JPH0633673A - Blind device - Google Patents

Abstract

PURPOSE:To improve facility by installing a rocking member rocked with the rocking of an elevating cord, a ladder cord changing the inclination of a slat and an operation conversion mechanism operating the ladder cord in a specified manner. CONSTITUTION:An operation conversion mechanism is composed of a drum 81, a shaft 80 for changing a slat angle and a rocking-rotation changing mechanism 60. The other end 2b of an elevating cord 2 is gripped and a rocking member 70 is rocked centering around the rocking pin 68 of a rocking support member 67, the pawl 73 of the member 70 is engaged with a spur gear 66 and the input shaft 62 of a gear box 61 is rotated together with the gear 66. The shaft 80 is also turned and the drum 81 is revolved, the vertical cord 7b of a ladder cord 7 is lifted, and vertical cords 7a are lowered and the inclinations of slats 4, 4... are altered. When the vertical positions of the slats 4 are varied, the other end 2b is pulled down, and the slats 4, 4... are elevated and brought down by operating a lifting-lowering-quantity adjusting block 10. Accordingly, operating ends are concentrated to the other end 2b, thus improving facility.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind device for changing the inclination angle of a plurality of slats arranged between a top box and a bottom rail.

[0002]

2. Description of the Related Art A conventional blind device is disclosed in, for example, Japanese Patent Laid-Open No. 58-113485. This blind device has a head box, a bottom rail, and a plurality of slats arranged between them. A slat angle changing shaft that extends in the longitudinal direction and is rotatable is provided in the head box, and the tilt angle of the slat can be changed by rotating the shaft. The head box is provided with a hollow operating rod extending obliquely downward from the head box. A gear is provided at the end of the slat angle changing shaft, and a gear that engages with a gear provided at the end of the shaft is also provided at the upper end of the operating rod.

Further, a metal fitting capable of closing the opening at the lower end is provided at the lower end of the hollow operation rod.
This metal fitting is biased by a spring in the upward direction, that is, in the direction of closing the lower end opening of the operation rod. The other end of the lifting cord, one end of which is attached to the bottom rail, is inserted into the hollow operating rod, passes between the lower end opening edge of the operating rod and the metal fitting, and hangs downward.

In this blind device, when the slant angle of the slat is changed, the operating rod is grasped,
This is rotated around the longitudinal axis. When the operating rod rotates, the slat angle changing shaft rotates via the gear, and the tilt angle of the slat changes. On the other hand, when raising or lowering the slat, the other end of the raising / lowering cord is grasped and pulled downward. When the other end of the elevating cord is pulled downward, the metal fitting, which has been holding the elevating cord up to the lower end opening edge of the operating rod, also moves downward, and the elevating cord can freely move up and down. After this state,
By pulling the other end of the lifting cord further downward, one end of the lifting cord rises and the bottom rail and slat rise. When the bottom rail and slats are in the desired position, release the lifting cord. When there is no longer the force to pull the other end of the lifting cord downward, the metal fitting biased upward rises, the lifting cord is sandwiched between the lower opening edge of the operating rod, and the bottom rail and slats descend from there. It becomes impossible.

As described above, this blind device aims to improve the usability by concentrating the operating end for raising and lowering the slats and the operating end for changing the slant tilt angle as much as possible.

[0006]

However, in such a conventional blind device, it is necessary to bring the other end of the lifting cord, which is the lifting operation end of the slat, and the operating rod, which is the operation end for changing the tilt angle of the slat, close to each other to some extent. Although it is possible to perform, the operation of raising and lowering the slat and the operation of changing the tilt angle of the slat must be operated by gripping different operation ends, which is not necessarily convenient.

[0007] Therefore, a first object of the present invention is to provide a blind device which is easy to use by operating one operating end so that the slats can be raised and lowered and the slant angle of the slats can be changed. . Second of the present invention
It is an object of the invention to provide a blind device capable of changing the slant angle of the slat by a mechanism different from the conventional one.

[0008]

A blind device for achieving the first object swings when the other end side of an elevating cord hanging from a top box is swung. A swing member, and a slat support member that supports a plurality of slats and that changes the tilt angle of the plurality of supported slats by a predetermined motion of itself.
And a motion conversion mechanism for causing the slat support member to perform the predetermined motion by the rocking motion of the rocking member.

Another blind device for achieving the first object is a slat angle changing shaft arranged in the top box in parallel with a longitudinal direction thereof, and the slat angle changing shaft. As a central axis, a tubular member fixed to the shaft for changing the slat angle and a ladder shape,
The upper end is attached to the tubular member, the lower end is attached to the bottom rail, and a ladder cord that supports a plurality of the slats by its transverse cord and a slant angle changing shaft at substantially right angles. And having a horizontally extending input shaft, when the input shaft is rotated, a mechanism for rotating the slat angle changing shaft, a gear provided on the input shaft of the mechanism, and below the gear, A swing member having both upper and lower ends thereof swingable, and the other end of the lifting cord hanging from the top box moves up and down relatively to the lower end of the swing member. A connecting tool that connects with a part of the other end of the elevating cord is preferably provided, and the upper end portion of the swing member has the swing member in one of the swing directions of the swing member. First pawl that engages with the gear when rocked And it is characterized in that a second pawl which is rocking member to the other to engage said gear and oscillates is formed.

Here, the lifting mechanism of the above blind device has a movable side holding member which is arranged so as to be capable of reciprocating in a predetermined stroke in the longitudinal direction of the top box, and at one stroke end of the stroke. A fixed side holding member that holds the lifting cord between the moving side holding member and the bottom rail so that the bottom rail cannot be lowered, and the moving side holding member moves as the lifting cord moves. An elevating cord guide member for pressing the elevating cord against the moving side holding member, an interlocking member partially attached to the moving side holding member, and a part of the interlocking member by reciprocating movement of the moving side holding member A reciprocating movement guide member that causes the other part of the interlocking member to perform a relative reciprocating movement having the reciprocating movement direction component of the moving side holding member in the reciprocating movement process of The circulation movement guide member includes the other part of the interlocking member in order to constrain the movable side holding member on the other stroke end side of the stroke so as not to move in the one stroke end direction. It is preferable that a restraint portion for restraining is formed.

Further, a blind device for achieving the second object supports a slat angle changing shaft which is rotatably arranged in parallel with a longitudinal direction of the top box and a plurality of slats. In addition, a slat support member that changes the tilt angles of the plurality of slats that are supported by the rotation of the slat angle changing shaft, and an input that extends substantially at right angles to the slat angle changing shaft and in the horizontal direction. A shaft, and a mechanism for rotating the slat angle changing shaft when the input shaft is rotated, a gear fixed to the input shaft of the mechanism, and the upper and lower ends of itself below the gear. A swinging member that is swingable, and an upper end portion of the swinging member has a swinging direction in the swinging direction of the swinging member.
A first pawl that engages with the gear when the swing member swings is formed on one side, and a second pawl that engages with the gear when the swing member swings is formed on the other side. It is a feature.

[0012]

When the tilt angle of the slat is desired to be changed, the other end of the lifting cord is gripped and rocked. When the rocking member rocks along with this rocking, the motion conversion mechanism causes
The slat support member performs a predetermined operation, and the tilt angle of the slat changes. On the other hand, when it is desired to change the vertical position of the slat, the other end of the elevating cord is grasped and pulled down to elevate the slat. In this way, by operating the other end of the elevating cord, it is possible to elevate the slat and change the slant angle of the slat, which improves usability.

In the swing member having the first claw and the second claw, when the other end of the lifting cord is swung to swing the swing member, the first claw or the second claw is moved. One of the pawls of the gear engages the gear and causes the gear to rotate. When the gear rotates, the slat angle changing shaft also rotates, and the tilt angle of the slat changes. When the tilt angle of the slat reaches the target angle and the other end of the lifting cord is released, the other end of the lifting cord is in the original hanging state. In this process, the claws of the swinging member are disengaged from the gears, and the swinging member also returns to its original state. As described above, in the swing member having the first claw and the second claw, when the tilt angle of the slat is changed and the other end of the lifting cord is released, the swing member returns to the original state, that is, Since the constant state is maintained when the other end of the elevating cord is not rocked, the appearance can be improved.

Next, an elevating mechanism having a circulation motion guide member will be described. The interlocking member, a part of which is attached to the moving-side holding member, has a part of the moving-side holding member which is relatively constant with respect to the circulating-motion guiding member due to the reciprocating movement of the moving-side holding member. Circulates in the direction. The other part of the interlocking member passes through the restraint portion and is restrained there in the course of this circular movement. In this state, even if a force for moving the moving side holding member to one stroke end side acts, the other part of the interlocking member cannot start the circulation motion. Therefore, the moving-side holding member to which a part of the interlocking member is attached cannot move to the stroke end side. However, even in this state, when a force for moving the moving-side holding member to the other stroke end side acts, the restraint portion cannot restrain the other part of the interlocking member there.
For this reason, the other part of the interlocking member is disengaged from the restraint portion and then circulates with the reciprocating movement of the moving-side holding member until reaching the restraint portion again.

When the moving-side holding member has one stroke end, the lifting cord is held between the moving-side holding member and the fixed-side holding member, and the bottom rail and the slat cannot be lowered. Is constrained to the height of. From this state, in order to release the restraint of the bottom rail and slat and raise it, first pull the other end of the lifting cord in a certain direction (the moving direction of the lifting cord at this time is the rail rising direction). . When the elevating cord is pulled and the elevating cord moves in the rail ascending direction, the moving-side holding member pressed against the elevating cord also moves to the other stroke end side. After that, when the lifting cord is released, the bottom rail and the slats are lowered by their own weight, so that the lifting cord moves in the rail lowering direction and the moving-side holding member also moves to one stroke end side. During this series of movements of the moving-side holding member, the other part of the interlocking member that makes a circular motion reaches the restraining portion of the circulating motion guide member, and the moving-side holding member to which a part of the interlocking member is attached is You will not be able to move to the end side. Therefore, even if the lifting cord is released and the bottom rail and slat are lowered, and the lifting cord moves in the rail lowering direction, the moving side holding member does not move to one stroke end side, and the lifting cord is fixed side. The bottom rail and the slats are completely released from the lowering restraint without being held between the holding members.

After the lowering restraint of the bottom rail and the slat is completely released, when the lifting cord is pulled again in the same direction as when the lifting cord was released, the holding member on the moving side moves to the other side as the lifting cord moves in the rail rising direction. While moving to the stroke end side, the other part of the interlocking member is disengaged from the restraint portion as described above. Pull the lifting cord further to raise the bottom rail and slat to the desired position. At this time, the moving-side holding member stops at the other stroke end, but the lifting cord slides on the moving-side holding member and moves in the pulling direction of the lifting cord, that is, in the rail rising direction.

When the bottom rail and the slats are lifted to the desired position, the lifting cord is released. When the lifting cord is released, the lifting cord also moves in the rail lowering direction following the lowering of the bottom rail and slat. At this time, the other part of the interlocking member is already disengaged from the restraint portion of the circulation motion guide member, and the circulation movement is possible, so that the moving side holding member also moves to one stroke end side as the lifting cord moves.
Here, what is important is that the other part of the interlocking member is regulated by the circulation motion guide member so as to perform the circulation motion. For this reason, the other part of the interlocking member returns to the direction in which the circular motion has been carried out in the opposite direction even after the lifting cord is released after it is disengaged from the restraint portion, reaches the restraint portion again, and moves to the holding member on the moving side. Is not immovably restrained to one stroke end side. When the moving-side holding member reaches one stroke end, the moving-side holding member again holds the lifting cord between itself and the fixed-side holding member, and restrains the bottom rail and the shielding member so that they cannot descend.

As described above, according to the lifting mechanism, the lifting and lowering cords can be pulled in the same direction to release the restraint of the bottom rail and to raise the bottom rail, so that the operability can be enhanced.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the blind device according to the present invention will be described below with reference to the drawings. The same parts are designated by the same reference numerals, and duplicate description of such parts will be omitted. First, using FIGS. 1 to 12,
A first embodiment of the blind device will be described. As shown in FIG. 1, the blind device of the present embodiment includes a head box 1, a bottom rail 3, a plurality of slats 4, 4, ... Arranged between them, a bottom rail 3, and a plurality of slats 4 ,. It has an elevating device for elevating 4, 4, and an angle adjusting device for changing the inclination angle of the slat 4.

The lifting device is, as shown in FIGS. 1 and 4,
The bottom rail 3 includes an elevating cord 2 whose one end 2a is attached via a spring 9, and an elevating amount adjusting block 10 provided in the head box 1. The lifting cord 2 passes through the inside of the head box 1 and the lifting amount adjusting block 10 provided therein, and the other end 2b is hung from the end of the head box 1. In the head box 1, the lifting cord 2 in the head box 1 changes its direction from both ends 2a and 2b extending vertically downward and is substantially parallel to the longitudinal direction of the head box 1. A guide roller 8 is provided.

The lifting amount adjusting block 10 is of a groove type having an opening at the top, and a rack 11 is formed at the bottom thereof from a vicinity of one end to a predetermined position toward the other end. The rack 11 is formed obliquely so as to become lower from the vicinity of one end toward the other end. Fixed side rollers 13 are axially supported by the side walls 12, 12 of the block 10 on one end side so that the rotation axis is substantially perpendicular to the longitudinal direction of the head box 1.
Rolling rollers 14 are provided on the rack 11 for rolling along the rack 11 and for holding the elevating cord 2 between the fixed roller 13 and the fixed roller 13. A gear that engages with the gear of the rack 11 is formed around the rolling roller 14. As shown in FIG. 6, roller pins 15 and 15 are provided on the center axis of rotation of the rolling roller 14 so as to project therefrom.

Roller pins 15 and 15 of the rolling roller 14 are fitted in the side walls 12 and 12 of the block 10 to regulate the reciprocating movement regulating grooves 16 and 16 for regulating the reciprocating movement region associated with the rolling movement of the rolling roller 14. And a hook member 20 that engages with the tip end portion of one roller pin 15 and immovably restrains the rolling roller 14 toward one end portion side of the block 10. This reciprocating movement regulating groove 16
Is a lifting cord holding position where the rolling roller 14 rolls the rack 11 and holds the lifting cord 2 between the climbing fixed side roller 13 and the slat 4 and the bottom rail 3 so as not to be lowered. The moving roller 14 is located on the other end side of the block 10 and is formed so that the reciprocating movement of the rolling roller 14 can be ensured between an elevating cord free position where the elevating cord 2 can freely move.

Further, the hook member 20 is attached to the side wall 12 of the lifting amount adjusting block 10 by a pin 21 so that the tip end side can swing vertically and horizontally. The pin 21 is provided with a spring 22 for urging the tip end side of the hook member 20 in the horizontal direction toward the roller pin 15 and in the vertically downward direction. Hook member 20
As shown in FIG. 5, the roller pin 15 has a plate shape, and the hook member 20 swings as the roller pin 15 reciprocates, so that the roller pin 15 makes a circular motion along the hook member 20, that is, the roller pin 15 The circular motion guide path 25 so that the circular motion of the hook member 20 relative to the hook member 20 is performed.
Are formed. In this circulation movement guide route 25,
A restraint portion 26 that engages with the tip end portion of the roller pin 15 and restrains the rolling roller 14 so as to be immovable in the lifting cord holding position direction.
And the roller pin 15 formed on the outer peripheral edge of the hook member 20.
The pin restraining direction path 27 that abuts when reaching the restraining portion 26
And a path different from the pin restraining direction path 27 where the roller pin 15 reaches the restraining portion 26, that is, the pin restraint releasing direction path 29 formed on the back surface of the hook member 20 (side surface of the lifting amount adjusting block 10). After the roller pin 15 reaches the restraint portion 26, a roller pin escape portion 28 for surely guiding it to the pin restraint release direction path 29 instead of the pin restraint direction path 27 is formed.

The elevating cord 2 in the elevating / lowering amount adjusting block 10 is further pushed down on the block 10 to move the elevating cord 2
As shown in FIG. 8, an elevating cord guide roller 17 for bringing the rolling roller 13 and the rolling roller 13 into pressure contact with each other, an upper limit position restricting member 18 for restricting an upper limit position in vertical swing of the hook member 20, and a lower limit position are defined. Lower limit position regulating member 1 to regulate
9 are provided.

As shown in FIG. 1, the angle adjusting device includes a slat angle changing shaft 80 having a regular hexagonal cross section and arranged in parallel with the longitudinal direction in the head box 1, and a slat angle changing shaft 80. Fixed cylindrical drum 81
When the ladder cord 7 supporting the plurality of slats 4, 4, ... And the other end 2b side of the elevating cord 2 hanging from the top box 1 are rocked, the rocking rocks with the rocking. A member 70 and a swing-rotation conversion mechanism 60 for rotating the slat angle changing shaft 80 by the swinging motion of the swinging member 70 are provided.

The ladder code 7, as its name implies,
It has a ladder shape and has horizontal cords 7a, 7a, ... Corresponding to the cross rails of the ladder and vertical cords 7b, 7b corresponding to the columns of the ladder. Multiple slats 4, 4, ...
Are respectively placed on the horizontal cords 7a. The upper ends of the vertical cords 7b and 7b are attached to the drum 81 with cord fixing pins 8
2, 82, and the lower ends of the vertical cords 7b, 7b are attached to the bottom rail 3. The swing-rotation conversion mechanism 60 is fixed to a gear box 61 having an input shaft 62 that extends at a right angle to the slat angle changing shaft 80 and extends in the horizontal direction, and at the tip of the input shaft 62. Spur gear 6
6, a swing support member 67 having an upper end attached to the input shaft 62, a cover 79 for covering the gear 66 and an engaging portion 71 of a swing member 70 described later.

In the gear box 61, as shown in FIG. 3, a worm 63 provided on the input shaft 62 and an end portion of the slat angle changing shaft 80 which engages with the worm 63 and serves as an output shaft. There are provided a wheel 64 and a bearing 65 of the slat angle changing shaft 80.
The bearing 65 is provided with a resistance member (not shown) that resists rotation of the slat angle changing shaft 80. The swing support member 67 is provided with a swing pin 68 at the lower end thereof, which serves as the swing center of the swing member 70. The swing pin 68 is provided in parallel with the input shaft 62 of the gear box 61.

The rocking member 70 is a first member that engages with the gear 66.
The engaging portion 71 has a claw 72 and a second claw 73, and a swinging portion 75 attached to the lower end of the engaging portion 71. The engaging portion 71 is swingably attached to the swing pin 68 of the swing support member 67 in a plane parallel to the slat angle changing shaft 80. First claw 72
The second claw 73 and the second claw 73 are formed so that when the engaging portion 71 tilts to either one of the swing pins 68, only one of the claws engages with the spur gear 66. There is. The swinging portion 75 is attached to the lower end of the engaging portion 71 so as to swing in a plane perpendicular to the slat angle changing shaft 80. A ring 76, through which the other end 2b of the lifting cord 2 is inserted, is provided at the lower end of the swinging portion 75.

In this embodiment, the ladder cord 7 constitutes the slat support member, and the operation changing mechanism is the drum 8
1, a slat angle changing shaft 80, and a swing-rotation changing mechanism 6
It is composed of 0 and. Further, the moving side holding member is constituted by the rolling roller 14, and the fixed side holding member is constituted by the fixed side roller. The interlocking member is composed of the roller pin 15, and the circulating motion guide member is composed of the hook member 20.

Next, the operation of the blind device of this embodiment will be described. First, the raising / lowering operation of the blind device will be described with reference to FIGS. 8 to 12. As shown in FIG. 8, when the rolling roller 14 is located at one stroke end of its stroke, that is, at the lifting code holding position, the lifting code 2 is moved by the fixed roller 13 and the rolling roller 1.
4 and the slat 4 and the bottom rail 3 are constrained so that they cannot descend.

When the operator pulls down the other end 2b of the lifting cord 2 from this state, as shown in FIG. 9, the lifting cord 2 is pressed against the lifting cord 2 as the lifting cord 2 moves in the rail rising direction A. The rolling roller 14 moves toward the other stroke end side, the roller pin 15 of the rolling roller 14 contacts the pin restraining direction path 27 of the hook member 20, and the tip end side of the hook member 20 swings upward. When the other end 2b of the lifting cord 2 is further pulled down, as shown in FIG.
Even if the rolling roller 14 reaches the other stroke end and the lifting cord 2 moves, the lifting cord 2 moves the rolling roller 1
Just slide on the surface of 4 and it will not move.

After the rolling roller 14 reaches the other stroke end, the pulling force for the other end 2b of the lifting cord 2 is released,
When the slat 4 and the bottom rail 3 start to descend due to their own weight, the slat 4 is pulled by the slat 4 and the bottom cord 3, and the lifting cord 2 also moves in the rail descending direction B. At this time, as shown in FIG. 11, the rolling roller 14 slightly rolls in one stroke end direction along with the rail descending direction B of the lifting cord 2, but the roller pin 15 moves and the hook member 20 moves downward. The rocking of the roller pin 15 engages with the restraint portion 26 of the hook member 20, and the rolling roller 14 cannot roll to the one stroke end side from here. That is, the rolling roller 14 is restrained at the elevating cord free position,
Does not move to one stroke end side even when the rail moves in the rail descending direction B, and the lifting cord 2 is not pinched. Therefore, the slats 4 and the bottom rails 3
Re-strengthens the other end 2b of the lifting cord 2 with a strong force (slat 4
And the force of overcoming the own weight of the bottom rail 3), or lowering is continued until the lowering limit is reached.

The bottom rail 3 descends to the desired position,
Again, if the other end 2b of the lifting cord 2 is pulled down slightly,
As shown in FIG. 12, the roller pin 15 and the hook member 2
With a slight movement of 0, the roller pin 15 is disengaged from the restraint portion 26 of the hook member 20 and reaches the roller pin escape portion 28. When the lifting cord 2 is released, the slat 4 and the bottom rail 3 are slightly lowered, and along with this, the roller pin 15 of the rolling roller 14 follows the pin restraint release direction path 29, while the rolling roller 14 Move to the stroke end side. When the rolling roller 14 reaches one stroke end, the elevating cord 2 is clamped between the fixed roller 13 and the slat 4 and the bottom rail are constrained so that they cannot descend. What is important here is that the roller pin 15 is reliably guided to the pin restraint release direction path 29 by the roller pin escape portion 28 when the lifting cord 2 is released. This is because if the roller pin 15 relatively moves from the restraint portion 26 to the pin restraining direction path 27 when the lifting cord 2 is released, the roller pin 15 again engages with the restraint portion 26 and the rolling roller 14 This is because the restraint of may not be released.

When stopping the bottom rail 3 at a desired position, it is necessary to slightly pull down the other end 2b of the elevating cord 2 again, but this operation causes the roller pin 15 of the restraint portion 26 to escape from the roller pin. Since it is for guiding to the portion 28, the movement amount thereof may be small, and in reality, the operator loosens the force of pulling the other end 2b of the elevating cord 2, and the slat 4 and the bottom rail 3 are at the target positions. It feels as if the movement of the lifting cord 2 is stopped so that the descent is stopped when the descent is stopped. Therefore, the operation for lowering the slat 4 and the bottom rail 3 from a predetermined position to a target position is to lower the other end 2b of the lifting cord 2 and then loosen it once so that the bottom rail 3 etc. It is sufficient to stop the movement of the elevating cord 2 in the rail descending direction B when it descends.

In order to raise the bottom rail 3 or the like which is constrained so that it cannot descend, to the target position, after performing the operation described with reference to FIGS. 8 to 11, the bottom rail 3 or the like is moved to the target position. The other end 2b of the lifting cord 2 until it rises to
If the other end 2b of the elevating cord 2 is released after that, the state shown in FIG. 8 is reestablished via the state shown in FIG.

When raising the bottom rail 3 and the like, it is necessary to pull the elevating cord 2 to move the rolling roller 14 from one stroke end to the other stroke end in the process of releasing the downward restraint. Therefore, if the bottom rail 3 is constrained so as not to be lowered at the uppermost position, the other end 2b of the lifting cord 2 may be pulled down in order to move the rolling roller 14 from one stroke end to the other stroke end. , The lifting cord 2 cannot be pulled down further. Therefore, in order to deal with such a situation, as shown in FIG.
Is attached to the bottom rail 3 via the spring 9, so that the other end 2b of the lifting cord 2 can be pulled down to some extent even when the bottom rail 3 is restrained at the uppermost position, and the bottom rail 3 is lowered. I am able to release the restraint.

Next, the slat inclination angle changing operation of the blind device of this embodiment will be described. 1 and 2
The other end 2b of the lifting cord 2 is gripped from the state (hereinafter, referred to as a neutral state) as shown in FIG.
Rocks in the direction. By this swing operation, the swing member 70
Swings around the swing pin 68 of the swing support member 67 as the swing center. In this swinging process, the second pawl 7 of the swinging member 70 is
3 engages with the spur gear 68 to rotate the input shaft 62 of the gear box 61 together with the spur gear 68. The rotation of the input shaft 62 causes the slat angle changing shaft 80 to rotate. When the slat angle changing shaft 80 rotates and the drum 81 also rotates, one vertical cord 7b of the ladder cord 7 rises and the other vertical cord 7a descends, and the horizontal cords 7a, 7a, ...
Is tilted, and the tilt angles of the slats 4, 4, ... Supported by the lateral cords 7a, 7a ,. Slats 4,
When 4, ... reaches the target tilt angle, the lifting cord 2
Separate the other end 2b of the. In this embodiment, the lifting cord 2
So that the input shaft 62 rotates by swinging the other end 2b of the
The gear ratio of the gear box 61 is reduced to reduce the torque required to rotate the input shaft 62. Therefore, when the amount of change in the slant tilt angle is large, the lifting cord 2
It is necessary to repeat the rocking operation of. However,
This repeated swing must be performed from the neutral state to a predetermined position in one swing direction. When the operator releases the other end 2b of the lifting cord 2, the swing member 70 swings by its own weight and returns to the initial state. Second of swing member 70
The claws of the above are separated from the gear 66 during this swinging process. In the slats 4, 4, ... With different tilt angles, the bearing 65 of the slat angle changing shaft 80 is provided with the resistance member as described above, so that the other end 2b of the lifting cord 2 swings again. Unless the input shaft 62 is moved and the input shaft 62 is rotated, the slats 4, 4, ...

When the other end 2b of the lifting cord 2 is swung in the direction opposite to the R direction shown in FIG. 7, the first claw 72 of the swing member 70 is engaged with the spur gear 66 this time. Spur gear 6
6 and the input shaft rotate in the opposite direction to the previous one, and the slat 4,
4, ... inclines in the opposite direction.

In the swing operation as described above, the operator usually swings while pulling the other end 2b of the lifting cord 2 toward the front side (operator side). Therefore, in the present embodiment, in order to cope with such an operation, the swing portion 75 of the swing member 70 is attached to the engaging portion 71, and the slat changing shaft 8 is provided.
It is mounted so that it can swing in a plane perpendicular to 0, and the swing portion 75 swings including a swing component in a plane parallel to the slat changing shaft 80 and a swing component in a vertical plane. Also,
The engaging portion 71 is adapted to swing in a plane parallel to the slat changing shaft 80.

As described above, in this embodiment, when the downward restraint of the bottom rail 3 or the like is released, the other end 2b of the raising / lowering cord 2 may be pulled down similarly to the raising operation of the bottom rail 3 or the like. It is possible to improve operability regarding operation. Further, in both the lifting operation and the slat inclination angle changing operation, it is sufficient to grasp the other end 2b of the lifting cord 2 and operate only this, so that the usability can be improved. Further, when the slat 4 is moved up and down, a vertical movement of the lifting cord 2 is performed, and when the slant angle of the slat 4 is changed, a swinging motion of changing the inclination angle of the lifting cord 2 may be performed. The operation corresponds to the operation, and it is ergonomically easy for the operator to grasp the operation operation, and the usability can be greatly improved.

Next, a second embodiment of the angle adjusting device for a blind device according to the present invention will be described with reference to FIG. In this embodiment, the input shaft 6 of the gearbox 60 is
The swing member 70a is directly attached to 2a. Thus, even if the swinging member 70a is directly attached to the input shaft 62a, basically, by swinging the other end 2b of the lifting cord 2, the input shaft 62a rotates and the slat angle changing shaft 80. Since it rotates, the same effect as that of the first embodiment can be obtained with a simple structure. However, in the case of this embodiment, when the tilt angle of the slat 4 is changed, the swing member 70 is changed.
a is maintained in an angle state corresponding to this tilt angle, that is, even if the lifting cord 2 is released after the lifting cord 2 is rocked, the rocking member 70a remains tilted, which is not preferable in appearance.

Although the worm 63 and the wheel 64 are provided in the gear box 61 in both the present embodiment and the first embodiment, the present invention is not limited to this. Anything can be used as long as the rotation of the input shaft 62 can be changed to the rotation of the slat angle changing shaft 80 provided perpendicularly thereto. For example, a bevel gear or the like may be used.

Next, with reference to FIGS. 14 and 15, a second embodiment relating to the lifting device for the blind device according to the present invention will be described.
Will be explained. This embodiment is different from the first embodiment in configuration of the lifting amount adjusting block 10, the rolling roller 14 and the like, and other members such as the hook member 20 are the same as those in the first embodiment.

The plug member 36, which constitutes the moving-side holding member of this embodiment, has a barrel shape in which the diameter on both ends is smaller than the diameter of the central portion, and a pin 37 is projectingly provided on the central portion. There is. The lifting amount adjustment block 30 has a space 31 formed therein, in which the plug member 36 can reciprocate and the lifting cord 2 can be inserted. Lift amount adjustment block 30
The pin 37 of the stopper member 36 is fitted into the stopper member 36,
Reciprocating movement regulating groove 3 for regulating the stroke amount of reciprocating movement of
5 is formed. The space 32 on one end side of the lifting amount adjusting block 30 is reduced in diameter so that the lifting cord 2 can be held between the lifting member 2 and the plug member 36 when the plug member 36 is at one stroke end. ing. That is, the elevation adjustment block of this embodiment plays the roles of the elevation adjustment block 10 and the fixed roller 13 of the first embodiment. Space 33 on the other end side of the lifting amount adjustment block 30
An elevating cord guide member 34 for press-contacting the elevating cord 2 to the stopper member 36 is provided therein. Plug member 36
Similarly to the first embodiment, the tip of the pin 37 engages with the hook member 20 during the reciprocating movement of the plug member 36.

Also in the above-mentioned structure, the basic operation is similar to that of the first embodiment, and substantially the same effect can be obtained. That is, the moving-side holding member and the fixed-side holding member do not have to be rollers as in the first embodiment, and the moving-side holding member moves to hold the lifting cord 2 between the moving-side holding member and the fixed-side holding member. Any shape is possible as long as it is possible. 14 and 15 show a state in which the plug member 36 is located at the lifting cord free position where the lifting cord 2 can freely move.

Next, with reference to FIGS. 16 to 18, a third embodiment of the lifting device for the blind device will be described. In this embodiment, the circulation motion guide member (hook member 20) and the interlocking member (roller pin 15) in the first embodiment are used.
The configuration is changed, and other configurations are similar to those of the first embodiment.

As shown in FIG. 16, a U-shaped swing pin (interlocking member) 47 is swingably attached to the center axis of rotation of the rolling roller 14. The circular motion guide member 40 is formed with a heart-shaped circular motion guide groove 41 with which the tip of the swing pin 47 is engaged. A magnet 49 is provided on the block 10 side of the circulating motion guide member 40 so that the tip of the swing pin 47 always contacts the groove bottom of the guide groove 41. In the circulation motion guide groove 41, the rolling roller 1
When 4 moves from one stroke end to immediately before the other stroke end, the pin restraining direction path 42 with which the tip end of the swing pin 47 engages and the rolling roller 14 reach the other stroke end. A first end portion 43 that is engaged with the rolling roller 1, a restraining portion 44 that restrains the rolling roller 14 from moving toward one stroke end, and a rolling roller 1.
The second end portion 45, which is engaged when 4 reaches the other stroke end from the restraint state, and the constraint, which is engaged when the rolling roller 14 moves from the other stroke end to just before one stroke end. Release direction path 46,
have. As shown in FIG. 17, these portions of the circulation movement guide groove 41 have different groove depths, and the tip end of the swing pin 47 biased toward the groove bottom is located inside the circulation movement guide groove 41. Are always circulated in the same direction, and cannot be circulated in the opposite direction. Note that FIG. 17 shows a cross section along the groove 41 of the circulation motion guide member 40.

Next, the operation of this embodiment will be described.
As shown in FIG. 18, when the rolling roller 14 is located at one stroke end of its stroke, that is, at the lifting code holding position, the lifting code 2 moves toward the fixed roller 1.
The slat 4 is held between the roller 3 and the rolling roller 14.
Also, the bottom rail 3 is constrained so that it cannot descend. At this time, the tip of the swing pin 47 is engaged with the end of the pin restraining direction path 42.

From this state, when the operator pulls down the other end 2b of the elevating cord 2 and moves the elevating cord 2 in the rail ascending direction A, the rolling roller 14 in pressure contact with the elevating cord 2 has the other stroke end. The tip end of the swing pin 47 moves along the pin restraining direction path 42 toward the first end portion 43. The other end 2b of the lifting cord 2
Is further lowered, the rolling roller 14 reaches the other stroke end, the tip end of the swing pin 47 engages with the first end portion 43, and even if the lifting cord 2 moves, the lifting cord 2 rolls. It does not move simply by sliding on the surface of the moving roller 14.

After the rolling roller 14 reaches the other stroke end, the pulling force for the other end 2b of the lifting cord 2 is released,
When the slat 4 and the bottom rail 3 start to descend due to their own weight, the slat 4 is pulled by the slat 4 and the bottom cord 3, and the lifting cord 2 also moves in the rail descending direction B. At this time, the rolling roller 14 also slightly moves in one stroke end direction with the rail descending direction B of the lifting cord 2, but due to the movement of the tip end portion of the swing pin 47 due to the movement of the rolling roller 14, Since the tip end of the rocking pin 47 engages with the restraint portion 44 of the circulation motion guide groove 41, the rolling roller 14 cannot move to one stroke end side from here. That is, the rolling roller 14
Is restricted to the elevating cord free position, and even if the elevating cord 2 moves in the rail descending direction B, it does not move to one stroke end side, and the elevating cord 2 cannot be held. Therefore, the slats 4 and the bottom rails 3 are
The other end 2b of the elevating cord 2 is pulled down again or continues to descend until reaching the descent limit.

The bottom rail 3 descends to the desired position,
Again, if the other end 2b of the lifting cord 2 is pulled down slightly,
The oscillating pin 47 moves slightly to cause the circular motion guide groove 4 to move.
It comes off from the first restraint portion 44 and reaches the second end portion 45.
At this time, as shown in FIG. 17, the groove bottom of the restraint portion 44 is lower than the groove bottom of the first end portion 43 and the second end portion 45.
Rocking pin 4 is biased toward the groove bottom because it is higher than
The tip portion of 7 does not move from the restraint portion 44 to the first end portion 43, but certainly moves to the second end portion 45. When the lifting cord 2 is released, the slats 4 and the bottom rail 3 are slightly lowered, the lifting cord 2 is moved in the rail lowering direction B, and the swing pin 47 of the rolling roller 14 is pin-restricted accordingly. The rolling roller 14 rolls to one stroke end side along the release direction path 46. When the rolling roller 14 reaches one stroke end, the elevating cord 2 is clamped between the fixed roller 13 and the slat 4 and the bottom rail are constrained so that they cannot descend.

As described above, in this embodiment, the swing pin 47 is used.
The front end of the roller pin engages with the circulation motion guide groove 41 and circulates there, thereby restricting the reciprocating movement of the rolling roller 14, and the roller pin 1 in the first embodiment.
5 is replaced with the swing pin 47, and the hook member 20 is replaced with the circulation motion guide member 40.
It is similar to the first embodiment. Therefore, the same effects as those of the first embodiment can be obtained. As described above, the interlocking member and the circulation motion guide member are not limited to those of the first embodiment, and various shapes can be considered.

[0053]

According to the present invention, it is possible to improve the usability because it is sufficient to operate the lifting cord both during the lifting operation of the slat and the tilt angle changing operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a blind device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the angle adjusting device according to the first embodiment of the present invention.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is an overall perspective view of a lifting device according to a first embodiment of the present invention.

FIG. 5 is a perspective view of the hook member according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the rolling roller according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an operation of the angle adjusting device according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing the operation of the lifting device according to the first embodiment of the present invention.

FIG. 9 is an explanatory diagram showing the operation of the lifting device according to the first embodiment of the present invention.

FIG. 10 is an explanatory diagram showing the operation of the lifting device according to the first embodiment of the present invention.

FIG. 11 is an explanatory diagram showing the operation of the lifting device according to the first embodiment of the present invention.

FIG. 12 is an explanatory diagram showing the operation of the lifting device according to the first embodiment of the present invention.

FIG. 13 is a perspective view of a main part of a second embodiment of the angle adjusting device according to the present invention.

FIG. 14 is an overall perspective view of a second embodiment of a lifting device according to the present invention.

FIG. 15 is a sectional view of a second embodiment of the lifting device according to the present invention.

FIG. 16 is an overall perspective view of a third embodiment of a lifting device according to the present invention.

FIG. 17 is a sectional view of a circulating motion guide member of a third embodiment of the lifting device according to the present invention.

FIG. 18 is a side view of a third embodiment of the lifting device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Top box, 2 ... Elevating cord, 2a ... One end of (elevating cord), 2b ... Other end of (elevating cord), 3 ... Bottom rail, 4 ... Slat, 7 ... Ladder cord, 9 ... Spring, 10,30 ... Lifting / lowering amount adjustment block, 11 ... Rack, 11b ... Sliding surface, 13 ... Fixed side roller (fixed side holding member), 14 ... Rolling roller (moving side holding member), 15 ...
Roller pin (interlocking member), 16, 35 ... Reciprocating movement regulating groove, 17 ... Elevating cord guide roller (elevating cord guide member), 20 ... Hook member (circulation movement guide member), 2
2 ... Spring, 25 ... Circulation movement guide path, 26, 44 ... Restraint part, 36 ... Plug member, 37 ... Pin, 40 ... Circulation movement guide member, 41 ... Circulation movement guide groove, 47 ... Oscillating pin, 4
9 ... Magnet, 60 ... Oscillation-rotation conversion mechanism, 61 ... Gear box, 62, 62a ... Input shaft, 63 ... Worm, 64 ...
Wheels, 66 ... Spur gears, 67 ... Swing support members, 68 ...
Rocking pin, 70, 70a ... rocking member, 72 ... first claw,
73 ... second claw, 76 ... ring, 80 ... slat angle changing shaft, 81 ... drum.

Claims (5)

[Claims] 1. A top box, a bottom rail, a plurality of slats arranged between the top box and the bottom rail, both end sides hanging down from the top box, and one end of which is attached to the bottom rail. In a blind device including a lifting cord that is raised and a lifting mechanism that raises a plurality of the slats when the other end of the lifting cord is pulled, the other end of the lifting cord that hangs from the top box is rocked. A swing member that swings with this swing; a slat support member that supports the plurality of slats and that changes a tilt angle of the plurality of supported slats by a predetermined motion of the slats; And a motion conversion mechanism for causing the slat support member to perform the predetermined operation by the rocking motion of the rocking member. Indian equipment. 2. A top box, a bottom rail, a plurality of slats arranged between the top box and the bottom rail, both ends hanging down from the top box, and one end of which is attached to the bottom rail. A blind device comprising a lifting cord and a lifting mechanism that raises a plurality of the slats when the other end of the lifting cord is pulled, wherein the slats are arranged in the top box in parallel with the longitudinal direction thereof. An angle changing shaft, and a tubular member fixed to the slat angle changing shaft around the slat angle changing shaft as a central axis, forming a ladder shape, the upper end of which is attached to the cylindrical member. And a lower end portion thereof is attached to the bottom rail and a lateral cord thereof supports a plurality of the slats, and a ladder cord hangs down from the top box. When the other end of the hanging elevating cord is swung, the swing member that swings with this swing and the swing motion of the swing member rotate the slat angle changing shaft. A blind device comprising: a swing-rotation conversion mechanism. 3. A top box, a bottom rail, a plurality of slats arranged between the top box and the bottom rail, both ends hanging down from the top box, and one end of which is attached to the bottom rail. In a blind device having a lifting cord that is raised and a lifting mechanism that raises a plurality of the slats by pulling the other end of the lifting cord, a slat angle change arranged in the top box in parallel with the longitudinal direction thereof. Shaft, a cylindrical member fixed to the slat angle changing shaft as a central axis, and a ladder-like member, the upper end of which is attached to the cylindrical member, The lower end portion is attached to the bottom rail, and a ladder cord that supports the plurality of slats by the lateral cord thereof and a shaft for changing the slat angle is used. When the input shaft is rotated at a substantially right angle and extends in the horizontal direction,
A mechanism for rotating the shaft for changing the slat angle; a gear provided on the input shaft of the mechanism; and a swing member provided below the gear so that its upper and lower ends are swingable. The lower end of the swinging member is provided with a connecting tool that is connected to a part of the other end of the lifting cord so that the other end of the lifting cord hanging from the top box can move up and down relatively. The upper end of the rocking member is provided with a first pawl that engages with the gear when the rocking member rocks in one of the rocking directions of the rocking member and the rocking member in the other. A blind device, wherein a second pawl that engages with the gear when the moving member swings is formed. 4. The elevating mechanism includes a movable side holding member arranged so as to be capable of reciprocating in a longitudinal direction of the top box with a predetermined stroke, and the movable side holding member at one stroke end of the stroke. The lifting cord between the fixed side holding member for holding the bottom cord so that the bottom rail cannot be lowered, and the moving side holding member moves along with the movement of the lifting cord. In a reciprocating process of a part of the interlocking member by reciprocal movement of the moving side holding member, an elevating cord guide member that is brought into pressure contact with the holding member, an interlocking member a part of which is attached to the moving side holding member, A circular motion guide member that causes another part of the interlocking member to perform a relative cyclic motion having a reciprocating movement direction component of the moving-side holding member. In order to restrain the movable side holding member on the other stroke end side of the stroke so as not to move in the one stroke end direction,
The restraint part which restrains said another part of said interlocking member is formed, The blind device according to claim 1, 2 or 3 characterized by things. 5. A blind device for changing an inclination angle of a plurality of slats arranged between a top box and a bottom rail, wherein the blind device is rotatably arranged in the top box in parallel with a longitudinal direction thereof. A slat angle changing shaft, a slat supporting member that supports a plurality of the slats, and that changes the tilt angle of the plurality of supporting slats according to the rotation of the slat angle changing shaft, and a slat angle changing device. Having an input shaft extending substantially at right angles to the axis and extending in the horizontal direction, when the input shaft is rotated,
A mechanism for rotating the shaft for changing the slat angle; a gear fixed to the input shaft of the mechanism; and a swing member provided below the gear so that its upper and lower ends are swingable. The upper end of the swing member has a first pawl that engages the gear when the swing member swings in one of the swing directions of the swing member, and the other swings in the swing direction of the swing member. A blind device, wherein a second pawl that engages with the gear when the member swings is formed.