TWI626186B - Vehicle having two front wheels - Google Patents

Abstract

The invention relates to a vehicle with two front wheels, comprising: a frame, a steering assembly, and a Linkage assembly, two transmissions, two suspension devices, two steering seats and steering links. The steering assembly includes a steering handle and a main steering shaft tube. The connecting rod assembly includes a head tube, two side outer tubes, a first cross rod and two second cross rods. The head tube is connected to the frame and the main steering The shaft tube is pivotally disposed in the head tube, and the first cross rod and the second second cross rod are parallel to each other and pivotally connected to the head tube and the two side outer tubes, and each transmission device is connected with each side outer tube, and each The shock absorber and each of the steering bases are respectively disposed on each of the transmissions, and the steering link and the first crossbar are parallel to each other, and the main steering shaft tube and the second steering seat are connected.

Description

Vehicle with two front wheels

The invention relates to a vehicle with two front wheels, in particular to a vehicle with two front wheels which utilizes a steering seat to improve the strength of the connecting structure.

The personal transportation vehicles commonly used today generally include automobiles and locomotives. The vehicles in the form of locomotives are vehicles driven by engines or motors, mainly using two-wheel, three-wheel or four-wheel vehicles with steering directions, because of simple operation and convenient operation. The low price features have become the most commonly used means of transportation.

At present, there are vehicles equipped with two front wheels, which are locomotives equipped with a joint quadrilateral structure and two independent front suspension systems. Generally, the bottom end of the suspension device of such a vehicle is pivotally connected to the swing arm. Directly above the axle, the caliper member is fixed to the lower seat of the shock absorber. The structure is designed such that when the caliper member performs braking, the shock absorber needs to withstand the strong rotational thrust generated by the caliper member, and the shock absorber needs higher strength. The structural design increases the size, weight and cost of the shock absorber.

In the vehicle with two front wheels, the front wheel is turned by the main steering shaft tube to connect the steering link and the like to drive the two front wheel steering. Therefore, in addition to the connection between the steering link and the two front wheels, In addition to the vibration caused by the front wheel when driving, it also has the structural strength to smoothly transmit the steering force.

Therefore, based on the spirit of active invention and creation, the inventor conceived a structural design suitable for a vehicle having two front wheels, using the configuration of the caliper member and the brake connecting rod, so that the suspension device only bears the forward load force of the vehicle, thereby enabling The structure design of the miniaturized suspension device and the connection structure of the steering link and the two front wheels are enhanced by the steering seat to improve the structural strength of the vehicle body of the vehicle with the two front wheels, and the present invention has been completed after several research experiments.

The main object of the present invention is to solve the above problems and provide a vehicle with two front wheels, which utilizes the configuration of the caliper member, the brake connecting rod and the steering seat, and the structural design of the miniaturized suspension device and improves the structural strength of the vehicle body with the two front wheels. .

To achieve the above object, the vehicle with two front wheels of the present invention includes: a frame, a steering assembly, a link assembly, two transmissions, two suspension devices, two steering seats and a steering link. The steering assembly includes a steering handle and a main steering shaft tube. The connecting rod assembly includes a head tube, two side outer tubes, a first cross rod and two second cross rods. The head tube is connected to the frame and the main steering The shaft tube is pivotally disposed in the head pipe, and the first cross bar and the second second cross bar are parallel to each other and pivotally connected to the head pipe and the two side outer pipes. Each transmission device comprises a front fork assembly and a front wheel assembly. And a brake assembly, each front fork assembly includes a front fork tube, a side shaft tube and a swing arm, and each side shaft tube is respectively pivotally disposed in each side outer tube, each swing The two ends of the arm are respectively connected with each of the front fork tubes and each front wheel assembly, and each brake assembly is respectively sleeved on each front wheel assembly and connected with each front fork assembly, each shock absorber Correspondingly set to each In a transmission device, each side shaft tube is respectively connected with each of the front fork tubes and each of the steering bases, and the steering link and the first cross rod are parallel to each other, and the main steering shaft tube and the second steering seat are connected.

The main steering shaft tube may further include a steering arm provided with a steering link, and each of the steering bases further includes an extension arm for providing a steering link.

Each of the steering bases further includes a first support portion, and each of the side shaft tubes respectively passes through each of the first support portions and each of the front fork tubes.

Each of the above steering bases may further include two second supporting portions for sandwiching each of the front fork tubes.

Each of the front fork assemblies further includes a first connecting portion and a second connecting portion, each first connecting portion is located on each front fork tube, and each second connecting portion is located at each end of each swing arm Each of the two ends of each of the suspension devices respectively pivotally connects each of the first connecting portions and each of the second connecting portions.

Each of the front fork assemblies further includes a third connecting portion and a brake link, and each of the third connecting portions is respectively disposed on each of the front fork tubes, and is located at each of the first connecting portions and each swinging portion. Between the arm and each of the front fork tubes, each of the two ends of each of the brake links respectively pivotally connects each of the third connecting portions and each of the brake assemblies.

Each of the front wheel assemblies includes a tire, a wheel frame and an axle, and each of the two ends of each swing arm is pivotally connected to each of the front fork tubes and connected to each axle.

Each of the brake assemblies includes a caliper member and a brake disc, and each caliper member is correspondingly disposed with each of the brake discs, and each of the brake discs is respectively fixed to each of the wheel frames.

The extension line of each of the above suspension devices may not pass through the center of each axle.

The above summary and the following detailed description are intended to be illustrative of the scope of the invention, and the scope of the invention Explain it.

11‧‧‧ frame

12‧‧‧ steering assembly

121‧‧‧ steering handle

122‧‧‧Main steering shaft tube

1221‧‧‧ steering arm

13‧‧‧Connector assembly

131‧‧‧ head tube

132‧‧‧ lateral outer tube

133‧‧‧First crossbar

134‧‧‧Second crossbar

14‧‧‧Transmission

141‧‧‧Front fork assembly

1411‧‧‧Front tube

1412‧‧‧ Side shaft tube

1413‧‧‧Swing arm

1414‧‧‧First connection

1415‧‧‧Second connection

1416‧‧‧ Third connection

1417‧‧‧煞Car connecting rod

142‧‧‧front wheel assembly

1421‧‧‧ tires

1422‧‧‧wheel frame

1423‧‧·Axle

143‧‧‧煞车车成

1431‧‧‧caliper components

1432‧‧‧ brake disc

15‧‧‧Shock absorber

16‧‧‧ steering seat

161‧‧‧Extension arm

162‧‧‧First support

163‧‧‧second support

17‧‧‧Steering link

1 is a schematic view showing the main structure of a vehicle having two front wheels of the present invention.

2 is a partial structural view of a vehicle having two front wheels of the present invention.

3 is a partial exploded view of the vehicle with two front wheels of the present invention.

Figure 4 is a schematic view showing the structure of the A-A section of Figure 3.

1 to 4, which are respectively a schematic view of a main structure of a vehicle having two front wheels, a partial structural view, a partial structural exploded view, and a structural schematic view of a cross section taken along line A-A of FIG. The vehicle with two front wheels of the present invention includes: a frame 11, a steering assembly 12, a link assembly 13, two transmissions 14, two suspension devices 15, two steering seats 16, and a steering link 17.

The steering assembly 12 includes a steering handle 121 and a main steering shaft tube 122. The main steering shaft tube 122 has a steering arm 1221. The connecting rod assembly 13 includes a head tube 131, two side outer tubes 132, and a first horizontal tube. The rod 133 and the second rail 134 are connected to the frame 11 and the main steering shaft tube 122 is pivotally disposed in the head tube 131. The first rail 133 and the second rail 134 are parallel to each other and are pivotally connected to each other. The head tube 131 and the two side outer tubes 132, in detail, the central portion of the first rail 133 and the second rail 134 are pivotally connected to the head tube 131, and the first rail 133 and the second cross The two ends of the rod 134 are respectively pivotally connected to the two side outer tubes 132, whereby the first cross bar 133 and the second second cross bar 134 are rotatable about an axis extending substantially in the front-rear direction of the frame 11.

Each of the transmissions 14 includes a front fork assembly 141, a front wheel assembly 142 and a brake assembly 143. Each front fork assembly 141 includes a front fork tube 1411, a side axle tube 1412, and a rocking An arm 1413, a first connecting portion 1414, a second connecting portion 1415, a third connecting portion 1416 and a brake link 1417. Each front wheel assembly 142 includes a tire 1421, a wheel frame 1422 and an axle 1423. A brake assembly 143 is respectively disposed on each of the front wheel assemblies 142 and is coupled to each of the front fork assemblies 141, and includes a caliper member 1431 and a brake disc 1432, and each caliper member 1431 is respectively disposed correspondingly. Each of the brake discs 1432 is fixedly disposed on each of the wheel frames 1422, and each of the shock absorbers 15 is respectively disposed on each of the transmissions 14. Each of the side shaft tubes 1412 is respectively connected to each of the fronts. The fork pipe 1411 and each of the steering seats 16, the steering link 17 and the first cross bar 133 are parallel to each other, and are connected to the main steering shaft tube 122 and the two steering seats 16.

Each of the side shaft tubes 1412 is respectively pivotally disposed in each of the side outer tubes 132. The two ends of each swing arm 1413 are respectively pivotally connected to each of the front fork tubes 1411 and connected to each of the axles 1423. A connecting portion 1414 is located on each of the front fork tubes 1411, and each of the second connecting portions 1415 is located between the two ends of each of the swinging arms 1413. The connecting portion 1414 and each of the second connecting portions 1415, whereby the extension line of each of the suspension devices 15 forms a structure that does not pass through the center of each of the axles 1423, so that the front wheel assembly 142 absorbs the vibration force when the suspension device 15 absorbs the vibration force. The sway range of the front wheel assembly 142 due to the elastic expansion and contraction of the suspension device 15 is controlled by the swing arm 1413, which can reduce the sway caused by the action of the suspension device 15, and reduce the discomfort caused by excessive vibration of the vehicle occupant.

Each of the third connecting portions 1416 is respectively disposed on each of the front fork tubes 1411, and is located between each of the first connecting portions 1414 and each swing arm 1413 and each front fork tube 1411. The two ends of the brake link 1417 respectively pivotally connect each of the third connecting portions 1416 and each of the brake assemblies 143, whereby the rotational thrust generated by the caliper member 1431 clamping the brake disk 1432 when passing the brake passes through the brake connecting rod. 1417 is transmitted to the front fork tube 1411, so that the suspension device 15 only bears the forward load force of the vehicle, It is necessary to withstand the rotational thrust of the caliper member 1431 when braking, so that the structural design of the suspension device 15 can be miniaturized.

Each of the steering bases 16 includes an extending arm 161, a first supporting portion 162 and a second supporting portion 163. The center of the steering link 17 is disposed on the steering arm 1221, and the two ends of the steering link 17 are respectively disposed at each An extension arm 161, whereby the steering assembly 12 can pass through the main steering shaft tube 122, the steering arm 1221, the steering link 17, and the two steering seats 16, so that the two transmissions 14 rotate in the same direction, and the vehicle occupant can control Driving direction.

Each of the side shaft tubes 1412 is correspondingly disposed with each of the first supporting portions 162 and each of the front fork tubes 1411, and the second supporting portions 163 are connected to the two sides of the first supporting portion 162, each second The support portion 163 forms a triangular structure, and extends toward the front fork tube 1411 and sandwiches the front fork tube 1411. Thereby, the steering base 16 serves as a connection structure connecting the front fork tube 1411, the side shaft tube 1412 and the steering link 17, and is connected. The strength of the structure is improved, increasing the durability of the steering structure in a vehicle with two front wheels.

It can be seen from the above that the vehicle with the two front wheels of the present invention transmits the rotational thrust generated by the caliper member 1431 to the front fork tube 1411 through the brake link 1417, and the shock absorber 15 needs to bear the force to reduce the structure. Due to the miniaturization of the design, the steering seat 16 is driven to rotate the two transmissions 14, and the strength of the connection structure is also enhanced, thereby improving the durability of the steering structure.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

Claims (7)

A vehicle having two front wheels, comprising: a frame; a steering assembly comprising a steering handle and a main steering shaft tube; a connecting rod assembly comprising a head tube, two side outer tubes, and a first cross a rod and two second crossbars, the head tube is connected to the frame, and the main steering shaft tube is pivotally disposed in the head tube, and the first cross bar and the second cross bar are parallel to each other and pivotally connected to the head And a second transmission device, each of the transmission devices includes a front fork assembly, a front wheel assembly and a brake assembly, each of the front fork assemblies including a front fork tube and a a side shaft tube and a swing arm, wherein each side shaft tube is respectively pivotally disposed in each of the side outer tubes, and the two ends of each swing arm are respectively associated with each of the front fork tubes and each The front wheel assembly is connected, and each of the brake assemblies is respectively sleeved on the front wheel assembly and connected to each front fork assembly; and two suspension devices are respectively disposed correspondingly to Each of the transmissions; two steering seats, each of the steering bases includes a first support portion and two second support portions, each of The side shaft tubes are respectively connected to the respective front fork tubes and each of the steering tubes, and each of the side shaft tubes respectively passes through each of the first support portions and the each front fork tube, and the second and second fork tubes respectively The support portion interposes each of the front fork tubes; and a steering link is parallel to the first cross rod and connects the main steering shaft tube and the two steering bases. The vehicle having two front wheels according to claim 1, wherein the main steering shaft tube further comprises a steering arm provided with the steering link, and each of the steering base further comprises an extension for setting the steering link arm. The vehicle having two front wheels according to claim 1, wherein each of the front fork assemblies further includes a first connecting portion and a second connecting portion, wherein each of the first connecting portions is located at each of Fork Each of the second connecting portions is located between the two ends of each of the swinging arms, and each of the two ends of each of the shock absorbers respectively pivotally connects the first connecting portion and each of the second portions Connection. The vehicle having two front wheels according to claim 3, wherein each of the front fork assemblies further includes a third connecting portion and a brake link, and each of the third connecting portions is respectively disposed corresponding to the Each of the front fork tubes is located between each of the first connecting portions and the connection between each of the swinging arms and each of the front fork tubes, and the two ends of each of the brake links are respectively pivotally connected to each of the two a third connecting portion and each of the brake assemblies. The vehicle of the front wheel of the first aspect of the invention, wherein each of the front wheel assemblies comprises a tire, a wheel frame and an axle, and the two ends of each swing arm are respectively associated with each of the front forks The tube is pivotally connected and connected to each of the axles. The vehicle having two front wheels according to claim 5, wherein each of the brake assemblies includes a caliper member and a brake disc, and each of the caliper members respectively respectively engages each of the brake discs. A brake disc is respectively fixed on each of the wheel frames. A vehicle having two front wheels according to claim 5, wherein an extension line of each of the suspension devices does not pass through a center of each of the axles.