JP3076882U - Structure of four wheel motor scooter - Google Patents

Abstract

(57) [Summary] [Problem] To provide a structure of a four-wheel motor scooter that is comfortable to ride on, is easy to operate, can adjust the tilt angle of a handle, and disassembles and assembles front and rear frames quickly and conveniently. . SOLUTION: The present invention provides a four-wheel motor scooter structure having a handle design capable of adjusting a tilt angle, good seismic reduction effect, and a front-back collision prevention design. It consists of a frame main body in which the front frame and the rear frame are connected to each other by a quick connection device provided in the connection portion, a seat stem provided with a seat provided above the front frame rear, and one side of the seat stem. And a vibration damper provided between the pipes in the rear frame.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a type of four-wheel motor scooter, and more particularly to a four-wheel motor scooter having a handle design capable of adjusting a tilt angle, a good anti-seismic effect, and a front-rear collision prevention design. .

[0002]

[Prior art]

 Generally, four-wheel motor scooters, which are generally known, are provided with almost all of their body and are not provided with any anti-vibration design, so when traveling on uneven road surfaces, the whole body undergoes severe shaking and vibration. Occasionally, this caused the driver to feel uncomfortable. In addition, general four-wheel motor scooters are designed for elderly people, but are subject to severe shaking and vibrations, making it extremely difficult for them to drive or crash. Cannot be disassembled and is inconvenient to transport and store.

[0003]

[Problems to be solved by the invention]

 The main purpose of the present invention is to provide a kind of four-wheel motor scooter structure, in which the front and rear frames are quickly interconnected by the quick connection device provided between the front and rear frames. It is assumed that it has a structure that is composed mainly of a frame, is convenient for disassembly and assembly, can be quickly disassembled and assembled, and is convenient for transportation.

[0004] A second object of the present invention is to provide a kind of four-wheel motor scooter structure, in which one vibration damper is installed between one side of the seat stem and the middle tube of the rear frame. In addition, it is assumed that the axis of the seismic reducer is located on the rotation radius of the center of the shaft pin of the connecting portion of the front and rear frames, so that the seismic reducer can effectively absorb the vibration of the rear frame.

[0005]

[Means for Solving the Problems]

 According to the invention of claim 1, the front frame is provided, a quick connection device having a shaft pin is provided at an appropriate position behind the pipes on both sides thereof, and a seat stem on which the seat is assembled is provided above the rear portion of the front frame. In addition, the front frame and the rear frame are provided at both ends of the front horizontal bar with bushings through which the shaft pins of the quick connection device of the front frame are passed and provided with fitting holes, respectively. The rear frame is rapidly connected to form the frame main body, and both ends of the front frame and the rear frame are allowed to swing independently, and a pin is provided between the middle pipe of the rear frame and one side of the seat stem of the front frame. The rear frame, to which one seismic reducer is attached, and the front wheel steering mechanism are provided in front of the front frame, and are mounted on the main seat of the steering mechanism. After the handle pivot joint seat with U-shaped side plate is attached to the steering rod part of the handle and it is pivoted with the handle middle tube of the handle, the handle and handle are designed by one control lever and one slide sleeve. The distance between the seats is adjustable, and a pair of connecting rods are provided at the bottom end of the steering rod. The steering mechanism and the front wheel vibration reduction mechanism are provided on both sides of the main seat, each of which has an upper swing. A parallel mechanism comprising a rod and a lower swing rod is pivotally mounted, one steering arm is attached to each of the swinging ends of the upper swing rod and the lower swing rod, and one front wheel is pivotally mounted. Each is connected to the connecting rod at the bottom end of the steering rod, and the connecting rod drives the steering rod when the steering wheel rotates, and The quake-absorbing mechanism is provided between the main seat and both lower swing rods, and one symmetrical vibration reducer is provided between the main seat and the two lower swing rods. And a set of bumpers attached to the rear end of the rear frame, and a drive mechanism provided on the rear frame and rear wheels on the drive shafts on both sides of the rear frame. A four-wheel motor that has an extremely good vibration reduction function, increases the feeling of comfort when driving, adjusts the inclination of the steering wheel and is convenient for operation, and the quick and convenient mounting and dismounting of the front and rear frames is convenient for transportation. It has a scooter structure. According to a second aspect of the present invention, in the structure of the four-wheel motor scooter according to the first aspect, the quick connection device of the front frame includes an outer sleeve provided at an appropriate position on both sides of the front frame at the rear of both pipes and provided with respective screws. A shaft pin having an operating wheel at one end is inserted into the inner hole of each of the outer sleeves, and a screw provided on the outer sleeve on the shaft surface of the shaft portion having a relatively large outer diameter of the two shaft pins. A screw groove is provided at a position corresponding to and the end of the screw is inserted into the screw groove, and when the shaft pin is turned, the shaft pin moves in the axial direction, and The connecting end of the end shrinks or extends into the inner hole of the outer sleeve, and between the relatively large outer diameter shaft portion of the two shaft pins and the positioning sleeve provided at the other inner hole of the outer sleeve. With one spring each When the operating wheel is loosened when the fitting holes of the bush provided on both sides of the front horizontal bar of the rear frame correspond to the connecting ends of the two shaft pins, the two shaft pins are acted by the spring. Under the force, it moves in the direction of the inward helical axis, and its connecting end is inserted into the fitting hole of the bush at both ends of the front horizontal bar of the rear frame, whereby both ends of the front and rear frames are quickly connected, and the front and rear frames are connected. The four-wheel motor scooter is characterized in that both ends can be formed to swing independently, and when the pin is turned in the opposite direction, the connecting end retracts into the outer sleeve and the front and rear frames are quickly separated. It has a structure. According to a third aspect of the present invention, in the structure of the four-wheel motor scooter according to the first aspect, the axis of the vibration reducer provided between the middle tube of the rear frame and the seat stem of the front frame is connected to the connecting portion of the front and rear frames. It has a four-wheel motor scooter structure that passes through the radius of gyration around the center of the axle pin, and this vibration absorber effectively absorbs the vibration of the rear frame. According to a fourth aspect of the present invention, in the structure of the four-wheel motor scooter according to the first aspect, a structure capable of adjusting a tilt angle of a steering wheel is provided on a steering rod portion at an upper end of a main seat of the steering mechanism. A handle pivot connection seat having a U-shaped side plate is attached to the steering rod portion at the upper end of the main sheet, and at least one corresponding recess is provided at the upper edge of both U-shaped side plates. The bottom end of the middle tube is connected below the U-shaped side plates with screws, and a control lever is pivotally mounted on one side of the handle middle tube with a shaft pin, and the inner end opening of the control lever is inside the handle middle tube. When the outer end of the control lever is pushed down by entering and engaging with the horizontal pin provided on the slide sleeve, and a spring provided above the slide sleeve. The inner end pushes up the slide sleeve and raises the locking pin at the lower end of the slide sleeve to disengage from the recess at the upper edge of the U-shaped side plate, whereby the middle pipe of the handle can be adjusted forward and backward. Also, when the control lever is released, the slide sleeve is lowered by the action of the spring, the locking pin is positioned in a set of recesses of the U-shaped side plate, the handle middle tube is positioned, and the handle and It has a four-wheel motor scooter structure that can adjust the seat distance to suit different types of drivers. According to a fifth aspect of the present invention, in the structure of the four-wheel motor scooter according to the first aspect, an anti-tilt rod is provided between two lower swing rods of the vibration reduction mechanism of the front wheel, and an excessive tilt of the vehicle body is provided. It has a four-wheel motor scooter structure that is characterized by preventing the

[0006]

[Embodiment of the invention]

 The present invention provides a four-wheel motor scooter structure having a handle design capable of adjusting a tilt angle, a good anti-shake effect, and a front-rear collision prevention design. It consists of a frame main body in which the front frame and the rear frame are connected to each other by a quick connection device provided in a connection portion, a seat stem provided with a seat provided above the front frame rear, and one side of the seat stem. It has a shock absorber installed between the pipes in the rear frame. The axis of the seismic attenuator passes over the radius of rotation of the center of the axle pin at the joint of the front and rear frames, and the seismic attenuator effectively absorbs the vibration of the rear frame. A front wheel steering mechanism is provided in front of the front frame, and controls front wheel direction change. In addition, a tilt angle adjusting device is provided at a connecting portion of the steering rod at the upper end of the steering mechanism and the middle pipe of the steering wheel, and the distance between the steering wheel and the seat can be adjusted as necessary to adapt to different types of drivers. . A pair of parallel mechanisms having an upper swing rod and a lower swing rod are pivotally mounted on both sides of the main seat of the steering mechanism, and a steering arm is attached to each side end of the lower swing rod and one front wheel is provided. The steering rod is driven by the connecting rod when the handle is rotated, causing the front wheels to change direction. One symmetrical vibration reducer is provided between both sides of the main seat and between the lower swing rods, and the front wheels absorb the vibrations generated during operation, and are combined with the vibration reducer provided on the rear frame. In addition, it has a very good vibration reduction effect as a whole frame, and improves the feeling of driving comfort. One drive system is provided on the rear frame to drive the rear wheels on both sides. The front and rear frames have front and rear bumpers to prevent damage to the vehicle body due to collision. The present invention is a traffic tool that is comfortable to ride, easy to operate, can adjust the tilt angle of the handle, and is fast and convenient to operate and disassemble and assemble the front and rear frames.

[0007]

【Example】

 As shown in FIGS. 1, 2, 3 and 4, the present invention comprises a frame main body in which a front frame 1 and a rear frame 2 are connected to each other by a quick connecting device provided at a connecting portion thereof. I have. In the quick connection device, outer sleeves 111 each having a screw 113 are provided at an appropriate position after the both pipes 11 of the front frame 1, and an operation wheel 124 is provided at one end of each of the inner holes 112 of the outer sleeves 111. The shaft pins 12 provided are inserted, and one screw groove 122 is provided at a position corresponding to the screw 113 provided on the outer sleeve 111 on the shaft surface of the shaft 121 having a relatively large outer diameter of the two shaft pins 12. When the end of the screw 113 is inserted into the screw groove 122 and the shaft pin 12 is turned, the shaft pin 12 moves in the axial direction, and the connecting end of the end is connected. Reference numeral 123 denotes a position provided in the inner hole 112 of the outer sleeve 111, which is contracted or extended into the inner hole 112 of the outer sleeve 111. One spring 125 is provided between the sleeves 126, and fitting holes 212 of bushings 211 provided on both sides of the horizontal bar 21 on the front side of the rear frame 2 correspond to connecting ends 123 of the both shaft pins 12. When the operating wheel 124 is turned and loosened, the two shaft pins 12 move in the direction of the inward helical axis under the action of the spring 125, and the connecting ends 123 of the front shaft 21 of the rear frame 2 The bush 211 is inserted into the fitting hole 212 so that the ends of the front and rear frames 1 and 2 can be quickly connected to each other, and both ends of the front and rear frames 1 and 2 can be formed to swing independently. When the pin 12 is turned in the opposite direction, the connecting end 123 contracts into the outer sleeve 111, and the front and rear frames 1 and 2 are quickly separated.

Next, please refer to FIG. 5 and FIG. A seat stem 13 provided with a set of seats 131 is provided above the rear part of the front frame 1, and a pin 141 is provided between one side of the seat stem 13 and the middle pipe 22 of the rear frame 2. 14, the axis of the seismic attenuator 14 passes through the turning radius of the center of the shaft pin 12 at the connection between the front and rear frames 1 and 2, and the seismic attenuator 14 activates the vibration of the rear frame 2. Absorb. Further, as shown in FIGS. 7, 8, 9, 10, 11, 12, 13, and 14, a front wheel steering mechanism 3 is provided in front of the front frame 1, and an upper end of a main seat 31 of the steering mechanism 3 is provided. A handle pivot connection seat 6 having a U-shaped side plate 61 is attached to a portion of the steering rod 311, and at least one corresponding concave portion 611 is provided on the upper edge of both U-shaped side plates 61. The bottom end of the handle 51 is connected to the lower side of both U-shaped side plates 61 by screws 62. A control lever 52 is pivotally mounted on one side of the handle middle tube 51 by a shaft pin 521, and an inner end opening 522 of the control lever 52 is provided. Is inserted into the horizontal pin 531 provided on the slide sleeve 53 in the middle tube 51 of the handle and is fitted. One spring 533 is provided above the slide sleeve 53, and when the outer end of the control lever 52 is pushed down, the inner end pushes up the slide sleeve 53 and raises the locking pin 532 at the lower end of the slide sleeve 53. Then, it is detached from the concave portion 611 on the upper edge of the U-shaped side plate 61, whereby the middle pipe 51 can be adjusted to swing back and forth. When the control lever 52 is released, the slide sleeve 53 is lowered by the action of the spring 533, and the locking pin 532 is positioned in the set of recesses 611 of the U-shaped side plate 61. Is positioned, and the distance between the handle 5 and the seat 131 is adjusted to suit drivers of different body types. A pair of parallel mechanisms each including an upper swing rod 32 and a lower swing rod 33 are provided on both sides of the main seat 31 of the steering mechanism 3, and a pair of upper swing rods 32 and lower swing rods 33 are respectively provided at side ends thereof. One steering arm 34 is assembled, and one front wheel 342 is pivotally mounted, and the steering rod 311 is driven by the connecting rod 341 when the steering wheel 5 rotates so that the front wheel 342 changes direction. One symmetrical vibration reducer 331 is provided between both sides of the main seat 31 and the two lower swing rods 33, and the front wheel 342 absorbs vibration generated during operation and is provided on the rear frame 2. Combined with the seismic attenuator 14, the overall frame achieves a very good seismic reduction effect and enhances driving comfort. A drive system 4 is provided on the rear frame 2 to drive rear wheels 41 provided on both sides, and at the same time, a front bumper 36 and a rear bumper 23 are provided at the front end and the rear frame 2 of the vehicle body, respectively. Prevents breakage. In addition, one tilt prevention rod 35 is provided between the lower swing rods 33 on both sides to prevent the vehicle body from tilting excessively.

[0009]

[Effect of the invention]

 Taken together, the present invention provides a traffic tool that is comfortable to sit down, easy to operate, can adjust the inclination of the steering wheel, is convenient for operation, and fast and easy to attach and detach the front and rear frames.

[Brief description of the drawings]

FIG. 1 is a side view of the frame of the present invention.

FIG. 2 is a plan view of the frame of the present invention.

FIG. 3 is a partial sectional view of the frame connecting device before and after the present invention.

FIG. 4 is an enlarged sectional view of the frame connecting device before and after the present invention.

FIG. 5 is a plan view before and after the frame connection before and after the present invention.

FIG. 6 is a side view after the frame connection before and after the present invention.

FIG. 7 is a side view of the present invention before and after frame connection.

FIG. 8 is a perspective view of the upper swing rod of the present invention.

FIG. 9 is a perspective view of the lower swing rod of the present invention.

FIG. 10 is a front view of the steering mechanism of the present invention.

FIG. 11 is a front view of the frame of the present invention.

FIG. 12 is a perspective view of the handle pivot seat of the present invention.

FIG. 13 is a partial cross-sectional view of the handle bar tilt angle adjusting structure of the present invention.

FIG. 14 is a side view of the steering rod tilt angle adjusting structure of the present invention.

[Explanation of symbols]

Reference Signs List 1 front frame 11 side tube 111 outer sleeve 112 inner hole 113 screw 12 shaft pin 121 shaft with relatively large outer diameter 122 screw groove 123 connecting end 124 operating wheel 125,533 spring 126 positioning sleeve 13 seat stem 131 seat 14,331 reduction Seismic device 141 Pin 2 Rear frame 21 Side bar 211 Bush 212 Fitting hole 22 Middle tube 23 Rear bumper 3 Steering mechanism 31 Main seat 311 Steering rod 32 Upper swing rod 33 Lower swing rod 34 Steering arm 341 Connecting rod 342 Front wheel 35 Tilt prevention rod 36 Front bumper 4 Drive system 41 Rear wheel 5 Handle 51 Middle handle pipe 52 Control lever 521 Shaft pin 522 Opening 53 Slide sleeve 531 Horizontal pin 532 Lock pin 6 Handle Pivot pipe seat 61 U-shaped side plate 611 Depression 62 Screw

Claims (5)

[Utility model registration claims] 1. A front frame, wherein a quick connecting device provided with a shaft pin is provided at an appropriate position at a rear stage of both side pipes, and a seat stem to which a seat is attached is provided above a rear stage of the front frame. A front frame and a rear frame are provided, and bushings are provided at both ends of the front horizontal bar, through which the shaft pins of the quick connection device of the front frame are inserted and provided with fitting holes. It is connected to form the frame main body, and both ends of the front frame and the rear frame are swingable independently, and between the middle pipe of the rear frame and one side of the seat stem of the front frame, one vibration reducer with a pin A steering mechanism for the rear frame and the front wheels, which is provided in front of the front frame, and is provided at the upper end of a main seat of the steering mechanism. After the handle pivot joint seat with U-shaped side plate is assembled to the grod portion and pivoted with the handle middle tube of the handle, the distance between the handle and the seat is reduced by the design of one control lever and one slide sleeve. The steering mechanism and the front wheel anti-vibration mechanism are provided with a pair of connecting rods at the bottom end of the steering rod, and are provided on both sides of the main seat. A parallel mechanism having a rod is pivotally mounted, one steering arm is attached to each of the swinging ends of the upper swing rod and the lower swing rod, and one front wheel is pivotally mounted. It is connected to the connecting rod at the bottom end, and the connecting rod drives the steering rod when the steering wheel rotates, turning the front wheel, One symmetrical vibration reducer is provided between both sides of the vehicle seat and between the two lower swing rods, and the vibration reduction mechanism absorbs the vibration generated by the front wheels during traveling. A set of bumpers respectively mounted on the rear frame, and a drive mechanism provided on the rear frame and rear wheels on the drive shafts on both sides of the bumper. The structure of a four-wheel motor scooter that has a comfortable feeling when driving and can adjust the inclination of the steering wheel and is convenient for operation, and the attachment and detachment of the front and rear frames is quick and convenient for transportation. 2. The four-wheel motor scooter according to claim 1, wherein the quick connection device of the front frame comprises:
An outer sleeve provided with a screw is provided at an appropriate position after the pipes on both sides of the front frame, and a shaft pin having an operation wheel at one end is inserted into an inner hole portion of each of the outer sleeves. One screw groove is provided at a position corresponding to the screw provided on the outer sleeve on the shaft surface of the shaft portion having a relatively large outer diameter, and an end of the screw is inserted into the screw groove. As the shaft pin is turned, the shaft pin moves in the axial direction, and the articulating end of the shaft pin retracts or extends into the bore of the outer sleeve, and the relatively large outer diameter of the two shaft pins. One spring is provided between the shaft portion and the positioning sleeve provided in the inner hole at the other end of the outer sleeve, and bush fitting holes provided on both sides of the front horizontal bar of the rear frame are provided on both shafts. Turn the control wheel to correspond to the connecting end of the pin. When it is loosened, the two shaft pins move inward in the direction of the helical shaft under the action of the spring, and their connecting ends are inserted into the fitting holes of the bushes at both ends of the front horizontal bar of the rear frame. The two ends of the frame are connected quickly, and both ends of the front and rear frames can be formed to swing independently.When the pin is turned in the opposite direction, the connecting end shrinks into the outer sleeve and the front and rear frames are quickly separated The structure of a four-wheel motor scooter, characterized by: 3. The structure of the four-wheel motor scooter according to claim 1, wherein the axis of the vibration reducer provided between the middle tube of the rear frame and the seat stem of the front frame is connected to the shaft pin of the connecting portion between the front and rear frames. The structure of a four-wheel motor scooter, which passes through a center turning radius, and the vibration reducer effectively absorbs vibration of a rear frame. 4. The structure of the four-wheel motor scooter according to claim 1, wherein a structure capable of adjusting a tilt angle of a steering wheel is provided at a steering rod portion at an upper end of a main seat of the steering mechanism, that is, a main seat of the steering mechanism. A handle pivot connection seat having a U-shaped side plate is attached to a steering rod portion at an upper end of the U-shaped side plate, and at least one corresponding concave portion is provided on upper edges of both U-shaped side plates,
The bottom end of the middle tube of the handle is connected below the U-shaped side plates with screws, and a control lever is pivotally mounted on one side of the middle tube of the handle with an axial pin. When the outer end of the control lever is pushed down, the inner end pushes up the slide sleeve when the outer end of the control lever is pushed down by inserting and engaging a horizontal pin provided on the slide sleeve in the tube, and a spring is provided above the slide sleeve. And raise the locking pin at the lower end of the slide sleeve to disengage it from the recess at the upper edge of the U-shaped side plate, so that the handle middle tube can be adjusted back and forth, and when the control lever is released, the spring The action sleeve lowers the slide sleeve, and its locking pin is positioned in a set of recesses of the U-shaped side plate, the handle middle tube is positioned, and the handle and seat are Characterized in that it is adapted to different forms of the driver to adjust the distance, four-wheeled motor scooter structure. 5. The structure of the four-wheel motor scooter according to claim 1, wherein one tilt prevention rod is provided between two lower swing rods of the front wheel vibration reduction mechanism to prevent excessive leaning of the vehicle body. The structure of a four-wheel motor scooter, characterized in that: