JPH0433627Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a push switch used in turn signals of motorcycles and the like.

[Prior Art] A conventional pushbutton switch is shown in FIG. a is a knob, b is a rocking plate, and c is an elongated hole formed in the center of the hole, into which a supporting shaft d protrudes; It is movable forward (arrow z). The other end of the rocking plate b forms a rocking part e, and a notch f is provided at the center of the rear end, into which the ball of the click mechanism g is pressed. The click mechanism g has the function of returning the swing of the swing part e to the neutral position, and at the same time has a return action of pushing back the forward movement of the swing plate b. Furthermore, two pins h ₁ and h ₂ are erected on the back surface of the central portion of the swinging portion e. Further, a slider i is disposed on the back surface of the swinging portion e, and a chevron-shaped guide portion j having a symmetrical inclined surface is formed on the upper surface of the slider i, and is selectively engaged with either the left or right pin h ₁ or h ₂ . It is now possible to combine K is a movable contact provided on the side surface of the slider, and l is a fixed contact that can be brought into contact with and separated from this. When the knob _a is swung in the direction of arrow For example, the right turn signal changes to a blinking state. At this time,
When the knob a is released, the swinging plate b is returned to the neutral position by the click mechanism g, but the slider i remains in the moving position, and the pin _h2 and the other side of the guide portion j are engaged or close to each other. Therefore, in order to return the slider i to the neutral position, push the knob a in the direction of the arrow z. Then, since the pin _h2 comes into contact with the guide part j, the slider i is pushed back to the neutral position, and the movable contact k and the fixed contact l are out of contact.

[Problem to be solved by the invention] By the way, in the above structure, two bins h ₁ and h ₂
Requires. These are each attached by caulking work. Therefore, the number of installation steps increases accordingly, resulting in higher costs. Moreover,
If the mounting accuracy on the left and right sides is incorrect, there will be variations in the left and right switch operations.

Further, when canceling by pushing the rocking plate backward, if the rocking plate swings from side to side, it is difficult to return the slider to the neutral position. Therefore, the purpose of this invention is to
To reduce costs by reducing installation man-hours, to reduce variations in operation of left and right switches, and to quickly and reliably return a slider to a neutral position.

[Means for Solving the Problems] The push-cancel switch of the present invention includes a swinging plate supported by a support shaft so that the center can swing freely and move back and forth in the front and back directions, and the swinging plate. an engaging member protruding from the center of one end; a slider having a symmetrical inclined wall surface that can be engaged with the engaging member; and a movable contact; and a fixed contact that can come into contact with and separate from the movable contact. and a guide portion having a guide groove that engages with the engaging member and guides the back and forth movement of the engaging member when the rocking plate is pushed rearward.

[Operation of the invention] The pushbutton switch according to the invention has the following features:
A single engaging member is used, and symmetrical inclined wall surfaces are formed upright from the slider on the left and right sides of the engaging member. Therefore, when the rocking plate is rocked to either the left or right, the engaging member that swings together with the rocking plate selectively engages with either the left or right inclined wall surface and moves the slider to the left or right. to change the switch.

Moreover, when the rocking plate is pushed in, the engaging member comes into contact with and presses the inclined wall surface, so that the slider returns to the neutral position. At this time, when the rocking plate is pushed backward, the engaging member is engaged with the guide groove of the guide part,
In this state, the slide is guided rearward without shaking from side to side, so the slide can quickly return to the neutral position.

[Embodiment] An embodiment of the present invention shown in FIGS. 1 to 6 is shown.
This embodiment relates to a turn signal switch for a two-wheeled motor vehicle, and as shown in FIGS. ing. A support shaft 4 made of a bolt is passed vertically through the elongated hole 3 and is attached to a case 7 sandwiched between insulating sleeves 5 and 6 so as to be slidable along a center line C. Rocking plate 2
A swinging tail portion 8 is formed on the other end side, the rear end surface is a constant guide curved surface 9, and an engagement groove 1 is formed in the center portion.
0 is formed. Further, an engaging member 11 consisting of a single bottle is provided at the center of the swinging tail 8 with its upper end crimped to the swinging tail 8 and the other end protruding downward.

The swing tail 8 is biased by a click mechanism consisting of a return spring 12 and a ball 13 so as to automatically return to the neutral position. When the ball 13 engages with the engagement groove 10, it is in a neutral state. A slider 14 is disposed below the swinging tail section 8 so as to be swingable in the left-right direction, and a cam section 15 that can be engaged with the engagement member 11 is integrally formed on the upper surface of the slider 14 in an upwardly erected manner. .

The cam portion 15 includes a pair of stoppers 16a, 16b and inclined wall surfaces 17a, 17b, which are provided symmetrically with respect to the center line C. However, the inclined wall surface 17a
and 17b are arranged to form a tapered space in the direction in which the knob 1 is pushed in, and the inclined wall surface 17a
The distance 17c between the tips of the engagement members 17b and 17b is smaller than the outer diameter of the engagement member 11.

Symbols 18a and 18b in the figure are movable contacts provided on the side surface of the slider 14, and 19a, 19b,
19c is a fixed contact disposed on the case 7 side so as to be able to come into contact with and separate from this.

Further, 20 is a guide portion consisting of a V-shaped groove,
It has an expanded portion 21 and a tip portion 22 for guiding the engaging member 11 along the center line C when pushing the engaging member 11 backward.

Next, the operation of this embodiment will be explained. First, the first
The figure shows a neutral state, with both left and right circuits at 0FF. Therefore, as shown in FIG. 1, for example, when the knob 1 is tilted in the direction of the arrow The mating member 11 comes into contact with the stopper 16b, and therefore the slider 14 moves in the direction of the arrow Y, and the third
As shown in the figure, the movable contact 18a is the fixed contact 19c.
and 19b at the same time. As a result, the movable contact 18b and the fixed contact 19b are electrically connected, and, for example, a right turn turn signal is turned on. In this state, knob 1
When you release your hand from the oscillating plate 2, a click mechanism consisting of a return spring 12 and a ball 13 moves the oscillating plate 2.
is automatically swung back to the neutral position, but the slider 14 remains in the moving position and continues to light up. This is the state shown in FIG. At this time, the engaging member 11 is in a position where it substantially contacts the stopper 16a.

Next, after completing the right (left) turn and returning to the straight forward state, the knob 1 is pushed in the direction of arrow Z (FIG. 4).
Then, since the swing plate 2 can move forward in the direction of the center line C relative to the support shaft 4 due to the elongated hole 3, the engaging member 11 is pushed in. Then, the engaging member 1
1 first advances along the stopper 16a and then comes into contact with the inclined wall surface 17a, so while pushing it in the direction opposite to the arrow Y in FIG. 1, the inclined wall surface 17a and 1
Proceed to the position where it fits into the gap 7b. As a result, the slider 14 is moved back to the neutral position,
The fixed contact 19b and the movable contact 18b are disconnected again, and the switch becomes 0FF (FIG. 5).

FIG. 6 shows the operation of the engaging member 11 in the guide section at this time. When the engaging member 11 is pushed backward, the upper part 11a is guided by the tapered expanded part 21 and the tip part 22, so that backward movement is ensured.

Thereafter, when the knob 1 is released, the swing plate 2 is pushed back along the center line C in the direction of the fifth arrow by the return spring 12, returning to the neutral state shown in FIG. Note that the same applies to the case of turning in the opposite direction, for example, to the left; in this case, the movable contact 18a
The switch is turned on and off by the contact and separation between the fixed contacts 19a and 19c.

[Effects of the invention] The push button switch according to the invention has the following effects:
Since a single engagement member is used, two pins are not required as in the conventional case, and the number of installation steps can be reduced accordingly, resulting in cost reduction. Furthermore, since there is no variation in mounting accuracy between the left and right sides, the switch operation can be made constant on the left and right sides.

Furthermore, since the cancel switch according to the present invention is provided with a guide portion that guides the backward movement of the engaging member during canceling, the slider can be quickly and accurately returned to the neutral position.

[Brief explanation of drawings]

1 to 5 show an embodiment, FIG. 1 and 3 to 5 are schematic plan views showing the operation, and FIG. 2 is a sectional view. FIG. 6 is a sectional view illustrating the operation of the main parts, and FIG. 7 is a plan view of the conventional example. Explanation of symbols: 1...knob, 2...swing plate, 4...spindle, 8...
Swinging tail portion, 11... Engaging member, 14... Slider, 15... Cam portion, 17a, 17b... Inclined wall surface, 18a, 18b... Movable contact, 19a, 19
b, 19c...Fixed contact, 20...Guide part, C
...center line.

Claims (1)

[Scope of utility model registration request] A rocking plate whose center portion is supported by a support shaft so that it can swing freely and move back and forth in the front and rear directions, an engaging member that projects from the center of one end of the rocking plate, and the engaging member. It is composed of a slider having symmetrically engageable inclined wall surfaces and a movable contact, and a fixed contact that can come into contact with and separate from the movable contact, and when the rocking plate is pushed rearward, the slider has a movable contact. 1. A push-cancel switch characterized by having a guide portion formed with a guide groove that engages with a member and guides its forward and backward movement.