CN114514167A

CN114514167A - Electric mobile equipment

Info

Publication number: CN114514167A
Application number: CN202080066635.5A
Authority: CN
Inventors: 平田泰大; 内野刚史; 杉本俊太郎
Original assignee: Whill Inc
Current assignee: Whill Inc
Priority date: 2019-12-27
Filing date: 2020-12-22
Publication date: 2022-05-17
Anticipated expiration: 2040-12-22
Also published as: JP6980948B2; JPWO2021132198A1; WO2021132198A1; CN114514167B

Abstract

The invention provides an electric mobile device. The electric mobile device is provided with: a traveling apparatus main body (30) having a front wheel-side vehicle body (110) and a rear wheel-side vehicle body (120); a seat unit (40) supported by the mobile device body (30); a Battery (BA) detachably attached to the rear wheel-side vehicle body (120); and a coupling lock member (127) that is movably attached to the front wheel-side vehicle body (110) or the rear wheel-side vehicle body (120), and that, when the coupling lock member is disposed at the lock position, maintains the coupling between the front wheel-side vehicle body (110) and the rear wheel-side vehicle body (120), and the Battery (BA) attached to the rear wheel-side vehicle body (120) prevents the movement of the coupling lock member (127) away from the lock position.

Description

Electric mobile equipment

Technical Field

The present invention relates to a motorized mobile device.

Background

As such an electric moving machine, a moving machine main body including a detachable seat unit and a mounted seat unit is known, and the moving machine main body includes a front wheel side vehicle body and a rear wheel side vehicle body detachably coupled to the front wheel side vehicle body. For example, refer to patent document 1.

Documents of the prior art

Patent document 1: japanese patent laid-open publication No. 2018-154202

The electric traveling equipment is easily carried and loaded on the vehicle body by being divided into the front wheel side vehicle body, the rear wheel side vehicle body, and the seat unit. In order to facilitate transportation and loading of the vehicle body, the vehicle body such as a front wheel side vehicle body and a rear wheel side vehicle body is required to be light in weight. The electric mobile device is used by the vehicle occupant every day, and the place where the electric mobile device travels differs depending on the purpose of use of the vehicle occupant. Electric mobile devices are also often driven on terraced or uneven ground.

In the case where the front wheel side vehicle body and the rear wheel side vehicle body are connected as described above, if the connection is not firm, safety of the electric traveling equipment during traveling is often not ensured.

In view of the above, it is desirable to realize an electric traveling apparatus that ensures no travel if a front-wheel-side vehicle body and a rear-wheel-side vehicle body are not connected.

Disclosure of Invention

One aspect of the present invention provides an electric mobile device including: a traveling apparatus main body having a front-wheel-side vehicle body and a rear-wheel-side vehicle body; a seat unit supported by the mobile device main body; a battery detachably attached to the rear wheel-side vehicle body; and a coupling lock member movably attached to the front wheel-side vehicle body or the rear wheel-side vehicle body, wherein when the coupling lock member is disposed at a lock position, the coupling between the front wheel-side vehicle body and the rear wheel-side vehicle body is maintained, and the battery attached to the rear wheel-side vehicle body blocks the movement of the coupling lock member away from the lock position.

Drawings

Fig. 1 is a front perspective view of an electric mobile device according to an embodiment of the present invention.

Fig. 2 is a rear perspective view of the electric mobile device of the present embodiment.

Fig. 3 is a bottom view of the electric mobile device of the present embodiment.

Fig. 4 is a longitudinal sectional view of the electric mobile device of the present embodiment.

Fig. 5 is a longitudinal sectional view of the electric mobile device of the present embodiment.

Fig. 6 is a front perspective view of the rear wheel-side vehicle body with the cover of the electric traveling apparatus of the present embodiment removed.

Fig. 7 is a rear perspective view of the rear wheel-side vehicle body with the cover of the electric traveling apparatus of the present embodiment removed.

Fig. 8 is a vertical cross-sectional view of the electric mobile device according to the present embodiment with a cover partially removed.

Fig. 9 is a block diagram of the electric mobile device of the present embodiment.

Fig. 10 is a vertical sectional view of the electric mobile device according to the present embodiment with a cover partially removed.

Fig. 11 is an enlarged view of a coupling portion of the electric moving device according to the present embodiment.

Fig. 12 is a front perspective view of the front wheel-side vehicle body with a part of the cover of the electric traveling apparatus according to the present embodiment removed.

Fig. 13 is a perspective view of a main portion of a rear wheel-side vehicle body with a cover of the electric traveling apparatus according to the present embodiment removed.

Fig. 14 is a cross-sectional view taken along line XIV-XIV in fig. 13.

Fig. 15 is a front perspective view of the battery of the electric mobile device according to the present embodiment.

Fig. 16 is a rear perspective view of the battery of the electric mobile device according to the present embodiment.

Fig. 17 is a schematic cross-sectional view of a structure in which a battery of the electric traveling apparatus according to the present embodiment is attached to a rear wheel side vehicle body.

Fig. 18 is a schematic cross-sectional view of a structure in which a battery of the electric traveling apparatus according to the present embodiment is attached to a rear wheel side vehicle body.

Fig. 19 is a longitudinal sectional view of a main part of the electric mobile device of the present embodiment.

Fig. 20 is a longitudinal sectional view of a main part of the electric mobile device of the present embodiment.

Fig. 21 is a longitudinal sectional view of a main part of a modification of the electric mobile device of the present embodiment.

Fig. 22 is a longitudinal sectional view of a main part of a modification of the electric mobile device of the present embodiment.

Fig. 23 is a longitudinal sectional view of a main part of another modification of the electric mobile device according to the present embodiment.

Fig. 24 is a longitudinal sectional view of a main part of another modification of the electric mobile device according to the present embodiment.

Detailed Description

Hereinafter, an electric mobile device according to an embodiment of the present invention will be described with reference to the drawings.

As shown in fig. 1 to 3, the electric moving device includes a moving device body 30, and the moving device body 30 includes a pair of front wheels 10, a pair of rear wheels 20, and a vehicle body 31 supported by the front wheels 10 and the rear wheels 20. Further, the motorized mobile device includes: a seat unit 40 detachably attached to the mobile device body 30, and a motor 50 (fig. 6) attached to the mobile device body 30 and driving at least one of the pair of front wheels 10 and the pair of rear wheels 20. The seat unit 40 of the electric moving device of the present embodiment is provided for one person to sit on. In the following description, the vehicle front-rear direction corresponds to the front-rear direction, and the vehicle width direction corresponds to the width direction. The vehicle front-rear direction coincides with the front-rear direction of the mobile device body 30 or the vehicle body 31, and the vehicle width direction coincides with the width direction of the mobile device body 30 or the vehicle body 31.

In the present embodiment, as shown in fig. 6 and 7, the pair of rear wheels 20 are connected to the output shaft 51 of the motor 50, respectively, and the two rear wheels 20 can be driven by the motors 50, respectively. On the other hand, the driving force of the motor 50 may be transmitted to the pair of front wheels 10 via a power transmission member such as a belt, a gear, a rotating shaft, and an axle of the rear wheel 20.

The axle 11 of each front wheel 10 is supported by the vehicle body 31 via a front wheel suspension. Each front wheel 10 has a ground contact surface formed by a plurality of

rollers

13 and 14 arranged in the circumferential direction thereof.

More specifically, each front wheel 10 includes a hub 15 attached to the axle, and a plurality of roller support shafts arranged in the circumferential direction of the hub 15 and supported by the hub 15, and the plurality of

rollers

13 and 14 are rotatably supported by the roller support shafts, respectively.

With this configuration, the

rollers

13 and 14 are rotatable about axes extending in a direction intersecting with the radial direction of the axle, and the front wheels 10 are omni-directional wheels that are omni-directional with respect to the ground contact surface.

As shown in fig. 5, the outer circumferential surfaces of the

rollers

13 and 14 are formed of outer

circumferential members

13a and 14a having rubber elasticity such as rubber or silicon, and a plurality of

grooves

13b and 14b extending in the circumferential direction are formed in the outer

circumferential members

13a and 14a, respectively. The outer

peripheral members

13a and 14a are formed around a metal core member, for example.

In the present embodiment, each rear wheel 20 includes: an axle such as the output shaft 51 of the motor 50; a hub 22 attached to the axle; and an outer peripheral member 23 provided on the outer peripheral side of the hub 22 and having an outer peripheral surface formed of a rubber-elastic material such as rubber or silicon, an omni-directional wheel may be used similarly to the front wheel 10. In this case, each front wheel 10 may be the same wheel as the rear wheel 20. Further, each front wheel 10 may be the same wheel as the rear wheel 20, and a means for changing the steering angle of the front wheel 10 and/or the rear wheel 20 may be provided.

In the present embodiment, the rear wheel 20 is not a pneumatic tire, but a solid tire formed of a material having rubber elasticity up to the inside. The rear wheel 20 may be a pneumatic tire.

The traveling apparatus main body 30 has a front wheel-side vehicle body 110 and a rear wheel-side vehicle body 120 detachably coupled to the front wheel-side vehicle body 110. The front wheel-side vehicle body 110 has a front wheel-side frame (vehicle body frame) 111, and the front wheel-side frame 111 is formed to extend along the ground, and the axle of the front wheel 10 is attached to the front wheel-side frame 111 via a front wheel suspension. The front wheel-side vehicle body 110 includes a front wheel-side cover 110a, and the front wheel-side cover 110a is provided so as to cover at least a part of the front wheel-side frame 111 and is used to protect the front wheel-side frame 111 and to mount a portion of a foot of a rider seated on the seat unit 40, a load mount portion, a fender, and the like.

The front wheel side frame 111 is made of a material suitable for obtaining strength, such as metal, and has a pair of side members 112 extending in the width direction in the front-rear direction, as shown in fig. 3 and 12, for example. As shown in fig. 12, the pair of side members 112 includes a first cross member 113a and a second cross member 113b, which are disposed at a distance from each other in the front-rear direction and extend in the vehicle width direction, respectively, to connect the pair of side members to each other. A first cross member 113a of the plurality of

cross members

113a, 113b is provided at a rear end portion of the pair of side members 112, and a second cross member 113b is disposed at a vehicle front side of the first cross member 113 a.

As shown in fig. 2, 4, and the like, the rear wheel-side vehicle body 120 includes: a rear wheel-side frame (vehicle body frame) 121 on which the seat unit 40 is mounted on the upper end side; and a rear wheel side cover 120a provided so as to cover at least a part of the rear wheel side frame 121 and used for protection of the rear wheel side frame 121, mud blocking, and the like. The vehicle body frame of the traveling apparatus body 30 is formed by the front wheel side frame 111 and the rear wheel side frame 121.

The rear wheel side frame 121 is formed of a material suitable for obtaining strength, such as metal, and includes, for example, as shown in fig. 6: a lower frame 122 having a pair of widthwise side portions 122a extending in the front-rear direction; and a support frame 125 having a lower end fixed to the lower frame 122 and an upper end provided with the seat attachment member 32 for supporting the seat unit 40. In the present embodiment, lower frame 122 and support frame 125 are made of aluminum, and lower frame 122 and support frame 125 are integrally formed.

As shown in fig. 2 and the like, a pair of widthwise falling prevention members (protruding members) 126 are provided on the rear wheel side frame 121 to prevent the electric traveling device from falling rearward of the vehicle.

Further, the seat support portion 33 for supporting the seat unit 40 is formed on the vehicle body 31 by the support portion frame 125 and the portion of the rear wheel side cover 120a covering the support portion frame 125. The support frame 125 is inclined from the lower end side toward the upper end side toward the vehicle front, and therefore the seat support 33 is also inclined from the lower end side toward the upper end side toward the vehicle front. Since the support portion frame 125 has such a shape, the center of gravity of the rear wheel-side vehicle body 120 is disposed in front of the vehicle with respect to the rotation axis 20a (fig. 10a) of the rear wheel 20 to a clearly known degree.

As shown in fig. 2, 4, 5, and the like, a rechargeable battery BA is detachably attached to the seat support portion 33. The front surface 33a and the rear surface 33b of the seat support portion 33 are inclined from the lower end side toward the upper end side toward the vehicle front side, and an opening portion of a storage space 33d (fig. 7) for storing the battery BA is provided in the rear surface 33 b. Further, a control unit 60, which will be described later, is disposed in the rear wheel side vehicle body 120.

As shown in fig. 6 and the like, the seat attachment member 32 is a member having a length in the vertical direction, and a plurality of positioning holes 32a are provided at intervals in the vertical direction. A cylindrical portion 125a through which the seat attachment member 32 is inserted in the vertical direction is provided on the upper end side of the support frame 125, and a support side hole 125b penetrating in the front-rear direction is provided in the cylindrical portion 125 a.

The seat attachment member 32 is inserted into the cylindrical portion 125a, and the positioning member 32b (fig. 4) is attached to the cylindrical portion 125a so as to be inserted into the support-side hole 125b and the positioning hole 32a by aligning one of the positioning holes 32a with the support-side hole 125 b. Thereby, the height positions of the seat attachment member 32 and the seat unit 40 can be adjusted.

The seat unit 40 has: a seat surface portion 41 on which a passenger sits; a backrest portion 42; a pair of control arms 43 in the vehicle width direction; and a seat cushion frame 44 fixed below the seat surface 41 and detachably attached to the upper end of the seat attachment member 32 of the seat support 33. The seat frame 44 and the seat mounting member 32 may be integrally formed.

An operating portion 43a having an operating lever 43b is provided at one upper end of the right and left control arms 43. The rider can displace the operating lever 43b in the right direction, the left direction, the front direction, and the rear direction.

Signals corresponding to the displacement direction and the displacement amount of the operating lever 43b are sent from the operating portion 43a to a control unit 60 described later, and the motors 50 are driven based on the signals.

A setting unit 43c that can perform various settings related to the electric portable device, such as maximum speed setting, operation mode setting, and lock setting of the electric portable device, is provided at the upper end of one or the other of the right and left control arms 43, and a plurality of operation buttons, a display device, and the like are provided in the setting unit 43 c.

As shown in fig. 9, the control unit 60 includes a motor driver 70 for driving each motor 50 and a control device 80.

The control device 80 includes, for example, a processor 81 having a CPU, a RAM, and the like, a storage device 82 having a nonvolatile memory, a ROM, and the like, and a transmission/reception unit 83. The storage device 82 stores a program for controlling the electric mobile device, and the processor 81 transmits a drive signal for driving each motor 50 to the motor driver 70 based on signals from the operation unit 43a and the setting unit 43c based on the program operation.

Next, a connection structure between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 will be described.

As shown in fig. 6 and 8, a substantially U-shaped first concave portion 121a that opens toward the front of the vehicle is formed in the lower surface of each side portion 122a of the rear wheel side frame 121, and a second concave portion 121b that is disposed in the front of the vehicle with respect to the first concave portion 121a and opens downward is formed. The first concave portion 121a is engaged with the first cross member 113a of the front wheel side frame 111, and the second concave portion 121b is engaged with the second cross member 113b of the front wheel side frame 111.

As shown in fig. 10, after the first cross member 113a is disposed in the pair of first recesses 121a, the rear-wheel-side vehicle body 120 is tilted toward the vehicle front about the rotational axis 20a of the rear wheel 20. Thereby, the second cross member 113b of the front wheel side frame 111 enters the pair of second recesses 121b from below. Thereby, the vertical movement of the first cross member 113a with respect to the rear wheel side frame 121 is restricted by the first concave portion 121 a. Further, the upward movement of the second cross member 113b with respect to the rear wheel side frame 121 is restricted by the second concave portion 121 b. Further, the movement of the 1 st and

second cross members

113a, 113b in the front-rear direction with respect to the rear wheel side frame 121 is restricted by the first and second

concave portions

121a, 121 b. The above-described movements are also restricted by a coupling lock member 127 described later. Thus, the front wheel-side vehicle body 110 is coupled to the rear wheel-side vehicle body 120.

As shown in fig. 8, 11, and the like, a coupling lock member 127 is provided on the rear wheel side frame 121, and the coupling lock member 127 is supported by the rear wheel side frame 121 so as to be swingable about a swing axis 127c extending in the vehicle width direction. In the present embodiment, the coupling lock member 127 is swingably supported by the pair of side portions 122 a. In the present embodiment, the coupling lock member 127 is disposed on the inside in the vehicle width direction with respect to the pair of side portions 122 a. The coupling lock member 127 swings in at least one of the vehicle front-rear direction and the vertical direction, and in the present embodiment, the coupling lock member 127 also swings in the vertical direction when swinging in the vehicle front-rear direction.

The coupling lock member 127 is biased by a biasing member 127d such as a torsion spring, and the lock end 127e moves toward the vehicle rear side by the biasing force. In the present embodiment, the locking end 127e is an end portion of the coupling locking member 127 that is distant from the swing axis 127 c. When the coupling locking member 127 is swung rearward by the urging member 127d, a part of the coupling locking member 127 or a member fixed to the coupling locking member 127 abuts a part of the rear wheel side frame 121, and the locking end 127e is not moved to the vehicle rear side from the abutting position.

When the lock end 127e is moved rearward and disposed at the lock position a shown by a solid line in fig. 11, the vicinity of the lock end 127e of the coupling lock member 127 abuts against the second cross member 113b entering the second recess 121b from below. Therefore, the engagement of the second beam 113b with the second recess 121b is maintained by the coupling lock member 127. That is, the coupling of the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 is maintained by the coupling locking member 127.

In the present embodiment, the connection means a state in which the second cross member 113b is engaged with the second recessed portion 121b, and the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected to each other while being able to travel. That is, such coupling is maintained by the coupling locking member 127.

On the other hand, when the coupling lock member 127 is swung forward and upward in the vehicle and the lock end 127e is disposed at the retracted position B shown in fig. 11, the coupling lock member 127 is not in contact with the second cross member 113B. That is, the connection between the front wheel-side vehicle body 110 and the rear wheel-side vehicle body 120 can be released or released.

As shown in fig. 4 and 5, when battery BA is inserted into storage space 33d from the vehicle rear side, battery connector 200 on the battery BA side is connected to vehicle body connector 300 of rear wheel-side vehicle body 120.

As shown in fig. 4 and 5, battery BA is inserted into storage space 33d from front end FE thereof. Battery BA is inserted into storage space 33d along a wall surface of storage space 33d or a rail. Since the wall surface or the rail is inclined downward toward the vehicle front, battery BA is inserted into storage space 33d in an inclined manner.

In the present embodiment, battery BA is inserted into housing space 33d along the lower wall surface and the side wall surface of housing space 33 d. That is, battery BA is inserted along the lower wall surface and the sidewall surface. In the present embodiment, a direction along the wall surface or the guide rail is referred to as a battery insertion direction.

In the present embodiment, as shown in fig. 15, the side of the battery BA where the holding member 401 is provided is referred to as the rear end RE of the battery BA, and the side of the battery BA that is first inserted into the housing space 33d is referred to as the front end FE of the battery BA. The clamping member 401 is a portion that the driver, operator, service person, or the like holds when carrying the battery BA.

In the present embodiment, as shown in fig. 15, battery connector 200 is provided on the upper surface side of battery BA. More specifically, a step 402 is formed between the upper surface of battery BA on the rear end RE side and the upper surface of battery BA on the front end FE side, and battery connector 200 is attached to step 402. In the present embodiment, the step 402 is a surface substantially perpendicular to the battery insertion direction.

As shown in fig. 14, the battery connector 200 of the step 402 has a cylindrical first connection portion 201 extending in the battery insertion direction, and a plurality of holes 202 provided in the first connection portion 201 and extending in the battery insertion direction.

On the other hand, as shown in fig. 13, 14, and the like, the vehicle body connector 300 includes a cylindrical guide portion 301 extending along the battery insertion direction, and a plurality of pins 302 provided in a space surrounded by the guide portion 301. The plurality of pins 302 extend from a second connection portion 320 described later in the battery insertion direction. When the first connection portion 201 and the second connection portion 320 are connected, the plurality of pins 302 are inserted into the plurality of holes 202, and the battery connector 200 is electrically connected to the vehicle body connector 300.

As shown in fig. 13 and 14, the vehicle body connector 300 includes a connector base 310, a second connecting portion 320, and a pressing member 330. The second connection portion 320 has a guide portion 301, and a plurality of pins 302 protrude from the second connection portion 320 in the battery insertion direction. The connector base 310 supports the lower end of the guide portion 301 and/or the second connection portion 320. The connector base 310 is attached to, for example, the support portion frame 125 of the rear wheel side frame 121 by a plurality of bolts 311.

The connector base 310 and the second connecting portion 320 are mounted to the rear wheel side frame 121 so as to be movable in a direction orthogonal to the battery insertion direction with respect to the rear wheel side frame 121. In the present embodiment, the connector base 310 and the second connecting portion 320 are also movable in the battery insertion direction with respect to the rear wheel side frame 121.

Specifically, as shown in fig. 14, the lower surface of the head 311a of the bolt 311 is not pressed against the connector base 310. In the present embodiment, the seating surface of the bolt 311 is a cylindrical portion protruding from the rear wheel side frame 121, and the axial length of the cylindrical portion is larger than the thickness of the corresponding portion of the connector base 310. Therefore, even if the bolt 311 is tightened, the head 311a of the bolt 311 is not pressed to the connector base 310. By providing the bolt 311 as a stepped bolt, the head 311a of the bolt can be configured not to press against the connector base 310. In the present embodiment, the connector base 310 and the second connection portion 320 are movable by about 0.5mm in the battery insertion direction with respect to the rear wheel side frame 121.

Further, a hole 312 is provided in the connector base 310 at a portion corresponding to the cylindrical portion, and the inner diameter of the hole 312 is larger than the outer diameter of the cylindrical portion by 0.5mm or more, preferably by 1mm or more. Therefore, the connector base 310 and the second connection portion 320 can move in the orthogonal direction by 0.5mm or more, preferably by 1mm or more, with respect to the rear wheel side frame 121. Further, if the amount of movement in the orthogonal direction of the connector base 310 and the second connection portion 320 is 0.2mm or more, the same operational effects as described above can be obtained. However, it is preferable that the amount of movement of the connector base 310 and the second connection portion 320 in the orthogonal direction be 0.5mm or more during setting.

The pressing member 330 is attached to the rear wheel side frame 121 using a plurality of bolts (guide members) 331 so as to be movable in the battery insertion direction with respect to the rear wheel side frame 121.

Specifically, as shown in fig. 14, the bolts 331 are inserted into a plurality of holes 330a provided in the pressing member 330, and each bolt 331 is screwed to the rear wheel side frame 121.

The head 331a of each bolt 331 is not pressed by the pressing member 330, and each bolt 331 extends in the battery insertion direction. Therefore, the pressing member 330 can move in the axial direction of the bolt 331, the moving direction being in accordance with the battery insertion direction.

In the present embodiment, the pressing member 330 can move along the bolt (guide member) 331 by 15mm or more. The same effects as those of the present embodiment can be obtained if the movable distance of the pressing member 330 is 3mm or more, and the movable distance is preferably 5mm or more, more preferably 10mm or more.

A spring 360 is disposed on the outer peripheral side of each bolt 331. More specifically, the corresponding bolt 331 is disposed in each spring 360, and each spring 360 is disposed between the pressing member 330 and the vicinity of the screw portion of the bolt 331 in the rear wheel side frame 121. According to this configuration, the pressing member 330 is biased toward the head 331a of the bolt 331 by the springs 360.

The inner diameter of each hole 330a is smaller than the outer diameter of the head 331a of the bolt 331. Therefore, the upward movement of the pressing member 330 by the springs 360 is restricted by the head 331a, and this position becomes the upper limit position of the pressing member 330.

The downward movement of the pressing member 330 is restricted by the pressing member 330 abutting against the rear wheel side frame 121, the pressing member 330 abutting against a member fixed to the rear wheel side frame 121, the spring 360 being fully compressed, and the like, and this position becomes the lower limit position of the pressing member 330.

In the present embodiment, each bolt 331 is disposed in the sleeve 332. One end surface of the sleeve 332 abuts on the head 331a of the bolt 331, and the other end surface of the sleeve 332 abuts on the rear wheel side frame 121. When the sleeve 332 is provided, the sleeve 332 also functions as a guide member that guides the pressing member 330.

As shown in fig. 13, the pressing member 330 has a central hole 330b, and the connector base 310 and the second connecting portion 320 are disposed in the central hole 330 b.

The pressing member 330 is provided with a plurality of rails 340, and each rail 340 extends along the battery insertion direction. On the other hand, the connector base 310 is provided with a plurality of grooves 350, and each groove 350 extends along the battery insertion direction. Each rail 340 engages with a corresponding groove 350. Accordingly, the pressing member 330 is movable in a direction along the rail 340 with respect to the connector base 310.

In addition, the second connection portion 320 may be provided in the groove 350. Further, the groove 350 may be provided in the pressing member 330, and the rail 340 may be provided in the connector base 310 or the second connecting portion 320.

The posture of the pressing member 330, which is moved in the battery insertion direction against the spring 360 or by the spring 360, is stabilized by the rail 340 and the groove 350. This is advantageous in that the pressing member 330 is smoothly moved in the battery insertion direction. In addition, this structure does not require the pressing member 330 to be smoothly moved in the battery insertion direction and another member to be provided.

In the present embodiment, as shown in fig. 14, the battery connector 200 has an annular recess 203 into which a cylindrical guide 301 is inserted. A chamfer 203a is formed at the entrance of the recess.

When the state shown in fig. 4 is changed to the state shown in fig. 5, that is, when battery BA is inserted into housing space 33d along the wall surface or the guide rail, cylindrical guide portion 301 of vehicle body connector 300 is inserted into annular recess 203 of battery connector 200.

The outer diameter of the guide portion 301 is slightly smaller than the inner diameter of the annular recess 203. Further, the guide portion 301 is movable together with the connector base 310 in a direction orthogonal to the battery insertion direction. Therefore, when battery BA is inserted into housing space 33d along the wall surface, the guide rail, or the like, the position of guide portion 301 is automatically adjusted in the orthogonal direction, and guide portion 301 is smoothly inserted into recess 203.

When guide portion 301 is inserted into recess 203, a plurality of pins 302 are inserted into corresponding holes 202, and battery connector 200 is connected to vehicle body connector 300.

When the battery BA is inserted into the housing space 33d along the wall surface, the guide rail, or the like, for example, the step 402 of the battery BA abuts on the pressing member 330. If the battery BA is inserted further in this state, the urging member 330 is moved toward the lower limit position against the urging force of the spring 360.

Then, when battery BA is inserted to the position where battery connector 200 is connected to vehicle body connector 300, battery BA is mounted on rear wheel-side vehicle body 120 by battery lock member 500.

As shown in fig. 17, battery lock member 500 is a member that is interlocked with button 404 provided on rear end surface 403 of battery BA.

In one example, battery lock member 500 is provided on battery BA so as to be able to protrude from upper wall 405 thereof. Battery lock member 500 is movably supported by a guide member 406 provided on battery BA, and is biased in the protruding direction by a spring 407. The guide member 406 extends in the protruding direction. Further, a portion of push button 404 is formed with an inclined surface 404a inclined downward toward rear end RE of battery BA. On the other hand, battery lock member 500 is provided with an engaging portion 501 that engages inclined surface 404a from below.

With this configuration, when the push button 404 is pushed toward the front end FE of the battery BA, the inclined surface 404a of the push button 404 moves toward the front end FE of the battery BA. Thereby, the battery lock member 500 moves together with the engaging portion 501 toward the battery BA against the urging force of the spring 407 (fig. 18). By this movement of the battery lock member 500, the engagement between the battery BA and the engaged portion 120c of the rear wheel side vehicle body 120 is released, and the battery BA can be detached from the rear wheel side vehicle body 120. The battery BA may be attached to the rear wheel-side vehicle body 120 by using a member other than the battery lock member 500.

When the battery BA is attached to the rear wheel-side vehicle body 120 as described above, a part of the front end FE of the battery BA hinders the movement of the coupling lock member 127 toward the retracted position B. In the present embodiment, the part is a lower surface 408 of battery BA, a protruding portion 408a provided on lower surface 408, and the like (fig. 16). In the present embodiment, the protruding portion 408a extends along the battery insertion direction. Lower surface 408 is a lower surface of the surfaces between front end FE and rear end RE of battery BA.

In the present embodiment, when the battery BA is mounted on the rear wheel-side vehicle body 120, the lower surface 408 or the protruding portion 408a comes into contact with or approaches the upper surface of the coupling lock member 127 (fig. 19). This hinders the movement of the coupling lock member 127 toward the retracted position B, and the front wheel side vehicle 110 and the rear wheel side vehicle 120 cannot be decoupled from each other. The same effect can be obtained even when the lower surface 408 or the protruding portion 408a comes into contact with or approaches the front surface of the coupling lock member 127.

On the other hand, as shown in fig. 20, when the battery BA is removed from the rear wheel-side vehicle body 120 by pressing the button 404, the coupling lock member 127 can be moved toward the retracted position B.

In the present embodiment, the movement of the coupling lock member 127 toward the retracted position B is directly hindered by a portion of the battery BA attached to the rear wheel-side vehicle body 120. On the other hand, as shown in fig. 21, the movement of the coupling lock member 127 toward the retracted position B may be hindered by a lock member 600 attached to the front wheel side vehicle body 110 or the rear wheel side vehicle body 120 so as to be movable in a predetermined direction. In this case, the movement of the lock member 600 in the predetermined direction is hindered by a part of the battery BA attached to the rear wheel-side vehicle body 120. That is, the movement of the coupling lock member 127 toward the retracted position B is indirectly hindered by a portion of the battery BA attached to the rear wheel-side vehicle body 120.

In fig. 21, the lock member 600 is attached to the front-wheel-side vehicle body 110 so as to be movable in the front-rear direction (predetermined direction), and the lock member 600 is biased toward the vehicle rear side by a spring 610. A part of the lock member 600 moved toward the vehicle rear by the spring 610 abuts or approaches an upper surface or a front surface of the coupling lock member 127. This hinders the movement of the coupling lock member 127 to the retracted position B.

In a state where the lock member 600 is moved rearward by the spring 610, a part of the battery BA attached to the rear wheel-side vehicle body 120 abuts against or approaches a surface 601 of the lock member 600 facing the vehicle front. In this state, movement of lock member 600 to the vehicle front side is hindered by a portion of battery BA. That is, the movement of the coupling lock member 127 to the retracted position B is hindered by the battery BA attached to the rear wheel-side vehicle body 120. As shown in fig. 22, when battery BA is removed and lock member 600 is moved forward in the vehicle, coupling lock member 127 can be moved toward retracted position B.

Further, when the part of battery BA abuts against or approaches the convex portion or concave portion of lock member 600, movement of lock member 600 to the vehicle front side is inhibited.

Further, as shown in fig. 23, the lock member 600 may be provided with a lock end 600 a. The lock end 600a has the same function as the lock end 127e, and the lock end 600a contacts the lower end of the second beam 113b in a state where the second beam 113b enters the second recess 121 b. In this case, the lock member 600 functions as a coupling lock member. As shown in fig. 23, an upper locking end contacting the upper end of the second beam 113b may be provided at the locking member 600. As shown in fig. 24, when the battery BA is removed, the lock member 600 can be moved forward of the vehicle, and the coupling between the front-wheel-side vehicle body 110 and the rear-wheel-side vehicle body 120 is released.

Further, the coupling lock member 127 may be supported in the vicinity of the second cross member 113b in the front wheel side frame 111, for example, of the front wheel side vehicle body 110. In this case, the coupling lock member 127 is supported by the pair of side members 112 so as to be swingable about a swing axis extending in the vehicle width direction. Even in this case, when the locking end 127e is disposed below the second cross member 113b by the swinging of the coupling locking member 127 in a state where the second cross member 113b enters the second recess 121b, the coupling of the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 is maintained by the coupling locking member 127.

Further, the coupling lock member 127 may be attached to the front-wheel-side vehicle body 110 or the rear-wheel-side vehicle body 120 so as to be movable in the vehicle front-rear direction, for example. Even in this case, if the locking end 127e is disposed below the second cross member 113b when the coupling locking member 127 is moved rearward in the vehicle, for example, the coupling of the front-wheel side body 110 and the rear-wheel side body 120 is maintained by the coupling locking member 127.

In the above embodiment, the battery BA is detachably attached to the rear wheel-side vehicle body 120. Further, the coupling locking member is movably attached to the rear wheel-side vehicle body 120 or the front wheel-side vehicle body 110, and when the coupling locking member 127 is disposed at the locking position a, the coupling of the front wheel-side vehicle body 110 and the rear wheel-side vehicle body 120 is maintained. Here, in fig. 11, when the coupling locking member 127 moves away from the locking position a toward the retracted position B, the coupling between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 by the coupling locking member 127 is released.

In the above-described embodiment, when the battery BA is mounted on the rear wheel-side vehicle body 120, the operation of separating the coupling lock member 127 from the lock position a is hindered by the battery BA as shown in fig. 5, 19, and the like.

With this configuration, the battery BA cannot be mounted in a state where the front-wheel side vehicle body 110 and the rear-wheel side vehicle body 120 are not coupled by the coupling lock member 127. Therefore, in a state where the front wheel-side vehicle body 110 and the rear wheel-side vehicle body 120 are not coupled, electric power is not supplied from the battery BA to the electric moving equipment. Since the electric traveling equipment is prevented from traveling in a state where the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are not coupled to each other, the safety of the electric traveling equipment can be ensured before traveling. That is, the travel in the state where the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are not completely coupled can be prevented, and the user can know the state where they are not completely coupled.

In the present embodiment, the connection between the front wheel-side vehicle body 110 and the rear wheel-side vehicle body 120 can be released only when the battery BA is removed. Therefore, in the case where a plurality of persons perform the disassembling work, the motor 50 does not move accidentally even if the operation lever 43b is operated accidentally during the disassembling work.

In a state where the battery BA is attached to the rear-wheel-side vehicle body 120 and the electric mobile device is traveling, the front-wheel-side vehicle body 110 and the rear-wheel-side vehicle body 120 cannot be decoupled by the coupling lock member 127. This structure is favorable to ensuring the security of the electric mobile device in driving. In the present embodiment, battery BA itself is hidden by the operating lever in a state where battery BA is inserted. Therefore, the disassembling operation cannot be performed in a state where battery BA is mounted.

Further, a part of the battery mounted on the rear wheel-side vehicle body 120 contacts or approaches an upper surface or a front surface of the coupling lock member 127, and thus, the movement of the coupling lock member 127 away from the lock position a is hindered.

In this configuration, battery BA itself is used to prevent the movement of coupling lock member 127 away from lock position a. This structure contributes to simplification of the structure and reliably hinders the above-described operation of the coupling lock member 127 and the like.

Further, the lock member 600 is movably mounted to the rear wheel-side vehicle body 120 or the front wheel-side vehicle body 110. Further, the lock member 600 blocks the movement of the coupling lock member 127 away from the lock position a by coming into contact with or coming close to the coupling lock member 127. Further, battery BA attached to rear wheel-side vehicle body 120 contacts or approaches lock member 600, thereby preventing lock member 600 from moving away from coupling lock member 127.

With this configuration, even when the operation of the coupling lock member 127 cannot be directly inhibited by the battery BA, the operation of the coupling lock member 127 can be reliably inhibited with a simplified configuration.

When the battery BA is inserted into the storage space 33d along the wall surface of the storage space 33d of the rear wheel-side vehicle body 120 or the guide rail, the position of the battery BA with respect to the storage space 33d changes due to a minute space between the battery BA and the storage space 33 d. In the above embodiment, the second connection portion 320 of the vehicle body connector 300 is attached to the rear wheel-side vehicle body 120 so as to be movable in the direction orthogonal to the battery insertion direction. Therefore, even if the position of battery BA changes, first connection portion 201 of battery connector 200 and second connection portion 320 of vehicle body connector 300 can be smoothly connected.

In the above embodiment, the pressing member 330 is attached to the rear wheel side vehicle body 120 so as to be movable in the battery insertion direction, and the spring 360 biases the pressing member 330. When the battery BA is mounted on the rear wheel-side vehicle body 120, the pressing member 330 moves in the battery insertion direction against the urging force of the spring 360.

Therefore, when the battery BA is inserted into the housing space 33d and the first connection portion 201 of the battery connector 200 and the second connection portion 320 of the vehicle body connector 300 are connected, the battery BA is biased in the direction opposite to the traveling direction by the pressing member 330 before the connection of the first connection portion 201 and the second connection portion 320 is completed. This structure is advantageous for reducing sound, impact force, and the like when battery BA is mounted, and preventing breakage and the like of first connection portion 201 and second connection portion 320.

Further, in the above-described embodiment, when the mounting of the battery BA to the rear wheel-side vehicle body 120 by the battery lock member 500 is released, the battery BA is ejected by the urging force of the spring 360. This structure facilitates easy removal of the obliquely inserted battery BA. Further, when the battery BA inserted obliquely is pulled out from the housing space 33d without performing the above-described ejection, a force in a direction intersecting the battery insertion direction is easily applied to the battery BA. The first connection portion 201 and the second connection portion 320 may be broken by the force. Therefore, the structure for ejection is advantageous in preventing breakage of the connector.

In the above embodiment, among the surfaces between the front end FE and the rear end RE in the battery insertion direction of the battery BA, the lower surface is provided with the plurality of protrusions 408a extending along the battery insertion direction. According to this structure, when the battery BA is inserted and removed, the entire surface of the lower surface 408 of the battery BA does not contact the lower surface of the housing space 33d, which is advantageous for maintaining the appearance of the battery BA.

As shown in fig. 15, preferably, a protruding portion 409a extending in the battery insertion direction is also provided on the distal-end-side upper surface 409 of the battery BA. When battery BA is inserted into housing space 33d from the front end FE side thereof, front end side upper surface 409 of battery BA often contacts the inner surface of housing space 33 d. The ridge 409a provided on the front end side upper surface 409 of the battery BA is useful in maintaining the appearance of the front end side upper surface 409 of the battery BA.

Similarly, as shown in fig. 15 and 16, a protruding portion 410a extending in the battery insertion direction may be provided on the side surface of the battery BA. According to this structure, when inserting and removing the battery BA, the entire surface of the side surface 410 of the battery BA does not contact the side wall of the housing space 33d, which is advantageous for maintaining the appearance of the battery BA.

Further, a strap attaching portion 401a for attaching a strap may be provided to the grip member 401 of the battery BA. In fig. 4, a strap attaching portion 401a is provided on the upper end side in the clamp member 401. More specifically, when the front end FE of the battery BA is set to the front side and the rear end RE of the battery BA is set to the rear side, the clamping member 401 protrudes rearward from the rear end surface 403 of the battery BA, and the strap attaching portion 401a is provided on the front surface of the clamping member 401. In the present embodiment, the strap attaching portion 401a has a hole 401b penetrating the strap attaching portion 401a in the vehicle width direction.

When a loop-shaped strap of an appropriate length is attached to strap attaching portion 401a, battery BA can be taken out or attached by hand passing through the strap.

For example, in the present embodiment, since the housing space 33d extends obliquely downward in the vehicle front direction, the battery BA can be lifted up by using the harness, and in this state, the battery BA can be placed into the housing space 33d from the front end FE thereof while being slightly shaken. As a result, battery BA automatically moves obliquely downward and toward the vehicle front in storage space 33d by its own weight, and connects first connection unit 201 and second connection unit 320.

In the present embodiment, the pressing member 330 and the spring 360 reduce the sound, impact force, and the like when the battery BA is mounted.

Further, if the battery BA is ejected as described above by pressing the button 404, breakage of the first connection portion 201 and the second connection portion 320 can be prevented when the battery BA is removed from the storage space 33d by the harness.

Description of reference numerals:

10: a front wheel; 20: a rear wheel; 30: a mobile device body; 31: a vehicle body; 33: a seat support; 33 d: a storage space; 40: a seat unit; 43: a control arm; 43 a: an operation section; 43 b: an operating lever; 50: a motor; 51: an output shaft; 60: a control unit; 80: a control device; 110: a front-wheel-side vehicle body; 111: a front wheel side frame; 112: a side beam; 113 a: a first cross member; 113 b: a second cross member; 114: a projecting beam; 114 a: an ascending slope section; 114 b: a top portion; 114 c: a descending slope section; 120: a rear wheel-side vehicle body; 121: a rear wheel side frame; 121 a: a first recess; 121 b: a second recess; 122: a lower frame; 122 a: a side portion; 123: a shaft support portion; 125: a support frame; 126: a toppling prevention member; 127: a joint locking member; 200: a battery connector; 201: a first connection portion; 202: an aperture; 300: a body connector; 301: a guide section; 302: a pin; 310: a connector base; 320: a second connecting portion; 330: a pressing member; 331: a bolt (guide member); 340: a track; 350: a groove; 360: a spring; 401: a clamping member; 401 a: a sling mounting section; 402: a step portion; 403: a rear end face; 404: a button; 405: an upper surface; 408: a lower surface; 408 a: a protruding strip portion; 409: a front end side upper surface; 409 a: a protruding strip portion; 500: a battery locking member; 600: a locking member; 610: a spring; BA: and (4) a storage battery.

Claims

1. An electric mobile device is characterized by comprising:

a traveling apparatus main body having a front wheel-side vehicle body and a rear wheel-side vehicle body;

a seat unit supported by the mobile device main body;

a battery detachably attached to the rear wheel-side vehicle body; and

a coupling lock member movably attached to the front wheel-side vehicle body or the rear wheel-side vehicle body, maintaining coupling of the front wheel-side vehicle body and the rear wheel-side vehicle body when disposed at a lock position,

the battery attached to the rear wheel-side vehicle body blocks the movement of the coupling lock member away from the lock position.

2. The motorized mobile device of claim 1,

a part of the battery attached to the rear wheel-side vehicle body contacts or approaches an upper surface or a front surface of the coupling lock member, thereby hindering the movement of the coupling lock member away from the lock position.

3. The motorized mobile device of claim 1,

further comprising a lock member movably attached to the front-wheel-side vehicle body or the rear-wheel-side vehicle body,

the lock member is configured to hinder the movement of the joint lock member away from the lock position by coming into contact with or coming close to the joint lock member,

the battery attached to the rear wheel-side vehicle body is brought into contact with or close to the lock member, thereby preventing the lock member from moving away from the coupling lock member.

4. The motorized mobile device of any one of claims 1 to 3,

the storage battery is provided with a storage battery connector,

a vehicle body connector is provided to the rear wheel side vehicle body,

a second connecting portion that is connected to the first connecting portion of the battery connector when the battery is mounted to the rear wheel-side vehicle body is provided at the vehicle body connector,

when a direction in which the battery is inserted into the rear wheel-side vehicle body when the battery is mounted to the rear wheel-side vehicle body is set as a battery insertion direction, the second connection portion is mounted to the rear wheel-side vehicle body so as to be movable in a direction orthogonal to the battery insertion direction.

5. The motorized mobile device of claim 4,

the vehicle body connector has:

a pressing member attached to the rear wheel-side vehicle body so as to be movable in the battery insertion direction; and

a spring that urges the urging member,

when the battery is mounted on the rear wheel-side vehicle body, the pressing member moves in the battery insertion direction against the urging force of the spring.

6. The motorized mobile device of any one of claims 1 to 3,

when a direction in which the battery is inserted into the rear wheel-side vehicle body when the battery is mounted on the rear wheel-side vehicle body is set as a battery insertion direction, a plurality of protrusions extending along the battery insertion direction are provided on at least one of a lower surface, an upper surface, and a side surface of the battery.

7. The motorized mobile device of any one of claims 1 to 3 and 6,

when a direction in which the battery is inserted into the rear wheel-side vehicle body when the battery is mounted to the rear wheel-side vehicle body is set as a battery insertion direction, a gripping member for gripping the battery is provided at a rear end of the battery insertion direction of the battery,

the clamp member is provided with a strap attaching portion.