JPH01232911A - Curtain rail device in decorative use - Google Patents

Abstract

PURPOSE:To obtain a device which is silent and almost the same appearance as ordinary style by the hand, by a method wherein an ultrasonic type of motor is used to drive a ring-runner mounted outsidely so as to be freely movable on a rod. CONSTITUTION:A screw shaft (16) is passed through on center axis of a tubing rod (10) and rotated with the rotor of an ultrasonic type of motor (20), since one end of its shaft is supported on a bearing inside a decorative part and the other end of its shaft is connected with the output shaft of the motor (20). When two kinds of high frequency voltage with phase difference are applied on piezoelectric element of the ultrasonic type of motor (20), its rotor and the screw shaft (16) are revolved in one direction, and when the phase difference is reversed, they are revolved in reverse. It is therefore possible to open and close a curtain automatically since a lead ring-runner is moved when the ultrasonic type of motor (20) is controlled. Since the motor (20) is installed inside the tubing rod (10), this device has the same appearance as ordinary style except wiring, and since the motor (20) is silent, no noise is produced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement in a decorative curtain rail device, and more specifically, to a device in which a motor drives a ring runner fitted onto a rod. It is.

[Conventional wave #i] As shown in Fig. 1, the decorative curtain rail device includes a decorated opening 7 at both ends, a bracket that supports the rod, and a bracket that is slidably fitted onto the rod. It consisted of a ring runner, and the curtains hung from the ring runner were often guided by a guide.

[Problem to be solved by the invention] In recent years, there has been a demand for automatic opening and closing of curtains.

To meet this demand, we formed helical teeth on the inner peripheral surface of the leading ring runner, fitted a gear or friction wheel near the rod bracket, attached a motor with a reduction gear to the bracket, and attached the rod to the output shaft of the motor. A decorative curtain rail device equipped with a gear or friction wheel that engages with the gear or friction wheel has been prototyped. However, since the motor of this device is visible from the outside, there are problems in that the appearance, which is the lifeblood of decoration, deteriorates and the noise of the motor's speed reducer is annoying.

The present invention has been made in view of the above, and its object is to provide an electric decorative curtain rail device that is quiet and has an appearance that is almost the same as the one in the manual.

[Means for Solving the Problems] In order to achieve the above object, the present invention employs a rod having decorative parts at both ends, a bracket that supports the rod, and a bracket that is slidably fitted onto the rod. In a decorative curtain rail device comprising a ring runner,
The reason lies in the use of an ultrasonic motor to drive the ring runner.

As shown in FIGS. 1 and 2, the device according to the first embodiment of the present invention is provided with a thread 12 on the lower surface of a hollow rod 10, and one end of a screw shaft passing through the axis inside the rod. is bearing on the inner surface of one decorative portion, the other end is integrally connected to the output shaft of the ultrasonic motor 20, the ultrasonic motor is attached to the inner surface of the other decorative portion 11, and the ring runner 30
is formed from an outer ring 31, an inner ring 32, and a connecting part 33 that connects the two, the outer ring 31 is fitted onto the rod 10, the connecting part 33 is passed through the slit 12, and the inner ring 32 is connected to the screw shaft 1.
It is screwed into 6.

Further, as shown in FIGS. 3 and 4, in the device of the second embodiment, the piezoelectric body of the ultrasonic motor 20 is provided on the bracket 14, and the rod 10 is formed as an elastic body that excites the ring runner 30. A slider is attached to the inner peripheral surface, and the rod lO is held between the slider.

Furthermore, as shown in FIGS. 5 and 6, in the device of the third embodiment, the rod 10 is passed through the shaft hole of the bracket 14, the stator of the ultrasonic motor is formed in the shaft hole, and the rod 10 is used as a rotor. A ring runner 30 having a slider fixed thereon and having protrusions or rollers diagonally provided on the inner circumferential surface is fitted onto the rod 10.

[Operation] When a high frequency voltage is applied to the piezoelectric body of the ultrasonic motor, in the first embodiment, the screw shaft 1 integrated with the output shaft
6 rotates to one side, and the ring runner 30 screwed onto it moves forward. When the phase difference of the high frequency voltage is reversed, the ring runner 30 moves backward.

In the second embodiment, a traveling wave is generated on the surface of the rod IO as an elastic body, and a ring runner 3 as the rotor 10
0 moves forward. When the phase difference of the high frequency voltage is reversed, the direction of the traveling wave is reversed and the ring runner 30 moves backward.

In the third embodiment, a rod 10 serving as a rotor rotates in one direction, and a ring runner 30 externally fitted onto the rod 10 via an oblique protrusion or roller moves forward. When the phase difference of the high-frequency voltage is reversed, the rotation direction of the rod IO is reversed and the ring runner 30 is moved backward.

In this way, by controlling the rotational direction of the ultrasonic motor, the leading ring runner 30 can be moved forward and backward, so it is possible to automatically open and close the curtain.

The ultrasonic motor has low speed and high torque, and does not require a reduction gear, so it does not generate any annoying gear noise. The ultrasonic motor does not change the external appearance of the device.

[Example] The apparatus of the present invention will be explained based on embodiments shown in the drawings.

In the first embodiment shown in FIGS. 1 and 2, the rod l
The portion of O except for the decorative portions 11 at both ends is hollow, and a slit 12 is provided on the lower surface thereof.

The rod 10 is supported by a bracket 14 fixed to a wall or the like. At this time, although not shown, the bracket) 14
The projection fits into the slit and stops the rotation of the rod 10. A screw shaft 16 passes through the axis of the rod IO, and one end of the screw shaft 16 is supported inside one of the decorative parts, although not shown. The other end of the screw shaft 16 is connected to the output shaft of an ultrasonic motor 20.
Rotates together with the rotor side. The stator side of the ultrasonic motor 20 is fixed to the inner surface of the other decorative part 11. The leading ring runner 30 consists of an outer ring 31 that is fitted onto the outside of the rod 10, an inner ring 32 that is fitted inside the rod 10, and a connecting portion 33 that connects the two.
The connecting portion 33 passes through the slit 12 of the rod IO. Outer ring 3
A hook 34 for hanging the curtain 40 is attached to a protrusion on the lower surface of the curtain 1. A female thread 35 is formed on the inner periphery of the inner ring 32,
The male thread 17 of the screw shaft 1B is screw-fitted into the female thread. When the screw shaft 1B rotates in one direction, the leading ring runner 30 moves forward, and when the screw shaft 1B rotates in the opposite direction, it moves backward. When two high-frequency voltages with a phase difference are applied to the piezoelectric body of the ultrasonic motor 20, the rotor (screw jab) 1B rotates in one direction, and when the phase difference is reversed, the rotor (screw shaft 16) rotates in the opposite direction. By controlling the sonic motor, the leading ring runner can be moved forward and backward to automatically open and close the curtain. Since the ultrasonic motor 20 is installed inside the rod IO, there is no change in appearance apart from the wiring, and the ultrasonic motor 20 is quiet and does not make any bothersome noise.

In the second embodiment of FIGS. 3 and 4, the rod lO is formed as an elastic body of the stator of the ultrasonic motor 20,
A stator piezoelectric body 18 is provided on a bracket 14 that supports the rod. Two sliders 36 are attached to the inner peripheral surface of the leading ring runner 30 in parallel. An elastic material 37 is inserted between the outer ring 31 and the slider 36, and the rod IO is strongly held between the slider 3B. When two high-frequency voltages with different phases are applied to the piezoelectric body 18, the elastic rod 10 is excited and a surface wave traveling in one direction is generated on its surface. When the phase difference of the high-frequency voltage, which travels in the opposite direction, is reversed, the traveling direction of the surface wave is reversed, and the traveling direction of the ring runner 30 is also reversed. Therefore, by controlling the ultrasonic motor 20, the ring runner 30 can be moved forward and backward to automatically open and close the curtain 40. Since the leading ring runner 30 is the rotor of the ultrasonic motor 20 and the rod IO and bracket 14 are the stator, there is no change in appearance and no noise is generated.

In the third embodiment of FIG. 5, the rod 10 is inserted into the axial hole of the bracket 14. An annular piezoelectric body 18 constituting the stator of the ultrasonic motor 20 is inserted into the shaft hole of the bracket 14.
and an elastic body 18 are attached to the rod 10, and a slider 3 is attached to the rod 10.
6 is fixed. Since the rod lO including the slider 36 constitutes the rotor of the ultrasonic motor 20, when a high frequency voltage with a phase difference is applied to the piezoelectric body 18, the rotor, that is, the rod 10, rotates in one direction, and when the one phase difference is reversed, the rod lO
O is reversed.

As shown in FIG. 6, two wheels 38 are attached to the inner peripheral surface of the leading ring runner 30, and the center positions of the two wheels 38 are symmetrical with respect to the perpendicular bisector of the ring runner. The center line is 45 along the inner peripheral surface of the ring runner.
degree of inclination. As a result, when the rod 10 rotates in one direction, the ring runner 30 moves forward, and when the rod 10 rotates in the opposite direction, the ring runner 30 moves backward. Therefore, the ultrasonic motor 20
By controlling the curtain 40, the curtain 40 can be automatically opened and closed. In this way, since the rod lO and the bracket 14 constitute the ultrasonic motor 20, there is no change in appearance and there is no risk of generating noise. Instead of providing rollers on the inner peripheral surface of the leading ring runner, a plurality of protrusions are A similar effect can be obtained by installing the

[Effects of the Invention] As mentioned above, the decorative curtain rail device of the present invention opens and closes the curtains using a motor, and the motor is a quiet ultrasonic motor, and the ultrasonic motor is housed inside the rod. Alternatively, since it is composed of a bracket and/or a rod, there is no possibility that the appearance will change due to the installation of the motor, except for the wiring.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the device according to the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line II-II of Fig. 1, and Fig. 3 is the same as Fig. 1 of the second embodiment. FIG. 4 is a sectional view taken along the line ■-■ in FIG. 3, and FIG. 5 is a diagram corresponding to FIG. 1 of the third embodiment. FIG. 6 is a sectional view taken along the line ■-■ in FIG. 5. In the figure, 10 is a rod, 11 is a decorative part, 12 is a slit, 14 is a bracket, 16 is a screw shaft, 20 is an ultrasonic motor, 30 is a ring runner, 31 is an outer ring, 32 is an inner ring, 33 is a connecting part, 34 is a hook, 36
indicates a slider, 38 indicates a roller, and 40 indicates a curtain.

Claims (1)

[Claims] 1) A device comprising a bracket, a rod supported by the bracket, decorative parts provided at both ends of the rod, and a ring runner slidably fitted onto the rod. The rod is formed hollow, and a slit extending in the longitudinal direction is provided on the circumferential surface of the rod, one end of a screw shaft passing through the inside of the rod is supported by one of the decorative parts, and the other end is connected to an ultrasonic motor. integrally connected to the output shaft of
The ultrasonic motor is attached to the other of the decorative parts, and the ring runner is connected to an outer ring fitted on the rod, an inner ring fitted on the rod, a connecting part connecting the outer ring and the inner ring through the slit, and a curtain. A decorative curtain rail device, characterized in that it is formed from a vine hook, and a female thread is formed on the inner circumferential surface of the inner ring to engage with the male thread of the screw shaft. 2) A device comprising a bracket, a rod supported by the bracket, decorative parts provided at both ends of the rod, and a ring runner slidably fitted onto the rod, the device comprising: A piezoelectric body of an ultrasonic motor is provided, the rod is formed as an elastic body excited by the piezoelectric body, a slider of the ultrasonic motor is provided on an inner peripheral surface of the ring runner, and the rod is held between the sliders. A decorative curtain rail device characterized by: 3) A device comprising a bracket, a rod supported by the bracket, decorative parts provided at both ends of the rod, and a ring runner slidably fitted onto the rod, Pass it through the shaft hole of the bracket,
A stator of an ultrasonic motor made of a piezoelectric body and an elastic body is provided around the shaft hole, a slider of the ultrasonic motor that presses against the elastic body is fixed to the rod, and a protrusion or a stator is provided on the inner peripheral surface of the ring liner. A decorative curtain rail device characterized by obliquely installed rollers.