JPS6319611Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a telescoping pole that is mounted on a fixed object such as a separated wall.

This type of pole has an inner tube fitted into an outer tube so that it can be stored and pulled out freely, and its length is fixed and mounted on a fixed object such as a separating wall. Various types of poles have been devised in the past. ing. That is, for example, the first
As shown in the figure, an inner tube 2 is fitted into an outer tube 1 so that it can be freely stored and pulled out, and a male threaded tube 3 with a male thread carved on the outer circumferential surface is attached to the end of the outer tube 1 on the drawer side of the inner tube 2. At the same time, a protrusion 4 integrally protruding from the inner surface of the male threaded tube 3 is fitted into the through hole 5 of the outer tube 1, and an annular wedge is formed between the end of the outer tube 1 and the outer circumferential surface of the inner tube. A pole has been devised in which a female threaded cylinder 7 is inserted into the external threaded cylinder 3, and a female threaded cylinder 7, which is held in contact with the outer end surface of the wedge body 6, is screwed into the male threaded cylinder 3. But this one
Although the inner tube 2 can be fixed at any desired entry/exit position, it is not possible to apply an elongating force in the direction of the tube axis (in the direction of the arrow in the figure) after the length is fixed.
It is not possible to press the end faces of the outer tube and the inner tube into pressure contact, and when mounting between fixed bodies such as separated walls, a means for locking the ends of the outer tube and the inner tube to the fixed body is required.

Therefore, as shown in FIG. 2, pins 8 and 8' are fixed inside the outer tube 1 and the inner tube 2, one end of the coil spring 9 is fixed to one pin 8, and the other pin 8' is fixed to the spring. The pole is located between the coils 9 and is moved forward and backward via the spring 9 by rotating the inner tube 2, and the spring 9 fixes both tubes 1 and 2 at a constant length and applies force in the direction of the tube axis. has been devised. However, since the degree of expansion and contraction of this product is determined by the length of the spring 9, there is a drawback that the degree of adjustment of the length is shortened, and the spring 9 may rust in a humid place such as a bath. There are problems such as decreased elasticity and falling.

This idea allows the fixed tube to be fixed at any position on the inner tube using a chuck mechanism, and the end surface of the fixed tube is brought into contact with the end surface of the tension tube, which is screwed to the end of the outer tube, so that the tension tube can be rotated. The object of the present invention is to provide a telescopic pole which solves the above-mentioned problems by advancing toward the fixed cylinder side and pressing the end faces of the outer and inner tubes against a wall or the like.

Hereinafter, the structure of this invention will be explained with reference to the drawings from FIG. 3 showing one embodiment thereof.

As shown in FIG. 3, an inner tube 11 is freely stored and drawn out within an outer tube 10, and a tension tube 12 is screwed onto the outer surface of the inner tube inlet/output end of the outer tube 10 so as to be movable in the axial direction of the tube. By rotating the tension tube 12, one end thereof can be projected from the end of the outer tube 10. A fixed cylinder 13 and a tightening cylinder 14 are fitted into the outer surface of the inner tube 11 so as to be movable in the cylinder axis direction.

As shown in FIG. 4, the fixed tube 13 consists of a threaded portion 13a having a thread formed on its outer surface, and a conical chuck portion 13b adjacent to the portion 13a and having a plurality of slits 15 formed in the direction of the cylinder axis. On the other hand, the tightening tube 14 is attached to the threaded portion 1 as shown in FIG.
3a, and a tightening portion 14b which is adjacent to the threaded portion 14a and has a tapered surface whose diameter decreases toward the opposite side of the threaded portion 14a. As shown in the figure, the tubes 12, 13, and 14 are positioned such that the fixed tube 13, the chuck portion 13b, and the tightening portion 14a of the tightening tube 14 face the tension tube 12.

An elastic bowl-shaped cap 16 made of synthetic resin, rubber, etc., as shown in FIG. It is preferable to make the condition strong and to be able to mount it at an angle.

The pole of this invention is constructed as described above, and when installing it between fixed bodies such as separated walls, first move the inner tube 11 in and out to match the length of the pole to the distance between the fixed bodies. , when the tightening tube 14 is loosened and the fixed tube 13 is moved together with the tube 14 on the outer surface of the inner tube 11 until it comes into contact with the tension tube 12, and the tightening tube 14 is screwed in this state, the tightening portion 14b
goes up the chuck portion 13b and reduces its diameter, and the chuck portion 13b is pressed against the inner tube 11 and the fixed cylinder 13
And the tightening tube 14 is fixed to the inner tube 11. Next, when the tension tube 12 is rotated and moved toward the tightening tube 14, the tension tube 12 comes into contact with the tightening tube 14, and the outer tube 1
0 and the inner cylinder 11 are pressed in the direction away from each other.
That is, by rotating the tension tube 12, the caps 16 at both ends are brought into pressure contact with the fixed body, so that the pole can be securely attached.

It goes without saying that this pole can be installed not only horizontally, such as between walls, but also vertically, between the ceiling and the floor.

As described above, according to the telescopic pole of this invention, a tension tube protruding from the side end of the outer tube is screwed onto the outer surface of the inner tube entrance/exit side end so as to be movable in the axial direction of the tube, and a fixed tube is attached to the outer surface of the inner tube. and a tightening cylinder is fitted so as to be movable in the axial direction of the cylinder, and the fixed cylinder has a threaded part formed with a thread on its outer surface, and a conical cylindrical chuck part adjacent to the threaded part and formed with a plurality of slits in the axial direction of the cylinder. The tightening tube includes a threaded portion that is screwed into the threaded portion so as to be movable in the axial direction of the cylinder, and a tightening tube that is adjacent to the threaded portion and has a tapered surface whose diameter decreases toward the opposite side of the threaded portion. Since each tube is arranged so that the chuck section and the tightening section are opposed to the tension tube, the length of the pole can be adjusted within the range where the inner tube can go in and out from the outer tube. By turning the tension cylinder at any desired length, the end surfaces of the outer tube and the inner tube can be brought into pressure contact with a mounting fixture such as a wall, and the pole can be mounted reliably and firmly. In addition, all of the parts can be manufactured from rust-free materials such as synthetic resin, and the above effects can be obtained, and there is also an effect that there is no problem even in humid places such as baths.

[Brief explanation of drawings]

Figures 1 and 2 are cross-sectional views of essential parts of each example of a conventional telescopic pole, Figure 3 is a cutaway front view of essential parts of an embodiment of the telescopic pole of this invention, and Figure 4 is a fixed view of the structure shown in Figure 3. It is a perspective view of a cylinder. 10...Outer tube, 11...Inner tube, 12...Tension tube, 13...Fixed tube, 13a...Threaded part, 13
b...chuck part, 14...tightening tube, 14a...
...Threaded part, 14b...Tightening part, 15...Slit.

Claims (1)

[Scope of utility model registration request] In a retractable pole in which an inner tube 11 is fitted into an outer tube 10 so as to be freely stored and drawn out, and the length thereof is fixed and mounted on a fixed object such as a partitioned wall, the inner tube 11 of the outer tube 10 is connected to the entrance and exit side of the outer tube 10. A tension cylinder 12 protruding from the side end is screwed onto the outer surface of the end so as to be movable in the cylinder axis direction, and the inner cylinder 1
A fixed cylinder 13 and a tightening cylinder 14 are fitted into the outer surface of 1 so as to be movable in the direction of the cylinder axis, and the fixed cylinder 13 has a threaded portion 13a formed with a thread on the outer surface and the portion 13 thereof.
It consists of a conical cylindrical chuck part 13b in which a plurality of slits 15 are formed in the cylinder axis direction adjacent to the cylinder a, and the tightening cylinder 14 is a threaded part that is screwed into the threaded part 13a so as to be movable in the cylinder axis direction. 14a and the threaded portion 14 adjacent to the threaded portion 14a and whose inner surface is adjacent to the threaded portion 14a.
The tubes 12, 13, and 14 are arranged such that the chuck portion 13b and the tightening portion 14b face the tension tube 12. A telescopic pole characterized by: