JPS58143088A - Baton type vertical blind - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a vertical blind that expands, contracts, and rotates a row of blades by operating only a baton. A vertical blind in which a baton runner is connected to a runner on the frontmost blade plate (Japanese Patent Publication No. 51-49355,
Utility Model No. 52-10863) is capable of expanding, contracting and rotating the vane rows by operating the leading baton, but when aligning the left and right vane rows at the center, two left and right rows are placed in the center. When the batons are lined up, there is a problem in that the left and right wing plates at the front end do not overlap, creating a gap. Furthermore, when the baton of the manju is operated quickly to extend the row of blades, the runner at the 6'II end is pulled back due to the inertia of the weight at the bottom of the swing plate, the elastic repulsion of the connecting member, etc., so the runner can be closed securely. There is also the problem of not being able to do that.

Inventor of the present application Nagisa proposed a vertical blind (Utility Application No. 56-092432) in which a baton launch was attached to the launch of the foremost blade plate and the runner ml of the next wall plate. In the proposed blind, even if the left and right blade rows are aligned at the center, there will be no gap in the center. These blinds use connecting members such as magnets and needle cloth between the stop collar and the frontmost runner to prevent the runners from returning with their adhesive force. is Shinta.

However, this adhesive force becomes a hindrance when degenerating the plateless rows, so if the adhesive force is strengthened, a problem arises in that it is difficult to degenerate the 41 rows.

An object of the present invention is to solve the above-mentioned problem by providing a baton-type vertical blind that can reduce the effect of pulling back the frontmost runner.

In order to achieve the above object, the vertical blind of the present invention includes a baton pivotally attached to the next runner at the front end, a rotation transmission device that rotates the vane rotation shaft via the baton, and a rotation transmission device that rotates the blade rotating shaft through the baton, It consists of a spacer that regulates the interval between the runners when the blades are extended, and the spacer relaxes the connecting member between the frontmost runner and the next runner when the blades are extended, and the relaxation causes a pullback effect on the nose plate row. is reduced.

The blind of the present invention will be explained based on the embodiment shown in the drawings. As shown in FIGS. 1 and 2, the head rail 1
The blade rotation shaft 2 is rotatably passed through the inside of the blade rotation shaft 2.
A top runner 4a1 spacer 5 from which the foremost wing plate 3a is hung, a second launch 4b from which the operating baton 6 and the second wing plate 3b are hung.

Attach it freely. The runners 4a14b and 4 are connected via a link 6 (7: FIG. 2), and the maximum distance between the runners, that is, between the blades, is regulated to be smaller than the width of the blade 3.

A stop collar 8 and a stop horn (9) are attached to the head rail 1 to determine the forward positions of the frontmost and rearmost runners, and a connecting member 10 made of a magnet or needle cloth is attached to the contact surface between the stop collar 8 and the frontmost runner 4a. The upper end shaft 12 of the baton 6 is rotatably attached to the second runner 4b.
L7, the operating section 14 is connected to the upper end via the universal joint 13.

As shown in FIG. 2, a screw gear 15 is fixed to the baton upper end shaft 12 bearing the second runner 4b, and the screw gear 15 is meshed with a screw gear 16 that rotates integrally with the vane rotating shaft 2 in the second runner. . The worm 18 that rotates together with the screw gear has a worm wheel 20 fixed to the end of the worm wheel fixed to the vane shaft 19, and the worm wheel is engaged with the worm 18 that rotates together with the vane rotation shaft 2. Therefore, when the baton 6 is rotated, the rotation is caused by the rotation of the universal joint 13 and the screw gear 15.1.
6 to the vane rotating shaft 2, and all the vanes rotate in the same direction.

As shown by the chain line in FIG. 2, the length of the spacer 5 is set so that when the spacer 5 is in close contact with the top runner 4a and the second runner 4b, there is sufficient room for the frontmost link 7a that connects both runners. Set.

This allowance, or relaxation, absorbs the restoring action of the vane row caused by the inertia of the weight at the lower end of the vane, and reduces the restoring force acting on the top runner 4a. The top runner 4a of the embodiment is formed wider than the runners 4 on the third and subsequent edges, but this is to prevent twisting caused by the links 7a near the ends. If the link is in the center, grasp the top runner and the ton operation part 14 and move it in the direction of the arrow in Figure 1)
When the second runner 4b is moved, the second launch 4
b pushes the top runner 4a through the spacer 5 to move it forward. Lunch 4 after the third one was also attracted by the link and became 11.
0th order forward. When the top runner 4a hits the stop collar 8, forward movement is stopped. At this time, second runner 4b
, the third runner 4 reaches the position shown by the chain line in Figure 2, but unless it is moved forward extremely slowly, the blade row will swing back by the pendulum action based on the inertia of the weight at the lower end of the blade. A force is created which puts tension on the taut link 7 which pulls back the vane row. The pullback tension is added as it moves forward, but since the link 7a connecting the top runner 4a and the second runner 4b is relaxed, the pullback tension does not initially act on the top runner 4a. When the second launch 4b is returned to the position indicated by the solid line where it is receiving the maximum pullback force, the link 7a becomes tense and the top runner 4
A pullback action is applied to a, but by then the pullback force has been absorbed and decreased by 1, so the adhesive force between the connecting members 10 and 11 between the top runner 4a and the stop collar 8 is strong enough to be attached to the top runner. There is no risk that 4a will come off the stop collar 8 and return due to unswinging. In this way, even if the baton 6 is operated rapidly to extend the row of vanes, the frontmost vane 3a does not return, and the blind can be fully extended and reliably closed with - times of operation.

When the blade row is degenerated, the joining part between the top runner 4a and the stop collar 8 is different from the conventional one.10.11
Since the adhesive force is strong, no special force is required to remove the top runner 4a from the stop collar 8.

Therefore, by operating the baton 6, the blade row can be degenerated extremely smoothly.

In the embodiment described above, the rotation of the baton was transmitted to the vane rotating shaft through a gear mechanism, but as shown in FIGS. and two cords 31-132 on the drum.
Wrap the cord in opposite directions and wrap the cord around the hollow baton 6.
You can pass it through.

The upper end 12 of the baton 6 is fixed to the second launch 4b, and the operating section 14 is connected to the upper end 12 via a universal joint 13. When one of the cords 31 and 32 hanging down from the operating portion 14 is pulled, the drum 30 and the blade rotating shaft 2 are rotated in the other direction when the other is pulled, and the blade rows rotate in unison. The expansion and degeneracy of the blade row is exactly the same as in the previous embodiment. If the inertia of each blade is large or the blade row is long, the adhesive force of the connecting member 10111 must be strengthened. When opening the closed blade row, the baton 6 is first moved to the opposite side to loosen the frontmost link 7a, and then moved in the direction of opening the blade row, the connecting member 10,
Acceleration due to run-up can be used for separation of 11.

Therefore, even if the bonding members 10 and 11 have a strong adhesive force, they can be separated relatively easily.

Since there is no baton at the beginning of the blind row of the present invention, it is difficult to create a gap even if the left and right blade rows are aligned at the center.

Since the force that swings back the h-plate row is reduced and acts on the leading launch, the adhesive force of the material connecting the stop collar and the leading runner can be made smaller than before, which reduces the weight of the blade row. There is less resistance when moving, making it easier to operate.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing a baton-type vertical blind according to an embodiment of the present invention before it is expanded, and FIG. 2 is a partially cutaway view of the main part of the blind shown in FIG. Plan view with a cutaway, 3rd n 11: Heradrail 2:
Vane plate rotation axis 3: Vane plate 4a Nidotsu runner 4b; Second runner 5 Ni spacer 6: Baton spacer a
: Link 12: Upper end of baton 15.16: Screw gear 1
9: Blade shaft 30 Nidrum 31. 32: Code applicant Toso Co., Ltd. Figure 2 Figure 1 Figure 4

Claims (1)

[Claims] 1) rotatably bearing the vane rotating shaft on the herad rail,
A runner is passed through the blade rotating shaft, a blade shaft for hanging the blade from each launch is rotatably provided, a gear mechanism is provided to transmit the rotation of the blade-rotating shaft to the blade shaft, and Each runner is sequentially connected via a connecting member that regulates the spacing, the upper end of the baton is attached to the second launch, and the baton is provided with a drive mechanism that rotates the blade rotation shaft, and the front end and the second launch are connected to each other. The plateless rotation-1 between the runners of
A baton-type vertical blind characterized in that a spacer is fitted in the runner so that the distance between the front end and the second runner is narrower than the maximum distance formed by the connecting member when the blade row is extended. 2) [g1 rotary drive machine is driven by the upper end of the baton which is rotatably received by the second runner, one screw gear fixed to the upper end of the baton, and the rotary rotary b1 that rotates integrally with the vane rotation shaft. 2. The baton-type vertical blind according to claim 1, further comprising another threaded gear which is operatively attached and meshes with said one threaded tooth. 3) The rotational drive mechanism includes a hollow baton whose upper end is attached to the second runner, a drum which is attached to the vane rotating shaft so as to be integrally rotatable, and 4) a launch and stop collar at the forefront end. A baton type vertical blind according to any one of claims 1 to 3, characterized in that a connecting member such as a magnet or a needle cloth is provided on the facing surface of the baton type vertical blind.