WO2015064224A1

WO2015064224A1 - Sprinkler head fitting attachment tool

Info

Publication number: WO2015064224A1
Application number: PCT/JP2014/074026
Authority: WO
Inventors: 小岩　康明
Original assignee: 千住スプリンクラー株式会社
Priority date: 2013-11-04
Filing date: 2014-09-11
Publication date: 2015-05-07

Abstract

The purpose of the present invention is to provide a sprinkler head fitting attachment tool with improved operability which stably holds a sprinkler head fitting on the main body of the tool and which, after the sprinkler head fitting has been attached to the sprinkler head, can easily release the engagement between the tool and the sprinkler head fitting. In order to achieve this purpose, a holding member, such as a suction cup (5) or a paper strip (21) coated with an adhesive, which can contact and hold the surface of the sprinkler head fitting is provided on a sprinkler head fitting mounting unit (3) of this sprinkler head fitting attachment tool.

Description

Sprinkler head accessory installation tool

The present invention relates to an attachment tool used when attaching sprinkler head accessories such as a sealing plate and a cover plate to a sprinkler head installed on a ceiling.

The sprinkler head is mainly connected to piping installed on the back of the ceiling, and only the lower part of the sprinkler head is exposed to the indoor side through a hole formed in the ceiling plate. The sprinkler head accessory covers the ceiling plate hole through which the sprinkler head is inserted.

The sprinkler head accessory is composed of a cylindrical portion connected to the peripheral surface of the sprinkler head and a dish portion that covers the hole in the ceiling plate. Examples of tools for attaching the sprinkler head accessory to the sprinkler head include those described in Patent Document 1 and Patent Document 2.

The tool of patent document 1 has the dish-shaped flange which mounts a sprinkler head accessory, and the rod-shaped material installed in the downward direction. The sprinkler head accessory mounted on the flange is moved to the sprinkler head installed on the ceiling by moving the rod-like material, and the sprinkler head accessory is pushed into the sprinkler head for installation.

In the tool of Patent Document 1, when the length of the rod-like material reaches several meters, when the tool is inclined and the sprinkler head accessory is placed on the flange, and the flange side of the tool is vertically oriented toward the ceiling, The sprinkler head accessory sometimes dropped from the flange.

Therefore, in the tool 50 of Patent Document 2 shown in FIG. 6, the sprinkler head accessory (cover plate 53) is inserted between the main body 51 and the holding body 52 so that the cover plate 53 can be held on the main body 1. On the opposite side of the surface of the main body 51 where the cover plate 53 is inserted, a rod-shaped gripping portion 54 is provided.

The procedure for attaching the cover plate, which is an accessory of the sprinkler head, to the sprinkler head with the tool 50 of FIG. 6 is first to insert the cover plate 53 between the main body 51 and the holding body 52. In this state, the cover plate 53 is held by the main body 51 by the holding body 52. Next, holding the grip portion 54 by hand, the main body 51 is brought close to the sprinkler head installed on the ceiling.

The tool 50 is pushed up toward the ceiling in a state where the cylindrical portion 55 of the cover plate 53 is inserted through the lower end of the sprinkler head. Then, the engagement portion provided on the peripheral surface of the sprinkler head is connected to the cylindrical portion 55 of the cover plate 53, and the cover plate 53 is attached to the sprinkler head. Finally, the tool 50 is slid in parallel with the ceiling surface to release the engagement between the cover plate 53 and the tool 50.

Registered Utility Model No. 3027985 JP 2011-120699 A

Although the tool of patent document 1 has the merit which can hold | maintain a cover plate stably on a main body, after a person unfamiliar with work attaches a cover plate to a sprinkler head, if a tool is accidentally pulled down, it will cover. The plate may be damaged.

In addition, when the length of the grip part reaches several meters, when the tip of the tool is slid along the ceiling surface, it must be operated with great care so as not to give an impact to the cover plate. .

Accordingly, in the present invention, in view of the above problems, the sprinkler head accessory is stably held on the tool body, and the sprinkler head accessory is engaged with the tool after the sprinkler head accessory is attached to the sprinkler head. It is an object of the present invention to provide a sprinkler head accessory mounting tool that can be easily released to improve workability.

To achieve the above object, the present invention provides the following sprinkler head accessory mounting tool.
That is, a tool for attaching to a sprinkler head accessory a sprinkler head accessory that closes a hole provided at the installation position of the sprinkler head on a ceiling or a wall surface, the main body having a placement portion for the sprinkler head accessory, and the placement of the main body And a rod-shaped gripping part installed on the surface opposite to the part, and a sprinkler head accessory mounting tool in which a holding member that contacts and holds the surface of the sprinkler head accessory is installed on the mounting part.

According to the present invention, when the sprinkler head accessory is mounted on the sprinkler head accessory mounting tool (hereinafter referred to as “mounting tool”), the surface of the sprinkler head accessory is held by the holding member even when the main body is inclined. It can be held in contact with the mounting portion. In addition, after releasing the sprinkler head accessory from the sprinkler head accessory and releasing the engagement between the sprinkler head accessory and the attachment tool, the contact holding by the holding member can be released simply by moving the attachment tool downward. it can. As the holding member, a piece of paper coated with a suction cup or an adhesive can be placed on the placement unit. Or an adhesive can be directly apply | coated to the surface of a mounting part, and can be comprised.

When the suction cup is used, the mounting section can have a seating section on which accessories are seated and a suction cup installation section on which the suction cup is installed. According to this, a seating part can be installed in the center side of a mounting part, for example, and a suction cup installation part can be installed in the edge side of a mounting part. The seating part is a part where force is applied when the sprinkler head accessory and the sprinkler head are engaged. By installing the strong part of the sprinkler head accessory and the seating part, the sprinkler head accessory is overloaded. It can be prevented from being damaged.

Further, the peripheral portion of the suction cup can be configured to protrude outward from the seating portion. According to this, the suction force by the suction cup can be adjusted appropriately. Specifically, when the peripheral edge of the suction cup is protruded largely outward from the seating section, the suction force of the suction cup is strengthened, and the sprinkler head accessory can be firmly held on the main body. On the contrary, when the peripheral part of the suction cup is protruded slightly outward from the seating part, the suction force of the suction cup can be suppressed. In that case, the holding force between the sprinkler head accessory and the main body is weak, but after attaching the sprinkler head accessory to the sprinkler head, the force required to remove the sprinkler head accessory from the installation tool can be small, and overloading at this time Can prevent the sprinkler head accessory from being deformed.

Furthermore, the diameter of the peripheral part of the suction cup can be configured to be 1/3 or less with respect to the outer diameter of the sprinkler head accessory used as the mounting part. According to this, the suction force of the suction cup can be adjusted in the same manner as described above. Specifically, by using a small suction cup, it is possible to suppress the suction force of the suction cup and prevent the sprinkler head accessory from being deformed due to an overload. Moreover, the suction force by a suction cup can be made to act equally on a sprinkler head accessory by installing a suction cup in several places at predetermined intervals. As a result, it is possible to prevent the sprinkler head accessory from being deformed due to an overload applied in part.

When the adhesive is used, when the sprinkler head accessory is placed on the attachment tool, the sprinkler head accessory can be attached and held on the placement portion by the adhesive even when the main body is inclined. When the adhesive is soiled or the adhesive strength is reduced, the adhesive can be removed from the mounting portion, and the adhesive can be applied again for use. Also, when installing on the main unit with multiple sheets of paper coated with adhesive, if the surface of the paper becomes dirty or the adhesive strength decreases due to repeated use, remove the paper and remove the Can be replaced with a new one.

The suction force by the suction cup or the adhesive force of the adhesive is adjusted to be smaller than the engagement force by the engagement structure between the sprinkler head and the sprinkler head accessory.

As a holding member other than the above, it is also possible to use a suction device that sucks air between the two in order to contact and hold the surface of the sprinkler head accessory and the mounting portion.

According to the sprinkler head accessory mounting tool of the present invention, the sprinkler head accessory can be stably held on the main body of the mounting tool by the suction force of the suction cup or the adhesive force of the adhesive. Further, after the sprinkler head accessory is attached to the sprinkler head, the disengagement between the sprinkler head accessory and the attachment tool can be easily performed by moving the tool downward. Thereby, workability | operativity of the attachment operation | work of a sprinkler head accessory can be improved.

Sectional drawing of the attachment tool of 1st Embodiment. The top view of FIG. The sprinkler head accessory is set on the mounting tool shown in FIG. (A): The top view of the attachment tool of 2nd Embodiment, (b): Sectional drawing of (a). (A): The top view of the modification of FIG. 4, (b): Sectional drawing of (a). The side view of the conventional sprinkler head accessory attachment tool.

First embodiment (FIGS. 1 to 3)
The attachment tool 10 of the first embodiment includes a main body 1 and a grip portion 2. The main body 1 has a mounting portion 3 on the upper surface, on which a cover plate P, which is a sprinkler head accessory, can be mounted. An edge 3 </ b> A that is erected upward in the drawing is formed on the periphery of the mounting portion 3. The inner diameter of the edge 3A is larger than the outer diameter of the cover plate P. A cylindrical portion 4 that connects the grip portion 2 is formed on the opposite side of the placement portion 3.

A suction cup 5 is installed on the mounting portion. The suction cups 5 are made of rubber, and two suction cups 5 are installed in FIG. 2, but only one may be installed, or conversely, three or more may be installed. In FIG. 2, the suction cup 5 is installed near the periphery of the mounting portion 3. On the other hand, the seat portion 6 is formed at the center of the placement portion 3 so as to protrude upward in the drawing. The cover plate P is seated on the upper surface of the seating portion 6.

As shown in FIG. 1, the tip (peripheral part) of the suction cup 5 protrudes outward (upward in the drawing) from the seating part 6. This is a configuration for adjusting the suction force of the suction cup 5, and the deformation amount of the suction cup 5 can be controlled to be constant by placing the cover plate P in contact with the seating portion 6. Thereby, the cover plate P can be held with an appropriate suction force.

The cover plate P applicable to the mounting tool 10 includes a plate 40 and a cylinder portion 41 that cover the holes of the sprinkler head H and the ceiling board C. Since the plate 40 is formed from a thin plate of copper or a copper alloy and may be deformed when an excessive load is locally applied, the load is locally applied to the plate 40 by using the mounting tool 10. Can be prevented.

The plate 40 is joined to the cylindrical portion 41 by a low melting point alloy 42. A plurality of legs 43 extending downward are provided at the lower end of the cylindrical portion 41, and the distal ends of the legs 43 are connection portions formed by being bent so as to be parallel to the surface of the plate 40. The connecting portion and the plate 40 are joined by a low melting point alloy 42. Between the

leg parts

43 and 43, it has the flange part 44 formed in parallel with the connection part.

A plurality of claws 45 that can be engaged with the sprinkler head H are provided on the outer peripheral portion of the cylindrical portion 41. The claw 45 can be engaged with the support cup 31 provided outside the sprinkler head H, and the claw 45 is engaged with the spiral groove 32 formed on the peripheral surface of the support cup 31.

Next, a procedure for attaching the sprinkler head accessory to the sprinkler head using the attachment tool of the first embodiment will be described.

As shown in FIG. 3, the sprinkler head H is connected to the piping behind the ceiling. The lower end portion of the sprinkler head H is in a state of protruding from a hole drilled in the ceiling board C. First, the cover plate P is set on the mounting tool 10. The plate 40 of the cover plate P is lightly pressed against the mounting portion 3 of the mounting tool 10. When the plate 40 comes into contact with the seating portion 6, the peripheral portion of the suction cup 5 protruding outward from the seating portion 6 of the suction cup 5 is appropriately crushed and deformed, and a suction force acts. Thus, the cover plate P is held by the mounting tool 10 and is set.

Next, holding the holding part 2 of the mounting tool 10 by hand, the cover plate P set on the placing part 3 is brought close to the sprinkler head H installed on the ceiling. The position of the sprinkler head H and the center axis of the attachment tool 10 are adjusted so that the cylindrical portion 41 is inserted into the support cup 31.

Then, the claw 45 provided in the cylinder part 41 engages with the spiral groove 32 of the support cup 31. When the mounting tool 10 is moved in the ceiling direction (upward) as it is, the claw 45 gets over the spiral groove 32 and the cover plate P is inserted into the back of the support cup 31. After the cover plate P is pushed up to a position where the plate 40 reaches the vicinity of the lower surface of the ceiling board C, the attachment tool 10 is rotated around the central axis of the attachment tool 10. Then, the claw 45 moves along the spiral groove 32, and the cover plate P moves in the ceiling direction (upward) while rotating.

When the flange portion 44 of the cover plate P comes into contact with the lower surface of the ceiling board C, the connection between the mounting tool 10 and the cover plate P is released. If it demonstrates concretely, the suction cup 5 will leave | separate from the plate 40 by moving the attachment tool 10 below, and a connection will be cancelled | released. This completes the attachment of the cover plate P to the sprinkler head H.

Modification 1 of the first embodiment
By making the height of the seating portion adjustable, the suction force of the suction cup can be adjusted as appropriate. As a specific method of adjusting the height of the seating part, it is possible to install the seating part in various configurations with the seating part being detachable, or to install the seating parts in a thin plate shape, It is also possible to adjust the height by forming a male screw on the outer peripheral surface of the seating portion and forming a female screw at the center portion of the mounting portion and screwing them together.

Alternatively, in order to make the suction force by the suction cup 5 appropriate, if the diameter dimension (outer diameter dimension) of the peripheral portion of the suction cup 5 is set to 1/3 or less of the outer diameter dimension of the cover plate P, the suction force of the suction cup 5 is reduced. It is possible to prevent the cover plate P from being deformed due to an overload when the suction cup 5 and the cover plate P are pulled apart. Further, the suction force can be adjusted by increasing or decreasing the number of the suction cups 5 installed.

Modification 2 of the first embodiment
If the peripheral edge 3A of the mounting portion 3 of the mounting tool 10 is deleted, it is possible to correspond to the plate 40 having various shapes. More specifically, when the edge 3A is formed, the shape of the plate 40 cannot be held by the suction cup 5 unless it fits inside the edge 3A, but the edge 3A is deleted. Accordingly, it is possible to hold a plate having a size or shape that does not fit in the edge 3A.

Second Embodiment (FIG. 4)
The attachment tool 20 of the second embodiment can hold the sprinkler head accessory on the attachment tool with an adhesive. In addition, the same code | symbol is attached | subjected to the part with the same structure as 1st Embodiment, and detailed description is abbreviate | omitted.

The attachment tool 20 includes a main body 1 and a grip portion 2 as in the first embodiment. A piece of paper 21 to which an adhesive is applied is placed on the mounting portion 3 of the main body 1. A plurality of paper pieces 21 are stacked and installed, and the plurality of paper pieces 21 are joined to each other by an adhesive applied to the paper pieces 21.

When the cover plate P is set on the placement unit 3, the plate 40 and the paper piece 21 come into contact with each other and the plate 40 and the paper piece 21 are adhered by the adhesive applied to the paper piece 21, whereby the cover plate P is held on the placement unit 3. The

It is assumed that the adhesive used for the paper piece 21 has such an adhesive force that the coating or plating on the surface of the plate 40 is not peeled off, and the adhesive does not remain on the plate 40. Moreover, what can repeat pasting and peeling is desirable. When a plurality of paper pieces 21 are stacked, if dirt or dust adheres to the surface of the paper pieces 21 and becomes dirty, or the adhesive force decreases due to repeated use, the paper piece 21 on the surface is peeled off to remove A piece of paper 21 can be used.

Next, a procedure for attaching the sprinkler head accessory to the sprinkler head using the attachment tool of the second embodiment will be described.

The cover plate P is set on the mounting tool 20. The plate 40 of the cover plate P is lightly pressed against the mounting portion 3 of the mounting tool 10. Then, the surface of the plate 40 is attached to the surface of the paper piece 21 provided on the placement unit 3. The cover plate P is now set on the mounting tool 20.

Subsequent procedures from holding the grip portion 2 by hand to moving the cover plate P to rotating the attachment tool 20 to bring the flange portion 44 into contact with the lower surface of the ceiling board C are the same as in the first embodiment. .

When the flange portion 44 of the cover plate P comes into contact with the lower surface of the ceiling board C, the attachment tool 20 is moved downward to release the attached state between the paper piece 21 and the plate 40. This completes the attachment of the cover plate P to the sprinkler head H.

Modified example of the second embodiment (FIG. 5)
In the modification of the second embodiment shown in FIG. 5, the leaf spring 22 is installed on the main body 1 in order to prevent the stacked paper pieces 21 from being displaced or peeled off by an external force or the like. The leaf spring 22 presses the edge of the paper piece 21, and one end side presses the paper piece 21 downward in the figure. The other end of the leaf spring 22 is fixedly installed on the edge 3 </ b> A of the main body 1.

Thereby, when the cover plate P held by the attachment tool 20 is pulled away, it is possible to prevent the paper piece 21 from remaining on the surface of the plate 40.

1 body
2 gripping part
3 Placement part
4 cylinder
5 Suction cup
6 Seating part
10, 20 Sprinkler head accessory mounting tool
21 pieces of paper
22 leaf spring
40 plates
41 Tube
H Sprinkler head
P cover plate

Claims

A tool for attaching a sprinkler head accessory to a sprinkler head that closes a hole provided at a position where the sprinkler head is installed on a ceiling or a wall, the main body having a mounting portion on which the sprinkler head accessory is placed; A sprinkler head attachment characterized in that a holding member that contacts and holds the surface of the sprinkler head accessory is installed on the mounting portion. Product installation tool.
The sprinkler head accessory mounting tool according to claim 1, wherein the holding member is provided with a suction cup that is capable of adsorbing the surface of the sprinkler head accessory.
The sprinkler head accessory mounting tool according to claim 2, wherein the mounting portion includes a seating portion on which an accessory is seated and a suction cup installation portion on which the suction cup is installed.
The sprinkler head accessory mounting tool according to claim 2 or 3, wherein the peripheral portion of the suction cup protrudes outward from the seating portion.
The sprinkler head accessory mounting tool according to any one of claims 2 to 4, wherein a diameter of a peripheral portion of the suction cup is 1/3 or less with respect to an outer diameter of the sprinkler head accessory to be mounted. .
The sprinkler head accessory mounting tool according to claim 1, wherein an adhesive capable of adhering to the surface of the sprinkler head accessory is applied to the mounting portion as the holding member.
2. The sprinkler head accessory mounting tool according to claim 1, wherein a paper piece coated with an adhesive capable of adhering to the surface of the sprinkler head accessory is installed on the mounting portion as the holding member.
The sprinkler head accessory mounting tool according to claim 7, wherein a plurality of paper pieces are installed on the main body in a state in which a plurality of paper pieces overlap.