JP2584215B2 - Reverse device for motorcycle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversing device for a motorcycle capable of retreating a motorcycle by a start motor without using an internal combustion engine for driving.

2. Description of the Related Art In a large motorcycle in which the motorcycle cannot be easily retracted by human power with the clutch disengaged, a reversible reversible reversible to a power transmission transmission that transmits power from the internal combustion engine for driving to the rear wheels. If the step is provided, the motorcycle can be moved backward by the power of the driving internal combustion engine, but in order to stably operate the driving internal combustion engine with the reverse load applied, the idling rotational speed is required. The driving internal combustion engine must be rotated at a higher rotational speed.

However, to move the motorcycle backward, it is extremely slow,
Due to the necessity of rotating the rear wheels, the reduction ratio of the reverse gear must be extremely large in order to reduce the rotation speed from higher than the idling rotation speed to an extremely low rotation speed, resulting in an increase in the size of the transmission. Was inevitable.

In order to solve such a problem, the applicant of the present invention has used a reversing device using a starting motor of a traveling drive internal combustion engine as a reversing drive source (see Japanese Patent Application No. 61-19758 and Japanese Patent Application Laid-Open No. 62-131992). Filed.

Problems to be Solved In a motorcycle equipped with this retraction device, the motorcycle can be easily retreated at an extremely low speed, but the electric control device for performing the forward and reverse rotation of the starting motor is complicated, and the cost is high. There was a disadvantage.

Means for Solving the Problems and Effects of the Invention The present invention relates to an improvement of a reverse drive device for a motorcycle that overcomes such difficulties, and relates to a traveling power transmission system that transmits power from a traveling drive internal combustion engine to rear wheels. Power intermittent means capable of selectively connecting and disconnecting power is provided, and a start motor capable of rotating in only one direction and the traveling drive internal combustion engine, and from the start motor to the traveling drive internal combustion engine. In a motorcycle equipped with a one-way clutch that transmits only a starting force, in a case where the power interrupting means is in a cut-off state, to a reverse power transmission system that transmits a reverse operation from the starting motor to an output shaft of the traveling power transmission system. A reverse clutch that can be connected to the vehicle is interposed, and the idling rotational speed of the internal combustion engine for driving is determined by the rotational speed of the internal combustion engine for driving by the starting motor. It is characterized in that it is faster than that.

Since the present invention is configured as described above, when the start motor is rotated in one direction in a state where the traveling drive internal combustion engine is stopped, the rotational force of the start motor is transmitted via the one-way clutch. The power is transmitted to the driving internal combustion engine, and the driving internal combustion engine is started.

Then, in a state in which the traveling drive internal combustion engine is operating, the power interrupting means is shut off, and the start motor is rotated in one direction, whereby transmission of forward power from the travel drive internal combustion engine to the rear wheel is interrupted. At the same time, reverse power is transmitted from the starting motor to the rear wheel, so that the motorcycle can move backward.

In this case, since the idling rotational speed in the traveling drive internal combustion engine is higher than the rotational speed of the traveling drive internal combustion engine by the starting motor, the transmission of power from the starting motor to the traveling drive internal combustion engine is interrupted. All the power of the starting motor is effectively used for retreating the motorcycle, the discharge of the battery is controlled, and the speed is much lower than that of a conventional motorcycle that retreats by a driving internal combustion engine. The motorcycle can be retracted.

Further, in the present invention, the starting motor always rotates in one direction even at the time of starting or retreating, so that the electric control device of the starting motor is simplified, and the cost can be reduced.

Furthermore, in the present invention, the motorcycle can be moved backward while the traveling drive internal combustion engine is idling, so that the starting motor is stopped and the power interrupting means is connected, whereby the motorcycle can be immediately advanced, It is very easy to put the car in the garage to move forward and backward, and to pull the garage.

Embodiment An embodiment of the present invention shown in FIGS. 1 to 8 will be described below. FIG. 1 is a side view of a motorcycle provided with a reversing device of the present invention, FIGS. 2, 3, and 4 show a power unit including a horizontally opposed six-cylinder engine and a transmission, and FIG. FIG. 3 is a schematic view of the back, and FIG.
It is sectional drawing of the unit along a line. In FIG. 2, 101
Is the power unit housing, 102 is the clutch cover, 1
03 is an alternator, 104 is a starting motor, 105 is an output bearing mounting hole, 105a is a center point of a reverse shaft, and a cylinder head 106 and a cover 107 are connected to both ends of the housing 101, 108
Indicates an intake port of the cylinder head 106, 109 indicates an exhaust port, and 110 indicates a center point of the crankshaft.

In FIG. 3, one cylinder block 111 has 3
The pistons 112 are inserted and connected to the crankshaft 113. 2 fixed to the right end, that is, the front end of the crankshaft 113
The cam shafts 116 on both sides are driven by the pulleys 114 via the timing belt 115.

The housing 101 supports the main shaft 118, the counter shaft 119, the shift drum 120, and the output shaft 121 of the transmission 117 in parallel with the crankshaft 113 as in the conventional device. Crankshaft 11
At the left end of 3, an output gear 122 and a boss 124 of a one-way clutch 123 for starting are fixed.
5 and a one-way transmission element 126 is interposed between the ring integral with the boss 124 and the sleeve, so that the input gear 125, the element 126, and the boss 124
Drive the crankshaft 113, and after starting, start input gear 1
Although 25 stops, the one-way clutch 123 keeps the crankshaft 113 rotating without being restricted in the rotation direction.

A transmission shaft 12 of the transmission 117 has the same transmission gear 12 as the conventional device.
7, a clutch 128 is provided, and the transmission gear 12 is also provided on the counter shaft 119.
9, the clutch 130 is provided. Further, a clutch input sleeve 131 is rotatably supported on the left side of the main shaft 118 by a needle bearing 132, and a clutch input gear 133 and an oil pump driving sprocket 134 are fixed thereto, and an input member 136 of the main clutch is fixed. .

The main clutch 135 alternately arranges a number of friction plates 138 locked to one of the output members 137 of the input member 136, and pressurizes with a pressing plate 139 and a disc spring 140 to constantly drive the gears 122, 13
3. The rotation transmitted from the sleeve 131 is transmitted to the main shaft 118.

A hydraulic cylinder 141 is provided on the clutch cover 102, and a right-handed pressure is applied to the piston 142, the rod 143, the bearing 144, and the release plate 145. The crimping can be released. The output member 137 is fixed to the main shaft 118 via the boss 146.

A driven gear 150 is loosely fitted on the right side of the output shaft 121, meshes with a fixed output gear 151 on the left side of the counter shaft 119, and the reverse driven gear 1 is further
52 is loosely fitted. Sliders 154 and 155, which are pressed to both sides by a compression spring 153a, are fitted to splines 153 of the output shaft 121,
The driven gear 150 and the slider 154 form a cam damper 156. The cam damper 156 is formed by forming an uneven surface having protrusions 158, 159 on the side surfaces of the gear 150 and the slider 154, and engaging the uneven surface. When an impact load or reverse torque is applied, the protrusion 159 is formed. The slider 154 moves along the slope of the side surface of the protrusion 158 to perform a buffering action by retreating and relatively rotating the slider 154.

A torque limiter 160 is formed between one of the reverse driven gear 152 and the slider 155, and is constituted by the engagement between the gear 152 and the slider 155, which have large and shallow irregularities 161, 162.

The output of the starting motor 104, as apparent from FIG.
The power is transmitted to the two-stage planetary reduction device 163 and decelerated at each stage. The output of the preceding stage is transmitted as it is to the starting system, and the output of the latter stage which is reduced by two stages is transmitted to the reversing system to perform low-speed driving.

The planetary reduction gear of the preceding stage is a carrier supported by a sun gear 164 and a bearing 165 attached to the rotation shaft of the starting motor 104.
166 comprises a planetary gear 168 supported by a shaft 167, a ring gear 168a fixed to the housing, and the like.The output side of the carrier 166 is a starting shaft 170, which is provided with a sun gear 171 at a later stage and a starting gear 172. The starting input gear 125 is connected via a spline 173 via an idler 174.

The planetary reduction gear at the subsequent stage includes the sun gear 171 and the starting shaft 1
70, a hollow reverse output shaft 176 supported from outside by a bearing 175, and a carrier 17 integrated with the output shaft 176.
The planetary gear 178 supported on the shaft 177 at 6a and the ring gear 178a fixed to the housing 101 transmit the rotation of the sun gear 173 reduced at the previous stage to the reverse output shaft 176 at a further reduced speed. This reverse output shaft 176 has a reverse driving gear 1
79 is engraved.

Reverse clutch device 1 for transmitting the rotation of the reverse driving gear 179 to the output shaft at an intermediate position between the starting shaft 170 and the final output shaft 121
A reverse drive system is formed by the device 180 and the second stage of the planetary reduction device 163, and the device 180 drives the reverse driven gear 152. The device 180 includes a reverse shaft 181,
It has a reverse drum 183 with a pin 182 and an inclined groove 184,
The pin 182 and the oblique groove 184 form a cam transmission mechanism as shown in FIG. 5, and the other pin 182a and the housing are directly guided by the groove 182b, and the rotation of the reverse shaft 181 causes the reverse drum 183 to move in the axial direction. Moving. A sleeve 188 is rotatably held on the drum 183 by a lead bearing 185 and rings 186 and 187. A slide gear 189 and a spline 190 are engraved on the outer periphery of the sleeve 188, and an interlocking gear 192 meshes with the spline 190. Therefore, the reverse shaft 181
When the is rotated, the reverse drum 183 moves in the axial direction, and the slide gear 189 held by the reverse drum 183 also reciprocates to engage or disengage with the reverse driven gear 152 on the output shaft 121. At this time, the movement of the interlocking gear 192 is prevented by the projections 193 and 194 extending from the housing 101, and the interlocking gear 192 is constantly engaged with the reverse driving gear 179, so that it continues to rotate, and the slide gear 189 also keeps rotating due to this rotation.

The movement of the reverse gear 181 in the reverse clutch device 180 to the engagement position of the slide gear 189 by the transmission 117
The restriction device 195 is interposed between the reverse shaft 181 and the transmission 117 in order to limit only the neutral state. As shown in FIG. 4, the lever 196 is attached to the reverse shaft 181 by the boss 19 thereof.
6a, which is connected to a pawl 198 mounted by a link 197, and a shift drum 120 is provided with a screw 199, a groove 202 of a rocker 201 fixed with a pin 200, and a shift drum 1 of a transmission 117.
The claw 198 is caused to fall into the groove 202 only when the 20 is in the neutral position, and the slide gear 189 engages with the reverse auxiliary gear 152 only when the claw 198 falls into the groove 202. A cam 196b is connected to the lever 196 to display the reverse position, a reverse switch 196c is fixed to the housing 101, and the switch transmits a signal to an indicator on the meter panel.

Collar 205, arm 20 on the left of the reverse shaft 181
6. A collar 207 is fixed with a screw 208, and a return spring 209 is engaged with a finger 206a on the inner side of the arm bar 206 to apply a rotating power to the reverse shaft 181. Thereby, the reverse drum 183 is moved to the left position. Pressurized. Another spring 210 is loosely fitted to the collar 207 and engages both sides of the outer finger 206b of the arm 206 as shown in FIG.

A reverse arm 211 is pivotally attached to the collar 207, and the reverse arm 21 is provided with a window 212 and a pressing finger 213,
The finger 206b of the arm 206 is made to protrude from the window 212, and the finger 206b and the pushing finger 213 are compressed with the two legs of the spring 210.

A pivot 214 is implanted in the reverse arm 211 as shown in the lowermost part of FIG. 4 and in FIG. 8, to which a reverse shifter 215 is connected. The reverse shifter 215 includes a support shaft 216.
Pivotally attached to the housing 101, and pivot 21 with a pair of projections 218.
4, a cable 219, 220 connected to the lever 217 on both sides of the support shaft 216 by connection fittings 219a, 220a, and a reverse connected to the vehicle body by a support shaft 221 and connected to each other end of the cable on both sides. And a handle 223. As shown in FIG. 1, the reverse handle 223 is installed so as to be able to be pulled out from a recess on the side of the vehicle body, for example, below the fuel tank T, and is pulled out to the side when necessary to perform upward operation when required.

When the reverse handle 223 is turned to the reverse side, the reverse arm 211 is turned in the direction of the arrow 224 in FIG.
This causes one leg of the spring 210 to rotate in the same direction,
The finger 206b is pressed in the same direction by the other leg via 10. Therefore, the reverse shaft 181 also receives the rotational torque in the same direction by the arm bar 206.

Now, when the transmission 117 and thus the shift drum 120 are in the neutral position, the lever 196 is
To rotate the claw 198 through the link 197 to the groove 202 of the rocker 201.
To lock the shift drum 120 in the neutral position,
At the same time, the reverse drum 183 is advanced by the pin 182 to move the slide gear 189 to the reverse driven gear 152 on the output shaft 121.
Engage with. When the switch of the starting motor 104 is pressed in this state, the rotation of the motor 104 is changed to the two-stage planetary reduction gear 163.
And the reverse driving gear 179 and the interlocking gear 1
92, the combination of the slide gear 189 and the reverse driven gear 152 reduces the speed of the output shaft 121 and thus the rear wheel RW
Is driven backward at a very slow speed.

At this time, the starting shaft 170 is also decelerated and rotated by the planetary reduction device at the preceding stage of the planetary reduction device 163, and the starting gear 172, the idler 1
The starting gear 125 on the crankshaft 113 is rotated through 74, but the rotation speed is about 550 rpm, and the idling rotation of the crankshaft 113 is about 800 rpm.
With 123, rotational interference of the starting system can be avoided.

If the shift drum 120 is not in the neutral position,
Since 98 does not fall into the groove 202, even if the reverse handle 223 is turned, it moves up to the reverse arm 211 and presses the finger 206b via the spring 210, but the reverse shaft 181 of the reverse clutch device 180 does not rotate but slides. Gear 189 cannot move. Then, when the shift drum 120 is neutralized, the reverse shaft 181 is finally pushed out by the spring 210 and rotated, so that the slide gear 189 can be engaged with the gear 152.

With the above configuration, when performing a normal start,
The main clutch 135 is disengaged, the shift drum 120 is set in the neutral position, and the reverse handle 223 is set to the normal rotation position. Accordingly, the reverse shaft 181 is rotated to the inoperative position by the spring 210, and is simultaneously pressed to the position by the return spring 209 and stopped at the position. When the starting motor 104 is operated in this state, the rotation is transmitted from the reverse driving gear 179 of the planetary reduction gear at the subsequent stage of the planetary reduction gear 163 to the interlocking gear 192, but since the slide gear 189 is at the left position, the reverse driven gear 152 Is not driven.

On the other hand, from the planetary device at the preceding stage, the starting input gear 1 through the start 170, the spline 173, the starting gear 172, and the idler 174.
The rotation is transmitted to 25, and the engine can be started by rotating the crankshaft 113 via the one-way clutch 123,
After the start, the vehicle can run forward by operating the main clutch 135 and the shift drum 120.

To move the vehicle backward, stop the vehicle and
When the reverse handle 223 is rotated to the reverse position while the neutral position of the lever 7 is in the neutral state, the torque is applied to the lever 21 as described above.
7, transmitted from the reverse arm 211 and the spring 210 to the reverse shaft 181, and furthermore, the lever 196, the link 197, and the claw 1 of the control device 195.
98, the claw 198 is a rocker integrated with the shift drum 120
The shift drum is dropped into the groove 202 of 210 and locks the shift drum at the neutral position, and the reverse shaft 181 rotates by a predetermined angle. As a result, the reverse clutch device 180 is operated, the drum 183 is advanced by the pin 184, and the slide gear 189 is rotated by the reverse driven gear.
Engage with 152. When the start switch is pressed to energize the start motor 104, the low-speed rotation reduced to two stages by the planetary reduction gear 163 causes the reverse driving gear 179, the interlocking gear 192, the slide gear 189, the reverse driven shaft 152, and the torque limiter 160 to rotate. The power is transmitted to the output shaft 121 as reverse rotation, and the vehicle can be moved backward at a very low speed.

The alternator 103 includes an elastic joint 230, gears 231, 232
, And is constantly driven by the crankshaft 113.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle provided with a retraction device of the present invention, FIG. 2 is a rear view of a power unit housing in one embodiment of the retraction device of the present invention, and FIG. 3 is III-I of FIG.
FIG. 4 is an enlarged view of the reverse drive system in FIG. 3, FIG. 5 is a development view of the reverse drum, FIG. 6 is a front view of the reverse arm, and FIG. FIG. 8 is a front view of the restraint device connected to the reverse clutch device, and FIG. 8 is a perspective view of the reverse shifter.

 ──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Haruyasu Fujita 1-4-1 Chuo, Wako City Inside Honda R & D Co., Ltd. (72) Inventor Yoshiaki Hirosawa 1-4-1 Chuo Wako City Hon Co., Ltd. (72) Inventor Toshifumi Ito 1-4-1 Chuo, Wako-shi Honda Research Institute, Inc. (56) References JP-A-60-252079 (JP, A) Jpn. JP, U) Japanese Utility Model Showa 62-131992 (JP, U)

Claims (4)

(57) [Claims] A traveling power transmission system for transmitting power from a traveling drive internal combustion engine to rear wheels is provided with power intermittent means for selectively connecting and disconnecting power, and can rotate only in one direction. A motorcycle in which a one-way clutch for transmitting a starting force only from the start motor to the traveling drive internal combustion engine is interposed between the start motor and the traveling drive internal combustion engine, A reversing power transmission system for transmitting reversing power to the output shaft is provided with a reversing clutch which is in a connectable state when the power intermittent means is in a disconnected state, and an idling rotational speed of the traveling drive internal combustion engine is a starting motor. A reverse drive device for a motorcycle, wherein the rotational speed is higher than the rotational speed of the internal combustion engine for driving the vehicle. 2. The power transmission / disconnection means of the traveling power transmission system is a transmission which can be set to a neutral position, and only when the transmission is set to a neutral position when a reverse operation member is operated to the reverse side. The reverse device for a motorcycle according to claim 1, wherein the reverse clutch is connected. 3. An engaging member capable of removably engaging a shift operation portion of the transmission at a position where the transmission is set to a neutral position.
The reversing device for a motorcycle according to claim 2, wherein a movable portion of the reversing clutch is connected. 4. The reverse device according to claim 3, wherein the movable portion of the reverse clutch and the reverse operation member are connected via a lost motion mechanism.