JPH05824U - Master rope attachment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a master rope fixture that can be installed using the main building of the ridge. [Constitution] The legs 11 and 12 of the pedestal 1 are attached to the purlin 3 with bolts 4
・ Install with the nut 41. The shaft portion 22 of the locking tool 2 made of eyebolts is screwed into the upper plate portion 13 of the pedestal 1 for connection.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a main rope attachment for roof work.

[0002]

[Prior Art]

 Since work on the roof involves risks such as a fall accident, workers often use safety ropes. In the past, the safety rope was hung on the steel frame of the roof frame.

On the other hand, in Japanese Utility Model Laid-Open No. 2-149061 proposed by the applicant of the present invention, holes are made at a plurality of positions on the top of the roof frame, and the holes are attached to the roof frame. There is one in which a worker can freely move by straddling a master rope between a plurality of fasteners and locking the end of the slave rope to the master rope.

[0004]

[Problems to be solved by the device]

 However, the former had poor workability because it was necessary to re-hook the safety rope to another place every time the work place was moved. The latter cannot be used for roof frames that do not allow such holes, since the holes for attaching the fasteners have to be drilled in the roof frame, and the roof frame is not very strong. Since it cannot be used without a roof, the types of roof that can be used were limited.

The present invention has been made in view of the above circumstances, and can be used not only as a locking tool for hooking the safety rope, but also as a locking tool for stretching the master rope. The purpose of the present invention is to provide a main rope attachment that can be installed and can be installed using the main building of the ridge.

[0006]

Means for Solving the Problems A master rope attachment of the present invention is a pair of legs that are fitted between two purlins that are installed to face each other across a ridge and are separately attached to the purlins. And a pedestal having an upper plate portion extending between the legs, and a locking tool screwed and coupled to the upper plate portion of the pedestal.

[0007]

[Action]

 In the master rope attachment, the pedestal is fixed by attaching a pair of legs to the purlin, and the locking tool is screwed and coupled to the pedestal. This locking device is used for hooking safety ropes and stretching the main rope along the ridge.

[0008]

【Example】

 FIG. 1 shows a master rope attachment A according to an embodiment of the present invention. The master rope attachment A comprises a pedestal 1 and a locking tool 2. The pedestal 1 is made of a high-strength steel plate, and integrally includes leg portions 11 and 12 that are in a narrowed state and an upper plate portion 13 that extends between the upper ends of the leg portions 11 and 12. . The leg portions 11 and 12 are provided with long holes 14 and 15 which are long in the vertical direction, respectively, whereas the upper plate portion 13 is provided with a hole 16 in the center portion thereof. In addition, the nut 17 is fixed by an appropriate means such as welding. As shown in FIG. 3, the locking tool 2 is formed so that an eyebolt is formed by a ring-shaped hooking portion 21 and a shaft portion 22. The hook portion 21 has a male screw portion 23 protruding at the lower end, and a tightening nut 24 is screwed to the male screw portion 23. The shaft portion 22 has a female screw portion 26 corresponding to the male screw portion 23 at one end and a mounting screw portion 27 that penetrates the hole 16 and is screwed to the nut 17 at the other end. By screwing the male screw portion 23 to the female screw portion 26 and tightening the tightening nut 24, the male screw portion 23 is firmly fixed without being removed from the female screw portion 26 even if the direction of the ring-shaped hooking portion 21 is freely set. You can do it.

FIG. 2 shows a state in which the main rope attachment A is attached to the ridge of the roof. The left side of the figure shows the ridge where a wooden one is used as the purlin 3, and the right side shows As the main building 4, a ridge section in which a steel section steel is used is shown. The pedestal 1 of the master rope attachment A is fitted between the purlins 3 and 3 that are installed opposite to each other across the ridge, and the legs 11 and 12 of the pedestal 1 are attached to the corresponding purlins 3 and 3, respectively. Abut. Then, the bolts 4 and 4 inserted into the purlins 3 and 3 are passed through the long holes 14 and 15 of the leg portions 11 and 12, and the nuts 41 and 41 are fastened to the bolts 4 and 4. At this time, it is possible to adjust the positions of the bolts 4 and 4 by using the long holes 14 and 15. A mounting screw portion 27 at the other end of the shaft portion 22 of the locking tool 2 is screwed into the nut 17 of the pedestal 1. The hook portion 21 of the locking tool 2 screwed and connected to the pedestal 1 in this manner projects above the roof forming members 5 and 5 such as a roof frame and a roof plate.

Then, as shown in FIG. 4, the master rope 6 is tensioned between the hooking portions 21 and 21 of the master rope fixtures A and A attached to the roof ridge at predetermined positions, and the master rope 6 has a child. If the end of the rope 7 is movably locked, the worker M can move while freely moving on the roof forming members 5 and 5 with his body connected to the child rope 7. can do.

In this embodiment, the locking tool 2 is formed of an eyebolt, and the nut 17 for screwing and connecting the mounting screw portion 27 of the shaft portion 22 of the eyebolt to the pedestal 1 is fixed to the pedestal 1. The present invention is not limited to such a configuration. For example, even if the shaft body provided with the threaded portion is projected on the upper plate portion 13 of the pedestal 1 and the hooking tool and the screw hole capable of being screwed into the shaft body are formed on the locking tool 2 side. Good.

[0012]

[Effect of the device]

 The main rope attachment of this invention is of a type that is fixed to the purlin and does not require any holes to be formed in the roof frame, so when the roof frame is not very sturdy or the roof frame cannot be perforated. It can also be used. In addition, since it can be used to stretch the master rope along the ridge, it is not only suitable for efficient work using the master rope and child rope, but also used for hooking safety ropes. It also has the effect of being suitable for work using safety ropes.

[Brief description of drawings]

FIG. 1 is a front view of a master rope attachment according to an embodiment of the present invention.

FIG. 2 is a front view showing a state in which the master rope attachment is attached to a ridge.

FIG. 3 is an exploded front view of a hook portion.

FIG. 4 is a schematic explanatory view of a usage state of the master rope attachment.

[Explanation of symbols]

 A Master rope attachment 1 Base 2 Locking fixture 3 Purlin 11, 12 Legs 13 Upper plate

Claims (1)

[Claims for utility model registration] [Claim 1] A pair of legs that are fitted between the purlins that are installed to face each other across the ridge and are separately attached to the purlins, and between the legs A master rope attachment including a pedestal having an extending upper plate portion and a locking tool screwed and coupled to the upper plate portion of the pedestal.