JPH08306263A - Engine stop switch - Google Patents

Abstract

PURPOSE: To provide an engine stop switch with both functions as a tether switch and as a stop switch with a relatively simple mechanism and heighten the option of a joining string drawing out direction by installing a spherical hook, a torsion coil spring, etc., and a switch. CONSTITUTION: A button 2, a torsion coil spring 5, a joining string 7, and a switch 10 are installed: wherein the button 2 has a hollow part 2a and a knob 2d in the upper end part; the spring energizes the button in the direction to a hollow part 1a of a case and the upper direction; and the string 7 is bound to the body of a driver and has a spherical hook 3 in the tip. Consequently, when a vehicle, a water-bike, etc., are turned over, the string 7 bound to the body of a driver is pulled back, so that the hook 3 is pulled out of the switch main body. Then, the button 2 swings by the function of the spring 5 and the switch 10 acts to stop an engine. Moreover, when a driver pushes down the knob 2b of the button 2 even if the hook 3 is kept as it is, the switch 10 acts to stop the engine in the same way. That is, one single switch has two switching functions.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an engine stop switch for outboard motors, small boats, watercrafts, snowmobiles, etc.

[0002]

2. Description of the Related Art The engine stop switch used for the above-mentioned applications has a clip or the like at the tip of the connecting cord fixed to the driver's body when the driver is thrown out when the vehicle falls. There are a so-called teaser switch that stops the engine when it is disengaged from the switch, and a so-called stop switch that the driver voluntarily manually stops the engine.

As a form of the teaser switch, a spacer called a lock plate is removably interposed between a fixed contact side and a movable contact side as disclosed in Japanese Utility Model Publication No. 54-11566. In the case of an emergency, by pulling out the lock plate from the switch via the connecting cord fixed to the body, the fixed contact and the movable contact are pressed by the action of the spring, and the switch is turned on to stop the engine. There is.

Further, as disclosed in Japanese Patent Laid-Open No. 60-232624, a clip provided with a large loop is fitted into an arm protruding outward of a toggle switch, and is fixed to a body in an emergency. There is a mode in which the arm of the toggle switch is interlocked by pulling out the clip from the switch via the switch to turn on the switch to stop the engine.

On the other hand, as a form of the stop switch,
Various items such as push button switches and toggle switches are used.

[0006]

Due to problems in installation space and appearance, recent engine stop switches are required to have both functions of a teaser switch and a stop switch. However, these engine stop switches are indispensable for a waterproof mechanism because of their use, and when both the functions of the teaser switch and the stop switch are simply combined, the structure is complicated and the shape is large.

Further, in the known example using the above toggle switch, it is possible to have both the functions of the teaser switch and the stop switch, but the pulling-out direction of the clip at the tip of the connecting cord is limited, and therefore, the operation at the time of falling. There was a problem with the certainty of.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an engine stop switch which has both a teaser switch function and a stop switch function with a relatively simple structure and which has a high degree of freedom in the withdrawal direction of the connecting cord. It is a thing.

That is, the first aspect of the present invention is that the depression (2
Case (1) having button (2) having a) and button (2) pivotally supported so as to be swingable and vertically movable and having a recess (1a) corresponding to the recess (2a) on the inner surface of the upper part thereof. When,
Between the torsion coil spring (5) for urging the button (2) in the direction (1a) and upward of the case (1), between the lower part of the recess (2a) and the inner peripheral surface of the case (1). The waterproof boot (6) provided is engaged and held between the recess (2a) of the button (2) and the recess (1a) of the case (1) provided at the tip of the connecting cord (7). A spherical hook (3),
A switch (10) provided at the bottom of the case (1) that opens and closes the contact when the button (2) is swung by the detachment of the spherical hook (3) or is pressed. This is the engine stop switch.

A second aspect of the present invention is the switch (1
0) is a waterproof switch.

[0011]

When the vehicle or water bike falls, the spherical hook (3) is pulled out from the switch body by pulling the connecting cord (7) connected to the driver's body.
The button (2) is swung by the action of the torsion coil spring (5), the switch (10) is activated, and the engine is stopped.
Further, even if the spherical hook (3) is left as it is, if the driver pushes down the knob (2d) of the button (2), the switch (10) can be similarly activated to stop the engine.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, (1) is a case made of a hard synthetic resin which is a main part of the present invention. The case (1) includes a box-shaped lower case (1f) in which a switch (10) described later is housed, and a cylindrical protrusion (1g) protruding upward from the vicinity of the center of the lower case (1f). Become.

This protrusion (1g) is cylindrical as described above,
Inside is a space in which a button (2) described later can be swung or moved up and down, an opening (1d) is formed at the upper end, and a right side wall near the upper end is cut out. Further, a recess (1a) with which a spherical hook (3) described later is engaged is provided on the inner surface of the left side wall opposite to the cutout.

Further, a step portion (2c) with which one end of a torsion coil spring (5) described later abuts in this space (see FIG. 3).
Is provided.

On the other hand, a hole (1h) is provided at the bottom of the space of the protrusion (1g), and a switch knob (14) for operating a contact of a switch (10) described later is provided in the hole (1h). ) Is inserted so that it can slide up and down.

(2) is a button mounted in the space inside the protrusion (1g). This button (2) has a recess (2a) on the left side of the upper part where a spherical hook (3) described later engages.
Is provided, and a knob (2d) is provided in a protruding shape on the opposite side of the recess (2a). Further, a hole (2b) through which a pin (4) serving as a support shaft of the button penetrates is provided near the center of the button (2). The hole (2b) is formed in a substantially fan shape, which is slightly larger than the diameter of the pin (4) because the button (2) can be moved up and down and rocked.

The lower end of the button (2) may be a flat surface corresponding to the upper surface of the switch knob (14), but a protruding portion (2e) may be provided at the lower left end as shown.

In (6), the upper part fits into the outer periphery of the button slightly below the recess (2a) and the lower part fits into the space inner periphery of the projecting part (1a) of the case (1), The waterproof boots waterproof the space between the button (2) and the case (1). The waterproof boot (6) is made of, for example, a flexible rubber material, and the middle portion thereof is the button (2).
It is formed to be thin so that it can follow the swing and vertical movement of the.

(5) is a torsion coil spring that biases the button (2) counterclockwise and upward. As shown in FIG. 3, the torsion coil spring (5) has a pin (4) serving as a support shaft of the button described above penetrated through the central coil portion, and one end of the torsion coil spring (5) contacts the stepped portion (2c) of the button (2). The other end is brought into contact with the shoulder portion (1b) of the case (1) to urge the button (2) counterclockwise.

Reference numeral (7) is a connecting cord which is connected to the driver's body by a clip or the like and has a spherical hook (3) at its tip. Further, (8) is a nut for attaching the case (1) to a vehicle or a water bike.

(10) is a unitized switch. This switch is mounted in the lower case (1f) of the case (1). An opening (10a) is located at a position corresponding to a lower part of the switch knob (14) on the central upper surface of the switch (10), and the opening (10a) is made of rubber and has an umbrella-shaped waterproof boot (15). Is provided.

Under the waterproof boot (15) of the switch (10), there is a hole (21) at a position corresponding to the case hole (1h).
A terminal plate (21) having a) and having a fixed contact (12) at one end of the lower surface is provided. In the hole (21a) of the terminal plate (21), a pin (16) made of a hard resin is brought into contact with the waterproof boot (15) at its upper portion and a movable contact support plate (13a) described later at its lower portion. It is provided so that it can move up and down in the opened state.

On the other hand, the contacts of the switch (10) are provided at a fixed contact (12) fixed to the lower surface of the terminal plate (21) and at a position corresponding to the fixed contact (12), and the pin (1)
A movable contact support plate (13) in the form of a leaf spring, which has a movable contact (13) at its tip which comes in contact with and separates from the fixed contact (12) by the vertical movement of
a) and.

Reference numeral (18) is a lead wire connected to these contacts and led out of the switch cover (11),
(19) is a rubber grommet for waterproofing the lead-out portion of the lead wire (18).

Next, the assembly procedure of this embodiment will be described. To attach the button (2) to the case (1), first, the rubber waterproof boot (6) is fitted slightly below the recess (2a) on the upper end side of the button (2), and then the button (2) is attached. ) Is inserted into the space from the opening (1d) of the protrusion with one end of the torsion coil spring (5) abutting against the step (2c), and the other end of the torsion coil spring (5) is attached to the shoulder of the case. Contact with (16). Then, as shown in FIG. 3, the pin (4) is twisted with the hole (1c) on the side surface of the case (1) and the hole (2b) of the button (2) aligned with each other, and the coil spring (5).
Insert into the hole (1c) by penetrating the coil part of. As a result, the button (2) is biased by the torsion coil spring (5) and is held so as to be able to swing and move up and down within a limited range in the space of the case (1).

The switch (10) is assembled by the fixed contact (12).
And a movable contact support plate (13) equipped with a movable contact (13) at the tip.
After fixing a) to the terminal plate (21), the lead wire (18) is soldered. In this state, press fit the grommet (19) into the lead wire (18) and attach the terminal plate (21) to the switch cover (11).
Fit in.

Then, the pin (16) is passed through the hole (21a) of the terminal plate (21), and the waterproof boot (1) is placed on the upper portion of the pin (16).
Cover 5). Then, the plate (20) is fitted to the upper surface of the switch cover (11) via the packing (17) so as to press the outer peripheral portion of the waterproof boot (15), and the plate (20) is screwed to the switch cover (11). ) Fixed.

Then, the hole (1
The switch knob (14) is inserted into the h) from below, and the previously assembled switch (10) is fitted into the lower case (1d) from below and fixed.

The engine stop switch assembled as described above is fitted from the inside into a mounting hole (not shown) provided in a vehicle panel or the like, and the nut (8) is tightened and fixed. Finally, the upper part of the button (2) is tilted to the right, and the spherical hook (3) at the tip of the connecting cord (7) is fitted between the upper recess (2a) and the recess (1a) on the side surface of the case (1). .

Next, the operation of the present invention will be described. Figure 2
When the spherical hook (3) at the tip of the connecting cord (7) is held between the recess (2a) of the button (2) and the recess (1a) of the case (1) as shown in FIG. Does not push the switch knob (14) of the switch (10) and the contacts are closed.

In this state, when the connecting string (7) is pulled for some reason and the spherical hook (3) is disengaged from the recess (2a) of the button (2), the button (2) uses the pin (4) as a fulcrum. The action of the torsion coil spring (5) causes it to swing to the left as shown in FIG. This allows the button (2)
Pushes the switch knob (14) downward by the protrusion (2e) at the lower left end, so the pin (16) of the switch (10) is pushed down in conjunction with this, and the movable contact support plate (13a) is on the lower side. The movable contact (13) separates from the fixed contact (12) by bending to stop the engine.

Even when the spherical hook (3) is attached, the knob (2d) of the button (2) as shown in FIG.
When is pressed downward, the button (2) slides downward and the switch knob (14) is pressed, so that the contacts are opened and the engine is stopped in the same manner as above. That is, in this embodiment, one switch has the functions of both the teaser switch and the stop switch.

In the present embodiment, the switch (10)
The contact of the so-called normally-closed contact was shown, but the movable contact (13)
If the fixed contact (12) is arranged on the lower side, it can be a normally open contact. The number of circuits is not limited to one circuit, and it goes without saying that a plurality of circuits can be provided.

[0034]

As described above, the present invention provides a small-sized and low-cost engine stop switch that has both the functions of a teaser switch and a stop switch, and has a waterproof structure, because of the above structure. be able to. Further, since the spherical hook is used, it can reliably operate when the connecting string is pulled out in any direction, which is highly safe.

[Brief description of drawings]

FIG. 1 is a front view of an example of the present invention.

FIG. 2 is a side view of a central longitudinal section of an example of the present invention.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a side view of the central longitudinal section showing a state where the spherical hook is pulled out.

[Fig. 5] Side view of the center vertical section showing the state where the button is pressed down.

[Explanation of symbols]

 1 ... ・ Case 1a ・ ・ ・ ・ Dimple 1b ・ ・ ・ ・ Shoulder 1c ・ ・ ・ ・ Hole 1d ・ ・ ・ ・ Opening 1f ・ ・ ・ ・ Lower case 1g ・ ・ ・ ・ Projection 1h ・ ・ ・ ・Hole 2 ・ ・ ・ ・ Button 2a ・ ・ ・ ・ Dent 2b ・ ・ ・ ・ Hole 2c ・ ・ ・ ・ Step 2d ・ ・ ・ ・ Knob 3 ・ ・ ・ ・ Spherical hook 4 ・ ・ ・ ・ ・ ・ Pin 5 ・ ・ ・Torsion coil spring 6 ... Waterproof boot 7 ... Connection cord 10 ... Switch 11 ... Switch cover 12 ... Fixed contact 13 ... Movable contact 13a ... Movable contact support Board 14 ・ ・ ・ ・ Switch knob 15 ・ ・ ・ ・ ・ ・ Waterproof boot 16 ・ ・ ・ ・ Pin 21 ・ ・ ・ ・ Terminal board

Claims (2)

[Claims] 1. A button (2) having a recess (2a) on an upper end side thereof, and the button (2) being pivotally supported so as to be swingable and vertically movable, and the recess (2a) corresponding to the inner surface of the upper part thereof. A case (1) having a recess (1a), a torsion coil spring (5) for urging the button (2) in the direction of the recess (1a) and upward of the case (1), and below the recess (2a). Waterproof boots (6) provided between the inner peripheral surface of the case and the case (1)
And a spherical hook (3) engaged and held between the recess (2a) of the button (2) and the recess (1a) of the case (1) provided at the tip of the connecting string (7), A switch (10) provided at the bottom of the case (1), which opens and closes the contact when the button (2) is swung by the detachment of the spherical hook (3) or is pressed. Engine stop switch. 2. The engine stop switch according to claim 1, wherein the switch (10) is a waterproof switch.