JP2018154201A - Electric mobility and disassembly method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric mobility which can stably support a rear wheel side vehicle body with a protruding member protruding more than a rear wheel and the rear wheel after the rear wheel side vehicle body is removed from a front wheel side vehicle body and enables improvement of design flexibility of the rear wheel side vehicle body, and to provide a disassembly method of the electric mobility.SOLUTION: An electric mobility includes: a front wheel side vehicle body 110; a rear wheel side vehicle body 120 removably connected to the front wheel side vehicle body 110; a protruding member 126 which can tilt in a vertical direction with one end side supported by the rear wheel side vehicle body 120 and in which the other end part protrudes to the vehicle rear side further than outer peripheral surfaces of a pair of vehicle width direction rear wheels 20 provided at the rear wheel side vehicle body 120; a tilt lock member 128 which restricts tilting of the protruding member so as to prevent the protruding member from tiling to an area above a first tilt position; a cross member 124a which restricts tilting of the protruding member so as to prevent the protruding member from tiling to an area above a second tilt position which is above the first tilt position; and operation means which can release tilting restriction by the tilt lock member 128.SELECTED DRAWING: Figure 6

Description

  The present invention relates to electric mobility and a method for disassembling the same.

  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, and the rear wheel side vehicle body rotates around the axis of the rear wheel as a single unit and has a rearward tilt posture. And a projecting member (auxiliary wheel) projecting rearward from the rear wheel, and when removed from the front wheel side vehicle body, the rear wheel side vehicle body tilts rearward and the projecting member What is supported by a rear wheel is known (for example, refer to 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 when the rear wheel side vehicle body is removed from the front wheel side vehicle body, electric mobility is known in which the rear wheel side vehicle body is tilted rearward and supported by the protruding member and the rear wheel (see, for example, Patent Document 2).

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

  Since the two electric mobility cannot stably support the rear vehicle body by the protruding member and the rear wheel unless the center of gravity of the rear wheel side vehicle body is arranged behind the rotation axis of the rear wheel. The degree of freedom in designing the rear wheel side vehicle body is reduced.

  The present invention has been made in view of such circumstances, and after removing the rear wheel side vehicle body from the front wheel side vehicle body, the rear wheel side vehicle body is formed by a projecting member and a rear wheel protruding from the rear wheel. An object of the present invention is to provide an electric mobility that can be stably supported and that can improve the degree of freedom in designing the rear wheel side vehicle body and a method for disassembling the mobility.

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, a rear wheel side vehicle body that is detachably connected to the front wheel side vehicle body, and one end side supported by the rear wheel side vehicle body so that it can tilt in the vertical direction. A projecting member having the other end projecting forward or rearward from the outer peripheral surface of the rear wheel provided on the rear wheel side vehicle body and the projecting so as not to tilt upward from the first tilting position. A first restricting means for restricting the tilting of the member, and a second restricting means for restricting the tilt of the protruding member so as not to tilt upward from a second tilt position that is higher than the first tilt position. And an operation means capable of releasing the tilt restriction by the first restriction means.

In this aspect, when the tilt restriction by the first restricting means is released by the operating means, the projecting member is tilted to the second tilt position above the first tilt position, and the second restricting means is at that position. Therefore, the upward tilt is restricted.
For example, in a state where the tilting restriction is performed by the first restricting means, the other end portion of the protruding member is positioned near the ground behind the vehicle rather than the rear wheel in a state where the rear wheel side vehicle body is connected to the front wheel side vehicle body. When the center of gravity of the rear wheel side vehicle body is located in front of the vehicle with respect to the rotation axis of the rear wheel, the position of the center of gravity is the same as the grounding portion of the rear wheel even if the other end of the protruding member is grounded. Since it is not disposed between the other end of the projecting member, the rear wheel side vehicle body cannot be stably supported by the rear wheel and the projecting member.

  On the other hand, in this aspect, when the projecting member is tilted to the second tilt position above the first tilt position by the operating means and the other end of the projecting member is grounded, the center of gravity of the rear wheel side vehicle body is increased. The position moves to the rear of the vehicle. For example, the position of the center of gravity is disposed between the ground contact portion of the rear wheel and the other end of the protruding member, and the rear wheel side vehicle body can be supported by the rear wheel and the protruding member. . With the rear wheel side vehicle body connected to the front wheel side vehicle body, the other end of the projecting member is located near the ground in front of the vehicle relative to the rear wheel, and the center of gravity of the rear wheel side vehicle body is closer to the vehicle front than the rear wheel. The same applies to the case of being near the ground.

  In the above aspect, the connection lock member is provided on the rear wheel side vehicle body and is movable to a lock position for maintaining the connection between the front wheel side vehicle body and the rear wheel side vehicle body and to a retracted position for releasing the connection. The connection lock member is moved from the lock position to the retracted position when the operation means is operated, and the connection lock member is moved from the lock position to the retracted position by operation of the operation means. It is preferable that the tilting restriction by the first restricting means is released when moving to the position.

  In this case, when the connection lock member is moved to the retracted position by the operating means and the connection lock between the front wheel side vehicle body and the rear wheel side vehicle body is released, the tilt restriction by the first restriction means is released, and the protruding member is Tilt to a second tilt position above the first tilt position, and tilting upward is regulated by the second restricting means at that position. For this reason, when the connection release operation is performed, the rear wheel side vehicle body can be supported by the rear wheel and the protruding member, which is advantageous in facilitating the connection release operation.

  In the above aspect, the first restricting means is a tilt lock member that engages the projecting member at the first tilt position to perform the tilt control, and the retracted position from the lock position of the coupling lock member. It is preferable to further include a link mechanism that interlocks the movement of the tilt lock member with the movement of the tilt lock member from the position where the tilt lock member is engaged to the position where the engagement is released.

  In this case, if one of the connection lock member and the tilt lock member is tilted, the other is also tilted by the link mechanism, so that when the connection release operation is performed, the tilt restriction by the first restricting means is released in conjunction with each other, and The rear wheel side vehicle body can be reliably supported by the rear wheel and the protruding member.

In the above aspect, it is preferable that the protruding member is configured to prevent the electric mobility from falling backward when the protruding member is disposed at the first tilt position.
In this case, the rear wheel side vehicle body can be stably supported after the connection with the front wheel side vehicle body is released by using the protruding member that prevents the electric mobility from falling backward. There is no need to provide a dedicated member for supporting.

  In the above aspect, the operation means is a tiltable operation lever provided in the rear wheel side vehicle body, and one of the connection lock member and the tilt lock member is operated by the tilt of the operation lever, and the other is It is preferable to be configured to be operated via the link mechanism.

  In this case, by confirming the tilt state of the operation lever, the tilt restriction state by the first restricting means and the lock state by the connecting lock member can be physically confirmed. Unreasonable operations such as tilting the rear wheel side vehicle body in a state where the regulation and the lock by the connecting lock member are not released are prevented. Further, when the front wheel side vehicle body and the rear wheel side vehicle body are connected, the state of tilting restriction by the first restricting means and the state of locking by the connecting lock member can be physically confirmed.

  In the above aspect, the first tilt position or the third tilt position that is lower than the first tilt position is contacted with a predetermined frame that constitutes the rear wheel side vehicle body. It is preferable that the tilting of the projecting member is restricted and the tilting of the projecting member above the second tilting position is regulated by contacting the predetermined frame.

  In this case, in a state where the upward tilt is restricted by the first restricting means, the downward tilt of the protruding member is restricted by the predetermined frame, the restriction of the tilting by the first restricting means is released, and the protruding member Even when tilted to the second tilt position, the upward tilt of the protruding member is restricted by the same frame. For this reason, the structure for controlling the tilting of the projecting member can be simplified, which is advantageous in electric mobility where there is a strong demand for weight reduction and design space is limited.

  A second aspect of the present invention is an electric mobility disassembling method in which a rear wheel side vehicle body can be detached from a front wheel side vehicle body, wherein the rear wheel side vehicle body is supported at one end side by the rear wheel side vehicle body in the vertical direction. And a projecting member having the other end projecting forward or rearward from the outer peripheral surface of the rear wheel provided on the rear wheel side vehicle body, and not tilting upward from the first tilt position. And a first restricting means for restricting the tilting of the protruding member, and releasing the tilting restriction by the first restricting means so that the projecting member is positioned above the first tilting position. A step of tilting to a tilt position of 2, and a step of grounding the other end portion of the projecting member disposed at the second tilt position and supporting the rear wheel side vehicle body by the other end portion and the rear wheel. And have.

  For example, in a state where the tilting restriction is performed by the first restricting means, the other end portion of the protruding member is positioned near the ground behind the vehicle rather than the rear wheel in a state where the rear wheel side vehicle body is connected to the front wheel side vehicle body. When the center of gravity of the rear wheel side vehicle body is located in front of the vehicle with respect to the rotation axis of the rear wheel, the position of the center of gravity is the same as the grounding portion of the rear wheel even if the other end of the protruding member is grounded. Since it is not disposed between the other end of the projecting member, the rear wheel side vehicle body cannot be stably supported by the rear wheel and the projecting member.

  On the other hand, in this aspect, when the projecting member is tilted to the second tilt position above the first tilt position and the other end of the projecting member is grounded, the position of the center of gravity of the rear wheel side vehicle body is the vehicle. For example, the position of the center of gravity is disposed between the ground contact portion of the rear wheel and the other end of the protruding member, and the rear wheel side vehicle body can be supported by the rear wheel and the protruding member. With the rear wheel side vehicle body connected to the front wheel side vehicle body, the other end of the protruding member is located near the ground in front of the vehicle relative to the rear wheel, and the center of gravity of the rear wheel side vehicle body is from the rotation axis of the rear wheel. The same applies to the case where the vehicle is located near the ground in front of the vehicle.

  According to the present invention, after the rear wheel side vehicle body is removed from the front wheel side vehicle body, the rear wheel side vehicle body can be stably supported by the projecting member and the rear wheel projecting from the rear wheel. The degree of freedom in designing the side body can be improved.

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.
As shown in FIGS. 1 to 3, the electric mobility includes a mobility main body 30 having a pair of front wheels 10, a pair of rear wheels 20, and a body 31 supported by the front wheels 10 and the rear wheels 20, and the mobility main body 30. The seat unit 40 is detachably attached, and the motor 50 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. 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. 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 coupled 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, a first cross member (first front engaging portion) 113a is provided at a rear end portion of the pair of side members 112, and a second cross member (second front side engaging portion) is provided. The joint portion 113b is disposed on the vehicle front side with respect 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 that fix 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).

  In addition, the rear wheel side frame 121 is provided with a pair of width direction fall prevention members (protrusion 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. One end side of the fall prevention member 126 is supported by the rear wheel side frame 121 and can be tilted in the vertical direction, and the auxiliary wheel 126b 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 in 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.

  As shown in FIGS. 1 and 2, the seat support portion 33 includes 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 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 in the vertical direction, and a plurality of positioning holes 32a are provided at intervals 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 FIG. 4 to FIG. 6, each side member 122 a of the rear wheel side frame 121 has a substantially U-shaped first recess (first rear engagement portion) that opens toward the front of the vehicle. ) 121a is formed, and a substantially U-shaped second recess (second rear engagement portion) 121b that is disposed in front of the vehicle relative to the first recess 121a and opens downward is formed. ing. 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.

  Subsequently, as shown in FIGS. 8 and 9, when the rear wheel side vehicle body 120 is tilted toward the front of the vehicle around the rotation axis 20 a of the rear wheel 20, the second cross member 113 b of the front wheel side frame 111 is paired with a pair. It enters the second recess 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. Note that the backward movement of the first cross member 113a relative to the rear wheel side 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 supported at one end by a pair of side members 122a, a plurality of cross members 124a to 124c, a support portion frame 125, and the like in the vehicle width direction. A connecting lock member 127 that tilts around the extending tilt axis 127c is provided. 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 is tilted rearward. 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.

  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.

  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.

  Each tilt lock member 128 is supported by the rear wheel side frame 121 at the center, and can tilt about 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. 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. . With 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, and the connection lock member 127 is disposed at the retracted position B. In this state, the engagement between the engagement pin 128a and the lock member engagement portion 126f is released.

  One end of an operation lever 130 as an operation means is connected to the other end side of the tilt lock member 128, 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.

  When the rear wheel side vehicle body 120 is tilted rearward around the axle of the rear wheel 20 in this state, the auxiliary wheel 126b which is the other end portion of the fall prevention member 126 is grounded, and the rear wheel side vehicle body 120 is further moved to the rear wheel 20. When the vehicle is tilted rearwardly around the axle, the lock member engaging portion 126f of the fall prevention member 126 is engaged with the cross member 124a at the second tilt position, and the upward tilt of the fall prevention member 126 is restricted. The

  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, each first recess 121a is opened obliquely upward, so that the first cross member 113a of the front wheel side vehicle body 110 is stably in the first recess 121a. Supported. 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. As a result, the front wheel side vehicle body 10 is supported by the first recess 121a and the front wheel 110.

  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 restriction of the tilt 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. At this position, 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 release operation of the connection is performed, the rear wheel side vehicle body 120 can be stably supported by the rear wheel 20 and the fall prevention member 126, which is advantageous in facilitating the release operation of the connection. is there.

  Further, when the tilt lock member 128 is tilted, the connection lock member 127 is also tilted by the link member 129. Therefore, when the connection release operation is performed, the tilt restriction by the tilt lock member 128 is released in conjunction with it, and the rear is easily and reliably performed. The wheel-side vehicle body 120 can be stably supported by the rear wheel 20 and the fall-preventing member 126. 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 tilting is restricted by the tilting lock member 128, the downward tilting of the fall prevention member 126 is restricted by the cross member 124 a of the rear wheel side frame 121, and the tilting restriction by the tilting lock member 128 is restricted. Even when the fall prevention member 126 is released and tilted to the second tilt position, the upward tilt of the fall 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 tilt lock member 128 and the connection lock member 127 are tilted by the operation lever 130. For example, the drive shaft of the speed reducer is connected to at least one of the tilt lock member 128 and the connection 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 based on the lock release signal or the lock signal received by the control device 80.

  In the present embodiment, the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are disassembled after the seat unit 40 is detached from the mobility main body 30. On the other hand, it is 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 position of the rear wheel side vehicle body 120 is positioned behind the vehicle with respect to the rotation axis of the rear wheel 20, the tipping prevention member 126 tilts upward from the first tilt position. On the other hand, it is also possible to provide a protruding member that protrudes further forward of the vehicle than the rear wheel side vehicle body 120.

  In this case, one end of the fall prevention member 126 is supported by the rear wheel side vehicle body 120 and can be tilted in the vertical direction. In the connected state of the front wheel side vehicle body 110 and the rear wheel side vehicle body 120, the fall prevention member 126 is, for example, It is arranged at the first tilt position so as to extend in the longitudinal direction of the vehicle, and 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 first tilt position above the first tilt position. It is possible to tilt to the tilt position of 2. Accordingly, when the rear wheel side vehicle body 120 is supported by the other end portion of the fall prevention member 126 and the rear wheel 20, the position of the center of gravity of the rear wheel side vehicle body 120 moves to the front 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 the present embodiment, the rear wheel side frame 121 is provided with a substantially U-shaped first recess 121a and a second recess 121b. 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 there is any other shape, the same effect as described above can be obtained, and the second recess 121b is also located above the cross member 113a and connected to the rear of the vehicle when the front wheel side vehicle body 110 and the rear wheel side vehicle body 120 are connected. As long as it is abutted from the front of the vehicle and opens downward, the same effects as described above can be obtained even with other shapes.

  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.

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 (first restricting means)
127b Inclined surface 128 Tilt lock member 128a Engaging pin 129 Link member 130 Operation lever BA Battery

Claims (7)

The front wheel side body,
A rear wheel side vehicle body detachably coupled to the front wheel side vehicle body,
A projecting member that is supported at one end by the rear wheel side vehicle body and can tilt in the vertical direction, and has the other end projecting forward or rearward from the outer peripheral surface of the rear wheel provided on the rear wheel side vehicle body; ,
First restricting means for restricting the tilting of the protruding member so as not to tilt upward from the first tilting position;
A second restricting means for restricting the tilting of the projecting member so as not to tilt upward from a second tilting position that is above the first tilting position;
Operating means capable of releasing the tilt restriction by the first restricting means;
Electric mobility with A locking position that is provided on the rear wheel side vehicle body and is movable to a lock position for maintaining the connection between the front wheel side vehicle body and the rear wheel side vehicle body and a retracted position for releasing the connection;
When the operation means is operated, the connecting lock member is configured to move from the lock position to the retracted position,
2. The electric motor according to claim 1, wherein when the connection lock member is moved from the lock position to the retracted position by an operation of the operation means, the tilt restriction by the first restriction means is released. Mobility. The first restricting means is a tilt lock member that engages with the protruding member at the first tilt position and performs the tilt restriction,
A link mechanism that interlocks the movement of the coupling lock member from the lock position to the retracted position and the movement of the tilt lock member from a position engaging with the protruding member to a position where the engagement is released; The electric mobility according to claim 2.   The electric mobility according to any one of claims 1 to 3, wherein the protruding member prevents the electric mobility from falling backward when the protruding member is disposed at the first tilt position. The operating means is a tiltable operating lever provided on the rear wheel side vehicle body,
4. The electric mobility according to claim 3, wherein one of the coupling lock member and the tilt lock member is operated by tilting of the operation lever, and the other is operated via the link mechanism. 5.   Tilt of the projecting member below the first tilt position or the third tilt position, which is below the first tilt position, by contacting a predetermined frame constituting the rear wheel side vehicle body The electric mobility according to any one of claims 1 to 5, wherein the tilting of the projecting member is restricted above the second tilting position by being restricted and contacting the predetermined frame. An electric mobility disassembling method capable of removing a rear wheel side vehicle body from a front wheel side vehicle body,
The rear wheel side vehicle body is supported at one end side by the rear wheel side vehicle body and can be tilted in the vertical direction, and the other end portion of the rear wheel side vehicle body from the outer peripheral surface of the rear wheel provided on the rear wheel side vehicle body is front or rear of the vehicle. And a first regulating means for regulating the tilt of the projecting member so as not to tilt upward from the first tilt position,
Releasing the tilt restriction by the first restricting means and tilting the projecting member to a second tilt position above the first tilt position;
Grounding the other end of the projecting member disposed at the second tilt position, and supporting the rear wheel side vehicle body by the other end and the rear wheel;
Disassembling method of electric mobility having

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