JP7089980B2 - Fire protection structure of the equipment mounting part of the door - Google Patents

Description

The present invention relates to a fire protection structure for a device mounting portion of a door.

As a structure for attaching a device such as a lock control device to a door, the one described in Patent Document 1 is known. In this conventional example, a metal back plate having a cable insertion port is fixed to the door to the indoor receiver, which is an indoor installation device, and to the outdoor receiver, which is an outdoor installation device. The insertion port of the back plate corresponding to the indoor installation equipment and the back plate corresponding to the outdoor installation equipment are formed at positions shifted in front view so as not to face each other, and the flame can go straight from the insertion port. Be prevented.

Japanese Unexamined Patent Publication No. 2007-29644

However, in the above-mentioned conventional example, there is a drawback that the structure becomes complicated because it is necessary to prepare a back plate for each of the indoor and outdoor installation devices.

The present invention has been made to eliminate the above drawbacks, and an object of the present invention is to provide a fireproof structure for a door device mounting portion capable of improving fireproof performance with a simple structure.

Another object of the present invention is to provide a flame shield cap applicable to the above structure.

According to the present invention, the above object is
Indoor / outdoor installation devices 2 and 3 installed on the indoor / outdoor wall surface of the door 1,
A metal back plate member 4 fixed to at least one of the indoor / outdoor installation devices 2, 3 and
It has a wiring means 6 for wiring between the indoor / outdoor installation devices 2 and 3 through the wiring opening 5 provided in the back plate member 4.
The back plate member 4 has a bottom wall portion open, and a metal flame shield cap 9 having a back wall 7 facing the wiring opening 5 at appropriate intervals and a peripheral wall 8 adjacent to the back wall 7. Detachably connected,
Moreover, the flame shield cap 9 is achieved by providing a fire protection structure for a device mounting portion of the door arranged inside the door in a state of being connected to the back plate member 4 .

In the present invention, indoor / outdoor installation devices 2 and 3 are attached to the indoor / outdoor wall surfaces of the door 1, a metal back plate member 4 is fixed to at least one of them, and wiring is attached to the back plate member 4. A wiring opening 5 for inserting the means 6 is opened.

In the present specification, the wiring means 6 includes a connector directly fixed to the installation device to which the back plate member 4 is fixed, a connector plugged into the connector, a cable connected to the connector, and the like.

A flame shield cap 9 having a back wall 7 facing the wiring opening 5 at appropriate intervals and a peripheral wall 8 and formed in a cap shape is attached to the back plate member 4.

The flame that has entered the wiring opening 5 due to a fire is evacuated by prolonging the arrival time of the flame to the opposite wall because the back wall 7 of the flame shield cap 9 prevents the flame from going straight in the direction of the opposite wall. It is possible to improve disaster prevention performance such as securing time.

Further, since the flame-shielding cap 9 is detachably attached to the back plate member 4, if a connecting portion of the flame-insulating cap 9 is prepared on the back plate member 4, it differs depending on whether or not the flame-insulating cap 9 is attached. We can provide products with disaster prevention specifications.

Furthermore, the fire protection structure of the equipment mounting part of the door is
The indoor / outdoor installation devices 2 and 3 are connected to each other via a connecting rod 10 that protrudes from the back plate member 4 and penetrates the inside of the door 1.
In the flame shield cap 9, the upper mounting piece 11 formed at the upper end is connected to the connecting rod 10, and the lower end is locked to the lower edge of the wiring opening 5 of the back plate member 4 at a predetermined position. It can be configured to be retained.

By connecting the upper end portion of the flame shield cap 9 to the connecting rod 10 and locking the lower end portion to the lower edge of the wiring opening 5, it is necessary to separately provide a mounting structure for the flame shield cap 9 on the back plate member 4. The structure is simplified because it disappears.

again,
The flame shield cap 9 has a fireproof structure of a door device mounting portion provided with a bent piece 12 that can be bent in the horizontal direction and interferes with the connecting rod 10 in a bent posture to restrict movement to the unlocked position. With a simple structure, it is possible to reliably prevent accidental detachment after mounting.

For the above fire protection structure,
A metal flame shield cap that is detachably attached to a metal back plate member 4 fixed to an installation device installed on the surface of the door 1 and closes a wiring opening 5 provided in the back plate member 4. 9 and
A locking portion 13 that locks to the lower end edge of the wiring opening 5 and
A main body portion 14 having a back wall 7 facing the wiring opening 5 at an appropriate distance from the wiring opening 5 in a mounted state on the back plate member 4, and a peripheral wall 8 adjacent to the back wall 7, and having an open bottom wall portion. ,
A flame shield cap 9 having the above can be used.

It is an exploded perspective view which shows the present invention. It is a figure which shows the door to which this invention was applied. FIG. It is a figure which shows the back plate member, (a) is a sectional view, (b) is a 3B direction arrow view of (a). It is a figure which shows the flame-shielding cap, (a) is a front view, (b) is a 4B-4B line sectional view of (a), (c) is a perspective view seen from the front side, (d) is seen from the back direction. It is a perspective view. It is a figure which shows the wearing state of the flame-shielding cap, (a) is the figure corresponding to FIG. 3 (b), (b) is the 5B-5B line sectional view of FIG. 5 (a).

The embodiment of the present invention is shown below in FIG.

In this example, a card authentication device (outdoor installation device 3) is installed on the outdoor wall surface of the door 1, and a battery case (indoor installation device 2) for supplying power to the card authentication device 3 is installed on the indoor side wall surface.

When the card (not shown) possessed by the user is authenticated by the card authentication device 3, the electric lock 16 fixed in the door 1 shifts to the unlocked state, and then the door is operated by operating the handle (not shown). 1 can be opened.

A back plate member 4 made of a metal material is fixed to the back surface of the card authentication device 3 installed on the outdoor wall surface of the door 1, that is, the indoor surface. As shown in FIG. 1, for fixing the back plate member 4, a screw 4b is used in which a screw insertion hole 4a formed in the back plate member 4 is inserted and screwed into a boss 3a formed in the card authentication device 3. To.

A connecting rod 10 formed of a metal pipe is projected from the back plate member 4 toward the back surface, and the battery case 2 is fixed by a bolt 15 screwed into a female screw 10a formed on the inner peripheral wall of the free end of the connecting rod 10. To. In the state where the bolt 15 is screwed in, the battery case 2 and the card authentication device 3 are fixed so as to sandwich the indoor side wall surface of the door 1, and the head portion 15a of the bolt 15 is arranged toward the indoor side. Since the metal back plate member 4 is arranged on the outdoor wall surface, it is difficult to remove the card authentication device 3 from the outdoor wall surface, and the crime prevention performance is improved.

In order to supply power from the battery case 2 to the card authentication device 3, the battery case 2 and the card authentication device 3 are plugged into a cable 6a constituting the wiring means 6 and a connector 6b fixed to the card authentication device 3. It is connected using a connector (not shown), and the back plate member 4 is provided with a wiring opening 5 for passing the wiring means 6. In this example, the wiring opening 5 is used to pass the connector 6b fixed to the card authentication device 3.

As shown in FIG. 3B, the wiring opening 5 is provided with notches 5a extending in the vertical direction at the left and right side edge portions in addition to the insertion space of the connector 6b.

A flame shield cap 9 is attached to the back plate member 4. As shown in FIG. 4, the flame shield cap 9 is formed by bending a metal plate material, and has a main body portion 14 including a back wall 7, left and right side walls 8a adjacent to the back wall 7, and a peripheral wall 8 composed of a ceiling wall 8b. It has an upper mounting piece 11 formed by bending the tip of the ceiling wall 8b of the main body 14 upward.

In this example, in the main body portion 14, the back wall portion 7, the left and right side walls 8a, and the ceiling wall 8b correspond to the side wall surface having a rectangular shape, and the bottom wall portion and the front wall portion facing the back wall 7 are opened. It has a shape, and the distance (width direction dimension) between the left and right side walls is formed to be slightly smaller than the width direction dimension of the wiring opening 5, and the height dimension of the left and right side walls is the wiring opening 5. It is formed to be larger than the height dimension of.

Further, an insertion piece 14a having a height dimension that can be inserted into the cutout portion 5a of the wiring opening 5 is projected from the left and right side walls 8a of the main body portion 14 in the depth direction. A hook-shaped locking portion 13 that can be locked is formed between the left and right side walls 8a and the lower end edge of the wiring opening 5, to be exact, the lower end edge of the notch 5a.

Further, the upper mounting piece 11 is provided with a long hole 11a long in the vertical direction. In the elongated hole 11a, the connecting rod 10 projecting from the back plate member 4 can be inserted, and the upper end edge becomes the connecting rod 10 in a state where the locking portion 13 is locked to the lower edge of the wiring opening 5. It is formed to a length that makes almost contact.

Further, a bent piece 12 is projected from the side edge of the upper mounting piece 11. The bent piece 12 is projected laterally from the side edge of the upper locking portion 13 in the unfolded state, and in the state before being mounted on the back plate member 4, the back wall 7 is as shown in FIG. It is bent horizontally in the direction. The bent piece 12 can be further bent horizontally and moved in a parallel posture with the upper mounting piece 11. The upper edge of the bent piece 12 has a locking portion 13 at the lower edge of the wiring opening 5. In a state where the bent piece 12 is locked and bent until it is in a parallel position with the upper mounting piece 11, the bent piece 12 is placed below the connecting rod 10 at a small interval compared to the locking depth of the locking portion 13. Set to be located.

On the other hand, as shown in FIG. 2, the door 1 is inserted with an installation hole 1a penetrating between the indoor and outdoor wall surfaces and a handle (not shown) for performing a latch release operation of the electric lock 16 fixed in the door 1. A handle insertion hole 1b is opened. When attaching the card authentication device 3 and the battery case 2, the back plate member 4 is fixed to the card authentication device 3, and the connector (not shown) fixed to the cable 6a is plugged into the connector 6b of the card authentication device 3.

After that, the flame shield cap 9 is attached to the back plate member 4, and the connector fixed to the other end of the cable is plug-in connected to the connector (not shown) on the battery case 2 side, and finally, the battery case 2 is connected. The bolt 15 for inserting the bolt insertion hole 2a of the above is screwed into the female screw 10a of the connecting rod 10 to fix the battery case 2 to the side wall surface of the room, and the mounting work is completed (see FIG. 1).

With the battery case 2 and the card authentication device 3 attached, as shown in FIG. 5, the flame shield cap 9 has the locking portion 13 locked to the lower end edge of the wire opening 5, and the upper mounting piece 11 The connecting rod 10 is inserted into the elongated hole 11a of the above, and is held in a predetermined position in a state where the rolling in the back surface direction is restricted.

Further, after the flame shield cap 9 is attached to the back plate member 4, the bent piece 12 is bent horizontally until it is in a parallel position with the back wall 7 of the main body portion 14, as shown in FIG. 5 (b). The bent piece 12 is located between the ceiling wall 8b of the main body 14 and the connecting rod 10. As described above, when the flame shield cap 9 is displaced upward because there is only a gap smaller than the locking dimension in the locking portion 13 between the upper edge of the bent piece 12 and the connecting rod 10. Even if there is, since the locking portion 13 is not released from the locking portion 13, it is possible to completely prevent the locking portion 13 from being accidentally dropped off.

According to the fire protection structure configured by installing the indoor / outdoor installation devices 2 and 3 equipped with the flame shield cap 9 as described above, the opening for mounting the indoor / outdoor installation devices 2 and 3 is provided by the back plate member 4. Further, the back wall 7 of the flame shield cap 9 faces the opening 5 for the wire passage of the back plate member 4, and a cable pull-out space is secured in the bottom wall portion of the flame shield cap 9.

Therefore, regardless of whether the fire source is indoors or outdoors, the flame spread speed can be reduced because the back plate member 4 and the back wall 7 of the flame shield cap 9 hinder the straight progress of the flame.

Further, since the flame shield cap 9 can be attached only when the indoor / outdoor installation devices 2 and 3 are installed with fire protection specifications, it is possible to select a type in which the flame shield cap 9 is not attached according to the needs of the user. It will be possible.

In the above, the case where the back plate member 4 is provided only in the card authentication device 3 which is an outdoor installation device is shown, but it can also be provided in the battery case 2 or only in the battery case 2.

Further, although the case where the flame shield cap 9 is formed in a rectangular parallelepiped shape is shown, it can be formed in an appropriate shape such as a hemispherical shell shape.

1 Door 2 Indoor installation equipment 3 Outdoor installation equipment 4 Back plate member 5 Wiring opening 6 Wiring means 7 Back wall 8 Peripheral wall 9 Flame shield cap 10 Connecting rod 11 Upper mounting piece 12 Bent piece 13 Locking part 14 Main body

Claims (5)

Indoor and outdoor equipment installed on the indoor and outdoor walls of the door,
A metal back plate member fixed to at least one of the indoor and outdoor installation equipment,
It has a wiring means for wiring between the indoor / outdoor installation devices by inserting a wiring opening provided in the back plate member.
A metal flame-shielding cap having a back wall having a bottom wall open and facing the wiring opening at appropriate intervals and a peripheral wall adjacent to the back wall is detachably connected to the back plate member. ,
Moreover, the flame shield cap has a fire protection structure of a device mounting portion of the door arranged inside the door in a state of being connected to the back plate member . The indoor / outdoor installation equipment is connected to each other via a connecting rod that protrudes from the back plate member and penetrates the inside of the door, and is also connected to each other.
A claim that the flame shield cap is held in a predetermined position by connecting an upper mounting piece formed at an upper end portion to the connecting rod and locking the lower end portion to a lower edge of a wiring opening of a back plate member. Fire protection structure of the equipment mounting part of the door described in 1. The device mounting portion of the door according to claim 2, wherein the flame shield cap is provided with a bent piece that can be bent in the horizontal direction and that interferes with the connecting rod in a bent posture to restrict movement to the unlocked position. Fireproof structure. A metal flame shield cap that is detachably attached to a metal back plate member fixed to an installation device installed on the surface of a door and closes a wiring opening provided in the back plate member.
A locking portion that locks to the lower end edge of the wiring opening,
A main body portion having a back wall facing the wiring opening at appropriate intervals in a mounted state on the back plate member and a peripheral wall adjacent to the back wall, and an open bottom wall portion.
With flame shield cap. Claimed to include a bent piece that can be bent in the horizontal direction and that interferes with a connecting rod that connects installation devices installed on the front and back of the door in a bent state and restricts the movement of the locking portion to the unlocking position. The flame shield cap according to 4.

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