JPH0224711B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power stand device for a motorcycle.

(Prior art) Japanese Patent Publication No. 35-10415 is known as a stand device that raises and lowers the stand by remote control using an operator, but in this known technology, the entire range of raising and lowering the stand is done manually, which makes the vehicle heavy. Sometimes there are problems that require a large amount of operating force.

Furthermore, Japanese Patent Publication No. 37-12158 is known as a stand device that automatically raises and lowers the stand using a motor, but such known technology requires only a small operating force from the retracted state to the time when the stand touches the ground. However, since the stand is raised and lowered entirely by a motor, there is a problem in that it takes a long time to raise and lower the stand.

(Problem to be solved by the invention) Therefore, the stand is operated manually while a small operating force is required, and the stand is operated using the power of the drive source for sections that require a large operating force after the stand touches the ground. It is conceivable that the stand may undulate, but in such a case a clutch mechanism would be required to transfer human power and power from the drive source to the stand, which would require a large number of parts and would be inconvenient in making the stand device more compact.

The present invention has been devised in view of the above circumstances, and the object of the present invention is to reduce the number of parts, create a compact structure, and allow the stand to be operated manually while requiring only a small amount of operating force. To provide a power stand device for a motorcycle that can operate the stand using the power of a drive source in a section where a large operating force is required.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a slide member that moves by the operation of a drive source, which swings integrally with the stand and overlaps the movement locus of the slide member. A swing arm is provided, which has a swing locus that moves, and is in an engaged/disengaged position where it can engage and disengage from the slide member near the grounding point of the stand, and detects the engaged/disengaged position of the swing arm to operate the drive source. It is characterized by being provided with a detection means.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a side view of the motorcycle.

1 is a motorcycle, 2 is a front wheel, 3 is a handle, 4
is a drive unit in which an engine and a transmission case are integrated, 5 is a rear wheel, 6 is a seat, the body frame 7 is covered with a cover 8, a stand 11 is provided below the footrest floor 9, and the stand 11 is a return The spring 12 biases the housing in the upward swinging direction, that is, in the retracted state.

The stand 11 is raised and lowered manually in the light load area by operating a control lever 13 provided on the vehicle body frame 7 in front and above the floor 9, and in the heavy load area after the stand 11 touches the ground by a drive source such as a motor. Activate it.

As shown in FIGS. 2 and 3, the operating lever 13 is provided on a bracket 22 attached to the rear of the intermediate portion of the down tube 21 via a support shaft 23 so as to be swingable up and down.

The operating lever 13 has a grip part 26 with a lock button 24 inside and a bent part 25 formed therein, and a collar 3.
a base portion 32 rotatably coupled to the support shaft 23 via a spring pin 33; an intermediate cylindrical portion 34 having one end coupled to the bent portion 25 via a spring pin 33 and the other end fitted to the base portion 32; Equipped with. A lock bar 35 is slidably fitted over the bent portion 25, the intermediate cylindrical portion 34, and the base portion 32, and an arm 37 having a roller 36 at the tip is fixed to the collar 31.

The lock button 24 is biased by a spring 41 so as to always protrude.
A cam surface 42 is formed at the tip of the lock button 4, and a spring pin 43 driven into the grip portion 26 regulates the operating stroke of the lock button 24 and prevents the lock button 24 from rotating.

The cam surface 42 is located at the upper end of the lock bar 35.
Install the roller 44 that comes into contact with the lock bar 35.
is biased toward the roller 44 by a spring 45. A lock pin 46 is attached to the lower end of the lock bar 35, and the lock pin 46 is attached to the base 32.
It fits into the long hole 47 of.

A lock pin 46 is provided at the bottom of the bracket 22.
A cam groove 51 is provided for guiding and holding. The cam groove 51 has a circular arc portion 5 with a large diameter as shown in FIG.
2 and a circular arc portion 53 having a smaller diameter. Locking grooves 54 and 55 extending radially outward are formed at the outer ends of both arcuate parts 52 and 53, respectively.
A projection 56 projecting radially outward from the inner groove surface and a projection 57 projecting radially inward from the outer groove surface are formed at the boundary between the grooves 2 and 53. Figure 4 shows stand 11
The figure shows the position of the operating lever 13 when it is in the retracted state. In this state, the lock pin 46 engages with the locking groove 54 and the operating lever 13 cannot swing up and down. To swing the operating lever 13 upward, push the lock button 24 and swing it upward. When the lock button 24 is pressed, the lock pin 46 moves from the locking groove 54 to the arcuate portion 52 via the lock bar 35, allowing the operating lever 13 to swing upward. While holding down the lock button 24, swing the operating lever 13 upward. As shown by the imaginary line 46a in FIG. 4, the lock pin 46 is engaged with the protrusion 56, and the operating lever 13 is no longer able to swing upward. Also,
When the lock button 24 is released and the operating lever 13 is swung upward, the lock pin 46 is
7, and no further upward swinging is possible. Therefore, the projections 56 and 57 provide a temporary stop function when the operating lever 13 is pulled up to the highest position. To raise the operating lever 13 to the highest position, push the lock pin 4 by operating the lock button 24.
6 to the arcuate portion 53, and while pressing the lock button 24, pull up the operating lever 13 slightly and release the lock button 24. This allows the lock pin 46 to
moves to the locking groove 55, and the operating lever 13 is held in the uppermost position.

A link arm 62 is rotatably provided at the bottom of the bracket 22 via a support shaft 61. As shown in FIG. 5, a pin 63 is attached to one arm of the link arm 62 and a hole 64 is bored therein, and the other arm has a cam surface 65 for guiding the roller 36.
form. One end of a cancel spring 71 is locked in the hole 64, a casing 72 is provided so as to cover the cancel spring 71, and the pin 63 is inserted into a long hole 73 formed at one end of the casing 72.
and connect the cable 81 to the other end of the casing 72.
The inner 82 of the cancel spring 71 is locked, and the other end of the cancel spring 71 is locked with a spring pin 85 provided near the other end.

The cam surface 65 of the link arm 62 includes a concave operating surface 91 and an arcuate surface 92 centered on the center of the support shaft 23 . When the stand 11 is in the retracted state, the roller 36 is as shown by the imaginary line 36a in FIG. Upon engagement with the operating surface 91, the link arm 62 swings to pull up the cable 81, and after the roller 36 reaches the upper end of the operating surface 91, even if the operating lever 13 is raised, the connection between the roller 36 and the arcuate surface 92 will not continue. The link arm 62 does not swing due to the engagement.

The stand 11 is located on the floor 9 as shown in FIG.
A bracket 10 is installed below the cross member 102 that connects the lower down frames 101, 101.
3. Provided via a support shaft 104. The stand 11 consists of a pair of left and right members 105, 105, and the left and right members 105, 105 are cross members 1
Connect with 06. In order to operate the stand 11, a power unit 111 is connected to the cross member 10.
Bracket 112, 112 bolt 11 below 2
The power unit 111 includes a motor 114.

Inside the case 115 of the power unit 111 is a screw shaft 12 that extends in the longitudinal direction of the vehicle.
1 and an output shaft 122 extending in the left-right direction of the vehicle.
The axial center of No. 2 is aligned with the axial center of the support shaft 104.

As shown in FIG. 7, the screw shaft 121 is rotatably supported via bearings 131, 132, connected to a motor 114 via gears 133, 134, 135, etc., and rotated by the motor 114.

Trapezoidal threaded portion 1 of the screw shaft 121
A slide piece 142 is screwed into 41. The slide piece 142 includes a cylindrical portion 143 that is screwed into the trapezoidal threaded portion 141, and arm portions 144, 144 extending from both sides of the cylindrical portion, respectively. The arm portion 14
4 and 144 are slidably fitted into the sliding grooves 153 and 154 of guide members 151 and 152 respectively attached to the case 115 with a sliding member 155 interposed therebetween, and the slide piece 142 is slidably fitted by the rotation of the screw shaft 121. is configured to move in the longitudinal direction of the screw shaft 121.

The output shaft 122 has a bearing 16
1, 162, and the output shaft 122 has a swing arm 171 so as to rotate integrally with the output shaft 122.
Install. The swing arm 171 is the arm portion 1
Bifurcated arm portion 172,1 corresponding to 44,144
72, and the engagement groove 17 of each arm portion 172, 172.
3 is engaged with the arm portion 144, and the movement of the slide piece 142 causes the swing arm 171 to swing and the output shaft 122 to rotate. In the figure, 174 indicates a sliding member.

A collar 177 is attached to a portion of the output shaft 122 exposed from the case 115 by spline connection with a washer 176 interposed, and the collar 177 is fixed by a washer 178 and a nut 179. The base of the cable disk 182 is rotatably fitted into the collar 177, and the bracket 203, which stands up from the cross bar 106, is welded to the collar 177.

As shown in FIG. 10, the cable disk 182 includes a groove 221 that allows the cable inner 82 to be wound up freely, and an engagement surface 222 that engages with the crossbar 106. 106a, 106b, 1 in the figure
06c indicates the position of the crossbar 106 when the stand is retracted, near the grounding point, and when lifted up. The cable disk 182 comes into contact with a stopper 223 protruding from the case 115 near the grounding point.

The motor 114 has three switches 301, 3
Controlled by 02,303.

The switch 301 is shown in FIGS. 6, 11 to 13.
As shown in the figure, it is provided on the back side of the guide member 151. The switch 301 has fixed contacts 311 and 312 attached to both ends of the sliding groove 153, and is turned on and off by contact with a movable contact 313 attached to the end of the arm 144, and 314 in FIG. 12 is the movable contact. 313 is shown. The switch 301 is turned on when the stand is retracted as shown at 144a in FIG. 11, and when it is lifted up as shown at 144b, and is turned off during that time.

The switch 302 is provided to turn on and off in accordance with the sliding movement of the swing arm 171. That is, as shown in FIGS. 6 and 11, a guide member 322 having an arcuate sliding groove 321 is provided below the guide member 151, and a switch 302 is provided at one end of the guide member 322.
A fixed contact 323 of the switch 302 is provided facing toward one end of the switch. A movable contact 324 is slidably incorporated into the guide member 322, and a shaft portion 325 protruding from the sliding groove 321 is engaged with a long groove 326 of the swing arm 171. The switch 302 is turned off between the stand retracted state as shown by 325a in FIG. It is set to be on during state 325c.

The switch 303 is provided on the operating lever 13 side.
That is, as shown in FIGS. 3 and 4, a guide member 332 having an arc-shaped long groove 331 is provided facing the tip of the base 32, a switch 302 is provided at one end of the guide member 332, and a sliding groove is provided. 331
A fixed contact 333 of a required length is provided so as to face. A movable contact 334 is slidably incorporated into the guide member 332, and a shaft portion 335 protrudes from the sliding groove 331.
into the hole 336 of the base 32. The switch 303 is turned off between the stand retracted state as shown by 335a in FIG. 4 and the vicinity of the grounding point where the stand 11 touches the road surface, shown as 335b, and is turned on between the vicinity of the grounding point 335b and the lift-up state 335c. form like this.

Next, the configuration of the control circuit will be explained based on FIG. 14. The terminal 350 is a terminal connected to the anode of the power source, and between this terminal 350 and the ground, a relay switch 351a of a first relay 351 and a relay switch 35 of a second relay 352 for selecting forward/reverse are connected.
A motor 114 is connected in series via 2a. Also, the power switch 3 is connected to the terminal 350.
53, and a circuit in which the relay coil 351b of the first relay 351 and the collector-emitter of the transistor 354 are connected in series between the downstream terminal and the ground, and the relay coil 352b of the second relay 352 and the transistor 355 are connected in series. A circuit whose collector and emitter are connected in series is connected in parallel.

On the other hand, in the switch 301, a movable contact 313 is grounded, and each fixed contact 311, 312 is connected to a resistor 3.
56, capacitor 357 and Zener diode 3
58 and a resistor 359, and is connected to the downstream terminal of the power switch 353 via a constant voltage circuit 360. And the fixed contact 311 is
It is connected to one input of AND gate 361 and NOR gate 362, and fixed contact 312 is connected to one input of AND gate 361 and NOR gate 362.
61 and other inputs. In addition, the switch 3
02 and 303 are connected in series, and the upper terminal thereof is connected to the output terminal of the constant voltage circuit 360 through a resistor 363, and is also connected to the other input of the NOR gate 362 and both inputs of the AND gate 364.
Its lower terminal is grounded.

The output signal of the AND gate 361 is transmitted through a diode 365 and resistors 366 and 367.
The output signal of the NOR gate 362 is the diode 36
8 and to the base of the transistor 354 via resistors 366 and 367. Further, the output signal of the AND gate 364 is applied to the base of the transistor 355 via resistors 369 and 370. The control circuit having the above configuration is the switch 30.
Based on the combination of on/off operations 1, 302, and 303, the motor 114 is operated as follows. A table of operation modes is shown in FIG. 15, and the slide piece 142
The relationship between the swing arm 171 and the swing arm 171 is shown in FIG. 16, and will be explained with reference to these charts. It is assumed that the power switch 353 is in the on state.

First of all, when you finish driving and lift up,
Initially, the vehicle is in a stopped state and the stand 11 is in a retracted state. At this time, switches 302 and 303
is off, and the switch 301 is in the on state because the movable contact 313 is connected to the fixed contact 311.
The output of the AND gate 361 is "0", the output of the NOR gate 362 is "0", and the output of the AND gate 364 is "1". Therefore transistor 35
4 is turned off and the relay switch 351a is turned off, and the transistor 355 is turned on and the relay switch 35 is turned off.
2a is in a reversed state as shown, and the motor 114
doesn't work.

When the operating lever 13 is rotated upward, the stand 11 is manually moved down to the grounding position.
At this time, the operating lever 13 is moved as shown in FIG.
The roller 36 swings from position 36a to position 36b, pulls up the cable 81 via the operating surface 91, and then swings the operating lever 13 upward to move the roller 36 guided by the arcuate surface 92. 81 is not activated. cable disk 182
As shown in FIG. 10, the crossbar 106 is moved from 106a to 106b by pulling up the cable 81.
The stand 11 hits the stopper 223 at the grounding position, and the rotation of the cable disk 182 is prevented, and the operation lever 1 by the operating surface 91 is subsequently
The overstroke of 3 is absorbed by the expansion of the cancel spring 71. FIG. 16a shows the relationship between the arm portion 144 of the slide piece 142 and the swing arm 171 in the stand retracted state, and the crossbar 1 is connected to the cable disk 182.
06, the swing arm 171 swings to the engagement/disengagement position where it can be engaged with and disengaged from the arm portion 144 as shown in b, and the stand 11 is grounded in this state.

When the switch 303 is turned on when the stand 11 is grounded by operating the control lever 13, the switches 302 and 303 are turned on and the switch 301 remains in the above state, so the output of the NOR gate 362 becomes "1" and turns on the transistor 354. and turn on the relay switch 351a,
The output of the AND gate 364 becomes "0", turning off the transistor 355 and turning off the relay switch 352a.
By switching to the normal rotation side, the motor 114 is caused to rotate in the normal direction. The slide piece 142 moves due to normal rotation of the motor 114, and the arm portion 144 engages with the swing arm 171 as shown by the imaginary line in FIG.
71 to stand up the stand 11, the lift-up is completed in the state shown in g, and the front wheel 2 is lifted.

In addition, when canceling lift-up in the middle, when the operating lever 13 is returned to its original position, the switch 303 is turned off, and the switch 301 is in the off state during the process, so the output of the AND gate 361 is "1",
The output of the AND gate 364 becomes "1", the relay switch 351a is kept on, and the relay switch 352a is switched to the reverse side, so that the motor 11
The stand 11 can be retracted by performing a reverse operation until the stand is in contact with the ground.

When the lift-up is completed, the switches 302 and 303 are on, the movable contact 313 of the switch 301 is connected to the fixed contact 312, and the switch 301 is on, and the output of the AND gate 361 is "0".
As a result, the transistor 354 is turned off, the relay switch 351a is turned off, and the forward rotation of the motor 114 is stopped.

Next, lift down will be explained. Operation lever 13
When rotated downward, the switch 303 turns off, the output of the NOR gate 362 becomes "1" and the output of the AND gate 364 becomes "1", turning on the relay switch 351a and turning on the relay switch 352a.
is in a reversed state, and the motor 114 operates in reverse.
The slide piece 142 is rotated by reversing the motor 114.
moves, as shown in Figure 16 g to j, b.
The swing arm 171 is swung to bring the stand 11 to the grounding position and the swing arm 171 is returned to the engagement and disengagement position.Therefore, until the front wheels 4 touch the ground, the stand 11 swings while being regulated by the slide piece 142, and the lift down is gradual. It will be done.

When the lift down is completed, switch 30
1 is turned on when the movable contact 313 connects to the fixed contact 311, and the AND gate 36
The reverse rotation of the motor 114 is stopped by setting the output of 1 to "0" and turning off the relay switch 351a, and as shown in FIGS. Stop at the position. Note that when the operating lever 13 is lifted upward again during lift-down, the switch 303 is turned on, and since the switch 302 is on and the switch 301 is off, the output of the AND gate 364 becomes "0". The relay switch 352a is switched to the normal rotation side, and the motor 114 performs normal rotation operation, thereby making it possible to cancel the lift-down.

After the motor 114 stops at the grounding position, the stand 11 is closed due to the return spring 12 and the weight of the vehicle.
The switch 301 springs up and enters the retracted state.
is turned on, and switches 302 and 303 are turned off.

As is clear from the above description, according to this embodiment, the stand 11 can be quickly actuated by an input from the operating lever 13 while only a small operating force is required until the stand 11 touches the ground.
After the stand 11 touches the ground, the stand 11 can be raised and lowered by the power of the motor 114 in a section that requires a large operating force. In addition, since human power and power from the motor 114 are transferred to the stand 11 by engaging and disengaging the slide piece 142 and the swing arm 171, a complicated clutch mechanism is not required.
The number of parts can be reduced and the power stand device can be made more compact.

Incidentally, a cable disk 182 may be attached to a portion of the output shaft 122 exposed from the case 115 via a clutch mechanism 181. A second embodiment in which this clutch mechanism 181 is provided will be described. The clutch mechanism 181 has a rectangular head 191 as shown in FIGS.
The set bolt 192 embedded in the set bolt 192 is integrally rotatable via the output shaft 122 and the teeth 193, 194, and is slidable along the set bolt 192 in the direction away from the set bolt head 191 via the spring 190. A clutch 195 is biased, a clutch plate 197 is rotatably attached to the clutch 195 via a circlip 196, and the base of the cable disk 182 is loosely fitted and rotatably fitted to the end of the output shaft 122. The combined clutch collar 201 and
A bracket 203, which is provided with a retractable boot 202 attached to the clutch collar 201 and is erected from the cross bar 106, is attached to the clutch collar 201.
Fixed to.

In the figure, 211 indicates an engagement protrusion formed on the clutch collar 201, and 212 indicates an engagement recess formed on the clutch 195.
Clutch action is performed by engaging and disengaging. That is, under normal conditions, as shown in the upper half of FIG. is transmitted to the stand 11 via the teeth 193, 194, the recess 212, the protrusion 211, the clutch collar 201, and the bracket 203, causing the stand 11 to swing.

In addition, when operating purely manually in the event of a motor failure, etc., the clutch plate 19 is
7 by hand so as to separate from the rectangular portion 213, the engagement between the concave portion 212 and the convex portion 211 is released, and the set bolt head 191 is removed from the rectangular portion 213.
The bracket 203, that is, the connection between the stand 11 and the output shaft 122 is cut off.

(Effect of the invention) As is clear from the above explanation, according to the present invention,
The number of parts can be reduced, the structure is compact, and the stand can be operated by human power while a small operating force is required, and the stand can be operated by the power of the drive source in sections that require a large operating force.

[Brief explanation of drawings]

Figure 1 is a side view of the motorcycle, Figure 2 is a side view of the operating lever, Figure 3 is a sectional view of the same, Figure 4 is a diagram showing the relationship between the operating lever, lock pin, and switch, and Figure 5 is a diagram showing the relationship between the operating lever, lock pin, and switch. 2 is a sectional view taken along the line 2, FIG. 6 is a transverse sectional view of the power unit, FIG. 7 is a longitudinal sectional view thereof, FIG. 8 is a sectional view of the clutch in the second embodiment, and FIG. 9 is a sectional view of the power unit. Fig. 10 is a side view of the cable disk part, Fig. 11 is a side view of the switch part incorporated in the power unit,
Fig. 12 is a sectional view of the same, Fig. 13 is a side view of the guide member, Fig. 14 is a control circuit diagram, Fig. 15 is a diagram showing the operation mode of each switch, and Fig. 16 is a diagram showing the relationship between the slide piece and the swing arm. It is a figure showing a relationship. In addition, 1 in the drawing is a motorcycle, 11 is a stand, 1
3 is an operating lever, 81 is a cable, 111 is a power unit, 121 is a screw shaft, 12
2 is the output shaft, 114 is the motor, 1
42 is a slide piece, 171 is a swing arm, 182 is a cable disk, 301, 30
2,303 is a switch.

Claims (1)

[Scope of Claims] 1. A slide member that moves by the operation of a drive source, which swings integrally with the stand, has a swing locus that overlaps with the movement locus of the slide member, and has a swing locus that overlaps with the locus of movement of the slide member, and which swings in the vicinity of the grounding point of the stand. A power stand device for a motorcycle, comprising: a swing arm that is in an engaged/disengaged position that can be engaged with and disengaged from the slide member; and a detection means that detects the engaged/disengaged position of the swing arm and operates the drive source.