JPS6354865B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to blinds, and more particularly to blinds that use a support frame made of rigid members instead of the ladder-shaped support cords commonly used in the past, thereby using a conventional complex mechanism. The purpose of the present invention is to provide a new type of blind in which the blind blades can be rotated by a simple mechanism without the need for excessive movement.

In the blind according to the present invention, a plurality of horizontal members are arranged between a pair of parallel vertical members at regular intervals in the longitudinal direction of the vertical members, and each horizontal member is connected to a pair of vertical members by a pivot. A ladder-shaped support frame may be constructed, and a pair of support frames configured in this way are opposed to each other at a distance from each other, and the pair of support frames correspond to each other at least at two positions above and below. A connecting shaft is provided to connect the centers of the horizontal members, and a blind blade plate is arranged between each of the mutually corresponding horizontal members in the pair of support frames, and one of the connecting shafts is rotated. It is characterized in that the wing plate is rotated by the .

In a preferred embodiment of the invention, one of the connecting shafts is connected to a motor and is actuated to disable the motor at the end of the movement of the longitudinal member caused by the rotation of the transverse member due to the rotation of the motor. A limit switch is provided.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the blind according to the present invention, in which 1 indicates the headbox of the blind and 2 indicates the main body of the blind.

As shown in FIG. 2, a pair of parallel vertical members 3,
3, a plurality of horizontal members 4 are arranged at regular intervals in the longitudinal direction of the vertical member, and both ends of each horizontal member 4 are connected to the vertical members 3, 3 by respective pivots. Thus, a ladder-shaped support frame 6 is constructed.
A pair of support frames 6 configured in this manner are arranged facing each other on both sides of the head box 1 with a gap between them. Connecting shafts 7, 8 connect the centers of the mutually opposing horizontal members 4, 4 at at least two locations on the upper and lower sides of these pair of support frames 6, 6, that is, in the illustrated example, at the top and bottom. will be provided. However, these pair of support frames 6, 6
A blind wing plate 9 is supported between each of the mutually opposing lateral members 4, thereby forming a blind main body 2.

In the illustrated embodiment, a motor 10 is disposed within the headbox 1, and one of the connecting shafts 7 is driven by this motor 10. Therefore, by rotating the motor 10 in the forward or reverse direction,
The support frame 6 is deformed as shown in FIG. 3 to rotate each transverse member 4 about its center, thereby causing the blind vane 9 to rotate back and forth.

A limit switch 11 is provided which is actuated to deenergize the motor 10 at the end of the movement of the longitudinal member 3 caused by the rotation of the motor 10 when the vane 9 rotates.

As mentioned above, in the illustrated device, the blades are opened and closed by the energization of the motor 10, and when the blades are rotated to the fully closed state, the motor is deenergized by the limit switch and stopped at the fully closed position.

The embodiment shown in FIG. 4 shows a mechanism substantially similar to that shown in FIG. It is attached to the center of the member 4.

As described above, the present invention enables the rotation of the blades of the blind by a simple mechanism consisting of a combination of rigid vertical members and horizontal members, without using a complicated mechanism unlike conventional blinds. It is something to do,
To provide a blind that is extremely inexpensive and operates reliably. In particular, the support frame that supports the blind vanes is constructed from a combination of rigid vertical members and horizontal members, instead of using the conventional ladder-like ladder cord, and the vanes are fixed to the horizontal members at both ends. The blades are held securely even when the support frame is mounted at an angle, so that the blind can be used on slanted or even horizontal windows, such as skylights.
Also, because the vanes are held by these rigid support frames, extremely thin vanes, such as aluminum foil, can be used, which could not be used in conventional blinds that support the vanes with ladder cords. It is also possible to use blades with no stiffness, such as this, and by fixing such blades under tension to the horizontal members of the left and right support frames, deformation of the blades can be prevented and reliable operation can be achieved. be able to. Therefore, by using such extremely thin materials, very light blinds can be made. In addition, by attaching a blade fixing member to the support frame and fixing the blade to this blade fixing member, it is possible to rotate more reliably than conventional blinds using ladder cords, and the support frame can be made into a rigid body. Therefore, the support frame can be used to operate the limit switch, and it can also be provided at low cost as an electric blind.

[Brief explanation of drawings]

1 is a perspective view showing an embodiment of the blind according to the present invention, FIG. 2 is a side view showing the support frame of the blind shown in FIG. 1, and FIG. 3 is a similar side view showing the operating state of the blind; FIG. 4 is a diagram similar to FIG. 2 showing another embodiment of the present invention. 1...Head box, 2...Blind body, 3, 3'...Vertical member, 4...Horizontal member, 5...
Pivot, 6... Support frame, 7, 8... Connection shaft, 9...
Wing plate, 10...motor, 11...limit switch.

Claims (1)

[Claims] 1. A plurality of horizontal members are arranged between a pair of parallel vertical members at regular intervals in the longitudinal direction of the vertical members, and each horizontal member is connected to a pair of vertical members by a pivot. By doing so, a ladder-shaped support frame is constructed, and a pair of support frames configured in this manner are opposed to each other with a gap between them, and the pair of support frames are mutually connected in at least two places above and below. A connecting shaft connecting the centers of the corresponding horizontal members is provided, a blind blade plate is supported between each of the mutually corresponding horizontal members in the pair of support frames, and one of the connecting shafts is rotated. A blind characterized in that a wing plate is rotated by a. 2. Claims that include a limit switch that connects one of the connecting shafts to a motor and disables the motor by being actuated at the end of the movement of the vertical member caused by the rotation of the horizontal member due to the rotation of the motor. Blinds as described in paragraph 1.