JP5714389B2 - Assembly method of harness-type safety belt - Google Patents

Description

  The present application relates to a method for assembling a harness-type safety belt used when working at a high place.

At work sites at high altitudes, workers use safety belts to prevent falling accidents. This safety belt is roughly divided into a torso belt type and a harness type, but a harness type safety belt composed of a shoulder belt and a thigh belt has a smaller drop impact load at the time of crash prevention than a torso belt type safety belt. The damage to the body can be reduced. In addition, the worker wearing the harness-type safety belt can wait in a stable posture until being rescued when the fall is prevented.
For these reasons, harness-type safety belts are now widely used in Japan.

  A lanyard provided with a connection device including a member locking hook at the tip of a belt or the like can exhibit its performance when it is prevented from falling by being attached to a connection ring of a crossover portion on the back of a shoulder belt. Therefore, the user understands that the harness type is superior in the fall prevention performance compared to the body belt type, but the work work at a high place is also different, and a harness type safety belt corresponding to the work form is required. ing. However, many of them require the same harness body but different lanyards.

  The type of lanyard part includes a lanyard with a belt, a rope with an impact absorbing device, a woven lanyard belt winding type, etc. (FIG. 7), and two lanyards with two ropes on the impact absorbing device. There is an equation (FIG. 8). Also two lanyards, two belt type, two narrow woven belt winding type, combination type of extension belt and narrow woven belt winding type, combination type of connecting belt and rope with shock absorber, etc. There is.

In any specification, the harness-type safety belt has a structure in which a harness body and a lanyard part are connected by a connection ring.
Such a harness-type safety belt includes “(1) sew a lanyard or an extension belt on a connection ring”, “(2) a connection ring with a lanyard or an extension belt attached to a cross-over portion on the back of the harness body. It can only be manufactured through a series of work steps such as “insert through” and “(3) attach necessary parts such as buckles to a plurality of thigh belts from the shoulder to the chest of the harness body and sew sequentially.”

  First, when the articulated buckle body or the buckle insertion piece is sewn at the belt tip, it passes through the belt insertion hole of the connection ring and a ring stopper (hereinafter referred to as a brim) for preventing misalignment for positioning the connection ring. First of all, it is necessary to create a cross-over section on the back of the shoulder belt.

Utility model registration No. 3106508

The main problem to be solved by the present invention is that when a lanyard part (lanyard or extension belt) is assembled, the harness body cannot be sewn and processed because it is a manufacturing method. Since the work is started from the process of assembling the lanyard part, the manufacturing period is inevitably increased.
Moreover, since the harness body must be sewn with the lanyard part assembled, it cannot be carried out smoothly and is very inefficient.

In order to avoid this situation, the present applicant has devised an open type connecting ring as shown in Utility Model Registration No. 3106508, in which the lanyard part and the harness body are manufactured in separate processes and can be combined in the final process. .
As shown in FIG. 10, this ring has a ring-like structure in which flat portions 41 are provided at both ends of one round bar and bent so that both holes 42 coincide with each other. There is a gap in the opening type connecting ring 4 which is in a closed state by attaching between flat portions.

The opening type connecting ring 4 is a closed ring by inserting the base end portion of the lanyard through the gap between the overlapped flat portions, pressing the flat portion to eliminate the gap, and fastening. As shown in FIG. 11, since the rivet 43 cannot be inserted unless the connecting hole of the flat part superposed at the time of crimping matches, the ring requires a delicate dimensional accuracy at the time of bending. The device for connecting the harness body and the lanyard part has not been put to practical use.
Therefore, it is necessary to provide a method capable of accurately connecting the harness body 1 and the lanyard portion 2 and efficiently manufacturing the harness-type safety belt.

  In order to manufacture the harness body and the lanyard separately and connect them in the final process to complete the harness-type safety belt, in this application, the ring is divided into a base and a mounting ring, and the harness body is equipped with a base. The mounting ring is arranged at the base end of the lanyard.

  A base 610 of the coupling ring 6 shown in FIG. 3 includes a belt receiving portion 611 having a width and a height through which a cross overlapping portion of the shoulder belt of the harness body 1 can be inserted, and connecting holes 63 at both ends of the belt receiving portion 611. The mounting ring 650 has a substantially arc shape through which the annular base end of the lanyard can be inserted, and is provided with connecting holes 67 at both ends thereof.

The base 610 sews the harness body 1 while being inserted between the crossover portion of the harness body 1 and the collar 5. The lanyard part 2 is manufactured in a state where the attachment ring 650 is inserted into the annular base end part of the lanyard 21.
Thus, since the coupling ring 6 is divided into the base 610 attached to the harness body 1 and the attachment ring 650 attached to the lanyard part 2, the harness body 1 and the lanyard part 2 should be manufactured separately. Can do.

Further, since the connection hole 63 of the base 610 and the connection hole 67 of the mounting ring 650 are formed using the same drilling die, the dimension between the two connection holes can ensure accuracy, and the base 610 can be secured. The mounting ring 650 can be easily and securely fastened by the shaft .
Thus, the belt receiving portion 611 of the base 610 and the lanyard attachment portion 651 of the attachment ring 650 are open types, and this is the basic structure.

  However, the belt receiving portion of the base may be a closed hole having a width and height that allows the crossed overlapping portion of the back of the shoulder belt of the harness body to be inserted, and the lanyard mounting portion of the mounting ring is inserted through the annular base end portion of the lanyard. A closed hole of a size that can be used may be used. In addition, it is a similar design change to provide a plurality of lanyard mounting holes for the mounting ring closing hole for a two-type lanyard.

  The combination of the coupling ring 6 composed of the base and the mounting ring is not limited to “(2) other than“ (1) The belt receiving portion of the base is an open type and the harness mounting portion of the mounting ring is an open type ”. ) The belt receiving part of the base is an open type, the harness mounting part of the mounting ring is a closed hole (Fig. 4) "," (3) The belt receiving part of the base is a closed hole, and the harness mounting part of the mounting ring is an open type ( 5) ”,“ (4) The belt mounting portion of the base is a closing hole, and the harness mounting portion of the mounting ring is a closing hole (FIG. 6) ”.

When this coupling ring 6 is used, the harness-type safety belt can be considered as a combination of the harness body 1 with the base 610 and the lanyard part 2 with the attachment ring 650. The harness body 1 and the lanyard part 2 are Can be produced separately.
As a result, even in the case of a special lanyard part according to a user's request, it is possible to manufacture only the lanyard part and combine it with a common harness body, and the manufacturing period is greatly shortened.

Conventionally, since the harness body 1 performs the sewing work with the lanyard part 2 attached, the long lanyard part 2 is bulky, making the work very difficult and the work efficiency poor. However, in the assembling method of the present application, since the harness body 1 can be sewn with the base 610 of the coupling ring 6 attached, the harness body can be sewn without the base 610 being bulky. The work efficiency is greatly improved.

Front view of harness-type safety belt Enlarged front view and side view with harness body and lanyard attached using coupling ring Front view of a coupling ring with an open base and an open mounting ring Front view of coupling ring with open base and closed mounting ring Front view of coupling ring with closed base and open mounting ring Front view of coupling ring with closed base and closed mounting ring Illustration showing the type of one lanyard Illustration of two lanyards Illustration showing the type of lanyards Front view of open connection ring Side view of open connection ring

FIG. 1 is an overall view of a harness-type safety belt, and FIG. 2 is an enlarged view showing a state in which a harness body and a lanyard part are connected. The harness body 1 inserts a pair of predetermined belts into the belt insertion hole 51 of the flange 5 and holds it in a substantially X shape to form a shoulder belt 11 and a plurality of thigh belts 12. Necessary parts such as a buckle insertion piece 14 and the like are attached to the tip of the connecting buckle body 13 and the thigh belt 12.
The lanyard portion 2 has a member locking hook 22 attached to the tip of a belt or the like.
A specific process by which the harness body 1 and the lanyard part 2 can be manufactured by connecting the connecting ring 6 divided into two parts of the base 610 and the mounting ring 650 will be described. The following embodiments are all methods of manufacturing a harness-type safety belt that is completed by separately manufacturing a harness body and a lanyard part and using the coupling ring of the present invention.

The shape of the coupling ring 6 used in the first embodiment is shown in FIG. The base 610 of the coupling ring 6 has a width that allows the belt receiving portion 611 to have a width that overlaps in a substantially X shape, and a height that can secure the thickness of the belt that overlaps the belt receiving portion 611. It is an approximately U-shaped opening type provided with connecting holes 63 at both ends.
The attachment ring 650 has a substantially arc shape through which the annular base end portion of the lanyard can be inserted, and is provided with connecting holes 67 at both ends thereof.

The connection holes 63 at both ends of the base 610 and the connection holes 67 at both ends of the mounting ring 650 are formed using the same drilling die so that the connection holes match each other.
Further, the strength of the coupling ring 6 in which the base 610 and the mounting ring 650 are fastened by the shaft is determined to be not broken at 11.5 kN according to the safety band standard, and the strength is retained.

As shown in FIGS. 1 and 2, the harness body 1 is configured such that a base 610 is passed through a pair of predetermined length belts and cross-polymerized using a flange 5 to hold the belt in a substantially X shape. Necessary parts such as a connecting buckle body 13 and a buckle insertion piece 14 are attached to the shoulder belt 11 and the shoulder belt 11 and the thigh belt 12 are sequentially sewn and completed.
In the lanyard 21 provided with the member locking hook 22 at the front end of a belt or the like, the attachment ring 650 is sewn so as to be positioned at the annular eye portion of the lanyard base end, and the lanyard portion 2 is completed.

Depending on the configuration of the lanyard, there are one lanyard type (FIG. 7) and two lanyards (FIGS. 8 and 9).
In the case of a single lanyard type, the lanyard includes a belt type lanyard 21 (FIG. 7A), a rope type lanyard 23 provided with an impact absorbing device 24 (FIG. 7B), and a narrow woven belt winding type lanyard 25. There are types of (FIG. 7C).
In the case of two lanyards, the same type lanyards are attached or configured by combining two. The two lanyards of FIG. 8 have two rope lanyards 23 attached. The two lanyards of FIG. 9 have two belt lanyards 21 attached (a), two narrow woven belt take-up lanyards 25 attached (b), a belt lanyard 21 and an extension belt 26. (C), a combination of a rope lanyard 23 and an extension belt 26 (d), and a combination of a narrow woven belt take-up lanyard 25 and an extension belt 26 (e).
The above lanyard is one example, and may take another form depending on the user's request.

As shown in FIG. 2, the harness-type safety belt matches the connecting hole 63 of the base 610 attached to the harness body 1 with the connecting hole 67 of the mounting ring 650 attached to the lanyard part 2, and inserts the rivet 43. It is completed by caulking one end thereof to a state where it is fastened by a shaft . Here, a rivet is adopted as the shaft for fastening both, but it is also possible to replace the fastening with a bolt and a nut or the fastening with a shaft and a retaining pin. This is the same in Example 2, Example 3 and Example 4 described below.
The lanyard is illustrated as a belt specification, but may be a rope specification.

The shape of the coupling ring used in Example 2 is shown in FIG. The coupling ring base 610 shown in FIG. 4A is the same as that of the first embodiment.
The attachment ring 660 is provided with a lanyard insertion hole 661 having a size that can be sewed into a ring shape through the base end portion of the lanyard, and is different from the attachment ring 650 of the first embodiment in the shape of the place where the lanyard is attached. . The mounting ring of FIG. 4B has a structure in which a plurality of lanyard insertion holes 661 are provided for the purpose of being used for a two-lanyard type.

The connection hole 63 of the base 610 and the connection hole 67 of the mounting ring 660 have dimensions that allow the connection holes to match each other as in the first embodiment. Further, the strength of the coupling ring 6 obtained by coupling the base 610 and the mounting ring 660 is the same as that of the first embodiment.
Accordingly, also in the second embodiment, as in the first embodiment, the harness body 1 in which the base 610 is incorporated in the belt overlapping intersection, and the lanyard portion in which the lanyard base end is inserted into the lanyard insertion hole 661 of the attachment ring 660 and sewn. 2, the connecting hole 63 of the base 610 and the connecting hole 67 of the mounting ring 660 are matched and fastened with a shaft, whereby the harness body 1 and the lanyard part 2 are combined to complete the harness-type safety belt. .

The shape of the coupling ring used in Example 3 is shown in FIG. In the base 620 of the coupling ring shown in FIG. 5, the width of the belt insertion hole 621 is closed so that the width of the belt overlaps in a substantially X shape and the height of the belt can be secured. It is assumed that a hole is provided and connecting holes 63 are provided at both ends thereof.
The attachment ring 650 is the same as that of the first embodiment.
The connection hole 63 of the base 620 and the connection hole 67 of the mounting ring 650 have dimensions that allow the connection holes to match each other as in the first embodiment. Further, the strength of the coupling ring 6 obtained by coupling the base 620 and the mounting ring 650 also has the same strength as that of the first embodiment.

Therefore, also in Example 3, as in Example 1, the harness main body 1 in which the base 620 was incorporated in the belt overlapping intersection and the attachment ring 650 were sewn so as to be positioned at the annular eye portion at the base end of the lanyard. In the lanyard part 2, the harness body 1 and the lanyard part 2 are combined by matching the coupling hole 63 of the base 620 and the coupling hole 67 of the mounting ring 650 and fastening with a shaft. Complete.

The shape of the coupling ring used in Example 4 is shown in FIG. The coupling ring base 620 shown in FIG. 6 is the same as that of the third embodiment.
The attachment ring 660 is the same as that of the second embodiment.
The connection hole 63 of the base 620 and the connection hole 67 of the mounting ring 660 have dimensions that allow the connection holes to match each other as in the first embodiment. Further, the strength of the coupling ring 6 obtained by coupling the base 620 and the mounting ring 660 also has the same strength as that of the first embodiment.

Accordingly, in the fourth embodiment, as in the first embodiment, in the harness main body 1 in which the base 620 is incorporated in the belt overlapping portion, and in the lanyard portion 2 in which the lanyard base end is inserted into the lanyard insertion hole 661 of the attachment ring 660, The harness main body 1 and the lanyard part 2 are combined by matching the connection hole 63 of the base 620 and the connection hole 67 of the mounting ring 660 and fastening with a shaft, and the harness-type safety belt is completed.

DESCRIPTION OF SYMBOLS 1 Harness body 11 Shoulder belt 12 Thigh belt 13 Articulated buckle body 14 Buckle insertion piece 2 Lanyard part 21 Belt type lanyard 22 Hook 23 Rope type lanyard 24 Shock absorber 25 Narrow woven belt winding type lanyard 26 Extension belt 4 Opening type Connecting ring 41 flat portion 42 hole 43 rivet 5 bridging 51 bridging belt inserting hole 6 bridging ring 610 belt receiving part is an open base 611 belt receiving part 620 belt inserting hole is a closed base 621 belt inserting Hole 63 Base connection hole 650 Lanyard attachment portion is an open attachment ring 651 Lanyard attachment portion 660 Lanyard insertion hole is a closed attachment ring 661 Lanyard insertion hole 67 Attachment hole for attachment ring

Claims (5)

To the harness body consisting of a shoulder belt and thigh belt,
In the method of joining the lanyard part provided with the connecting member at the tip,
A base is placed at the crossover part of the shoulder belt,
Place a mounting ring at the base end of the lanyard,
By the coupling ring formed by fastening the corresponding connection hole of the base and the mounting ring with the shaft ,
A method for manufacturing a harness-type safety belt that connects a harness body and a lanyard. The base is provided with a belt receiving portion having a width of the crossover portion of the shoulder belt of the harness body, and provided with connecting holes at both ends.
The mounting ring has a substantially arc shape through which the annular base end portion of the lanyard can be inserted, and has connecting holes at both ends.
By the coupling ring formed by fastening the shaft with the connection hole of the base and the mounting ring correspondingly,
The method for manufacturing a harness-type safety belt according to claim 1, wherein the harness main body and the lanyard part are connected. The base is provided with a belt receiving portion having a width of the crossover portion of the shoulder belt of the harness body, and provided with connecting holes at both ends.
The mounting ring is provided with one or a plurality of closing holes to which the annular base end portion of the lanyard can be connected, and provided with connecting holes at both ends,
By the coupling ring formed by fastening the corresponding connection hole of the base and the mounting ring with the shaft ,
The method for manufacturing a harness-type safety belt according to claim 1, wherein the harness main body and the lanyard part are connected. The base is provided with a closing hole through which the overlapping portion of the shoulder belt of the harness body can be inserted, and provided with connecting holes at both ends.
The mounting ring has a substantially arc shape through which the annular base end portion of the lanyard can be inserted, and has connecting holes at both ends.
By the coupling ring formed by fastening the corresponding connection hole of the base and the mounting ring with the shaft ,
The method for manufacturing a harness-type safety belt according to claim 1, wherein the harness main body and the lanyard part are connected. The base is provided with a closing hole through which the overlapping portion of the shoulder belt of the harness body can be inserted, and provided with connecting holes at both ends.
The mounting ring is provided with one or a plurality of closing holes to which the annular base end portion of the lanyard can be connected, and provided with connecting holes at both ends,
By the coupling ring formed by fastening the corresponding connection hole of the base and the mounting ring with the shaft ,
The method for manufacturing a harness-type safety belt according to claim 1, wherein the harness main body and the lanyard part are connected.

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