JPH0336700Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a shutter smoke prevention device that lowers the shutter without resistance by changing the direction of a smoke shield plate provided on the shutter lintel when the shutter is lowered.

[Prior art]

As shown in Figure 3, a conventional shutter smoke prevention device is designed to prevent smoke by contacting the lintel through which the shutter passes with an elastic smoke shield plate provided on the lintel on the slat plane corresponding to the shutter. What has been done is known.

[Problem that the invention attempts to solve]

The smoke shield plate made of elastic material provided in the lintel is oriented in a direction that resists the shutter slats when they are lowered, as shown in the figure, when the shutter is stowed, thus causing the shutter to suddenly lower in the event of a fire. sometimes hindered. This has been dealt with by installing auxiliary weights on the seat plate, but this has been inconvenient as it requires welding on site when attaching the auxiliary weights.

[Means for solving problems]

The present invention was devised in order to eliminate this problem in view of such circumstances, namely, one end of a smoke shield made of an elastic material is installed in a mounting groove corresponding to the shutter in the lintel through which the shutter passes. Attach the smoke shield plate by an appropriate means, and bring the free end of this smoke shield into contact with the flat surface of the shutter slat, which is made of continuous slats, when closed, and when storing the shutter, use the recess provided in the lowest slat of the shutter slat to close the shutter. As a shutter smoke prevention device, the smoke shield panel is designed to extend away from the shutter when the shutter is lowered. The purpose is to allow smooth operation.

〔Example〕

Next, an embodiment of the shutter smoke prevention device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is bent on both sides, and this bent part is formed by forming a slat S into slightly different ring parts 1a and 1b.
A shutter in which small ring portions 1b adjacent to a are rotatably fitted and connected, and guide rails are installed vertically on the left and right so that when the flat surface extends from the adjacent flat surface in the fitted state, it forms a straight plane. 2, 2, and is raised and lowered by a winding drum placed above.

3 is a lintel part, and this lintel part 3 is provided with an attachment bending part 4 opposite to the shutter 1, and one end of a smoke shield plate 5 made of an elastic material such as rubber is crimped with a bolt 6 etc. and attached to this part. be. Further, the free end of the smoke shield plate 5 is brought into contact with the slat plane of the shutter when the shutter is closed.

A recess 7 is provided in the lowest slat Sa of the shutter 1 at a position corresponding to the smoke shield 5 provided on the lintel 3 when the shutter 1 is housed, so as to prevent contact when the smoke shield 5 is extended. When the smoke shield plate 1 is opened, the smoke shield plate 5 extends in the recess 7, and when the smoke shield plate 5 is lowered, the smoke shield plate 5 is guided by the recess 7 to change its direction.

[action, effect]

As is clear from the above-mentioned configuration, the shutter 1 of the present invention moves up and down along the guide rails 2 and 2 to open and close.
A smoke shield plate 5 is provided in the recess 7 provided in the lowest slat Sa of the shutter 1 by crimping one end to the lintel 3.
When the free side of the smoke shield plate 5 is fitted and the smoke shield plate 5 is extended, the tip of the smoke shield plate 5 is separated from the slat. When the shutter 1 is to be closed, the smoke shielding plate 5 in the recess 7 is guided along the recess 7, and the shutter 1 is closed while its tip is in contact with the slat plane. When closed, the tip of the smoke shield plate 5 comes into contact with the slat plane 1, and the lintel becomes airtight.

As mentioned above, the present invention involves attaching one end of a smoke shield made of an elastic material to a mounting groove corresponding to the shutter in the lintel through which the shutter passes, and attaching the free end of this smoke shield to the mounting groove corresponding to the shutter. A shutter smoke prevention device characterized in that the slats are brought into contact with the slat plane of a continuous shutter when closed, and extend away from the shutter through a recess provided in the lowest slat of the shutter slat when the shutter is stored. When the shutter is raised and opened, the free end of the smoke shield provided in the lintel extends through a recess provided in the lowest shutter slat, and when the shutter is lowered, the smoke shield is guided by the recess. The direction of the shutter is changed so that there is no resistance when lowering the shutter, allowing smooth operation without resistance.

[Brief explanation of drawings]

The drawings show an embodiment of the shutter smoke prevention device according to the present invention; FIG. 1 is a side view of the lintel;
FIG. 2 is a side view of another embodiment in which the shape of the slat recess is different, and FIG. 3 is a side view of a conventional lintel smoke prevention device. 1... Shutter, 1a..., 1b... Ring part,
2... Guide rail, 3... Liner section, 4... Mounting bent object, 5... Smoke shield plate, 6... Bolt, 7...
...Concavity, S, Sa...Slat.

Claims (1)

[Scope of utility model registration request] Attach one end of a smoke shield made of elastic material to a mounting groove corresponding to the shutter in the lintel through which the shutter passes, by appropriate means, and attach the free end of this smoke shield to the slat of the shutter by making the slats continuous. This shutter smoke prevention device is characterized by being in contact with a flat surface when the shutter is closed, and extending away from the shutter through a recess provided in the lowest slat of the shutter slat when the shutter is stored.