JPH04365657A - Cart braking mechanism - Google Patents

Abstract

PURPOSE:To constitute so that a caddie or a player can ride on a cart and can drive along a leading line automatically so as not to drive on the fairway freely in the boarding status, so as to cope with the recent shortage of the caddie. CONSTITUTION:Such constitution is provided that a brake pedal 9 is arranged and an emergency brake mechanism and a parking brake mechanism are applied when the brake pedal 9 is operated, in order to cope with the state quickly when a danger is generated during an automatic drive along a leading line. A soft brake mechanism is arranged so that a car body can stop slowly in the case of usual brake and an actuator 60 for switching emergency and usual is arranged for switching these mechanisms.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking mechanism for a cart that is capable of automatically steering along guide lines buried underground in a cart passageway.

0002

[Problems to be Solved by the Invention] Conventionally, carts that are driven by batteries have been known. For example, there is a technique described in Japanese Patent Application Laid-Open No. 60-49408. Carts equipped with an engine and driven by the engine are also known.

However, in the case of a battery-powered system, wireless steering using a guide wire is possible, but since the battery capacity is small, it is necessary to charge the battery over a long period of time from a commercial power source after each day's work, which requires a lot of effort. There was a problem in that it required . In addition, in the case of battery carts, it is impossible to obtain large horsepower due to the charging capacity, so it is impossible to drive with a caddy or player along, and the caddy must walk for a long time. Therefore, if a battery cart was used, there was a problem in that it was difficult to find a caddy.

Furthermore, when the cart is driven by an engine, it is possible to increase the horsepower, so caddies and players can ride together. There was a problem with the fairway grass being severely damaged due to the possibility of people running around on it. In addition, in order to prevent the cart from running on the fairway with caddies and players on board, it is necessary for the cart to run unmanned on a cart path away from the fairway. , it is easy to control by remote control, but in the case of an engine-driven cart, it is difficult to make it possible to wirelessly control an engine-driven cart along a guide line because the engine must be stopped when stopping. There it was.

[0005] Furthermore, in order to enable unmanned operation of a cart that can be ridden as is, it is necessary to provide a dual control device and braking mechanism, and great consideration must be given to safety. Therefore, it was a difficult technology. The present invention thus relates to a special braking mechanism for an engine-driven cart that can be wirelessly steered along a guide line, and in which a player can ride a caddy.

[0006]

[Means for Solving the Problems] The problems to be solved by the present invention are as described above, and next, the means for solving the problems will be explained. In other words, a guide line was laid along the cart path, and the cart was able to automatically steer along the guide line.The cart was driven by an engine equipped with the cart, making it possible to drive unmanned or with a passenger. The structure includes three braking mechanisms: an emergency brake mechanism and a soft brake mechanism that are activated by an electric actuator, and a parking brake mechanism that is activated by depressing the brake pedal. In the case of stopping by the radio controller and stopping at a fixed position by the guide line, the soft brake mechanism gradually stops the vehicle, and the parking brake mechanism operates.

[0007] Furthermore, the parking brake mechanism is constructed on the inner diameter portion of the wheel, and the brake drum of the parking brake mechanism and the wheel wheel 32 are integrally constructed. Further, a brake guard 40 protruding from the drive frame 42 is arranged below the brake drum 31 exposed inwardly from the wheel 15 in order to prevent damage to the brake drum 31.

[0008]

[Operation] Next, the operation of the present invention will be explained. Since the cart of the present invention is driven by engine E, it has high horsepower and can be ridden by caddies and players. In addition, conventionally engine-driven carts
Automatic steering along a guide line is impossible because it can be dangerous, but in the present invention, automatic steering is possible while driving the vehicle while the engine is driving the vehicle. In such cases, there is a possibility that a danger may occur while automatically steering the aircraft while riding, and in this case, an emergency braking mechanism is installed to immediately stop the aircraft to avoid danger. It is something. Furthermore, since a parking brake mechanism is essential for riding carts, a parking brake mechanism is also provided separately. Also, since the stop during normal play can be done slowly, a soft brake mechanism is also provided. Further, the parking brake mechanism is constructed inside the wheel wheel 32 of the rear wheel 15 to facilitate assembly and repair. Also, to prevent the parking brake mechanism from coming into contact with obstacles on the ground and being damaged,
A brake guard 40 is arranged below.

[0009]

[Example] Next, an example of the present invention will be described. Although carts can be used for various purposes, in this embodiment, a cart used at a golf course will be described. FIG. 1 is an overall perspective view of the golf cart of the present invention, and FIG. 2 is an overall side view. In a golf course, a cart path is provided outside the fairway, so a guide line is buried under the cart path. Automatic stopping positions for automatically stopping the guide line are determined on the sides of the tee shot position, second shot/third shot position, and green position. Furthermore, although the golf cart of the present invention is driven by an engine, it is capable of radio control, and is equipped with a separately removable radio control device. The radio controller allows the vehicle to be stopped at any location.

The front wheels 14, 14 are steering wheels, and the rear wheels 15, 15 are driving wheels. An engine E and a transmission case M are arranged inside the engine room 6, and the braking mechanism of the present invention is also arranged inside the engine room 6. In particular, the parking brake mechanism is arranged inside the wheel wheel 32 on the inside of the rear wheel 15. An obstacle sensor mechanism 17 is arranged at the front end of the fuselage frame and also serves as a bumper. Below the obstacle sensor mechanism 17, an automatic steering sensor mechanism 16 that detects an underground guide line is arranged to swing left and right. It is arranged so that it can be moved.

Further, a seat 10 is arranged above the engine compartment 6, and at the rear of the seat 10, a bag mounting frame 12 for mounting four sets of golf bags 7 and four putters are inserted. A putter insertion tube 13 is provided in a protruding manner. The bag placement frame 12 includes two support rods 24 that protrude from the seat 10 and two support rods 25 that protrude from the rear of the aircraft.
It is supported by Also, from the aircraft frame upwards,
One rear roof support 19 and two front roof supports 22 at the front are arranged. A front roof 21 is placed on the front part of the front roof support 22, and a ceiling roof 20 is placed on the upper part. The front roof 21 and the ceiling roof 20 are all made of transparent resin plates.

A steering column 5 is installed upright in front of the seat 10, and a steering handle 11 is connected from the steering column 5.
is protruding diagonally. Also, between the steering handle 11 and the front roof 21, there is a storage compartment 23 for small items.
is located. Further, near the base of the steering handle 11, a manual/automatic switching lever 4 is arranged. An accelerator pedal 8 and a brake pedal 9 are arranged below the manual/automatic switching lever 4. Also seat 10
The forward/reverse switching lever 7 is located below the engine compartment 6.
0 is placed.

Next, FIG. 3 will be explained. FIG. 3 is a plan view of the body frame of the golf cart with the engine compartment 6 and steering column 5 removed. An obstacle sensor mechanism 17 is disposed at the front end of the aircraft body, and an automatic steering sensor mechanism 16 is disposed below the obstacle sensor mechanism 17 as described above. Also, between the front wheels 14,
Left and right knuckle arms 38 and 37 are arranged, and are steered by a steering handle 11 and a steering motor Mo. A steering power unit 36 is arranged in front of the steering motor Mo. Furthermore, an accelerator pedal 8 and a brake pedal 9 are arranged at the rear of the steering motor Mo.

Further, a remote control receiver 27, a main controller 28, and a steering controller 35 are arranged on the lower surface of the step portion where the operator places his/her feet. An engine E is arranged in the center inside the engine room 6, a fuel tank 33 is arranged on the fuselage frame F on the left side of the engine E, and a fuel pump is connected from the fuel tank 33 to the engine E. Oil is supplied by 68. Further, a muffler 52 is arranged on the right side of the engine E, and the upper part is covered with a muffler cover 51.

Furthermore, a battery B is placed on the right side of the muffler cover 51. The battery B is connected to the engine E.
This is to transmit power to the starting motor 97 of. Further, the battery B is charged by a generator 55 arranged above the engine E. Further, the engine E is supported by a drive frame 42 so as to be able to pitch and roll to a certain extent, and a transmission case M is also placed on the drive frame 42. Axles 1.1 protrude left and right from the transmission case M, and a rear wheel 15 is disposed at the outer end of the axle 1.1.

FIG. 4 is a plan view of the engine E and the vicinity of the transmission case M, FIG. 5 is a left side view, FIG. 6 is a right side view, and FIG. 7 is a rear view. As shown in FIG. 5, the fuselage frame F is bent upward from a position to the side of the engine E, and extends linearly rearward from the bent position. An engine compartment frame 50 on which the engine compartment 6 is placed projects upward from a position just before the fuselage frame F bends. The engine room frame 50 and the fuselage frame F
are integrally constructed. Shock absorbers 44, 44 are interposed between the rear end of the engine compartment frame 50 and the axles 1, 1.

Further, the front ends of drive frames 42 are pivotally supported on a part of the body frame F at a pivot portion 43. The drive frame 42 can pitch up and down around the pivot 43, and since the pivot 43 is supported by an elastic cylinder, the drive frame 42 can be rotated left and right to some extent. It allows rolling. However, in order to prevent the drive frame 42 from excessively rolling left and right, a lateral link 45 is interposed between the drive frame 42 and the fuselage frame F, as shown in FIG.

The engine E is supported on the drive frame 42 in a vibration-proof manner by four vibration-proof devices 41, 41, 41, 41. Further, a brake guard 40 protrudes from the rear end of the drive frame 42 to the left and right to protect the parking brake mechanism disposed inside the wheel wheel 32 of the rear wheel 15 from coming into contact with obstacles on the ground. ing. Also, the mission case M located at the rear of engine E
An operating wire 69 from the forward/reverse switching lever 70 extends therein, and an automatic braking wire 49 for pressing the brake disc extends to the disc brake mechanism 46. Furthermore, an air cleaner 76 and an accelerator actuator 39 are arranged above the engine E as shown in FIG. The starting motor 97 is arranged between the air cleaner 76 and the drive frame 42.

An automatic transmission drive pulley 48 is disposed on the crankshaft of the engine E, and an automatic transmission input pulley 47 is interposed on the input shaft of the transmission case M. A biasing spring 55 is interposed in the automatic speed change input pulley 47 . Further, a mechanism for operating an automatic braking wire 49 for the emergency brake mechanism and soft brake mechanism is configured in the upper part of the transmission case M. Further, a travel speed detection gear 53 is fixed between the automatic transmission input pulley 47 and the transmission case M, and is fixed to the automatic transmission input pulley 47.
A running speed detection sensor 54 detects the rotation of the teeth of the
is provided.

FIG. 8 is a plan view of the parking brake mechanism and soft brake mechanism switching mechanism of the present invention, FIG. 9 is a side view, FIG. 10 is an enlarged plan view of the brake actuator 3, and FIG. 11 is the same diagram of the brake actuator 3. FIG. 12 is an enlarged side view of the portion shown in FIG. 12, and FIG. 12 is an enlarged sectional view of the parking brake mechanism. Engine compartment frame 5 extended to the top of the mission case M
0, the base of the brake actuator 3 is attached to the pivot shaft 71.
It is supported by the . The brake actuator 3 is driven by a drive motor 72 and extends and contracts. The front end of the brake actuator 3 is pivotally supported at the tip of a soft brake arm 62. The soft brake arm 62 is pivotally supported on a pivot shaft 63 fixed to a bracket 73 fixed to the engine compartment frame 50, and the emergency brake arm 57 is similarly pivoted on the pivot shaft 63.

Further, an emergency brake spring 56 is arranged above the brake actuator 3 and substantially parallel to the brake actuator 3, and the emergency brake spring 56 is connected to the engine compartment frame 50 and the emergency brake arm 57.
It is interposed between. and soft braking arm 62
An emergency switching body 58 is pivotally supported on the pivot shaft 61, and the emergency switching body 58 is operated from an emergency switching actuator 60 via an operating wire 59. Reference numeral 60 is composed of a solenoid or the like, and when it is necessary to brake in an emergency, when the operating wire 59 is instantly pulled and the emergency service switching body 58 is rotated around the pivot shaft 61, the emergency service switching body 58 is turned off. A locking portion 58a at the tip of the brake arm 58 releases the locking state between the emergency brake arm 57 and the soft brake arm 62.

As a result, the emergency braking arm 57 is instantly pulled by the emergency braking spring 56, and the pivot shaft 63
The brake disc 2 fixed to the brake shaft 74 is clamped and braked by pulling the disc brake wire 62 that is locked to the emergency brake arm 57 on the opposite side of the brake arm 57 to operate the disc brake mechanism 46. When there is no urgent need, that is, when stopping at the teeing ground, second shot position, third shot position, or near the green using a guide line, or when stopping using a radio control device, the braking actuator 3 may be extended or retracted. This causes the vehicle to brake more slowly.

In this case, the urging force of the emergency braking spring 56 is suppressed, and the soft braking arm 62 and the emergency braking arm 57 rotate together due to the reduction speed of the braking actuator 3, and the soft braking arm 62 is slowly pulled. This is what we do. Sensors 65 and 66 that detect the position of the emergency braking arm 57 and a sensor 64 that detects the position of the soft braking arm 62 are arranged on the bracket 73, and send a signal to the main controller 28 to confirm the braking state. are doing. The emergency switching body 58 is configured so that when the emergency braking is activated, the engine E is stopped, and the aircraft is stopped, the soft braking arm 62 returns to the inner side of the emergency braking arm 57 that is attracted by the emergency braking spring 56. At this position, the emergency/commercial switching actuator 60 returns the arms to their original positions so that the two arms engage again.

The disc brake mechanism 46 is fixed to the side surface of the mission case M, and is configured to clamp the brake disc 2 at the tip of the brake shaft 74 protruding from the mission case M. On the other hand, the parking brake mechanism is configured inside the wheel wheel 32 of the rear wheel 15 fixed to the tip of the axle 1. And Figure 12
As shown in , a brake friction plate 34 is attached inside the brake drum 31, and a brake shoe is arranged inside the brake friction plate 34. In the present invention,
The wheel wheel 32 and the brake friction plate 34 are fastened together by a bolt 7.
5, and when maintaining the parking brake mechanism, simply remove the rear wheel 15 from the axles 1 and 1, and the brake drum 31 is also removed from the axle 1 at the same time.
・It is configured so that it deviates from 1.

A brake guard 40 protruding from the drive frame 42 is disposed below the brake drum 31 of the parking brake mechanism, and the brake guard 40 is located at the tip of the drive frame 42 as well as the axles 1. The brake guard 4 moves up and down centering on the pivot portion 43 of the brake guard 4.
0 prevents the parking brake mechanism from coming into contact with obstacles protruding from the ground.

[0026]

Effects of the Invention Since the present invention is provided with an emergency brake mechanism, a soft brake mechanism, and a parking brake mechanism as claimed in claim 1, the following effects can be achieved. First, when an obstacle occurs on the cart path or the cart deviates from the cart path while automatically driving along the guide line with a player or caddy on board, it is necessary to make an emergency stop. When the brake pedal 9 is depressed, both the parking brake mechanism and the emergency brake mechanism are activated, allowing the cart to be stopped reliably and quickly. Second, during normal play, when you operate the sled using the radio controller or when stopping at a fixed point, the soft brake mechanism will stop slowly at the speed of the braking actuator 3. This prevents the cart from suddenly stopping, damaging the club, or creating a dangerous stopping condition for the caddy and players. Furthermore, when the aircraft is stopped by the radio controller or by the brake pedal 9, the brake disc 2 is always braked by the brake actuator 3 or the emergency brake spring 56, so there is no need to operate the parking brake mechanism. The parking brake was applied to the aircraft, and the cart no longer moved automatically on the slope.

Further, as in claim 2, the parking brake mechanism is constructed on the inner diameter part of the wheel, and the brake drum 31 and the wheel wheel 32 of the parking brake mechanism are integrally constructed, so that the rear wheel 15 is By removing the brake drum 31 from the axle 1, the brake drum 31 can also be removed from the axle 1 at the same time, making assembly and repair easier.

Further, as in claim 3, the brake guard 40 protruding from the drive frame 42 is disposed below the brake drum 31 exposed inwardly from the wheel 15 in order to prevent damage to the brake drum 31. 4
Since the part 2 performs pitching and rolling around the pivot 43, it is possible to avoid the problem of the parking brake mechanism being destroyed due to contact with an obstacle from the ground. .

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a cart of the present invention.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the body frame of the cart with the engine compartment 6 and steering column 5 removed.

FIG. 4 is a plan view of the vicinity of the engine E and the mission case M.

FIG. 5 is a left side view as well.

FIG. 6 is a right side view as well.

FIG. 7 is a rear view as well.

FIG. 8 is a plan view of a switching mechanism between a parking brake mechanism and a soft brake mechanism according to the present invention.

FIG. 9 is a side view as well.

FIG. 10 is an enlarged plan view of a portion of the brake actuator 3. FIG.

FIG. 11 is an enlarged side view of the brake actuator 3. FIG.

FIG. 12 is an enlarged sectional view of the parking brake mechanism.

[Explanation of symbols]

1 Axle 2 Brake disc 3 Brake actuator 4 Manual automatic switching lever 5 Steering column 15 Rear wheel 31 Brake drum 32 Wheel wheel 40 Brake guard 42 Drive frame 56 Emergency braking spring 57 Emergency braking arm 58 Emergency regular switching body 60 Emergency regular switching actuator 62 Soft braking arm

Claims (3)

[Claims] [Claim 1] A cart that has a guide line laid along a cart path and is capable of automatically steering along the guide line.The cart is driven by an engine equipped with the cart, and is capable of unmanned running and riding. This configuration is equipped with three braking mechanisms: an emergency brake mechanism and a soft brake mechanism that are activated by an electric actuator, and a parking brake mechanism that is activated by pressing the brake pedal. and a parking brake mechanism acts, and in the case of stopping by a radio controller and stopping at a fixed position by a guide line, the cart is configured so that the soft brake mechanism gradually stops and the parking brake mechanism acts. braking mechanism. 2. In the cart braking mechanism according to claim 1, the parking brake mechanism is constructed on the inner diameter part of the wheel, and the brake drum of the parking brake mechanism and the wheel wheel 32 are integrally constructed. A cart braking mechanism featuring: 3. In the cart braking mechanism according to claim 2, the brake drum 31 is exposed inside from the wheel 15.
A braking mechanism for a cart, characterized in that a brake guard 40 protruding from a drive frame 42 is disposed below the brake drum 31 to prevent damage to the brake drum 31.