JP3813572B2 - blind - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a blind.
[0002]
[Prior art]
Conventionally, a blind is supported by a ladder cord that hangs down from a head box, and a plurality of slats are supported in an aligned state. By operating an operation unit that hangs down from the head box, one end of the ladder cord is connected. The rotation shaft is driven to rotate, and the inclination of the slat can be changed by the rotation of the rotation shaft.
[0003]
In general, when changing the rotation angle of the slat, adjust the inclination of the slat so that the rotation angle of the slat is appropriate by operating the operation part while directly observing the slat in front of the operator's eyes. Yes.
[0004]
However, depending on the mounting position of the blind, there is a case where the inclination of the slat cannot be correctly determined even by directly viewing the slat. When the blind is mounted on the upper side of the high window, the blind is looked up from below, so it is difficult to confirm the exact rotation angle of the slat. In addition, for example, in the case of an upper and lower partial open / close blind that has slat groups at the top and bottom as described in Patent Document 1 and can individually change the rotation angle of each slat group, When the position of the group is high, it is difficult to accurately confirm the rotation angle of the slats for the upper slat group, even though the rotation angle of the slats can be confirmed accurately for the lower slat group.
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 62-3517 [0006]
[Problems to be solved by the invention]
In the case of a configuration that has a sensor that detects the rotation angle of the slat, such as an electronically controlled electric blind, and that the slat is driven to rotate electrically, if the slat rotation angle is set in advance by the controller, it is detected by the sensor. Since the slat is automatically driven so that the slat rotation angle becomes equal to the set slat rotation angle, even if the slat rotation angle cannot be accurately confirmed by visual observation, the slat rotation angle can be adjusted to the desired slat rotation angle. The slat can be tilted. However, if it is not an electronically controlled electric blind, especially when the blind is mounted on a high window, the slat will not drop to the level of the eye even when the blind is lowered most, and the inclination of the slat can be accurately determined visually. If it cannot be confirmed, there is a problem that it cannot be confirmed whether or not the slats can be in a desired inclination.
[0007]
The present invention has been made in view of such a problem, and its purpose is to confirm whether or not the slat has a desired inclination even when the inclination of the blind slat cannot be accurately confirmed by visual observation. Is to provide a blind that can.
[0008]
[Means for Solving the Problems]
In order to achieve the above-described object, according to the first aspect of the present invention, a plurality of slats are supported in an aligned state by a ladder cord hanging from a head box, and an operation unit hanging from the head box is operated. in blind while being disposed in the head box a rotating shaft end of the ladder cord is connected rotationally driven, the inclination of the slats by the rotation of the rotary shaft in the variable, the headbox, the rotation angle of the scan rats An angle display unit for displaying is disposed , and the angle display unit is connected to a pair of rotating bodies provided on the rotating shaft and spaced apart from each other in the longitudinal direction. It is characterized by comprising a moving member that can move in the direction and a fixed mark portion that represents the moving position of the moving member .
[0009]
With this configuration, even if the inclination of the slat cannot be grasped by direct visual observation, the rotation angle of the slat can be known by visually observing the angle display portion provided in the head box. By operating the operation unit while viewing this angle display, it is possible to adjust the rotation angle of the desired slat. Since the rotation angle of the slat is displayed using the rotation of the rotation shaft, the angle display unit can be realized with a simple configuration.
[0010]
Since the rotational movement amount of the rotating body is converted into the longitudinal movement of the head box of the moving member, the rotation angle of the slat can be expressed as a linear relative movement with respect to the mark part of the moving member, which is easy to understand even from a distance It can be.
[0011]
According to the second aspect of the present invention, a plurality of slats are supported in an aligned state by a ladder cord hanging from the head box, and the operation unit hanging from the head box is operated to be disposed in the head box and the ladder. In the blind that rotationally drives the rotating shaft to which one end of the cord is connected and makes the inclination of the slat variable by the rotation of the rotating shaft, the head box is provided with an angle display unit that displays the rotation angle of the slat, The angle display unit includes a moving member that integrally rotates within a range of a predetermined angle corresponding to a rotation axis and a slat rotation angle range, and a fixed mark portion that represents a moving position of the moving member.
[0012]
According to a third aspect of the invention, the said moving member according to claim 1 or 2, wherein the pointer is provided, wherein the angle table radical 113 is the relative location of the pointer relative to the mark portion, and displays the rotational angle of the slats It is characterized by that.
[0013]
With this configuration, it is possible to easily determine the rotation angle of the slat depending on the position of the pointer, even if it is far from the blind. By configuring the pointer to stand out, it is possible to make the angle display portion easier to see.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a perspective view showing a horizontal blind according to an embodiment of the present invention. The illustrated horizontal blind 10 has a head box 12 attached to a fixed portion such as a wall surface or a ceiling surface via a bracket 11, and a plurality of ladder-shaped ladder cords 16 hanging from the head box 12 Step slats 18 are supported in alignment. In this example, the horizontal blind 10 is used to shield a high part of a high window.
[0016]
One end of the ladder cord 16 is connected to a bottom rail 19 disposed below the lowermost slat 18. One end of a plurality of lifting cords 14 depending from the head box 12 is connected to the bottom rail 19.
[0017]
A rotation shaft 22 is rotatably supported in the head box 12 and extends in the longitudinal direction in the head box 12, and one end side thereof is connected to a rotation transmission device 24 disposed on one end side of the head box 12. Connected. An operation cord 26 as an operation unit is suspended from the rotation transmission device 24. The rotation transmission device 24 transmits a manual operation force from the operation cord 26 to cause the rotation shaft 22 to rotate and to prevent the rotation of the rotation shaft 22 due to its own weight or the like. The lower part of the operation cord 26 is suspended downward from the head box 12 and extends to the reach of the operator.
[0018]
The rotary shaft 22 is provided with drums 20 that are a plurality of rotating bodies that are spaced apart from each other in the longitudinal direction, corresponding to the plurality of lifting and lowering cords 14 and ladder cords 16. The drum 20 is wound with the other end of the lifting / lowering cord 14 wound and unwound, a clutch spring 32 to which the other end of the ladder cord 16 is attached, and the clutch spring 32 being tightened. And a spring receiving portion 34 to be rotated. The rotating shaft 22 passes through the center of each of the spring receiving portion 34 and the winding portion 30, and the spring receiving portion 34 and the winding portion 30 basically rotate integrally with the rotating shaft 22.
[0019]
As shown in FIG. 2, bent portions 32 a and 32 b are formed at both ends of the clutch spring 32. The bent portions 32 a and 32 b are perpendicular to the front and rear sides of the ladder-like ladder cord 16. The upper ends of the cords are connected to each other. When the spring receiving portion 34 rotates, the clutch spring 32 is fastened to the spring receiving portion 34 and thus rotates together with the spring receiving portion 34 up to a predetermined angle range. When the angle exceeds the predetermined angle range, one of the bent portion 32a and the bent portion 32b comes into contact with the regulating portion 21 provided on the drum base that receives the drum 20, and the clutch spring 32 is loosened and is not coupled to the spring receiving portion 34. And is unable to rotate. Thus, when the clutch spring 32 rotates integrally with the rotary shaft 22 within a predetermined angle range, one of the bent portion 32a and the bent portion 32b of the clutch spring 32 moves up and down relative to the other bent portion. Accordingly, either one of the front side and the rear side of the ladder cord 16 is relatively moved up and down so that the slat 18 can rotate. The predetermined angle range in which the clutch spring 32 can rotate is the rotation angle range in which the slat 18 can rotate.
[0020]
As shown in FIGS. 3 to 6, a slide cord 36 as a moving member is disposed across the two drums 20 and 20. One end of the slide cord 36 is connected to a bent portion 32 a of the clutch spring 32 of one drum 20, and the other end of the slide cord 36 is connected to a bent portion 32 b of the clutch spring 32 of the other drum 20. The connection point of the drum 20 of the slide cord 36 is not limited to the bent portions 32a and 32b of the clutch spring 32, and may be any other position. The drum 20 needs to be connected to the drum 20 from different rotation directions. That is, if one end of the slide cord 36 is connected to the one drum 20 from the clockwise direction, the other end may be connected to the other drum 20 from the counterclockwise direction. An intermediate portion of the slide cord 36 is guided by a guide roller, led out from an opening 12 a formed in the lower surface of the head box 12, and disposed outside the head box 12 along the lower surface of the head box 12.
[0021]
A pointer 36 a is provided in the middle portion of the slide cord 36. The pointer 36a may be provided with a conspicuous color or the like different from other portions of the slide cord 36 so that the pointer 36a is conspicuous. A mark portion 38 is provided below the head box 12 along the slide cord 36. A scale or the like is displayed on the mark portion 38. The mark portion 38 can be configured by, for example, a seal printed with a scale, and the seal is attached to the lower surface of the head box 12.
[0022]
An angle display unit 40 is configured by the intermediate portion and the mark portion 38 of the slide cord 36, and these are disposed outside the head box 12 so as to be visible from the outside.
[0023]
In the horizontal blind 10 configured as described above, in order to rotate the slat 18, the operation cord 26 is pulled to rotate the rotating shaft 22. When the rotating shaft 22 is rotated within the predetermined angle range, as described above, the clutch spring 32 is rotated together with the spring receiving portion 34 that can rotate integrally with the rotating shaft 22, and the slat 18 is rotated. At this time, for example, if the bent portion 32a of the clutch spring 32 moves downward, the bent portion 32b of the clutch spring 32 moves upward. Therefore, the slide cord 36 has one end portion connected to the bent portion 32a of one clutch spring 32 led out from the head box 12 and the other end connected to the bent portion 32b of the other clutch spring 32. A side part is introduced more into the head box 12. Thus, the intermediate portion of the slide cord 36 moves along the lower surface of the head box 12, and the pointer 36 a moves relative to the scale of the mark portion 38. The relative position of the pointer 36a to the scale of the mark portion 38 corresponds to the rotation angle of the slat 18 (see FIGS. 5 and 6). For example, when the slat 18 becomes horizontal, that is, when a color or the like that stands out from the scale at the position overlapping the pointer 36a when the slat 18 is centered at the rotation angle of the slat 18 is given, the slat 18 becomes horizontal. This can be confirmed even from a position below the head box 12.
[0024]
Thus, even if the rotation angle of the slat 18 cannot be directly visually confirmed, the inclination of the slat can be set to a desired rotation angle of the slat. Further, even in the case of the upper and lower partial opening / closing blinds as in Patent Document 1, the rotation angle of the upper slat group can be confirmed.
[0025]
When the operation cord 26 is further pulled and the rotary shaft 22 is rotated beyond the predetermined angle range, the lifting / lowering cord 14 is wound around the winding portion 30 of the drum 20, so that the bottom rail 19 rises and the slat 18 Rises in order from below. Alternatively, when the rotary shaft 22 is rotated in the reverse direction, the lifting / lowering cord 14 is unwound from the winding portion 30 of the drum 20, so that the bottom rail 19 is lowered and the slat 18 is lowered. At this time, since the clutch spring 32 does not rotate any more, the slide cord 36 does not move, and the pointer 36a indicates the scale position of the mark portion 38 corresponding to the rotation angle of the slat 18 at that time.
[0026]
In the above embodiment, the amount of rotation of the drum 20 that rotates integrally with the rotating shaft 22 by using the movement of the rotating shaft 22 that is a driving member for rotating the slat 18 is determined by the amount of movement of the slide cord 36. Since the pointer 36a is moved mechanically, the angle can be displayed with a simple and inexpensive configuration. Further, since the angle is expressed as a linear movement of the slide cord 36 in the longitudinal direction, the slide cord 36 can be easily understood from a distance.
[0027]
In this example, both ends of the slide cord 36 are attached to the pair of drums 20 for winding and unwinding the lifting / lowering cord 14. However, the present invention is not limited to this, and both ends of the slide cord 36 are attached to the rotary shaft 22. It is also possible to provide a drum which is another rotating body for the purpose. Preferably, as described in this example, both ends of the slide cord 36 may be attached to the clutch spring 32 that rotates to drive the ladder cord 16, but the present invention is not limited to this, and it is attached to another position. It may be. In this case, when the rotation angle exceeds a predetermined rotation angle, the slide cord 36 continues to move with the rotation of the rotary shaft 22 even though the rotation angle of the slat 18 remains unchanged. The both ends of the slide cord 36 can be wound around a rotating body and attached so as to be unwound, and when the rotation angle exceeds a predetermined rotation angle, the pointer 36a can be removed from the range of the mark portion 38.
[0028]
Next, FIG. 7 is a main part diagram showing a second embodiment of the present invention. In the figure, there is provided a rotating body 42 that is a moving member that rotates integrally with the drum 20 or the rotary shaft 22 within a predetermined angle range corresponding to the slat rotation angle range. That is, the rotating body 42 can be configured in the same manner as the clutch spring of the first embodiment, can rotate integrally with the rotating shaft 22, and cannot rotate any further if it rotates more than a predetermined rotation angle. It has become. A protrusion 42 a protruding from the outer peripheral surface of the rotating body 42 protrudes from an opening 12 b formed on the lower surface of the head box 12. The tip of the projection 42a becomes a pointer 42b, and a conspicuous color or the like may be given so as to stand out. A mark portion 44 is provided in the vicinity of the opening 12 b along the width direction of the head box 12. The mark portion 44 can be configured by a seal or the like on which a scale is printed, and the seal is attached to the lower surface of the head box 12. The position of the center of the scale corresponding to the horizontal position of the slat 18 may be provided with a conspicuous color or the like.
[0029]
The protrusion 42a, that is, the rotating body 42 and the mark portion 44 constitute an angle display portion 46, which is disposed outside the head box 12 so as to be visible from the outside.
[0030]
Also in the second embodiment, when the operation cord 26 is pulled and the rotating shaft 22 is rotated within the range of the predetermined angle in order to cause the slat 18 to rotate, the protrusion 42a of the rotating body 42 becomes the rotating shaft. 22, the pointer 42 b moves relative to the scale of the mark portion 44. Therefore, the rotation angle of the slat 18 can be confirmed by the relative position of the mark portion 44 of the pointer 42 b.
[0031]
In the above embodiment, the mark portions 38 and 44 are provided with scales. In this case, when only the horizontal position of the slat 18 needs to be known, the mark portions 38 and 44 correspond thereto. It may be provided with a single mark provided at the position to be. The angle display units 40 and 46 may be disposed on the front side of the head box 12. In the above embodiment, the angle display unit is disposed outside the head box. However, the present invention is not limited to this, and the angle display unit may be disposed so as to be visible from the outside of the head box. The angle display unit may be arranged inside the head box so that it can be seen from a notch or the like of the head box.
[0032]
【The invention's effect】
As described above, according to the present invention, even if the inclination of the slat cannot be grasped by direct visual observation, the rotational angle of the slat can be understood by visually observing the angle display portion provided in the head box. become. By operating the operation unit while viewing this angle display, it is possible to adjust the rotation angle of the desired slat. Since the rotation angle of the slat is displayed using the rotation of the rotation shaft, the angle display unit can be realized with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an entire blind according to the present invention.
FIGS. 2A and 2B are diagrams showing the relationship between the clutch spring and the rotation of the slats, where FIG. 2A shows the horizontal state of the slats, and FIGS. 2B and 2C show the state where the slats are rotated to the maximum.
FIG. 3 is a perspective view showing a relationship between a rotating shaft, a drum, and a slide cord, and shows a parallel state of slats. Headboxes, slats, etc. are omitted.
FIG. 4 is a view of a part of the upper part of the blind as viewed from below.
FIG. 5 is a view corresponding to FIG. 3 showing a state in which the slat is rotated to the maximum.
6 is a view corresponding to FIG. 3 showing a state in which the slat is rotated to the maximum in the opposite direction to FIG.
FIGS. 7A and 7B are main part views showing a second embodiment of the present invention, in which (a-1) and (a-2) are horizontal states of slats, (b-1), (b-2), ( c-1) (c-2) represents a state in which the slat is rotated to the maximum, (a-1), (b-1) and (c-1) are equivalent to FIG. 2, (a-2), (B-2) and (c-2) are partial bottom views of the head box 12.
[Explanation of symbols]
10 Horizontal Blind 12 Head Box 16 Ladder Cord 18 Slat 20 Drum (Rotating Body)
22 Rotating shaft 26 Operation code (operation unit)
36 Slide cord (moving member)
36a Pointer 38, 44 Mark part 40 Angle display part 42 Rotating body (moving member)
42b Pointer 46 Angle display

Claims (3)

A plurality of slats (18) are supported in an aligned state by a ladder cord (16) hanging from the head box (12), and by operating an operating portion (26) hanging from the head box (12), the head box (12 ) And a blind which drives the rotary shaft (22) to which one end of the ladder cord (16) is connected and makes the inclination of the slat (18) variable by the rotation of the rotary shaft (22).
A headbox (12), the angle display unit for displaying the rotation angle of the scan rats (18) (40) is disposed,
The angle display unit (40) is connected at both ends to a pair of rotating bodies (20) provided on the rotating shaft (22) so as to be spaced apart from each other in the longitudinal direction, and the head box as the rotating body (20) rotates. A blind characterized by comprising a moving member (36) movable in the longitudinal direction of (12) and a fixed mark portion (38) indicating a moving position of the moving member (36) . A plurality of slats (18) are supported in an aligned state by a ladder cord (16) that hangs from the head box (12), and by operating an operating portion (26) that hangs from the head box (12), the head box (12 ) And a rotating shaft (22) to which one end of the ladder cord (16) is coupled and rotationally driven so that the inclination of the slat (18) can be varied by the rotation of the rotating shaft (22).
The head box (12) is provided with an angle display unit (46) for displaying the rotation angle of the slat (18) ,
The angle display unit (46) includes a moving member (42) that integrally rotates within a range of a predetermined angle corresponding to the rotation axis (22) and the slat rotation angle range, and a fixed position that represents a moving position of the moving member (42). And a mark portion (44). The moving members (36, 42) are provided with pointers (36a, 42b), and the angle display portions (40, 46) are relative positions of the pointers (36a, 42b) with respect to the mark portions (38, 44). The blind according to claim 1 or 2, characterized in that it represents the rotational angle of the slat (18).

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