JP2019044357A - Rolling screen - Google Patents

Abstract

To provide a rolling screen capable of suppressing light leakage below a mounting frame without providing a gap preventing member.SOLUTION: A rolling screen 1 of the present invention includes: winding units 3, 3A for winding or unwinding a screen 4; a frame body (mounting frame 2) supporting the winding units 3, 3A via support members 2a, 2b; and a movable mechanism capable of moving the winding units 3, 3A in a direction of the frame body and suppressing external light incident from below the frame body. The movable mechanism is configured to movably support a rotary shaft 31 of the winding unit 3 in a slidable manner relative to slide grooves 20 provided in the support members 2a, 2b, or is configured to movably support the winding unit 3A, which has the rotary shaft 31 for supporting two-shaft type winding pipes 36, 37 arranged in parallel in an interlocking manner, rotatably about the rotary shaft 31. Further, the movable mechanism is configured to be capable of automatically or manually shielding external light incident from below the frame body.SELECTED DRAWING: Figure 1

Description

The present invention relates to a roll screen.

  The roll screen supports the take-up portion via a support member (side bracket) by a mounting frame attached via a bracket to a mounting surface such as a ceiling surface or a wall surface, and takes up the upper edge of the screen It is configured to be attached to a part and hung down, and by taking up or rewinding the screen by the winding part, it is possible to adjust the amount of light taken into the room.

  In a general roll screen, support members (side brackets) are fixed to both ends of the mounting frame, and a cylindrical winding portion is rotatably supported between the left and right support members.

  By the way, in order to prevent the clearance gap between a mounting frame and a winding-up part, the roll screen comprised so that a clearance gap prevention member may be arrange | positioned is disclosed (for example, refer patent document 1).

Japanese Utility Model Publication No. 4-48316

  As described above, Patent Document 1 discloses a roll screen in which a gap preventing member is disposed to prevent a gap between the mounting frame and the winding portion.

  However, the gap preventing member disclosed in Patent Document 1 is always required for the mounting frame, and when the length in the left-right direction of the mounting frame is changed, the length in the left-right direction of the winding portion is also changed. Along with this, it is necessary to prepare a gap prevention member having a length equal to that. Therefore, there is a problem in that it is difficult to make the gap preventing member versatile, and there is a problem in the management burden and cost of the gap preventing member for each shielding device.

  For this reason, without providing a gap preventing member, a technique is desired that can prevent a gap below the mounting frame to suppress light leakage.

  An object of the present invention is, in view of the above-mentioned problems, to provide a roll screen which can suppress light leakage under the mounting frame without providing a gap preventing member.

  The roll screen of the present invention is a roll screen for raising and lowering the screen, and a winding unit that winds up or unwinds the screen, a frame that supports the winding unit via a support member, and the winding. A movable mechanism configured to move a portion in the direction of the frame and suppress external light incident from below the frame.

  Further, in the roll screen of the present invention, the movable mechanism is configured to be capable of shielding external light incident from below the frame.

  Further, in the roll screen of the present invention, the movable mechanism is configured to movably support the rotation shaft of the winding unit with respect to a slide groove provided in the support member. .

  Further, in the roll screen of the present invention, the winding unit has a rotary shaft that supports two coaxially arranged winding pipes in an interlockable manner, and the movable mechanism is a rotary shaft of the winding unit. The winding unit is configured to be movably supported in the direction of the frame with respect to the support member with the shaft as an axis.

  Further, in the roll screen of the present invention, the movable mechanism is characterized by including urging means for urging the winding portion to be automatically moved in the direction of the frame.

  Further, in the roll screen of the present invention, the movable mechanism manually moves the winding unit toward the frame, and manually switches whether or not external light incident from below the frame is shielded. It is characterized in that it comprises a lock member which makes it possible.

  According to the present invention, it is possible to configure a roll screen capable of suppressing light leakage under the mounting frame, such as reducing unwanted external light, preferably completely shielding light, without providing a gap preventing member. it can.

It is a front view which shows schematic structure of the roll screen of 1st Embodiment by this invention. It is a partial perspective view in a roll screen of a 1st embodiment by the present invention. (A), (b), (c) is a side view which shows the operation | movement in the roll screen of 1st Embodiment by this invention, respectively. It is a perspective view which shows schematic structure of the roll screen of 2nd Embodiment by this invention. (A), (b) is front sectional drawing which shows the schematic structure of the winding part in the roll screen of 2nd Embodiment by this invention, respectively, and its side sectional drawing. (A), (b), (c) is a side view which shows the operation | movement in the roll screen of 2nd Embodiment by this invention, respectively. (A), (b), (c) is a side view which shows the operation | movement in the roll screen of the modification by this invention, respectively. It is a partial perspective view in a roll screen of a 3rd embodiment by the present invention. (A), (b) is a side view which shows the clearance gap operation by manual control in the roll screen of 3rd Embodiment by this invention, respectively.

  Hereinafter, the roll screen 1 of each embodiment according to the present invention will be described with reference to the drawings. In the specification of the present invention, with respect to the front view of the roll screen 1 shown in FIG. 1, the upper side and the lower side of the drawing are respectively upward (or upper) and downward (or lower) according to the hanging direction of the screen 4 The left direction of the drawing is defined as the left side of the roll screen 1, and the right direction of the drawing is defined as the right side of the roll screen 1. Further, in the example described below, with respect to the front view of the roll screen 1 shown in FIG. 1, the side to be viewed is the front side (or the indoor side), and the opposite side is the rear side (or the outdoor side).

First Embodiment
First, with reference to FIG. 1, the structure of the roll screen 1 of 1st Embodiment by this invention is demonstrated. FIG. 1 is a front view showing a schematic configuration of a roll screen 1 according to a first embodiment of the present invention.

  In the roll screen 1 shown in FIG. 1, support members 2a and 2b are fixed to both ends of the mounting frame 2, and the cylindrical winding portion 3 is rotatably supported between the support members 2a and 2b. The mounting frame 2 is fixed to a mounting surface of a ceiling surface or a wall surface by a bracket 6.

  The winding unit 3 suspends and supports the screen 4 by attaching one end of the screen 4 so as to wind up or rewind the screen 4. The other end of the screen 4 is attached to a weight bar 5 which functions as a weight member. Therefore, the screen 4 is stretched based on the weight of the weight bar 5. In the example of the present embodiment, the screen 4 is suspended from the outdoor side of the winding unit 3. However, the screen 4 may be suspended from the indoor side of the winding unit 3.

  Then, a pull grip 7 to which a pull cord is attached is provided at a substantially central portion in the left-right direction of the weight bar 5. Further, in the winding unit 3, a spring motor for automatically winding up the screen 4 is accommodated at the left end side thereof, and a stopper device for preventing lowering of the weight of the screen 4 is accommodated at the right end side (not shown).

  In the present embodiment, the weight bar 5 can be lowered by rotating the winding unit 3 in the screen rewinding direction by the pull operation of the pull grip 7, and the locking of the stopper device is activated when the pull grip 7 is released. . Therefore, the weight bar 5 can be positioned at a desired position. In addition, with a slight pulling operation of the pull grip 7, the lock of the stopper device can be released, and the spring motor can be operated to perform automatic winding of the screen 4, and the winding unit 3 is rotated in the screen winding direction. The weight bar 5 can be raised to the upper limit position.

(Automatic shielding type winding unit)
Here, in the roll screen 1 shown in FIG. 1, the cylindrical winding portion 3 is not only rotatably supported between the support members 2a and 2b, but also slidably supported in the vertical direction.

  More specifically, as shown in FIG. 2, the support member 2a is provided with a slide groove 20, and the rotary shaft 31 of the winding unit 3 is rotatably and slidably supported in the slide groove 20. . A support ring 9 is provided on a rotary shaft 31 projecting outward from the slide groove 20, and the rotary shaft 31 can be rotated relative to the support ring 9. The support ring 9 is located between the retaining member 10 provided on the rotary shaft 31 and the support member 2 a so that the support ring 9 does not come off the rotary shaft 31.

  One end of a spring 8 is engaged with a support hole 9a provided in the support ring 9, and the other end of the spring 8 is engaged with a fastening portion 22 provided in the support member 2a. In the illustrated example, the spring 8 is constituted by a tension spring and functions as a biasing means that generates a biasing force that causes the support ring 9 to always move upward. In addition, in this example, although the example comprised with the spring 8 by the tension spring and the holding part 22 in order to produce the urging | biasing force which moves the supporting ring 9 upwards always, always supporting using a compression spring is carried out. It may be a structure that generates a biasing force that moves the ring 9 upward.

  And as shown in FIG. 1, the supporting member 2b is also configured in the same manner as the supporting member 2a shown in FIG.

  The roll screen 1 shown in FIG. 1 configured as described above always generates an urging force for moving the support ring 9 upward by the urging force of the spring 8, and the winding portion supported by the support ring 9 The three rotary shafts 31 act to move upward along the slide groove 20 at all times.

  Therefore, as shown in FIG. 3A, in the state where the screen 4 is wound around the winding unit 3 before the pull grip 7 is pulled, the upper end of the wound screen 4 is attached to the attachment frame 2 The rotary shaft 31 of the winding unit 3 is rotatably and slidably supported by the slide groove 20. Accordingly, in the state shown in FIG. 3A, the screen 4 is in the open state, but even at this time, the gap between the mounting frame 2 and the winding unit 3 is shielded from light automatically.

  When the pull grip 7 is pulled as shown in FIG. 3 (b) from the state shown in FIG. 3 (a), the take-up unit 3 can be rotated in the screen rewinding direction and the weight bar 5 can be lowered. . At this time, the rotary shaft 31 of the winding unit 3 slides downward along the slide groove 20 so that the upper end of the screen 4 wound around the winding unit 3 and the lower surface of the mounting frame 2 It is possible to prevent damage to the screen 4 by relieving the contact and reducing its friction.

  After pulling the pull grip 7 shown in FIG. 3 (b), releasing the pull grip 7 as shown in FIG. 3 (c) activates the lock of the stopper device to position the weight bar 5 at a desired position. Can. At this time, since the biasing force of the spring 8 always generates the biasing force for moving the support ring 9 upward, the upper end of the rolled and contracted screen 4 (or the winding portion where the screen 4 is completely unwound) The upper end 3) of the mounting frame 2 abuts on the lower surface of the mounting frame 2, and the rotary shaft 31 of the winding unit 3 is positioned upward along the slide groove 20 and is rotatably and slidably supported. Therefore, as shown in FIG. 3C, even when the screen 4 is closed, the gap between the mounting frame 2 and the winding unit 3 is automatically shielded from light.

  Therefore, in the first embodiment, it is possible to configure the roll screen 1 capable of suppressing the light leakage under the mounting frame 2 without providing the conventional gap preventing member.

Second Embodiment
Next, with reference to FIG. 4 and FIG. 5, the structure of the roll screen 1 of 2nd Embodiment by this invention is demonstrated. FIG. 4 is a perspective view showing a schematic configuration of a roll screen 1 according to a second embodiment of the present invention. FIGS. 5 (a) and 5 (b) are a front sectional view and a side sectional view partially showing a schematic configuration of the winding portion 3B in the roll screen 1 according to the second embodiment of the present invention. In the second embodiment, the same reference numerals as in the first embodiment denote the same constituent elements.

  In the roll screen 1 shown in FIG. 4, the support members 2a and 2b are fixed to both ends of the mounting frame 2, and the cylindrical take-up portion 3A can be rotated with an oval (rectangular rectangle) cross section between the support members 2a and 2b. Supported by

  As shown in FIG. 5A, the winding unit 3A moves relative to the first winding pipe 36 rotatably supported at a fixed position by the rotation shaft 31 with respect to the support member 2b, and relative to the support member 2b. And a second winding pipe 37 rotatably supported side by side with the first winding pipe 36 with respect to the pipe support portion 32. The support member 2a is arranged symmetrically with respect to the support member 2b and has the same structure as the support member 2b.

  The first winding pipe 36 is provided with a first gear 36a, the second winding pipe 37 is provided with a second gear 37a, and the first gear 36a and the second gear 37a are It meshes with the intermediate gear 38 and rotates in conjunction with it. For this reason, the first winding pipe 36 and the second winding pipe 37 always rotate in conjunction with each other in the same direction.

  Further, the gear shaft 38a of the intermediate gear 38, the first winding pipe 36 having the first gear 36a, and the second winding pipe 37 having the second gear 37a are provided on the left and right sides of the winding portion 3A. It is rotatably supported with respect to the pipe support portion 32 (see FIG. 1) to be disposed, and is covered with a flexible light-shielding material 34.

  And, in this example, the drive belt 35 is fixedly mounted on the outer surface of the shielding member 34 on which the first and second gears 36a and 37a and the intermediate gear 38 are positioned (FIG. 5 (b)) (See AA ′ cross section shown in)). The drive belt 35 acts as a slip stopper when winding up the screen 4 and may be a shield belt in which the shield 34 and the drive belt 35 are integrally formed.

  In the winding unit 3A configured as described above, as shown in FIG. 1, one end of the screen 4 is attached on the outer surface of the shielding member 34 so as to cover the driving belt 35, and the first and The screen 4 is suspended and supported so as to be wound up or unwound by the shielding member 34 and the drive belt 35 which rotate along with the second winding pipes 36 and 37. The other end of the screen 4 is attached to a weight bar 5 which functions as a weight member. Therefore, the screen 4 is stretched based on the weight of the weight bar 5. In the example of the present embodiment, the screen 4 is suspended from the outdoor side of the winding unit 3A. However, the screen 4 may be suspended from the indoor side of the winding unit 3A.

  Then, a pull grip 7 to which a pull cord is attached is provided at a substantially central portion in the left-right direction of the weight bar 5. Also, a spring motor that automatically rolls up the screen 4 to one or both of the first and second winding pipes 36 and 37 in the winding unit 3A, a stopper device that prevents the weight 4 of the screen 4 from falling, etc. Is housed (not shown).

  In this embodiment, the weight bar 5 can be lowered by rotating the take-up unit 3A in the screen rewinding direction by the pull operation of the pull grip 7, and the locking of the stopper device is activated when the pull grip 7 is released. . Therefore, the weight bar 5 can be positioned at a desired position. Further, with a slight pull operation of the pull grip 7, the lock of the stopper device can be released and the spring motor can be operated to perform automatic winding of the screen 4, and the winding unit 3A is rotated in the screen winding direction. The weight bar 5 can be raised to the upper limit position.

(Automatic shielding type winding unit)
Here, in the roll screen 1 shown in FIG. 4, the cylindrical winding portion 3A is not only rotatably supported between the support members 2a and 2b, but is also rotatably supported in the vertical direction.

  More specifically, as shown in FIGS. 4 and 5A, the support members 2a and 2b rotatably support the rotation shaft 31 acting as a rotation shaft of the first winding pipe 36 at a fixed position. The torsion springs 8T are provided on the rotary shafts 31 respectively supported by the support members 2a and 2b. One end of each torsion spring 8T engages with the retaining pin 21 projecting from the support members 2a and 2b, and the other end of each torsion spring 8T engages with the retaining pin 33 projecting from the respective pipe support portions 32 on both left and right sides. The end of the winding portion 3A, which is always on the side of the second winding pipe 37, generates a biasing force that causes the end to move upward.

  The roll screen 1 shown in FIG. 4 configured in this manner generates an urging force that moves the end of the winding portion 3A, which is always on the second winding pipe 37 side, upward by the urging force of the torsion spring 8T. The take-up unit 3A operates to move (turn) the end of the take-up unit 3A upward with the rotary shaft 31 as a fixed position axis.

  For this reason, as shown in FIG. 6A, in a state where the screen 4 is wound around the winding unit 3A before the pull grip 7 is pulled, the upper end of the wound screen 4 is the attachment frame 2 Is in contact with the lower surface of the Accordingly, in the state shown in FIG. 6A, the screen 4 is in the open state, but even at this time, the gap between the mounting frame 2 and the winding portion 3A is shielded from light at the time of automatic operation.

  When the pull grip 7 is pulled as shown in FIG. 6 (b) from the state shown in FIG. 6 (a), the take-up portion 3A can be rotated in the screen rewinding direction and the weight bar 5 can be lowered. . At this time, the end portion of the winding unit 3A on the second winding pipe 37 side is rotated downward so that the upper end of the screen 4 wound around the winding unit 3A and the attachment frame 2 The contact of the screen 4 with the lower surface is relieved, and damage to the screen 4 can be prevented by reducing its friction.

  After pulling the pull grip 7 shown in FIG. 6 (b), releasing the pull grip 7 as shown in FIG. 6 (c) activates the lock of the stopper device to position the weight bar 5 at a desired position. Can. At this time, the urging force of the torsion spring 8T always generates an urging force for moving the end of the winding portion 3A on the second winding pipe 37 side upward, so that the wound and thinned screen 4 The upper end (or the upper end of the winding unit 3A in which the screen 4 is completely unwound) is in contact with the lower surface of the mounting frame 2. Therefore, as shown in FIG. 6C, even when the screen 4 is in the closed state, the gap between the mounting frame 2 and the winding portion 3A is automatically shielded from light.

  In addition, when the influence of friction due to the contact between the upper end of the screen 4 wound up on the take-up portion 3A and the lower surface of the mounting frame 2 is small when pulling the pull grip 7, always want to maintain the contact In this case, the winding unit 3A may be configured such that the rotary shaft 31 is on the second winding pipe 37 side.

  For example, as shown in FIG. 8A, even when the winding unit 3A in which the rotating shaft 31 is on the second winding pipe 37 side is configured, the winding unit 3A is operated before the pull grip 7 is pulled. When the screen 4 is rolled up, the upper end of the rolled up screen 4 is in contact with the lower surface of the mounting frame 2. Therefore, in the state shown in FIG. 8A, the screen 4 is in the open state, but even at this time, the gap between the mounting frame 2 and the winding portion 3A is shielded from light automatically.

  When the pull grip 7 is pulled as shown in FIG. 8 (b) from the state shown in FIG. 8 (a), the pull grip 7 is pulled either or after the pull grip 7 is pulled, The upper end of the rolled-up screen 4 (or the upper end of the winding portion 3A in which the screen 4 is completely unwound) comes in contact with the lower surface of the mounting frame 2. Therefore, even when the screen 4 is closed, the gap between the mounting frame 2 and the take-up portion 3A is automatically shielded from light.

  Therefore, in the second embodiment, it is possible to configure the roll screen 1 capable of suppressing the light leakage under the mounting frame 2 without providing the conventional gap preventing member.

Third Embodiment
By the way, in the first and second embodiments described above, regardless of whether or not the screen 4 is wound around the winding unit 3, 3A, the sliding movement of the winding unit 3 or the winding unit 3A is automatically performed. Has described the roll screen 1 capable of suppressing light leakage below the mounting frame 2 by rotating the roll frame, but the roll screen making it possible to suppress light leakage below the mounting frame 2 selectively by manual operation One can also be configured.

  For example, as a modification of the first embodiment shown in FIG. 1, FIG. 8 shows a partial perspective view of the roll screen 1 of the third embodiment according to the present invention. Fig.9 (a), (b) is a side view which shows the clearance gap operation by manual control in the roll screen 1 of 3rd Embodiment by this invention, respectively. In FIG. 8 and FIG. 9, the same reference numerals are given to the same components as in the first embodiment.

  As shown in FIG. 8, in order to realize manual clearance prevention, a flat lock member 50 is provided in the present embodiment, and the lock member 50 has a round hole 51, a bearing recess 52, and a round recess 53. ing.

  First, the slide groove 20 is provided in the support member 2a, and the rotation shaft 31 of the winding unit 3 is rotatably and slidably supported by the slide groove 20. Further, a round bar-like locking pin 25 and a round bar-like shaft pin 26 whose distal end is expanded in diameter in this example are provided on the supporting member 2a so as to project therefrom.

  By inserting a round hole 51 provided in the vicinity of one longitudinal direction end portion of the lock member 50 in the shaft pin 26, the lock member 50 can be attached to and detached from the outside, and can be flexibly rotated with respect to the support member 2a. It is hung.

  The bearing provided on the upper end of the lock member 50 in a state in which the circular recess 53 provided on the lower end near the other end in the longitudinal direction of the lock member 50 is locked to the locking pin 25 of the support member 2a. The recess 52 slides the rotary shaft 31 of the winding unit 3 upward along the slide groove 20 to rotatably support the same.

  Accordingly, when light leakage under the mounting frame 2 is not suppressed, as shown in FIG. 9A, the lock member 50 is simply supported without supporting the rotary shaft 31 of the winding unit 3 by the lock member 50. The rotary shaft 31 of the winding unit 3 can be supported by the lower end of the slide groove 20 while being hung on the shaft pin 26 of the member 2 a.

  On the other hand, when suppressing the light leakage under the attachment frame 2, as shown in FIG. 9B, the lock member 50 is supported so that the rotary shaft 31 of the winding unit 3 is supported by the bearing recess 52 of the lock member 50. The round concave portion 53 of the second embodiment is locked to the locking pin 25 of the support member 2a.

  Thus, regardless of whether or not the screen 4 is wound around the winding unit 3, it is possible to switch whether to suppress light leakage under the mounting frame 2 selectively by manual operation. The roll screen 1 can also be configured.

  The lock member 50 capable of such manual switching can be applied to the above-described two-axis (first and second winding pipes 36 and 37) roll screen 1 as well.

  Therefore, in the third embodiment, it is possible to configure the roll screen 1 capable of suppressing light leakage under the mounting frame 2 without providing a conventional gap preventing member.

  Although the present invention has been described above by citing specific embodiments and examples, the present invention is not limited to the examples of the embodiments described above, and various modifications can be made without departing from the technical concept thereof. For example, the slide groove 20 may not be linear up and down, may be curvilinear, and may be diagonally linear or curvilinear.

  Moreover, although the example which performs raising / lowering operation of the screen 4 by the pull grip 7 was mainly demonstrated in the example of each embodiment mentioned above, it is a form which rotates the winding parts 3 and 3A by operation cords, such as a ball chain. It is also possible to apply.

  According to the present invention, light leakage in the lower part of the mounting frame 2 can be suppressed without providing a gap preventing member as in the prior art, which is useful for applications of a roll screen requiring light leakage prevention .

Reference Signs List 1 roll screen 2 mounting frame 2a, 2b support member 3, 3A take-up portion 4 screen 5 weight bar 7 pull grip 8 spring 8 T torsion spring 9 support ring 10 retaining member 20 slide groove 21 fastening pin 22 fastening section 25 fastening pin Reference Signs List 26 shaft pin 31 rotating shaft 32 pipe support 33 retaining pin 34 shield 35 drive belt 36 first winding pipe 36a first gear 37 second winding pipe 37a second gear 38 intermediate gear 50 locking member 51 Round hole 52 Bearing recess 53 Round recess

Claims (6)

A roll screen for raising and lowering the screen,
A winding unit which winds up or rewinds the screen;
A frame supporting the winding unit via a support member;
A movable mechanism configured to move the winding unit in the direction of the frame and to suppress external light incident from below the frame;
The roll screen characterized by having.   The roll screen according to claim 1, wherein the movable mechanism is configured to be capable of shielding external light incident from below the frame.   The movable mechanism according to claim 1 or 2, wherein the movable shaft is configured to movably support the rotation shaft of the winding unit in a slide groove provided in the support member. Roll screen. The winding unit has a rotating shaft that supports the twin-tube winding pipes arranged side by side in an interlockable manner.
The movable mechanism is configured to movably support the take-up unit with respect to the support member with respect to the support member with the rotation shaft of the take-up unit as an axis. The roll screen of claim 1 or 2.   The roll screen according to any one of claims 1 to 4, wherein the movable mechanism includes biasing means for biasing the winding unit to move automatically in the direction of the frame. .   The movable mechanism includes a lock member that manually moves the winding unit in the direction of the frame and can manually switch whether or not external light entering from below the frame is shielded. The roll screen according to any one of claims 1 to 4, characterized in that: