TW202210320A - Auxiliary moving vehicle with front guide wheel structure - Google Patents

Abstract

An auxiliary moving vehicle with front guide wheel structure, by setting a front guide wheel in a frame and allowing a center of the front guide wheel to be higher than centers of two front wheels in the vertical direction, therefore, even if you encounter a barge, as long as the center of the front guide wheel is higher than the barge, you can climb the barge and lift the front wheels through the front guide wheel, after the front wheels are lifted, the centers of the front wheels are higher than the plane of the barge, you can also climb the barge, so that the user can operate the moving vehicle to climb the barge by himself.

Description

Auxiliary mobile carrier with front idler structure

The present invention relates to the technical field of auxiliary mobile vehicles, in particular to an auxiliary mobile vehicle with a front guide wheel structure.

Auxiliary mobile vehicles can generally be divided into two parts, powered and unpowered. Among them, unpowered auxiliary mobile vehicles are general carts or wheelchairs, while powered auxiliary mobile vehicles can be general electric vehicles. A wheelchair or electric vehicle is a device equipped with wheels to assist the injured, the sick, and the disabled to move out. Electric wheelchairs and electric vehicles not only meet the needs of transportation, but more importantly, drive electric wheelchairs and electric vehicles through electric motors. People who still have the ability to move their upper body can operate electric wheelchairs or electric vehicles by themselves. Therefore, electric wheelchairs or electric vehicles have become the most used assisted mobility vehicles.

However, the roads on which electric wheelchairs or electric vehicles travel are not completely straight, and there are many high and low thresholds on the outdoor road, that is, take the sidewalk as an example: the general sidewalk will be about 10 cm higher than the road on which the vehicle is driving, forming a ridge with a height difference. , and when the height of the sill is higher than the radius of the front wheel, the front wheel hits the front of the sill and cannot effectively cross the sill, and it is difficult for an electric wheelchair or electric vehicle to climb over the sill and climb the sidewalk by itself. Go up the ramp, or seek the assistance of a third person, try to raise the front wheel first, at least make the wheel center of the front wheel exceed the height of the sill, and then the front wheel can roll over the sill, resulting in the electric wheelchair or electric vehicle. There are still limitations in use, which causes inconvenience in use.

The purpose of the present invention is to solve the problem that the auxiliary mobile vehicle is difficult to cross when passing through the barge.

In order to solve the aforementioned problems, the present invention is an auxiliary mobile vehicle with a front guide wheel structure, comprising:

A frame, two front wheels are arranged on both sides of the front end of the frame, and the direction of forward movement along the frame is defined as the longitudinal direction, and the extension from one of the front wheels to the other is the horizontal direction, and the other is with the longitudinal direction The direction perpendicular to the horizontal direction is a vertical direction, the front wheel is defined as the first end point from the wheel center extending forward along the longitudinal direction to the wheel rim, and the front wheel is defined by the wheel center extending downward along the vertical direction to the wheel rim is a third endpoint;

in;

A front guide wheel is arranged at the front end of the frame, and the front guide wheel extends forward from the wheel center to the rim to define a second end point along the longitudinal direction. The second end point protrudes forward in the longitudinal direction. The first end point of the front wheel, the front guide wheel extending downward from the wheel center to the rim along the vertical direction is defined as a fourth end point, the fourth end point is higher than the third end point and has a height difference , which is defined as a first height, which is smaller than the radius of the front wheel.

In another preferred embodiment, the frame has a rear lever;

a middle frame, connected to the rear lever;

A front rod is connected to the middle frame, and the direction in which the rear rod extends to the front rod is the longitudinal direction. The front rod has two front wheels arranged at both ends and a front wheel arranged between the two front wheels. Front guide wheels, the direction in which one of the front wheels extends to the other front wheel is the horizontal direction, and the other has the vertical direction perpendicular to the horizontal direction and the vertical direction, and each of the front wheels is opposite to the rear vehicle from the wheel center. The longitudinal direction of the rod direction extending to the wheel rim is the first end point, the front guide wheel extending from the wheel center along the longitudinal direction opposite to the rear vehicle rod to the wheel rim is the second end point, in the longitudinal direction The upper first end point is closer to the rear axle than the second end point, and the rim of the front guide wheel has the fourth end point closest to the ground, the fourth end point extending along the vertical direction to the ground has the A first height, the first height being less than the radius of the front wheel.

In another preferred embodiment, the center of the front wheel is higher than the lower end of the front guide wheel in the vertical direction.

When the height of the sill is higher than the radius of the front wheel, since the wheel center of the front guide wheel is higher than the height of the sill, when the auxiliary mobile vehicle continues to move forward, the front guide wheel will first move and roll over the height of the sill to reach the height of the sill. The top of the sill, and then the two front wheels are raised; and the wheel centers of the two raised front wheels are higher than the top of the sill, when the auxiliary mobile vehicle with the front guide wheel structure continues to move forward, the two front wheels can be moved. Move to the plane of the ridge, and then complete the effect of stepping on the high ridge.

Please refer to FIG. 1 to FIG. 4 , the present invention is an auxiliary mobile vehicle with a structure of a front guide wheel 32 , which mainly has a frame A, and the frame A has a rear pole 10 , a middle frame 20 and a front vehicle The rod 30, the auxiliary mobile vehicle with the structure of the front guide wheel 32 usually drives on a ground, and the ground refers to the general road for auxiliary mobile vehicles, electric vehicles, automobiles, pedestrians, etc. to travel, wherein:

Two driving wheels 11 are installed on the rear axle 10 for driving the power source, so that the auxiliary mobile vehicle with the structure of the front guide wheel 32 of the present invention can complete the actions of forward, backward, and steering.

The middle frame 20 is connected to the rear axle 10 . In this embodiment, the middle frame 20 is composed of two spines 21 , and the two spines 21 carry a seat 22 , a battery (not shown) and a power source. , so that the user can sit on the seat 22 and operate the opening and closing of the power source.

The front rod 30 is connected to the middle frame 20 , and the two spines 21 of the middle frame 20 are connected between two ends of the front rod 30 , and the rear rod 10 extends to the direction of the front rod 30 is a longitudinal direction X, which is the same as the direction in which the frame 100 moves forward, the front rod 30 has two front wheels 31 arranged at both ends, and a front guide wheel 32 arranged between the two front wheels 31, one of which is The direction in which the front wheel 31 extends to another front wheel 31 is a lateral direction Y, and another vertical direction Z is perpendicular to the longitudinal direction X and the lateral direction Y. The front wheel 31 extends forward from the wheel center along the longitudinal direction To the wheel rim is defined as the first end point, that is, the first end point 311 is the position of each front wheel 31 extending from the wheel center along the longitudinal direction X opposite to the rear axle 10 to the wheel rim, the front wheel 31 is defined as a third end point 312 from the position where the wheel center extends down to the wheel rim along the vertical direction Z, which is in normal contact with the ground; and the front guide wheel 32 extends forward from the wheel center to the wheel along the longitudinal direction. The position of the rim is defined as a second end point 321, that is, the second end point 321 is the position from the front guide wheel 32 from the wheel center along the longitudinal direction X opposite to the rear axle 10 to the position of the wheel rim , the second end point 321 protrudes forward from the first end point 311 of the front wheel 31 along the longitudinal direction X, that is, the first end point 311 is closer to the rear end point than the second end point 321 in the longitudinal direction X The vehicle rod 10 and the position where the front guide wheel 32 extends downward from the wheel center to the wheel rim along the vertical direction Z is defined as the fourth end point 322 , that is, the fourth end point 322 is the wheel rim of the front guide wheel 32 has the end point closest to the ground, the fourth end point 322 is higher than the third end point 312, and has a height difference, defined as a first height H, the first height is smaller than the radius R of the front wheel 31, namely The first height H is the height at which the fourth end point 322 extends along the vertical direction Y to the ground when the front wheel 31 contacts the ground; in this embodiment, the wheel diameter of the front guide wheel 32 is smaller than that of the front wheel 31 However, the wheel diameters of the front guide wheel 32 and each of the front wheels 31 are not limited to this embodiment, and there is a possibility that the wheel diameter of the front guide wheel 32 is larger than the wheel diameter of the two front wheels 31 .

In particular, please refer to FIG. 2, when the height of the sill 40 to be crossed by the present invention is higher than the radius R of the front wheel 31, because the second end 321 of the front guide wheel 32 of the present invention is higher than the top 42 of the sill 40 , and the front guide wheel 32 when the two front wheels 31 are attached to the ground, the wheel center of the front guide wheel 32 is higher than the top 42 of the sill 40, so the front guide wheel 32 can be driven by the power source to push the frame A to roll and climb On the sill 40, because the wheel center of the front wheel 31 is higher than the four end points 322 of the front guide wheel 32 in the vertical direction Y, therefore, when the front guide wheel 32 climbs up the sill 40, it can ensure that the two front wheels The center of the wheel 31 is higher than the top 42 of the sill 40, thereby ensuring that when the front guide wheel 32 climbs the sill 40, the center of the front wheel 31 and the second end point 311 will be higher than the sill 40. the top 42 , so that the two front wheels 31 can also smoothly roll and climb up the barge 40 .

The above is the structure configuration and the connection relationship of the present invention in a preferred embodiment. The use method of the present invention and the effects that can be achieved are as follows:

Please refer to FIG. 3 , when the auxiliary mobile vehicle with the structure of the front guide wheel 32 of the present invention encounters the sill 40 during its travel, the front guide wheel 32 will first contact the front surface 41 of the sill 40 . Both the wheel center and the first end point 321 are higher than the top 42 of the sill 40 , so the front guide wheel 32 can climb up the sill 40 by the force of the power source to push the frame A and its own rolling. the top 42 of the sill 40, and then lift the two front wheels 31, the wheel center and the second end point 311 of the lifted two front wheels 31 are higher than the top 42 of the sill 40 at the same time, when the auxiliary movement with the structure of the front guide wheel 32 When the vehicle continues to move forward, the two front wheels 31 can be guided by the front guide wheels 32 to make the second end point 311 climb the top 42 of the sill 40 , thereby completing the effect of stepping on the sill 40 .

In this case, by setting the front guide wheel 32 and making the wheel center of the front guide wheel 32 higher than the wheel center of the two front wheels 31 in the vertical direction Y, even if encountering a barge 40 with a height higher than the radius R of the front wheel 31, As long as the wheel center position of the front guide wheel 32 and the height of the second end point 321 are higher than the sill 40, the front guide wheel 32 can climb up the sill 40 to lift the two front wheels 31, and the two front wheels 31 After being lifted, the center of the wheel is higher than the top 42 of the sill 40, so it can also climb up the sill 40, so that the user can climb up the sill 40 by himself without the assistance of a third person.

A: Frame 10: Rear lever 11: Drive Wheel 12: Electric Motor 20: Middle frame 21: Spine 22: Seat 30: Front lever 31: Front Wheel 311: First endpoint 312: Third endpoint 32: Front guide wheel 321: second endpoint 322: Fourth endpoint 322: low endpoint 40: Barrier 41: Front 42: Top H: first height X: horizontal direction Y: vertical direction Z: vertical direction

1 is a perspective view of the present invention in a preferred embodiment; 2 is a side view of the present invention in a preferred embodiment; 3 is a partial enlarged view of the present invention in a preferred embodiment; 4 is a schematic side view of the front guide wheel abutting against the sill in a preferred embodiment of the present invention; 5 is a schematic plan view of the front guide wheel climbing up the sill in a preferred embodiment of the present invention; 6 is a schematic plan view of the front wheel climbing up the sill in a preferred embodiment of the present invention.

10: Rear lever

11: Drive Wheel

12: Electric Motor

20: Middle frame

21: Spine

22: Seat

30: Front lever

31: Front Wheel

32: Front guide wheel

A: Frame

X: horizontal direction

Y: vertical direction

Z: vertical direction

Claims (3)

An auxiliary mobile vehicle with a front guide wheel structure, comprising: A frame, two front wheels are arranged on both sides of the front end of the frame, and the direction of forward movement along the frame is defined as the longitudinal direction, and the extension from one of the front wheels to the other is the horizontal direction, and the other is with the longitudinal direction The direction perpendicular to the horizontal direction is a vertical direction, the front wheel is defined as the first end point from the wheel center extending forward along the longitudinal direction to the wheel rim, and the front wheel is defined by the wheel center extending downward along the vertical direction to the wheel rim is a third endpoint; A front guide wheel is installed at the front end of the frame, and the front guide wheel extends forward from the wheel center to the rim to define a second end point along the longitudinal direction. The first end point of the front wheel, the front guide wheel extending downward from the wheel center to the wheel rim along the vertical direction is defined as the fourth end point, the fourth end point is higher than the third end point, and has a height difference, Defined as a first height, the first height is smaller than the radius of the front wheel. The auxiliary mobile vehicle with a front guide wheel structure as claimed in claim 1, wherein a rear pole; a middle frame, connected to the rear pole; a front pole, connected to the middle frame, and the rear pole The direction extending to the front rod is the longitudinal direction, the front rod has two front wheels arranged at both ends, and a front guide wheel arranged between the two front wheels, wherein one of the front wheels extends to the other of the front wheels. The direction is the horizontal direction, and also has the vertical direction perpendicular to the horizontal direction and the vertical direction, and the position of each of the front wheels from the wheel center along the longitudinal direction opposite to the rear axle to the rim is the first The end point, the position of the front guide wheel extending from the wheel center to the wheel rim along the longitudinal direction opposite to the rear vehicle rod is the second end point, and the first end point is closer to the second end point in the longitudinal direction The rear axle and the rim of the front guide wheel have the fourth end point closest to the ground, and the four end points extend along the vertical direction to the ground to be the first height. The auxiliary mobile vehicle having a front guide wheel structure as claimed in claim 1, wherein the wheel center from the front wheel is higher than the four end points of the front guide wheel in the vertical direction.

Images