to the upper plate 26. A full harness type fall arrest device 2 as described in item 1 or 2, wherein the belt holder 30 is rotatable relative to the lower plate 28.

[0043] [Item 4] A full harness type fall arrest device 2 as described in item 3, in which the belt holder 30 is prevented from rotating on the upper plate 26.

[0044] [Item 5] The upper plate 26 has a rotation prevention hole 26C. The belt holder 30 has a rotation stopper 30B that is inserted into the rotation stopper hole 26C, A full harness type fall arrest device 2 as described in item 4, in which a rotation stopper 30B protruding from the rotation stopper hole 26C regulates the rotation range of the lower plate 28. [Industrial Applicability]

[0045] The full harness type fall arrest device disclosed herein can be widely used in work such as electrical work, communication work, construction work, and civil engineering work. [Explanation of symbols]

[0046] 2, 52...Full harness type fall arrest device 4. Full harness 6. Waist belt 12 Shoulder belt 14. Thigh belt 22... Connector 22B...Back side 22F...Surface 26...Upper plate 26C Anti-rotation hole 28...Lower plate 30 Belt holder 30B: Anti-rotation 30C, 30D...Engagement claw 32 Tool rack

Claims

1. Shoulder belt and Leg belt and A connector having a belt holder arranged on the back surface and a tool hanger arranged on the front surface, the connector being arranged between the shoulder belt and the thigh belt; A full harness type fall arrest device.

2. Further comprising a waist belt; 2. A full harness type fall arrest device as described in claim 1, wherein the belt holder has a pair of engaging claws that engage with the widthwise ends of the waist belt.

3. The connector has an upper plate to which the shoulder belt is attached and a lower plate to which the thigh belt is attached and which is rotatable relative to the upper plate, 3. A full harness type fall arrest device as described in claim 1 or 2, wherein the belt holder is rotatable relative to the lower plate.

4. 4. The full harness type fall arrest device according to claim 3, wherein the belt holder is prevented from rotating on the upper plate.

5. The upper plate has a rotation prevention hole, the belt holder has a rotation stopper that is inserted into the rotation stopper hole, A full harness type fall arrest device as described in claim 4, wherein the anti-rotation portion protruding from the anti-rotation hole regulates the rotation range of the lower plate.

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