JP2022049360A - Roll screen device - Google Patents

Abstract

To suppress the occurrence of complicated wrinkles or the like in a screen wound around a winding shaft by eliminating a cause adversely affecting the tension state of the screen when a slipping-off preventive member at both side ends of the screen is guided by a guide groove of a screen frame in a roll screen device.SOLUTION: A slipping-off preventive member 10 to be guided by a guide groove 9 of a screen frame 3 is attached along both ends in a winding direction of a screen 5 on a take-up shaft 2. The slipping-off preventive member includes a mounting piece 11 fixed to a side end of the screen and an engagement piece 12 connected to the other side of the mounting piece thereof and having a tip end engaged with a mouth edge of a slit 14 in the screen frame 3, which are configured to include a large number of hard longitudinal wires 15 arranged in parallel toward an axial direction of the take-up shaft with their linearity held in an elastic manner and flexible wires 16 connecting them in a bendable manner so that the engagement of the slipping-off preventive member with respect to the screen frame is established by bringing a free end 12a of the mounting piece into engagement with an opening inner edge of the slit.SELECTED DRAWING: Figure 6

Description

The present invention relates to a roll screen device applied to various uses, and more specifically, a screen frame is provided at a side end of a roll screen that is stretched and stored by horizontal pulling or vertical pulling by winding on a take-up shaft. It relates to a roll screen device provided with a guide structure for stably guiding in a retaining state.

In roll screen devices for various purposes such as insect screen doors, one end of the screen is a screen with fastener-shaped retaining members attached along both ends in the winding direction to the winding shaft that rotates in the winding direction of the screen. The slide bar is fixed to the other end of the screen, and the retaining member has a large number of engages along the other side of the strip-shaped mounting piece that fixes one side to the side end of the screen. It is configured by attaching a row of engaging elements so that the row of engaging elements can be slidably engaged with the engaging groove of the guide rail provided in the screen frame for guiding the side edge of the screen. This has been disclosed in Patent Document 1 and the like, and has been well known in the past. As the retaining member in the well-known roll screen device, it is customary to use a half body of a fastener which is often used in clothing and the like.

In the well-known roll screen device described above, the engaging element on the tip end side of the fastener-shaped retaining member attached to both ends of the screen attached to the winding shaft in the winding direction is the groove of the engaging groove of the guide rail. Since it is larger than the width and is slidably engaged and guided inside the engagement groove, when the screen is wound around the take-up shaft for its storage, the screen itself is wound around the take-up shaft. Compared to the winding diameter of the taken part, the winding diameter of the part where the engagers of the retaining members at both ends of the screen are wound around the winding shaft becomes thicker, and the difference between the two winding diameters is large. At the same time as it becomes relatively large, many of the above-mentioned engagers are also wound in a state of being displaced in the axial direction of the take-up shaft, so that the screen wound around the take-up shaft is loose in the take-up shaft direction. And complicated wrinkles are likely to occur, which may adversely affect the smooth stretching and winding of the screen, or the tension state of the stretched screen, and it is desired to eliminate them.

On the other hand, as a retaining member having no engaging element to increase the winding diameter of the screen, which corresponds to a fastener-shaped retaining member along both side ends of the screen in the roll screen device, Patent Document 2 and Patent Document 3 etc. Provided a strip of synthetic resin or the like that is inserted into a slit of a screen frame that guides both ends of the screen and engages in the screen frame along both side ends in the winding direction of the screen. Disclosed are retaining members having a locking piece that engages within the screen frame in a folded state along its tip for engagement of the strip, or in various forms similar thereto. ing.

Similar to the retaining member disclosed in Patent Documents 2 and 3, the basic configuration thereof is the other side of a band-shaped body (for example, the insertion piece 11 of Patent Document 2) whose one side is fixed to both side ends of the screen. A locking piece is provided on the side of the strip so as to be folded back and engaged in the screen frame. The screen provided with the retaining member is the strip when the screen is stored. It is necessary to wind the retaining member composed of the locking piece and the locking piece overlapped on the winding shaft together with the winding shaft. Therefore, if the retaining members attached to both ends of the screen can be made thin and flexible, the portion of the retaining member is wound when the screen is wound around the winding shaft. Although there is no inconvenience in removing the screen, as described in detail below, in order to apply a certain amount of tension in the width direction of the screen, the locking piece in the retaining member is the locking piece in the width direction of the screen. It is necessary to have a large drag against compression, and in order to apply the drag to the locking piece, the locking piece must be made of a material having strength against compression and have a required cross-sectional area. Not only does it need to be flexible enough to be easily wound in the winding direction.

More specifically, the locking piece, which is inserted into the slit of the screen frame in the retaining member and is provided so as to be folded over on the strip, has its tip end side in the screen frame and the mouth edge of the slit. Against the tension originally applied to the screen to which the locking piece itself is connected via the strip, or the tension associated with the wind or other external force acting on the screen. It should have a resistance to withstand the compressive force caused by them, and therefore, if it is easily buckled, deformed, bent, or broken by the force acting on the locking piece from the screen, its function can be satisfactorily fulfilled. Instead, it is necessary to have the strength to withstand the above compression while having the flexibility in the winding direction of the screen. Therefore, it is extremely difficult to adopt a configuration or material satisfying such conditions for the retaining member including the band-shaped body and the locking piece.

Japanese Unexamined Patent Publication No. 2018-105068 Jitsukaisho 59-177699 Jitsukaisho 60-004197 Gazette

A technical problem of the present invention is to attach retaining members attached to both ends of a screen in the winding direction to a pair of screen frames arranged on both sides of the screen in the winding direction in a roll screen device applied to various applications. In engaging and guiding the screen, the retaining member partially changes the winding diameter of the screen when the screen is wound around the winding shaft, like a known fastener-shaped retaining member. It is an object of the present invention to provide a roll screen device that suppresses the formation of complicated wrinkles or the like on the screen wound around the take-up shaft and eliminates the cause of adversely affecting the tension state of the screen without providing a binder. ..

More specifically, as the retaining member, one side is fixed to the side end of the screen, and the other side is connected in a folded shape along the other side to connect the tip of the slit in the screen frame. A large number of rigid warp strips in which a locking piece to be engaged with the mouth edge is arranged in parallel in the axial direction of the take-up shaft, and the struts are flexibly connected by flexible strips. Based on that finding, the screen has the flexibility to be easily wound in the winding direction, while the width direction of the screen is originally given to the screen. It is an object of the present invention to provide a roll screen device having a function of counteracting the tension applied to the screen and the tension caused by wind or other external force acting on the screen and counteracting the compressive force caused by the tension.

In order to solve the above problems, according to the present invention, a screen for guiding a winding shaft rotatably supported in the winding box to a pair of screen frames extending in parallel from both ends of the winding box is provided. A sliding bar is attached to the screen frame at the other end of the screen while winding from one end thereof, and the screen is provided with a guide groove in the screen frame along both ends in the winding direction. In a roll screen device in which a retaining member to be guided is attached and the retaining member is inserted into a slit of the guide groove opening inside the screen frame to engage the retaining member with the inner edge of the opening of the slit. The retaining members attached to both ends of the screen are a strip-shaped attachment piece that fixes one side along the side edge of the screen, and a strip-shaped attachment end that is narrowly joined to the tip of the attachment piece. Each of the mounting piece and the locking piece in the retaining member is elastically maintained in linearity when they are arranged in parallel in the axial direction of the winding shaft. A large number of hard lines are connected flexibly between the adjacent lines by a flexible line, so that the large number of parallel lines can be wound into a tubular shape. The engagement of the retaining member with the screen frame in the screen is such that the free end of the locking piece is inserted into the slit in the state where the joint portion between the mounting piece and the locking piece is inserted into the slit. Provided is a roll screen apparatus characterized in that the screen is held in a stretched state between screen frames, which is performed by locking the screen close to an inner edge of the opening.

In a preferred embodiment of the roll screen apparatus according to the present invention, the slit for engaging the screen retaining member inside the screen frame is provided inside the inner rail housed in the screen frame. Is configured as having an opening inside the screen frame.

Further, in a preferred embodiment of the roll screen device according to the present invention, the mounting piece and the locking piece constituting the retaining member are both a hard meridian constituting them and the meridian strip. It is formed into a woven fabric by knitting and weaving with flexible wires connecting the spaces, and at the joint with the locking piece along the tip of the mounting piece, the woven mounting piece and the locking piece are formed. It is assumed that they are connected by knitting and weaving in such a manner that they are in surface contact with each other, whereby the locking piece in the retaining member is configured to face in a direction along one side of the mounting portion.

In the roll screen device according to the present invention, as a preferred embodiment, when the retaining member in the screen is engaged with the screen frame or the inner rail housed in the screen frame, the slit in the guide groove is used. The free end side of the locking piece is separated from the mounting piece by contacting the facing surface of the locking piece with the locking piece inserted in the guide groove toward the facing surface side. A configuration is adopted in which a guide convex surface for pressing in the direction is provided so as to be able to hold the free end of the locking piece so as to be locked to a portion close to the inner edge of the opening of the slit. You can also.

Further, in another preferred embodiment of the roll screen apparatus according to the present invention, the free end of the locking piece in the retaining member engages with the inner edge of the opening inside the slit provided in the screen frame or the inner rail. A go-convex strip can be provided to stabilize the engagement of the screen with the screen frame by the retaining member.

Further, in the roll screen device provided with the engaging ridges, if there is a problem in moving the screen within the screen frame due to the rotation of the take-up shaft, the retaining members at both ends of the screen are configured. Encourage the locking piece to elastically open between the mounting piece and the locking piece until the locking piece does not come into contact with the engaging ridges on the inner edge of the opening of the slit in the guide groove. The V-shaped partially expanded portion pieces that reduce the sliding resistance between the two can be discretely arranged in the longitudinal direction of the retaining member to eliminate the problem.

Further, in another preferred embodiment of the roll screen apparatus according to the present invention, the attachment piece and the locking piece on the attachment end side of the retaining member attached to both ends of the screen to the slide bar are formed. A shaper is attached so that they can be guided into the guide groove in the screen frame at the start of tensioning from the screen winding state by operating the slide bar, and the shaper is guided by the screen frame. By holding the slide bar or the mounting piece held in the slit of the guide groove in the screen frame, the mounting piece in the retaining member is passed through the slit when the screen is started to be stretched. It is configured to have a function of guiding the locking piece into the inner guide groove and guiding the locking piece to the inner edge of the opening of the slit in the screen frame.

According to the roll screen device of the present invention described in detail above, in a roll screen device applied to various applications, the screen winding direction is set with respect to a pair of screen frames arranged on both sides of the screen winding direction. When the screen is guided by engaging the retaining members attached to both end ends, the problem that complicated wrinkles and the like are generated on the screen by using a known fastener-shaped retaining member is solved, and the known Instead of the retaining member of the screen, a mounting piece that fixes one side to the side edge of the screen and the other side are connected in a folded shape along the other side to engage the tip with the mouth edge of the slit in the screen frame. Assuming that a large number of rigid warp lines that parallelize the locking piece in the axial direction of the winding shaft are flexibly connected by flexible wires, the locking piece can be easily wound in the winding direction of the screen. In the width direction of the screen, the compressive force is opposed to the tension originally applied to the screen and the tension due to the wind or other external force acting on the screen. It has a function to counteract the screen, which makes it possible to stably apply tension to the screen between the screen frames.

It is a partial fracture front view which shows the outline of 1st Example of the roll screen apparatus which concerns on this invention schematically. It is a partially broken side sectional view which shows the outline of the said 1st Example. It is a cross-sectional view at the position AA of FIG. It is a partial enlarged explanatory view which shows the structural example of the material of the attachment part piece and the locking piece which constitutes the retaining member attached along both side ends of the screen in the winding direction in this invention. In the first embodiment, it is necessary to show a state in which a shaping material is attached to the attachment end side of the screen of the retaining member to the slide bar, and a partially expanded portion piece is attached in the longitudinal direction of the retaining member. It is a part enlarged sectional view. It is a cross-sectional view at the BB position in FIG. It is a cross-sectional view at the CC position in FIG. (A) is a perspective view of the shaping material shown in FIG. 5, and (b) is a perspective view of the partially expanded portion piece shown in FIG. FIG. 5 is a cross-sectional view showing a modified example in which the inner surface of the screen frame itself in the first embodiment has the form of an inner rail by a cross section at a position corresponding to FIG. BB in FIG. 5 shows the relationship between the retaining member used in the second embodiment of the present invention and the guide convex surface of the screen frame for adjusting the posture or the inner bottom of the inner rail in the screen frame. It is a cross-sectional view at the same position as the cross section.

The roll screen device according to the present invention not only has improved insect proofing, awning, shading, blindfolding, dust proofing, and airtightness at the opening of a building, but also has various types of opening / closing doors such as cupboards for storing foods and serving cars. It can be used to stretch a screen suitable for the application, and its basic configuration is rotatably supported in the take-up box 1 as shown in the first embodiment of FIGS. 1 to 3. A screen 5 guided by a pair of screen frames 3 extending in parallel from both ends of the take-up box 1 is wound on the take-up shaft 2 from one end thereof, and the pair of screen frames are wound on the other end of the screen 5. A slide bar 4 that guides the screen 3 to the screen 3 is attached so that the screen 5 can be moved and held between the stored state in which the screen 5 is wound around the take-up shaft 2 and the stretched state in which the screen frame 3 is stretched.

The take-up shaft 2 rotatably supported by the bearing portion 1a in the take-up box 1 of the roll screen device has an operation cord 8 wound around a sprocket 7 attached to one end thereof, and the operation cord 8 is used. Although the figure shows a screen 5 configured to be unwound or wound by an operation, such a rotation operation of the winding shaft 2 is not limited to the above configuration, and other known configurations may be used. Can be adopted. Since the screen 5 operated by the rotational drive of the take-up shaft 2 is guided along the guide groove 9 inside the screen frame 3, the slide bar 4 attached to the end of the screen 5 has both ends of the screen. It is necessary to configure it so as to guide along a part of the frame 3 or the like.

In FIGS. 1 to 3, the roll screen device is guided by a pair of screen frames 3 extending downward from both ends of the take-up box 1 configured by the upper horizontal frame to guide both ends of the screen 5. , The case where the roll screen device is used in which the screen 5 is stretched and stored vertically from the take-up shaft 2 is shown, but the take-up is rotatably supported in the vertical frame constituting the take-up box. The present invention described below can also be applied to a horizontal pulling roll screen device for stretching and storing the screen 5 by horizontal pulling by winding a screen around a shaft.

To specifically explain the configuration of the roll screen device according to the present invention, first, as shown in FIGS. 3 to 6, etc., the screen 5 has both ends in the winding direction to the winding shaft 2. Along the above, a retaining member 10 for guiding the pair of screen frames 3 to the inner guide groove 9 is attached. As shown in FIG. 6, the retaining member has a strip-shaped mounting portion 11 for fixing one side side along both side ends of the screen 5 by welding, adhesion, or the like, and the tip end 11a side of the mounting portion 11. It is provided with a band-shaped locking piece 12 joined at a narrow joint portion 13 with a connecting end aligned with the above. As shown in FIG. 6 and the like, the strip-shaped locking piece 12 to be joined to the mounting portion 11 can have its cut ends aligned at the joint portion 13, but it is clear from the following. As such, it is not limited to that.

Next, the materials constituting each of the attachment piece 11 and the locking piece 12 in the retaining member 10 will be described.
As shown in FIG. 4, the material constituting the mounting portion 11 and the locking piece 12 in the retaining member 10 is a large number of parallel hard meridians 15 and soft between the meridians 15. It is flexibly connected by the flexible streaks 16 to flexibly hold between the meridian strips 15. More specifically, the meridian 15 is made of a hard synthetic resin that elastically maintains linearity or a linear material similar thereto, and delicate chemical fibers or the like are formed between the adjacent meridians 15 in parallel. By connecting with the flexible wire strip 16 formed in the above, a large number of the above-mentioned meridian strips 15 in parallel in both the mounting portion piece 11 and the locking piece 12 are wound around the take-up shaft 2. The screen is formed so as to be oriented in the width direction of the screen 5 so that when the screen is wound into a cylindrical shape, the screen can be easily wound into a cylindrical shape on the winding shaft 2.

In addition, in the woven material formed by the hard meridian 15 and the soft flexible wire 16, both lines are shown as a simple plain weave in FIG. 4, but the meridian is the meridian. The woven fabric of the strips 15 and the flexible strips 16 does not necessarily have to be a plain weave as long as a large number of the above-mentioned meridian strips 15 arranged in parallel can be wound up in a blind shape together with the screen 5. The flexible wire strip 16 may be woven into the weave as appropriate, and such knitting can be easily performed by using various known knitting techniques without showing a specific example here. .. Further, the materials constituting the mounting portion 11 and the locking piece 12 do not necessarily have to be the same, and different materials can be selectively used. Further, as the woven material to be knitted as the warp line 15, the curing property of the raw yarn such as polyester or polypropylene is used, or a curing agent is applied to a chemical fiber of a polymer compound and dried by heating. The elastic linearity can be adjusted by performing the curing treatment of the above, adjusting the thickness of the fiber atom, or using the raw yarn having a core-sheath structure as the warp line 15.

As shown in FIG. 6, the joining of the mounting piece 11 and the locking piece 12 in the retaining member 10 is formed by aligning the connecting end of the locking piece 12 with the tip 11a side of the mounting piece 11. In the joint portion 13 having a width, a woven fabric in which both are integrated by weaving or knitting a rigid meridian strip 15 possessed by the mounting portion piece 11 and the locking piece 12 and a flexible wire strip 16 connecting the meridian strips. It is done by forming it into a shape. In such a configuration, a large number of hard meridian strips 15 whose linearity is elastically maintained on the free end 12a side of the locking piece 12 with respect to the mounting piece 11 keeps the form of parallel arrangement as much as possible. It is intended to elastically hold the morphology.

Then, as described above, if the mounting piece 11 and the locking piece 12 constituting the retaining member 10 are connected in such a manner that they are in surface contact with each other at the joining portion 13, the retaining member The meridian strip 15 of the locking piece 12 in 10 can be held in the width direction of the screen 5 in the mounting portion 11 as much as possible. Such an attitude of the locking piece 12 is caused by the tension originally applied to the screen 5 in the screen width direction by the locking piece 12, and the tension due to the wind or other external force acting on the screen. It is very suitable for exerting strength to withstand bending, breaking, etc. against the compressive force acting on the locking piece 12.

That is, the posture of the locking piece 12 is such that the meridian strip 15 in the locking piece 12 is directed in the direction of the compressive force acting on the locking piece 12 via the screen 5. The meridian strips 15 are not easily buckled, deformed, bent, or broken by force, and many of the meridian strips 15 in the locking piece 12 are arranged in the locking piece 12. Therefore, they effectively receive the above-mentioned compressive force.

Further, in the engagement of the retaining member 10 with the screen frame 3, the mounting portion piece 11 having a large number of hard warp lines 15 whose linearity is elastically maintained is arranged inside the screen frame 3. In a state where the posture is stabilized by inserting it into the slit 14 of the guide groove 9 in the inner rail 6, the free end 12a of the locking piece 12 overlapping the mounting portion piece 11 is inserted into the screen frame. This is done by locking the slit 14 to a portion of the slit 14 close to the inner edge 14a of the opening, whereby both ends of the screen 5 are held in a stretched state between the pair of screen frames 3.

In the screen frame 3 of the first embodiment, the inner rail 6 is housed inside the screen frame 3, and a guide groove 9 for engaging the retaining member 10 is provided in the inner rail. Like the screen frame 23 of the modified example shown, a guide groove 25 similar to the inner surface of the inner rail 6 is formed on the inner surface of the screen frame 23 itself, and the guide groove 25 is formed inside the screen frame 23 by a slit 24. It can also be configured as an opening.

Like the screen frame 3 of the first embodiment, the configuration using the inner rail 6 different from the screen frame 3 is, for example, a synthetic resin having excellent slidability with the retaining member 10 from the inner rail 6. The retaining member 10 formed of a material or the like and engaged with the guide groove 9 in the inner rail 6 to be slid smoothly, or is compatible with the retaining member 10 used in many types of screen devices. It is suitable for adopting the inner rail 6 for the purpose of standardizing and reducing the manufacturing cost, and therefore, whether or not to adopt the inner rail 6 can be appropriately selected.

Further, in locking the free end 12a of the locking piece 12 in the retaining member 10 to a portion close to the inner edge 14a of the opening of the slit 14, as shown in FIG. 6, the opening of the slit 14 is used. It is effective to provide the engaging ridge 14b on the inner edge 14a and engage the free end 12a of the locking piece 12 on the back surface side thereof in order to stably engage the retaining member 10 with the screen frame 3. Is.

However, as described above, the mounting piece 11 and the locking piece 12 constituting the retaining member 10 are connected to each other in a manner in which they are in surface contact with each other at the joining portion 13, thereby engaging in the retaining member 10. The direction of the stop piece 12 along the mounting piece 11, that is, the compression of the hard meridian strip 15 in the locking piece 12 that acts on the locking piece 12 via the mounting piece 11 by an external force acting on the screen 5. Despite the fact that the meridian strip 15 is prevented from being easily buckled and deformed, bent or broken in the direction of the force, the presence of the engaging ridge 14b causes the locking piece 12 to play. Holding the end 12a at a position separated from the surface of the mounting portion 11 reduces the effect obtained by bringing the locking piece 12 into surface contact with the mounting piece 11 at the joining portion 13. , Not always the proper configuration. In order to avoid a decrease in the effect, the engaging ridge 14b may be made small so that the position where the free end 12a of the locking piece 12 is engaged is as close to the mounting portion 11 as possible. desired.

Further, instead of installing the engaging ridge 14b, for example, when knitting the joint portion 13 between the mounting portion piece 11 and the locking piece 12, the mounting portion on the slit 14 side of the guide groove 9 in the joint portion 13 is used. A locking piece with respect to the meridian 15 of the mounting piece 11 by means such as sandwiching a wire for adjusting the opening between the two meridians 15 between the two meridians 15 in the piece 11 and the locking piece 12. If the free end 12a side of the meridian strip 15 of the 12 is slightly tilted and held in a state where it rises stably, the free end 12a of the locking piece 12 can be held without providing the above-mentioned problematic engaging ridge 14b. Can be locked to the opening inner edge 14a of the slit 14.

Further, the retaining member 10 in which the mounting piece 11 and the locking piece 12 are overlapped is slit with respect to the guide groove 9 (or the guide groove 25 of the screen frame 23 in FIG. 9) in the screen frame 3. It is desirable to allow the screen device to be inserted through the 14 in order to facilitate the assembly and maintenance of the screen device. In that case, the width of the slit 14 is set so that the mounting piece 11 and the locking piece 12 are overlapped. Although it is possible to insert the retaining member 10 as much as possible, the thickness of the retaining member 10 should be as equal as possible, and the retaining member 10 should be assembled / detached through the slit 14 in the screen frame 3. When the retaining member 10 is inserted to the innermost end of the guide groove 9, it is desirable that the free end 12a of the locking piece 12 is located beyond the tip of the engaging ridge 14b.

As described above, the retaining member 10 is formed in a woven form in which the locking piece 12 is integrated with the mounting piece 11 at the joint portion 13, and the free end 12a of the locking piece 12 is formed with respect to the mounting piece 11. If the side keeps the form of parallel arrangement as much as possible and the form is elastically held by the meridian strip 15, the retaining member 10 is moved to the screen frame 3 by the rotational drive of the take-up shaft 2. When the screen 5 is moved along the guide groove 9, the tip end side of the locking piece 12 in the retaining member 10 at both ends of the screen 5 comes into contact with the engaging ridge 14b or the like of the opening inner edge 14a of the slit 14. The sliding resistance is received by the screen 5, and the sliding resistance acts on the retaining member 10 over the entire length of the screen 5 unwound from the take-up shaft 2.

The sliding resistance with respect to the screen 5 can be ignored when the total length of the screen 5 in the winding direction is not so long, but it is required to be reduced when the total length of the screen 5 is long. In order to reduce such sliding resistance, as shown in FIGS. 5 and 8 (b), the locking piece 11 and the locking piece 12 in the retaining member 10 are locked. The partially expanded portion piece 17 that is urged to elastically open until the piece 12 does not come into contact with the engaging ridge 14b or the like of the opening inner edge 14a of the slit in the guide groove 9 is provided with the retaining member 10. It may be arranged discretely in the longitudinal direction of both end ends. Of course, when the total length of the screen 5 is not long, a single partially expanded piece 17 may be provided in the middle portion in the longitudinal direction of the screen.

The partially expanded piece 17 has a V-shape as shown in FIG. 8B by an elastic thin plate made of metal or synthetic resin, and has a short width form that does not interfere with winding to the winding shaft 2. It will be described later at the side edge of the screen as shown in FIG. 5, outside the mounting piece 11 and the locking piece 12, and outside the mounting piece 11 and the locking piece 12 in FIG. In the same manner as the shaping material 18 is fixed, it may be fixed by adhesion or the like.
The portion 17a on the side of the partially expanded portion 17 that is fixed to the mounting portion 11 has a length that is not inserted into the slit 14 of the mounting portion 11 or is inserted to some extent. As a result, it can be held in an unstable but almost fixed state while being fixed to the mounting portion 11 by adhesive or the like. Further, the portion 17b on the side fixed to the locking piece 12 in the partially expanded portion piece 17 is due to contact between the locking piece 12 and the engaging ridge 14b or the like due to the length extending toward the screen 5. The sliding resistance can be adjusted.

When the partially expanded portion pieces 17 as described above are discretely arranged in the longitudinal direction of the retaining member 10, the locking pieces described above are placed at the mounting position of the partially expanded portion 17 on the retaining member 10. A gap is formed between the engaging ridge 14b and the engaging ridge 14b, so that a portion is formed in which the sliding resistance does not act on the locking piece 12, and in the intermediate portion between the two mounting positions of the partially expanded portion piece 17, There is a possibility that some sliding resistance may remain, however, the sliding resistance in the intermediate portion should be reduced to an appropriate sliding resistance by adjusting the spacing between the mounting positions of the partially expanded portion pieces 17. Can be done.
The reduction of the sliding resistance by the partially expanded portion piece 17 described above is not limited to the case of the first embodiment using the inner rail 6, but as shown in FIG. 9, the inner rail is integrated with the screen frame 23. Of course, it can also be applied to the modified example. Further, the elasticity applied to the partially expanded portion piece 17 needs to be within a range that does not hinder the smooth winding of the screen 5 when it is wound.

Further, in the roll screen device, when assembling the retaining members 10 at both ends of the screen 5 wound around the take-up shaft 2 to the pair of screen frames 3, the retaining members attached to both ends of the screen 5. It is necessary to insert the mounting portion piece 11 and the locking piece 12 in 10 into an appropriate portion in the guide groove 9 in the inner rail 6 in the screen frame 3 having a cross section as shown in FIG. 7. The assembly of the retaining member 10 to the screen frame 3 is not limited to the case of the first embodiment using the inner rail 6, but also on both sides of the screen 5 in the guide groove 25 provided in the screen frame 23 of FIG. Of course, the same can be applied to the case where the mounting piece 11 and the locking piece 12 in the end retaining member 10 are inserted.

Specifically, in order to assemble the retaining member 10 to the screen frame 3, as shown in FIGS. 5 and 7, the mounting piece 11 and the locking piece 12 are overlapped at the joint portion 13. In a state where the mounting portion 11 of the joined retaining member 10 faces the slit 14 of the guide groove 9, the free end 12a of the locking piece 12 is the inner edge 14a of the opening of the slit 14 in the guide groove 9. Alternatively, it is necessary to engage the mounting portion 11 with the back surface side of the engaging ridge 14b provided therein so as to be in a retaining posture in which the mounting portion 11 holds the side edge of the screen 5 in the slit 14.

When the retaining members 10 attached to both end ends of the screen 5 are held against the pair of screen frames 3, the screen 5 is held between the pair of screen frames 3 in a stretched state. However, the work of causing the retaining member 10 to take such a retaining posture can be performed by performing the procedure as described below with reference to FIGS. 5, 7 and 8 (a). It's easy to do.

That is, in order to assemble the retaining members 10 at both ends of the screen 5 wound around the winding shaft 2 between the pair of screen frames 3, first, as can be seen from FIGS. 5 and 7, the screen As shown in FIG. 8A, the above-mentioned pull-out having a V-shaped cross section with respect to the longitudinal end portion of the retaining member 10 located on the attachment end side of the slide bar 4 of 5. It is necessary to connect the shaping material 18 having the form of the stopping posture by adhesion or the like.

Further, the shaping material 18 includes a portion piece 18a connected to the end edge of the mounting portion 11 of the retaining member 10 and a portion piece 18b connected to the end edge of the locking piece 12 of the retaining member 10. Is formed in a V shape, and the portion piece 18a connecting the mounting portion pieces 11 at the V-shaped end edge faces the slit 14 in the guide groove 9 in the screen frame 3 and the end edge is formed. The free end 12a of the locking piece 12 guides the portion 18b connecting the locking pieces 12 from the joint portion 13 between the mounting portion 11 and the locking piece 12 in the guide groove 9 in the screen frame 3. It is necessary to hold the slide bar 4 so as to face the portion of the groove 9 toward the inner edge 14a of the opening of the slit 14.

Even if the shaping material 18 is held by the slide bar 4, the part piece 18a on the side fixed to the mounting part piece 11 in the shaping material 18 is extended to the portion of the slide bar 4. Although it can be fixedly held by the slide bar 4 itself, it is unstable but almost fixedly held while being held by the attachment piece 11 fixed by adhesive or the like. It can also be in a state. However, in any case, if the shaping material 18 extends to the range where it is wound around the winding shaft 2 when the screen 5 is wound, it will hinder the winding of the screen 5, so it is necessary to shorten it. As a result, the shaping material 18 does not have to be elastic. Further, the part piece 18b on the side fixed to the locking piece 12 in the shaping material 18 adjusts the sliding resistance due to contact with the engaging ridge 14b or the like by the length extending toward the slide bar 4 side. Can be done.

The shaping material 18 is basically attached to the longitudinal end of the retaining member 10 as described above, and precedes the introduction of the retaining member 10 into the screen frame 3. The attachment material 18 may be introduced into the guide groove 9 in the screen frame 3 at the start of the tensioning of the screen 5 on the winding shaft 2 from the fully wound state, or the screen 5 may be stretched. At the time of starting, the tip thereof may have already been introduced into the guide groove 9.

FIG. 10 includes a screen frame 33 of substantially the same type as that of the roll screen device of the first embodiment, and an inner rail 6a of the same type as the inner rail 6 of the first embodiment is provided in the screen frame 33. The second embodiment provided is shown. More specifically, the second embodiment will be described in more detail. The inner rail 6a has a slit 14 and an engaging ridge suitable for using the retaining member 20 as described below in the guide groove 19a inside the inner rail 6a. It has a form including 14b, and abuts on the facing surface 19a of the slit 14 in the guide groove 19 with respect to the locking piece 12 of the retaining member 20 inserted in the guide groove, thereby engaging the same. A guide convex surface 19b is provided so as to separate the free end 12a side of the stop piece 12 from the mounting portion piece 11 and press it against the back surface side of the engaging ridge 14b.

The retaining member 20 used in the second embodiment is the same as in the case of the first embodiment described above, the strip-shaped mounting portion piece 11 for fixing one side along the side edge of the screen 5 and the strip-shaped mounting portion 11 thereof. The tip of the mounting piece is provided with a band-shaped locking piece 12 whose connecting end is joined by a narrow joining portion 13, and each of the mounting piece 11 and the locking piece 12 in the retaining member 20 is provided. Also, by connecting the meridian strips 15 in the same manner as in the case of the first embodiment so as to be bendable by the flexible wire strips 16, it is assumed that a large number of the meridian strips 15 arranged in parallel can be wound into a tubular shape. It was formed.

According to the second embodiment as described above, in a state where the retaining member 20 attached to the screen 5 is engaged with the inner rail 6a in the screen frame 33, the facing surface 19a of the slit in the guide groove 19 is engaged. The guide convex surface 19b installed in the above is in contact with the locking piece 12 inserted so as to be overlapped with the mounting piece 11, and the free end side of the locking piece 12 is separated from the mounting piece 11. The free end of the locking piece can be held so as to lock to a portion close to the inner edge of the opening of the slit, thereby referring to FIGS. 5 and 8 (b). It is possible to omit the use of the partially expanded portion piece 17 as described.

1 Winding box 2 Winding shaft 3 Screen frame 4 Slide bar 5 Screen 9 Guide groove 10, 20 Retaining member 11 Mounting piece 11a Tip 12 Locking piece 12a Free end 13 Joint 14 Slit 14a Opening inner edge 14b Engagement convex Strip 15 Warped strip 16 Flexible wire strip 17 Partially expanded piece 18 Forming material

Claims (7)

A screen to be guided by a pair of screen frames extending in parallel from both ends of the take-up box on a take-up shaft rotatably supported in the take-up box is wound from one end thereof and at the other end of the screen. A slidable slide bar is attached to the screen frame, and a retaining member for guiding to a guide groove in the screen frame is attached to the screen along both ends in the winding direction, and the screen frame is attached to the screen frame. In a roll screen device that is inserted into the slit of the guide groove that opens inside the screen so that the retaining member is engaged with the inner edge of the opening of the slit.
The retaining members attached to both ends of the screen are a strip-shaped attachment piece that fixes one side along the side edge of the screen, and a strip-shaped attachment end that is narrowly joined to the tip of the attachment piece. Equipped with a locking piece of
Each of the mounting piece and the locking piece in the retaining member is arranged in parallel in the axial direction of the take-up shaft, and a large number of rigid meridian strips that are elastically maintained in linearity are formed. By flexibly connecting the adjacent meridians with flexible lines, a large number of the above-mentioned parallel meridians are formed as a cylinder that can be wound up.
The engagement of the retaining member with the screen frame in the screen is such that the free end of the locking piece is inserted into the slit in the state where the joint portion between the mounting piece and the locking piece is inserted into the slit. This is done by locking the screen close to the inner edge of the opening, thereby keeping the screen stretched between the screen frames.
A roll screen device characterized by that. In the roll screen apparatus according to claim 1,
The slit for engaging the screen retaining member inside the screen frame is provided inside the inner rail housed in the screen frame, and the slit is opened inside the screen frame.
A roll screen device characterized by that. In the roll screen apparatus according to claim 1 or 2.
Both the mounting piece and the locking piece constituting the retaining member are formed into a woven fabric by knitting and weaving the hard meridians constituting them and the flexible lines connecting the meridians. ,
At the joint with the locking piece along the tip of the mounting piece, it is assumed that the woven-shaped mounting piece and the locking piece are connected by knitting in a manner in which they are in surface contact with each other. As a result, the locking piece in the retaining member is configured to face in the direction along one side of the mounting portion.
A roll screen device characterized by that. In the roll screen apparatus according to claim 3,
When engaging the retaining member in the screen with the screen frame or the inner rail housed in the screen frame,
The free end side of the locking piece is brought into contact with the facing surface of the slit in the guide groove against the locking piece inserted in the guide groove toward the facing surface side so as to be overlapped with the mounting portion piece. A guide convex surface for pressing in a direction away from the mounting piece is provided so that the free end of the locking piece can be held so as to be locked to a portion close to the inner edge of the opening of the slit. Consists,
A roll screen device characterized by that. In the roll screen apparatus according to any one of claims 1 to 4.
An engaging ridge with which the free end of the locking piece in the retaining member engages is provided on the inner edge of the opening inside the slit provided in the screen frame or the inner rail.
A roll screen device characterized by that. In the roll screen apparatus according to claim 5,
In a state where the locking piece does not come into contact with the engaging ridge on the inner edge of the opening of the slit in the guide groove between the mounting piece and the locking piece constituting the retaining member at both side ends of the screen. The V-shaped partially expanded portion pieces that are urged to open elastically until they become elastic and reduce the sliding resistance between the two are discretely arranged in the longitudinal direction of the retaining member.
A roll screen device characterized by that. In the roll screen apparatus according to any one of claims 3 to 6.
At the time of starting the installation from the winding state of the screen by operating the slide bar, the retaining member attached to both ends of the screen is attached to the attachment piece and the locking piece on the attachment end side to the slide bar. A shaping material in a form that can be guided into the guide groove in the screen frame is attached, and the shaping material is attached to a slide bar guided by the screen frame or a mounting piece held in the slit of the guide groove. By holding the screen, the shaping material guides the mounting piece of the retaining member into the guide groove in the screen frame through the slit, and the locking piece is guided into the guide groove in the screen frame when the screen is stretched and started. It is supposed to have a function to lead to the inner edge of the opening of the slit.
A roll screen device characterized by that.

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