WO2018168914A1

WO2018168914A1 - Electric mobility and disassembly method therefor

Info

Publication number: WO2018168914A1
Application number: PCT/JP2018/009922
Authority: WO
Inventors: 豊隆上月; 泰大平田
Original assignee: Ｗｈｉｌｌ株式会社
Priority date: 2017-03-16
Filing date: 2018-03-14
Publication date: 2018-09-20
Also published as: DE112018000845T5; JP2018154202A; CN211685434U; CN209795688U; JP6908959B2

Abstract

This electric mobility is provided with: a front wheel-side vehicle body (110); and a rear wheel-side vehicle body (120) which is detachably connected to the front wheel-side vehicle body (110). The rear wheel-side vehicle body (120) enters a self-supporting state when detached from the front wheel-side vehicle body (110) and tilted towards the rear of the vehicle. The rear wheel-side vehicle body (120) has, provided thereto, a first recess (121a) which is used for connecting the front wheel-side vehicle body (110). When the rear wheel-side vehicle body (120) is in the self-supporting state, a first cross member (113a), which is provided to the rear end side of the front wheel-side vehicle body (110), and which is used for connecting the front wheel-side vehicle body and the rear wheel-side vehicle body, can be supported by the first recess (121a).

Description

Electric mobility and disassembling method thereof

The present invention relates to an electric mobility and a disassembling method thereof.

As such electric mobility, it can be disassembled into a removable seat, a front wheel side vehicle body, and a rear wheel side vehicle body. It is known to have a stand that extends toward the rear side so that the rear end of the front wheel side vehicle body removed from the rear wheel side vehicle body by the stand does not directly contact the ground (see, for example, Patent Document 1).

In addition, it can be disassembled into a removable seat, a removable battery, a front wheel side vehicle body, and a rear wheel side vehicle body, and the rear wheel side vehicle body protrudes rearward from the rear wheel (a fall prevention rod). ), And the rear wheel side vehicle body has a center of gravity behind the rotation axis of the rear wheel. Therefore, when the rear wheel side vehicle body is removed from the front wheel side vehicle body, the rear wheel side vehicle body is tilted rearward and the protruding member is grounded. There is known an electric mobility in which a rear wheel-side vehicle body is supported by a rear wheel (see, for example, Patent Document 2).

JP 2001-29398 A JP-A-4-274986

In the former electric mobility, after removing the front wheel side vehicle body from the rear wheel side vehicle body, it is necessary to change the stand provided on the front wheel side vehicle body from the sideways posture to the upright posture. It takes a lot of work.
In the latter electric mobility, there is no stand for supporting the rear end side of the front wheel side vehicle body removed from the rear wheel side vehicle body, so that a person who is disassembling when removing the front wheel side vehicle body from the rear wheel side vehicle body It is necessary to support at least the rear end side of the front wheel side vehicle body.

When the front wheel side vehicle body is removed, the rear wheel side vehicle body is tilted by its own weight toward the rear until the protruding member contacts the ground, as explained in the document, but the rear wheel side vehicle body is For fear of hitting, it may be possible to control the rearward tilt of the rear wheel side vehicle body by holding a part of the rear wheel side vehicle body. In this case, since it is necessary to support the rear wheel side vehicle body while lifting the rear end side of the front wheel side vehicle body, it may not be possible to easily disassemble the front wheel side vehicle body and the rear wheel side vehicle body by one person.

The present invention has been made in view of such circumstances, and it is possible to easily perform the disassembly work and the assembly work of the front wheel side vehicle body and the rear wheel side vehicle body by one person and the disassembly thereof. The purpose is to provide a method.

In order to solve the above problems, the present invention employs the following means.
The electric mobility according to the first aspect of the present invention includes a front wheel side vehicle body and a rear wheel side vehicle body that is detachably connected to the front wheel side vehicle body, and the rear wheel side vehicle body is detached from the front wheel side vehicle body. The rear wheel side vehicle body is provided with a first engagement portion used for connection with the front wheel side vehicle body, and the rear wheel side vehicle body is in the self-standing state. At this time, a second engagement portion provided on the rear end side of the front wheel side vehicle body and used for the connection can be supported by the first engagement portion.

In this aspect, for example, when the rear wheel side vehicle body is detached from the front wheel side vehicle body to be in a self-supporting state, the second engagement provided on the rear end side of the front wheel side vehicle body by the first engagement portion of the rear wheel side vehicle body. The front wheel side vehicle body is supported by the front wheel and the first engagement portion of the rear wheel side vehicle body. For this reason, the person who performs the disassembling work in this state does not need to support the front wheel side vehicle body. Even when the assembly work for assembling the rear wheel side vehicle body to the front wheel side vehicle body is performed, the front wheel side vehicle body can be supported by the first engagement portion of the rear wheel side vehicle body and the front wheel in a self-supporting state. .

In the above aspect, the second engagement body is provided on the rear wheel side vehicle body, is provided on the vehicle front side with respect to the first engagement portion, and is provided on the front wheel side vehicle body. And a fourth engaging portion that engages with the third engaging portion at the time of the connection, and has the self-standing state of the rear wheel side vehicle body. The first engagement portion is disposed on the front side of the vehicle with respect to the lower contact portion, a lower contact portion that contacts the second engagement portion of the front wheel side vehicle body from below, and the lower side It is preferable to have a front abutting portion disposed at a position higher than the abutting portion.

If comprised in this way, when the 2nd engagement part of a front-wheel side vehicle body is engaging with the 1st engagement part of the rear-wheel side vehicle body of a self-supporting state, a 2nd engagement part is ahead of a vehicle. Since the movement is restricted or suppressed by the front contact portion of the first engagement portion, the rear end side of the front wheel side vehicle body is stably supported by the first engagement portion of the rear wheel side vehicle body.

In the above aspect, the operation member provided on the rear wheel side vehicle body and operated to release the connection, and the rear wheel side vehicle body disposed on the vehicle front side with respect to the rotation axis of the rear wheel. It is preferable to further provide a handle portion provided.
With this configuration, in a state where the front wheel side vehicle body and the rear wheel side vehicle body are connected, for example, while holding the handle portion with one hand, the operation member is operated with the other hand to release the connection, When the handle is lifted in this state, the rear wheel side vehicle body tilts rearward and becomes self-supporting. In the self-supporting state, the front wheel side vehicle body is supported by the front wheel and the first engagement portion of the rear wheel side vehicle body. For this reason, the disassembling work can be easily performed.

In the above aspect, after the first engagement portion releases the connection between the front wheel side vehicle body and the rear wheel side vehicle body, the rear wheel side vehicle body is inclined rearward of the vehicle to be in the self-supporting state. It is preferable that the second engagement portion is continuously supported from below.
In this configuration, after the connection between the front wheel side vehicle body and the rear wheel side vehicle body is released, the person who performs the disassembly work supports only the rear wheel side vehicle body and makes the rear wheel side vehicle body self-supporting. Since the rear end side of the front wheel side vehicle body is supported by the rear wheel side vehicle body, it is advantageous in facilitating disassembly work.

A second aspect of the present invention is an electric mobility disassembling method capable of removing a rear wheel side vehicle body from a front wheel side vehicle body, wherein the rear end side of the front wheel side vehicle body is supported by the rear wheel side vehicle body, Tilting the rear wheel side vehicle body rearward around the rear wheel until the rear wheel side vehicle body is in a self-supporting state, and the rear end side of the front wheel side vehicle body after the rear wheel side vehicle body is in a self-supporting state. Removing from the rear wheel side vehicle body.

In this case, for example, after the connection between the front wheel side vehicle body and the rear wheel side vehicle body is released, the person who performs the disassembly work supports only the rear wheel side vehicle body and makes the rear wheel side vehicle body self-supporting. Since the rear end side of the front wheel side vehicle body is supported by the rear wheel side vehicle body, it is advantageous in facilitating disassembly work.

In the above aspect, the rear wheel side vehicle body includes an operation member that is operated to release the connection of the travelable aspect between the front wheel side vehicle body and the rear wheel side vehicle body. Preferably, the connection is released by operating the operation member while applying a force toward the rear of the vehicle.
In this way, the rear end side of the front wheel side vehicle body is supported by the rear wheel side vehicle body that is self-supported by simply releasing the connection by operating the operation member while applying a force that tilts the rear wheel side vehicle body in its own direction. Therefore, the division work can be performed more easily.

According to the present invention, it becomes possible for one person to easily disassemble and assemble the front wheel side vehicle body and the rear wheel side vehicle body.

It is a back perspective view of electric mobility concerning one embodiment of the present invention. It is a front perspective view of the electric mobility of this embodiment. It is a bottom view of the state where components were removed so that the frame of electric mobility of this embodiment might be exposed. It is principal part sectional drawing of the electric mobility of this embodiment. It is a perspective view of the rear wheel side frame, motor, etc. of the electric mobility of this embodiment. It is a figure which shows the connection structure of the front-wheel side frame and rear-wheel side frame of the electric mobility of this embodiment. It is a figure which shows the connection method of the front-wheel side frame and rear-wheel side frame of the electric mobility of this embodiment. It is a figure which shows the connection method of the front-wheel side frame and rear-wheel side frame of the electric mobility of this embodiment. It is a figure which shows the connection method of the front-wheel side frame and rear-wheel side frame of the electric mobility of this embodiment. It is a figure which shows the connection method of the front-wheel side frame and rear-wheel side frame of the electric mobility of this embodiment. It is a figure which shows the principal part structure of the rear wheel side vehicle body of the electric mobility of this embodiment. It is a block diagram which shows schematic structure of the control unit of the electric mobility of this embodiment.

An electric mobility according to an embodiment of the present invention will be described below with reference to the drawings.
The electric mobility has a mobility main body 30 as shown in FIGS. 1 to 3, and the mobility main body 30 is supported by a pair of front wheels 10, a pair of rear wheels 20, and a front wheel 10 and a rear wheel 20. Body 31. The electric mobility includes a seat unit 40 that is detachably attached to the mobility main body 30, and a motor 50 that is attached to the mobility main body 30 and drives at least one of the pair of front wheels 10 and the pair of rear wheels 20. Have In the following description, the vehicle front-rear direction may be referred to as the front-rear direction, and the vehicle width direction may be referred to as the width direction.

In the present embodiment, a motor 50 is connected to each of the pair of rear wheels 20, and the two rear wheels 20 can be driven by each motor 50. You may comprise so that the driving force of the motor 50 may be transmitted to a pair of front wheels 10 via power transmission means, such as a belt and a gear.
Each front wheel 10 is supported by the body 31 via an axle, a suspension, etc. (not shown). Each front wheel 10 has a ground contact surface formed by a plurality of

rollers

13 and 14 arranged in the circumferential direction. The outer shape of the roller 13 is smaller than the outer shape of the roller 14, and the roller 13 and the roller 14 are alternately arranged in the circumferential direction.

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, respectively. Each is rotatably supported on a roller spindle. The hub 15 may be directly attached to the axle via a bearing or the like, or may be attached to the axle via a buffer member or other intermediate member.

With this configuration, the

rollers

13 and 14 can rotate around an axis extending in a direction intersecting the radial direction of the axle, and each front wheel 10 can move in all directions with respect to the ground plane. It is a moving wheel.
In the present embodiment, each rear wheel 20 is provided on an axle (may be common with the main shaft of the motor 50), a hub 22 attached to the axle, and an outer peripheral side of the hub 22, and the outer peripheral surface has rubber-like elasticity. Although the outer peripheral member 23 is made of a material, an omnidirectional moving 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 10. Further, each front wheel 10 may be the same wheel as the rear wheel 20, and means for changing the steering angle of the front wheel 10 and / or the rear wheel 20 may be provided.

The mobility main body 30 includes a front wheel side vehicle body 110 and a rear wheel side vehicle body 120 that is detachably connected to the front wheel side vehicle body 110. The front wheel side vehicle body 110 is formed so as to extend along the ground, and is provided so as to cover at least a part of the front wheel side frame 111 and the front wheel side frame 111 to which the axle of the front wheel 10 is attached. A front wheel side cover 110a used for protection, a part on which a foot of a passenger sitting on the seat unit 40 is placed, a luggage placing part, mudguard and the like.

The front wheel side frame 111 is made of a material suitable for obtaining strength, such as metal. For example, as shown in FIG. The first to third cross members 113a to 113c extend in the vehicle width direction and connect the pair of side members 112 to each other. Of the plurality of cross members 113a to 113c, the first cross member (second engaging portion) 113a is provided at the rear end portion of the pair of side members 112, and the second cross member (fourth engaging portion). ) 113b is disposed on the vehicle front side relative to the first cross member 113a.

The rear wheel side body 120 supports the motor 50 and the rear wheel 20 on both sides in the vehicle width direction, and the rear wheel side frame 121 that supports the seat unit 40 on the upper end side, and at least a part of the rear wheel side frame 121. The rear wheel side cover 120a is provided so as to cover and used for protection of the rear wheel side frame 121, mudguard and the like.

The rear wheel side frame 121 is made of a material suitable for obtaining strength such as metal, and as shown in FIGS. 3 and 5, for example, a lower member 122 having a pair of side members 122a extending in the front-rear direction. A pair of motor fixing portions 123 in the vehicle width direction to which the motor 50 to which the rear wheel 20 is attached is fixed, and a pair of motor fixing portions 123 extending in the vehicle width direction and connecting the pair of motor fixing portions 123 to each other. A plurality of cross members 124a to 124c for fixing 123 to the lower member 122, a lower end side is fixed to the side members 122a, cross members 124a to 124c, etc., and a seat mounting member 32 for mounting the seat unit 40 to the upper end side is provided. And a support frame 125 to be attached (see FIG. 4).

Further, the rear wheel side frame 121 is provided with a pair of width direction fall prevention members (protruding members) 126 to prevent the electric mobility from falling backward in the vehicle. Each fall prevention member 126 includes a metal tilting member 126a supported at one end side by the rear wheel side frame 121 and tiltable in the vertical direction, and an auxiliary wheel 126b rotatably supported at the other end of the tilting member 126a. Have. Each fall prevention member 126 is supported by the rear wheel side frame 121 at one end side and can tilt in the vertical direction, and the auxiliary wheel 126 b as the other end portion protrudes rearward of the pair of rear wheels 20. Further, the pair of fall prevention members 126 are connected to each other by the connecting member 126c, whereby the pair of fall prevention members 126 are tilted together in the vertical direction.

A seat support portion 33 for supporting the seat unit 40 is formed on the body 31 by the support portion frame 125 and a portion of the rear wheel side cover 120a that covers the support portion frame 125. The support portion frame 125 is inclined forward of the vehicle from the lower end side toward the upper end side. Therefore, the seat support portion 33 is also inclined forward of the vehicle from the lower end side toward the upper end side. Since the support part 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 rotational axis 20a of the rear wheel 20 to such an extent that the center of gravity can be clearly seen.

1 and 2, the seat support portion 33 has a front surface 33a, a back surface 33b, and a pair of side surfaces 33c disposed between the front surface 33a and the back surface 33b. A handle portion 125 c (see FIG. 4) is integrally provided on the upper end side of the support portion frame 125, and the handle portion 125 c protrudes from the upper end side of the back surface 33 b of the seat support portion 33. It is preferable that the position of the handle portion 125c to be gripped by the hand is arranged in front of the rotation axis 20a of the rear wheel 20 of the rear wheel side vehicle body 120 connected to the front wheel side vehicle body 110.

As shown in FIGS. 1 and 4, a rechargeable battery BA is detachably attached to the seat support 33. The front surface 33a and the rear surface 33b of the seat support portion 33 are inclined forward from the lower end side toward the upper end side, and an opening portion of an accommodation space 33d for accommodating the battery BA is provided on the rear surface 33b. A control unit 60 described later is disposed in the seat support portion 33.

The seat mounting member 32 is a member having a longitudinal length, and is provided with a plurality of positioning holes 32a spaced in the vertical direction. Each positioning hole 32a penetrates the seat mounting member 32 in a direction orthogonal to the longitudinal direction thereof. A cylindrical portion 125a through which the seat mounting member 32 is inserted in the vertical direction is provided on the upper end side of the support portion frame 125, and a support portion side hole 125b penetrating in the front-rear direction is provided in the cylindrical portion 125a. The inner shape of the cylindrical portion 125 a is slightly larger than the outer shape of the seat mounting member 32.

The seat mounting member 32 is inserted into the cylindrical portion 125a, and any positioning hole 32a and the support portion side hole 125b are aligned, and the positioning member 32b is inserted into the support portion side hole 125b and the positioning hole 32a. The seat attachment member 32 is attached by attaching to the cylindrical part 125a. Further, by changing the positioning hole 32a through which the positioning member 32b is inserted, the height position of the seat mounting member 32 relative to the mobility main body 30, that is, the height position of the seat unit 40 can be adjusted.

The seat unit 40 is fixed under the seat surface portion 41, the backrest portion 42, the pair of control arms 43 in the vehicle width direction, and the seat surface portion 41, and is attached to and detached from the seat mounting member 32 of the seat support portion 33. And a seating frame 44 that can.

An operation portion 43a having an operation lever 43b is provided at the upper end of the right control arm 43. When no force is applied, the operation lever 43b is moved by a biasing member (not shown) disposed in the operation portion 43a. It is arranged at the neutral position, and the rider can displace the operation lever 43b in the right direction, the left direction, the front direction, and the rear direction with respect to the neutral position with the right hand.

A signal corresponding to the displacement direction and displacement amount of the operation lever 43b is transmitted from the operation unit 43a to the control unit 60 described later, and each motor 50 is driven according to the signal. For example, when the operation lever 43b is displaced in the forward direction with respect to the neutral position, a signal for rotating each motor 50 toward the front of the vehicle is transmitted, and the electric mobility advances at a speed corresponding to the displacement amount of the operation lever 43b. . Further, when the operation lever 43b is displaced diagonally left forward with respect to the neutral position, a signal for rotating the left motor 50 toward the front of the vehicle at a slower speed than the right motor 50 is transmitted, and the electric mobility is operated by the operation lever. The vehicle advances while turning left at a speed corresponding to the amount of displacement 43b.

The upper end of the left control arm 43 is provided with a setting unit 43c capable of performing various settings related to electric mobility such as maximum speed setting, operation mode setting, electric mobility lock setting, and the like. Operating buttons, a display device and the like are provided. For example, as an example of the driving mode, an energy saving driving mode that suppresses power consumption, a sports driving mode that emphasizes driving performance without reducing power consumption, a normal driving mode between the energy saving driving mode and the sports driving mode, etc. Is mentioned. Examples of the setting of electric mobility lock include setting of a personal identification number for locking, setting of unlock timing, and the like. The setting signal of the setting unit 43c is transmitted to the control unit 60 described later, and the setting of the electric mobility is registered or changed in the control unit 60.

As shown in FIG. 12, the control unit 60 includes a motor driver 70 that drives each motor 50 and a control device 80.
The motor driver 70 is connected to the battery BA through a power line and is connected to each motor 50 through a power line, and drives each motor 50 by supplying power.

The control device 80 includes, for example, a control unit 81 having a CPU, a RAM, 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 mobility. The control unit 81 operates based on the program, and drives each motor 50 based on signals from the operation unit 43a and the setting unit 43c. A drive signal is transmitted to the motor driver 70.

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 FIGS. 4 to 6, each side member 122a of the rear wheel side frame 121 is formed with a substantially U-shaped first recess (first engaging portion) 121a that opens toward the front of the vehicle. In addition, a substantially U-shaped second recess (third engagement portion) 121b is formed which is disposed in front of the vehicle relative to the first recess 121a and opens downward. The first recess 121a is engaged with the first cross member 113a of the front wheel side frame 111, and the second recess 121b is engaged with the second cross member 113b of the front wheel side frame 111 ( (See FIG. 9).

More specifically, as shown in FIG. 7, the front wheel side frame 111 is in a state where the rear wheel side vehicle body 120 is tilted rearward around the rotation axis 20 a of the rear wheel 20 rather than being connected to the front wheel side vehicle body 110. The first cross member 113a is placed in the pair of first recesses 121a. In this state, each of the first recesses 121a is opened obliquely upward, so that the first cross member 113a of the front wheel side vehicle body 110 is difficult to drop off from the first recess 121a.

Here, as shown in FIG. 11, the first recess 121a has a pair of side surfaces 121c and a bottom surface 121d. Therefore, as shown in FIG. 7, the side surface 121c and the bottom surface 121d arranged on the lower side or the side surface 121c are disposed on the first cross member 113a that has entered the first recess 121a opened obliquely upward. However, it abuts from below. That is, the first recess 121a has the lower contact portion LC that contacts the first cross member 113a from below as described above. At this time, the first recess 121a also includes a front contact portion FC that is disposed on the vehicle front side with respect to the lower contact portion LC and disposed at a position higher than the lower contact portion LC. Due to the presence of the front contact portion FC, the first cross member 113a of the front wheel side vehicle body 110 is unlikely to drop off from the first recess 121a.

After the above state, as shown in FIGS. 8 and 9, when the rear-wheel side vehicle body 120 is tilted around the rotation axis 20 a of the rear wheel 20 toward the front of the vehicle, the second cross of the front-wheel side frame 111 is obtained. The member 113b enters the pair of second recesses 121b from below. Accordingly, the vertical movement of the first cross member 113a with respect to the rear wheel side frame 121 is restricted by the pair of side surfaces 121c of the first recess 121a shown in FIG. 11, and the rear wheel side of the second cross member 113b. The upward movement with respect to the frame 121 is restricted by the bottom surface 121f of the second recess 121b shown in FIG. Further, the movement in the front-rear direction with respect to the rear wheel side frame 121 of the second cross member 113b is performed by the pair of side surfaces 121e (see FIG. 11) of the second recess 121b, or by the pair of side surfaces 121e of the second recess 121b and later. The connection lock member 127 is regulated. In this way, the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected. Further, the backward movement of the first cross member 113a with respect to the rear wheel frame 121 is also restricted by the bottom surface 121d of the first recess 121a.

As shown in FIGS. 4 and 6, the rear wheel side frame 121 is provided with a connecting lock member 127 that tilts around a tilt axis 127c extending in the vehicle width direction. One end side of the connection lock member 127 is supported by one of the pair of side members 122a, the plurality of cross members 124a to 124c, the support portion frame 125, etc., and the connection lock member 127 tilts around the tilt axis 127c. In the present embodiment, the connection lock member 127 is disposed on the inner side in the vehicle width direction than the pair of second recesses 121b provided in the pair of side members 122a in the vehicle width direction.

The connecting lock member 127 is urged by an urging member 127d such as a torsion spring so that the other end tilts backward. Further, when the connecting lock member 127 is tilted rearward by the biasing member 127d, a part of the connecting lock member 127 or a member fixed to the connecting lock member 127 comes into contact with a part of the rear wheel side frame 121, and The connection lock member 127 is configured not to tilt to the rear side of the vehicle with respect to the contact position.

The connecting lock member 127 is formed with a protruding portion 127a that protrudes rearward, and when the connecting lock member 127 is tilted rearward by the biasing member 127d and disposed at the lock position A indicated by the solid line in FIG. Thus, the protrusion 127a is configured to come into contact with the second cross member 113b entering the second recess 121b from below. For this reason, the engagement between the second cross member 113b and the second recess 121b is maintained by the connection lock member 127. That is, the connection between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 is maintained by the connection lock member 127. When the connecting lock member 127 is disposed at the lock position A, as shown in FIG. 11, a part of the protrusion 127a (a part at the rear of the vehicle) is located at the rear of the pair of side surfaces 121e of the second recess 121b. It arrange | positions in the vehicle back rather than the side 121e.

In the present embodiment, the connection means a state where the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected in a state where the second cross member 113b is engaged with the second recess 121b and the vehicle can run. Say. That is, such a connection is maintained by the connection lock member 127.
On the other hand, when the connecting lock member 127 is tilted forward of the vehicle and disposed at the retracted position B shown in FIG. 6, the projecting portion 127a does not come into contact with the second cross member 113b. The connection with the side vehicle body 120 can be released or released.

In addition, the rear surface of the vehicle on the other end side of the connection lock member 127 has an inclined surface 127b that is inclined rearward from the bottom upward when the front wheel body 110 and the rear wheel body 120 are connected. Is provided. Then, when the rear wheel side vehicle body 120 is tilted forward of the vehicle around the rotation axis 20a of the rear wheel 20 with the first cross member 113a of the front wheel side frame 111 being in the pair of first recesses 121a, The second cross member 113b is configured to contact the inclined surface 127b from below (see FIG. 10).

When the second cross member 113b comes into contact with the inclined surface 127b from below, the connecting lock member 127 tilts forward of the vehicle against the urging force of the urging member 127d, whereby the second cross member 113b becomes the second cross member 113b. Into the recess 121b. When the second cross member 113b enters the second recess 121b, the connecting lock member 127 is tilted rearward by the biasing member 127d, and the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are moved by the connection lock member 127. The connection with is maintained.

Each tilting member 126a is provided with a member engaging portion 126e that engages the cross member 124a from above, behind the vehicle, or from below. Further, on each tilting member 126a, the other end side of the member engaging portion 126e is engaged with an engaging pin 128a provided at one end portion of the tilting lock member (first restricting means) 128 from above or from the rear of the vehicle. A lock member engaging portion 126f is provided.

The center side of each tilt lock member 128 is supported by the rear wheel side frame 121 and can be tilted around a tilt axis 128b extending in the vehicle width direction, and an engagement pin 128a is provided at one end (lower end). When one end portion of the tilt lock member 128 tilts forward of the vehicle, the engagement between the engagement pin 128a and the lock member engagement portion 126f of the fall prevention member 126 is released, and the other end portion of the fall prevention member 126 tilts upward. It becomes possible.

When the fall-preventing member 126 tilts upward, the lock member engaging portion 126f of the fall-preventing member 126 is engaged with the cross member (second restricting means) 124a from above or from the rear of the vehicle. Tilt to is regulated.

That is, when the lock member engaging portion 126f of the fall prevention member 126 is engaged with the engagement pin 128a of the tilt lock member 128, tilting of the fall prevention member 126 upward from the first tilt position is restricted. . Further, when the lock member engaging portion 126f of the fall prevention member 126 is engaged with the cross member 124a, the tilt of the fall prevention member 126 is restricted from being tilted upward from the second tilt position. Further, when the member engaging portion 126e of the fall prevention member 126 is engaged with the cross member 124a, the tilt of the fall prevention member 126 is restricted from being tilted downward from the third tilt position. By causing a part of the fall prevention member 126 to engage with the other part of the rear wheel side vehicle body 120, tilting of the fall prevention member 126 below the third tilt position may be restricted. The second tilt position is above the first tilt position, and the third tilt position is equivalent to or slightly below the first tilt position.

One end of a plate-like link member 129 is connected to the other end of the tilt lock member 128, and the other end of the link member 129 is connected to a position away from the tilt axis 127c of the connection lock member 127. . By the connection by the link member 129, the engagement pin 128 a is engaged with the lock member engagement portion 126 f in a state where the connection lock member 127 is disposed at the lock position A, or is disposed at an engageable position. . On the other hand, in a state where the connecting lock member 127 is disposed at the retracted position B, the engagement pin 128a and the lock member engagement portion 126f are not engaged.

The other end of the tilt lock member 128 is connected to one end of an operation lever 130 as an operation means, and the operation lever 130 tilts around the tilt axis 128 b of the tilt lock member 128. As shown in FIGS. 1 and 6 and the like, the other end of the operation lever 130 protrudes from the rear wheel side cover 120a of the rear wheel body 120, so that the operation lever 130 is tilted rearward or downward to engage the engagement lever 130. The engagement between the coupling pin 128a and the lock member engagement portion 126f can be released, and the connection lock member 127 can be disposed at the retracted position B.

An example of a method for releasing the connection between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 in the electric mobility configured as described above will be described.
First, in a state where the seat unit 40 is detached from the rear wheel side vehicle body 120, the handle portion 125c protruding from the upper end side of the back surface 33b of the seat support portion 33 is grasped with one hand, and the handle portion 125c is Alternatively, the control lever 130 is tilted backward or downward while applying a force toward the rear of the vehicle. As a result, the engagement between the engagement pin 128a and the lock member engagement portion 126f is released, the connection lock member 127 is disposed at the retracted position B, and the second cross member 113b comes out of the second recess 121b. It becomes a state.

In this state, when the rear-wheel side vehicle body 120 is tilted rearward around the axle of the rear wheel 20, the auxiliary wheel 126b, which is the other end portion of the fall prevention member 126, is grounded. Further, when the rear wheel side vehicle body 120 is tilted rearward around the axle of the rear wheel 20, the lock member engaging portion 126f of the fall prevention member 126 is engaged with the cross member 124a at the second tilt position, thereby preventing the fall. The upward tilt of the member 126 is restricted.

At this time, the position of the center of gravity of the rear wheel side vehicle body 120 is disposed between or near the ground contact position of the rear wheel 20 and the ground contact position of the auxiliary wheel 126b of the fall prevention member 126 in the vehicle longitudinal direction. It is preferable. As a result, the rear wheel side vehicle body 120 is stably supported by the rear wheel 20 and the overturn prevention member 126.

On the other hand, when the rear wheel side vehicle body 120 is tilted rearward, as shown in FIG. 7, each first recess 121a is opened obliquely upward, so that the first cross member 113a of the front wheel side vehicle body 110 is in the first state. Are supported stably in the recess 121a. That is, as shown in FIG. 7, the presence of the front abutting portion FC makes it difficult for the first cross member 113a of the front wheel side vehicle body 110 to drop off from the first recess 121a. Therefore, the front wheel side vehicle body 110 is removed from the first recess 121a by releasing the handle 125c, lifting the rear end side of the front wheel side vehicle body 110, and pulling out the first cross member 113a from the first recess 121a. Can be removed from. Also at this time, the rear wheel side vehicle body 120 is stably supported by the rear wheel 20 and the fall prevention member 126. After being disassembled in this way, the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are loaded on an automobile or the like.

Next, an example of a method for connecting the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 will be described.
First, the auxiliary wheel 126b and the rear wheel 20 of the fall prevention member 126 are grounded in a state where the fall prevention member 126 is disposed at the second tilt position. In this state, the first cross member 113a of the front wheel side vehicle body 110 is inserted into the first recess 121a. Accordingly, the front wheel side vehicle body 110 is supported by the first recess 121a and the front wheel 10.

Next, the rear wheel body 120 is tilted forward around the axle of the rear wheel 20. As a result, as shown in FIG. 10, the second cross member 113 b comes into contact with the inclined surface 127 b of the connection lock member 127 from below. In this state, when the rear wheel side vehicle body 120 is further tilted forward around the axle of the rear wheel 20, the connecting lock member 127 tilts forward of the vehicle, whereby the second cross member 113b is moved into the second recess 121b. enter. When the second cross member 113b enters the second recess 121b, the connecting lock member 127 is tilted rearward by the biasing member 127d, and the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are moved by the connection lock member 127. The connection with is maintained.

Thus, according to the present embodiment, when the rear wheel side vehicle body 120 is detached from the front wheel side vehicle body 110 to be in a self-supporting state, the first recess 121a (first engagement portion) of the rear wheel side vehicle body 120 is used. A first cross member 113a (second engagement portion) provided on the rear end side of the front wheel side vehicle body 110 is supported, and the front wheel side vehicle body 110 is connected to the front wheel 10 and the first recess 121a of the rear wheel side vehicle body 120. It will be in the state supported by. For this reason, the person who performs the disassembly work in this state does not need to support the front wheel side vehicle body 110. When the assembly work for assembling the rear wheel side vehicle body 120 to the front wheel side vehicle body 110 is performed, the front wheel side vehicle body 110 is supported by the first recess 121a of the rear wheel side vehicle body 120 and the front wheel 10 in a self-supporting state. can do.

Further, the first recess 121a of the rear wheel side vehicle body 120 in the self-standing state is formed by a lower contact portion LC that contacts the first cross member 113a of the front wheel side vehicle body 110 from below and a lower contact portion LC. And the front contact portion FC disposed on the vehicle front side and disposed at a position higher than the lower contact portion LC. Therefore, when the first cross member 113a of the front wheel side vehicle body 110 is engaged with the first recess 121a of the rear wheel side vehicle body 120 in a self-supporting state, the first cross member 113a is moved forward of the vehicle. It is regulated or suppressed by the front contact portion FC of the first engagement portion 121a.

Further, in a state where the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected, while holding the handle portion 125c with one hand, the operation lever 130 is operated with the other hand to release the connection, When the handle portion 125c is lifted in the state, the rear wheel side vehicle body 120 tilts rearward and becomes a self-supporting state. In the self-supporting state, the front wheel side vehicle body 110 is supported by the front wheel 10 and the first recess 121a of the rear wheel side vehicle body 120. For this reason, the disassembling work can be easily performed.

In addition, the first recess 121a has a first cross section until the rear wheel body 120 is tilted rearward and becomes independent after the connection between the front wheel body 110 and the rear wheel body 120 is released. Continue to support the member 113a from below. For this reason, after releasing the connection between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120, the person who performs the disassembly work supports only the rear wheel side vehicle body 120 and makes the rear wheel side vehicle body 120 in an independent state. The rear wheel side vehicle body 120 that is self-supporting is in a state where the rear end side of the front wheel side vehicle body 110 is supported. This structure is advantageous in facilitating the disassembly work.

Further, in this embodiment, when the tilt restriction by the tilt lock member 128 is released by the operation lever 130, the fall prevention member 126 tilts to the second tilt position above the first tilt position, and the position Therefore, the upward tilting is restricted by the cross member 124a.
For this reason, when the auxiliary wheel 126b of the fall prevention member 126 is grounded, the position of the center of gravity of the rear wheel-side vehicle body 120 moves to the rear of the vehicle. For example, the position of the center of gravity is the grounding part of the rear wheel 20 and the grounding part of the auxiliary wheel 126b. The rear wheel side vehicle body 120 can be stably supported by the rear wheel 20 and the toppling prevention member 126.

Further, in this embodiment, when the connection lock member 127 is moved to the retracted position B by the operation lever 130 and the connection lock between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 is released, the tilting by the tilt lock member 128 is performed. The overturn prevention member 126 is tilted to the second tilt position above the first tilt position, and the tilting upward is regulated by the cross member 124a at that position. For this reason, when the connection release operation is performed, the rear wheel body 120 can be stably supported by the rear wheel 20 and the fall-preventing member 126, which is advantageous in facilitating the connection release operation. It is.

Further, when the tilt lock member 128 is tilted, the link lock member 129 also tilts the link lock member 127. Therefore, the tilt restriction by the tilt lock member 128 is released in conjunction with the release operation of the connection, and the rear wheel side vehicle body 120 can be stably and stably supported by the rear wheel 20 and the fall prevention member 126. Can be in a state. The operation lever 130 may be fixed to the connection lock member 127, and when the connection lock member 127 is tilted, the tilt lock member 128 may also be tilted by the link member 129.

Further, when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected, a fall prevention member 126 that is disposed at the first tilt position and prevents the electric mobility from falling backward is provided between the front wheel side vehicle body 110 and the front wheel side vehicle body 110. Since it is used to support the rear wheel side vehicle body 120 that has been released from the connection, there is no need to provide a dedicated member for supporting the rear wheel side vehicle body 120.

Further, by confirming the tilting state of the tiltable operation lever 130 provided on the rear wheel side vehicle body 120, the tilting restriction state by the tilting lock member 128 and the locking state by the connecting lock member 127 are physically confirmed. can do. For this reason, unreasonable operations such as tilting the rear wheel side vehicle body 120 rearward in a state where the tilting restriction by the tilting lock member 128 and the lock by the connecting lock member 127 are not released are prevented. In addition, when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected, the state of tilt restriction by the tilt lock member 128 and the state of lock by the connection lock member 127 can be physically confirmed.

Further, in a state where the upward tilt is restricted by the tilt lock member 128, the downward tilt of the fall prevention member 126 is restricted by the cross member 124a of the rear wheel side frame 121. Further, even when the restriction of the tilting by the tilt lock member 128 is released and the tipping prevention member 126 is tilted to the second tilting position, the upward tilting of the tipping prevention member 126 is restricted by the same cross member 124a. For this reason, the configuration for controlling the tilting of the fall prevention member 126 can be simplified, which is advantageous in electric mobility where there is a strong demand for weight reduction and design space is limited.

In this embodiment, the tilting lock member 128 and the connecting lock member 127 are tilted by the operation lever 130. For example, the output shaft of the speed reducer is connected to at least one of the tilting lock member 128 and the connecting lock member 127. In addition, the drive shaft of the speed reducer can be configured to be driven by a motor. In this case, the control device 80 may be configured to control the motor 50 based on the lock release signal or the lock signal received by the control device 80.

In the present embodiment, the seat unit 40 is disassembled into the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 after being removed from the mobility main body 30. On the other hand, it is also possible to disassemble the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 without removing the seat unit 40. When the seat unit 40 is attached to the front wheel side vehicle body 110 instead of the rear wheel side vehicle body 120, or when the seat unit 40 is small, it may not be necessary to remove the seat unit 40.

Further, in the present embodiment, the fall prevention member 126 protrudes rearward of the rear wheel 20 and tilts the fall prevention member 126 upward so that the auxiliary wheel 126b and the rear wheel 20 at the other end of the fall prevention member 126 The support for the rear wheel side vehicle body 120 is shown. On the other hand, the fall prevention member 126 may be configured without the auxiliary wheel 126b. Even in this case, the fall prevention member 126 can prevent the electric mobility from falling backward, and the rear wheel side vehicle body 120 can be supported by the other end portion of the fall prevention member 126 and the rear wheel 20.

Further, in the present embodiment, when the center of gravity of the rear wheel side vehicle body 120 is located behind the rotation axis 20a of the rear wheel 20, the fall prevention member 126 is located above the first tilt position. On the other hand, it is possible to provide a projecting member that projects forward of the vehicle relative to the rear wheel side vehicle body 120 while being configured not to tilt.

In this case, one end of the projecting member is supported by the rear wheel side vehicle body 120 and can be tilted in the vertical direction. Further, in a connected state of the front wheel side vehicle body 110 and the rear wheel side vehicle body 120, the projecting member is disposed at the first tilt position so as to extend in the vehicle longitudinal direction, for example. When the connection between the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 is released, or after that, the projecting member can be tilted to a second tilt position that is higher than the first tilt position. As a result, when the rear wheel side vehicle body 120 is supported by the other end portion of the protruding member and the rear wheel 20, the position of the center of gravity of the rear wheel side vehicle body 120 moves forward of the vehicle as compared with the connection.

The rear wheel side frame 121 is provided with a cross member, an engagement pin, etc. extending in the vehicle width direction instead of the first recess 121a, and each side member 112 of the front wheel side frame 111 is replaced with the first cross member 113a. For example, a substantially U-shaped recess opening obliquely downward toward the front of the vehicle may be provided, and the recess may be configured such that a cross member, an engagement pin, or the like of the rear wheel side frame 121 is engaged with each recess.

Further, instead of the second recess 121b of the rear wheel side frame 121, a cross member extending in the vehicle width direction, an engaging pin or the like is provided, and each side member 112 of the front wheel side frame 111 is replaced with the second cross member 113b. For example, a substantially U-shaped recess that opens upward may be provided, and a cross member, an engagement pin, and the like of the rear wheel side frame 121 may be engaged with each recess. Further, the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 may be configured to be detachably connected by other methods.

In addition, in this embodiment, what provided the substantially recessed U-shaped 1st recessed part 121a and the 2nd recessed part 121b in the rear-wheel side flame | frame 121 was shown, respectively. On the other hand, the first recess 121a contacts the first cross member 113a from below, above, and from the rear of the vehicle when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected, and opens to the front of the vehicle. If it exists, even if it is another shape, there exists an effect similar to the above-mentioned. Further, the second recess 121b is also configured so as to contact the second cross member 113b from the upper side, the rear side of the vehicle, and the front side of the vehicle when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected, and open downward. Even in other shapes, the same effects as described above can be obtained.

Further, as described above, when the front wheel side frame 111 is provided with a recess opening obliquely downward toward the front of the vehicle instead of the first cross member 113a, the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected. As long as it is in contact with the cross member, engagement pin, etc. of the rear wheel side vehicle body 120 from above, below, and from the rear of the vehicle and opens obliquely downward toward the front of the vehicle, it is the same as described above even in other shapes Has the effect of.

Further, as described above, when the front wheel side frame 111 is provided with a recess opening upward instead of the second cross member 113b, the rear wheel side vehicle body 110 is connected when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected. Any other shape can be obtained as long as it is in contact with 120 cross members, engagement pins, etc. from below, the rear of the vehicle, and the front of the vehicle and opens upward.

In this embodiment, the locking member engaging portion 126f of the tilting member 126a is engaged with the cross member 124a so that the tilting of the tipping prevention member 126 is restricted from being tilted upward from the second tilting position. Indicated. On the other hand, a part between the other end portion of the tilting member 126a and the tilting center 126d is engaged with the rear wheel side cover 120a and the rear wheel side frame 121, thereby the second tilting position of the fall prevention member 126. Further upward tilting may be restricted. As long as the rear-wheel-side vehicle body 120 can be supported by the rear wheel 20 and the fall-preventing member 126, the tilting of the fall-preventing member 126 upward from the second tilt position may be restricted by another structure.

When the seat unit 40 is attached, the connection between the rear wheel side vehicle body 120 and the front wheel side vehicle body 110 is released, and the rear wheel side vehicle body 110 is tilted rearward so that the fall prevention member 126 is grounded. Further, the center of gravity of the entire rear wheel-side vehicle body 120 may be arranged between the grounding position of the rear wheel 20 and the grounding position of the auxiliary wheel 126b of the fall prevention member 126. In this case, it is possible to easily disassemble the rear wheel body 120 and the front wheel body 110 with the seat unit 40 attached. On the other hand, when the seat unit 40 is first attached to the rear wheel side vehicle body 120 and then the rear wheel side vehicle body 120 is attached to the front wheel side vehicle body 110, the operation can be facilitated.

DESCRIPTION OF SYMBOLS 10 Front wheel 20 Rear wheel 30 Mobility main body 31 Body 33 Seat support part 40 Seat unit 41 Seat surface part 42 Backrest part 43 Control arm 50 Motor 60 Control unit 110 Front wheel side vehicle body 111 Front wheel side frame 112 Side member 113a 1st cross member 113b Second cross member 120 Rear wheel side body 121 Rear wheel side frame 121a First recess 121b Second recess 122 Lower member 122a Side member 123

Motor fixing portions

124a, 124b, 124c Cross member 125 Support portion frame 125c Handle Part 126 Fall prevention member (protruding member)

126a Tilt member

126b Auxiliary wheel 127 Connection lock member 127b Inclined surface 128 Tilt lock member 128a Engagement pin 129 Link member 130 Operation lever BA Battery

Claims

The front wheel side body,
A rear wheel side vehicle body detachably connected to the front wheel side vehicle body,
When the rear wheel side vehicle body is detached from the front wheel side vehicle body and tilted to the rear of the vehicle, the vehicle becomes self-supporting.
The rear wheel side vehicle body is provided with a first engagement portion used for connection with the front wheel side vehicle body,
Electric mobility in which, when the rear wheel side vehicle body is in the self-standing state, a second engagement portion provided on the rear end side of the front wheel side vehicle body and used for the connection can be supported by the first engagement portion. .
A third engagement portion provided on the rear wheel side vehicle body and disposed on the vehicle front side with respect to the first engagement portion;
A fourth engagement portion that is provided on the front wheel side vehicle body, is disposed on the vehicle front side with respect to the second engagement portion, and engages with the third engagement portion during the connection;
The first engagement portion of the rear wheel side vehicle body in the self-supporting state includes a lower contact portion that contacts the second engagement portion of the front wheel side vehicle body from below, and the lower contact portion. The electric mobility according to claim 1, further comprising: a front abutting portion disposed on a front side of the vehicle and disposed at a position higher than the lower abutting portion.
An operating member provided on the rear wheel side vehicle body and operated to release the connection;
The electric mobility according to claim 1, further comprising a handle portion provided on the rear wheel side vehicle body so as to be disposed on the vehicle front side with respect to the rotation axis of the rear wheel.
After the first engagement portion is released from the connection between the front wheel side vehicle body and the rear wheel side vehicle body, until the rear wheel side vehicle body is tilted rearward and becomes the self-supporting state. The electric mobility according to any one of claims 1 to 3, wherein the two engaging portions are continuously supported from below.
An electric mobility disassembling method capable of removing a rear wheel side vehicle body from a front wheel side vehicle body,
Inclining the rear wheel side vehicle body around the rear wheel toward the rear of the vehicle until the rear wheel side vehicle body is in a self-supporting state with the rear end side of the front wheel side vehicle body supported by the rear wheel side vehicle body;
Removing the rear end side of the front wheel side vehicle body from the rear wheel side vehicle body after the rear wheel side vehicle body is in a self-supporting state;
Disassembling method of electric mobility having
The rear wheel side vehicle body includes an operation member that is operated to release the connection of the travelable mode between the front wheel side vehicle body and the rear wheel side vehicle body,
The electric mobility disassembling method according to claim 5, further comprising a step of operating the operation member to release the connection while applying a force toward the rear of the vehicle to the rear wheel side vehicle body.