JPH06200686A - Lifting cord stopper of blind - Google Patents

Abstract

PURPOSE:To fix slats or unfix them at a specified level, by pulling the control part of a lifting cord. CONSTITUTION:A lifting cord stopper is equipped in a head box and a holding member 13 and a holding roller 14 to fix the lifting cord by fastening are equipped in the cord stopper. The shaft 16 of the holding roller is fitted to a changeover member 15 having a hook 17. The position of the holding roller is changed over when pulling the lifting cord and also loosening it. When raising up the slat, the slat is stopped at a required position and when lowering down it, the stopper is released by pulling the lifting cord a little to lower the slat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supports a plurality of slats horizontally with a vertical distance from each other by a ladder cord suspended from a head boss, and a bottom rail disposed at the bottom of these slats. At least two lifting cords attached to the head box are guided upward through the group of slats and introduced into the head box, and horizontally guided near the one end of the head box in the head box, and outside the head box. And then vertically hang down to form the operation part of the lifting code.
A blind in which a group of slats is pulled up by pulling down the elevating code operating portion, and the slat is lowered by loosening the elevating cord operating portion, and particularly such a blind. In the above, it relates to a lifting code stopper device for stopping the slats at a desired height.

[0002]

2. Description of the Related Art Conventionally, in this type of blind,
Pull the operating part of the lifting code downward, and when the blind slats reach the desired height, swing the operating part of the lifting code to the right or left to stop the upper end of the lifting code operating part. , The stopper is actuated as the lifting code moves upward, and the lifting code is tightened to stop the movement of the lifting code, thereby stopping the slat at a desired height. This structure is commonly used. When lowering the slats, the operating portion of the lifting code is swung in the opposite direction to the left or right to release the stopper, and the slats are lowered by their own weight.

In any case, in the conventional blind, it is necessary to lock or unlock the lifting code by swinging the operating portion of the lifting code to the left or right. Depending on the location, walls or other obstructions may prevent successful locking or unlocking of the lifting code.

[0004]

SUMMARY OF THE INVENTION According to the present invention, when the blind is raised, the operating part of the lifting code is pulled down, and when the blind reaches a desired height, the operating part of the lifting code is released. Stops at the desired position, and when lowering the blind, the operation part of the lifting code is slightly pulled down to release the lifting code from the stopper and the blind is freed by the weight of the slats. SUMMARY OF THE INVENTION It is an object of the present invention to provide a blind elevating / lowering code stopper device that is lowered.

[0005]

As a means for solving the above-mentioned problems, the present invention supports a plurality of slats horizontally at a vertical interval with a ladder cord suspended from a head boss, At least two lifting cords attached to a bottom rail arranged at the bottom of these slat groups are guided upward through the slat group and introduced into the head box, and the head is set in the head box. Guide it horizontally to the vicinity of one end of the box, draw it out of the head box, and hang it vertically to form the operating part of the lifting code, and pull the slats group by pulling the operating part of the lifting code downward. Also, in a blind in which the slats are lowered by their own weight by loosening the lifting cord operating section, in order to stop the slats at a desired height, the head box described above is used. Is provided with a lifting code stopper device configured to lock or unlock the lifting code each time the lifting code operating portion is pulled or loosened. The device comprises a stopper case through which an elevating code passes substantially horizontally, and a holding member formed on the upper side of the end of the stopper case on the side connected to the bottom rail of the elevating code. And, as the lifting code moves due to the weight of the slat, it rolls on the bottom surface of the stopper case, and the lifting code is provided between the end of the stopper case and the holding member. A holding roller that tightens to stop the movement of the lifting cord and a holding roller that engages with the holding roller and that moves with the movement of the lifting cord due to the weight of the slat. A switching member for stopping rolling, and the switching member is provided with an elevating coil due to the weight of the slat. Pinched by the movement of mud - la - are 該挾 Giro when rolling - La - axis to form a hook portion for receiving the, 該切 switching member is the stopper - Ke -
It is arranged slidably up and down with respect to the upper and lower parts, and when pulling up and down the cord operation part on the lower side of the hook part, the shaft of the holding roller works to push up the switching member. A first guide surface is formed, and when the holding roller rolls by the movement of the lifting code due to the weight of the slat, the shaft of the holding roller is formed above the hook portion. A second guide surface is formed, which acts to push down the switching member by hitting the holding roller.
There is provided an elevation code stopper device for a blind, characterized in that it passes over the hook portion.

In a preferred embodiment of the present invention, the bottom of the stopper case of the lifting cord stopper device is formed with a knurl, and the holding roller is engaged with the knurl. And a rolling roller having a rolling knurl.

It is preferable that the bottom surface of the stopper case has an inclined surface that is inclined upward toward the end of the stopper case on which the holding member is formed.

[0008]

In the blind lifting / lowering code stopper device of the present invention, the blind lifting / lowering operation can be performed only by pulling the operating portion of the lifting / lowering code up and down.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below.

FIG. 1 shows a first embodiment of a blind according to the present invention. In the figure, 1 is a head box, and 2 is a ladder code suspended from this head box. Ladder
The upper end of the blade is hung on a rotary drum 4 attached to a rotary shaft 3 arranged in the head box. A plurality of slats 5 are horizontally supported by the ladder code 2 with a vertical interval. The rotary shaft 3 is rotated from the rotary operation rod 6 via the rotation transmission mechanism 7, and further rotates the slat 5 via the ladder code 2.

At least two lifting cords 8 attached to a bottom rail (not shown) arranged at the bottom of the slat group are guided upward through the slat group to be inserted into the head box 1. It is introduced and guided horizontally in the head box to the vicinity of one end of the head box, goes out of the head box, and vertically hangs down to form an elevating / lowering cord operating portion 9, and a knob 10 is attached to the lower end thereof. ing.

In this blind, the slat group is pulled up by pulling the raising / lowering code operating section 9 downward, and the slat is lowered by its own weight by loosening the operating code operating section.

According to the present invention, in order to stop the slat at a desired position, an elevating coil is installed in the head box 1.
An elevating code stopper device 11 is provided which is configured to lock or unlock the lifting code each time the door operating portion 9 is pulled or loosened.

The elevating code stopper device 11 has a stopper case 12 through which the elevating code passes substantially horizontally, and a stopper case on the side of the elevating code connected to the bottom rail. A holding member 13 is formed on the upper side of the end portion of the sleeve.

As the lifting code 9 is moved by the weight of the slat, it rolls on the bottom surface of the stopper case, and the lifting cord is lifted between the end of the stopper case and the holding member 13. Do 9
A holding roller 14 is provided to lock the wheel so that it cannot move any more.

In the preferred embodiment, the bottom surface of the case 12 is formed with a knurling, and the holding roller 14 is formed as a knurled roller which engages with the knurling, and also the case. The bottom surface of the cloth is formed as an inclined surface 12a inclined upward toward the holding member 13.

Further, there is provided a switching member 15 for stopping the rolling of the holding roller 14 due to the movement of the lifting code due to the weight of the slat. The switching member 15 is provided with a shaft 16 of the holding roller 14 when the holding roller 14 rolls toward the holding member 13 by the movement of the lifting code due to the weight of the slats. A hook 17 for receiving and stopping the movement of the holding roller is integrally formed.

The switching member 15 is a stopper case 12
It is slidably arranged in the vertical direction, and is elastically held at a neutral position by a leaf spring 18 as shown in FIG.

The lower side of the hook portion 17 is contacted by the shaft 16 of the gripping roller 14 when pulling the lifting code operating portion, so that the first guide surface 17A serves to push up the switching member. The shaft 16 of the holding roller 15 is formed on the upper side of the hook when the holding roller rolls by the movement of the lifting code due to the weight of the slats. A second guide surface 17B is formed which acts to push down the switching member.

The operation of the device of the present invention will be described below with reference to FIG.

In FIG. 6 (a), the lifting code is pulled to the right by the weight of the slat, and the holding member 13 and the holding roller 14 are held.
It shows a state in which the raising and lowering cord 9 is locked between and, and the blind is stopped. The holding member 13 shown in FIG. 6 is shown as a fixed roller. From this state, when the lifting cord is pulled slightly to the left, the holding roller 14 rolls on the bottom surface of the case 12 ((B) in FIG. 6), and the holding roller moves. Move to the left. At this time, the shaft 16 of the holding roller hits the first guide surface 17A of the hook portion 17 to push up the hook portion 17 and enter the lower side thereof. If you stop pulling the lifting cord,
The shaft 16 engages with the recess of the hook 17, and the lifting code is released from the lock ((c) of FIG. 6), so that the slats can be lowered.

This allows the blind to be lowered to the lowest position.

Next, when raising the blind,
When the cord is pulled to the left ((d) in FIG. 6), the shaft 16 moves out of the recess of the hook and moves to the left, and the shaft 16 is completely disengaged from the hook. If the elevating code is continued to be pulled and the elevating code is returned when the blind reaches an appropriate position or the highest position, the shaft 16 passes over the hook portion 17 and the second guide surface 17B.
The hook part is pushed to the right by pushing the hook part downwards, and the holding roller 14 moves to the upper right on the inclined surface 12a and returns to the state shown in (a) of FIG. 6, whereby the blind is moved to the desired height. Can be stopped by.

FIG. 7 shows a second embodiment of the present invention.

In the figure, parts common to those of the first embodiment are designated by the same reference numerals. In this embodiment, the rotation operating rod 20 for rotating the slat 5 is formed of a hollow cylindrical body, and the upper end of the rotation operating rod 20 is connected to a hollow worm gear 22a of a rotation transmission mechanism 22 via a hollow universal joint 21. It is connected.

The elevating code 8 led out from the elevating code stopper device 11 to the left in FIG. 7 is a guide roller pivotally supported above the hollow worm gear 22a of the rotation transmitting mechanism 22.
The rotary operation rod 20 is inserted through the hollow worm gear 22a through the hollow universal joint 21.
Is pulled out downward from the lower opening to become a lifting code operating section 9, and a knob 10 is attached to the end thereof.

In order to rotate the slat, the rotary operation rod 20 is rotated, and the slat is raised and lowered by pulling down the elevation code operating portion 9 which hangs down the rotation operation rod 20, and is raised and lowered by the stopper device 11. This is done by releasing the engagement of the cord.

[0028]

According to the present invention, the lifting code can be locked or unlocked by simply pulling the operating portion of the lifting code downward, and the lifting code can be locked as in the conventional case. It is not necessary to swing the operating portion of the door to the left or right, and the lifting operation can be easily performed.

Further, since the stopper device is not arranged at the place where the elevating code is led out from the head box,
Only the opening through which the lifting code is inserted is provided, and the opening can be made very small, and the design is excellent.

Particularly, the rotation operating rod is formed of a hollow cylinder, and the upper end of the rotation operating rod is connected to the hollow worm gear of the rotation transmitting mechanism through a hollow universal joint, and the elevating code is a hollow worm gear. , A hollow universal joint and a rotary operating rod, which are sequentially inserted and led out from the lower opening of the rotary operating rod, when raising and lowering the slat, pull the operating part of the elevator code to pull the head. Since the lifting code is always held by hand in order to lock or unlock the lifting code by the stopper placed in the box, this is a problem in the conventional operation method. That is, when the stopper-release grip provided at the bottom of the rotary operation rod is operated with one hand to release the stopper built into the rotary operation rod, the other hand does not necessarily press the lifting code. When Rats one hand can perform the elevating operation can be prevented to become a cause of or failure is dangerous to fall at once, operability is very excellent design.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a blind according to the present invention.

FIG. 2 is a perspective view of a lifting code stopper device according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a partially cutaway perspective view of a lifting code stopper device.

6 (a), (b), (c), (d), (e), and (f) are explanatory views for explaining the operation of the device of the present invention.

FIG. 7 is a front view showing a second embodiment of the blind according to the present invention.

[Explanation of symbols]

 1: Head Box 2: Ladder Code 3: Rotating Shaft 4: Rotating Drum 5: Slat 6: Rotation Operating Rod 7: Rotation Transmission Mechanism 8: Lifting Code 9: Lifting Code Operating Unit 10: Knob 11 : Lifting code stopper device 12: Stopper case 13: Holding member 14: Holding roller 15: Switching member 16: Shaft 17: Hook part

Claims (4)

[Claims] 1. A bottom rail which is supported at the bottom of these slats by horizontally supporting a plurality of slats vertically spaced by a ladder cord suspended from a head boss.
At least two lifting cords attached to the head are guided upward through the group of slats and introduced into the headbox, and horizontally guided in the headbox to the vicinity of one end of the headbox. It is led out to the outside and vertically hung down to form an operating part for the lifting code, and the lifting code operating part is pulled downward to pull up the slat group, and
In a blind in which the slats are lowered by their own weight by loosening the lifting code operating section, the lifting code operating section is pulled into the head box in order to stop the slats at a desired height. An elevating code stopper device configured to lock or unlock the elevating code each time it is loosened or loosened is provided, and the elevating code is substantially horizontal. The stopper case that passes through, the holding member formed on the upper side of the end portion of the stopper case on the side connected to the bottom rail of the lifting code, and the lifting code by the weight of the slat. Along with the movement, it rolls on the bottom surface of the stopper case, and the elevating cord is tightened between the end of the stopper case and the holding member to stop the movement of the elevating cord. Holding a Roller
And a switching member that engages with the holding roller and stops rolling of the holding roller with the movement of the lifting code due to the weight of the slat described above. Forming a hook portion for receiving the shaft of the holding roller when the holding roller rolls due to the movement of the lifting code due to the weight of the slat, and the switching member serves as the stopper case. -It is arranged so as to be slidable up and down with respect to the shoe, and an elevating coil is provided below the hook.
When pulling the door operation part, a first guide surface is formed which works to push up the switching member by hitting the shaft of the holding roller, and above the hook part, an elevating coil by the weight of the slat described above is formed. −
When the holding roller rolls due to the movement of the guide roller, the holding roller forms a second guide surface that abuts against the shaft of the holding roller to push down the switching member. -Elevating code stopper device for blinds, characterized in that-passes over the hook portion. 2. A knurling is formed on the bottom surface of the stopper case of the lifting code stopper device, and the holding roller has a knurling for engaging with the knurling. 2. A blind cord lifting / lowering stopper device according to claim 1, wherein the blind roller stopper has a knurled roller. 3. The bottom surface of the stopper case has an inclined surface which is inclined upward toward the end of the stopper case on which the holding member is formed. Item 2. Blind lift code stopper
apparatus. 4. The headbox according to claim 1, wherein at least two lifting cords attached to the bottom rail are guided upward through a group of slats and introduced into the headbox. Through an elevating code stopper device provided near one end of the rotation transmission mechanism, and is inserted into the hollow gear of the rotation transmission mechanism, and is passed through a rotation operating rod formed of a hollow cylindrical body connected to the hollow gear via a hollow coupling tool. A blind characterized in that it is derived from the lower end of the rotating operation rod.