JP7621133B2 - Roller screen door - Google Patents

Description

This disclosure relates to roll screen doors.

In a conventional screen device in which a movable frame guided by a guide section of the vertical frame of the screen frame is applied with an opening biasing force and the screen is opened and closed by pulling the movable frame horizontally, a notch is provided in the guide section to engage the movable frame (see, for example, Patent Document 1).

To enable the movable frame to be locked in position when the screen is stretched over the screen frame, the upper and lower horizontal frames are provided with cutouts for engaging the movable frame at positions corresponding to the guide sections where the movable frame is located when the screen is stretched.

JP 2008-14006 A

The technology disclosed in Patent Document 1 provides locking notches on the visible surfaces of the guide section and connecting member, which reduces the aesthetic appeal of the roll screen. Furthermore, there is a concern that the design of the roll screen may be reduced if the movable frame rolls over significantly when it is locked into the notch. A biasing force is applied to the movable frame to roll up the screen, and there is a risk that the fixing force will be insufficient if the movable frame is only locked into one notch. In addition to the above, providing a notch in the guide section requires processing, which may increase costs.

This disclosure was made in light of the above, and aims to provide a roll-up screen door that can reliably fix the movable frame and has a desirable design.

The present disclosure relates to a roll screen comprising a storage frame for winding up and storing a mesh body, a frame member attached to the tip of the mesh body that is pulled out from the storage frame, and a guide frame for slidably supporting both ends of the frame member, and having a first locking portion provided on the exterior side and locking with a part of the frame member, and a rotation prevention portion provided on the interior side for preventing the frame member from rotating.

FIG. 2 is a front view of the roll screen. 2 is a cross-sectional view of the storage frame and its vicinity taken along line AA in FIG. 1. 2 is a cross-sectional view of the door stop frame and its vicinity taken along line AA in FIG. 1. 13 is a perspective view showing the state in which the end cap and the connecting member are engaged with each other. FIG. FIG. 13 is a plan view of the state in which the connecting member is attached to the guide frame. FIG. FIG. 2 is a bottom view of the end cap.

<Overall structure of roll screen>
Hereinafter, an embodiment of the roll screen door of the present disclosure will be described with reference to the drawings. The roll screen door 1 is constructed by framing a storage frame 2 and a door stop frame 3 constituting a pair of vertical frames arranged on the left and right of a rectangular opening 100, and guide frames 4, 5 constituting a pair of horizontal frames on the top and bottom, in a rectangular shape so as to surround the opening 100 via connecting members 31, 32. A frame member 6 arranged parallel to the storage frame 2 is housed between the pair of guide frames 4, 5. A pull part 63 that protrudes toward the inside of the room is provided on the visible surface of the frame member 6 on the indoor side along the extension direction of the frame member 6.

In this specification, X1 in the drawings indicates the outdoor side and outdoor direction of the roll screen 1, and X2 indicates the indoor side and indoor direction of the roll screen 1. Y1 indicates the direction toward the storage frame 2 in the width direction of the roll screen 1. Y2 indicates the direction toward the door stop frame 3 in the width direction of the roll screen 1. Z1 indicates the upward direction of the roll screen 1, and Z2 indicates the downward direction of the roll screen 1. The prospective direction is the X1-X2 direction along the indoor/outdoor direction of the roll screen 1, and the prospective surface refers to the surface arranged along the indoor/outdoor direction. The visible direction is the Y1-Y2 direction perpendicular to the indoor/outdoor direction of the roll screen 1, and the prospective surface refers to the surface arranged perpendicular to the indoor/outdoor direction and facing the indoor and outdoor sides, respectively. In the roll screen 1, the indoor side refers to the side in the X2 direction relative to the sliding axis of the roll screen 1 in a plan view, and the outdoor side refers to the side in the X1 direction relative to the sliding axis of the roll screen 1 in a plan view.

As shown in Figures 2 and 3, the roll screen 1 is attached to a window 200 provided in a building frame. A shoji screen 202 is placed in the rectangular frame 201 of the window 200 so that it can be opened and closed. A frame member 203 is provided on the indoor side of the window 200 so as to surround the roll screen 1. The roll screen 1 is fixed to one of the visible surfaces 201a of the frame member 203 via an attachment 204. In the following explanation, the roll screen 1 is described as a horizontally sliding roll screen that slides in the width direction of the window 200, but is not limited to this. The roll screen 1 may also be a vertically sliding roll screen that slides in the up and down direction of the window 200.

The window 200 shown in Figures 2 and 3 is a horizontal sliding window that is configured so that the shoji screen 202 opens by sliding out toward the outside of the room around a horizontal axis (not shown) at the top. However, the window 200 to which the roll screen 1 is attached may be a window of other structure, such as a vertical sliding window or a sliding window.

The storage frame 2 of the roll screen 1 is disposed at one end of the guide frames 4 and 5, as shown in FIG. 2. The storage frame 2 stores the mesh body 7 wound in a roll so that it can be pulled out.

As shown in FIG. 2, the storage frame 2 is a vertically long box-shaped frame member capable of storing the mesh body 7. The storage frame 2 has a storage frame body 21 attached to one end of the guide frames 4 and 5, and a cover member attached to the storage frame body 21 so as to be able to be opened and closed.

The guide frames 4 and 5 extend horizontally in parallel from both the upper and lower ends of the storage frame 2. The guide frames 4 and 5 are provided with rails that slidably support both the upper and lower ends of the frame member 6. The rails are formed integrally with the guide frames 4 and 5. When the frame member 6 slides away from the storage frame 2, the mesh body 7 is pulled out from the drawer opening of the storage frame 2 and extended. When the frame member 6 slides toward the storage frame 2, the mesh body 7 is wound up on the winding shaft 71 and stored in the storage frame 2. The frame member 6 shown in FIG. 2 shows the open state of the roll screen 1, in which the mesh body 7 is completely wound up on the winding shaft 71 and is closest to the drawer opening of the storage frame 2. The frame member 6 shown in FIG. 3 shows the closed state of the roll screen 1, in which the mesh body 7 is pulled out to the outside of the storage frame 2 and locked closest to the door stop frame 3. The locking mechanism will be explained in more detail later.

The mesh body 7 is made of a net material, for example, made of resin threads woven into a net shape. The mesh body 7 is formed into a long strip in the left-right direction, and is formed into a roll by being wound around a winding shaft 71. The winding shaft 71 is biased in the direction of winding up the mesh body 7 by a biasing member (not shown), such as a spiral spring. The tip of the mesh body 7 is pulled out to the outside of the storage frame 2 from a pull-out opening arranged facing the guide frames 4 and 5, and is attached to the frame member 6.

<Roller screen locking mechanism>
The roll screen door 1 has a locking mechanism that detachably locks the frame member 6, to which the tip of the mesh body 7 is attached, at a position adjacent to the door stop frame 3. The locking mechanism is realized by detachably locking a first locking portion provided on the connecting members 31, 32 that connect the door stop frame 3 and the guide frames 4, 5 with a second locking portion provided on the end caps 61, 62 provided on both the upper and lower ends of the frame member 6, and by preventing the locked state from being released by an anti-rotation member.

The above connecting members and end caps are essential components that make up the roll screen door 1. By providing a locking mechanism to the essential components of the roll screen door 1, there is no need to provide a new dedicated item, and the manufacturing costs of the roll screen door 1 can be reduced. In addition to the above, since no processing such as providing a notch in the rail itself formed on the guide frames 4 and 5 is required, the manufacturing costs of the guide frames can be reduced and the locking mechanism can be formed without imposing restrictions on the position or installation direction of the guide frames. Furthermore, since the locking mechanism is formed in a position that is difficult to see from the outside of the connecting members and end caps, the design of the roll screen door 1 can be improved.

(Connecting member)
The connecting members 31, 32 are members that connect the guide frames 4, 5 and the door stop frame 3. The connecting members 31, 32 are made of, for example, resin. Below, the connecting member 32 that connects the lower end of the door stop frame 3 and the guide frame 5 will be described, but the connecting member 31 that connects the upper end of the door stop frame 3 and the guide frame 4 also has a similar configuration.

As shown in Figures 4 and 5, the connecting member 32 has a connecting portion 323 to which the door stop frame 3 is connected, and a connecting portion 324 to which the guide frame 5 is connected. The connecting portion 323 is inserted into the interior of the door stop frame 3, which is configured as a hollow cylinder, and is fixed therein, thereby connecting to the door stop frame 3. The connecting portion 324 is inserted into the hollow portion formed below the rail 52 of the guide frame 5 and into the space formed by the rail guide 51 and the rail 52, thereby connecting to the guide frame 5.

As shown in Figs. 5 and 6, the connecting portion 324 has a first locking portion 321 and a rotation prevention portion 322. The first locking portion 321 is engaged with a second locking portion 621a described later, thereby locking the frame member 6 at a position close to the door stop frame 3 against the biasing force applied to the frame member 6. In the above-mentioned locked state, the rotation prevention portion 322 abuts against an extension portion 622 described later, thereby preventing the frame member 6 from rotating horizontally due to the biasing force and releasing the above-mentioned locked state. The first locking portion 321 and the rotation prevention portion 322 are inserted and arranged in the space formed between the rail 52 and the rail guide 51 provided on the outside thereof. The first locking portion 321 is provided on the outside of the room, and the rotation prevention portion 322 is provided on the inside of the room.

The first locking portion 321 and the rotation prevention portion 322 are convex portions formed on the inner surface of the connecting portion 324. FIG. 6 is a plan view showing the state in which the connecting member 32 and the guide frame 5 are connected. As shown in FIG. 6, the first locking portion 321 and the rotation prevention portion 322 are formed so as to protrude toward the rail 52 from each other when the connecting member 32 is connected to the guide frame 5. The first locking portion 321 is configured so that the width of the Y2-direction end is wide and the width of the Y1-direction is narrow. The Y2-direction end of the first locking portion 321 is formed so as to have a step between it and the connecting portion 324, and the Y1-direction end of the first locking portion 321 is formed so as not to have a step between it and the connecting portion 324. Therefore, as shown by the white arrow in FIG. 4, when the end cap 62 is brought close to the connecting member 32 from the Y1 direction and engaged with the second locking portion 621a provided on the end cap 62, it is configured so as to be easily engaged and difficult to come off. The rotation prevention part 322 has a similar configuration.

(end cap)
End caps 61, 62 are attached to both the upper and lower ends of the frame member 6. The end caps 61, 62 are made of, for example, resin. In the following explanation, the end cap 62 provided at the lower end of the frame member 6 and the guide frame 5, which is a horizontal frame disposed at the lower part, will be explained, but the end cap 61 provided at the upper end of the frame member 6 and the guide frame 4 also have the same configuration.

As shown in Figures 4 and 7, the end cap 62 has an engagement portion 624 on one surface that abuts against the guide frame 5. The engagement portion 624 is formed by bending two pairs of protruding tip portions so that they approach each other. The engagement portion 624 engages with the rail 52 formed on the guide frame 5. The rail 52 is made up of two pairs of extension pieces that extend upward, and the tip portions of the two pairs of extension pieces are bent so that they move away from each other. By engaging the engagement portion 624 with the rail 52, the frame member 6 is slidably supported relative to the guide frames 4 and 5.

The end cap 62 is provided with a second locking portion 621a that is locked with the first locking portion. FIG. 7 is a view of the end cap 62 viewed from the bottom side. As shown in FIG. 7, the second locking portion 621a is provided at one end of the engagement portion 624. The one end is the outside end. That is, the second locking portion 621a is disposed on the outside of the roll screen 1. The second locking portion 621a is a pair of extension pieces formed by extending the end opposite to the direction in which the end of the engagement portion 624 is bent in the horizontal direction. The pair of second locking portions 621a are formed so that one end toward both ends in the viewing direction is inclined so that the width is narrow, and the other end toward the center of the base material is wide and has a step between the engagement portion 624. Therefore, the pair of second locking portions 621a are formed so that the first locking portion can be easily locked between them and is difficult to come off.

An extension 622 is formed on the other end of the end cap 62, which is different from the end where the second locking portion 621a is formed. The extension 622 is arranged on the indoor side of the roll screen 1. Like the second locking portion 621a, the extension 622 is formed by extending the end opposite the direction in which the tip of the engagement portion 624 bends in the horizontal direction. The extension 622 is formed so that one end facing the door stop frame 3 is wide and the other end is inclined so that it is narrower. When the first locking portion and the second locking portion are locked, the inclined end surface of the extension 622 abuts against the rotation prevention portion 322.

In this way, the locking mechanism of the roll screen door 1 disclosed herein is configured to maintain a locked state at two locations, the inside and outside of the room. This prevents the roll screen door 1 from being unintentionally unlocked. In addition to the above, all of the locking mechanisms of the roll screen door 1 are located inside the guide frame 5, which is difficult to see. This improves the design of the roll screen door 1.

Next, the operation of engaging the first locking portion 321 with the second locking portion 621a and locking the frame member 6 at a position close to the door stop frame 3 will be described. In order to close the roll screen 1, the user (hereinafter simply referred to as "user") who operates the roll screen 1 grips the handle portion 63 of the frame member 6 and slides the frame member 6 from the Y1 direction to the Y2 direction. When the frame member 6 is slid to a position close to the door stop frame 3, one of the pair of second locking portions 621a provided on the end cap 62, which is located on the Y2 direction side, abuts against the first locking portion 321. In this state, when the user further applies normal force in the Y2 direction, one of the second locking portions 621a moves over the first locking portion 321 and moves to the Y2 direction side. As a result, the end of the first locking portion 321 on the Y2 side comes into contact with the end of one of the second locking portions 621a on the Y1 side, and is locked against the biasing force in the Y1 direction applied to the frame member 6.

In the locked state, a biasing force is applied to the frame member 6 in the Y1 direction. Therefore, if an external force is applied to the frame member 6 or the mesh body 7, there is a risk that the locked state may be released unintentionally. However, in the locked state, the rotation prevention portion 322 and the end face of the extension portion 622 abut against each other, preventing the frame member 6 from rotating. Therefore, it is possible to prevent the locked state of the roll screen 1 from being released unintentionally.

Next, the operation for releasing the locked state between the first locking portion 321 and the second locking portion 621a will be described. To release the closed state of the roll screen door 1, the user grasps the handle portion 63 of the frame member 6 and rotates it in the Y1 direction, i.e., clockwise in a plan view. This releases the locked state between the first locking portion 321 and the second locking portion 621a. Therefore, the user can move the frame member 6 in the Y1 direction in accordance with the Y1-direction biasing force applied to the frame member 6, and open the roll screen door 1.

When the frame member 6 is rotated clockwise in a plan view, the end cap 62 is rotated in the direction of the arrow y1 shown in FIG. 7. As a result, the second locking portion 621a is moved to a position where the end of the first locking portion 321 on the Y2 side and the end of the second locking portion 621a on the Y1 side do not abut each other. This releases the locking state between the first locking portion 321 and the second locking portion 621a. At this time, the rotation prevention portion 322 and the end face of the extension portion 622 abut each other. However, the rounded end face of the extension portion 622 can be rotated along the rounded end face of the rotation prevention portion 322. The above rotational movement can be performed by the user's normal force. This allows the locking state of the roll screen 1 to be released only when the user intends to do so.

The above describes preferred embodiments of the present disclosure, but the present disclosure is not limited to the contents of the above embodiments, and can be modified as appropriate within the scope that does not change the gist of the present disclosure.

The storage frame 2 of the roll screen 1 described above constitutes the vertical frame of the roll screen 1. However, the storage frame may constitute either the upper or lower frame of the roll screen. In this case, the guide frame constitutes the left and right vertical frames. The mesh is pulled out in the vertical direction from the storage frame.

The storage frame 2 of the roll screen 1 described above is arranged on only one of the left and right sides of the opening 100. However, the roll screen 1 may be a double-pull type in which the storage frame 2 is arranged on both the left and right sides of the opening 100.

1 Roll screen, 2 Storage frame, 3 Vertical frame (door stop frame), 31, 32 Connecting member, 321 First locking part, 4, 5 Guide frame, 6 Frame member, 61, 62 End cap, 621a Second locking part, 7 Mesh body

Claims (4)

a storage frame for winding and storing the net body;
A frame member attached to a tip of the net body pulled out from the storage frame;
A guide frame that slidably supports both ends of the frame member,
A first engaging portion provided on the exterior side of the room and engaged with a part of the frame member;
A rotation prevention portion is provided on the indoor side to prevent the frame member from rotating ,
The guide frame has a rail that slidably supports the frame member,
The anti-rotation portion has a convex shape formed to protrude toward the rail, and prevents rotation of the frame member by abutting against an extension portion provided on the frame member and having a convex shape formed to protrude toward the anti-rotation portion . The roll screen door according to claim 1, wherein the end cap of the frame member is provided with a second locking portion that locks with the first locking portion. The roll screen door according to claim 1 or 2, wherein the first locking portion and the rotation prevention portion are provided on a connecting member that connects the guide frame and the vertical frame. The roll screen door according to any one of claims 1 to 3, in which a rail that slidably supports the frame member is integrally formed with the guide frame.

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