JPS6225767Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an operator fixture for electronic equipment that fixes and holds an operator in a set position.

Generally, electronic devices such as pre-amplifiers, electronic musical instruments, audio equipment, frequency analyzers, medical equipment, and various other measuring devices are equipped with multiple controls. Once the attenuators and other controls for setting the tone of the synthesizer have been set, if they are touched by an outsider, it is very difficult to reset them, and it is not necessary to make many changes after they have been set. Therefore, it is desirable to keep this type of operator in a semi-fixed state. However, fixing means within the electronic device or the operator itself,
Incorporating devices, etc. not only complicates the structure, but also
Since this also causes an increase in cost, there is a need for a fixture that has a simple structure and is easy to handle.

This invention was made in response to such requests, and includes a fixture body consisting of a permeable body that is removably fitted onto the operator and in contact with the panel surface.
By constructing the fixture with a display section provided on the surface of the fixture body, it is inexpensive and easy to handle.
An object of the present invention is to provide an operator fixture for an electronic device that can hold an operator in a semi-fixed state and easily confirm the set position of the operator.

This invention will be described in detail below based on embodiments shown in the drawings.

Fig. 1 is a front view of the operator fixture according to the invention when used in a power amplifier device, Fig. 2 is a perspective view of the fixture, and Fig. 3 is a sectional view showing the fixture in its installed state. be. In these figures, there are three controls 3 to 3 on the front panel 2 of the power amplifier device 1.
5 and 6 light emitting diodes 6 to 11 are incorporated.

The operator 3 on the left end is operatively connected to the operator of a power switch (not shown) consisting of a push switch, while the two operators 4 and 5 on the right are rotary variable resistors that constitute volume adjustment switches for each amplifier. They are each fixed to the rotating shaft of a device (not shown), and face operator mounting holes 12 and 13 formed in the front panel 2, respectively.

These two operators 4 and 5 have disk portions 4A and 5A each having a concave surface, and a disk portion 4A and a disk portion 4A and a disk portion 5A each having a concave surface.
A knob portion 4 having an appropriate width and integrally protruding in the diametrical direction at the center of the surfaces of the panels A and 5A, the surfaces of which are substantially flush with the surface of the front panel 2.
B, 5B, and near one end of the surface of each knob part 4B, 5B, a volume display part 14, 15 consisting of a thick straight line is displayed by printing or engraving, respectively. By pinching the knobs 4B, 5B with fingers and rotating the operators 4, 5 left and right, the volume of the left and right amplifiers can be freely changed. Incidentally, on the surface of the front panel 2 and around the operator mounting holes 12 and 13, numbers 16 are displayed to indicate the volume of the volume.

After the operators 4 and 5 have been set at one end, when it is desired to fix them at the set position, the operator fixture 20 is used. The operator fixture 20 is removably fitted and fixed to the operators 4 and 5, and is integrally formed of an elastic body with a large coefficient of friction such as rubber. A disk portion 21A having an outer diameter somewhat larger than the diameter of the holes 12 and 13, and two finger recesses 22a and 22b provided at the center of the back surface of the disk portion 21A and the front surfaces of the operators 4 and 5. A pair of fitting protrusions 21B and 21C are provided to protrude correspondingly and constitute the fixture body 21 together with the disc part 21A, and the disc part 21
A display section 23 is formed near the outer periphery of A, corresponding to the volume display section 16 of the controls 4 and 5. This display section 23 is constituted by a long hole elongated in the diameter direction of the disc section 21, and includes the pair of fitting protrusions 21B,
It is located between 21C. The groove between the pair of fitting protrusions 21B and 21C constitutes a fitting groove 24 into which the knobs 4B and 5B of the operators 4 and 5 are fitted and engaged.

FIGS. 1 and 3 show a state in which the operator fixture 20 having the above structure is fitted and fixed to the operator 4, in which the pair of fitting protrusions 21B and 21C are connected to the finger recesses 22a and 22b. By fitting and engaging the knob portion 4B into the fitting groove 24, the fixture 20 is prevented from falling off from the operator 4. In this case, if the width of the fitting groove 24 is set somewhat smaller than the width of the groove width knob 4B, the pair of fitting protrusions 21
Since the knobs 4B and 21C are designed to pinch and hold the knob 4B, it is possible to more reliably prevent the operator fixture 20 from falling off due to vibration or the like. In addition, the disk portion 21
The rear peripheral edge of A has operator mounting holes 12 all around the circumference.
Since it is in close contact with the periphery of the controller 4, rotation of the operator 4 is prevented. That is, the operation element 4 is prevented from rotating due to the frictional resistance between the front panel 2 and the disk portion 21A,
When an operating force that overcomes this is applied to the operator fixture 20, it rotates integrally with the fixture 20, so it is normally held in a semi-fixed state and maintains the optimum set position. Moreover, the operator 4 is connected to the operator fixture 2.
Since it is covered by 0, it cannot be touched or tampered with. In addition, since the volume display section 14 of the operator 4 faces the display section 23 of the operator fixture 20 and is visible from the front, the set position can be confirmed in exactly the same way as when the fixture 20 is not fitted. be able to.

FIGS. 4 and 5 are a perspective view of an operator fixture showing another embodiment of this invention and a sectional view showing its attached state. In this embodiment, electrical parts 3 such as a volume disposed within the main body of the device are used.
A rotary shaft 33 of No. 2 projects outward from a small hole 34 of the front panel 2, and an operator 30 is attached to the projecting end. The operator 30 is formed into a cylindrical shape with an open rear surface, and has a display section 35 and two finger rests 36a and 36b consisting of a recessed section on the front surface, and a finger rest section 36a, 36b that fits into the rotating shaft 33 at the center of the interior. A cylindrical portion 37 is integrally provided in a protruding manner.

The operator fixture 40 that is fitted and fixed to the operator 30 is integrally formed of an elastic body such as rubber, has an open rear surface, and has an inner diameter that is approximately the same as the outer diameter of the operator 30. A fixture main body 41 having a cylindrical shape, a display section 42 consisting of a protruding strip provided on the surface periphery of the fixture main body 41,
The finger rest portions 36a, 3 of the operator 30 are provided on the inner bottom surface of the
A pair of protrusions 43a, 4 provided corresponding to 6b
3b, and a pair of long grooves 44a, 44b opening at the rear end are formed in the peripheral surface of the fixture main body 41 at axially symmetrical positions, and these long grooves 44a, 44b facilitate the deformation of the fixture 40 itself. , operator 3
0 is easy to fit. And controller 3
The operating element fixture 40 fitted into the operating element 30 fixes and holds the operating element 30 at the set position due to the frictional resistance caused by the contact between the rear end surface 47 and the front panel 2. In this case, the set position of the operator 30 can be easily confirmed by the display section 42 of the operator fixture 40.

In addition, in each of the above embodiments, the operator fixture 2
Although the fixture bodies 21 and 41 of No. 0 and 40 are made of rubber, the present invention is not limited thereto, and may be made of plastic material or integrally made of plastic and rubber. It is also possible to use an elastic material that has a high frictional resistance with the panel surface. Further, the shape, structure, etc. of the fixture itself are not limited to those of the above embodiments, and, for example, as in the fixture 50 shown in FIG. Four arc-shaped protrusions 51B to 5
1E and a pair of opposing protruding walls 51F and 51G that protrude in the diametrical direction form a fixture main body 51, and various modifications such as providing a display section 52 on the disk section 51A are possible.

As explained above, in the operator fixing device according to the present invention, the fixing device body formed of an elastic body is fitted and fixed onto the operator, and the operator is semi-fixed by frictional resistance with the panel surface. Since the controller is configured to be held in the same position, the controller cannot be tampered with by outsiders, and a good set state can be maintained.Especially, once the controller is set, it is not necessary to change it much. This can prevent erroneous operations. In addition, since the fixing device can be attached and detached with one touch, it is easy to handle and is inexpensive, which has great practical effects.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the operator fixture according to this invention applied to a power amplifier device, Fig. 2 is a perspective view of the fixture, and Fig. 3 is a state in which the fixture is installed. 4 and 5.
The figures are a perspective view and a sectional view showing another embodiment of this invention, and FIG. 6 is a perspective view showing another embodiment of this invention. 1...Power amplifier device, 2...Front panel,
4, 5...Controller, 14,15...Volume display section,
20... Operator fixture, 21... Fixture body, 2
3...display section, 30...operator, 35...display section, 40, 50...operator fixture.

Claims (1)

[Scope of utility model registration request] It is formed of an elastic body, and is removably fitted and fixed to an operator disposed on a panel surface of an electrical device, and comes into contact with the panel surface, thereby preventing the rotation of the operator from frictional resistance with the panel surface. An operator fixture for an electronic device, comprising: a fixture body that is blocked by a fixture body; and a display section provided on a surface of the fixture body in correspondence with the display section of the operator.