JP3032799U - Crimping tool end structure - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide an end structure of a crimping tool capable of preventing the crimping tool from sliding down by absorbing the flexure when a load is applied and the flexure occurs. SOLUTION: Caps 14 and 22 made of hard resin are fitted to the ends of the main body of the crimping tool,
Is loosely fitted in the end members 4, 5 having the recesses 4a, 5a with a radial clearance δ. A flange portion 4d is integrally formed on the outer peripheral portion of the end members 4 and 5, and the flange portion 4d is formed.
Cushion sheet 1 made of rubber-like elastic material on the back side of
5 and 23 are attached. End members 4, 5 and cap 1
The fitting claws 1 formed on the end surfaces of the caps 14 and 22 are in swingable contact with the spherical surfaces 14a and 4b.
4b and the fitting holes 4c formed in the bottom surfaces of the recesses of the end members 4 and 5 are fitted to each other to be connected.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an end structure of a crimping tool such as a pole or a shelf which is attached in a stretched state between opposed wall surfaces.

[0002]

[Prior art]

 Conventionally, as a crimping tool of this kind, as in Japanese Utility Model Publication No. 7-37545, elastic caps are put on both ends of a projecting bar forming a pole body or a projecting bar projecting on both sides of a shelf body. It has been proposed that a cap-shaped end member having a seat portion to which an elastic sheet that abuts a wall surface is attached is detachably fitted to the outside of the.

In this structure, when a load is applied to the crimping tool from above, the load due to bending is reduced between the elastic cap and the end member to prevent the end member from being directly loaded. Therefore, even if a load is applied, the wall-contacting end portion is unlikely to slip off, and the load resistance can be improved.

[0004]

[Problems to be solved by the invention]

 In the case of the above structure, when a load is applied to cause the bending, the bending is absorbed only by the elastic deformation of the elastic cap. However, there is a limit to the elastic deformation of the elastic cap, and when the amount of bending increases, the bending cannot be absorbed by the elastic cap alone, and it also affects the end members. As a result, the end member could not be brought into close contact with the wall surface, and the crimping tool might slip off, or the end member might crack due to bending stress.

Therefore, an object of the present invention is to provide an end structure of a crimping tool capable of solving the above-mentioned problems.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a crimping tool that is mounted in a state in which it is stretched between opposing wall surfaces, in which the end of the body of the crimping tool is made of a hard resin. The cap is loosely fitted in the end member having a recess with a radial gap, and the flange is integrally formed on the outer periphery of the end member. A cushion sheet made of elastic material is attached, and the end member and the cap are swingably connected to each other.

When a load is applied to the crimping tool from above to cause bending, the crimping tool main body tilts with respect to the end member that is in close contact with the wall surface. This inclination is absorbed by the swing of the cap and the end member, so that the end member is hardly loaded and the bending can be easily absorbed. Further, although the cap and the end member are loosely fitted, the cap and the end member are swingably connected to each other, so that the end member can be prevented from falling off the crimping tool body during transportation. , Easy to handle.

When the crimping tool body tilts with respect to the end member as described above, this tilt is absorbed by the radial gap between the cap and the end member, and at that time, the end face of the cap and the concave portion of the end member are depressed. There is a possibility that a large load is locally applied to the cap or the end member due to the one-sided contact with the bottom surface. Therefore, it is desirable to form spherical surfaces on the end surface of the cap and the bottom surface of the recess of the end member so as to slidably contact each other. In this case, even if the angle changes between the two, the spherical surfaces are in stable contact with each other, so that it is possible to eliminate the concentration of a large load locally. The spherical surface does not have to be formed on both the end surface of the cap and the bottom surface of the recess of the end member, and one may be a projection.

As a method of connecting the cap and the end member, a fitting claw is integrally projected on the end surface of the cap, and a fitting hole into which the fitting claw is fitted is formed in the bottom surface of the recess of the end member. The structure is very simple in the case of the method in which the cap is swingably connected to the end member by locking the fitting claw on the back side of the fitting hole. The crimping method of the crimping tool of the present invention may be any method such as crimping by a screw mechanism, crimping by a spring, or crimping using both.

[0010]

[Embodiment of the invention]

 1 and 2 show a crimp pole A which is an example of a crimping tool according to the present invention. The 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. The screw mechanism 6 provided between the first and second end members 4 and 5, the first end member 4 and the outer end of the inner cylinder 2, and the outer end of the outer cylinder 1 and the second end. A spring mechanism 16 provided between the end member 5 and the end member 5 is provided.

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. The fixing tool is not limited to the fixing screw 3, but a cam mechanism, a pin, or the like may be used. However, in the case of the fixing screw 3, there is an advantage that the inner and outer cylinders can be strongly fixed at any position.

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. By rotating the operating body 12, the axial distance between the first end member 4 and the outer end of the inner cylinder 2 can be adjusted.

The screw mechanism 6 is limited to a combination of a screw piece 11 having a male screw fitted in an outer cylinder or an inner cylinder and an operating body 12 having a female screw 12 b screwed to the screw piece 11. is not. For example, as in Japanese Utility Model Laid-Open No. 59-184582, a nut may be fixed to the outer cylinder or the inner cylinder, and a bolt that is screwed with the 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.

A collar 13 made of hard resin is rotatably fitted to the outer periphery 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 collar 13, and when the collar 13 is fitted to the outer periphery of one end of the operating body 12, the claws 13a engage with the annular protrusion 12c. However, the collar 13 is prevented from coming off from the operating body 12.

A cap 14 made of hard resin is removably fitted on the outside of the collar 13, and the cap 14 is fitted in a recess 4 a of the first end member 4 made of hard resin with a predetermined radial gap δ. It is fitted. A convex spherical surface 14a is formed on the end surface of the cap 14, and a concave spherical surface 4b is formed on the bottom surface of the recess 4a of the first end member 4 facing the cap 14. Therefore, when the cap 14 swings with respect to the first end member 4, the convex spherical surface 14a and the concave spherical surface 4b slide while making surface contact with each other, and the cap 14 is stably held with respect to the first end member 4. it can. A fitting claw 14b is formed at the center of the end surface of the cap 14, and a fitting hole 4c is formed at the center of the bottom surface of the recess of the first end member 4. The fitting claw 14b is fitted in the fitting hole 4c, the fitting claw 14b is locked to the back surface side of the fitting hole 4c, and the cap 14 and the first end member 4 are connected. Since there is a slight margin between the fitting claw 14b and the fitting hole 4c, the cap 14 can swing with respect to the first end member 4. The swing angle is defined by the gap δ between the cap 14 and the first end member 4.

On the outer peripheral portion of the first end member 4, a flange portion 4d protruding in the outer peripheral direction is integrally formed. 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. The shape of the flange portion 4d is not limited to the rectangular shape as in the embodiment, and may be a disk shape, for example. Further, the cushion sheet 15 does not have to be attached to the entire surface of the flange portion 4c, and may be attached to the back surface of the flange portion 4c in a ring shape.

In the embodiment, as a structure for swingably connecting the cap 14 and the first end member 4, the fitting claw 14b provided on the cap 14 is fitted into the fitting hole 4c of the first end member 4. However, conversely, a fitting claw may be formed on the first end 4 side and a fitting hole may be provided on the cap 14 side. Further, as shown in FIG. 4, the cap 14 and the first end member 4 may be swingably connected using a screw 24 or a rivet. Although the convex spherical surface 14a is formed on the cap 14 and the concave spherical surface 4b is formed on the first end member 4, the concave spherical surface is formed on the cap 14 and the convex spherical surface is formed on the first end member 4 on the contrary. Good. Further, although the cap 14 is fitted to the outside of the collar 13 in this embodiment, the collar 13 and the cap 14 may be integrated and configured as one part.

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. 5, 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 collar 18 which is freely fitted and a compression coil spring 19 which is arranged between the spring piece 17 and the collar 18 in a slightly compressed state. A shaft portion 18a is integrally provided at the center of the collar 18 toward the spring piece 17, and the shaft portion 18a is slidably inserted into a central hole 17a of the spring piece 17. Then, by screwing the screw 21 from the spring piece 17 side to the shaft portion 18a via the washer 20, the spring piece 17 and the collar 18 are separated from each other with the initial compression load being applied to the compression coil spring 19. It is locked in.

A cap 22 made of hard resin is removably fitted on the outside of the collar 18, and the cap 22 has a clearance 5 in a recess 5 a formed in the second end member 5 made of hard resin. It is fitted. A cushion sheet 23 is attached to the back surface of the second end member 5. Since the cap 22 has the same structure as the cap 14, the second end member 5 has the same structure as the first end member 4, and the cushion sheet 23 has the same structure as the cushion sheet 15, detailed description thereof will be omitted. In this case as well, the collar 18 and the cap 22 can be integrated.

Next, a method of using the 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 end member 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 collar 18 is compressed, and the repulsive force presses the left and right end members 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 collar 18 in a state in which the initial compression load is applied, a predetermined tension force can be obtained by simply rotating the operating body 12 a little. Further, since the cushion sheets 15 and 23 adhered to the back surfaces of the end members 4 and 5 are closely adhered to the wall surface W in a wide area, they can be stably attached.

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

When a heavy object is hung on the pole A while the pole A is installed on the facing wall surface W, the central portion of the pole A bends downward as shown by the broken line in FIG. It will be inclined with respect to the wall surface W. In particular, when the amount of bending increases, the cushion sheets 15 and 23 of the end members 4 and 5 come into partial contact with the wall surface W, and the end members 4 and 5 may slide off the wall surface. However, since the swingable gap δ is provided between the end members 4 and 5 and the caps 14 and 22, the inclination of the pole A can be allowed by this gap δ, and the cushion sheets 15 and 23 can be attached to the wall surface W. Can always be interviewed. Therefore, the end members 4 and 5 do not slide down from the wall surface W, and stability is not lost.

The present invention is not limited to the above-mentioned embodiment, and 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 and the panel mechanism 16 may be integrally configured without separately arranged. In the above embodiment, the case where the crimping tool main body into which the caps 14 and 22 are fitted is the collars 13 and 18, but the invention is not limited to this, and the outer cylinder 1 or the inner cylinder 2 itself may be used. Other members may be used. When the crimping tool is a crimp type shelf, the main body is not limited to the pole-shaped member, but may be a connecting frame or another member. In short, the crimping tool body may be any member as long as it is a member to which a force in the axial direction acts when the crimping tool body is attached in a state of being stretched between the opposing wall surfaces.

[0024]

[Effect of the invention]

 As is clear from the above description, according to the present invention, when the crimping tool bends, a relative angle change also occurs between the end member that is in close contact with the wall surface and the crimping tool body. Since this change in angle is absorbed by the gap between the cap and the end member, the cushion sheet on the back surface of the end member can be kept in close contact with the wall surface and can be prevented from falling off. Further, since the end member and the cap are swingably connected, it is possible to prevent the end member from falling off with respect to the crimping tool body, which facilitates handling.

[Brief description of the drawings]

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

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

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

FIG. 4 is a cross-sectional view of another example of the connecting structure between the first end member and the cap.

5 is an enlarged cross-sectional view of the crimp pole of FIG. 1 on the other end side.

FIG. 6 is a side view of the crimp pole of FIG. 1 in an installed state.

[Explanation of symbols]

 A Crimping pole 1 Outer cylinder 2 Inner cylinder 4 First end member 5 Second end member 14,22 Cap 15,23 Cushion seat

Claims (3)

[Utility model registration claims] 1. A crimping tool mounted in a stretched state between opposed wall surfaces, wherein a cap made of hard resin is fitted to an end portion of a main body of the crimping tool, and the cap is radially arranged on an end member having a recess. A flange portion is integrally formed on the outer peripheral portion of the end member, and a cushion sheet made of a rubber-like elastic body is attached to the back surface of the flange portion. Is an end structure of a crimping tool, which is swingably connected. 2. The end structure of a crimping tool according to claim 1, wherein the end surface of the cap and the bottom surface of the recess of the end member are formed with spherical surfaces that slidably contact each other. Crimping tool end structure. 3. The end structure of the crimping tool according to claim 1 or 2, wherein a fitting claw is integrally provided on an end surface of the cap, and the fitting claw is provided on a bottom surface of the recess of the end member. A crimp characterized in that a fitting hole for fitting is formed, and the cap is swingably connected to the end member by locking the fitting claw on the back side of the fitting hole. Tool end structure.