Vehicle geared motor

Abstract

To provide a gear inclusive motor of a vehicle making it possible to make a vehicle width size compact.SOLUTION: A motor 20 includes: a gear shaft 24 projecting in an axial direction as a direction in which an output shaft 22 extends from a motor case 36; an inside bearing 46 provided inside in an axial direction at a position closest to the motor case 36 on the gear shaft 24; a driven gear 28 provided outside in an axial direction of the inside bearing 46 on the gear shaft 24; a rotator 30 provided outside in an axial direction of the driven gear 28 on the gear shaft 24 and connected with a power transmission member 18 for transmitting power of the motor 20 to a rear wheel 16; and an outside bearing 48 provided outside in an axial direction of the rotator 30 on the gear shaft 24.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a geared motor that is installed in a vehicle as a drive source. [Background technology]

[0002] There is a geared motor in which the motor and reduction gear are integrated (for example, Patent Document 1). In a geared motor, the motor output shaft and the gear shaft protrude from the motor case, and these shafts are gear-connected. Each gear is supported by bearings on both axial sides. A driven body is connected to the axial outer side of the gear shaft. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 07-274436 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, when a geared motor is used as a drive source for a saddle-type vehicle such as a motorcycle, a rotating body such as a sprocket is provided on the axially outer end of the gear shaft, and a power transmission member such as a chain is stretched between the rotating body provided on the axle of the rear wheel. In this case, two bearings, one for the motor and one for the gear, and a reduction gear are disposed between the power transmission member and the motor case, so the distance between the outer end face of the motor case and the power transmission member becomes large.

[0005] An object of the present invention is to provide a geared motor for a vehicle that enables the vehicle width size to be made compact. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the motor of the present invention is a motor mounted as a driving source for a vehicle, and comprises a gear shaft protruding in the axial direction, which is the direction in which an output shaft extends from a motor case, an inner bearing provided on the axially inner side of the gear shaft closest to the motor case, a driven gear provided on the gear shaft axially outward of the inner bearing, a rotating body provided on the gear shaft axially outward of the driven gear and to which a power transmission member that transmits power to wheels is connected, and an outer bearing provided on the gear shaft axially outward of the rotating body.

[0007] According to this configuration, since the inner bearing and the driven gear are disposed between the power transmission member and the motor case, the distance between the outer end surface of the motor case and the power transmission member is smaller than when two bearings and a driven gear are disposed. This allows the axial dimension of the motor to be reduced. Also, since the rotating body connected to the power transmission member is supported at both ends by the inner and outer bearings, the load on the bearings can be reduced compared to when the rotating body is supported at one end by the inner bearing. This allows, for example, the outer bearing to be made smaller.

[0008] In the present invention, the inner bearing may be set to be smaller than the outer bearing. With this configuration, the inner bearing is small, making the vehicle more compact in the width direction. Also, the outer bearing is large, making it possible to stably support the load.

[0009] In the present invention, a cover body may be further provided for covering the rotor from the axially outer side, and the outer bearing may be supported by the cover body. With this configuration, it is not necessary to provide a separate member for supporting the outer bearing, and an increase in the number of parts can be prevented.

[0010] In this case, the cover body may be attached to the motor case. With this configuration, it is easier to eliminate installation errors compared to attaching the cover body to the vehicle body. Also, an assembly is formed that includes the motor and the cover body, which makes it easy to attach the assembly to the vehicle body.

[0011] The present invention may further include an inner plate that supports the inner bearing and is fixed to the motor case, an outer plate that is fixed to the inner plate from the axial outside to form a gear space between the inner plate, and a support member that supports the outer bearing and is fixed to the outer plate from the axial outside to form a rotor space between the outer plate. According to this configuration, the rotor and the power transmission member can be easily connected by removing the support member. Also, both ends of the gear shaft can be supported by attaching the support member. In this way, it is possible to achieve both ease of connection between the rotor and the power transmission member and improvement of the support rigidity of the gear shaft.

[0012] A saddle-type vehicle of the present invention includes the motor of the present invention, a swing arm that supports a rear wheel so as to be swingable about a pivot shaft relative to a body frame, and a power transmission member that transmits power of the motor to the rear wheel, the motor having a motor shaft and a gear shaft that extend in a vehicle width direction, the gear shaft being disposed closer to the pivot shaft than the motor shaft. In this case, the gear shaft may be disposed above a straight line connecting the pivot shaft and the motor shaft in a side view.

[0013] With this configuration, the motor shaft is separated from the pivot shaft, improving the mountability of other components around the pivot shaft, and by bringing the pivot shaft closer to the gear shaft, the effects of relative displacement of the power transmission member with respect to the swing arm can be suppressed.

[0014] In the saddle-ride type vehicle of the present invention, a swing arm bracket that supports the swing arm may be provided on the body frame, and the motor may be fixed to the swing arm bracket. With this configuration, since the motor and the swing arm are supported by the swing arm bracket, it is possible to prevent misalignment between the gear shaft and the pivot shaft of the swing arm.

[0015] In this case, the motor may have a drive gear provided on the motor shaft, a driven gear provided on the gear shaft, and a gear housing portion in which the drive gear and the driven gear are housed, and a portion of the motor that is connected to the swing arm bracket may be located axially inside the gear housing portion. With this configuration, interference between the gear housing portion and the connecting portion can be prevented.

[0016] Another saddle-type vehicle of the present invention includes a motor as a drive source, a swing arm that supports a rear wheel so that it can swing freely around a pivot axis relative to a body frame, and a power transmission member that transmits the power of the motor to the rear wheel, wherein the motor has a motor shaft and a gear shaft extending in the vehicle width direction, and the gear shaft is positioned closer to the pivot axis than the motor shaft.

[0017] With this configuration, the motor shaft is separated from the pivot shaft, improving the mountability of other components around the pivot shaft, and by bringing the pivot shaft closer to the gear shaft, the effects of relative displacement of the power transmission member with respect to the swing arm can be suppressed. Effect of the Invention

[0018] According to the motor of the present invention, the distance between the outer end face of the motor case and the power transmission member is reduced, making it possible to make the motor smaller. Also, since the rotating body connected to the power transmission member is supported on both sides by the inner and outer bearings, the outer bearing can be made smaller than when it is supported on one side by the outer bearing. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a side view showing a motorcycle, which is one type of vehicle equipped with a motor according to a first embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a perspective view of the motor as viewed obliquely from below and obliquely from the front. [Figure 4] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a side view showing a motorcycle, which is a type of vehicle equipped with a device according to a first embodiment of the present invention. In the following description, "front" and "rear" refer to the front and rear in the traveling direction of the vehicle. Also, "left" and "right" refer to the left and right as seen by a driver riding in the vehicle.

[0021] The body frame FR of the motorcycle of this embodiment has a main frame 1 that forms a front half, and a rear frame 2 that forms a rear half. The main frame 1 extends diagonally downward and rearward from a head pipe 4 at its front end, and then curves downward and extends in the vertical direction. The rear frame 2 extends rearward from the rear of the main frame 1. A front fork 6 is supported by the head pipe 4. A front wheel 8 is supported on the lower end of the front fork 6, and a handlebar 10 is attached to the upper end of the front fork 6.

[0022] A pair of left and right swing arm brackets 12 are provided at the rear end of the main frame 1. A swing arm 14 is supported by the swing arm brackets 12 so as to be able to swing freely about a pivot shaft 15 at the front end. A rear wheel 16 is attached to the rear end of the swing arm 14. In other words, the swing arm 14 supports the rear wheel 16 so as to be able to swing freely with respect to the vehicle body frame FR.

[0023] A motor 20 serving as a drive source is disposed below the main frame 1 and in front of the swing arm bracket 12, and is supported by the vehicle body frame FR. In detail, the motor 20 is fixed to the swing arm bracket 12. A support structure for the motor 20 will be described later. Power of the motor 20 is transmitted to the rear wheel 16 via a power transmission member 18 to drive the rear wheel 16. That is, in this embodiment, the rear wheel 16 is a drive wheel. In this embodiment, a drive chain is used as the power transmission member 18, but the power transmission member 18 is not limited thereto, and may be, for example, a timing belt or a drive shaft.

[0024] The battery is located above and in front of the motor 20. 21 are arranged and supported by the main frame 1. In addition, a seat 24 on which an operator sits is attached to the rear frame 2.

[0025] 2, the motor 20 of this embodiment is a geared motor having an output shaft 22, which is a motor shaft, and a gear shaft 24 that is gear-connected to the output shaft 22. That is, the rotation of the output shaft 22 is decelerated and output from the gear shaft 24. In detail, a drive gear 26 provided on the output shaft 22 and a driven gear 28 provided on the gear shaft 24 are connected to each other, and the rotation of the output shaft 22 is decelerated.

[0026] Furthermore, a rotating body 30 to which the power transmission member 18 is connected is provided on the gear shaft 24. In this embodiment, a sprocket is used as the rotating body 30. As shown in Fig. 1, the power transmission member 18 is hung on this rotating body 30 and a wheel-side rotating body 32 provided on the rear wheel 16. In this way, the power of the motor 20 is transmitted to the driving wheel 16. The rotating bodies 30, 32 are not limited to sprockets and may be, for example, pulleys.

[0027] The rotating body 30 is covered by a cover body 34 from the outside in the vehicle width direction. The cover body 34 in this embodiment is a chain cover 34 that covers the entire rotating body 30 and the front end of the power transmission member 18 from the outside in the vehicle width direction. The chain cover 34 is made of, for example, metal. The chain cover 34 prevents the rotating body 30 and the power transmission member 18 from contacting external objects. However, the cover body 34 is not limited to the chain cover 34. In this embodiment, the cover body 34 is detachably attached to the motor 20. In detail, the cover body 34 is detachably attached to the outer surface of the motor 20 by a plurality of bolts 35 (FIG. 1) arranged at intervals in the circumferential direction. The bolts 35 are also arranged in front of the gear shaft 24 and between the upper and lower power transmission members 18. Note that the cover body 34 is omitted in FIG. 2.

[0028] As shown in Fig. 1, the gear shaft 24 is disposed closer to the pivot shaft 15 than the motor shaft 22. In detail, the gear shaft 24 is disposed above a straight line L1 connecting the pivot shaft 15 and the motor shaft 22 in a side view. That is, the output shaft 22 is located forward and below the gear shaft 24 in a side view. Also, an oil gauge G may be provided forward and below the output shaft 22 in a side view. This allows the gear region and the oil region in the motor 20 to be separated.

[0029] 3, the motor 20 has a motor case 36 that rotatably supports the output shaft 22 and the gear shaft 24. In this embodiment, the shaft centers 22a, 24a of the output shaft 22 and the gear shaft 24 extend in the vehicle width direction (left-right direction). The gear shaft 24 protrudes from the motor case 36 in the direction of the shaft center 22a of the output shaft 22, i.e., in the vehicle width direction.

[0030] An input / output port 38 for electric power of the motor 20 is disposed on the opposite side of the motor case 36 to the power transmission member 18. In this embodiment, the power transmission member 18 is disposed on the left side of the motor case 36, and the input / output port 38 is provided in the upper part of the motor case 36 near the right side.

[0031] 4, the motor case 36 has a case body 40 and a case lid 42 that is detachably attached to the case body 40. The case body 40 has an opening on one side in the axial direction, which is the left side in this embodiment, and this opening is closed by the case lid 42. The case lid 42 is fixed to the case body 40 by a plurality of bolts 45.

[0032] The motor case 36 further has a gear case 44. The gear case 44 is fixed to the case cover 42 from the outside in the axial direction by a plurality of bolts 55. As a result, a gear space SP1 is formed between the case cover 42 and the gear case 44. The drive gear 26 and the driven gear 28 are disposed in this gear space SP1.

[0033] The cover body 34 is fixed to the outer end surface of the gear case 44 in the vehicle width direction. In detail, the cover body 34 is detachably attached to the gear case 44 from the axially outer side by a plurality of bolts 65. As a result, a rotor space SP2 is formed between the cover body 34 and the gear case 44. The rotor 30 is disposed in this rotor space SP2. In FIG. 3, the cover body 34, case lid body 42, and gear case 44 are depicted by two-dot chain lines.

[0034] An inner bearing 46 is provided on the gear shaft 24 of the motor 20, on the axially inner side closest to the motor case 36. The driven gear 28 is provided on the gear shaft 24, on the axially outer side of the inner bearing 46. In other words, the inner bearing 46 is provided between the motor case 36 and the driven gear 28.

[0035] The rotating body 30 is provided on the axially outer side of the driven gear 28 on the gear shaft 24. An outer bearing 48 is provided at the axially outer end of the gear shaft 24. The outer bearing 48 is provided on the axially outer side of the rotating body 30. The rotating body 30 to which the power transmission member 18 is connected is provided between the inner bearing 46 and the outer bearing 48. That is, on the gear shaft 24, the inner bearing 46, the driven gear 28, the rotating body 30, and the outer bearing 48 are provided in this order from the axially inner side. The inner bearing 46 and the outer bearing 48 are, for example, rolling bearings.

[0036] The outer bearing 48 is set to have a larger load capacity than the inner bearing 46. A large load from the rear wheel 16 is applied to the outer bearing 48 via the power transmission member 18, but this load can be supported by this configuration. In the present embodiment, the outer bearing 48 is set to be larger than the inner bearing 46. Specifically, the outer bearing 48 is set to have a larger axial dimension than the inner bearing 46 (Li < Lo). Also, the outer bearing 48 is set to have a larger rolling element pitch circle diameter than the inner bearing 46 (Di < Do). That is, the inner bearing 46 is set to be smaller than the outer bearing 48.

[0037] As shown in FIG. 4, the inner bearing 46 is supported by the case lid 42. That is, the case lid 42 supports the inner bearing 46 and constitutes an inner plate fixed to the case body 40. Specifically, in the motor case 36, a bearing housing space for housing the inner bearing 46 is formed. The bearing housing space is formed, for example, by an annular protruding wall protruding from the motor case 36. Also, the gear case 44 is fixed to the inner plate 42 from the axially outer side to constitute an outer plate that forms a gear space SP1 between the inner plates 42. In the present embodiment, the motor shaft 22 is also rotatably supported by the case lid 42 (inner plate).

[0038] The outer bearing 48 is supported by the cover body 34. In other words, the cover body 34 constitutes a support member that supports the outer bearing 48 and is fixed to the outer plate 44 from the outside in the axial direction to form a rotating body space SP2 between itself and the outer plate 44. In other words, a bearing accommodating space that accommodates the outer bearing 48 is formed in the cover body 34. The bearing accommodating space is formed, for example, by a recess that recesses outward from the cover body 34. However, the outer bearing 48 may be supported by a member other than the cover body 34, for example, a chain guide that guides the power transmission member 18.

[0039] Next, the support structure of the motor 20 will be described. As shown in Fig. 3, a cylindrical lower boss portion 52 is formed on the lower surface of the case body 40 of the motor case 36. Fig. 3 is a perspective view of the motor 20 as viewed diagonally from below and ahead. In this embodiment, two lower boss portions 52 are provided side by side in the axial direction of the motor 20, i.e., in the vehicle width direction. However, the number of lower boss portions 52 is not limited to this. In this way, the lower boss portion 52, which is the portion of the motor 20 that is connected to the vehicle body, is located axially inside the gear space SP1, which is the gear housing portion.

[0040] 2, a cylindrical upper boss portion 54 is formed on the top surface of the motor case 36. In this embodiment, two upper boss portions 54 are also provided side by side in the axial direction of the motor 20. However, the number of upper boss portions 54 is not limited to this.

[0041] The motor 20 is fixed to the swing arm bracket 12 via a motor bracket 56. The motor bracket 56 in this embodiment has a shape that is long in the vertical direction in a side view. An upper mounting portion 58 is formed at a position corresponding to the upper boss portion 54 at the upper end of the motor bracket 56. Meanwhile, a lower mounting portion 60 is formed at a position corresponding to the lower boss portion 52 at the lower end of the motor bracket 56. The upper mounting portion 58 and the lower mounting portion 60 are, for example, cylindrical with a bottom and screw holes 58a, 60a formed therein.

[0042] A fastening member 62 such as a bolt is inserted into the hollow hole 54a of the upper boss portion 54 of the motor 20 from the front of the vehicle body and tightened into the screw hole 58a of the upper mounting portion 58 of the motor bracket 56. Similarly, a fastening member 64 such as a bolt is inserted into the hollow hole 52a (FIG. 3) of the lower boss portion 52 of the motor 20 from the front of the vehicle body and tightened into the screw hole 60a of the lower mounting portion 60 of the motor bracket 56. In this manner, the motor 20 and the motor bracket 56 are integrally connected.

[0043] A first supported portion 66 is formed in the vertical middle portion of the motor bracket 56. The first supported portion 66 has a cylindrical portion having an insertion hole 66a extending in the vehicle width direction. A second supported portion 68 is formed at the lower end portion of the motor bracket 56. The second supported portion 68 protrudes downward from the lower end portion of the motor bracket 56 and has an insertion hole 68a extending in the vehicle width direction.

[0044] With the motor bracket 56 disposed between the left and right swing arm brackets 12, the pivot shaft 15 shown in FIG. 1 is fitted into the insertion hole 66a of the first supported portion 66. As a result, the first supported portion 66 of the motor bracket 56 is supported by the swing arm bracket 12.

[0045] Further, a second supported portion 68 at the lower part of the motor bracket 56 is connected to the swing arm bracket 12 with a bolt. In this embodiment, the second supported portion 68 is connected to the swing arm bracket 12 via a stay 69. In detail, a bolt 70 is inserted into an insertion hole 68a (FIG. 2) of the second supported portion 68 from the outer side in the vehicle width direction, and is fastened to a screw hole provided in the stay 69. The screw hole is, for example, a welded nut. The stay 69 is joined, for example, by welding, to a cross member that connects the left and right swing arm brackets 12. As described above, the motor 20 is supported on the swing arm bracket 12 via the motor bracket 56.

[0046] According to the above configuration, as shown in Fig. 3, the inner bearing 46 and the driven gear 28 are disposed between the power transmission member 18 and the motor case 36, so the distance between the outer end surface of the motor case 36 and the power transmission member 18 is smaller than when two bearings and a driven gear are disposed. This allows the axial dimension of the motor 20 to be reduced. Also, since the rotating body 30 connected to the power transmission member 18 is supported at both ends by the inner and outer bearings 46, 48, the outer bearing 48 can be made smaller in size than when it is supported at one end by the outer bearing.

[0047] The outer bearing 48 is set to be larger than the inner bearing 46. A large radial load is applied to the outer bearing 48 from the rear wheel 16 via the power transmission member 18. According to the above-mentioned configuration, such a large radial load can be stably supported.

[0048] The outer bearing 48 is supported by the cover body 34. This eliminates the need to provide a separate member for supporting the outer bearing 48, making it possible to prevent an increase in the number of parts.

[0049] The cover body 34 is attached to the motor case 36. This makes it easier to eliminate installation errors compared to attaching the cover body to the vehicle frame FR (Fig. 1). Also, an assembly is formed including the motor 20 and the cover body 34, which makes it easy to attach to the vehicle body.

[0050] As shown in Fig. 4, the inner bearing 46 is rotatably supported by the case cover 42, and the case cover 42 is detachably attached to the motor case 36. The gear case 44 is detachably attached to the case cover 42, forming a gear space SP1. Furthermore, the outer bearing 48 is rotatably supported by the cover 34, and the cover 34 is detachably attached to the gear case 44. This makes it easy to connect and inspect the rotating body 30 and the power transmission member 18 by removing the cover 34. Furthermore, by supporting the outer bearing 48 on the cover 34, both ends of the rotating body 30 can be supported.

[0051] 1, the gear shaft 24 is disposed closer to the pivot shaft 15 than the motor shaft 22. This allows the motor shaft 22 to be separated from the pivot shaft 15, improving the mountability of other components around the pivot shaft 15, and also allows the pivot shaft 15 and the gear shaft 24 to be closer to each other, reducing the effect of relative displacement of the power transmission member 18 with respect to the swing arm 14.

[0052] The motor 20 is fixed to the swing arm bracket 12. As a result, both the motor 20 and the swing arm 14 are supported by the swing arm bracket 12, so that misalignment between the gear shaft 24 and the pivot shaft 15 of the swing arm 14 can be prevented.

[0053] 3, the boss portion 52, which is a portion of the motor 20 that is connected to the swing arm bracket 12, is located axially inside the gear space SP1, which is a gear accommodating portion. This makes it possible to prevent interference between the gear space SP1 and the boss portion 52.

[0054] The present invention is not limited to the above-described embodiments, and various additions, modifications, and deletions are possible without departing from the scope of the present invention. For example, in the above-described embodiments, an example in which the geared motor of the present invention is applied to a motorcycle has been described, but the geared motor of the present invention can also be applied to saddle-type vehicles other than motorcycles, such as three-wheeled vehicles and four-wheeled buggies. Therefore, such vehicles are also included in the scope of the present invention. [Explanation of symbols]

[0055] 12 Swingarm bracket 14 Swingarm 15 Pivot Axis 16 Rear wheel (wheel) 18 Power transmission components 20 Motor (drive source) 22 Output shaft (motor shaft) 24 Gear shaft 26 Drive Gear 28 Driven gear 30 Rotating Body 34 Cover body (support member) 36 Motor case 42 Case cover (inner plate) 44 Gear case (outer plate) 46 Inner bearing 48 Outer Bearing FR body frame SP1 Gear space (gear storage area) SP2 Space of revolution

Claims

1. A motor mounted as a drive source of a vehicle, a gear shaft protruding in an axial direction, which is a direction in which the output shaft extends from the motor case; an inner bearing provided on the gear shaft at an axially inner side closest to the motor case; a driven gear provided on the gear shaft axially outside the inner bearing; a rotating body provided on the gear shaft axially outward of the driven gear, the rotating body being connected to a power transmission member that transmits power to wheels; an outer bearing provided on the gear shaft axially outside of the rotating body; a gear case fixed to the motor case from an outer side in an axial direction, the gear case defining a gear space in which the driven gear is disposed between the gear case and the motor case; a cover body fixed to an axially outer end surface of the gear case and covering the rotating body from the axially outer side, The power transmission member is hung between the rotating body and a wheel-side rotating body provided on the wheel, The rotating body is disposed axially outside the gear space, The motor, wherein the outer bearing is supported by the cover body.

2. 2. The motor of claim 1, wherein said inner bearing is smaller than said outer bearing.

3. A motor as described in claim 1 or 2, wherein an opening through which the power transmission member passes is formed between the gear case and the cover body.

4. 4. The motor according to claim 3, wherein the cover body is attached to the motor case.

5. 5. The geared motor according to claim 1, further comprising an inner plate that supports the inner bearing and is fixed to the motor case; an outer plate that is fixed to the inner plate from an axially outer side to form a gear space between the inner plate and the outer plate, The cover body is fixed to the outer plate from the outside in the axial direction to form a rotating body space between the outer plate and the cover body.

6. A motor according to claim 1; a swing arm supporting a rear wheel so as to be swingable about a pivot shaft relative to a body frame; a power transmission member that transmits the power of the motor to the rear wheel, The motor has a motor shaft and a gear shaft extending in a vehicle width direction, A saddle-type vehicle, wherein the gear shaft is disposed closer to the pivot shaft than the motor shaft.

7. 7. The saddle-ride type vehicle according to claim 6, wherein the gear shaft is disposed above a straight line connecting the pivot shaft and the motor shaft in a side view.

8. 8. The saddle-ride type vehicle according to claim 6, wherein the body frame is provided with a swing arm bracket that supports the swing arm, A saddle-type vehicle, wherein the motor is fixed to the swing arm bracket.

9. 9. The saddle-ride type vehicle according to claim 8, wherein the motor has a drive gear provided on the motor shaft, a driven gear provided on the gear shaft, and a gear housing portion in which the drive gear and the driven gear are housed, A saddle-type vehicle, wherein a portion of the motor that is connected to the swing arm bracket is located axially inside the gear housing portion.

10. A motor as a drive source; a swing arm supporting a rear wheel so as to be swingable about a pivot shaft relative to a body frame; a power transmission member that transmits the power of the motor to the rear wheel, The motor is a gear shaft protruding from the motor case in an axial direction, which is a vehicle width direction in which the motor shaft extends; an inner bearing provided on the gear shaft at an axially inner side closest to the motor case; a driven gear provided on the gear shaft axially outside the inner bearing; a rotor provided on the gear shaft axially outside the driven gear, the rotor being connected to the power transmission member; an outer bearing provided on the gear shaft axially outside of the rotating body; a support member disposed axially outward of the rotor and covering the rotor from the axially outward side, The gear shaft is disposed closer to the pivot shaft than the motor shaft, The power transmission member is hung between the rotating body and a wheel-side rotating body provided on the rear wheel, A saddle-type vehicle, wherein the outer bearing is supported by the support member.

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