JP3001369B2 - Horizontal blinds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom rail in which a plurality of slats are horizontally supported at intervals vertically by a ladder code suspended from a head box, and the slats are arranged at the bottom of the group. -Elevating core mounted on
Lead up through the group of slats and into the headbox, guide the lift code horizontally in the headbox towards one end of the headbox, pull the lift code, or A horizontal blind in which a slat is raised and lowered by loosening and a slat is rotated by relatively vertically moving a vertical code portion before and after the ladder code. It is.

[0002]

2. Description of the Related Art A horizontal blind of the above-mentioned type is widely used at present, and can easily raise and lower a slat and adjust an angle of a slat.
The slats can be stopped at a desired height by fastening the door at a desired position by a stopper device.

Recently, a rotating operation rod for rotating a slat is disposed near one end of a head box, and an end of a lifting / lowering cord is pulled out from the lower end of the head box through the rotating operation rod. A blind has been proposed in which a slat is rotated by a rotary operation rod and the slat is raised and lowered by a lifting code.

One example is disclosed in Japanese Utility Model Application Laid-Open No. 61-102797.

[0005] In this type of horizontal blind, a stopper device for restraining the movement of the elevating code is built in near one end of the head box in order to fasten the code to a desired position.

[0006] In general, a pair of lifting / lowering codes are arranged near both ends of the blind. However, in the case of large blinds, it is necessary to provide one or more lifting codes at the center.

[0007]

Conventionally, a blind using at least three lifting codes is more effective than a lifting code passing near both ends of the slat group. The lower rail and slats are more heavily loaded by the lift code passing through the lower rail. Elevating code for fastening the elevating code to stop the blind
Since the stopper device is fastened to all lifting and lowering cords with an equal force, the lifting and lowering cord passing through the central portion of the slat group which is most loaded is slippery even when the stopper is fastened. The lifting code stopper device cannot securely fasten the lifting code passing near the center of the slat group, and when the slat is lowered halfway, the central part of the slat and the bottom rail hangs down and cannot be kept horizontal. There is a problem.

The present invention solves the above-mentioned problems in the conventional horizontal blind, and reduces the load applied to the lifting / lowering code stopper device from the lifting / lowering code at the center portion. An object of the present invention is to provide a horizontal blind in which the load acting on the lifting / lowering code stopper device is made substantially uniform so that all the lifting / lowering codes can be securely fastened. And

[0009]

According to the present invention, as a means for solving the above-mentioned problems, a plurality of slats are horizontally supported at intervals vertically by a ladder code suspended from a head box. At least three lifting / lowering codes attached to the bottom rail arranged at the bottom of these slat groups are guided upward through the slat groups and introduced into the head box, and are arranged in the head box. The slats are lifted and lowered by pulling or loosening the lifting / lowering code, and the lifting / lowering code is moved by the lifting / lowering code stopper. In the horizontal brine in which the slats are stopped at a desired height by fastening the slats, of the at least three elevating codes, the elevating After introduction de Some headbox, said lifting co - Dosutoppa - leads to the apparatus the opposite direction,
A horizontal blind is provided which is guided around a direction reversing roller toward the lifting / lowering code stopper device and passes through the lifting / lowering code stopper device.

Further, according to the present invention, in a horizontal blind of the type described above, a rotating operation rod for rotating a slat is disposed near one end of a head box, and the end of the lifting / lowering code is attached to the end of the lifting / lowering code. A horizontal blind is provided which is drawn downward from a lower end thereof through a rotary operation rod.

[0011] Also, among at least three lifting codes,
After the lifting code at the center is introduced into the head box, it is guided around the guide roller in the opposite direction to the lifting code stopper device, and then around the direction reversing roller to the lifting code stopper device. Try to lead.

[0012]

After the lifting code has been introduced into the head box,
Since it is inserted into the lifting code stopper device via two rollers, the bottom rail and the slats can be moved due to the resistance of the roller as compared with the case where only one roller is used. The load on the lifting / lowering code stopper device is reduced by reducing the load, and the load on the lifting / lowering code stopper device is made substantially uniform by all the lifting / lowering codes. All lifting codes can be securely fastened.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment will be described below.

FIG. 1 shows a horizontal blind according to the present invention, wherein 1 is a slat, 2 is a head box,
Reference numeral 3 denotes a ladder code for horizontally supporting a plurality of slats vertically at intervals, reference numeral 4 denotes a lifting code, reference numeral 5 denotes a rotating shaft for rotating the slat, and reference numeral 6 denotes a rotating shaft provided on the rotating shaft. Show the drum. The ladder code 3 is wound around the rotary drum 6, and by rotating the rotary shaft 5, the code portions before and after the ladder code 3 are relatively moved up and down. Rotate the slats to adjust for shading. Since such a mechanism is well known, a detailed description thereof will be omitted.

The lifting code 4 has a slat 1 at its lower end.
Attached to a bottom rail (not shown) arranged at the bottom of the group, and guided upward through the group of slats, introduced into the head box 2 and horizontally in the head box 2 toward one end thereof. You are being led. An elevating code stopper device 7 for restraining the movement of the elevating code 4 is incorporated near one end of the head box.

As shown in FIG. 2, the lifting / lowering code stopper device 7 includes a code nozzle 8, a code stopper 9, and a spring 10 for elastically pressing the code stopper against the code nozzle. The lifting code 4 is fastened between the code nozzle and the code stopper to fix the slat at a desired position. In order to release the lifting / lowering code stopper device 7, a stopper releasing code 11 is attached to the code stopper 9, and the code stopper 9 is moved from the code nozzle 8 against the force of the spring 10. By separating, the lifting code 4 is released, and the slat is lowered by its own weight.

In the illustrated embodiment, a rotary operation rod 12 for rotating the slat is disposed near one end of the head box 2, and its upper end is connected to the rotary shaft 5 via a universal joint. By rotating the rotating operation rod 12, the rotating shaft 5 is rotated to rotate the slat.

However, after the end of the lifting / lowering code 4 guided horizontally in the head box passes through the lifting / lowering code stopper device 7, it passes through the inside of the rotary operation rod 12 to rotate the rotation operation rod 12.
Extends downward from the lower end of the.

Therefore, the slat 1 is rotated by operating the rotary operation rod 12, and the slat 1 is raised and lowered by the lifting code 4 extending below the rotary operation rod 12. In the illustrated horizontal blind, three lifting codes 4 are provided.

As described above, in the blind using three or more lifting / lowering codes, the lifting / lowering code passing through the center of the slat group is more than the lifting / lowering code passing near both ends of the slat group. The load on the bottom rail and the slats is higher on the rail. A lifting code stopper device for fastening a lifting code to stop the blinds includes:
In order to fasten all lifting / lowering cords with an equal force, the lifting / lowering cord passing through the center of the slat group under the most load is applied.
The stopper is easy to slide even when the stopper is fastened.
May not be securely fastened.

According to the present invention, in order to eliminate such drawbacks of the blind, after the central lifting / lowering code is introduced into the head box, the central lifting / lowering code is guided in the opposite direction to the above-mentioned lifting / lowering code stopper device, and the direction is adjusted. It is guided around the reverse rotation roller toward the lifting / lowering code stopper device. For this purpose, a guide roller 13 is provided at the center of the head box, and the lift roller at the center is provided.
After the guide 4 is made to rotate around the guide roller 13, the guide 4 is guided in the opposite direction to the lifting / lowering code stopper device 7, and the direction reversing roller 14 is provided.
Is guided to the lifting / lowering code stopper device 7, passing through the lifting / lowering code stopper device 7, and then passing through the rotary operation rod 12. In the figure, reference numeral 15 denotes a guide roller for guiding the lifting code 4 other than the above.

As shown in FIGS. 3 and 4, after the lifting code 4 is introduced into the head box 2, two rollers 13,
14, the load A of the slats and the bottom rail applied to the lifting code 4 at the central portion is guided by the guide roller 13 and the direction reversing roller.
Raising and lowering code stopper by frictional resistance B + C of
The load D applied to the device is reduced. The resistance B obtained by the direction reversing roller 14 is set so that the difference between the load A and the load applied to the lifting / lowering code stopper device by the lifting / lowering code 4 at the left and right ends of the blind is substantially equal to the load A. The load acting on the lifting / lowering code stopper device can be made substantially uniform by all the lifting / lowering codes, and the lifting / lowering code stopper device can securely fasten all the lifting / lowering codes.

[0023]

As described above, according to the present invention, the lifting code at the central portion where the most load is applied is the lifting code among all the lifting codes.
The load acting on the slide stopper device is reduced, and the lifting code at the center supports a larger load than the other lifting codes, causing it to slide with the lifting code stopper device and lowering the slat halfway. Slats and bottom rail
The horizontal part can be always maintained without the central part of the tool hanging down.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing one embodiment of the horizontal blind of the present invention.

FIG. 2 is a plan view of the blind shown in FIG.

FIG. 3 is an enlarged view of a main part of the blind shown in FIG. 1;

FIG. 4 is an explanatory view showing a mode of guiding a lifting code.

[Explanation of symbols]

 1: Slat 2: Head box 3: Ladder code 4: Elevating code 5: Rotating shaft 6: Rotating drum 7: Elevating code stopper device 8: Code nozzle 9: Code stopper 10: Spring 11: Stopper release code 12: Rotating operation rod 13: Guide roller 14: Direction reverse roller 15: Guide roller

Claims (3)

(57) [Claims] A ladder code suspended from a head box supports a plurality of slats horizontally at an interval vertically and is attached to a bottom rail arranged at the bottom of these slat groups. At least three lifting cores
The head is guided upward through the group of slats and introduced into the head box. The head is guided horizontally to a position near one end of the head box through an elevating code stopper device disposed in the head box. In the horizontal brine, the slat is lifted by pulling or loosening, and the slat is stopped at a desired height by fastening the lifting code by the lifting code stopper device. After the lifting code at the center of the lifting code is introduced into the head box, it is guided in the opposite direction to the lifting code stopper device described above, and the direction is reversed.
A horizontal blind which is guided in the direction of the lifting / lowering code stopper device around the roller to pass through the lifting / lowering code stopper device. 2. The horizontal blind according to claim 1, further comprising: a rotary operation rod for rotating the slats disposed near one end of the head box;
A horizontal blind in which the end of the door is drawn downward from the lower end through the rotary operation rod. 3. The horizontal blind according to claim 1, wherein, among the at least three elevating cords, the central elevating cord is introduced into the head box and then ascends and descends around the guide roller. A horizontal blind that is guided in the opposite direction to the code stopper device, and is guided around the direction reversing roller to the lifting code stopper device.