JPH0789469A - Rear mount bracket of tractor - Google Patents

Abstract

PURPOSE:To reduct the cost by commonly using a spacer for fitting a rear axle housing integral with a transmission case to a seat floor supported thereon among different kinds of machine specification. CONSTITUTION:A space 4, which can be installed, with the fitting direction changed, is provided between a rear axle housing 2 integral with a transmission case 1 and a seat floor 3 fitting part for covering the upper side of the transmission case 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear mount bracket for a tractor, in which a seat floor is mounted and supported on a rear axle housing via a spacer.

[0002]

2. Description of the Related Art A tractor vehicle body is often different in length or wheel base depending on specifications. Especially, since the relational position between the mission case, which is a part of the vehicle body, and the seat floor that covers the upper part of the vehicle body often changes, a space for connecting them is often used.
It is intended to share the service and to construct it economically.

[0003]

SUMMARY OF THE INVENTION In the present invention, a mounting direction is provided between a rear axle housing 2 which is integral with a mission case 1 and a seat floor 3 mounting portion which covers the upper portion of the mission case 1. Instead, the rear mount bracket of the tractor is provided with a mountable spacer 4.

[0004]

The seat floor 3 mounted on the vehicle body of the tractor and the rear axle housing 2 are
The spacer 4 is interposed and supported and attached. When the wheel bases between the front wheels and the rear wheels change due to different tractor specifications, the space between the vehicle bodies is changed by moving the spacer 4 back and forth or changing the front and rear directions. The mounting position between the rear axle housing 2 of the server 4 and the mounting position of the seat floor 3 can be changed, and the spacers 4 of the same standard can be shared to reduce the cost.

[0005]

1 to 5, an engine E is located at the front of a tractor vehicle body 5, and a clutch housing 6, a front mission case 7 and a rear mission case 1 are provided on the rear side of the engine E. This engine E is connected as one
A front axle housing 10 is mounted on the left and right sides of the front front axle bracket 8 for supporting front wheels 9, and a rear axle housing 2 is integrally connected to the left and right sides of the rear mission case 1 to form an outer side. Rear wheel 1
1 is mounted. The front wheels 9 and the rear wheels 11 can be transmitted by driving the engine E.

A hydraulic case 12 is attached to the upper portion of the rear mission case 1, and a lift shaft 13 is used to lift the lift case.
The frame 14 is rotated up and down. A lower link 15 is vertically rotatably connected to a lower portion of the rear axle housing 2 by a link pin 16 and is connected to a lift arm 14 by a lift rod 17 so that the lower link 15 can be moved up and down. 18 is an engine hood, 19 is a cabin, 20 is a steering wheel, 21 is a fender, 22 is a cockpit, and 23
Is a main gear shift lever, and 24 is a sub gear shift lever.

Side frames 25 in the front-rear direction along the left and right sides of the vehicle body 5 are provided so as to be supported from the lower part of the step floor 26 to the lower part of the seat floor 3. The seat floor 3 is formed in a bucket shape, has a cockpit 22 mounted in the center, and has fenders -21 that cover the rear wheels 11 on both left and right sides. Plate brackets 27 and 28 are provided at the front and rear of the side frame 25,
These are mounted and supported on the plate bracket 29 on the side of the clutch housing 6 with the anti-vibration rubber 30 interposed.
An anti-vibration rubber 32 and a spacer 4 are interposed and supported on the plate bracket 31 of the rear axle housing 2. The cabin 19 is also supported via the side frame 25, the vibration-proof rubbers 30, 32, and the like.

The spacer 4 comprises a pair of front and rear quadrilateral plate members 33 which are parallel to each other at a constant inclination angle and whose upper and lower ends are integrally connected by horizontal mounting plates 34 and 35. By changing the front-rear direction or the left-right direction of the spacer 4, the spacer 4 can be attached or replaced between the lower vibration-proof rubber 32 and the upper plate bracket 28.

A bolt hole is formed in the central portion of the lower mounting plate 34, and the bolt is inserted through the plate bracket 31 and the bolt hole formed in the central portion of the upper rubber vibration isolator 32. It is tightened by 36. The upper mounting plate 35 is fixed to the plate bracket 28 on the side frame 25 side by bolting. A large number of bolt holes are provided in the upper mounting plate 35 so that bolts can be tightened in the bolt holes that overlap each other.

Therefore, for a vehicle body 5 having a short wheel base, the spacer 4 is attached in a state A in which the lower end side is the front and the upper end side is the rear, and the spacer 4 is attached to the vehicle body 5 having the long wheel base. Install this in the reverse state B. Further, when there is no difference in length until the spacer 4 is turned back and forth, the direction of the spacer 4 remains A or B,
Simply move it back and forth to attach it.

The left and right spacers 4 are formed in an octagonal shape with their lower ends open outward. However, the left and right side frames 25 are wide or the antivibration rubber 32 on the rear axle housing 2 side is wide. In the narrow form, the left and right spacers 4 are interchanged and attached to each other so that the spacers can be opened inward, and the sharing can be further enhanced. 1 and 2
As described above, in the mounting and supporting structure of the spacer 4 and the seat floor 3 and the like to the rear axle housing 2, in the form having the cabin 19 to the safety frame, the lower support column 37 for supporting them may be used. This rear support 3
7 has a U-shaped lower bracket 38 and is attached to the rear axle housing 2, and its upper end is covered between the left and right fenders 22. It also has the function of a safety frame. The plate bracket 31 is integrally attached to the rear column. Further, depending on the model, specifications, etc., the mounting position of the rear strut 37 is in the front position in the short form A of the wheel base and in the rear position in the long form B, and the position of the plate bracket 31 is also different in the front and rear positions. Will be set to. Therefore, in accordance with this, the spacer 4 is oriented in the same manner as described above according to the plate bracket 31,
Or position to install.

A chain bracket 40 for connecting the check chain 39 is provided on the lower bracket 38. PTO is a power take-off shaft. 6 and 7, the rear support column 37 is mounted and supported on the lower bracket 38 with a vibration-proof rubber 41 interposed. A chain bracket 40 is integrally formed on the lower side of the lower bracket 38. To do. Such a lower bracket 38 is formed in a U shape in a side view, fitted into the rear axle housing 2 and attached with a bolt 42. The mounting strength can be increased and the configuration can be simplified. Reinforcing ribs 43 are formed on the peripheral surface of the rear axle housing 2, and a lower bracket 38 portion facing the reinforcing ribs 43 is formed with a notch 44 so that the lower bracket 38 is fitted in the lower bracket 38. Is formed as wide as possible. 45 is an axle.

[Brief description of drawings]

FIG. 1 is a side view of a rear portion of a tractor vehicle body.

FIG. 2 is an enlarged side view of a part thereof.

FIG. 3 is a side view and a rear view of a part thereof.

FIG. 4 is a rear view of the tractor.

FIG. 5 is a side view thereof.

FIG. 6 is a side view of an embodiment of another part.

FIG. 7 is a plan view of a part thereof.

[Explanation of symbols]

 1 Mission Case 2 Rear Axle Housing 3 Seat Floor 4 Spacer 25 Side Frame 33 Plate Material 34 Mounting Plate 35 Mounting Plate

Claims (1)

[Claims] 1. A spacer which can be mounted by changing the mounting direction between a rear axle housing 2 which is integral with the mission case 1 and a seat floor 3 mounting portion which covers the upper portion of the mission case 1. Rear mount bracket for tractor with four.