JPS5810987Y2 - lever switch - Google Patents

Description

[Detailed description of the invention] This invention has three layers of movable contact pieces, each of which has one end fixed under the metal of an insulating spacer, and is made almost parallel to the other, and the free end of the third layer of movable contact pieces comes into elastic contact with each other. The lever switch consists of a fixed terminal and a lever-operated rod that moves to three positions in the axial direction and automatically returns to the first position from the second position, and its purpose is for automobiles. To provide a lever switch with a simple configuration that is used for switching the main headlights and controlling a passing light signal that flashes the main headlights during the day, as well as for controlling the opening and closing of several small motor circuits for automobiles. It is in.

One embodiment of the present invention will be described with reference to the accompanying drawings. In the figure, 1 indicates a direction indicator, which is placed on a main body body 2 with a tube shaft 4 inserted through the body 2 at a neutral position and left and right direction indicating positions. A movable bracket 3 that pivots is provided at the movable bracket 3, and a lever 5 that causes the above-mentioned pivoting operation is protruded from the movable bracket 3.

The lever 5 is pivotally supported so that it can rotate independently in the vertical direction around a shaft 6, and an engaging element 8 is provided at the tip of the lever 5, which is elastically protruded by the spring 7. A trough 9 that locks the engaging element 8 when the tip of the lever 5 is in the lower position ■; a trough 11 that locks the engaging element 8 when the tip of the lever 5 is in the upper position III; and an inclined surface 10 that contacts the engager 8 when it is at an intermediate position II that does not reach the upper position III.

The inclined surface 10 is formed continuously below the valley portion 9, and the lever 5 moved to the intermediate position II is connected to the inclined surface 10.
is automatically returned to the lower position I by the sliding movement of the engaging element 8 sliding in the direction of the trough 9.

Unlike the conventional mechanism, the lever 5 is unique in that it is configured to automatically return from the intermediate position II to the lower position I. In order to suppress the occurrence of erratic movement, an impact protrusion 12 that applies a shock to the engaging element 8 is formed between the inclined surface 10 and the trough 11.

Reference numeral 13 denotes an insulating mounting plate attached to the lower surface of the main body body 2 at a position crossing the lower end of the tube shaft 4, and is fixed to the lower surface of the - side with an insulating spacer 14 interposed at each end. Three layers of movable contact pieces 15, 16, and 17 are provided substantially in parallel, and each corresponds to the lower surface of the tube shaft 4.

A locking protrusion 18 is formed on the lower surface of the other side of the mounting plate 13 to engage the free end of the movable contact piece 15 of the first layer to limit the downward movement, and a third layer is formed on the lower surface of the locking protrusion 18. An opposed terminal 19 is fixed on the free end of the movable contact piece 17 of the terminal.

The movable contact piece 15 of the first layer has a contact point at its free end as an elastic plate having an elastic tendency to contact the contact point at the free end of the movable contact piece 16 of the second layer, and the movable contact piece 17 of the third layer has a contact point at its free end. Contact piece 15, 16
Make it a little longer and connect the free end contact from below to terminal 1.
9 is an elastic plate with a tendency to elasticity.

Further, the movable contact piece 17 of the third layer is provided with a second contact point corresponding to the contact point on the lower surface of the movable contact piece 16 of the second layer as shown.

Reference numeral 21 denotes a rod that passes through the center hole of the tube shaft 4 and protrudes upward and downward. A spring 22 that pushes upward is attached to this rod so that the upper end contacts the lower surface of the front end of the lever 5, and the lower part is a first movable rod. The engagement head 23 is loosely inserted into the contact piece 15 and the second
and the movable contact piece 16.

When the lever 5 is placed in the lower position ■, the rod 21 moves to the first position as shown in FIG. Forced separation from contact.

When the lever 5 is in the intermediate position II, it is in the second position as shown in FIG. contact with.

When the lever 5 is in the upper position III, it is moved to the third position as shown in FIG.
Push down the movable contact piece 16 of the third movable contact piece 1, and
At the same time as the third movable contact piece 17 is brought into contact with the second contact point of the terminal 7, the third movable contact piece 17 is pushed and the free end is pulled downwardly away from the terminal 19.

When controlling the switching of the main and auxiliary headlights and the passing light signal by using the lever switch described above, the third movable contact piece 17 contacts the power supply B and connects the headlight circuit 31 with the light switch Sw interposed therebetween. A passing circuit 32 directly connected to the power source B is connected to the first movable contact piece 15.

Further, the circuit 33 of the main headlamp Hu is connected to the second movable contact piece 16, and the circuit 34 of the auxiliary headlamp H is connected to the terminal 19.

In the daytime when the light switch Sw is turned off in the above,
When the rod 21 is moved to the second A device as shown in FIG. 2, the main headlight Hu is turned on by the current flowing through the passing circuit 32.

When the lever 5 is released from the second position, the rod 21 automatically returns to the first position shown in FIG. 1, so that the main headlight Hu is turned off.

Therefore, by frequently moving the rod 21 between the second position and the first position, a passing light signal that causes the main headlight Hu to blink can be generated.

At night when the light switch Sw is turned on, if the rod 21 is moved to the first position shown in FIG. When the movable contact piece 15 of the first layer is separated from the movable contact piece 16 of the second layer, the main headlight Hu is turned off.

Furthermore, when the rod 21 is placed in the third position in FIG. Headlight Hr
- Switch to the main headlight Hu and turn it on.

When the rod 21 is frequently moved between the second position and the first position, a passing light signal is generated that causes the main headlight Hu to blink while leaving the sub-headlight H1- on.

The lever switch of the present invention can be used, for example, as a switch for opening and closing wiper motor circuits and washer motor circuits by opening and closing the movable contact pieces 15 to 17 shown in FIGS. 1 to 3.

In this case, the lever 5 can be a lever dedicated to a lever switch other than the one attached to the movable bracket 3.

As clarified by the above illustrative description, the present invention has the following features:
The rod is moved from the second position between the first position and the third position to the first position by automatically returning the lever from the intermediate position between the two swinging and fixed positions to one of the swinging and fixed positions. A switch mechanism adapted to the operation of the rod, and the rod is provided with a second automatic return position further outside between the first and third positions. Compared to the above, the related swinging movement by the rod of the movable contact pieces made of three layers can be simplified, and the mechanism for opening and closing the electric circuit by these movable contact pieces can be simplified.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, with FIG. 1 being a partially cutaway side view, and FIGS. 2 and 3 showing rods 21 of the movable contact pieces 15 to 17.
FIG. 5 → lever, I → lower position, II → intermediate position, III →
Upper position, 13 → insulating mounting plate, 14 → spacer, 15,
16゜17→first, second, and third layer movable contact pieces, 19→terminal, 21→rod, 23→engaging head.

Claims (1)

[Scope of utility model registration request] Three layers of movable contact pieces each having an insulating spacer on one end and fixed to an insulating mounting plate are provided in almost parallel, and the first layer movable contact piece has its free end connected to the second layer movable contact piece. The movable contact piece of the third layer has an elastic plate with a resilient tendency that contacts the free end of the movable contact piece of the second layer, and the movable contact piece of the third layer has a free end that contacts the free end of the second layer movable contact piece. A fixed terminal is provided on the mounting plate for elastically contacting the free end of the movable contact piece to prevent the free end from contacting the movable contact piece of the second layer, and further movable to three positions in the axial direction and from the second position. A lever-operated rod that automatically returns to the first position is loosely inserted into the movable contact piece of the first layer, so that the retaining head faces between the movable contact pieces of the first layer and the second layer. In a first position, the free end of the movable contact of the first layer is forcibly separated from the free end of the movable contact of the second layer; The movable contact piece of the second layer is released from the forced separation and brought into elastic contact with the free end of the movable contact piece of the second layer, and the movable contact piece of the second layer is pressed at the third position, and the movable contact piece of the second layer is pressed. At the same time, the second movable contact piece of the layer is released from elastic contact with the free end.
bringing the free end of the movable contact piece of the layer into elastic contact with the movable contact piece of the third layer;
A lever switch characterized in that the movable contact piece of the third layer is flexed in conjunction with each other to separate the free end from the fixed terminal.