JP2023098520A - nut holder - Google Patents

Abstract

PURPOSE: To provide a nut holder capable of improving work safety or work efficiency when fixing piping.CONSTITUTION: A nut holder 1 can be inserted into a platy coupling portion 5a (holding side coupling portion) of a piping supporting tool 30, and is composed of a nut holding portion 41, a pair of side guide portions 42, 42, and an insertion guide portion 43. The nut holding portion 41 is protrusively provided with a nut fitting portion 45 in which a nut 35 screwed with a bolt 34 is fitted, on a platy body 46. The nut fitting portion 45 is formed with a through-hole 44 that a tip end of the bolt 34 penetrates. The side guide portions 42, 42 are extended in a folded shape to a non-projecting side of the nut fitting portion 45 so that respective side edge portions 36 of a holding side connecting portion 5a is embraced in respective edge portions opposite each other, of peripheral edges of the platy body 46. The insertion guide portion 43 is configured so that the tip end of the holding side coupling portion 5a abuts on an orthogonal edge portion connecting the respective edge portions on which the side guide portions 42, 42 are extended.SELECTED DRAWING: Figure 3

Description

The present invention relates to a nut holder used for supporting various types of piping.

Various types of pipes are used in the construction of air conditioning equipment and sanitary equipment according to their uses and purposes, and can be broadly classified into metal pipes and resin pipes according to their materials.

For example, for water supply pipes, lining steel pipes whose inner surfaces are coated with polyethylene or hard polyvinyl chloride, and resin pipes such as hard polyvinyl chloride pipes and polyethylene pipes are used. A rigid polyvinyl chloride lined steel pipe is used.

Horizontal pipes are suspended from the ceiling or upper floor slabs with suspension bands, and riser pipes are installed inside the building in such a way that vertical bands are used to prevent them from swaying on the wall.

A pipe support band such as a suspension band or a vertical band is made by bending a strip-shaped steel material into an annular shape in the out-of-plane direction so that a pipe can be inserted through a pipe insertion portion, and each end of the pipe insertion portion. In the case of the suspension band, the pair of plate-like connecting portions are connected to the ceiling surface or the lower surface of the upper floor slab. By connecting the lower end of the hanging bolt fixed to the vertical band through a connector called a tanbuckle, the pipe inserted through the pipe insertion part can be suspended from the ceiling or the floor slab of the upper floor. In the case of (1), by connecting the pair of plate-like connecting portions described above to the tips of the brackets extending from the wall surface, the pipe inserted through the pipe insertion portion can be restrained against the wall.

JP 2010-48289 A Japanese Patent Application Laid-Open No. 2005-3014 JP-A-2000-46245

When connecting a pair of plate-like connecting portions, which are components of the pipe support band, to the ends of the tanbuckle or bracket, bolt insertion holes provided in the pair of plate-like connecting portions are formed in the tanbuckle or bracket. After being positioned in the bolt insertion holes, the bolts are inserted through these bolt insertion holes and the nuts are screwed together. (Patent Documents 1, 2 and 3).

On the other hand, pipe support work using pipe support bands, especially suspension work from the ceiling, etc., often involves high place work using stepladders, etc., and from the viewpoint of work safety, work with both hands should be reduced as much as possible. is desirable.

However, in any of the inventions described in the above-mentioned patent documents, the bolt is not fixed in the axial direction of the material. put away.

In addition, since the nut is smaller than the bolt and is difficult to pick up, it is easy to drop during work, and there is a risk of losing the nut when working at height.

As described above, conventionally known inventions can prevent co-rotation of the bolt due to screwing of the nut, but the head of the bolt is held by the other hand so as to prevent the bolt from slipping out of the bolt insertion hole. Not only do you have to hold it down with a grip, but there is also a concern that the small and difficult to pick nut may be dropped, so there is room for improvement in terms of work safety and work efficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a nut holder capable of enhancing work safety and work efficiency when fixing a pipe.

In order to achieve the above object, a nut holder according to the present invention has a pipe insertion portion formed in an annular shape through which a pipe is inserted, and a pipe insertion portion facing each other from opposite ends of the pipe insertion portion. A piping support comprising a pair of plate-like connecting portions extending radially so as to form a pair of plate-like connecting portions, and a bolt insertion hole through which a bolt is inserted is formed in each of the pair of plate-like connecting portions. A nut holder used for a tool, wherein one of the pair of plate-shaped connecting portions is inserted into the holding-side connecting portion as a holding-side connecting portion. ,
a nut holding portion protruding from a nut fitting portion in which a nut to be screwed onto the bolt is fitted and a through hole is formed through which the tip of the bolt passes;
Extending in a folded shape toward the non-projecting side of the nut fitting portion so as to enclose the side edges of the holding side connecting portion at the edges opposite to each other among the peripheral edges of the nut holding portion. a pair of lateral guides,
an insertion guide portion with which the tip end of the holding-side connecting portion abuts against an orthogonal edge portion connecting the respective edges from which the pair of lateral guide portions are extended, among the peripheral edges of the nut holding portion. be.

Further, in the nut holder according to the present invention, the nut fitting portion is composed of a peripheral wall having a hexagonal cross section and a fitting bottom provided with the through hole provided so as to close the tip side of the peripheral wall. It is what I did.

Also, in the nut holder according to the present invention, a plurality of the nut fitting portions are provided along the insertion direction.

In the nut holder according to the present invention, one of the pair of plate-like connecting portions, which are components of the pipe support, is inserted into the holding-side connecting portion as the holding-side connecting portion. A nut fitting portion in which a nut to be screwed with a bolt inserted through the bolt insertion hole formed in the pair of plate-like connecting portions is fitted and a through hole through which the tip of the bolt penetrates is formed. , a pair of side guides extending in a folded shape on the non-projecting side of the nut fitting portion, and an insertion guide portion with which the tip of the holding side connecting portion abuts. The nut is pushed into the nut fitting portion in advance before attaching to the holding side connecting portion of the pipe support when performing pipe fixing work.

Here, the nut is fitted to the nut fitting portion, that is, is held by the nut holding portion in a form that prevents it from coming off. No fear.

Next, the nut holder according to the present invention is attached to the holding side connecting portion of the pipe support.

As the holding-side connecting portion, one of the pair of plate-like connecting portions may be selected as appropriate.

During installation, since the pair of side guide portions are provided in a folded shape so as to embrace the side edges of the holding side connecting portion, the side guides can be moved along the side edges of the holding side connecting portion. The nut holder according to the present invention may be inserted into the holding-side connecting portion while being guided or guided by the guide portion.

Here, the pair of side guide portions not only have a guiding or guiding function in the insertion operation, but also properly guide the nut fitting portion along the axial direction of the piping material to the bolt insertion hole of the holding side connecting portion. It also has a positioning function.

The insertion operation can be performed until the tip of the holding-side connecting portion abuts the insertion guide portion. The guide portion exhibits a function of appropriately positioning the nut fitting portion along the pipe radial direction with respect to the bolt insertion hole of the holding side connecting portion.

Next, when the pipe support is a suspension band, the pipe is inserted through the pipe insertion part and the extension part provided on the tanbuckle is sandwiched between the pair of plate-like connecting parts. After positioning the bolt insertion holes formed in the plate-like connecting portion of the bolt insertion holes formed in the extension portion of the turnbuckle, the bolts are inserted through the bolt insertion holes and the tips of the bolts are fitted with nuts. In parallel with this work, the turnbuckle is connected to the lower end of the hanging bolt attached to the ceiling or upper floor slab to fix the pipe.

Here, since the nut is fitted in the nut fitting portion, that is, it is held in the nut holding portion in such a manner that rotation and extrusion are restricted, the nut does not rotate together with the bolt. No risk of being pushed out.

Since the nut fitting portion is formed with a through hole through which the tip of the bolt penetrates, there is no possibility that the turning operation of the bolt will be hindered in the middle.

On the other hand, when the pipe support is a vertical band, the bracket is fixed to the wall surface, the pipe is inserted through the pipe insertion portion of the vertical band, and the tip of the bracket is sandwiched between a pair of plate-like connecting portions to form a pair of pipes. After positioning the bolt insertion holes formed in the plate-like connecting portion to the bolt insertion holes formed in the tip of the bracket, bolts are inserted through the bolt insertion holes and the tips of the bolts are fitted into the nut fitting portions. By screwing it into the nut, the vibration damping of the piping is completed.

Here, as in the case of the suspension band, the nut is fitted in the nut fitting portion, that is, it is held in the nut holding portion in such a way that rotation and extrusion are restricted. There is no co-rotation and there is no danger of being pushed out.

As in the case of the suspension band, the nut fitting portion is formed with a through hole through which the tip of the bolt penetrates, so there is no possibility that the turning operation of the bolt will be hindered in the middle.

The nut fitting portion may have any specific configuration as long as a nut to be screwed onto the bolt is fitted therein and a through hole is formed through which the tip of the bolt penetrates. A typical example is a fitting bottom provided with the above-mentioned through hole so as to close the tip side of the peripheral wall.

In addition, when the pipe support is a suspension band, the nut fitting part is typically of a single structure due to the relationship with the turnbuckle. It is good also as a structure provided with multiple along the insertion direction so that it may match the number.

FIG. 2 is a layout diagram of the nut holder 1 according to the embodiment. Fig. 3 is a view of a piping support 30 to which the nut holder 1 is applied, wherein (a) is an overall perspective view thereof, and (b) is an overall perspective view depicting only the metal portion with the resin material 21 omitted; The whole perspective view of the nut holder 1. FIG. 1 is a view of a nut holder 1, (a) is a front view, (b) is a rear view, (c) is a cross-sectional view along line AA, and (d) is a cross-sectional view along line BB. The perspective view which showed the usage procedure of the nut holder 1. FIG. FIG. 5 is a layout diagram of a nut holder 61 according to a modification; The whole perspective view of the nut holder 61 which concerns on a modification. It is a view of a nut holder according to a modification, (a) is a front view, (b) is a rear view, (c) is a cross-sectional view along the CC line, and (d) is a cross section along the DD line. Plane.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a nut holder according to the present invention will be described with reference to the accompanying drawings.

The nut holder 1 according to the present embodiment is applied to a piping support 30 as shown in the layout diagram of FIG. One of the plate-like connecting portions, in this embodiment, the plate-like connecting portion 5a located on the front side in FIG.

Here, the pipe support 30 is a so-called suspension band, and includes a suspension bolt (not shown) attached to the ceiling or the upper floor slab at the upper end and a tanbuckle 31 connected to the lower end of the suspension bolt (not shown). As shown in FIG. 2, an annular portion 4 formed by bending a strip-shaped steel material in the out-of-plane direction and into an annular shape, and the annular portion is buried. a pipe insertion portion 3 made of a resin material 21 coated on the annular portion 4; , 5b, and the bolt insertion holes 7, 7 formed in the plate-like connecting portion are positioned to the bolt insertion holes 33, 33 formed in the extension portions 32, 32 of the turnbuckle 31 in FIG. Furthermore, by inserting bolts 34 through these bolt insertion holes and screwing nuts 35 onto the ends of the bolts, the pipes 6 inserted into the inner space of the pipe insertion portion 3 can be attached to the ceiling or upper floor slab. It is designed so that it can be suspended as a horizontal pipe at the bottom.

The annular portion 4 and the plate-like connecting portions 5a and 5b can be configured by conventionally known hanging bands made only of metal. In addition, in the annular portion 4, stiffening ribs for preventing so-called springback appear as ridges on the outer peripheral side. formed.

The pipe support 30 can be manufactured by insert molding using the annular portion 4 as an embedded object (insert) and synthetic resin or elastomer as an injection material. The type of material may be selected as appropriate according to the support load, etc.

As can be seen from FIGS. 3 and 4, the nut holder 1 according to this embodiment comprises a nut holding portion 41, a pair of side guide portions 42, 42 and an insertion guide portion 43. As shown in FIG.

Here, the nut holding portion 41 has a nut fitting portion 45 in which a nut 35 to be screwed onto the bolt 34 is fitted, protruding from a rectangular plate-like main body 46 .

The nut fitting portion 45 is composed of a peripheral wall having a hexagonal cross section and a fitting bottom 47 provided so as to close the distal end side of the peripheral wall. A through hole 44 is formed therethrough.

The side guide portions 42, 42 hold the side edges 36 of the holding side connecting portion 5a at the edges opposite to each other among the peripheral edges of the plate-like main body 46, which is a component of the nut holding portion 41. It extends in a folded shape on the non-protruding side of the nut fitting portion 45 so as to fit therein.

The insertion guide portion 43 is provided at an orthogonal edge connecting the edges of the plate-shaped main body 46, which is a component of the nut holding portion 41, to which the side guide portions 42, 42 extend. It is configured so that the tip of 5a comes into contact with it.

In the nut holder 1 according to the present embodiment, one plate-like connecting portion 5a of the plate-like connecting portions 5a and 5b, which are components of the pipe support 30, is used as a holding side connecting portion and is inserted into the holding side connecting portion. A through-hole into which a nut 35 to be screwed with a bolt 34 inserted through the bolt insertion holes 7, 7 formed in the plate-like connecting portions 5a, 5b is fitted and through which the tip of the bolt 34 penetrates. A nut holding portion 41 having a protruding nut fitting portion 45 formed with 44, side guide portions 42, 42 extending in a folded shape on the non-projecting side of the nut fitting portion 45, and holding It is provided with an insertion guide portion 43 with which the tip of the side connecting portion 5a abuts. The nut 35 is pushed into the portion 45 in advance (Fig. 5(a)).

Here, the nut 35 is fitted to the nut fitting portion 45, that is, is held by the nut holding portion 41 in a form that prevents it from coming off. is not likely to fall out naturally.

Next, as shown in FIG. 5(b), the nut holder 1 is attached to the holding side connecting portion 5a of the piping support 30. Next, as shown in FIG.

In mounting, each side guide portion 42 of the nut holder 1 is provided in a folded shape so as to embrace each side edge portion 36 of the holding side connecting portion 5a. The nut holder 1 can be inserted into the holding side connecting portion 5a while being guided or guided by the side guide portion 42 along the side edge portion 36. As shown in FIG.

Here, the lateral guide portions 42, 42 not only have a guiding or guiding function in the insertion operation, but also the nut fitting portion 45, and thus the nut fitting portion 45, and thus the bolt insertion hole 7 of the holding side connecting portion 5a. It also has the function of properly positioning the nut 35 along the axial direction of the piping material.

The insertion operation may be performed until the tip 37 of the holding-side connecting portion 5a abuts the insertion guide portion 43. Since the insertion guide portion serves as a stopper, the operation completion timing is clear. The insertion guide portion 43 functions to appropriately position the nut fitting portion 45 and the nut 35 fitted therein in the pipe radial direction with respect to the bolt insertion hole 7 of the holding side connecting portion 5a.

Next, the pipe 6 is inserted through the pipe insertion portion 3 of the pipe support 30, and as shown in FIG. 32, 32 are sandwiched, and in this state, the bolt insertion holes 7, 7 formed in the plate-like connecting portions 5a, 5b are positioned in the bolt insertion holes 33, 33 formed in the extension portions 32, 32 of the tanbuckle 31. A bolt 34 is inserted through these bolt insertion holes, and the tip of the bolt is screwed into a nut 35 fitted in a nut fitting portion 45. The piping 6 is fixed by being connected to the lower end of hanging bolts (not shown) attached to the floor slab.

Here, the nut 35 is fitted into the nut fitting portion 45, that is, it is held by the nut holding portion 41 in such a manner that its rotation is restricted. Also, there is no risk of being pushed out by the fitting bottom 47 of the nut fitting portion 45 .

In addition, since the through hole 44 through which the tip of the bolt 34 passes is formed in the nut fitting portion 45, there is no fear that the turning operation of the bolt 34 will be hindered in the middle.

As described above, according to the nut holder 1 according to the present embodiment, the nut 35 is fitted into the nut fitting portion 45 to prevent the nut from coming off. There is no possibility that the nut will fall off naturally.

Further, according to the nut holder 1 according to the present embodiment, the rotation of the nut 5 is restricted by fitting the nut 35 into the nut fitting portion 45 . In addition, the nut 35 is not pushed out by the fitting bottom 47 of the nut fitting portion 45 .

Further, according to the nut holder 1 according to the present embodiment, each side guide portion 42 of the nut holder 1 is provided in a folded shape so as to embrace each side edge portion 36 of the holding side connecting portion 5a. Therefore, the side guide portion exerts a guiding or guiding function in the insertion operation, thus making it possible to easily and reliably attach the nut holder 1 to the holding side connecting portion 5a.

In addition, the side guide portions 42, 42 appropriately position the nut fitting portion 45 and the nut 35 fitted therein with respect to the bolt insertion hole 7 of the holding side connecting portion 5a along the axial direction of the piping material. While exhibiting the function, the insertion guide portion 43 appropriately positions the nut fitting portion 45 and the nut 35 fitted therein with respect to the bolt insertion hole 7 of the holding side connecting portion 5a along the pipe radial direction. The bolt 34 can be securely screwed into the nut 35 in order to exhibit its function.

In this embodiment, the pipe support to which the nut holder according to the present invention is applied is a pipe support 30 which is formed by coating the annular portion 4 of a conventionally known suspension band made only of metal with a resin material 21. However, the pipe support includes a pipe insertion portion formed in an annular shape through which the pipe is inserted, and a pair of pipe insertion portions extending radially from opposite ends of the pipe insertion portion so as to face each other. and a bolt insertion hole through which a bolt is inserted is formed in each of the pair of plate-like connecting portions. It may be applied to a conventionally known suspension band made only of metal, and the opening and closing operation of the pipe insertion part may be performed by providing a cross-sectional defect formed by an opening as shown in FIG. 2(b). It is also possible to apply it to a hanging band that is made by providing a hinge instead of making it with.

Furthermore, the nut holder of the present invention is not limited to the hanging band, and the nut holder of the present invention may be applied to the standing band as a piping support.

The nut holder 61 shown in FIGS. 6 and 7 shows an example in which the nut holder of the present invention is applied to a pipe support 60 which is a standing band. One of the plate-like connecting portions 5a′ and 5b′, in this embodiment, the plate-like connecting portion 5a′ located on the front side in FIG. 6 is used as the holding-side connecting portion. It is designed to be plugged into

Here, the piping support 60 is connected to the tip of a bracket 71 extending from the wall surface, so that the piping 6 can be fixed to the wall, and the strip-shaped steel material is curved in the out-of-plane direction and into an annular shape. and a pipe insertion portion 3' made of a resin material 21 coated on the annular portion 4' so that the annular portion 4' is embedded, and a pipe insertion portion 3' so as to face each other from the opposite end portion of the annular portion 4' and The plate-like connecting portions 5a' and 5b' extend in the radial direction, respectively. By positioning in two sets of bolt insertion holes 73, 73 formed at the tip, inserting bolts 34, 34 into the two sets of bolt insertion holes, and screwing nuts 35 to the tips of the bolts, The pipe 6 inserted into the inner space of the pipe insertion portion 3' can be restrained against the wall.

The annular portion 4' and the plate-like connecting portions 5a' and 5b' can be formed of conventionally known standing bands made only of metal. In addition, in the annular portion 4', stiffening ribs for preventing so-called springback appear as ridges on the outer peripheral side. A coating is formed.

The pipe support 60 can be manufactured by insert molding using a synthetic resin or elastomer as an injection material, with the annular portion 4′ as an embedded material (insert). The type of material may be appropriately selected according to the temperature, supporting load, and the like.

Similar to the nut holder 1 described above, the nut holder 61 according to this modified example also includes a nut holding portion 41', a pair of side guide portions 42', 42', and an insertion guide portion 43'. The nut holding portion 41' of the modified example has two nut fitting portions 45 in which the nuts 35 to be screwed onto the bolts 34 are fitted. In addition, a through hole 44 through which the tip of the bolt 34 passes is formed in the fitting bottom 47 of the nut fitting portion.

The side guide portions 42', 42' are provided on opposite sides of the peripheral edge of the plate-shaped main body 46', which is a component of the nut holding portion 41'. It extends in a folded shape on the non-projecting side of the nut fitting portion 45 so as to embrace the edge portion 36'.

The insertion guide portion 43' is an orthogonal edge portion that connects each edge portion of the plate-like main body 46', which is a component of the nut holding portion 41', to which the side guide portions 42', 42' extend. The end of the holding-side connecting portion 5a' is configured to abut against.

In the following, corresponding to the fact that there are two sets of bolt insertion holes 7, 7 formed in the plate-like connecting portions 5a', 5b' of the piping support 60, the nut fitting portion 45 is inserted two times along the insertion direction. The nut holder 61 according to this modification is the same as the nut holder 1 described above, except for the point that the nut holder 61 protrudes.

Further, in this embodiment, the nut fitting portion of the present invention is configured by a peripheral wall having a hexagonal cross section and a fitting bottom 47 provided so as to close the tip side of the peripheral wall, and the fitting bottom Although the through hole 44 through which the tip of the bolt 34 penetrates is formed in the nut fitting portion, it is sufficient if the through hole through which the nut is fitted and the tip of the bolt penetrates is formed. Instead of the peripheral wall having a hexagonal surface, as shown in FIG. 8, a peripheral wall having a cylindrical outer peripheral surface and a hexagonal inner peripheral surface may be used.

Also, although not specifically mentioned in the present embodiment, it is necessary to ensure that a space for inserting the plate-like connecting portion 5a between the side guide portions 42, 42 and the plate-like main body 46 is formed. Also, as shown in FIG. 8, the plate-like body 46 may be provided with openings 81, 81 having substantially the same shape as the side guide portions 42, 42. As shown in FIG.

1 nut holder 3 pipe insertion portion 5a plate-like connecting portion 5b plate-like connecting portion (holding side connecting portion)
6 piping 7 bolt insertion hole 30 piping support (hanging band)
34 bolt 35 nut 41 nut holding portions 42, 42 side guide portion 43 insertion guide portion 44 through hole 45 nut fitting portion 47 fitting bottom

Claims (3)

Consists of a pipe insertion portion formed in an annular shape through which a pipe is inserted, and a pair of plate-like connecting portions extending radially from opposite ends of the pipe insertion portion so as to face each other. In addition, a nut holder used in a pipe support fixture in which bolt insertion holes through which bolts are inserted are formed in the pair of plate-like connecting portions, wherein either one of the pair of plate-like connecting portions is provided. In a nut holder that is adapted to be inserted into the holding-side connecting portion as a holding-side connecting portion, the plate-like connecting portion of
a nut holding portion protruding from a nut fitting portion in which a nut to be screwed onto the bolt is fitted and a through hole is formed through which the tip of the bolt passes;
Extending in a folded shape toward the non-projecting side of the nut fitting portion so as to enclose the side edges of the holding side connecting portion at the edges opposite to each other among the peripheral edges of the nut holding portion. a pair of lateral guides,
an insertion guide portion that abuts the tip end of the holding-side connecting portion on an orthogonal edge portion that connects the respective edges from which the pair of lateral guide portions are extended, among the peripheral edges of the nut holding portion. Characterized nut holder. 2. The nut holder according to claim 1, wherein said nut fitting portion is composed of a peripheral wall having a hexagonal cross section and a fitting bottom provided with said through-hole so as to close the tip side of said peripheral wall. 3. The nut holder according to claim 1, wherein a plurality of said nut fitting portions are provided along the insertion direction.

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