JP4637796B2 - Winding screen device and method for replacing screen in the device - Google Patents

Description

  The present invention relates to a roll-up screen device that facilitates screen replacement and a screen replacement method in the device.

Conventionally, one end of the screen is fixed to a slidable movable rod on the screen frame, and the other end of the screen is fixed to a winding shaft that is rotated by a biasing force of a spring in the winding box. A winding screen device in which the screen is wound around a winding shaft is generally well known, without needing to be particularly exemplified. In this type of screen device, when the screen is torn, torn, etc., or becomes dirty due to long-term use and it is necessary to replace the screen, generally, the entire take-up shaft around which the screen is wound is replaced. Or, it was handled by replacing the entire take-up box. However, in these methods, members other than the screen that do not need to be replaced are also replaced, which is not only wasteful but also increases the cost for replacing the screen. It was.
Thus, it is possible to replace the screen by the user, but in that case, even if the existing screen can be removed from the take-up shaft, a new screen can be attached to the take-up shaft. It is necessary to attach the screen to the winding shaft in a straight state so that the screen does not become wrinkles, and it is necessary to adjust the biasing force of the winding spring. In this way, it was extremely difficult for the user himself to replace only the screen.

  In addition, it is possible to exchange only the screen by sending the above screen including the winding shaft or winding box to the manufacturer, but it is not only troublesome to remove the winding shaft and send it to the manufacturer. However, it has been pointed out that it takes time and money to exchange and return the screen.

On the other hand, although there is a method in which a general user can replace only the screen, in the conventional replacement method, it is necessary to remove only the screen from the installed screen device. Depending on the installation conditions of the installation location, it may be difficult to replace the screen.
That is, when removing only the screen from the existing screen device, it is necessary to remove the screen from the movable rod and the winding shaft to which the tip and the base end of the screen are fixed, respectively. It can be installed in a place under various installation conditions such as a building opening in a narrow space, and the screen is removed from the existing screen device installed in such a place. Performing in a space under limited conditions around the device is not only difficult for general users, but it can be dangerous, and it requires a lot of skill and is not always easy. It was not a method that could be replaced.
In view of the above, a roll-up screen device that allows a user to replace only the screen easily, safely, and inexpensively without being affected by the installation conditions of the place where the screen device is installed, and the screen device There is a need for a method of replacing the screen in the apparatus.

  The technical problem of the present invention is that the top end of the screen is detachably fixed to a movable slidable slide along the screen frame, and the base end of the screen is rotated by the spring biasing force in the winding box. A horizontal pulling mechanism in which the screen is wound around the winding shaft by the biasing force of the spring while the upper and lower ends along the opening and closing direction of the screen are guided by the screen frame while being detachably fixed to the winding shaft. In the winding screen device, the screen device was installed by making it possible to easily remove the screen from the winding box together with a movable rod and a winding shaft fixed to the tip and base ends of the existing screen, respectively. Without being affected by the installation conditions at the site, ordinary users can replace only the screen easily, safely and inexpensively. It is to provide a screen changing method in the take-up screen device, and the device can.

In order to solve the above-mentioned problems, the present invention fixes the front end of the screen to a slidable movable rod along the screen frame while detachably fixing the base end of the screen in the winding box by the biasing force of the spring. The screen is wound around the winding shaft by the biasing force of the spring while the upper and lower ends along the opening and closing direction of the screen are guided by the screen frame while being detachably fixed to the rotating winding shaft. In the horizontal pull-up screen device, the screen frame includes a frame main body and a pair of inner rails. The inner rail guides upper and lower ends along the opening and closing direction of the screen, and Both end portions are slidably supported, and the inner rail is provided inside the frame body for the opening and closing operation of the screen. And position, displaced freely configured and the second position of the indoor side performing screen removable, open cover for opening the winding shaft and its supporting member to a size that can be taken out to the take-up box provided, the winding A take-up shaft support member detachably provided in the take-up box is formed so as to be able to be taken out together with the take-up shaft, and when the movable rod is removed from the take-up box and the take-up shaft supporting member, In the state where the inner rail is in the second position, the movable rod can be introduced into the winding box along with the screen from the screen frame, and can be taken out through the box. The shaft is provided with fixing means for temporarily disabling the urging force of the winding spring.

In addition, in the winding type screen device of the present invention for solving the above-mentioned problems, the screen replacement method is such that the opening cover of the winding box is opened and the urging force of the winding shaft spring is temporarily applied by the fixing means. In the state where the winding shaft support member is taken out from the winding box together with the winding shaft, and then the inner rail is changed from the first position to the second position in the frame body, The movable rod is introduced into the winding box along with the screen from the screen frame along the inner rail, the movable rod is taken out through the winding box, and then the tip of the existing screen to be replaced is removed. The screen is removed from the movable rod and the base end of the screen is removed from the winding shaft, and then a new replacement screen is obtained. Is fixed to the distal end to the movable rail, it is characterized by securing the proximal end of the screen to the winding shaft.

  The roll-up screen device having the above-described configuration does not require replacement of unnecessary members such as a take-up shaft and a take-up box when replacing the screen, and is installed in a place where the screen device is installed. Without being affected by the conditions, only the screen can be replaced easily, safely and inexpensively. In addition, a series of screen replacement work itself can be performed at a safe place away from the installation place of the screen device, and therefore the user himself / herself is not affected by the installation conditions of the place where the screen device is installed. Can be easily and safely replaced.

  In this case, when the inner rail is in the first position, the movable rod is prevented from being introduced into the take-up box, and the movable rod is taken up only when the inner rail is in the second position. Therefore, when the screen device is opened and closed, it is possible to prevent malfunction such as the movable rod being erroneously introduced into the winding box.

  According to the winding screen device of the present invention described in detail above and the method for replacing the screen in the device, the screen can be easily moved together with the movable rod and the winding shaft fixed to the front end and the base end of the existing screen, respectively. By making it possible to take out from the winding box, a general user can easily and safely replace only the screen without being affected by the installation conditions of the place where the screen device is installed. Since there is no need to replace unnecessary members such as a winding shaft and a winding box, as a result, only the screen can be replaced at low cost.

  BEST MODE FOR CARRYING OUT THE INVENTION A best mode for carrying out a winding screen device according to the present invention and a screen replacement method in the device will be described in detail with reference to the drawings. FIGS. In this embodiment, a windscreen device that can open and close a screen wound around a windup shaft by lateral pulling is provided. It shows a case where it is applied to a screen door for blindfolding or insect protection.

  1 to 3 schematically wraps a screen 12 in a winding box 4 constituting one side frame of a screen frame 2 installed in a building opening. The winding shaft 14 is rotatably supported, and the movable frame 16 for opening and closing the screen 12 is slidably supported on the horizontal frames 8 and 10 disposed above and below the winding box 4. At the same time, the upper and lower ends of the screen 12 in the opening and closing direction are guided by the horizontal frames 8 and 10 via inner rails 20 and 24, respectively, so that the screen 12 can be opened and closed in the screen frame 2.

  More specifically, the screen frame 2 includes upper and lower horizontal frames 8 and 10 connected to upper and lower ends of the winding box 4 constituting one side frame, and a frame body facing the winding box 4. Are connected to each other, and a coil spring 15 is built in the winding shaft 14 of the winding box 4, and the rotational biasing force caused by the torsion of the coil spring 15 is taken up by the winding shaft 14. As a drive source for winding the screen 12 by the above, the upper and lower ends along the opening and closing direction of the screen 12 are automatically opened while being guided by the inner rails 20 and 24 in the horizontal frames 8 and 10 of the screen frame 2 respectively. The movable rod 16 used for the opening / closing operation of the screen 12 is slidably supported by the horizontal frames 8 and 10 at the tip of the screen 12. By engaging or magnetically attached to the side frame 6 to hangers were attached to the movable rail 16 or a magnet (not shown) Zhang 設時 of the screen 12, so that can hold the screen 12 in the stretched state.

The winding box 4 is configured such that a front portion along the entire length of the winding shaft 14 can be opened by a detachable opening cover 4A. That is, as can be seen from FIGS. 3 and 4 (a), the open cover 4A in the winding box 4 has a slit on the front side that forms a slit 5 for leading the screen 12 out of the winding box 4. It is formed by the front side part of the winding box 4 including the edge 4a.
The open cover 4A is configured such that the opposite edge 4b of the slit edge 4a can be opened and closed by rotation at the front edge of the winding box 4 and can be detached from the winding box 4. Further, the winding cover 4 can be removably fixed from the winding box 4 by other means, and the winding box 4 is held in an open state without removing the opening cover 4A from the winding box 4. You can also

  Note that the open range of the winding box 4 by the open cover 4A includes the movable rod 16 and the winding shaft 14 fixed to the distal end and the base end of the existing screen 12, respectively, and winding shaft support members 34 and 36 to be described later. The screen 12 can be easily taken out from the take-up box 4 and the urging force of the spring 15 of the take-up shaft 14 is temporarily inactive or does not become an obstacle to work for canceling the inactive state. The slit edge 4a on the front side of the slit 5 is also covered with the cover 4A in consideration of easy removal from the winding box 4 such as the winding shaft 14, the movable rod 16 and the screen 12. It is desirable to be a part of

  As shown in FIG. 2, the upper and lower horizontal frames 8 and 10 constituting the screen frame 2 include frame bodies 18 and 22 and a pair of inner rails 20 and 24, respectively. Since the configurations of the horizontal frame 8 and the horizontal frame 10 are substantially the same, only the configuration related to the upper horizontal frame 8 will be described in the following description unless otherwise required. Therefore, the description of the configuration related to the horizontal frame 10 is omitted.

The frame main body 18 constituting the horizontal frame 8 has engaging walls 18b and 18b formed at opposing positions on the inner surfaces of both inner side walls 18a and 18a along the longitudinal direction thereof. An open groove 18c is formed between the edges.
On the other hand, the inner rail 20 has engaging flanges 20b, 20b engaged with the engaging walls 18b, 18b of the frame body 18 at both edges of a pair of parallel side walls 20a, 20a along the longitudinal direction. Engagement ridges 20c and 20c that are engaged with engagement rods 16b and 16b, which will be described later, provided at both ends of the movable rod 16 are formed. A slit 20d is formed along the longitudinal center of the side wall end on the side where the engaging protrusions 20c, 20c are provided. In the slit 20d, the upper and lower sides along the opening / closing direction of the screen 12 are formed. By locking the locking member 26 attached to the end portion, the upper end portion along the opening / closing direction of the screen 12 is guided.

  Then, the engagement walls 18b and 18b of the inner rail 20 are engaged with the engagement walls 18b and 18b of the frame main body 18 so that the engagement walls 18b and 18b of the frame main body 18 are opened. A first position outside the room (see FIGS. 4A and 4B) where the inner rail 20 is used to open and close the screen 12 in the groove 18c, and a second position inside the room where the screen 12 is attached and detached (see FIG. 4). 5 (a) and (b)). When the inner rail 20 is in the first position, the buffer member 16a of the movable rod 16 hits the end of the wall portion 4B on the back side of the winding box 4, so that the movable rod 16 is wound up. Since the movable rod 16 is introduced into the winding box 4 only when the inner rail 20 is in the second position, it is prevented from being introduced into the box 4, A malfunction such as the movable rod 16 being introduced into the winding box 4 can be suppressed. The inner rails 20 and 24 are pressed against the first position by the operating force when the movable rod 16 is opened and closed, so it is not necessary to provide means for holding the inner rails 20 and 24 at the first position or the second position. In order to stabilize the operation, means for holding at one or both of the first position and the second position may be provided. The slit edge 4a of the open cover 4A can also be formed so that the movable rod 16 hits when the open cover 4A is closed.

As shown in FIG. 2, the screen 12 is provided with locking members 26, 26 at upper and lower ends along the opening and closing direction, respectively, and the locking members 26, 26 are placed in the horizontal frames 8, 10. By engaging with the inner edges of the slits 20d and 24d of the inner rails 20 and 24, the inner rails 20 and 24 are caused to guide the upper and lower ends along the opening / closing direction of the screen 12. Further, as can be seen from FIGS. 3 to 6, an engagement member 28 for fixing to the movable rod 16 is attached to the tip of the screen 12, and the engagement member 28 is formed on the movable rod 16. By engaging with an engaging groove 16c described later, the tip of the screen 12 is detachably fixed to the movable rod 16.
As the locking member 26 and the engaging member 28, for example, not only a synthetic resin strip member having a simple protrusion on one side end, but also one half of the slide fastener joined to each other, or A member corresponding to that can be used as it is.

As shown in FIG. 2, the movable rod 16 extends along the indoor side and outdoor side surfaces at both ends in the longitudinal direction, and stands upright with its front end relatively curved in a bowl shape. Engagement rods 16b and 16b are formed so as to be engaged with the engagement protrusions 20c and 24c of the inner rails 20 and 24 in the horizontal frames 8 and 10, respectively. Further, as can be seen from FIGS. 3 to 6, an engaging groove 16 c for engaging an engaging member 28 attached to the screen 12 is formed on one side surface along the longitudinal direction of the movable rod 16. The front end of the screen 12 is detachably fixed to the movable rod 16 by engaging the engagement member 28 with the engagement portion 16d on the inner bottom of the engagement groove 16c.
The movable rod 16 is configured so that it can be taken out from the winding box 4 together with the screen 12 or the like, that is, in the state where the winding shaft 14 or the like is removed from the winding box 4, When the inner rails 20 and 24 in 8, 10 are moved to the second position on the indoor side, the movable rod 16 can be introduced into the winding box 4 along the inner rails 20 and 24, and the winding It can be taken out through the take-up box 4. Therefore, the movable rod 16 is formed to have dimensions (thickness, width in the opening / closing direction of the screen 12, etc.) that allow this removal (see FIGS. 5 and 6).

  As shown clearly in FIG. 1, the winding shaft 14 is rotatably supported by brackets 30 and 32 at the upper and lower ends of the winding box 4 via winding shaft support members 34 and 36, respectively. ing. The take-up shaft 14 has a fixed shaft 38 inserted therein, and one end of the fixed shaft 38 protruding upward from the take-up shaft 14 is connected to the take-up shaft support member 34 at the upper end of the take-up box 4. The other end of the spring 15 is fixed to the take-up shaft 14 so as to be freely rotatable with respect to the fixed shaft 38. It is fixedly attached to the spring receiver 42. Accordingly, the winding shaft 14 of the screen 12 is connected to the fixed shaft 38 fixed to the winding shaft support member 34 via the spring 15.

  The take-up shaft support member 34 on the take-up shaft 14 is provided so as to be removable together with the take-up shaft 14 from the take-up box 4 when the screen 12 is attached and detached. Further, the take-up shaft supporting member 34 is provided. A screw 44 constituting a fixing means for temporarily disabling the urging force for winding the screen 12 by the spring 15 when the screen is attached or detached is screwed. This screw 44 comes to a position facing the open portion of the cover 4A in the winding box 4 in the fully extended state of the screen 12 in which the movable rod 16 is held by the side frame 6 facing the winding box 4. Preferably, the screen 12 applied to the take-up shaft 14 from the spring 15 is fixed by screwing it into the take-up shaft 14 and fastening it to the fixed shaft 38 inserted into the take-up shaft 14. The urging force in the taking direction is temporarily disabled.

In this embodiment, the length of the screen 12 is set so that the screen 12 by the spring 15 is stretched when the screen 12 is stretched with the movable rod 16 held by the side frame 6 facing the winding box 4. A screw 44 as a fixing means for temporarily disabling the urging force for winding is provided so as to come to a position facing the open portion of the cover 4A. This is because the screw 44 is screwed into a place hidden under the screen 12 along with the winding of the screen 12, so that the screw 44 can be easily screwed. It is provided in a place that is not hidden by the winding of the screen 12 so that the urging force of the spring 15 can be temporarily inactivated when the screen 12 is in an arbitrary open position. If, the screen 12 is at least movable stile 16 when the length that can be held to the side frame 6 opposite to the winding box 4 can be set freely.
Here, the fixing means for temporarily disabling the urging force for winding the screen 12 by the spring 15 is not limited to the screw 44, and the winding shaft 14 can be easily fixed. Other means can be employed.

When replacing the screen 12 in the winding screen device having the above configuration, first, the screen 12 is fully stretched by holding the movable rod 16 on the side frame 6 facing the winding box 4 ( Next, the open cover 4A on the front surface of the winding box 4 is opened (see FIGS. 4A and 7), and the winding shaft is opened from the opening portion of the open cover 4A in the winding box 4. 14 is tightened to fix the winding shaft 14 to the fixed shaft 38 inserted through the screw 44, thereby making the urging force for winding the screen 12 by the spring 15 ineffective. Thus, the winding shaft 14 is temporarily fixed (see FIG. 8). Then, the take-up shaft supporting members 34 and 36 that are detachably provided in the take-up box 4 are taken out together with the take-up shaft 14 (see FIG. 5A), and then the inner rails of the horizontal frames 8 and 10 are taken. From the first outdoor position (see FIGS. 4 (a) and 4 (b)) used for opening and closing the screen 12 in the frame main bodies 18 and 22, the second indoors side where the screen 12 is attached and detached. Displaced to a position (see FIGS. 5A and 5B), in this state, the movable rod 16 is introduced into the winding box 4 together with the screen 12 along the inner rails 20 and 24 (FIGS. 5 and 5). 6 and 9), the movable rod 16 is taken out through the winding box 4. Then, the tip of the existing screen 12 to be replaced is removed from the movable rod 16 by releasing the engagement of the engagement member 28 engaged with the engagement portion 16d in the engagement groove 16c of the movable rod 16. At the same time, the base end of the screen 12 is removed from the winding shaft 14 (see FIG. 10).
The existing screen 12 can be removed from the screen device by the above extremely simple procedure.

  As described above, the screen 12 can be easily taken out from the take-up box 4 together with the movable rod 16 and the take-up shaft 14 fixed to the front end and the base end of the existing screen 12, respectively. The replacement work itself of the screen 12 can be performed at a safe place away from the place where the screen device is installed, and therefore the user himself / herself can be screened without being affected by the installation conditions of the place where the screen device is installed. Only 12 can be easily and safely exchanged.

After these procedures, the engaging member 28 attached to the tip of the new replacement screen 12 is engaged with the engaging groove 16c of the movable rod 16, so that the tip of the screen 12 is moved to the movable rod 16. At the same time, the base end of the screen 12 is fixed to the winding shaft 14.
After the above procedure, the movable rod 16 fixed to the tip of the new replacement screen 12 is in a state where the inner rails 20 and 24 of the horizontal frames 8 and 10 are in the second position on the indoor side in the frame main bodies 18 and 22. The guide rods 16b and 16b of the movable rod 16 are engaged with the engagement protrusions 20c and 20c of the inner rails 20 and 24 through the winding box 4 and into the horizontal frames 8 and 10, respectively. The both ends of the movable rod 16 are slidably supported by the inner rails 20 and 24, and the locking members 26 attached to the upper and lower ends along the opening and closing direction of the screen 12 are slits of the inner rails 20 and 24. By engaging with 20d, 24d, the inner rails 20, 24 are guided at the upper and lower ends along the opening and closing direction of the screen 12, and then the winding shaft 4 is rotatably supported by brackets 30 and 32 at the upper and lower ends of the winding box 4 via winding shaft support members 34 and 36, and in this state, the movable rod 16 is held by the side frame 6 and the screen is In the state where 12 is fully tensioned, by loosening the screw 44 fixed to the fixed shaft 38 of the winding shaft 14, the temporary inaction of the spring 15 of the winding shaft 14 is released. .
The replacement operation of the screen 12 is completed by the extremely easy procedure as described above.

  According to the winding screen device having the above-described configuration and the method of replacing the screen 12 in the device, the screen 12 can be easily moved together with the movable rod 16 and the winding shaft 14 fixed to the distal end and the proximal end of the existing screen 12, respectively. In addition, since it can be taken out from the take-up box 4, the general user can easily and safely replace only the screen 12 without being affected by the installation conditions of the place where the screen device is installed. In addition, since it is not necessary to replace unnecessary members such as the winding shaft 14 and the winding box 4, as a result, only the screen 12 can be replaced at low cost.

  In addition, it is assumed that the upper and lower horizontal frames 8 and 10 constituting the screen frame 2 include frame main bodies 18 and 22 and a pair of inner rails 20 and 24, and the inner rails 20 and 24 are arranged in the opening and closing direction of the screen 12. The upper and lower end portions are guided, and both end portions of the movable rod 12 are slidably supported so that the inner rails 20 and 24 are positioned in the frame main bodies 18 and 22 at the first position on the outdoor side and the indoor side. When the inner rails 20 and 24 are in the first position, the movable rod 16 is prevented from being introduced into the take-up box 4, and the inner rail 12. Is configured so that the movable rod 16 is introduced into the winding box 4 only when the screen device is in the second position. 6 can be suppressed malfunction such as accidentally introduced accidentally winding box 4.

  In the above-described embodiment, the upper and lower horizontal frames 8 and 10 constituting the screen frame 2 are configured to include the frame main bodies 18 and 22 and the pair of inner rails 20 and 24, and the inner rail 20 , 24 are displaceable within the frame bodies 18 and 22 to a first position outside the room for opening / closing the screen 12 and a second position inside the room where the screen 12 is attached / detached. The movable rod 16 is not brought into contact with the wall 4B on the back side of the winding box 4, for example, but is brought into contact with a detachable stopper or the like, and the stopper is removed. Dimensions that can be introduced into the winding box 4 from the horizontal frames 8 and 10 and can be taken out through the winding box 4 (thickness and opening / closing direction of the screen) Etc.), the horizontal frame 8, 10 can be introduced into the take-up box 4 together with the screen 12 from the horizontal frame 8, 10 and can be taken out through the take-up box 4. 10 can be constituted by a single frame.

It is a partial fracture front view of a winding type screen device concerning the present invention. It is a sectional side view of FIG. FIG. 2 is a plan sectional view of FIG. 1. (A) is a plane sectional view explaining a mode in which an open cover of the winding box is opened in the screen removal procedure, and (b) is a diagram explaining the position of the inner rail in the frame body of the screen frame in the state of (a). It is a partial sectional side view. (A) is the plane cross section explaining the aspect which takes out a winding axis | shaft and a winding box from the winding box in a screen removal procedure, and introduces a movable rod into the winding box along the inner rail of a screen frame. FIG. 4B is a partial cross-sectional view illustrating the position of the inner rail in the frame body of the screen frame in the state of FIG. It is a plane sectional view explaining the state which introduced the movable rod in the winding box in the procedure for removing the screen. It is a perspective view in the state similar to (a) of FIG. 4 in the removal procedure of a screen. It is a perspective view in the state similar to Fig.5 (a) in the removal procedure of a screen. It is a perspective view in the state similar to FIG. 6 in the removal procedure of a screen. It is a perspective view explaining the aspect which removes a movable rod and a winding shaft from the existing screen in the removal procedure of a screen, and replaces | exchanges for the replacement screen.

Explanation of symbols

2 Screen frame 4 Winding box 4A Open cover 6 Side frame 8, 10 Horizontal frame 12 Screen 14 Winding shaft 15 Coil spring 16 Movable rod 18, 22 Frame body 20, 24 Inner rail 34, 36 Winding shaft support member 44 Screw

Claims (2)

The tip of the screen is detachably fixed to a slidable movable rod along the screen frame, and the base end of the screen is detachably fixed to a take-up shaft that is rotated by the urging force of a spring in the take-up box. In the horizontal winding roll-up screen device in which the upper and lower ends along the opening and closing direction of the screen are guided by the screen frame, and the screen is wound around the winding shaft by the urging force of the spring.
The screen frame includes a frame main body and a pair of inner rails, and guides the upper and lower ends of the inner rail along the opening and closing direction of the screen, and supports both ends of the movable rod slidably,
The inner rail is configured to be freely displaceable in a first position outside the room for opening and closing the screen and a second position on the indoor side where the screen is attached and detached in the frame body,
The winding box is provided with an open cover that opens to a size that allows the winding shaft and its supporting member to be taken out, and the winding shaft support member that is detachably provided in the winding box can be taken out together with the winding shaft. Forming,
When removing the take-up shaft and the take-up shaft supporting member from the take-up box, the moveable goat is removed from the screen frame along the inner rail while the inner rail is in the second position. It can be introduced into the winding box together with the screen, and can be taken out through the box,
The winding shaft is provided with fixing means for temporarily disengaging the urging force of the winding spring.
A roll-up screen device characterized by that. A method for replacing a screen in the winding screen device according to claim 1,
Opening the open cover of the winding box, temporarily suspending the urging force of the spring of the winding shaft by the fixing means,
Taking out the winding shaft support member from the winding box together with the winding shaft,
Next, in a state where the inner rail is changed from the first position to the second position in the frame main body, the movable rod is introduced from the screen frame along with the screen into the winding box along the inner rail. And take out the movable rod through the winding box to the outside,
Subsequently, the tip of the existing screen to be replaced is removed from the movable rod, and the base end of the screen is removed from the winding shaft.
After that, the tip of a new replacement screen is fixed to the movable rod, and the base end of the screen is fixed to the winding shaft .
A screen replacement method in a winding screen device.

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