JP5955112B2 - Pipe nut holder and pipe - Google Patents

Description

  The present invention relates to a nut holder for a pipe material and a pipe material, in particular, a nut holder for a pipe material that holds a nut arranged on the inner surface side in order to install a bolt from the outer surface side, and the nut holder for the pipe material. Related to pipe material.

Conventionally, when a cap is put on the tip of a tubular support column erected on the ground and the cap is fixed with a bolt, a work tool for fixing a nut from the outer surface side is inserted into the support column or the inner surface side of the cap. Therefore, a hexagonal nut or the like was fixed in advance to the inner surface of the column or cap by welding and bolts were installed from the outer surface side. For this reason, there is a problem that rust is generated due to aging deterioration of the welded part, etc., and the welded part is coated with anticorrosive paint or the galvanized treatment is applied to the cap welded with the nut, and the nut screw part is screwed. It was.
Therefore, in order to eliminate the occurrence of rust without applying rust prevention treatment, instead of welding and fixing hexagon nuts, etc., a hexagon nut mounting hole that accommodates a part of the hexagon nut is provided around the bolt through hole on the inner surface of the cap, An invention has been disclosed in which a hex nut set in a pipe hex nut holder in advance is installed in a hex nut mounting hole (see, for example, Patent Document 1).

JP 2003-35306 A (page 3-4, FIG. 2)

The pipe hex nut holder disclosed in Patent Document 1 includes a metal strip having elasticity such as a high-tension thin steel plate, bolt insertion holes formed at both ends of the metal strip, and a punching process. And a protrusion formed at the periphery of the bolt insertion hole by bending, and a part of the hexagon nut is accommodated (held) within the range surrounded by the protrusions at both ends of the metal strip B) Inserted into the inner circumference of the cap in a state of being bent in a substantially U shape, and when the area surrounded by the protrusions matches the position of the hexagon nut mounting hole, loosen the bent force, There are the following problems.
(A) A nut is placed on the protrusion formed in the peripheral portion of the bolt insertion hole at both ends of the metal strip, and the metal strip is bent into a substantially U shape without dropping the nut into the cap. The operator is limited because considerable skill is required for the insertion work, positioning work to accommodate a part of the hexagon nut in the hexagon nut mounting hole on the inner surface of the cap, and the work to loosen the bending force. In addition, since the work takes time, the construction cost cannot be kept low.
(I) That is, when the metal strip is bent into a substantially U shape, both ends of the metal strip are not usually parallel, and therefore the protrusions are not parallel to the side of the hexagon nut. It is difficult to accommodate a part of the hex nut in the hex nut mounting hole.
(U) In particular, when the metal strip is bent in a substantially C shape, the metal strip is excessive so that the radius of curvature is small so that the widest position does not hit the inner surface of the cap. Not only does it have to be bent and inserted into the cap, but when the bending force is loosened, the widest position hits the inner surface of the cap and the force for pressing the hex nut becomes weaker. Furthermore, it cannot be used when a plurality of hexagon nuts are arranged relatively close to each other.
(E) In addition, since a metal strip bent into a substantially U shape is inserted into the cap, a space of a predetermined length is required in the cap, so that the shape of the cap that can be used is limited. .
(O) Furthermore, since hexagon nuts are arranged at the opposite positions of the cap, when the hexagon nut is arranged only on one side of the cap, when the force that bent the metal strip is loosened There is a possibility that the hex nut may come off from the range surrounded by the protrusion, or the force for pressing the hex nut may be weakened.
(K) Since a suitable work tool is not disclosed, a metal strip having sharp edges and corners is handled by hand (finger), so that work is not preferable in terms of safety.

The present invention responds to such a demand, and the first object is to arrange the nut on the inner surface of the pipe material by a simple operation in order to enable the installation of the bolt from the outer surface side of the pipe material. An object of the present invention is to provide a nut holder for a pipe material.
A second object is to provide a nut holder for a pipe material that does not depend on the shape of the pipe material and can be used even when the nuts are not opposed to each other.
Furthermore, the third object is to provide a pipe member in which the pipe nut holder is installed.

(1) The nut holder for a pipe according to the present invention includes a holder recess into which a nut can be fitted, and is formed of an elastically deformable columnar body formed on at least one end surface . Formed shallower than the thickness,
In a state where a part of the nut is fitted in the holder recess, the columnar body is elastically compressed in the axial direction and inserted into the tube material, and is formed on the inner surface of the tube material so that the nut cannot be rotated. A part of the nut enters the tube recess so as not to rotate and is prevented from being pulled out by relaxing the elastic compression at the position of the tube recess where the tube enters.
(2) In the above (1), the columnar body is any of urethane foam, polystyrene foam, hard sponge, natural rubber or synthetic rubber.
(3) In the above (1) or (2), the holder recess has an outer peripheral shape substantially the same as the outer peripheral shape of the columnar body, an inner peripheral shape into which the nut can be fitted, and a thickness of the nut. It is characterized by being formed by adhering a plate material having a thickness smaller than that to the end of the columnar body.
(4) In the above (1), the columnar body is a coil spring, and a coil end plate in which a holder recess into which the nut can be fitted is formed on at least one end of the coil spring. It is characterized by.

(5) Moreover, the pipe material which concerns on this invention is formed in the inner surface of the nut holder for pipe materials in any one of said (1) thru | or (4), the nut inserted in the end surface of this nut holder for pipe materials, and an inner surface And a tube material recess shallower than the thickness of the nut,
A part of the nut penetrates into the tube material recess and is held non-rotatable by the tube material nut holder.
(6) In the above (5), a nut guide groove that reaches the tube recess from the end and is shallower than the depth of the tube recess is formed.
The nut is movable toward the tube material recess in a state of entering the nut guide groove.

Since the nut holder for pipe materials concerning the present invention is the above-mentioned composition, the following effect is produced.
(I) With the nut fitted in the holder recess, the columnar body is elastically compressed in the axial direction and inserted into the tube, and the elastic compression is eased at the position of the tube recess. Since it penetrates into the tube material recess and is held so as not to be pulled out, the nut can be reliably installed by a simple operation. In the present invention, the nut is a generic term for nuts whose outer peripheral shape is not circular in cross section (cylindrical shape, barrel shape, etc.), for example, nuts having a quadrangular cross section, hexagonal cross section, octagonal cross section, elliptical cross section, etc. It is.
(Ii) Therefore, the operation of installing the nut on the inner surface of the pipe member in a non-rotatable manner can be quickly performed without being limited to those having considerable skills, so that the construction cost can be kept low. .
(Iii) Further, even when a plurality of nuts are arranged in a relatively close position, the nuts can be reliably installed by a simple operation.
(Iv) Further, since a space having a predetermined length is not required inside the pipe material, the degree of freedom of the shape of the usable pipe material is expanded.
(V) Furthermore, it is possible to install the nut in a non-rotatable manner only at one of the opposed positions on the inner surface of the pipe material by a simple operation.
(Vi) Furthermore, since sharp edges and corners are not provided, even if the nut holder for pipe material is handled by hand (finger), work safety is ensured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a pipe nut holder according to a first embodiment of the present invention, where (a) is a cross-sectional view in front view, (b) is a top view, and (c) is a bottom view. It is sectional drawing of the front view explaining the nut holder for pipe materials shown in FIG. 1, Comprising: (a) is the state in which the hexagon nut was installed, (b) is the compressed state. It demonstrates the nut holder for pipe materials concerning Embodiment 2 of this invention, Comprising: (a) is sectional drawing of front view, (b) is a top view, (c) is a bottom view. It is sectional drawing of the front view explaining the nut holder for pipe materials shown in FIG. 1, Comprising: (a) is the state in which the hexagon nut was installed, (b) is the compressed state. Sectional drawing of front view which shows the pipe material which comprises the pipe material which concerns on Embodiment 3 of this invention. 5A and 5B are diagrams illustrating a pipe material shown in FIG. 5, in which FIG. 5A is a cross-sectional view taken along a line XX in FIG. 5, and FIG. 5A and 5B are explanatory views of the pipe material, in which FIG. 5A is a front sectional view showing the pipe material, and FIG. 5B is a front sectional view showing an example of using the pipe material. Sectional drawing of the front view which shows the pipe material which concerns on Embodiment 4 of this invention, and shows the pipe material which comprises a pipe material. Sectional drawing of the front view which shows the pipe material shown in FIG. FIGS. 9A and 9B show a modification of the pipe material constituting the pipe material shown in FIG. 8, wherein FIG. 9A is a cross-sectional view taken along the line XX of FIG. 8, and FIG. The perspective view which shows the modification of the pipe material which comprises the pipe material shown in FIG. Sectional drawing of the side view which shows the use condition of the pipe material which concerns on Embodiment 5. FIG. Sectional drawing of the front view of the nut holder for pipe materials which concerns on other embodiment of this invention.

[Embodiment 1]
FIGS. 1 and 2 illustrate a pipe nut holder according to Embodiment 1 of the present invention. FIG. 1 (a) is a sectional view in front view, and FIG. 1 (b) is a top view. 1 (c) is a bottom view, FIG. 2 (a) is a front sectional view showing a state in which a hex nut is installed, and FIG. 2 (b) is compressed in a state in which the hex nut is installed. It is sectional drawing of the front view which shows the state. In addition, each figure is shown typically and this invention is not limited to the form shown in figure. Moreover, about the hexagon nut, in order to clarify that it is a hexagon nut, it is not made the cross section.
In the first embodiment, the hexagonal nut is described for convenience of explanation. However, the present invention is not limited to a nut having a hexagonal cross section in the outer periphery, and the outer shape is circular in cross section ( A nut that is not a cylindrical shape or a barrel shape, for example, a nut having a rectangular cross section or an elliptical cross section may be used. Therefore, for example, in the case of a nut having a quadrangular cross section or an elliptical cross section, “hexagon” described below is replaced with “square or ellipse”.

  1A to 1C, the pipe nut holder 10 includes a columnar body 1 and a holder recess 2 formed on the end surface 1 a of the columnar body 1. The bottom surface 1d is a substantially flat surface.

(Columnar)
The columnar body 1 is an elastic body whose outer periphery 1c is circular in cross section, and is, for example, any one of urethane foam, polystyrene foam, hard sponge, natural rubber, or synthetic rubber.
Note that the columnar body 1 is not limited to a cylinder, and may be a prism (such as a quadrangular column or a hexagonal column).

(Holding tool recess)
The holder recess 2 is a recess into which the hexagon nut 11 can be fitted, and has a “depth A” smaller (shallow) than the thickness H of the hexagon nut 11 (see FIG. 2).
In addition, the inner peripheral shape of the holder recess 2 is not limited to a hexagon, and may be a quadrangle or a circle.

(Hex nut insertion)
In FIG. 2A, a hex nut 11 is fitted in the holder recess 2. The fitting is not limited to “fitting (tightening fit)” that deforms at least a part of the inner peripheral shape of the holder recess 2, but the inner periphery of the holder recess 2 and the outer periphery of the hex nut 11. It includes “fitting (clearance fit)” with a gap between them.
In FIG. 2B, the space between the other end surface 1b of the columnar body 1 and the end surface 11a of the hexagon nut 11 (more precisely, between the end surface 1b and the bottom surface 1d of the holder recess 2) is compressed. . At this time, the distance between the other end surface 1b of the columnar body 1 and the end surface 11a of the hexagon nut 11 is reduced from “height B1” before compression to “height C1”.

[Embodiment 2]
3 and 4 illustrate a pipe nut holder according to Embodiment 2 of the present invention. FIG. 3 (a) is a front sectional view, and FIG. 3 (b) is a top view. 3 (c) is a bottom view, FIG. 4 (a) is a front sectional view showing a state in which the hexagon nut is installed, and FIG. 4 (b) is compressed in a state in which the hexagon nut is installed. It is sectional drawing of the front view which shows the state. In addition, each figure is shown typically and this invention is not limited to the form shown in figure.
3 (a) to 3 (c), the nut holder 20 for pipe material has a columnar body 3 having planar end surfaces 3a and 3b, and a plate-like body bonded to the end surfaces 3a and 3b of the columnar body 3. Plate members 5 and 6.

(Columnar)
The columnar body 3 is an elastic body having an outer periphery 3c having a square cross section, and is, for example, foamed urethane, foamed polystyrene, hard sponge, natural rubber, or synthetic rubber.
Note that the columnar body 3 is not limited to a square column, and may be a cylinder, a hexagonal column, or the like.

(Plate material)
The plate 5 includes an outer periphery 5c that is substantially the same as the shape of the outer periphery 3c of the columnar body 3, an inner periphery 5d into which a hexagon nut 21 (see FIG. 4) can be fitted, and a thickness Ta that is thinner than the thickness Ha of the hexagon nut 21. Are provided. Further, the plate 6 has an outer periphery 6c substantially the same as the shape of the outer periphery 3c of the columnar body 3, an inner periphery 6d into which the hexagon nut 22 (see FIG. 4) can be fitted, and a thickness smaller than the thickness Hb of the hexagon nut 22. Tb.
The plate members 5 and 6 are elastic bodies, and may be the same material as the columnar body 3 or a different material. For example, any of urethane foam, polystyrene foam, hard sponge, natural rubber, or synthetic rubber.

Therefore, the concave portion corresponding to the holder concave portion 2 in the first embodiment can be formed accurately and simply by simply bonding the plate members 5 and 6 to the end surfaces 3a and 3b, respectively. In particular, since the bottom surfaces of the recesses are the end surfaces 3 a and 3 b of the columnar body 3, it becomes easy to make the column flat.
The fitting is not limited to “fitting (tightening fit)” that deforms at least a part of the inner peripheral shape of the holder recess 2, but the inner periphery of the holder recess 2 and the outer periphery of the hex nut 21. It includes “fitting (clearance fit)” with a gap between them.
The plate members 5 and 6 are similar in shape to the outer peripheries 5c and 6c and the inner peripheries 5d and 6d, but may have different shapes.

(Hex nut insertion)
In FIG. 4A, a hexagonal nut 21 is fitted into the inner periphery 5 d of the plate member 5, and a hexagonal nut 22 is fitted into the inner periphery 6 d of the plate member 6.
In FIG. 4B, a space between one end surface 21a of the hexagon nut 21 and the other end surface 22b of the hexagon nut 22 (precisely, between one end surface 3a and the other end surface 3b of the columnar body 3). It is compressed. At this time, the distance between one end face 21a of the hexagon nut 21 and one end face 22b of the hexagon nut 22 is "height C2."
In addition, although the above has shown the case where the hex nut 21 and the hex nut 22 are different, both may be the same hex nut. In the case of the same hexagon nut, the thicknesses of the plate members 5 and 6 may be the same or different, and the shape of the inner periphery 5d and the shape of the inner periphery 6d may be the same or different.

[Embodiment 3]
5 to 7 illustrate a pipe according to the third embodiment of the present invention. FIG. 5 is a front sectional view showing the pipe constituting the pipe, and FIG. FIG. 6B is a cross-sectional view of the YY cross section of FIG. 5, FIG. 7A is a front cross-sectional view showing the pipe material, and FIG. 7B is a pipe material. It is sectional drawing of the front view which shows the usage example. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1 or Embodiment 2, or an equivalent part, and one part description is abbreviate | omitted. In addition, each figure is shown typically and this invention is not limited to the form shown in figure.
In FIG. 6, since the pipe material 100 is obtained by installing the pipe material nut holder 10 (Embodiment 1) inside a substantially cylindrical pipe material 30, first, the pipe material 30 constituting the pipe material 100 will be described. Then, the tube material 100 will be described based on FIG.

(Tube material)
5 and 6 (a) and 6 (b), the tube material 30 is a substantially circular tube material, and flat portions 32a and 32b that are parallel to each other are formed on the inner surface 31 having a circular cross section at opposing positions. In the flat portion 32a, a pipe material recess 33a having a depth D smaller (shallow) than the thickness (height) H of the hex nut 11 for the hexagon nut 11 to enter is formed, and at the center of the pipe material recess 33a, A bolt hole 34 a is formed through which a male thread portion of a bolt (not shown) that is screwed into the hexagon nut 11 passes.
At this time, since the inner peripheral shape of the tube material recess 33a is similar to the shape of the outer periphery of the hexagon nut 11, and is slightly larger than the shape of the outer periphery of the hexagon nut 11, the hexagon nut that has entered the tube material recess 33a. 11 is held non-rotatable by the tube material recess 33a.

The distance between the flat portion 32a and the flat portion 32b is “insertion interval E”, and the distance obtained by adding the depth D of the tube material recess 33a to the insertion interval E is “installation interval F”.
In addition, the inner peripheral shape of the pipe material recessed part 33a is not limited to what is similar to the outer peripheral shape of the hexagon nut 11, and any one can be used as long as the invaded hexagon nut 11 can be held non-rotatably. The shape may also be
Moreover, although the pipe material 30 has a pair in which the flat portions 32a and 32b face each other, two or more pairs may be formed, and each of the flat portions 32a and 32b or the like has a plurality of pipe material recesses 33a. It may be formed.
Further, although the flat portions 32a and 32b are formed as described above, the formation of the flat portions 32b may be omitted, or the formation of the flat portions 32a and 32b may be omitted. Furthermore, the pipe material 30 is not limited to a substantially cylindrical shape, and may be a cylinder having a cross-sectional ellipse or a rectangular cross-section.

(Tube material)
7A, in the pipe material 100, the hexagon nut 11 enters the pipe material recess 33a of the pipe material 30, and is held so as not to rotate.
That is, in the state in which the hexagon nut 11 is fitted in the holder recess 2 of the pipe nut holder 10 (see FIG. 2A), the pipe nut holder 10 is compressed (see FIG. 2B). In the state where the height after compression is smaller than the insertion interval E of the tube material 30, the tube material 30 is inserted into the tube material 30. When the hexagonal nut 11 is inserted to the position of the tube material recess 33a, the compression is relaxed (or released) and enters the tube material recess 33a.
At this time, when the height B1 before compression is larger (higher) than the installation interval F of the pipe member 30, the hexagon nut 11 is pressed in the outer circumferential direction by the elastic recovery of the columnar body 1. That is, by setting the height B1 before compression in consideration of the installation interval F, the force for pressing the hexagon nut 11 in the outer peripheral direction can be adjusted.
On the other hand, when the height B1 before compression is smaller (lower) than the installation interval F of the pipe member 30, or when the elastic recovery of the columnar body 1 is insufficient, the hexagon nut 11 is held in the holder recess 2. It is not pushed in the outer circumferential direction.

(Usage example of pipe material)
In FIG. 7B, the tube material 100 is inserted into the tube material 80, and the tube material 30 and the tube material 80 are connected by a bolt 90.
At this time, the bolt 90 is screwed into the hexagon nut 11, and a through-hole 81 through which the threaded portion of the bolt 90 can pass is formed in the pipe member 80, and the bolt 90 is connected to the pipe member 80 from the outer surface side. The through hole 81 and the bolt hole 34 a of the pipe 30 are penetrated and screwed into the hexagon nut 11.
That is, since the hexagon nut 11 is non-rotatably installed on the inner surface of the tube material 30 by the tube material nut holder 10, the tube material 30 and the tube material 80 can be easily connected without inserting tools into the tube material 30. Can be connected.

(effect)
Since the pipe material 100 has the above configuration, the following effects can be obtained.
(B) With the hexagon nut fitted into the holder recess, compress the nut holder for pipe material and insert it into the pipe material. Since it can be installed (held), it is possible to perform a quick work by an operator who does not have considerable skills, and the construction cost can be kept low.
(B) By setting the height before compression, the hexagon nut can be pressed against the pipe material with a desired force simply and reliably.
(C) Further, since a plurality of hexagon nuts can be used even when they are arranged relatively close to each other or when the internal space of the pipe material is relatively narrow, the degree of freedom of the shape of the usable pipe material increases.
(D) Furthermore, even when the hexagon nut is not installed opposite to the inner surface of the pipe material, only one hexagon nut can be installed.
(E) Since there are no sharp edges or corners, work safety is maintained even when handled by hand (finger).

[Embodiment 4]
8 to 11 illustrate a tube material according to Embodiment 4 of the present invention. FIG. 8 is a cross-sectional view in front view showing the tube material constituting the tube material, and FIG. 9 is a cross-sectional view in front view showing the tube material. 10A is a cross-sectional view taken along the line XX of FIG. 8, FIG. 10B is a cross-sectional view taken along the line YY of FIG. 8, and FIG. 11 is a modified example of the pipe constituting the pipe. It is a perspective view shown. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 2 or Embodiment 3, or an equivalent part, and description of one part is abbreviate | omitted. In addition, each figure is shown typically and this invention is not limited to the form shown in figure.
In FIG. 9, since the pipe material 200 is obtained by installing the pipe nut holder 20 (Embodiment 2) inside a substantially cylindrical pipe material 40, first, the pipe material 200 is configured based on FIG. 8. The tube material 40 will be described, and then the tube material 200 will be described with reference to FIG.

(Tube material)
In FIG. 8, the pipe material 40 is a substantially circular pipe material, and flat portions 42 a and 42 b that are parallel to each other are formed on the inner surface 41 having a circular cross section, and the hexagon nut 21 enters the flat portion 42 a. For this purpose, a pipe material recess 43a having a depth Da smaller (shallow) than the thickness (height) Ha of the hexagon nut 21 is formed, and a bolt (not shown) is screwed into the hexagon nut 21 at the center of the pipe material recess 43a. Bolt holes 44a are formed through which the male threaded portions of) penetrate. Further, the flat portion 42b is formed with a pipe material recess 43b having a depth Db smaller (shallow) than the thickness (height) Hb of the hex nut 22 for allowing the hexagon nut 22 to enter, and the center of the pipe material recess 43b. In addition, a bolt hole 44b is formed through which a male screw portion of a bolt (not shown) that is screwed into the hexagon nut 22 passes.

At this time, the inner peripheral shape of the tube material recesses 43a and 43b is similar to the shape of the outer periphery of the hexagon nuts 21 and 22, and is slightly larger than the shape of the outer periphery of the hexagon nuts 21 and 22, so The hexagon nuts 21 and 22 that have entered the 43a and 43b are held non-rotatable by the pipe material recesses 43a and 43b.
Further, the distance between the flat portion 42a and the flat portion 42b is “insertion interval E”, and the distance obtained by adding the depth Da of the tube material recess 43a and the depth Db of the tube material recess 43b to the insertion interval E is “installation interval F”. "It has become.
In addition, the inner peripheral shape of the pipe material recesses 43a and 43b is not limited to a shape similar to the outer peripheral shape of the hexagon nuts 21 and 22, and the invaded hexagon nuts 21 and 22 can be held unrotatable. Any shape is possible as long as it is possible.
Moreover, although the flat parts 42a and 42b are formed above, formation of one or both may be omitted. Furthermore, the pipe member 40 is not limited to a substantially cylindrical shape, and may be a cylinder having an elliptical cross section or a rectangular cross section.

(Tube material)
In FIG. 9, in the pipe material 200, the hexagon nuts 21 and 22 enter the pipe material recesses 43 a and 43 b of the pipe material 40 and are held so as not to rotate.
That is, with the hexagon nut 21 and the hexagon nut 22 fitted into the inner periphery 5d of the plate member 5 and the inner periphery 6d of the plate member 6 (see FIG. 4A), the tube nut holder 20 is compressed ( 4B), the compressed height C2 is smaller than the insertion interval E of the tube material 40 and is inserted into the tube material 40. Then, when the hexagon nuts 21 and 22 are inserted to the positions of the tube recesses 43a and 43b, the compression is relaxed (or released) and enters the tube recesses 43a and 43b.
At this time, when the height B2 before compression is larger (higher) than the installation interval F of the tube material 40, the columnar body 3 is elastically restored, whereby the hexagon nuts 21 and 22 are pressed in the outer circumferential direction. That is, by setting the height B2 before compression in consideration of the installation interval F, the force for pressing the hexagon nuts 21 and 22 in the outer circumferential direction can be adjusted.
On the other hand, when the height B2 before compression is smaller (lower) than the installation interval F of the pipe member 40, or when the elastic recovery of the columnar body 3 is insufficient, the hexagon nuts 21 and 22 are the inner circumferences 5d of the plate members 5 and 6. , 6d, but not pressed in the outer circumferential direction.

(Modification of pipe material)
10A, 10 </ b> B, and 11, a pipe member 50 is a modification of the pipe member 40, and nut guide grooves 45 a and 45 b are formed in the pipe member 40.
That is, nut guide grooves 45a and 45b that reach the pipe material concave portions 43a and 43b from the pipe ends are formed in the flat portions 42a and 42b. At this time, the nut guide groove 45a allows the hexagonal nut 21 to enter, and is shallower than the depth Da of the tube material recess 43a, and the nut guide groove 45b allows the hexagon nut 22 to enter and is shallower than the depth Db of the tube material recess 43b. It has become.

Therefore, a distance G (hereinafter referred to as “guidance interval”) G between the bottom surface of the nut guide groove 45a and the bottom surface of the nut guide groove 45b is larger (wider) than the insertion interval E. For this reason, the pipe nut holder 20 into which the hexagon nuts 21 and 22 are fitted does not need to be compressed to the insertion interval E when the compressed height C2 is inserted into the pipe 40, and is larger than the insertion interval E. The tube 50 can be installed only by being compressed to the guide interval G.
Further, since the hexagon nuts 21 and 22 are guided by the nut guide grooves 45a and 45b and reach the pipe material recesses 43a and 43b, the pipe material nut holder 20 into which the hexagon nuts 21 and 22 are fitted has the hexagon nuts 21 and 22 attached thereto. When the nut guide grooves 45a and 45b are entered, the compression is relaxed (that is, pressed or held without being pressed).
Therefore, the pipe member 200 can be used in the same manner as the pipe member 100. The same effect can be obtained, and the installation work is further facilitated. Further, a similar nut guiding groove may be formed in the tube material 100.

[Embodiment 5]
FIG. 12 is a side sectional view for explaining the pipe according to the fifth embodiment of the present invention and showing a use state of the pipe. In addition, the same code | symbol is attached | subjected to the part which is the same as Embodiment 3, or an equivalent part, and a part of description is abbreviate | omitted. In addition, each figure is shown typically and this invention is not limited to the form shown in figure.
In FIG. 12, a pipe material 300 is one in which two pipe nut holders 10 (Embodiment 1) are installed inside a substantially cylindrical pipe material 60, and the pipe material 100 (Embodiment 3) has. Since the pipe 60 is different from the pipe 100 in that the pipe 60 has the same configuration as that of the pipe 30 and is otherwise the same in the other points, the portion of the pipe 60 that is different from the pipe 30 will be described with reference to FIG. .

(Tube material)
In FIG. 12, the pipe body 300 is comprised from the pipe material 60 and the hexagon nuts 12a and 12b. The pipe member 60 is a substantially circular pipe member, and flat portions 32a and 32b that are parallel to each other are formed on the inner surface 31 having a circular cross section at opposite positions, and the hexagon nuts 12a and 12b enter the flat portion 32a. Tube material recesses 33a and 33b having depths Da and Db smaller (shallow) than the thicknesses (heights) Ha and Hb of the hexagon nuts 12a and 12b are formed, and the hexagon nut 12a is formed at the center of the tube material recesses 33a and 33b. , 12b are formed with bolt holes 34a, 34b through which the male screw portions of the bolts 90a, 90b pass.
That is, the tube material recesses 33a and 33b are the same as the tube material recess 33a in the tube material 100 (Embodiment 3), and are formed at a predetermined interval.

(Usage example of pipe material)
In FIG. 12, the end faces of the pipe material 80a and the pipe material 80b are abutted, and the pipe material 300 is inserted across the pipe material 80a and the pipe material 80b.
And the pipe material 80a and the pipe material 60 are connected by the volt | bolt 90a, and the pipe material 80b and the pipe material 60 are connected by the volt | bolt 90b.
At this time, the bolts 90a and 90b are screwed into the hexagon nuts 12a and 12b, and the pipe members 80a and 80b are formed with through holes 81a and 81b through which the threaded portions of the bolts 90a and 90b can pass. 90a and 90b penetrate the through holes 81a and 81b of the pipe members 80a and 80b and the bolt holes 34a and 34b of the pipe member 60 from the outer surface side, and are screwed into the hexagon nuts 12a and 12b, respectively.

That is, since the hexagon nuts 12 a and 12 b are non-rotatably installed on the inner surface of the pipe member 60 by the pipe member nut holder 10, the pipe member 80 a is inserted through the pipe member 60 without inserting tools into the pipe member 60. And the pipe member 80b can be easily connected.
The bolts 90a and 90b are the same and may be different.
Moreover, although the pipe material 80a and the pipe material 80b have shown what is the same shape, each outer diameter or internal diameter may differ. When the inner diameters of the pipe member 80a and the pipe member 80b are different, the pipe member 60 has two ranges having different outer diameters so that the pipe members 80a and 80b can be inserted into the inside.

(effect)
Since the pipe material 300 has the above configuration, the same effect as the pipe material 100 (Embodiment 3) can be obtained.

[Other embodiments]
FIG. 13 is a cross-sectional view in front view for explaining a pipe nut holder according to another embodiment of the present invention. In addition, each figure is shown typically and this invention is not limited to the form shown in figure.
In FIG. 13, a pipe nut holder 70 is obtained by changing the columnar body 3 of the pipe nut holder 20 (Embodiment 2) to a coil spring 7 and changing plate members 5 and 6 to end members 8 and 9. It is. That is, the end members 8 and 9 are formed with recesses 8d and 9d having bottom surfaces 8e and 9e, respectively, and protrusions 8f and 9f that enter the inner periphery of the coil spring 7.
At this time, since the recesses 8d and 9d function in the same manner as the inner peripheries 5d and 6d of the tube material nut holder 20, the tube material nut holder 70 has the same effect as the tube material nut holder 20.
Note that one of the end members 8 and 9 may be omitted.

  Since the present invention is configured as described above, as a nut holder for a pipe that can be non-rotatably installed on the inner surface of the pipe, and as a pipe installed on a pipe of various shapes, the pipes can be connected to each other. It can be widely used as a connecting member.

DESCRIPTION OF SYMBOLS 1 Columnar body 1a End surface 1b End surface 1c Outer periphery 1d Bottom surface 2 Holder recessed part 3 Columnar body 3a End surface 3b End surface 3c Outer periphery 5 Plate material 5c Outer periphery 5d Inner periphery 6 Plate material 6c Outer periphery 6d Inner periphery 8 Coil spring 8 9 End member 9d Recess 9e Bottom surface 9f Projection 10 Pipe nut holder 11 Hex nut 11a End face 12a Hex nut 12b Hex nut 20 Pipe nut holder 21 Hex nut 21a End face 22 Hex nut 22b End face 30 Pipe 31 Inner face 32a Flat part 32b Flat portion 33a Tube material recess 33b Tube material recess 34a Bolt hole 34b Bolt hole 40 Tube 41 Inner surface 42a Flat portion 42b Flat portion 43a Tube material recess 43b Tube material recess 44a Bolt hole 44b Bolt hole 45a Nut guide groove 45b Nut guide groove 50 Tube material 0 Tubing material 70 Tubing nut holder 80 Tubing material 80a Tubing material 80b Tubing material 81 Through hole 81a Through hole 81b Through hole 90 Bolt 90a Bolt 90b Bolt 100 Tubing material 200 Tubing material 300 Tubing material A Depth B1 Height B2 Height C1 Height C2 Height D Depth Da Depth Db Depth E Insertion Interval F Installation Interval G Guide Interval H Thickness Ha Thickness Hb Thickness Ta Thickness Tb Thickness

Claims (6)

The holder recess into which the nut can be freely inserted is formed of an elastically deformable columnar body formed on at least one end face,
The holder recess is formed shallower than the thickness of the nut,
In a state where a part of the nut is fitted in the holder recess, the columnar body is elastically compressed in the axial direction and inserted into the tube material, and is formed on the inner surface of the tube material so that the nut cannot be rotated. A tube material characterized in that the elastic compression is relaxed at the position of the tube material recess to enter, so that a part of the nut enters the tube material recess non-rotatably and cannot be pulled out. Nut holder.   2. The nut holder for a pipe according to claim 1, wherein the columnar body is any one of urethane foam, polystyrene foam, hard sponge, natural rubber, or synthetic rubber.   A plate member in which the retainer recess has an outer peripheral shape substantially the same as an outer peripheral shape of the columnar body, an inner peripheral shape into which the nut can be fitted, and a thickness smaller than the thickness of the nut, The pipe nut holder according to claim 1, wherein the pipe nut holder is formed by adhering to an end of the pipe member.   The said columnar body is a coil spring, The coil end plate in which the holder recessed part in which the said nut can be freely inserted was installed in the at least one end of the coil spring. Nut holder for pipe material. A nut holder for a pipe according to any one of claims 1 to 4, a nut fitted into an end face of the nut holder for the pipe, a pipe concave section formed on the inner surface and shallower than the thickness of the nut, Have
A part of the nut penetrates into the tube material recess and is held non-rotatable by the tube material nut holder. Reaching the tube material recess from the end, a nut guide groove shallower than the depth of the tube material recess is formed,
The pipe according to claim 5, wherein the nut is movable toward the pipe material recess in a state where the nut enters the nut guide groove.

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