JP2016223157A - Roll-up screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll-up screen device capable of smoothly rolling out a screen even if a roll-up shaft warps due to rolling out of the screen, which can be realized by a simple structure at low cost.SOLUTION: A peripheral wall of a roll-up box 3 comprises a first peripheral wall 3a, a second peripheral wall 3b and a fixed wall 3c. A lead-out port 4 of a screen 5 is formed between tip edges e1, e2 of the first peripheral wall and the second peripheral wall, respectively. A tip edge e3 of a stopper plate 10 that protrudes to the lead-out port and is fixed to the first peripheral wall is disposed on a vertical surface L that is perpendicular to the fixed wall and includes a shaft center l2 of the roll-up shaft 2 and passes through the lead-out port, or on the second peripheral wall side of the vertical surface. A rolling out direction of the screen 5 from the roll-up shaft always inclines toward the first peripheral wall side from the second peripheral wall side of the vertical surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a winding-type screen device configured such that a screen is led out from a winding box.

Conventionally, for example, a winding screen device disclosed in Patent Document 1 is known. The basic configuration of this type of winding screen device includes a winding shaft, a winding box that supports the winding shaft, one end fixed to the winding shaft, and the other end leading to the winding box outlet. And a screen fixed to the movable frame. The screen device pulls the movable frame to apply a tensile force to the screen, whereby the screen wound around the winding shaft is fed out from the outlet of the winding box, and the winding shaft The built-in spring is configured to be automatically wound on the winding shaft.
Furthermore, as shown in FIGS. 12 and 13, for example, such a winding screen device has a gap that expands and contracts between a wall member 20 and a door 22 attached thereto via a hinge 21. It is also used as a door safety device (screen device 40) closed by 44.

By the way, in the screen device 40, the winding shaft 41 is usually only supported rotatably at both ends of the winding box 42. Therefore, when the winding shaft 41 becomes long in the axial direction because the screen 44 is wide, for example, the door 22 is opened from the state in the door 22 closed position shown in FIG. When a tensile force F is applied to the screen 44 along with the opening, the winding shaft 41 may bend in the direction in which the tensile force F is applied as shown in FIG. Then, the outer periphery of the screen 44 wound around the winding shaft 41 comes into contact with both side edge portions 42 a and 42 b of the winding box 42 and is pressed between the winding shaft 41 and the screen 44. There is a risk of causing problems in the feeding of the. Such a problem may occur not only in a screen device used as a door safety device but also in a screen device used in a building opening. As a countermeasure for such a problem, it is conceivable to give the winding shaft strength against bending by increasing the diameter of the winding shaft. However, in that case, the manufacturing cost increases or the winding box is used. A new problem arises, such as an increase in size.
In addition, as a prior art document relevant to this invention, a thing like patent document 2 is mentioned, for example.

JP 2000-27569 A JP-A-9-279967

  Therefore, the present invention can smoothly feed out the screen even if the winding shaft is bent due to the feeding of the screen, and realizes it at a low cost with a simple structure. An object of the present invention is to provide a roll-up screen device that can be used.

  In order to achieve the above object, a winding screen device according to the present invention includes a flexible screen, a hollow winding box, and both ends of the winding box with respect to the winding box. A winding shaft that is supported so as to be rotatable about an axis and wound on one end side of the screen, and is attached to the other end of the screen that is led out from the outlet of the winding box. A screen device having a movable frame movably provided, wherein an outer periphery extending along a longitudinal direction of the winding box extends along a fixed wall provided for fixing to a building and a longitudinal direction of the fixed wall. The first and second peripheral walls are erected from both ends extending in the direction and form the outlet port between the front end edges, and are perpendicular to the fixed wall and pass through the axis of the winding shaft. The surface leads to the outlet A feeding point at which the screen wound around the winding shaft is fed from the winding shaft is located on the second peripheral wall side with respect to the vertical surface, and the first peripheral wall includes When the screen is extended from the leading edge of the first peripheral wall and is extended from the winding shaft, the outer periphery of the screen wound around the bent winding shaft comes into contact with the second peripheral wall. It is characterized in that a stopper plate for preventing this is provided.

  At this time, preferably, the feeding direction of the screen from the feeding point of the screen is always inclined toward the vertical surface side, and the leading edge of the stopper plate is on the vertical surface at the outlet. It is located closer to the second peripheral wall than the vertical plane. More preferably, the distal end portion including the distal end edge of the stopper plate is substantially perpendicular to the vertical plane.

In the winding screen device, a long hole extending in the longitudinal direction of the winding box is formed in the first peripheral wall of the winding box, and the stopper plate has a hook-shaped tip. A bent engagement piece and an elastically supported locking claw are arranged side by side in the longitudinal direction of the stopper plate, and the long hole is formed with a wide portion for inserting the engagement piece, and from the wide portion. And a narrow portion for engaging the engagement piece with the stopper plate in the longitudinal direction of the take-up box. When the stopper plate is slid in the longitudinal direction of the take-up box while being inserted into the wide portion, the engaging piece is engaged with the stopper plate at the narrow portion, and the locking claw is a long hole. Engaged with the opening edge of the wide part It can be configured to.
At this time, preferably, the first peripheral wall of the winding box is provided with two long holes along the longitudinal direction thereof, and the stopper plate has two engaging pieces connected to the long holes. The locking claws are formed at the same interval, and the locking claw is provided at an intermediate position between the engaging pieces.

  As described above, in the present invention, the winding box is bent on the first peripheral wall of the winding box and protruded from the leading edge of the first peripheral wall to the outlet, and the screen is fed out from the winding shaft. A stopper plate for preventing the shaft from coming into contact with the second peripheral wall is provided. Therefore, even if the winding shaft may be bent due to the feeding of the screen, the outer periphery of the screen wound around the winding shaft forms the first and second outlets of the winding box. Simultaneously abutting on the side edge portion of the peripheral wall to prevent pinching with the winding shaft 41, the screen can be smoothly fed out. Moreover, it can be realized at a low cost with a simple structure.

1 is a schematic cross-sectional view showing a winding screen device according to a first embodiment of the present invention, showing a state in which a door is closed. In the said screen apparatus, it is a schematic cross-sectional view which shows the state which the tensile force acted on the winding shaft via the screen, and has shown the state which opened the door a little. It is a top view which shows the stopper plate in the said screen apparatus. FIG. 4 is a side view of FIG. 3. FIG. 4 is a bottom view of FIG. 3. It is a top view which shows the 1st surrounding wall of a winding box. It is a schematic plan view which shows the state by which the engagement piece of the stopper plate was inserted in the long hole of the said winding box. It is a schematic plan view which shows the state by which the latching claw of the stopper plate was engaged with the opening edge of the long hole of the said winding box. It is a schematic perspective view which shows the state before mounting | wearing with the stopper plate with respect to the said winding box. It is a schematic perspective view which shows the state with which the stopper plate was mounted | worn with respect to the said winding box. It is a schematic longitudinal cross-sectional view which shows the winding type screen apparatus which concerns on the 2nd Embodiment of this invention. It is a schematic cross-sectional view showing a conventional winding screen device. In the screen apparatus of FIG. 12, it is a schematic cross-sectional view which shows the state which the winding axis | shaft bent by extending | stretching the screen.

Hereinafter, each embodiment of a winding screen device according to the present invention will be described in detail with reference to the drawings.
1 to 10 show a first embodiment of a winding screen device according to the present invention. The winding screen device 1 includes a wall material 20 to which a door 22 such as a building is to be attached, and a hinge. A door safety which is disposed between the door 22 and the door 22 and prevents the fingers or the like from being caught in a gap between the wall member 20 and the door 22 when the door 22 is opened and closed. It is used as a device.

  As shown in FIG. 1 or 2, the basic configuration of the winding screen device 1 in the present embodiment includes a winding shaft 2, a hollow winding box 3 that rotatably supports the winding shaft 2, and One end side is wound around the winding shaft 2, and the other end side is attached to the other end of the screen 5 with a flexible screen 5 led out through the lead-out port 4 of the winding box 3, The movable frame 6 is movable with respect to the winding box 3.

  And when attaching this winding type screen apparatus 1 to the door 22, while fixing the fixed wall 3c of the said winding box with the screw, a nail, etc. with respect to the vicinity of the hinge 21 side in the said wall material 20, the said The movable frame 6 is similarly fixed in the vicinity of the hinge 21 side of the door 22 with screws, nails or the like. By doing so, it becomes possible to cover the gap formed between the wall material 20 and the door 22 with the opening operation of the door 22 with the screen 5 and prevent the fingers from being caught in the gap. Yes.

  Although illustration is omitted, in the winding shaft 2, a winding in which an urging force in the opposite direction, that is, the winding direction of the screen 5 is accumulated by the rotation of the winding shaft 2 in the feeding direction of the screen 5. An automatic winding mechanism having a take-up spring is accommodated, and the screen 5 is automatically wound around the take-up shaft 2 when the door 22 is closed.

  As shown in FIG. 1 or FIG. Have. On the other hand, the fixed plate 7 to be locked to the movable frame 6 is bonded to the other end of the screen 5 by an appropriate fixing means such as an adhesive and is elastically formed inside the locking protrusion of the movable frame 6. It has a protrusion to be locked.

  Thus, in the present embodiment, the screen 5 spring-biased in the winding direction is wound around the winding shaft 2 in conjunction with the turning operation of the door 22 in the closing direction (FIG. 1). On the other hand, a tensile force F acts in the feeding direction on the screen 5 wound around the winding shaft 2 in accordance with the turning operation of the door 22 in the opening direction from the state of FIG. 2, the screen 5 is led out from the lead-out port 4 of the winding box 3 to the outside.

  By the way, the outer periphery extended along the longitudinal direction in the said hollow winding box 3 is used for fixation to a building wall, The said fixed wall 3c formed in the substantially flat plate shape (a cross section is substantially linear shape), The fixed wall 3c is formed of a first peripheral wall 3a and a second peripheral wall 3b which are provided substantially vertically from both side end portions extending along the longitudinal direction and form the outlet port 4 between the front end edges e1 and e2. ing. In the present embodiment, the first peripheral wall 3a is formed in a substantially flat plate shape (the cross section is substantially linear), and the second peripheral wall 3b is formed in a substantially L shape in which the cross section is bent toward the first peripheral wall 3a. Is formed. In addition, these 1st surrounding walls 3a, 2nd surrounding walls 3b, and the fixed wall 3 may be formed integrally, and may be formed separately.

  On the other hand, both ends of the winding shaft 2 in the longitudinal direction are rotatable around the axis l2 with respect to the end walls 3d and 3d that close the end of the winding box 3 in the longitudinal direction. However, it is fixedly supported so that it cannot move along the surface of the end wall. A vertical plane L that is perpendicular to the fixed wall 3c and passes through the axis l2 passes between the leading edges e1 and e2 of the first and second peripheral walls 3a and 3b, that is, through the outlet port 4. .

  The feeding point 2a where the screen 5 wound around the winding shaft 2 is fed out from the winding shaft 2 (that is, the point where the screen 5 is separated from the portion wound around the winding shaft 2) is as follows. The screen 5 is positioned on the second peripheral wall 3b side with respect to the vertical plane L, and the feeding direction of the screen 5 from the feeding point 2a is always the vertical regardless of the feeding amount of the screen 5 from the winding shaft 2. It inclines toward the surface L side (namely, the 1st surrounding wall 3a side). That is, when the tensile force F acts on the screen 5 wound around the winding shaft 2 in the feeding direction and the bending force acts on the winding shaft 2, the bending force is applied to the vertical surface L. Rather than toward the first peripheral wall 3a.

  Therefore, in the winding screen device 1 according to the present embodiment, the first peripheral wall 3a of the winding box 3 is projected from the leading edge e1 of the first peripheral wall 3a toward the outlet port 4. When the screen 5 is unwound from the take-up shaft 2, the outer periphery of the screen 5 wound on the take-up shaft 2 bent by the bending force is brought into contact with and supported, whereby the screen 5 In order to prevent the outer periphery from coming into contact with the leading edge e2 of the second peripheral wall 3b (that is, the outer periphery of the screen 5 is simultaneously applied to both the leading edges e1, e2 of the first and second peripheral walls 3a, 3b). A stopper plate 10 (for preventing contact) is fixed.

  Therefore, even if the bending force acts on the winding shaft 2 as the screen 5 is fed and the winding shaft 2 is bent by the bending force, the portion of the screen 5 wound around the winding shaft 2. Of the first peripheral wall 3a and the distal end edge e2 of the second peripheral wall 3b are simultaneously brought into contact with the winding shaft 2 at the outlet 4 and are pressed between the winding shafts 2 and the screen 5 is not properly fed. Can be prevented from occurring.

  More specifically, the stopper plate 10 is made of a material in which the screen 5 is slippery (having an extremely small friction coefficient), and is a flat plate-like mounting portion 10a erected substantially at a right angle from the fixed wall 3c. And a bent plate-like stopper portion 10b that is curved from the tip of the mounting portion 10a to the vertical plane L side. The stopper plate 10 is located at a substantially central position in the longitudinal direction of the winding box 3 where the bending of the winding shaft 2 due to the bending force is greatest, with respect to the first peripheral wall 3a that is substantially parallel to the vertical surface L. Attached.

  At this time, the mounting portion 10a is fixed to the outer peripheral surface of the first peripheral wall 3a by locking, while the stopper portion 10b protrudes to the outlet 4 through the distal end portion of the first peripheral wall 3a. The leading edge e3 is located on the vertical surface L at the outlet 4, and the inner side of the winding box 3 (that is, the fixed wall) than the leading edge e2 of the second peripheral wall 3b. 3c side). Further, the tip portion including the tip edge e3 in the stopper portion 10b is substantially perpendicular to the vertical plane L. The tip edge e3 of the stopper plate 10 may be located on the second peripheral wall 3b side with respect to the vertical surface L.

  By disposing the stopper plate 10 in this way, the bending force acts on the winding shaft 2 as the screen 5 is extended as described above, and the winding shaft 2 is bent by the bending force. Even so, the outer periphery of the screen 5 wound around the bent winding shaft 2 abuts against the smooth inner surface of the stopper plate 10 and is supported so as to be able to rotate smoothly, thereby leading the tip of the second peripheral wall 3b. It is possible to prevent contact with the edge e2 (that is, it is possible to prevent the outer periphery of the screen 5 from simultaneously contacting the front end edges e1 and e2 of the first and second peripheral walls 3a and 3b. ). As a result, it is possible to prevent a problem in the feeding of the screen 5 and realize a smooth feeding.

  Next, the attachment structure of the stopper plate 10 to the winding box 3 will be specifically described. As shown in FIG. 3, a pair of engagement pieces 11, 11 arranged at a predetermined interval in the longitudinal direction of the stopper plate 10 on the inner surface side of the mounting portion 10 a and a pair of engagement pieces 11, 11. The engaging pieces 11, 11 and the engaging claws 12 are juxtaposed in the longitudinal direction of the stopper plate 10.

  As shown in FIG. 5, the engaging piece 11 is bent in a direction perpendicular to the inner surface of the mounting portion 10a, and a guide portion 11a that is parallel to the inner surface from the tip of the guide portion 11a. It has a bowl-shaped cross-sectional shape having an engaging portion 11b, and extends along the longitudinal direction of the stopper plate 10 (see FIG. 3). As shown in FIGS. 3 and 5, the engaging portion 11b is bent in the opposite direction to the stopper portion 10b so that the width of the engaging portion 11b is approximately twice that of the guide portion 11a. .

  And the said latching claw 12 engages with the opening edge of the long hole 13 in the winding box 3 mentioned later using the elasticity of a leaf | plate spring, As shown in FIG. At an intermediate position between the pair of engagement pieces 11, 11, the plate surface of the mounting portion 10 a is cut into a substantially U shape so that the upper end side (the upper side in FIG. 3) of the stopper plate 10 is the bottom. The plate-like locking claws 12 are provided in the portions partitioned by the cuts.

  The locking claw 12 is positioned on the upper end side of the stopper plate 10 and protrudes toward the inner surface of the stopper plate 10, and is formed integrally with the flange portion 12a. The flat plate spring portion 12b is positioned on the lower end side (lower side in FIG. 3) of the stopper plate 10 with respect to 12a, and is elastically supported by the stopper plate 10 by the plate spring portion 12b. Moreover, as shown in FIG. 4 or FIG. 5, the collar part 12a protrudes from the plate | board surface of the attachment part 10a to the height comparable as the guide part 11a of the engagement piece 11. As shown in FIG.

  On the other hand, the first peripheral wall 3a of the winding box 3 has long holes 13 and 13 extending in the longitudinal direction (vertical direction) of the winding box 3 in the longitudinal direction, as shown in FIG. Two are arranged side by side. The long holes 13 and 13 are engaged with the two engaging pieces 11 and 11 so as to be slidable in the longitudinal direction of the winding box 3, and the engaging portion 11 b of the engaging piece 11 can be inserted therein. A wide portion 13a and a narrow portion 13b which is narrower than the wide portion 13a and into which the guide portion 11a of the engaging piece 11 can be inserted, and are connected to each other in the longitudinal direction of the winding box 3. ing.

  The wide portion 13a and the narrow portion 13b are substantially identical to each other and have a longitudinal dimension (vertical length) slightly longer than the length of the locking piece 11. Further, the interval between the two long holes 13 and 13 is such that the engaging pieces 11 and 11 arranged vertically on the stopper plate 10 side can be inserted into the wide portions 13a and 13a arranged vertically. It is the same as the interval between the pieces 11 and 11. In the present embodiment, in the vertical direction of the winding box 3, a narrow portion 13b is disposed on the upper side, and a wide portion 13a is disposed on the lower side of the narrow portion 13b.

  When the stopper plate 10 is attached to the winding box 3, the outer surface of the first peripheral wall 3a in the winding box 3 and the inner surface of the stopper plate 10 are opposed to each other, as shown in FIGS. The upper and lower engagement pieces 11 and 11 of the stopper plate 10 are inserted into the wide portions 13a in the long holes 13 and 13, respectively. From this state, when the stopper plate 10 is slid upward (in the direction of the narrow portion 13a of the long hole 13) along the longitudinal direction of the winding box 3, the guide portion 11a of the engagement piece 11 is changed to the narrow portion 13b. Inserted while being guided. As a result, since the engaging portion 11b has a larger width dimension than the narrow portion 13b, the engaging pieces 11 and 11 are engaged with the long holes 13 and 13 while being prevented from coming off.

  On the other hand, when the engaging claw 12 is inserted into the wide portion 13a of the long hole 13, the locking claw 12 has an outer surface between the long holes 13 and 13 in the first peripheral wall 3a, and the flange portion 12a. Therefore, the locking claw 12 is elastically deformed toward the outer surface side of the stopper plate 10 by the leaf spring portion 12b. When the guide portions 11a of the engagement pieces 11 and 11 are inserted by sliding into the narrow portions 13b of the long holes 13 and 13, respectively, the flange portions 12a are formed at the opening edges of the wide portions 13a of the long holes 13. Thus, the leaf spring portion 12b of the locking claw 12 is elastically restored. As a result, as shown in FIGS. 8 and 10, the hook portion 12 a of the locking claw 12 is engaged with the opening edge on the opposite side to the narrow portion 13 b in the wide portion 13 a of the long hole 13, and the stopper The plate 10 and the winding box 3 are locked.

  As described above, in order to prevent a problem in the feeding of the screen 5 due to the bending of the winding shaft 2, the curved plate-like stopper plate 10 is simply attached to the outer surface of the winding box 3. It is only necessary to mount it by a slide operation. Therefore, such a problem can be prevented at a low cost with a simple structure.

Next, a second embodiment according to the present invention will be described with reference to FIG. However, here, in order to avoid duplication of explanation, the same constituent parts as those in the first embodiment and the operational effects based thereon are denoted by the same reference numerals, and detailed description thereof is omitted.
The roll-up screen device 30 according to the present embodiment is installed for the purpose of insect protection, light shielding, blindfolding, and the like. In general, a shoji such as a window installed on the sash 31 in a building opening frame. It is attached to the opening located on the indoor side of 32.

  In the present embodiment, the take-up box 3 is attached along the upper frame of the building opening, and the screen 5 is taken up by the operation of the operation rod 33 to which the end of the screen 5 is attached in the vertical direction. The screen 5 is configured to be in a closed state when pulled out (lowered), or to be opened when the screen 5 is wound (raised) on the winding shaft 2. An engagement member 34 for engaging the operation rod 33 is fixed to the lower frame. When the screen 5 is stretched, the operation rod 33 is engaged with the engagement member 34 so that the screen 5 is held in a stretched state. Also in this embodiment, the automatic winding mechanism (not shown) is accommodated in the winding shaft 2.

  Also in this embodiment, the feeding point 2a where the screen 5 wound around the winding shaft 2 is fed from the winding shaft 2 is located on the second peripheral wall 3b side with respect to the vertical surface L, The feeding direction of the screen 5 from the feeding point 2a is always inclined toward the vertical plane L side regardless of the feeding amount of the screen 5 from the winding shaft 2. That is, along with the pulling operation of the operation rod 33 (that is, the closing operation of the screen 5), the tensile force F acts on the screen 5 wound around the winding shaft 2 in the feeding direction, so that the winding is performed. When a bending force is applied to the shaft 2, the bending force is directed to the first peripheral wall 3 a side with respect to the vertical surface L. Therefore, with the pulling operation of the operation rod 33 (that is, the closing operation of the screen 5), the central portion of the winding shaft 2 tends to bend as shown in the figure.

  Therefore, also in the present embodiment, the stopper plate 10 is provided on the first peripheral wall 3a of the winding box 3 as in the first embodiment. And the stopper part 10b of the said stopper plate 10 is protruded in the said outlet 4 through the front-end | tip part of the said 1st surrounding wall 3a, and the front-end edge e3 is located on the said vertical surface L in this outlet 4 . Further, the tip portion including the tip edge e3 in the stopper portion 10b is substantially perpendicular to the vertical plane L. However, here, the leading edge e3 of the first peripheral wall 3a is located slightly outside the winding box 3 relative to the leading edge e2 of the second peripheral wall 3b. The front end edge e3 of the stopper plate 10 may be located on the second peripheral wall 3b side with respect to the vertical surface L, and the front end edge e3 is more inward of the winding box 3 than the front end edge e2. May be located.

  The winding screen device according to the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the claims. Needless to say. For example, in the second embodiment, the vertical take-up screen device 30 whose screen can be opened and closed up and down is illustrated. However, as in the first embodiment, the screen can be horizontally opened and closed horizontally. There may be.

DESCRIPTION OF SYMBOLS 1,30 Winding type screen apparatus 2 Winding shaft 3 Winding box 3a 1st surrounding wall 3b 2nd surrounding wall 3c Fixed wall 4 Outlet port 5 Screen 10 Stopper plate 10a Mounting part 10b Stopper part 11 Engagement piece 12 Locking claw 13 Long hole 13a Wide part 13b Narrow part L Vertical surface l2 Axle

Claims (5)

A flexible screen, a hollow winding box, and in the winding box, both ends of the winding box are supported so as to be rotatable about an axis, and one end side of the screen is wound. A screen device having a winding shaft and a movable frame attached to the other end of the screen led out from the outlet of the winding box and movably provided with respect to the winding box,
The outer periphery extending along the longitudinal direction of the winding box is erected from a fixed wall provided for fixing to the building and both end portions extending along the longitudinal direction of the fixed wall, A vertical plane formed by the first and second peripheral walls forming the outlet and perpendicular to the fixed wall and passing through the axis of the winding shaft passes through the outlet.
A payout point at which the screen wound around the take-up shaft is drawn from the take-up shaft is located on the second peripheral wall side with respect to the vertical surface, and the first peripheral wall includes the first peripheral wall. Protruding from the leading edge to the outlet and preventing the outer periphery of the screen wound around the bent winding shaft from coming into contact with the second peripheral wall when the screen is fed out from the winding shaft. Stopper plate is provided,
A roll-up screen device characterized by that. The feeding direction of the screen from the feeding point of the screen is always inclined toward the vertical surface side,
The leading edge of the stopper plate is located on the vertical surface or on the second peripheral wall side with respect to the vertical surface at the outlet.
The winding screen device according to claim 1. The tip including the tip edge of the stopper plate is substantially perpendicular to the vertical plane,
The winding screen device according to claim 2. A long hole extending in the longitudinal direction of the take-up box is formed in the first peripheral wall of the take-up box, and the stopper plate is elastically supported by an engagement piece having a hook-shaped bent end. The locking claw is juxtaposed in the longitudinal direction of the stopper plate,
The elongated hole is formed by winding a wide portion for inserting the engagement piece and a narrow portion for forming the engagement piece to engage with the stopper plate. The narrow portion is formed narrower than the wide portion. It is formed by connecting in the longitudinal direction of the box,
With the engagement piece inserted into the wide part of the long hole, the stopper plate is slid in the longitudinal direction of the winding box, so that the engagement piece is engaged with the stopper plate at the narrow part, and The locking claw is configured to be engaged with the opening edge of the wide part of the long hole,
The winding screen device according to any one of claims 1 to 3. Two long holes are provided side by side along the longitudinal direction of the first peripheral wall of the winding box, and two engaging pieces are formed at the same interval as the long holes on the stopper plate. In addition, the locking claw is provided at an intermediate position of these engaging pieces,
The winding screen device according to claim 4.

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