JPS6021102Y2 - Fall prevention safety device - Google Patents

Description

[Detailed description of the invention] This invention is an invention related to the improvement of a safety device used by workers at heights to prevent falls.

Conventionally, in this type of safety device, in order to open and close the rope insertion part 7, the rope insertion holder 1 and the locking member 4 are hinged 5 on one side.
An opening/closing mechanism 6 was provided on the other side, and the opening/closing mechanism 6 was opened/closed so that the rope could be attached to/detached from the rope insertion part 7.

However, during use, there is a possibility that some kind of object may hit the opening/closing mechanism 6 and spontaneously open the rope insertion part 7, leading to a fall accident.

The purpose of the present invention is to eliminate and improve upon the drawbacks of such conventional products and to provide a safe appliance whose opening/closing mechanism will not come off inadvertently.

Aspects of the present invention will now be described in detail with reference to an embodiment illustrated in the accompanying drawings.

As shown in the figure, this embodiment has a rope insertion holder 1 having a U-shaped end surface that has a hinge 11 on one side and an opening/closing member 6 on the other side.
A locking member 4 is provided with an approximate fan-shaped retaining pawl 2 at one end and a rope coupling ring 3 at the other end, and a shaft hole is provided in the center of the locking member 4 to pivot thereto. The shaft 12 is fitted, one end of the pivot shaft 12 is rotatably hinged 5 to the hinge 11 of the rope insertion holder 1, and the other end of the pivot shaft 12 is used to open and close the rope insertion holder 1. The sliding shaft 13 of the member 6 can be opened and closed by fitting or pressing, and the opening/closing member 6 rotates the operating plate 14 against the spring, and subsequently moves the sliding shaft 13 connected thereto to one side. In a structure in which the pivot shaft 12 is unlatched by pulling it out, a safety device 10 having a hook portion 8 at the tip and a pedestal 9 at the base end is inserted into the opening/closing member 6 of the rope insertion holder 1. The hook portion 8 of the safety device 10 is detachably engaged with the shaft end of the opening/closing member 6 to stop the movement of the opening/closing member 6. It is configured as follows.

The rope coupling ring 3 provided on the locking member 4 can be fixed or rotatably attached to one end of the locking member 4 by a ring body provided with one or more attachment holes, or one end of the locking member 4 itself. A mounting hole shall be provided in the section.

To use the present invention, a rope 16 with a hook 15 attached to the tip is connected to the rope coupling ring 3, and a safety device is attached to the main rope 17, which is suspended in advance from a high place on a high-rise structure such as a steel tower. However, in this case, first move the safety device 10 to arrow A.
direction to release the shaft from the hook portion 8.

Next, the operation plate 14 is rotated in the direction of arrow B against the built-in spring to release the lock, and in this state, the operation plate 14 is moved in the direction of arrow C against the built-in spring together with the sliding shaft 13.
Since the hook of the pivot shaft 12 is released, the rope insertion holder 1 and the locking member 4 can rotate about the hinge part 5 to open the rope insertion part 7.

When the main rope 17 is fitted into the opened rope insertion part 7 and the operation is reversed to that described above, that is, the rope insertion holder 1 is closed and the opening/closing member 6 is moved in the opposite direction of the arrow C by the elasticity of the spring. The sliding shaft 13 is fitted into the pivot shaft 12 of the locking member 4 and closed.

Thereafter, the hook portion 8 of the safety rod 10 is hooked onto the end of the sliding shaft 13.

The present invention is constructed as described above, and the safety device 10 is provided to stop the movement of the sliding shaft 13 and the rotation of the operating plate 14, thereby providing triple safety, that is, rotating the operating plate 14 in the direction of arrow B. In addition to the conventional double safety of moving the sliding shaft 13 in the direction of arrow C in this state, triple safety is achieved by rotating the safety device 10 in the direction of arrow A before these operations. Therefore, there are practical effects such as being able to work safely without the parent rope insertion part 7 being opened inadvertently during use.

FIG. 5 shows another embodiment of the present invention, in which the safety device 10
The hook part 8 fits between the operation plate 14 of the opening/closing member 6 and the rope insertion holder 1 or into the notch of the operation plate 14 to close the operation plate 1.
The present embodiment differs from the previous embodiment in that 4 is prevented from rotating or moving, but the other functions and effects are the same.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention, Fig. 2 is a left side view, Fig. 3 is a front view of the safety device, Fig. 4 is a perspective view, and Fig. 5 is a front view showing another embodiment of the present invention. , FIG. 6 is a usage state diagram. Material tone: 1 is the rope insertion holder, 2 is the pawl, 3 is the rope coupling ring, 4 is the locking member, 5 is the hinge, 6 is the opening/closing member, 7 is the rope insertion part, 8 is the hook part, 9 is the Pedestal, 10 is safety device, 11
is a hinge, 12 is a pivot shaft, 13 is a sliding shaft, 14 is an operation plate,
15 is a hook, 16 is a rope, and 17 is a parent rope.

Claims (1)

[Claims for Utility Model Registration] 1. A pivot shaft 12 is inserted into a rope insertion holder 1 and a locking member 4 having a locking claw 2 at one end and a rope coupling ring 3 at the other end. The rope insertion part 7 can be opened and closed by an opening/closing member 6 in which a sliding shaft 13 interlocked with an operating plate 14 which is hinged and has a spring biased on the other side can be freely fitted and removed from the pivot shaft 12. In a fall prevention safety device, a safety device 10 having a hook portion 8 at the tip and a pedestal 9 at the base end is attached to a rope insertion holder 1.
The safety device 10 is pivotably attached to the opening/closing member 6 side, and the hook portion 8 of the safety device 10 is hooked onto a part of the opening/closing member 6 to prevent it from moving or opening. A fall prevention safety device. 2. The fall prevention safety device according to claim 1 of the utility model registration claim, characterized by a structure in which the hook portion 8 of the safety device 10 is unlatched to the end of the sliding shaft 13 of the opening/closing member 6. . 3. The fall prevention safety device according to claim 1, which is a utility model, and is characterized by a structure in which the hook portion 8 of the safety device 10 is hooked onto a part of the operation plate 14 of the opening/closing member 6.