JPS6031202Y2 - Sliding operating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sliding operation device, and is suitable for application to, for example, an operation device such as a sliding volume of an electronic device.

In recent years, an increasing number of electronic devices such as television receivers, stereos, and video tape recorders (VTRs) are operated by remote control.

However, operating devices such as volume controls operated by remote control have conventionally been limited to rotary types.

That is, conventionally, there has been no operating device such as a sliding volume that allows easy reading of the level and is advantageous in terms of design, but can be operated by remote control.

The present invention has been made in view of the above-mentioned circumstances, and aims to provide a sliding operating device that can be operated by remote control or the like.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sliding volume control device for an electronic device will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, an operating knob 3 is molded integrally with a slider 2 of a sliding volume (variable resistor) 1 from synthetic resin.

The operating knob 3 and the slider 2 are connected to each other by a pair of thin arm-shaped elastic parts 4.

Further, a feed screw 5 is provided along the moving direction of the operating knob 3, and passes through a through hole 6 provided in the operating knob 3.

The feed screw 5 is rotatably supported by a pair of bearings 8 and 9 provided at both ends of the casing 7 of the volume 1.

One end of the feed screw 5 extends through the bearing 9 and is connected to a motor 11 via a gear box 10.

As shown in FIG. 2, a part of the inner surface of the through hole 6 provided in the operating knob 3 is provided with an engaging portion 12 having, for example, a female thread.

The inner diameter of the through hole 6 is larger than the diameter of the feed screw 5, and the engaging portion 12 is fed by the elastic urging force of the elastic portion 4 connecting the operating knob 3 and the slider 2. It is pressed and engaged with the screw 5.

That is, the engaging portion 12 is biased in the direction opposite to the direction of arrow A in FIG. 2 due to the elastic restoring force of the pair of elastic portions 4 bent into a U-shape.

By pushing the operating knob 3 in the direction of arrow A, the engaging portion 12 can be separated from the feed screw 5 against the biasing force of the elastic portion 4 to release the engagement.

As shown by imaginary lines in FIG. 1, the operating knob 3 is inserted through an operating hole 14 provided in a panel 13 of the electronic device and exposed to the outside.

Further, the volume 1 is attached to a printed circuit board 15.

Next, the operation of this operating device will be explained.

First, when operating by remote control, the operator presses the operation switch 18 provided on the remote control device 17.

Then, the electrical signal from this remote control device is transmitted to the motor drive circuit 16 by wire or wirelessly.

The motor 11 is rotationally driven by a drive signal from the motor drive circuit 16, and this drive force is reduced in speed and transmitted to the feed screw 5 via the gear box 10.

As a result, the feed screw 5 is rotated at a predetermined speed in the direction of arrow B or C in FIG.

At this time, since the engaging portion 12 of the operating knob 3 is engaged with the feed screw 5 due to the elastic biasing force of the elastic portion 4, the operating knob 3 is moved to the first position by the rotation of the feed screw 5. Arrow or E in the diagram
move in the direction.

Then, the slider 2 of the volume 1 is slid together with the operating knob 3, and the resistance value is automatically adjusted.

Note that when the operator releases the switch 18 of the remote control device 17, the motor 11 stops, and therefore the operation knob 3
And the slider 2 also stops.

In the above-mentioned operation, if the operator still presses the switch 18 even after the operating knob 3 reaches its end of movement, for example, the MAX position or the MIN position, the motor 11 is rotating but the operating knob 3 does not move beyond that position. Unable to move.

In the configuration of this embodiment, at this time, the engagement part 12 is disengaged due to the elastic deformation of the elastic part 4, and the feed screw 5 rotates idly, so that no unreasonable force is applied to the motor 11 or the engagement part 12.

Therefore, there is no need to provide a protection circuit for the motor 11 or a special latch mechanism.

When moving the operating knob 3 manually, the operating knob 3 is pushed in the direction of arrow A in FIG. 2 through the operating hole 14 of the panel 13 against the biasing force of the elastic portion 4.

Then, the engagement portion 12 is disengaged, and the operating knob 3 becomes freely slidable in the left and right directions in the figure.

Therefore, if the operation knob 3 is moved to a desired position in this state, the slider 2 of the volume 1 can be slid together with it.

The present invention has been described above with reference to the drawings in terms of embodiments, but the above-mentioned embodiments are by no means limited to the present invention.
Various modifications are possible based on the technical idea of the present invention.

For example, in the embodiments shown in FIGS. 1 and 2, the engagement is released by pressing the operating knob 3, but for example, the urging force of the elastic portion 4 may be reversed and the operating knob 3 may be pulled. By doing so, it is also possible to release the engagement with the feed screw 5 and allow it to slide.

Also, if a low speed motor is used as the motor 11, the gear box 1
0 can be omitted.

Furthermore, the present invention is also applicable to operating devices that include electrically variable elements other than volumes, such as variable capacitance elements and variable impedance elements.

As explained above, the present invention includes a slidable operating heir made of synthetic resin, a feed screw provided along the sliding direction of the operating heir for slidingly operating the operating heir, and
a motor for rotationally driving the feed screw; an engaging portion provided on the operating heir to engage with the feed screw;
In order to elastically engage the engaging portion with the feed screw, each of the operating heirs is provided with an elastic portion integrally provided, and the urging force of the elastic portion acts. The engaging portion is configured such that the drive torque is substantially the same in both the forward and reverse directions of the sliding direction of the operating heir, and the engaging portion is controlled by a pair of arms bent symmetrically with respect to the direction. The present invention relates to a sliding operating device configured to be detachable from the feed screw against the biasing force of the elastic portion.

Therefore, according to the present invention, it is possible to provide a sliding operating device that can be operated not only manually but also by remote control.

Furthermore, the structure is extremely simple and low cost, as there is no need to provide a motor protection circuit or a special latch mechanism.

Furthermore, in the present invention, since the operating heir and the elastic part are integrally molded from synthetic resin, manufacturing is simple and the cost is low.

Furthermore, the elastic portion is configured with a pair of arms bent symmetrically with respect to the direction in which the biasing force acts, so that the driving torque in both the forward and reverse directions of the sliding direction of the operating knob is substantially the same. Therefore, the sliding movement of the operating knob becomes smooth and the load on the motor can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an external perspective view of the operating device according to the first embodiment, and FIG. 2 is a partially sectional plan view showing the structure of the operating knob of the device. It is. In addition, in the symbols used in the drawings, 1...Sliding volume, 2...Slider, 3...
- Operation knob, 4... elastic part, 5... feed screw, 11 - bending motor, 12... engaging part.

Claims (1)

[Scope of utility model registration request] A sliding operating knob made of synthetic resin, a feed screw installed along the sliding direction of the operating descendant for sliding operation of this operating knob, and a rotating drive for this feeding screw. a motor, an engaging portion provided on the operating heir for engaging with the feed screw, and integrally attached to the operating heir for elastically engaging the engaging portion with the feed screw. each having an elastic section provided therein, the elastic section extending from a pair of arms that are bent symmetrically with respect to the direction in which the biasing force acts, and the elastic section being provided with an elastic section extending from a pair of arms that are bent symmetrically with respect to the direction in which the biasing force acts; A sliding operating device configured such that drive torques are substantially the same, and configured such that the retaining portion can be separated from the feed screw against the biasing force of the elastic portion.