JPS61263873A - Floor structure in farm tractor - Google Patents

Abstract

PURPOSE:To prevent the body of the driver from making in contact with levers or the like, and to make it possible to attach arm rest sections, by forming projected sections at the left and right of the inside of fender section in a floor member in which a floor and the fender are integrally incorporated with each other. CONSTITUTION:The left and right ends of a floor member 7 are formed to be highest, and are formed in left and right fenders 7a, 7b as viewed in the advancing direction of a farm tractor. In this arrangement projected sections 7L, 7R are formed in the insides of the left and right fenders 7a, 7b, respectively. The projected section 7L is formed of a lever guide 7e and an arm rest section 7h, the lever guide 7e being formed therein with guide grooves for a counter speed change gear lever 3 and a PTO speed change lever 4. Further, the projection 7R is also formed of a lever guide section 7g and an arm rest section 7f, and the lever guide 7g being formed therein with guide grooves in which a position control lever 14 and a depth control device 15 are rotated.

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the structure of a floor member that integrally covers the left and right sides of a tractor seat to the footwells and serves as a fender, a dust cover, and a floor. It is.

(b) Prior Art Techniques for configuring a floor member integrally with a fender have been known for some time. For example, Utsukai 58-
This is as in Publication No. 132783. The present invention further improves these prior art techniques by providing a floor member with an operator's armrest and a mounting surface for operating tools and the like.

(C) Problems to be Solved by the Invention The purpose of the present invention is to simplify the arrangement of levers around the seat of a tractor so that when the operator turns around to check the status of the work equipment, This prevents the levers from touching some parts and causing malfunctions, and allows the operator to stably support his elbows and put his weight on the vehicle even when driving in a half-positioned position, looking half-way in front and half in the rear. The armrest is intended to be constructed as a floor member.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the structure for achieving the objectives will be explained.

A floor component that integrates the floor and fender.
Projections are formed on the left and right sides of the inside of the fender.

Further, a part of the protrusion is formed flat to form an armrest of the seat.

Further, the front part of the protrusion is used as a lever guide part, and the rear part is used as a mounting surface for an operating tool such as a control switch.

(e) Embodiments and Functions The objects and structure of the present invention are as described above. Next, the structure of the embodiments shown in the attached drawings and the invention will be explained in detail.

FIG. 1 is a left side sectional view of the vicinity of the seat of a tractor according to the present invention, FIG. 2 is a right side sectional view, and FIG. 3 is a front sectional view.

Let me explain from the overall structure. A rear axle housing lO is fixed to the rear of the mission case 13.

Power is transmitted from the engine in the hood to the input shaft 18 of the mission case 13 via a universal gear shaft. An axle projects from the rear axle housing 10 to the left and right and drives the rear wheels. A hydraulic case 11 is mounted and fixed on the upper surface of the rear axle housing 10. A top link hinge 16 is fixed to the rear surface of the hydraulic case 11.

A lift arm 12 protrudes from the hydraulic case 11 so as to be movable up and down, and allows a working machine such as a rotary tiller to be rotated up and down via a lift link. A depth control lever 15 and a position control lever 14 are protruded from the right side of the hydraulic case 11 for sliding the spool of the hydraulic control valve in the hydraulic case 11, and these two levers are connected to the floor member. It passes through the lever guide portion 7g of No. 7 and protrudes to the right side of the seat 1.

A main shift lever 6 and a differential lock lever 5 are protruded from the right side of the transmission case 13 and the rear axle housing 10, and an auxiliary shift lever 3 and a PTO shift lever 4 are protruded from the left side.

The present invention provides a fender that covers transmission-related parts such as the transmission case 13, rear axle housing 10, and hydraulic case 11 from above, forms the floor around the operator, and further covers the upper surfaces of the left and right rear wheels. This relates to the structure of the floor member 7 that integrally constitutes the floor member 7.

The floor member 7 is a part molded from FRP resin, etc., and is made of a material that is light in weight (and has both elasticity and toughness). Reference numeral 17 denotes a hydraulic stop protruding forward from the hydraulic case 11. It's a lever.

Next, the specific structure of the floor member 7 will be explained with reference to FIG. 3.

The left and right ends of the floor member 7 are configured to be the highest, and in the direction of travel, the left fender 7a and the right fender
7b.

Then, a protrusion 7L is placed inside the left fender 7a.
A protrusion 7R is formed inside the fender 7b. The protruding portion 7L is composed of a lever guide portion 7e and an armrest portion 7h, and guide grooves for the sub-shift lever 3 and the PTO shift lever 4 are bored in the lever guide portion 7e. Since nothing of the armrest protrudes above the portion 7h, the operator can use it as an armrest when operating the machine while looking at the working machine at the rear.

The protrusion 7R formed on the inside of the right fender 7b also
The lever guide portion 7g and the armrest portion 7f constitute the lever guide portion 7g. The lever guide portion 7g is provided with a guide groove in which the position control lever 14 and the depth control lever 15 rotate. Further, the guide plate 30 of the main shift lever 6 is provided to protrude separately. A control box 8 is fixed to the back surface of the armrest portion 7f, and a control switch 9 is protruded from the upper surface of the armrest portion 7f. However, the inner half of the armrest section 7f has a space for the armrest, so that when the operator turns around from the right, he or she can rest on his or her elbow to stabilize his or her posture. .

The control switch 9 of the control box 8 is a control switch for the tilt angle control device of the working machine mounted on the tractor, and the electric control switch for the depth control and the manual control levers for these automatic control devices are also installed in the control box. It is fixed at 8.

The floor member 7 extends below the seat 1 to prevent mud and dust from rising from below. The floor member 7 is interposed between the hydraulic case 11 and the seat 1, and in the part where the upper part of the hydraulic case 11 protrudes, the floor member 7 also protrudes upward, and there are two left and right parts on the left and right sides of the protruding part. A slide rail 21 for sliding the seat 1 back and forth is fitted and fixed thereinto have concave grooves 7d and 7d. A slide guide 22 of the seat 1 is slidably fitted onto the slide rail 21. The sliding movement of the seat 1 is normally locked by the stop lever 2, but when the operator needs to adjust the position of the seat 1, the operator releases the stop lever 2 to move the seat 1 back and forth. It is. A pivot shaft 19 is provided at the front end between the slide guide 22 and the seat 1.
is pivotally supported, and the seat 1 is rotatable forward about the pivot shaft 19. Further, a cushion rubber 20 is interposed between the seat 1 and the slide guide 22 to improve the riding comfort of the seat 1.

The floor member 7 joins the left and right protrusions 7L and 7R at the front of the seat 1 to form a vertical surface 7j. The vertical surface 7j stops at the upper surface of the transmission case 13, and then forms a flat surface, serving as a floor portion 7C on which the operator places his feet during operation.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, the lever guide part and armrest part provided on the protruding part are
Since the lever guide part is in the front and the armrest part is placed apart from the rear and upward, even if the operator places his elbow on the armrest part, there is no interference between the levers and the elbow.

Second, the armrests are placed on the protruding part of the floor member, so when the operator is working in a half-body position while looking at the work equipment behind him, he can rest on his elbows to stabilize his posture. This allows operators to continue working safely with less fatigue.

Third, tractors may continue to work on uncultivated and cultivated land, tilting left and right.

In addition, when working on sloping pastures, the tractor continues to work on an incline. Even in such cases, the operator rests his elbows on the armrests and continues working in a stable condition. It is possible.

Fourth, by arranging the electrical control box at the rear of the protrusion of the floor member and near the armrest, the control box, which is sensitive to moisture and dust, can be protected from moisture and dust. The control box can also be protected by the fenders placed high on the left and right sides.

[Brief explanation of drawings]

FIG. 1 is a left side sectional view of the vicinity of the seat of a tractor according to the present invention, FIG. 2 is a right side sectional view, and FIG. 3 is a front sectional view. 1...Seat 7...Floor members 7a, 7b...Fender 7L, 7R...Protrusion parts 7e, 7g...Lever guide parts 7h, 7f...Armrest part 8... control box

Claims (3)

[Claims] (1) A floor structure for an agricultural tractor, characterized in that a floor member that integrally constitutes a floor and a fender has protrusions formed on the left and right sides of the inside of the fender part. (2) A floor structure for an agricultural tractor, characterized in that a portion of the protruding portion according to claim 1 is formed flat to serve as an armrest portion of a seat. (3) A floor structure for an agricultural tractor, characterized in that the front part of the protruding part according to claim 1 is used as a lever guide part, and the rear part is used as a mounting surface for an operating tool such as a control switch.