KR101165894B1

KR101165894B1 - Car body slope brake appratus of three wheeled vehicle

Info

Publication number: KR101165894B1
Application number: KR1020100034701A
Authority: KR
Inventors: 진성현
Original assignee: 진성현
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2012-07-13
Also published as: KR20110115284A

Abstract

According to the present invention, the vehicle body tilt control means of the vehicle body tilt brake device mounted on a three-wheeled vehicle equipped with a pair of steerable left and right front wheels and one rear wheel can easily brake the vehicle body in accordance with a situation so that it is difficult for the driver to control it. Not only can you get on and off the cargo safely, but it can also function as a parking device when you're parked, and the vehicle's body control can be controlled by road loads such as icy roads or heavy loads. When it is difficult or when you want to drive at low speed, you can keep the vehicle in an upright position to drive safely, minimizing the occurrence of traffic accidents, and when the vehicle body tilt is unlocked, you can drive at high speed and turn the road (corner). Perfectly maintains the riding position of the motorcycle without being limited by angle or driving speed A vehicle body tilt brake system of the tricycle can be provided.

Description

Car body slope brake appratus of three wheeled vehicle}

The present invention relates to a vehicle body tilt braking device of a three-wheeled vehicle, and more particularly, the vehicle body tilt can be easily adjusted according to a situation by a vehicle body tilt braking device mounted on a three-wheeled vehicle provided with a pair of left and right front wheels and one rear wheel which can be steered. By braking, the driver can get on and off safely even when he / she loads heavy cargo.It can function as a parking device when stopping and maintain the vehicle body in an upright position when it is difficult for the driver to control the vehicle due to road conditions or loaded cargo. It is to be able to drive safely.

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 vehicle body tilt by a vehicle body tilt brake device mounted on a three-wheeled vehicle provided with a pair of left and right front wheels and one rear wheel capable of steering Depending on the situation, the brakes can be easily braked and the pair of front wheels and shank absorbers function as a parking device at the moment of braking, allowing the driver to get on and off safely even when he / she carries heavy cargo to control. In addition, when the driver is difficult to control the body due to road conditions such as icy roads or heavy loads, or to drive at low speed, a safety device that can safely drive the vehicle is maintained in an upright position. The slope of the body of the tricycle to minimize the occurrence of traffic accidents when driving The purpose is to provide value.

In order to achieve the above object, the present invention is a three-wheel vehicle body tilt braking device provided with a steering wheel, a pair of left and right wheels, the upper front and rear and lower steering members of the steering stem detachably coupled to the frame. Vehicle body tilt control means for pressing and braking the brake disc installed on the lower steering member by pulling the brake lever installed on the handle mounted on the handle mounting shaft formed integrally with the steering member mounting portion to which the shaft is coupled, and the steering stem. There is provided a vehicle body tilt brake device comprising a vehicle body tilt locking and releasing means embedded in the upper front and rear steering members for releasing the locking and locking state for maintaining the vehicle body in an upright state. .

In addition, the vehicle body tilt control means is inserted into the brake lever rotatably installed at the lower end of the handle, and inserted into the insertion hole formed inside the lever holder for mounting the brake lever is pulled and pushed after the brake lever is locked and locked A locking shaft for lowering and unlocking when the brake lever is pulled in a closed state, and a master cylinder coupled to one side of the steering member mounting part to pressurize the brake lever as it is pulled to supply a working fluid; The caliper is installed at the lower end of the steering member mounting unit and is configured to press and brake the brake pad installed at the lower end of the lower steering member by pushing the brake pad therein by the working fluid supplied through the master cylinder.

In addition, the vehicle body tilt locking and releasing means is an operation block embedded in the upper center of the upper front and rear steering member, and is installed through the front of the operation block so that the end is fixed to the fixing groove of the steering stem when maintaining the upright position of the vehicle body. A locking shaft for fixing the steering stem as it is inserted, a return button protrudingly inserted into the upper portion of the operating block to release the upright position of the vehicle body, and installed inside the operating block, And a stopper which is operated upon locking and releasing by contact, and a second spring which is installed inside the operation block to provide elastic restoring force during operation of the locking shaft and the return button.

In addition, a through hole through which the locking shaft is inserted is formed in the front center of the operation block, and an insertion hole through which a return button is protruded is formed at an upper portion of the operation block, and a first spring is provided at a lower end of the operation block opposite to the insertion hole. It is characterized in that the mounting groove is inserted is formed.

The stopper is installed between the lower end of the return button in the through hole formed in the operation block and the upper end of the first spring to form a through hole through which the locking shaft penetrates, and an outer circumferential surface of the locking shaft when the lock is released and locked. A fixing groove fixed to an inner circumferential surface is formed in a recess, a circlip is inserted into an outer circumferential surface of the locking shaft behind the fixing groove, and the second spring is supported by the locking shaft through a locking shaft through a through hole of an operation block behind the stopper. It is characterized by being installed.

As described above, according to the present invention, the vehicle body tilt control unit of the vehicle body tilt brake device mounted on a three-wheeled vehicle provided with a pair of steerable left and right front wheels and one rear wheel can be easily braked according to the situation. The driver can get on and off safely even when he / she loads heavy cargo, and it can function as a parking device when stopping and the body tilt lock and release means can be used for road conditions such as icy roads or heavy load cargo. When the driver is difficult to control the vehicle body or when driving at low speed, the driver can keep the vehicle in an upright position to drive safely, minimizing the occurrence of traffic accidents, and when the vehicle body tilt lock is released, high-speed driving is possible. Riding a two-wheeled vehicle without being limited by the angle of rotation (corner) of the road or driving speed It is a very useful invention has many advantages, such as that fully maintain a Composition comprising a.

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 vehicle body tilt brake device of the tricycle provided with a pair of steerable left and right front wheels and one rear wheel of the present invention configured as described above is provided with a vehicle body tilt control means. Pulls the brake lever 160 rotatably installed at the lower end of the handle 20, the working fluid pressurized by the master cylinder 170 installed on one side of the steering member mounting part 32 of the steering stem 10. Is supplied to push the brake pads inside the caliper 190 installed at the lower end of the steering member mounting part 32 of the steering stem 10, thereby compressing the brake disc 180 installed at the lower end of the lower steering member 100. Braking

At the same time, the lower steering member 100 interlocked with the brake disc 180 is braked so that the left and right pair of front wheels 50 and each shank absorber 60 function as a stand function (parking device). Therefore, the driver can easily brake the vehicle's inclination according to the situation so that the driver can safely get on and off even with heavy cargo.

In addition, when the driver needs to leave the driver's seat, the driver pushes the locking shaft 166 protruding as shown in FIG. 8B into the insertion hole 164 of the lever holder 162 while pulling the brake lever 160 and the brake lever 160. ), The vehicle body tilt can be maintained in a braking state as shown in FIG. 8A, and when the brake state is to be released, when the brake lever 160 is pulled and released, the locking shaft 166 is braked down by its own weight. The state can be easily released.

In addition, since the vehicle body tilt locking and releasing means is mounted at the upper center of the upper front and rear steering members 80 and 90, when the driver controls the vehicle body due to the ice road or the heavy load, it is difficult to control the vehicle at low speed. When pressing the locking shaft 210 protruding in the front center of the operation block 200 embedded in the upper center of the upper front and rear steering members 80, 90, the vehicle body can always maintain the upright posture.

That is, when the locking shaft 210 is pressed, the circlip 212 inserted into the outer circumferential surface of the locking shaft 210 pushes the second spring 250 through the through hole 202 of the operation block 200. When the fixing groove 214 of the locking shaft 210 is engaged with the inner circumferential surface of the through hole 242 of the stopper 240, the end of the locking shaft 210 is mounted to the steering member mounting portion of the steering stem 10. 32) The driver can control the vehicle body due to road conditions such as ice roads or heavy loads, since the steering groove 10 can be inserted and fixed to the fixed groove 12 formed on the front side to maintain the lock state to prevent the steering stem 10 from moving left and right. When it is difficult or when you want to drive at low speeds, you can keep your body in an upright position and run in a safe state so that you do not overturn.

In particular, the left and right pair of front wheels 50 and the shank absorber 60 absorb and cushion separate ground shocks while driving in the locked state, so that they can be safely driven without being transmitted to the vehicle body. As a result, it is required to control the vehicle to apply a slight force so that the center of gravity of the body is not biased, and it is possible to drive at a low speed so as not to overturn with a short time of skill.

Meanwhile, when the one-touch return button 220 protrudes into the insertion hole 204 above the operation block 200 in the locked state, the lower end of the return button 220 in the operation block 200 is the stopper. While pressing down the upper end of the 240 to compress and push the first spring 230 inserted into the seating groove 206 formed at the lower end of the operation block 200, and at the same time, the fixing groove of the locking shaft 210 While the lock shaft 210 penetrates through the inside of the through hole 202 of the operation block 200 while the 214 is caught in the inner circumferential surface of the through hole 242 of the stopper 240, the circlip 212 is pushed. By the elastic restoring force of the second spring 250, the locking shaft 210 can be returned to its original position while reversing in the forward direction.

Accordingly, as the vehicle body tilt lock state is released as described above, high speed driving of the tricycle is possible, and the riding position of the two-wheeled vehicle can be perfectly maintained without being limited by the rotational (corner) angle of the road or the driving speed.

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

In the body tilt brake system of a tricycle equipped with a steering wheel and a pair of left and right wheels,
Handle mounting shaft formed integrally with the steering member mounting portion 32 to which the upper front and rear and lower steering members 80, 90, 100 of the steering stem 10 detachably coupled to the frame 1 are coupled ( Vehicle body tilt control means for pressing and braking the brake disc 180 installed in the lower steering member 100 as the brake lever 160 installed on the handle 20 mounted on the vehicle 30 is pulled out;
A vehicle body tilt locking and releasing means embedded in the upper front and rear steering members 80 and 90 to release the locking and locking state for fixing the steering stem 10 to maintain the vehicle body in an upright state. Body tilt brake device of a three-wheeled vehicle.

According to claim 1, wherein the vehicle body tilt control means is installed on the inside of the lever holder 162 for mounting the brake lever 160 and the brake lever 160 rotatably installed at the lower end of the handle 20, A locking shaft 166 inserted into the formed insertion hole 164 and lowered by its own weight to be unlocked when the brake lever 160 is pulled in the locked and locked state when the brake lever 160 is pulled and pushed in; It is fastened to one side of the steering member mounting portion 32, the master cylinder 170 for supplying a working fluid by pressing the brake lever 160 as the pull, and installed on the lower end of the steering member mounting portion 32 and the master Consists of a caliper 190 for pressing and braking the brake disk 180 installed on the lower end of the lower steering member 100 by pushing the brake pads inside by the working fluid supplied through the cylinder 170. Vehicle body tilt brake system of the tricycle according to claim.

According to claim 1, wherein the vehicle body tilt lock and release means and the operation block 200 is embedded in the upper center of the upper front and rear steering member 80, 90, and penetrates the front of the operation block 200 It is installed on the locking shaft 210 for fixing the steering stem 10 as the end is inserted into the fixing groove 12 of the steering stem 10 when maintaining the upright position of the vehicle body, and the upper portion of the operation block 200 Return button 220 protrudingly inserted to release the upright posture of the vehicle body, and installed inside the operation block 200 to lock and release by contact between the locking shaft 210 and the return button 220. An operating stopper 240 and a second spring 250 installed inside the operation block 200 to provide elastic restoring force during the operation of the locking shaft 210 and the return button 220 may be configured. Body tilt brake of tricycle.

According to claim 3, the through hole 202 is formed in the front center of the operation block 200 is inserted into the locking shaft 210, the return button 220 is inserted into the upper portion of the operation block 200 protruding. The insertion hole 204 is formed, the vehicle body of the tricycle characterized in that the seating groove 206 is inserted into the first spring 230 is formed at the lower end of the operation block 200 facing the insertion hole 204 Tilt brake system.

According to claim 3 or 4, wherein the stopper 240 is installed between the lower end of the return button 220 and the upper end of the first spring 230 in the through hole 202 formed in the operation block 200 is locked A through hole 242 through which the shaft 210 penetrates is formed, and a fixing groove 214 fixed to an inner circumferential surface of the through hole 242 of the stopper 240 is formed at the outer circumferential surface of the locking shaft 210. The circlip 212 is inserted into the outer circumferential surface of the locking shaft 210 behind the fixing groove 214, and the second spring 250 has a through hole 202 of the operation block 200 behind the stopper 240. The vehicle body tilt braking device of a tricycle, characterized in that the locking shaft 210 penetrates inside and is supported by the circlip 212.