JPH0119436Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a mounting device for an operating shaft in a vehicle-mounted audio device, such as a car stereo.

A car stereo built into a mounting recess formed in a vehicle's dash board has operating shafts for variable resistors arranged at a predetermined distance on the left and right so that they protrude from a pair of mounting holes on the dash board so that they can be adjusted between the shafts. ing.

Conventionally, this type of device has a mounting plate 2, as shown in Figure 1.
The shaft cylinder 5 of the operation shaft 1 for adjusting the variable resistor 4 is passed through the horizontally long through hole 3 formed in the horizontally long through hole 3 which is open at one end, and the shaft cylinder 5 is moved in the left and right direction along the horizontally long through hole 3. The operating shaft 1 is attached to the mounting plate 2 by screwing the nut 6 into the threaded portion formed on the outer periphery of the cylinder 5.
It was fixed and its position determined. Conventionally, the shape of the horizontally elongated through hole 3 was a horizontal straight line as shown in FIG. 1, but recently, parallel leads 8 have been used for lead wiring between the variable resistor 4 and the printed circuit board 7. There is. The length of the parallel lead 8 is set to be long so that there is no problem even if the variable resistor 4 moves by the dimension "L" as shown in FIG. 1B. However, due to space considerations, it may be difficult to make it unnecessarily long. Also, the conventional first
If the horizontally long through hole 3 is in a straight line shape as shown in the figure, if the parallel lead 8 is short, the variable resistor 4 can be connected to the mounting plate 2.
There was a problem in that it was difficult to attach and remove the device. Note that the printed circuit board 9 is for electrically connecting the variable resistor 4 to other electrical components.

In view of these points, the present invention provides an operating shaft mounting device that eliminates the above-mentioned drawbacks, and one embodiment of the present invention will be described below with reference to FIG. 2.

In the embodiment shown in FIG. 2, a part of the horizontally long through hole 3' is
It is characterized by an arc shape centered on a point.
The width B of the arcuate portion is set to a width that allows the shaft cylinder 5 to move along the left-right direction.

With such a shape of the horizontally long through hole 3', the variable resistor 4 can be smoothly inserted or removed without being restricted by the length of the parallel lead 8, and the specified amount of movement of the shaft cylinder 5 can be achieved. It can be configured regardless of "L" and is practical as an operating shaft mounting device for a small car stereo.

Further, the shape of the horizontally elongated through hole 3 may be configured as shown in FIG. 4 in addition to the embodiment shown in FIG. 2 if there is no problem in terms of aesthetics and performance.

Furthermore, in the case of the embodiment shown in FIG.
It is shaped like an arc over the entire length with the point as the center.
In the case of FIG. 5, the shaft cylinder 5 tilts within the range of movement amount "L", and also slightly moves up and down by the dimension "M", but this is fine if there is no problem in terms of performance.

As described above, the operating shaft mounting device for a vehicle-mounted audio device according to the present invention has the horizontally long through hole of the mounting plate into which the operating shaft is inserted, partially or over the entire length, so that the open side is close to the printed circuit board. Since it is formed in an arc shape, it is possible to easily attach and detach parts having an operating shaft, which is a great practical effect.

[Brief explanation of the drawing]

Figures 1A and 2B are a perspective view and a front view showing a conventional operating shaft mounting device for in-vehicle audio equipment, Figure 2 is a front view showing an embodiment of the present invention, and Figure 3 is an operating shaft of the present invention. A perspective view of an in-vehicle audio device using a mounting device,
4 and 5 are front views showing other embodiments of the present invention, respectively. 1... Operating shaft, 2... Mounting plate, 3'... Horizontally long through hole.

Claims (1)

[Scope of utility model registration request] An electronic component having an operating shaft, a lead wire with one end connected to the electronic component, a printed circuit board to which the other end of the lead wire is connected, and an oblong transparent transparent board with one end open through which the operating shaft of the electronic component is inserted. An operating shaft mounting device for an in-vehicle audio device, comprising a mounting plate having a hole, and adjusting between the operating axes of the electronic component by moving the operating shaft of the electronic component along the horizontally elongated hole. The operation of the in-vehicle audio equipment is characterized in that the horizontally elongated through hole of the mounting plate to which the operating shaft is attached is formed in an arc shape over a partial or entire length so that the open side thereof is close to the printed circuit board. Shaft mounting device.