JP4576202B2 - Roll screen joint structure - Google Patents

Description

  The present invention relates to a roll screen joint structure for hermetically joining adjacent screens.

  When a roll-movable fire-preventing wall or a long-wall hanging wall or section is formed by a fire- and smoke-proof screen shutter, when the screen is wound around a single long shaft, the weight of the shaft itself The shaft bends due to the weight of the screen, and the feeding and winding operations become difficult. For this reason, it is necessary to divide the shaft so that both ends of the shaft are supported by the bearing bracket to form a plurality of screens. However, when a plurality of screens are simply arranged, there is a space between adjacent screens.

Therefore, conventionally, a fixed or movable guide rail is arranged between the screens, or one auxiliary screen that overlaps the screen adjacent to the joint portion is applied and simultaneously lowered to fill the gap between the screens. (See Patent Documents 1 and 2).
JP 10-292275 A JP 10-337337 A

  However, when the guide rail is provided between the screens, if it is a fixed type, it is inferior in aesthetics and is not easy to use in everyday space. In the case of the movable type, the mechanism becomes complicated and problems such as cost increase arise. Moreover, in the case of the joint by an auxiliary screen, although the said fault was eliminated, in terms of airtightness, it was inadequate and it was inferior to smoke shielding performance.

  The present invention is intended to solve the above-described problems. The object of the present invention is to add an inexpensive and simple configuration so that adjacent screens can be automatically joined and wound up in the extended state. The present invention provides a roll screen joint structure in which the joint is released in a state and wound on each shaft individually.

In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that at least a pair of screens wound around a rotatable shaft and fed and wound up with their edges approaching each other by the rotational movement of the shaft. In the roll screen joint structure provided,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately ,
The shafts are arranged at a predetermined crossing angle;
When the fasteners are engaged with each other by the slider and are disengaged, the left and right engagement elements engaged by the slider are in contact with the screen in the vicinity of the left and right of the slider so that the shape thereof is aligned. A screen correction member is provided to correct
The screen straightening member has one end engaged with the slider and the other end engaged with a mounting member fixed to a stationary member such as a guide plate,
A guide metal fitting is provided at the front end of the support column, and the guide metal fitting is urged toward the screen so that an angle formed by a straight line connecting the guide metal fitting and the slider is 120 ° to 180 °. An arm for correcting the shape of the roll screen in the range of °,
The slider and the support column are engaged via a flexible member such as a chain or a spring so that the slider can move following the movement of the left and right screens. .

  Further, the intersecting portions of the shafts may be connected via rotation transmission means, and the rotational force of one shaft may be transmitted to the other shaft.

Further, in a roll screen joint structure provided with at least a pair of screens wound around a rotatable shaft and fed and wound in a state in which the edges thereof are close to each other by the rotation of the shaft,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately,
The shafts are arranged at a predetermined crossing angle;
When the fasteners are engaged with each other by the slider and are disengaged, the left and right engagement elements engaged by the slider are in contact with the screen in the vicinity of the left and right of the slider so that the shape thereof is aligned. A screen correction member is provided to correct
The screen straightening member has one end engaged with the slider and the other end engaged with a mounting member fixed to a stationary member such as a guide plate,
A guide metal fitting is provided at the front end of the support column, and the guide metal fitting is urged toward the screen so that an angle formed by a straight line connecting the guide metal fitting and the slider is 120 ° to 180 °. An arm for correcting the shape of the roll screen in the range of °,
The attachment member and the support column are engaged via a flexible member such as a chain or a spring so that the slider and the guide fitting can move following the movement of the left and right screens. It is characterized by that.

Moreover, it is good also as providing the fastener cover which is provided along each joining edge part of the said adjacent screen, and when the right and left said screen engages, the open ends mutually contact | abut closely.

Further, in a roll screen joint structure provided with at least a pair of screens wound around a rotatable shaft and fed and wound in a state in which the edges thereof are close to each other by the rotation of the shaft,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately,
The shafts are arranged at a predetermined crossing angle;
In the area inside and / or outside the corner portion where each shaft forms a predetermined crossing angle,
A corner regulating device provided with a guide rail for following the slider and horizontally moving within a predetermined area when a fastener joint where the screens are joined to each other via the fastener moves horizontally. It is characterized by that.

The corner regulating device is
An arcuate guide rail that regulates the slider to be horizontally movable within the predetermined area;
A slide member that slides along the guide rail;
A pulling member for pulling the slide member and the slider in a state having elasticity;
It is good also as having.

Further, the width of the screen take-up shaft of each shaft is made narrower than the width of each screen, and the fastener is attached to the adjacent edge portion of each screen in the region protruding from the width of the screen take-up shaft of each shaft. It is good also as providing the fastener tape which comprises.

  Moreover, it is good also as providing the guide apparatus for enabling the said fastener tape to pay | pay out to the said slider with fixed tension degree and angle.

The guide device includes:
The fastener tape may be provided or provided with a roller mechanism that is rotatable while being wound up.

Also, a weight-use seat plate is provided at the lower end of the screen,
The seat plate is divided into a corner seat plate provided at a corner portion and a seat plate piece provided adjacent to the corner seat plate,
A gap for absorbing thermal expansion may be provided between the corner seat plate and the seat plate piece.

  As is apparent from the above description, according to the roll screen joint structure of the present invention, the adjoining screens are automatically joined in the extended state by the addition of a simple and inexpensive structure, and the joints in the wound state are joined. Once released, the screen can be individually wound on each shaft in a separated state.

  Moreover, since the screen correction member is provided, it is possible to reduce the resistance when the fasteners are engaged with each other and when the engagement is released, and the engagement and the release of engagement can be smoothly performed.

  Furthermore, since the fastener cover is provided, the airtightness at the joint portion when the screen is engaged is enhanced, and it is possible to prevent a decrease in flame shielding performance and smoke shielding performance.

  In addition, since the corner regulating device is provided, the slider follows the screen winding deviation and the like, so that the screen winding and winding operation is improved.

  In addition, since the fastener tape is provided at the adjacent edge portion of each screen in the region of the screen winding shaft of each shaft, it is possible to suppress the winding of the fastener portion. Furthermore, since the guide device is provided, the feeding operation of the screen becomes better.

  Further, since the gap is provided in the seat plate near the corner portion, the feeding and winding operation of the screen becomes better.

  Hereinafter, preferred embodiments of the present invention (roll screen joint structure) will be described in detail with reference to the accompanying drawings.

=== First Reference Example ===
1 to 3 show a first reference example . In the figure, on the back of the ceiling 2 partitioned by the ceiling board 1, a shutter case 3 of a roll screen is disposed, and is made of a non-combustible material such as a pair of non-combustible woven fabrics stored in the shutter case 3 in a wound state. The screen 4 having fire resistance or flame resistance is lowered to the room 5 side through a slit opened in the ceiling board 1, and the room 5 is divided into two compartments by the screen 4.

  Each screen 4 is rotatably supported by a pair of bearing brackets 6 at both ends, and wound around a parallel shaft 7 shifted in the axial direction, and the edges thereof are arranged in close proximity. Each shaft 7 is driven by, for example, a separate switch 8, and a weight common seat plate 9 is connected to both screens 4 at the lower part of the feeding end. The switch 8 includes a hoisting motor, a clutch, and the like. Usually, the screen 4 is kept in a hoisting state with the clutch engaged, and in an emergency, the clutch is disengaged by a clutch disengagement signal so that each shaft 7 can be freely rotated. The screen 4 is lowered by the dead weight of the combined seat plate 9 to partition the room 5.

  A fastener 10 (also referred to as a zipper) is provided at a position adjacent to both screens 4 along a side edge of the screen 4. An open bonding guide device 11 is provided. This guide device 11 is fixedly arranged in a state of elasticity with a pair of front and rear guide plates 12 fixed to the lower portion of the adjacent positions of the front and rear screens 4 and a connecting spring 13 inside the guide plates 12. Further, it is composed of a Y-shaped slider 14 and a branch metal fitting 15 provided on the upper portion of the slider 14 for preventing biting.

  Each of the fasteners 10 is a general one used for a sewn product or the like. Particularly, as shown in FIG. 3, a pair of fastener tapes 16 respectively connected to the side edges of the screen 4 by sewing or the like, and the side of the tape 16 It is composed of a large number of engaging elements 17 (elements or engaging portions also called shims) arranged along the edge and a lower stopper 18 at the lower edge of both tapes 16 and connecting the lower ends of both tapes 16. .

  Each engagement element 17 is generally made of metal, and as shown in an enlarged view in a part of FIG. 3, an engagement protrusion is formed at the top of the tip, and an engagement recess is formed at the bottom. The left and right meshing elements merge at the lower-side merging end of the Y-shaped passage in the interior, and the engagement protrusions of one of the meshing elements 17 are sequentially engaged with the engagement recesses of the other meshing element, thereby fixing the fasteners 10 together. Are joined, and moved to the upper side to release the engagement and to be separated left and right in a branched state.

  In addition to this, there is also a structure called a coil type, and there is a structure in which the fasteners 10 are joined together by the synthetic resin coils being entangled on the merging side of the slider 14 and the entanglement is released on the branch side. It is desirable to use a tape material made of non-combustible (or fire-resistant or flame-retardant) woven fabric, etc., and the engagement element 17 and the lower stopper 18 are made of metal.

  Further, as the function of the branch metal fitting 15, for example, when a layered cloth for covering the surface of the fastener 10 is attached to the edge of one screen 4, the layered cloth 15 is moved when the fastener 10 is moved. Has a function to prevent the foreign material from biting into the slider 14, or a function to prevent foreign matter from biting into the slider 14 even when it is not.

  In the above configuration, when each screen 4 is lowered, each meshing element 17 passes through the slider 14, so that the meshing elements 17 of the fastener 10 are engaged with each other at a lower position of the slider 14, and the screen 4 is interposed via the fastener 10. Join each other almost airtightly. When the slider 14 is lifted, the meshing elements 17 are separated from each other at the upper position of the slider 14, so that both screens 4 are separated and wound on the respective shafts 7. That is, the screen 4 is hermetically joined by the engagement of the fasteners 10 when the two screens 4 are extended and lowered, and separated when the fasteners 10 are separated in the retracted state.

  The sliding resistance at the slider passing position at the time of the upward and downward movement described above is a value that can be ignored with respect to the weight of the screen 4 and can be smoothly moved upward and downward.

In this reference example , the present invention is applied to the joining of two adjacent screens 4. However, when a wider indoor space is partitioned, the present invention can also be applied to the joining of a plurality of three or more screens 4.

=== Second Reference Example Form (Auxiliary Screen Installation) ===
4 and 5 show a second reference example . In this reference example , the same reference numerals are assigned to the same portions as those in the first reference example, and only different portions or newly added portions are described by adding new reference numerals.

  In the figure, the shafts 7 of both screens 4 are coaxially connected via a joint fitting 20, and are driven by a common switch 8. However, since both ends of each shaft 7 are supported by the bracket 6 and the joint metal fitting 20 is interposed, the edges of both screens 4 are separated from each other, and the joining by the fastener 10 is impossible.

Therefore, in this reference example , the auxiliary screen 21 is arranged in parallel with both ends thereof being in contact with each other between the screens 4, and both ends of the auxiliary shaft 22 for winding and feeding out are supported by the bracket 23. . The lower end of the auxiliary screen 21 is connected to a seat plate 9 also serving as a weight, and the auxiliary shaft 22 is biased toward the winding side by a spring (not shown).

  Then, fasteners 10 are provided on both sides of the auxiliary screen 21 by sewing or the like, and as shown in FIG. 5, the fasteners 10 on the screen 4 side are joined and passed through a pair of sliders 14. The screens 4 are joined on the lower side of the sliders 14 via the auxiliary screens 21 and are separated from each other on the upper side.

In the above reference example , even if the screens 4 are spaced apart from each other, there is an advantage that the edges are joined by the auxiliary screen 21 and that the screens 4 can be simultaneously driven by the single switch 8.

=== Third reference example (shaft parallel arrangement type) ===
FIG. 6 shows a third reference example . In the figure, both screens 4 are coaxial in plan view, and are different from the first reference example in that they are arranged in parallel in the side and front view, and the length of the upper screen 4 is attached together with the lower screen 4. This is the same as the first reference example except that it is necessary to keep extra length so as to be the same length at the time of flooring, and is suitable when the height of the ceiling back 2 can be increased. . Further, in this reference example , the switch 8 is not shown, but it can be individually driven or shared as in the first reference example, and can be linked to be simultaneously driven by a timing belt and a pulley.

=== Premise configuration (shaft crossing type) ===
FIG. 7 shows a precondition of the present invention. In the figure, one screen 4 is disposed at an angle of about 90 ° with respect to the other screen 4, and the proximal ends of both shafts 7 are rotatably supported by an L-shaped bearing bracket 30 shared by both shafts 7. In addition, the rotational force of the drive switch 8 of one shaft 7 is reduced by a power transmission mechanism such as a pair of bevel gears 31 disposed at this position (preferably, the bevel gear 31 is adopted in terms of certainty). It is transmitted to the other shaft 7.

Then, the approaching end of the screen 4, fasteners 10 are provided, respectively, by the slider 14 (not shown) provided in the lower part of the screen 4, to join the screen together during lowering, also points to separate at elevated identical to each Reference Example It is.

In addition, although it will be bent about 90 degrees in the joining position of the fastener 10, according to the flexibility of the fastener tape 16 and the screen 4, it can fully respond to bending. Further, in this precondition , the rotation of one shaft 7 is in the opposite direction to the other, and therefore the winding direction of the screen 4 may be determined so as to descend and rise in the same direction with respect to the reverse rotation.

In this premise configuration , a guide rail is provided to automatically join the adjacent screens in a state where the adjacent screens are lowered even in an orthogonal plane, etc., when the entire atrium, escalator, etc. space is enclosed by a fireproof screen device in a rectangular shape. Compared to the case, the design and usability around the atrium space will be greatly improved.

In addition, in this premise structure , although the case where it applied to the joining of the screens 4 which cross | intersect about 90 degrees was shown, it can also set to a shallower crossing angle and the bevel gear 31 of the meshing angle according to the crossing angle can be set. If a crossing angle is selected, or a shallow intersection angle, a flexible joint such as a universal joint may be used. In this case, the intersecting shafts rotate in the same direction.

=== First Embodiment (Installation of Screen Correction Member) ===
8 and 9 show a first embodiment of the present invention . Since both screens 4 are arranged at about 90 ° or other angles, when the screen 4 descends and the fasteners 10 are joined together, the slider 14 is placed on the screen so that the left and right engagement elements 17 are aligned. It is necessary to bend 4 to correct the shape.

  FIG. 10 is a diagram showing the state at this time, in which the state before joining is indicated by a dotted line and the state during joining is indicated by a solid line. Further, when the screen 4 rises and the joining of the fasteners 10 is released, the screen 4 is similarly bent.

  When the screen 4 is bent as described above, it is expected that a large force is applied to the slider 14 from the screen 4 or the slider 14 bites the tape 16 so that smooth engagement and disengagement are difficult. The Therefore, in the present embodiment, a screen correction member 40 that corrects the shape of the screen 4 when the slider 14 is raised and lowered is provided.

  FIG. 11 is a top view of the screen correction member 40, and a support column 41 is attached to the center of the slider 14, and an arm 42 extending in a Y shape is formed on the support column 41. A guide fitting 43 is provided at the tip of the arm 42, and the base of the support column 41 is connected to the attachment member 45 via a spring 44. The attachment material 45 is fixed to the guide plate 12 as can be seen from the enlarged view of FIG.

  Due to such a configuration, the left and right screens 4 that were in the state indicated by the dotted line before joining the fastener 10 are corrected so as to be spread by the guide fittings 43 when descending. Then, by setting the angle formed by the straight line connecting the guide fitting 43 and the slider 14 within a range of 120 ° to 180 °, the meshing elements 17 of the left and right screens 4 spread by the guide fitting 43 are substantially aligned. Can be lined up. Further, since the contact resistance between the guide metal fitting 43 and the screen 4 is small, the screen 4 can be easily moved up and down, and furthermore, since the meshing elements 17 are arranged substantially in parallel, they can be engaged smoothly.

  By the way, when a fire breaks out, wind or the like may blow against the screen 4 and shake. In this case, although it seems that a large force is applied to the slider 14 and the screen 4 between the guide fittings 43 is slackened, the column 41 is attached to the attachment member 45 via the spring 44, and the guide fitting 43 and the slider are attached. 14 is set in a range of 120 ° to 180 °. Therefore, when the screen 4 is shaken, the spring 44 is deformed accordingly and the guide fitting 43 is displaced. Does not occur. Therefore, the left and right meshing elements 17 can always be arranged substantially in parallel.

  In the above description, the guide metal fitting 43 attached to the tip of the arm 42 is assumed to be a sphere, but it may have a shape like a jelly bean or a shape like a rugby ball. May be. With such a shape, there is an advantage that the screen 4 can be gradually corrected.

  In addition to the spring 44, it is also possible to use a flexible metal material such as a wire or a chain. FIG. 12 shows a case where the chain 46 is used. That is, the screen correction member 40 is fixed to a mounting member 45 having a support 41 attached to the guide plate 12, a chain 46 is attached to the tip thereof, and the slider 14 is attached to the tip of the chain 46. Therefore, even if the screen 4 is shaken by wind or the like, the chain 46 is moved, so that the slider 14 can be swung according to the movement of the screen 4 and the meshing elements 17 can always be arranged in a substantially straight line.

  In the present embodiment, a screen correction member 40 as shown in FIG. 13 may be used. This screen correction member 40 is inserted with arms 47 made of bolts arranged in parallel on the left and right ends of an L-shaped attachment material 45. A guide fitting 43 is provided on the head of the arm 47, a spring 49 is loosely fitted between the nut 48 on the guide fitting 43 side and the mounting member 45, and the nut 50 is engaged with the rear portion. The arm 47 is biased toward the screen 4 by a spring 49.

  In such a configuration, when the wind blows and the screen 4 shakes, the left and right arms 47 move back and forth against the urging force of the spring 49 as shown in FIG. It becomes possible to hold.

=== Second Embodiment (Installation of Fastener Cover) ===
FIG. 15 shows a second embodiment of the present invention. In a state where the fastener 10 is engaged, the air permeability is almost lost, but sometimes the meshing element 17 may be missing. Even when the engagement element 17 is engaged, there may be a slight gap. In such a case, the flame shielding performance and smoke shielding performance at the joint portion are undesirably lowered.

  Therefore, in the present embodiment, a tape-shaped fastener cover 53 is provided so as to cover the joint portion, thereby preventing a decrease in flame shielding performance and smoke shielding performance. The fastener cover 53 is formed of a non-combustible, fire-resistant or incombustible non-combustible woven fabric or the like, and is attached by sewing along the joining end portion of the screen 4.

  When the fastener 10 is engaged, the tips of the left and right fastener covers 53 closely overlap each other by a predetermined length. The length of the overlapping portion K is appropriately set depending on the rigidity and surface state of the fastener cover 53. Thereby, it becomes possible to prevent flame and smoke from flowing through the joint portion of the fastener 10.

=== Third Embodiment (Installation of Corner Control Device) ===
16 to 18 show a third embodiment of the present invention.
In the roll screen joint structure of the present embodiment, the corner regulating device 70 has a configuration in which the screen 4 is installed in a region inside and / or outside a corner portion where a predetermined crossing angle (about 90 ° in the figure) is formed. It has become.
The corner regulating device 70 follows the slider 14 and moves into a predetermined area when the fastener joint where the screens 4 are joined to each other via the fastener 10 moves horizontally (in the direction parallel to the paper surface in FIG. 16). And a guide rail as described below.
Referring to FIGS. 16 and 17, when the corner regulating device 70 is installed in the outer region of the corner portion (see FIG. 16), and when the corner regulating device 70 is installed in the inner region (see FIG. 17). Each will be described in detail.

<When installed in the outer area>
16 is a schematic view showing a joint structure when the corner regulating device 70 is installed in an area outside the corner portion, and FIG. 16A is a schematic top view showing the joint structure of the corner portion, FIG. (B) is a schematic sectional drawing by the AA line of Fig.16 (a).

  As shown in FIG. 16A, the corner regulating device 70 includes an arcuate guide rail 71 for regulating the slider 14 so as to be horizontally movable within a predetermined region, and along the guide rail 71. A sliding member 72 that slides and a pulling member 73 that pulls and connects the sliding member 72 and the slider 14 in an elastic state are provided.

In the figure, the corner regulating device 70 is provided in an area outside the corner portion, that is, in an area opposite to an area (inside area) closed by each screen 4 when a fire occurs, It is fixed to the bearing bracket 30 located in this outer region with a bolt or the like.
In particular, when the corner portion is an open space, it is difficult to apply the corner regulating device 70 to the inner area. Even if it is applied to the inner area, maintenance problems such as replacement and design are difficult. Since there is a problem such as property, the corner regulating device 70 is provided in a region outside the corner portion.
However, in the region outside the corner portion, the shafts 7 are connected by the bevel gears 31 and the like, so that when the corner regulating device 70 comes into contact with the shaft 7 and the like, the feeding and winding operation of the screen 4 is hindered. Therefore, the corner regulating device 70 is disposed so as not to contact the shaft 7 or the like.

Further, as shown in FIG. 16B, also from the schematic cross-sectional view taken along the line AA in FIG. 16A, the corner regulating device 70 includes an arcuate guide rail 71, a slide member 72, and a puller. A member 73 is provided, and it can be seen that it is installed in a region outside the corner portion.
In the figure, the guide rail 71 has an arc shape in accordance with the shape of the corner portion (intersection angle is about 90 °). Such a guide rail 71 may have other forms such as a linear form. Needless to say, the guide rail 71 can be appropriately designed in terms of rail direction, distance, installation location, number of installations, and the like so that the slider 14 can be horizontally moved within a predetermined region.

  The slide member 72 slides along a U-shaped groove formed on the inner side of the guide rail 71 so as to move horizontally following the movement of the slider 14 in the horizontal direction. Such a slide member 72 may be configured to mesh with and slide on the outside of the guide rail 71, or may be configured to roll on the guide rail 71.

  Further, the pulling member 73 pulls the screen 4 outward and pulls the slide member 72 and the slider 14 in an elastic state. As shown in FIG. 16A, the ring portion 73a of the pulling member 73 is engaged with the U-shaped portion 72a of the slide member 72 in a state where the relative position can be changed. Specifically, since the pulling member 73 pulls the screen 4 outward, the outer portion of the ring portion 73 a of the pulling member is engaged with the inner portion of the U-shaped portion 72 a of the slide member 72. Thereby, the slider 14 is arrange | positioned in the state which has elasticity.

  As described above, by using the corner regulating device 70, the slider 14 can follow the generated winding deviation in a predetermined region and follow the horizontal deviation even if the winding deviation of the screen 4 occurs. It becomes possible to move, and the take-up operation of the screen 4 is improved.

  On the other hand, when the corner regulating device 70 is not installed at the corner portion, when the two screens 4 to be jointed are lowered and raised, a winding shift or the like causes a large force from the screen 4 to the slider 14. It is expected that smooth engagement and disengagement will become difficult due to the addition or the slider 14 biting the fastener tape or the like.

<When installed in the inner area>
On the other hand, FIG. 17 is a schematic top view showing a joint structure when the corner regulating device 70 is installed in an area inside the corner portion.
Also in FIG. 17, the corner restricting device 70 is an arcuate guide rail 71 for restricting the slider 14 so as to be horizontally movable within a predetermined region, and a slide member 72 that slides along the guide rail 71. And a pulling member 73 that pulls and connects the slide member 72 and the slider 14 in an elastic state.

In the same figure, it does not become the atrium space as shown in FIG. 16, but a ceiling surface, a pillar, etc. are provided. Therefore, the corner regulating device 70 is provided in an area inside the corner portion, that is, an area (inside area) closed by each screen 4 when a fire occurs, and a ceiling surface located in the inside area. It is fixed to bolts and pillars.
Further, as the pulling member 73, a member having a form different from that shown in FIG. 16, that is, a member added with an arm portion 73b is used, but a member having a form as shown in FIGS. Also good. Moreover, you may provide the fastener cover 53 (refer FIG. 15) as shown in 2nd embodiment .

  In the present embodiment, although not separately illustrated, the present invention is not limited to the case where the corner regulating device 70 is provided only in one of the inner and outer regions, and is provided in both the inner and outer regions. It goes without saying that cases may also be included.

  Also by using the corner regulating device 70 installed in the area inside the corner portion, when the screen 4 is unrolled or the like, the slider 14 is excellent in the predetermined area in the generated unwinding. Accordingly, the screen 4 can be moved horizontally, and the screen 4 can be wound and wound well.

<When a screen correction member is added>
Next, a case where a screen correction member as described above is provided in addition to the corner restriction device 70 as described above will be described.
FIG. 18 is a schematic top view showing a joint structure when a screen correcting member (see FIG. 8) is added to such a corner regulating device 70.
As shown in FIG. 18, the slider 14 is corrected by the screen correcting member 40 (see FIG. 11) from the inside of the corner portion as in FIG. 8, and the corner regulating device 70 is provided on the outside. .
Also in the figure, the corner restricting device 70 is an arcuate guide rail 71 for restricting the slider 14 so as to be horizontally movable within a predetermined region, and a slide member 72 that slides along the guide rail 71. And a pulling member 73 that pulls and connects the slide member 72 and the slider 14 in an elastic state. In addition, as the screen correction member 40, you may use what is shown with another form (refer FIGS. 12-15).

=== Fourth Embodiment (Installation of Guide Device) ===
FIG. 19 shows a fourth embodiment of the present invention. The roll screen joint structure of this embodiment has a configuration in which a guide device 80 is installed. FIG. 19A is a schematic view showing a joint structure of a corner portion, and FIG. 19B is a schematic cross-sectional view taken along line AA of FIG. 19A. In the present embodiment, the same portions as those in the third embodiment are denoted by the same reference numerals, and only different portions or newly added portions are denoted by new reference numerals.

  As shown in FIG. 19A, the guide device 80 has a bearing bracket 30 located in an outer region so that the fastener tape 81 constituting the fastener 10 can be fed out to the slider 14 with a certain degree of tension and angle. It is fixed with bolts.

  In the present embodiment having the above-described configuration, the horizontal width of the screen winding shaft 74 of each shaft 7 is wider than the horizontal width of each screen 4, and each screen 4 in the region protruding from the horizontal width of the screen winding shaft 74 of each shaft 7. Fastener tape 81 is provided on the adjacent edge of the. With such a configuration, although the fastener tape 81 is usually thicker than the screen 4, it is possible to suppress the winding of the adjacent edge portion.

  In the same figure, the guide device 80 may be provided with a roller mechanism that is rotated while the fastener tape 81 is fed or wound, or the guide device itself does not rotate and contacts the screen 4. It may be a cylindrical shape with a smooth surface. Such a guide device 80 is fixed to the bearing bracket 30 located in the outer region with a bolt or the like. Needless to say, the guide device 80 can be appropriately designed in terms of shape (ball shape, etc.), number of installation, installation location, installation form (form fixed with a spring, etc.), and the like.

  With this configuration, the fastener tape 81 can be fed out to the slider 14 with a certain tension (tension) applied to the fastener tape 81 when the screen is operated (descent / rise). become. Further, the angle of entry of the fastener tape 81 into the slider 14 does not change due to the change in the winding diameter of the screen 4.

That is, as shown in FIG. 19B, the fastener tape 81 is fed out to the slider 14 at a constant tension and angle with respect to the winding thickness of the fastener portion, the change in the winding diameter of the screen 4, and the like. (D ₁ ≈d ₂ , θ ₁ ≈θ ₂ ). As a result, the feeding operation of the screen 4 becomes better. Furthermore, since the screen 4 is paid out while coming into contact with smoke return or the like provided in the vicinity of the supply outlet, smoke generated by a fire or the like does not escape from the supply outlet provided on the ceiling surface or the like. Therefore, smoke generated by fire or the like is completely sealed in the inner area surrounded by the screen 4.

=== Fifth embodiment (configuration of seat plate near corner) ===
FIG. 20 shows a fifth embodiment of the present invention. In this embodiment, as in the other embodiments (see FIG. 9), the weight-use seat plate 90 is attached to the lower end of the screen, but the configuration of the seat plate 90 near the corner portion is the same as that of the other embodiments. Is different. The joint structure itself at the upper end of the screen has the same configuration as in the other embodiments.

  As shown in FIG. 20, the weight-use seat plate 90 is provided at the lower end of each screen 4. The seat plate 90 in this embodiment is divided into an L-shaped corner seat plate 91 and a seat plate piece 92 provided adjacent to the corner seat plate 91, and absorbs thermal expansion between the two. A gap 93 is provided.

  The seat plate 90 also used as a weight is fastened with bolts or the like by sandwiching a metal flat bar having a constant weight from both sides of the lower end portion of the screen 4 in the same manner as the seat plate 9 shown in FIGS. Is provided at the lower end of the screen.

  In the present embodiment configured as described above, the gap 93 is provided on both the inside and outside of the seat plate 90, but both sides of the seat plate 90 are covered with a decorative board or the like (see FIGS. 2 and 6). Therefore, the gas and heat generated at the time of fire do not escape from the gap 93. Needless to say, the number and location of the gaps 93 and the size and shape of the gaps can be appropriately designed.

  In the same figure, it is conceivable to provide a gap 93 at the corner portion. In this case, however, the intersection angle near the corner portion is likely to be deformed, and the fastener joint portion at the upper end of the screen is distorted. . There are also problems such as poor design and decreased productivity. For this reason, it is preferable not to provide a gap particularly near the apex of the corner.

  By the way, when the seat plate 90 is not divided, if the seat plate 90 serving as a weight is heated from the inside or the outside during a fire, the coefficient of thermal expansion is different between the side that receives heat and the side that does not receive heat. Causes the phenomenon of large deflection (thermal deformation of the seat plate). When the seat plate at the lower end of the screen is thermally deformed in this manner, there is a possibility that a gap is generated between the seat plate and the floor surface, or stress is generated at the screen and the fastener joint portion in the vicinity of the thermally deformed seat plate to be damaged. There is a possibility, and there is a problem in flame barrier properties.

  In this embodiment, the seat plate 90 is divided into an L-shaped corner seat plate 91 and a seat plate piece 92 provided adjacent to the corner seat plate 91, and absorbs thermal expansion between the two. Since the gap 93 is provided, the thermal expansion can be absorbed by the gap 93 and thermal deformation of the seat plate can be prevented as much as possible.

  Thereby, even when the seat plate at the lower end of the screen is thermally expanded, there is no large deflection, and there is a possibility that a gap is generated between the seat plate and the floor surface. There is no possibility that the fastener joint is damaged due to stress, and good flame shielding performance can be maintained.

It is a top view of the roll screen by a 1st reference example . It is a sectional side view by the AA line of FIG. FIG. 3 is an enlarged front view as viewed in B of FIG. 2. It is a top view which shows the roll screen by a 2nd reference example . It is the C view enlarged front view of FIG. It is a perspective view which shows the roll screen by a 3rd reference example . It is a perspective view which shows the roll screen by a 4th reference example . It is a top view which shows the roll screen by 1st embodiment of this invention. It is a side view of the roll screen of FIG. It is a schematic diagram explaining the state before and behind the engagement of a fastener. It is a top view which shows the structure of a screen correction member. It is a top view which shows the structure of the screen correction member of another structure. It is a top view which shows the structure of the screen correction member of another structure. It is a figure which shows a motion of the screen correction member when a screen shakes. It is a figure which shows the state which attached the fastener cover. It is the schematic which shows the joint structure where the corner control apparatus was installed in the outer side. It is the schematic which shows the joint structure where the corner control apparatus was installed inside. It is a schematic top view which shows the joint structure at the time of adding a screen correction member to a corner control apparatus. It is a figure which shows the roll screen by 4th embodiment of this invention. It is the schematic which shows the seat board near the corner part by 5th embodiment of this invention.

Explanation of symbols

4 Screen 6, 23, 30 Bearing bracket 7 Shaft 10 Fastener 13 Connection spring 14 Slider 16, 81 (Fastener) Tape 17 Engagement element 20 Joint metal fitting 21 Auxiliary screen 22 Auxiliary shaft 30 L-shaped bearing bracket 31 Bevel gear (rotation transmission) Means) 40 Screen correction member 41 Post 42, 47 Arm 43 Guide fitting 44, 49 Spring 45 Mounting material 46 Chain 53 Fastener cover 70 Corner regulating device 71 Guide rail 72 Slide member 73 Puller member 74 Screen take-up shaft 80 Guide device 90 Seat plate for weights 91 L-shaped corner seat plate 92 Seat plate piece 93 Gap

Claims (10)

In a roll screen joint structure comprising at least a pair of screens wound around a rotatable shaft and fed out and wound in a state where the edges thereof are close to each other by the rotational movement of the shaft,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately ,
The shafts are arranged at a predetermined crossing angle;
When the fasteners are engaged with each other by the slider and are disengaged, the left and right engagement elements engaged by the slider are in contact with the screen in the vicinity of the left and right of the slider so that the shape thereof is aligned. A screen correction member is provided to correct
The screen straightening member has one end engaged with the slider and the other end engaged with a mounting member fixed to a stationary member such as a guide plate,
A guide metal fitting is provided at the front end of the support column, and the guide metal fitting is urged toward the screen so that an angle formed by a straight line connecting the guide metal fitting and the slider is 120 ° to 180 °. An arm for correcting the shape of the roll screen in the range of °,
The slider and the support column are engaged via a flexible member such as a chain or a spring so that the slider can move following the movement of the left and right screens. Roll screen joint structure. Oite to claim 1, linked via a rotation transmitting means intersection of the shaft, the joint structure of the shade, characterized in that for transmitting the rotational force of the one shaft to the other shaft. In a roll screen joint structure comprising at least a pair of screens wound around a rotatable shaft and fed out and wound in a state where the edges thereof are close to each other by the rotational movement of the shaft,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately,
The shafts are arranged at a predetermined crossing angle;
When the fasteners are engaged with each other by the slider and are disengaged, the left and right engagement elements engaged by the slider are in contact with the screen in the vicinity of the left and right of the slider so that the shape thereof is aligned. A screen correction member is provided to correct
The screen straightening member has one end engaged with the slider and the other end engaged with a mounting member fixed to a stationary member such as a guide plate,
A guide metal fitting is provided at the front end of the support column, and the guide metal fitting is urged toward the screen so that an angle formed by a straight line connecting the guide metal fitting and the slider is 120 ° to 180 °. An arm for correcting the shape of the roll screen in the range of °,
The attachment member and the support column are engaged via a flexible member such as a chain or a spring so that the slider and the guide fitting can move following the movement of the left and right screens. A roll screen joint structure characterized by that. The fastener cover according to any one of claims 1 to 3 , which is provided along each joining end portion of the adjacent screens, and when the left and right screens are engaged with each other, the release ends are in close contact with each other. A roll screen joint structure characterized by comprising In a roll screen joint structure comprising at least a pair of screens wound around a rotatable shaft and fed out and wound in a state where the edges thereof are close to each other by the rotational movement of the shaft,
A fastener is provided along an adjacent edge portion of each screen, and a slider for joining and releasing the fasteners is fixedly arranged at the feeding end of each screen in an elastic state, and each screen is provided. When the respective fasteners pass through the slider, the screens are joined to each other via the fasteners, and when the screens are taken up, the fasteners pass through the sliders to be separated from each other. To release the bonding between the screens, so that each shaft can be wound separately,
The shafts are arranged at a predetermined crossing angle;
In the area inside and / or outside the corner portion where each shaft forms a predetermined crossing angle,
A corner regulating device provided with a guide rail for following the slider and horizontally moving within a predetermined area when a fastener joint where the screens are joined to each other via the fastener moves horizontally. A roll screen joint structure characterized by that. The corner regulating device according to claim 5 ,
An arcuate guide rail that regulates the slider to be horizontally movable within the predetermined area;
A slide member that slides along the guide rail;
A pulling member for pulling the slide member and the slider in a state having elasticity;
A roll screen joint structure characterized by comprising: The screen according to any one of claims 1 to 6 , wherein a width of the screen winding shaft of each shaft is made narrower than a width of each screen, and the screen is in a region protruding from the width of the screen winding shaft of each shaft. A roll screen joint structure, wherein a fastener tape constituting the fastener is provided at an adjacent edge of the roll screen. 8. The roll screen joint structure according to claim 7 , wherein a guide device is provided to enable the fastener tape to be fed out to the slider at a certain degree of tension and angle. In Claim 8 , the guide device comprises:
A roll screen joint structure comprising a roller mechanism capable of rotating while the fastener tape is fed or wound. In any one of Claims 1-9 , the seat board used as a weight is provided in the lower end part of the screen,
The seat plate is divided into a corner seat plate provided at a corner portion and a seat plate piece provided adjacent to the corner seat plate,
A roll screen joint structure, wherein a gap for absorbing thermal expansion is provided between the corner seat plate and the seat plate piece.