JP3013766B2 - Sprinkler head positioning tool and its positioning method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler head positioning tool and a method for positioning a sprinkler head, which are used for piping of a sprinkler fire extinguishing system.

[0002]

2. Description of the Related Art Conventionally, as a positioning method shown in FIG. 7, a sprinkler head 5 which falls down from a branch pipe branched from a water supply main pipe and a finished surface of a ceiling material 2a have a predetermined positional relationship. Japanese Patent Application Laid-Open No. Hei 7-96050 discloses an example of a device having a mounting structure. The mounting structure described in this publication has a mounting portion 4b for attaching a flexible pipe to the upper end, and a female screw for mounting a sprinkler head 5 having a screw on the outer wall of the mounting portion at the lower end. Sprinkler head mounting part 4a
The sprinkler head mounting pipe 4 having the above structure is dimensioned from the tip of the sprinkler head mounting pipe 4 to the ceiling material 2a, and is mounted on the fixing material 2. Specifically, as shown in FIG. 8, a sprinkler head mounting pipe 4 having a plurality of grooves on the outside, an engaging portion 3d engaging with at least one of the grooves, and a sprinkler head mounted on the fixing member 2 This is realized by a mounting structure having a mounting member 3 having a holding portion 3e for holding the mounting tube 4 and a wedge portion 3f for tightening the mounting member 3.

[0003]

By the way, the dimensions of the tip of the sprinkler head mounting pipe 4 and the ceiling material 2a are, for example, three types in the thickness of the ceiling material, and are different depending on the type of the construction method, that is, whether or not the plaster board is used to discard. It is necessary to cope with all combinations of two types and four types of construction types, that is, combinations of embedding or exposure and shapes of sprinkler heads. Therefore, the above positioning method has 24 kinds of dimensional conditions, and it is necessary to have a large number of grooves outside the sprinkler head mounting pipe 4. When attaching to the fixing member 2 by the fastening member, a predetermined groove to be engaged out of a large number of provided grooves is confirmed, and the engaging portion 3d of the mounting bracket 3 is engaged to engage the sprinkler head mounting pipe 4. It will be attached while positioning. As a result, it is one of the tasks to be performed with care in the field.

[0004] However, the number of sprinkler heads provided at one construction site is hundreds to thousands, and it takes a great deal of time to accurately position them. Furthermore, depending on the situation at the construction site, when the work is performed in parallel with the installation of the ceiling material, quick work is required, and when the work place is dark, it is difficult to select a predetermined groove to be engaged. In some cases, the groove was installed incorrectly. In these cases, the positions of the ceiling surface and the sprinkler head are not aligned, and the work must be redone.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sprinkler head positioning tool and a positioning method thereof which can easily position a sprinkler head with respect to a ceiling surface and position the sprinkler head. Is to do.

[0006]

According to a first aspect of the present invention, there is provided a sprinkler head positioning tool comprising: a sprinkler head mounting pipe having an internal thread cut into an inner wall attached to a fixing member by a mounting bracket; A substantially U-shaped engaging portion that engages with an annular concave portion of a connecting portion between a sprinkler head having a thread engraved on an outer wall of a protruding mounting portion mounted on the sprinkler head mounting tube; A sprinkler head positioning part which stands up from and abuts the outer periphery of the sprinkler head mounting pipe, positions the annular recess and the mounting bracket at a predetermined dimension in the axial direction to position the sprinkler head and the ceiling finish surface, It is assumed to have. Thus, the position of the sprinkler head can be set by engaging the engaging portion with the annular concave portion and bringing the positioning portion into contact with the sprinkler head mounting tube.

According to a second aspect of the present invention, there is provided a sprinkler head positioning tool according to the first aspect, wherein a plurality of grooves for cutting corresponding to a predetermined size are formed at predetermined intervals in an axial direction. I have it. Thereby, the position of the sprinkler head can be set according to the situation by cutting the sprinkler head positioning portion to a predetermined length.

According to a third aspect of the present invention, there is provided a sprinkler head positioning tool, wherein the engaging portions of the first aspect are provided such that an opening interval thereof is smaller than a diameter of a corresponding annular concave portion. Thereby, the engaging portion is pressed and engaged with the annular concave portion.

Further, the sprinkler head positioning tool according to the fourth aspect of the present invention is arranged such that the sprinkler head positioning section according to the first to third aspects has a substantially semi-cylindrical shape. As a result, the inner wall of the sprinkler head positioning portion substantially abuts the outer periphery of the sprinkler head mounting tube and abuts.

According to a fifth aspect of the present invention, in the sprinkler head positioning tool according to the fourth aspect, the semi-cylindrical shape is provided such that an opening interval of a peripheral wall thereof is smaller than an outer diameter of a corresponding sprinkler head mounting pipe. I have. This allows
The semi-cylindrical shape is press-fitted substantially surrounding the outer periphery of the sprinkler head mounting tube.

According to a sixth aspect of the present invention, in the sprinkler head positioning method, one end of the sprinkler head mounting pipe is provided.
Is formed at the connection with the sprinkler head.
Of the sprinkler head positioning tool
The sprinkler head.
The sprinkler head positioning part of the setting tool is brought into contact with the mounting bracket to form the sprinkler head positioning part.
A plurality of grooves corresponding to a predetermined size to select the groove to be disconnected and, sprinkler heads positioned by selected by a groove
Specifications sprinkler head and the ceiling by cutting the part
Sprinkler head position to properly position the raised surface
Forming a fixing tool, and positioning the formed sprinkler head
The sprinkler head mounting tube and the mounting bracket are positioned by engaging the engaging portion of the positioning tool with the annular concave portion, and the sprinkler head mounting tube is mounted on the fixing member by the mounting bracket. As a result, the sprinkler head mounting pipe is cut in the groove where the sprinkler head positioning portion of the sprinkler head positioning tool is appropriately selected, is set to a size that can be positioned, and is positioned and fixed to the fixing material.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The sprinkler head positioning tool 1 of the present invention is formed by, for example, synthetic resin, and is formed to have a substantially U-shaped engaging portion 1a and a sprinkler head positioning portion (hereinafter, referred to as a positioning portion) 1b.

The engaging portion 1a has a lower end of a sprinkler head mounting tube 4 having an internal thread cut into an inner wall attached to the fixing member 2 by a mounting bracket 3, and a protruding mounting mounted on a lower end of the sprinkler head mounting tube 4. A portion which engages with an annular concave portion 5a formed at a connection portion with the sprinkler head 5 in which a thread is engraved on the outer wall of the portion is substantially U.
It is shaped like a letter. The engagement portion 1a has, for example, a thickness slightly smaller than the axial dimension of the annular concave portion 5a, and an inner diameter D of an abutting portion that contacts the annular concave portion 5a is substantially equal to a diameter of the annular concave portion 5a. The same. In addition, the engaging portion 1a
Are provided such that the opening interval L is smaller than the diameter of the corresponding annular concave portion 5a.

The positioning portion 1b is formed upright from the engaging portion 1a. The positioning portion 1b abuts on the outer periphery of the sprinkler head mounting tube 4 and engages with the engaging portion 1a.
This is a portion that can position the sprinkler head 5 and the finished surface of the ceiling material 2a by positioning the mounting bracket 3 and the mounting bracket 3 at a predetermined dimension in the axial direction. The length of the positioning portion 1b in the axial direction is set according to a condition of a predetermined dimension to be positioned, and is appropriately changed according to a combination of the thickness of the ceiling material, the type of the sprinkler head, and the like described above. You.

Next, a suspended ceiling structure using a ceiling material, a sprinkler head mounting pipe and an arrangement of a sprinkler head will be described. The fixing member 2 is for fixing the sprinkler head, and is fixed to a field edge receiver 2c that supports a field edge 2b on which a ceiling member 2a is provided and fixed by a fixing material fixing bracket 2d. This fixing member fixing bracket 2d
A female screw is engraved on the bent end, and a thumb screw 2e is screwed to the female screw. And fixing material 2
Is pressed and fixed at the tip of the thumb screw 2e toward the field edge receiver 2c.

The mounting bracket 3 is formed of, for example, a steel plate, and has an insertion portion 3a through which a sprinkler head mounting tube 4 to be described later is inserted, a penetration hole 3b through which the fixing member 2 is inserted and fixed to the fixing member. A fastening portion 3c for fastening the fitting 3 so as to press against the fixing member 2 while holding the sprinkler head attachment tube 4 from the side.
The insertion portion 3a has a substantially semi-cylindrical shape in contact with the outer periphery of the sprinkler head mounting tube 4, and a fixing screw 3a1 for positioning and fixing the sprinkler head mounting tube 4 in the axial direction.
The female screw to be screwed is formed so as to be orthogonal to the axial direction.
The through hole 3b is formed at a predetermined position between the insertion portion 3a and the tightening portion 3c and has the same shape as the outer shape of the fixing member 2 and a slightly larger size. The fastening portion 3c is inserted into the insertion portion 3a.
For pressing the outer periphery of the sprinkler head mounting tube 4 inserted from the side from the side, a female screw is engraved at a predetermined position at one end of the insertion portion 3a connected to a substantially semi-cylindrical shape, and the thumb screw 3b1 is screwed. Have. Then, the opposite end is pressed by the thumb screw 3b1, whereby the sprinkler head mounting tube 4 is gripped.

The sprinkler head mounting pipe 4 is, for example, a gently bent steel pipe. At the lower end side, a sprinkler head 5 with a thread engraved on the outer wall of the mounting portion protruding is mounted. It has a carved sprinkler head mounting part 4a, and a flexible pipe mounting part 4b with a screw carved on the outer wall for mounting a flexible pipe branched from the water supply main pipe on the upper end side. The sprinkler head mounting portion 4a is provided with a sprinkler head 5
Is connected by screwing the projecting mounting portion with a predetermined number of screw threads, and an annular concave portion 5a is formed in this connecting portion.

Next, a method of positioning and fixing the sprinkler head 5 in the above suspended ceiling structure will be described. First, the fixing material 2 is inserted into the through hole 3b of the fixing bracket 3.
Then, the fixing fitting 3 is displaced along the axis of the fixing member 2 to be disposed at a predetermined position where the sprinkler head 5 is disposed. Then, after inserting the sprinkler head mounting tube 4 into the insertion portion 3a of the fixture 3, the fastening portion 3c
, And press the outer periphery from the side to grip it to the extent that it can move in the axial direction. Next, the sprinkler head positioning tool 1 is brought into contact with the outer periphery of the sprinkler head mounting tube 4 with the positioning portion 1b,
The engaging portion 1a is engaged with the annular concave portion 5a. Then, the sprinkler head 5 and the sprinkler head mounting tube 4 are pressed in the axial direction to bring the upper end of the positioning portion 1b into contact with the lower end of the insertion portion 3a of the fixing fitting 3, and the fixing screw 3
The sprinkler head mounting pipe 4 is positioned and fixed by tightening a1. Since the axial length of the positioning portion 1b is set to a predetermined size that can appropriately position the sprinkler head 5 and the finished surface of the ceiling material 2a, the sprinkler head mounting pipe 4 is fixed at a predetermined position. Will be. Further, since the opening interval L of the engaging portion 1a is set to be slightly smaller than the diameter of the annular concave portion 5a, the engaging portion is pressed and engaged with the annular concave portion 5a to be securely locked, and the sprinkler head mounting pipe is provided. There is no need to hold the positioning portion 1b by hand at the time of adjusting the positioning of the sprinkler 4, and the positioning of the sprinkler head mounting tube 4 is further facilitated. In the description of the present embodiment, the sprinkler head positioning tool 1 is described as a synthetic resin. However, for example, as shown in FIG. For example, a metal plate material such as a stainless steel material having a height substantially the same as the size may be used.

Next, a second embodiment of the present invention will be described with reference to FIGS. This is different from the first embodiment in shape and method of use. FIG. 4A is a plan view, FIG. 4B is a side view, and the right half is a view in the direction of arrow A in FIG. The sprinkler head positioning tool 1 is formed of, for example, synthetic resin, and has an engaging portion 1a that engages with the annular concave portion 5a, a substantially semi-cylindrical shape, and a groove 1c for cutting corresponding to a predetermined dimension. And at a predetermined interval in the axial direction. Engaging part 1 of this
a also has a substantially U-shape, and has a thickness slightly smaller than the axial dimension of the annular concave portion 5a, and the opening interval L of the abutting portion in contact with the annular concave portion 5a is set to the corresponding annular concave portion. It is provided smaller than the diameter.

The positioning portion 1b stands upright from the engaging portion 1a and has a substantially semi-cylindrical shape. The positioning portion 1b has an inner surface in contact with the outer periphery of the sprinkler head mounting tube 4 and the groove 1c on the outer surface. You. The positioning portion 1b has a substantially semi-cylindrical inner diameter that is substantially the same as the outer shape of the corresponding sprinkler head mounting tube 4, and reduces the opening interval of the peripheral wall.
The groove 1c on the outer surface of the positioning portion 1b is for cutting to set the length in the axial direction according to the condition of the predetermined size to be positioned, and has a predetermined depth, for example, 3 mm. Eighteen are formed at intervals. Therefore, by appropriately cutting this groove, the axial dimension can be set at an interval of 3 mm from a minimum of 9 mm to a maximum of 66 mm. The minimum and maximum dimensions are the minimum and maximum dimensions in 24 combinations of combinations of the above-described ceiling material thickness, sprinkler head type, and the like. 9mm, 1
It is the value of the interval dimension of 2 mm and 15 mm.

Next, a method for positioning and fixing the sprinkler head 5 in the above embodiment will be described. The positioning method in this case is the same as that in the first embodiment until the positioning tool 1 is used.
The positioning tool 1 is provided with a plurality of grooves 1c for engaging the engaging portion 1a with the annular concave portion 5a and abutting the sprinkler head positioning portion 1b to the mounting bracket to cut the sprinkler head positioning portion 1b according to a predetermined size. The groove 1c to be cut is selected, and the sprinkler head and the ceiling finish surface are cut and used in the above-mentioned selected groove 1c for appropriately positioning. And
The positioning portion 1b is brought into contact with the outer periphery of the sprinkler head mounting tube 4, and the engaging portion 1a is engaged with the annular concave portion 5a. Then, the sprinkler head mounting tube 4 is pressed in the axial direction via the sprinkler head 5. Then, the cut upper end of the positioning portion 1b is brought into contact with the lower end of the fixing bracket, and the fixing screw 3a1 is tightened to position and fix the sprinkler head mounting tube 4. This positioning part 1
The axial length of b should be
The sprinkler head mounting pipe 4 is cut into a predetermined size that can appropriately position the ceiling finish surface and the ceiling finish surface.
It is fixed at a predetermined position. Further, since the sprinkler head positioning tool 1 has the grooves at predetermined intervals in the axial direction, the sprinkler head positioning tool 1 can be applied to many positioning dimensions by appropriately cutting the grooves. Also, since the positioning portion 1b is substantially semi-cylindrical, its inner wall substantially surrounds and abuts the outer periphery of the sprinkler head mounting pipe, and the upper end of the cut positioning portion has a large area with the lower end of the mounting bracket. As a result, the positioning tool 1 is stably and reliably positioned. Further, since the opening interval of the semi-cylindrical peripheral wall of the positioning portion 1b is formed to be slightly smaller than the outer diameter of the corresponding sprinkler head mounting tube 4, the positioning portion 1b presses the sprinkler head mounting tube 4 against the sprinkler head mounting tube 4. Since it is combined, it is not necessary to hold the positioning portion 1b by hand at the time of adjusting the positioning of the sprinkler head mounting tube 4, and the positioning and fixing of the sprinkler head mounting tube 4 is further facilitated.

In the above-described first and second embodiments, the engaging portion 1a is provided with the opening interval L smaller than the diameter of the corresponding annular concave portion. Alternatively, it may be configured to be large. Further, also in the second embodiment, the positioning portion 1b
The semi-cylindrical shape has a substantially semi-cylindrical inner diameter that is substantially the same as the outer shape of the corresponding sprinkler head mounting pipe 4 and reduces the interval between the openings in the peripheral wall. The outer shape of the mounting tube 4 may be substantially the same or larger.

[0023]

According to the sprinkler head positioning tool of the first aspect, the position of the sprinkler head can be set by engaging the engaging portion with the annular concave portion and bringing the positioning portion into contact with the sprinkler head mounting pipe. The sprinkler head mounting tube can be positioned according to the dimensions of the positioning portion set in advance.

In the sprinkler head positioning tool according to the second aspect, the position of the sprinkler head can be set according to the situation by cutting the sprinkler head positioning section to a predetermined length. The sprinkler head positioning tool according to claim 3 is adapted to be pressed and engaged with the annular concave portion, so that the engagement portion is pressed into engagement with the annular concave portion. It is securely locked, and there is no need to manually hold the positioning portion when positioning and adjusting the sprinkler head mounting tube, and the positioning of the sprinkler head mounting tube is further facilitated.

In the sprinkler head positioning tool according to the fourth aspect of the present invention, the inner wall of the sprinkler head positioning portion substantially surrounds and abuts the outer periphery of the sprinkler head mounting tube, so that the inner wall substantially surrounds the outer periphery of the sprinkler head mounting tube. Then, the upper end of the cut positioning portion comes into contact with the lower end of the mounting bracket over a wide area, so that the positioning tool is stably and reliably positioned.

Further, in the sprinkler head positioning tool according to the fifth aspect, since the semi-cylindrical shape is substantially press-fitted so as to substantially surround the outer periphery of the sprinkler head mounting pipe, the positioning portion is manually adjusted when positioning the sprinkler head mounting pipe. And it is easier to position and fix the sprinkler head mounting tube.

In the sprinkler head positioning method according to a sixth aspect of the present invention, the sprinkler head mounting pipe is cut into a groove in which a sprinkler head positioning portion of a sprinkler head positioning tool is appropriately selected, and is set to a dimension capable of positioning and fixed. Since the sprinkler head is positioned and fixed to the material, the sprinkler head can be fixed by a single sprinkler head positioning tool without appropriately considering the positioning dimensions by cutting the groove.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a front view showing a main part thereof.

FIG. 3 is a perspective view of a sprinkler head positioning tool according to another embodiment.

FIG. 4A is a plan view and FIG. 4B is a side view of a sprinkler head positioning tool according to a second embodiment of the present invention.

FIG. 5 is a perspective view thereof.

FIG. 6 is a front view showing the main part.

FIG. 7 is an explanatory diagram showing an outline of the present invention.

FIG. 8 is a side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sprinkler head positioning tool 1a Engaging part 1b Sprinkler head positioning part (positioning part) 2 Fixing material 3 Mounting bracket 4 Sprinkler head mounting pipe 5 Sprinkler head 5a Annular concave part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A62C 35/58-35/68

Claims (6)

(57) [Claims] 1. A sprinkler head mounting pipe having an internal thread cut on an inner wall attached to a fixing member by a mounting bracket, and a sprinkler having a thread engraved on an outer wall of a protruding mounting portion mounted on the sprinkler head mounting pipe. A substantially U-shaped engaging portion that engages with the annular concave portion of the connection portion between the head and the head, and stands upright from the engaging portion to abut against the outer periphery of the sprinkler head mounting tube; And a sprinkler head positioning part which can position the sprinkler head and the ceiling finish surface by positioning the sprinkler head at a predetermined dimension in the axial direction. 2. The sprinkler head positioning portion has a plurality of grooves for cutting corresponding to a predetermined size,
2. The device according to claim 1, wherein the plurality of holes are provided at predetermined intervals in the axial direction.
The sprinkler head positioning tool according to the above. 3. The sprinkler head positioning tool according to claim 1, wherein said engaging portion is provided with an opening interval smaller than a diameter of a corresponding annular concave portion. 4. The sprinkler head positioning portion has a substantially semi-cylindrical shape.
A sprinkler head positioner according to any of the preceding claims. 5. The semi-cylindrical shape has an opening interval between peripheral walls thereof.
5. The sprinkler head positioning tool according to claim 4, wherein said sprinkler head mounting pipe is provided with a diameter smaller than an outer diameter of a corresponding sprinkler head mounting pipe. 6. An end of a sprinkler head mounting pipe.
And a substantially U-shaped engaging portion of a sprinkler head positioning tool is engaged with an annular concave portion formed at a connection portion with the sprinkler head to position the sprinkler head.
Abuts the sprinkler head positioning part of the bracket to the mounting bracket
The sprinkler head positioning part
Select a groove to be disconnected from the groove to correspond to a predetermined size,
Sprinkler head by switching <br/> sectional sprinkler head positioning portion at selected by a groove and the ceiling surface finish
And sprinkler head positioning tool
And positioning the formed sprinkler head.
A method of positioning a sprinkler head , wherein the engagement portion of the tool is engaged with an annular recess to position the sprinkler head mounting tube and the mounting bracket, and the sprinkler head mounting tube is mounted on the fixing member by the mounting bracket.