JPH0334893Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a slider operating device for an electrical component suitable for sliding operation of a slider of an electrical component such as a variable resistor.

[Technical background of the invention]

For example, in a refrigerator, an operation panel is attached to the front part of the refrigerator door, and a printed circuit board serving as a mounting board is attached to the back side of this operation panel, and a slider passes through the operation panel to the printed circuit board and extends forward. A variable resistor for temperature adjustment, which is an electrical component that protrudes from the variable resistor, is attached, and an operating button is press-fitted into the slider of the variable resistor to apply a sliding operating force.

[Problems with background technology]

In the above configuration, when the operation button is operated, the operation button is tilted so that the fitting part with the slider is the fulcrum, and the part on the opposite side from the fitting part comes into pressure contact with the front part of the operation panel. The frictional resistance caused by the sliding impairs the smoothness of the operation of the operation button, resulting in poor operability.In addition, the operation button may damage the front part of the operation panel due to sliding. There's a problem.

[Purpose of invention]

The present invention has been made in view of the above circumstances, and its purpose is to provide a slider operating device for electrical components that has excellent operability and can eliminate the problem of damage to the operating panel as much as possible.

[Summary of the idea]

The present invention reduces the contact area of the operation button with the operation panel by protruding a sliding protrusion on the back side of the operation button that locally contacts the front side of the operation panel. That is.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

Reference numeral 1 denotes an operation panel attached to a refrigerator door (not shown), and a mounting protrusion 2 is protruded from the back side of the operation panel, and a printed circuit board 3 serving as a mounting board is attached to this mounting protrusion 2 with mounting screws 4. Fixed. 5 is a variable resistor for temperature adjustment which is an electrical component attached to the front part of this printed circuit board 3;
The slider 5a that can freely slide in the vertical direction is the operation panel 1.
It extends forward through a through hole 6 formed to extend vertically. Reference numeral 7 designates an operation button, and anti-slip protrusions 8 (having a pointer 8a) and 9 are formed at the upper and lower ends of its front surface, and a plurality of uneven stripes are formed at the middle of the front surface. A portion 10 is formed. Further, on the back surface of the operation button 7, a fitting recess 11 corresponding to the slider 5a of the variable resistor 5 is formed at the upper end, and a substantially hemispherical groove is formed at the lower end corresponding to the fitting recess 11. A sliding contact protrusion 12 having a shape is formed. The operation button 7 is attached to the slider 5a by press-fitting the fitting recess 11 into the tip of the slider 5a of the variable resistor 5. In this case, the sliding contact protrusion 12 The front face of the operation panel 1 is opposite to this with a slight space left.

When operating the slider 5a of the variable resistor 5, the operating button 7 is moved up and down while the finger 13 is pressed against the uneven strip 10 of the operating button 7. At this time, the sliding protrusion 12 comes into contact with the front surface of the operation panel 1 and slides thereon.

According to this embodiment, the following effects can be obtained. That is, when the operation button 7 is operated with the finger 13, the sliding contact protrusion 12 locally contacts the front surface of the operation panel 1, that is, makes point contact, so that the degree of inclination of the operation button 7 is extremely small and the sliding contact is made. Projection 1
The contact area of 2 with the front surface of the operation panel 1 is reduced, and therefore the frictional resistance is reduced, making the operation of the operation button 7 smooth and excellent in operability.
Since the front part of the operation panel 1 does not wear out so much, the problem of damage can be eliminated as much as possible. Moreover, since the frictional resistance when operating the operating button 7 is reduced, the operating button 7 can be made larger, which also allows the anti-slip protrusions 8 and 9 to be made larger, further improving operability. This is excellent, and the pointer 8a on the protrusion 8 can also be made larger, making it easier to see.

In the above embodiment, the operating button 7 is provided with a substantially hemispherical sliding protrusion 12;
As in another embodiment of the present invention shown in the figure, a sliding contact protrusion 14 of a protrusion having an arcuate cross section is provided protrudingly from the operation panel 1.
It is also possible to make local contact, ie, line contact, with the front surface of the holder.

In addition, the present invention is not limited only to the embodiments described above and shown in the drawings, and can be applied not only to variable resistors but also to any electrical equipment having a slider without departing from the gist. Of course, it can be implemented with appropriate modifications within the scope.

[Effect of idea]

As explained above, the present invention includes a protruding sliding protrusion that locally contacts the front surface of the operation panel at the end corresponding to the fitting portion with the slider on the back surface of the operation button. Therefore, it has excellent operability and has practical effects such as not causing much damage to the operation panel.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention,
Fig. 1 is a longitudinal sectional side view of the whole, Fig. 2 is a perspective view of the operation button from the front side, Fig. 3 is a perspective view of the operation button from the rear side, and Fig. 4 is another embodiment of the present invention. FIG. 3 is a diagram corresponding to FIG. 3 showing an example. In the drawing, 1 is an operation panel, 3 is a printed circuit board (mounting board), 5 is a variable resistor (electrical component), 5a is a slider, 7 is an operation button, 11 is a fitting recess, 12 and 14
indicates a sliding protrusion.

Claims (1)

[Scope of utility model registration request] A mounting board attached to the back side of the operation panel,
A slider attached to this mounting board penetrates the operation panel and protrudes forward, and is press-fitted into the slider of this electrical component to apply a sliding operation force to the slider. an operating button that protrudes from an end of the back surface of the operating button that corresponds to the fitting portion with the slider, and that contacts locally at least the front surface of the operating panel when the operating button is operated; A slider operating device for electrical equipment, comprising a contact protrusion.