JPS6221665B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a power-driven stand for a motorcycle that can easily lower the stand by disconnecting the motor from the stand as necessary. This is related to the improvement of.

It is difficult to manually raise the stand of a motorcycle, and women are not good at raising the stand, so motorcycles with motor-driven stands that allow the driver to raise the stand without directly touching the stand are preferred. It can be done.

However, in a motor-driven stand, in order to use a small motor to overcome the large stand-up torque and erect the stand, a reducer with a large reduction ratio is interposed between the motor and the stand. A one-way torque transmission means that enables torque transmission only to the stand is installed in series near the stand, and as a result, when the stand is raised, a large torque acts on the one-way torque transmission means and wedges it. Therefore, a large torque is required to release the state of torque transmission in the standing direction of the stand, and it is extremely difficult to perform the release operation by mechanical means.

The present invention relates to an improvement of a power drive stand for a motorcycle that overcomes these difficulties, and its purpose is to provide a power drive stand for a motorcycle that can easily release the torque transmission state of a one-way torque transmission means. The point is that it provides a stand.

An embodiment of the present invention illustrated in FIGS. 1 to 5 will be described below.

Reference numeral 1 designates a motorcycle body, in which a steering pipe (not shown) is rotatably pivoted to a handle post 2 of the vehicle body 1, and a front wheel 4 is attached to the lower end of a front fork 3 connected to the lower end of the steering pipe. It is pivotally supported.

Further, a handlebar 5 is integrally attached to the upper end of the steering pipe, and handlebar grips 6 are provided at both ends of the handlebar 5.

Further, a stand operating mechanism 7 is integrally provided with the handlebar 5 between the center portion of the handlebar 5 and the right handle grip 6, and a parking lever 8 is pivoted to the stand operating mechanism 7 so as to be able to swing back and forth. A lever grip 9 is integrally attached to the tip of the lever 8. When the lever grip 9 is swung forward, a parking switch 64 (described later) built in the stand operation mechanism 7 is closed, and a parking switch 64 (described later) is closed. When the starter motor 12 is rotated in a direction opposite to the engine starting direction, a wire 40 (described later) is fed out rearward. Conversely, when the lever grip 9 is swung rearward, the parking switch 64 is opened.
When the starter motor 12 (described later) is stopped, the wire 40 (described later) is tensioned forward.

An engine 10 is disposed at the rear lower part of the vehicle body 1, and the rear wheel 1 is powered by the engine 10.
1 is designed to be rotationally driven.

Further, the starter motor 12 for starting the engine 10 and for raising the stand is a deceleration device 1 for raising the stand.
4. It is connected to the main stand 34 via the one-way torque transmission means 21, the drive link arm 27, the stand link 29, and the turnbuckle 30, and the starter motor 12 rotates in the opposite direction to the starting rotation direction of the engine 10. When this happens, the power of the motor 12 is decelerated and boosted, and the main stand 34 is driven to stand up forward about the stand bolt 33.

As shown in FIG. 3 and FIG.
A primary worm gear 16 is spline-coupled to a secondary worm shaft 17 which is pivotally supported orthogonally to the starter motor rotating shaft 13 and meshed with the primary worm 15, and a primary worm gear 16 is integral with the secondary worm shaft 17. It consists of a formed secondary worm 18, a secondary worm gear 19 that meshes with the secondary worm 18, and a reduction gear casing 20.

Further, the one-way torque transmission means 21 includes a screw spline 22 (the screw spline 22 includes the secondary worm gear 19 ) and the same screw spline 2
Drive side ratchet 2 screwed into 2
3, a driven latch 24 that is integrally fitted onto the drive link shaft 25 and meshes with the drive side latch 23, and the drive link shaft 25, and the starter motor 12 rotates in the direction in which the stand is raised. When this happens, the drive side latch 23 moves toward the driven latch 24 and meshes with it, so that the stand raising torque of the starter motor 12 is transmitted to the drive link shaft 25. An engagement groove 26 (see FIG. 4) is formed on the outer periphery of the driven latch 24.

Further, as shown in FIG. 2, a drive link arm 27 is integrally fitted to the drive shaft 25, and a stand link 29 is pivotally connected to the tip of the drive link arm 27 via a pin 28, and the stand Link 29 and main stand 34
The drive shaft 25 is connected to the drive shaft 25 by a turnbuckle 30 and a pin 31.
When the main stand 34 is rotated clockwise or counterclockwise, the main stand 34 is lowered or raised.

Furthermore, the main stand 34 is rotatably supported by a stand bolt 33 fitted into a frame stand collar 32 integral with the vehicle body 1, and is attached with a nut 36.

A pole shaft 37 is rotatably pivotally mounted in the reduction gear casing 20, and a parking pawl 38 and a parking pawl arm 39 that can be releasably engaged with the engagement groove 26 of the driven ratchet 24 are provided. A coil spring (not shown) is provided integrally with the pole shaft 37, has one end of a lever wire 40 tied to the tip of the parking pole arm 39, and biases the parking pole 38 to engage the engagement groove 26. ) is fitted onto the pole shaft 37.

Furthermore, a motor off switch stay 41 is provided integrally with the drive link arm 27.
When the main stand 34 is erected, the stay 41
is in contact with the motor off switch 65, and the switch 65 is turned off.

Next, a circuit diagram of the power drive stand for a motorcycle shown in FIG. 5 will be explained.

50 is a battery power supply, and the + terminal of the power supply 50 is connected to a combination switch 51 and a starter relay 52.
+ terminal 12 of the motor 12 via the a contact 52a of the
A, a stop switch 53, a coil 52b of the starter relay 52, and a starter switch 54 are interposed in a line that is connected to the combi switch 51, starter relay 52, and grounded, and is connected in parallel with the starter relay coil 52b and starter switch 54. line ni stotsu lamp 5
5 is interposed.

In addition, the combination switch 51 is connected to the + terminal of the power supply 50.
The input terminal of the breaker 56 is connected through the
The output terminal of the breaker 56 is connected to one terminal 12b and the + terminal 12a of the motor 12, respectively, through the a contacts 57a and 58a of a standing relay 57 and a falling relay 58, which are arranged in parallel. .

Furthermore, the stand-up relay 57 and the fall-down relay 5
The B contacts 57b and 58b of the relay 58 are grounded, the coil 58c of the falling relay 58 is connected to one terminal 12b of the motor 12 via the collector and emitter of a transistor 59, and the base of the transistor 12 is connected to a variable resistor 60 and a diode. 61 to one terminal 12b of the motor 12, the intermediate between the resistor 60 and the diode 61 is grounded via the capacitor 62, and these transistors 5
9, a variable resistor 60, a diode 61, and a capacitor 62 constitute a detachment circuit 63.

Furthermore, the output terminal of the breaker 56 is grounded via a parking switch 64, a motor off switch 65, and a coil 57c of the standing relay 57.

Further, an indicator lamp 66 and a flashing transistor 67 are connected in series to a line branched from the parking switch 64 and the motor off switch 65 and connected to ground.

Furthermore, the astable multivibrator 68 includes two transistors 69 and 70, and the same transistor 6.
Variable resistors 71, 72 are interposed between the bases of transistors 9, 70 and ground, and resistors 73, 74 are interposed between the collectors of transistors 69, 70 and ground.
and capacitors 75 and 76 that connect the bases of transistors 69 and 70 and the collectors of transistors 70 and 69. When a voltage is applied to the emitters of both transistors 69 and 70, the collector of transistor 69 repeatedly A square wave output is generated and transmitted through resistor 77 to blinking transistor 67.

and an indicator lamp 66, a flashing transistor 69, and an astable multivibrator 68.
An indicator circuit 78 is constructed.

Further, an a contact 79a of a self-holding relay 79 is connected in parallel with the parking switch 64, and a coil 79b of the relay 79 is connected to the + terminal 12a of the motor 12 via a P gate SCR80.
A capacitor 81 and a resistor 82 are connected in parallel to the self-holding relay 79 to a trigger terminal of a P gate SCR 80, and the trigger terminal is grounded via a resistor 83.

Since the embodiment shown in FIGS. 1 to 5 is constructed as described above, the combination switch 51
When the parking switch 64 is turned on, the current flows from the power supply 50 to the combination switch 51 and the breaker 5.
6. Coil 57 of standing relay 57 via parking switch 64 and motor off switch 65
c, and the erecting relay 57 operates.

When the standing relay 57 operates, a current flows from the power supply 50 to one terminal 12b of the motor 12 via the combination switch 51, the breaker 56, and the standing relay a contact 57a, the motor 12 rotates in one direction, and the rotational force is transferred to the stand. Standing reduction gear 14
and one-way torque transmission means 21, drive link shaft 25, drive link arm 27, pin 28, stand link 29, turnbuckle 3
0 and the pin 31 to the main stand 34, and the main stand 34 stands up.

During this stand-up operation, voltage is applied to the emitters of both transistors 69 and 70 of the astable multivibrator 68, so the astable multivibrator 68 operates and A repetitive square wave output is applied to the base of the blinking transistor 67, and the collector-emitter of the blinking transistor 67 is turned on and off, causing the indicator lamp 66 to blink.

Then, when you turn on the parking switch 64,
A voltage is applied to the trigger terminal of the P gate SCR 80 via the capacitor 81 and the resistor 82,
The P gate SCR80 is turned on, the coil 79b of the self-holding relay 79 is energized, and the relay 79 is energized.
Since 9 is self-holding, parking switch 6
Even if the main stand 4 is turned on or off, the motor 12 continues to rotate and the main stand 34 can complete its standing up.

Furthermore, when the stand stands up, the motor off switch 65 is operated by the motor off switch stay 41 and turned off, so the voltage application to the emitter of the transistor 70 of the astable multivibrator 68 is stopped, and the astable multivibrator 68 is turned off. becomes inoperable, and application of the repetitive square wave output to the base of the blinking transistor 67 is stopped;
A voltage is applied to the base of transistor 67 through the emitter-collector of transistor 69 and resistor 77, turning on flashing transistor 67 and keeping indicator lamp 66 illuminated.

Further, when the main stand 34 is completely erected and the motor off switch 65 is turned off, the erecting relay 57 becomes inactive, and the a contact 57 of the relay 57 becomes inoperable.
When contact a turns off, its b contact also turns on.

Although the capacitor 62 is charged while the stand is in operation, due to the inoperation of the stand-up relay 57,
A potential difference occurs between the base and emitter of the transistor 59, turning on the transistor 59, operating the collapse relay 58, and causing current to flow to the + terminal of the motor 12 via its a contact 58a, causing the motor 12 to switch to the main stand. Rotate in the direction of lodging of 34,
P gate SCR80 is turned off, self-holding relay 79 is also deactivated, and self-holding is released.

The rotation of the motor 12 in the direction in which the main stand 34 is brought down is maintained for a time set by the values of the resistor 60 and the capacitor 62, and the rotation of the drive side latch 23 and the driven latch 24 in the one-way torque transmission means 21 is continued. The mesh is disengaged, and the one-way torque transmission means 21 is disconnected.

In this case, the main stand 34 is locked by fitting the parking hole 38 into the engagement groove 26 of the driven latch 24, so that the main stand 34 is maintained in its upright state.

When the main stand 34 is to be laid down, the lever wire 40 is tensioned forward by swinging the parking lever 8 backward, and the parking pole arm 39 and the parking pole 38 are correspondingly moved as shown in FIGS. 4, the main stand 34 is rotated counterclockwise, the engagement of the parking pole 38 with the engagement groove 26 of the driven latch 24 is released, and the main stand 34 can be easily collapsed backward.

Furthermore, after standing up, indicator light 6
6 is continuously lit, it can be confirmed that the stand has been raised, and then when the parking switch 64 is turned off, the indicator lamp 66 is turned off.

In this way, in the embodiment shown in FIGS. 1 to 5, when the main stand 34 completes its rising operation, the starter motor 12 is automatically reversed for a certain period of time in the direction in which the main stand 34 is brought down by the withdrawal circuit 63. However, since the torque transmission state of the one-way torque transmission means 21 is released, the driven latch 24
The main stand 34 can be easily lowered by simply disengaging the parking pole 38 from the engagement groove 26 of the main stand 34.

Furthermore, since the torque transmission state of the one-way torque transmission means 21 is released by the reverse rotation of the starter motor 12,
There is no need for a mechanical detachment mechanism for the one-way torque transmission means 21, which is advantageous in terms of space and cost.

In the embodiment shown in FIGS. 1 to 5, the disconnection circuit 63 is composed of a transistor 59, a variable resistor 60, a diode 61, and a capacitor 62, but as shown in FIG.
A contact 57d', B contact 57e' and timer 9
0 time-limited operation, time-limited return timer A disconnection circuit 91 may be formed by the a contact 90a, and the timer 9
0 is interposed between the breaker 56 and the parking switch 64.

In the embodiment shown in FIG. 6, when the parking switch 64 is turned on and the standing relay 57' and timer 90 operate, the a contacts 57a' and 57d' of the standing relay 57' are turned on, but the timer a contact Since 90a operates for a limited time, the lodging relay 58 does not operate, and if the parking switch 64 remains on, the starter motor 12 rotates in the direction in which the main stand 34 is raised, and the main stand 34 is raised. In this case, after the parking switch 64 is turned on and a predetermined operating time has elapsed, the timer a contact 90a is turned on, but since the b contact 57c' of the standing relay 57' is off, the lodging relay 58 is turned on. It still doesn't work.

When the main stand 34 is fully erected and the motor off switch 65 is turned off, the erecting relay 5 is turned off.
7' becomes inactive and the B contact 57e' of the standing relay 57' is turned on, so the timer A contact 90
Depending on the on state of a, the lodging relay 58 is activated by the timer 9.
Continue the operating state until the time limit return time of 0 is reached,
The starter motor 12 rotates in the direction in which the main stand 34 falls down, and the one-way torque transmission means 21 is released from the torque transmission state.

In the embodiment illustrated in FIG. 6, coil 58c of lodging relay 58 connected to breaker 56
is grounded via the a contact 90a of the timer 90 and the b contact 57e' of the erecting relay 57', but the timer a contact 90a and the erecting relay b contact 57' are removed and a manual a contact switch for disconnection is installed. In such an embodiment, if the manual a contact switch for disengagement is operated after the stand raising operation is completed, the torque transmission state of the one-way torque transmitting means 21 can be disengaged by manual operation of the switch. Furthermore, in the same embodiment, since the torque transmission state of the one-way torque transmission means 21 can be maintained when the stand is in the erect state, a means for holding the stand upright by engaging the engagement groove 26 and the parking pawl 38 is unnecessary. .

In the present invention, as described above, in a motorcycle that transmits the unidirectional rotation of the motor to the stand via the unidirectional torque transmission means to erect the stand, the stand is turned on until the stand is completely erected. a motor forward rotation circuit that rotates the motor in one direction when both a stand-up detection means that is turned off in a stand-up state and a stand-up operation means that is turned on in a stand-up operation state are turned on; a motor reversing circuit that rotates the motor in the opposite direction for a predetermined period of time after the forward rotation circuit is cut off;
Since the one-way torque transmission means is configured to release the torque transmission state after the motor is reversed, the stand is erected by the motor via the one-way rotation transmission means, and then the motor is turned off by the circuit. After rotating in the opposite direction,
The torque transmission state of the torque transmission means can be released, and the stand can be easily lowered.

Further, in the present invention, the torque transmission state of the unidirectional rotation transmission means can be canceled by simply rotating the motor in reverse, so that no mechanical means for canceling torque transmission is required, which saves space and cost. The benefits are great.

[Brief explanation of the drawing]

FIG. 1 is a left side view of a motorcycle equipped with an embodiment of a power drive stand for a motorcycle according to the present invention, FIG. 2 is a right side view of the main part thereof, and FIG. FIG. 4 is a right side view of the main part taken across the main part of FIG. 2, FIG. 5 is a circuit diagram of the embodiment described above, and FIG. 6 is a circuit diagram of another embodiment. 1...Vehicle body, 2...Handle post, 3...Front fork, 4...Front wheel, 5...
...Handlebar, 6...Handle grip, 7...
...Stand operation mechanism, 8...Parking lever,
9... Lever grip, 10... Engine, 11
... Rear wheel, 12 ... Cell motor, 13
... Cell motor rotation shaft, 14 ... Stand erecting reduction device, 15 ... Primary worm, 16
...Primary worm gear, 17...Secondary worm shaft, 18...Secondary worm, 19...Secondary worm gear,
20... Reduction device casing, 21... One-way torque transmission means, 22... Screw spline,
23... Drive side ratchet, 24... Driven ratchet, 25... Drive link shaft, 26... Engagement groove, 27... Drive link arm, 28... Pin, 29... Stand link, 30... Turnbuckle, 31...Pin, 3
2... Frame stand collar, 33... Stand bolt, 34... Main stand, 35... Stand roller, 36... Nut, 37... Pole shaft, 38... Parking pole, 39...
Parking pole arm, 40...Lever wire, 41...Motor male switch stay, 50...
...Power supply, 51...Combi switch, 52...Starter relay, 53...Stop switch, 54
... Starter switch, 55 ... Stop lamp, 56 ... Breaker, 57, 57' ... Standing relay, 58 ... Lodging relay, 59 ... Transistor, 60 ... Variable resistor, 61 ... Diode,
62... Capacitor, 63... Detachment circuit, 64
...Parking switch, 65...Motor off switch, 66...Indicator lamp, 67...
...Blinking transistor, 68...Astable multivibrator, 69,70...Transistor, 7
1, 72...variable resistor, 73, 74...resistance, 7
5, 76... Capacitor, 77... Resistor, 78
... Indicator circuit, 79 ... Self-holding relay, 80 ... P gate SCR, 81 ... Capacitor, 82, 83 ... Resistor, 90 ... Timer,
91...Leaving circuit.

Claims (1)

[Claims] 1. In a motorcycle where the unidirectional rotation of the motor is transmitted to the stand via a unidirectional torque transmission means to erect the stand, the motor is turned on until the stand is completely erected, and is turned off when the stand is fully erected. When both the stand-up detection means and the stand-up operation means which are turned on in the stand-up operation state are turned on, the motor normal rotation circuit that rotates the motor in one direction and the motor normal rotation circuit are cut off. for a predetermined period of time from
A power drive stand for a motorcycle, comprising: a motor reversing circuit for rotating the motor in a reverse direction, wherein the one-way torque transmission means releases the torque transmission state after the motor is reversed.