JP2003257713A - Waterproof control unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a waterproof control unit in waterproofness. <P>SOLUTION: A variable resistor 13 is disposed on a board 12 located in the rear of a panel 11. A non-hole part is provided to the panel 11, and a projection 14 getting protuberant at the front and recessed at the rear is provided to the non-hole part. A control arranged part 15 is formed of the protuberant part of the projection 14, and a controlled unit arranged part 16 is formed of the recessed part. A permanent magnet 18 is buried in a control 17, and the control 17 is arranged at the control arranged part 15 in a rotatable manner. A controlled unit 19 which controls and rotates the variable resistor 13 is fitted to the control unit arranged part 16 in a rotatable manner. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof type operation device for operating an operated device on the back side of a panel with an operator provided on the front side of the panel.

[0002]

Conventionally, as an operating device of this type, there is an operating device configured as shown in FIG. A substrate 2 is arranged in the lower part on the back side of the panel 1, and a variable resistor 3 is arranged therein. The variable resistor 3 has a configuration in which the resistance value changes when the operation shaft 3a is rotated (rotated).

On the other hand, a through hole 1a is formed in the panel 1, and a higher waterproof bank 1b is formed at the peripheral portion of the through hole 1a on the front side of the panel 1. The operation shaft support 3b of the variable resistor 3 is fitted in the through hole 1a, and the operation shaft 3a projects to the front side of the panel 1. A waterproof packing 4 is interposed between the variable resistor 3 and the back surface of the panel 1. A knob 5 as an operator is attached to the operation shaft 3a. This knob 5
By rotating, the operation shaft 3a is rotated to change the resistance value of the variable resistor 3.

In this case, the waterproof bank portion 1b and the waterproof packing 4 prevent water from entering from the panel 1 side to the variable resistor 3 side. However, in the conventional structure described above, the structure for waterproofing is complicated, and there is a possibility that the waterproofness may be deteriorated as the waterproof packing 4 deteriorates.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a waterproof type operation device capable of obtaining reliable waterproof performance.

[0006]

According to a first aspect of the present invention, an operated device provided on a rear surface side of a panel is operated by an operator provided on a front surface side of the panel. And a manipulator arrangement portion for rotatably holding the manipulator is formed on the front side of the non-perforated portion of the panel, and a manipulator for manipulating the manipulator to be operated is rotated on the back side. A manipulator arrangement portion for movably holding is formed, the manipulator is rotatably arranged on the manipulator arrangement portion, and the manipulator is rotatably arranged on the manipulator arrangement portion. It is characterized in that at least one of the operating element and the operated element is provided with a permanent magnet, and the other is provided with another permanent magnet or a magnetic body that exhibits an attracting action with the permanent magnet.

According to the first aspect of the present invention, when the operator on the front side of the panel is rotated, the operated element magnetically coupled to the back side of the panel is integrally rotated. The operating device is operated. In this case, since the non-perforated panel is interposed between the operating element and the operated element, reliable waterproofing can be achieved without requiring waterproof packing or the like.

According to a second aspect of the present invention, a raised portion which is convex on the front side and concave on the back side is bulged and formed in the non-perforated portion of the panel, and the convex portion constitutes an operator placement portion, and the concave portion is formed. Is characterized in that the operated element placement portion is configured with. According to the second aspect of the present invention, the operator arrangement portion and the operated element arrangement portion can be formed only by bulging the raised portion on the panel, which contributes to simplification of the configuration.

A third aspect of the invention is characterized in that a bearing or a lubricant is interposed between the operating element placement portion and the operating element and between the operated element placement portion and the operated element. Have. According to the third aspect of the invention, the rotational friction between the operating element and the operated element is reduced, and the operability is improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIG. A substrate 12 is provided on the lower portion on the back side of the panel 11, and a variable resistor 13 which is an operated device is provided on the substrate 12. The variable resistor 13 has a structure in which the resistance value changes when the operation shaft 13a is rotated (rotated). The upper end of the operating shaft 13a is so-called D-cut.

On the other hand, the panel 11 is non-perforated,
In the non-perforated portion of the panel 11, a raised portion 14 that is convex on the front side and concave on the back side is bulged, and its upper end portion 14a is formed thinner than other portions. The raised portion 14 has a circular planar shape. The convex portion of the raised portion 14 constitutes the manipulator arrangement portion 15, and the concave portion constitutes the manipulator arrangement portion 16.

The operator 17 is made of plastic, for example, and has a circular planar shape, and has a lower surface opening-shaped recess 17a. A permanent magnet 18 is embedded in the manipulator 17, the lower surface of which constitutes a part of the inner surface of the recess 17a. The operation element 17 is rotatably arranged in the operation element arrangement portion 15 by the recess 17a being rotatably fitted in the operation element arrangement portion 15.

The operated element 19 is made of a permanent magnet and has a circular planar shape. The operated element 19 is rotatably fitted and arranged in the operated element arranging portion 16, and a D-shaped hole 19a having a shape matching the D-cut portion 13b of the operating shaft 13a is formed in the lower portion thereof. Has been done. This D-shaped hole portion 19a is the D-cut portion 13b of the operating shaft 13a.
It is fitted and connected to and can rotate integrally. Further, the bearing 2 is provided around the upper portion of the operated element 19.
0 is arranged, and this bearing 20 contributes to the reduction of the frictional force of the rotation of the operated element 19 with respect to the operated element placement portion 16.

In addition, the manipulator 17 and manipulator placement section 15
Although not shown, a lubricant is applied between
This contributes to the reduction of the frictional force of the rotation of the manipulator 17 with respect to the manipulator placement portion 15.

In the above structure, the permanent magnet 18 of the operating element 17 and the operated element 19 made of a permanent magnet, which is a permanent magnet different from the permanent magnet 18, oppose each other via the thin upper end portion 14a of the raised portion 14. The magnetic attraction is exerted between the two. Therefore, when the operation element 17 on the front side of the panel 11 is rotated, the operated element 19 magnetically coupled to the back side of the panel 11 integrally rotates, and as a result, the variable resistor 13 rotates. It is operated and the resistance value changes. In this case, since the non-perforated panel 11 is interposed between the operating element 17 and the operated element 19, reliable waterproofing can be achieved without requiring waterproof packing or the like.

In particular, a raised portion 14 that is convex on the front side of the panel 11 and concave on the back side is bulged, the manipulator placement portion 15 is configured by the convex portion, and the operated subject placement portion 16 is configured by the recessed portion. Therefore, the operation element placement portion 15 and the operated element placement portion 16 can be formed only by bulging the raised portion 14 on the panel 11, which can contribute to simplification of the configuration.

Further, a lubricant is interposed between the manipulator placement portion 15 and the manipulator 17, or rotational friction between the two is reduced. In addition, the operated element placement unit 16 and the operated element 19
Since the bearing 20 is interposed between and, rotational friction between the two is reduced, and operability is improved.

In the above embodiment, the operated element 19 is entirely made of a permanent magnet. However, the operated element 19 is made of, for example, synthetic resin, and only the upper part (a portion facing the permanent magnet 18) is formed. It may be configured by a permanent magnet or a magnetic body.

FIG. 2 shows a second embodiment of the present invention. This embodiment differs from the first embodiment in the following points.
The operator placement portion 31 is formed by a rib having a circular planar shape on the front side of the non-perforated panel 32. Also,
The operated element placement portion 33 is formed on the front side of the panel 32 by a rib having a circular planar shape. And panel 3
The inner portion 33a of the operated element placement portion 33 in 2 is thin.

The operator 34 is made of, for example, a synthetic resin, and a permanent magnet 35 is attached to the lower part thereof. The operated element 36 is made of, for example, a synthetic resin, and another permanent magnet 37 is attached to the upper part thereof. A lubricant (not shown) is interposed between the manipulator 34 and the manipulator placement portion 31, and between the manipulator 36 and the manipulator placement portion 33. Also in the second embodiment, the same effect as in the first embodiment can be obtained.

The present invention is not limited to the above-mentioned embodiments. For example, one of them may be a permanent magnet and the other may be a permanent magnet or a magnetic material. The operated device may be a rotary operation type switch.

[0022]

As is apparent from the above description, the present invention can provide an excellent effect that a reliable waterproof performance can be obtained.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional side view showing a first embodiment of the present invention.

FIG. 2 is an overall vertical sectional side view showing a second embodiment of the present invention.

FIG. 3 is an overall vertical cross-sectional view showing a conventional example.

[Explanation of symbols]

11 is a panel, 13 is a variable resistor (operated device), 14
Is a raised portion, 15 is a manipulator arrangement portion, 16 is a manipulator arrangement portion, 17 is a manipulator, 18 is a permanent magnet, 19 is a manipulator,
Reference numeral 20 is a bearing, 31 is a manipulator arrangement portion, 32 is a panel, 33 is a manipulator arrangement portion, 34 is a manipulator, 35 is a permanent magnet, and 36 is a manipulator.

Claims (3)

[Claims] 1. An operated device provided on the back side of a panel,
In an operation operated by an operator provided on a front surface side of a panel, an operator arrangement in which a non-hole portion is formed on the panel, and the operator is rotatably held on a front side of the non-hole portion of the panel. A manipulator arrangement portion that rotatably holds a manipulator for operating the manipulator to be operated, and the manipulator is rotatable on the manipulator arrangement portion. In addition to arranging, the operated element is rotatably arranged in the operated element disposing portion, at least one of the operating element and the operated element is provided with a permanent magnet, and the other has a permanent magnet and an attraction action. A waterproof type operating device characterized in that another permanent magnet or magnetic body is provided. 2. A non-perforated portion of a panel is formed by bulging a raised portion that is convex on the front side and concave on the back side, and the convex portion constitutes an operating element placement portion, and the concave portion controls the operated element. The waterproof operation device according to claim 1, wherein an arrangement portion is configured. 3. A bearing or a lubricant is interposed between the manipulator arrangement portion and the manipulator and between the manipulator arranged portion and the manipulator. Waterproof operating device.