JPH0536069Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a panel shutter in which a plurality of panels forming a shutter curtain are suspended from a chain at predetermined intervals and raised and lowered, and in particular, This invention relates to an improvement in a panel shutter in which a gap in a lintel forming an entrance/exit is sealed by an airtight member.

[Prior art and its problems]

To make the panel shutter airtight,
Conventionally, gaps in the guide rails that guide and support the left and right ends of each panel forming a shutter curtain, and gaps in the lintels that form the entrance and exit of each panel, have been sealed using airtight materials such as airtight rubber. ing.

FIG. 3 shows a conventional technique for sealing a gap in a lintel, in which a plurality of panels P, P... forming a shutter curtain K are suspended at predetermined intervals from a chain 2 driven by a sprocket 1. A pair of airtight rubbers 30 and 30 are protruded from the lower end of the lintel 5 that forms the entrance and exit of each panel P, and are opposed to each other with the shutter curtain K in between. slides along both sides of the panel P, so that the inner surface 5 of the lintel 5
The gap created between a and the surface of the panel P is closed, so that the inside of the lintel 5 is hermetically sealed.

However, in this case, every time the panel shutter is opened or closed, all the panels P, P... forming the shutter curtain K are raised and lowered while being in sliding contact with the airtight rubbers 30 and 30. 30, 30 becomes severely worn and lacks durability, and the surface of each panel P is made of airtight rubber 3.
There was a drawback in that the appearance of the entire shutter curtain K was significantly damaged due to staining caused by contact with the shutter curtain K.

Further, the airtight rubbers 30, 30 must be brought into sliding contact with each panel P with a weak adhesion force that does not interfere with the lifting and lowering of the panel P, making it impossible to obtain sufficient airtightness.

[Purpose of invention]

Therefore, the present invention eliminates the problem of the surface of each panel forming the shutter curtain being soiled by the airtight member that seals the inside of the lintel, and also reduces the wear of the airtight member that seals the inside of the lintel. To provide a panel shutter whose durability is improved and whose airtightness inside the lintel can be significantly improved.

[Structure of the idea]

To achieve this objective, the present invention involves a plurality of panels forming a shutter curtain being suspended from a chain at predetermined intervals and raised and lowered, and gaps in the lintels forming the entrances and exits of each panel being airtight. In a panel shutter configured to be sealed by a member, a rod disposed on the last panel of the shutter curtain so as to be movable up and down is urged to protrude downward from the bottom end of the panel. A pair of airtight members are arranged along the width direction on both sides of the panel, and between these rods and each airtight member, each airtight member is attached to the inner surface of the lintel in conjunction with the vertical movement of the rod. It is characterized in that a link mechanism is formed to advance and retreat relative to the vehicle.

[Effect of invention]

According to the present invention, when closing a panel shutter, when each panel suspended from a chain is lowered, the panel forming the lower end of the shutter curtain touches the ground, and then the succeeding panel is sequentially moved from the top of the preceding panel. As the final panel forming the top end of the shutter curtain is stacked on top of the preceding panel, the rod protruding downward from the bottom end of the final panel hits the top end of the preceding panel and receives the load of the final panel. and is pushed upward.

At the same time, a link mechanism interlocked with the rod is activated, and a pair of airtight members arranged on both sides of the final panel are advanced toward the inner surface of the lintel, causing the surface of the final panel and the inner surface of the lintel to move forward. The gap between the two is sealed.

Next, when opening the panel shutter in this state, the last panel is first suspended from the chain and begins to rise, and when the last panel becomes the leading panel and its lower end is separated from the upper end of the succeeding panel. At the same time, the rod, which is no longer loaded with the final panel, protrudes downward from the lower end of the final panel again, and the link mechanism interlocking with the rod causes each of the airtight members to retreat from the inner surface of the lintel.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described based on the drawings.

FIG. 1 is a sectional side view showing the main parts of a panel shutter according to the present invention, and FIGS. 2a and 2b are side views showing its operation.

In the present invention, a plurality of panels P, P... forming the shutter curtain K are attached to the sprocket 1.
Rods 3 are connected at predetermined intervals to a chain 2 driven by A pair of airtight members 4, 4 are disposed along the width direction on both sides of the final panel P', and a rod is provided between the rods 3 and each airtight member 4. A link mechanism L is formed to move each airtight member 4 forward and backward relative to the inner surface 5a of the lintel 5 in conjunction with the vertical movement of the lintel 3.

The link mechanism L is connected to the panel body 6 of the final panel P′.
A rod 3 is vertically supported by a bracket 7 fixed therein and urged downward by the elastic force of a spring 8, and a pair of cranks 9 converts the vertical movement of the rod 3 into rotational movement. , 9, and horizontal rods 10, 10 which are connected to these cranks 9 and reciprocated from side to side. A press plate 11 is fixed to the panel body 6 and extends along the width direction of the panel main body 6 perpendicularly to the tip thereof.

The airtight member 4 includes a stretchable bellows rubber 12 that covers the entire pressing plate 11 fixed to the tip of the horizontal rod 10, and a cross-sectional half integrally provided along the tip of the bellows rubber 12. It consists of a circular hollow tube-shaped airtight rubber 13, and a bellows rubber 12.
The rear end portion of the panel body 6 is airtightly bonded to the surface of the panel body 6, and an airtight rubber 13 provided at the tip of the bellows rubber 12 is fixed to a pressing plate 11 housed within the bellows rubber 12.

In addition, each panel P, P... and P' has protruding stripes 14a and 14b formed point-symmetrically along the upper and lower ends thereof when viewed from the center point of the side surface, so that when the shutter curtain K is closed, the upper and lower It is designed to engage with the panel in a parallel manner.

The above is an example of the configuration of the panel shutter according to the present invention, and the operation thereof will be explained next.

First, when closing the panel shutter,
As shown in Fig. 2a, each panel P is connected to a chain 2 driven by a slot 1 rotating in the direction of arrow _F1 .
P... and P' are suspended and lowered at predetermined intervals.

At this time, from the lower end of the final panel P' forming the upper end of the shutter curtain K, the rod 3 is urged downward by the elastic force of the spring 8 and protrudes.

Then, when the seat panel forming the lower end of the shutter curtain touches the floor, etc., the subsequent panels P are stacked one after the other from the top of the preceding panel P, and the lintel part as shown in Fig. 2b. The last panel P' that comes out from within 5 is stacked on top of the preceding panel P, and the shutter curtain K is completely closed.

At this time, the rod 3 protruding downward from the lower end of the final panel P' hits the upper end surface of the preceding panel P, and the final panel P' receives the load and is pushed upward against the elastic force of the spring 8.

As a result, each crank 9 is attached to the vertical rod 3.
The horizontal rods 10, 10 connected through the rods are thrust toward the inner surface 5a of the lintel 5, and the airtight rubber 13 fixed to the pressing plate 11 provided at the tip of the horizontal rod 10 is pressed against the bellows rubber 12. With this, the bellows rubber 12 is extended so as to come into contact with the inner surface 5a of the lintel 5, and as shown in FIG. 2b, the surface of the panel body 6 of the final panel P' and the lintel 5 The gap between the inner surface 5a and the inner surface 5a is completely sealed by the airtight members 4, 4.

Next, when the panel shutter is opened in this state, the sprocket 1 is rotated in the direction of the arrow _F2 , and the panels P' are hung on the chain 2 in order, starting from the last panel P', and the panel body 6 of the last panel P' is lifted.
At the same time that the bottom end of the final panel P' separates from the top end of the succeeding panel P, the rod 3 of the final panel P' protrudes downward again due to the elastic force of the spring 8, the horizontal rods 10, 10 are retracted by the link mechanism L interlocking with the rod 3, and the airtight rubber 13 fixed to the tip of each horizontal rod 10 via a pressure plate 11 separates from the inner surface 5a of the lintel 5 and retracts. As a result, the final panel P' rises smoothly within the lintel 5 without any hindrance.

As described above, according to the present invention, the airtight member 4,
4 is provided on the final panel P' forming the upper end of the shutter curtain K, and each airtight member 4 is connected to the lintel 5.
The gap in the lintel part 5 is sealed by moving forward and backward with respect to the inner surface 5a of the panels P, P... and P'.
Since the airtight rubber 13 does not come into sliding contact with each other, there is no possibility of staining the surface of each panel P, P... and P' as in the conventional case, and this also prevents wear of the airtight rubber 13 and improves its durability. can be significantly improved.

Further, each airtight member 4, 4 has a link mechanism L formed between the rod 3 which is pushed up under the load of the final panel P' and the horizontal rod 10 which advances and retreats with respect to the inner surface 5a of the lintel part 5. As a result, the airtight rubber 13 can be brought into contact with the inner surface 5a of the lintel 5 with strong adhesion, so that the airtightness within the lintel 5 can be significantly improved compared to the conventional one.

As shown by the chain lines in FIGS. 2a and 2b, there is a stepped portion 15 on the inner surface 5a of the lintel portion 5, which locks the tip of the horizontal rod 10 that rushes toward the inner surface 5a.
If this is formed, the airtight members 4, 4 will also serve as a security device for the panel shutter.

That is, since the panel shutter is closed by simply stacking each panel P, P... and P' connected to the chain 2, it is necessary to lift it up and create a gap between the panels that is large enough for a person to fit. However, when the panel shutter is closed, the horizontal rods 10 of the airtight members 4, 4 that protrude toward the inner surface 5a of the lintel 5 are locked to the step 15 that serves as a stopper, and the final panel P is closed. If the upward movement of ' is restricted, the entire shutter curtain K of the panel shutter will be locked, making it impossible to lift each panel.

[Effect of idea]

As described above, according to the present invention, it is possible to prevent the airtight member that seals the inside of the lintel from being worn out and significantly improve its durability, and the airtight member can also be used to seal each part of the shutter curtain. It has various excellent effects such as being able to eliminate the problem of the surface of the panel getting dirty and significantly improving the airtightness within the lintel.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of essential parts showing an example of a panel shutter according to the present invention, Figs. 2 a and b are side views showing its operation, and Fig. 3 is a side view showing a conventional panel shutter. . Explanation of symbols, K...Shutter curtain, P...
...Panel, P′...Final panel, 2...Chain,
3...rod, 4...airtight member, 5...lintel, 5a...inner surface of lintel, 8...spring, 9...crank, 10...horizontal rod, 11
... Pressing plate, 12 ... Bellows rubber, 13 ... Airtight rubber, L ... Link mechanism.

Claims (1)

[Scope of utility model registration request] A plurality of panels P forming the shutter curtain K are suspended from the chain 2 at predetermined intervals and raised and lowered, and gaps in the lintels 5 forming the entrances and exits of each panel P are sealed with an airtight member. In the panel shutter constructed as described above, the rod 3, which is vertically movably disposed on the last panel P' of the shutter curtain, is urged to protrude downward from the lower end of the panel P'. A pair of airtight members 4 are installed along the width direction on both sides of the panel P′.
are arranged, and a link mechanism L is formed between these rods 3 and each airtight member 4 to move each airtight member 4 forward and backward relative to the inner surface of the lintel 5 in conjunction with the vertical movement of the rod 3. A panel shutter characterized by: