JP2000046244A - Piping band device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for the work of preventing slip-off of a bolt by a nut through a method generally carried out to perform cantilever holding of a piping band by a turn buckle and to facilitate a piping work. SOLUTION: Bolt slip-off preventing lock edges 6 each having a thinned tip, positioned ahead of the screw groove of a bolt 15, is formed at the edge parts of a bolt holes 5, formed in a pair of the cantilever support pieces 4 positioned facing each other of a turn buckle 1, by a squeezing work through the working of a press. By hooking and locking a bolt 15 inserting through both the suspension support piece 4 of the turn buckle 1 and one fastening piece 12 of a piping band 7, cantilever holding of the piping band 7 through the bolt 15 is practicable without using a nut 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping band device used for installing a piping pipe in a building with a tambuckle and a piping band.

[0002]

2. Description of the Related Art A piping band apparatus used for piping a pipe of this type is provided with a rotating nut for screwing a suspension bolt at an upper end and a pair of hanging support pieces each having a bolt hole formed at a lower end thereof. A piping band including a buckle, a pair of curved band pieces hingedly connected at a center position in a bending direction, and a pair of opposed fastening pieces raised at the upper end of the curved band piece and each having a bolt hole. And a pair of opposed fastening members of the piping band are superimposed on the pair of opposed hanging support pieces of the tan buckle from the outside in a sandwich shape, and the bolt holes respectively penetrated therethrough A bolt is inserted from one fastening piece side and a nut is screwed onto the bolt on the other fastening piece side to fasten the piping band to the tambuckle. To have.

[0003] The piping by this is provided, for example, by screwing a tan buckle through a rotary nut on a large number of suspension bolts suspended from a ceiling slab and installed at a predetermined interval. The above-mentioned fastening piece of one curved band piece in the piping band opened so as to have a three-sided shape by the hinge is superimposed, and a pair of opposed hanging supports of the fastening piece and the tambuckle from the fastening piece side. A bolt is inserted into each bolt hole of the piece. At this time, each bolt hole is larger in diameter than the shaft diameter of the bolt, and the bolt may fall off. By screwing a nut on a bolt and temporarily fixing (it may be called temporary tightening), the above open piping band can be held cantilevered on a tambuckle. After that, the piping pipes are held by hand, and sequentially come into contact with one of the curved band pieces of each piping band in a state of contact with the pipe pipes. And the other curved band piece is rotated and closed so as to fit the piping band, the fastening piece is overlapped on the outside of the other hanging support piece of the tambuckle, and the bolt is connected to the fastening piece. After being inserted into the bolt hole, a nut is screwed on the bolt again to perform the fastening and fixing by the final stop.

[0004]

However, in this case, however,
While it is necessary to screw a nut on the bolt and temporarily fix it in order to hold the piping band with the tan buckle, while holding the piping pipe, the nut is removed from the bolt and screwed again. In addition, since it is necessary to perform the final stop, the piping work becomes complicated, and since this work is an upward work at a high place where the pipes are installed, it is necessary to remove the bolts or temporarily hold them. In addition, nuts are often dropped and lost, which impairs work efficiency.

Further, in general, a steel pipe is often used for the pipe, and in this case, the weight of the pipe is increased, and the pipe including the removal and the screwing of the nut is held by a single worker holding the pipe. It is extremely difficult to operate the band at the same time. For this reason, the pipe work is generally performed by two people: a worker who holds the pipe and holds it, and a worker who removes the nut and operates the pipe band. This is also a factor that impairs the efficiency of work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first object of the present invention is to provide a tub buckle for cantilever holding of a pipe band without temporarily fixing the nut. In this way, the provision of a piping band device which can omit the work of temporarily fixing and removing the nut and eliminate the complexity of the piping work as much as possible and ensure the efficiency thereof is provided. In addition to this,
An object of the present invention is to provide a piping band device that eliminates the need for an operator holding the above-mentioned piping pipe and allows a single operator to perform the piping work, thereby further improving the efficiency.

[0007]

In accordance with the first object of the present invention, the present invention provides a method for temporarily holding a pipe band with respect to a tan buckle, wherein the pipe band is inserted into bolt holes of one of the fastening pieces and both of the hanging support pieces. By installing a bolt retaining means between the bolt and the hanging support of the tambuckle,
It is possible to maintain the state of temporarily holding and holding the above-mentioned piping band without temporarily fixing the nut, and
The invention is characterized in that the buckle is provided with a bolt retaining edge which enters a bolt groove at the edge of the bolt hole of the tan buckle and hooks and holds the bolt, that is, the invention according to claim 1 is suspended at the upper end. A tan buckle having a rotating nut for bolt screwing, a pair of opposed hanging support pieces each having a bolt hole, and a pair of curved band pieces hinged at a middle position in the bending direction, and an upper end of the curved band piece; And a pair of pipes each having a fastening piece having a bolt hole, respectively, and a pair of opposed holding support pieces of the tan buckle having a pair of opposed fastening pieces of the piping band on the outside. And a bolt is inserted into these bolt holes from one fastening piece side, and a nut is screwed onto the bolt on the other fastening piece side. A pipe band device for tightening and fixing a pipe band to a tan buckle, wherein at least one of a pair of opposed tan buckles of the tan buckle has a bolt hole thinner than a bolt screw groove at an edge of a bolt hole. A piping band device characterized by forming a bolt retaining edge for retaining a bolt inserted therethrough in a bolt hole, wherein the invention according to claim 2 is added to the above, and the bolt is retained. To make this easier and more reliable,
2. The piping band device according to claim 1, wherein the locking edge of the buckle for retaining the bolt is formed at an edge of a bolt hole in each of the pair of opposed hanging support pieces. In addition to the above, the inventions according to the third and fourth aspects also show the preferred embodiment of the installation of the locking lip for retaining the bolt. The pipe band device according to claim 1 or 2, characterized in that the pipe band device is formed partially below the edge of the bolt hole in the hanging support piece. 4. The bolt retaining edge of the buckle is formed by reducing the thickness of the edge of the bolt hole in the hanging support piece by crushing of a press. Piping band device And along said second object according to claim 5
The invention described in (1) is such that, in a state in which the piping band is temporarily held and held by the buckle, the piping pipe can be placed and held on the curved band piece having the fastening piece on the bolt insertion side of the piping band. That is, the hinge connection at the intermediate position in the bending direction of the pair of curved band pieces of the pipe band is deviated to one of the pair of curved band pieces, and the pipe pipe is held on the longer curved band piece. The pipe band device according to claim 1, 2, 3, or 4, wherein the pipe band device is a means for solving each of the problems as a gist of the invention.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings, in which A is a piping band device, B is a piping pipe, and 1 is a metal band of the piping band device A, such as steel. The buckle 7 is a piping band also made of metal, for example, steel, and the tan buckle 1 has a rotating nut 2 for screwing a hanging bolt 17 at the upper end and a pair of opposed hanging bolts 5 at the lower end. The supporting band 4 is provided, and the piping band 7 is composed of a pair of curved band pieces 8 and 9 connected to a hinge 11 at an intermediate position in the bending direction and a pair of opposed raised up at the upper ends of the curved band pieces 8 and 9. The buckle 1 is provided with a pair of fastening pieces 12 each having a bolt hole 13. Bolt 15 from one of the fastening piece 12 side in these the bolt holes 5 and 13 as well as polymerization Jo
Is inserted, and a nut 16 is screwed onto the bolt 15 on the other fastening piece 12 side, so that the piping band 7 is fastened and fixed to the tambuckle 1.

At this time, one or both of the opposing pair in the tambuckle 1, in this example, both ends of the bolt holes 5 of the hanging support pieces 4 are made thinner than the thread groove of the bolt 15, and In this example, a bolt retaining edge 6 for hooking and holding the inserted bolt 15 in the hole 5 is formed, and in this example, the bolt retaining edge 6 of the tambuckle 1 The part 4 is formed partially below the edge of the bolt hole 5.

That is, the locking edge 6 for retaining the bolt is slightly larger than the shaft diameter of the bolt 15 penetrating through each of the pair of opposed hanging support pieces 4 of the tambuckle 1 to loosen the bolt 15. Bolt holes 5 which can be inserted in a fitting manner are partially provided below the bolt holes 5 so that the bolts 15 can be held and held by the piping band 7.
In this case, the bolt retaining edge 6 of the present embodiment is used to crush the end of the bolt hole 5 in the hanging support piece 4 by press crushing (which is called plastic deformation by pressing). May be formed by reducing the thickness of the bolt locking stopper edge 6 in this example.
The taper is tapered toward the bolt hole 5 so that the non-facing surfaces of the pair of hanging support pieces 4 are flat with the support pieces 4 and the inclined faces are inclined. ), The tip is an edge, so that in the state of hanging and holding the piping band 7 described later, each of the retaining edges 6 for bolt removal prevents the side where the bolt 15 is pulled by the load from being pulled. In the state where the flat surface is used and the bolt 15 is inserted into the thread groove, the hook 15 is securely hooked and locked to effectively hold the bolt 15 in a hooked state. The buckle 1 is tapered such that the thickness of the buckle 1 including the hanging support pieces 4 is 1.8 mm and the leading edge of the locking edge 6 is 0.5 mm. Using the bolt 15, insert There as to perform over locking.

At this time, in the pipe band 7 of the present embodiment, the connection of the hinge 11 at the intermediate position in the bending direction between the pair of curved band pieces 8 and 9 is deviated to one of the pair of curved band pieces 8 and 9 to extend the length. In this example, the displacement is caused by a curved band piece 8 for temporarily placing a pipe having an arc length of not less than a half circle. The band piece 8 is used, and the other is used as a curved band piece 9 for holding a pipe pipe having the remaining arc length. The former is 200 ° to 225 °, preferably 210 °.
With an arc length in the range of ~ 222 °, the latter being 160 °
To 135 °, preferably 150 ° to 138 °, and the position of the hinge 11 is the corresponding connecting position of the curved band pieces 8, 9 as follows.
The hinge 11 is connected at the middle position in the bending direction.

The reason why the arc lengths of the curved band pieces 8, 9 are in the above range is that when the curved band piece 8 for holding down the pipe pipe falls below 200 °, the pipe band 7 is held and held. In this state, it is difficult to hold the pipe B, that is, to temporarily hold the pipe B in a bridging state between the plurality of pipe bands 7. The receiving opening becomes too narrow, and it becomes difficult to fit the pipe B even if the opening is widened. On the other hand, if it is less than 210 °, the holding of the pipe B tends to lack stability, and it exceeds 222 °. In addition, the spring force of the curved band piece 8 is so strong that the ease of fitting of the pipe B and the tendency of the workability to be impaired tend to be deteriorated. , Above temporary placement The most preferred 216 ° to 220 ° of arc length stability and easiness of the surface of the work,
The other curved band piece 9 has an arc length of 144 ° to 140 °, and the hinge 11 is connected at an intermediate position in the bending direction in a range corresponding to this.

The piping installation of the piping pipe B using the piping band apparatus A of the present embodiment constructed as described above will be described. As in the conventional case, for example, a large number of suspension bolts 17 suspended at a predetermined interval from a ceiling slab are installed. The buckle 1 is screwed and installed via the rotary nut 2 by screwing the rotary nut 2 to the buckle 1.
One of the pipe bands 7 opened so as to take the shape of a letter, in this example, the fastening pieces 12 of the curved band pieces 8 for temporarily placing the pipe pipes are superimposed and the fastening pieces 1 are formed.
A bolt 15 is inserted from each side into the bolt holes 5 and 13 of the pair of opposed hanging support pieces 4 of the fastening piece 12 and the tan buckle 1 at this time. A state in which the pipe band 7 is temporarily held and held by the tan buckle 1 by hooking and locking the supporting piece 4 on the bolt retaining edge 6 so as to prevent the bolt 15 from being removed and hook and retain the bolt 15. Is maintained, the pipe B is held by hand and fitted into one of the pipe bands 7, that is, the curved band piece 8 for temporarily placing the pipe, and the pipe B is temporarily placed between the respective pipe bands 7. After that, the other one of the pipe bands 7, that is, the curved band piece 9 for holding the pipe pipe, is attached to the connecting hinge 11 so that the pipe pipe B is covered with the curved band piece 9. Yo The fastening piece 12 is rotated and closed, the fastening piece 12 is overlapped with the outside of the other hanging support piece 4 of the tambuckle 1, and the bolt 15 is inserted through the bolt hole 13 of the fastening piece 12. Nut 1 on the bolt 15
6. In this example, a wing nut selected so that it can be screwed without using a tool is screwed for the first time, and its fastening is fixed.

Since the bolt 15 is hooked and held on the locking edge 6 for retaining the bolt, the pipe band 7 opened so that the bolt 15 has a three-sided side shape is held in a state where the pipe band 7 is cantilevered on its shaft. The bolt 15 receives the load of the pipe band 7 and, after holding the pipe B, also receives the load of the pipe B.
Is pulled downward, and is vertically inclined between the bolt holes 5 of the pair of opposed hanging support pieces 4. Therefore, in general, the bolt retaining lip 6 on the side supporting the piping band 7 is provided. However, the bolt enters the thread groove of the bolt 15 and is hooked and held. On the other hand, when the diameter of the bolt hole 5 is relatively close to the shaft diameter of the bolt 15, the state of the inclination becomes slightly gentle. As a result, the bolts 15 are simultaneously hooked and held on both of the bolt retaining retaining edges 6, so that the bolts 15 are not temporarily fixed by screwing the nuts 16, and the bolts 15 are not fixed.
And the piping band 7 supported by the bolt 15 and the piping pipe B fitted and held in the band 7 can be reliably prevented from falling.

The pipe band 7 of the present embodiment includes a hinge 1 at a middle position in the bending direction between the pair of bending band pieces 8 and 9.
One connection is displaced to one of a pair of curved band pieces 8, 9;
Since the long-side curved band piece 8 is used for temporary placement of the pipe pipe, the pipe band B is not manually operated while the pipe pipe B is held by hand as in the related art.
The operation of holding the pipe B and the operation of operating the pipe band 7 can be separated and can be sequentially performed, so that a single worker can hold the pipe B after holding the pipe B. , The operation of the piping band 7 can be performed, and a series of piping operations can be performed.

In the drawing, reference numeral 3 denotes a suspension bolt 17 of the tan buckle 1.
The retaining projections 10 of the screwing rotary nut 2, 10 are reinforcing ribs of the curved band pieces 8, 9 in the piping band 7, 14 are
The nut 16 is provided on the fastening piece 12 of the curved band piece 8 for temporarily placing the pipe pipe on the side where the bolt 15 is inserted.
2 shows a detent projection of the bolt 15 for facilitating the screwing of the bolt 15.

Although the illustrated example is as described above, the piping band is replaced by a pair of curved band pieces each of which is the same as in the prior art.
/ 2, having an arc length of 2 circles, hinged at an intermediate position in the center position in the bending direction, and having a pair of curved band pieces of different lengths having an arc length of the above angle, and connecting them. Instead of the above hinged connection, it should be hinged by a field assembly hinge which is rotatable by being detachably connected to each other and connected at the site. The bolt shall be provided on one of the bolt holes of the hanging support piece, the bolt retaining lip shall be provided on the entire inner circumference of the bolt hole, and the lower half of the inner circumference shall be provided in a semicircular shape. In this case, the edge of the bolt hole shall be cut and formed, and in these cases, the retaining edge of the bolt shall be inclined inward and outward of the hanging support piece so as to match the screw groove of the bolt. To install Including such that, in the practice of the present invention, Tan buckle, the bolt holes, the bolt retaining engagement Tomeen, pipe band, the curved band pieces, hinges,
The specific shapes, structures, materials, relationships among these, and additions to the pipes and the like can be of various forms without departing from the gist of the present invention.

[0018]

The present invention is configured as described above.
According to the first aspect of the present invention, it is possible to carry out cantilever holding of the piping band by the tambuckle without temporarily fixing the nut, and to omit the work of temporarily fixing the nut and removing the nut, thereby reducing the piping work. It is possible to provide a piping band device which can eliminate the complexity as much as possible and can ensure the efficiency thereof.
In addition to the above, the bolt can be easily and reliably prevented from coming off, and the fastening piece of one of the curved band pieces of the piping band can be attached to any of the pair of opposing hanging support pieces. The present invention according to claim 3 is characterized in that the form of the locking lip of the tan buckle can be changed to a pipe band or a pipe band or a pipe band. It is possible to ensure that the bolt receiving the load of the pipe is hooked and locked, so that the retaining of the bolt can be more reliably performed. The locking and locking edge can be formed simply, reliably and relatively inexpensively by, for example, processing the tan buckle at the same time as the bolt hole processing or post-processing. In addition to the above, the invention of the present invention further eliminates the need for an operator who has to hold the above-mentioned piping pipe, and allows a single operator to perform the piping work, thereby further improving the efficiency of the piping band apparatus. Can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a piping band device showing a relationship between a buckle and a curved band piece.

FIG. 2 is a perspective view showing a state in which a piping pipe is temporarily held.

FIG. 3 is a side view showing a piping installation state of a piping pipe.

FIG. 4 is an enlarged perspective view of the tan buckle.

FIG. 5 is an enlarged vertical sectional view of a bolt hole portion of a hanging support piece of the tan buckle.

FIG. 6 is a longitudinal sectional view showing a relationship between a bolt retaining lip and a bolt in a cantilever holding state of a piping band.

FIG. 7 is a longitudinal sectional view showing a relation between a bolt retaining edge and a bolt and a state in which a pipe is already installed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Piping band device B Piping pipe 1 Tambuckle 4 Hanging support piece 5 Bolt hole 6 Bolt retaining locking edge 7 Piping band 8 Curved band piece 9 Curved band piece 11 Hinge 12 Tightening piece 13 Bolt hole 15 Bolt 16 Nut

Claims (5)

[Claims] 1. A buckle having a rotating nut at the upper end for screwing a suspension bolt and a pair of opposed cantilevered supporting pieces each having a bolt hole and hanging at a lower end, and a pair of curved hinges hinged at an intermediate position in the bending direction. A band piece and a pair of pipe bands each having a fastening piece having a bolt hole at the upper end of the curved band piece; and a pair of opposed holding support pieces of the tambuckle facing the pipe band. A pair of fastening pieces are overlapped from the outside in a sandwiching shape, and a bolt is inserted into one of the bolt holes from one of the fastening pieces, and a nut is screwed onto the bolt on the other fastening piece. A pipe band device for tightening and fixing a pipe band to a buckle, wherein a bolt is attached to an edge of a bolt hole of one or both of the pair of opposed supporting members of the tambuckle. A pipe band device characterized in that it is thinner than a screw groove of a bolt, and a locking edge for retaining a bolt which hooks and holds an inserted bolt is formed in the bolt hole. 2. The piping band according to claim 1, wherein the bolt locking retaining edge of the tan buckle is formed at an edge of a bolt hole in both of the pair of opposed hanging support pieces. apparatus. 3. The piping according to claim 1, wherein the buckle has a bolt retaining retaining edge formed partially below an edge of the bolt hole in the hanging support piece. Band equipment. 4. The bolt retaining edge of the tanbuckle is formed by reducing the thickness of an edge of a bolt hole in a hanging support piece by crushing a press. , 2 or 3. 5. A hinge connection at an intermediate position in a bending direction between the pair of curved band pieces of the piping band is deviated to one of the pair of curved band pieces so that the piping pipe can be held by the longer curved band piece. Claim 1, characterized in that
The piping band device according to 2, 3, or 4.