KR101165895B1 - Suspension appratus of three wheeled vehicle - Google Patents

Abstract

The present invention efficiently absorbs or cushions the shock generated when driving by mounting a shock absorber that performs multi-stage operation in the vertical direction on the front and rear wheels of a tricycle equipped with a pair of steerable left and right front wheels and a rear wheel, respectively. In addition, the shock absorber can be assembled at a constant position so that deformation or flow such as left and right twists does not occur, and also prevents the occurrence of deformation or eccentricity such as left and right twists in the front wheels. It is possible to minimize the occurrence of the suspension of the suspension mounted on the tricycle can greatly improve the service life, and to provide a tricycle suspension that can reduce the maintenance cost.

Description

Suspension appratus of three wheeled vehicle}

The present invention relates to a suspension of a tricycle, and more particularly to a suspension and a shock absorbing function for driving efficiently by a suspension mounted on a tricycle provided with a pair of left and right front wheels and one rear wheel which can be steered. It is.

In general, when a two-wheeled vehicle, such as a motorcycle, rotates a road while driving, a safe cornering may be performed only when the inclination of the driver coinciding with the vehicle body forms an angle with the ground in the driving direction in proportion to the driving speed.

That is, the direction change function during driving or stopping is performed by the driver's attitude to change direction (body tilt and body tilt matched with the body), and the turning radius is also minimized. The steering wheel operation should be understood as an auxiliary function means, and in practice the attitude of the driver in line with the vehicle body determines the turning radius.

Therefore, even in the case of tricycles (motorcycles, bicycles) equipped with a pair of left and right front wheels and rear wheels, two front wheels are always grounded and grounded regardless of road conditions, rotation angle, and driving speed. Free body tilt in accordance with the structure is maintained to 100%, or the steering device function of the four-wheeled vehicle 100% to apply the safe operation.

In addition, a four-wheeled vehicle such as a car also includes the role of tilting (a tilt of the body and the driver's posture in the case of a two-wheeled vehicle) due to the body weight and structure when cornering the road while driving.

That is, in order to minimize the turning radius when changing the direction, the parts that perform the front wheel rotation and the front wheel tilt function simultaneously with the operation of the steering wheel serve as a posture (body tilt) of the motorcycle driver.

As described above, the four-wheeled vehicle is a structure of a technology in which mechanical parts perform a tilting function while driving, and a two-wheeled vehicle is a structure in which a function is shifted to a driver's body during driving. Partial misapplication can lead to redundant functions, complex structures, and increased manufacturing costs.

Conventionally, a three-wheeled vehicle equipped with a pair of left and right front wheels and rear wheels is disclosed in Korean Patent Publication No. 0340597, Japanese Patent Application Laid-Open No. H6-6-171569, Japanese Patent Application Publication No. 56-82681, and Japanese Patent Application Laid-Open No. 1 -No. 229787 is disclosed, but the common features of the published patents apply the structure of the four-wheeled vehicle did not escape the overlapping function.

Among such conventional tricycles, the problems of Korean Patent Publication No. 10-0340597 will be described below.

First, four unnecessary parts are applied indirectly by applying the basic technology of the four-wheeled vehicle from the steering wheel to the pitman arm, ball joint, tie rod, and knuckle arm during the transfer from the steering wheel to the left and right front wheels during the change of direction. Since the same structure as the inside of the steering shaft is additionally built to the left and right to combine the bridge member and the front wheel support member, the structure is complicated, the weight can not be reduced to light weight, the manufacturing cost is high, and the body The upright posture function resulted in a dysfunction that prevented cornering.

In other words, when applied to a motorcycle that requires high-speed driving, the speed itself is a function of maintaining an upright posture when rotating during driving.If the acceleration of the upright posture is accelerated by a mechanical device, the body is difficult to be inclined and cornering is difficult. Even if the function was developed, the moment it was restored to the small obstacles such as stones and uneven roads on the ground, the function was restored, which resulted in the occurrence of an accident that lost the cornering direction and caused the rollover accident. That is, it is because the structure which cannot incline the knuckle arm by using the technique of a four-wheeled vehicle partially.

In addition, the body upright posture maintenance device does not naturally incline toward the driver's body when turning (when dragging) during stopping, so the turning radius cannot be minimized. Motorcycles that require high-speed driving must be equipped with separate shock absorbers on each of the two front wheels, but there is a safety problem because the front wheels are not equipped with a separate shock absorber. For this purpose, the inclination of the body is greatly required, and the length and distance of the upper link, the lower link, the parallel link, the tie rod, the regulating flange, and the inward flange have to be increased, which makes the vehicle wider and obstructs the weight reduction, especially in narrow alleyways. Cannot be applied, and if the tilt is limited, the radius of rotation increases, making it impossible to apply. There were a lot of problems such as.

In particular, the conventional prior art can not be mounted on a conventional two-wheeled frame (chassis), and because a separate frame suitable for the structure must be manufactured, it must be an expensive product when applied to a general low-speed bicycle, the rigidity and function of a motorcycle Due to the limitations of the current situation, the above-described conventional techniques have been problems due to attempts to realize the suspension and steering functions of the reverse tricycle based on the technology of the four-wheeled vehicle.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the present invention is a multi-stage operation in the vertical direction of the front and rear wheels of the three-wheeled vehicle equipped with a pair of left and right steering wheels that can be steered to cushion and shock The shock absorber with absorbing function can be installed to efficiently perform shock absorbing and shock absorbing functions while running. It is an object of the present invention to provide a suspension of a tricycle that can prevent the occurrence of deformation or eccentricity such as left and right twisting the wheel in advance.

In order to achieve the above object, the present invention is a suspension device for a three-wheeled vehicle equipped with a steering wheel and a pair of left and right wheels, each of which is mounted on the inside of the pair of front wheels and is operated in multiple stages in the vertical direction during shock driving to cushion and A shock absorber for shock absorption, a toe-in setting means for ensuring that the shock absorber can be assembled at a constant position at all times, and a deformation for preventing deformation or eccentricity of wheels of the front wheels in advance. It includes a prevention means, the end of each link member is installed in the outer casing of each shank absorber in the form of a deformation preventing means are connected to each other by a support bolt and wrapped around, and on both ends of the fastening member inside each link member It is provided with a suspension of a tricycle characterized in that the ball bearing is configured to be mounted.

In addition, the toe setting means is formed at the upper end of the shank absorber and the lower end of the support member, respectively, and is formed of stepped uneven fixing grooves coupled to each other, and the shank absorber is characterized in that the telescopic damper type.

The toe setting means may include a concave fixing groove which is formed at an upper end of the shank absorber and a protruding fixing piece which is formed at a lower end of the support member and is inserted into the concave fixing groove.

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As described above, the present invention is generated when driving by mounting a shock absorber having a multi-stage operation vertically and vertically on the front wheels of a three-wheeled vehicle equipped with a steerable left and right pair of front wheels and rear wheels, respectively. The shock absorber can be effectively absorbed or cushioned, and the telescopic shank absorber can be assembled at a constant position so that deformation or flow such as left and right twists does not occur. This prevents the occurrence of this phenomenon in advance to minimize the occurrence of the failure of the suspension mounted on the tricycle can greatly improve the service life, and it is equipped with many advantages such as reducing the maintenance cost It is a very useful invention.

1 is a perspective view showing a tricycle equipped with a pair of front wheels according to the present invention.
FIG. 2 is a front view of FIG. 1
3 is an exploded perspective view of main parts of FIG. 1;
4 is a longitudinal cross-sectional view of the main part of FIG.
5 is an exploded perspective view showing a coupling state of the steering stem and the mounting parts according to the present invention;
6A to 6C are a plan view, a longitudinal sectional view, and a front view respectively showing an upper steering member according to the present invention;
7A and 7B are front views each showing an assembled state of the shank absorber and the support member according to the present invention;
8A and 8B are a longitudinal sectional view and a side view showing an operating state of the lever holder, respectively, when controlling the tilt of the vehicle body according to the present invention;
9a to 9c are longitudinal sectional views respectively showing front views and operating blocks of the locking shaft and the stopper according to the present invention;
10A and 10B are front views each showing a stepped and inclined driving state of a tricycle according to the present invention.
11A and 11B are plan views showing left and right steering handle states of a tricycle according to the present invention, respectively.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object will be described in detail.

1 is a perspective view showing a tricycle equipped with a pair of front wheels according to the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is an exploded perspective view of the main part of FIG. 1, and FIG. 4 is a longitudinal sectional view of the main part of FIG. 1. 5 is an exploded perspective view illustrating a coupling state of a steering stem and mounting components according to the present invention, and FIGS. 6A to 6C are a plan view, a longitudinal cross-sectional view and a front view respectively showing an upper steering member according to the present invention, and FIGS. 7A and FIG. 7b is a front view showing the assembled state of the shank absorber and the support member according to the present invention, respectively.

8A and 8B are longitudinal cross-sectional views and side views showing the operating states of the lever holders when the vehicle body tilt control according to the present invention, respectively, and FIGS. 9A to 9C are front views and operating blocks of the locking shaft and the stopper according to the present invention. Are longitudinal cross-sectional views, respectively.

10A and 10B are front views showing stepped and inclined driving states of the tricycle according to the present invention, respectively, and FIGS. 11A and 11B are plan views showing left and right steering operation states of the tricycle according to the present invention, respectively.

According to the present invention, the steering member mounting portion 32 is formed in front of the steering stem 10 detachably coupled to the frame (= chassis) 1 of the tricycle, and the handle 20 is formed at the rear of the steering stem 10. The handle mounting shaft 30 to be mounted is integrally formed with the steering member mounting portion 32, and the steering member mounting portion 32 and the handle mounting shaft (of the steering stem 10) are disposed at an upper end of the steering wheel mounting shaft 30. A fixing hole 42 formed at one end of the fixing holder 40 is inserted in order to support each other 30, and the other end of the fixing holder 40 is fastened to the upper end of the steering member mounting part 32 by a bolt or the like.

In addition, each support member 70 is mounted on the upper side of the pair of front wheels 50, each of which is mounted on the upper end of the telescopic dampers 60 of the telescopic dampers type, which functions as a multi-stage operation in the vertical direction when the vehicle is driven, thereby cushioning and absorbing shock. ) Is inserted and fastened by bolts or the like, and fixed hinge pieces 72 protrude from both the front and rear portions at the upper and lower ends of the respective supporting members 70.

In addition, the toe-in setting means for ensuring that the shank absorber 60 is always assembled at a predetermined position is coupled to the upper end of the shank absorber 60 and the lower end of the support member 70, respectively. To form the concave-convex fixing grooves 62 and 74, or in another embodiment, to form the concave convex fixing groove 64 in the upper end of the shank absorber 60, the lower end of the support member 70 fixed in the concave The protruding fixing piece 76 may be inserted into the groove 64 to be coupled to each other.

In addition, deformation preventing means for preventing in advance the phenomenon in which the deformation or eccentricity such as left and right twists on the wheel 54 of the front wheel 50 is generated in the outer case 52 of each shank absorber 60 when driving. The plurality of link members 140 are rotatably installed in a form in which they are interconnected and enclosed by a coupling means, the coupling means comprising: a support bolt 150 coupled to an end of each link member 140, and each of the link members 140. It consists of an outer case 52 of the shank absorber 60 and a ball bearing 120 mounted to both ends of the fastening member inside the link member 140.

In addition, the support member 70 is connected to the upper and lower portions of the front center of the steering member mounting part 32 to interlock the rotational direction of the pair of front wheels 50 while rotating left and right according to the manipulation of the handle 20. ) Is inserted into the upper front and rear steering members 80 and 90 and the lower steering member 100 so as to be rotatably fastened, and guide long grooves 106 are formed at both sides of the lower steering member 100. In the centers of the upper front and rear steering members 80, 90 and the lower steering member 100, first fastening holes 82, 92, and 102 are formed, respectively. The first and second fastening holes 82, 92, and 102 of the first and second fastening parts 33 and 34 installed in the center of the front surface of the steering member mounting part 32, and the fastening member 110. In the first fastening holes 82, 92, and 102 at both ends, smooth rotation and rigidity of the upper front and rear steering members 80, 90 and the lower steering member 100 can be achieved. One ball bearing 120 and tapered roller bearing 122 are press fit.

In addition, fixed hinge pieces 72 protruding from both the front and rear sides of the upper and lower ends of the other end of the support member 70 at the ends of the upper front and rear steering members 80 and 90 and the lower steering member 100, respectively. Second fastening holes 84, 94 and 104 are inserted into and fastened so that the fastening members 112 are fastened through the respective second fastening holes 84, 94 and 104. Ball bearings for smoothly guiding the rotation of the upper front and rear steering members 80, 90 and the lower steering member 100 in the second coupling holes 84, 94, 104 at both ends of the fastening member 112. 120 is press-fitted.

In addition, both ends of the upper front and rear steering members 80 and 90 and both ends of the lower steering member 100 have strengths of the upper front and rear steering members 80 and 90 and the lower steering member 100, respectively. Reinforcement bracket 130 for supporting the reinforcement to prevent separation is fastened by a bolt or the like.

In addition, the brake lever 160 is rotatably installed at the lower end of the one end of the handle 20 by the vehicle body tilt control means, and an insertion hole formed in the lever holder 162 for mounting the brake lever 160 ( 164, when the brake lever 160 is pulled or pulled and then pushed upwards of the insertion hole 164, the locking lever is lowered by its own weight and released when the brake lever 160 is pulled and released in the locked and locked state. The shaft 166 is inserted, and the master cylinder 170 for supplying the working fluid by pressing the brake lever 160 on one side of the steering member mounting portion 32 of the steering stem 10 is supplied with a bolt or the like. The brake pads are pushed by the working fluid supplied through the master cylinder 170 to the lower end of the steering member mounting part 32 of the steering stem 10. A caliper 190 for pressing and braking the brake disc 180 installed at the lower end of the lower steering member 100 is installed.

In addition, a vehicle body tilt locking and releasing means is mounted at the centers of the upper ends of the upper front and rear steering members 80 and 90, and the upper front and rear steering members 80 and 90 are used as the body tilt locking and releasing means. In the center of the upper end of the operation block 200 is embedded in the form, the through-hole 202 is formed in the front center of the operation block 200, the insertion hole 204 is formed on the upper portion of the operation block 200 And a seating groove 206 is formed at a lower end of the operation block 200 opposite to the insertion hole 204, and a fixing groove 214 is formed at an outer circumferential surface of the through hole 202 of the operation block 200. The circlip 212 is inserted into the rear of the fixing groove 214 so that the end of the steering stem 10 is inserted into the fixing groove 12 of the steering stem 10 while maintaining the upright position of the vehicle body. A locking shaft 210 is inserted for fixing.

In addition, a return button 220 for releasing the upright posture of the vehicle body is protruded and inserted into the insertion hole 204 of the upper portion of the operation block 200, and the mounting groove 206 of the operation block 200 is provided in the insertion hole 204. 1 is a stopper 230 is installed, the stopper 220 is formed between the lower end of the return button 220 in the operation block 200 and the upper end of the first spring 230, the through-hole 242 through which the locking shaft 210 passes. 240 is inserted into the second spring 250 through which the locking shaft 210 passes and is supported by the circlip 212 in the through hole 202 of the operation block 200 behind the stopper 240. It is installed and configured.

As shown in Figs. 1 to 10b, the steering device of the steerable left and right paired front wheels and one rear wheel of the present invention configured as described above is telescopic inside the pair of front wheels 50, respectively. Since the damper-type shank absorber 60 is mounted, the shank absorber 60 can be operated in multiple stages in the vertical direction during traveling, so that even a small shock can be efficiently absorbed and shock absorbed.

In addition, the support member 70 is inserted into each upper end of the shank absorber 60 and fastened by a bolt or the like. At this time, the upper end of the shank absorber 60 is a toe setting means for directing the front wheels inwardly as shown in FIG. 7A. Since the stepped concave-convex fixing grooves 62 and 74 are formed at the lower ends of the support members 70, respectively, the shank absorbers 60 can be assembled at a constant position at all times so that the shank absorbers 60 can be assembled. Deformation and flow, such as the left and right twist of the) can be prevented, and also the other toein setting means to form a concave fixing groove 64 in the upper end of the shank absorber 60, as shown in Figure 7b, the support The lower end of the member 70 may be formed in the projection fixing piece 76 is inserted into the concave fixing groove 64 and coupled to each other, other toe setting means may be applied.

In addition, an end of each link member 140 is installed in the outer case 52 of each shank absorber 60 in a form of being connected to each other by a support bolt 150, and the respective shank absorbers 60 are installed. Since the ball bearing 120 is mounted at both ends of the outer case 52 and the fastening member inside the link member 140, the vertical and vertical operation is performed according to the guide of the link member 140 when the respective shank absorbers 60 are operated. Therefore, it is possible to effectively prevent a phenomenon in which deformation or eccentricity such as left and right twist occurs in the wheel 54 of the front wheel 50 while driving.

One; Frame 10; Steering stem
12; A fixing groove 20; handle
30; Handle mounting shaft 32; Steering member mounting
33; A first fastening portion 34; 2nd fastening part
40; Fixed holder 42; Fixed ball
50; Front wheel 52; Outer case
54; Wheel 60; Shank Absorber
62,74; Uneven fixing groove 64; Recessed groove
70; Support member 72; Fixed hinge piece
76; Protruding fixture 80; Upper front steering member
90; Upper rear steering member 100; Lower Steering Member
82,92,102; First fasteners 84,94,104; 2nd fastener
106; Guide cabinet 110,112; The fastening member
120; Ball bearing 122; Tapered roller bearing
130; Reinforcing bracket 140; Link members
150; Support bolt 160; Brake lever
162; Lever holder 164; Insert ball
166; Locking shaft 170; Master cylinder
180; Brake disc 190; Caliper
200; Actuation block 202; Through hole
204; Insertion hole 206; Seat groove
210; Locking shaft 212; Circlip
214; Fixing groove 220; L button
230; First spring 240; Stopper
242; Through-hole 250; 2nd spring

Claims (4)

In the suspension system of a tricycle equipped with a steering wheel and a pair of left and right wheels,
Mounted on the inside of the pair of front wheels 50, respectively, the shank absorber 60 and the shank absorber 60 for buffering and shock absorbing function by operating in multiple stages up and down vertically when traveling, and the shank absorber 60 can always be assembled in a fixed position. A toe-in setting means for displacing and deformation preventing means for preventing a phenomenon in which deformation or eccentricity is generated in the wheels 54 of the front wheels 50,
In the outer case 52 of each shank absorber 60 as the deformation preventing means, end portions of the respective link members 140 are installed in the form of being interconnected and wrapped by the support bolts 150. (140) Suspension device of a tricycle, characterized in that the ball bearing 120 is mounted on both ends of the fastening member inside.
According to claim 1, wherein the toe setting means is formed in the upper end of the shank absorber (60) and the lower end of the support member (70), respectively, is formed of stepped irregularities fixing grooves 62, 74, the shank Absorber 60 is a suspension device of a tricycle, characterized in that the telescopic damper type.
According to claim 1, wherein the toe setting means is formed in the lower end of the concave fixed groove 64 and the support member 70 formed on the upper end of the shank absorber 60 is inserted into the concave fixed groove 64 and mutually coupled Suspension of a tricycle, characterized in that consisting of a projecting fixing piece (76).
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