JP2000145321A - Stably opening and shutting device for expansion/ contraction shutter by separately expansible/ contractible partitioning unit body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly open/shut an expansion/contraction shutter in a state to successively expand and contract expansion units by using an expansion/ contraction mechanism. SOLUTION: A V-shaped extension/contraction link 12 for controlling the extension/contraction of an expansion contraction mechanism is provided to both ends of each of expansible/contractible units 2 of a stutter main body 1, at the same time, a guide roller 16 is provided to the tip end of the upper link, a guide roller 17 is provided to an intersection point of the link, they are led by a guide rail, they are hit against guide blocks 25 and 26 in the vicinity of a storage section to forcibly fold the V-shaped extension/contraction link 12, the guide roller 17 on the front end of the link is hit against a bearing block 28 to forcibly expand, and the units 2 are successively stabilized to expand and contract.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic shutter installed and used in an opening of a building, and more particularly to a device for stably opening and closing a telescopic shutter using individually extensible partition units.

[0002]

2. Description of the Related Art As a telescopic shutter using such a type of individual telescopic partition unit, Japanese Patent Application Laid-Open No. 10-88 of the present inventor has disclosed.
No. 939 is known. According to this, a large number of partition units having a pair of bars in the opening / closing direction and an individual telescopic mechanism for individually expanding and contracting the pair of bars in the opening / closing direction are arranged between the bars adjacent in the opening / closing direction. By connecting and rotatably supporting the pair of bars in the longitudinal direction of the pair of bars in the opening and closing direction in each of the partitioning units, V
A shutter body in which a character enlargement / reduction link is arranged and the expansion and contraction of the individual expansion / contraction mechanism can be individually controlled by the V-shaped enlargement / reduction link; and a guide roller installed in the partition unit of the shutter body is guided and near the storage position. And a guide rail for guiding the opening and closing of the shutter body by regulating the individual expansion and contraction of the partitioning unit by forcibly expanding and contracting the V-shaped link by means of the forcibly expanding and contracting means disposed in the section. In the form shown, a main guide roller is provided on the outer side of the longitudinal end of one of the pair of the partition unit bodies located in the closing direction (the direction preceding when the shutter body is closed). The V-shape fixed to the other of the pair of bars positioned in the opening direction (the direction preceding when the shutter body is opened). A guide roller for the link is disposed at the end of one of the link bars in the closing direction of the contraction link, and the guide rail extends over the entire length of the guide rail for the main guide roller and the storage section for the guide roller of the link. In the vicinity, a guide rail that extends toward the outside in the width direction and that extends over the entire length is disposed.
The forced expanding / contracting means of the character expanding / contracting link is a receiving guide which receives the roller guide inclined along the expanded portion of the guide rail for the guide roller of the link and guides the expansion. .

[0003]

In this case, the partitioning unit of the shutter body is individually expanded and contracted by the V-shaped expansion and contraction link at the position of the forced expansion and contraction means.
The shutter body moves in the opening and closing direction with the partitioning unit extended, and the vertical or horizontal pulling that secures the safety is assured to minimize the possibility of a person's hand being caught in opening and closing the unit. Although it is possible to provide a see-through shutter, in the embodiment shown in the above embodiment, smooth opening and closing cannot always be maintained, and opening and closing may become heavy. Improvement in this respect is desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a telescopic partition unit which can always maintain a smooth opening and closing while maintaining the above-mentioned safety. An object of the present invention is to provide a stable shutter opening and closing device.

[0005]

According to the present invention, according to the present invention, a guide roller guided by a guide rail is installed at an intersection of a tip of a link bar in a closing direction and a pair of link bars in a V-shaped enlargement / reduction link. At the same time, the guide rollers are forced into contact with a pair of guide blocks provided on these guide rails at the same time, and the forced expansion / contraction means for forcibly expanding / contracting the V-shaped expansion / contraction link is made to escape from the roller exit provided on each guide rail. As a result, the V-shaped enlargement / reduction link is forcibly guided in the reduction direction,
The operation of the V-shaped enlargement / reduction link is made smooth, and the opening and closing of the shutter body is made stable and smooth. That is, the invention according to claim 1 is applied to a pair of bars and the pair of bars in the opening and closing direction. A plurality of partitioning units having an individual telescopic mechanism for individually expanding and contracting the crossbars in the opening and closing direction are connected between the crossbars adjacent to each other in the opening and closing direction, and a pair of crossbars in each of the partitioning unit bodies in the opening and closing direction. Are rotatably supported at the longitudinal ends of the
A shutter body in which a character enlargement / reduction link is arranged and the expansion and contraction of the individual expansion / contraction mechanism can be individually controlled by the V-shaped enlargement / reduction link; and a guide roller installed in the partition unit of the shutter body is guided and near the storage position. And a guide rail for guiding the opening and closing of the shutter body by regulating the individual expansion and contraction of the partition unit by forcibly expanding and contracting the V-shaped link by forced expansion and contraction means disposed in the partition unit. A V-shaped expansion and contraction mechanism in which a main guide roller is axially fixed to the other of the pair of bars located in the opening direction outside the longitudinal end of one of the bars located in the closing direction of the pair. A guide roller at the link end is provided at the end of one link bar of the link, and a pair of link bars of the V-shaped enlarged / reduced link is provided. A guide roller at a link intersection is disposed at a point, and at least a guide roller at a link intersection with the leading end of the link is displaced to a front-rear position of a V-shaped enlargement / reduction link. One of the front and rear guide rails having a guide rail extending over the entire length for the guide roller and a roller exit for the guide roller at the end of the link that opens outward in the width direction in the vicinity of the storage section, and the guide roller at the link intersection. A guide exit for the guide roller at the end of the link, and a guide rail for the guide roller at the front end of the link and the other guide rail at the front and rear facing the front and rear; The forced link expansion and contraction means should be It has an inclined guide surface inclined toward the opening direction above each roller exit so as to close the upper end of each guide rail for id rollers, and the vertical separation interval is set to the extension length of the V-shaped telescopic link. A stable opening / closing device for a telescopic shutter, which is constituted by a pair of guide blocks in the vicinity of the storage portion, which is individually expandable and contractible. In order to further smooth the extension of the main body when the main body is closed, the forcible expansion / contraction means of the V-shaped expansion / contraction link is provided below the roller exit of the guide rail for the guide roller at the link intersection of the guide rail. And a receiving guide which guides the guide rail toward the outside in the width direction for receiving the guide roller at the link intersection deviated inward. A stable opening / closing device for a telescopic shutter by an individually telescopic partition unit according to claim 1, wherein the storage unit is provided in addition to the above. The shutter unit is connected to the partitioning unit of the shutter body so as to be rotatable in the front-rear direction so that the shutter body can be freely stored in the storage section in the cross direction. 3. The individually extensible partitioning unit according to claim 2, wherein the hinge unit is hinged, and the guide rail is curved in one of the front and rear directions, and a portion behind the curved portion serves as a storage portion of the shutter body. According to a fourth aspect of the present invention, a smooth opening / closing device for the telescopic shutter is provided. 4. The individual expansion and contraction according to claim 3, wherein the hinge connection by the hinge is performed at an end portion on a curved side in a depth direction of the partitioning unit body of the shutter body so as not to hinder a proper opening and closing. A stable opening / closing device for a telescopic shutter using a free partition unit is provided. In addition to the above, in addition to the above, the shutter body has a thickness in the depth direction and ensures stable and smooth opening / closing. As described above, the partition unit of the shutter body is connected to the pair of bars in the opening and closing direction by a pair of bars in the opening and closing direction, and the pair of bars in the closing direction is connected by a T-shaped connecting bracket. A main guide rod is formed at the front end of a protruding bar which is disposed at the front and rear intermediate position of the connecting bracket and protrudes from the intermediate position of the connecting bracket in the longitudinal direction of the partition unit. A guide roller at the crossing direction of the protruding bar, a guide roller at the link tip and a link intersection at a crossing direction with the guide roller, and a guide rail for the main guide roller at a tip end in the depth direction of the guide rail. 5. A stable opening / closing device for a telescopic shutter with individually extensible partitioning units according to claim 4, wherein a guide rail for a tip and a link intersection is arranged facing the shutter body side of the guide rail. Each of these is a gist of the invention and is a means for solving the above problems.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings, in which A is a telescopic shutter made of, for example, aluminum using an extruded aluminum material and configured for vertical pulling. The shutter A has a pair of bars 3 in the opening / closing direction.
And a plurality of partitioning units 2 each having an individual telescopic mechanism 5 for individually expanding and contracting the pair of bars 3 in the opening / closing direction. The V-shaped enlargement / reduction link 12 is disposed by rotatably supporting the pair of beams 3 in the longitudinal direction at the longitudinal ends of the pair of bars 3 in the opening / closing direction.
The shutter main body 1 enables the individual expansion and contraction of the individual expansion and contraction mechanism 5 to be individually controlled by the guide mechanism, and a guide roller provided on the partition unit 2 of the shutter main body 1 guides and forcibly expands / contracts means disposed near its storage position. The V-shaped enlargement / reduction link 12 is forcibly enlarged / reduced to restrict the individual expansion / contraction of the partitioning unit 2 so that the shutter body 1
And a guide rail 20 for guiding the opening and closing of the vehicle.

In this embodiment, the partition unit 2 constituting the shutter body 1 is formed by connecting a pair of bars 3 in front and rear in the opening and closing direction and connecting a pair of bars 3 in the closing direction to a T-shaped connecting bracket 4. And the individual telescopic mechanisms 5 are arranged at intermediate positions between the front and rear, and are formed.
That is, the crosspiece 3 includes the above-mentioned connecting brackets 4 in which four aluminum extruded members each having a groove guide facing each other in the front-rear direction are arranged, and the longitudinal ends thereof are directed in the depth direction, that is, in the front-rear direction. The pair of front and rear crosspieces are connected by end members and are connected to each other by the individual telescopic mechanism 5 at an intermediate position so as to be able to expand and contract.
The linear or curved link bar is rotatably supported at the intersection of the link bar, and the rolling member or the sliding member installed at the end of each link bar. An X-shaped telescopic link which is slidably engaged with a groove guide of the crosspiece in the longitudinal direction, and one end of a single straight or curved link bar is rotatably supported on the crosspiece 3 and the other end is the same. A single telescopic link which is slidably engaged with the groove guide in the longitudinal direction, and a plurality or a large number of the X-shaped telescopic links and the single telescopic links are arranged in the longitudinal direction, whereby each partition is formed. Each of the unit bodies 2 is configured to be individually expandable and contractible in the opening and closing direction, that is, the vertical direction.

Further, the connection of the partition unit 2 in the shutter body 1 of this embodiment is a hinge connection by a hinge 7 which is rotatable in the front-back direction. In this embodiment, the hinge connection is made at the end of the partitioning unit 2 of the shutter body 1 on the curved side in the depth direction. The shutter body is formed by an aluminum hinge formed by an integral shaft and a bearing formed in the shutter 3. The shutter body of the telescopic shutter A, which closes an opening by connecting the individually extensible partitioning unit bodies 2 in the vertical direction. 1 is formed.

In the present embodiment, the V-shaped enlargement / reduction link 12 has a pair of extension lengths corresponding to the extension length of the partition unit 2 and having a longer closing direction and a shorter opening direction. The link bars 13 and 14 are connected to one end, that is, the partition unit 2.
And a long link bar 13 is rotatably supported at the middle in the longitudinal direction, and a long link bar 13 is connected to the bar 3 located in the closing direction of the partitioning unit, and a short link bar 14 is connected to the bar 3 in the opening direction.
The partitioning unit 2 is rotatably supported at the tip of each crosspiece, and is installed at both ends of each partitioning unit 2 so as to be able to expand and contract so as to form an inverted V shape toward the outside of the end. The expansion and contraction of the partition unit 2 can be individually regulated.

In the shutter body 1 formed in this manner, a main guide roller 15 is provided on the outer side of the longitudinal end of one of the pair of the partition unit bodies 2 located in the closing direction. The V-shaped enlargement / reduction link 12 which is pivotally fixed to the other bar 3 located in the opening direction of the pair.
And a guide roller 16 at the link tip at the intersection of the pair of link bars 13 and 14 in the V-shaped enlargement / reduction link 12, respectively. At least the guide rollers 16, 17 at the link tip and the link intersection are displaced at the front and rear positions of the V-shaped expansion / contraction link 12, and are arranged in a pair in the opening and closing direction. In the present example using the partition unit 2 according to the present invention, the guide rollers 16 and 17 are installed between the crossbars 3 of the partition unit 2 located in the closing direction.
A main guide roller 15 is installed at the tip of a projecting bar projecting from the intermediate position in the longitudinal direction of the partitioning unit 2 in the crossing direction of the projecting bar, that is, in the front-rear direction, and the guide rollers 16, 17 at the link tip and link intersection point. Are installed in the direction crossing the guide roller 15, that is, in the width direction. The guide rail 21 for the main guide roller 15 is provided at the tip of the guide rail 20 in the depth direction.
The guide rails 22 and 23 for the link tip and link intersection are arranged to face the shutter main body 1 side of the guide rail 20 so as to guide the guide rollers.

That is, the guide rail 20 of the present embodiment is formed by bending the guide rail 20 in one of the front and rear directions so that the bent portion forms the storage portion 29 of the shutter body 1.
Reference numeral 0 denotes a guide rail 21 extending over the entire length for the main guide roller 15 and a roller exit 24 opening outward in the width direction in the vicinity of the storage portion 29 for the guide roller 16 at the end of the link. A guide rail 22 for one of the front and rear guide rails 22 and a roller escape port 24 for the guide roller 17 at the link intersection, which opens inward in the width direction in the vicinity of the storage section 29, and for the guide roller 16 at the end of the link. In this example, the guide rail for the main guide roller is provided at the front end in the depth direction of the guide rail, and the guide for the link front end and the link intersection is provided. The rail is arranged so as to face the shutter body side of the guide rail.

In the present embodiment, the guide rail 20 is bent upward in the front-rear direction, in this embodiment, toward the indoor side by fixing the rail member to, for example, an aluminum extruded material or an aluminum extruded material base. The storage section 29 for reducing and storing the shutter body 1 in the horizontal direction intersecting with the guide rail 20 in a rearward direction, in this example, an upper indoor side in this example.
The guide rails 20 are formed, for example, in a C-shaped cross section, and each of the three guide rails 21,
At this time, the guide rail receives the guide rail 21 for the main guide roller 15 and the main guide roller 15 along the bottom wall side of the guide rail 20 along the bottom. The guide roller 16 at the link tip and link intersection is guided so as to guide in the longitudinal direction.
Guide rails 22 and 23 for the front and rear are arranged along the front and rear side walls so as to receive the guide rollers 16 and 17 displaced to the front and rear positions and guide them in the longitudinal direction, respectively. At this time, the guide rail 21 for the main guide roller 15 has a full length of the guide rail 20 which continuously holds and guides the guide roller 15 in a longitudinal direction, while the guide rails 16 and 17 for the link tip and the link intersection point. Guide rails 22,2
Reference numeral 3 denotes a guide roller exit 2 near the curved portion, and in the present example for vertical pulling, below the curved portion.
In the guide rail 22 for the guide roller 16 at the end of the link, toward the curved portion, that is, toward the upper side toward the outside in the width direction, and in the guide rail 23 for the guide roller 17 at the link intersection, in the closing direction, that is, toward the lower side. By turning the guide rollers 16 and 17 in the width direction of the shutter main body 1 so that the guide rollers 16 and 17 can be simultaneously escaped in the opposite direction by turning the shutter body 1 in the width direction and adjusting the interval to the extension length of the V-shaped expansion / contraction link 12. The guide rails 22 and 23 are respectively cut out.

The forced expansion and contraction means of the V-shaped expansion and contraction link 12 is connected to each of the guide rails 20 so as to close the upper ends of the guide rails 22 and 23 for the guide rollers 16 and 17 at the link intersection. Exit 2
4 is provided with a pair of guide blocks 25 and 26 in the vicinity of the storage portion 29 having an inclined guide surface inclined toward the opening direction thereof and having a vertical separation interval corresponding to the extension length of the V-shaped expansion / contraction link 12. In the present embodiment, the forced expansion / contraction means is displaced inward to a position below the roller exit 24 of the guide rail 23 for the guide roller 17 at the link intersection of the guide rail 20 so as to deviate inward. A receiving guide 27 that guides the guide rail 23 toward the outside in the width direction for receiving the guide roller 17 is additionally provided.

That is, the forcible expanding / contracting means of this embodiment is designed to close the upper end of the guide roller exit 24 formed on the guide rails 22 and 23 of the guide rail 20 so as to close the upper end of the guide roller 16 and the guide at the link intersection. For the roller 17, the guide roller exit 24
Is inclined toward the opening direction of the shutter main body 1 by making the positional relationship substantially correspond to the distance between the guide rollers 16 and 17 in the long link bar 13 in the V-shaped expansion / contraction link 12. At the time of opening, each of the guide rollers 16 and 17 is slid against each other by contacting the guide rollers 16 and 17 so as to be tilted and ejected, and a pair of guide blocks 25 and 26 are provided for sequentially reducing and folding the partition unit 2 sequentially. The receiving guide 27 is disposed at the lower end of the roller exit 24 in the guide rail 23 for the guide roller 17 at the link intersection, and is displaced from the guide block 26 forming forced expansion / contraction means. At the set position, in this example, facing the guide rail 20 and its roller exit 2 When the shutter body 1 is closed, the partition unit 2 is subjected to the closing force in the extension direction and the guide roller 16 at the end of the link is guided by the guide block 16 when the shutter body 1 is closed. When the guide roller 17 is not guided (unengaged) on the rail 22, the guide roller 17 at the link intersection is abutted and abutted to receive the guide roller 17, and the guide roller 17 is inclined to the guide rail 23 side so as to be guided and guided. And the guide unit 1 at the link tip and link intersection point is forcibly extended.
6 and 17 are guided to the respective guide rails 22 and 23. At this time, the forcible expansion / contraction means of this embodiment further temporarily holds the guide roller 16 at the link tip in a fixed position, and when the guide roller 17 at the link intersection receives and abuts on the guide block 27, the V-shape is formed. The guide roller 16 at the end of the link is placed and held as a holding member 28 for urging the expansion and contraction link 12 to extend and securely guiding the guide rollers 16 and 17 to the guide rails 22 and 23, respectively. In this example, the guide block 22 is positioned above the roller exit 24 of the guide rail 22, that is, at the upper end, and is displaced from the guide block 25 for reducing and folding, that is, the roller is removed. It is installed on the opening side of the outlet 24 (the depth side of the guide rail).

The opening and closing of the shutter body 1 in the telescopic shutter A described above is performed, for example, electrically or manually.
When opening / closing force, for example, opening force, is applied to the shutter body 1,
The shutter body 1 has its main guide roller 15
And the guide rollers 16 and 17 at the link tip and link intersection in the expanded V-shaped expansion / contraction link 12 advance the guide rail 20 in the opening direction, and the forcible expansion / contraction means by the guide blocks 25 and 26 apply When the guide rollers 16 and 17 at the link tip and the link intersection reach, the guide roller 16 at the link tip is guided in the depth direction of the guide rail 20, and the guide roller 17 at the link intersection is guided in the opposite direction to the guide rail 20. Escape from roller exit 24, V-shaped expansion / contraction link 1
2 is reduced and folded by the compression force, and the X-shaped telescopic link 5 is also reduced and folded in the same manner, and each partitioning unit 2 is successively reduced and folded so as to repeat the above operation. The shutter body 1 is guided by the guide rail 30 of the storage part 29 by the guidance of 15, and is folded and stored in the storage part 29. At this time, in the present example, when the partition unit 2 is sequentially reduced and folded, the hinge 7 of the hinge connection portion is rotated, so that the hinge unit 7 passes through the curved portion and enters the storage portion 29 in the direction crossing the guide rail 20. The shutter body 1 is housed and opened.

On the other hand, when a closing force is applied to the shutter body 1 folded and stored in the storage portion 29, the guide rail 30 of the storage portion 29 advances in the closing direction by the guide of the main guide roller 15, and the forcible force is applied. In a state where the guide roller 16 at the link tip is held by the holding member 28 forming the expanding / contracting means, the partitioning unit 2 starts expanding, and the V-shaped expanding / contracting link 12 starts expanding, and the guide roller at the link intersection point. 17 draws an arc, and reaches the receiving guide 27 which also forms the above-mentioned forced expansion and contraction means, extends the V-shaped expansion and contraction link 12 and is pulled by the closing force to move each of the guide rollers 16 and 17 to its guide rail 22. , 23
, The X-shaped telescopic link 5 is simultaneously extended, and the partitioning unit 2 is sequentially extended so as to repeat the operation. The main guide roller 15, the guide roller 16 at the link tip, and The shutter body 1 is closed by the guide rails 21, 22, and 23 of the guide roller 17 at the link intersection. At this time, in this example, the curved portion is the hinge of the hinge connecting portion as described above. 7 is rotated so that the storage unit 2
9 to the guide rail 20 in the direction intersecting.

In the drawing, reference numeral 8 denotes an end slat of the shutter main body 1, and 9 denotes a motor which is not shown in the present embodiment, and the opening and closing of the shutter main body 1 is electrically driven. The opening / closing wire for opening and closing the shutter body 1 fixed to the end slat 8 so as to completely eliminate the twisting of the partition unit 2 by applying the opening / closing force of 10; Similarly, each of the hoisting pulleys is shown.

Although the illustrated example is as described above, the present invention is applied to a horizontal-drawing shutter in which the shutter body expands and contracts in the left-right direction (width direction) instead of the above-described vertical-drawing elastic shutter. At this time, the guide rail, the shutter body, the relationship between them, and the like are assumed to be such that the guide rails are positioned vertically so as to be turned 90 degrees, and the shutter body is suspended from above. Take the necessary measures, such as changing the direction of the guide rails so that the guide rails do not fall down, in order to prevent the guide rails from dropping. In the same way, a V-shaped expansion / reduction link is installed only on one side above the partition unit, and the forced expansion / reduction The lower guide rail shall guide the steady rest roller installed on the crossbar of each partitioning unit in the opening direction, and shall be configured as a telescopic shutter for horizontal suspension pulling. A pair of single crosspieces, one above and below, without using a pair of crosspieces, and a partitioning unit constituted by an individual telescopic mechanism connected to the above, and adjacent in the opening and closing direction of the partitioning unit. The connection between the crossbars is fixed without using the hinges or by using an integrated crossbar, so that the crossbars can move straight in the opening direction on the opening surface and can be stored in the storage section at the longitudinal end of the guide rail. Instead of using a block such as the above guide block or mounting block,
The guide rail or the rail member used for it shall be processed or bent, or a metal or other plate material shall be fixed,
The individual expansion / contraction mechanism of the partitioning unit is a single telescopic link by the single link bar, and the direction of the adjacent partitioning unit is alternately changed so that the adjacent partitioning units form an X-shape. In carrying out the present invention, including concrete steps, the specific materials and shapes of the partitioning unit body, its individual expansion / contraction mechanism, V-shaped expansion / contraction link, forced expansion / contraction means, guide rail, guide roller, guide rail, guide block, etc. , Structures, their relations, additions to them, etc., can be of various forms without departing from the gist of the invention.

[0019]

The present invention is configured as described above.
According to the first aspect of the present invention, the partitioning unit is moved in the opening and closing direction with the unit extended, and the possibility of a person being caught in the opening and closing of the unit is minimized as much as possible while ensuring safety. A stable opening / closing device for a telescopic shutter using individually expandable and contractible partitioning units that can always maintain a proper opening / closing can be provided. The extension can be made even smoother. According to the third aspect of the present invention, in addition to the above, in addition to the above, the storage portion is installed in a cross shape in the front-rear direction of the opening and the shutter body is provided in the storage portion in the cross direction. According to the fourth aspect of the present invention, the smooth opening and closing of the shutter main body is not hindered by performing smooth passage in the curved portion of the partition unit at this time. It can, in the embodiment described in claim 5, like in addition to the above, it is possible to ensure a smooth opening and closing a stable as well as to have a thickness the shutter body in the depth direction.

[Brief description of the drawings]

FIG. 1 is a front view of a telescopic shutter.

FIG. 2 is a longitudinal sectional view in which details of a telescopic shutter are omitted.

FIG. 3 is a partially omitted longitudinal sectional view of a telescopic shutter.

FIG. 4 is a longitudinal sectional view of a partition unit.

FIG. 5 is a cross-sectional view of a guide rail portion in a state where a V-shaped expansion / contraction link is folded.

FIG. 6 is a cross-sectional view of a guide rail portion in a state where a V-shaped expansion / contraction link is extended.

FIG. 7 is a longitudinal sectional view of an end portion side of a storage section.

FIG. 8 is a front view showing a relationship between a V-shaped enlargement / reduction link and a partition unit.

FIG. 9 is a side view of a V-shaped enlargement / reduction link portion.

[Explanation of symbols]

 A Telescopic shutter 1 Shutter body 2 Partition unit 3 Bar 5 Individual telescopic mechanism 12 V-shaped expansion / contraction link 15 Main guide roller 16 Guide roller at link tip 17 Guide roller at link intersection 20 Guide rail 25 Guide block 26 Guide block 27 Receiving guide 29 storage section

Claims (5)

[Claims] 1. A plurality of partition units each having a pair of bars in the opening / closing direction and an individual telescopic mechanism for individually expanding and contracting the pair of bars in the opening / closing direction, between the crossings adjacent to each other in the opening / closing direction. The V-shaped enlargement / reduction link is arranged by connecting and rotatably supporting the longitudinal ends of the pair of bars in the opening / closing direction of each partitioning unit body.
A shutter main body in which the expansion and contraction of the individual expansion and contraction mechanism can be individually controlled by a character expansion and contraction link, and a guide roller installed in the partition unit of the shutter main body, and a forcible expansion and contraction means arranged in the vicinity of the storage position of the shutter main body. And a guide rail for guiding the opening and closing of the shutter body by regulating the individual expansion and contraction of the partition unit by forcibly expanding and contracting the V-shaped expansion and contraction link. A leading end of one of the link bars of the V-shaped expansion / contraction link, in which a main guide roller is axially fixed to the other of the pair of bars located in the opening direction outside the longitudinal end of one of the bars. A guide roller at the link tip is provided at the intersection of a pair of link bars in the V-shaped enlarged / reduced link. And at least one of the guide rollers at the point of intersection of the link and the link intersection is displaced to the front and rear positions of the V-shaped enlargement / reduction link. A front and rear guide rail having a roller exit opening outwardly in the width direction in the vicinity of the storage section for the guide rail extending over the link and the guide roller at the tip of the link, and the storage section for the guide roller at the link intersection. In the vicinity, there is a roller exit opening opening inward in the width direction, and a guide rail for the guide roller at the end of the link and the other front and rear guide rail opposed to the front and rear are arranged, and the forced expansion and contraction means for the V-shaped expansion and contraction link is provided. , Each guide for the guide roller at the link tip and link intersection in the above guide rail The storage portion having an inclined guide surface inclined toward the opening direction above each roller exit so as to close the upper end of the roller, and having a vertical separation interval corresponding to the extension length of the V-shaped telescopic link. A stable opening / closing device for an extensible shutter using individually extensible partitioning units, comprising a pair of neighboring guide blocks. 2. The forcible expansion / contraction means of the V-shaped expansion / reduction link,
The guide rail for the guide roller at the link intersection at the link intersection on the guide rail, which is deflected inward and receives the guide roller at the link intersection at a position below the roller exit, and a guide guided to the guide rail toward the outside in the width direction. The stable opening / closing device for a telescopic shutter according to claim 1, further comprising a guide. 3. The shutter unit is connected to the partition unit by a hinge that is rotatable in the front-rear direction, and the guide rail is bent in one of the front-rear directions. 3. The stable opening / closing device for a telescopic shutter according to claim 2, wherein the telescopic shutter is a storage part. 4. The telescopic unit according to claim 3, wherein the hinge connection by the hinge is performed at an end portion of the partition unit of the shutter body that is curved in the depth direction. Stable shutter opening and closing device. 5. The shutter unit of the shutter body,
A pair of bars in the opening / closing direction are paired back and forth, and a pair of bars in the closing direction are connected by a T-shaped connecting bracket. A main guide roller is installed at the tip of a projecting bar projecting from the position in the longitudinal direction of the partitioning unit body in a direction intersecting the projecting bar, and a guide roller at the link tip and a link intersection is installed in a direction intersecting the guide roller. The guide rail for a main guide roller is disposed at a distal end in the depth direction of the guide rail, and the guide rail for a link distal end and a link intersection is disposed to face the shutter body side of the guide rail. A stable opening / closing device for a telescopic shutter using the individual telescopic partition unit described in the above.