JP2015070991A - Electric mobility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric mobility whose operability in manipulation is high and by which seating on a table or the like is easy.SOLUTION: An electric mobility includes a pair of handles 7a and 7b attached to a vehicle body frame so as to be swingable around a swing shaft that extends in the vehicle width direction, and arranged on both right and left sides of an operator seated on a seat. The pair of handles 7a and 7b include a pair of operation parts 11a and 11b arranged in front of the operator in manipulation which are operated by the operator's right and left hands, a pair of telescopic mechanisms which can adjust the distance of the operation parts 11a and 11b with respect to the swing shaft, and a pair of interval adjusting mechanisms to move the operation parts 11a and 11b so as to increase a distance between them.

Description

  The present invention relates to electric mobility.

Conventionally, an electric wheelchair provided with a handle-type control device is known (for example, refer to Patent Document 1).
The handle type steering device provided in the electric wheelchair of Patent Document 1 is disposed so as to be integrated with a pair of armrests disposed on the left and right sides of the driver so as to surround the front of the driver. The handle-type control device is rotatable in the horizontal direction with the tip of one armrest as a rotation fulcrum. The operator of the electric wheelchair of Patent Document 1 gets on and off with the handle-type control device rotated forward.

JP 2005-328879 A

However, since the electric wheelchair of Patent Document 1 needs to turn the handle-type control device forward when getting on and off, there is an obstacle ahead of the electric wheelchair that is the rotation range of the handle-type control device. If so, the pilot cannot easily get on and off.
Moreover, in the electric wheelchair of Patent Document 1, the handle-type control device that rotates forward when the operator gets on and off gets in the way of pedestrians around it.
Furthermore, since the electric wheelchair of Patent Document 1 has a fixed vertical position of the handle-type control device, when the operator sits on the table while riding the electric wheelchair, the handle-type control device becomes an obstacle, and the operator Cannot sit at the table.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide electric mobility that has high operability during maneuvering and can easily be seated on a table or the like.

In order to achieve the above object, the present invention provides the following means.
The electric mobility according to the present invention is arranged at intervals in the traveling direction, and supports at least one of the rear wheels and front wheels, which are electrically driven wheels, and the front wheels and the rear wheels so as to be rotatable around each axle. Swing around a body frame, a seat attached to the body frame and positioned above the position between the front wheel and the rear wheel and close to the rear wheel, and a swing shaft extending in the vehicle width direction And a pair of handles disposed on the left and right sides of the pilot seated on the seat, and the pair of handles are disposed in front of the pilot during the maneuvering. A pair of operation parts operated by the left and right hands, a pair of expansion / contraction mechanisms capable of adjusting the distance of the operation part with respect to the swing shaft, and a pair of distance adjustments that move to increase the distance between the operation parts Mechanism and Provided.

  According to the present electric mobility, the operator can reduce the distance between the operation units by the distance adjusting mechanism provided on the handle while being seated on the seat, so that the pair of pilots disposed at the position where it is easy to operate in front of itself. The operating unit can be operated to drive and steer the drive wheels.

On the other hand, the operator can retract the operation portion toward the swing shaft so as not to contact the table or the like by contracting the handle by the telescopic mechanism while sitting on the seat. In addition, the operator can operate the interval adjusting mechanism to increase the distance between the operation units so that the operation unit does not come into contact with his / her body.
Thereby, the operability at the time of maneuvering can be provided, and the electric mobility which can be easily seated on a table etc. can be provided.

In the electric mobility according to the first aspect of the present invention, the pair of distance adjusting mechanisms move the distance between the operation portions to be widened when the operation portions are brought closer to the swing shaft by the extension / contraction mechanism.
According to the electric mobility of this aspect, the operator can reduce the distance between the operation units by operating the interval adjusting mechanism by extending the handle by the extension / contraction mechanism provided on the handle while being seated on the seat. . As a result, the drive wheels can be driven and steered by operating a pair of operation units arranged at positions that are easy to operate in front of themselves.

  On the other hand, the operator can widen the distance between the operation units by operating the interval adjusting mechanism by contracting the handle by the expansion / contraction mechanism provided on the handle while being seated on the seat. Accordingly, the operation unit can be retracted toward the swing shaft so as not to contact the table or the like, and the operation unit can be prevented from contacting the body.

  The electric mobility according to the first aspect of the present invention includes a handle base to which the telescopic mechanism is attached so as to be swingable about the swing shaft, and a handle extension that is movable in the length direction of the handle with respect to the handle base. The distance adjusting mechanism includes a handle swinging portion swingably attached to the handle extension portion, and a protrusion is provided on one of the handle base portion and the handle swinging portion. A groove that engages with the protrusion is provided on the other of the handle base and the handle swinging portion, and when the operating portion is brought close to the swinging shaft, the protrusion and the groove are A configuration may be adopted in which the handle swinging portion is guided to swing to widen the distance between the operation portions.

  According to the electric mobility of this configuration, the operator extends the handle extension portion with respect to the handle base portion while sitting on the seat, and moves the position of the projection portion that engages with the groove portion to increase the distance between the operation portions. The handle swinging part is swung so as to be narrowed. As a result, the drive wheels can be driven and steered by operating a pair of operation units arranged at positions that are easy to operate in front of themselves.

  On the other hand, the operator can retract the operation portion toward the swing shaft so as not to contact the table or the like by contracting the handle extension portion with respect to the handle base portion while being seated on the seat. In addition, when the operator contracts the handle extending portion, the protrusion and the groove guide the swinging portion to swing the handle swinging portion, and the distance between the operation portions is widened. Thereby, the distance between operation parts can be extended and an operation part can be prevented from contacting an own body.

The electric mobility of this configuration may include a lock mechanism that holds or releases a fixed state in which the position of the handle extension portion with respect to the handle base portion is fixed.
In this way, the position of the handle extension with respect to the handle base can be fixed at an arbitrary position.

In the electric mobility according to the second aspect of the present invention, the handle includes a load applying mechanism that generates a load in a direction in which the operation unit is moved away from the swing shaft.
By doing so, it is possible to reduce the load necessary for the operator to lift the handle when moving the position of the operating portion of the handle away from the swinging shaft.

The electric mobility according to the third aspect of the present invention is such that the pair of handles are swingable about the swing shaft extending in the vehicle width direction in the vicinity of the axle position of the rear wheel disposed below the seat. ing.
In this way, the handle swings around the vicinity of the axle position of the rear wheel disposed below the seat. Thereby, compared with the case where the handle swings around the same position as the seat or above the seat, the operation portion of the handle can be easily retracted to a position where it does not contact the table or the like.

The electric mobility of the fourth aspect of the present invention includes a moving mechanism that allows the seat to move in the full length direction.
By doing so, the operator can easily get on and off by moving the seat forward in the full length direction when getting on and off the electric mobility.

  Advantageous Effects of Invention According to the present invention, there is an effect that it is possible to provide electric mobility with high operability during maneuvering and easy seating on a table or the like.

It is a side view showing electric mobility of a 1st embodiment of the present invention. It is a rear view which shows the electric mobility of FIG. It is a block diagram which shows the control structure of the electric mobility of FIG. It is a perspective view which shows the left handle | steering-wheel in the expansion | extension state. It is a perspective view which shows the left handle | steering-wheel in a contracted state. It is a top view which shows a pair of handle | steering-wheel in the expansion | extension state. It is a top view which shows a pair of handle | steering-wheel in a contracted state. It is a figure which shows the electric mobility of the state where the operator sat down on the table. It is a figure which shows the electric mobility of the state which the seat moved ahead.

[First Embodiment]
The electric mobility according to the first embodiment of the present invention will be described below with reference to the drawings. Drawing 1 is a side view showing electric mobility 1 of a 1st embodiment. FIG. 2 is a rear view showing the electric mobility 1 of FIG.

  As shown in FIGS. 1 and 2, the electric mobility 1 according to the present embodiment includes a vehicle body frame 2, a drive wheel (rear wheel) 3 and a driven wheel (front wheel) 4 attached to the vehicle body frame 2, A seat 5 and a footrest 6 fixed to the vehicle body frame 2, a pair of handles 7 attached to the vehicle body frame 2, and a controller 8 that controls the drive wheels 3 are provided.

As shown in FIG. 2, the drive wheel 3 is a motor built-in type, and the stator of the motor 3b disposed at the center of the tire 3a in the radial direction is fixed to the vehicle body frame 2, and the rotor of the motor 3b is the tire 3a. It is fixed to.
Two drive wheels 3 are provided at intervals in the width direction of the body frame 2. The drive wheel 3 is supported so as to be rotatable around an axle extending horizontally in the width direction of the body frame 2. Each drive wheel 3 is driven independently by a separate motor 3b, and moves forward and backward linearly by matching the rotational speeds on the left and right sides, and changes direction by varying the rotational speeds. It can be performed.

  The driven wheel 4 is arranged in a central portion in the width direction of the body frame 2 at a position spaced from the driving wheel 3 in the traveling direction. In the present embodiment, the driven wheel 4 is an omnidirectional wheel such as an omni wheel, and is supported so as to be rotatable around an axle extending horizontally in the width direction of the body frame 2. The omnidirectional wheel is a wheel that enables movement in all directions while the axle is fixed to the body frame 2. In FIG. 1 and FIG. 2, the code | symbol 4a is a wheel house.

  Since the omnidirectional wheel fixes the axle, it does not have to be rotated around an axis (for example, a vertical axis) intersecting the axle like a caster, and the installation space for the driven wheel 4 can be reduced. Yes. In particular, even if the diameter of the driven wheel 4 is increased in order to easily get over the unevenness of the road surface, it is not necessary to increase the installation space in the width direction, which is effective. Although FIG. 2 shows an example in which one driven wheel 4 is installed, two driven wheels 4 may be installed and the front wheels may be two. Furthermore, a transmission mechanism such as a belt for transmitting the driving force of the driving wheel 3 to the driven wheel 4 may be provided to provide four-wheel driving.

  The seat 5 is attached to the body frame 2 and is disposed above a position close to the drive wheel 3 between the drive wheel 3 and the driven wheel 4. In the present embodiment, the seat 5 is disposed so that the driven wheel 4 side is in front of the operator A in a state where the operator A is seated on the seat 5. The footrest 6 is disposed between the driving wheel 3 and the driven wheel 4 so as to extend in the traveling direction. In the footrest 6, the operator A puts his / her foot so that the toe is directed toward the driven wheel 4 in a sitting state where the operator A is seated.

  The seat 5 is provided with a moving mechanism (not shown) that enables the operator A to move the seat 5 in the full length direction of the vehicle by releasing the lock mechanism (not shown). The operator A can easily get off the vehicle by releasing the lock mechanism and moving the seat 5 forward of the vehicle when getting off the electric mobility 1. Further, when the seat 5 is moved in front of the vehicle, the operator A can easily perform the operation of getting on the vehicle and sitting on the seat 5.

In the present embodiment, the pair of handles 7 are provided so as to be swingable about a swing shaft B extending in the vehicle width direction in the vicinity of the axle position of the drive wheel 3. Therefore, the swing axis B is disposed below the seat 5.
The pair of handles 7 includes a right handle 7 a disposed on the right side of the operator A seated on the seat 5 and a left handle 7 b disposed on the left side of the driver A seated on the seat 5. Yes.

  The right handle 7a includes a handle base portion 12a, a handle extension portion 13a, and a handle swinging portion 14a. The handle base 12a is attached so as to be swingable about the swing axis B. The handle extension 13a is movable in the length direction of the right handle 7a with respect to the handle base 12a. The handle swinging portion 14a is attached to the handle extending portion 13a so as to be swingable about the swing shaft 18a. An operation unit 11a that is operated with the right hand of the operator is attached to the tip of the handle swinging unit 14a.

  The left handle 7b includes a handle base portion 12b, a handle extension portion 13b, and a handle swinging portion 14b. The handle base 12b is attached to be swingable about the swing axis B. The handle extension 13b is movable in the length direction of the left handle 7b with respect to the handle base 12b. The handle swinging portion 14b is attached to the handle extending portion 13b so as to be swingable about the swing shaft 18b. An operation unit 11b that is operated with the left hand of the operator is attached to the tip of the handle swinging unit 14b.

  The operation unit 11a and the operation unit 11b constitute a pair of operation units 11 operated by the left and right hands of the pilot A. As will be described later, a speed input and a steering input are received from the right hand of the operator A via the operation unit 11a, and no special operation input is received from the operation unit 11b. In the present embodiment, an operation input (speed input and steering input) for directly operating the electric mobility 1 is accepted only from the right hand of the pilot A. In this case, the pilot A places the left hand on the operation unit 11b. And In this manner, the pair of operation units 11 operated by the left and right hands of the pilot A function.

  The handle base portion 12a and the handle extension portion 13a constitute a telescopic mechanism that can adjust the distance of the operation portion 11a with respect to the swing axis B. The handle base portion 12b and the handle extension portion 13b constitute a telescopic mechanism that can adjust the distance of the operation portion 11b with respect to the swing axis B.

  Next, the control configuration of the electric mobility 1 will be described with reference to FIG. FIG. 3 is a block diagram showing a control configuration of the electric mobility 1 of FIG.

  The pair of operation units 11 receives at least two types of inputs from the driver A: a speed input for determining the forward speed or the reverse speed of the electric mobility 1 and a steering input for determining the steering direction of the electric mobility 1. Is. As will be described later, in this embodiment, a speed input and a steering input by the pilot A are received via the operation stick 11c provided in the operation unit 11a operated with the right hand of the pilot A.

  The control unit 8 receives the speed input from the operator A and outputs the same drive command signal to the two drive wheels 3 when the steering input is not received. The case where the steering input is not accepted means that the steering input for making the electric mobility 1 go straight is made.

  When the same drive command signal is output to the two drive wheels 3, the two drive wheels 3 rotate in the same direction at the same speed, and the electric mobility 1 moves forward or backward. In this case, the forward speed or the reverse speed is adjusted according to the magnitude of the speed input by the operator A.

When receiving a steering input from the operator A, the control unit 8 outputs different drive command signals to the right driving wheel 3 and the left driving wheel 3 in accordance with the steering input.
When the operation unit 11 receives a steering input in the right direction from the operator A, the control unit 8 drives the drive command signal so that the rotational speed of the left driving wheel 3 is higher than the driving wheel 3 on the right side of the operator A. Is output. Thereby, the electric mobility 1 is steered rightward.

  In addition, when the operation unit 11 receives a leftward steering input from the operator A, the control unit drives the drive command so that the rotational speed of the right drive wheel 3 is faster than the left drive wheel 3 of the operator A. Output a signal. Thereby, the electric mobility 1 is steered in the left direction.

  When the control unit 8 receives a steering input from the operator A and does not receive a speed input, the control unit 8 outputs a drive command signal so that the two driving wheels 3 rotate in the opposite directions at the same speed. When the steering input in the right direction is received, the electric mobility 1 rotates in the right direction at the same position without moving forward or backward. When a leftward steering input is received, the electric mobility 1 does not move forward or backward but rotates leftward at the same position.

  When both the speed input and the steering input by the operator A are received from the operation unit 11, the control unit 8 superimposes a drive command signal corresponding to the speed input and a drive command signal corresponding to the steering input, so that two drive wheels 3 is output. Accordingly, the electric mobility 1 is steered right or left while moving forward or backward.

Next, the structure of the pair of handles 7 will be described in more detail with reference to FIGS.
FIG. 4 is a perspective view showing the left handle in the extended state. FIG. 5 is a perspective view showing the left handle in the contracted state. FIG. 6 is a plan view showing the pair of handles 7 in the extended state. FIG. 7 is a plan view showing the pair of handles 7 in the contracted state.

As shown in FIGS. 4 and 5, the left handle 7b includes a handle base 12b (extension mechanism), a handle extension 13b (extension mechanism), a handle swing part 14b (swing mechanism), and an operation part 11b. It has.
The handle base 12b shown in FIGS. 4 and 5 is shown with a part thereof omitted, and has a mechanism in which a lower end portion is swingably attached to the swing shaft B.

The handle base portion 12b is provided with a slide guide (not shown), and the handle extension portion 13b is provided with a slide rail 19b. The slide rail 19b is inserted so as to engage with the slide guide. By moving the slide rail 19b in the length direction of the left handle 7b along the slide guide, the distance of the operation portion 11b with respect to the swing axis B can be adjusted.
Thus, the handle extension part 13b provided with the slide rail 19b and the handle base part 12b provided with the slide guide function as an extension / contraction mechanism capable of adjusting the distance of the operation part 11b with respect to the swing axis B.

  An engagement hole is provided in the lower end portion of the handle swinging portion 14b, and is inserted into the swing shaft 18b fixed to the handle extending portion 13b. In this way, the handle swinging portion 14b is swingably attached to the handle extending portion 13b.

  As shown in FIG. 4, a pair of guide slits 16b (groove portions) are provided on the right side surface and the left side surface of the handle swinging portion 14b. In the extended left handle 7b shown in FIG. 4, the guide slit 16b has a shape inclined in a direction from the outside toward the inside of the vehicle body from the lower end portion toward the upper end portion.

  A pair of guide pins 15b (protrusions) are inserted into the pair of guide slits 16b. The guide pin 15b is fastened to a fastening hole (not shown) provided on the side surface of the handle base 12b.

  As described above, the handle swinging portion 14b is attached to the handle extending portion 13b, and the guide pin 15b is fixed to the handle base portion 12b. Therefore, when the handle extending portion 13b is moved (stretched) with respect to the handle base portion 12b, the position of the guide pin 15b in the extending direction of the guide slit 16b changes.

When the operator A contracts the extended left handle 7b shown in FIG. 4, the position of the guide pin 15b moves from the lower end portion of the guide slit 16b toward the upper end portion.
Here, the guide slit 16b has a shape inclined in a direction from the outside of the vehicle body to the inside from the lower end portion close to the swing axis B toward the upper end portion.

  Therefore, as the position of the guide pin 15b moves toward the upper end of the guide slit 16b, the guide pin 15b is abutted against the inclined guide slit 16b. At this time, the guide pin 15b and the guide slit 16b guide the handle swinging portion 14b to swing from the center of the vehicle body toward the outside of the vehicle body. When the position of the guide pin 15b coincides with the upper end portion of the guide slit 16b, the left handle 7b is in the contracted state shown in FIG.

  When the operator A extends the contracted left handle 7b shown in FIG. 5, the position of the guide pin 15b moves from the upper end to the lower end of the guide slit 16b. As the position of the guide pin 15b moves toward the lower end of the guide slit 16b, the guide pin 15b is abutted against the inclined guide slit 16b. At this time, the guide pin 15b and the guide slit 16b guide the handle swinging portion 14b to swing from the outside of the vehicle body toward the center of the vehicle body. When the position of the guide pin 15b coincides with the lower end portion of the guide slit 16b, the left handle 7b is in the extended state shown in FIG.

Since the operating portion 11b is attached to the handle swinging portion 14b, when the operator A brings the operating portion 11b close to the swinging shaft B, the distance between the operating portion 11a and the operating portion 11b increases.
Further, when the operator A moves the operation unit 11b away from the swing axis B, the distance between the operation unit 11a and the operation unit 11b is reduced.
As described above, the handle swinging portion 14b provided with the guide slit 16b and the guide pin 15b fastened to the handle base portion 12b function as an interval adjusting mechanism for adjusting the distance between the operation portion 11a and the operation portion 11b. .

Next, the slide lock 20b that fixes the position of the handle extension 13b relative to the handle base 12b will be described.
The slide lock 20b shown in FIG. 4 is fixed to the handle extension 13b and includes a cylinder 23b and a wire tube 21b. The cylinder 23b is a hollow cylindrical member, and a rod 26b is inserted therein so as to be movable in the axial direction. The cylinder 23b is fixed to a cylinder receiver 24b fixed to the handle swinging portion 14b by welding or the like.

  The rod 26b is fixed to the handle base 12b by a fixing mechanism (not shown). A wire 22b is inserted into the wire tube 21b, one end of which is fixed to the lock lever 17b (lock mechanism), and the other end is fixed inside the slide lock 20b.

  The lock lever 17b rotates around the rotation shaft 27b when operated by the operator A. In the left handle 7b shown in FIG. 4, the wire 22b is pulled upward in FIG. 4 by rotating the lock lever 17b clockwise around the rotation shaft 27b in FIG.

  The slide lock 20b is provided with a gripping mechanism (not shown) that grips the rod 26b inserted into the cylinder 23b. This gripping mechanism grips the rod 26b and fixes the position of the rod 26b relative to the cylinder 23b in the state shown in FIG. 4, that is, in the normal state where the wire 22b is not pulled upward in FIG. Therefore, in a normal state where the operator A does not operate the lock lever 17b, the slide lock 20b maintains a fixed state in which the position of the handle extension part 13b with respect to the handle base part 12b is fixed.

  When the operator A rotates the lock lever 17b clockwise around the rotation shaft 27b in FIG. 4 and pulls the wire 22b upward in FIG. 4, the state in which the gripping mechanism grips the rod 26b is released, and the cylinder 23b In contrast, the rod 26b is in a released state in which it can move. The operator A can expand and contract the left handle 7b by moving the operation unit 11b closer to or away from the swing axis B in the released state.

  Next, the load application mechanism provided in the left handle 7b will be described. The load application mechanism includes a pulley 25b, a constant load spring (not shown), and a wire (not shown) that transmits the tension generated by the constant load spring to the handle extension part 13b via the pulley 25b. The pulley 25b is fixed to the handle extension 13b, and the constant load spring is fixed to the handle base 12b.

  The constant load spring is formed of, for example, a tape measure type spring, and generates a substantially constant tension regardless of the length of extension of the spring. A wire is attached to the tip of the constant load spring, and the other end of the wire is attached to the handle extension 13b. By interposing the pulley 25b, the direction of the tension generated by the constant load spring downward in FIG. 4 is changed, and the tension becomes a load that moves the handle extending portion 13b upward. As described above, the load application mechanism has a function of generating a load in a direction in which the operation unit 11b is moved away from the swing axis B.

  When the operator A places the left handle 7b in the contracted state in the extended state, it is necessary to move the operation unit 11b away from the swing axis B. The operation unit 11b includes a handle swing unit 14b and a handle extension unit 13b. Because they are connected, it is difficult to lift their weight. In the present embodiment, since the load in the direction of moving the operating portion 11b away from the swing axis B is applied by the load applying mechanism, the operator A can easily set the left handle 7b in the contracted state to the extended state.

  In the above description, the configuration of the left handle 7b of the pair of handles 7 has been described. However, the configuration of the right handle 7a is the left handle 7b except that the operation portion 11a of the right handle 7a includes the operation stick 11c. It is the same as that of the structure.

  The operation part 11a, handle base part 12a (extension mechanism), handle extension part 13a (extension mechanism), and handle swing part 14a (swing mechanism) of the right handle 7a are respectively connected to the operation part 11b, handle base part 12b, It corresponds to the handle extending portion 13b and the handle swinging portion 14b.

  In addition, the guide pin 15a (protrusion), the guide slit 16a (groove), the lock lever 17a (lock mechanism), the swing shaft 18a, and the rotation shaft 27a of the right handle 7a are the guide pin 15b and guide slit of the left handle 7b, respectively. 16b, the lock lever 17b, the swing shaft 18b, and the rotary shaft 27b.

  The configuration of the right handle 7a corresponding to the slide rail 19b, slide lock 20b, wire tube 21b, wire 22b, cylinder 23b, cylinder receiver 24b, pulley 25b and rod 26b of the left handle 7b is not shown, but the same It is assumed to have a configuration.

  The operation stick 11c shown in FIGS. 6 and 7 receives a speed input and a steering input by the operator A. The operation stick 11c is displaced in two directions, the left and right direction and the front and rear direction, when the operator A operates with the right hand. When the operator A does not touch the operation stick 11c, the operation stick 11c is held at an initial position in the left-right direction and an initial position in the front-rear direction by an urging force such as a spring. At the initial position in the left-right direction, an operation input is made with the steering direction as the straight direction. At the initial position in the front-rear direction, the speed that does not advance or reverse is zero.

6 shows a pair of handles 7 in an extended state, and FIG. 7 shows a pair of handles 7 in a contracted state.
Since the handle base portions 12a and 12b are respectively attached to the swing shaft B, the fixed interval W3 is set regardless of the expansion / contraction state of the handle 7.
On the other hand, the interval W2 between the operation portions 11a and 11b of the pair of handles 7 in the contracted state is wider than the interval W1 between the operation portions 11a and 11b of the pair of handles 7 in the extended state.

Here, a state where the operator A is seated on the table T while riding the electric mobility 1 will be described. FIG. 8 is a diagram illustrating the electric mobility 1 in a state where the pilot A is seated on the table T.
When the operator A sits on the table T, the operating portions 11a and 11b are brought close to the swing axis B, and the left handle 7b and the right handle 7a constituting the pair of handles 7 are contracted, respectively.

When the pair of handles 7 is in the contracted state, the swing angle of the pair of handles 7 (the acute angle formed by the length of the pair of handles 7 with respect to the ground) becomes larger than during steering (running). When the swing angle increases, the operation portions 11a and 11b move upward, but the pair of handles 7 are in a contracted state. Therefore, in the contracted state, the height of the operation portions 11a and 11b from the ground is the same as that when the pair of handles 7 are in the extended state.
Therefore, the operation units 11a and 11b can be arranged at a position where the operator A can operate while avoiding the operation units 11a and 11b coming into contact with the table T when sitting on the table T.

  Next, the electric mobility 1 when the pilot A gets off the electric mobility 1 will be described. FIG. 9 is a diagram illustrating the electric mobility 1 in a state where the seat 5 has moved forward. As described above, the seat 5 is provided with a moving mechanism (not shown) that allows the operator A to move the seat 5 in the full length direction of the vehicle by releasing the lock mechanism (not shown).

  As shown in FIG. 9, in the pair of handles 7 of this embodiment, the right handle 7a and the left handle 7b can swing around the swing axis B independently of each other. The swing angle of the right handle 7a and the left handle 7b can be changed by the operator A moving each handle. Further, even if the operator A releases his / her hand from the handle, the swing angle is maintained. Further, the pair of handles 7 may be configured such that the swing angle is reliably maintained by a lock mechanism (not shown).

  As shown in FIG. 9, by reducing the swing angle of the right handle 7a and extending it, the operator A can support the operation portion 11a as a right hand support when getting off the vehicle. Similarly, by reducing the swing angle of the left handle 7b and setting the left handle 7b to the extended state, the operator A can support the operation portion 11b as a support for the left hand when getting off the vehicle.

  As described above, according to the electric mobility 1 of the present embodiment, the operator A extends the pair of handles 7 by the telescopic mechanism provided on the pair of handles 7 while being seated on the seat 5 to adjust the distance. By narrowing the distance between the operation parts 11a and 11b by the mechanism, the drive wheels 3 can be driven and steered by operating the pair of operation parts 11a and 11b arranged at positions where the operation parts 11a and 11b are easy to operate. .

On the other hand, the operator A retracts the operation portions 11a and 11b toward the swing axis B so as not to contact the table T by contracting the pair of handles 7 by the telescopic mechanism while sitting on the seat 5. can do. Further, the operator A contracts the pair of handles 7 to operate the interval adjusting mechanism, thereby widening the distance between the operation units 11a and 11b so that the operation units 11a and 11b do not come into contact with his / her body. be able to.
Accordingly, it is possible to provide the electric mobility 1 that has high operability during maneuvering and can be easily seated on the table T.

  Further, according to the electric mobility 1 of the present embodiment, the operator A extends the handle extending portions 13a and 13b with respect to the handle base portions 12a and 12b while sitting on the seat 5, and guide slits 16a and 16b (groove portions). The handle swinging portions 14a and 14b are swung so as to reduce the distance between the operation portions 11a and 11b by moving the positions of the guide pins 15a and 15b (protrusion portions) engaged with the operation pins 11a and 11b. As a result, the drive wheels 3 can be driven and steered by operating the pair of operation portions 11a and 11b disposed at positions that are easy to operate in front of themselves.

  On the other hand, the operator A retracts the operation portions 11a and 11b toward the swing axis B by contracting the handle extending portions 13a and 13b with respect to the handle base portions 12a and 12b while sitting on the seat 5. The table T can be prevented from touching. Further, when the operator A contracts the handle extending portions 13a and 13b, the guide pins 15a and 15b and the guide slits 16a and 16b guide the handle swinging portions 14a and 14b to swing, thereby operating the operation unit. The distance between 11a and 11b increases. Thereby, the distance between operation part 11a, 11b can be extended, and operation part 11a, 11b can be prevented from contacting an own body.

The electric mobility 1 of this embodiment includes a slide lock that holds or releases a fixed state in which the positions of the handle extension portions 13a and 13b are fixed with respect to the handle base portions 12a and 12b.
By doing in this way, the position of handle extension parts 13a and 13b to handle base parts 12a and 12b can be fixed in arbitrary positions.

The electric mobility 1 of the present embodiment includes a load applying mechanism in which the pair of handles 7 generate a load in a direction in which the operation units 11a and 11b are moved away from the swing axis B.
In this way, when the positions of the operation portions 11a and 11b of the pair of handles 7 are moved away from the swing axis B, the load required for the operator A to lift the pair of handles 7 is reduced. can do.

In the electric mobility 1 of the present embodiment, a pair of handles 7 are provided so as to be able to swing around a swing axis B extending in the vehicle width direction in the vicinity of the axle position of the drive wheel 3 disposed below the seat 5. .
By doing so, the pair of handles 7 swings around the vicinity of the axle position of the drive wheel 3 disposed below the seat 5. Thereby, compared with the case where the pair of handles 7 swings around the same position as the seat 5 or above the seat 5, the operation portions of the pair of handles 7 can be easily retracted to a position where they do not contact the table T. it can.

The electric mobility 1 of this embodiment includes a moving mechanism that allows the seat 5 to move in the full length direction.
By doing in this way, the pilot A can move the seat 5 forward in the full length direction when getting on and off the electric mobility 1 and can easily get on and off.

Other Embodiment
In the first embodiment, the driving wheel 3 is a rear wheel and the driven wheel 4 is a front wheel. However, the electric driving wheel 3 is a front wheel and the driven wheel 4 is a rear wheel. Good. In this case, it is preferable that the driving wheel 3 of the front wheel is two wheels spaced apart in the width direction and the driven wheel 4 of the rear wheel is one wheel or two wheels spaced apart in the width direction.

  In the first embodiment, the speed input and the steering input are received from the right hand of the pilot A via the operation stick 11c provided in the operation unit 11a. However, other modes may be used. For example, an operation stick 11c may be provided in the operation unit 11b, and a speed input and a steering input may be received from the left hand of the operator A. Further, for example, the speed input may be received from the right hand of the pilot A via the operation unit 11a, and the steering input may be received from the left hand of the pilot A via the operation unit 11b. Further, for example, after the operation stick 11c is provided in the operation unit 11a, another operation stick for determining the maximum rotation speed of the drive wheel 3 may be provided in the operation unit 11b. Further, for example, the operation unit 11a and the operation unit 11b may be exchangeable, and the operation unit 11a including the operation stick 11c may be provided at any position on the left or right of the pilot A.

In the first embodiment, the handle swinging portions 14a and 14b are provided with guide slits 16a and 16b (groove portions), and the handle base portions 12a and 12b are provided with guide pins 15a and 15b (protrusion portions). Other embodiments may be used. For example, guide pins 15a and 15b (protrusions) may be provided on the handle swinging portions 14a and 14b, and guide slits 16a and 16b may be provided on the handle base portions 12a and 12b. In this case, the guide slits 16a and 16b are inclined in a direction from the inside of the vehicle body to the outside from the lower end portion close to the swing axis B toward the upper end portion.
As described above, the guide pins 15a and 15b (protrusions) may be provided on any one of the handle base portions 12a and 12b and the handle swinging portions 14a and 14b. Further, the guide slits 16a and 16b (groove portions) may be provided on either one of the handle base portions 12a and 12b and the handle swinging portions 14a and 14b.

  In the first embodiment, as shown in FIG. 2, even when the pair of handles 7 is in the extended state and the interval between the operation portions 11 a and 11 b is narrowed, the interval is wider than the width of the seat 5. Although it was a thing, another aspect may be sufficient. For example, when the interval between the operation units 11 a and 11 b is narrowed, the interval may be narrower than the width of the seat 5. In this case, when the pair of handles 7 is in a contracted state and the interval between the operation portions 11 a and 11 b is widened, the interval is preferably wider than the width of the seat 5. By doing in this way, even if it is a case where the seat 5 moves back and forth by making a pair of handle 7 into a contracted state, the malfunction that the seat 5 contacts operation part 11a, 11b is prevented reliably. be able to.

  In the first embodiment, the drive wheel 3 included in the electric mobility 1 is a motor built-in type. However, the motor may be a non-motor built-in type in which the motor is disposed outside the drive wheel 3.

A Pilot B Swing axis T Table 1 Electric mobility 2 Body frame 3 Drive wheel (rear wheel)
4 driven wheels (front wheels)
5 Seat 7 Pair of Handles 7a Right Handle 7b Left Handle 8 Control Unit 11 Pair of Operation Units 11a, 11b Operation Unit 11c Operation Stick 12a, 12b Handle Base (Extension Mechanism)
13a, 13b Handle extension part (extension mechanism)
14a, 14b Handle swing part (swing mechanism)
15a, 15b Guide pin (protrusion)
16a, 16b Guide slit (groove)
17a, 17b Lock lever (lock mechanism)
18a, 18b Oscillating shaft 19b Slide rail 20b Slide lock (lock mechanism)

Claims (7)

A rear wheel and a front wheel arranged at intervals in the traveling direction, at least one of which is an electrically driven wheel;
A body frame that rotatably supports the front and rear wheels around each axle;
A seat attached to the vehicle body frame and disposed above a position between the front wheel and the rear wheel adjacent to the rear wheel;
A pair of handles that are attached to the vehicle body frame so as to be swingable about a swing shaft extending in the vehicle width direction, and are disposed on both the left and right sides of the pilot seated in the seat;
The pair of handles are
A pair of operation units that are arranged in front of the operator during operation and are operated by the left and right hands of the operator;
A pair of telescopic mechanisms capable of adjusting the distance of the operating portion relative to the swing shaft;
Electric mobility provided with a pair of distance adjusting mechanisms that move to widen the distance between the operation units.   2. The electric mobility according to claim 1, wherein the pair of distance adjustment mechanisms move the distance between the operation units to be widened when the operation unit is moved closer to a swing shaft by the expansion and contraction mechanism. The telescopic mechanism includes a handle base that is swingably mounted about the swing shaft, and a handle extension that is movable in the length direction of the handle with respect to the handle base.
The interval adjusting mechanism includes a handle swinging portion that is swingably attached to the handle extension portion;
A protrusion is provided on one of the handle base and the handle swinging part,
A groove that engages with the protrusion is provided on the other of the handle base and the handle swinging portion,
3. The electric motor according to claim 2, wherein, when the operation portion is brought close to the swing shaft, the protrusion and the groove guide the swing portion to swing the handle swing portion to increase the distance between the operation portions. Mobility.   The electric mobility according to claim 3, further comprising a lock mechanism that holds or releases a fixed state in which a position of the handle extension portion with respect to the handle base portion is fixed.   The electric mobility according to any one of claims 1 to 4, wherein the handle includes a load application mechanism that generates a load in a direction in which the operation unit is moved away from the swing shaft.   The pair of handles are provided so as to be swingable about the swinging shaft extending in the vehicle width direction in the vicinity of the axle position of the rear wheel disposed below the seat. Electric mobility according to claim 1.   The electric mobility according to any one of claims 1 to 6, further comprising a moving mechanism that enables the seat to move in a full length direction.

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