Screen device

Abstract

The screen anti-falling part 9 is assembled on the inner side of one side wall 511 of each guide unit 51 in the depth direction D. The cover part 10 is assembled on the inner side of the other side wall 511 of each guide unit 51 in the depth direction D. The position in the height direction L of a tail end 1021 on the inner side of the depth direction D of the cover part 102 of the cover part 10 is higher than the position in the height direction L of a tail end 921 on the inner side of the depth direction D of the needle-shaped part 92 of the screen anti-falling part 9.

Description

Technical Field

[0001] This invention relates to screen devices used in curtains, blinds and other light-blocking and dimming units, screens, partitions and the like. Background Technology

[0002] Traditionally, such screen devices typically include: a hollow door frame and a storage frame, which are arranged opposite each other; a hollow sliding bar, which is arranged on the same plane as the door frame and the storage frame, and slides between the door frame and the storage frame towards the door frame side and the storage frame side; a screen, one end of which is fixed to the sliding bar, which is pulled out from inside the storage frame as the sliding bar slides towards the door frame side, and unfolds on the same plane as the door frame and the storage frame; and a sliding guide, which guides the sliding of the sliding bar.

[0003] As the aforementioned screen device, the applicant of this application has proposed the following solution (for example, see Patent Document 1). That is, regarding the screen device, the sliding direction of the sliding bar is set as the width direction, the direction orthogonal to the width direction in the same plane on which the door stop frame, storage frame, and sliding bar are configured is set as the height direction, and the direction orthogonal to both the width direction and the height direction is set as the depth direction. The door stop frame, storage frame, and sliding bar extend along the height direction, and the sliding guide is formed by connecting multiple guide units. Each guide unit has a pair of side walls arranged opposite each other in the depth direction and a bottom wall connecting the two side walls. On each side wall, a pin protruding outward in the depth direction is provided at one end in the width direction, and an opening is provided at the other end in the width direction. Regarding two adjacent guide units, each pin of the other guide unit is loosely engaged with each opening of the first guide unit, thereby allowing one guide unit to pivot freely relative to the other guide unit, thus giving the sliding guide a flexible nature.

[0004] In addition, regarding the sliding guide, a track portion is provided on the inner side of each side wall in the depth direction of each guide unit. The track portion extends along the line connecting the center of the pins of each guide unit in the connection direction of the guide unit. A support portion protruding inward in the depth direction is provided on the end edge of each side wall that is further away from the bottom wall in the height direction than the track portion.

[0005] Furthermore, the screen anti-detachment component has a base that is inserted between the track portion and the support portion of each guide unit of the sliding guide and extends in the width direction and has a bendable shape. It is equipped with a plurality of needle-like portions that protrude inward toward the depth direction of the sliding guide at intervals. The screen anti-detachment component can be freely assembled and disassembled onto the inner side of the sliding guide in the depth direction.

[0006] Furthermore, as the sliding bar slides toward the door frame side, the needle-like part of the screen anti-detachment component pierces into the lower end of the screen in the height direction, which is pulled out from the inside of the storage frame and unfolded in the width direction, so that the lower end of the screen in the height direction will not detach from the sliding guide. As the sliding bar slides toward the storage frame side, the needle-like part of the screen anti-detachment component detaches from the lower end of the screen in the height direction and stores the screen inside the storage frame.

[0007] Regarding the screen device described in Patent Document 1, a screen anti-detachment component is prepared in advance, with a needle-like portion corresponding to the material of the screen installed on the base. This anti-detachment component can be assembled into the inner side of the two side walls of each guide unit of the sliding guide in the depth direction. Therefore, the screen device described in Patent Document 1 has the following advantages: as the sliding bar slides in the width direction, the screen unfolds in the width direction; and when stored in the storage frame, even if the needle-like portion of the screen anti-detachment component repeatedly inserts and detaches relative to the lower end of the screen in the height direction, damage to the lower end of the screen in the height direction can be suppressed.

[0008] On the other hand, the multiple needle-like portions of the screen anti-detachment component are arranged at intervals, thus creating gaps between adjacent needle-like portions. Therefore, foreign objects such as dust, sand, and dirt may penetrate between the two sidewalls of each guide unit of the sliding guide and accumulate on the vertical surface of the bottom wall of each guide unit of the sliding guide. Furthermore, if the screen is subjected to external pressure such as wind pressure from the outside to the inside in the depth direction, it will flex in the direction of the external pressure. However, it cannot be guaranteed that the needle-like portion of any of the screen anti-detachment components at the lower vertical end of the flexed screen will not detach from the lower vertical end of the screen. If the needle-like portion of the screen anti-detachment component detaches from the lower vertical end of the screen, the anti-detachment of the lower vertical end of the screen relative to the sliding guide cannot be maintained.

[0009] Existing technical documents

[0010] Patent documents

[0011] Patent Document 1: Japanese Patent Application Publication No. 2021-139184 Summary of the Invention

[0012] In view of the above problems, the objective of the present invention is to provide a screen device that can effectively suppress wear on the lower end of the screen in the height direction caused by repeated insertion and detachment of the needle-like part of the screen anti-detachment component, suppress the accumulation of foreign matter on the upper surface of the bottom wall of each guide unit of the sliding guide in the height direction, and maintain the anti-detachment of the lower end of the screen in the height direction relative to the sliding guide even if the screen is flexed by external pressure.

[0013] To solve the above-mentioned problems, the screen device of the present invention includes: a hollow door stop frame and a storage frame, which are arranged opposite to each other; a hollow sliding bar, which is arranged on the same plane as the door stop frame and the storage frame, and slides between the door stop frame and the storage frame towards both the door stop frame side and the storage frame side; a screen, one end of which is fixed to the sliding bar, which is pulled out from the inside of the storage frame as the sliding bar slides towards the door stop frame side, and unfolds on the same plane as the door stop frame and the storage frame; and a sliding guide member, which guides the sliding of the sliding bar. Regarding the screen device, the sliding direction of the sliding bar is set as the width direction, and the direction orthogonal to the width direction in the same plane where the door stop frame, the storage frame, and the sliding bar are arranged is set as the height direction. The direction is set as the depth direction, and the door stop frame, storage frame, and sliding strip extend along the height direction. The sliding guide is formed by connecting multiple guide units. Each guide unit has a pair of side walls arranged opposite each other in the depth direction and a bottom wall connecting the two side walls. On each side wall, a pin protruding outward in the depth direction is provided at one end in the width direction, and an opening is provided at the other end in the width direction. Regarding two adjacent guide units, the pins of one guide unit are loosely engaged with the openings of one guide unit, so that one guide unit can pivot freely relative to the other guide unit. The sliding guide has flexibility. Regarding the sliding guide, a track portion is provided on the inner part of each side wall in the depth direction of each guide unit. The track portion extends along the depth direction of the guide unit. The connecting line of the pins of each guide unit extends along the connecting direction of the guide unit. Support portions protruding inwards in the depth direction are provided at the end edges of each side wall that are further away from the bottom wall in the height direction than the track portion. The screen anti-detachment component has multiple needle-like portions protruding inwards in the depth direction of the sliding guide, spaced apart from the track portion and support portion of each guide unit inserted into the sliding guide and extending in the width direction with a flexible base. This screen anti-detachment component is detachably assembled and disassembled into the inner depth direction of the sliding guide. As the sliding bar slides towards the door frame, the needle-like portions of the screen anti-detachment component pierce the lower end of the screen in the height direction, which is pulled out from inside the storage frame and unfolds in the width direction, preventing the lower end of the screen in the height direction from slipping out of the sliding guide. The movable guide detaches, and as the sliding bar slides towards the storage frame, the needle-like portion of the screen anti-detachment component detaches from the lower end of the screen in the height direction, thus storing the screen inside the storage frame. The feature is that a roller, which has a built-in helical spring that accumulates elasticity when the sliding bar slides towards the door frame and is freely rotatable and extends along the height direction, is stored inside the storage frame. The other end of the screen is fixed to the height direction portion of the outer periphery of the roller. The roller, due to the release of the elasticity accumulated in the helical spring, causes the screen to roll outwards. Regarding the sliding guide, one end is a free end stored inside the sliding bar, and the other end is fixed to the lower end of the storage frame in the height direction. As the sliding bar slides towards the door frame, the sliding guide is pulled out from the lower end of the sliding bar towards the storage frame.The portion of the sliding guide pulled out from the sliding bar maintains straightness in the width direction. Furthermore, as the screen is wound towards the outer periphery of the roller due to the release of the spring force stored in the helical spring, the sliding bar slides towards the receiving frame side. The sliding guide is received inside the sliding bar from its lower end in the height direction and moves upward in the height direction within the sliding bar. The screen anti-detachment component is fitted inside the depth direction of one side wall of each guide unit of the sliding guide. The cover component, located between the track portion and the support portion of each guide unit of the sliding guide and extending in the width direction, has a strip-shaped cover portion protruding inward in the depth direction of the sliding guide, and has a buckling... The cover component is fitted inside the depth direction of the other side wall of each guide unit of the sliding guide. The height direction position of the end of the cover portion inside the depth direction is higher than the height direction position of the end of the needle-shaped portion inside the depth direction of the screen anti-detachment component. When the screen is pulled out and unfolded from inside the storage frame as the sliding bar slides towards the door frame side, the lower end of the screen in the height direction is prevented from detaching from the sliding guide between the two side walls of each guide unit of the sliding guide portion pulled from the lower end of the sliding bar towards the storage frame side by the insertion of the needle-shaped portion of the screen anti-detachment component, and is configured to contact the end of the cover portion inside the depth direction of the cover component.

[0014] According to the present invention, the screen anti-detachment component is assembled inside the depth direction of one side wall of each guide unit of the sliding guide. Therefore, as the sliding bar slides in the width direction, the needle-like portion of the screen anti-detachment component pierces into the lower end of the screen in the height direction, which is unfolded in the width direction and housed inside the storage frame, and then disengages. Even with repeated piercing and disengagement, wear on the lower end of the screen in the height direction can be effectively suppressed. Furthermore, the cover component is assembled inside the depth direction of the other side wall of each guide unit of the sliding guide. Therefore, the cover portion of the cover component covers the bottom wall of each guide unit of the sliding guide from above. Thus, the accumulation of foreign matter such as dust, sand, and dirt on the upper surface of the bottom wall of each guide unit of the sliding guide in the height direction can be suppressed. Furthermore, as the sliding bar slides in the width direction, the screen unfolded in the width direction is subjected to external pressure such as wind pressure from the outside to the inside in the depth direction. Even if the screen flexes and the needle-shaped part of the screen anti-detachment component detaches from the lower end of the screen in the height direction, if the end of the cover part in the depth direction contacts the lower end of the screen in the height direction, the cover part of the cover part can also move the lower end of the screen in the height direction toward the needle-shaped part of the screen anti-detachment component. As a result, the needle-shaped part of the screen anti-detachment component remains inserted into the lower end of the screen in the height direction, or even if it detaches, it re-inserts itself to maintain the anti-detachment of the lower end of the screen in the height direction relative to the sliding guide. Moreover, the height direction position of the inner end of the cover part in the depth direction is higher than the height direction position of the inner end of the needle-shaped part in the depth direction, so it is possible to reliably realize the movement of the lower end of the screen in the height direction toward the needle-shaped part of the screen anti-detachment component based on the cover part of the cover part.

[0015] In this invention, preferably, the cover member is made of a material having a hardness that prevents wear on the screen and causes the lower end of the screen in the height direction to move toward the needle-shaped portion of the screen anti-detachment member when the end of the cover member inside the depth direction contacts the screen. Accordingly, wear on the lower end of the screen in the height direction, which unfolds in the width direction as the sliding bar slides and is housed inside the storage frame, can be more effectively suppressed. Furthermore, movement of the lower end of the screen in the height direction toward the needle-shaped portion of the screen anti-detachment member based on the cover member can be achieved more effectively.

[0016] Furthermore, in this invention, preferably, the cover portion of the cover member extends obliquely upward in the height direction from the boundary portion with the supported portion to the end portion inside the depth direction. Accordingly, when the unfolded screen is subjected to external pressure such as wind pressure from the outside to the inside in the depth direction, and the needle-shaped portion of the screen anti-detachment member flexes and detaches from the lower end portion of the screen in the height direction, movement of the lower end portion of the screen in the height direction toward the needle-shaped portion side of the screen anti-detachment member can be more reliably realized.

[0017] Furthermore, in this invention, preferably, a tension member is provided, having one end and another end. One end is fixed to the free end of the sliding guide and extends through the interior of the sliding bar, pulling it out from the upper end of the sliding bar in the height direction toward the door frame, and then pulling it in from the upper end of the door frame in the height direction into the interior of the door frame. The other end is fixed to the inner surface of the door frame. Accordingly, for a screen device that winds the screen toward the outer periphery of a roller housing a helical spring inside a storage frame, when the sliding bar slides toward the door frame, even if the force exerted on the sliding bar toward the storage frame by the screen due to the accumulated elasticity of the helical spring, the tension member can cooperate with the sliding bar to make the sliding bar slide parallel to both the door frame and the storage frame. The parallel sliding of the sliding bar relative to both the door frame and the storage frame can also be achieved when the sliding bar slides toward the storage frame. In addition, the arrangement of the tension member is simplified, and the manufacture of the screen device becomes easier. Attached Figure Description

[0018] Figure 1 This is a partial sectional view showing one embodiment of the screen device of the present invention.

[0019] Figure 2 yes Figure 1 A cross-sectional view of the door frame and sliding strip of the screen device shown in the width direction.

[0020] Figure 3 yes Figure 1 A cross-sectional view of the storage frame of the screen device shown in the figure, along its width.

[0021] Figure 4 (a) is shown Figure 1 A perspective view of the main part of the sliding guide of the screen device shown, located on the side of the storage frame. Figure 4 (b) is Figure 4 (a) is a cross-sectional view of the sliding guide in the height direction.

[0022] Figure 5 (a) is Figure 4 The diagram shows a three-dimensional view of the cover component. Figure 5 (b) is Figure 5 (a) shows the front view of the cover component.

[0023] Figure 6 (a) is an exploded perspective view of the door stop frame. Figure 6 (b) is a sectional view of the main part showing the way the tension member passes through and is fixed relative to the door stop frame. Detailed Implementation

[0024] Reference Figure 1The screen device SA of this embodiment includes: a hollow door stop frame 1 and a storage frame 2, which are arranged opposite to each other; and a hollow sliding bar 3, which is arranged on the same plane as the door stop frame 1 and the storage frame 2, and slides between the door stop frame 1 and the storage frame 2. Here, the sliding direction of the sliding bar 3 is defined as the width direction W of the screen device SA, the direction orthogonal to the width direction W in the same plane where the door stop frame 1, the storage frame 2, and the sliding bar 3 are arranged is defined as the height direction L of the screen device SA, and the direction orthogonal to both the width direction W and the height direction L is defined as the depth direction D of the screen device SA. Regarding... Figure 1 The screen device SA shown has a width direction W and a height direction L that correspond to the horizontal direction H and the vertical direction V, respectively. Therefore, the door stop frame 1, the storage frame 2, and the sliding bar 3 all extend along the vertical direction V. The door stop frame 1 and the storage frame 2 are arranged on the same vertical plane, and the sliding bar 3 slides along the horizontal direction H within the same vertical plane on which the door stop frame 1 and the storage frame 2 are arranged.

[0025] In addition, the screen device SA includes: a screen 4, one end of which is fixed to a sliding bar 3, which is pulled out from inside the storage frame 2 as the sliding bar 3 slides toward the door frame 1 and unfolds on the same vertical plane as the door frame 1 and the storage frame 2; and a sliding guide 5, which guides the sliding of the sliding bar 3.

[0026] Reference Figure 2 Regarding the door stop frame 1, one end face in the horizontal direction H on the side of the sliding bar 3 is open, allowing the sliding bar 3, which slides towards the door stop frame 1, to be internally accommodated at one end face in the horizontal direction H of the door stop frame 1. At the other end face in the horizontal direction H of the door stop frame 1 on the opposite side of the open side, a pair of support plates 11, 11, which protrude inward in the horizontal direction H of the door stop frame 1, extend in the vertical direction V, and have their ends bent inward in the depth direction D, are spaced apart in the depth direction D of the door stop frame 1 and are disposed at the center of the depth direction D. In the hollow portion surrounded by the pair of support plates 11, 11 and the inner surface of the door stop frame 1 located between the support plates 11, 11, one end is inserted from above or below the door stop frame 1 to install the first retaining member 12 inside the other end face in the horizontal direction H of the door stop frame 1. In the portion of the pair of support pieces 11, 11 that bends inward in the depth direction D, a first protrusion 13 is provided in the portion adjacent to the inner side of the door stop frame 1 in the horizontal direction H, bending outward in the depth direction D and extending in the vertical direction V. Furthermore, at the other end of the door stop frame 1, a second protrusion 14 is provided, protruding inward from two opposing inner surfaces in the depth direction D and extending in the vertical direction V, and opposing the first protrusion 13. The first protrusion 13 and the second protrusion 14 divide the inner side of the other end of the door stop frame 1 in the horizontal direction H into a first insertion portion 15 and a second insertion portion 16.

[0027] The sliding bar 3 includes: a hollow main body 31; and a hollow first screen mounting portion 32, which protrudes from the main body 31 toward the opposite side of the door frame 1 in the horizontal direction H. One end of the main body 31 located on the side of the door frame 1 in the horizontal direction H is provided as an open surface 311, and a cover 312 that covers the open surface 311 from the outside in the horizontal direction H is detachably mounted to this end in the horizontal direction H. A recessed portion recessed inward in the horizontal direction H is provided at the center of the cover 312 in the depth direction D, and a second retaining member 313 protruding outward in the horizontal direction H of the main body 31 is installed by inserting one end of the cover 31 into the recess from above or below the main body 31. The first retaining member 12 of the door stop frame 1 and the second retaining member 313 of the main body 31 of the sliding bar 3 can be made of magnets or components with built-in magnets. The second retaining member 313 is attracted to the first retaining member 12 by magnetic force, which determines the sliding limit of the sliding bar 3 sliding towards the door stop frame 1. The sliding of the sliding bar 3 stops at the sliding limit on the door stop frame 1, and the sliding bar 3 is stably kept in the stopped state of the door stop frame 1.

[0028] A pair of third protrusions 321, 321 protruding inward in the depth direction D are provided at the end of the first screen mounting portion 32 located on the opposite side of the main body 31 in the horizontal direction H. A first partition wall 322 extending in the vertical direction V is provided at a position further inward in the horizontal direction H than the third protrusions 321, 321. The pair of third protrusions 321, 321, the two opposing inner surfaces of the first screen mounting portion 32 in the depth direction D, and the first partition wall 322 define a storage portion 323 that opens outward in the horizontal direction H in the first screen mounting portion 32. A first fixing member 41 is installed at one end of the screen 4 that is fixed to the sliding bar 3. The first fixing member 41 passes between the pair of third protrusions 321, 321 and is inserted into the storage portion 323 of the first screen mounting portion 322 of the sliding bar 3, and is engaged with the pair of third protrusions 321, 321, thereby fixing one end of the screen 4 to the sliding bar 3.

[0029] Return to Figure 1A portion of the horizontal H-direction end face of the storage frame 2, opposite the door stop frame 1, is open. Furthermore, a roller 21 extending in the vertical direction V is housed within the storage frame 2. The roller 21 comprises: a cylindrical body 211; a bearing 212 embedded in the lower end of the body 211; and a rotating shaft 213 fixed to the upper end of the bearing 212 and extending to the midpoint of the vertical direction V of the roller 21. A first cap 214 with a threaded groove engraved on its upper end is embedded in the upper end of the roller 21. A cover 215 with an opening for inserting the upper end of the first cap 214 is disposed at the upper end of the storage frame 2, and the cover 215 is fixed to the upper end of the storage frame 2 by means of screws 216. Therefore, the lower end of the roller 21 is supported by the bearing 212, and the upper end is supported by the first cap 214 in the storage frame 2, thus allowing it to rotate freely about the rotating shaft 213. A helical spring 217 is built into the roller 21, and the helical spring 217 is arranged on the radially outer side of the rotating shaft 213.

[0030] Reference Figure 3 A groove 211a extending in the vertical direction V is formed on the outer peripheral surface of the main body 211 of the roller 21. A second partition wall 211b extending in the vertical direction V along the groove 211a is provided inside the main body 211 of the roller 21, on the side of the groove 211a. The second partition wall 211b divides the interior of the main body 211 of the roller 21 into a second screen mounting frame portion 211c. A second fixing member 42 is mounted on the other end of the screen 4, opposite to the end mounted to the sliding bar 3, located in the horizontal direction H. The second fixing member 42 passes through the groove 211a and is inserted into the interior of the second screen mounting portion 211c and locked in place, thereby fixing the other end of the screen 4 to the main body 211 of the roller 21. The screen 4 can be wound onto the outer peripheral surface of the main body 211 of the roller 21.

[0031] Return to Figure 1 The coil spring 217 is configured to accumulate elastic force when the sliding bar 3 slides toward the door frame 1. Therefore, if the elastic force accumulated in the coil spring 217 is released, the screen 4 is wound toward the outer periphery of the roller body 211, causing the sliding bar 3, which is fixed to the aforementioned end of the screen 4, to slide toward the storage frame 2. If the first screen mounting part 32 abuts against the storage frame 2, the sliding of the sliding bar 3 toward the storage frame 2 stops.

[0032] Such a screen device SA is installed, for example, at the opening of a window frame, door frame, etc. in a building. In this case, the door stop frame 1 is fixed to the frame at one end of the opening in the horizontal direction H, and the storage frame 2 is fixed to the frame at the other end of the opening in the horizontal direction H. When the sliding bar 3 slides towards the door stop frame 1, the screen 4 is pulled out from inside the storage frame 2 and unfolds inside the opening, thereby covering the opening. When the sliding bar 3 slides towards the storage frame 2, the screen 4 is rolled up towards the outer periphery of the main body 211 of the roller 21 and stored inside the storage frame 2, thereby opening the opening. To facilitate smooth sliding of the sliding bar 3 in the horizontal direction H, an upper rail 6 extending in the horizontal direction H is provided at the upper end of the screen device SA at the opening, and a lower rail 7 extending in the horizontal direction H is provided at the lower end of the opening. The upper rail 6 is a hollow component with a U-shaped cross-section in the vertical direction V, and the sliding bar 3 is inserted into the upper rail 6. Additionally, when the sliding bar 3 slides towards the door frame 1, the upper end of the screen 4, which is pulled out and unfolded from the storage frame 2, is also inserted into the interior of the upper track 6. The lower track 7 is a straight component extending in the horizontal direction H. The wheel 33 is supported on the lower end of the body 31 of the sliding bar 3 in the depth direction D and is configured to rotate freely. As the sliding bar 3 slides in the horizontal direction H, the wheel 33 rolls on the lower track 7.

[0033] As described above, the sliding guide 5 guides the horizontal sliding of the sliding bar 3 in the direction H. Furthermore, the sliding guide 5 assists in ensuring that the horizontal sliding of the sliding bar 3 in the direction H is parallel to the door stop frame 1 and the storage frame 2. (Refer to...) Figure 4 In (a) and (b), the sliding guide 5 is formed by connecting multiple guide units 51. Each guide unit 51 includes: a pair of sidewalls 511, 511, which are arranged opposite each other in the depth direction D; and a bottom wall 512, which connects the two sidewalls 511, 511. At one end of each sidewall 511 in the horizontal direction H, a pin 511a is provided that protrudes outward in the depth direction D, and at the other end in the horizontal direction H, an opening 511b is provided. The pin 511a and the opening 511b are at the same height at the upper end of each guide unit 51 relative to the lower end of the sidewall 511. Regarding the sliding guide 5, as two adjacent guide units 51, 51, each pin 511a of another guide unit 51 loosely engages with each opening 511b of one guide unit 51, thereby allowing one guide unit 51 to pivot freely relative to the other guide unit 51, thus giving the sliding guide 5 a buckling property.

[0034] Specifically, a first recessed portion 511c is formed on each sidewall 511 of each guide unit 51 and around each pin 511a, recessed inward in the depth direction D. The length of each pin 511a is the same as the recessed amount of the first recessed portion 511c, and the outer diameter of each pin 511a and the inner diameter of each opening 511b are such that each pin 511a loosely engages with each opening 511b. In addition, a first cut portion 511d is formed by cutting around each opening 511b on each sidewall 511 and retaining the upper edge of each sidewall 511, and the upper edge is provided as a protruding piece 511e that extends separately from the opening 511b. Furthermore, a raised ridge 511f is provided at the lower end of the first recessed portion 511c. Furthermore, at the lower end of each sidewall 511 and in the portion below the first recess 511c, a second recess 511g is formed, recessed by the same amount as the first recess 511c. Moreover, regarding each guide unit 51, the bottom wall 512 is positioned corresponding to the upper end of the second recess 511g of the two sidewalls 511, 511.

[0035] When two adjacent guide units 51, 51 are connected, the end of another guide unit 51 located on the pin 511a side of the two side walls 511, 511 is inserted into the end of one guide unit 51 located on the opening 511b side of the two side walls 511, 511. This insertion allows each pin 511a of the other guide unit 51 to loosely engage with each opening 511b of the one guide unit 511. By repeatedly performing this connection, a sliding guide 5 is formed. Regarding the sliding guide 5, the pivot rotation range of two adjacent guide units 51, 51 begins at the position where the lower ends of the two side walls 511, 511 of one guide unit 51 and the lower ends of the two side walls 511, 511 of the other guide unit 51 contacts, and ends at the position where the protrusions 511e of the two side walls 511, 511 of one guide unit 51 and the ridges 511f of the first recesses 511c formed on the two side walls 511, 511 of the other guide unit 51 contacts. Through this pivot rotation range of the two adjacent guide units 51, 51, the sliding guide 5 possesses a buckling property that allows it to stand upright from the horizontal direction H.

[0036] Furthermore, when two adjacent guide units 51, 51 are connected, the second recesses 511g formed on the two side walls 511, 511 of the other guide unit 51 are inserted into the inner side of the depth direction D of the two side walls 511, 511 of the first guide unit 51. Therefore, regarding the portion of the sliding guide 5 extending in the horizontal direction H, the outer surfaces of the depth direction D at the lower end of each side wall 511 of each guide unit 51 are arranged to be coplanar. In addition, as described above, the length of each pin 511a is the same as the recess amount of the first recess 511c, therefore, the outer end face of the depth direction D of each pin 511a is arranged to be coplanar with the outer surface of the depth direction D at the upper end of each side wall 511.

[0037] Furthermore, regarding the two sidewalls 511, 511 of each guide unit 51, the boundary portions of the upper and lower ends are recessed inward in the depth direction D to form a recess 511h.

[0038] Return to Figure 1 One end of the sliding guide 5 is a free end 513 housed inside the sliding bar 3, and the other end is a fixed end 514 fixed to the lower end of the storage frame 2. As the sliding bar 3 slides in the horizontal direction H toward the door frame 1, the sliding guide 5 is pulled out from the lower end of the sliding bar 3 toward the storage frame 2, and the portion of the sliding guide 5 pulled out from the sliding bar 3 maintains straightness in the horizontal direction H. In addition, as the sliding bar 3 slides toward the storage frame 2 when the spring force stored in the coil spring 217 is released and the screen 4 is rolled up toward the outer peripheral surface of the main body 211 of the roller 21, the sliding guide 5 is housed inside the sliding bar 3 from the lower end of the sliding bar 3 and bends upward, and moves upward inside the sliding bar 3. To facilitate the smooth retraction of the sliding guide 5 into the sliding bar 3 based on buckling, and the subsequent pull-out of the retracted sliding guide 5 from the sliding bar 3, arched protrusions 34 protruding inward in the depth direction D are provided on the inner side of the lower end of the sliding bar 3. The protrusions 34 can be inserted into the recesses 511h formed in each guide unit 51 of the sliding guide 5, and the protrusions 34 guide the pivotal rotation of each guide unit 51 by inserting into the recesses 511h.

[0039] Furthermore, an adjuster 8, which moves up and down within the sliding bar 3, is connected to the free end 513 of the sliding guide 5. A rod-shaped counterweight 81 extending up and down is built into the adjuster 8. The gravity acting on the counterweight 81 acts on the portion of the sliding guide 5 housed within the sliding bar 3. When the sliding bar 3 slides towards the door frame 1, it overcomes the elastic force stored in the coil spring 217, assisting in smoothly pulling the sliding guide 5 from within the sliding bar 3 towards the storage frame 2, thus providing a sense of ease and stability for the sliding bar 3 towards the door frame 1. Additionally, when the screen 4 is housed within the storage frame 2, the gravity acting on the counterweight 81 creates moderate resistance to the housing of the sliding guide 5 within the sliding bar 3, thus assisting in the non-abrupt winding of the screen 4 towards the outer periphery of the roller 21 body 211.

[0040] As described above, the fixed end 514 of the sliding guide 5 is fixed to the lower end of the storage frame 2. A pair of pins, identical to the pins 511a of each sidewall 511 of each guide unit 51 of the sliding guide 5, protruding outwards in the depth direction D, are provided at the lower end of the storage frame 2. Openings 511b in the two sidewalls 511 of the guide unit 51 located at the end of the fixed end 514 of the sliding guide 5 are loosely engaged with the aforementioned pins.

[0041] Return to Figure 4 In (a) and (b), a track portion 511i is provided on the sliding guide 5 and on the inner portion of each side wall 511 of each guide unit 51 in the depth direction D. The track portion 511i extends along a line connecting the centers of the pins 511a of each guide unit 51 in the connection direction of the guide units 51. In addition, a support portion 511j protruding inward in the depth direction D is provided at the end edge of each side wall 511 that is further upward from the bottom wall 512 than the track portion 511i. The support portion 511j is arranged opposite to the track portion 511i in the vertical direction. Specifically, the support portion 511j is provided only on the portion on the pin 511a side of each guide unit 51. In addition, the support portion 511j has an L-shaped main view shape and is configured to include: a locking piece 511j1, which hangs down parallel to the side wall 511; and an inclined piece 511j2, which extends from the inner side of the side wall 511 in the depth direction D toward the track portion 511i with a downward slope.

[0042] In addition, the screen device SA includes a screen anti-detachment component 9 and a cover component 10. Regarding the screen anti-detachment component 9, a plurality of needle-like portions 92 protruding inward in the depth direction D of the sliding guide 5 are installed at intervals on the base 91 that is inserted between the track portion 511i and the support portion 511j of each guide unit 51 of the sliding guide 5 and extends in the horizontal direction H.

[0043] from Figure 1 The base 91 of either the free end 513 or the fixed end 514 of the sliding guide 5 is inserted between the track portion 511i and the support portion 511j of each guide unit 51, thereby assembling the screen anti-detachment component 9 inside the depth direction D of one side wall 511 of each guide unit 51 of the sliding guide 5. The track portion 511i of each guide unit 51 guides the insertion of the base 91 when assembling the screen anti-detachment component 9. In the assembled state of the screen anti-detachment component 9, the base 91 is supported between the track portion 511i and the support portion 511j of each guide unit 51, and all the needle-like portions 92 protrude from one side wall 511 of each guide unit 51 inside the depth direction D. The base 91 of the screen anti-detachment component 9, which is locked in place by the locking piece 511j1 of the support portion 511j, is inclined downward along the inclined piece 511j2. Therefore, all needle-like portions 92 are also inclined toward the bottom wall 512 of each guide unit 51.

[0044] As described above, the base 91 of the screen anti-detachment component 9 is flexible, and therefore bends as the pivot of each guide unit 51 of the sliding guide 5 rotates. That is, as Figure 1 As shown, when the protrusion 34 of the sliding guide 5 guides the recess 511h, causing each guide unit 51 to pivot upwards, the screen anti-detachment member 9 bends upwards inside the sliding bar 3. Furthermore, as described above, regarding each guide unit 51 of the sliding guide 5, the track portion 511i extends along the line connecting the centers of the pins 511a in the connection direction. Therefore, the base 91 of the screen anti-detachment member 9 also extends along the line connecting the centers of the pins 511a of each guide unit 51 in the connection direction. Therefore, the bending of the sliding guide 5 can be smoothly achieved without being hindered by the assembly of the screen anti-detachment member 9. Similarly, the pulling out of the sliding guide 5 from the lower end of the sliding bar 3 towards the storage frame 2, accompanying the sliding of the sliding bar 3 towards the door stop frame 1, can also be smoothly achieved. Furthermore, as described above, the pins 511a of each guide unit 51 of the sliding guide 5 are provided at the upper end of each guide unit 51. Therefore, the pins 511a are configured to move upward from the lower end of the opening provided for the screen device SA. As a result, the pins 511a are less susceptible to the effects of dust, sand, dirt, etc., which tend to accumulate at the lower end of the opening. This, combined with the smooth bending of the sliding guide 5, allows for easy and stable sliding of the sliding strip 3.

[0045] Furthermore, when disassembling the screen anti-detachment component 9, simply from... Figure 1 The base 91 can be pulled out from between the track portion 511i and the support portion 511j of each guide unit 51 by either the free end 513 or the fixed end 514 of the sliding guide 5.

[0046] Furthermore, each guide unit 51 of the sliding guide 5 can be a one-piece molded product made of hard resin. The screen 4 can be made of resin-woven fabric, mesh, etc. The base 91 of the screen anti-detachment component 9 can be made of soft resin, a lightweight metal such as aluminum, etc. The needle-like parts 92 can be formed of a suitable material corresponding to the type of screen 4. Additionally, the size of each needle-like part 92 and the spacing between needle-like parts 92 can be appropriately set corresponding to the type of screen 4. For example, when the screen 4 is a woven fabric or mesh, the size of each needle-like part 92 can be set to be able to enter the woven holes or mesh, and the spacing between each needle-like part 92 can be set to the same spacing as between woven holes or mesh. Furthermore, the protrusion 34 protruding from the inner side of the sliding bar 3 in the depth direction D can be formed of a material that makes it difficult for each guide unit 51 to wear even if repeatedly inserted into the recesses 511h of each guide unit 51 of the sliding guide 5.

[0047] The cover component 10 is a component with a strip-shaped cover portion 102 protruding inward in the depth direction D of the sliding guide 5, which is provided on the supported portion 101 and extends horizontally between the track portion 511i and the support portion 511j of each guide unit 51 inserted into the sliding guide 5. It has the same flexibility as the screen anti-detachment component 9. The cover component 10 is assembled to the inner side in the depth direction D of the other side wall 511 of each guide unit 51 of the sliding guide 5, where the screen anti-detachment component 9 is not assembled.

[0048] Reference Figure 5 In (a) and (b), regarding the cover member 10, the supported portion 101 is configured to include: a supported piece 1011 extending in the horizontal direction H; and a drooping piece 1012 bent downward from the inner end of the supported piece 1011 in the depth direction D. The cover portion 102 extends obliquely upward from the lower end of the drooping piece 1012 in the depth direction D towards the inside. That is, the cover portion 102 extends obliquely upward from the boundary portion with the supported portion 101 to the end 1021 in the depth direction D. Furthermore, regarding the cover member 10, the supported portion 101 and the cover portion 102 are formed integrally.

[0049] This cover component 10 is also related to Figure 4 The anti-detachment component 9 shown in (a) and (b) is the same, from Figure 1Either the free end 513 or the fixed end 514 of the sliding guide 5 shown is inserted by the support portion 101 between the track portion 511i and the support portion 511j of each guide unit 51, thereby assembling the cover member 10 inside the depth direction D of the other side wall 511 of each guide unit 51 of the sliding guide 5. The track portion 511i of each guide unit 51 guides the insertion of the supported portion 101 when assembling the cover member 10. In the assembled state of the cover member 10, the supported piece 1011 of the supported portion 101 is inserted between the track portion 511i and the support portion 511j of each guide unit 51, and the drooping piece 1012 contacts the inner surface of the side wall 511 of each guide unit 51 in the depth direction D and is supported by the side wall 511 of each guide unit 51. The cover portion 102 is disposed above the bottom wall 512 of each guide unit 51. With this arrangement, the cover portion 102 of the cover member 10 covers the portion of the bottom wall 512 of each guide unit 51 that is opposite to the cover portion 102 in the vertical direction from above.

[0050] As described above, the cover component 10 is flexible, and therefore, like the screen anti-detachment component 9, it bends in accordance with the pivot rotation of each guide unit 51 of the sliding guide 5. Therefore, the bending of the sliding guide 5 can be smoothly achieved without being hindered by the assembly of the cover component 10. Similarly, the pulling out of the sliding guide 5 from the lower end of the sliding bar 3 towards the storage frame 2, accompanying the sliding of the sliding bar 3 towards the door stop frame 1, can also be smoothly achieved.

[0051] Furthermore, when disassembling the cover component 10, simply from... Figure 1 The sliding guide 5 can be pulled out from either the free end 513 or the fixed end 514 of the sliding guide 5, and can be pulled out from between the track portion 511i and the support portion 511j of each guide unit 51 by the support portion 101.

[0052] Furthermore, regarding the cover component 10, the cover portion 102 extends obliquely upward from the drooping piece 1012 of the supported portion 101. Regarding the screen anti-detachment component 9 fitted to one side wall 511 of each guide unit 51 of the sliding guide 5, as described above, all needle-like portions 92 protrude obliquely downward toward the bottom wall 512 of each guide unit 51. Therefore, as... Figure 4 As shown in (b), when the cover member 10 is assembled to the other side wall 511 of each guide unit 51 of the sliding guide member 5, the vertical position of the end 1021 of the cover portion 102 of the cover member 10 is higher than the vertical position of the end 921 of all the needle portions 92 of the screen anti-detachment member 9.

[0053] As the slider moves in direction 3 Figure 1 When the sliding screen 4 is pulled out and unfolded from the main body 211 of the roller 21 housed inside the storage frame 2, as shown on the side of the door frame 1, it appears as if... Figure 4As shown in (b), the lower end of the screen 4 in the vertical direction is inserted between the two side walls 511, 511 of each guide unit 51 of the portion of the sliding guide 5 that is pulled out from the lower end of the sliding bar 3 toward the storage frame 2. As a result, the needle-like portion 92 of the screen anti-detachment member 9 pierces into the lower end of the screen 4 inserted between the two support portions 511j, 511j of each guide unit 51. The needle-like portion 92 pierces in, preventing the lower end of the screen 4 from detaching from the sliding guide 5. In addition, the inner end 1021 of the cover portion 102 of the cover member 10 in the depth direction D is configured to contact the lower end of the screen 4. On the other hand, as the sliding bar 3 slides toward the storage frame 2, the needle-like portion 92 of the screen anti-detachment member 9 detaches from the lower end of the screen 4, thereby winding the screen 4 toward the outer peripheral surface of the main body 211 of the roller 21 and storing it inside the storage frame 2.

[0054] Thus, as the sliding bar 3 slides horizontally in the direction H, the needle-like portion 92 of the screen anti-detachment component 9 pierces into the lower end of the screen 4 and then detaches. Even with repeated piercing and detachment, wear on the lower end of the screen 4 can be effectively suppressed. In addition, by using the cover portion 102 of the cover component 10 to cover the bottom wall 512 of each guide unit 51 of the sliding guide 5 from above, it is possible to prevent the accumulation of foreign objects such as dust, sand, and dirt on the upper surface of the bottom wall 52 of each guide unit 51 of the sliding guide 5. Furthermore, as the sliding bar 3 slides horizontally in the direction H, the screen 4, which unfolds in the horizontal direction H, is subjected to external pressure such as wind pressure from the outside to the inside in the depth direction D. Even if the screen 4 flexes and causes the needle-shaped portion 92 of the screen anti-detachment component 9 to detach from the lower end of the screen 4, if the inner end 1021 of the cover portion 102 of the cover component 10 in the depth direction D contacts the lower end of the screen 4, the cover portion 102 of the cover component 10 can also cause the lower end of the screen 4 to move towards the needle-shaped portion 92 of the screen anti-detachment component 9. As a result, the needle-shaped portion 92 of the screen anti-detachment component 9 remains inserted into the lower end of the screen 4 or re-inserts even if it detaches, thereby maintaining the anti-detachment of the lower end of the screen 4 relative to the sliding guide 5. Furthermore, the vertical position of the inner end 1021 of the cover portion 102 of the cover member 10 in the depth direction D is higher than the vertical position of the inner end 921 of the needle portion 92 of the screen anti-detachment member 9 in the depth direction D. Therefore, it is possible to reliably realize the movement of the lower end of the screen 4 based on the cover portion 102 of the cover member 10 toward the needle portion 92 side of the screen anti-detachment member 9.

[0055] Furthermore, the cover member 10 is made of a material with hardness that does not cause wear on the screen 4, and which causes the lower end of the screen 4 to move toward the needle-shaped portion 92 of the screen anti-detachment member 9 when the end 1021 of the cover portion 102 in the depth direction D contacts the screen 4. Therefore, wear on the lower end of the screen 4, which unfolds in the horizontal direction H as the sliding bar 3 slides in the horizontal direction H and is wound toward the outer peripheral surface of the main body 211 of the roller 21 housed inside the storage frame 2, can be suppressed more effectively. In addition, the movement of the screen 4 toward the needle-shaped portion 92 of the screen anti-detachment member 9 based on the cover portion 102 of the cover member 10 can be realized more effectively.

[0056] Furthermore, regarding the screen anti-detachment component 9, the base 91 extends along the entire length of the connection direction of each guide unit 51 of the sliding guide 5 and is inserted between the track portion 511i and the support portion 511j of one side wall 511 of each guide unit 51. However, the needle-like portion 92 may not be installed on the portion of the base 91 located on the fixed end 514 side of the sliding guide 5. This can suppress damage to the lower end of the screen 4 caused by the needle-like portion 92 piercing into the lower end of the screen 4 that has just been pulled out from the outer peripheral surface of the main body 211 of the roller 21 housed inside the storage frame 2. On the other hand, regarding the cover component 10, the cover portion 102 can cover the bottom wall 512 of each guide unit 51 from above along the entire length of the connection direction of each guide unit 51 of the sliding guide 5. This can more effectively suppress the accumulation of foreign matter such as dust, sand, and dirt on the upper surface of the bottom wall 512 of each guide unit 51 of the sliding guide 5.

[0057] Furthermore, the cover portion 102 extends obliquely upward from the boundary portion with the supported portion 101 to the inner end 1021 in the depth direction D. Therefore, the unfolded screen 4 is subjected to external pressure such as wind pressure from the outside to the inside in the depth direction D. When the needle-shaped portion 92 of the screen anti-detachment member 9 flexes and detaches from the lower end of the screen 4, the movement of the lower end of the screen 4 toward the needle-shaped portion 92 of the screen anti-detachment member 9 can be further reliably realized.

[0058] Return to Figure 1 A tension member 20 is provided in the screen device SA. The tension member 20 has one end and another end. One end is fixed to the adjuster 8 connected to the free end 513 side of the sliding guide 5, and passes through the interior of the sliding bar 3 and is pulled out from the upper end of the sliding bar 3 toward the door frame 1 side, and pulled in from the upper end of the door frame 1 into the interior of the door frame 1. The other end is fixed to the inner surface of the door frame 1.

[0059] The upper end of the sliding bar 3 is formed by a hollow cap block 36 that can be easily installed and removed using screws 35. A pulley 37 is axially supported at the upper end of the cap block 36 on the side of the door stop frame 1. A tension member 20 extends from the adjuster 8 toward the upper end of the cap block 36 inside the sliding bar 3, engages with the outer periphery of the pulley 37, and is pulled out from the cap block 36 toward the door stop frame 1. The tension member 20 pulled out from the cap block 36 passes through the interior of the upper track 6.

[0060] Reference Figure 6 In (a) and (b), a second cap 17 is provided at the upper end of the door stop frame 1. Regarding the second cap 17, except for the central portion in the horizontal direction H, the first leg 171 and the second leg 172 extend downwards from the lower end. Furthermore, a through hole 173 is provided in the second cap 17, located between the first leg 171 and the second leg 172 and extending vertically. The first leg 171 is inserted into and embedded in the first insertion part 15, and the second leg 172 is inserted into and embedded in the second insertion part 16, thereby fixing the second cap 17 to the upper end of the door stop frame 1. When the second cap 17 is fixed to the upper end of the door stop frame 1, a tension member 20, which has been pre-pulled out from the cap block 36, is pulled downwards through the through hole 173. The other end of the tension member 20 is fixed to the inner surface portion of the door stop frame 1 in the horizontal direction H using a hook member 18 that can be inserted into the first insertion part 15. The hook member 18 extends vertically and has a cutout 181 at its upper end that extends from the inside to the outside in the horizontal direction H. The portion of the hook member 18 directly below the cutout 181 is hollow and opens inward in the horizontal direction H. A screw 182 is provided at the lower end of the hook member 18 for fixing the hook member 18 to the inner surface of the door stop frame 1 in the horizontal direction H. The tension member 20, which extends downward through the through hole 173 towards the second cap 17, has a spherical knot 201 formed at its other end. The other end of the tension member 20, excluding the spherical knot 201, is inserted into the cutout 181, and the spherical knot 201 abuts against the lower end face of the upper end of the hook member 18, thereby fixing the other end of the tension member 20 to the hook member 18. Thus, with the hook member 18, which has the other end of the tension member 20 fixed, inserted into the first insertion part 15 of the door stop frame 1, the first leg 171 is inserted into the first insertion part 15 and the second leg 172 is inserted into the second insertion part 16, thereby fixing the second cap 17 to the upper end of the door stop frame 1.

[0061] Furthermore, the vertical position of the hook member 18 is adjusted along the first insertion portion 15, and the hook member 18 is fixed to the door stop frame 1 using screws 182. This applies appropriate tension to the tension member 20 pulled into the door stop frame 1, fixing it to the inner surface portion of the door stop frame 1 in the horizontal direction H. Therefore, when the sliding bar 3 slides towards the door stop frame 1, even if accumulated tension is present... Figure 1 The spring force of the helical spring 217, as shown, acts on the sliding bar 3 via the screen 4, exerting a force towards the storage frame 2. The tension member 20 can also cooperate with the sliding guide 5 to allow the sliding bar 3 to slide parallel to both the door stop frame 1 and the storage frame 2. This parallel sliding of the sliding bar 3 relative to both the door stop frame 1 and the storage frame 2 is also achieved when the sliding bar 3 slides towards the storage frame 2. Furthermore, the simplified arrangement of the tension member 20 simplifies the manufacturing of the screen device SA. In addition, a through hole is formed in the hook member 18, extending horizontally in the direction H (as shown in the attached figure), and a nut that engages with the externally threaded portion of the screw 182 is installed in a part of this through hole. If the screw 182 is tightened to the nut, the end of the screw 182 located on the opposite side of the head abuts against the inner surface of the first insertion portion 15 in the horizontal direction H of the door stop frame 1, and the hook member 18 presses against both the second protrusion 14 and the end portion of a support piece 11 opposite to the second protrusion 14, thereby fixing the hook member 18 to the door stop frame 1.

[0062] Furthermore, the screen unit SA is formed to a fixed length, meaning it can be cut to a length in the vertical direction V. The dimensions of the door frame 1, storage frame 2, sliding strip 3, and screen 4 in the vertical direction V of the screen unit SA are specified by the manufacturer. These specifications take into account the dimensions of the openings in the building's window frames, door frames, etc., where the screen unit SA is installed, and are designed for mass production. Therefore, since it is a mass-produced product, it is sometimes necessary to cut to a fixed length to correspond to the size of the opening before shipment. Additionally, whether it is a mass-produced product or a product cut to a fixed length, further cutting to a fixed length is sometimes necessary on-site to accommodate the actual opening. The screen unit SA can adequately handle this fixed-length cutting. This is because the second cap 17 at the top of the door frame 1 can be removed, and the first cap 214 and cover 215 can be removed from the storage frame 2. Furthermore, the cap block 36 forming the upper end of the sliding strip 3 can also be easily removed.

[0063] During the fixed-length cutting of the screen device SA, Figure 6 The second cap 17, as shown in (a) and (b), is pulled upward from the door stop frame 1, and the hook member 18, while fixing one end of the tension member 20, moves upward along the first insertion portion 15 and is pulled upward from the upper end of the door stop frame 1. Additionally, Figure 1 The cover 215, secured by screw 216, is released, and the cover 215 is removed from the upper end of the storage frame 2. The first cap 214 is then pulled upwards towards the body 211 of the roller 21. Furthermore, the cap block 36, secured by screw 35, is released, and the cap block 36 is removed from the sliding bar 3. Figure 2The cover 312 shown is removed from the sliding bar 3, causing the sliding bar 3 to open outward in the horizontal direction H. Furthermore, the tension member 20, with one end of the hook member 18 fixed, is pulled outward from the open portion of the sliding bar 3 in the horizontal direction H. At this time, the tension member 20 passes through the cap block 36. Sometimes, the tension member 20 may detach from the pulley 37 because the cap block 36 is removed from the sliding bar 3. However, if it passes through the cap block 36 beforehand, during reassembly after the fixed-length cutting, only a portion of the tension member 20 needs to be re-wound around the pulley 37, simplifying the threading operation of the tension member 20. By forming it in this state, the upper end of the screen device SA, i.e., the entire upper end of the door frame, sliding bar 3, screen 4, storage frame 3, and main body 211 of roller 21, can be cut in one go without cutting the tension member 20. After cutting, the fixed-length cut screen device SA can be reassembled by performing the assembly operation in the reverse order described above. As described above, the arrangement of the tension components 20 is simplified, and therefore, the arrangement of the tension components 20 during reassembly is also relatively simple.

[0064] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments. For example, the cover member 10 provided by the screen device SA can be applied to all sliding guides 5 provided at the lower end in the height direction L. That is, the cover member 10 can be applied to the sliding guides at the lower end in the height direction L of the screen device, which also provides sliding guides at the upper end in the height direction L. In addition, the cover portion 102 of the cover member 10 does not necessarily have to extend obliquely upward in the depth direction D, as long as the vertical position of the inner end 1021 in the depth direction D is higher than the vertical position of the needle-shaped portion 92 of the screen anti-detachment member 9 in the depth direction D. For example, the cover portion 102 of the cover member 10 can extend parallel to the bottom wall 512 of each guide unit 51 of the sliding guide 5. Furthermore, the screen anti-detachment member 9 can be fitted to the inner side in the depth direction D of the other side wall 511 of each guide unit 51 of the sliding guide 5. In this case, the cover component 10 is fitted inside the depth direction D of one side wall 511 of each guide unit 51 of the sliding guide 5. Furthermore, the height direction L of the screen device is not limited to the vertical direction V, as long as it is orthogonal to the width direction W. For example, the screen device can also be provided at an opening that is inclined relative to the vertical plane.

[0065] Explanation of reference numerals in the attached figures

[0066] SA…screen device; 1…door stop frame; 2…storage frame; 21…roller; 217…coil spring; 3…sliding bar; 4…screen; 5…sliding guide; 51…guide unit; 511…side wall; 512…bottom wall; 511a…pin; 511b…opening; 511i…track part; 511j…support part; 513…free end; 514…fixed end; 9…screen anti-detachment component; 91…base; 92…needle-shaped part; 921…end; 10…cover component; 101…supported part; 102…cover part; 1021…end; 20…tension component; W…width direction; L…height direction; D…depth direction.

Claims

1. A screen device comprising: a hollow door stop frame and a storage frame, which are arranged opposite to each other; a hollow sliding strip disposed on the same plane as the door stop frame and the storage frame, and sliding between the door stop frame and the storage frame towards both the door stop frame side and the storage frame side; a screen, one end of which is fixed to the sliding strip, which is pulled out from inside the storage frame as the sliding strip slides towards the door stop frame side, and unfolds on the same plane as the door stop frame and the storage frame; and a sliding guide that guides the sliding of the sliding strip. Regarding the screen device, the sliding direction of the sliding bar is set as the width direction; the direction orthogonal to the width direction in the same plane where the door stop frame, storage frame, and sliding bar are configured is set as the height direction; and the direction orthogonal to both the width and height directions is set as the depth direction. The door stop frame, storage box, and sliding strip extend along the height direction. The sliding guide is formed by connecting multiple guide units. Each guide unit has a pair of sidewalls opposite each other in the depth direction and a bottom wall connecting the two sidewalls. Each sidewall has a pin protruding outward in the depth direction at one end in the width direction and an opening at the other end in the width direction. With respect to two adjacent guide units, the pins of one guide unit loosely engage with the openings of the other guide unit, thereby allowing one guide unit to pivot freely relative to the other guide unit. The sliding guide has buckling properties. Regarding the sliding guide, a track portion is provided on the inner side of each side wall of each guide unit in the depth direction. The track portion extends along the line connecting the centers of the pins of each guide unit in the connection direction of the guide units. A support portion protruding inward in the depth direction is provided on the end edge of each side wall that is further away from the bottom wall in the height direction than the track portion. The screen anti-detachment component has a flexible base that extends along the width direction and is inserted between the track portion and support portion of each guide unit of the sliding guide. Multiple needle-like portions protruding inwards towards the depth direction of the sliding guide are installed at intervals. This screen anti-detachment component is detachably assembled to the inner depth direction of the sliding guide. As the sliding bar slides towards the door frame side, the needle-like portions of the screen anti-detachment component pierce the lower end of the screen in the height direction, which is pulled out from inside the storage frame and unfolds in the width direction, preventing the lower end of the screen in the height direction from detaching from the sliding guide. As the sliding bar slides towards the storage frame side, the needle-like portions of the screen anti-detachment component detach from the lower end of the screen in the height direction, thus storing the screen inside the storage frame. Its features are, The screen is housed inside a storage frame. A spiral spring, which accumulates elasticity when the sliding bar slides towards the door frame, allows for free rotation, and the roller extends along the height direction. The other end of the screen is fixed to the height-direction portion of the outer periphery of the roller. The release of the elasticity accumulated by the spiral spring causes the screen to roll up towards the outer periphery. Regarding the sliding guide, one end is a free end housed inside the sliding bar, and the other end is fixed to the lower end of the storage frame in the height direction. As the sliding bar slides towards the door frame, the sliding guide is pulled out from the lower end of the sliding bar towards the storage frame. The portion of the sliding guide pulled out from the sliding bar maintains straightness in the width direction. Furthermore, as the force stored in the coil spring is released, causing the screen to roll towards the outer periphery of the roller, the sliding bar slides towards the storage frame. The sliding guide is housed inside the sliding bar from the lower end in the height direction and moves upward in the height direction inside the sliding bar. The screen anti-detachment component is assembled on the inner side of the depth direction of one side wall of each guide unit of the sliding guide. The cover component has a strip-shaped cover portion that protrudes inward toward the depth direction of the sliding guide in the supported portion, which is inserted between the track portion and the support portion of each guide unit of the sliding guide and extends along the width direction. This cover component is flexible. It is fitted to the inner side of the other side wall of each guide unit of the sliding guide in the depth direction. The height position of the inner end of the cover portion in the depth direction is higher than the height position of the inner end of the needle-shaped portion of the screen anti-detachment component in the depth direction. As the screen is pulled out and unfolded from inside the storage frame as the sliding bar slides toward the door frame side, the lower end of the screen in the height direction is prevented from detaching from the sliding guide between the two side walls of each guide unit of the sliding guide portion that is pulled out from the lower end of the sliding bar toward the storage frame side by the insertion of the needle-like part of the screen anti-detachment component, and is configured to contact the end of the cover portion of the cover component in the depth direction.

2. The screen device according to claim 1, characterized in that, The cover component is made of a material with a hardness that will not cause wear to the screen and, when the end of the cover component inside the depth direction contacts the screen, causes the lower end of the screen in the height direction to move toward the needle-shaped portion of the screen anti-detachment component.

3. The screen device according to claim 2, characterized in that, The cover portion of the cover component extends obliquely upward in the height direction from the boundary portion with the supported portion to the end portion inside the depth direction.

4. The screen device according to claim 1, characterized in that, The air device is provided with a tension member, which has one end and another end. One end is fixed to the free end side of the sliding guide and passes through the interior of the sliding strip and is pulled out from the upper end of the sliding strip in the height direction toward the door frame side, and then pulled in from the upper end of the door frame in the height direction into the interior of the door frame. The other end is fixed to the inner surface of the door frame.

Images