CN1279334A

CN1279334A - Sheet shutter device

Info

Publication number: CN1279334A
Application number: CN00102309A
Authority: CN
Inventors: 岩崎博; 古野裕二; 坂本克广
Original assignee: Sanwa Shutter Corp
Current assignee: Sanwa Rolling
Priority date: 1999-06-29
Filing date: 2000-02-15
Publication date: 2001-01-10
Anticipated expiration: 2020-02-15
Also published as: KR20010006606A; JP2001012174A; KR100687371B1; TW421694B; SG113384A1; CN1138053C; JP3554917B2

Abstract

To return an end part of a shutter curtain slipping out of a guide rail when a load exceeding a predetermined value acts on the shutter curtain into the guide rail easily. In a sheet shutter in which a guide block slips out of a guide rail when a load exceeding a predetermined value acts on a shutter curtain, the guide block is provided with a rear part facing the direction in which it leaves an opening part of a building, the rear part extends in the vertical direction and has a tapered protruding cross sectional shape, and the guide block is pressed into the guide rail through the rear part when the guide block comes off the guide rail.

Description

Sheet shutter device

The present invention relates to a kind of sheet shutter device, more particularly, relate to the sheet shutter device that makes the end getaway of sheet material when a kind of load on acting on sheet material surpasses predetermined value.

Sheet shutter device is used for by using sheet shutter to come the opening and closing architectural openings.If the end of roller shutter is easy to getaway under the state that opening all seals, it is skimble-skamble that roller blind device then is installed.Therefore, in some sheet shutter device, form the bonding part, and this bonding part is slidably engaged in the guide rail, makes the two ends of roller shutter can getaway under the surface pressing of expection in the left-hand end of roller shutter and right-hand end.

But, because the intensity of sheet shutter is less than the intensity of steel roller shutter or similar roller shutter, so, then can produce following problems if the power that acts on the roller shutter surpasses the wind pressure value that it can bear.Force the bonding part and the guide rail that are formed on the roller shutter side to break away from, thereby can damage the side of roller shutter.In another case, roller shutter is bent to the degree that guide rail is caused damage.

The present invention is intended to address the above problem, and its objective is provides a kind of sheet shutter device, and it can prevent to damage the end and the guide rail of roller shutter, even the load on acting on roller shutter also is like this when surpassing predetermined value.

Another object of the present invention provides a kind of roller shutter, and wherein the end of roller shutter can withstand satisfactorily and act on the surface pressing on the roller shutter and make it can getaway under normal operating condition.

A further object of the invention provides a kind of sheet shutter device, when wherein the load on acting on roller shutter surpasses predetermined value (for example, when the strong bump of part is applied on the roller shutter), allows the end getaway of roller shutter.

A further object of the present invention provides a kind of sheet shutter device, wherein when the end of roller shutter since the load that acts on the roller shutter surpass predetermined value and behind the getaway, the end can be got back in the guide rail at an easy rate.

The present invention's technological means for achieving the above object is: sheet shutter device comprises a sheet roller shutter; A plurality of guide pads, they are arranged on relative left end and right-hand member on the roller shutter width, and roller shutter has at interval in vertical direction; Also comprise guide rail, they vertically are arranged on the left side and the right side of architectural openings; Wherein, under normal condition, guide pad can move both vertically in guide rail, and guide rail has elasticity, and when the load on acting on roller shutter surpassed predetermined value, guide rail deformed, and the degree of distortion can make the guide pad getaway.

Use said structure can prevent the end damage of roller shutter, and can prevent that also guide rail from damaging.

In addition, in above-mentioned sheet shutter device of the present invention, each guide pad all has a composition surface near the guide rail inwall, like this, utilizes engaging between this composition surface and the guide rail, can bear the surface pressing that acts on the roller shutter.

In addition, in above-mentioned sheet shutter device, the upper and lower of each guide pad composition surface can have some crooked inclined surfaces, thereby, when the load on acting on roller shutter surpasses predetermined value, the easier getaway of guide pad.

In addition, in above-mentioned sheet shutter device, described each guide pad form a vertically extending rear portion with described composition surface facing surfaces, this rear portion has the projection section of an inclination, thereby the guide pad that has broken away from guide rail can be back in the guide rail from its rear portion.For this structure, the guide pad that has broken away from guide rail can be back in the guide rail.

In addition, in above-mentioned sheet shutter device, the guide surface of inclination can be formed on the opening part of the gathering sill of guide rail, like this, when utilizing the guide surface that tilts to be directed, just the guide pad that has broken away from guide rail can be back in the guide rail.

One embodiment of the present of invention are described below with reference to accompanying drawings.

Fig. 1 is the simple elevation that expression is in the sheet shutter device under the full open state;

Fig. 2 is the lateral view that is in the sheet shutter device under the installment state;

Fig. 3 is a sectional view of expressing the guide assembly of upper guide member in detail;

Fig. 4 is a sectional view of expressing the guide assembly of guide rail in detail;

Fig. 5 is the sectional view of the local abridged guide assembly of expression seal and lining nut arrangements;

Fig. 6 (a) is the sectional view of guide rail, and Fig. 6 (b) is the sectional view of guide rail fixing element;

Fig. 7 is the side-looking and the elevation of guide rail fixing element.

Fig. 8 represents upper guide member; Fig. 8 (a) is a top plan view, and Fig. 8 (b) is an elevation, and Fig. 8 (c) is a lateral view, and Fig. 8 (d) is a upward view;

Fig. 9 represents guide assembly; Fig. 9 (a) is an elevation, and Fig. 9 (b) is a lateral view.

Figure 10 is the elevation of roller shutter;

Figure 11 represents guide pad; Figure 11 (a) is a lateral view; Figure 11 (b) is a rear elevation; Figure 11 (c) is the lateral view of opposition side, and Figure 11 (d) is an elevation, and Figure 11 (e) is a horizontal cross, and Figure 11 (f) is a vertical sectional view, and Figure 11 (g) is a top plan view.

Figure 12 represents the bottom of roller shutter; Figure 12 (a) is a lateral view, and Figure 12 (b) is a distolateral elevation, and Figure 12 (c) is the general front view of the bottom of roller shutter.

Figure 13 represents the bottom counterweight; Figure 13 (a) is the elevation of partly cut-away, and Figure 13 (b) is a top plan view.

Figure 14 is the partial elevation view of sheet shutter device, and it expresses the position of guide pad under the complete roll-up state of roller shutter.

Figure 15 represents to be used for guide pad is pushed another embodiment of the device in the guide rail, and its middle guide takes on a different character.

One embodiment of the present of invention are described below with reference to accompanying drawings.Fig. 1 is the simple general front view that expression is in the sheet shutter device under the full open state, and Fig. 2 is the view that is in the sheet shutter device under the installment state of looking from the side.Tack-up spool 3 and a roller shutter 4 that links to each other with tack-up spool 3 that the roller shutter case 2, one that sheet shutter device comprises a pair of guide assembly 1 that is vertically set on the left and right sides of architectural openings, be arranged on the architectural openings upper end is arranged in the roller shutter case 2 and extends along the width of opening.

End is housed in the gathering sill of guide assembly 1 about roller shutter 4.When switching device of operation to open or when closing roller blind device, roller shutter 4 moves both vertically, the left end and the right-hand member of roller shutter are guided by gathering sill simultaneously.Utilization moves both vertically, and makes roller shutter 4 roll or launch from tack-up spool 3 around tack-up spool 3.This general structure of sheet shutter device is known by people in the prior art.

The structure of guide assembly is described with reference to Fig. 3 to Fig. 9 below.Guide assembly 1 comprises guide rail 5, guide rail fixing element 6, first way-cover 7, second way-cover 8 and guide rail seal 10.

Guide rail 5 is vertically extending elongate member.Shown in Fig. 4 and Fig. 6 (a), guide rail 5 comprises

relative sidewall

5a, 5b; From sidewall 5a, the antetheca 5d that the end of 5b extends along relative direction forms a line of rabbet joint 5c who vertically extends on the antetheca; Connect sidewall 5a, the rear wall 5e of the other end of 5b; And the pieceable rib 5f that stretches out from rear wall 5e.In guide rail 5, by

wall

5a, 5b, the cross section in the space that 5d and 5e surround is roughly rectangular.Guide rail 5 is to use the rubber-like material, makes as resin.When the power that applies surpassed predetermined numerical value, guide rail 5 was deformed to the degree of the width increase that makes line of rabbet joint 5c.In addition, the thickness of antetheca 5d is greater than sidewall 5a, the thickness of 5b.

Guide rail fixing element 6 also is the elongate member of vertically extending.Shown in Fig. 4 and Fig. 6 (b), guide rail fixing element 6 has relative sidewall 6a, 6b be connected sidewall 6a, the connecting wall 6c of the mid portion of 6b.Therefore, guide rail fixing element 6 has the cross section that roughly is H shape.Pieceable receiving unit 6d is formed on the side of connecting wall 6c and extends along its length, but the receiving unit 6e (this bolt is parts of a spring assembly) that is used to receive the head of bolt one end is formed on the opposite side of connecting wall 6c and extends along its length.But the engage ribs 5f of guide rail 5 is contained in the pieceable receiving unit 6d of guide rail fixing element 6, makes it and can slide in the longitudinal direction.In this embodiment, guide rail fixing element 6 is to be made by the aluminium bar of a moulding.

First way-cover 7 and second way-cover 8 all are the elongate member of vertically extending.The width wall 7b that first way-cover 7 has the thickness wall 7a that extends along thickness direction, extends from the end broad ways of thickness wall 7a, and the elongated end and the L-shaped end wall 7c of its cross section that are formed on width wall 7b.The width wall 8b that second way-cover 8 has the thickness wall 8a that extends along thickness direction, extends from the end broad ways of thickness wall 8a, and the elongated end and the L-shaped end wall 8c of its cross section that are formed on width wall 8b.Top at first way-cover 7 and second way-cover 8 is cut

end wall

7c, 8c obliquely.

A plurality of guide rail installed parts 9 vertically are fixed on the building main body compartment of terrain.First way-cover 7 and second way-cover 8 are bearing in the overall structure by guide rail installed part 9.As shown in Figure 7, each guide rail installed part 9 all has along the thickness wall 9a of thickness direction extension, passes through the width wall 9b of the two ends formation of bent thickness wall 9a in opposite direction, 9c, and two hyoplastron 9d that extend with respect to width wall 9b back span.The cable that dots out in plan view passes the space that is surrounded by the second way-cover 8b and hyoplastron 9d.The bundling belt that utilization matches with hyoplastron 9d can be integrated a branch of with cable.

The thickness wall 7a of first way-cover 7 is fixed on the thickness wall 9a of guide rail installed part 9, and the width wall 8b of second way-cover 8 is fixed on the width wall 9c of guide rail installed part 9.Guide rail installed part 9 be a kind of short parts and vertically the compartment of terrain a plurality of this guide rail installed parts are set.In addition, on the thickness wall 9a of guide rail installed part 9, form a receiver hole 9e.Spring assembly 11 is connected with guide rail fixing element 6 and passes receiver hole 9e.

Spring assembly 11 comprises that a bolt 11a, one are arranged on the head 11b of bolt 11a one end, a nut 11c who is arranged on the bolt 11a other end and a spring 11d who is coiled on the bolt 11a.Have receiver hole 7d on the guide rail installed part 9 and first way-cover 7,9e, bolt 11a are inserted through this two holes.But the head 11b that passes the bolt 11a of the guide rail installed part 9 and first way-cover 7 is contained in the receiving unit 6e of guide rail fixing element 6.Bolt 11a is inserted in first way-cover 7, leaves certain clearance simultaneously between bolt 11a and receiver hole 7d.

The diameter of receiver hole 7d is greater than the external diameter of bolt 11a, so that leave small gap between them, but the diameter of this receiver hole 7d is less than the external diameter of spring 11d.The diameter of receiver hole 9e is greater than the external diameter of nut 11c.In addition, spring 11d is pressed on the thickness wall 7a of first way-cover 7, thereby guide rail (embodiment shown in the figure is guide rail fixing element 6) is contacted with way-cover (being first way-cover 7 in the illustrated embodiment) with certain pressure.Unscrew screw and remove the just removable lower spring assembly 11 of first way-cover 7.In Fig. 4, label 20 is represented the building main body, and 21 represent fastening bolt, and 22 represent polished surface.Even second way-cover 8 (hereinafter will describe) is embedded in the polished surface 22 (representing with double dot dash line), also can keep in repair or carry out the work of other necessity in Fig. 4.

Seal 10 is fixed on the guide rail support spare that is made of first way-cover 7, second way-cover 8 and guide rail installed part 9, and the section of this guide rail support spare roughly is C font or flute profile.In illustrated first embodiment, seal 10 is the bar parts that vertically extend, and remains between first way-cover 7 and the guide rail fixing element 6.In order to be described in more detail, ask for an interview shown in Figure 5ly, lining nut 10a is assemblied in bolt 11a goes up and be between the seal 10 and first way-cover 7.Specifically, lining nut 10a matches with the double-sided belt (not shown), so that seal 10 contacts with the rear surface of guide rail fixing element 6, thereby makes their integrators.The left end that keeps making seal 10 and right-hand member remain near or contact the inwall of first way-cover 7 and the inwall of second way-cover 8 or guide rail installed part 9 slidably.The double-sided belt (not shown) is placed between seal 10 and the guide rail fixing element 6.In illustrated embodiment, because the transverse edge of seal 10 is in by end wall 7c, the position that 8c surrounds is so can obtain satisfied closed state.

Last guide 12 is connected the upper end of guide rail 5.Last guide 12 is the short parts that vertically extend.As shown in Figure 8, last guide 12 has mutual opposed sidewall 12a, 12b, from sidewall 12a, the end of 12b along relative direction extend and form betwixt a vertically extending line of rabbet joint 12c antetheca 12d, connect sidewall 12a, but the rear wall 12e of the 12b other end and the engage ribs 12f that stretches out from rear wall 12e.Last guide 12 is to use elastomeric material, makes as resin.When the power that applies surpassed pre-sizing, last guide 12 was deformed to the degree of the width increase that makes line of rabbet joint 12c.Therefore, guide 12 can have the inhibition anti noise to use resin to constitute upward.

Last guide 12 has the section configuration bottom identical substantially with guide rail 5, and extend and expansion gradually towards upper end side this bottom.Specifically, about go up guide 12 relative antetheca 12d extend to the top from bottom, to tilt towards the close mutually gradually direction (promptly inside) of antetheca 12d along the width of architectural openings.Because this structure, when roller shutter 4 when full-gear descends, all other guide pads 13 that are positioned at guide pad 13 tops bottom can both be directed into guide with satisfactory way.Sidewall 12a, 12b extends to upside from downside, so that expansion gradually, and their outer wall surface is defined as an inclined surface.Rear wall 12e to the upside vertical extent, and has a top of stretching out obliquely backwards from downside.The upper end of guide rail 5 is assembled to the lower end of guide 12.The sidewall 12a of last guide 12, the 12b bottom tilts, so that sidewall 12a, the step minimum between the upper end wall surface of the bottom of 12b and corresponding guide rail 5.Because sidewall 12a, the outer wall surface of 12b is as the guide surface of the guide pad 13 that has broken away from guide rail 5, thus sidewall 12a, 12b in the connecting portion office of outer wall surface without any step or projection, so that can guide guide pad 13 smoothly.

Last guide 12 and guide rail 5 interconnect according to the mode of following exquisiteness design.At first, when guide 12 is gone up in the insertion of the upper end of guide rail 5, keep at grade mutually between the inner wall surface of the inner wall surface of guide rail 5 and last guide 12.This structure can make guide pad 13 move both vertically in an ideal way, thereby can carry out the operation of opening and closing stably.Therefore, fitting recess 12g is formed on the lower end of guide 12, and the upper end of the antetheca 5d of guide rail is cut open.When the upper end of guide rail 5 is connected to guide 12, the sidewall 5a of guide rail 5, the upper end of 5b is assembled in the fitting recess 12g.This structure can make guide rail 5 follow guide 12 distortion, thereby line of rabbet joint 5c is also broadened as line of rabbet joint 12c.In addition, the pieceable rib 12f of last guide 12 is received among the pieceable receiving unit 6d of guide rail fixing element 6.Therefore, but by the lower end that will go up guide 12 be assembled to guide rail 5 the upper end and with

engage ribs

12f, 5f is sliding engaged in the pieceable receiving unit 6d, can make guide 12, guide rail 5 and guide rail fixing element 6 be combined into an overall structure.

The structure of roller shutter will be described below.Roller shutter 4 comprises that a lamellar body 4a and one vertically extend and be welded on the strip dististyle 4b on two opposed edges of lamellar body 4a width.Lamellar body 4a and dististyle 4b all be with vinyl chloride resin as main material, polyester is made as core.Core is blended in density than in the higher dististyle 4b of lamellar body 4a, so, the intensity height of the strength ratio lamellar body 4a of dististyle 4b.It may be noted that in this embodiment dististyle 4b is lower than the thinner intensity of lamellar body 4a, and pleat folding concentrates on all on the dististyle 4b, and lamellar body 4a is not easy the pleat folding.In addition, the edge 4c of dististyle 4b has dual structure and is easy to welding, thereby can guarantee that guide pad 13 (below will describe) is more fixing.

A plurality of guide pads 13 vertically are fixed at regular intervals the opposed end (being the edge 4c that has dual structure and be easy to weld in the present embodiment) on the width of roller shutter 4.Each guide pad 13 all has relative sidewall 13a, 13b.One end of guide pad 13 is openings, and line of rabbet joint 13c is formed on opposing sidewalls 13a, between the 13b, in order to receive an end of roller shutter 4.With

relative sidewall

13a, 13b fuses by the rear portion 13d that is positioned at the other end, and this rear portion 13d has crooked outer surface.In addition, rear portion 13d tilts up and down from the middle of its short transverse.At sidewall 13a, the end face of 13b one end is the plane surface 13e that vertically extends.Curved surface 13f extends to sidewall 13a from the upper and lower end parts (corresponding to composition surface of the present invention) of plane surface 13e, the upper and lower end face of 13b, and sidewall 13a, and the outer turning of the upper and lower end face of 13b is inclined surface 13g.In addition, at sidewall 13a, the interior turning of the upper and lower end face of 13b and line of rabbet joint 13c the same side is inclined surface 13j.This structure helps sheet material to insert line of rabbet joint 13c and can prevent that sheet material from damaging.

The receiver hole that is used to receive the receiver hole 13i of screw and is used to receive little plug-in unit 13h relatively is formed on sidewall 13a respectively, on the 13b.The end of roller shutter 4 (being the edge of dististyle 4b) is inserted in sidewall 13a, between the 13b, and is fixed by screw.Guide pad 13 is flat generally, but its thickness is greater than the width of the line of rabbet joint 5c of guide rail 5.

Little plug-in unit 13h is embedded on the more inner a little position of sidewall 13b external surface.When the end of little plug-in unit 13h is exposed to the external surface of sidewall 13b, the end of little plug-in unit 13h indicates the degree of wear of guide pad 13, thereby can be used for determining the time that guide pad 13 should change (for example, contact with the inwall of guide rail 5 and send unusual sound) according to the little plug-in unit 13h that exposes.Similar with it, be screwed into screw head in the little plug-in unit 13h and be positioned on the inner a little position of the external surface of sidewall 13a, when screw head was exposed to the external surface of sidewall 13a, the user can know the degree of wear of guide pad 13.In addition, line of rabbet joint 13c entrance side width be a bit larger tham the most inboard width, like this, the easier insertion line of rabbet joint of sheet material, and after sheet material was fixing with screw, sidewall 13a, the inner surface of 13b were just parallel with sheet material.Therefore, sidewall 13a, the inner surface of 13b contacts with sheet material pressure equably, thereby makes sheet material not fragile.

Guide pad 13 is fixed on two opposed ends on the width of roller shutter 4 in the vertical direction compartment of terrain.In the lower end of roller shutter 4 each side, two guide pads 13 are set closely mutually also vertically.Because the movement travel of the lower end of roller shutter 4 is the longest, and the most easy to wear, so in two adjacent guide pads 13 can act on the surface pressing on each guide pad 13 effectively and can reduce guide pad with reduction the wear extent of fixing on this part.

On the top of roller shutter 4, seal 14 is arranged in the scope of width, and when roller shutter 4 is closed fully, and it is on the lintel 19 corresponding positions with buildings.Seal 14 usefulness are made with dististyle 4b identical materials, and begin protuberance from the surface of lamellar body 4a, and the degree of protuberance can make seal 14 contact with lintel 19, thereby can keep closed state.Therefore, seal is arranged on the lintel side, and always keeps contacting with roller shutter 4 when roller shutter 4 is opened or closed.In this embodiment, seal is arranged on the sheet material side, and only just contacts with lintel 19 when roller shutter 4 is closed fully.

Welding together after edge folds back bottom of roller shutter 4, thus a bag shape part 15 formed in the lower end of roller shutter 4.Bottom counterweight 16 is positioned at bag opposite end of shape part 15 widths.Owing to be arranged on the bottom counterweight 16 of left and right end portions, make roller shutter 4 can roll and make sheet material to be difficult for fold equably.Each bottom counterweight 16 all is to fill many lead button 16b (diameter of the lead button of smaller piece is 2-3mm order of magnitude) to constitute in Nylon Bag 16a.Fill the bag 16a of lead button 16b by use, can provide compliance stronger counterweight in the ordinary course of things, and can absorb owing to impinge upon impact on an obstruction or the similar object.

In bag shape part 15, also be provided with urethane pipe 17, about this pipe is in the bottom counterweight 16 between.Urethane pipe 17 is used to make the lower end of roller shutter 4 to keep the form of sealing plate.In addition, urethane pipe 17 moves towards the middle part to prevent bottom counterweight 16 broad ways also as spacer.Urethane pipe 17 can be constituted or is made of a plurality of parts that are linked in sequence along its length by single parts.In addition, bottom sheet 18 is welded on the bottom of roller shutter 4, so that bag shape part 15 is positioned at bottom sheet 18, and is surrounded by sheet material.

In having the sheet shutter device of said structure, when roller blind device is opened or closed,, guide the guide pad 13 at the two ends, the left and right sides that are arranged on roller shutter 4 by the groove of guide rail 5 along with moving up and down of roller shutter 4.If act on the surface pressing on the roller shutter 4, for example under the state of closing architectural openings fully, the plane surface 13e that is arranged on the guide pad 13 at two ends, roller shutter 4 left and right sides nestles up the antetheca 5d of guide rail 5, thereby this plane surface can bear the surface pressing that applies thereon.

Guide rail 5 can not only move along the width of architectural openings, can also be with respect to architectural openings by spring assembly 11 swings.Therefore, be subjected to wind or similarly effect and when crooked, guide rail 5 can be followed the motion of roller shutter 4 and be moved when roller shutter 4.Like this, even when forcing roller shutter 4 bendings, the plane surface 13e of guide pad 13 also can abut against on the whole antetheca 5d of guide rail 5, thereby, under equally distributed resistance, can prevent that roller shutter 4 breaks away from from guide rail 5.In addition, owing between seal 10 and guide rail fixing element 6, be provided with the double-sided belt (not shown), so, also can match and keep closed state with lining nut 10a even follow roller shutter 4 when moving at guide rail 5.

For example, because guide rail 5 and last guide 12 usefulness rubber-like resins make, thus if object strikes roller shutter 4 is arranged, all can force line of rabbet joint 5c or 12c to broaden, thereby make the guide pad 13 disengaging lines of rabbet joint of roller shutter 4 ends.So just, make roller shutter 4 or guide rail 5 avoid being damaged.Particularly when object clashed into roller shutter 4 strongly, sheet material was subjected to local big impact.In this case, the last lower inclined surface 13g of guide pad 13 contacts with the inner wall surface of the antetheca 5d of guide rail 5, thereby and makes guide pad 13 easier getaways 5.Because the rear surface 13d of guide pad 13 is curved surfaces, so, can push backward in the guide rail 5 with the guide pad 13 that hand will break away from guide rail 5.Therefore, as shown in Figure 4, between the rear wall 5d of the rear surface of guide pad 13 13d and guide rail 5, leave predetermined gap.Because this predetermined gap is arranged, guide pad 13 is tilted in the groove of guide rail 5, like this, inclined surface 13g contacts with the inner wall surface of antetheca 5d.This just makes guide pad 13 easier getaways 5.

Even under the situation of a plurality of guide pad 13 getaways 5, guide pad 13 also can descend well and come back in the guide rail 5, and this needs guide pad 13 is bottom pushed in the guide rail 5, rolls roller shutter 4, and roller shutter 4 is descended by last guide 12.In this case, all along the sidewall 5a of guide rail 5, the outer wall surface of 5b reaches the sidewall 12a that goes up guide 12 to the guide pad 13 of disengaging except nethermost guide pad 13, and the outer wall surface of 12b moves upward.But, because these outer wall surface are level and smooth continuous surfaces, so guide pad 13 can not form any step or projection.

Now with reference to Figure 14 above-mentioned feature is described.Under the state that roller shutter 4 is rolled fully, nethermost guide pad 13 is in the guide 12, and another guide pad adjacent with this nethermost guide pad 13 be positioned at guide 12 the top and with last 12 vertical separating of guide.Therefore, roller shutter 4 descends from this state, and all guide pads 13 all descend under the guiding of last guide 12.In illustrated embodiment, two guide pads 13 are adjacent to be arranged on the lower end of roller shutter 4.Because this structure, when the nethermost guide pad 13 that will break away from guide rail 5 with hand pushed guide rail 5 backward, after this roller shutter 4 easier maintenance plumbness can be rolled more smoothly.

Figure 15 represents guide pad to be pushed smoothly the another kind of device of guide rail.Guide pad 130 has identical basic structure with guide pad 13 and guide rail 5 respectively with guide rail 50, and difference be the outer wall surface of the antetheca 50d of guide rail 50 is the inclined surface of assembling to the groove of guide rail 50 gradually.It may be noted that guide pad 130 has flat rear surface in Figure 15, this rear surface of guide pad 130 can be crooked as the rear surface of guide pad 13.

Claims

1. a sheet shutter device is characterized in that, it comprises a sheet roller shutter; A plurality of guide pads, they are arranged on relative left end and right-hand member on the described roller shutter width, and have in vertical direction at interval; And guide rail, they vertically are arranged on the left side and the right side of architectural openings, wherein, under normal condition, described guide pad can move both vertically in guide rail, and described guide rail has elasticity, when the load on acting on described roller shutter surpasses predetermined value, described guide rail deforms, and the degree of distortion can make described guide pad break away from described guide rail.

2. according to the sheet shutter device of claim 1, it is characterized in that described each guide pad all has a composition surface near described guide rail inwall, like this, utilize the joint of described guide rail, can bear the surface pressing that acts on the described roller shutter described composition surface.

3. according to the sheet shutter device of claim 2, it is characterized in that the upper and lower of described each guide pad composition surface has crooked inclined surface, thereby, when the load on acting on described roller shutter surpasses predetermined value, the described guide rail of the easier disengaging of described guide pad.

4. according to claim 1,2 or 3 sheet shutter device, it is characterized in that, described each guide pad form a vertically extending rear portion with described composition surface facing surfaces, it has the projection section of an inclination, thereby the described guide pad that has broken away from described guide rail can be back in the described guide rail from its rear portion.

5. according to claim 1,2,3 or 4 sheet shutter device, it is characterized in that, the guide surface that tilts is formed on the opening part of the gathering sill of described guide rail, thereby when utilizing the guide surface that tilts to be directed, the described guide pad that has broken away from described guide rail can be back in the described guide rail.