JPS5929169Y2 - carabiner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a carabiner that is used for hanging machines and instruments, or for connecting ropes to instruments.

The end of the operating rod is rotatably connected to one end of the C-shaped carabiner body, and the operating rod is given elasticity by a spring, so that the other end of the carabiner main body, which is the end of the operating rod, is In a normal carabiner that is press-fitted inward, when the operating lever is pressed inward, the carabiner body rotates inward, and the hook formed between both ends of the body opens for release. Since the section is open, there is a problem in that the reliability of hanging and connection is lacking.

In order to solve this problem, a thread is formed on the outer periphery of the operating shaft, and a cylindrical body that is threadedly engaged with the thread is positioned at a portion that straddles the end of the operating shaft and the other end of the carabiner body. There are carabiners designed to prevent the shaft from rotating inward, but vibrations applied to the carabiner tend to cause the barrel to rotate and move toward the operating lever, ensuring that the operating lever is held in the closed position. The disadvantage is that it cannot be done.

Therefore, the object of this invention is to make it possible to reliably hold the opening/closing operation lever of the open portion of the carabiner body in the closed state.

On the ground, the configuration of this invention will be explained based on the attached drawings.

As shown in the figure, the carabiner main body 1 has a C-shape, and an opening 2 for unlatching is provided between both ends thereof.

An operating rod 4 is rotatably connected to one end of the carabiner body 1 via a pin 3, and the elasticity of a leaf spring 5 attached to the connecting portion deflects the operating rod 4 and causes the operating rod to move. The end of 4 is press-fitted to the inside of the other end of the carabiner body 1.

A thread 6 is formed on the outer periphery of the operating rod 4, and a female thread 8 that engages with the screw 6 is provided on the inner periphery of a cylindrical body 7 fitted on the outside of the operating rod 4.

The other end of the carabiner body 1 is provided with a stopper projection 9 for restricting the axial movement of the cylinder T. When the tip of the cylinder 7 comes into contact with this projection 9, the end of the carabiner body 1 The cylindrical body 7 stops at a position where it straddles the end of the operating rod 4.

Further, a horizontal hole 10 is formed at the other end of the carabiner body 1 at a position closer to the end than the position where the protrusion 9 is formed, and one end of the horizontal hole 10 is formed by fitting the plug body 11. Closed.

A ball 12 and a spring 13 that presses the ball 12 outward are housed in the horizontal hole 10, and the end of the horizontal hole 10 is formed to have a small diameter so that a part of the outer circumference of the ball 12 is on the outside. This ball 12 is prevented from being pulled out in a state where it protrudes.

On the other hand, a circumferential groove 14 is formed at the inner circumferential end of the cylinder 7 fitted on the outside of the operating rod 4, and a protrusion 9r connects the tip of the cylinder 7.
c. When brought into contact, part of the outer periphery of the ball 12 is in the circumferential groove 14.
It is designed to fit.

Now, when the cylindrical body 7 is rotated and moved toward the other end of the carabiner body 1, the tip of the cylindrical body 7 comes into contact with a part of the outer periphery tc of the ball 12 protruding from the horizontal hole 10, and from this, If the cylinder body 7 is further moved in the axial direction, the ball 12 will be pushed into the horizontal hole 10.

When the tip of the cylindrical body 7 moves to a position where it comes into contact with the stopper projection 9, the circumferential groove 14 of the cylindrical body 70 aligns with the horizontal hole 10, and a part of the outer circumference of the ball 12 fits into the circumferential groove 14. By the engagement of the cylindrical body 7 with the circumferential groove 14, it is possible to prevent the cylindrical body 7 from naturally rotating and moving toward the operating rod 4.

As described above, in this invention, the cylindrical body is rotated and moved in the axial direction, and the end of the cylindrical body (the carabiner body) is brought into contact with the strut provided at the other end. As a part of the outer circumference of the ball fits into the circumferential groove, the cylindrical body located between the other end of the carabiner body and the end of the operating rod rotates due to vibration etc., causing the operating shaft to rotate. It is possible to prevent the operation shaft from moving in the opposite direction, and it is possible to reliably hold the operating shaft in the closed state.

[Brief explanation of drawings]

Figure 1 is a partially cutaway front view of the carabiner according to this invention;
Fig. 2 is a longitudinal sectional front view of the same cylinder as above positioned at the part spanning the end of the operating rod and the other end of the carabiner body;
FIG. 3 is a longitudinal sectional side view showing the main parts of the same as above. DESCRIPTION OF SYMBOLS 1...Carabiner body, 2...Opening part, 4...Operation rod, 6...Screw, 7...Cylinder body, 8...Female thread, 9
...Protrusion, 10...Horizontal hole, 12...Ball, 13
... Spring, 14... Circumferential groove.

Claims (1)

[Scope of utility model registration request] A carabiner main body in a C-shape or a similar shape, and a hook formed between both ends of the main body that is connected to one end of the main body, and an operating rod that opens and closes the release opening from the inside of the main body. a screw is formed on the outer periphery of the operating rod,
A female thread that engages with the screw is provided on the inner periphery of the cylindrical body fitted to the outside of the operating rod, and a female thread is provided at the other end of the main body so as to straddle the end of the operating rod and the other end of the main body. In position,
In the carabiner provided with a stopper for restricting axial movement of the cylindrical body toward the main body, a horizontal hole is formed in the other end of the main body at a position closer to the end than the stopper mounting position. A ball and a spring for pressing the ball outward are housed in the horizontal hole of the cylindrical body, and a means is provided to prevent the ball from being pulled out with a part of the outer periphery protruding from the horizontal hole. A carabiner characterized in that the inner peripheral end is provided with a circumferential groove in which a part of the outer circumference of the ball can engage.