JP6240008B2 - Harness type safety belt - Google Patents

Description

  The present invention relates to a harness-type safety belt that is attached to an operator in order to ensure safety during work at a high place.

  The harness-type safety belt to be worn at work in high places is formed by a pair of flexible shoulder belts and a pair of thigh belts. It is divided into and.

  Here, as described in Patent Document 1, for example, the V-shape refers to a type in which a pair of thigh belts are V-shaped in a worn state, while the pair of thigh belts are thighs. A type in which the base part of the part is wound is called a horizontal type.

  Both the V-shaped and horizontal harness-type safety belts have a lower impact force at the loop and the thighs than the body belt-type safety belt. And the load on the wearer is small.

JP 2009-112368 A

  By the way, since the harness-type safety belt has a plurality of loop portions as described above, the belt is likely to be twisted or entangled when the harness-type safety belt is folded small or rolled up and stored.

  Here, in the horizontal harness-type safety belt, buckles are attached to both ends of the thigh belt, and the loop portion can be opened and closed by the buckles so as to facilitate the wearing. When the loop part is opened, the thigh belt expands in a band shape, and the buckle at the end of the thigh belt hides in the loop part formed by the shoulder belt when folding and storing the harness-type safety band or wearing it Often twist and entangle. There is a problem that it takes much time to remove the twist and entanglement, and it takes time to wear accurately.

  An object of the present invention is to prevent torsion and entanglement of a shoulder belt and a thigh belt that form a harness-type safety belt.

  In order to solve the above-described problems, the present invention has two adjustable belts which intersect at a part in the length direction and are not separated at the intersection. A pair of left and right front belts that are provided on the shoulder of the worker by folding back from a portion close to the intersection, and hang down from the front end of the shoulder hanging portion so that the end reaches the front portion of the operator's thigh. A pair of thigh belts wrapped around each of the thighs, each of the ends of a pair of left and right dorsal belts that hang from the ends of the thighs and the ends of the thighs reach the rear part of the thighs In a harness-type safety belt that is connected to each other and provided with a chest belt between portions facing the chest of the pair of front belt portions, a corner portion that is formed by an end portion of the front belt portion and an end portion of the thigh belt Diagonally Pass the support belt as cut, it was adopted a structure connected with each other at both ends overlapping the front belt portion and thigh belt of the support belt.

  As described above, the support belt is slanted between the end portion of the front belt portion and the end portion of the thigh belt, and the front belt portion and the both end portions overlapping the thigh belt are coupled to each other, whereby the front belt is supported by the support belt. The bending of the end of the belt and the end of the thigh belt can be suppressed, and the connecting portion of the front belt and the thigh belt passes through the loop space formed by the belt and the thigh belt, and the front belt and the thigh belt The belt is not twisted and entangled.

  Here, if the support belt is provided with a core material having plastic deformability that is plastically deformed by an external force load to maintain the deformed state, the connecting portion between the front belt portion and the thigh belt can pass through the loop space. It can prevent more reliably and can prevent more effectively the twisting and entanglement of the end of the thigh belt.

  The core material may be composed of a large number of parallel core wires, or may be a tape formed from the numerous core wires. Furthermore, it may be made of a strip-shaped metal thin plate.

  In the harness-type safety belt according to the present invention, the pair of backside belt portions may be formed in an inverted Y shape that branches from side to side from a lower end portion of a forming portion that overlaps each other to form a single belt. Alternatively, it is branched to the left and right from the intersection, forming an inverted V shape, and a connecting belt is passed between the lower ends of the pair of backside belt portions, and the overlapping portions of the end portions and the backside belt portions are coupled to each other. A-shaped ones may be used.

  In the harness-type safety belt in which the pair of back belt portions are in an inverted Y shape, external force is applied to each of the pair of back belt portions, the support belt of the thigh belt, the connecting portion of the back belt portion, and the support belt. When a core material having plastic deformability that plastically deforms and maintains its deformed state by loading is provided, the harness-type safety belt is suspended and supported by the intersection of two belts. The form of time can be easily created.

  On the other hand, even in the harness-type safety belt in which the pair of back belt portions are A-shaped, each of the connecting belt, the pair of back belts, the thigh belt support belt, the connecting portion of the back belt portion, and the support belt In addition, if a core material with plastic deformability that plastically deforms and maintains its deformed state by applying an external force is provided, these belts maintain their form when worn even when the harness type safety belt is removed. Therefore, by suspending and supporting the harness-type safety belt with the intersection of the two belts, the form at the time of wearing can be easily created.

  In the present invention, as described above, the support belt is obliquely passed between the end portion of the front belt portion and the end portion of the thigh belt, and the both ends overlapping the front belt portion and the thigh belt are coupled to each other. The connecting part of the thigh belt and the front belt part can be prevented from bending toward the loop space formed by the belt and the thigh belt, and the connecting part of the thigh belt and the front belt part penetrates through the loop space, It is possible to prevent the front belt portion and the thigh belt from being twisted or entangled, thereby facilitating wearing.

The rear view which shows embodiment of the harness type safety belt which concerns on this invention The front view which shows the wearing condition of the harness type safety belt shown in FIG. The rear view which shows the wearing condition of the harness type safety belt shown in FIG. Sectional view along line IV-IV in FIG. The rear view which shows other embodiment of the harness type safety belt which concerns on this invention

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the harness-type safety belt according to the present invention has a pair of belts 10a and 10b. Each of the pair of belts 10 a and 10 b includes a shoulder belt 11 and a length adjustment belt 12 connected to one end of the shoulder belt 11.

  The length adjusting belt 12 is connected to the shoulder belt 11 by inserting one end portion into a length adjusting tool 13 composed of two rectangular rings attached to the end of the shoulder belt 11. The length is adjusted by pushing and pulling the folded folding belt 12a. The folding belt 12 a is inserted into a pair of parallel belt insertion holes of the ring retaining plate 14 attached to the length adjustment belt 12 and is held in a state of overlapping the length adjustment belt 12.

  Each of the shoulder belt 11 and the length adjusting belt 12 is formed by weaving synthetic fibers. In the embodiment, it is formed by weaving polyester fibers (Tetron) and has flexibility.

  The pair of belts 10a and 10b intersect with each other in a part of the shoulder belt 11 in the length direction, and the intersecting portions are joined by attaching the retaining plate 15 so as not to be separated so as to be overlapped. Yes.

  Here, although the ring retaining plate 15 is not shown in detail in the drawing, three pairs of parallel pair of belt insertion holes each having a long hole are formed on both sides of the upper portion and the lower portion, and one of the pair of belts 10a and 10b is formed. Is inserted into each of the pair of belt insertion holes on the upper one side and the pair of belt insertion holes on the lower side, and the other belt is inserted into each of the pair of belt insertion holes on the other side of the upper side and the pair of belt insertion holes on the lower side. In a non-separated state.

  A ring body 16 called a D ring is attached to the folded portion of the belts 10 a and 10 b inserted into the pair of belt insertion holes at the lower part of the ring stopper plate 15.

  Each of the shoulder belts 11 of the pair of belts 10a and 10b is provided with a shoulder portion 17 that is hung on the operator's shoulder by folding back from a portion close to the intersection, and a front belt portion 18 that hangs down from the front end of the shoulder portion 17. The end of the length adjustment belt 12 is in a state of facing the front portion of the operator's thigh when the harness-type safety belt is worn.

  On the other hand, the back side belt portion 19 hanging from the intersection of the pair of belts 10a and 10b is overlapped with each other by a pair of retaining plates 20 provided in the vertical direction to form a single belt. It is branched from the lower ring stop plate 20 to the left and right to form an inverted Y shape.

  Here, of the pair of belts 10a and 10b shown in FIG. 1, the lower end portion of the back belt portion 19 of the left belt 10a branches to the right side, while the lower end portion of the back belt portion 19 of the right belt 10b. Is branched to the left side, and the end of each back belt portion 19 faces the rear portion of the operator's thigh while wearing the harness-type safety belt.

  Between the pair of belts 10a and 10b, between the lower end of the front belt portion 18 of one belt 10a and the lower end of the back belt portion 19 of the other belt 10b and the lower end of the front belt portion 18 of the other belt 10b. A thigh belt 21 is attached between the lower end portions of the back belt portion 19 in the one belt portion 10a.

  Here, the lower end portion of the front belt portion 18 in the pair of belts 10a and 10b is overlapped with one end portion of the thigh belt 21 and joined through sewing means, and the back belt portion in the pair of belts 10a and 10b. A lower end portion of 19 is overlapped with an intermediate portion in the length direction of the thigh belt 21 and joined through means by sewing.

  The pair of thigh belts 21 has a length that can be wound around the operator's thighs, and buckles 22 and 23 that are detachable from each other are attached to both ends thereof. By engaging the buckles 22 and 23 with each other, the thigh belt 21 is held in a wearing state that forms a loop portion.

  Chest belts 24a and 24b are provided between portions of the pair of belts 10a and 10b facing the chest of the pair of front belt portions 18, and buckles that can be attached to and detached from the ends of the chest belts 24a and 24b. 25 and 26 are provided.

  When wearing the harness-type safety belt having the above-described configuration, the pair of shoulder straps 17 are hung on the shoulders, the back belt portion 19 is placed along the back, and the pair of thigh belts 21 are wound around the thigh, The buckles 22 and 23 at the end of 21 are engaged with each other to hold the wound state. Further, the buckles 25 and 26 at the ends of the pair of chest belts 24a and 24b are engaged with each other to bring the chest belt into a connected state. 2 and 3 show the wearing state of the harness-type safety belt.

  Here, the harness-type safety belt may be used alone or may be used in combination with the body belt 27 shown by the chain line in FIGS. 1 and 5, and one of the length adjustment belts 12 of the belts 10a and 10b. Both end portions of the short belt 28 are attached to the portion, and a bag portion into which the body belt 27 is inserted is provided at the overlapping portion of the short belt 28 and the length adjusting belt 12.

  In the harness type safety belt, each of the shoulder belt 11 and the length adjusting belt 12 and the thigh belt 21 forming the belts 10a and 10b has flexibility, and each of the pair of thigh belts 21 is a harness type safety belt. Left and right loops formed by the pair of belts 10a and 10b and the thigh belt 21. There are many cases where the part enters the loop space 30 by diving and twists or gets entangled.

  In this case, it is necessary to remove the twist and the entanglement, and it takes much time to remove the twist and the entanglement. In order to eliminate such an inconvenience, here, the support belt 40 is passed so as to obliquely cross a corner portion formed by the lower end portion of the front belt portion 18 and one end portion of the thigh belt 21, and the support belt 40 Each of the end portions overlapping the front belt portion 18 and the thigh belt 21 are connected to each other through means by sewing.

  As described above, the support belt 40 is obliquely passed between the end portion of the front belt portion 18 and one end portion of the thigh belt 21, and both ends thereof are coupled to the front belt portion 18 and the thigh belt 21, respectively. It can suppress that the one end part of the thigh belt 21 bends toward the loop space 30 formed by the belts 10 a and 10 b and the thigh belt 21. As a result, it is possible to prevent one end portion of the thigh belt 21 from passing through the loop space 30, and twisting or entanglement of the front belt portion 18 or the thigh belt 21 of the belts 10a and 10b can be prevented. A harness-type safety belt can be obtained.

  Here, in the harness-type safety belt shown in FIG. 1, the shoulder belt 11 and the thigh belt 21 are connected between the portion A to which the shoulder belt 11 is connected and the portion B to which the support belt 40 is connected and to the support belt 40. The core material 50 shown in FIG. 4 is provided to give shape retention to maintain the shape.

  The core material 50 is provided along the length direction of each belt. The core member 50 has plastic deformability that plastically deforms and maintains a deformed state when an external force is applied. Here, a large number of parallel core wires made of polyethylene having plastic deformability are used as the core material 50, and the core material 50 composed of the multiple core wires is provided inside each bag-like belt. However, the core material 50 composed of a large number of core wires may be formed into a tape shape (strip shape), and the tape-shaped core material 50 may be provided inside the belt. It may be integrated on the surface of the belt by means such as sewing.

  Furthermore, the core member 50 may be made of a strip-shaped metal thin plate. The core member 50 made of the thin metal plate may be provided inside the belt, similarly to the tape-shaped core member 50. Alternatively, it may be fixed on the surface of the belt by means of adhesion or the like.

  As described above, the core member 50 is provided between the shoulder belt 11 and the portion B where the shoulder belt 11 of the thigh belt 21 is connected and the portion B where the support belt 40 is connected, and the support belt 40. Since these belts maintain the form when worn even when the harness-type safety belt is undressed, one end of the thigh belt 21 connected to the front belt portion 18 is more reliably prevented from passing through the loop space 30. It is possible to more effectively prevent the front belt portion 18 and the thigh belt 21 from being twisted or entangled.

  Further, each of the shoulder belt 11, the thigh belt 21 and the support belt 40 maintains the form at the time of wearing even when the harness-type safety belt is removed, and the ring body 16 provided at the intersection of the pair of belts 10a and 10b. By suspending and supporting the harness-type safety belt, the harness-type safety belt can be shaped when worn, and the harness-type safety belt can be worn accurately and quickly.

  In the embodiment shown in FIG. 1, the core member 50 is provided over the entire length of the shoulder belt 11, but it may be provided only in the back belt portion 19 of the shoulder belt 11.

  In the embodiment shown in FIG. 1, the back belt portions 19 of the pair of belts 10a and 10b are overlapped with each other, and the lower end portion of the forming portion forming one belt is branched left and right to form an inverted Y shape. However, the present invention is not limited to this.

  For example, as shown in FIG. 5, the pair of backside belt portions 19 are branched from the intersection to the left and right to form an inverted V shape, and a connecting belt 41 is passed between the lower ends of the pair of backside belt portions 19. The overlapping portion of the end portion and the back belt portion 19 may be coupled to each other.

  In the harness type safety belt shown in FIG. 5, as in the harness type safety belt shown in FIG. 1, a support belt 40 is provided between the lower end portion of the front belt portion 18 and one end portion of the thigh belt 21. A core member 50 is provided on each of the shoulder belt 11 and the thigh belt 21 to prevent the front belt portion 18 and the thigh belt 21 from being twisted or entangled.

10a belt 10b belt 17 shoulder portion 18 front belt portion 19 dorsal belt portion 21 thigh belt 24a chest belt 24b chest belt 40 support belt 41 connecting belt 50 core material

Claims (4)

It has two adjustable belts which intersect at a part in the length direction and are not separated at the intersecting part, and each shoulder of the belt is folded from a part close to the intersecting part to shoulder the operator. The shoulder part is hung from the front end of the shoulder part and the end part of the pair of left and right front belt parts reaches the front part of the operator's thigh and the end part is suspended from the intersecting part. Each of the ends of the pair of left and right dorsal belts reaching the rear part of the thigh is connected to each of the pair of thigh belts wound around each of the thighs, and the chest of the pair of front belts In a harness-type safety belt with a chest belt between opposing parts,
The support belt is passed so as to cross the corner formed by the end portion of the front belt portion and the end portion of the thigh belt, and the front belt portion of the support belt and both end portions overlapping the thigh belt are coupled to each other. A harness-type safety belt characterized by this.   The harness-type safety belt according to claim 1, wherein the support belt is provided with a core material having plastic deformability that plastically deforms the support belt by an external force load and maintains the deformed state.   The pair of back side belt portions overlap each other to form a reverse Y-shape branching left and right from the lower end of the forming portion forming one belt, and the pair of back side belt portions and the support belt of the thigh belt The harness-type safety belt according to claim 1 or 2, further comprising a core material having plastic deformability that plastically deforms and maintains the deformed state by applying an external force between each of the coupling portions of the back belt portion. .   The pair of back side belt portions branch left and right from the intersecting portion to form an inverted V shape, and a connecting belt is passed between the lower ends of the pair of back side belt portions, and the end portion and the back belt The overlapping parts of the parts are connected to each other and plastically deformed by applying an external force between the connecting belt, the pair of backside belt parts, and the connecting part of the support belt and the backside belt part of the thigh belt. The harness-type safety belt according to claim 1 or 2, wherein a core material having plastic deformability for maintaining the deformed state is provided.

Images