JP4996367B2 - Screen device - Google Patents

Description

  The present invention relates to a screen device that can be used as a curtain, a blind, a screen door, a partition, or the like.

  As for a versatile screen device, the present applicant has proposed an open / close operation that is easy, smooth and stable (Patent Document 1).

  The screen device proposed by the present applicant is formed by connecting a plurality of rigid units described in Japanese Patent No. 3323461, and can be bent in one direction, but not bent in the other direction. A rotatable roller pipe with a pair of slide guide frames that maintain linearity, which can be freely extended and stored from a slide bar on which the slide guide frames can slide, and which has a coil spring between the slide guide frames. The roller pipe is slidable in the sliding direction of the slide bar. One end of two screens is fixed to the roller pipe, so that the screen can be wound and pulled out around the roller pipe.

  In the above screen device, the roller pipe has a built-in coil spring, and when the slide bar is slid out to pull out the screen, the roller pipe slides in the sliding direction of the slide bar while rotating, and at this time, the coil spring has an elastic restoring force. As the accumulated elastic restoring force is released, the screen is wound around the roller pipe, the roller pipe slides toward the mounting frame, and the slide bar also slides toward the mounting frame.

In the above screen device, an appropriate tension is applied to the screen by the elastic restoring force accumulated in the coil spring, so that the operation feeling of the slide bar is good, and the screen is automatically moved around the roller pipe by releasing the elastic restoring force. Since it can be wound and stored, it is easy, smooth and stable.
JP-A-2005-351046

  In the screen device having excellent opening / closing operability as described above, several points to be improved were found by subsequent studies.

  Use will cause the screen to become dirty. The dirt can be removed to a certain extent by wiping and cleaning with water or a detergent solution. However, when dirt or tear that cannot be removed by wiping and cleaning occurs, the screen needs to be replaced. However, since the screen is pulled in a direction that is always wound by a coil spring built in the roller pipe, it is difficult to remove the screen in such a pulled state from the screen device.

  The reason for this is that, first, when removing the screen, it is necessary to pull out the screen and hold it in an expanded state. For this purpose, it is necessary to continue to apply a force against the elastic restoring force of the coil spring, It was difficult to keep the screen open.

  Second, even if the screen can be removed, after the screen is removed, even the elastic restoring force accumulated in advance in the coil spring is released, so the elasticity that is released after the replacement of the screen is released. It is necessary to accumulate the restoring force on the coil spring by torsional rotation. Accumulating the elastic restoring force is a laborious operation, and the elastic restoring force may be suddenly released suddenly during the work, which is extremely dangerous. There is also a problem with it.

  Thus, the screen device has a point to be improved in terms of maintainability.

  The present invention has been made in view of the circumstances as described above, and provides a screen device that is easy to replace the screen and has excellent maintainability that allows the screen to be replaced without removing the screen device itself. Is an issue.

  The present invention is characterized by the following in order to solve the above problems.

  In a first aspect of the invention, a rotatable roller pipe is disposed between a pair of slide guide frames that can be freely extended and stored from a slide bar that is slidable with respect to the mounting frame. It is slidable in the sliding direction. One end of two screens is fixed to the roller pipe, and the screen can be wound around and drawn out around the roller pipe. The roller pipe has a coil spring built in, and a slide bar. When the screen is pulled out by sliding the roller pipe, the roller pipe slides in the sliding direction of the slide bar while rotating. At this time, the elastic restoring force is accumulated in the coil spring, and by releasing the accumulated elastic restoring force, the screen is turned into the roller pipe. The roller pipe slides to the mounting frame side and the slide bar is also installed. A screen device that slides to the side, in a direction in which the pin hole is perpendicular to the length direction of the roller pipe from the fixed end of the coil spring fixed to the fixed shaft of the roller pipe to the roller pipe of the portion located outside the coil spring The roller pipe is made non-rotatable by a pin inserted into the pin hole.

  According to a second invention, in the first invention, the slide bar and the mounting frame have a groove in the screen fixing portion into which the fixing member disposed at the end of the screen is inserted. A locking piece that protrudes inward in the width direction of the groove is extended from both side edges on the insertion side, and either one of the locking pieces is the end of the groove in the length direction of the slide bar and the mounting frame. It is characterized by being cut out toward the edge side to form a notch, and the notch can be inserted into a tool.

  According to a third invention, in the first or second invention, the slide bar and the mounting frame have the same shape, and the slide bar and the mounting frame are arranged so as to have a symmetrical arrangement with respect to the plane view about the roller pipe. It is characterized by being.

  A fourth invention is the horizontal opening type screen device according to any one of the first to third inventions, comprising a bottom rail, and the guide block disposed at the lower end of the slide bar is the bottom rail. The slide bar slide is guided by the bottom rail, the end between the pair of slide guide frames is connected by a tension member that forms an 8-shaped loop, and the folded block that folds back the tension member slides The guide block is disposed at the lower end of the bar and is detachably disposed on the folding block.

  In a fifth aspect based on the fourth aspect, the screen device includes a vertical frame disposed to face the mounting frame, and the door contact surface of the vertical frame is formed from a single plane, and is disposed adjacent to the door contact surface. The magnet is arranged inside the vertical frame, and the magnet is also arranged at the tip of the slide bar in the sliding direction. The two magnets attract each other by magnetic force.

  According to the first aspect of the present invention, the pin hole extends in a direction perpendicular to the length direction of the roller pipe from the fixed end of the coil spring fixed to the fixed shaft of the roller pipe to the roller pipe of the portion located outside the coil spring. Since it is formed so as to penetrate, the roller pipe is made non-rotatable by inserting the pin into the pin hole, the screen can be stably held in the expanded state, and the screen can be easily removed. It is not necessary to remove the screen device itself from the window frame opening or the like, and the screen can be removed in the attached state. Further, the elastic restoring force accumulated in the coil spring after the screen is removed is not released, and the dangerous work of accumulating the elastic restoring force in the coil spring that had to be performed after the screen replacement is eliminated. Therefore, the screen device is excellent in maintainability.

  According to the second aspect of the present invention, in the screen fixing portion of the slide bar and the mounting frame, in the concave groove into which the fixing member disposed at the screen end is inserted, from both side edges on the fixing member insertion side of the concave groove. A locking piece protruding inward in the width direction of the groove is extended, and either one of the locking pieces is cut out toward the edge of the groove in a part of the length direction of the slide bar and the mounting frame. Since the cutout portion is formed, the fixing member can be pulled out from the concave groove by inserting a tool such as a flathead screwdriver into the cutout portion, and the screen can be easily removed.

  According to the third aspect of the invention, the slide bar and the mounting frame having the same shape are arranged in a plane view symmetrical relationship with the roller pipe as the center, so the screen sharing the left and right functions with exactly the same function and performance For example, even if the interior color and the exterior color are different, it can be handled with one product, the number of screen devices can be reduced, and manufacturing, inventory management, and the like are facilitated.

  According to the fourth aspect of the present invention, the laterally open type is provided with the bottom rail, the guide block disposed at the lower end of the slide bar moves along the bottom rail, and the slide of the slide bar is guided by the bottom rail. In the screen device, the guide block folds back a tension member that forms an 8-shaped loop connecting the ends between the pair of slide guide frames, and is detachably arranged on the fold block disposed at the lower end of the slide bar. Therefore, only the guide block with large wear can be easily removed and replaced, the maintainability is further improved, and the part cost can be reduced.

  According to the fifth invention, the door contact surface of the vertical frame arranged facing the mounting frame is formed from a single plane, and the magnet is arranged adjacent to the door contact surface and arranged inside the vertical frame, A magnet is also arranged at the tip of the slide bar in the sliding direction, and both magnets attract each other by magnetic force, so that the door contact surface of the vertical frame does not protrude into the window frame opening etc. Without being attracted, it can be attracted to the magnet at the tip of the slide bar to hold the screen in an expanded state. In addition, the bottom rail can be constructed without any gaps up to the door contact surface of the vertical frame, and the slide of the slide bar is further stabilized.

  FIG. 1 is a partially cutaway front view showing an embodiment of a screen device of the present invention.

  The screen device 1 shown in FIG. 1 is a laterally opening type screen device, and is provided with a slide bar 3 slidable in the horizontal direction with respect to the mounting frame 2. A slide guide frame 5 is formed by connecting a plurality of rigid units 4, and the slide guide frames 5 are provided as a pair vertically. The slide guide frame 5 can be bent in one direction, is not bent in multiple directions, and maintains linearity. Both ends of the slide guide frame 5 are free ends, and can be extended and stored from both the slide bar 3 and the mounting frame 2. That is, the slide guide frame 5 extends from the slide bar 3 and the mounting frame 2 as the slide bar 3 slides, and is housed inside the slide bar 3 and the mounting frame 2. In the extended state, the slide guide frame 5 constitutes an upper frame and a lower frame of the screen device 1, respectively.

  A rotatable roller pipe 6 is disposed between the pair of slide guide frames 5.

  As shown in FIG. 2, a fixed shaft 7 is disposed at the upper end of the roller pipe 6. The roller pipe 6 has a double structure of an inner cylinder 6a and an outer cylinder 6b at the upper end, the inner cylinder 6a is coaxially disposed inside the outer cylinder 6b, and the fixed shaft 7 is inserted into the inner cylinder 6a. The roller pipe 6 is rotatable in both the left and right directions around the fixed shaft 7. A fixed piece 8 is disposed at the upper end of the fixed shaft 7. The fixing piece 8 is in the groove 10 which is notched to the outside and is formed on the inner side of the lower end of the left and right side walls 9 of the rigid unit 4 forming the slide guide frame 5 shown in FIG. It is housed and supports the fixed shaft 7 in a non-rotatable manner, and the fixed piece 8 can slide along the groove 10 so that the roller pipe 6 can slide in the slide direction of the slide bar 2. As shown in FIG. 2, the rigid unit 4 is formed by connecting the left and right side wall portions 9 with a flat plate-like bridging portion 11 at the approximate center in the height direction.

  The roller pipe 6 includes a coil spring 12, and the upper end of the coil spring 12 is fixed to the fixed shaft 7. The coil spring 12 is previously twisted and rotated, and an elastic restoring force is accumulated to some extent. As shown in FIG. 1, one end of two mesh screens 13 is fixed to the roller pipe 6. The other end of each screen 13 is fixed to each of the slide bar 3 and the mounting frame 2, and the screen 13 is wound around the roller pipe 6. The screen 13 is always pulled around the roller pipe 6 by the elastic restoring force accumulated in advance in the coil spring 12. When the slide device 3 is slid in the horizontal direction against the elastic restoring force of the coil spring 12 when the screen device 1 is closed, the roller pipe 6 rotates and the screen 13 is pulled out from the roller pipe 6. At the same time, the slide guide frame 5 extends from the slide bar 3 and the mounting frame 2. Further, as the slide bar 3 slides, the roller pipe 6 slides in the extending direction of the slide guide frame 5. At this time, an elastic restoring force is further accumulated in the coil spring 12 built in the roller pipe 6. The screen 13 is unfolded in a window frame opening or the like in a tensioned state, and does not sway in the wind or bend by contact.

  When the screen device 1 is opened, the elastic restoring force accumulated in the coil spring 12 is released. Then, the roller pipe 6 rotates in the reverse direction and slides toward the mounting frame 2 while winding the screen 13 around. At this time, the slide bar 3 to which the screen 13 is fixed also slides toward the mounting frame 2, and the slide guide frame 5 is housed inside the slide bar 3 and the mounting frame 2.

  Moreover, in the screen apparatus 1 shown in FIG. 1, as shown in FIG. 2, the length of the roller pipe 6 extends upward from the fixed end of the coil spring 12 fixed to the fixed shaft 7 at the upper end of the roller pipe 6. A pin hole 14 penetrating in a lateral direction perpendicular to the direction is formed. The pin hole 14 passes through the outer cylinder 6 b, the inner cylinder 6 a and the fixed shaft 7 at the upper end portion of the roller pipe 6. When the pin 15 is inserted into the pin hole 14 from one side to the opposite side, the roller pipe 6 becomes non-rotatable. In this state, the roller pipe 6 does not rotate due to the elastic restoring force accumulated in the coil spring 12, and the screen 13 is not wound around the roller pipe 6. Therefore, the screen 13 can be stably held in an expanded state, and the screen 13 can be removed and is easy. When the screen 13 is soiled or torn, the screen 13 can be removed in the attached state without removing the screen device 1 from the window frame opening or the like. Further, since the roller pipe 6 is made non-rotatable by the pin 15, the elastic restoring force remains accumulated in the coil spring 12, and is not released, and it has to be performed after the screen 13 is replaced. This eliminates the dangerous work of accumulating elastic restoring force. Therefore, the screen device 1 is excellent in maintainability.

  In order to prevent the slide guide frame 5 constituting the upper frame from being exposed to the window frame opening or the like, as shown in FIG. 1, an upper collar 16 is disposed on the upper edge of the window frame opening or the like. In this case, the pin hole 14 may be hidden by the lower edge of the upper collar 16, and in this case, as shown in FIG. 3, the upper collar 16 generally having a substantially U-shaped cross section is used. If the roller pipe 6 is slightly rotated so that the pin hole 14 faces in the length direction, the pin 15 can be easily inserted.

  4 is a cross-sectional view showing a state of the screen device shown in FIG.

  In the screen device 1, the slide bar 3 and the mounting frame 2 have a concave groove 19 in the fixing portion 17 of the screen 13 into which a fixing member 18 such as a set tape or a set plate disposed at the end of the screen 13 is inserted. Have. The concave groove 19 extends in the length direction of the slide bar 3 and the mounting frame 2. In the groove 19, a locking piece 20 is extended from the both side edges on the insertion side of the fixing member 18 so as to protrude inward in the width direction of the groove 19. The fixing member 18 inserted into the concave groove 19 is locked by locking pieces 20 at the left and right side edge portions, and the screen 13 is fixed to the slide bar 3 and the mounting frame 2 respectively.

  Similarly, two concave grooves 21 extending in the length direction of the roller pipe 6 are formed in the outer cylinder 6 b of the roller pipe 6, and both concave grooves 21 are arranged at positions that are symmetric with respect to the fixed shaft 7. Yes. Further, in the both concave grooves 21, locking pieces 22 are formed along the outer periphery of the outer cylinder 6 b inward from both end edges on the opening side, disposed at the end of the screen member 13, and inserted into the concave grooves 21. The fixing member 18 is locked at both left and right edge portions, and the screen 13 is fixed to the roller pipe 6.

  Further, in the screen device 1, as shown in FIG. 5, in the slide bar 3 and the mounting frame 2, one locking piece 20 is formed in a substantially U-shape toward the edge of the concave groove 19 at the lower end. The notch part 23 is formed by notching. A tool such as a flat-blade screwdriver can be inserted into the notch 23. For this reason, the fixing member 18 shown in FIG. 4 can be pulled out from the concave groove 19 by a tool such as a flathead screwdriver inserted into the concave groove 19 from the notch 23, and the screen 13 can be easily removed.

  Further, the screen device 1 shown in FIG. 1 includes a vertical frame 24 arranged to face the mounting frame 2. Although the vertical frame 24 can be substituted by a sash in a window frame opening or the like, the vertical frame 24 is provided with a stopper mechanism for holding the screen device 1 in a closed state. The stopper mechanism includes a lever 25 that slides up and down and an opening member 26 provided on the slide bar 3. The opening member 26 includes an opening 27. Opposite to the opening 27, the lever 25 is provided with a hook 28 protruding in the lateral direction. The hook 28 is integrated with the lever 25, and the hook 28 moves up and down as the lever 25 slides.

  When the slide bar 3 is slid to the vertical frame 24 when the screen device 1 is closed, the hook 28 enters the opening 27 of the opening member 26, and the tip is caught by the opening member 26 at the periphery of the opening 27. Due to this catch, the movement of the slide bar 3 is stopped against the elastic restoring force of the coil spring 12, and the screen device 1 is stably held in the closed state. Therefore, the slide bar 3 does not tilt, and the roller pipe 6 that is made non-rotatable by the insertion of the pin 15 shown in FIGS. 2 and 3 into the pin hole 14 functions like a support, and the slide guide frame 5 hangs down. This prevents the screen 13 from being replaced more easily.

  Further, in the vertical frame 24, in place of the stopper mechanism, a magnet is disposed on the door contact surface in the longitudinal direction of the vertical frame 24, and as shown in FIG. The cap member 30 containing the magnet 29 is fitted into the two, and the two magnets are attracted to each other by magnetic force, so that the movement of the slide bar 3 is restrained against the elastic restoring force of the coil spring 12, and the screen device 1 is It can be stably held in the closed state. Therefore, also in this case, the slide bar 3 does not tilt, and the roller pipe 6 which is made non-rotatable by inserting the pin 15 shown in FIGS. 2 and 3 into the pin hole 14 functions like a column, and slides. The guide frame 5 is prevented from sagging and the replacement of the screen 13 is further facilitated.

  Further, in the screen device 1, as shown in FIG. 4, the slide bar 3 and the mounting frame 2 have the same shape and are arranged symmetrically with respect to the plane view around the roller pipe 6. 2 is arranged. For this reason, the screen device 1 is a screen device sharing the left and right sides with exactly the same function and performance. For example, even when the introspection color and the appearance color are different, a single product can cope with it. Therefore, the types of the screen device 1 can be reduced, and manufacturing, inventory management, and the like are facilitated. In this case, the mounting frame 2 can be a slide bar, and can be a double-opening screen device 1.

  In the screen device 1, the bottom rail 31 is provided at the lower edge of the window frame opening or the like in order to guide the slide of the slide bar 3 and to guide the expansion and storage of the slide guide frame 5 constituting the lower frame. It is arranged. The guide block 32 disposed at the lower end of the slide bar 3 moves along the bottom rail 31, and the slide of the slide bar 3 is guided by the bottom rail 31.

  As shown in FIG. 5, the bottom rail 31 has protrusions 33 that protrude from the left and right sides at the upper end. Corresponding to the outer shape of the bottom rail 31, the lower end portion of the guide block 32 is notched into a substantially U-shaped cross section, and a notch portion 34 is formed. As shown in FIG. 2, in the rigid unit 4 forming the slide guide frame 5, the groove 10 is formed inside the lower end portions of the left and right side wall portions 9, and the groove 10 is a protrusion 33 at the upper end portion of the bottom rail 31. Can be engaged. For this reason, when a force is applied to the slide guide frame 5 from the side by wind pressure, contact, etc., the projection 33 is engaged with the groove 10 to prevent the slide guide frame 5 from being lifted or detached from the bottom rail 31. A smooth opening / closing operation of the screen device 1 is realized.

  Since the lower end portion of the guide block 32 comes into contact with the upper end portion of the bottom rail 31, it gradually wears with the opening / closing operation of the screen device 1 and needs to be replaced. Therefore, in the screen device 1, the guide block 32 is made into a component, and the guide block 32 can be replaced separately.

  In the screen device 1, as shown in FIG. 1, in order to enable smooth and stable expansion and storage of the slide guide frame 5, a tension member such as a string is provided between the pair of upper and lower slide guide frames 5. 35. The tension member 35 forms an 8-shaped loop and is incorporated in each of the slide bar 3 and the mounting frame 2. Folding blocks 36 that fold back the tension member 35 are disposed at both upper and lower ends of the slide bar 3. The guide block 32 is detachably disposed on a folding block 36 disposed at the lower end of the slide bar 3.

  That is, as shown in FIG. 6, the guide block 32 folds the tension member 35, separates it from the folding block 36 for forming an 8-shaped loop, forms a component, attaches it from below the folding block 36, and It can be removed. The folding block 36 is formed with a hollow storage portion 37 of the guide block 32 that opens downward, and a substantially Kanna-shaped groove is formed at both inner ends of the storage portion 37. The guide block 32 is press-fitted and locked in this groove, and the guide block 32 is fixed to the folded block 36. Reference numeral 38 in FIG. 5 is an edge piece at both ends of the lower end of the folded block 36.

  In this way, the guide block 32 folds back the tension member 35 that forms an 8-shaped loop connecting the ends between the pair of slide guide frames 5, and the fold block 36 disposed at the lower end of the slide bar 3. Therefore, only the guide block 32 having a large amount of wear can be easily removed and replaced without removing the tension member 35, so that the maintainability can be further improved and the parts cost can be reduced. Reduction can be achieved. The guide block 32 has not only a notch 34 at the lower end, but also a side surface that is a curved surface 39 that curves outward from the top to the bottom, and the curved surface 39 is a copying surface that bends the slide guide frame 5 in one direction. Since the contact with the slide guide frame 5 is likely to occur, the curved surface 39 is likely to be worn. Therefore, it is also effective from this fact that only the guide block 32 can be replaced.

  As described above, in the screen device 1, the vertical frame 24 shown in FIG. 1 can be provided with magnets on the door contact surface in the length direction of the vertical frame 24, in this case, as shown in FIG. 4. As described above, the cap member 30 including the magnet 29 is fitted to the tip of the slide bar 3 in the sliding direction, and the magnets are attracted to each other by a magnetic force, so that the slide bar 3 is elastically restored by the coil spring 12. The screen device 1 can be stably held in the closed state by stopping the movement against the above.

  In this case, as further shown in FIG. 7, the door contact surface 40 of the vertical frame 24 can be formed from one plane, and the protrusion from a window frame opening part etc. can be suppressed. The magnet 41 is disposed adjacent to the door contact surface 40 and disposed inside the vertical frame 24. Two attachment pieces 42 having a substantially L-shaped cross section are erected inward from the back surface of the door contact surface 40 in the vertical frame 24, are arranged opposite to each other, and the magnet 41 is held between the attachment pieces 42. The door contact surface 40 of the vertical frame 24 does not protrude into the window frame opening or the like, so that the appearance is good and the magnets 29 and 41 are attracted to each other by a magnetic force without being protruded, so that the screen 13 is held in an expanded state. In addition, the bottom rail 31 can be installed without any gap up to the door contact surface 40 of the vertical frame 24, and the slide of the slide bar 3 is further stabilized.

It is the partially notched front view which showed one Embodiment of the screen apparatus of this invention. It is principal part sectional drawing which showed the upper end part periphery of the roller pipe of the screen apparatus shown in FIG. It is the principal part perspective view which showed the upper end part periphery of the roller pipe of the screen apparatus shown in FIG. It is sectional drawing which showed the state at the time of the screen accommodation of the screen apparatus shown in FIG. It is the principal part side view which showed the slide bar of the screen apparatus shown in FIG. 1, and the lower end part periphery of an attachment frame. FIG. 2 is an exploded cross-sectional view of a main part showing a relationship between a folding block and a guide block in the screen device shown in FIG. 1. It is principal part sectional drawing which showed the variation of the vertical frame in the screen apparatus shown in FIG. 1 with the periphery.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screen apparatus 2 Mounting frame 3 Slide bar 5 Slide guide frame 6 Roller pipe 7 Fixed shaft 12 Coil spring 13 Screen 14 Pin hole 15 Pin 17 Fixed part 18 Fixed member 19 Groove 20 Locking piece 24 Vertical frame 29 Magnet 31 Bottom rail 32 Guide block 35 Tension member 36 Folding block 40 Door contact surface 41 Magnet

Claims (5)

  A rotatable roller pipe is arranged between a pair of slide guide frames that can be extended and stored from a slide bar that can slide relative to the mounting frame, and the roller pipe can slide in the slide direction of the slide bar. Yes, one end of two screens is fixed to the roller pipe, and it is possible to wind and draw the screen around the roller pipe. The roller pipe has a built-in coil spring and slides the slide bar to move the screen. When pulling out, the roller pipe slides in the sliding direction of the slide bar while rotating. At this time, the elastic restoring force is accumulated in the coil spring, and the screen is wound around the roller pipe by releasing the accumulated elastic restoring force. The roller pipe slides toward the mounting frame, and the slide bar slides toward the mounting frame. A pin device with a pin hole penetrating in a direction perpendicular to the length direction of the roller pipe from the fixed end of the coil spring fixed to the fixed axis of the roller pipe to the roller pipe of the portion located outside the coil spring. A screen device, wherein the roller pipe is made non-rotatable by a pin inserted into the pin hole.   The slide bar and the mounting frame have a recessed groove into which the fixing member disposed at the end of the screen is inserted in the screen fixing portion, and the widthwise inner side of the recessed groove from both side edges on the fixing member insertion side of the recessed groove. A locking piece that protrudes into the groove extends, and one of the locking pieces is cut out toward the edge of the concave groove in a part of the length direction of the slide bar and the mounting frame to form a cutout portion. The screen device according to claim 1, wherein a tool can be inserted into the notch.   The slide bar and the mounting frame have the same shape, and the slide bar and the mounting frame are arranged so as to have a symmetrical arrangement with respect to the plane viewpoint about the roller pipe. Screen device.   A side-opening screen device that includes a bottom rail, a guide block disposed at the lower end of the slide bar moves along the bottom rail, the slide of the slide bar is guided by the bottom rail, and a pair of slides The ends between the guide frames are connected by a tension member that forms an 8-shaped loop, and a folding block that folds the tension member is disposed at the lower end of the slide bar. The guide block is detachably arranged on the folding block. The screen device according to claim 1, wherein the screen device is provided.   The screen device includes a vertical frame arranged opposite to the mounting frame, the door contact surface of the vertical frame is formed from a single plane, the magnet is disposed adjacent to the door contact surface, and is disposed inside the vertical frame, 5. The screen device according to claim 4, wherein a magnet is also disposed at a tip portion of the slide bar in the sliding direction, and the two magnets are attracted to each other by a magnetic force.

Images