JPH08284305A - Hanger bolt supporter - Google Patents

Abstract

PURPOSE: To expedite installation work by a method wherein a bolt is prepared and a fixed holding piece is attached to its head while a movable holding piece is attached to its threaded part and a hanger bolt attaching member is provided at the middle part thereof. CONSTITUTION: A hanger bolt supporter 1 having a bolt 2 in a length slightly longer than the width on the lower end of a deck plate is attached to the deck plate. Then, a nut 7 is screwed onto a threaded part 2c of the bolt 2 and a movable clamping piece 5 is put thereon through its notch 6 while a fixed holding piece 3 is put on the head 2a of the bolt with a fitting claw 10 thereof fitted into a fitting groove of the deck plate. Furthermore, a fitting claw 11 of the movable holding piece 5 is fitted into the fitting groove of the deck plate and fixed with a nut. A hanger bolt attaching member 4 is provided at the middle part 2b of the bolt 2, and a hanger bolt is fixed therewith. Therefore, the hanger bolt can be held firmly to any of structural members of a building only by changing dimensions of the bolt and shapes of holding parts of both of the holding pieces.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging bolt support attached to a building structural material such as an H-shaped steel or a deck plate to support the hanging bolt.

[0002]

2. Description of the Related Art Conventionally, as a suspension bolt support of this type, for example, one shown in FIG. 5 has been known (JP-A-6-212724). This hanging bolt support 5
1 is a holding portion 5 of an inclined side having a notched concave portion 54 on the inner side.
The two side plates 53, which have become 3a, and the side plates 53, 53 are connected to each other, a long hole 56 is formed in the middle, and a semicircular hole 57 is formed at the tip inclined upward.
A pair of holding members 52, each having a bottom plate 55,
52, a bolt hole 59 in the center, and each holding member 52 at both ends.
Connecting members 58 each having a locking protrusion 60 that fits into the elongated hole 56 of the hexagonal hole 56 from below, and the semicircular holes 57 and 57 and the connecting member 58 that face each other with the opposite sides of the hexagon being sandwiched by the side plates 53 and 53. Bolt 61 inserted from above into the bolt hole 59 of
And a nut 62 screwed into the screw portion 61a of the bolt 61 protruding downward from the bolt hole 59.

The hanging bolt support 51 is used as follows. First, for example, the locking projections 6 of the connecting member 58 are attached to both ends of the rib at the lower end of the H-shaped steel horizontally installed on the ceiling.
The cutout recesses 54 of the pair of holding members 52, which are connected by 0 and 60 and through which the bolt 61 is inserted, are fitted into each other. continue,
The nut 62 is screwed into the lower end of the screw portion 61a of the bolt 61 protruding from the bolt hole 59 of the connecting member 58 and screwed. Then, the bolt 61, whose head is sandwiched by the side plates 53, 53 and prevented from rotating, pushes down the tip of the bottom plate 7 inclined upward above the peripheral edge of the semi-circular hole 57, thereby holding the sandwiching members 52, 52. Is rotated in a direction in which the opposing gripping portions 53a, 53a are closed, and the notch recesses 54, 54 sandwich both ends of the rib of the H-shaped steel from both sides. When the nut 62 is fully tightened, the opposite end of the bottom plate 7 and the connecting member 58 are tightly fitted between the nut 62 and the head of the bolt 61, and the cutout recesses 54, 54 are tightly fitted to both sides of the rib from the outside. It is firmly fixed in this state, and the attachment of the bolt support tool 51 is completed. Next, the upper half of the suspension bolt 63 is screwed into the lower half of the nut 62, and the ceiling underlaying material for attaching the ceiling board, for example, is fixed to the lower end of the suspension bolt 63. In this way, the hanging bolt support 51 reduces the number of parts, thereby reducing the manufacturing cost, and the assembly work is facilitated, so that the mounting work on site can be speeded up.

[0004]

However, in the above-described conventional hanging bolt support tool 51, the entire length of both holding members 52 connected by the connecting member 58 and the opposing notch recesses 54.
Since the interval between the two is constant and the shape of the concave portion 54 is constant, the H-shaped steel having wide ribs and the cross-sectional shape of the end portion are notched.
You cannot hold building structures that do not conform to 4. Further, the shape of each holding member 52 is two inclined sides 53a having a notch recess 54, or a semicircular hole 5 at an end inclined upward.
7 and a bottom plate 58 having an elongated hole 56, which is complicated and requires a lot of work. Therefore, in order to use it extensively for building structural materials of various sizes and shapes, many holding members 5
2 must be prepared, and there is a problem that the work at the site is complicated and time-consuming due to the replacement of the holding member, and the cost of the supporting tool is rather increased. Also,
Since the sandwiching members 52, 52 have a structure in which the ribs and the like are sandwiched from the outside by rotating in the closing direction by tightening the bolt 61 and the nut 62, the sandwiching members 52, 52 are arranged across the recess of the deck plate that opens downward. Since it cannot be installed by fitting it to the grooves on both sides of the recess by outward extension, the applicable range is limited, and the tightening force of the bolts and nuts only indirectly acts on the ribs etc. Since it does not, there is a problem in that it cannot be attached firmly enough.

Therefore, an object of the present invention is to widely and easily apply to building structural materials of various sizes and shapes with a simple and inexpensive structure by using bolts arranged so as to cross the mounting location, An object of the present invention is to provide a suspension bolt support tool that can obtain a strong grip only by tightening a nut.

[0006]

In order to achieve the above object, the hanging bolt support of the present invention has a bolt and a notch that engages with the head of the bolt, and has an outer portion on the shaft of the bolt. A fixed side holding piece fitted and attached by caulking, a hanging bolt mounting member having an internal thread that is externally fitted to the intermediate shaft part of the bolt, and has a female screw threaded to the upper end of the hanging bolt, and the fixed side holding piece. The movable side holding piece having the same size and shape and loosely fitted in the threaded portion of the bolt and the threaded portion of the bolt are screwed together and arranged in the notch of the movable side holding piece. It is characterized in that it is provided with a nut for adjusting the movable side holding piece by advancing and retracting and positioning it. Further, the hanging bolt support may be provided with a locking nut that is screwed to the bolt and presses the movable holding piece toward the nut.

[0007]

First, it is assumed that the fixed-side holding piece and the movable-side holding piece of the hanging bolt support are relatively moved so as to approach each other and the building structure material is sandwiched from both outsides. In this case, turn the nut screwed into the threaded part of the bolt in the loosening direction, fit the nut into the notch, and hold the movable side holding piece loosely fitted in the threaded part above the fixed side of the bolt head. It is moved in the direction away from the piece, and the inner distance between the two holding pieces is made larger than the width of the building structure material to be sandwiched. Next, engage the notch with the bolt head, and engage the inner edge of the fixed side holding piece externally fitted on the bolt shaft so as to prevent relative rotation and relative movement by caulking with one end of the building structure material. In this state, the nut is turned in the tightening direction to move the movable-side holding piece through the notch in a direction approaching the fixed-side holding piece, that is, the other end of the building structure material. As a result, the inner edge of the movable side holding piece engages with the other end of the building structure material, and when the nut is fully tightened, the building structure material is firmly sandwiched between the fixed side and movable side holding pieces. Then, the attachment of the hanging bolt support to the building structure material is completed. Further, the upper end of the hanging bolt which serves as a fixing means for the ceiling base material and the like is screwed into the female screw of the hanging bolt mounting member externally fitted to the intermediate shaft portion of the bolt of the hanging bolt support.

On the other hand, it is assumed that the fixed-side holding piece and the movable-side holding piece of the hanging bolt support are relatively moved so as to be separated from each other and press the building structural material from both insides.
In this case, turn the nut that is screwed into the threaded portion of the bolt in the tightening direction and move the movable-side holding piece through the notch in the direction that approaches the fixed-side holding piece of the bolt head. The opening width of the building structure should be smaller than the opening width. Next, in a state in which the outer edge of the fixed side holding piece externally fitted to the bolt so as to be unable to rotate and move relatively by caulking is engaged with one groove in the opening of the building structure material, the nut is loosened in the loosening direction. By turning, the movable-side holding piece is moved through the notch in a direction in which the movable-side holding piece is separated from the fixed-side holding piece, that is, in a direction toward the other side groove in the opening of the building structure material. As a result, the outer edge of the movable-side holding piece engages with the other side groove in the opening of the building structure material, and when the nut is fully turned in the loosening direction, both the fixed side and the movable side of the building structure material are held. The piece is firmly inserted and the mounting of the suspension bolt support to the building structure is completed. Further, the upper end of the suspension bolt, which serves as a fixing means for the ceiling base material or the like, is screwed onto the female screw of the suspension bolt mounting member fitted onto the intermediate shaft portion of the bolt of the suspension bolt supporter.

In the case where a lock nut for pressing the movable holding piece toward the nut is screwed onto the bolt,
After mounting the suspension bolt support, tighten the locking nut by turning it closer to the nut. Then, the movable-side holding piece is sandwiched between the two nuts and firmly fixed, so that the hanging bolt support tool attached cannot be easily loosened even if the building structural material and the hanging bolt vibrate.

[0010]

The present invention will be described below in more detail with reference to the illustrated embodiments. FIG. 1 is a perspective view showing an embodiment of the hanging bolt support tool of the present invention. This hanging bolt support 1 includes a bolt 2 having a length around the width of the building structure material to be attached.
And a fixed side holding piece 3 that has a notch 6 that engages with the head portion 2a of the bolt 2 and that is externally fitted to a nearby shaft portion 2b and attached by caulking, and an intermediate shaft portion 2b of the bolt 2. Hanging bolt mounting member 4 fitted by being fitted onto the
A movable side holding piece 5 which has a notch 6 and is loosely fitted in the threaded portion 2c of the bolt 2, and a movable side holding piece which is screwed into the threaded portion 2c and is arranged in the notch 6. It is composed of a nut 7 for adjusting the forward / backward movement of the nut 5 for positioning, and a locking nut 8 screwed into the screw portion 2c to press the movable holding piece 5 toward the nut 7.

As shown in FIGS. 3 (A) and 3 (B), the fixed side holding piece 3 is made of, for example, a zinc-plated steel plate having a thickness of 1.6 mm and is attached to the shaft portion 2b of the bolt 2 having a M10 screw, for example. The wound cylinder portion 3a, the piece portion 3b in which the above steel plates are stacked so as to vertically project from the cylinder portion 3a to the bolt 2, and the bolt 2
Notch 6 that engages with the hexagonal head 2a of the
And a fitting claw 10 which projects from the end of the inner edge of the end portion at a tip angle of 60 ° and fits into a mounting groove of a building structure material described later,
Three caulking portions 9 are formed on the inner edge of the cylindrical portion 3a at intervals of 120 ° in the circumferential direction, and are fixed to the shaft portion of the bolt 2 so as not to rotate and move relative to each other. In addition, the caulking portion 9
Has a length and a width of, for example, 3 mm and 1 mm, respectively.
The notch angle shown in Fig. 3 is, for example, 20 °, and the opening degree of the V notch shown in Fig. 3B is, for example, 90 °. On the other hand, the movable side holding piece 5 has the same size and shape as the fixed side holding piece 3 as shown in FIGS. 3 (C) and (D), and the steel plate is attached to the screw portion 2c of the bolt. The tubular portion 5a wound with a gap,
The piece 5b in which the steel plates are stacked so as to vertically project from the cylinder 5a to the bolt, and the above-mentioned notch formed by cutting the center of the cylinder 5a and the piece 5b following the center into a rectangular shape. 6 and a fitting claw 11 which projects from the end of the inner edge of the piece 5b at a tip angle of 60 ° and fits in the same mounting groove as described above.

As shown in FIG. 4, the hanging bolt mounting member 4 is formed by bending a steel plate having a thickness of 2.0 mm into a hat shape, and adjoining the collar portion 4a to the upper portions of the vertical side portions 4b, 4b. The circular holes 12 and 12 for inserting the shaft portion 2b of the bolt, the rectangular holes 13 and 13 adjacent to the bottom portion 4c in the lower portion, and the upper end of the hanging bolt 63 (see FIG. 2) are passed through the bottom portion 4c. 14, the opposite hexagonal apex portions 15a, 15a are press-fitted into the square holes 13, 13 and sandwiched by the both side portions 4b to fix the nut 15 on the bottom portion 4c.
5 is a female screw threaded to the upper end of the hanging bolt 63. In the hanging bolt support 1, the fixed side holding piece 3 is first fixed to the head 2a side by caulking to the bolt 2 which is slightly longer than the width of the mounting portion of the building structure material, and then the intermediate shaft 2
The hanging bolt mounting member 4 is inserted into b, and the movable side holding piece 5 in which the nut 7 is fitted into the notch 6 in the threaded portion 2c is externally fitted while the nut is screwed into the threaded portion, and finally the threaded portion. Two
It is assembled by screwing a lock nut 8 on the end of c.

The hanging bolt support 1 has a fitting claw 1
0 and 11 project from the inner edges of the two holding pieces 3 and 5 so as to face each other, and the two holding pieces 3 and 5 relatively move so as to approach each other and the fitting claws 10 and 11 are used to move the building structure material from both outsides. It is of a type that is sandwiched. However, the bolt 2 is made slightly shorter than the opening width of the building structure material, and the two holding pieces 3 and 5 having the same size and shape are fitted in the opposite directions of the fitting claws 10 and 11, that is, outward to the outer edge. If it is attached to the bolt 2, turn the nut 7 in the loosening direction,
By relatively moving the fittings so that they are separated from each other,
It is also possible to adopt a type in which the hanging bolt support 1 is attached by pressing the openings from both sides with 0 and 11.

The support of the suspension bolt using the suspension bolt support 1 having the above structure will be described below with reference to FIG. Using the hanging bolt support 1 having the bolt 2 slightly longer than the width of the lower end portion 20b of the protruding trapezoidal section of the deck plate 20 as a building structure material laid on the ceiling, loosen the nut 7 screwed into the screw portion 2c. By turning the movable side holding piece 5 through the notch 6 into which the nut 7 fits so that the gap between the movable side holding piece 5 and the fixed side holding piece 3 of the bolt head 2a becomes wider than the width of the lower end portion 20b. Keep them separated. Next, the caulking part 9
With the fitting claw 10 on the inner edge of the fixed side holding piece 3 that is prevented from relative rotation and relative movement by the fitting groove 20a at one lower end of the deck plate 20 to hold the bolt 2, the nut 7 Is rotated in the tightening direction to move the movable side holding piece 5 in a direction to approach the fixed side holding piece 3, that is, the other end of the deck plate 20.

As a result, the fitting claw 11 on the inner edge of the movable side holding piece 5 is fitted to the fitting groove 2 on the other lower end of the deck plate 20.
0a and tighten the nut 7 fully, the deck plate 20 is firmly clamped by the fitting claws 10 and 11 from both sides, and when the locking nut 8 is tightened at the end, the hanging bolt to the deck plate 20 is tightened. The attachment of the support tool 1 is completed. Then, the upper end of the suspension bolt 63 is screwed onto the nut 15 of the suspension bolt mounting member 4 inserted through the intermediate shaft portion 2b of the bolt 2 of the suspension bolt support 1, and the nut 16 is tightened from below to suspend the suspension bolt 63. Is firmly fixed to the mounting member 4. In this way, the ceiling bolts, which are suspended from the deck plate 20 and supported by the hanging bolts 64,
Various pipes, air conditioning and electrical equipment are fixed. Although not shown in FIG. 2, a spacer may be sandwiched between the collar portion 4a of the hanging bolt mounting member 4 and the lower end portion 20b of the deck plate in order to prevent the hanging bolt 64 from swinging. Further, when a large number of parallel diagonal through grooves are provided on the inclined side surface of the deck plate 20 instead of the fitting groove 20a, the fitting claws 10 and 11 may be inserted into the through grooves. Further, the lower nut 16 may be omitted, and the hanging bolt 63 may be screwed in until it comes into contact with the bolt 2 to prevent loosening.

If the building structure material is a horizontal H-shaped steel different from the deck plate of the above-mentioned embodiment, it is necessary to attach a hanging bolt support to the rib at the lower end of the H-shaped steel. Instead of the fitting claws 10 and 11 of 3, 5, it is possible to provide long grooves that are fitted on the ribs on the both pieces 3b and 5b. Further, a hanging bolt support is attached by crossing a bolt on the opening end of the bayonet trapezoidal cross section of the deck plate 20 (between the fitting groove 20a on the right side in FIG. 2 and a fitting groove (not shown) facing the right side). In this case, the bolt 2 is made slightly shorter than the width of the opening end, and the two holding pieces 3 and 5 having the same size and shape are arranged so that the fitting claws face outward, contrary to the cases 10 and 11 of the embodiment. This can be handled by a hanging bolt support attached to the bolt 2. That is, the nut 7 of this support
Is rotated in the loosening direction to move the two holding pieces 3 and 5 relative to each other so that they are separated from each other, and the fitting grooves 20a and 20a on both sides of the opening end are pressed from the inside by the two fitting claws facing outward. The support can be firmly fixed to the deck plate 20.

As described above, the hanging bolt support 1 of the present invention
Is compatible with various sizes of mounting points by simply selecting a commercially available bolt 2 with a length that matches the width of the mounting point of the building structure material, and it has a simple structure and holds the fixed side and movable side of the same shape. By changing the shape of the fitting claws of the pieces 3 and 5 to the fitting groove, etc. and changing the protruding direction to the outside, it is possible to correspond to both mounting points of unevenness of various shapes and a wide range with low manufacturing cost. It can be applied to building structural materials and can be installed quickly on site. In addition, since the mounting portion is pressed from both outsides or both insides by the movable side holding piece 5 that moves forward and backward with the nut, the tightening force of the nut can be directly applied to obtain a strong grip.

In the above-mentioned embodiment, since the locking nut 8 for pressing the movable holding piece 5 toward the nut 7 is used, even if the building structural material such as the deck plate 20 is vibrated, the movable holding piece 5 is pressed. Can be prevented from loosening, and more reliable mounting can be realized. In addition, the hanging bolt mounting member 4
Since the female screw is the nut 15 that is press-fitted into the square hole 13, the work such as welding can be omitted, and the suspension bolt can be firmly fixed while reducing the manufacturing cost. still,
In the above embodiment, the fitting claws 10 and 11 are provided only on the inner edges of the two holding pieces 3 and 5, but in addition to this, similar fitting claws may be provided on the outer edges as well. Two hanging bolt supports can be used for both concave and convex parts of building structure. Also, these fitting claws can be used as fitting grooves.

[0019]

As is apparent from the above description, the hanging bolt supporting member of the present invention engages with the bolt and the notch on the head of the bolt to prevent relative rotation / relative movement on the shaft portion of the bolt. The fixed-side holding piece that is externally fitted and attached by caulking, the hanging-bolt mounting member that has a female screw that is screwed onto the upper end of the hanging bolt and that is fitted onto the intermediate shaft portion of the bolt, and the fixed-side holding piece The movable-side holding piece having the dimensions and shape described above that fits loosely into the threaded portion of the bolt, and the movable-side holding piece that is screwed into the threaded portion of the bolt and is located in the above-mentioned notch and adjusts the movable-side holding piece forward and backward for positioning Since it is equipped with a nut, it can be easily and inexpensively applied to a wide range of building structures of various sizes simply by changing the dimensions of the bolts and the shape of the holding parts of both holding pieces. Can be firmly supported. In addition, if a locking nut is added to the hanging bolt support, the locking nut pushes the movable side holding piece toward the nut to prevent loosening, and even in a building structural material that receives vibration, it is possible to secure the hanging bolt securely. Can be supported.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a hanging bolt support tool of the present invention.

FIG. 2 is a front view showing a usage example of the above embodiment.

3A and 3B are a front view and a side view showing details of a fixed-side holding piece and a movable-side holding piece of the embodiment.

FIG. 4 is a front view, a side view, and a plan view showing details of the hanging bolt attachment member of the above-described embodiment.

FIG. 5 is a perspective view of a conventional hanging bolt support tool.

[Explanation of symbols]

1 ... Hanging bolt support, 2 ... Bolt, 2a ... Head, 2b ...
Shaft part, 2c ... Screw part, 3 ... Fixed side holding piece, 4 ... Hanging bolt mounting member, 5 ... Movable side holding piece, 6 ... Notch, 7 ... Nut, 8 ... Locking nut, 9 ... Crimping section, 10 , 11
… Mating claws, 15… Nuts, 20… Deck plates, 20
a ... Fitting groove, 63 ... Hanging bolt.

Claims (2)

[Claims] 1. A hanging bolt support attached to a building structure for supporting a hanging bolt, comprising: a bolt; a cutout that engages with a head of the bolt; and an external fitting on a shaft portion of the bolt. And a fixed-side holding piece that is attached by caulking, and a hanging bolt mounting member that has an internal thread that is externally fitted to the intermediate shaft portion of the bolt and that engages with the upper end of the hanging bolt, and the fixed-side holding piece. And a movable holding piece having a size and shape that is loosely fitted to the threaded portion of the bolt, and is screwed into the threaded portion of the bolt, and is arranged in the notch of the movable holding piece to move the movable piece. A hanging bolt supporter comprising a nut for adjusting a side holding piece by advancing and retracting and positioning the side holding piece. 2. The hanging bolt support device according to claim 1, further comprising a locking nut that is screwed to the bolt and presses the movable holding piece toward the nut.