JPH0234492Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a connecting fitting attached to a lifeline or the like.

[Problems to be solved by conventional techniques and ideas]

With conventional connecting fittings, it is important to connect securely, but we also place importance on good appearance, so the opening edge of the ring body is angular, so when attaching or detaching ropes or wires, it is difficult to The problem was that the rope could get caught, which made putting it on and taking it off a bit slow.

In particular, in order to prevent life-threatening accidents, such as connecting fittings used for lifelines, fastness of as little as 0.1 seconds is required for attachment and detachment.

[Means for solving problems]

The present invention solves this problem, and its structure will be described in detail with reference to the accompanying drawings.

In a connecting fitting in which an opening/closing rod 2 that slides inward to form an opening is provided in a resilient state in a part of a ring body 1 of various shapes, the opening end 1' of the ring body 1 engages with the tip of the opening/closing rod 2. The inner side of the end surface is cut into a slope a that is approximately parallel to the open state of the opening/closing rod 2, and the corners 3, 3', 3'', 3 of the opening end 1' including both ends of this slope a are dropped to form a curved surface. .

[Effect]

For example, to explain the case where this product attached to the life line 7 is hung on the main line 8, the cylindrical nut 5, which is fitted into the interlocking engagement part 4 and locks the opening/closing of the opening/closing rod 2, is turned and engaged. By exposing the part 4 and pushing the tip of the opening/closing rod 2 into the main rope 8, the engaging part 4
opens, the main rope 8 enters the ring body 1, and at that moment the opening/closing rod 2 is closed by the spring 6, so that the product is hung on the main rope 8.

Then, turn the cylindrical nut 5 in the opposite direction to move it to the meshing engagement part 4 and lock it.

Conversely, when removing it from the main rope 8, turn the cylindrical nut 5 again to expose the meshing engagement part 4, and remove the opening/closing rod 2.
is pushed inward with finger pressure to open the meshing engagement part 4, and this state is maintained to remove it from the master rope 8.

Both the loading and unloading operations must be completed as quickly as 0.1 seconds to prevent life-threatening accidents.

At this time, the inner side of the end surface of the open end 1' of the ring body 1 is cut into a slope a that is approximately parallel to the open state of the opening/closing rod 2, and the corners 3, 3' of the open end 1' including both ends of this slope a are 3″,
3 is formed into a curved surface, the main rope 8 does not get stuck and can be hung and removed smoothly, and the distance between the opening end 1' of the ring body 1 and the opening/closing rod 2 is also the same as that of the conventional one. It is wider than when the corners are not shaved off, making insertion and withdrawal easier.

〔Example〕

In this invention, the ring body 1 has various shapes,
There are various structures such as those with or without a cylindrical nut 5, but the point is that it can be applied to all connecting fittings called carabiners (preferably made of stainless steel) having an opening/closing rod 2.

In the drawing, a protrusion 9 formed at the open end 1' of the ring body 1, which is thinner than the ring body 1, is fitted with a split groove 10 formed at the base of the opening/closing rod 2, and is pivoted by a shaft rod 11. , the outer corner 2' of the tip of the opening/closing rod 2 is also cut off to form a curved surface so that the rope will not get caught.

A locking recess 13 is formed on the bottom surface of the split groove 10, a locking step 14 is formed on the inside of the protrusion 9, and one end of the plate-shaped spring 6 is locked to the locking step 14. The other end of the spring 6 is locked in the locking recess 13 so that the opening/closing rod 2 is always closed.

In addition, the outer edge corner 15 of the base of the opening/closing rod 2 is also shaved off to form an arcuate curved surface, and the outer edge corner 15' of the protrusion 9 is formed into an arcuate curved surface.
The figure shows a case in which the rope is formed into a substantially arcuate curved surface to prevent the rope from getting caught.

The figure shows a case where a male screw 16 is formed approximately in the middle of the opening/closing rod 2, a hexagonal cylindrical nut 5 having a female screw 17 that is screwed into the male screw 16 is screwed, and a stopper 12 is arranged. .

Thin engagement groove 18' at the tip of the opening/closing rod 2
A locking body 18 is provided protrudingly provided, and a locking recess 19 with which the locking body 18 engages is provided near the open end 1' of the ring body 1.
Although a case is shown in which the interlocking engagement portion 4 is formed into which the thin engagement portion 18' fits, the same effect may be achieved even if other engagement structures are adopted.

[Effect of idea]

Since the present invention is configured as described above, it has the following effects.

When opening the opening/closing rod on a rope, pile, etc. and hanging the ring, the inner corner of the open end of the ring at the meshing engagement part where the circumferential surface of the rope, rope, etc. is likely to come into contact with the opening/closing rod is in the open state. The slopes are cut almost parallel, and the corners of the opening end, including both ends of the slope, are formed into curved surfaces, allowing ropes, ropes, etc. to pass through smoothly without getting caught in the opening of the ring. Since the ropes and ropes are not damaged, their lifespan is lengthened accordingly, and the interval between their passages is widened by the amount of the slope removed, making it easier to attach and detach the ropes and ropes.

Particularly in the case of connecting metal fittings used to prevent accidents involving life, they must be installed and removed instantly, and even 0.1 seconds faster will lead to accident prevention. It becomes an excellent connecting fitting that reliably fulfills its mission.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway front view, Fig. 2 is a front view with the opening/closing rod open, and Fig. 3 is a front view of the open end of the ring body. The enlarged front view, FIG. 4, is a conventional front view. a... Slope, 1... Ring body, 1'... Open end, 2
...opening/closing rod, 3, 3', 3'', 3... corner.

Claims (1)

[Scope of utility model registration request] In a connecting fitting in which an opening/closing rod that slides inward to form an opening is provided in a resilient state in a part of a ring body of various shapes, the opening/closing rod is attached to the inside end face of the open end of the ring body that engages with the tip of the opening/closing rod. A connecting fitting characterized in that it is formed into a curved surface by cutting an inclined surface substantially parallel to the open state of the opening, and cutting corners of the opening end including both ends of the inclined surface.