JP2002002489A - Passenger electric cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly safe passenger electric cart easily driving while steering with a clutch disengaged. SOLUTION: This passenger electric cart is provided with a manual handle 2 for steering the driving direction in a front upper position of a vehicle body 1 driving electrically, a chair 4 having a backrest part 3 in the rear part of the vehicle body 1, a hand pushing handle 5 for a carer in a rear-side upper position of the chair 4, and a clutch operation part 7 disengaging the clutch 6 by the frontward pushing operation near the hand pushing handle 5. The clutch operation part 7 is elastically energized so as to automatically engage the clutch 7 in unoperated time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric riding cart in which a chair is provided at the rear of an electrically driven vehicle body and a push handle for an assistant is provided at an upper position on the rear side of the chair.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 9-294777, there is known an electric wheelchair which is driven by an occupant or is driven by an assistant. I have. In the electric wheelchair, as shown in FIG. 17, a chair 4 having a backrest 3 is provided on a vehicle body 1 that is driven electrically, and a push handle 5 for an assistant is provided at a rear upper position of the chair 4. Is provided.

In this case, front wheels 18 are provided on both sides of the front portion of the vehicle body 1.
Are provided, and driving rear wheels 12 are provided on both sides of the rear portion. A chair 4 is formed by the seat 13 and the backrest 3, and armrests 14 are provided on both sides of the chair 4.
A push handle 5 protruding rearward is provided on both upper ends of the backrest 3, and a crack lever 44 is attached to each of the push handles 5.

[0004] When the rear wheels 12 on both sides are rotated by the motor 10, the vehicle body 1 is electrically driven forward or backward. At this time, the rear wheels 12 on both sides are individually
The traveling direction of the vehicle body 1 is steered by the difference in the rotational speed of the rear wheels 12, and the front wheels 18 on both sides freely change the direction according to the steering. As described above, the operation of moving the vehicle body 1 back and forth and steering is performed by an occupant sitting on the chair 4 using the operation stick.
This is done by tilting the 43 back and forth and left and right.

When the assistant pushes the hand by hand, the assistant grasps the two-hand pushing handle 5 together with the clutch lever 44 attached to the lower side of the handle and pushes the clutch 6.
With the clutch 6 disengaged, the vehicle body 1 can be easily pushed with both hands without any load on the motor 10 to run. In this case, both clutch levers 44 are
The two clutch levers 44 are respectively connected to the two clutches 6 disposed in correspondence with 10 via an operation cable 37, and the two clutch levers 44 are gripped and operated together with the two-hand push handle 5.

[0006]

There is also known an electric riding cart provided with a manual handle for steering a traveling direction at a position above a front portion of a vehicle body which travels electrically. In the riding electric cart, the operation of steering the traveling direction of the vehicle body is performed by the occupant holding the manual handle and rotating, whereby the steering operation is performed by changing the direction of the front wheels. In this case, the occupant can steer the traveling direction by operating the steering wheel in the same manner as when driving a bicycle or a motorcycle, and can perform a delicate steering operation, which is easy to perform.

However, the clutch is disengaged when the caregiver pushes the vehicle by hand, and in this case, generally, an operation unit for engaging and disengaging the clutch is provided on the lower side inside the vehicle body. It was difficult to confirm the position of the clutch, and it was necessary to lean down to operate it, and the operability of the clutch was not good. In addition, if the vehicle is approaching a downhill while the clutch is disengaged, the vehicle cannot be stopped unless the operating section of the clutch is operated. In such a case, runaway may occur. Therefore, in the riding electric cart,
It has been considered to adopt a structure such as the push handle 5 and the clutch lever 44 shown in the above-mentioned conventional technology.

However, in this case, since the manual handle to be steered is provided at the front of the vehicle body, if the vehicle body is to be moved without the occupant, the manual handle at the front is manually moved. It is necessary to grip the rear push handle 5 together with the clutch lever 44 and operate the clutch 6 while holding the steering wheel, and it is extremely difficult especially when the clutch levers 44 are provided on both sides. It was a moving task. In addition, since the clutch lever 44 is attached to the lower side of the hand push handle 5 and is operated to be pulled up, the clutch lever 44 and the hand push handle 5 must be continuously held, and the operability of the clutch 6 is also difficult. Was produced.

SUMMARY OF THE INVENTION The present invention has been made to solve all the problems in the prior art described above. An object of the present invention is to make it possible to easily move and travel while steering with a manual handle with the clutch disengaged. In addition, the clutch automatically enters when the hand is released, preventing runaway and providing a highly safe riding electric cart.

[0010]

According to a first aspect of the present invention, there is provided a riding electric cart having a manual handle for steering a traveling direction at a position above a front portion of a vehicle body which travels electrically, and a rear handle at a rear portion of the vehicle body. A chair having a backrest portion, a push handle for a caregiver provided at a rear upper position of the chair, a clutch operating portion near the push handle to be disengaged by a forward push operation, and a clutch operating portion being provided; Is that the clutch is urged so that the clutch is automatically engaged when not operated.

Therefore, in this case, since a manual handle for steering the traveling direction is provided at a position above the front portion of the vehicle body which travels electrically, the occupant can operate the steering wheel in the same manner as when driving a bicycle or motorcycle. The traveling direction can be steered, and a delicate steering operation can be performed, and the driving is easy to perform. In addition, since the clutch operating section is provided near the hand push handle for the assistant provided at the upper rear side of the chair, when the assistant pushes by hand, the assistant operates the clutch operating section. Is operated to disengage the clutch, and the vehicle body can be easily run without a load on the motor in a state where the clutch is disengaged.

In addition, since the clutch is disengaged by pushing the clutch forward, the assistant pushes the clutch operating portion forward by the same force when the assistant is pushing the clutch by hand. While the clutch is disengaged, the vehicle body can easily travel forward. Further, at this time, even in a state where there is no occupant, pushing the rear clutch operating portion forward while steering the traveling direction by holding the front manual handle of the vehicle body, the vehicle body is moved. It can be easily moved forward.

Further, since the clutch operating portion is resiliently biased so that the clutch is automatically engaged when the clutch is not operated, the clutch is automatically engaged by the resiliently biasing force when the hand is released. Even if your hand is separated from the clutch operation part due to approaching a downhill, the vehicle body will automatically stop due to the load of the motor at that time, runaway is prevented and safety is high. is there.

According to a second aspect of the present invention, there is provided the riding electric cart according to the first aspect, wherein the backrest of the chair is pivotally supported so as to be tiltable forward, and the backrest is tilted forward. The upper part of the backrest is used as a clutch operating part so that the clutch can be disengaged in conjunction with.

Therefore, in this case, in particular, since the upper part of the pivoted backrest serves as the clutch operating part, the clutch operating part is pushed forward, and the backrest is tilted forward, whereby the backrest is tilted forward. The clutch is disengaged in conjunction with the forward tilting operation, and the vehicle body can be easily moved forward with the clutch disengaged.

According to a third aspect of the present invention, there is provided the electric riding cart according to the first aspect, wherein a clutch operating portion is provided on the push handle itself.

Therefore, in this case, particularly, since the clutch operating portion is provided on the hand pushing handle itself, the assistant pushes the clutch operating portion forward while holding the hand pushing handle by hand while pushing the clutch operating portion forward. The vehicle body can be easily moved forward in the cut state.

According to a fourth aspect of the present invention, there is provided an electric powered cart having a chair provided with a manual handle for steering a traveling direction at a position above a front portion of a vehicle body which travels electrically, and having a backrest at a rear portion of the vehicle body. A push handle for an assistant is provided at a rear upper position of the chair, and a clutch operating portion is provided on the push handle itself, the clutch operating portion being disengaged by a downward push operation. Was fired to enter automatically.

Therefore, in this case, since the manual handle for steering the traveling direction is provided at a position above the front part of the vehicle body which travels electrically, the occupant can operate the steering wheel in the same manner as when driving a bicycle or motorcycle. The traveling direction can be steered, and a delicate steering operation can be performed, and the driving is easy to perform. In addition, since the hand push handle for the helper provided at the rear upper position of the chair is provided with the clutch operating portion, when the helper pushes the hand by hand, the helper pushes the hand push handle. The clutch can be disengaged by operating the clutch operation section while holding it by hand, and the vehicle body can be easily run without load on the motor in a state where the clutch is disengaged.

In addition, since the clutch operating portion can be disengaged by pushing the clutch downward, the caregiver applies weight to move the clutch operating portion downward while holding the push handle by hand. , The vehicle body can be easily run with the clutch disengaged. Further, at this time, even in a state where there is no occupant, pushing the rear clutch operating portion downward while steering the traveling direction by holding the manual handle at the front of the vehicle body, the vehicle body is moved. It can be easily moved and run.

Since the clutch operating portion is resiliently biased so that the clutch is automatically engaged when the clutch is not operated, the clutch is automatically engaged by the resilient biasing force when the hand is released. Even if your hand is separated from the clutch operation part due to approaching a downhill, the vehicle body will automatically stop due to the load of the motor at that time, runaway is prevented and safety is high. is there.

According to a fifth aspect of the present invention, there is provided the riding electric cart according to the fourth aspect, further comprising a clutch operation restricting means for switching between a state in which the pushing operation of the clutch operating portion is possible and a state in which the pushing operation is not possible. It is characterized by having.

Therefore, in this case, in particular, since the clutch operation restricting means is provided for switching between the state in which the push operation of the clutch operating part is possible and the state in which the push operation of the clutch operation part is not possible, the push operation of the clutch operating part is performed by the clutch operation restricting means. By switching to the impossible state, it is possible to prevent the vehicle body from being carelessly operated due to an object hitting the clutch operation unit or erroneous operation of the clutch operation unit. it can.

According to a sixth aspect of the present invention, there is provided the riding electric cart according to the fourth or fifth aspect, further comprising detecting means for detecting a pressing operation of the clutch operating portion, and detecting the vehicle by the detecting means. Power supply to a motor for electrically driving the main body is stopped.

Therefore, in this case, in particular, when the detecting means detects the pressing operation of the clutch operating portion, the power supply to the motor for electrically driving the vehicle body is stopped, so that the clutch or the clutch and the clutch Even if the clutch is connected unexpectedly due to a failure of the operation transmission mechanism between the operation unit and the like, the motor is stopped, and the vehicle body does not suddenly jump out. Is also reduced.

[0026]

1 to 10 show an embodiment corresponding to claims 1 and 2 of the present invention. An electric riding cart according to this embodiment is located above a front portion of a vehicle body 1 which travels electrically. A manual handle 2 for steering the traveling direction is provided at a position, a chair 4 having a backrest 3 is provided at a rear portion of the vehicle body 1, and a push handle 5 for an assistant is provided at a rear upper position of the chair 4. A clutch operating section 7 is provided near the push handle 5 so that the clutch 6 is disengaged by a forward pushing operation. The clutch operating section 7 is elastically biased so that the clutch 6 is automatically engaged when the clutch 6 is not operated. It was done. In this case, the backrest 3 of the chair 4 is pivotally supported so as to be tiltable forward, and the upper part of the backrest 3 is engaged with the clutch operating portion 7 so that the clutch 6 is disengaged in conjunction with the forward tilting operation of the backrest 3. And that.

The vehicle body (chassis part) 1 contains a frame, a motor 10, a drive reduction gear, a suspension and the like, and an enlarged seating part 11 is formed at the rear part of the vehicle body 1. On both sides of the rear end of the seat 11, the motor
A rear wheel 12 driven and rotated by 10 is provided. Further, a chair 4 is provided on the seating portion 11, and the chair 4 is
And a backrest 3 erected at the rear end of the seat 13 so as to be tiltable.
And The backrest 3 is a pivot at the rear end of the seat 13.
An armrest 14 is provided on both sides of the backrest 3 so as to be freely rotatable via 3a. On the rear side of the chair 4, a gate-shaped hand-held member 15 is provided along the backrest 3, and the hand-held member 15 is attached to the vehicle body 1.
The upper part of the gate shape is the push handle 5.

A foot cover 16 is integrally erected at the front of the vehicle body 1, and a manual steering wheel 2 for steering is disposed on the foot cover 16. The manual handle 2 is erected at a front portion of the vehicle body 1 via a connection support mechanism or the like. In this case, the middle portion of the rear surface of the foot cover 16 is expanded rearward and formed. The connection support mechanism, electric wiring, and the like can be accommodated in the bent hollow interior. An operation unit such as an accelerator and a direction indicator is provided on the manual handle 2, and a passenger seated by the operation unit can easily drive.

Here, by operating the accelerator of the manual handle 2, electric power is supplied to the motor 10 using the battery installed inside the seating portion 11 as a power source, and the rear wheel 12 is driven via a speed reducer or the like to start. I do. By rotating the manual handle 2, the direction of the front wheel 18 can be changed via a link mechanism which is a part of the connection support mechanism, whereby steering in the traveling direction can be performed. Done. The rear wheel 12 and the front wheel 18 are disposed in pairs, and the same pair of front wheels 18 is held via a suspension mechanism that is a part of the connection support mechanism.

At the front of the vehicle main body 1 between the manual handle 2 and the front wheel 18, the foot cover 16 which can cover the front of the foot of a seated person is integrally provided upright.
The foot cover body 16 is formed of a synthetic resin, a thin metal plate, or the like, and is formed in a hollow shape. A box-shaped storage case 17 opened upward is fixedly integrated with the front surface of the foot cover body 16. In this case, the internal space of the storage case 17 is
The storage case 17 has a storage area space so that the storage case 17 does not protrude significantly forward. A lid that can be opened and closed is attached to the upper opening of the storage case 17.

A part of the drive unit 19 in which the motor 10, the drive reduction gear, and the like are built protrudes downward from the seating portion 11 of the vehicle body 1, and rear wheels 12 are arranged and connected on both sides of the protruded portion. ing. Here, the internal structure of the drive unit 19 will be described in detail with reference to FIG. The rotating shaft 20 of the motor 10 is coupling
The first driven gear 22 is connected to the first driven gear 23 via a screw 21, and the rotation of the first driven gear 23 is reduced and transmitted to the first driven gear 23. First driven gear 23
Is formed with a serration hole 24, through which rotational power is transmitted to a second drive gear 25 which is detachably coupled.

The second drive gear 25 rotatably held by the first driven gear 23 is slidably moved in the axial direction by a guide member 26. At this time, the guide member 26 is moved by the second drive gear 25 When the coupling through the serration hole 24 is released, the transmission of rotational power is stopped and the clutch 6 is disengaged. Further, the second drive gear 25 is elastically urged toward the first driven gear 23 side by the compression spring 28, whereby the clutch 6 is automatically returned to the engaged state and passes through the serration hole 24. The bond is normally kept.

A second driven gear 29 is screwed to the second drive gear 25, and the second driven gear 29 is connected to the second driven gear 29.
From 25, the rotation is reduced and transmitted. A differential gear unit 30 is fixed to the second driven gear 29, and rotational power is transmitted to the drive shafts 31 and 32 on both sides via the differential gear unit 30. At this time, the drive shafts 31 and 32 on both sides are connected to the planetary gears in the differential gear unit 30 and are driven to rotate at different appropriate rotational speeds, for example, when traveling on a curve. In FIG. 5, reference numeral 33 denotes an electromagnetic brake unit.
Can be fixed.

Next, the operation mechanism of the clutch 6 will be described in detail with reference to FIGS. The guide member 26 for turning on and off the clutch 6 is rotatably and slidably fitted to a camshaft 34, and a cam piece 35 is fixedly integrated with the camshaft 34. Here, as shown in FIG. 7, when the cam shaft 34 is rotated, the cam piece 35 is rotated and the guide member is rotated.
The guide member 26 slides along the camshaft 34 without rotating, and the coupling through the serration hole 24 is released by the guide member 26 so that the transmission of rotational power is stopped. As a result, the clutch 6 is disengaged. In this state, the rear wheels 12 attached to the drive shafts 31 and 32 on both sides are electrically disconnected from the motor 10 whose rotation is stopped by the electromagnetic brake unit 33, and the vehicle body 1
Becomes movable by external force. In the stopped state, the power supply to the electromagnetic brake unit 33 is turned off, and the motor is stopped.
The rotation of the ten rotation shafts 20 is forcibly fixed.

The camshaft 34 of the clutch 6 is rotated by operating the clutch operating section 7. In this case, an interlocking mechanism between the clutch operating section 7 and the clutch 6 is provided. This will be described in detail with reference to FIGS. An operation lever 36 is fixed to an end of the cam shaft 34. One end of an operation cable 37 is locked and connected to the operation lever 36, and the other end of the operation cable 37 is connected to a clutch operation unit described later. 7 is connected. Further, a tension spring 38 is coupled to the operation lever 36, and the tension spring 38 constantly urges the operation lever 36 in the returning direction.

In this case, when the operation cable 37 is pulled by the operation of the clutch operation section 7, the cam shaft 34 rotates together with the operation lever 36 against the elastic force of the tension spring 38. When the camshaft 34 is rotated, the coupling via the serration hole 24 is released by the guide member 26 as described above, and the transmission of rotational power is not performed, and the clutch 6 is disengaged. When the operation of the clutch operating section 7 is released, the cam shaft 34 rotates together with the operating lever 36 in the opposite direction by the elastic restoring force of the tension spring 38, whereby the clutch 6 is automatically turned on. It enters the state.

Next, the specific structure of the chair 4 serving as the clutch operating section 7 will be described in detail with reference to FIG. Chair 4
The backrest 3 is rotated about a pivotal support 3a at the lower end thereof.
39 is provided, and the other end of the operation cable 37 is locked and connected to the connecting portion 39. Further, a tension spring 38 is coupled to the backrest 3, and the tension spring 38 always moves the backrest 3 in the returning direction, that is,
It is to urge the body to automatically stand up.

In this case, when the backrest 3 is tilted forward against the elastic force of the tension spring 38, the operation cable 37 is pulled, and the camshaft 34 is rotated to disengage the clutch 6 as described above. It will be in the state that was done. In this case, the backrest 3 can be tilted lightly forward by pushing the rear upper end of the backrest 3 forward, and the rear upper end of the backrest 3 is used as the clutch operating section 7. . When the operation of the clutch operating unit 7 is released by releasing the hand from the backrest 3, the backrest 3 is erected by the elastic restoring force of the tension spring 38, whereby the clutch 6 is automatically turned on. It enters the state.

Therefore, in the riding electric cart of this embodiment, since the manual handle 2 for steering the traveling direction is provided at a position above the front part of the vehicle body 1, the rider can drive a bicycle or a motorcycle. The driving direction can be easily changed by a similar steering wheel turning operation, and a delicate steering operation can be performed, so that the driving can be easily performed. In addition, since the clutch operating portion 7 is provided near the hand push handle 5 for the caregiver provided at the rear upper position of the chair 4, when the caregiver runs by pushing by hand, By operating the clutch operating section 7, the clutch 6 is disengaged, and the vehicle body 1 can be easily run without a load on the motor 10 in a state where the clutch 6 is disengaged.

In addition, since the clutch 6 is disengaged by pushing the clutch operating section 7 forward, when the assistant pushes the clutch 6 by hand, the clutch operating section 7 travels forward.
While pushing and operating the clutch operation unit 7 to the same front,
With the clutch 6 disengaged, the vehicle body 1 can easily travel forward. Further, at this time, even when there is no occupant, the rear clutch operating section 7 is pushed forward while the steering direction is steered while holding the manual handle 2 at the front of the vehicle main body 1. The vehicle body 1 can be easily moved forward and run.

The clutch operating section 7 is resiliently urged by the compression spring 28, the tension spring 38 and the like so that the clutch 6 is automatically engaged when the clutch is not operated (always). If released, the clutch 6 is automatically engaged by the urging force, and even if the hand is separated from the clutch operation unit 7 when approaching a downhill, the motor 10 The vehicle body 1 automatically stops when a load is applied, preventing runaway and ensuring high safety.

Further, in the riding electric cart of this embodiment, since the rear end of the upper end of the backrest 3 pivotally supported by the seat 13 of the chair 4 serves as the clutch operating part 7, the clutch operating part 7 is pushed forward. By operating and tilting the backrest 3 forward, the clutch 6 is easily disengaged in conjunction with the forward tilting operation, and the vehicle body 1 travels easily forward with the clutch 6 disengaged. be able to.

FIGS. 11 and 12 show another embodiment corresponding to the first and third aspects of the present invention. In the riding electric cart of this embodiment, the clutch operating portion 7 is provided on the hand push handle 5 itself. . In this case as well, the gate-type hand-held fixture 15
The upper side portion becomes a push handle 5, and a clutch operating portion 7 is provided at the middle rear side of the push handle 5 so as to be engaged and held slidably in the front-rear direction.

Here, a coupling portion 39 is formed at a front end portion of the clutch operation portion 7, and the other end portion of the operation cable 37 in the above embodiment is locked and connected to the coupling portion 39. The clutch operating portion 7 is elastically urged rearward by a compression spring 28, and the operating cable 37 is pulled by pushing the clutch operating portion 7 forward against the elastic force of the compression spring 28. As a result, the clutch 6 is disengaged as in the above embodiment. Also, the clutch operating section 7
When the hand is released, the clutch operating portion 7 returns to the rear by the elastic restoring force of the compression spring 28, whereby the clutch 6 is automatically engaged.

Accordingly, in the riding electric cart according to the embodiment, the clutch operating section 7 is provided on the hand push handle 5 itself.
Is provided, the caregiver pushes the clutch operating portion 7 forward while holding the same push handle 5 with his hand, and pushes the clutch operating portion 7 forward, and the vehicle body 1 with the clutch 6 disengaged.
Can easily travel forward. Moreover, at this time, the clutch operating section 7 can be pushed forward by grasping the clutch operating section 7 together with the hand pushing handle 5, and
This operation for disengaging the clutch 6 is reliable and easy.
Except for this, the configuration is the same as that of the above-described embodiment, and the operation and effect other than those according to claim 2 are exerted as in the above-described embodiment.

FIGS. 13 and 14 show still another embodiment corresponding to claim 4 of the present invention. In the riding electric cart of this embodiment, the clutch 6 is pushed by the push handle 5 itself. A disengaged clutch operation unit 7 is provided. Also in this case, the upper side portion of the gate-shaped hand-held fixed body 15 becomes the hand-held handle 5, and the clutch operating portion 7 is provided so as to be engaged and held slidably in the vertical direction in the middle upper side of the hand-held handle 5. I have.

Here, a coupling portion 39 is formed at the front lower end portion of the clutch operation portion 7, and the other end portion of the operation cable 37 in the above embodiment is locked and connected to the coupling portion 39.
The clutch operating portion 7 is elastically urged upward by a compression spring 28, and the operation cable 37 is pulled by pushing the clutch operating portion 7 downward against the elastic force of the compression spring 28. As a result, the clutch 6 is disengaged as in the above embodiment. When the user releases the clutch operating unit 7, the clutch operating unit 7 returns upward by the elastic restoring force of the compression spring 28, and the clutch 6 is automatically engaged.

Therefore, in the riding electric cart of this embodiment, the clutch 6 is disengaged by pushing the clutch operating section 7 downward, so that the caregiver can carry the hand-push handle 5 by hand. The user can continue pushing the clutch operating portion 7 downward while applying weight, and the vehicle body 1 can be easily moved in the front-rear direction with the clutch 6 disengaged. Further, at this time, even when there is no occupant, the rear clutch operating section 7 is pushed downward while holding the manual handle 2 at the front of the vehicle body 1 and steering in the traveling direction. The vehicle body 1 can be easily moved and run. Other than that,
The configuration is the same as that of the embodiment shown in FIGS. 11 and 12, and the same operation and effect as in the above-described embodiment are exerted.

FIG. 15 shows still another embodiment corresponding to claims 4 and 5 of the present invention. In the riding electric cart of this embodiment, the state in which the pushing operation of the clutch operating section 7 is possible and the state in which the pushing operation is impossible are not possible. And a clutch operation restricting means 8 for switching between the normal state and the normal state. The clutch operation restricting means 8 includes a pin member 40.
And a compression spring 28 externally fitted to the pin member 40. In this case, the pin member
40 is engaged and held slidably in the front-rear direction,
The spring 40 is always urged forward by the compression spring 28.

Here, when the clutch 6 is disengaged by pushing the clutch operating portion 7, the head 41 of the pin member 40 is gripped and pulled out rearward, and is engaged with the lower rear edge of the clutch operating portion 7. By removing the leading end 42 of the pin member 40, the clutch operating portion 7 can be pushed. When the clutch operating portion 7 is released, the clutch operating portion 7 is returned upward by the elastic restoring force of the compression spring 28, and the distal end portion 42 of the pin member 40 is moved rearward of the clutch operating portion 7. As a result, the clutch 6 is automatically engaged, and the clutch operating portion 7 cannot be pushed.

Therefore, in the riding electric cart according to this embodiment, the clutch operation restricting means 8 for switching between the state where the push operation of the clutch operation part 7 is possible and the state where the push operation is not possible.
Since the clutch operation restricting means 8 switches to a state in which the push operation of the clutch operation unit 7 is impossible, an object always hits the clutch operation unit 7 or the clutch operation unit 7 It is possible to prevent the vehicle body 1 from being inadvertently operated due to accidental operation. Except for this, the configuration is the same as that of the embodiment shown in FIGS. 13 and 14, and the same operation and effect as in the above-described embodiment are exerted.

FIG. 16 shows still another embodiment corresponding to claims 4 and 6 of the present invention. In the riding electric cart of this embodiment, the detecting means 9 for detecting the pressing operation of the clutch operating section 7 is provided. The power supply to the motor 10 for electrically driving the vehicle body 1 is stopped by the detection of the detection means 9. In this case, the detecting means 9 is a micro switch, and when the clutch operating portion 7 is pushed in, the lower end of the rear side of the clutch operating portion 7 abuts, whereby the pushing operation is detected. It is.
Further, a hall element, a photo interrupter, or the like may be employed as the detection unit 9.

Accordingly, in the riding electric cart of this embodiment, when the detecting means 9 detects the pushing operation of the clutch operating portion 7, the power supply to the motor 10 for electrically driving the vehicle body 1 is stopped. Therefore, even if the clutch 6 is accidentally connected due to a failure of the clutch 6 or an operation transmission mechanism (the operation cable 37 or the like) between the clutch 6 and the clutch operation section 7, the motor 10 is stopped. Therefore, the vehicle body 1 does not suddenly jump out, and at this time, the amount of power is also reduced. Other than that,
The configuration is the same as that of the embodiment shown in FIGS. 13 and 14, and the same operation and effect as in the above embodiment are exerted. Further, in the riding electric cart of this embodiment, the same configuration (clutch operation restricting means 8) as in the embodiment shown in FIG. 15 may be employed.

[0054]

As described above, in the electric cart according to the first aspect of the present invention, the vehicle body can be easily moved forward in the state where the clutch is disengaged while the assistant pushes the clutch operating portion forward. Even if there is no occupant, the vehicle body can be easily moved forward by pushing the clutch operating part forward while steering with the manual handle, and If you let go of the hand, the clutch automatically enters, preventing runaway and ensuring high safety.

In the electric cart according to the second aspect of the present invention, in particular, when the clutch operating portion is pushed forward, the backrest portion is tilted forward, and the clutch is disengaged in conjunction with the forward tilting operation. Thus, the vehicle body can be easily run with the clutch disengaged.

In the electric cart according to the third aspect of the present invention, in particular, the caregiver holds the hand-push handle by hand while pushing the clutch operating portion forward, and the clutch is disengaged. The main body can be run easily.

In the electric cart according to the fourth aspect of the present invention, the caregiver can push down the clutch operating portion while holding the hand push handle to release the clutch, and the clutch is released. The vehicle body can be easily moved in this state, and even when there is no occupant, the vehicle body can be easily moved and driven by pushing down the clutch operating part while steering with the manual handle. If you release your hand, the clutch will automatically enter, preventing runaway and ensuring high safety.

Further, in the riding electric cart according to the fifth aspect of the present invention, in particular, the vehicle body is inadvertently operated by setting the clutch operation restricting means so that the clutch operation portion cannot be pushed. Can be prevented.

Further, in the riding electric cart according to the sixth aspect of the present invention, power supply to the motor is stopped particularly when the clutch operating portion is being pushed.
Even if the clutch is connected unexpectedly, the motor is stopped, so that the vehicle body does not suddenly jump out and the amount of power is reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an operating state of a riding electric cart according to an embodiment of the present invention.

FIG. 2 is an overall perspective view showing the electric cart for riding;

FIG. 3 is an overall side view showing the electric cart for riding;

FIG. 4 is an overall rear view showing the electric cart for riding;

FIG. 5 is an essential part cross-sectional view showing a drive unit in the electric cart for riding;

6 (a) is a front view, FIG. 6 (b) is a side view, and FIG. 6 (c) is a bottom view showing a main part of the clutch in the electric cart for riding.

FIG. 7 is an essential part front view showing the operating state of the clutch.

FIG. 8 is an external front view showing a driving unit of the electric cart for riding the same.

FIG. 9 is an external side view showing a drive unit of the electric cart for riding the same.

FIG. 10 is an essential part cross-sectional view showing a chair in the electric cart for riding;

FIG. 11 is an essential part perspective view showing a riding electric cart according to another embodiment.

FIG. 12 is an essential part cross-sectional view showing the electric cart for riding;

FIG. 13 is an essential part perspective view showing a riding electric cart according to still another embodiment.

FIG. 14 is an essential part cross-sectional view showing the electric cart for riding;

FIG. 15 is an essential part cross-sectional view showing a riding electric cart according to still another embodiment.

FIG. 16 is an essential part cross-sectional view showing a riding electric cart according to still another embodiment.

FIG. 17 is an overall perspective view showing a conventional electric wheelchair.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle main body 2 Manual handle 3 Backrest part 4 Chair 5 Handwheel 6 Clutch 7 Clutch operation part 8 Clutch operation restricting means 9 Detecting means 10 Motor

Claims (6)

[Claims] 1. A manually-operated steering wheel for steering the traveling direction is provided at a position above a front portion of a vehicle body which travels electrically, and a chair having a backrest portion is provided at a rear portion of the vehicle body. A hand push handle for a person is provided, and a clutch operating portion is provided near the hand push handle, the clutch operating portion being disengaged by a forward push operation, and the clutch operating portion is elastically biased so that the clutch is automatically engaged when the clutch is not operated. A passenger electric cart that has been replaced. 2. A backrest portion of a chair is pivotally supported so as to be tiltable forward, and an upper portion of the backrest portion is formed as a clutch operating portion so that a clutch is disengaged in conjunction with a forward tilting operation of the backrest portion. The riding electric cart according to claim 1, wherein: 3. The riding electric cart according to claim 1, wherein a clutch operating portion is provided on the push handle itself. 4. A manual handle for steering the traveling direction is provided at a position above a front portion of a vehicle body that travels electrically, a chair having a backrest portion is provided at a rear portion of the vehicle body, and an assist is provided at a rear upper position of the chair. A push handle is provided for the user, and the push handle itself is provided with a clutch operating portion that is disengaged by a downward push operation, and the clutch operating portion is elastically biased so that the clutch is automatically engaged when the clutch is not operated. A passenger electric cart that has been replaced. 5. The riding electric cart according to claim 4, further comprising clutch operation restricting means for switching between a state in which the push operation of the clutch operation section is possible and a state in which the push operation is not possible. 6. A power supply to a motor for electrically driving a vehicle body by detecting a pressing operation of a clutch operating portion, the power supply being stopped by the detection of the detecting device. Item 7. An electric cart for riding according to item 4 or 5.