JP5220932B2 - Harness type safety belt and shape holder - Google Patents

Description

  The present invention relates to a harness-type safety belt used for prevention of falling during work at high places, and a shape holder used for a harness-type safety belt.

  At high-altitude work sites, workers wear safety belts to prevent falling accidents. As this safety belt, a waist belt type safety belt and a harness type safety belt are known. The waist belt type safety belt is a safety belt attached around the waist. Attachment and detachment of the waist belt type safety belt is easy with a simple structure. In this body belt type safety belt, a drop impact is locally applied around the body.

  The harness-type safety belt includes a pair of shoulder belts and a pair of thigh belts. In the harness-type safety belt, the impact of dropping is distributed to a plurality of locations on the body. The harness-type safety belt has a smaller impact on one place than the body belt-type safety belt. The harness-type safety belt has a small local impact on the body. The harness type safety belt is excellent in safety.

  This harness-type safety belt has a more complicated structure than the body belt-type safety belt. The harness-type safety belt is often stored in a rolled state. Each belt of the harness-type safety belt is easily tangled and twisted. The harness-type safety belt in a rolled state is difficult to distinguish in the vertical direction, the front-rear direction, and the front and back. The harness-type safety belt is attached after confirming the vertical direction, the front-rear direction, and the front and back sides when worn. The tangling and twisting of each belt of the harness-type safety belt is corrected at the time of wearing. Wearing a harness-type safety belt takes time.

  A harness type safety belt in which a vest is integrated is described in Japanese Utility Model Registration No. 3069295. Since this harness-type safety belt integrates the vest, it is easy to distinguish the shoulder belt. This harness-type safety belt can be easily distinguished in the vertical direction and the front-rear direction. This harness-type safety belt is excellent in ease of wearing.

Utility Model Registration No. 3069295

  In this harness-type safety belt, the front and back of the vest can be reversed. In this harness-type safety belt, it is necessary to check the front and back. This harness-type safety belt has room for improvement in ease of wearing. This harness-type safety belt is equipped with a vest, so workers feel hot on hot days. The harness-type safety belt from which the vest has been removed takes time to identify each part, to confirm the vertical direction, the front-rear direction, and the front and back sides. This harness-type safety belt has room for improvement in wearing feeling on hot days.

  An object of the present invention is to provide a harness-type safety belt that is easy to wear and a shape holder thereof.

  The harness-type safety belt according to the present invention includes a pair of shoulder belts and a pair of thigh belts. This shoulder belt is provided with a curved portion. This curved portion holds the curved shape in the longitudinal direction of the belt body.

  The harness-type safety belt according to the present invention includes a pair of shoulder belts and a pair of thigh belts. This thigh belt has a curved portion. This curved portion holds the curved shape in the longitudinal direction of the belt body.

  Preferably, the curved portion provided in the shoulder belt or the thigh belt includes a shape plate and a detachable portion. This shape plate holds the curved shape in the longitudinal direction. This shape plate can be attached to and detached from the belt main body by an attaching / detaching portion.

  The shape holder according to the present invention includes a shape plate and a detachable portion. This shape plate holds the curved shape in the longitudinal direction. This shape plate can be attached to and detached from the belt body of the harness-type safety belt by an attaching / detaching portion.

  In the harness-type safety belt according to the present invention, the part specified as the bending portion is discriminated at a glance. In this harness-type safety belt, the curved portion can be discriminated at a glance even when it is placed at random. The vertical direction, the front-rear direction, and the back and front are easily discriminated by the position and direction of the curved portion. This harness-type safety belt is quickly installed. By attaching the shape holder according to the present invention to the conventional harness-type safety belt, the vertical direction, the front-rear direction, and the front and back are easily discriminated similarly to the harness-type safety belt according to the present invention.

FIG. 1 is a front view showing a harness-type safety belt according to an embodiment of the present invention. 2 is a cross-sectional perspective view of the shoulder belt of the harness-type safety belt of FIG. FIG. 3 is an external view of a wire core attached to the shoulder belt of FIG. FIG. 4 is a rear view showing a usage state of the harness-type safety belt of FIG. 1. FIG. 5 is a side view showing a usage state of the harness-type safety belt of FIG. FIG. 6 is a cross-sectional perspective view of a shoulder belt of a harness-type safety belt according to another embodiment of the present invention. FIG. 7 is a cross-sectional perspective view of a shoulder belt of a harness-type safety belt according to still another embodiment of the present invention.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  FIG. 1 is a front view showing a harness-type safety belt 2 according to an embodiment of the present invention. The harness-type safety belt 2 includes a pair of main belts 4a and 4b, a buttocks support belt 6, a D ring stopper 8, a connection belt 10, a chest belt 12, a pair of buckles 16, a pair of adjustment slides 18, and a hook-and-loop fastener 20. ing.

  The first main belt 4a extends from the upper end 22a to the lower end 24a. The first main belt 4 a is folded back obliquely downward above the harness-type safety belt 2. The first main belt 4a folded back obliquely downward intersects the second main belt 4b at the upper center of the harness-type safety belt 2. The intersecting main belt 4a extends obliquely downward to reach the upper end 22a. The first main belt 4a is sewn to intersect the second main belt 4b in the vicinity of the upper end 22a. By this stitching, the first stitched portion 26a of FIG. 1 is formed.

  The second main belt 4b extends from the upper end 22b to the lower end 24b. The second main belt 4b is folded back obliquely downward above the harness-type safety belt 2. The second main belt 4b folded back obliquely downward intersects the first main belt 4a at the upper center of the harness-type safety belt 2. The intersecting main belt 4b extends obliquely downward until reaching the upper end 22b. The second main belt 4b is sewn to intersect the first main belt 4a in the vicinity of the upper end 22b. By this stitching, the second stitching portion 26b of FIG. 1 is formed.

  The buttocks support belt 6 extends in the left-right direction near the center of the harness-type safety belt 2 in the up-down direction. One end of the buttocks belt 6 is overlapped with the main belt 4a and stitched. A third stitched portion 28a is formed by this stitching. The other end of the buttocks support belt 6 is overlapped with the main belt 4b and stitched. By this stitching, a fourth stitching portion 28b is formed.

  A D ring 29 (see FIG. 5) described later is rotatably attached to the D ring stopper 8. The D ring stopper 8 is attached at a position where the main belt 4 intersects with each other above the center of the harness type safety belt 2. A pair of main belts 4 cross each other through the D ring stopper 8. In the harness-type safety belt 2, a pentagonal space having the first stitched portion 26a, the second stitched portion 26b, the third stitched portion 28a, the fourth stitched portion 28b, and the D ring stopper 8 as a vertex is formed.

  The connection belt 10 includes a belt main body 30 and a ring 31. The ring 31 is attached to the upper end of the belt body 30 of the connecting belt 10. The lower end of the belt body 30 is attached to a D ring 29 described later. The connecting belt 10 is connected to the D ring stopper 8 through the D ring 29.

  The chest belt 12 includes a first belt 32, a second belt 34, a buckle 36 and an adjustment slide 38. The buckle 36 includes a socket 40 and a tongue plate 42 that can be attached to and detached from the socket 40. The tongue plate 42 is attached to one end of the first belt 32. The other end of the first belt 32 is attached to the first main belt 4a. The other end of the first belt 32 is attached to the main belt 4a at a position between the second stitching portion 26b and the upper turn of the main belt 4a. The first belt 32 is provided with an adjusting slide 38 between both ends thereof. The folding length of the first belt 32 is adjusted by the adjustment slide 38. The adjustment slide 38 adjusts the length of the chest belt 12.

  The socket 40 is attached to one end of the second belt 34. The other end of the second belt 34 is attached to the second main belt 4b. The other end of the second belt 34 is attached to the main belt 4b at a position between the first stitching portion 26a and the upper turn of the main belt 4b.

  The buckle 16 includes a ring 44 and a tongue plate 45. A ring 44 is attached to the upper end 22 of the main belt 4. A tongue plate 45 is attached to the lower end 24 of the main belt 4. The ring 44 of the first main belt 4a and the tongue plate 45 of the second main belt 4b constitute one buckle 16. The ring 44 of the second main belt 4b and the tongue plate 45 of the first main belt 4a constitute the other buckle 16.

  The adjustment slide 18 is attached in the vicinity of the lower end 24 of the main belt 4. The adjustment slide 18 adjusts the folding length of the main belt 4. The adjustment slide 18 adjusts the length of the main belt 4.

  The surface fastener 20 includes a hook tape 46 and a loop tape 47. A hook tape 46 is sewn on the connecting belt 10. A loop tape 47 is sewed on the upper fold of the main belt 4. The connecting belt 10 can be fixed in a state in which the connecting belt 10 is weighted to the main belt 4 by the hook-and-loop fastener 20.

  The main belt 4 is formed with a pair of shoulder belts 48 and a pair of thigh belts 50. One shoulder belt 48 is formed on the main belt 4a from the D ring stopper 8 to the second stitching portion 26b. The other shoulder belt 48 is formed on the main belt 4b from the D ring stopper 8 to the first stitching portion 26a. One thigh belt 50 is formed on the main belt 4a from the third stitching portion 28a to the lower end 24a. The other thigh belt 50 is formed on the main belt 4b from the fourth stitching portion 28b to the lower end 24b. In this harness-type safety belt 2, the connecting belt 10 can be attached to and detached from the shoulder belt 48 by the hook-and-loop fastener 20.

  2 is a cross-sectional perspective view of the shoulder belt 48 of the harness-type safety belt 2 of FIG. This cross section is a plane perpendicular to the longitudinal direction of the shoulder belt 48. The shoulder belt 48 includes a curved portion 52. The bending portion 52 includes a wire core 54 and a cover 56. Two wire cores 54 are arranged in parallel along the longitudinal direction of the shoulder belt 48. A cover 56 is sewn to the main belt 4. With this cover 56, the wire core 54 is held along the longitudinal direction of the main belt 4. Although not shown, both ends of the cover 56 in the longitudinal direction are sewn to the main belt 4. Thereby, the longitudinal direction position of the wire core 54 is determined.

  3 is an external view of the wire core 54 attached to the shoulder belt 48 of FIG. The wire core 54 includes a wire 57 and a cap 58. The cross section perpendicular to the longitudinal direction of the wire 57 is a uniform rectangle. The wire 57 is curved in the longitudinal direction. Thereby, the bending part 52 is maintaining the curve shape in the longitudinal direction of a belt.

  Examples of the material of the wire 57 include spring steel (SUP), hard steel wire (SWRH), piano wire (SWRS), and shape memory alloy. The material of the wire 57 may be a resin. Specific examples include polyamide, polycarbonate, and acrylonitrile-butadiene-styrene resin. The material of the wire 57 is not limited to these. The material of the wire 57 should just be provided with the elasticity which deform | transforms with respect to an external force and will be restored to the original curved shape, if an external force is removed. The cap 58 is attached to both ends of the wire 57. The cap 58 prevents the cover 56, the main belt 4 and the human body from being damaged by both end edges.

  A method for mounting the harness-type safety belt 2 of FIG. 1 will be described. The harness-type safety belt 2 is worn from a rolled-up state or a state in which it is placed unintentionally. In the harness-type safety belt 2, the shoulder belt 48 includes a curved portion 52. In the harness type safety belt 2, the shoulder belt 48 is curved. Due to this curved shape, the shoulder belt 48 of the harness-type safety belt 2 can be easily identified. Due to this curved shape, it is easy to distinguish the longitudinal direction and the vertical direction of the shoulder belt 48. Due to this curved shape, the front and back of the shoulder belt 48 can be easily distinguished.

  The operator grasps and lifts the curved shoulder belt 48. The thigh belt 50 and the chest belt 12 may be tangled or twisted. In this harness-type safety belt 2, a thigh belt 50 and a chest are placed in a pentagonal space having the first stitched portion 26a, the second stitched portion 26b, the third stitched portion 28a, the fourth stitched portion 28b, and the D-ring stopper 8 as apexes. The belt 12 may enter. The operator fixes the tangle and twist of the thigh belt 50 and the chest belt 12 while holding the shoulder belt 48. Since the front-rear direction, the vertical direction, and the front and back sides of the harness-type safety belt 2 are easily discriminated, the entanglement and twist can be easily corrected.

  The operator has a shoulder belt 48 in advance. The operator puts his arm through the shoulder belt 48. Thereby, when passing an arm through the shoulder belt 48, the operator does not need to re-take the harness-type safety belt 2. A shoulder belt 48 is hung on the operator's shoulder. The thigh belt 50 is passed between the crotch from behind. The tongue plate 45 of the first main belt 4a is connected to the ring 44 of the second main belt 4b. The tongue plate 45 of the second main belt 4b is connected to the ring 44 of the first main belt 4a. The length of the main belt 4 is adjusted by the adjustment slide 18. The socket 40 of the chest band 12 and the tongue plate 42 are connected. The length of the chest band 12 is adjusted by the adjustment slide 38.

  FIG. 4 is a rear view showing the usage state of the harness-type safety belt 2 of FIG. FIG. 4 is a view seen from the rear of the operator. FIG. 5 is a side view showing the usage state of the harness-type safety belt 2 of FIG. FIG. 5 is a view seen from the left side of the operator. In FIG. 5, the worker's body is omitted. A D-ring 29 is attached to the lower end of the connecting belt 10. A pair of main belts 4 are passed through the D ring 29.

  As shown in FIG. 5, the curved portion 52 of the harness-type safety belt 2 is placed on the operator's shoulder. The wire 57 of the curved portion 52 is a material that can be elastically deformed. When the main belt 4 and the chest belt 12 are fastened, the shoulder belt 48 provided with the curved portion 52 is along the shoulder of the operator. Thereby, this harness type safety belt 2 fits an operator's body.

  The curvature radius of the bending portion 52 may be changed in the front-rear direction. The front radius of curvature along the chest of the harness-type safety belt 2 may be larger than the upper radius of curvature along the shoulder. Thereby, the front-back direction of the harness-type safety belt 2 is easier to discriminate. Thereby, it is easy to follow a worker's body.

  The shoulder belt 48 is not twisted because the curved shape is maintained. The curved convex surface of the shoulder belt 48 is the front side. The curved concave surface of the shoulder belt 48 is the back side. The harness-type safety belt 2 can be discriminated from the front and back at a glance. The shoulder belt 48 is prevented from being deformed.

  At the time of storage, the connecting belt 10 is fixed to the shoulder belt 48 by the hook-and-loop fastener 20. Thereby, it is suppressed that the connection belt 10 is twisted or entangled even during storage. With the harness-type safety belt 2 attached, the connecting belt 10 is separated from the shoulder belt 48. The ring 31 is connected to a lifeline (not shown). The lifeline and the harness-type safety belt 2 prevent the operator from falling from an altitude and being injured.

  In this harness-type safety belt 2, since the connecting belt 10 is prevented from being twisted or entangled, the connecting belt 10 can be used quickly. The connecting belt 10 is detachably fixed by a hook-and-loop fastener 20. Other fixing means may be used as long as it is securely fixed and can be easily detached. For example, it may be a snap that is a combination of a concave shape and a convex shape, which is used for clothes.

  The harness-type safety belt 2 can be easily mounted without a vest. This harness-type safety belt 2 is comfortably worn even on a hot day.

  In the harness type safety belt 2, the wire core 54 is attached to the main belt 4 by a cover 56. The wire core 54 may be attached along the longitudinal direction of the belt, and the attaching means is not limited to the means of the harness-type safety belt 2. For example, a part of the warp yarn of the main belt 4 is extracted, and a space continuous in the longitudinal direction is formed inside the main belt 4. A wire core 54 may be passed through this space.

  Here, the harness-type safety belt 2 in which the shoulder belt 48 includes the curved portion 52 has been described. The curved portion 52 may be provided on the thigh belt 50. In the harness-type safety belt 2 in which the thigh belt 50 includes the curved portion 52, the first stitched portion 26a, the second stitched portion 26b, the third stitched portion 28a, the fourth stitched portion 28b, and the D ring stopper 8 are set as apexes. The thigh belt 50 is suppressed from entering the pentagonal space. In the harness-type safety belt 2, the thigh belt 50 is prevented from being tangled or twisted. Here, the harness-type safety belt 2 in which the pair of shoulder belts 48 includes the curved portion 52 has been described. Any one of the pair of shoulder belts 48 and the pair of thigh belts 50 may include the curved portion 52.

  FIG. 6 is a cross-sectional perspective view of a shoulder belt 64 of a harness-type safety belt 62 according to another embodiment of the present invention. Here, a different part from the harness type safety belt | band | zone 2 of FIG. 1 is demonstrated. The description of the same configuration in the harness-type safety belt 62 and the harness-type safety belt 2 is omitted. The shoulder belt 64 includes a belt main body 66 and a coating 68 as a curved portion. This coating 68 is coated on the belt body 66. This coating 68 is curved in the longitudinal direction of the belt. The shoulder belt 64 is curved in the longitudinal direction of the belt.

  Thereby, discrimination of the shoulder belt 64 of the harness type safety belt 62 is easy. The front-rear direction, the vertical direction, and the front and back of the harness-type safety belt 62 can be easily distinguished. The coating 68 only needs to have elasticity that is deformed by an external force and is restored to the original curved shape when the external force is removed. Examples of the material of the coating 68 include a resin. Examples include polyamides, polycarbonates, and acrylonitrile-butadiene-styrene resins.

  FIG. 7 is a cross-sectional perspective view of a shoulder belt 74 of a harness-type safety belt 72 according to still another embodiment of the present invention. The shoulder belt 74 includes a belt main body 76 and a shape holder 78 as a curved portion. The shape holder 78 includes a shape plate 80 and a pair of attaching / detaching portions 82. The shape plate 80 is an elastic body and has a long plate shape. The shape plate 80 is curved in the longitudinal direction. Examples of the material of the shape plate 80 include spring steel (SUP), hard steel wire (SW), piano wire (SWP), and shape memory alloy. The material of the shape plate 80 may be a resin like the harness-type safety belt 62 described above. The material of the shape plate 80 only needs to have elasticity that is deformed by an external force and is restored to the original curved shape when the external force is removed.

  The detachable portion 82 is attached along a pair of ends extending in the longitudinal direction of the shape plate 80. One end of the detachable portion 82 is attached to the shape plate 80. A hook-and-loop fastener (not shown) is attached to the other end of the detachable portion 82. A loop tape of a hook-and-loop fastener is attached to the other end of one attaching / detaching portion 82. A hook tape is attached to the other end of the other attaching / detaching portion 82.

  The profile plate 80 is disposed along the belt body 76 of the shoulder belt 74. The belt main body 76 is surrounded by the pair of attaching / detaching portions 82 and the shape plate 80. The loop tape of one attaching / detaching portion 82 and the hook tape of the other attaching / detaching portion 82 are bonded. Thereby, the shape plate 80 is integrally fixed to the belt main body 76. This shape plate 80 is curved in the longitudinal direction. Thereby, the shoulder belt 74 is curved in the longitudinal direction. Further, the shape holder 78 can be removed by removing the hook-and-loop fastener of the attaching / detaching portion 82. The shape holder 78 can be attached to the harness-type safety belt 72 again with a hook-and-loop fastener. The shape holder 78 can be attached to another harness-type safety belt.

  The shape holder 78 can be attached to a conventionally used harness-type safety belt. The shape holder 78 can be attached to a belt in another part of the harness-type safety belt. By attaching the shape holder 78, the front-rear direction, the up-down direction, and the front and back sides can be easily discriminated similarly to the harness-type safety belt 72 according to the present invention. A harness-type safety belt is quickly installed.

  The present invention can be applied to a harness-type safety belt.

2 ... Harness type safety belt 4, 4a, 4b ... main belt 6 ... buttocks rest belt 8 ... D ring stopper 10 ... coupling belt 12 ... chest belt 16 ... buckle 18 ... Adjustment slide 20 ... Hook fastener 22, 22a, 22b ... Upper end 24, 24a, 24b ... Lower end 26a, 26b ... Suture part 28a, 28b ... Suture part 29 ... D Ring 30 ... Belt body 31 ... Ring 32 ... First belt 34 ... Second belt 36 ... Buckle 38 ... Adjustment slide 40 ... Socket 42 ... Tongue plate 44 .. Ring 45 ... tongue plate 46 ... hook tape 47 ... loop tape 48 ... shoulder belt 50 ... thigh belt 52 ... curved portion 54 ... wire core 56 ... Cover 5 7 ... Wire 58 ... Cap 62 ... Harness type safety belt 64 ... Shoulder belt 66 ... Belt body 68 ... Coating 72 ... Harness type safety belt 74 ... Shoulder belt 76 ... Belt body 78 ... Shape holder 80 ... Shape plate 82 ... Detachable part

Claims (3)

It has a pair of shoulder belts and a pair of thigh belts,
This shoulder belt has a curved part,
This curved portion holds the curved shape in the longitudinal direction of the belt body,
This curved part has a wire core and a cover,
The cover is sewn on the belt body of this shoulder belt,
This wire core is arranged along the longitudinal direction of the shoulder belt and is held by the cover,
A harness-type safety belt in which the back side of the shoulder belt is a surface facing the operator's shoulder, and the back side is a curved concave surface.   The harness-type safety belt according to claim 1, wherein a position in a longitudinal direction of the wire core is defined. The curvature radius of the curvature of the curved portion is different in the front-rear direction,
The harness-type safety belt according to claim 2, wherein a radius of curvature of a front portion along the chest is larger than a radius of curvature of a portion along a shoulder at an upper rear side of the chest.

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