JPH0739149Y2 - Knob switch for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a knob switch for a vehicle, in which two rotary switches are concentrically supported at the tip of a support base for operating a centralized switch provided in a steering column of the vehicle. Related to the improvement of.

[Prior Art] Conventionally, as this kind of technology, for example, Japanese Patent Laid-Open No. 58-2255
There is a technology related to Japanese Patent Publication No. 14 and the like. In this, a contact mounting plate having fixed contacts for two rotary switches and a supporting rod are fixed to the opening of the tubular switch case, and the operating barrel for each rotary switch is rotatably supported on the supporting rod. A spacer is fixed to the support rod between the operating cylinders. Thus, the spacer imparts a sense of moderation in the rotating direction of each operating cylinder. When the first operating cylinder supported by the tip of the support rod is rotated, the first movable contact comes into contact with and separates from the fixed contact via the hollow rod inserted through the support rod. Further, when the second operation cylinder is rotated, the second movable contact comes into contact with and separates from the fixed contact.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional technique, the spacer for giving a detent in the turning direction of each operation tube and the contact mounting plate having the fixed contact are separated, 1 is a configuration including a hollow rod for transmitting the rotational force of the operating cylinder to the first movable contact,
The structure is complicated, the number of parts is large, and the assemblability is poor.

[Means for Solving Problems] The present invention has been made in view of the above problems, and is for a vehicle in which a hollow support base is concentrically supported with two rotary switches each including a combination of two rotary knobs. In the knob switch, a first rotary knob is rotatably supported on a step shaft formed at a tip of the support base, and a fixed plate is fixed to a tip of the step shaft, and the fixed plate is concentric with the first rotary knob. At the tip of the operation shaft, the second rotary knob is mounted rotatably relative to the fixed plate, on the surface of the fixed plate facing the rotary knob,
In addition to disposing fixed contacts respectively, disposing a moderating mechanism that cooperates with each of the rotary knobs to impart a sense of moderation in the rotation direction, and to each of the rotary knobs, a movable contact that slides in contact with the corresponding fixed contact is provided. The above-mentioned problem is solved by disposing the fixed contacts and connecting the fixed contacts to the lead wires inserted into the hollow portion of the support base to form a knob switch for a vehicle.

[Operation] According to the above-described configuration, the moderation mechanism of the rotary switch disposed on each rotary knob and each fixed contact are centrally arranged on the fixed plate interposed between the two rotary knobs, and the movable contact is directly connected to each rotary knob. Since it is provided, it is possible to provide a vehicle knob switch having a simple structure, a small number of parts, and good assembling.

[Embodiment] A preferred embodiment of a vehicle knob switch according to the present invention will be described.
The details will be described with reference to the accompanying drawings.

Reference numeral 1 is a support base having a hollow portion 1a for operating a centralized switch (not shown) provided on the steering column of the vehicle. Stepped shafts 1b and 1c are formed at the tip of the support base 1. A first rotary knob 2 is rotatably supported on the step shafts 1b and 1c. Also, at the tip of the step shaft 1b, the fitting hole 1d
The fixing plate 3 is fixed by elastic fitting of the engaging projections 3a formed on the fixing plate 3. The fixed platen 3 is integrally formed with a base portion 3b which is inserted into the hollow portion 1a of the support base 1.

The base portion 3b is a shaft hole penetrating concentrically with the first rotary knob 2.
The operation shaft 4 is rotatably supported by 3c. 3d is a stepped portion that prevents the operation shaft 4 from moving toward the tip of the stepped shaft 1b. A second rotary knob 5 is fixed to the tip 4a of the operating shaft 4 with a pin 6.

On the surface 3e of the fixed board 3 facing the first rotary knob 2, fixed contacts 8 to 11 of the first rotary switch 7 are provided by integral molding, and a moderation peak 2a formed on the first rotary knob 2 is formed. A ball 12 as a moderating mechanism that cooperates to give a feeling of moderation in the rotating direction is inserted into the hole 3f by being biased by the compression spring 13. The first rotary knob 2 has a first movable contact urged toward the fixed contacts 8 to 11 by a compression spring 14.
15 are arranged.

Further, in the fixed platen 3, on the surface 3g facing the second rotary knob 5, the fixed contacts 17 to 19 of the second rotary switch 16 are provided.
Is integrally formed, and a ball 20 as a moderation mechanism for providing a moderation sensation in the rotation direction in cooperation with the moderation ridge 5a formed on the second rotary knob 5 is provided with a compression spring in the hole 3h. It is biased by 21 and inserted. Second rotary knob 5
Is provided with two second movable contacts 23 and 24 biased by the compression spring 22.

The terminals 8a to 11a and 17a to 19a of the fixed contacts 8 to 11 and the fixed contacts 17 to 19 project to the back surface side of the base portion 3b and are inserted into the hollow portion 1a of the support base 1 through the lead wire 25.
, And is connected with solder.

Thus, the first rotary switch 7 is composed of the first rotary knob 2, the fixed plate 3, the fixed contacts 8 to 11, the first movable contact 15, the ball 12, the compression spring 13 and the moderation peak 2a. Also, the second
The rotary switch 16 includes the second rotary knob 5 and the operation shaft 4.
It is composed of a fixed board 3, fixed contacts 17 to 19, second movable contacts 23 and 24, a ball 20, a compression spring 21 and a moderation peak 5a.

Reference numeral 26 denotes an actuating shaft, which is rotatably supported in the support base 1, and one end of which is connected to the operating shaft 4 by a flexible wire 27. The other end of the operating shaft 26 is connected to a switch mechanism (not shown) in the centralized switch of the vehicle and transmits the rotational operation force of the second rotary knob 5 to perform the switch operation.

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

When the first rotary knob 2 is rotated, the first rotary switch 7 causes the first movable contact 15 to come into sliding contact with the fixed contacts 8 to 11 to perform predetermined switch switching.

In addition, the second rotary switch 16 includes the second rotary knob 5
When the second movable contacts 23 and 24 are rotated,
Sliding contact with 19 and switching the specified switch.

In the vehicle knob switch thus configured, for example, the first rotary switch 7 is used as a wiper switch for switching the wiper between high speed operation, low speed operation and intermittent operation, and the second rotary switch 16 is used as a headlamp or It can be used as a light switch to switch on / off the fog lamp.

In the above embodiment, the balls 12 and 20 arranged on the fixed platen 3 and biased by the compression springs 13 and 21, respectively, and the moderation ridges 2
a and 5a each constitute a moderation mechanism in a pair, and the arrangement relationship between the balls 12 and 20 and the moderation peaks 2a and 5a may be opposite to that of the above-described embodiment, for example, the first rotary knob. Two
The hole 12 may be formed in the hole and the ball 12 may be inserted therein.

Further, the operation shaft 4 is rotatably supported by the fixed platen 3 in order to transmit the rotational operation force of the second rotary knob 5 to the operation shaft 26, but is not limited to this. It suffices that the second rotary knob 5 be rotatable relative to the fixed platen 3. For example, when the operating shaft 26 is unnecessary, the operating shaft 4 is fixed to or integrally formed with the fixed platen 3,
The rotary knob 5 may be rotatably supported on the operation shaft 4.

[Effects of the Invention] As described in detail above, according to the present invention, the moderating mechanism of each rotary switch and each fixed contact are centrally arranged on the fixed board interposed between the two rotary knobs, and the movable contact is provided to each rotary knob. Since it is directly arranged, it is possible to provide a vehicle knob switch having a simple structure, a small number of parts, and excellent assembling.

[Brief description of drawings]

1 to 3 show an embodiment of a vehicle knob switch according to the present invention. FIG. 1 is a vertical sectional view showing an assembled state, and FIG. 2 is a direction of arrow A-A in FIG. 3 is a sectional view taken along line BB in FIG. 1 ... Support base, 1a ... Hollow part, 2 ... First rotary knob, 2
a, 5a ... Moderation mountain, 3 ... Fixed plate, 3b ... Base, 3c ... Shaft hole, 4 ...
Operation shaft, 5 ... Second rotary knob, 7 ... First rotary switch, 8-11 ... Fixed contact, 12,20 ... Ball, 13,21 ... Compression spring, 15 ... First movable contact, 16 ... Second rotary switch, 17
~ 19 ... Fixed contact, 23, 24 ... 2nd movable contact, 25 ... Lead wire

Claims (1)

[Scope of utility model registration request] 1. A knob switch for a vehicle, wherein a hollow support base is concentrically supported with two rotary switches each including a combination of two rotary knobs, wherein a step shaft formed at a tip of the support base is provided with a first rotary knob. It is rotatably supported, a fixed plate is fixed to the tip of the step shaft, an operation shaft is mounted on the fixed plate concentrically with the first rotary knob, and a second rotary knob is fixed to the end of the operation shaft. Mounted so as to be rotatable relative to the board, on the surface of the fixed board facing the rotary knobs,
In addition to disposing fixed contacts respectively, disposing a moderating mechanism that cooperates with each of the rotary knobs to impart a sense of moderation in the rotation direction, and to each of the rotary knobs, a movable contact that slides in contact with the corresponding fixed contact is provided. A knob switch for a vehicle, wherein the fixed contacts are provided and the fixed contacts are connected to lead wires inserted into the hollow portion of the support base.