JP2587898Y2 - Switch device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a switch device,
In particular, the present invention relates to a switch device having a plurality of operation positions such as a neutral start switch.

[0002]

2. Description of the Related Art A conventional switch device will be described with reference to a neutral start switch (hereinafter, referred to as a switch) shown in FIGS.

According to FIG. 1, reference numeral 1 denotes a switch body;
An operating shaft 2 having a hollow center for operating the movable contact is provided. A non-circular portion at the tip of the control shaft 3 of the vehicle automatic transmission is inserted and fixed in the hollow portion of the operation shaft 2 of the switch body 1, and a lever 4 is attached to one end of the control shaft 3. 4 is connected to a shift lever (not shown) of the vehicle by a wire (not shown).

With this structure (especially, the configuration of switching in the switch body 1 is not described), the control shaft 3 is controlled via the operation lever 4 in accordance with the rotation angle of the shift lever.
Is rotated to drive the automatic transmission and to display the driven position on the instrument panel by switching the switching position of the switch body 1 or to operate the starter circuit of the engine with the ignition key in the neutral or parking position of the shift lever. The switch body 1 is switched to operate.

[0005]

However, the assembly of the automatic transmission, the switch body 1 and the shift lever is to be performed in advance at the same position (generally, the neutral position). The control shaft 3 of the transmission is
This setting is changed by the catch or vibration of the automatic transmissions in the middle of the conveyance, and there is a risk that any one of the shift lever, the switch, and the automatic transmission may be assembled at different positions.

[0006]

In order to solve the above-mentioned problems, the present invention provides a hollow operation shaft provided on a switch body side, a rotation shaft of another device inserted and fixed to the operation shaft, and
A nut stopper inserted into a slit provided on the operation shaft, an indicator provided on the nut stopper,
When the rotation axis of the other device is at a specific position, the display is provided at a position of the switch main body corresponding to the indicator.

[0007]

According to the above construction, when the rotation axis of another device is not at a specific position, the indication on the nut stopper does not match the indication on the switch body, so that erroneous assembly can be prevented very easily by visual recognition. It is.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the switch device of the present invention will be described with reference to a neutral start switch (hereinafter, referred to as a switch) shown in FIGS. The same parts as those in the prior art are denoted by the same reference numerals and description thereof is omitted. Reference numeral 1 denotes a switch body, which is a hollow operation shaft 2 having a screw portion on the outside for operating a movable contact (not shown). A nut 5 corresponding to the screw portion for fixing the control shaft of the vehicular automatic transmission to the operation shaft 2 after inserting the control shaft into the hollow operation shaft, and preventing the nut 5 from loosening. A nut stopper 6 having an L-shaped claw, and a rubber packing 7 for preventing abnormal noise and wear due to vibration.

The switch body 1 is provided with a projection 8 and a reference line 9 serving as marks, and the nut stopper 6 is provided with a tongue piece 6a to be inserted into the slit 2a of the operating shaft 2. Is inserted into the slit 2a, and when the operation shaft 2 and the control shaft 3 are at a specific position (for example, a neutral position), the pointing unit 10 corresponding to the projection 8 and the other corresponding to the reference line 9 An instruction unit 11 is provided.

FIGS. 2 and 3 show a state where the control shaft 3 of the automatic transmission is inserted and fixed to the operation shaft 2 of the switch 1, FIG. 2 shows a normal mounting state, and FIG. 3 shows an incorrect mounting state. . The relationship between the slit 2a and the tongue piece 6a is such that the corresponding slit 2a and the tongue piece 6a are paired and have different widths, or the position is asymmetrical. When the control shaft 3 of the automatic transmission is not at a position where the control shaft 3 is assembled (for example, at a neutral position), as shown in FIG. It is easy to visually confirm that the indicator 10 and the other indicator 11 provided on the nut stopper 6 with respect to the line 9 are different from the state shown in FIG. 2 and are not assembled at an incorrect position. It is.

Further, according to the above-described embodiment, by providing the indicating portion 10 and the other indicating portion 11 on the nut stopper 6, even if one side cannot be seen due to the lever position, the working environment, etc., it is possible to confirm either side. It always has the effect of preventing erroneous assembly.

In the above-described embodiment, the switch device of the present invention has been described by using the neutral start switch. However, the present invention is not limited to the neutral start switch, but includes a switch body having a hollow operation shaft, and a switch body inserted and fixed to the operation shaft. This is useful in general for a switch device that requires a means for confirming the position when both the control (rotation) axes to be controlled are inserted and fixed at a specific position.

[0013]

As described above, the switch device of the present invention can easily confirm the error in mounting the other rotary shaft to the switch main body by visual inspection, thereby improving the efficiency of assembly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a neutral start switch which is an embodiment of a switch device of the present invention.

FIG. 2 is a plan view showing a proper mounting state of the device.

FIG. 3 is a plan view showing the wrong mounting state.

FIG. 4 is a plan view of a conventional neutral start switch.

FIG. 5 is a side sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch body 2 Operation shaft 2a Slit 3 Control shaft 4 Lever 6 Nut stopper 8 Projection 9 Reference line 10 Indicator 11 Other indicators

Claims (1)

(57) [Scope of request for utility model registration] 1. A switch body, a hollow operation shaft provided in the switch body, a rotation shaft of another device fixed to the operation shaft, and a nut inserted into a slit provided in the operation shaft. A stopper, an indicator provided on the nut stopper, and a display provided at a position of the switch body corresponding to the indicator when the rotation axis of the other device is at a specific position. Switch device.