JP3028704U - Telescopic pole - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a telescopic pole which has a simple structure and can be constructed at low cost, and can exert a strong tension force. A telescopic pole A has an outer cylinder 1 and an inner cylinder 2 that are inserted and removed freely, a fixing screw 3 that fixes the outer cylinder 1 and the inner cylinder 2 to each other at arbitrary positions, an outer cylinder 1 and an inner cylinder. Two
The first and second contact bodies 4, which are arranged at the outer ends of the
5 and 5. Between the first contact body 4 and the outer end of the inner cylinder 2, the first contact body 4 and the inner cylinder 2 are rotated as the operating body 12 is rotated.
Is provided with a screw mechanism 6 capable of adjusting the axial distance from
A spring mechanism 16 containing a compression spring 19 is provided between the outer end of the outer cylinder 1 and the second contact body 5.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a telescopic pole that can be used for various purposes such as indoor clothes drying, clothes hanging columns, and partition columns.

[0002]

[Prior art]

 Conventionally, as this type of pole, as in Japanese Utility Model Laid-Open No. 61-156711, an outer cylinder and an inner cylinder, which are freely inserted and removed, and an outer cylinder and an inner cylinder are fixed to each other at arbitrary positions. Between the fixture, the first and second abutment bodies arranged at the outer end portions of the outer cylinder and the inner cylinder which are separated from each other, and between the first abutment body and one outer end portion of the outer cylinder and the inner cylinder. A telescopic pole provided with a screw mechanism that is provided and has an axial distance between the first abutment body and one of the outer ends of the outer cylinder and the inner cylinder is known. The screw mechanism has a tightening body having a bolt and a tubular body having a nut that is screwed onto the bolt. By compressing a compression spring arranged between one of the outer ends of the cylinder and the inner cylinder, the compression spring is attached so as to be stretched between the opposing wall surfaces.

[0003]

[Problems to be solved by the device]

 However, in the case of the telescopic pole having the above-mentioned structure, the screw mechanism and the spring mechanism are provided at one end of the pole, so that the structure is very complicated, the number of parts is large, and it takes time to assemble. There are drawbacks. Moreover, since the space for arranging the compression spring is restricted, it is difficult to arrange a compression spring having a large repulsive force, and a large tension force cannot be obtained. On the contrary, since the space for arranging the compression spring restricts the space for arranging the screw part, the screw shaft becomes thin and it is necessary to use a metal bolt as the screw shaft. Therefore, insert molding is required, resulting in an increase in cost.

Therefore, an object of the present invention is to provide a telescopic pole which has a simple structure and can be constructed at low cost, and can exert a strong tension force.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an outer cylinder and an inner cylinder that are inserted and removed freely, a fixture that fixes the outer cylinder and the inner cylinder to each other at an arbitrary position, and a space between the outer cylinder and the inner cylinder. In the telescopic pole provided with the first and second abutment bodies arranged at the outer end portion, the first abutment body is provided between the outer end portion of one of the outer cylinder and the inner cylinder, A screw mechanism that can adjust the axial distance between the first contact body and one outer end of the outer cylinder and the inner cylinder as the operation body rotates, and the other outer end of the outer cylinder and the inner cylinder and the second contact. A spring mechanism provided between the contact body and a compression spring is provided.

After the outer cylinder and the inner cylinder are inserted and removed and the overall length is roughly adjusted so as to correspond to the distance between the opposing wall surfaces, the outer cylinder and the inner cylinder are fixed with a fixture. Next, when the operating body is rotated, the axial distance between the first contact body and the outer end of one of the outer cylinder and the inner cylinder is increased by the screw mechanism, and the compression spring of the spring mechanism is compressed. Due to the repulsive force of the compression spring, the first and second contact bodies are pressed against each other between the opposing wall surfaces.

In the present invention, since the spring mechanism and the screw mechanism are provided at both ends of the pole, the spring mechanism and the screw mechanism can be arranged without being restricted by space. Therefore, a strong spring can be used as a compression spring, and a strong tension force can be exerted. In addition, since there are few restrictions on the layout of the screw mechanism, a structure with high strength can be adopted for the screw mechanism, which increases the degree of freedom in design.

The spring mechanism is fitted to a spring piece fitted and fixed to the other outer end portion of the outer cylinder and the inner cylinder, slidably fitted in the axial direction with respect to the spring piece, and prevented from coming off in the separating direction. In addition, it is desirable that the guide cap be fitted and held in the fitting hole of the second contact body and that the compression spring be interposed between the spring piece and the guide cap. In this case, since the spring mechanism can be preassembled, the work of assembling it on the pole is simplified and the size can be reduced, which is advantageous. Further, the compression spring is held between the spring piece and the guide cap without rattling, and is not exposed to the outside.

The above-mentioned screw mechanism is composed of a screw piece having a male screw fitted and fixed to one of the outer ends of the outer cylinder and the inner cylinder, and an operating body having a female screw screwed into the male screw of the screw piece. Is desirable. In this case, the structure of the screw piece and the operating body can be simplified, the play can be reduced, and a strong screw strength can be obtained at low cost without using an insert part.

[0010]

[Embodiment of device]

 1 and 2 show an example of a telescopic pole A according to the present invention. The telescopic pole A includes an outer cylinder 1 and an inner cylinder 2 which are inserted into each other so as to be freely inserted and removed, a fixing screw 3 for fixing the outer cylinder 1 and the inner cylinder 2 to each other, and outer end portions of the outer cylinder 1 and the inner cylinder 2 which are separated from each other. Provided between the first and second abutment bodies 4 and 5, the first abutment body 4 and the outer end portion of the inner cylinder 2, the first abutment body 4 and the outer side of the inner cylinder 2 being disposed. The screw mechanism 6 capable of adjusting the axial distance to the end portion and the spring mechanism 16 provided between the outer end portion of the outer cylinder 1 and the second contact body 5 and having the compression vane 19 incorporated therein are provided. I have it.

Both the outer cylinder 1 and the inner cylinder 2 are metal pipes whose outer surfaces are coated with resin. A resin sleeve 10 is fitted and fixed to an inner end portion of the outer cylinder 1, and slidably guides the inner cylinder 2. A metal nut 10a is embedded and fixed in the sleeve 10 in the orthogonal direction, and a fixing screw 3 as an example of a fixing tool is screwed into the nut 10a. When the knob 3a of the fixing screw 3 is turned, the tip portion of the fixing screw 3 bites into the inner cylinder 2 while piercing, and the outer cylinder 1 and the inner cylinder 2 can be strongly fixed.

As shown in FIG. 3, the screw mechanism 6 is composed of a resin screw piece 11 and a resin operating body 12 screwed onto the screw piece 11. The screw piece 11 is formed in a cylindrical shape, and one end 11 a thereof is fitted and fixed to the outer end of the inner cylinder 2. A male screw 11b is integrally formed on the outer circumference of the other end of the screw piece 11, and the outer diameter of the male screw 11b is substantially equal to the outer diameter of the inner cylinder 2. The operating body 12 is also formed in a cylindrical shape, and two vane plates 12a are projectingly provided at symmetrical positions on the outer peripheral portion thereof. A female screw 12b that is screwed into the male screw 11b of the screw piece 11 is formed on the inner peripheral portion of the operating body 12, and an annular protrusion 12c is provided on the outer periphery of one end of the operating body 12.

A first guide cap 13 is rotatably fitted on the outer circumference of one end of the operating body 12. An appropriate number of small claws 13a are formed on the inner surface of the opening of the guide cap 13, and when the guide cap 13 is fitted to the outer periphery of one end of the operating body 12, the claws 13a engage the annular projection 12c. Then, the guide cap 13 is prevented from coming off from the operating body 12. The outer side of the first guide cap 13 is covered with a cushion cap 14 made of a rubber-like elastic body, and the cushion cap 14 is fitted and held in a fitting hole 4a formed in the first contact body 4. . The cushion cap 14 allows the first guide cap 13 to be tilted at a predetermined angle with respect to the first contact body 4.

The first abutting body 4 is made of a hard resin, and a boss portion 4b having the fitting hole 4a formed on the front side thereof is provided in a protruding manner. A flange portion 4c protruding in the outer peripheral direction is provided on the outer peripheral portion of the boss portion 4b. Are formed as a single body. On the back side of the flange portion 4c, a cushion sheet 15 made of a rubber-like elastic material is adhered on almost the entire surface. It should be noted that an insertion hole is appropriately provided in the flange portion 4c of the first abutting body 4, the expansion / contraction pole A is attached to the facing wall surface W, and then a screw is inserted into the insertion hole to be fixed to the wall surface W. You may do it.

The spring mechanism 16 is made of a resin-made spring piece 17 fitted and fixed to the outer end portion of the outer cylinder 1 as shown in FIG. 4, and slid in the axial direction with respect to the spring piece 17 and the outer cylinder 1. It is composed of a resin-made second guide cap 18 which is freely fitted and a compression coil spring 19 which is arranged between the spring piece 17 and the second guide cap 18 in a slightly compressed state. A shaft portion 18a is integrally projectingly provided toward the spring piece 17 at the center of the second guide cap 18, and the shaft portion 18a is slidably inserted into a central hole 17a of the spring piece 17. There is. Then, the screw piece 21 is screwed from the spring piece 17 side to the shaft portion 18a via the washer 20, whereby the spring piece 17 and the second guide cap 18 apply an initial compression load to the compression coil spring 19. In the state, it is prevented from coming off in the separating direction.

The outside of the second guide cap 18 is covered with a cushion cap 22 made of a rubber-like elastic body, and the cushion cap 22 is fitted and held in a fitting hole 5 a formed in the second contact body 5. ing. On the back surface of the second contact body 5, a cushion sheet 23 made of a rubber-like elastic material is attached on almost the entire surface. Since the cushion cap 22 has the same structure as the cushion cap 14, the second contact body 5 has the same structure as the first contact body 4, and the cushion sheet 23 has the same structure as the cushion sheet 14, detailed description thereof will be omitted.

Next, a method of using the telescopic pole A will be described. First, the fixing screw 3 is loosened, the outer cylinder 1 and the inner cylinder 2 are inserted and removed, and the entire length is adjusted to approximately the distance between the opposing wall surfaces W to be installed. Then, the fixing screw 3 is tightened, and the outer cylinder 1 and the inner cylinder 2 are Fix and to each other. Next, the operating body 12 of the screw mechanism 6 is rotated to adjust the axial distance between the first contact body 4 and the outer end portion of the inner cylinder 2, and the wall surface W is stretched. At this time, the compression coil spring 19 arranged between the spring piece 17 and the second guide cap 18 is compressed, and the repulsive force of the compression coil spring 19 presses the left and right contact bodies 4, 5 against the wall surface W. This crimping force is increased / decreased by turning the operating body 12. In particular, since the compression coil spring 19 is arranged between the spring piece 17 and the second guide cap 18 in the state where an initial compression load is applied, it is possible to obtain a predetermined tension force by simply rotating the operating body 12 a little. You can

When the telescopic pole A is installed on the opposing wall surface W, when a heavy object is hung on the pole A or the wall surface W is deformed by the tension force of the pole A, the left and right contact bodies 4, 5 may be inclined with respect to the wall surface W, and the cushion sheets 14 and 23 of the contact bodies 4 and 5 may be in point contact with the wall surface W. However, the cushion cap 14 arranged between the first contact body 4 and the first guide cap 13 allows the inclination of the first contact body 4, and the second contact body 5 and the second guide cap 18 The cushion cap 22 arranged between the two allows the second contact body 5 to tilt. Therefore, the cushion sheets 14 and 23 are always in surface contact with the wall surface W, and stability is not lost.

The cushion caps 14 and 22 prevent backlash between the pole A and the contact bodies 4 and 5 while allowing the first and second contact bodies 4 and 5 to be tilted. Paul A never wobbles. Therefore, even if a heavy object is hung on the pole A, the stability is not impaired and the withstand load that can be suspended does not decrease. Further, since the cushion caps 14 and 22 function as cushioning materials, damage to parts such as the contact bodies 4 and 5 and the guide caps 13 and 17 can be prevented even when the pole A is strongly stretched.

Further, since the spring force of the compression coil spring 19 can always maintain a constant tension force, even if the operation body 12 is loosened or the wall surface W is deformed, the pressure force is hardly reduced, and the pole force is reduced. It is difficult for A to drop. Therefore, the wall surface W can be stably attached for a long period of time.

The present invention is not limited to the above-described embodiments, but various modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the screw mechanism 6 is provided at the outer end of the inner cylinder 2 and the spring mechanism 16 is provided at the outer end of the outer cylinder 1. Conversely, the screw mechanism 6 is provided at the outer end of the outer cylinder 1. The mechanism 6 may be provided, and the spring mechanism 16 may be provided at the outer end of the inner cylinder 2. Further, the screw mechanism 6 is not limited to a combination of a screw piece having a male screw fitted to the outer cylinder or the inner cylinder and an operating body having a female screw screwed to the screw piece. For example, as in Japanese Utility Model Laid-Open No. 59-184582, the nut may be fixed to the outer cylinder or the inner cylinder, and a bolt for screwing with a nut may be fixed or integrally formed on the operating body. In any case, it is desirable to provide the operating body with a cover so that the screw portion is not exposed to the outside. Further, it is desirable that the operating body has a structure in which play or inclination is restricted with respect to one outer end of the outer cylinder or the inner cylinder. Further, the spring mechanism 16 is not limited to the spring piece, the guide cap, and the compression spring, and the guide cap fitted and held in the fitting hole of the second contact body. For example, the second cap may also serve as the guide cap, and the compression spring may be arranged between the second contact body and the spring piece. In any case, it is desirable to have a structure in which the compression spring is not exposed to the outside. The fixing tool is not limited to the fixing screw 3 and may be a cam mechanism or a pin. However, the fixing screw 3 has an advantage that the inner and outer cylinders can be firmly fixed at any position. In the above embodiment, the contact bodies 4 and 5 are made of hard resin, but the cushion caps 14 and 22 may be used as the contact bodies. In this case, the cushion cap itself will be pressed against the wall surface.

[0022]

[Effect of device]

 As is clear from the above description, according to the present invention, since the screw mechanism is provided at one end side of the pole and the spring mechanism is provided at the other end side, the screw mechanism and the spring mechanism can be arranged with a margin, and the structure is It is simple and inexpensive to construct. In addition, since the space for arranging the screw mechanism is not restricted, it is easy to obtain the desired screw strength, and the space for arranging the compression spring is not restricted, so that the repulsive force can be arbitrarily increased and a strong bracing force can be obtained. Can be demonstrated.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an example of a telescopic pole according to the present invention.

2 is an overall sectional view of the telescopic pole of FIG.

FIG. 3 is an enlarged cross-sectional view of one end of the telescopic pole shown in FIG.

FIG. 4 is an enlarged cross-sectional view of the other end of the telescopic pole shown in FIG.

[Explanation of symbols]

 1 Outer cylinder 2 Inner cylinder 3 Fixing screw 4 First contact body 5 Second contact body 6 Screw mechanism 11 Screw piece 12 Operating body 16 Spring mechanism 17 Spring piece 18 Guide cap 19 Compression coil spring

Claims (3)

[Scope of utility model registration request] 1. An outer cylinder and an inner cylinder which are inserted and removed freely, a fixture for fixing the outer cylinder and the inner cylinder to each other at arbitrary positions, and an outer end portion of the outer cylinder and the inner cylinder which are separated from each other. In the telescopic pole provided with the first and second abutment bodies, the first abutment body is provided between the first abutment body and one outer end of one of the outer cylinder and the inner cylinder, and the first abutment is provided as the operating body rotates. A screw mechanism capable of adjusting an axial distance between the body and one outer end of the outer cylinder and the inner cylinder; and a screw mechanism provided between the other outer end of the outer cylinder and the inner cylinder and the second contact body, A telescopic pole characterized by having a spring mechanism having a compression spring inside. 2. The telescopic pole according to claim 1, wherein the spring mechanism is a spring piece fitted and fixed to the other outer end of the outer cylinder and the inner cylinder, and slides axially with respect to the spring piece. A guide cap that is freely fitted and prevented from coming off in the separating direction, and is fitted and held in the fitting hole of the second contact body, and a compression spring interposed between the spring piece and the guide cap. Telescopic pole characterized by having. 3. The telescopic pole according to claim 1, wherein the screw mechanism includes a screw piece having a male screw fitted and fixed to one outer end of one of an outer cylinder and an inner cylinder, and a male screw of the screw piece. A telescopic pole, comprising: an operating body having a female screw that is screwed into the.