JP2000040188A - Temporary fixing device for ceiling attaching metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify and facilitate the assembling work to an attaching hole of a ceiling attaching metal fitting. SOLUTION: This temporary fixing device 1 is formed by cutting out and bending a plate member such as a corrugated fiber board so as to integrally form a rectangular base piece 2 where a through-hole 3 is opened on an inner side, a pair of attaching hole supporting pieces 4 erected on both sides of the base piece 2 for pressurizing side ends to the inner peripheral surface of a ceiling attaching hole and screw supporting pieces 6 extended from the tip of the attaching hole supporting piece 4 in an outer side horizontal direction and provided with the through-hole 7 for passing through the attaching screw of the ceiling attaching metal fitting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary fixing device for a ceiling mounting bracket for temporarily fixing a ceiling mounting bracket used for mounting a fire detector on a ceiling surface in a ceiling mounting hole.

[0002]

2. Description of the Related Art Conventionally, as a ceiling mounting bracket used for mounting a fire detector on a ceiling surface, for example, there is one shown in FIG. 7 (Japanese Utility Model Publication No. 1-24700).

In FIG. 7, a mounting hole 11 of a ceiling plate 113 is provided.
The base 101 is mounted on the base 4 from below. Base 1
01 has a pair of mounting brackets 107 mounted behind it.
When the mounting bracket 107 is mounted in the mounting hole 114, the mounting bracket 107 stands up like the right mounting bracket 107, and thus can be arranged through the mounting hole 114 as illustrated.

When the base 101 is fixed, the mounting bracket 107 is tilted outward as in the case of the left mounting bracket 107, and in this state, the mounting screw 104 having a nut 104a screwed into the front end is tightened. Since the ceiling plate 113 is pressed, it can be fixed to the ceiling plate 113.

[0005]

However, in the case of such a conventional ceiling mount used for mounting a fire detector, when mounting the ceiling mount, the base is held down with one hand so that the base does not fall. Tighten the screw with the other hand and fix it, and it is painful work because it keeps raising both hands during the fixing work, and at the same time both hands are closed, so when you change the driver, do not release one hand However, there is a problem that workability is poor.

In addition, if the ceiling mounting bracket itself is an integral member of the base, it is necessary to deform or tilt the mounting bracket and push it in, and there is a problem that it is difficult to pass through the ceiling mounting hole. Further, when the ceiling mounting bracket has an assembly structure of a plurality of parts, the ceiling mounting hole is passed through in a temporarily assembled state with backlash, so that there is a problem that the work of passing the ceiling mounting hole is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and a temporary fixing device for a ceiling-mounting metal fitting which makes it possible to easily and easily assemble a ceiling-mounting metal fitting into a ceiling-mounting hole. The purpose is to provide.

[0008]

In order to achieve this object, the present invention is configured as follows. First, a ceiling mounting bracket in which the temporary fixing device of the present invention is used is a ring base located on the front side of the ceiling mounting hole, a sensor locking piece rising from the ring base, and a pair of mountings inserted from below into the ring base. A screw, and a fixing member that is located on the back side of the ceiling mounting hole and sandwiches the opening of the ceiling mounting hole between the screw and the ring base by tightening the mounting screw.

According to the present invention, there is provided a temporary fixing device for a ceiling mounting bracket for holding and retaining the ceiling mounting bracket in a state where the ceiling mounting bracket is inserted into the ceiling mounting hole.
A pair of mounting hole support pieces that are erected on both sides of the base piece and press the side ends against the inner peripheral surface of the ceiling mounting hole, extend horizontally outward from the tip of the mounting hole support piece and pass the mounting screw of the ceiling mounting bracket through. A plate member such as cardboard or cardboard is cut out and bent so as to integrally form a screw support piece having a through hole.

[0010] A pair of mounting hole support pieces in the temporary fixing device have creases on both sides to extend the pressing pieces, and the pressing pieces are opened flat before being mounted on the ceiling mounting holes, and are mounted on the ceiling mounting holes. In this state, it bends inward and makes pressure contact with the inner peripheral surface of the ceiling mounting hole.

[0011] Further, the temporary fixing device for the ceiling-mounting metal fitting allows the mounting screw with the fixing member of the ceiling-mounting metal fitting to fall inward and pass through the ceiling mounting hole when the ceiling-mounting metal fitting is mounted in the ceiling mounting hole. The width of the ceiling mounting hole support piece including the pressing piece bent inward by contact with the ceiling mounting hole is set.

[0012] Further, the through hole of the screw support piece in the temporary fixing device is provided with a notch in a slit state directed outward.

According to such a temporary fixing device for a ceiling mounting bracket of the present invention, when the ceiling mounting bracket is assembled into the ceiling mounting bracket and pushed into the ceiling mounting hole, the ceiling mounting bracket can be temporarily temporarily fixed so as not to fall off. When tightening and fixing with the mounting screws, it is not necessary to keep pressing the ceiling mounting bracket so as not to fall down, and the mounting of the bracket to the ceiling mounting hole can be performed easily and easily, the work load is reduced, and the working efficiency is increased.

Further, the ceiling mounting bracket is temporarily fixed at the center of the hole by four points of pressing contact with the ceiling mounting hole of the temporary fixing device. Even when the ceiling mounting bracket is turned, the position with respect to the ceiling mounting hole hardly changes. Can be accurately positioned at a fixed position.

Further, by providing a slit-shaped notch in the screw through hole provided in the screw support piece of the temporary fixing device, the temporary fixing device can be easily mounted after the ceiling mounting bracket is fastened and fixed in the temporarily fixed state. Can be pulled out.

[0016]

FIG. 1 shows an embodiment of a temporary fixing device for a ceiling mounting bracket according to the present invention, which is shown in an assembled state when mounted on the ceiling mounting bracket.

In FIG. 1, a temporary fixing device 1 is formed by cutting out, for example, cardboard or cardboard, and is bent and assembled as shown. The temporary fixing device 1 has a rectangular base piece 2, and also has a rectangular through hole 3 inside the base piece 2. A pair of mounting hole support pieces 4 are erected at opposite ends of the base piece 2.

The mounting hole support piece 4 has a pressing piece 5 projecting on both sides, and the pressing piece 5 is bent inward when the ceiling fitting is temporarily fixed to the ceiling mounting hole by forming a fold 10.
The pressing piece 5 projects substantially flatly with respect to the mounting hole supporting piece 4 in the initial assembly state, but is bent slightly inward as shown in the drawing when assembling.

On the upper part of the mounting hole support piece 4, a screw support piece 6 is formed in the outer horizontal direction. The screw support piece 6 has a threaded hole 7, and a slit-shaped notch 8 is formed in the threaded hole 7 toward the outside. Screw support piece 6
The top end of the mounting screw of the ceiling mounting bracket, which will be clarified in the description below, is inserted into the screw through hole 7. Further, at both ends orthogonal to the mounting hole support piece 4 standing on the base piece 2,
A pair of mounting bracket support pieces 9 stand upright.

FIG. 2 is an exploded view of the temporary fixing device 1 of FIG. As is apparent from the developed view of FIG. 2, the temporary fixing device 1 has a base piece 2 in the center, and extends a pair of mounting hole support pieces 4 above and below the base piece 2 through cuts, and at the tip thereof. A screw support piece 6 having a screw through hole 7 with a notch 8 is formed, and a pressing piece 5 projects on both sides. Base piece 2
A pair of mounting bracket support pieces 9 extend to the left and right of the bracket.

The temporary fixing device 1 in the deployed state is 0.5 to
It is produced by punching corrugated cardboard or cardboard having a thickness of about 2.0 millimeters, and a dashed fold 10 is formed at the same time as punching. Then, when temporarily fixing the ceiling mounting bracket, it is assembled as shown in FIG.

FIG. 3 is an explanatory view of a ceiling fitting to which the temporary fixing device 1 according to the present invention of FIG. 1 is applied. 3, (A) is a rear view, (B) is a plan view, (C) is a front view, (D) is a bottom view, (E) is a left side view, and (F) is a right side view.

For example, looking at the plan view of FIG. 3B and the front view of FIG.
The fire detector is fitted into the ring base 14 from below and fixedly held. At two places of the ring base 14, mounting screws 15 are fitted from below, and the mounting screws 15
The fixing member 16 is screwed into each of the screw portions.

The ring base 14 of the ceiling mounting bracket 11 is located on the front side (lower side) of the ceiling mounting hole, and the fixing member 16 is located on the rear side (upper side) of the ceiling mounting hole.
5, the fixing member 16 is lowered, and the ring base 1
The ceiling plate is fastened and fixed between the fixing member 4 and the fixing member 16.

The mounting screws 15 fitted into the ring base 14 from below are loosely fitted into the threaded holes of the ring base 14 so that the distal end into which the fixing member 16 is screwed passes through the ceiling mounting hole. Can be tilted inward.

FIG. 4 is an explanatory view showing a state in which the temporary fixing device 1 of FIG. 1 is temporarily fixed to a ceiling mounting hole in a state where it is assembled to the ceiling mounting bracket 11 of FIG. Here, FIG. 4A is a plan view as seen from behind the ceiling, and FIG. 4B is a front view with a cross section of the ceiling plate.

First, as shown in FIG. 4B, the temporary fixing device 1 of the present invention is assembled to the ceiling mounting bracket 11 from below the opening of the ring base 14 of the ceiling mounting bracket 11 from below. 1 mounting hole support piece 4 is fitted,
The tip of the mounting screw 15 is fitted into the threaded hole 7 of the screw support 6 at the tip of the mounting hole support 4. By attaching the temporary fixing device 1 to the ceiling mounting bracket 11 in this manner, the mounting screw 15 into which the fixing member 16 is screwed maintains the upright state, and its movement is restricted only inside and outside.

FIG. 4 shows a state in which the mounting bracket supporting piece 9 is temporarily fixed to the circular ceiling mounting hole 13 by the temporary fixing device 1.
As is clear from the plan view of (A), the pressing pieces 5 formed on both sides of the mounting hole support piece 4 of the temporary fixing device 1 are inward from the state of the substantially flat pressing piece 5 a along the mounting hole support piece 4. The tip of the pressing piece 5 is bent into a circular ceiling mounting hole 1
3 is in press contact with the inner peripheral surface.

As a result, the temporary fixing device 1 is
The ceiling mounting bracket 11 is supported at four points with respect to 3 and is centered at the center O of the ceiling mounting hole 13. Further, the mounting hole supporting piece 4 of the temporary fixing device 1 is in a standing state in which the mounting screw 15 supported by the screw supporting piece 6 as shown in FIG. To prevent the fixing member 16 from falling out of the opening end of the ceiling mounting hole 13 due to the mounting screw 15 falling down, and to fix the ceiling mounting bracket 11 in the final fixing state as shown in FIG. The base 14 is held in contact with the ceiling plate 12 to prevent the ceiling mount 11 from dropping.

As is clear from the plan view of FIG. 4A, the pair of mounting bracket support pieces 9 standing at a position orthogonal to the mounting hole support pieces 4 of the temporary fixing device 1 are mounted on the ceiling mounting bracket 1.
1 and presses into contact with the cut-out portion inside the guide piece 17 standing up, thereby positioning the ceiling mount 11 and the temporary fixing device 1.

Further, in FIG.
3 and the pressing piece 5
In order to support at a point, the width W1 of the mounting hole support piece 4 including the pressing piece 5a in a flat state before being assembled is equal to the width of the ceiling mounting hole 13 at the horizontal distance D between the pair of mounting hole support pieces 4. And a dimensional relationship of W0 <W1 between the vertical width W0 at the intersection with.

By making the width W0 smaller than the width W1 in this manner, the pressing piece 5 can be
It can be bent inward from the state of the flat pressing piece 5a, and can be supported by four pressing contacts by the pressing piece 5.

Further, a dimensional relationship of W2 <W3 is provided between widths W2 and W3 shown on the right side of FIG. 4A. Here, the width W2 is an interval in a supporting state in which the temporary fixing device 1 is incorporated into the ceiling mounting hole 13 and the pressing piece 5 is bent inward. On the other hand, the width W3 is
This is a width of the pair of guide pieces 17 of the ceiling mount 11 as viewed from the right side. By making the width W2 of the pressing piece 5 bent inside the temporary fixing device 1 smaller than the width W3 of the guide piece 17, the temporary fixing device 1 assembled to the ceiling mounting bracket 11 in the ceiling mounting hole 13 can be used. 4B, the mounting screw 15 for screwing the fixing member 16 at the tip is tilted inward with the ring base 14 as a fulcrum in FIG. 4B. At this time, the mounting screw 15 hits the end of the guide piece 17 of the ceiling mounting bracket 11 and falls down. Is not disturbed.

FIG. 5 shows a work procedure for temporarily fixing the ceiling mounting bracket 11 to the ceiling mounting hole 13 formed in the ceiling plate 12 in a circular shape as shown in FIG.

First, as shown in FIG.
1 and the temporary fixing device 1 is assembled.
The fixing member 16 is shrunk so that the fixing member 16 enters the ceiling mounting hole 13 of the ceiling plate 12. At this time, since the relationship of W2 <W3 is set in FIG. 4A, the mounting screw 15 can be easily inclined inward without being hindered by the guide piece 17.

When the ceiling mounting bracket 11 with the temporary fixing device 1 assembled therein is inserted into the ceiling mounting hole 13 in this manner, and when the hand is released, the mounting hole support piece 4 is opened by a restoring force, and the temporary fixing state shown in FIG. Is obtained. In this temporarily fixed state, as shown in FIG. 5 (B), the worker turns the mounting screw 15 with a screwdriver, so that the fixing member 16 located on the back side (upper side) of the ceiling mounting hole 13 rotates the mounting hole support piece 4. 5
The ceiling plate 1 around the opening of the ceiling mounting hole 13 as shown in FIG.
2 is clamped between the ring base 14 and the fixing member 16 to fix the ceiling mounting bracket 11.

Ceiling mounting bracket 11 for ceiling mounting hole 13
Is completed, the temporary fixing device 1 is once drawn inward as shown by the arrow A, and then pulled out as shown by the arrow B. At this time, the through hole 7 of the screw support piece 6 into which the tip of the mounting screw 15 is fitted has a slit-shaped notch 8 as shown in FIG. It can be removed from the screw 15.

When the temporary fixing device 1 is pulled off as shown in FIG. 5C, the fire detector 20 having the structure shown in FIG.
It can be mounted by fitting it from below.

The fire detector 20 shown in FIG. 6A is provided with a pair of locking springs 21 on both upper sides located in the ceiling.
For this reason, when the fire detector 20 is fitted into the ceiling mounting bracket 11 from below as shown in FIG. 6B, the locking spring 21 is opened in the guide piece 17 of the ceiling mounting bracket 11. 18 and the fire detector 20
Can be fixed.

Here, the temporary fixing device 1 of the present invention shown in FIG.
At the time of shipment from the factory, is mounted on the ceiling mounting bracket 11 shown in FIG. 3 in advance, for example, as shown in FIG. For this reason, the worker is required to mount the ceiling mounting bracket 1 with the boxed temporary fixing device 1.
5, the mounting screw 15 is folded inward and pushed into the ceiling mounting hole 13 as shown in FIG. If the temporary fixing can be performed, the fixing work to the ceiling mounting hole 13 as shown in FIG. 5C is completed only by turning the mounting screw 15 with one hand as shown in FIG. It is only necessary to pull out the device 1.

In addition, when taking out the box-mounted ceiling fixture 11 with the temporary fixing device 1, some workers mistakenly think that the temporary fixing device 1 is merely a support member for packaging and pull it out of the ceiling fixture 11. It is possible to remove it. In order to prevent this, the position where the temporary fixing device 1 is easy to see,
For example, it is desirable to display a notice on the surface of the base piece 2 that it should be inserted into the ceiling mounting hole 13 without removing it.

In order to prevent the user from forgetting to remove the temporary fixing device 1 after the installation work of the ceiling mounting bracket 11 is completed, a notice indicating that the temporary fixing device 1 is to be removed after the completion of the installation is similarly displayed. You may do so.

[0043]

As described above, according to the apparatus for temporarily fixing the ceiling mounting bracket of the present invention, when the ceiling mounting bracket is mounted on the ceiling mounting hole and temporarily mounted in the ceiling mounting hole, the temporary mounting is performed. It can be fixed, and it is not necessary for the worker to hold down the ceiling mounting bracket with one hand and attach it, reducing the work load,
Work efficiency can be improved.

Further, the ceiling mounting bracket is supported at four points by the temporary fixing device with respect to the ceiling mounting hole. Therefore, the ceiling mounting bracket can be centered and temporarily fixed to almost the center of the ceiling mounting hole, and the position of the ceiling mounting bracket can be changed. Therefore, the centering state with respect to the ceiling mounting hole can be maintained.

Furthermore, since the slit-shaped notch is provided in the screw through hole provided in the screw support piece of the temporary fixing device, the temporary fixing device is easily pulled off after the ceiling mounting bracket is tightened and fixed, and the fire is detected. A vessel can be attached.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an assembled state of a temporary fixing device according to the present invention.

FIG. 2 is a development view of FIG.

FIG. 3 is an explanatory view of a ceiling mounting bracket used in the present invention.

FIG. 4 is an explanatory view of a state in which a ceiling mounting bracket is temporarily fixed to a ceiling mounting hole.

FIG. 5 is an explanatory view of an operation of mounting a ceiling mounting bracket using the temporary fixing device of the present invention.

FIG. 6 is an explanatory view of a mounting structure of a fire detector to a ceiling mounting bracket.

FIG. 7 is an explanatory view of a base mounting bracket for a conventional ceiling mounting hole.

[Explanation of symbols]

 1: Temporary fixing device 2: Base piece 3: Through hole 4: Mounting hole support piece 5: Pressing piece 6: Screw support piece 7: Screw through hole 8: Notch 9: Mounting bracket support piece 10: Fold 11: Ceiling mounting Hardware 12: Ceiling plate 13: Ceiling mounting hole 14: Ring base 15: Mounting screw 16: Fixing member 17: Guide piece 18: Locking hole 20: Fire detector 21: Locking spring

Claims (4)

[Claims] 1. A ring base positioned on the front side of a ceiling mounting hole, a sensor locking piece raised from the ring base, a pair of mounting screws inserted through the ring base from below, and a rear side of the ceiling mounting hole. A ceiling mounting bracket having a fixing member for sandwiching an opening of the ceiling mounting hole by tightening the mounting screw; A base piece having a through hole formed therein, a pair of mounting hole support pieces that are erected on both sides of the base piece and press the side ends of the base piece into contact with the inner peripheral surface of the ceiling mounting hole; A temporary fixing device for a ceiling mounting bracket, wherein a plate member is cut out and bent so as to integrally form a screw support piece extending in a horizontal direction and having a through hole through which a mounting screw of the ceiling mounting bracket passes. Place. 2. A temporary fixing device for a ceiling mounting bracket according to claim 1, wherein said pair of ceiling mounting hole support pieces are provided with creases on both sides to extend a pressing piece, and said pressing piece is said ceiling piece. A temporary fixing device for a ceiling mounting bracket, wherein the device temporarily opens in a state before being mounted in a mounting hole, and is bent inward in a state of being mounted in the ceiling mounting hole to press and contact an inner peripheral surface of the ceiling mounting hole. 3. The temporary fixing device for a ceiling mounting bracket according to claim 2, wherein when the ceiling mounting bracket is mounted in the ceiling mounting hole, the mounting screw mounting the fixing member of the ceiling mounting bracket is provided inside. A temporary fixing device for a ceiling mounting bracket, wherein the width of the ceiling mounting hole support piece including a pressing piece bent inward by contact with the ceiling mounting hole is set so that the ceiling mounting hole support piece can fall down and pass through the ceiling mounting hole. . 4. The ceiling fixture according to claim 1, wherein the through hole of the screw support piece has a slit-shaped notch directed outward. Temporary fixing device.