JP2535842Y2 - Panel shutter device - Google Patents

Description

[Detailed description of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel shutter device which raises and lowers a shutter opening / closing opening by a plurality of panels constituting a shutter curtain, and more particularly to a panel shutter device which takes measures to prevent the vibration of the panel.

[Prior art]

FIG. 6 is a schematic partial cross-sectional view showing a conventional panel shutter device. In the drawing, reference numeral 1 denotes a pair of left and right guide rails erected on both sides of a shutter opening / closing opening such as a doorway of a building or a window. Each of these guide rails 1 is formed of a U-shaped member having a panel elevating / lowering guide opening on each opposing surface. A panel storage box (hereinafter referred to as a storage box) 2 is disposed above the guide rail 1. Inside the storage box 2, a pair of left and right panel drive system sprockets 3 located above the entrance, and a support for panel suspension storage whose front end is located near the upper part of the sprocket 3 and whose rear end is gradually inclined downward. A rail 4 is arranged. The sprocket 3 has two guide rails 1.
A pair of left and right chains 5 that are suspended inside and can move to the support rail 4 side in the storage box 2 are meshed. These chain 5, the ends cross the plurality of link plates 5a link pin P ₁ by those of linked normal constructed bendably rotation, fitting the left and right side portions is vertically movable slide on the guide rails 1 The upper sides of the upper and lower panels 6 adjacent to each other in the vertical direction between the two guide rails 1 are engaged with each other and connected to both upper sides. As a connecting means, a long pin (connecting pin) P protruding from both upper sides of each panel 6 is rotatably penetrated to a chain link connecting portion serving as a panel mounting portion of the chain 5. . Therefore, the upper side of each panel 6 is rotatably connected to the pair of left and right chains 5 by long pins P. An upper guide roller R for rolling on the support rail 4 is rotatably attached to the tip of the long pin P. A lower guide roller is provided on both lower sides of each panel 6.
R ₁ is mounted rotatably. Wherein the lower position of the support rails 4 in the storage box 2, the lower guide rail 7 for guiding the lower guide rollers R ₁ in a predetermined panel moving direction parallel to the support rail 4 is arranged. The lower guide rail 7 is located below the sprocket 3 in the storage box 2 and runs a roller guide path of the lower guide roller R ₁ between the upper end opening 1 a of the guide rail 1 and the lower guide rail 7. Panel lower guide to form
8a and 8b. Here, when the upper panel 6 on the support rails 4 side along the engagement area of the chain 5 in the sprocket 3 is moved, the lower guide roller R ₁ is above the panel lower guide 8a and the lower guide rail 7 of the panel 6 It is guided by each lower surface. Next, the operation will be described. When the sprocket 3 is rotated clockwise in FIG. 6 in the fully closed state of the shutter, the panel 6 moves up along the guide rail 1 by the feed operation of the chain 5 meshed with the sprocket 3, and the storage box is moved. 2, so-called shutter opening / closing openings between the guide rails 1 are sequentially opened. During the opening operation, when along the engagement area of the sprockets 3 and the chain 5 is the top of the panel 6 moves, the lower guide roller R ₁ of the panel 6 is in the lower guide rail 7 at the lower surface of the upper panel lower guide 8a Guided towards. The upper guide roller R of the panel 6 is lower guide roller R ₁ is guided along the lower surface of the lower guide rail 7 at the time of transition on the support rails 4. In this way, the panels 6 that have sequentially passed between the pair of left and right sprockets 3 in the direction of the support rail 4 are arranged side by side in the vertical posture and are adjacently held by the support rail 4. When the sprocket 3 is rotated in the counterclockwise direction in the panel storage state, the panel 6 is sequentially fed out between the guide rails 1 by the feeding operation of the chain 5 meshed with the sprocket 3, and the shutter opening / closing opening is closed. I do.

[Problems to be solved by the invention]

Since the conventional panel shutter device is configured as described above, when the panel 6 whose only upper side is rotatably hung on the chain 5 via the long pin P is extended, the panel 6 applies external pressure such as wind pressure. receiving the, by a large deflection longitudinal direction of long pin P of the upper sides as a rotation fulcrum is generated in the panel 6 of the feeding developing, lower guide rollers R ₁ is the panel lower guide 8a, rollers between 8b of the panel 6 There was a problem that it would not be introduced into the taxiway. That is, as shown in FIG. 7, the panel 6 which is fed by the operation of feeding the chain 5 by rotating the sprocket 3 is rotated.
, By lower guide rollers R ₁ abuts the direction of the arrow c on the upper side of the panel lower guide 8a, the lower guide roller R ₁ a pair of upper and lower panel lower guide 8a, while introduced into the roller guide path between 8b arrow It descends in the direction b. At this time, when the panel 6 receives an external pressure F such as a wind pressure, the panel 6 is tilted and rotated in the direction of arrow f around the long pins P on both upper sides, and the lower part of the panel 6 relative to the roller guide path between the panel lower guides 8a and 8b. guide rollers prior to the introduction of R ₁ for the upper part of the panel 6 is lowered in the direction of arrow b, the lower guide roller R ₁ panel lower guide 8a deviates below the lower side of the panel the lower guide 8b as indicated by an arrow g , 8b. Accordingly, there is a problem that the panel 6 cannot be lowered and a serious accident occurs. This invention was made in order to solve the above-mentioned problem, and even if the panel being fed out in the panel storage box receives external pressure such as wind pressure, the panel does not become unable to descend, An object of the present invention is to provide a panel shutter device capable of smoothly guiding the panel in a predetermined downward direction.

[Means for Solving the Problems]

The panel shutter device according to the present invention includes a pair of left and right guide rails erected on both sides of a shutter opening / closing opening and having a panel storage box disposed thereon, and a pair of left and right guide rails disposed in the panel storage box. A panel drive sprocket, a pair of left and right chains meshed with the respective sprockets, both sides of which are rotatably supported by these chains, and the feed operation of the chains by the rotation of the sprocket causes the chain to move between the two guide rails. A plurality of panels for raising and lowering the panel, an upper guide roller pivotally supported on both upper sides of the panel, a lower guide roller provided on both lower sides of each panel, and disposed above the panel storage box. When the chain is wound by the sprocket, the upper guide roller of the panel sequentially passing through the sprocket A support rail movably supported to hold the panels in a side-by-side state, and a lower guide roller for the panel when the upper part of the panel is moved along the chain engagement region of the sprocket, the lower guide roller being disposed below the panel storage box. A panel shutter device provided with a pair of upper and lower panel lower guides for introducing and guiding, a steady rest roller attached to both sides of each panel and located above or below a support point of the panel with respect to the chain,
A guide plate arranged to abut against the steady-state roller from below so as to guide the steady-state roller substantially parallel to the outer peripheral portion of the sprocket; and Rolling, the lower guide roller is guided between the pair of upper and lower panel lower guides.

[Action]

The panel shutter device according to the present invention has a structure in which a panel in a panel storage box is fed out from a support rail side to a guide rail by a chain feed operation by rotation driving of a sprocket, and a panel upper portion operates along a sprocket outer peripheral portion. When the steady rest roller of the panel rolls on the steady rest guide plate and is guided in a direction substantially parallel to the outer periphery of the sprocket, the panel is
It becomes a two-point support state by the support point for the chain and the contact of the steady rest roller on the steady rest guide plate,
The lower guide roller is reliably guided between the pair of upper and lower panel lower guides. For this reason, when the panel is moved between the pair of left and right sprockets in the panel feeding process, the panel does not swing due to wind pressure or the like, and does not tilt significantly. Therefore, the lower guide roller of the panel is not introduced between the pair of upper and lower panel lower guides, and the inability to lower the panel and the occurrence of an accident resulting therefrom can be prevented.

An embodiment of the present invention will be described below with reference to the drawings. First
FIG. 2 is a sectional view showing a main part of the panel shutter device according to the first embodiment of the present invention, FIG. 2 is a partial front view showing one end of the panel shutter, FIG. 3 is a left side view of FIG. The figure is a side view showing the steady rest guide plate in FIG. 1. The same or corresponding parts as those in FIGS. 6 and 7 are denoted by the same reference numerals, and redundant description is omitted. In the drawing, reference numeral 9 denotes a pair of left and right pin brackets provided on both upper end surfaces of each panel 6, and a long pin P having an upper guide roller R and penetrating the chain 5 is attached to the pin bracket 9. The upper side of the panel 6 is rotatably supported by the chain 5 via the long pin P. Therefore, the long pin P is a supporting point of the panel 6 with respect to the chain 5. As shown in FIG. 2, the chain 5 is disposed outside both end surfaces of the panel 6, and an upper guide roller R is disposed further outside the chain 5. The pin bracket 9 is rotatably supported by a steady rest roller 10 located above the long pin P at a distance L between the pin bracket 9 and the chain 5. On the other hand, a base 12 is mounted inside the left and right side walls 2a of the storage box 2 along the meshing region of the chain 5 in the sprocket 3, and the base 12 has a runout located above the outer peripheral portion of the sprocket 3. A stop guide plate 11 is provided. The steady rest guide plate 11 is formed in an arc shape curved in a direction along the outer periphery of the sprocket 3 and is arranged so as to be able to contact the steady rest roller 10 from below. In other words, each panel 6 normally moves while maintaining a substantially vertical posture at any position, and when the panel 6 moves between the pair of left and right sprockets 3 in a substantially vertical posture, The steady rest roller 10 is a steady rest guide plate 11
When the panel 6 which is held at a position further distant and moves between the pair of left and right sprockets 3 is tilted by wind pressure or the like, the anti-sway roller 10 abuts on the anti-sway guide plate 11 and rolls, The sprocket 3 is guided in a direction substantially parallel to the outer peripheral portion. Lower guide roller R ₁ is above the panel lower guide 8a of the panel 6 to its induction during
Rolls on the lower surface. Next, the operation will be described. When the sprocket 3 is rotated counterclockwise in FIG. 1 in the shutter open state in which the panel 6 is stored in the storage box 2, the feed operation of the chain 5 meshed with the sprocket 3 causes the panel 6 to rotate. Is fed out between the guide rails 1 from the support rail 4 side. In the feeding process, when the panel 6 that moves between the pair of left and right sprockets 3 maintains a substantially vertical posture, the steady rest roller 10 is held at a position above the steady rest guide plate 11 and moves. lower guide roller R ₁ at this time is moved introduced pair of upper and lower panel lower guide 8a, between 8b. In this way, panels 6 through substantially vertical position between the pair of right and left sprockets 3, the lower guide roller R ₁ also a pair of upper and lower panel lower guide 8a, by passing between 8b, between the guide rail 1 It is paid out smoothly. The above is the panel feeding operation when the panel 6 maintains the substantially vertical posture.
When an external pressure F such as a wind pressure acts on the panel 6 which is to be moved in a substantially vertical posture in the example, the panel 6 tilts and turns around the support point (long pin) P for the chain 5 in the direction of the arrow f. In this case, when the steady rest roller 10 abuts on the steady rest guide plate 11 by the tilt rotation of the panel 6, the
Is minimized, for example. The panel 6 whose inclination is suppressed in this way is in a two-point support state by the contact point of the steady rest roller 10 with the steady rest guide plate 11 and the support point P of the panel 6 with the chain 5 meshed with the sprocket 3. In the two-point support state, the steady rest roller 10 rolls on the steady rest guide plate 11 and is guided in a direction substantially parallel to the outer peripheral portion of the sprocket 3, and the panel 6
Is moved at a fixed inclination angle, so that the panel 6
The lower guide roller R ₁ also has a pair of upper and lower panel lower guides 8
It is surely introduced between a and 8b. Accordingly, even when subjected to external pressure F of the wind pressure or the like at the time of the panel 6 extends and prevents the lower guide roller R ₁ of the panel 6 as around to below the lower side of the panel the lower guide 8b as shown in FIG. 7 , Panel 6 caused by the wraparound
It is possible to prevent accidents such as inability to descend and failures. FIG. 5 is a schematic sectional view showing a main part of a panel shutter device according to a second embodiment of the present invention. In the first embodiment, the anti-sway roller 10 is disposed above the long pin (support point) P on the panel 6 and the anti-sway guide plate 11 which can be brought into contact with the anti-sway roller 10 from below is used for the sprocket 3. In the second embodiment, the anti-sway roller 10 is arranged below the long pin (support point) P of the panel 6 and can be brought into contact with the anti-sway roller 10 from below. The steady rest guide plate 11 is arranged.
In the case of the embodiment, the same operation and effect as in the case of the first embodiment can be obtained.

[Effect of the invention]

As described above, according to the present invention, when the panel moving between the pair of left and right sprockets oscillates in the front-rear direction due to wind pressure or the like in the panel feeding process, the anti-sway roller of the panel contacts the anti-sway guide plate. The panel in the restrained state is brought into a two-point support state by the contact point of the steady rest roller with the steady rest guide plate and the panel support point of the chain meshed with the sprocket. Since the steady rest roller rolls on the steady rest guide plate in the point support state and is guided in a direction substantially parallel to the outer peripheral portion of the sprocket, the panel moves at a fixed inclination angle. The roller can be reliably introduced between the pair of upper and lower panel lower guides. Therefore, even if the panel receives an external pressure such as a wind pressure at the time of feeding, the lower guide roller of the panel does not go under between the pair of upper and lower panel lower guides. This has the effect that accidents such as the above can be prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a panel shutter device according to a first embodiment of the present invention, FIG. 2 is a partial front view showing one end of a panel of the device, and FIG. 3 is a left side view of FIG. Figure, 4th
1 is a side view of a steady rest guide plate in FIG. 1, FIG. 5 is a schematic sectional view showing a main part of a panel shutter device according to a second embodiment of the present invention, and FIG. 6 is a conventional panel shutter device. It is a schematic partial sectional view. 1 ... guide rail, 2 ... panel storage box, 3
...... Panel drive sprockets, 4 ... support rails, 5
… Chain, 6… Panel, 8a, 8b… Upper and lower pair of panel lower guides, 10… Anti-sway roller, 11… Anti-sway guide plate, R… Upper guide roller, R ₁ … Lower guide roller .

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of left and right guide rails erected on both sides of a shutter opening / closing opening and having a panel storage box disposed thereon, and a pair of left and right panel drive system sprockets disposed in the panel storage box. A pair of left and right chains meshed with each of the sprockets, and both sides of the chains are rotatably supported by these chains, and the chain is moved up and down by the feed operation of the sprockets by rotating the sprockets. A plurality of panels, an upper guide roller pivotally supported on both upper sides of the panel, and a lower guide roller provided on both lower sides of each panel,
A support rail that is disposed above the panel storage box and rotatably supports an upper guide roller of a panel that sequentially passes through the sprocket when the chain is wound by the sprocket and holds the panels in a parallel state; A panel shutter device comprising: a pair of upper and lower panel lower guides disposed below the panel storage box and for guiding the lower guide roller of the panel when the upper part of the panel moves along the chain meshing region of the sprocket. Anti-sway rollers mounted on both sides of each panel and located above or below a support point of the panel for the chain, and anti-sway rollers for guiding the anti-sway rollers substantially parallel to the outer periphery of the sprocket And a steady rest guide plate arranged so as to contact from below, Panel shutter device in which the steady rest roller guide plate upside stopper is characterized in that the lower guide roller by rolling was set to be induced between the pair of upper and lower panel lower guide.