JP2535244Y2 - Tractor pedal system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention relates to a brake and accelerator pedal device for general industrial vehicles such as for agriculture and construction.

(B) Conventional technology A tractor pedal device in which a pair of left and right brake pedals that can be operated simultaneously and separately can be arranged close to each other, and each of the pedal surfaces is arranged to be inclined backward in a plan view, has already been realized. No. 9650 and Japanese Utility Model Publication No. 46-24407.

Further, a vehicle in which an access pedal is provided near a driver's seat outside a pair of left and right brake pedals is also known from Japanese Utility Model Laid-Open No. 57-59743.

(C) Problems to be Solved by the Invention As described above, only the pair of left and right brake pedals are arranged in close proximity to each other, and each of the pedal surfaces is disposed to be inclined backward in plan view. Depending on the position of the accelerator pedal for running the tractor, the two-step operation is often such that the heel is once released from the step, the knee is bent, and the accelerator pedal is depressed again.

Therefore, if the accelerator pedal is further provided outside and the step width is widened, the accelerator pedal often has a fulcrum axis below the step and rises upward, so that it interferes with the step plate, so that a hole is made in the step plate, Not only is it partially cut off or the structure becomes complicated, but when stepping on the tip of the toe, only the upper surface of the step can be depressed, and the stroke is often insufficient.

Further, as described above, by increasing the step width for the accelerator pedal, the right front wheel becomes difficult to see from the cockpit, and steering becomes difficult.

(D) Means for solving the problem The present invention is directed to a four-wheel passenger tractor that brakes the left and right rear wheels simultaneously or independently. In order to arrange the brake pedal and the accelerator pedal in this order, a seat 11 on which a driver sits is arranged behind each of the pedals 5, 6, and 7, and a plan view of the pedal surface 5a of the left brake pedal 5 is provided. The end 11b on the seat 11 side is inclined so as to retreat outwardly, and the end 6 of the pedal surface 6a, 7a of the right brake pedal 6 and the accelerator pedal 7 on the seat 11 side on the extension line x following this.
The above-mentioned problem has been solved by arranging the steps 19b and 7b along the width of the step 19 below the accelerator pedal 7 so that the width of the step 19 is narrower at the front and wider at the rear.

(E) Function In the four-wheeled riding tractor, while running the tractor, lightly inhale the accelerator pedal, which is provided on the upper surface of the right step, from the center of the fuselage to the right side with the heel of the right foot on the step The vehicle is controlled so as to reach a predetermined speed.

When stopping the running tractor, the clutch pedal arranged on the left side of the center of the aircraft was strongly depressed with the left foot to cut off the transmission of power, and the right foot was separated from the accelerator pedal and placed close to the right side of the center of the aircraft. By simultaneously depressing the pair of left and right brake pedals with the right foot and simultaneously braking the left and right rear wheels, the inertia of the tractor is stopped and stopped.

Also, when turning sharply to the left while driving, turn the steering wheel to the left to steer the front wheel to the left, and release the right foot from the accelerator pedal and press the left brake pedal strongly to brake only the left rear wheel. And the tractor can turn left with a small turning radius because the right rear wheel remains driven.

When turning sharply to the right, the tractor can turn left with a small turning radius by turning the steering handle to the right and depressing the right brake pedal with the right foot according to the above.

(F) Embodiment One embodiment of the present invention will be described with reference to the drawings. A tractor 1 travels by transmitting the output of an engine 2 to a right and left rear wheels 4, 4 'via a transmission 3.

A seat 11 is fixed on an upper portion of the transmission 3 and a driver sits on the seat 11 and operates a steering handle 12 to steer a front wheel 13 interlockingly connected thereto.

A horizontal frame 16 whose both sides are bent obliquely upward is welded on the left and right main frames 15, and a step 19 is screwed on the upper surface of the side frames 17, 17 fixed to both ends and a bracket 18 erected in the middle. The boss of the right brake pedal 6 is loosely fitted and fixed to the right end of the pedal shaft 20 supported upward, and the boss of the left brake pedal 5 is fixed inside the boss, and the boss of the clutch pedal 10 is fixed to the left end. The boss of the accelerator pedal 7 is pivotally supported on a support shaft of a bracket 21 hanging down from the right side frame 17, and the left brake pedal 5 is seen in a plan view as shown in FIG. Seat 11 of pedal surface 5a
The side end portion 5b is inclined so as to be retracted outward, and the end portions 6b, 7b of the pedal surfaces 6a, 7a of the right brake pedal 6 and the access pedal 7 on the seat 11 side are arranged on the extension line x. It is arranged along the line.

The right edge 8 and the left edge 9 of the step 19 are inclined so that the front is closer to the center in plan view. That is, the width of the step 19 below the accelerator pedal 7 is configured such that the front portion is narrow and the rear portion is wide, so that interference of the rising portion of the accelerator pedal 7 is avoided, and when the accelerator pedal 7 is operated,
A sufficient stroke can be obtained.

While the tractor 1 is traveling, the driver controls the vehicle such that the accelerator pedal 7 is lightly depressed with the tip of the foot while keeping the heel of the right foot on the right upper surface of the step 19, and travels at a predetermined speed.

When stopping the running tractor 1, the transmission of the power is cut off by strongly depressing the upper left clutch pedal 10 with the left foot, and the right brake pedal is separated from the accelerator pedal 7 by the left brake pedal 5 which is arranged closely adjacent to the inside. By simultaneously depressing the right brake pedal 6 with the right foot and simultaneously braking the right and left rear wheels 4, 4 ', the inertia of the tractor 1 is stopped and stopped.

When the vehicle turns sharply to the left while driving, the steering wheel 12 is turned to the left to steer the front wheel 13 to the left, and the right foot is released from the accelerator pedal 7 and the left brake pedal 5 is strongly pressed. Only the wheel 4 'is braked and stopped, and the right rear wheel 4 remains driven, so that the tractor 1 can turn left with a small turning radius.

When the tractor 1 turns sharply to the right, the tractor 1 can turn left with a small turning radius by turning the steering handle 12 clockwise and depressing the right brake pedal 6 with the right foot according to the above.

Furthermore, when one of the front wheels 13 is viewed while sitting on the seat 11, the corners on both sides of the front end in step 19 do not obstruct the line of sight, and the driving operation can be easily performed.

(G) Effects of the present invention The present invention is directed to a four-wheel passenger tractor that simultaneously or independently brakes the left and right rear wheels 4, 4 ', from the center of the vehicle outward to the upper right side of step 19, and to the left brake pedal 5, The right brake pedal 6 and the accelerator pedal 7 are arranged in close proximity to each other in this order, and a seat 11 on which a driver sits is disposed behind the angular pedals 5, 6, and 7. A pedal surface 5a of the left brake pedal 5 is provided.
Of the right brake pedal 6 and the access pedal 7 on the seat 11 side of the seat 11 on the seat 11 side. 7b and the accelerator pedal 7
Since the width of the lower step 19 is configured to be narrower in the front and wider in the rear, the driver steps on the accelerator pedal 7 with the heel of the foot on the step 19 in the direction of the accelerator pedal 7 to be operated. The user can easily operate the accelerator pedal.

Further, even if the accelerator pedal 7 has a structure in which the pedal surface 7a is arranged from below the step 19 through its outer end and above the step 19, interference with the outer end of the step 19 can be easily avoided. it can.

Further, the outer end of the step 19 behind the pedal surface 7a of the outermost accelerator pedal 7 of the adjacently arranged pedals 5, 6, 7 projects outward to the right toward the rear so as to approach the pedal surface 7a. Therefore, a large space for placing the heel of the foot for operating the accelerator pedal 7 can be secured on the step, and a sufficient stroke can be obtained.

Since the front side of step 19 has a narrow width, when the driver sits on the seat and looks at the right front wheel, the driving step can be easily performed without the right step corner blocking the line of sight.

[Brief description of the drawings]

1 is a plan view of a tractor, FIG. 2 is a top view of the tractor, and FIG. 3 is a rear view of a main part of the tractor. 1 is a tractor, 2 is an engine, 3 is a transmission, 4 is a rear wheel, 5 is a left brake pedal, 6 is a right brake pedal, 7 is an accelerator pedal, and 5a is a left brake pedal 5
6a is the pedal surface of the right brake pedal 6, 7a is the pedal surface of the accelerator pedal 7, 5b, 6b, and 7b are the seat side ends of each pedal surface, 10 is the clutch pedal, 11 is the seat, and 12 is the Steering handle, 13 for front wheels, 19 for steps

Claims (1)

(57) [Scope of request for utility model registration] 1. A four-wheeled riding tractor for simultaneously or independently braking the left and right rear wheels 4, 4 ', from the center of the fuselage to the upper right side of step 19, to the left brake pedal 5, the right brake pedal 6, A seat 11 on which a driver sits is arranged behind these pedals 5, 6, and 7 so as to be juxtaposed and arranged in the order of the accelerator pedal 7, and the seat 11 on the pedal surface 5a of the left brake pedal 5 in plan view. The side end portion 5b is tilted so as to retreat outwardly, and the seat 1 of each of the pedal surfaces 6a, 7a of the right brake pedal 6 and the accelerator pedal 7 is positioned on the extension line x following this.
A pedal device for a tractor, characterized in that the end portions 6b, 7b on one side are arranged along the width of the step 19 below the accelerator pedal 7 and the width of the step 19 is narrower at the front and wider at the rear.