JPH079962A - Combined unmanned and manned traveling vehicle - Google Patents

Abstract

PURPOSE:To provide a combined unmanned and manned traveling vehicle capable of being simplfied by reducing the number of parts of a braking structure. CONSTITUTION:A combined unmanned and manned traveling vehicle which is constituted to change over the mode between the unmanned traveling and manned traveling conditions, while being provided with a first braking device 15 operated through a mechanical linking mechanism M by a manual operating force, a second braking device 14 operated on the basis of an electric operating signal and a parking brake means for setting the second braking device 14 to a brake operating condition when the traveling condition is changed over to the parking stop condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unmanned traveling manned traveling / combined vehicle which is configured to be capable of mode switching between an unmanned traveling state such as a radio-controlled model and a manned traveling state where a driver is aboard.

[0002]

2. Description of the Related Art Conventionally, in such a type of unmanned and manned traveling vehicle, as a braking device for stopping traveling, braking is performed by transmitting a mechanical operating force by a manual operation when traveling by a man. A braking device for manned traveling and a braking device for unmanned traveling that brakes based on an electric operation signal when traveling unmanned are provided, and a parking brake device is separately provided.

[0003]

Therefore, in the conventional structure, since the parking brake device is separately provided, the installation of the parking brake device complicates the structure and increases the number of parts, which is costly. It was very expensive. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an unmanned traveling manned traveling / combined vehicle capable of reducing the number of parts and simplifying the braking structure.

[0004]

In order to achieve the above object, an unmanned traveling manned traveling combined vehicle according to the present invention is configured to be capable of mode switching between an unmanned traveling state and a manned traveling state. It is equipped with a first braking device that is operated by a manual operation force via a mechanical linkage mechanism, and a second braking device that is operated based on an electrical operation signal, and switches from a drivable state to a parking stopped state. And a parking brake means for bringing the second braking device into a braking operation state. Operation by this characteristic configuration
The effects are as follows.

[0005]

That is, since the second braking device operated based on the electric operation signal is used as the parking brake by setting the second braking device in the braking operation state, it is not necessary to provide a dedicated parking brake device.

[0006]

Therefore, since the second braking device can be used as a parking brake, the structure is simpler because the dedicated parking brake is not provided as compared with the conventional structure in which the parking brake is provided exclusively. Moreover, the number of parts can be reduced, and the cost can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows a golf cart as an example of an unmanned and manned traveling vehicle according to the present invention. This golf cart supports a vehicle body frame 3 with a pair of left and right front wheels 1 and 1 and a pair of left and right rear wheels 2 and 2, on which a boarding operation unit 4, a shade cabin 5, a luggage rack 6 and A vehicle body V is configured by equipping the driving unit 7. And
This golf cart has a structure in which the usage pattern can be changed between an unmanned traveling mode in which a radio-controlled vehicle can be operated and a manned traveling mode in which an operator can board and operate the boarding operation unit 4.

As shown in FIGS. 2 and 3, in the awning cabin 5, the awning roof portion 5A is provided at the front support portion 5B.
Is connected to and supported by the vehicle body V. Then, in case of rain, the plate-like rain shield 9 for covering the upper portion of the luggage rack 6 carrying the club bag 8 is stored in the sunshade roof portion 5A and the sunshade roof portion 5A.
It is configured to be switchable from the rear end to the state of projecting rearward. That is, a pair of left and right long holes 10, 10 are formed in the rain shield 9 so as to extend in the front-rear direction, and the rain shield is fixed to the left and right sides of the lower surface of the sunshade roof portion 5A so as to be rotatable. Knob 11,
11 are respectively inserted into the long holes 10 and 10, and the rain shield 9 is held on the sunshade roof portion 5A by the rain shield fixing knobs 11 and 11. Then, as shown in FIG. 2, the knobs 11 and 11 have the long holes 10 and 10 respectively.
The shafts 11a, 11a inserted into the shaft 11a are formed to have an elliptical cross section, and a long hole 10 is formed in a width substantially the same as the short diameter of the shaft 11a.
A wide portion 12 having a width substantially the same as the major axis of the shaft portion 11a is formed. As a result, when the rain shield 9 is projected rearward or is stored in the sunshade roof portion 5A, the rain shield 9 is rotated with the major axis of the shaft portion 11a facing forward and backward. Slide. Further, when the rain shield 9 is fixed, the predetermined wide portion 12 of the elongated hole 10 is fixed to the knobs 11 and 1.
By disposing the shaft portion 11a of the knob 11 in the left-right direction with the wide portion 12 of the rain shield 9 so that the rain shield 9 is located at the installation position of 1, the forward and backward displacement of the rain shield 9 is restricted. Become. The wide portion 12 of the long hole 10 has left and right long holes 10, so that the rain shield 9 can be at least fixed in a state where the rain shield 9 is stored in the sunshade roof portion 5A and a posture in which the rain shield 9 covers the upper portion of the luggage rack 6. The elongated holes 10 are formed near the front end and near the rear end in a state of being formed in pairs.

Next, the braking structure of the golf cart will be described. As shown in FIG. 1, a disc brake 14 as a second braking device is arranged on a transmission intermediate shaft of a transmission 13 provided in a traveling transmission system, and wheels 15b of rear wheels 2 and 2 are provided. A wheel brake 15 as a first braking device is provided. To brake the disc brake 14, a shift operation hydraulic cylinder 16 for shifting the brake shoe 14a so as to press the disc 14b is provided, and an electromagnetic cylinder electromagnetically driven to operate the shift operation hydraulic cylinder 16 is provided. 17 are provided. The electromagnetic cylinder 17 is PWM-controlled by a pulse width modulation signal from a control device 18 mounted on the vehicle body V. Further, the disc brake 14 is configured as a negative brake, that is, the brake is normally operated by elastic biasing by a spring or the like, whereas the control device 18 is used.
The brake is deactivated by a signal from the. The control device 18 is configured to operate in the unmanned control mode of the radio control. Further, in order to brake the wheel brake 15, a master hydraulic cylinder 19 that operates so as to press the brake shoe 15a against the wheel 15b and a brake pedal 20 provided in the boarding operation unit 4 are linked. . Here, the brake pedal 20, the master hydraulic cylinder 19, the oil passage between the master hydraulic cylinder 19 and the brake shoe 15a, and the like constitute a mechanical linkage mechanism M. Further, the boarding operation unit 4 is provided with a changeover switch 21 capable of switching between a parking state and a normal use state. The signal from the changeover switch 21 is input to the control device 18. The control device 18 receives the braking signal from the travel command signals (radio control signal) during unmanned traveling when the changeover switch 21 is switched to the normal operating state and is switched to the unmanned traveling mode. In this case, a PWM signal for braking the electromagnetic cylinder 17 is output, and the braking is released to the electromagnetic cylinder 17 when the changeover switch 21 is switched to the normal operating state and is switched to the manned traveling mode. A signal is output, and when the changeover switch 21 is switched to the parking state, a signal for constantly braking the electromagnetic cylinder 17 is output. Here, the control device 18, the changeover switch 21, the electromagnetic cylinder 17, the hydraulic cylinder 16 for shift operation, the disc brake 14 and the like constitute a parking brake means.

With the above structure, the braking device used during unmanned traveling is used as the parking brake, so that the structure is simpler than that of the one in which a dedicated parking brake is separately provided.

Although the mechanical linkage mechanism M is constructed by using a hydraulic device, it may be constructed by using a link, a rod or the like.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing a brake operation system.

FIG. 2 is a cross-sectional plan view showing a rain shield structure.

FIG. 3 is an overall side view showing a golf cart.

[Explanation of symbols]

 14 Second Braking Device 15 First Braking Device M Mechanical Linkage Mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Goto 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (1)

[Claims] 1. A first braking device (15) which is configured to be capable of mode switching between an unmanned traveling state and a manned traveling state, and which is operated by a manipulating force through a mechanical linkage mechanism (M). ) And a second braking device (14) operated on the basis of an electric operation signal, and when the travelable state is switched to the parking stopped state, the second braking device (1)
4) An unmanned traveling manned traveling / combined vehicle equipped with a parking brake means for bringing 4) into a braking operation state.