JPH0958525A - Floor step support device of tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make vibration hard to be transmitted to a floor step by supporting a front part of the floor step having a step guard standing up on the front side with a step bracket projecting to the lateral side from a connecting plate between an engine body and a clutch housing by interposing elastic bodies. SOLUTION: A floor board of a tractor is arranged so as to cover a clutch housing 2 and the upper side of a front transmission case, and a floor step 6 is arranged in its left and right both side parts. The floor step 6 is supported with a step bracket 4 whose front part is projected to the side from a connecting plate 3, and an inside end front edge part of the step 6 is brought near to the inside end side of the bracket 4, and collars 31 are fitted by interposing elastic bodies 7 between both. A side end part of the floor step 6 is connected to a step guard 5 by interposing the elastic bodies 7, the collars 31 or the like. Therefore, transmission of vibration to the floor step 6 is reduced by a vibration control action of the elastic bodies 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor step support device for a tractor.

[0002]

2. Description of the Related Art A tractor is one in which an engine and a clutch housing are integrally connected, and a clutch housing, a transmission case integrated with the clutch housing, and the like are the main constituents of a tractor vehicle body. Therefore, the floor steps and the like provided near the clutch housing are susceptible to engine vibration.

[0003]

The present invention is directed to a connecting plate 3 between an engine body 1 and a clutch housing 2.
The step support device of the tractor is configured such that the front portion of the floor step 6 having the step guard 5 rising to the front side is supported by the step bracket 4 protruding laterally from the elastic bracket 7 with the elastic body 7 interposed therebetween.

[0004]

The floor step 6 is supported together with the front step guard 5 with respect to the step bracket 4 attached to the connecting plate 3 side with the elastic body 7 interposed therebetween. With the anti-vibration function, it is difficult to transmit strong vibrations directly, and maneuverability can be improved. Moreover, since the floor step 6 is supported by the step bracket 5 together with the step bracket 4 via the elastic body 7 when the operator steps on the floor step 6, the structure is simple and a safe supporting structure can be provided.

[0005]

EXAMPLE A tractor vehicle body 8 has an engine body 1 of an engine E disposed at a front end thereof, a clutch plate 2 is coupled to the rear side thereof with a coupling plate 3 interposed therebetween, and a front mission case is further disposed to the rear side thereof. 9 and the rear mission case 10 are integrally connected to each other. A front axle bracket 11 is provided in front of both left and right sides of the engine body 1, a front axle housing is supported on a lower side thereof, and front wheels 12 are provided at both end portions thereof by a steering handle 13 so as to be steerable. or,
Rear axles 14 have rear wheels 16 on the left and right sides of the rear transmission case 10 at the ends of a rear axle 15 mounted on the axle. The front wheels 12 and the rear wheels 16 are driven and driven by the engine E. You can.

A dashboard 18 is provided on both left and right sides of the steering handle 13 with a steering post 17 as a center, and a hood 20 that covers the engine room 19 is provided on the front side of the dashboard 18 so as to be openable and closable. Rear wheel 16
A hydraulic case 21 is provided above the rear mission case 10 in between.
Is provided, the cockpit 22 is provided on the upper side, and the fenders 23 are provided on both left and right sides. Reference numeral 24 is a lift arm.

A floor board 25 is provided between the dashboard 18 and the cockpit 22 so as to cover the upper side of the clutch housing 2 and the front mission case 9, and the floor steps 6 are arranged on both left and right sides thereof. ing. 26 is a brake petal. The floor step 6 is arranged on both left and right sides of the floor board 25, and has a bracket 27 at the rear part, which is fixed to a part of the vehicle body 8 and the front part projects laterally from the connecting plate 3. The step bracket 4 is attached so as to be supported.
Reference numeral 28 denotes a petal hole which is formed by cutting out the front edge of the floor step 6, and is provided at the installation position of the operation mechanism such as the brake petal 26 and the clutch petal.

The step bracket 4 attached to the left and right ends of the connecting plate 3 by bolts 29 has a stopper plate 30 fixed to the front and rear side and a lower end of the step guard 5 fixed to the front side by welding or the like. ing. To the inner end side of the step bracket 4, the front edge portion of the inner end of the floor step 6 is made to approach, and an elastic body 7 made of a grommet is interposed between the both, and a collar 31 is fitted. Insert the bolt 32 into the inside 31 and tighten with the nut 33. Also, the side end of the floor step 6 has a similar elastic body 7 and collar 3 for the step guard 5.
1 and the like are interposed and tightened with bolts 32 to connect. The front end edge 34 of the floor step 6 can be made to face the stopper plate 30 with a small gap 35 therebetween so as to receive the abutment due to the bending when the floor step 6 is stepped on.

Vibrations from the engine E, the clutch housing 2 and the like are transmitted to the connecting plate 3 and the step bracket 4 and the step guard 5 which are integral with the connecting plate 3, and are transmitted to the floor step 6 by the vibration isolation effect of the elastic body 7. Can be reduced. Further, when the operator stands on the floor step 6 and receives weight, the front edge 34 is supported by the stopper plate 30 by the bending of the floor step 6, and stable support is performed.

In FIG. 5 to FIG. 7, the accelerator petal 36
Is attached by a bracket 37 to the outer end of the floor step 6 on the right side. In order to set the tilt angle θ of the accelerator petal 36 toward the stepping side, a part 40 of the petal arm 38 that rotates integrally with the accelerator petal 36 is brought into contact with the stopper 39 of the bracket 37. 41 is an accelerator petal shaft, 42 is an accelerator cable, 43 is a return spring of the accelerator arm 38, and 44 is an outer wire receiver integral with the bracket 37.

Reference numeral 45 denotes a boss portion integrally welded to the accelerator arm 38, which can be integrally rotated by the petal shaft 41 and the pin 46. Reference numeral 47 is a metal that rotatably supports the petal shaft 41 with respect to the bracket 37. 8 and 9, the cockpit 22 includes a leather seat 53 and a back seat 5
4 and the like, and the shape of the leather sheet 53 is such that the seat pan 48 has a central portion that is thick.
The bottom plate 49 for receiving 8 is lower than the supporting portions 55 for supporting the left and right sliders 50, and is recessed. 51
Is a seat floor, and 52 is a rail for receiving the slider 50, which is fixed on the seat floor 51. Reference numeral 53 is a leather seat that covers the upper surface of the seat pan 48, and 54 is a back seat.

[Brief description of drawings]

FIG. 1 is a plan view of a floor step portion.

FIG. 2 is a front view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a side view of the tractor.

FIG. 5 is a side view of an accelerator petal portion.

FIG. 6 is a front view thereof.

FIG. 7 is a plan view thereof.

FIG. 8 is a side view of a cockpit section.

FIG. 9 is a front view thereof.

[Explanation of symbols]

 1 Engine body 2 Clutch housing 3 Connection plate 4 Step bracket 5 Step guard 6 Floor step 7 Elastic body

Claims (1)

[Claims] 1. A front portion of a floor step 6 having a step guard 5 rising to the front side on a step bracket 4 protruding laterally from a connecting plate 3 between an engine body 1 and a clutch housing 2 is provided with an elastic body 7. A step support device for a tractor in which a step is supported.