JP2500429Y2 - Switch device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device, and more particularly to a switch device in which a resistance value of a rotary type variable resistor and a slide switch can be operated by the same operation shaft.

[0002]

2. Description of the Related Art A switch for adjusting and switching the instrumentation of an automobile has a large number of operations and is operated at the same time, for example, the switch for switching the illuminance of the headlamp of the automobile and the illuminance control switch of the instrument panel in the driver's seat. There are many.

[0003]

In the prior art described above, it is desired that the switch for switching the illuminance of the headlamp and the illuminance control switch of the instrument panel in the driver's seat be performed by one knob as the same switch device.

Further, in the case where a heat generating member is present close to the surroundings in a limited space such as an automobile, if this kind of switch device is arranged, the adjustment switching operation is normally performed by heat. Not always. In addition, 2 switches
It was also disadvantageous in terms of space because it was arranged in places.

The present invention has been made in view of the current state of the switch device of this kind as described above, and its purpose is to:
It is an object of the present invention to provide a switch device capable of performing adjustment switching of a plurality of systems with one knob, improving operability, downsizing, and cost reduction.

[0006]

The object of the present invention is to attach an operating shaft to a housing so that the operating shaft is rotatable, and to be movable in the axial direction of the operating shaft. A switch device in which a resistance value of a variable resistor provided in the housing is changed, and a slide of a slide switch portion provided in the housing is moved by a movement operation of the operation shaft in the axial direction to switch contacts. In the rotating shaft of the variable resistor, a kerf is formed from the tip surface of the variable resistor with a length that allows the movement range of the operating shaft, and the end of the operating shaft is formed in the kerf. It is achieved by interlocking the operation shaft and the rotation shaft by forming and fitting them in accordance with the above.

[0007]

With the above-mentioned means, a cutting groove is formed on the rotary shaft of the variable resistor from the tip surface thereof so as to allow the movement range of the operating shaft, and the end portion of the operating shaft is formed in the cutting groove. The operation shaft and the rotating shaft are made to interlock with each other by being formed and fitted according to the shape of the above.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Here, FIG. 1 is an explanatory view including a cross-sectional portion showing the configuration of the embodiment when not in operation, FIG. 2 is an explanatory view of the embodiment when the switch is pushed in, and FIG. 3 is a sectional view taken along the line AA of FIG. 4 is shown in FIG.
5 is a sectional view taken along line BB of FIG. 5, FIG. 5 is a sectional view taken along line CC of FIG. 1, and FIG. 6 is a sectional view taken along line DD of FIG.

Reference numeral 1 denotes a housing. The housing 1 is formed of a cylindrical rectangular parallelepiped whose one side surface is a lower surface, and an upper portion of which is continuous with the cylindrical rectangular parallelepiped and extended in the axial direction. The cylindrical body is provided with an opening 1a at its extended end. A slide 3 is housed in the housing 1 so as to be movable in the axial direction (vertical direction in FIG. 1) by the concave-convex engaging portion 2 on the sliding surface with the inner peripheral surface of the housing 1. A recess 3b for escape is formed in the housing 3, and the variable resistor 5 is arranged on the bottom surface (a substrate 11 described later) of the housing 1 accommodated in the recess 3b. In addition, the slide 3 is formed with a tubular body portion extending upward in FIG. 1, and an opening 3a is provided at an end of the tubular body portion.

On the other hand, the operating shaft 7 having a knob 8 fixed to one end from the opening 1a of the housing 1 is
The opening 1a is inserted into the inside and serves as a bearing portion. The other end of the operating shaft 7 in the housing 1 is connected to the rotating shaft 5a of the variable resistor 5 and is rotatably engaged with the opening 3a of the slide 3. That is, the operating shaft 7 inserted into the housing 1 penetrates the opening 3a, and one end side of the insert lever 6 formed by molding is fitted and fixed to the end portion of the operating shaft 7. A connecting flat plate portion 6b is formed on the other end side of the insert lever 6 in the diametrical direction, and the connecting flat plate portion 6b is the rotating shaft 5a of the variable resistor 5.
Is inserted into and connected to the cut groove 5b provided on the end face.
The cut groove 5b is cut to a depth that allows the operation shaft 7 to move. An E-ring 10 is fitted into the end of the operation shaft 7 and abuts on the outer edge of the opening 3 a of the slide 3. Further, an O-ring 27 made of rubber is arranged on the inner surface of the opening 3a on the peripheral surface of the insert lever 6 as a friction setting means, and a holder 28 for holding the O-ring 27 is arranged. Therefore, the O-ring 27, the holder 28, and the slide 3 are fixed in the axial direction of the operating shaft 7 by the insert lever 6 and the E-ring 10, while the operating shaft 7 rotates relative to the slide 3. It is free to move.

The wiring board 11 is fixed to the housing 1 so as to cover the tubular rectangular portion of the housing 1 and the open surface of the recess 3b of the slide 3. A fixed contact 12 constituting a slide switch portion is provided on the wiring board 11.
a, 12b, 12c and fixed contacts 13a, 13b are formed by printing, and movable contacts 15, 16 sliding on these fixed contacts are fixedly mounted on the sliding surface of the slide 3, respectively.

Further, holes 17 and 18 are provided on the surface of the slide 3 opposite to the surface on which the movable contacts 15 and 16 are provided, and the balls 22 and 23 are provided in the holes 17 and 18 via springs 20 and 21, respectively. Are arranged. On the other hand, in the housing 1, metal click plates 25 and 26 having click recesses 25a and 26a are embedded in the inner wall of the housing 1, and the balls 22 and 23 are resiliently moved by the springs 20 and 21 in the click plates 25 and 26. It is touched. This makes knob 8
When is pushed in, the slide 3 has a click feeling and moves in three steps to switch the contacts.

Further, a convex piece 6a is formed on the outer peripheral surface of the insert lever 6, and a convex piece 6a is formed on the inner peripheral surface of the slide 3.
A convex piece 3c that engages with is integrally formed, and the convex piece 6a and the convex piece 3c constitute a stopper that restricts the range of rotation of the variable resistor 5.

Next, the operation of the above embodiment will be described.

First, the operation of the slide switch section will be described. FIG. 1 shows the non-pushed-in state, in which fixed contacts 12a, 12b, 12c are short-circuited by movable contact 15 and fixed contacts 13a, 13b are short-circuited by movable contact 16. When the knob 8 is pushed in one step from the first step state shown in FIG. 1,
As described above, the slide 3 is also pushed in together with the operation shaft 7, the ball 23 falls into the next hole 26a, and the second feel is switched with a click feeling. In this second-stage switching, the fixed contacts 12a and 12b are short-circuited to each other by the movable contact 15, and the movable contact 16 and the fixed contact 13a are in a connected state. Further, when the knob 8 is pushed further by one step, the ball 23 falls into the next hole 26a and has a click feeling, so that the state is switched to the third step as shown in FIG. 2. In this state, the movable contact 15 and the fixed contact 1
2a is connected to the movable contact 16 and the fixed contact 13
a is also in the connected state. In this way, the slide switch portion is switched by the movement of the slide 3, so that the entire apparatus can be downsized, and the switch switching operation with a clear click feeling can be performed.

The balls 22 and 23, which perform a click operation during the switching operation of the slide switch, slide on the metal click plates 25 and 26, and click recesses 25.
A click operation is carried out by falling on a and 26a and sliding again on the click plates 25 and 26. Since the metal click plates 25 and 26 are provided in this manner, the click plates 25 and 26 are not affected by heat even if the wall surface of the slide 3 is deformed to some extent due to heat from the outside. The click recesses 25a, 26 of the click plates 25, 26
The click operation can always be performed at a predetermined position with a, the click feeling received by the operation of the knob 8 is constant, and does not change with temperature even in an environment having a heat generating portion such as an automobile.

Next, the resistance setting operation by the variable resistor 5,
That is, the turning operation of the knob 8 will be described.

When the knob 8 is rotated, the operation shaft 7 and the insert lever 6 are integrally rotated with respect to the slide 3. Since the flat plate portion 6b of the insert lever 6 is inserted into the cut groove 5b of the rotary shaft 5a of the variable resistor 5, the rotary shaft 5a is also rotated along with the rotation of the insert lever 6, and the resistor 5a. Is variable. As described above, the operation shaft 7 is pushed, but since the depth of the kerf 5b is set so as to allow the movement range of the operation shaft 7, the operation shaft 7 can be rotated in any switching state. You can operate.

Further, at the time of this turning operation, since a predetermined frictional resistance is given to the operating shaft 7 (actually the insert lever 6) by the O-ring 27, stable and accurate adjustment can be performed.

As described above, according to the embodiment, the stable switch operation and the resistance value setting operation can be performed by the operation of the common knob 8, the operability is improved, and the space saving can be achieved. Cost can be reduced.

In addition, the click operation of the balls 22 and 23 is not affected by heat, and the metal click plates 25 and 2 are not used.
The switch switching operation can be performed with a stable click feeling at all times, and the overall weight and size can be reduced.

[0022]

As described above, according to the present invention,
A switch device that improves operability, saves space, enables common use of parts, reduces costs, and provides a click feeling without being affected even when used in a high temperature atmosphere. Can be provided.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a non-operation state of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an operating state of an embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG.

5 is a sectional view taken along line CC of FIG.

FIG. 6 is a cross-sectional view taken along line DD of FIG.

[Explanation of symbols]

 1 Housing 1a Open 3 Slide 3a Open 3c Convex Piece 5 Variable Resistor 5a Rotating Axis 6 Insert Lever 7 Operating Axis 8 Knob 10 E-ring 11 Wiring Board 12a-12c Fixed Contact 13a, 13b Fixed Contact 15, 16 Moving Contact 20, 21 springs 22,23 balls 25,26 click plates 27 O-rings 28 holders

Claims (3)

(57) [Scope of utility model registration request] 1. A resistance of a variable resistor provided in the housing, which is attached to a housing such that the operation shaft is rotatable and is movable in a direction of an axis of the operation shaft. In the switch device in which the value is changed and the contact is switched by moving the slide of the slide switch part provided in the housing by the operation of moving the operation shaft in the axial direction, the rotation of the variable resistor is changed. A cutting groove is formed on the moving shaft from the tip end surface thereof in a length that allows the movement range of the operation shaft, and the end portion of the operation shaft is formed in the cutting groove so as to match the shape of the cutting groove. The switch device is characterized in that the operation shaft and the rotation shaft are interlocked with each other. 2. A resistance of a variable resistor provided in the housing, which is attached to a housing such that the operation shaft is rotatable and is movable in a direction of an axis of the operation shaft. In a switch device in which a value is varied and a contact is switched by moving a slide of a slide switch part provided in the housing in accordance with a movement operation of the operation shaft in the axial direction, rotation of the operation shaft. A switch device comprising friction setting means for setting sliding friction during operation. 3. A resistance of a variable resistor provided in the housing, which is attached to a housing such that the operation shaft is rotatable and is movable in a direction of an axis of the operation shaft. In a switch device in which a value is changed and a contact is switched by moving a slide of a slide switch part provided in the housing by a movement operation of the operation shaft in the axial direction, the slide and the housing are The switch device is characterized in that a click means for positioning the slide in a plurality of stages is provided, and a metal plate having a click hole constituting the click means is embedded in the inner surface of the housing.