JP2006136670A - Mount, and press-contacting bar and press-contacting rack using the mount - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mount, and a press-contacting bar and a press-contacting rack using the mount where a supporting function can be continued reliably and suitably for a long period. <P>SOLUTION: The press-contacting bar 10 constructed by allowing the supporting force to be acted on wall faces W opposing to each other comprises: an expansion bar member 11 extensible in an axial direction; and the mounts 12 holding the expansion bar member 11 and abutting on the wall faces W. Each mount 12 is provided with: a main body 21 holding the expansion bar 11 between itself and the end 14 of the expansion bar member 11 through a first spring 27; and a receiving part 22 which can be abutted on the wall face W and has a second spring interposed between itself and the main body 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pedestal that holds and stretches a telescopic rod member that exerts a tensile force between opposing installation surfaces (for example, wall surfaces), and a crimping bar and a crimping shelf using the pedestal.

  For example, in an intrusion or in a hallway, it is used to hang or place an article in a place where nails, wood screws, etc. cannot be used. There is known a bar and a crimp shelf provided with the crimp bar. As an example, there is one described in Patent Document 1.

Japanese Patent No. 2838487

  However, in the case of the crimping rod described in Patent Document 1, when an article is suspended from the outer cylinder in a state of being installed on the installation surface, a load orthogonal to the axial direction of the outer cylinder acts and the outer cylinder is The contact members that are bent downward and are provided at both ends of the crimping rod are such that, of the contact area with the installation surface, the upper part floats from the installation surface, and only the lower part comes into contact with the installation surface. As a result, the contact area between the contact member and the installation surface is reduced, and the frictional force between the contact member and the installation surface is reduced accordingly. There is a risk of falling.

  In addition, in the case of the crimping rod described in Patent Document 1, as it is used for a long period of time, the tension force of the crimping rod causes the installation surface (for example, the wall surface) to be depressed, and acts from the crimping rod to the installation surface. Therefore, there is a risk that the crimping rod will drop when the article is suspended from the crimping rod.

  An object of the present invention is to provide a pedestal that can reliably maintain a tensioning function for a long period of time, and a crimping bar and a crimping shelf using the pedestal.

  The pedestal according to the invention of claim 1 is a pedestal for holding and extending the telescopic bar member that exerts a tensile force on the opposing installation surfaces, and the pedestal includes a main body for holding the telescopic bar member; It has a receiving part which can contact the installation surface, and the body and the receiving part are combined. Moreover, the base which concerns on invention of Claim 2 is a base of Claim 1, Comprising: The said main body has a holding part holding the said expansion-contraction rod member, and the said base hold | maintains an expansion-contraction rod member The main body and the receiving part are coupled to each other below the holding part in a state of being installed on the installation surface. Moreover, the pedestal according to the invention described in claim 3 is the pedestal according to claim 1 or 2, wherein the main body and the receiving portion are coupled by a hinge, and the pedestal is a telescopic rod member. The main body is configured to be rotatable with respect to the receiving portion by the hinge in a state where the main body is held on the installation surface. The pedestal according to the invention described in claim 4 is the pedestal according to any one of claims 1 to 3, wherein an elastic member is provided between the main body and the receiving portion. It is characterized by being interposed. The pedestal according to the invention described in claim 5 is the pedestal according to any one of claims 1 to 5, wherein the elastic member is a spring. According to a sixth aspect of the present invention, there is provided a crimping rod according to the present invention, wherein the crimping rod is constructed by applying a tensile force to the opposing installation surfaces, and an expansion / contraction bar member capable of expanding and contracting in the axial direction. It has the base of any one of claim | item 5. It is characterized by the above-mentioned. The crimping bar according to the invention described in claim 7 is the crimping bar according to claim 6, wherein an elastic member is interposed between the main body of the base and the telescopic bar member. It is characterized by. A crimping bar according to an eighth aspect of the present invention is the crimping bar according to the seventh aspect, wherein the elastic force of the elastic member interposed between the main body of the base and the telescopic bar member is provided. The elastic member is set to be larger than the elastic force of the elastic member interposed between the main body of the base and the receiving portion. A crimping bar according to a ninth aspect of the present invention is the crimping bar according to the seventh or eighth aspect, wherein the elastic member is interposed between the main body of the base and the telescopic bar member. And the elastic member interposed between the main body of the base and the receiving portion is a spring, and the shaft center of the spring is the axis of the telescopic rod member in a state where the crimping rod is installed on the installation surface. It is characterized by being set substantially parallel to the heart. The crimping shelf according to the invention of claim 10 is a crimping shelf provided with a crimping bar that is installed by acting a tension force on the opposite installation surfaces, and an expansion / contraction bar member that is extendable in the axial direction; A crimping shelf comprising the pedestal according to any one of claims 1 to 5. The crimping shelf according to the invention described in claim 11 is the crimping shelf according to claim 10, wherein an elastic member is interposed between the main body of the base and the telescopic rod member. It is characterized by. The crimping shelf according to the invention of claim 12 is the crimping shelf according to claim 11, wherein the elastic force of the elastic member interposed between the base body and the telescopic bar member is provided. The elastic member is set to be larger than the elastic force of the elastic member interposed between the main body of the base and the receiving portion. The crimp shelf according to claim 13 is the crimp shelf according to claim 11 or 12, wherein the elastic member and the pedestal interposed between a main body of the pedestal and the telescopic rod member. The elastic member interposed between the main body and the receiving portion is a spring, and the shaft center of the spring is substantially the same as the shaft center of the telescopic rod member in the state of being installed on the installation surface of the crimping rod. It is characterized by being set in parallel.

  Therefore, according to the present invention, the pedestal has a main body that holds the telescopic bar member and a receiving part that comes into contact with the installation surface. Therefore, the article is suspended from the telescopic bar member so that the load of the article is downward. Even if the overhanging bar member bends downward, only the main body holding the telescopic bar member is separated from the receiving part while the receiving part of the pedestal remains in contact with the installation surface. The contact area between the mounting surface and the installation surface can be secured, and as a result, the friction force between the receiving portion of the pedestal and the installation surface can be prevented from being lowered, and the tensioning function of the crimping rod or the crimping shelf can be ensured. can do.

  Furthermore, according to the present invention, in a state where the pedestal holds the expansion rod member and is installed on the installation surface, the main body and the receiving portion of the pedestal are coupled below the holding portion of the expansion rod member of the main body. In addition, since the receiving part is coupled to the main body by a hinge, a load perpendicular to the axial direction is applied to the telescopic bar member in a state where the crimping bar or the crimping shelf on which the base is mounted is installed on the installation surface. At this time, since this load can be transmitted to the receiving portion via the hinge through the main body, the load can be reliably supported by the frictional force between the receiving portion and the installation surface.

  Further, according to the present invention, since the elastic member is interposed between the main body of the pedestal and the receiving part, as described above, even if the telescopic bar member bends downward, the receiving part of the pedestal is Only the main body holding the telescopic rod member is separated from the receiving portion while being in contact with the installation surface, and further, the receiving portion is biased toward the installation surface side by the elastic member, so the receiving portion of the pedestal and the installation surface Thus, it is possible to improve the tension force of the crimping bar or the crimping shelf. Also, even if the installation surface becomes depressed due to the tensile force of the telescopic rod member with use over a long period of time and the tensile force becomes insufficient, the spring expands by the amount of the depression of the installation surface, and the tensile force is increased. Since it supplements, the stretch function of the said expansion-contraction rod member can be maintained suitably for a long period of time.

  According to the inventions of claims 7 to 9 and claims 11 to 13, in particular, the elastic force (repulsion) of each elastic member is obtained when the crimping bar or the crimping shelf is installed between the installation surfaces. Force) acts as a tension force on the installation surface, and the reaction force supports the crimping bar or the crimping shelf between the installation surfaces. At this time, for example, even if the elastic force of the elastic member interposed between the main body of the pedestal and the telescopic rod member decreases due to secular change, this decrease is caused between the main body of the pedestal and the receiving portion. By supplementing the elastic force of the interposed elastic member, the tension force acting on the installation surface of the crimping bar can be maintained well, and the tensioning function of the crimping bar can be suitably maintained for a long time.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of a crimping rod according to the present invention. 2 mainly shows a pedestal in the crimping rod of FIG. 1, (A) is a cross-sectional view showing a mounting state of the crimping rod on the wall surface, and (B) shows a state in the middle of mounting the crimping rod on the wall surface. Sectional view (C) is a sectional view taken along line CC in FIG. 2 (A).

  The crimping rod 10 shown in FIG. 1 is constructed between the wall surfaces W by the reaction force by acting on the wall surface W as the installation surface facing each other at a predetermined distance, and the telescopic rod member 11. And a pedestal 12.

  The telescopic rod member 11 is extendable in the axial direction. For example, an adjuster 18 is rotatably provided at one end of the first pipe 15, a female screw (not shown) is formed inside the adjuster 18, and the outer periphery of the second pipe 16. A male screw 19 provided on the second pipe 16 is screwed into the female screw, and a third pipe 17 is inserted into the second pipe 16 so as to be freely inserted and removed. The other end 13 of the first pipe 15 and the tip 14 of the third pipe 17 are held on the pedestal 12 as will be described later.

  The third pipe 17 moves in and out of the second pipe 16 and moves in the axial direction with respect to the second pipe 16, and the second pipe 16 moves in the axial direction with respect to the first pipe 15 by adjusting the adjuster 18. The telescopic rod member 11 is provided so as to be expandable and contractable in the axial direction. The second pipe 16 is screwed with a lock nut 20. When the tip of the lock nut 20 presses the third pipe 17, the movement of the third pipe 17 relative to the second pipe 16 is prevented.

  As shown in FIGS. 2 to 4, the pedestal 12 includes a main body 21 that fits and holds the other end portion 13 of the first pipe 15 and a distal end portion 14 of the third pipe 17, and a receiving portion that contacts the wall surface W. 22, and the main body 21 and the receiving portion 22 are coupled by a hinge 23.

  As shown in FIGS. 2 and 3, the main body 21 has a substantially trapezoidal shape when viewed from the front (FIG. 3A), and is formed with a recessed portion 24 as a bottomed cylindrical holding portion at a central position. Hinge pins 25 are integrally formed on both sides of the frame. Further, a spring support portion 26 is formed outside the bottom surface 28 of the recessed portion 24 as a holding portion. The first spring 27 as an elastic member can be accommodated in the recessed portion 24, and the base end portion of the first spring 27 contacts the bottom surface 28.

  A bottomed cylindrical end cap 29 is press-fitted into the distal end portion 14 of the third pipe 17 or the other end portion 13 of the first pipe 15 in the telescopic rod member 11, and these end portions 14 and 13 are reinforced. Is done. The tip end portion 14 of the third pipe 17 and the other end portion 15 of the first pipe 15 are fitted into the main body 21 by inserting the end cap 29 into the recessed portion 24 of the main body 21. Retained. At this time, the first spring 27 in the recessed portion 24 is inserted into the end cap 29, and the tip of the first spring 27 is engaged with the spring engaging portion 31 provided on the bottom 30 of the end cap 29. The Thus, the first spring 27 is interposed between the tip end portion 14 of the third pipe 17 or the other end portion 13 of the first pipe 15 and the main body 21 of the base 12. By adjusting the adjuster 18 shown in FIG. 1, the telescopic rod member 11 extends in the axial direction to compress the first spring 27, and the elastic force (repulsive force) generated in the first spring 27 by this compression is applied to the base 12. Acts on the main body 21.

  As shown in FIGS. 2 and 4, the receiving portion 22 has a substantially plate shape. On the surface, a pair of hinge pin abutting portions 32 protrudes on one end side, and a spring engaging portion 33 is formed on the other end side. Yes. A hinge 23 is configured by fitting the hinge pin 25 of the main body 21 to the hinge pin contact portion 32, and the main body 21 and the receiving portion 22 are provided to be rotatable around the hinge 23. In addition, attachment holes 35 are formed at a plurality of locations on the back surface of the receiving portion 22. A convex portion such as an elastic sheet, for example, a rubber sheet 36 is press-fitted into the mounting hole 35, and the rubber sheet 36 is attached to the back surface of the receiving portion 22 so that both are integrated. The rubber sheet 36 is in direct contact with the wall surface W. The elastic sheet is not limited to the rubber sheet 36, and is preferably made of a material having a large frictional force.

  Next, a procedure for attaching the crimping bar 10 configured as described above to the wall surface W will be described.

  In the state where the pedestal 12 is mounted on the other end 13 of the first pipe 15 and the tip 14 of the third pipe 17 in the telescopic rod member 11 shown in FIG. 1, the third pipe 17 of the telescopic rod member 11 is connected to the second pipe 16. The base 12 on both sides is pressed against the wall surface W. Next, in this state, the lock nut 20 is operated to fix the third pipe 17 to the second pipe 16, and then the adjuster 18 is operated.

  When the adjuster 18 is rotated, the second pipe 16 is pulled out of the first pipe 15 by a minute amount and the telescopic rod member 11 extends, whereby the main body 21 of the base 12 rotates around the hinge 23 and contacts the receiving portion 22. At the same time, the first spring 27 is compressed. Due to the compression of the first spring 27, the elastic force generated in the first spring 27 acts on the wall surface W as a tension force, and the crimping rod 10 is installed between the wall surfaces W by the reaction force of this tension force.

  Next, another embodiment for carrying out the present invention will be described. The description of the configuration described in the above embodiment is omitted.

  As shown in FIG. 2, the inner side of the proximal end of the second spring 34 as an elastic member is engaged with the spring engaging portion 33 of the receiving portion 22 of the base 12, and the distal end of the second spring 34 is the main body. 21 is abutted against the spring support 26 of the 21 and positioned. Accordingly, the second spring 34 is interposed between the main body 21 and the receiving portion 22. When the telescopic rod member 11 extends in the axial direction by adjustment of the adjuster 18 (FIG. 1) and the crimping rod 9 is installed between the wall surfaces W, the receiving portion 22 rotates around the hinge 23 with respect to the main body 21 to rotate the main body. 21 and at the same time the second spring 34 is compressed. Due to this compression, an elastic force is generated in the second spring 34, and this elastic force acts together with the elastic force generated in the first spring 27 as a pushing force to the wall surface W via the receiving portion 22 and the rubber sheet 36. . The reaction force of this tension force acts on the crimping rod 10 from the wall surface W, and the crimping rod 10 is installed between the wall surfaces W.

  In the state where the crimping rod 10 is installed on the wall surface W, as shown in FIG. 2A, the axis O1 of the first spring 27 and the axis O2 of the second spring 34 are both of the telescopic rod member 11. It is set substantially parallel to the axis O3. Further, the spring constant of the first spring 27 is set to be larger than the spring constant of the second spring 34, so that the elastic force generated in the first spring 27 is larger than the elastic force generated in the second spring 34. growing. For example, when the wall surface W is depressed due to aging, the elastic force generated in the second spring 34 functions to press the receiving portion 22 of the base 12 against the depressed portion, and the first spring 27 is When the elastic force decreases due to secular change or the like, the elastic force generated in the second spring 34 compensates for the decrease in the elastic force.

  When the load of the suspended article is applied to the telescopic rod member 11 perpendicular to the axial direction in the state where the crimping rod 10 is installed on the wall surface W, the load is received through the main body 21 of the base 12 via the hinge 23. 22 and is supported by the frictional force generated between the rubber sheet 36 and the wall surface W in the receiving portion 22.

  Further, in the state where the crimping bar 10 is installed on the wall surface W, the hinge 23 of the base 12 is preferably set so that the axis O4 (FIG. 3) of the hinge pin 25 is parallel to the floor or the ground. In this case, the elastic force of the second spring 34 interposed between the main body 21 coupled to the hinge pin 23 and the receiving portion 22 is obliquely downward with respect to the wall surface W as indicated by reference numeral F in FIG. Accordingly, the reaction force P acts obliquely upward from the wall surface W to the base 12. For this reason, the vertical component force Px of the reaction force P also supports the load of the suspended article perpendicular to the axial direction of the telescopic bar member 11 acting on the telescopic bar member 11.

  The procedure for attaching the crimping bar 10 configured as described above to the wall surface W is the same as that according to the above embodiment. When the adjuster 18 is rotated, the second pipe 16 is pulled out of the first pipe 15 by a minute amount and the telescopic rod member 11 extends, whereby the main body 21 of the base 12 rotates around the hinge 23 and contacts the receiving portion 22. At the same time, the first spring 27 and the second spring 34 are compressed. Due to the compression of the first spring 27 and the second spring 34, the elastic force generated in the springs 27 and 34 acts on the wall surface W as a tensile force, and the crimping rod 10 causes the wall surface W to react with the reaction force of the tensile force. It is built between W.

  With the configuration as described above, the following effects (1) to (4) are achieved according to the embodiment.

  (1) According to the present invention, the pedestal 12 has the main body 21 that holds the telescopic rod member 11 and the receiving portion 22 that comes into contact with the wall surface W. Even when the load of the article is applied and the telescopic bar member 11 bends downward, only the main body 21 that holds the telescopic bar member 11 while the receiving portion 22 of the base 12 is in contact with the wall surface W. Is separated from the receiving portion 22, it is possible to secure a larger contact area between the receiving portion 22 of the pedestal 12 and the wall surface W. As a result, the frictional force between the receiving portion 22 of the pedestal 12 and the wall surface W is reduced. This can prevent the crimping rod 10 from being stretched.

  (2) In a state where the pedestal 12 holds the expandable rod member 11 and is installed on the wall surface W, the main body 21 and the receiving portion 22 of the pedestal 12 are recessed portions 24 as holding portions of the expandable rod member 11 of the main body 21. Further, since the receiving portion 22 is coupled to the main body 21 by the hinge 23, in the state where the crimping rod 10 with the pedestal 12 mounted on the wall surface W is attached to the telescopic rod member 11 When a load orthogonal to the axial direction is applied, this load can be transmitted to the receiving portion 22 via the main body 21 and via the hinge 23, so that the frictional force between the rubber sheet 36 of the receiving portion 22 and the wall surface W can be used. The load can be reliably supported.

  (3) Since the second spring 34 as an elastic member is interposed between the main body 21 of the base 12 and the receiving portion 22, as described above, even when the telescopic rod member bends downward, Only the main body 21 holding the telescopic rod member 11 is separated from the receiving portion 22 while the receiving portion 22 of the pedestal 12 is in contact with the wall surface W, and the receiving portion 22 is moved to the wall W side by the second spring 34. Since it is biased, the frictional force between the receiving portion 22 of the base 12 and the wall surface W can be improved, and the tensioning function of the crimping rod 10 can be made more reliable. Further, when the state in which the crimping rod 10 is laid between the wall surfaces W is continued for a long period of time, even if the wall surface W is depressed, the elastic force of the second spring 34 causes the receiving portion 22 of the pedestal 12 to move by the amount corresponding to the depression. Even if the elastic force of the first spring 27 is reduced due to aging, the pressing force that the crimping rod 10 acts on the wall surface W is compensated by the elastic force of the second spring 34 compensating for this decrease. Can be maintained satisfactorily, so that the tensioning function of the crimping rod 10 can be suitably maintained for a long period of time.

  (4) The pedestal 12 is provided with a main body 21 that holds the telescopic rod member 11 and a receiving portion 22 that comes into contact with the installation surface, and can be rotated by a hinge 23, and the second spring 34. Presses the receiving portion 22 so as to fill the gap with the installation surface, so that even if there is a slight inclination on the installation surface, the receiving portion 22 fits the installation surface and a good installation state can be secured.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this. That is, a plurality of crimping rods 10 configured as described above, for example, as shown in FIG. 5, a pair of crimping rods 10 arranged in parallel on both sides and a plurality of crosspieces 41 are disposed. The crimping shelf 40 may be configured by spanning the horizontal member 42 over the two crimping rods 10. Also in this case, since the crimping bar 10 of the crimping shelf 40 is configured in the same manner as in the above embodiment, the same effects as the effects (1) to (4) of the above embodiment are achieved.

  The main body 21 and the receiving portion 22 of the pedestal 12 are described as being connected by the hinge 23. However, in the state where the crimping rod 10 or the crimping shelf 40 is installed between the wall surfaces W, the receiving portion 22 of the pedestal 12 is placed on the wall surface. A biasing force for biasing to the W side may be provided on the hinge 23 itself. With such a configuration, the same effect as that of the above-described embodiment can be achieved without providing the second spring 34. .

  Moreover, although the springs 27 and 34 were illustrated as an elastic member in embodiment, this includes other springs, such as a coil spring, a leaf | plate spring, a spiral spring, for example.

  In addition, the configuration in which the first spring 27 exists between the telescopic rod member 11 and the main body 21 of the pedestal 12 has been described. However, the first spring 27 does not exist and is installed only by rotating the adjuster 18. Even in the case where a tension force is formed on the surface, the same effects as those of the above-described embodiment can be obtained.

  Moreover, although the base 12 is shape | molded with ABS resin, you may comprise it with materials other than that.

It is a front view which shows one Embodiment of the crimping rod which concerns on this invention. 1 mainly shows a pedestal in the crimping rod of FIG. 1, (A) is a sectional view showing a mounting state of the crimping rod to the wall surface, (B) is a sectional view showing a middle state of mounting of the crimping rod to the wall surface, (C) These are sectional drawings which follow the CC line of Drawing 2 (A). 2 shows the main body of the pedestal of FIG. 2, (A) is a front view, (B) is a plan view, (C) is a left side view, and (D) is a cross-sectional view along the line DD in FIG. is there. 2A and 2B show a receiving part in the pedestal of FIG. 2, (A) is a front view, (B) is an upper half plan view, a lower half bottom view, (C) is a left side view, and (D) is D in FIG. 4 (B). FIG. 5E is a cross-sectional view taken along the line D, and FIG. 5E is a cross-sectional view taken along the line EE in FIG. It is a top view which shows one Embodiment of the crimp shelf which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Crimp bar 11 Telescopic rod member 12 Base 15 1st pipe 16 2nd pipe 17 3rd pipe 21 Main body 22 Receiving part 23 Hinge 24 Recessed part (holding part)
25 Hinge pin 27 First spring (elastic member)
32 Hinge pin contact portion 34 Second spring (elastic member)
40 Crimp shelf W Wall (installation surface)

Claims (13)

A pedestal that holds and stretches a telescopic rod member that exerts a tensile force on the opposite installation surfaces,
The pedestal has a main body for holding the telescopic bar member and a receiving portion capable of contacting the installation surface, and the main body and the receiving portion are coupled to each other.   The main body has a holding portion for holding the telescopic bar member, and in a state where the pedestal holds the telescopic bar member and is installed on the installation surface, the main body and the receiving portion are more than the holding portion. The pedestal according to claim 1, wherein the pedestal is coupled at a lower side.   The main body and the receiving part are coupled by a hinge, and the main body can be rotated with respect to the receiving part by the hinge in a state where the pedestal holds the telescopic rod member and is installed on the installation surface. The pedestal according to claim 1, wherein the pedestal is configured as described above.   The pedestal according to any one of claims 1 to 3, wherein an elastic member is interposed between the main body and the receiving portion.   The base according to any one of claims 1 to 5, wherein the elastic member is a spring. In a crimping rod that is installed by applying a tension force to the installation surfaces facing each other,
A crimping bar comprising: a telescopic rod member capable of stretching in an axial direction; and the pedestal according to any one of claims 1 to 5.   The crimping bar according to claim 6, wherein an elastic member is interposed between the main body of the base and the telescopic bar member.   The elastic force of the elastic member interposed between the main body of the pedestal and the telescopic rod member is set larger than the elastic force of the elastic member interposed between the main body of the pedestal and the receiving portion. The crimping bar according to claim 7.   The elastic member interposed between the main body of the base and the telescopic rod member and the elastic member interposed between the main body of the base and the receiving portion are springs, and the axis of the spring is 9. The crimping bar according to claim 7, wherein the crimping bar is set substantially parallel to the axis of the telescopic bar member in a state where the crimping bar is installed on the installation surface. In a crimping shelf equipped with a crimping rod that is installed by acting a tension force on the opposite installation surfaces,
A crimping shelf comprising: an extensible rod member that can be expanded and contracted in the axial direction; and the pedestal according to any one of claims 1 to 5.   The crimping shelf according to claim 10, wherein an elastic member is interposed between the main body of the base and the telescopic bar member.   The elastic force of the elastic member interposed between the main body of the pedestal and the telescopic rod member is set larger than the elastic force of the elastic member interposed between the main body of the pedestal and the receiving portion. The crimping shelf according to claim 11. The elastic member interposed between the main body of the pedestal and the telescopic rod member and the elastic member interposed between the main body of the pedestal and the receiving portion are springs, and the axis of the spring is 13. The crimping shelf according to claim 11, wherein the crimping shelf is set substantially parallel to the axis of the telescopic rod member when the crimping rod is installed on the installation surface.

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