JP7316231B2 - switchgear - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening/closing device that closes an opening/closing body so as to partition a space.

Conventionally, in this type of invention, as described in Patent Document 1, an opening and closing body in which a seat plate member extending in the width direction is connected to the end side in the closing direction, and an end side in the width direction of this opening and closing body There is an opening/closing device that includes a guide rail that encloses the opening/closing member in a concave shape and guides the opening/closing member in the opening/closing direction, and in which the seat plate member is brought into contact with a contact target portion on the closing direction side when the opening/closing member is fully closed.

JP 2019-173450 A

By the way, in the conventional opening/closing device, the width of the seat plate member is adjusted so that the end portion of the seat plate member in the width direction does not come into contact with and damage the object or the like during the opening/closing operation of the opening/closing body. A seat plate cap made of synthetic resin may be provided on the end side of the direction.
However, according to the above-described prior art, in the unlikely event that a fire or the like occurs, even if the opening/closing body is fully closed, the synthetic resin seat plate cap will be burned by flames, and the flame will spread inside and outside the opening/closing body. can pass through.

In view of such problems, the present invention comprises the following configurations.
An opening/closing body having a seat plate member extending in the width direction connected to the closing direction end side of the opening/closing body body; In an opening/closing device in which the seat plate member contacts or approaches an abutment target portion on the closing direction side when the opening/closing body is closed, the seat plate member includes a seat plate main body portion extending in the width direction. and a seat plate cap connected to the width direction end side of the seat plate body portion, the seat plate cap being fully closed between the width direction end portion of the seat plate body portion and the guide rail. a closing portion that closes a gap between a lower end portion of the main body of the opening and closing body and the contact target portion, the closing portion including a fire-resistant shielding core having a shape that substantially closes the gap; A switchgear comprising: a covering part covering at least a part of the core part nearer to the closing direction and formed of a material softer than the shielding core part.

Since the present invention is configured as described above, it is possible to prevent the seat plate cap from being damaged by burning, and furthermore, it is possible to prevent flames from passing through.

It is a front view which shows an example of the opening-and-closing apparatus which concerns on this invention. It is a principal part front view of the same opening-and-closing apparatus. An example of a seat plate cap is shown, (a) is a perspective view showing the upper surface side, and (b) is a perspective view showing the lower surface side. (a) and (b) are perspective views each showing an example of a core material. FIG. 4 is a side view of a connecting portion between an opening/closing body, a seat plate member, and a seat plate cap;

The present embodiment discloses the following features.
The first feature is that the opening/closing body has a seat plate member extending in the width direction connected to the closing direction end side of the opening/closing body body, and the width direction end side of the opening/closing body is surrounded by a concave shape to guide in the opening/closing direction. and a guide rail so that when the opening/closing body is closed, the seat plate member is brought into contact with or close to a contact target portion on the closing direction side thereof, wherein the seat plate member extends in the width direction. and a seat plate cap connected to a widthwise end portion of the seat plate body portion, the seat plate cap connecting the width direction end portion of the seat plate body portion with the guide rail. a closing portion that closes the gap between the lower end portion of the main body of the opening and closing body and the contact target portion when fully closed, and the closing portion is a fireproof shield having a shape that substantially closes the gap. It has a core and a cover that covers at least a portion of the shielding core near the closing direction and is made of a material softer than the shielding core (see FIGS. 1 to 5).

A second feature is that the shielding core is made of a metal material, and the cover is made of a synthetic resin material.

As a third feature, the shielding core protrudes from the cover in the opening direction and fits into a concave portion provided at the end of the opening/closing body in the closing direction (see FIG. 5).

As a fourth feature, the closing portion has a portion having the covering portion fitted to the guide rail (see FIGS. 1 and 2).

As a fifth feature, a full-open detection sensor for detecting that the opening/closing body is fully opened is provided on the opening direction side of the opening/closing body, and the seat plate cap protrudes in at least one side in the thickness direction of the opening/closing body. The protruding portion functions as a sensed portion sensed by the full-open sensing sensor (see FIGS. 1 and 5).

It should be noted that the embodiments described later also disclose inventions in which only the following constituent requirements are essential.
That is, the present invention comprises an opening/closing body in which a seat plate member extending in the width direction is connected to an end portion in the closing direction, a guide rail that encloses the end portion in the width direction of the opening/closing body in a concave shape and guides it in the closing direction, In an opening/closing device provided with a full-open detection sensor for detecting that the opening/closing body is fully opened on the opening direction side of the opening/closing body, the seat plate member includes a seat plate body portion extending in the width direction, and the seat plate body portion. a seat plate cap that covers the width direction end side of the seat plate cap, the seat plate cap is provided with a flange projecting to at least one side in the thickness direction of the opening and closing body, and the flange is detected by the full-open detection sensor It functions as a sensed part to be sensed (see FIGS. 1 and 5).
According to the present invention, it is possible to omit the part to be sensed, which has conventionally been provided on the surface of the main body of the opening/closing body, etc., and the sensing performance is also good. In addition, the seat plate cap can have both a function as a sensing part and a contact buffer function when contacting a contact target part (lintel, floor surface, etc.) when fully opened or closed. can.

<Specific embodiment>
Next, specific embodiments having the above characteristics will be described in detail with reference to the drawings.

In the following description, the "thickness direction of the opening/closing body" means the thickness direction of the opening/closing body in the closed state. Further, the "opening/closing body width direction" means a direction substantially orthogonal to the opening/closing direction of the opening/closing body and not the thickness direction of the opening/closing body.
Further, the "opening/closing direction of the opening/closing body" means the direction in which the opening/closing body slides to partition or open the space.

Further, the "outer side in the width direction of the opening/closing body" means the side in the direction toward the outside of the opening/closing body along the width direction of the opening/closing body. For example, when the guide rail on the right side is used as a reference, the widthwise outer side of the opening/closing body is the right side.
In addition, "the inner side in the width direction of the opening/closing body" means the direction side toward the inner side of the opening/closing body along the width direction of the opening/closing body. For example, when the guide rail on the right side is used as a reference, the inner side in the width direction of the opening/closing body is the left side.

Further, the "outer side in the thickness direction of the opening/closing body" means the side in the direction away from the central portion of the thickness of the opening/closing body along the thickness direction of the opening/closing body.
In addition, the "inner side in the thickness direction of the opening/closing body" means the direction side toward the central portion of the thickness of the opening/closing body along the thickness direction of the opening/closing body.

As shown in FIG. 1, the opening/closing device 1 includes an opening/closing body 10 that performs a closing operation so as to partition a space, and a guide rail 20 that encloses the widthwise end portion side of the opening/closing body 10 in a concave shape and guides it in the opening/closing direction. , a storage part 40 for storing and extending the opening/closing body 10 on the opening direction side, and a multi-optical axis sensor 50 for non-contact sensing of an obstacle below the opening/closing body 10. , constitutes a shutter device attached to an opening portion such as a window sash.

The opening/closing body 10 comprises a main body 11 of the opening/closing body by connecting a plurality of slats 11a formed by bending a horizontally elongated substantially rectangular metal plate so as to rotate between vertically adjacent slats 11a, 11a. A seat plate member 12 is connected across the width direction to the closing direction end portion side of the opening/closing member main body 11 so as to be brought into contact with the contact target portion G when fully closed.

Each slat 11a is a member having a substantially concave vertical cross-section that is continuous in the width direction of the opening/closing body. A substantially hook-shaped connecting portion 11a2 provided at the end portion, and a connected portion provided at the end portion of the body plate portion 11a1 on the closing direction side for hooking the connecting portion 11a2 of the other slat 11a or the seat plate member 12. It integrally has a portion 11a3 (see FIG. 5).

The two slats 11a, 11a adjacent to each other in the opening/closing direction are rotatable with respect to each other by the engagement of the connection portion 11a2 and the connected portion 11a3, and the other can be rotated relative to the other in the width direction of the opening/closing body. It is possible to slide.
The connected portion 11a3 is formed in a substantially curled shape having a concave portion with an open bottom (in other words, a lateral C shape with an open bottom) so that the connecting portion 11a2 can be inserted from the lower side and latched. be done.

The seat plate member 12 includes a seat plate body portion 12a extending in the width direction of the opening/closing body along the lowermost slat 11a, and a seat plate cap 12b connected to the width direction end side of the seat plate body portion 12a. provided (see FIGS. 2 and 5).
In the drawing, reference numeral 13 denotes a closing plate that blocks a part of the many optical paths of the multi-optical axis sensor 50 in order to perform blanking control.

The seat plate main body 12a is made of a single or a plurality of members made of a fire-resistant hard material (e.g., steel, aluminum alloy, stainless steel, etc.), and is configured to have a substantially inverted T-shaped longitudinal section that is continuous in the width direction of the opening/closing body. It is a thing.
The substantially vertical piece on the upper side of the seat plate main body portion 12a is superimposed on the main body plate portion 11a1 of the slat 11a, and is fastened and fixed by fasteners such as bolts, screws, and rivets (Fig. 5).

The seat plate cap 12b is integrally composed of a core material 12b1 made of a fire-resistant material and a covering material 12b2 that covers the outer surface of the core material 12b1 (see FIG. 3).
The seat plate cap 12b is provided between the mounting portion A attached to the width direction end portion of the seat plate main body portion 12a and the width direction end portion of the seat plate main body portion 12a and the guide rail 20 when fully closed. and a closing portion B for closing the gap between the lower end portion of the opening/closing body main body 11 and the abutment target portion G.

The core material 12b1 is made of a hard material such as steel, aluminum alloy, stainless steel, or ceramic. According to the example shown in FIG. , 12b11, a connection piece portion 12b12 that connects these fastening piece portions 12b11, 12b11 on the outer side in the width direction of the opening and closing body, and the connection piece portion 12b12 protrudes outward in the width direction of the opening and closing body from the central portion in the thickness direction of the opening and closing body. It integrally has a shielding core portion 12b13 (see FIG. 4)

The shielding core part 12b13 is formed in a plate-like shape having a vertical dimension and a width dimension that closes the gap between the lower end part of the opening/closing body main body 11 and the contact target part G when fully closed. It extends so that the portion on the outside in the width direction of the body is positioned inside the guide rail 20 .

As another preferable example, the core material 12b1 having the above configuration may be replaced with a core material 12b1' shown in FIG. 4(b).
The core material 12b1' is formed by joining and integrating two halves p and the other half q which are symmetrical in the thickness direction of the opening/closing body.
Each of the half portion p and the other half portion q has a shape obtained by omitting one half portion of the fixing piece portion 12b11 and the connecting piece portion 12b12 from the core material 12b1 configured as described above. It is configured as an integral member by pressing and bending a plate material.
The one half p and the other half q are integrated by welding so that the shielding core portions 12b13 are glued together.
This core material 12b1' can further improve the fire resistance because the shielding core part 12b13 is composed of two plates.

The covering material 12b2 is made of a material softer than the core material 12b1, such as hard synthetic resin, soft synthetic resin, rubber, etc., and is integrated with the core material 12b1 by two-color molding or the like. PBT (polybutylene terephthalate) or the like is used as a preferred example of the material of the coating material 12b2, and more preferably a material with high slipperiness, a thermoplastic material, or the like is used.
As shown in FIGS. 3A and 3B, the covering material 12b2 covers the upper surfaces of the fixing pieces 12b11 and 12b11 and the end surfaces in the thickness direction of the opening and closing body, and also and a second covering portion 12b22 covering the closing direction side portion of the shielding core portion 12b13 so as to expose the upper end side of the shielding core portion 12b13.
The lower end sides of the first covering portion 12b21 and the second covering portion 12b22 protrude slightly downward from the core member 12b1.

The mounting portion A has a fixing piece portion 12b11 on the lower surface side that is superimposed on the upper surface of the seat plate main body portion 12a at the end portion in the width direction, and is attached to the seat plate main body portion 12a by fastening tools such as screws and bolts. It is fixed. In the figure, symbol a1 is a through hole for inserting the fastener.
The mounting portion A protrudes from the seat plate body portion 12a to both sides in the thickness direction of the opening/closing body (see FIG. 5), and at least a portion of the upper surface of the protruding portion is detected by the full-open detection sensor 44. It functions as a sensing part X.

The blocking portion B is composed of the shielding core portion 12b13 and the second covering portion 12b22 having the above-described configuration, protrudes from the mounting portion A to the outside in the width direction of the opening/closing body, and is covered with the second covering portion 12b22 on the protruding end side. is fitted into the opening of the guide rail 20 .
At the upper end side of the closing portion B, the shielding core portion 12b13 is exposed in the width direction of the opening/closing body. The exposed portion of the shielding core portion 12b13 protrudes upward from the second cover portion 12b22 and fits into the concave portion of the connected portion 11a3 on the lower end side of the opening/closing body 11 (see FIG. 5).

The guide rails 20 are provided on the left and right sides of the opening/closing body 10, respectively, and have a multi-optical axis sensor 50 inside.
Each guide rail 20 extends vertically between the abutment object portion G and the storage portion 40 so as to insert the widthwise end portion side of the opening/closing body 10 into the opening and enclose it in a concave shape in cross section.

As shown in FIG. 1, the storage unit 40 includes a storage case 41 having an opening at the bottom for retracting and retracting the opening/closing body 10, and a winding shaft 42 for winding up and unwinding the opening/closing body 10. , an opening/closing mechanism 43 that drives and brakes the winding shaft 42 through a power transmission mechanism such as a chain and a sprocket; a full-open detection sensor 44 that detects that the opening/closing body 10 is fully opened; circuit.

The full-open detection sensor 44 is a non-contact sensor that detects a portion of the seat plate cap 12b protruding in the width direction of the opening/closing body when the opening/closing body 10 is fully opened. As another example, it is possible to use a contact sensor as the full-open detection sensor 44 .

In addition, the multi-optical axis sensor 50 includes a light projecting unit 50a extending vertically within one guide rail 20, and a capturing unit 50b extending vertically within the other guide rail 20, A large number of optical paths arranged at intervals in the opening/closing direction are formed in the opening/closing path of the opening/closing body 10 .
When the multi-optical axis sensor 50 senses that at least part of the plurality of optical paths is blocked, it transmits the sensing signal to the control circuit (not shown) of the storage unit 40 to operate the switch 43 as appropriate. to control.
As another example other than the illustrated example, the multi-optical axis sensor 50 can be replaced with a single optical axis sensor or the like.

Next, the characteristic functions and effects of the opening/closing device 1 configured as described above will be described in detail.
Even if the end of the seat plate member 12 in the width direction comes into contact with an object or the like during the opening/closing operation of the opening/closing body 10, the seat plate cap 12b at the end is covered with the soft covering material 12b2. , the impact and damage caused by the contact can be reduced.

In addition, the impact when the opening/closing body 10 flaps in the thickness direction and the closing portion B contacts the opening of the guide rail 20, the sliding resistance between the closing portion B and the guide rail 20 during the opening/closing operation, etc. It can be reduced by the resin-made second covering portion 12b22.

When the opening/closing body 10 is fully closed, even if a fire breaks out, flames, smoke, or the like can pass through between the lower end of the opening/closing body 11 and the abutment target portion G in the thickness direction of the opening/closing body. The seat plate body portion 12a prevents the seat plate main body portion 12a from detaching at the center side in the width direction, and the seat plate cap 12b prevents the seat plate cap 12b at the end portion side in the width direction.
At this time, even if the covering material 12b2 of the seat plate cap 12b is damaged by fire, the fireproof shielding core portion 12b13 can shield flames, smoke, and the like. The shielding core portion 12b13 and the lower end portion of the opening/closing member main body 11 are fitted to each other in an uneven manner, so that the shielding effect is high.
Further, since the seat plate cap 12b has the fire-resistant core material 12b1 fixed to the seat plate body portion 12a, it is difficult to fall off even if the covering material 12b2 is damaged by fire.

Further, when the opening/closing body 10 is fully opened, the full-open detection sensor 44 detects the upper surface (detected portion) of the seat plate cap 12b, and the opening/closing device 43 can be appropriately controlled. In particular, according to the illustrated example, since the seat plate cap 12b is projected in the thickness direction of the opening/closing body from the seat plate body portion 12a (see FIG. 5), the opening/closing body 10 may flap in the thickness direction. Even so, the sensing performance of the fully open sensing sensor 44 is good.

According to the above embodiment, the core material 12b1 and the covering material 12b2 are integrated by two-color molding, but as another example, they can be integrated by a fitting structure, adhesion, screwing, or the like. be.

Moreover, the present invention is not limited to the embodiments described above, and can be modified as appropriate without changing the gist of the present invention.

1: Opening and closing device 10: Opening and closing body 11: Opening and closing body main body 12: Seat plate member 12a: Seat plate body portion 12b: Seat plate cap 12b1: Core material 12b11: Fixing piece portion 12b12: Connection piece portion 12b13: Shielding core portion 12b2 : Covering material 12b21: First covering part 12b22: Second covering part 20: Guide rail 40: Storage part 44: Fully open detection sensor A: Mounting part B: Closing part G: Contact target part X: Sensing part

Claims (5)

An opening/closing body having a seat plate member extending in the width direction connected to the closing direction end side of the opening/closing body body; An opening/closing device in which, when the opening/closing body is closed, the seat plate member is brought into contact with or close to a contact target portion on the closing direction side thereof,
The seat plate member includes a seat plate main body extending in the width direction, and a seat plate cap connected to the width direction end side of the seat plate main body,
The seat plate cap is a closing portion that closes a gap between a lower end portion of the openable/closable body and the abutment target portion when the seat plate body is fully closed, between the width direction end portion of the seat plate main body portion and the guide rail. has
The closing portion includes a fireproof shielding core portion having a shape that substantially closes the gap, and a covering portion that covers at least a portion of the shielding core portion closer to the closing direction and is made of a material that is softer than the shielding core portion. A switchgear comprising: 2. A switchgear according to claim 1, wherein said shielding core is made of a metal material, and said cover is made of a synthetic resin material. 3. The opening and closing according to claim 1, wherein the shield core protrudes from the cover in the opening direction and is fitted into a concave portion provided at the end of the opening and closing body in the closing direction. Device. The opening/closing device according to any one of claims 1 to 3, wherein the closing portion has a portion having the covering portion fitted to the guide rail. A full-open detection sensor for detecting that the opening/closing body is fully opened is provided on the opening direction side of the opening/closing body,
The seat plate cap protrudes to at least one side in the thickness direction of the opening/closing body, and the protruding portion functions as a sensed portion sensed by the full-open sensing sensor. 1. The opening and closing device according to claim 1.

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