JPH06555Y2 - Panel shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a panel shutter in which each panel forming a shutter curtain is connected to a roller chain or the like driven by a sprocket and can be raised or lowered.

[Prior art and its problems]

Conventional general panel shutters, as shown in FIG.
A plurality of panels 2, 2 forming the shutter curtain 1 ...
Is connected to the roller chain 4 driven by the sprocket 3 at a predetermined mounting pitch L (mm), and this mounting pitch L is a constant length than the panel height H (mm) of each panel 2. It is selected to be long.

In this way, the mounting pitch L of each panel 2 is selected longer than the panel height H, and the clearance C is provided between each panel 2 and 2 suspended by the roller chain 4. When the panels 2, 2 ... Rotating in the F ₁ direction and being vertically raised pass through the sprocket 3, the concave groove 2b formed at the lower end of each panel 2 is a ridge formed at the upper end of the succeeding panel 2. This is because the panels 2 are completely separated from each other so that each panel 2 can be smoothly horizontally moved and moved onto the storage rail 5 while maintaining the vertical state.

However, according to this configuration, when the shutter curtain 1 is closed, the space between the panels 2 and 2 which passes through the sprocket 3 rotating in the direction of the arrow F ₂ opposite to the above and sequentially descends vertically at a predetermined interval. There was a risk of getting injured by pinching fingers in the gap S generated in the above.

That is, in the conventional panel shutter, after the seat plate panel 2 forming the lower end of the shutter curtain 1 is completely descended and touches the floor surface, the seat plate panel 2 and the convex ridges 2a of the preceding panel 2 start. Since the recessed grooves 2b of the succeeding panel 2 are sequentially fitted so that the panels 2, 2 ... Are stacked in multiple stages, the shutter curtain is kept until the seat panel 2 is completely lowered and touches the floor surface. From the lower end to the upper end of 1, the gaps S, S into which fingers can enter between all the panels 2 and 2
There was a lot of open space, and there was a great risk of so-called finger-stuffing.

[Purpose of device]

Therefore, the present invention, even when the seat panel that forms the lower end of the shutter curtain is not touching the floor surface during descent,
A panel shutter is provided that connects the preceding panel including the seat panel panel and the subsequent panel that follows the panel to each other so that the panel shutter can be lowered without a gap between the panels. The purpose is to prevent accidents where fingers are caught in the front.

[Constitution of device]

To achieve this object, the present invention provides a panel shutter in which each panel forming a shutter curtain is connected to a chain driven by a sprocket at a predetermined pitch longer than the panel height. The chain is connected to the chain via a roller shaft of a guide roller guided by a guide rail, and an offset roller provided with a predetermined eccentric dimension is attached to the chain substantially in the middle of each panel. A second guide rail that guides each offset roller so as to approach the row of guide rollers guided by the first guide rail is provided in parallel with the first guide rail.

[Function of device]

According to the present invention, the offset roller projecting from the chain that connects the respective panels via the roller shaft of the guide roller is guided by the second guide rail and is guided by the first guide rail. When brought close to the row, the chain is pulled by the offset roller in the direction orthogonal to the chain, so that the distance between the roller shafts that connect the panels to the chain is shortened, and the upper and lower panels are brought closer to each other. There is no gap between the panels for fingers.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a side view showing an example of a panel shutter according to the present invention, and FIGS. 2 and 3 are sectional views taken along lines AA and BB, respectively.

The same parts as those in FIG. 4 are designated by the same reference numerals and detailed description thereof will be omitted.

In the case of the present invention, first, similarly to the conventional panel shutter shown in FIG. 4, a plurality of panels 2, 2, ... Forming the shutter curtain 1 are attached to a chain 4 such as a roller chain driven by a sprocket 3. It is configured to be connected at a predetermined pitch L higher than the height H.

Each panel 2 is connected to the chain 4 via the roller shaft 8 of the guide roller 7 guided by the first guide rail 6, and each of the panels 2 and 2 is connected to the chain 4.
Offset rollers 9 are respectively provided so as to project at a predetermined eccentric dimension l approximately in the middle thereof, and each offset roller 9 is guided so as to approach the row of guide rollers 7, 7 ... Guided by the first guide rail 6. The second guide rail 10
It is provided in parallel with the first guide rail 6.

Here, the eccentricity 1 of the offset roller 9 is determined when the offset roller 9 is guided by the second guide rail 10 and the chain 4 connecting the panels 2 is pulled in a direction orthogonal to the chain 4. , The axial distance between the roller shafts 8 of the respective guide rollers 7 of the upper and lower panels 2 and 2 guided by the first guide rail 6 is, for example, a distance approximately corresponding to the gap S between the panels 2 and 2. It is selected to the required length that can be shortened only.

The height of the second guide rail 10 for guiding the offset roller 9 is selected to be slightly lower than that of the first guide rail 6 for guiding the guide roller 7, and the offset roller 9 is provided at the upper end thereof. An inclined surface 11 for guiding is formed.

Then, when closing the shutter curtain 1,
By driving the sprocket 3 in the direction of the arrow F ₂ , the panels 2, 2 ... Connected to the chain 4 are suspended by the chain 4 and sequentially lowered, and the guide rollers 7 are sequentially moved from the preceding panel 2 to the first guide rail. Guide to 6.

Then, when the guide roller 7 of the succeeding panel 2 is guided to the first guide rail 6 following the preceding panel 2, the offset roller 9 attached to the chain 4 between the preceding panel 2 and the succeeding panel 2 next. Is the second guide rail 10
Of the guide rollers 7, 7 of the leading panel 2 and the trailing panel 2 guided by the second guide rail 10 and guided by the first guide rail 6 by being guided by the inclined surface 11 formed at the upper end of the They are brought close to each other in a line.

At this time, since the offset roller 9 moves in a direction orthogonal to the chain 4 by a required distance and pulls the chain 4, the roller shafts of the front panel 2 and the rear panel 2 connected to the chain 4 at a predetermined mounting pitch L. The axial distance of 8 and 8 is reduced from the initial Lmm to (Lmm-Smm).

That is, the chain 4 is formed between the leading panel 2 and the trailing panel 2.
The offset roller 9 protruding from the pulls the chain 4 to move the descending front panel 2 to the gap S between the two panels.
Since it is lifted to the subsequent panel 2 side by a distance equivalent to
The ridge 2a formed at the upper end of the preceding panel 2 and the concave groove 2b formed at the lower end of the subsequent panel 2 are fitted to each other, and the gap S between the panels 2 and 2 disappears.

As a result, each of the descending panels 2 is connected to the preceding panel and the succeeding panel that are vertically adjacent to each other without any clearance while descending the positions above the guide rails 6 and 10.
The gap S created between each panel 2 and 2 that is descending as in the past
There is no risk of injury by pinching your fingers, and the safety of the panel shutter is significantly improved.

In the above embodiment, the case where the chain 4 is pulled by the offset roller 9 to completely eliminate the gap S between the preceding panel 2 and the succeeding panel 2 has been described. You can leave it.

[Effect of device]

As described above, the panel shutter according to the present invention is
Before the respective panels forming the shutter curtain are not completely lowered, the vertically adjacent leading and trailing panels can be lowered in a state in which they are connected to each other above the first and second guide rails without a gap. Therefore, there is an excellent effect that it is possible to prevent an accident that a finger is caught in the space between the descending panels.

[Brief description of drawings]

FIG. 1 is a side view schematically showing an example of a panel shutter according to the present invention, FIGS. 2 and 3 are sectional views taken along lines AA and BB, respectively, and FIG. 4 is a conventional panel. It is a side view which shows a shutter. DESCRIPTION OF SYMBOLS 1 ... Shutter curtain, 2 ... Panel, 3 ... Sprocket, 4 ... Chain, 6 ... First guide rail, 7 ... Guide roller, 8 ... Roller shaft, 9 ... Offset roller, 10
… Second guide rail.

Claims (1)

[Scope of utility model registration request] 1. A panel shutter in which each panel (2) forming a shutter curtain (1) is connected to a chain (4) driven by a sprocket (3) at a predetermined pitch longer than the panel height. Guide rollers (7) in which the panel (2) is guided by the first guide rails (6)
The offset roller (9) is connected to the chain (4) via the roller shaft (8) of the roller and is provided on the chain (4) so as to project substantially in the middle between the panels (2) with a predetermined eccentricity. ) Are respectively installed, and a second guide rail (10) for guiding each offset roller (9) so as to approach the row of guide rollers (7) guided by the first guide rail (6) is provided. , The first guide rail (6)
A panel shutter characterized by being installed in parallel with.