JPS5819083Y2 - Variable resistor for wiper control housed in the end of the wiper operating lever in an automobile combination switch - Google Patents

Description

[Detailed description of the invention] The present invention relates to a variable resistor for controlling a wiper that is housed at the end of a wiper operating knob in a combination switch for automobiles, and particularly provides a variable resistor that can be rotated in a controlled manner to vary the resistance value. This is what I am trying to do.

Conventionally, there have been combination switches for automobiles that are equipped with an operation lever for switching the turn signal circuit and the headlight circuit, and a wiper operation lever for switching the wiper circuit. In order to vary the number of wiper operations, a variable resistor is provided at the end of the wiper operating lever, or a switch is provided to switch the resistance value into several stages.

The former type of variable resistor is convenient for continuously varying the wiper operation, but when you want to rotate the wiper to a desired number of positions and then stop it, there is no click feeling, making it inconvenient to operate. The latter switch had the inconvenience of not being able to finely adjust the wiper operation.

This invention was devised to solve the above-mentioned problems. A variable resistor is installed at the end of the wiper operating knob, and the variable resistor can continuously vary the resistance value within a certain rotation angle. In addition, a click feeling is given at each desired fixed angle, so that a specific operating state can be quickly switched.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

In FIG. 1, 1 is a knob, which has a chamber 2 and to which a lever 3 communicating with the chamber 2 is fixed.

A stepped portion 4 is formed in the chamber 2 of the knob 1, and a substrate 5 is placed thereon.

The substrate 5 has a resistive film and terminals (not shown) on its surface.

A movable element 6 has a spring housing groove 7 to house a spring 8, and one terminal of a shaft 9 is attached thereto.

The spring 8 biases the slider 10 to press it against the resistive film of the substrate 5.

Reference numeral 11 denotes a fixing member into which the shaft 9 is rotatably inserted, the negative end of which pushes the board 5, and the other end of which is screwed into the step 13 formed in the knob 10 chamber 2 by means of a screw 12. Fixed.

The fixing member 11 is thus accommodated in the chamber 2 of the knob 1.

The fixing member 11 also has a receiving hole 14 for accommodating a spring 15 and a steel ball 16 biased by the spring 15.

A knob 11 is fixed to the shaft 9 with a locking spring 18 interposed therebetween.

The knob 17 has a moderation of -19 on the knob 1 side, and when the knob 17 is rotated, it cooperates with the spring 15 and the steel 16 to rapidly increase the rotational resistance when the knob 17 is rotated by a certain angle.

The moderation hole 19 (see FIG. 3) may also be used as a moderation hole 19' (see FIG. 4).

Incidentally, the shaft 9 is fitted with retaining rings 20 and 21 so that it cannot freely move forward or backward relative to the fixed member 11.

22 is a lead wire connected to a terminal of the board 5.

The shaft 9 is also molded with a body part 29 to provide a grease stop between it and the fixing member 11.

FIG. 2 shows a combination switch for an automobile, in which 23 is an operating lever for switching between the turn signal circuit and the headlight circuit, 24 is a wiper operating lever for switching the wiper circuit, and the wiper operating lever 24 is as explained in FIG.

Reference numeral 25 denotes a main body, which includes a hole 26 for mounting on the steering wheel shaft of an automobile, a switch section 27 that can be switched by the operating lever 23, and a switch section 28 that can be switched by the wiper operating lever 24.

The operating speed of the wiper can be varied by operating the wiper operating lever 24 parallel to the rotating direction of the handle (not shown), and the washer operating speed can be varied by operating the wiper operating lever 24 perpendicular to the rotating direction of the handle. The switch section 28 is configured so as to be able to operate.

Thus, the board 5 incorporated into the wiper operating lever 24
A variable resistor including a slider 10, a movable element 6, etc. can continuously vary the wiper from a stopped state to a continuously operating state, and can continuously vary the intermittent operating cycle during the period.

Further, the variable resistor can be rotated by rotating the knob 17 by a certain angle in cooperation with the spring 15 and the steel ball 16 housed in the moderation -19 or moderation hole 19' of the knob 17 and the accommodation hole 14 of the fixed member 11. The dynamic resistance increases rapidly, giving the driver a clicking sensation.

If it is desired to obtain several click points during one rotation of the knob 17, the corresponding number of detents -19 or detent holes 19' may be provided.

This also allows the knob 17 to be quickly switched to a predetermined position.

Furthermore, the knob 17 can be stopped at a desired rotational position while reaching each click point.

Next, the operation will be explained.

As mentioned above, the shaft 9 is attached to the knob 17, and the shaft 9 is also fixed to the mover 6 that rotates the slider 10, so when the knob 1γ is moved, the slider 10 also rotates. The resistance value of the variable resistor can be continuously varied.

By the way, a spring 15 is installed in the accommodation hole 14 of the fixing member 11.
and a steel ball 16 biased by a spring 15, and the knob side of the knob 17 is pressed against the steel ball 16, and the knob side of the knob 17 is provided with a desired number of detents -19 or detent holes. 19' is provided, so mutual moderation -19 or moderation hole 19
'', the knob 17 can be stopped at a desired rotation position, and if the moderation -17 and the steel ball 16 come into contact, the rotation resistance of the knob 17 will rapidly increase, so the knob 17 can be stopped at a predetermined position. can be quickly switched to the desired position.

In the former case, the intermittent operation cycle of the wiper can be varied continuously, and in the latter case, the intermittent operation cycle of the wiper can be varied in steps.

Therefore, the driver can freely and selectively adjust the operating period of the wiper by finely adjusting the operating period of the wiper, and can also perform quick step-by-step switching operations using a single knob.

It is also convenient to operate since it is assembled into a combination switch for automobiles.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a wiper control variable resistor housed in one end of a wiper operating lever in a combination switch for an automobile according to the present invention, and FIG. 2 is a cross-sectional view showing a wiper control variable resistor according to the present invention housed therein. FIG. 3 is a bottom view showing a combination switch for an automobile equipped with a wiper operating lever; FIG. This figure is a perspective view, partially in section, showing a second preferred embodiment of the knob 17 shown in FIG. 1. 1...Tsubu, 2...Room, 3...
Lever, 4... Step part, 5... Board, 6
...Mover, 7...Spring housing groove, 8...Spring, 9...Shaft, 10...Slider, 11 ...Fixing member, 12...Screw, 13...Step part, 14
...Accommodation hole, 15...Spring, 1
6... Steel ball, 17... Knob, 18... Locking spring, 19...
...moderation -, 19'...moderation hole, 20 and 2
1... Retaining ring, 22... Leading wire,
23... Operation lever, 24... Wiper operation lever, 25... Body, 26...
- Holes 27 and 28...Switch section.

Claims (1)

[Scope of utility model registration request] In a variable resistor for controlling a wiper, the variable resistor is housed at the end of a wiper operating lever for switching a wiper circuit provided in a combination switch for an automobile, and the variable resistor has a resistive film on its surface and a knob. The housed substrate, the slider that slides on the resistive film, the movable element that houses the spring that biases the slider, presses the substrate to fix it inside the knob, and presses the substrate and fixes it inside the knob, and the spring and the slider. a fixed member having a housing hole for accommodating a steel ball biased by a spring and rotatably inserting a shaft connected to the movable element; and a fixed member connected to the shaft and biased by a spring. and a knob having a moderation ridge or a moderation hole to come into contact with the steel ball, and by rotating the knob, the resistance value can be continuously varied within a preset rotation range, and A variable resistor for controlling a wiper is housed in one end of a wiper operating lever in an automobile combination switch, which is characterized by being variable in steps.