JP6803147B2 - Roll screen device - Google Patents

Description

The present invention relates to a screen device to be attached to an opening of a building, and specifically to a roll type (winding type) screen device for the purpose of insect repellent, shading, blindfolding, heat insulation, decoration, and the like.

Conventionally, as such a screen device, for example, as disclosed in Patent Document 1, a pair of upper and lower frames in which a guide body as an inner rail is incorporated inside, and a shaft in a winding box are wound. A roll-type horizontal pull that can be opened and closed in the left-right direction by guiding the upper and lower ends of the insect repellent net with the guide body when the insect repellent net is unwound from the winding box. The screen door is known. In this conventional roll-type horizontal sliding screen door, a large number of engaging pieces are attached to the upper and lower edges of the net over the entire length, and the opening width of the upper and lower guide bodies is narrower than the width of these engaging pieces. Slit grooves are formed, and these engaging pieces are movably attached to the slit grooves in a state of being prevented from coming off.

By the way, there are various sizes of openings in buildings, and there is a request to attach a screen device such as a screen door to an opening having a larger opening width or opening area. In that case, the opening It is necessary to use a larger screen according to the opening width and opening area. However, when such a large screen is used in a conventional screen device as described above, the weight of the screen becomes heavier, and the screen may be loosened or bent downward due to its own weight.

Japanese Unexamined Patent Publication No. 2008-57232

The present invention has been made in view of the above circumstances, and a technical object thereof is to provide a roll screen device capable of preventing slackening and bending due to the weight of the screen itself.

In order to solve the above problems, according to the present invention, a fastener member for a guide is provided with a flexible screen attached to at least the upper end and an upper horizontal frame extending laterally and provided above the screen. , A slit groove that slidably engages the winding box in which the winding shaft connecting one end in the lateral direction of the screen is housed and the fastener member of the screen unwound from the winding box in a retracted state. Is provided on the lower surface, and a long upper guide member housed in the upper horizontal frame, and an operation stile attached to the other end of the screen in the lateral direction and sliding along the upper guide member. The upper horizontal frame is formed in a groove shape that opens downward, and is projected inward from each side wall side along the longitudinal direction inside the roll screen device. a pair of projecting walls, the said upper guide member and the respective side walls along the longitudinal direction are formed a pair of flange portions which protrude outwardly in the upper horizontal frame, the The upper guide member has its pair of flanges arranged on the upper side of the pair of protruding walls and its slit groove arranged between the pair of protruding walls, and both ends thereof with respect to the upper horizontal frame. By being fixed and forming a space on the upper guide member, it is allowed to bend upward, and the upper guide member is between the flange portion and the projecting wall facing the flange portion. An urging member that applies an upward urging force to the upper guide member is provided, a pair of engaging portions are formed at the upper end portion of the operating frame, and the engaged portions are formed on both side walls of the upper guide member. Is formed, and by engaging each of the pair of engaging portions with these engaged portions, the operating stile is slidably held with respect to the upper guide member. Equipment is provided.

In a preferred embodiment of the rolling screen device according to the present invention, the biasing member, one end portion is fixed to either one of the flange portions or the protruded wall, it abuts the other end to the other elongated It is composed of a leaf spring, and the leaf spring is configured to extend in the longitudinal direction of the upper guide member .

Further, in a preferred embodiment of the roll screen device according to the present invention, the upper horizontal frame is formed in a groove shape that opens downward, and is an upper outer horizontal frame for fixing to the upper frame of the building opening. And the upper inner horizontal frame that is detachably housed inside the upper outer horizontal frame and is formed in a groove shape that opens downward, and the upper guide member is housed inside the upper inner horizontal frame. At the same time, the pair of protruding walls are projected inward from the side walls of the upper inner horizontal frame, and the base end side of the portion of the upper inner horizontal frame in which the upper guide member is housed is rotated downward by a hinge. It can be configured to be movable so that the upper inner horizontal frame can be folded when the screen device is attached or detached.
Further, in the roll screen device according to the present invention, a fastener member for a guide is also attached to the lower end of the screen, and a lower guide member having a slit groove formed on the upper surface for engaging the fastener member in a retracted state. Can be provided along the lower end of the screen unwound from the take-up box .

As described above, according to the roll screen device according to the present invention, in the upper horizontal frame, the upper guide member has its pair of collars arranged on the upper side of the pair of protruding walls and its slit groove. In a state of being arranged between the pair of protruding walls, both ends thereof are fixed to the upper horizontal frame, and a space is formed on the upper guide member, so that it is allowed to bend upward. An upward urging force is applied to the upper guide member. Therefore, even if the screen extends downward due to its own weight, the upper guide member bends upward due to the urging force of the urging member, so that the screen can be prevented from loosening or bending.

It is a partial cut front view which shows the state which the roll screen apparatus which concerns on 1st Embodiment of this invention is attached to the opening of a building. FIG. 2 is an enlarged cross-sectional view of II-II in FIG. It is a partial perspective view of the upper inner rail (upper guide member) in FIG. It is a partially enlarged front view explaining the state which closed the screen which concerns on 1st Embodiment. FIG. 5 is a sectional view taken along line VV in FIG. It is a partially enlarged front view explaining the state in the process of opening and closing of the screen which concerns on 1st Embodiment. FIG. 6 is a sectional view taken along line VII-VII in FIG. It is a partial cut front view which shows the state which the roll screen apparatus which concerns on 2nd Embodiment of this invention is attached to the opening of a building. FIG. 8 is a cross-sectional view showing a state in which the fastener member is engaged with the slit groove of the guide piece.

The first embodiment of the roll screen apparatus according to the present invention will be described below with reference to FIGS. 1 to 7. The roll screen device 1A of the present embodiment is attached to a building opening for the purpose of insect repellent, shading, blindfolding, heat insulation, decoration, etc., and is applied to, for example, a roll-type screen door device, a blindfolding device, a sunshade device, or the like. Although it is possible, it is particularly suitable for roll-type screen door devices. Therefore, in the following, a case where the roll screen device 1A is applied to a roll type screen door will be described.

This roll screen device 1A extends laterally (horizontally and horizontally) with a flexible screen 10 which is an insect repellent net made of synthetic resin, and is parallel to each other above and below the screen 10. The upper horizontal frame 20 and the lower horizontal frame 32, and one ends of the upper horizontal frame 20 and the lower horizontal frame 32 are connected to each other and extended in the vertical direction (vertical direction) to wind up the screen 10. The take-up shaft 2 is arranged in parallel with the take-up box 3 at a position facing the take-up box 3 and the take-up box 3 rotatably supported and housed around the shaft, and is arranged in parallel with each other. The side frame 4 connecting the other ends of the horizontal frame 20 and the lower horizontal frame 32 and the take-up box 3 and the side frame 4 are slidably arranged in parallel with each other. It is provided with an operation stile 40 for opening and closing the screen 10 by laterally pulling.

At the upper and lower ends of the screen 10, a guide for slidably engaging the upper inner rail 50 as the "upper guide member" and the lower inner rail 60 as the "lower guide member" described later. Fastener members 11 and 12 are fixed by welding, adhesion, or the like. The fastener members 11 and 12 have a large number of engaging pieces (one of so-called slide fasteners) on one end edge extending in the longitudinal direction in a flexible strip made of synthetic resin, cloth, or the like, over the entire length thereof. These are fixed in a row, and are already well known as disclosed in Patent Document 1 above. Further, the take-up shaft 2 is connected to one end of the screen 10 in the lateral direction, and the operation frame 40 is fixedly attached to the other end. A coil spring 5 is built in the take-up shaft 2 as a drive source for winding the screen 10.

The upper horizontal frame 20 is formed in a groove shape that opens downward, and has a long upper outer horizontal frame 21 for fixing to the upper opening frame of the building opening and an upper outer horizontal frame 21. It is detachably housed inside, and is also composed of a long upper inner horizontal frame 22 formed in a groove shape that opens downward. One end of the upper outer horizontal frame 21 and the upper inner horizontal frame 22 is connected to the upper end of the take-up box 3, and the other end is connected to the upper end of the side frame 4. The upper inner horizontal frame 22 accommodates the upper inner rail 50 for guiding the upper end portion of the screen 10 and the operating frame 40 by sliding them in the lateral direction. The upper inner rail 50 is formed of a synthetic resin in a long and linear shape, and has flexibility in the vertical direction in the drawing.

Here, in the portion of the upper inner horizontal frame 22 in which the upper inner rail 50 is housed, the base end side thereof is rotatable downward (counterclockwise in the figure) by the hinge 22a, and the tip end side thereof is the side frame. It is possible to engage with 4 against. Specifically, a locking recess 28 is formed at the upper end of the side frame 4, and a locking protrusion 29 is provided on the tip side of the upper inner horizontal frame 22, and the locking protrusion 29 is engaged with the above. The upper inner horizontal frame 22 can be locked to the side frame 4 by engaging with the stop recess 28 by fitting . The locking protrusion 29 is attached to the upper inner horizontal frame 22 via a spring 48, and the locking recess 28 and the locking protrusion 29 can be engaged and disengaged by the expansion and contraction of the spring 48. .. By doing so, the upper inner horizontal frame 22 can be compactly folded when the screen device 1A is attached to or detached from the opening of the building .

Further, as shown in FIGS. 2, 5 and 7, the rotating portion of the upper inner horizontal frame 22 in which the upper inner rail 50 is housed is formed on both side walls 23, 23 extending in the longitudinal direction and facing each other. It has a pair of projecting walls 24, 24 projecting inward from the lower end, and an opening 25 formed between the tip edges of these projecting walls 24, 24. The protruding walls 24, 24 include a pair of extending walls 26, 26 hanging downward from the lower surface of the screen 10 side, and a pair of ribs 27, 27 erected upward from their tips. Is provided. The protruding walls 24, 24, the extending walls 26, 26, and the ribs 27, 27 are all extended along the longitudinal direction of the upper inner horizontal frame 22.

Further, in the upper inner rail 50, a slit groove 51 in which the fastener member 11 of the screen 10 is slidably engaged in a retracted state is provided on the lower surface along the longitudinal direction. At this time, the slit groove 51, as shown in FIGS. 5 and 7, the groove width of that of the distal end of the fastener member 11 width (i.e., the width of the engagement piece) smaller than, the inner portion The groove width on the side is formed to be larger than the width of the tip portion of the fastener member 11. Therefore, in a state where the screen 10 is unwound from the take-up box, that is, in a state where the tip end portion of the fastener member 11 is inserted into the inner portion through the opening of the slit groove 51, the fastener member 11 is slit. By abutting against the inner wall on the opening side in the inner portion of the groove 51, it is engaged with the slit groove 51 and is prevented from being pulled out downward from the slit groove 51.

At the upper end of the upper inner rail 50, a pair of collar portions 53, 53 projecting outward (that is, in a direction opposite to each other) along the longitudinal direction from both side walls 52, 52 extending in the longitudinal direction. Is formed. Further, from below the flange portions 53, 53 on the side walls 52, 52, the engaged convex portions 54, 54 as the engaged portions, which are also projected outward along the longitudinal direction, are formed. ing. At this time, the length between the tips of the pair of collar portions 53, 53 is formed to be slightly smaller than the distance between the opposing inner surfaces of the side walls 23, 23 of the upper inner horizontal frame 22, and the opening. It is formed larger than the width of 25, and the width of the upper inner rail 50, that is, the distance between the back facing outer surfaces of the side walls 52 and 52 thereof is the width of the opening 25 of the upper inner horizontal frame 22. That is, it is formed to be slightly smaller than the distance between the tips of the protruding walls 24 and 24. Through holes 56 and 56 for inserting one end of a leaf spring 70, which will be described later, and fixing the flanges 53 and 53 to the flanges 53 and 53, respectively, are provided at substantially the center of the flanges 53 and 53 in the longitudinal direction. It is provided.

As shown in FIGS. 2, 5 and 7, in the upper inner rail 50, the flange portions 53 and 53 are arranged above the protruding walls 24 and 24 of the upper inner horizontal frame 22, respectively, and the slit groove 51 is provided. Is housed in the upper inner horizontal frame 22 in a state of being arranged between the pair of protruding walls 24 and 24 through the opening 25, and both end portions 50a and 50b thereof are fixed to the upper inner horizontal frame 22. There is. A space A is formed above the inner rail 50, that is, between the inner rail 50 and the upper inner horizontal frame 22 in the vertical direction. By doing so, the intermediate portion of the inner rail 50 sandwiched between the both end portions 50a and 50b can be curved and bent upward in the upper inner horizontal frame 22.

On the other hand, as shown in FIGS. 1 and 2, the lower horizontal frame 32 fixed to the lower opening frame of the building opening basically has the same configuration as the upper inner horizontal frame 22. , The top and bottom are reversed from the upper inner horizontal frame 22. Inside the lower horizontal frame 32, a lower inner rail 60 as a "lower guide member" that slidably guides the lower end portion of the screen 10 and the operation frame 40 in the lateral direction is housed. The lower inner rail 60 basically has the same configuration as the upper inner rail 50, but is upside down from the upper inner rail 50. The portion of the lower horizontal frame 32 in which the lower inner rail 60 is housed also has its base end side rotatable upward (clockwise in the figure) by the hinge 32a, and its tip end side is the lower end of the side frame 4. It is engaged and disengaged with respect to the part.

Therefore, the lower horizontal frame 32 is formed in a hollow shape that opens upward, and has both side walls 33 and 33 that face each other. The rotating portion of the lower horizontal frame 32 in which the lower inner rail 60 is housed includes a pair of protruding walls 34, 34 projecting inward from the upper ends of the side walls 33, 33, and these protruding walls. It has an opening 35 formed between the tip edges of 34 and 34. Further, these projecting walls 34, 34 include a pair of extending walls 36, 36 erected on the screen 10 side, that is, above the upper surface thereof, and a pair of ribs 37, 37 hanging downward from their tips. Is provided.

On the other hand, in the lower inner rail 60 as well as the upper inner rail 50, the slit groove 61, the flange portions 63, 63, and the engaged convex portion 64, which engage the fastener member 12 on the lower end side of the screen in the detached state, It has 64, and both ends are fixed to the lower horizontal frame. Since the more specific structure of the lower horizontal frame 32 and the lower inner rail 60 and the mutual dimensional relationship are the same as those of the upper inner horizontal frame 22 and the upper inner rail 50, the description thereof will be omitted here. .. Further, in the present embodiment, the leaf springs 70 and 70, which will be described later, are not attached to the lower inner rail 60, but they may be provided as needed.

Next, the urging member that urges the upper inner rail 50 upward will be described. As shown in FIGS. 3 and 7, in the present embodiment, a pair of leaf springs 70 and 70 are used as the urging members, and these leaf springs 70 and 70 are used in the longitudinal direction of the upper inner rail 50. In the center, the inner rail 50 is provided between the flange portions 53, 53 and the protruding walls 24, 24 of the upper inner horizontal frame 22, respectively. The leaf springs 70 and 70 are elongated by a metal material having spring elasticity, and are arranged in a direction along the longitudinal direction of the upper inner rail 50.

Specifically, the leaf spring 70 forms a spring contact portion 71 in which one end thereof is curved downward, and the spring portion 71 hits the protruding wall 24 of the upper inner horizontal frame 22. Being in contact. The leaf spring 70 is inclined upward from the spring contact portion 71 on one end side toward the other end side, and is refracted along the lower surface on the lower surface of the collar portion 53. The other end of the leaf spring 70 is led out to the upper surface of the collar 53 through the through hole 56 of the collar 53, and is folded back in the opposite direction to form the fixing 72. The collar portion 53 is fixed to the collar portion 53 in a state of being sandwiched by the collar portion 53. At this time, the fixing form of the fixing portion 72 and the flange portion 53 is not limited to this, and may be riveted or screwed.

The leaf spring 70 is contracted between the flange portion 53 of the upper inner rail 50 and the protruding wall 24 of the upper inner horizontal frame 22, and the fastener member 11 on the upper end side of the screen 10 is engaged in a retracted state. An upward urging force is always applied to the combined inner rail 50. On the other hand, when the screen 10 is unwound from the take-up box 3 and closed, the fastener member 12 on the lower end side of the screen 10 is engaged with the slit groove 61 of the lower inner rail 60 in a detached state. , A vertical tension is always applied to the screen 10.

At this time, the ribs 27, 27 erected from the tips of the protruding walls 24, 24 of the upper inner horizontal frame 22 are stoppers that protect the leaf spring 70 from crushing when the upper inner rail 50 is lowered downward. Plays the role of. Further, in the present embodiment, since such a leaf spring is not provided on the lower inner rail 60, the flange portion 63 of the lower inner rail 60 is applied to the rib 37 of each protruding wall 34 in the lower horizontal frame 32. I'm in contact. Here, in a state where the screen 10 is closed, the urging force of the leaf spring 70 acting upward and the tension and weight of the screen 10 acting downward are combined so that the upper inner rail 50 becomes substantially linear. It is desirable that the relationship is coordinated.

The leaf spring 70 of the present embodiment is arranged so that the spring portion 71 is on the take-up box 3 side and the fixing portion 72 is on the side frame 4 side, but the spring portion 71 is on the side frame 4 side and the fixing portion. 72 may be arranged so as to be on the winding box 3 side. Further, the leaf spring 70 may be one in which the spring contact portion 71 is brought into contact with the lower surface of the flange portion 53 and the fixing portion 72 is fixed to the protruding wall 24. Further, as the urging member, another spring member such as a string-wound spring or an elastic material may be used instead of the leaf spring.

As shown in FIGS. 2 and 7, a pair of engaging hooks 41 and 41 are formed on the upper end portion of the operating stile 40 as an engaging portion for standing with the tips facing each other in a substantially hook shape. By engaging the engaging hooks 41, 41 with the engaged protrusions 54, 54 of the upper inner rail 50 from above, the operating stile 40 is slidably held with respect to the upper inner rail 50. .. Further, an engaging hook 42, 42 similar to the upper end portion thereof is formed at the lower end portion of the operation stile 40, and the engaging hook 42, 42 is the engaged convex portion 64, 64 of the lower inner rail 60. The operating stile 40 is slidably held with respect to the lower inner rail 60 by engaging with the lower inner rail 60 from below. The engaging hooks 41, 41 and the engaged convex portions 54, 54 are located between the pair of extending walls 26, 26 in the upper inner horizontal frame 22, and are engaged with the engaging hooks 42, 42. The protrusions 64, 64 are located between the pair of extending walls 36, 36 in the lower horizontal frame 32.

Next, the operation of the roll screen device 1A having such a configuration will be described. First, initially, the screen 10 is unwound from the take-up box 3 by laterally pulling the operation stile 40, and in a state where the screen 10 is completely closed, the tension and weight of the screen 10 acting on the upper inner rail 50. The downward force such as the above and the upward urging force by the leaf spring 70 are roughly balanced, and the upper inner rail 50 is maintained in a substantially linear state.
However, in particular, when the screen 10 is larger due to a wide opening width of the building or the like, as the years pass, the central portion of the screen 10 is in particular its own weight in the state where the screen 10 is closed as shown in FIG. It is also assumed that the screen gradually extends downward due to such factors, and in such a case, the screen 10 may be loosened or bent in the conventional structure.

Therefore, in order to prevent such slackening and bending of the screen 10 due to aging, in the present embodiment, a substantially central portion of the upper inner rail 50 to which both end portions 50a and 50b are fixed is attached upward by the leaf spring 70. together are energized, the space a to permit deflection of the inner rail 50 above the inner rail 50 are formed. By doing so, even if the screen 10 is stretched due to its own weight or the like over time, as shown in FIGS. 4 and 5, the inner rail 10 bends upward due to the urging force of the leaf spring 70. The central portion of the screen 10 in the closed state is lifted. As a result, the tension of the screen 10 in the vertical direction is maintained, and the above-mentioned slack and bending can be prevented. When the screen 10 is wound around the winding shaft 2 of the winding box 3 and is completely open, only the urging force of the leaf spring 70 acts upward on the upper inner rail 50. The inner rail 50 is in a state of being bent most upward.

On the other hand, when the screen 10 is opened and closed by the operation stile 40, if the upper inner rail 50 remains bent upward as described above, the fastener member 11 of the screen also bends. It will slide along the inner rail 50. Then, an unnecessary load is applied to the fastener member 11, and not only the smoothness of the opening / closing operation of the screen 10 may be impaired, but also the life of the screen 10 may be affected. Therefore, in the present embodiment, as described above, the engaging hooks 41, 41 formed on the upper end portion of the operating stile 40 are engaged with the engaged convex portions 54, 54 of the upper inner rail 50. There is.

Therefore, during the opening / closing operation in which the operating stile 40 is in the intermediate position, the engaging hook 41 of the operating stile 40 is upward with respect to the engaged protrusions 54 and 54 of the upper inner rail 50, as shown in FIGS. 6 and 7. The force that pushes down the bent upper inner rail 50 downward against the upper inner rail 50 acts against the urging force of the leaf spring 70. As a result, when the screen 10 is opened and closed, the bending of the upper inner rail 50 is suppressed, so that the load on the fastener member 11 can be reduced and the screen 10 can be opened and closed smoothly.

Next, a second embodiment of the roll screen device according to the present invention will be described with reference to FIGS. 8 and 9. Here, components that are mainly different from those of the first embodiment will be described, and substantially the same components will be specifically described with the same reference numerals as those of the first embodiment in order to avoid duplicate description. Will be omitted.
The main difference between the roll screen device 1B according to the second embodiment and the roll screen device 1A according to the first embodiment is the configuration around the "lower guide member". That is, the roll screen device 1B according to the second embodiment is fixed to the lower opening frame of the building opening instead of the lower horizontal frame 32 and the lower inner rail 60 housed therein in the first embodiment. When the guide rail 81 and the screen 10 are unwound from the take-up box 3, as a "lower guide member" led out from the operation frame 40 onto the guide rail 81 along the lower end of the screen 10. It has a lower guide frame 80 and.

The guide rail 81 is fixed directly below the upper inner rail 50 in parallel with the guide rail 81, and a pair of concave grooves 81a and 81a are formed on both side surfaces extending in the longitudinal direction thereof. On the other hand, the lower guide frame 80 is formed so as to be curved downward as a whole by arranging a plurality of guide pieces 83 in a row and connecting the guide pieces 83, 83 adjacent to each other in a bendable manner. ing. Further, on the upper surface of the guide pieces 83, a slit groove 84 formed in the same manner as the slit groove 61 of the lower inner rail 60 is provided, and the slit groove 84 is unwound from the take-up box 3. The fastener member 12 on the lower end side of the screen 10 is engaged in the retracted state.

Further, a pair of through holes 83a are provided along the slit grooves 84 on both sides of the slit groove 84 at the upper end of the guide piece 83, and by inserting a flexible wire 85 into the pair of through holes 83a. As described above, the plurality of guide pieces 83 are connected to each other so as to be bendable. A concave groove-shaped rail receiver 83b extending in the longitudinal direction of the lower guide frame 80 is formed on the lower surface of these guide pieces 83, and the groove width of the rail receiver 83b is slightly larger than the rail width of the guide rail 81. It is formed large. By doing so, the rail receiver 83b can be engaged with the guide rail 81 when the screen 10 is opened / closed, that is, when the lower guide frame 80 is led out from the operation frame 40. It has become.

Further, a storage chamber 43 formed so as to extend in the vertical direction is formed inside the operation stile 40, and an inlet / outlet 44 leading to the storage chamber 43 is opened at the lower end of the operation stile 40. The lower guide frame 80 enters and exits from the storage chamber 43 in the operation frame 40 through the entrance and exit 44. Then, one end of the lower guide frame 80 is fixed to the lower end of the take-up box 3 as a fixed end, and the other end is arranged as a free end in the storage chamber 43 in the operation stile 40 through the inlet / outlet 44. ..

In the roll screen device 1B having such a configuration, when the operation frame 40 is slid laterally (leftward in the drawing) by horizontal pulling to close the screen, the lower guide frame 80 is unwound from the take-up box 3. While engaging the fastener member 12 on the lower end side of the screen 10 with the slit groove 84, the fastener member 12 is linearly led out from the operation frame 40 onto the guide rail 81 through the inlet / outlet 44. On the contrary, when the screen is opened, the screen is accommodated in the storage chamber 43 of the operation stile 40 while being curved upward from above the guide rail 81 through the entrance / exit 44.

Further, also in the present embodiment, similarly to the first embodiment, the substantially central portion of the upper inner rail 50 to which both end portions 50a and 50b are fixed is urged upward by the leaf spring 70 and is also urged upward. space a that allows the deflection of the inner rail 50 is formed above the inner rail 50. Therefore, even if the screen 10 is stretched due to its own weight or the like due to aging, as shown in FIGS. 4 and 5, the inner rail 10 is bent upward by the urging force of the leaf spring 70, and is in a closed state. The central portion of the screen 10 is lifted, and as a result, the vertical tension of the screen 10 is maintained and slackening and bending can be prevented.

However, at this time, since the lower guide frame 80 is not engaged with the guide rail 81 in the upward direction, the lower guide frame 80 is guided by the urging force of the leaf spring 70 in the state where the screen 10 is completely closed. It is necessary to give the lower guide frame 80 a certain weight so as not to rise from the rail 81. When the lower guide frame 80 is prevented from floating by providing an engaging protrusion on the opposite inner side wall of the rail receiver 83b and engaging with the pair of recessed grooves 81a, 81a of the guide rail 81, the lower guide frame 80 may be prevented from floating. One end of the lower guide frame 80 is fixed to the lower end of the operation rail 40 so that the other end side is accommodated in the take-up box 3 side, or the applicant previously proposed in Japanese Patent Application No. 2016-060448. , A guide piece configured to be detachably engaged with the guide rail may be used.

Further, also in the present embodiment, as in the first embodiment, when the operation rail 40 is in the intermediate position during the opening / closing operation, as shown in FIGS. 6 and 7, the engaging hook 41 of the operation rail 40 is the upper inner. By abutting the engaged protrusions 54, 54 of the rail 50 from above, the bending of the upper inner rail 50 is suppressed, and as a result, the load on the fastener member 11 can be reduced, and the screen 10 can be reduced. The opening and closing operation can be performed smoothly.

Although each embodiment of the roll screen device according to the present invention has been described above, the present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the claims. Needless to say.

1A, 1B Roll screen device 2 Winding shaft 3 Winding box 10 Screen 11,12 Fastener member 20 Upper horizontal frame 23 Side wall 24 Protruding wall 25 Opening 40 Operating stile 41 Engaging hook (engaging part)
50 Upper inner rail (upper guide member)
50a, 50b Both ends 51, 61, 84 Slit groove 53 Flange portion 54 Engagement convex portion (engaged portion)
60 Lower inner rail (lower guide member)
80 Lower guide frame (lower guide member)

Claims (4)

A flexible screen with guide fasteners attached to at least the top,
An upper horizontal frame extending in the horizontal direction and provided above the screen,
A take-up box that houses a take-up shaft that connects one end in the horizontal direction of the screen,
A slit groove is provided on the lower surface for slidably engaging the fastener member of the screen unwound from the take-up box in a retracted state, and the long upper guide member housed in the upper horizontal frame is formed. ,
An operating stile that is attached to the other end of the screen in the lateral direction and slides along the upper guide member.
It is a roll screen device equipped with
The upper horizontal frame is formed in a groove shape that opens downward, and has a pair of protruding walls that project inward from each side wall side along the longitudinal direction.
The upper guide member is formed with a pair of collar portions protruding outward from the respective side walls along the longitudinal direction.
In the upper horizontal frame, the upper guide member has its pair of flanges arranged on the upper side of the pair of protruding walls and its slit groove arranged between the pair of protruding walls, and both ends thereof. Is fixed to the upper horizontal frame, and by forming a space on the upper guide member, it is allowed to bend upward.
An urging member that applies an upward urging force to the upper guide member is provided between the flange portion and the projecting wall facing the flange portion .
A pair of engaging portions are formed on the upper end portion of the operating stile, and engaged portions are formed on both side walls of the upper guide member.
By engaging each of the pair of engaging portions with these engaged portions, the operating stile is slidably held with respect to the upper guide member.
A roll screen device characterized by that. It said biasing member, one end portion is fixed to either one of the flange portions or the protruded wall, an elongated leaf spring and the other end abuts on the other hand,
The leaf spring extends in the longitudinal direction of the upper guide member.
The roll screen apparatus according to claim 1 . The upper horizontal frame, have been formed in a groove shape opening downward, and upper outer lateral frame for securing the upper frame of a building opening, is detachably accommodated in the upper outer lateral frame, the lower It is composed of a groove-shaped upper inner horizontal frame that opens in
The upper guide member is housed inside the upper inner horizontal frame, and the pair of protruding walls are projected inward from the side walls of the upper inner horizontal frame.
The base end side of the portion of the upper inner horizontal frame in which the upper guide member is housed is made rotatable downward by a hinge, and the upper inner horizontal frame can be folded when the screen device is attached or detached .
The roll screen apparatus according to claim 1 or 2 . A fastener member for the guide is also attached to the lower end of the above screen.
The lower guide member in which the slit grooves are opened on the upper surface to engage the fastener member in the retaining state is provided me along the lower end of the screen which is fed from the winding box,
The roll screen apparatus according to any one of claims 1 to 3 .

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