JP3038712U - Telescopic hook - Google Patents

Abstract

(57) [PROBLEMS] To provide a telescopic hook capable of accommodating various hanging lengths with one hook, and to provide an telescopic hook capable of reliably maintaining a telescopic state of a desired length. SOLUTION: This is a hook in which a rod having a hook portion at its tip portion is loosely fitted to a pipe having a suspending member attached at one end portion thereof, and the hook can be freely expanded and contracted. A middle cylinder holding a ball is fixed to the middle part, and a compression coil spring and a movable seat plate are loosely fitted to the outer circumference of the middle cylinder near the rear end of the ball, and there is a step portion with which the movable seat plate abuts. A compression coil spring is formed by loosely fitting an outer cylinder having an inclined surface whose inner diameter decreases toward the tip end into the middle cylinder, and screwing a tightening cylinder into the male screw of the middle cylinder, and tightening the tightening cylinder. The outer cylinder was pushed back against the spring force of, and the ball was pressed against the rod at its inclined surface.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This device is used for hanging products on displays in stores and show windows, for hanging gardening supplies such as flowerpots and baskets, or for hanging various items such as clothes-drying applications. It is about the improvement of the hook.

[0002]

[Prior art]

 Conventionally, an S-shaped hook is often used for such a hanging tool. That is, there is generally adopted a method in which one curved end of the S-shaped hook is hooked at a desired position and the object is suspended at the other curved end with or without a chain, string or the like.

[0003]

[Problems to be solved by the device]

 In such a hanging method, it was necessary to select a hook having a desired length depending on the hanging place, the hanging length, the hanging object, and the like.

Therefore, an object of the present invention is to provide an extendable and retractable hook in which the hook can be extended and contracted and a single hook can accommodate various lengths.

Further, it is an object of the present invention to provide a telescopic hook capable of reliably maintaining the telescopic state of the desired length even when a hanging load is applied to the hook when the telescopic hook is telescopically extended to the desired length.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, a rod having a hook portion at its tip end is loosely fitted to a pipe having a suspending member attached at one end to allow the rod to extend and contract, and is securely fixed in a desired telescopic state. It is possible and not possible to provide a telescopic hook whose desired length does not change even when a hanging load is applied. Specifically, the other end of a pipe with a hanging member attached to one end is provided. At the end of the middle cylinder, a male cylinder with an external thread is attached, and at least two balls are fitted in the receiving holes in the middle of the middle cylinder. The compression coil spring and the movable seat plate are loosely fitted, and the outer cylinder having a step portion with which the movable seat plate abuts and the inclined surface whose inner diameter becomes smaller toward the tip end is loosely fitted to the middle cylinder. Has a female screw that can be screwed into the male screw of the middle cylinder A clamping cylinder that pushes the outer cylinder back against the spring force of the compression coil spring by screwing and moves the balls to the inner surface of the middle cylinder on its inclined surface is provided, and a rod with a hook portion at the tip is tightened. It is a telescopic hook that is loosely inserted into the pipe through the tube and middle tube.

With the telescopic hook having such a structure, when the tightening of the tightening cylinder screwed to the end of the middle cylinder is loosened, the outer cylinder moves due to the spring force of the compression coil spring, and the tilted surface of the outer cylinder moves. Since the pressing of the ball by the ball is released, the sticking of the rod by the ball is released, and the rod can expand and contract. Then, if the rod is pulled out from the pipe and the tightening cylinder is tightened when the rod is extended to the desired length, the outer cylinder is pushed back and the inclined surface presses the ball toward the inner surface of the middle cylinder to fix the rod.

This fixed state is obtained by pushing the outer cylinder back by tightening the tightening cylinder and pressing the ball against the outer peripheral surface of the rod through the inclined surface, so that the tightening of the tightening cylinder is ensured. By doing so, a very strong fixed state can be obtained. That is, although technical means for fixing the adherend by pressing the ball against the adherend using the inclined surface is already known in various technical fields, it is necessary to use the inclined surface on the member side. A means for pressing the ball against the adhered object by the applied spring force is used. In this case, there was a limit to the spring force, and there was a concern that the fixing force would be limited due to fatigue, and there was a concern that the fixing force would decline. However, in the present invention, the spring force is used as a returning means for moving the inclined surface in the direction to release the fixed state. Since a means for press-contacting the adhered material is adopted, a completely and firm adhered state can be obtained by securely tightening the tightening cylinder.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments shown in the accompanying drawings will be described. FIG. 1 is a front view showing an example of an embodiment of a telescopic hook according to the present invention, showing an example of both-end hooks. That is, the suspension member 2 is rotatably attached to one end of the pipe 1 so that the suspension member 2 can be rotatably attached, and the rod 4 having the hook portion 3 at the tip end is loosely fitted from the other end of the pipe to obtain the rod length. The figure shows a telescopic hook that is telescopic.

The suspension member 2 is composed of a hook portion 2a and a shaft portion 2b. The shaft portion 2b is inserted into the fitting 5 to provide a stopper 2c at the end, and the fitting 5 is screwed to the end of the pipe. Therefore, one end of the pipe has a hook structure. Of course, it is not limited to the case of the hook structure, and various members such as a round ring and a chain can be attached by similar means.

As a means for extending and fixing the rod 4 loosely fitted in the pipe 1 to a desired length, the middle cylinder 8 having the ball 7 fitted in the receiving hole 6 and the outer circumference of the middle cylinder 8 are loosely fitted. A compression coil spring 11 and a movable seat plate 12 loosely fitted to the outer circumference of the middle cylinder near the rear end of the outer cylinder 9 and the male screw 8a formed at the end of the middle cylinder 8 and the ball 7 at the rear end side. It is composed of

The middle cylinder 8 is fixed to the end portion of the pipe 1, and the outer cylinder 9 is provided with a step portion 9a with which the movable seat plate 12 abuts, and an inclined surface 9b whose inner diameter decreases toward the tip portion. . Reference numeral 13 is a retaining hole for the outer cylinder 9 attached to the outer periphery of the middle cylinder 8, and 14 is an escape hole for the retaining hole 13 provided in the tightening cylinder 10. The rod 4 having the hook portion 3 at its tip is loosely inserted into the pipe 1 through the tightening cylinder 10 and the middle cylinder 8.

As is apparent from the above configuration, when the tightening cylinder 10 is tightened, the outer cylinder 9 is pushed back against the spring force of the compression coil spring 11, and the ball 7 is moved to the outer peripheral surface of the rod 4 by the inclined surface 9b. Since it is pressed against, it is possible to obtain an extremely strong fixed state corresponding to the tightening force. When changing the expansion / contraction state, if the tightening cylinder 10 is loosened, the outer cylinder 9 and its inclined surface 9b are moved by the spring force of the compression coil spring 11, and the pressing force against the ball 7 and the pressure contact force against the rod 4 are exerted. As it is released, the length can be adjusted freely.

[0014]

[Effect of the invention]

 As is apparent from the above detailed description, the telescopic hook according to the present invention can obtain a hook having a desired length according to a hanging location, a hanging length, a hanging object, etc. with one hook. Since it can be expanded and contracted to the desired length reliably and firmly, there is no concern that the expanded or contracted state will change accidentally when a hanging load is applied to the hook, which is extremely practical. It was possible to provide a telescopic hook.

[Brief description of the drawings]

FIG. 1 is a cutaway front view showing an example of an embodiment of a telescopic hook according to the present invention.

FIG. 2 is an enlarged view of the main part of the hook.

[Explanation of symbols]

1 ... Pipe 2 ... Suspension member 2a ... Hook part 2b ... Shaft part 2c ... Lockout 3 ... Hook part 4 ... Rod
5 ... Mounting tool 6 ... Receiving hole 7 ... Ball 8 ... Middle cylinder 8a ...
… Male screw 9 …… Outer cylinder 10 …… Tightening cylinder 11 …… Compression coil spring 12 …… Movable seat plate

Claims (2)

[Utility model registration claims] 1. A middle cylinder having a male thread at its end is fixed to the other end of a pipe having a suspending member mounted at one end, and at least two balls are received in the middle of the middle cylinder. The compression coil spring and the movable seat plate are loosely fitted to the outer periphery of the middle cylinder near the rear end portion of the ball, and the movable seat plate has a step portion with which the inner diameter becomes closer to the tip portion. An outer cylinder provided with a smaller inclined surface is loosely fitted in the middle cylinder, and has a female screw that can be screwed to the male screw of the middle cylinder, and by screwing the outer cylinder against the spring force of the compression coil spring. The push-push hook is provided with a tightening cylinder for moving the ball toward the inner surface of the middle cylinder on the inclined surface, and a rod having a hook portion at the tip is loosely inserted into the pipe through the tightening cylinder and the middle cylinder. 2. The telescopic hook according to claim 1, wherein the suspending member attached to one end is rotatably provided so as not to come off.