JPH0213677Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a slat angle adjustment device for a blind.

(Prior art) As a type of horizontal blind built into a glass shoji, a headbox is fixed inside the upper stile of the glass shoji, and a large number of slats are suspended and supported from the headbox by ladder cords, and an angle adjustment device is attached to the headbox. Some have slats whose angles can be adjusted by operating them. This angle adjustment device is rotatably supported within a head box, and has a structure in which an angle adjustment shaft that suspends and supports the ladder cord is rotated by an endless chain or tape stretched within a vertical frame of a glass shoji, A part of the chain or tape is exposed to the handle of a glass shoji screen for operation, or a bevel gear is used to connect the base end of the angle adjustment shaft and the upper end of the drive shaft rotatably supported within the stile. There is a structure in which the angle of the slat can be adjusted by connecting the drive shaft with an operation dial provided on the handle of the vertical stile and rotating the angle adjustment shaft.

(Problem to be solved by the invention) The conventional angle adjustment device described above has a chain, tape, or drive shaft installed inside the vertical stile of the glass shoji to drive the angle adjustment shaft of the blind, and the chain or tape is operated. In order to do this, a part of them must be exposed to the handle of the glass shoji, or the drive shaft must be installed inside the vertical stile so that it can be operated from the outside using an operation dial, which results in a complicated structure and is complicated to assemble.

Structure of the invention (means for solving the problem) In order to solve the above-mentioned problem, this invention connects the rotating shaft rotated by the operation dial and the angle adjustment shaft of the slat with a transmission cable.

(Function) With the above means, the rotation of the rotation shaft accompanying the rotation operation of the operation dial is transmitted to the angle adjustment shaft via the transmission cable.

(Example) An example embodying this invention will be described below with reference to the drawings.A glass shoji 1 has a blind 2 disposed behind a glass plate. This blind 2 has two ladder cords 5 suspended from a head box 4 housed in the upper stile 3 of the glass shoji 1, a large number of slats 6 supported by the ladder cords 5, and a bottom rail at the bottom. 7 is suspended and supported. And the vertical stile 8 of glass shoji 1
By operating an operation dial 9 provided in the center, the angle of each slat 6 is adjusted in the same phase by an angle adjustment mechanism provided in the vertical stile 8, which will be described later.

A lifting cord 10 passes through each slat 6 in the vicinity of the ladder cord support portion, a bottom rail 7 is connected to the lower end of the lifting cord 10, and the upper end runs inside the head box 4 in the direction of one vertical frame 8 of the glass shoji 1. The bottom rail 7 is guided and connected to an elevating mechanism provided in the vertical stile 8, which will be described later, and the bottom rail 7 is raised and lowered by operating the elevating mechanism, thereby making it possible to raise and lower each slat. In addition, when the bottom rail 7 is lowered to the lowest limit, the bottom rail 7 is hidden within the lower stile 11 of the glass shoji 1.

The angle adjustment mechanism and elevating mechanism of the slat 6 will be explained with reference to FIG.
Its upper end is wound around an angle adjustment shaft 12 that is rotatably supported within the head box 4, and one end of the angle adjustment shaft 12 projects outside the head box 4 and into the vertical stile 8, and is driven by the projecting portion. A pulley 13 is fitted.

The operation dial 9 is attached to one end of a rotating shaft 14 that is rotatably supported in the vertical center of the vertical stile 8, and the other end of the rotating shaft 14 that protrudes into the vertical stile 8 has a A drive pulley 15 is fitted. A transmission string 16 is hung between the drive pulley 15 and the driven pulley 13, and when the operation dial 9 is rotated, the angle adjustment shaft 12 is rotated.

The lifting cord 10 is guided inside the head box 4 in the direction of the vertical stile 8, and then guided to the lower end of the vertical stile 8 at the upper end of the vertical stile 8. It is connected to 17. This operating knob 17 moves up and down using a rib 18 that protrudes from the front and rear inner surfaces of the vertical stile 8 as a guide rail, and is connected to the bottom rail by the biasing force of a coil spring (not shown). A predetermined frictional force is set to resist the weight of the slats 7 and slats 6, so that they will not move up or down unless operated by the user.

Now, Blind 2 configured as above
When the operating knob 17 is moved downward against the friction with the rib 18, the lifting cord 10 is moved and the bottom rail 7 is lifted up, and as the bottom rail 7 is moved upward, the lower slat 6 is They will be raised in order. After the slat 6 is pulled up to the desired position, the weight of the bottom rail 7 and the slat 6 is supported by the friction between the operating knob 17 and the rib 18, so that the bottom rail 7 and the slat 6 are stably suspended and supported at the desired position. Ru. Further, when the operating knob 17 is moved upward, the bottom rail 7 descends due to its own weight and returns to the state where it is supported by the ladder cord 5 in order from the upper slat 6.

The angle of each slat 6 supported by the ladder cord 5 is adjusted in the same phase by rotating the operation dial 9. That is, when the operation dial 9 is rotated, the drive pulley 15 is rotated via the rotating shaft 14, and the rotation of the drive pulley 15 is transmitted to the driven pulley 13 via the transmission string 16. As the driven pulley 13 rotates, the angle adjustment shaft 12 is rotated, and the angle of each slat 6 is adjusted in the same phase via the ladder cord 5.

In the angle adjustment mechanism for the slat 6 as described above, a drive pulley 15 rotated by an operation dial 9 and a driven pulley 13 fitted on an angle adjustment shaft 12 are connected by a transmission string 16. Therefore, the slat angle adjusting device can be configured with an extremely simple structure, and both pulleys 13, 15
Assembling is also much easier since there is no need to accurately position the relative positions of the two.

Effects As detailed above, this invention exhibits the excellent effect of providing a slat angle adjustment device that has a simple structure and can be easily assembled.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a slat angle adjusting device embodying this invention, and FIG. 2 is a front view of a glass shoji screen embodying this invention. Slut...6, Operation dial...9, Angle adjustment axis...12, Rotation axis...14, Transmission string...1
6.

Claims (1)

[Scope of utility model registration request] A slat angle adjustment device for a blind, characterized in that a rotation shaft 14 rotated by an operation dial 9 and an angle adjustment shaft 12 of a slat 6 are connected by a transmission cable 16.