JP2502607Y2 - Window blind operating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an operating device for vertically moving and adjusting the angle of a blind slat, and in particular, an operating device for a blind supported by a frame such as a sash. It is about.

[Prior Art] Conventionally, a base end of an operation handle is rotatably supported on an input shaft of a gear box provided in a frame as one type of blind operating device built into a sash, and an output of the gear box is output. There is one in which a driving force transmission shaft is connected to the shaft, and the operation handle is exposed to the outside of the frame so that it can be held by a holder provided on the front face of the frame when it is not used. In such an operating device, when the operating handle is rotated, the slat drive shaft is rotated through the gear box and the transmission shaft, and the slat is vertically tilted and then moved up and down.

Therefore, in such an operating device, when the slat is raised and lowered, the slat is vertically tilted, and therefore, after raising and lowering the slat to a desired height, the operation handle is rotated in the opposite direction. Angled the slats.

[Problems to be solved by the invention] However, since the operation handle cannot be rotated in any direction with respect to the gear box input shaft in the above-described operation device, the operation handle is held by the holder after the slat angle is adjusted. In this case, it is necessary to rotate the operation handle so that it can be rotated in the direction of the holder, and as a result, the angle of the slat deviates from the desired angle. An object of the present invention is to provide an operating device for a blind operating device as described above, which is capable of rotating the operating handle in a direction that matches the holding position without changing the angle of the slats.

Configuration of the Invention [Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention suspends and supports a blind on a frame, and installs a slat drive device for adjusting the angle of the slat on the frame, An operation handle is connected to the drive device via a transmission mechanism so as to be rotatable between an operation position and a holding position about a base end portion thereof, and the axis line of the operation handle is arranged in the operation position. By rotating the slat as a center, the slat drive device can be driven to adjust the angle of the slat, and when the slat is not in use, it can be rotated to the holding position to hold the slat on the holder provided on the frame. In the framed blind, the transmission mechanism transmits the rotation of the operation handle to the slat drive device when the operation handle is rotated from the operation position to the holding position. The clutch device for so as not to those that are interposed.

[Action]

By the above means, the slat is adjusted to a desired angle by placing the operating handle in the operating position and rotating the operating handle. After adjusting the angle of the slat, the operation handle is rotated from the operation position to the holding position so that the operation handle is held by the holder. When the operation handle is rotated from the operation position to the holder, the rotation of the operation handle is not transmitted to the slat drive device by the clutch device.
The slats will not deviate from the desired angle.

〔Example〕

An embodiment embodying the present invention will be described below with reference to the drawings. A blind 1 shown in FIG. 1 is built in a double glass sash 2 and a head box 4 housed in an upper frame 3 of the sash 2 is used. A large number of slats 5 are suspended and supported. The blind 1 has a built-in slat driving device that is vertically moved after the slat is tilted in the vertical direction by rotationally driving the slat driving shaft in the head box 4.

A first gear box 6 is disposed on one side of the upper frame 3, a driven side transmission shaft 8 rotatably supported in a vertical frame 7 of the sash 2 is connected, and the driven side transmission shaft 8 is When rotated, the slat drive shaft is rotationally driven via the output shaft 6a.

A drive side transmission shaft 10 is connected below the driven side transmission shaft 8 via a clutch device 9, and the drive side transmission shaft 10 is connected to a second gear box 11. The base end of the operation handle 12 is rotatably supported on the input shaft (not shown) of the second gear box 11. The lower frame 13 of the sash 2 is provided with a holder 14 for holding the tip end of the operation handle 12 therebetween. In this embodiment, the first gearbox 6, the output shaft 6a, the driven side transmission shaft 8, the driving side transmission shaft 10, the second gearbox 11 and the input shaft constitute the transmission mechanism of the present invention. ing.

The clutch device 9 is composed of a cylindrical driven portion 15 attached to the lower end of the driven side transmission shaft 8 and a similarly cylindrical driving portion 16 attached to the upper end of the drive side transmission shaft 10. Driven part
Lock protrusions 15a, 16a are formed on one end surface of the drive unit 15 and the drive unit 16, respectively. The lock protrusions 15a, 16a are located on the same track, and when the drive side transmission shaft 10 is rotated, the drive unit is driven. The locking protrusion 16a formed on the 16 is the locking protrusion 15a formed on the driven part 15.
Is adapted to engage with.

Next, the operation of the slat drive device configured as described above will be described.

When the slat 5 is moved up and down by the slat drive device, first, the operation handle 12 is removed from the holder 14 and the operation handle 12 is rotated, for example, in the slat pulling direction. Then, the two locking projections 15a and 16a, which are located apart from each other as shown by the solid line in FIG. The locking projection 16a engages with the locking projection 15a as shown by the chain line in the figure. In this state, the rotational torque of the drive side transmission shaft 10 is transmitted to the driven side transmission shaft 8, and the slat 5 is vertically rotated and pulled up based on the rotation of the driven side transmission shaft 8. Then, after pulling up to the desired position, the operation handle 12 is rotated in the opposite direction to engage the locking protrusion 16a.
Is rotated in the direction of arrow B so that the locking projection 16a is engaged with the locking projection 15a from the opposite direction, and the driven side transmission shaft 8
By rotating in the opposite direction, the slat 5 is rotated and the angle can be adjusted.

When the operation handle 12 is held by the holder 14 after the slat 5 is adjusted to a desired angle by such an operation, the operation handle 12 is again rotated by rotating the operation handle 12 in the slat pulling direction, that is, the locking projection 16a in the arrow A direction. Locking protrusion 15a, 1
Hold the base end of the operating handle 12 while holding 6a apart.
The direction is such that it can be rotated in 14 directions, and the tip of the operation handle 12 is fitted into the holder 14 in that state.

Therefore, in this slat drive device, the clutch device 9 allows the drive-side transmission shaft 10 to idle around the driven-side transmission shaft 8 within a certain angle range, so that the operation handle 12 can be rotated without changing the angle of the slat 5. It can be held by the holder 14.

Advantageous Effect of the Invention As described in detail above, the present invention suspends and supports the blind on the frame, and drives the slat drive device based on the rotation operation of the operation handle provided on the frame to adjust the angle of the slat. In a blind with a frame in which the operating handle can be held by a holder provided on the frame when the operating handle is not used, after adjusting the slat to a desired angle, the operating handle does not change the angle of the slat. It is possible to provide an operating device that can rotate and hold the device in a direction that matches the holding position, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a front view of a slat operating device embodying the present invention, and FIG. 2 is a cross section of the clutch device thereof. A first gear box 6, an output shaft 6a, a driven side transmission shaft 8, a driving side transmission shaft 10, a second gear box 11 and an input shaft, a clutch device 9, and an operating handle 12 which constitute a transmission mechanism.

Claims (1)

(57) [Scope of utility model registration request] 1. A slat driving device for suspending and supporting a blind on a frame, and adjusting a slat angle on the frame,
An operation handle is connected to the slat drive device via a transmission mechanism so as to be rotatable between an operation position and a holding position around the base end portion thereof, and the axis line of the operation handle is placed in the operation position. The slat drive device can be driven by rotating the slat as a center to adjust the angle of the slat, and the slat can be held in the holder provided on the frame by rotating it to the holding position when not in use. In the blind with frame, the transmission mechanism (6, 6a, 8, 10, 11) includes an operation handle (1
Operation of a blind with a frame, characterized by interposing a clutch device (9) for preventing the rotation of the operation handle (12) from being transmitted to the slat drive device when rotating 2) from the operating position to the holding position. apparatus.