JP3138934U - Piping support bracket - Google Patents

Abstract

A bolt rod is fixed at a position perpendicular to a base plate with a simple structure.
A pipe support fitting has a pair of bolt rods 14 erected on a base plate 12 serving as a support base, a support band having a split structure is fitted into the bolt rod 14, and pipes can be arbitrarily placed by fixing the support band with nuts. Support to the height of. The base plate 12 is deformed by extruding the bottom surface to the front side to form a cavity portion 24 and a screw hole 26 having a burr hole portion 28 protruding into the cavity portion 24. The nut 16 screwed from above with the bolt rod 14 screwed into the screw hole 26 of the base plate 12 is fastened and fixed so as to press against the surface of the base plate.
[Selection] Figure 2

Description

The present invention relates to a pipe support fitting for supporting and fixing a drain pipe, a water pipe and the like in a building.

  Conventionally, in plumbing equipment around water such as toilets, baths, and kitchens installed in building structures such as buildings and condominiums, for example, using pipe support fittings as shown in FIG. Fixing.

  In FIG. 7, the pipe support fitting 100 inserts a pair of support bands 108 for fixing and supporting the bolt rod 104 to two bolts of the base plate 102 with nuts 106 standing upright and fixing the pipe to an arbitrary height. In addition, the pipe can be fixed at an arbitrary height by the band fixing nuts 1110 and 112.

FIG. 8 is a cross-sectional view showing a structure for fixing the bolt rod 104 to the base plate 102. A through hole 114 having a cavity is formed in the base plate 102 by punching from the back surface, and a caulking portion 116 formed integrally with the lower portion of the nut 106 is fitted into the through hole 114, and the bolt rod 104 is screwed into the nut 106. The bolt rod 104 is fixed to the base plate 102 by caulking from the bottom side in the combined state.
JP 2000-009261 A

  However, in such a conventional structure for fixing the bolt rod to the base plate, the direction of the axis of the bolt rod 104 and nut 106 relative to the base plate 102 is relative to the installation surface (bottom surface) of the base plate 102 as shown in FIG. Although it is necessary to perform caulking so as to be vertical, it is difficult to stably process the axes of the bolt rod 104 and the nut 106 to be vertical by fixing by caulking.

  Therefore, as shown by the solid line in FIG. 9, the bolt rod 104 is fixed to the base plate 102 in an inclined state as in the case of the bolt rod 104 a shown by an imaginary line, and is installed on the site with anchor bolts. When fixed, it may be tilted forward or backward as viewed from the side, deteriorating the appearance in field work, and causing a deterioration in quality as a pipe support fitting.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pipe support fitting that allows a bolt rod to be fixed at a position perpendicular to a base plate with a simple structure.

The present invention
A base plate as a support base;
A pair of bolt rods erected on the base plate;
A pair of support bands that insert both ends into a pair of bolt rods and fix and support the pipe at an arbitrary height with a band fixing nut;
In the pipe support fitting with
The bottom of the base plate is pushed and deformed to the front side to form a cavity, and a screw hole having a burr hole projecting into the cavity is formed, and a nut screwed from above with a bolt rod screwed into the screw hole It has a structure in which it is fastened and fixed so as to press against the surface of the base plate.

  The bottom surface of the base plate is deformed to the front side to form a cavity portion, a through hole is formed with a burr hole protruding toward the cavity portion, a screw hole is formed from the through hole toward the burr hole, and the screw hole is formed. A structure is provided in which a nut screwed from above with a bolt rod screwed in is tightened and fixed so as to press against a base surface.

  Here, the bolt rod has a bottom end face formed flat, and the nut is tightened and fixed in a state where the bottom end face is aligned with the bottom face of the base plate.

The base plate has an anchor bolt through hole formed at a position outside the screw hole, and a base portion for forming the anchor bolt through hole is stepped down so as to contact the installation surface.

According to the present invention, a screw rod having a burr hole portion is formed in a cavity formed by deforming by pushing the base plate from the back side to the front side, so that the bolt rod can be reliably screwed even at a thin plate pressure. When a screw hole with a sufficient number of threads is formed and a nut screwed from above with a bolt rod screwed into the screw hole is tightened, the bottom surface of the nut presses the flat surface of the base plate. The rod and nut axes are centered and fixed so that they are oriented vertically to the base plate, and the bolt rod is reliably prevented from being tilted and fixed to the base plate, maintaining high quality as a pipe support bracket. can do.

  FIG. 1 is an explanatory view showing an embodiment of a pipe support fitting according to the present invention. In FIG. 1, the pipe support fitting 10 of the present embodiment has bolt rods 14 standing up at a predetermined interval at two locations on a base plate 12 serving as a support base, and the bolt rods 14 are nuts for fixing rods to the base plate 12. It is fixed with 16 tightenings.

  A pair of support bands 18 are held at an arbitrary height on the bolt rod 14 by attaching nuts 20 and 22. The lower support band 18 is provided with a through hole for the bolt rod 14. For the upper support band 18, for example, the right side is a through hole, but the left side through hole opens laterally and the right side is the center. The support band 18 can be removed from the bolt rod 14 on the left side.

  FIG. 2 is a sectional view showing a bolt rod fixing structure for the base plate of FIG. In FIG. 2, the base plate 12 is deformed by extruding or the like on the bottom surface to form a cavity 24, and a screw hole 26 is formed toward the cavity 24 from the front side of the base plate 12.

  The screw hole 26 has a burr hole portion 28 on the cavity 24 side, and a screw including the burr hole portion 28 is formed. The screw hole 26 having such a burr hole portion 28 forms a screw hole 26 having a depth exceeding the plate thickness of the base plate 12, and the number of screw threads that can be sufficiently screwed and fixed when the bolt rod 14 is screwed together. Is realized.

  An anchor bolt through hole 30 is provided on the outside of the base plate 12 to which the bolt rod 14 is fixed. When the pipe support fitting 10 of the present embodiment is installed on the site, the anchor bolt through hole 30 is used for anchoring. Fix the bolt by driving it into the concrete surface.

  FIG. 3 is an explanatory view showing the processing steps of the base plate in the present embodiment. First, as shown in FIG. 3A, a material plate 32 having a predetermined thickness is prepared. Subsequently, as shown in FIG. 3B, the cavity 24 is formed by extrusion from the back surface of the material plate 32. The depth of the cavity 24 may be approximately the plate thickness.

  Next, as shown in FIG. 3C, a punching hole 34 is formed by punching such as a punch from the front side toward the cavity 24. When the punching hole 34 is processed, punching is performed so that a burr 34a is formed on the cavity 24 side. The burr 34a is located in the cavity 24 and protrudes so as not to exceed the bottom surface of the plate. At the same time, through holes 30 for anchor bolts are formed on the outside of the plate by drilling or the like.

  Next, as shown in FIG. 3D, the screw hole 26 having the burr hole portion 28 is formed by tapping the punched hole 34 or the like. The screw hole 26 has a length obtained by adding the protrusion of the burr 34a to the plate thickness of the plate, and the screw hole 26 having a sufficient number of screw threads can be formed by cutting the screw at this portion.

  FIG. 4 is an explanatory view showing the centering action of the bolt rod by tightening and fixing the nut in this embodiment. 4A shows that the bolt rod 14 is screwed into the screw hole 26 (see FIG. 2) of the base plate 12, and the rod fixing nut 16 is in a state before tightening.

  In this state, as shown in FIG. 3, the bolt rod 14 is fixed to the screw hole 26 in which the screw is cut into the punched hole 34 formed by the punching process. As shown in FIG. 4A, the rod axis 36 of the bolt rod 14 is inclined with respect to the base plate vertical line 38 positioned in a direction perpendicular to the bottom surface of the base plate 12.

  When the nut 16 is screwed to press against the base plate 12 in this state, the lower flat surface 16a of the nut 16 comes into contact with the front flat surface 12a of the base plate 12, and when the nut 16 is further tightened and fixed, FIG. ), The flat surfaces 16a and 12a that are in contact with each other are completely crimped so that the bolt rod 14 tilted as shown in FIG. 4 (A) aligns the rod axis 36 with the base plate vertical line 38. Centering that stands up is performed.

  Therefore, by tightening and fixing the nut 16 to the base plate 12, the bolt rod 14 can be fixed in a standing state so that the rod axis 36 is aligned with the base plate vertical line 38 perpendicular to the bottom surface of the base plate 12 in the centering state.

  At this time, when the nut 16 is tightened, a strong force is applied to the bolt rod 14 in the pulling direction from the base plate 12, but the screw hole 26 formed in the base plate 12 as shown in FIG. Therefore, the screw hole 26 has a sufficient number of screw threads exceeding the plate thickness, and the force in the direction of pulling out the bolt rod 14 from the base plate 12 by tightening the nut 16 for fixing the rod is sufficient. Even if it is added, the fixed state can be reliably maintained without breaking and removing the screw of the screw hole 26.

  Here, the base plate 12 has a thickness of about 2 to 3 mm, and when it is a screw hole in which a screw is cut in a through hole by drilling without the burr hole portion 28 as in the present embodiment, Therefore, when the rod fixing nut 16 is tightened and fixed, the bolt rod 14 breaks out of the thread from the screw hole and cannot be fixed sufficiently.

  On the other hand, in the present embodiment, a screw is cut into a hole formed by punching the hollow portion 24 of the base plate 12 to form a screw hole 26 having a burr hole portion 28, and the number of screw threads of the screw hole 26. By sufficiently ensuring the above, rigidity capable of sufficiently withstanding the pulling force of the bolt rod 14 accompanying the tightening of the nut 16 is secured.

  Further, in the cross-sectional view of FIG. 2, the lower end side of the bolt rod 14 is formed on a flat surface 14a, and when the bolt rod 14 is fixed to the base plate 12, the bolt rod 14 is placed on a reference surface such as a surface plate or the like. Then, the front flat surface 14a is set to coincide with the bottom surface of the base plate 12, and in this state, the rod fixing nut 16 is fastened and fixed to stand in the centering state.

  In this way, the flat surface 14a at the tip of the bolt rod 14 is assembled and fixed at a position coinciding with the bottom surface of the base plate 12, so that when the pipe support fitting 10 of this embodiment is installed on the concrete surface in the field, Since the flat surface 14a below the bolt rod 14 hits the installation surface in addition to the lower end surface surrounding the periphery of the cavity 24 of the base plate 12, the pipe support fitting 10 can be fixed to the installation surface with good balance.

  That is, the load when the pipe is fixed to the pipe support bracket 10 with the support band 18 is applied to the bolt rod 14, but the flat surface 14a at the tip of the bolt rod 14 is in contact with the installation surface, so The load is not directly applied to the base plate 12 but is applied to the installation surface from the bolt rod 14. Therefore, even if the load of the pipe supported by the support band 18 is received, the load is applied to the screw hole 26 of the base plate 12 and the cavity portion 24 side. There will be no deformation that dents.

  FIG. 5 is a cross-sectional view showing a base plate structure of a portion where an anchor bolt through hole is provided in another embodiment of the present invention. In the embodiment of FIG. 2, the hollow portion 24 formed in the base plate 12 is opened and the anchor bolt through hole 30 is provided. However, in the embodiment of FIG. The formation portion is a stepped-down portion 40, and the stepped-down portion 40 allows the bottom surface of the base plate 12 to directly contact the installation surface.

  For this reason, by anchoring the anchor bolt through the anchor bolt through hole 30 formed in the stepped-down portion 40 to the concrete surface or the like of the installation place, the anchor bolt is reliably driven without being affected by the formation of the cavity portion 24. It can be fixed with.

  FIG. 6 is an explanatory view showing another embodiment fixed by a double nut. In FIG. 6, the structure of the pipe support bracket 10 is the same as that of the embodiment of FIG. 1, but a nut 42 is additionally provided to the rod fixing nut 16. After the rod 14 is centered with respect to the base plate 12 and fixed in the vertical direction, the nut 42 is tightened to prevent loosening of the rod fixing nut.

  In the above-described embodiment, a semi-circular band having a two-part structure is taken as an example of the support band 18 supported at an arbitrary height by the bolt rod 14. Thus, it is possible to use a support band having an appropriate shape such as a two-divided shape, for example, a rectangular support band, a support band in which a part of an arc is formed vertically, or a support band having a plurality of pipe support portions.

  Further, the sizes of the base plate 12 and the bolt rod 14 can be appropriately determined as necessary.

  Further, the processing method of the base plate 12 is not limited to that shown in FIG. 3. If the screw hole 26 having the burr hole portion 28 can be formed after forming the cavity 24, an appropriate processing method and processing steps can be taken. .

The present invention includes appropriate modifications that do not impair the object and advantages thereof, and the present invention is not limited by the numerical values shown in the above embodiments.

Explanatory drawing which showed embodiment of the piping support metal fitting by this invention Sectional view showing the bolt rod fixing structure to the base plate of FIG. Explanatory drawing which showed the processing process of the baseplate in this embodiment Explanatory drawing showing the centering action of the bolt rod by tightening and fixing the nut in this embodiment Sectional drawing which showed the baseplate structure of the part which provides the through-hole for anchor bolts in this embodiment Explanatory drawing which showed other embodiment fixed with the double nut. Explanatory drawing showing conventional pipe support fittings Sectional view showing a fixed structure of a bolt rod to a conventional base plate Explanatory drawing showing the inclination of the bolt rod that occurs in the conventional fixing structure

Explanation of symbols

10: Piping support bracket 12: Base plate 14: Bolt rod 16: Rod fixing nut 18: Support bands 20, 22, 42: Nut 24: Cavity 26: Screw hole 28: Burr hole part 30: Anchor bolt through hole 32 : Material plate 34: Punching hole 34 a: Burr 36: Rod axis 38: Base plate vertical line 40: Step-down part

Claims (3)

A base plate as a support base;
A pair of bolt rods erected on the base plate;
A pair of support bands that insert both ends into the pair of bolt rods and fix and support the pipe at an arbitrary height with a band fixing nut;
In the pipe support fitting with
The bottom surface of the base plate is pushed and deformed to the front side to form a cavity, and a screw hole having a burr hole projecting into the cavity is formed, and the bolt rod is screwed into the screw hole from above. A pipe support fitting characterized by having a structure in which a combined nut is fastened and fixed so as to press against a surface of a base plate.
2. The pipe support fitting according to claim 1, wherein the bolt rod has a flat bottom end face, and the nut is fastened and fixed in a state where the bottom end face is aligned with the bottom face of the base plate. Piping support bracket.
  2. The pipe support fitting according to claim 1, wherein the base plate has an anchor bolt through hole formed at a position outside the screw hole, and the base plate portion that forms the anchor bolt through hole is in contact with an installation surface. A pipe support fitting characterized in that it is stepped down.

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