JP2598644Y2 - Telescopic pole - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic pole which can be mounted in a state of being stretched between walls without using a fixing device, and more particularly, to prevent a pole once set from coming loose. Related to telescopic poles.

[0002]

2. Description of the Related Art In a so-called strut type pole or rack,
As a method of stretching and fixing to a wall surface, there are generally known two types of methods, an adjustable type and a non-adjustable type. Among them, the adjust type uses the elastic force of the spring to press the end of the pole against the wall.
In other words, it can be called an elastic force utilization type. The non-adjustment type uses a screw and presses an end portion against a wall surface, and can be called a torque utilization type using a torque generated by a screw.

FIG. 5 shows an example of a non-adjustable telescopic pole. The non-adjustable telescopic pole 1 is obtained by tightening a large-diameter cylinder 2, a small-diameter cylinder 4 inserted from one end 3 of the large-diameter cylinder 2, and a small-diameter cylinder 4 at one end 3. It is composed of a fastening portion 5 as fixing means for regulating the relative position of the small-diameter cylinder 4 with respect to the large-diameter cylinder 2 by frictional force, and contact portions 8 and 9 contacting the walls 6 and 7, A screw cylinder 10 for fine adjustment is screwed into one abutting portion, in this case, one end of the small-diameter cylinder 4, and the entire length of the telescopic pole 1 is reduced by rotating the screw cylinder 10. The screw can be adjusted by the stroke of the screw cylinder 10 by the screw. Therefore, the telescopic pole 1 is attached to the wall 6,
In order to fix it between 7, the fastening part 5 is loosened and the wall 6,
The contact portions 8 and 9 are extended so that the contact portions 7 are in contact with each other, the fastening portion 5 is fixed to set the approximate length, and the screw cylinder 10 is rotated to further lengthen the telescopic pole 1. Contact part 8,
To ensure that the screw 9 is pressed against the walls 6, 7, the screw cylinder 10 is rotated until the screw cylinder 10 can no longer be rotated, and the contact portion 9 advances. As a result, the telescopic pole 1 can obtain the necessary tension, and is fixed between the walls 6 and 7.

[0004]

By the way, when the load W is applied to the telescopic pole 1 as described above, that is, when an object is hung or removed, the telescopic pipe shown in FIG. Sometimes there is a situation where 1 bends or stretches and vibrates. Then, the screw cylinder 10 is loosened, the tension force generated by the screw cylinder 10 is reduced, and the screw cylinder 10 may come off.

The present invention has been made in view of such a situation of the prior art, and an object thereof is to prevent a screw cylinder from being loosened and fix it between walls so that a telescopic pole which does not come off naturally. Is to provide.

[0006]

[SUMMARY OF] To achieve the above object, this invention comprises a first cylindrical body comprising a cylindrical body of large diameter, small diameter to be slidably inserted into the first tubular body inside the and second cylindrical body, and a fixing means for fixing at any position the second tubular body with respect to the first tubular member, and a screw portion provided on at least one end of the pole composed of the first and second cylindrical body This one
Flip portion and screwed with the threaded cylindrical body <br/> and movable in the axial direction of the pole, the telescopic pole which is held in a state where the taut between the wall by the expansion and contraction adjustment of the pole by the screw cylinder , At a portion adjacent to the screw portion of the pole,
Are arranged at predetermined angular intervals along the circumferential direction of the pole.
A stopper receiving member including a plurality of projected ridges.
And the screw cylinder side always has the same screw cylinder inside.
Projecting toward the part and elastically engaging with one of the ridges
A stopper for restricting the rotation of the slack side of the threaded cylindrical body is characterized by being integrally provided.

In this case , one end of the stopper is
A band or linear elastic body fixed to the
A part thereof elastically engages with the ridge.
Is bent toward the inside of the screw cylinder
In both cases, the other end of the elastic body releases the restriction of the stopper.
It is preferable that the operating end protrudes outside the screw cylinder body .

[0008]

According to the above construction, after the telescopic pole is once fixed between the walls and the like by the screw cylinder, even if the pole vibrates due to suspension of the load or removal of the pole, the screw cylinder is stopped by the stopper. Since the body is not loosened, it is possible to reliably prevent the body from coming off naturally from between the walls. In addition, vinegar
With the end of the topper as the operating end, project outside the screw cylinder.
By releases the easy regulation of the stopper through the operating end, it is possible to remove the extension contraction pole easily.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings, and the present invention will be described in detail.

FIG. 1 is a perspective view of a main part showing a contact portion of a telescopic pole according to this embodiment. In the following description, the same parts as those in the above-described conventional example are denoted by the same reference numerals, and overlapping description will be omitted.

In FIG. 1, a screw portion 12 is formed at an end portion 11 of the small-diameter cylindrical body 4 .
Stopper receiving member 1 having a plurality of ridges 13 on the outer periphery
4 are provided integrally. In this case, each ridge 13
If it is formed with a predetermined width along the axial direction of the cylinder 4,
Each of them is arranged at predetermined angular intervals along the circumferential direction.
Is placed . On the other hand, threaded cylindrical body 10, as can be seen from longitudinal sectional view of FIG. 2, is formed a screw-like lip 15 for screw and screwing threaded portion 12 to the inner surface Tei Rutotomoni always threaded cylindrical body 10 And a conical cylindrical body 17 which is open at one end and integrally provided with a locking member 16 which is elastically protruded into the inside of the inside and has a locking member 16 which is elastically engaged with the ridge 13 of the stopper receiving member 14. Figure 3 The locking member 16 is a longitudinal cross-sectional view of FIG. 2 and FIG. 2, as can be seen from FIG. 4, the tapered tubular body 17
Projecting into the inner side of the ridge 13 and locking (FIG. 4 ) or unlocking (FIG. 3 ) the ridge 13.
And a stopper means is configured comprising a locking member 16. Ru Tei <br/>.

The locking member 16 is formed into a shape having elasticity by cutting out the outer periphery of the conical cylinder 17 and normally has an operating end protruding from the surface of the conical cylinder 17 as shown in FIG. 18 is released in the direction of arrow A in FIG. The projection 13 has a flat contact portion 13a with the locking member 16 and a non-contact portion 13b with a curved surface in order to ensure the locked state at the time of locking. . Other components that are not particularly described are all configured in the same manner as the conventional example of FIG.

With this configuration, the conical cylinder 17 side of the screw cylinder 10 is pressed against the wall 7 and the conical cylinder 17
Is rotated, the locking member 16 is locked by the protruding ridges 13 that are sequentially locked in accordance with the rotation of the conical cylindrical body 17 each time the protruding ridges 13 are crossed. When the conical cylindrical body 17 is rotated in such a manner as to be unable to rotate, the necessary tension force is obtained, and the telescopic pole 1 is securely fixed between the walls 6 and 7. In this state, even if a load is applied or the load is removed and a vibration-like force is applied to the telescopic pole 1, the rotation of the conical cylindrical body 17 in the loosening direction causes the locking between the locking member 16 and the ridge 13. And the conical cylinder 17 is not loosened.

When removing the telescopic pole 1 from the walls 6 and 7, the operating end 18 of the locking member 16 is moved to the direction indicated by the arrow A in FIG.
When pressed in the direction, the operating end 18 of the locking member 16 rises and the locking state of the locking member 16 against the ridge 13 is released, so that the conical cylindrical body 17 is easily rotated in the loosening direction to loosen. I can do it.

In the above-described embodiment, the contact portion 9 is rotatably fitted to the screw cylinder 10, but the contact portion 9 is provided integrally with the screw cylinder 10, and the surface that contacts the wall 7. , A synthetic resin having a high friction coefficient may be used, or a sheet having a high friction coefficient may be attached. In addition, the case where the object is hung on the telescopic pole has been described. However, it is needless to say that the present invention can be applied to a telescopic shelf using two telescopic poles and crossing a bar between them.

[0016]

[Effect of the invention] As is apparent from the foregoing description, according to the invention of this, since no longer be threaded cylindrical body is loosened by the stopper, loosening of threaded cylindrical body is prevented, after securing the walls Vibration due to load application and load release
Even if a movement similar to the above occurs, there is no possibility that the telescopic pole will come off naturally. In addition, since the stopper is provided integrally with the screw cylinder, the number of components is the same as that of the conventional telescopic pole, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a structure of a contact portion of a telescopic pole according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a structure of a contact portion of a telescopic pole according to the embodiment.

FIG. 3 is a cross-sectional view showing a non-locked state of a locking member in FIG. 2;

FIG. 4 is a cross-sectional view showing a locked state of a locking member in FIG. 2;

FIG. 5 is an explanatory view showing an example of a conventional telescopic pole in a used state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Telescopic pole 2 Large-diameter cylinder 3 One end 4 Small-diameter cylinder 5 Tightening part 6,7 Wall 8,9 Contact part 10 Screw cylinder 11 End part 12 Screw part 13,15 Protrusion 14 Stopper receiving member 16 Stopper 17 Conical cylinder 18 Operating end

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) A47G 25/02 A47B 96/02 A47B 96/14 F16B 7/12 F16B 9/02 F16B 39/02

Claims (2)

(57) [Scope of request for utility model registration] 1. A first cylindrical body comprising a large-diameter cylindrical body , a small-diameter second cylindrical body slidably inserted into the first cylindrical body , and the second cylindrical body being connected to the first cylindrical body. A fixing means for fixing at an arbitrary position with respect to the above, a screw portion provided at at least one end of the pole made of the first and second cylindrical bodies ,
Screwed and a axially movable threaded cylindrical body of the pole, the telescopic pole which is held in a state where the taut between the wall by the expansion and contraction adjustment of the pole by the threaded cylindrical body, said threaded portion of said pole The port adjacent to the
That are arranged at predetermined angular intervals along the circumference of the
The stopper receiving member including the ridge is provided
On the screw cylinder side, always face the inside of the screw cylinder.
A stopper that elastically engages with one of the protrusions and regulates rotation of the threaded cylinder on the loose side is integrally provided .
Telescopic pole characterized by being . 2. The stopper has one end on the side of the screw cylinder.
Made of a band-like or linear elastic body fixed to the
The part is elastically engaged with the ridge.
While being bent toward the inside of the screw cylinder,
The other end of the elastic body is used to release the stopper.
The telescopic pole according to claim 1, wherein the end protrudes outside the screw cylinder .