Contact member of crimp rod

Abstract

To provide a crimp rod in which protrusion force is not deteriorated even being bent due to a load.SOLUTION: A crimp rod is fixed between wall surfaces by a rod body 1 and contact members for a wall surface which are arranged on both ends of the rod body with energization force in an extension direction, and is fixed by protrusion force. An end member 10 on which a rod body holding part 13 capable of vertically traveling in a travel path 2 of the contact member body having a tapered surface separated from the wall surface as coming close to a lower side is provided, is interposed between the contact member and the rod body end. On both ends in a width direction of the contact member body, channel-shaped slide rails 3 into which a slider 11 part of the end member is inserted, are provided for using the slide rails as travel guides. For an interval between ceiling surfaces of the slide rails and the travel path, a thickness of the slider part of the end member is reduced so as to move vertically, and an upper surface of the slider is pressed with energization force so as to contact the ceiling surfaces of the slide rails, by providing a spring 4 on the lower side of the slider.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a crimping rod that is held between wall surfaces with tension, and more particularly to an improved abutment member of the crimping rod. [Background technology]

[0002] For example, crimped rods, which are fixed to a wall surface by a tension force applied by a rod body and wall abutment members arranged at both ends of the rod with a biasing force in the extension direction, and crimped shelves equipped with multiple such rods are widely known for hanging objects in places such as closets and hallways where nails or wood screws cannot be used.

[0003] However, the above-mentioned crimping rod has the following problems: First, a problem with all crimping rods is that because they are held between the wall surfaces solely by frictional resistance caused by tension, if an excessive load is applied, for example, when a heavy object is hung from the crimping rod, the load overcomes the frictional resistance and the crimping rod slides down from the wall surface.

[0004] There is also a type of crimping rod in which the rod body is inserted into the outer tube by a screw means with a force in the extension direction so that it can be freely advanced and retreated, thereby adjusting the tension force (a typical known example is Patent Document 1). However, in this case, there is a problem that the screw thread of the rod body can loosen in the contraction direction due to vibration, etc., and eventually slide off the wall surface.

[0005] A known invention that solves the above problems is a crimping rod described in Patent Document 2. Figures 11 to 15 are diagrams showing the details of this crimping rod. A rod body P of this crimping rod is composed of an outer cylinder 40 and an inner cylinder 41 inserted into the outer cylinder so as to be freely movable forward and backward. A coil spring S is inserted into the inner cylinder and the outer cylinder, one end of the coil spring is fixed to a pin 43 of the outer cylinder 40, and a pin-shaped guide member 42 that is screwably engaged with the coil spring is provided inside the rod body 41, so that the rod body can be freely moved forward and backward by a screwing means with a biasing force in the extension direction relative to the outer cylinder. That is, in this mechanism, by rotating the rod body P, the guide member 42 screws into the coil spring S fixed to the outer cylinder 40, and the inner cylinder 41 moves forward and backward. In this case, the guide member 42 is supported by the coil spring S, so that it is supported by elastic force.

[0006] In the drawing, reference numeral 60 denotes an abutment member, which is connected to the rod body 30 via the end member 50. One side of this abutment member 60 serves as an abutment surface for contacting the wall surface W, and the other side has a tapered surface that moves away from the wall surface as it extends downward, and the end member 50 is provided so as to be able to slide freely against the tapered surface by fitting a slider 51 provided at one end of the end member 50 into a sliding groove 61 provided on the tapered surface side with a retaining means (not shown).

[0007] This crimping bar is held with tension between the wall surfaces W, W. Since the end members 50 are slidably mounted on the contact members 60, if an excessive load is applied to the crimping bar and it attempts to slide downward, the end portion will slide on the tapered surface of the contact member which moves away from the wall surface as it moves downward, and as a result, it will move in the contracting direction, and the biasing force that pushes it back in the expanding direction will generate stronger frictional resistance and prevent it from sliding down (see Figs. 14 and 15). [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Jpn. Jpn. Published No. 56-878 [Patent Document 2] Patent No. 2838487 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0009] The crimping rod described in the above-mentioned Patent Document 2 has a remarkable effect of preventing the crimping rod from slipping down due to the wedge effect of the tapered surface of the abutting member, as long as it is used within the design range. However, if an excessive load exceeding the design range is applied to the center part of the crimping rod and the rigidity of the crimping rod cannot withstand it, the crimping rod may bend in the load direction as shown in Figure 16, and its overall length may become shorter. In this case, since the slider 51 provided at one end of the end member 50 is slidably fitted into the abutting member 60 with a retaining means, a problem occurs in that the abutting member is pulled in a direction away from the wall surface as the crimping rod bends. [Means for solving the problem]

[0010] The abutment member of the crimping rod of the present invention was created in consideration of the problems of the prior art described above, and aims to provide a contact member of the crimping rod that does not lose its tension force even when it is bent under load. That is, the abutment member of the crimping rod of the present invention is a contact member of the crimping rod that is fixed between the wall surfaces with tension force by the abutment member between the rod body and the wall surfaces against which both ends of the rod body abut with a biasing force in the extension direction, An end member capable of moving up and down within a running path of the abutment member body having a tapered surface that moves away from the wall surface as it extends downward is interposed between the rod end and the abutment member, and the end member is configured such that a rod holding portion is protrudingly provided on a slider capable of moving up and down within the running path, A channel-shaped slide rail into which the slider portion of the end member is inserted is provided at both widthwise ends of the contact member body to act as a running guide, the thickness of the slider portion of the end member is made thin relative to the distance between the ceiling surface of the slide rail and the running path to allow it to move up and down, and a spring is provided below the slider so that its upper surface is pressed with an urging force so as to come into contact with the ceiling surface of the slide rail.

[0011] The invention described in claim 2 is characterized in that, in the abutment member of the crimping bar, the springs provided below the slider are a pair fixed to both ends of the slider in the width direction, and have a shape in which two inclined sides are joined to form a L-shape, with the apex of the joined L-shape being fixed to the slider, and the lower ends of both sides being in contact with the running path of the slide rail.

[0012] The invention described in claim 3 is characterized in that, in the abutment member of the crimping rod, a hole is provided in the running path of the abutment member body into which an end of one side of the spring of the slider of the end member falls, and the position of the hole is set so that the end of one side of the spring falls into it when the end member reaches the top of the abutment member body.

[0013] In this application, "above" refers to the state in which the abutment member is installed on the wall surface against which both ends of the rod body arranged between the wall surfaces with a biasing force in the extension direction are abutted, i.e., the ceiling direction when the rod body is arranged on a vertical wall surface. Effect of the Invention

[0014] According to the crimping rod of the present invention, an end member capable of moving up and down within the running path of the abutment member main body, which has a tapered surface that moves away from the wall surface as it goes downward, is interposed between the end of the rod and the abutment member, and the end member has a rod holding portion protruding from a slider that can move up and down within the running path, so that the rod is braced and held between the rod abutment members via the end member.If an excessive load is applied to the rod and it tries to slide downward, the end member will slide on the tapered surface of the abutment member, causing it to move in the contracting direction, and a spring force will act to push it back in the expanding direction, generating stronger frictional resistance and preventing it from sliding down.

[0015] In addition, a channel-shaped slide rail into which the slider of the end member is inserted is provided at both widthwise ends of the contact member body to serve as a travel guide, and the thickness of the slider of the end member is made thin relative to the gap between the ceiling surface of the slide rail and the travel path to allow it to move up and down freely, and a spring is provided below the slider so that its upper surface is pressed with an urging force so that it abuts against the ceiling surface of the slide rail, so that when the rod body is braced and held, the spring is compressed and a gap is created between the upper surface of the slider and the ceiling surface of the slide rail. Therefore, even if the crimp rod is bent in the load direction and its overall length is shortened, the shortened amount is absorbed by the return of the spring due to the gap, and the contact member is prevented from being pulled in a direction away from the wall surface.

[0016] Furthermore, according to the invention of claim 3, a hole is provided in the running path of the contact member body, into which the end of one side of the spring of the slider of the end member falls, and the position of the hole is set so that the end of one side of the spring falls into it when the end member reaches the top of the contact member body. Therefore, in the initial state, the end member is fixed at the top of the contact member body and will not slide down. [Brief description of the drawings]

[0017] [Figure 1] FIG. 4 is a perspective view of a contact member of the crimping bar of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 4 is a cross-sectional view of a contact member of the crimping bar of the present invention. [Figure 7] FIG. 4 is a partially cutaway side view of the contact member of the crimping bar of the present invention in use; [Figure 8] FIG. 4 is a partially cutaway side view of the contact member of the crimping bar of the present invention in use; [Figure 9]FIG. 4 is a partially cutaway side view of the contact member of the crimping bar of the present invention in use; [Figure 10] FIG. 4 is a partially cutaway side view of the contact member of the crimping bar of the present invention in use; [Figure 11] FIG. 2 is a partially cutaway side view of a conventional crimping bar; [Figure 12] Same as above, side view in use [Figure 13] Same as above, side view in use [Figure 14] Same as above, side view in use BEST MODE FOR CARRYING OUT THEINVENTION

[0018] The abutment member of the present invention is used for a rod body of a known crimping rod. Fig. 11 is a diagram showing an example of a rod body of a known crimping rod. The rod body P is composed of an outer cylinder 40 and an inner cylinder 41 inserted into the outer cylinder so as to be freely movable forward and backward. A coil spring S is inserted into the inner cylinder and the outer cylinder, one end of the coil spring is fixed to a pin 43 of the outer cylinder 40, and a pin-shaped guide member 42 is provided inside the rod body 41 to be freely engaged with the coil spring so as to be freely screwed, so that the rod body can be freely moved forward and backward by a screwing means with a biasing force in the extension direction relative to the outer cylinder. That is, in this mechanism, by rotating the rod body P, the guide member 42 screws into the coil spring S fixed to the outer cylinder 40, and the inner cylinder 41 moves forward and backward. In this case, the guide member 42 is supported by the coil spring S, so that it is supported by elastic force.

[0019] 1 to 6 are views showing a contact member of the present invention. This contact member is composed of a contact member main body 1 and an end member 10 capable of moving up and down inside a running path 2.

[0020] The end member 10 is configured with a rod body holding part 12 protruding from a slider 11 that can move up and down within the running path 3 of the abutting member main body 1, and the rod body holding part is configured in a bottomed cylindrical shape that receives the end of the rod body P of the crimping rod. Also, the running path 2 of the abutting member main body 1 is configured to have a tapered surface that moves away from the wall surface as it goes downward.

[0021] In the present invention, channel-shaped slide rails 3, 3 into which the sliders 11 of the end members 10 are inserted are provided at both widthwise ends of the abutment member body 1 to serve as running guides, the thickness of the slider portions of the end members is made thin relative to the distance between the ceiling surface 3A of the slide rail and the running path 2 to allow the sliders to move up and down, and springs 13, 13 are provided below the sliders so that their upper surfaces are pressed with an urging force so as to abut against the ceiling surface of the slide rail.

[0022] The springs 13, 13 provided below the slider 11 are a pair fixed to both ends of the slider in the width direction, and consist of two inclined sides 13B, 13C joined together in a L-shape, with the apex 13A of the joined L-shape being fixed to the slider, and the lower ends of both sides being in contact with the running path 2 of the slide rails 3, 3. The rod body holding portion 12, the slider 11 and the springs 13, 13 are integrally molded from plastic.

[0023] On the other hand, holes 4, 4 are provided in the running path of the abutment member body 1, into which the ends of one sides 13C, 13C of the springs 13, 13 of the slider 11 of the end member 10 fall, and the position of the holes is set so that the end of one side of the spring falls into place when the end member reaches the top of the abutment member body (see Figure 6).

[0024] The pillar protruding from the lower front surface of the contact member main body 1 is a hook for hanging a hanger or the like.

[0025] 7 to 10 are diagrams showing the effects of the present invention. The abutment member of the crimping bar of the present invention is interposed between a bar body P having a biasing force in the extension direction and a wall surface W. In the abutment member of the present invention, in the initial state, the end member 10 is fixed at a position where the end of one side 13B of the spring 13 of the slider 11 falls into the hole 4 of the running path 2 of the abutment member main body 1 and reaches the top of the abutment member main body, and does not slide down.

[0026] The rod P is held between the abutting members via the end member 10 with a biasing force (see Fig. 8), but if an excessive load is applied to the rod and it tries to slide down, the end member slides on the tapered surface of the abutting member and moves in the contracting direction, so that a biasing force acts to push it back in the expanding direction, generating stronger frictional resistance and preventing it from sliding down (see Fig. 9). In this case, the spring 13 of the slider 11 of the end member 10 is pressed and contracts, and the end of one side 13B that had fallen into the hole 4 of the running path 2 comes out of the hole, allowing the slider to run.

[0027] In addition, channel-shaped slide rails 3, 3 into which the sliders 11 of the end members 10 are inserted are provided at both widthwise ends of the abutment member body 1 to serve as travel guides, and the thickness of the sliders of the end members is made thin relative to the gap between the ceiling surface 3A of the slide rail and the travel path 2 to allow them to move up and down freely, and springs 13, 13 are provided below the sliders so that their upper surfaces are pressed with an urging force so that they come into contact with the ceiling surface of the slide rail, so that when the rod body P is braced and held, the above-mentioned springs are compressed and a gap is generated between the upper surface of the slider and the ceiling surface of the slide rail. Therefore, even if the crimping rod P is bent in the load direction and its overall length is shortened, the shortened amount is absorbed by the return of the springs 13, 13 due to the presence of the gap, and the abutment member is prevented from being pulled in a direction away from the wall surface W (see FIG. 13). [Explanation of symbols]

[0028] P rod W wall 1. Contact member body 2. Road 3 Slide rail 4 holes 5. Hook 10 End member 11 Slider 12 Rod holding part 13. Spring

Claims

1. The abutment member of the crimping rod is fixed between the wall surfaces by tension force by the abutment member between the rod body and the wall surfaces against which both ends of the rod body abut with a biasing force in the extension direction, An end member capable of moving up and down within a running path of the abutment member body having a tapered surface which moves away from the wall surface as it extends downward is interposed between the rod end and the abutment member, and the end member is configured such that a rod holding portion is protrudingly provided on a slider capable of moving up and down within the running path, A contact member for a crimping rod, characterized in that a channel-shaped slide rail into which the slider portion of the end member is inserted is provided at both widthwise ends of the contact member body to serve as a running guide, the thickness of the slider portion of the end member is made thin relative to the distance between the ceiling surface of the slide rail and the running path so that it can move up and down, and a spring is provided below the slider so that its upper surface is pressed with an urging force so as to contact the ceiling surface of the slide rail.

2. 2. The contact member of the crimping bar according to claim 1, wherein the springs provided below the slider are a pair fixed to both ends of the slider in the width direction, and have a shape in which two inclined sides are joined together in an L-shape, the apex of the joined L-shape being fixed to the slider, and the lower ends of both sides being in contact with the running path of the slide rail.

3. 3. The contact member for a crimping rod as claimed in claim 2, wherein a hole is provided in the running path of the contact member body into which an end of one side of the spring of the slider of the end member falls, and the position of the hole is set so that the end of one side of the spring falls into it when the end member reaches the top of the contact member body.

4. 4. The contact member for a crimping rod according to claim 3, wherein the end member is formed by integrally molding the rod body holding portion, the slider and the spring from plastic.

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