JPH0747269Y2 - Agricultural tractor pedal support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is an agricultural machine in which a pair of left and right steering brake pedals are provided on one side in the machine width direction and a main clutch pedal is provided on the other side. Regarding the pedal support structure of the tractor,
A pipe frame is installed over a pair of left and right fuselage frames with an engine mounted at the front and a transmission case connected at the rear, and a pair of left and right brake pedals at one end and a main clutch at the other end on the pipe frame. The present invention relates to a pedal support structure for an agricultural tractor in which a pedal support shaft equipped with a pedal is rotatably fitted.

[Conventional technology]

Conventionally, a pedal support structure of an agricultural tractor is, for example, as disclosed in Japanese Utility Model Laid-Open No. Sho 61-111880, a pair of left and right steering brake pedals on one end side of a pipe frame laid across a pair of left and right body frames. The pedal support shaft having the main clutch pedal mounted on the other end is rotatably fitted therein.

[Problems to be solved by the device]

In this way, a pair of left and right steering brake pedals is mounted on one end side and a pedal support shaft on which the main clutch pedal is mounted on the other end side is rotatably fitted into the pipe frame laid across the pair of left and right body frames. With such a structure, it is necessary to assemble pedal parts to the machine body frame one by one, and it is troublesome to assemble it to the machine body frame.

An object of the present invention is to make it possible to easily attach the pedal to the machine body frame by devising a structure for attaching the pedal to the machine body frame.

[Means for Solving the Problems]

A characteristic configuration of the present invention for achieving the above-mentioned object is that the control deck is detachably connected to a pair of left and right body frames via a pair of left and right support legs that are continuously provided from the deck. The point is that the pipe frame for supporting the pedal support shaft is installed over the pair of left and right support legs of the steering deck, and the operation and effect are as follows.

[Action]

The control deck is configured to be detachably attached to the machine frame, and the pipe frame for supporting the pedal support shaft is installed from the control deck to the pair of left and right support legs that are connected continuously. By installing the pedals in advance, the pedals can be mounted in a set state when the control deck is mounted on the aircraft frame.

[Effect of device]

As a result of the above configuration, it is easy to assemble the pedals to the machine frame, and moreover, because the pedals are assembled to the control deck, a dedicated pedal support frame is provided for unitization, and the pedals are attached to it. Compared with the case of assembling and assembling to the machine frame, pedals can be assembled at the time of assembling the control deck to the machine frame, and the assembling work efficiency of the entire machine can be improved.

〔Example〕

As shown in FIGS. 4 and 5, an engine (E) and a main clutch housing (C) directly connected to the engine (E) are provided in front of a pair of left and right machine frames (1A) and (1B) in the longitudinal direction of the machine. It is mounted, the mission case (M) is connected to the rear part of the body frame (1A), (1B), and it is left and right above the main clutch housing (C) and the mission case (M). And a flat control deck (6) are arranged in series, and the front wheels (2) and the rear wheels (3) are of a four-wheel drive type that are driven via differential mechanisms (4) and (5), respectively. It constitutes an agricultural tractor.

As shown in FIG. 1, the steering deck (6) is U-shaped in plan view having a notch for projecting the upper surface of the clutch housing (C), and its rear end reinforces the flat plate (6a). From the substantially U-shaped reinforcing frame (6b) in plan view via a pair of left and right supporting legs (6A) and (6B)
Brackets (1A ′), (1
B ') is internally fitted and bolt-connected, and the front end side of the steering deck (6), that is, the reinforcing frame (6b)
The front end side of is connected to the brackets (1A ″) and (1B ″) that extend upward from the sides of the machine frames (1A) and (1B) by bolts, and can be attached to and detached from the machine frames (1A) and (1B). Are linked to.

Then, as shown in FIG. 2, a pipe frame (7) for supporting a pedal support shaft is erected over a pair of left and right support legs (6A), (6B) of the steering deck (6). (7) A pair of left and right steering brake pedals (8A) and (8B) are attached to one end side, and a pedal support shaft (10) with a main clutch pedal (9) attached to the other end side is rotatably fitted therein. Has been done.

Of the left and right brake pedals (8A) and (8B), the right brake pedal (8A) is loosely fitted to the pedal support shaft (10),
As shown in FIG. 4, it is connected to the right steering brake operation arm (12A) via the rod (11A), and the left brake pedal (8B) is fixed to the pedal support shaft (10) and is connected to the rod ( 11B) via left steering brake operating arm (12B)
Is connected with. And the main clutch pedal (9)
Is loosely fitted to the pedal support shaft (10) and, as shown in FIGS. 3 and 4, is connected to the main clutch operation arm (14) via the rod (13). The main clutch pedal (9) is attached to the left support leg (6B) of the steering deck (6).
A circular arc groove (15) is formed to allow rotation of the connected operation arm (9A).

The brake pedals (8A) and (8B) and the main clutch pedal (9) are preliminarily assembled to the steering deck (6) and assembled to the machine body frame (1) in a set state.

Incidentally, (16) in FIG. 2 is a power transmission shaft from the clutch housing (C) to the transmission case (M).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a pedal support structure for an agricultural tractor according to the present invention. FIG. 1 is a perspective view of a main part, FIG. 2 is a longitudinal rear view of the main part, and FIG. 3 is a partially broken side view of the main part. FIG. 4 is a plan view showing the frame structure, and FIG. 5 is a side view showing the entire agricultural tractor. (1A), (1B) …… Airframe, (6) …… Control deck, (6A), (6B) …… Support legs, (7) …… Pipe frame, (8A), (8B) …… Brake pedal, (9) ...
… Main clutch pedal, (10) …… Pedal support shaft, (E)
…… Engine, (M) …… Mission case.

Claims (1)

[Scope of utility model registration request] 1. A pipe frame (7) is installed across a pair of left and right body frames (1A), (1B) having an engine (E) mounted at the front and a transmission case (M) connected at the rear. A pair of left and right brake pedals (8A) and (8B) is attached to one end of the pipe frame (7), and a pedal support shaft (10) having a main clutch pedal (9) attached to the other end is rotatably fitted therein. In the pedal support structure of the agricultural tractor, a steering deck (6) is provided to the pair of left and right body frames (1A) and (1B), and a pair of left and right support legs (a pair of support legs connected continuously from the deck (6)). 6A) and (6B) are configured to be detachably connected, and the pedal support shaft is supported over the pair of left and right support legs (6A) and (6B) of the steering deck (6). Agricultural tractor pedal support on which the pipe frame (7) is installed Holding structure.