The present invention relates to a screen device which can be opened and closed easily, stably, and smoothly effective to be used for screens, curtains, shutters, blinds, net-screen doors, or interior partitioning for the purpose of shielding, sun-shading, insect-proof, and the like of an opening of a building.
In the related art, various screen devices are used for shielding, sun-shading, or insect-proofing of openings, such as windows, or entrances in buildings, such as houses, office buildings and so on.
As typical examples of the screen device as described above, there is a roll screen device in which a screen can be wound around a roller pipe for storage and withdrawn for setting up, and a roll screen device provided with a coil spring mechanism for accumulating a resilient force generated by rotation of a roller pipe to be used for winding the screen for storage is also well known.
The coil spring mechanism facilitates opening and closing, that is, operation of setting up and storage. Therefore, taking advantage of this characteristic, there is proposed a screen device in which a roller pipe can be moved without pivotally supporting the same in order to facilitate assembly and mounting of the device in a compact part configuration.
However, the screen devices described above, which are easy to wind the screen for storage has considerable disadvantages.
In the screen device shown in
In order to overcome this disadvantage, it has been considered to provide a runner which comes into abutment with the lower rail 12 at the lower end of the roller pipe 2. However, it is not easy to provide well-balanced stable slidability equivalent to the runner 7 at the upper end to the runner at the lower end due to the self-weight or deformation of the roller pipe 2, the screen 5, and the slide bar 1.
In addition, in the screen device shown in
In the screen device shown in
In the screen device shown in
Even though the runner is attached to the guides 9, it is extremely difficult to maintain the sliding balance between the right and left sides.
Accordingly, it is an object of the invention in this application to provide a screen device in which the problems in the related art are solved, smooth and stable opening and closing operation is enabled, exploiting characteristics of the screen device having a roller pipe which rotates and slides for achieving winding of a screen for storage by a resilient force, and the influence of wind or contact with human body can be reduced.
The present invention provides a screen device as follows.
[1] A screen device having a pair of slide guide frames and a slide bar expanding and storing the slide guide frames so that screens can be set up and stored by the movement of the slide bar, wherein a roller pipe having a coil spring mechanism for providing a resilient force integrated therein is arranged between the slide guide frames, pivotally supporting bodies are disposed at both ends of the roller pipe so as to be capable of sliding but not to be capable of rotating with respect to the slide guide frames, one ends of two screens are fixed to the roller pipe, and the roller pipe rotates and slides in association with expansion of the slide guide frames or storage thereof into the slide bar in association with the movement of the slide bar to which the other end of one of the screens is fixed, whereby double-action of setting up of the screen by withdrawal of the same from the roller pipe and storage of the screen into the roller pipe by winding of the same on the roller pipe are enabled.
[2] The screen device according to [1], characterized in that a plurality of the roller pipes are arranged between the slide guide frames, the pivotally supporting bodies are arranged at both ends of the respective roller pipes so as to be capable of sliding but not to be capable of rotating with respect to the slide guide frames, and an end of one of the screens is fixed to the adjacent roller pipe.
[3] The screen device according to [1] or [2], characterized in that one end of the screen is fixed to the roller pipe, and the other end is fixed to the fixed frame.
[4] The screen device according to [1] or [2], characterized in that one end of the screen is fixed to the roller pipe, and the other end thereof is fixed to a second slide bar, so that the slide guide frame can be expanded and stored from and into the second slide bar.
[5] The screen device according to any one of [1] to [4], characterized in that the slide guide frame is an elongated member and has a slit or a notch in the direction orthogonal to the longitudinal direction thereof for facilitating flexure.
[6] The screen device according to any one of [1] to [5], characterized in that the slide guide frame includes a retaining engagement sliding member for the pivotally supporting body to be disposed at the end of the roller pipe.
[7] The screen device according to any one of [1] to [6], characterized in that free ends of the pair of slide guide frames are connected by a tensile member which forms a loop in the shape of an infinity sign in the interior of the slide bar.
[8] The screen device according to any one of [1] to [7], characterized in that the screen can be set up and stored in the lateral direction, vertical direction or oblique direction.
In the screen device shown in
Unlike the fixed guide rail 10 in the related art shown in
Since the pivotally supporting bodies 18 at the both ends of the roller pipe 2 are provided so as to be capable of sliding but not to be capable of rotating with respect to the pair of upper and lower slide guide frames 17, the rotation in the normal direction and in the reverse direction of the roller pipe 2 is stabilized, and hence the setting up and storage of the screens 5A, 5B can be achieved smoothly. As shown in
In the screen device shown in
The slide guide frames 17 may be of various structures and configurations as long as they are flexuous enough for enabling withdrawal from the slide bar 1 for expansion and retraction to the slide bar 1 for storage, have linearity for functioning as the guide frames, and have rigidity. They may be formed of various materials, but preferably of light weight materials as much as possible.
As the slide guide frames 17 in this configuration, a combined member of rigid units developed by the applicant of the present invention as shown in
It is a combined member of a plurality of rigid units of the same shape each having a bridge portion 17B located in the middle between side wall portions 17A, and is provided with a stopper mechanism 17C for providing a property which is flexuous in one direction but not in the other direction and retains linearity. The stopper mechanism 17C includes a curved elongated hole and a small projection. In the case of the stopper mechanism 17C shown in
With the side wall portions 17A which extend upright, passage of dust, foreign substances, insects, and the like can be effectively prevented between the screens 5A, 5B at the lower end of the roller pipe 2. A fixed rail 20 may be arranged in recessed portions on the back sides of the bridge portions 17B, so that the slide guide frames 17 are guided by the fixed rail 20. Even though dust, foreign substances, and the like enter the recesses, since the slide guide frames 17 has an opened portion 21 at a bent portion as shown in
The rigid unit may be, for example, a resin molded product, and the plurality of combined members are not bent at positions where the linearity should be retained, and hence the linearity is reliably retained. Such an effect can be achieved not only by the combined member of rigid units as described above, but also by an elongated member having unidirectional bendability, linearity, and rigidity in combination.
In other words, the slide guide frames 17 are an elongated member formed of resin or the like, and have slits 17D or notches which extend orthogonally to the longitudinal direction thereof for facilitating the flexure. As shown in
In the screen device shown in
In any of above-described embodiments of the screen device according to the present invention, with the provision of the flexural slide guide frames 17, flexural resistance serves to attenuate the speed of the roller pipe 2 to wind the screen, so that adequate degree of braking effect is demonstrated. This effect also contributes to the smooth and stable opening and closing operation.
In order to achieve the smooth and stable opening and closing operation, it is also effective to connect free ends of the pair of slide guide frames 17 by a tensile member 22 which forms a loop in the shape of an infinity sign in the interior of the slide bar 1, as shown in
The embodiments shown above are the screen device which is configured to be opened and closed in the lateral direction. However, the screen device according to the present invention may be configured to be opened and closed in the vertical direction as shown in
In the screen device according to the present invention, a tensile force in the winding direction is exerted constantly to the screen. Therefore, the slide bar 1 is constantly urged in the direction of storage. Therefore, in order to expand and set up the screen, employment of a lock means for fixing the position of the slide bar 1 is considered. The lock means may be, for example, a stopper mechanisms provided at the upper and lower ends of the slide bar 1, a locking and engaging mechanism such as a hook between the slide bar 1 and the fixed frame 4, or a magnet attracting member.
Fixation of the screen to the roller pipe 2 or the slide bar 1, or to the fixed frame 3 may be achieved by various known means which is known in the roll screen device in the related art appropriately.
Smooth and stable opening and closing operation of the screen is enabled while exploiting the characteristics of the screen device provided with a roller pipe which rotates and slides to enable winding of a screen for storage by a resilient force generated thereby, and the influence of wind or contact with human body can be restrained.
Number | Date | Country | Kind |
---|---|---|---|
2004-176086 | Jun 2004 | JP | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/JP2005/010990 | 6/9/2005 | WO | 00 | 11/14/2007 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2005/121488 | 12/22/2005 | WO | A |
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Number | Date | Country | |
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20080135189 A1 | Jun 2008 | US |