JP2018003546A - Barrier-free horizontal screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal screen device having a scree guide that suppresses separation of the screen from a bottom rail even when wind and other external forces are exerted, and facilitates restoration when the screen has separated.SOLUTION: A barrier-free screen device has a bottom edge of a screen 7 engaged with and held by a screen guide 12, the screen being opened/closed by a horizontally movable sash bar 6, and the screen guide being guided in/out from a bottom edge of the movable sash bar. The screen guide is configured by connecting many guide pieces 13 guided by a thin plate-form bottom rail 10 having a projecting part 10a projecting from a top part of both side walls. The guide piece includes a pair of hook parts 21, 22 protruding inward from a bottom edge of a pair of hanging walls 15 on both sides of a base part 14. Protruded lengths e, f of the hook parts are various, and include two types of shapes namely A, B having the size variations reversed on right and left. These many hook parts are connected to configure the screen guide.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a barrier-free horizontal screen device for installation in a building opening for the purposes of insect protection, light shielding, heat insulation, dust prevention and the like.

  As disclosed in Patent Document 1, a screen to be wound around a winding shaft is arranged between a side frame of a screen frame and a movable bar that is guided so as to be opened and closed with respect to the side frame. A screen guide that guides the lower end of the screen by being led in and out from the side frame or the lower end of the movable bar along the lower end of the screen that is led into and out of the side frame as the movable bar opens and closes. There is already known a barrier-free horizontal screen device provided with the above. The screen guide is configured to be flexible in a concave direction by connecting a large number of guide pieces, one end of which is fixed to one lower end of the side frame or the movable beam, and the other end is the side frame or the movable beam. Provided with a configuration that curves into and out of the opening provided in the other lower end, and provided along the lower edge of the screen in the engaging groove along the extending direction of the screen provided on the upper surface of the guide piece A large number of engaging members are slidably engaged and held.

  In the guide piece disclosed in FIG. 11 (b) of the above-mentioned Patent Document 1, a concave groove is provided on the lower surface of the guide piece so as to be slidable on the lower rail, and a plurality of guide pieces are connected by the concave groove. The guide is straddled on the lower rail, but if the screen guide is simply straddled on the lower rail, the screen guide may be detached from the lower rail due to wind or other external force acting on the screen. On the other hand, as shown in (c) of the figure, when a pair of flanges are formed on the lower surface of the guide piece from the opening edge of the concave groove to the inside, it is provided from the upper part of both side walls of the lower rail toward the outside. The hook portion engages with the overhanging portion, so that the screen guide is prevented from being detached from the lower rail, and the screen guide is more reliably guided to the lower rail. However, in this case, there is a problem that the screen and the guide piece are damaged when a large external force by an infant or a pet acts on the screen.

  As a means for avoiding such breakage of the screen or guide piece, as shown in FIG. 8A, the lower rail 40 protrudes outwardly from the upper part of both side walls of the belt-like thin plate. On the other hand, the guide piece 43 is a concave groove slidably straddling on the lower rail 40 by a pair of hanging walls 45 provided on both sides of the lower surface of the base portion 44 guided by the lower rail 40. 46 and a pair of flanges 50 projecting inwardly from the lower ends of the two hanging walls 45, but the width between the inner ends of the flanges 50 is set to be a protruding portion of the lower rail 40. Although the guide piece 43 is formed so as to be wider than the length between the tips of 41 and is detachable from the lower rail 40, it is caused by the action of an external force W caused by wind or the like on the screen surface S as shown in FIG. Guide piece 43 moves in the direction of arrow P When this is done, the hook 50 should be locked to the overhanging portion 41 of the lower rail 40 (see Japanese Patent Application No. 2015-114232). In addition, the above-mentioned damage problem can be avoided.

  However, in the screen guide using the guide piece 43 as shown in FIG. 8A described above, when a relatively small external force such as wind gives a relatively slow movement to the screen, the guide piece 43 moves to the side. In this case, the collar portion 50 of the guide piece 43 is locked to the overhanging portion 41 of the lower rail 40. For example, a sudden strong wind blows or a large movement is suddenly applied to the screen 7 by infants or pets. In some cases, as shown in FIG. 8B, the upward force indicated by the arrow U acts before the collar portion 50 of the guide piece 43 is deeply locked to the overhanging portion 41 of the lower rail 40, and is pulled upward. The guide piece 43 of the screen guide whose locking to the lower rail is unstable can be easily detached from the lower rail 40. Therefore, depending on the installation environment of the building opening where the screen device is installed. Te is the screen guide which is connected to the guide piece 43 as shown in (a) of FIG 8, not necessarily a stably guided beneath rail 40.

JP 2004-346578 A

  A technical problem of the present invention is that a barrier-free type is provided that includes a screen that can be opened and closed horizontally by a movable bar in a screen frame, and that guides the lower end of the screen that is led in and out by the movable bar by a screen guide. The screen guide does not detach from the lower rail when a strong wind blows suddenly or a large movement is suddenly applied to the screen by infants or pets. It is an object of the present invention to provide a horizontal screen device that enables the screen guide to be detached from the lower rail when the upward pulling force becomes larger, thereby avoiding damage to the screen and guide pieces.

  In order to solve the above-described problem, according to the present invention, a screen that can be expanded and contracted is installed between a side frame of the screen frame and a movable frame that can be opened and closed with respect to the side frame. Along with the lower end of the screen led out to and from the side frame in accordance with the opening and closing movement, the movable bar moves to and from the lower end of the side frame or the movable bar to guide the lower end of the screen. A screen guide is provided, and the screen guide is configured to be flexible in a concave direction by connecting a number of guide pieces, one end of which is fixed to the lower end of one of the side frame and the movable bar, and the other end The opening of the other side of the side frame and the movable bar is configured to be curved into and out of the opening, and the engagement groove along the extending direction of the screen provided on the upper surface of the guide piece is provided in the engagement groove of the screen. Along the bottom edge In a barrier-free horizontal screen device that slidably engages and holds a large number of engaging members provided on the bottom of the screen, it is installed on the lower side of the screen frame and guides the introduction and removal of the screen guide. The rail has a fixed cross-sectional shape having an overhanging portion projecting outward at the upper part of both side walls, and the guide piece is a pair of hanging walls provided on both sides of the lower surface of the base part guided by the lower rail. Thus, a downward concave groove is formed that slidably straddles the lower rail, and a pair of flanges protruding inward from the lower ends of the both hanging walls are passed through the gap between the tips of the lower rail. Both side overhangs are formed so that they can pass through, and the guide piece has at least a difference in the protruding lengths of both flanges inward from the hanging walls on both sides of the concave groove, One of the two types of the projections of the flanges being reversed in the left and right directions, and the screen guide is provided on one side of the screen guides in the two types of connected guide pieces. The protrusion length of the collar portion is formed to be different for one to several guide piece holders, so that the tip end portion of the collar portion having a large projection length in the guide piece is always A barrier that is configured to protrude below the overhanging portions on both sides of the lower rail, and so that the distal end portion of the flange portion having a small protruding length does not reach under the overhanging portion of the lower rail. A free-type horizontal screen device is provided.

  In the horizontal screen device having the above-described configuration, in the screen guide in which a large number of guide pieces are connected, the flange on one side of the connected guide pieces is connected to one to several guide pieces with different projecting lengths. As a result, the leading end portion of the flange portion having a large protruding length in the guide piece is normally protruded from the left and right alternately to the lower side of the protruding portion of the lower rail, so that a strong wind is suddenly applied to the screen. Even if it is sprayed or suddenly a large movement is applied to the screen by infants or pets, and the guide piece is pulled upward before moving to the side relative to the lower rail, the protruding length is large Since the leading end of the hook is locked to the lower side of the protruding portion of the lower rail every one or several guide pieces, the upward movement of the guide piece is temporarily suppressed, and the lower end of the screen It is maintained while being held on.

  However, the leading end of the flange with the large protrusion length does not stably engage with the lower side of the overhanging portion of the lower rail, and the gap between the leading ends of the flanges of the guide piece passes through both sides of the lower rail. The overhang has a width that allows the overhang to pass, and the tip of the underhang that faces the overhang of the long overhang is not always locked to the overhang of the lower rail. Since the piece itself can be shifted laterally with respect to the lower rail, if the force acting on the screen becomes larger, the lock on the lower rail of the guide piece is released and pulled up, and the screen and guide piece Damage is prevented. In addition, the screen guide can be easily re-engaged with the lower rail. Of course, when a relatively slow movement is given to the screen by an external force such as wind, the lower end of the screen is stably guided by the screen guide.

  In a preferred embodiment of the horizontal screen device according to the present invention, the lower surface of the overhanging portion protruding from the upper part of both side walls of the lower rail installed on the lower side of the screen frame is extended from the proximal end side to the distal end side of the overhanging portion. The upper surface of the flange portion having a large protruding length that protrudes inward from the lower end of the hanging wall of the two types of guide pieces is formed as an inclined surface inclined obliquely upward toward the The inclined surface of the guide piece is inclined with respect to the inclined surface of the lower rail when moving along the lower rail of the screen guide by the operation of the movable rail. The pressing force received by contact with the surface is configured to have a component force that pushes the flange of the guide piece to the side of the lower rail.

  In the screen guide having such a configuration, before a strong wind is blown against the screen suddenly or a large movement is suddenly applied to the screen by infants or pets, the guide piece is moved sideways with respect to the lower rail. Even if a force that pulls upward is applied to the upper end of the lower rail, the leading end of the flange portion having a large protruding length is locked to the lower side of the protruding portion of the lower rail every one to several guide pieces. The guide piece is prevented from moving upward and the lower end of the screen guide is held by the lower rail, but the lower surface of the overhanging portion of the lower rail is an inclined surface inclined obliquely upward from the proximal end side to the distal end side. Also, since the flange part with the large protrusion length of the guide piece that contacts the inclined surface is an inclined surface that contacts the inclined surface of the lower rail, when the flange part of the guide piece comes into contact with the lower rail In addition, Easily pushed laterally by the pressing force Id piece receives from the lower rail, whereby if the contact force of the both inclined surfaces is greater guide piece is disengaged from the lower rail, damage of the screen and guide piece can be more reliably suppressed.

  Moreover, in other preferable embodiment of the said horizontal screen apparatus which concerns on this invention, the protrusion length of the collar part provided in the both sides of the lower end of a pair of said hanging wall in the guide piece of forms other than said 2 types is set. In order to prevent the screen guide from engaging the lower rail more than necessary, it is mixed in the two types of guide pieces. Is done.

  In another preferred embodiment of the horizontal screen device according to the present invention, the screen guide is constituted only by the two types of guide pieces, and the flanges on one side of the adjacent guide pieces are alternately small and large. Alternatively, the guide pieces of the above two types are alternately and discretely connected to a plurality of guide pieces of a form other than the above two types.

  Further, in another preferred embodiment of the above-described horizontal screen device according to the present invention, the screen is wound around a winding shaft spring-biased in the winding direction between the side frame of the screen frame and the movable bar. The screen is installed by supporting the winding shaft on one of the side frame and the movable bar and supporting the tip of the screen led out from the winding shaft on the other.

  According to the barrier-free horizontal screen device of the present invention described in detail above, in the existing barrier-free horizontal screen device, when a relatively slow movement is given to the screen by an external force such as wind, the screen The lower end of the screen is stably guided by the screen guide. Of course, the screen guide is released from the lower rail when a strong wind blows suddenly or when a large movement is suddenly applied to the screen by an infant or pet. In addition, when the force with which the screen guide is pulled upward is increased, the screen guide is detached from the lower rail, and damage to the screen and the guide piece can be avoided.

It is a front view which shows the Example of the barrier free type | mold horizontal pulling screen apparatus which concerns on this invention. It is a principal part expansion perspective view of the screen guide used in the horizontal drawing screen apparatus which concerns on this invention. (A) And (b) is a front view which shows the structure of two types of guide pieces which comprise the screen guide used in the screen apparatus which concerns on this invention in relation to a lower rail, respectively. FIG. 4 is a right sectional view of the guide piece shown in FIG. It is explanatory drawing which shows the positional relationship between each part in the cross section of a lower rail, and each part of the collar part in the guide piece of (a) and (b) of FIG. 3 in the state in which a guide piece is guided to a lower rail. It is a typical block diagram which shows the example of an arrangement | sequence of the guide piece of (a) and (b) of FIG. 3 in an example of the screen guide used in the screen apparatus of this invention. It is a block diagram which shows the example of arrangement | positioning of the guide piece different from FIG. 6 of the screen guide used in the screen apparatus of this invention. (A) is a front view which shows the structure of the guide piece of the screen guide in the developed screen apparatus in relation to a lower rail, (b) is operation | movement explanatory drawing of the screen guide using the guide piece.

  1 to 7 show an embodiment of a barrier-free horizontal screen device according to the present invention. This horizontal screen device is installed as a barrier-free type in the building opening 1 for insectproofing, light shielding, heat insulation, dustproofing, etc. As shown in FIG. 1, the screen accommodated in the building opening 1 The frame 2 is constituted by a pair of side frames 3 and 4 and an upper frame 5 that interconnects the upper portions of the side frames 3 and 4, and one side frame 3 in the screen frame 2 is wound around the screen 7. The other side frame 4 is in contact with the movable bar 6 attached to the tip of the screen 7 wound around the winding shaft 8 when the screen 7 is extended. It is configured as a receiving frame. The screen 7 stretched between the side frame 3 and the movable beam 6 is wound around the winding shaft 8 in the side frame 3, and its tip is attached to the movable beam 6 to be wound up. The spring 9 accommodated in the shaft 8 is spring-biased in the winding direction to the winding shaft 8 and is installed so as to be able to expand and contract. The take-up shaft 8 can be accommodated and the tip of the screen 7 can be fixed to the side frame 3.

  In the above screen device, as the horizontal pulling movable bar 6 guided by the screen frame 2 opens and closes, the screen 7 wound around the winding shaft 8 of the side frame 3 is led out and inserted at the same time. A screen guide 12 is provided that guides the lower end of the screen 7 from the lower end of the movable bar 6 along the lower end of the screen 7 that is led out. As shown in FIGS. 1 and 2, the screen guide 12 is configured to be flexible in a direction of being recessed upward by connecting a large number of guide pieces 13. One end of the screen guide 12 is fixed to the lower end of one of the side frame 3 and the movable bar 6, and the other end is curved inward from an opening provided at the lower end of the other of the side frame 3 and the movable bar 6. In FIG. 1, one end is fixed to the lower end of the side frame 3, and the other end can be moved into and out of the opening 6 a provided at the lower end of the movable bar 6 in FIG. 1. An example is shown.

  In the screen device, the screen guide 12 corresponding to the original lower frame is led out only to the extending range of the screen 7 along the lower rail 10 which is originally installed at the position where the lower frame of the screen frame 2 should be provided. The original lower frame does not exist where the screen 7 is not derived, and the portion is made barrier-free. Therefore, instead of the original lower frame provided on the lower side of the screen frame 2, a thin plate-like lower rail 10 for guiding the lead-in / out of the screen guide 12 is provided. The lower rail 10 is a long rail having a fixed cross-sectional shape having an overhanging portion 10a projecting outward on both side wall upper portions, and the thickness thereof is an unevenness for guiding a fitting provided on the original sill. It does not become obstacles such as walking. The movable bar 6 is guided by the lower rail 10 and the upper frame 5 to open and close the upper and lower ends.

  The configuration of the screen guide 12 will be described in more detail with reference to FIGS. 1 to 4. The main guide pieces 13 constituting the screen guide 12 are shown in FIGS. 3 (a) and 3 (b). There are two types, but these are basically provided with a pair of hanging walls 15 on both sides of the lower surface of the base portion 14 guided by the lower rail 10, thereby sliding on the lower rail 10. A downward concave groove 16 is formed so as to be freely straddled, and the screen guide 12 connected with a large number of guide pieces 13 is straddled on the lower rail 10 by the concave groove 16 so that it can be guided.

  A large number of connections of the guide pieces 13 are inserted between the base part 14 and the screen holding part 20 provided on the base part 14 along the upper surface of the base part 14 in the direction along the lower rail 10. 17 is formed, a long connecting strip 18 made of an elastic and flexible synthetic resin sheet is inserted into the insertion passage 17, and the guide pieces 13 at both ends are fixed to the connecting strip. . It is effective to connect the guide piece 13 by inserting the connecting strip 18 through the insertion passage 17 positioned on the base part 14 connected to each other so that the screen guide 12 can be bent concavely only upward. It is a thing.

  Further, on the upper surface of the screen holding part 20 supported by the upright wall 20a extending upward on both sides of the base part 14 in the guide piece 13, an engaging groove 20b is provided along the extending direction of the screen 7, and adjacent thereto. A large number of engaging members 7a (see FIG. 1) provided along the lower edge of the screen 7 are slidably engaged and held in the engaging grooves 20b communicating with the large number of guide pieces 13. A number of engaging members 7 b provided along the upper edge of the screen 7 are slidably engaged with and held on a linear inner rail 5 a provided in the upper frame 5. Further, the guide piece 13 has a connecting convex portion 14a for stabilizing the connection with the adjacent guide piece 13 on one end side in the direction along the lower rail 10 of the base portion 14, and on the other end side. Connection concave portions 14b into which the connection convex portions 14a of adjacent guide pieces are inserted are provided, and formed so as to suppress as much as possible the convex curve on the screen guide 12 formed by the connection of the guide pieces 13. Yes.

  The screen guide 12 configured by connecting the guide pieces 13 has the above-described configuration. The specific configuration of the guide pieces 13 constituting the screen guide 12 is described with reference to FIGS. There are at least three forms as described below. These forms are the third form including the two forms shown in FIGS. 3A and 3B having the characteristic configuration of the present invention and the form shown in FIG. 8 and known forms. In the screen guide 12, the two types of guide pieces shown in FIGS. 3A and 3B and the guide piece of the third form are mixed in the manner described later, if necessary. .

  4 shows the right cross section of the guide piece 13 shown in FIG. 3 (a), the form of FIG. 4 drawn on the left and right sides of the guide piece 13 shown in FIG. 3 (b) is shown. It becomes a left side sectional view, and therefore both guide pieces 13 have a symmetrical form. Therefore, in the following description, the configuration shown in FIG. 3A is referred to as a guide piece A, and the configuration shown in FIG.

  With reference to FIGS. 3A and 3B and FIG. 4, the structure of the two types of guide pieces A and B will be described in more detail. First, the two types of guide pieces A and B will be described. Of course, the guide pieces A and B have a pair of hanging walls provided on both sides of the lower surface of the base portion 14 in addition to the basic structure. A pair of flanges 21 and 22 projecting inward from the lower end of 15 is formed so that the distance between the ends (length d) of the both side protruding portions 10a of the lower rail 10 can pass through the gap c between the ends. In addition, the projecting lengths e and f of the flange portions 21 and 22 from the both hanging walls 15 to the inside are provided with a difference in size. Although the guide pieces A and B have the same structure, they are symmetrical with each other as described above.

  In addition, in the guide pieces A and B shown in FIG. 3, the length g at which the tip of the flange portion 21 protrudes under the overhanging portion 10 a of the lower rail 10 is set by the protruding length e of the flange portion 21. Further, the length h at which the tip of the flange 22 is separated from the overhanging portion 10a of the lower rail 10 is set by the protruding length f of the flange 22, but these lengths g and h are defined in the present invention. As long as the gist of the present invention is not impaired, an appropriate value can be set according to the use conditions of the screen device.

  Further, FIG. 5 shows each part in the cross section of the lower rail 10 and the guide pieces shown in FIGS. 3A and 3B in a state where the guide pieces A and B are guided with the center position aligned with the lower rail 10. FIG. 5 shows the positional relationship between the A and B flanges 21 and 22, and the lower cross section of the guide piece A is shown at the uppermost position in FIG. Shows a cross section of the lower rail 10.

  In the screen guide 12, a large number of guide pieces 13 are connected by inserting a long connecting strip 18 through an insertion passage 17 passing therethrough. Therefore, as shown in FIG. 10, that is, a large number of guide pieces A and B are linearly connected by the connecting strip 18 and are straddling the lower rail 10. In this state, the guide piece A , B are in a state in which the distal end portion of the flange portion 21 having a large protruding length protrudes under the overhanging portion 10a on both sides of the lower rail 10, while the opposite protruding portion 22 of the opposite protrusion portion 22 has a small protruding length. The tip portion is in a state where it does not reach below the overhanging portion 10 a of the lower rail 10. Therefore, in the screen guide 12 to which a large number of guide pieces A and B are connected, the leading end portion of the flange portion 21 having a large protruding length in the guide pieces A and B is extended from the left and right sides of the lower rail 10. It is inserted even under 10a, and the hook is slidably engaged with the lower rail in a state of gripping the lower rail 10.

  When one guide piece 13 is removed from the lower rail 10, since the collar portion 21 is inserted even under the overhanging portion 10 a, the guide piece 13 is usually removed with an inclination. Therefore, as described above, the length d between the front ends of the both-side protruding portions 10a of the lower rail 10 can pass through the gap c between the front ends of the flange portions 21 and 22, which means c> d. Not what you want. That is, for example, in FIG. 3A, when the screen guide 12 is pulled upward before the flange portion 21 having a large protruding length of the guide piece A is deeply locked to the protruding portion 10a of the lower rail 10, If the connection between the guide piece A and its adjacent guide piece is not very strong, the guide piece A itself is tilted, and the flange 22 having a small protruding length is detached from the lower rail 10, and accordingly. Further, since the hook portion 21 having a large protruding length also becomes unstable to the lower rail 10 and is detached from the lower rail 10, the guide piece A is separated even if c> d is not satisfied. become. The same applies to the guide piece B in FIG.

  As described above, the flange portions 21 and 22 of the guide pieces A and B can be configured simply by giving a difference in size to the protruding length from the lower end of the hanging wall 15. As shown in (a) and (b), the inclined surface in which the lower surface of the overhanging portion 10a protruding from the upper part of both side walls of the lower rail 10 is inclined obliquely upward from the base end side to the distal end side of the overhanging portion. 10b, and the upper side surface of the flange portion 21 with the large protruding length of the guide pieces A and B is inclined in a direction in contact with the inclined surface 10b formed on the lower surface of the protruding portion 10a of the lower rail 10. It can also be configured as an inclined surface 21a.

  In this configuration, when the screen guide 12 is moved along the lower rail 10 by the operation of the movable rail 6, the inclined surface 21a of the flange portion 21 of the guide pieces A and B contacts and receives the inclined surface 10b of the lower rail. This is to give the pressing force a component force that pushes the side of the lower rail 10 against the flange 21 of the guide piece. When the inclined surface 10b and the inclined surface 21a are in strong contact, the flange of the guide piece The possibility that the tip of 21 is detached from the overhanging portion 10a of the lower rail 10 becomes very large.

  Further, the third guide piece 13 having a form other than the above two types (in the following description, this form is referred to as a guide piece C) is provided with the basic structure of the guide piece 13 described above. The protruding length of the collar provided at the lower ends of the pair of hanging walls 15 is equal to or shorter than the smaller protruding length of the guide pieces A and B of the above two types, Those having a protrusion length of 0 are also included. As a result, when they are incorporated in the guide piece 13 of the screen guide 12, they do not exhibit special functions like the guide pieces A and B. Rather, when the guide pieces A and B follow the movement of the guide pieces A and B, or when the guide pieces A and B suddenly have a strong wind and suddenly a large movement is applied to the screen 7, ( b) in a manner as shown in FIG. This action and the action of the guide pieces A and B are combined with the guide pieces A and B so as to be adapted to the installation environment of the screen device as much as possible. .

Next, with reference to FIG. 6 and FIG. 7 and the like, a manner of connecting the guide pieces A, B, and C in the screen guide 12 will be described.
In general, the screen guide 12 has an arrangement in which the protruding lengths of the flange portions 21 and 22 on one side of the two types of guide pieces A and B connected to each other are 1 to 2. The guide pieces A and B are formed so as to be different from each other for several guide pieces 13, and the protruding lengths of the flange portions 21 and 22 are symmetrical in shape. Of course, the protruding lengths of the flanges 21 and 22 on the other side of the screen guide 12 are also formed to be different for one to several guide pieces 13. And the said guide piece C will be connected so that it may disperse | distribute and disperse | distribute between the two types of guide pieces A and B connected as above-mentioned as needed.

  FIG. 6 exemplifies a connection mode using only the guide pieces A and B in the screen guide 12. The flanges 21 and 22 on one side of the adjacent guide pieces 13 are alternately projected with different sizes. It has a length, that is, guide pieces A and B are alternately connected. In this case, it is considered that the possibility that the screen guide 12 is detached from the lower rail 10 due to wind or other external force acting on the screen 7 is relatively small. However, the protruding length of the flange portion 21 should be adjusted. Thus, the degree of separation of the screen guide 12 from the lower rail 10 can be appropriately adjusted.

  FIG. 7 shows an example of connecting guide pieces when a large number of the guide pieces C are used so that the number of the guide pieces A and B of the two types in the screen guide 12 is relatively small. The guide pieces A and B of the above two types are alternately and discretely connected to a plurality of the guide pieces C. The number of guide pieces C connected between the guide pieces A and B can be adjusted according to how the screen guide 12 is detached from the lower rail 10 according to the installation environment of the screen device. .

  As described above, the screen guide 12 is configured by linearly connecting a large number of the guide pieces A, B and the like to the insertion passage 17 on the base portion 14 by inserting the flexible connecting strip 18. Then, it is explained that it is straddled on the lower rail 10, and further, a connecting convex portion 14a is provided on one end side in the direction along the lower rail 10 of the base portion 14, and the guide piece 13 adjacent thereto is provided. The connection recess 14b is inserted into the connection recess 14b to stabilize the connection. On the other hand, the protruding portion of the lower rail 10 is connected to the end of the flange portion 21 having a large protruding length in the guide pieces A and B. Since it is inserted under 10a, in order for it to detach | leave from the overhang | projection part 10a of the lower rail 10, it is necessary to give the said screen guide 12 a certain amount of flexibility. Therefore, how much the adjacent guide piece can be tilted or laterally moved depending on the material constituting the connecting strip 18, the shape of the insertion passage 17 in the guide piece, the clearance at the time of inserting the connecting passage 18 into the insertion passage 17, etc. It is necessary to consider what to do.

2 Screen frame 3, 4 Side frame 6 Movable bar 7 Screen 7 a Engaging member 10 Lower rail 10 a Overhang part 12 Screen guide 13 Guide piece 14 Base part 15 Drooping wall 16 Groove 21, 22 Ridge part

Claims (6)

A screen that can be expanded and contracted is installed between the side frame of the screen frame and a movable frame that can be opened and closed with respect to the side frame, and it is led into and out of the side frame as the movable frame opens and closes. A screen guide that guides the lower end of the screen is provided by being led out from the side frame or the lower end of the movable rail by the movement of the movable rail along the lower end of the screen. It is configured to be flexible in the direction of concave upward by connecting the guide pieces, one end of which is fixed to the lower end of one of the side frame and the movable beam, and the other end is provided to the lower end of the other of the side frame and the movable beam. A plurality of engaging members provided along the lower edge of the screen in the engaging groove along the extending direction of the screen provided on the upper surface of the guide piece. Sliding engagement In Accessible type crosscut screen apparatus that is lifting,
A thin plate-like lower rail that is installed on the lower side of the screen frame and guides the introduction and removal of the screen guide, and has a constant cross-sectional shape having a protruding portion that protrudes outward on the upper part of both side walls,
The guide piece is formed by a pair of hanging walls provided on both sides of the lower surface of the base portion guided by the lower rail, so as to form a downward concave groove slidably on the lower rail, and the both hanging walls A pair of flanges projecting inwardly from the lower end of the lower end of the lower rail so that both side projecting portions of the lower rail can pass through a gap between their tips, and the guide piece is at least on both sides of the recessed groove Including two types of configurations in which the protruding lengths of both flanges from the hanging wall to the inside are different in size, and the protruding lengths of the flanges are reversed on the left and right ,
The screen guide is formed so that the projection length of the flange on one side of the screen guides of the two types of connected guide pieces is different for one to several guide pieces. ,
As a result, the leading end of the flange portion with a large protruding length of the guide piece always enters under the overhanging portion on both sides of the lower rail, and the leading end portion of the flange portion with a small protruding length is It is configured not to reach under the rail overhang,
A barrier-free horizontal pulling screen device. The lower surface of the overhanging portion protruding from the upper part of both side walls of the lower rail installed on the lower side of the screen frame is an inclined surface inclined obliquely upward from the proximal end side to the distal end side of the overhanging portion,
On the other hand, the direction in which the upper side surface of the flange portion having a large protruding length that protrudes inward from the lower end of the hanging wall in the two types of guide pieces is in contact with the inclined surface formed on the lower surface of the protruding portion of the lower rail And an inclined surface inclined to
When moving along the lower rail of the screen guide by the operation of the movable bar, the pressing force received by the inclined surface of the flange of the guide piece contacting the inclined surface of the lower rail causes the flange of the guide piece to move laterally of the lower rail. Have the force to push into,
The barrier-free horizontal screen device according to claim 1. The protrusion length of the collar part provided on both sides of the lower ends of the pair of hanging walls in the guide pieces other than the two types is the same as or shorter than the protrusion length of the smaller one of the two types of guide pieces. is there,
The barrier-free horizontal screen device according to claim 1 or 2. The screen guide is composed of only the above two types of guide pieces, and the flanges on one side of the adjacent guide pieces alternately have different projecting lengths.
The barrier-free horizontal screen device according to claim 1 or 2. The screen guide is configured by alternately and discretely connecting the two kinds of guide pieces to a plurality of guide pieces of the forms other than the two kinds.
The barrier-free horizontal screen device according to any one of claims 1 to 3. A screen wound around a winding shaft spring-biased in the winding direction between the side frame of the screen frame and the movable beam, the winding shaft is placed on one of the side frame and the movable beam, and the other Is installed by supporting the tip of the screen led out from the winding shaft,
The barrier-free horizontal screen device according to any one of claims 1 to 5.

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