JPS5815265Y2 - Tractor bonnet structure - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a tractor bonnet structure that allows the top plate of the tractor bonnet to be left open as wide as possible.

Generally, the entire bonnet of a tractor is constructed so that it can be opened and closed from the center of the front end, but in recent tractors, the so-called front grille at the front end and the side plates on the rear side are fixed, similar to the instrument panel. A type of top plate that can be opened horizontally has been adopted.

This type of bonnet is equipped with a support rod to keep the top open, but in this case, the tip of the support rod faces the hinge side, so when it is closed, the tip of the support rod faces the hinge, so it should be slightly It is customary to keep it short.

With this, the overall length of the support rod cannot be made very long, so when the top plate is opened and tensioned, it is not possible to leave the top plate open too wide, which results in internal inspection and maintenance of the engine, etc. However, due to the large space available, the work could not be done easily or accurately.

This idea was devised to solve the above problem, and its purpose was to allow the top of the bonnet to be left wider open, thereby making internal inspection and maintenance more efficient and efficient. The purpose of this invention is to provide a tractor bonnet structure that can be used accurately, and the present invention will be explained below with reference to specific examples shown in the drawings.

What is shown in Figures 1 to 4 is an example of an agricultural tractor. 1 is a front grill with a headlamp etc. attached, and the grill 1 is on the fixed side and extends in the width direction to the earthen wall at the rear end. The front top plate holder has an integrally grooved edge 1a,
A vertically penetrating hole 2 is formed near the center of the bottom of the groove in the width direction.

Reference numeral 3.3 denotes left and right side plates which are also installed oppositely on the rear side of the front grill 1 as fixed sides, and inside each of the upper ends, the side top plate holder which is quite long in the front and back direction has edges 3a, 3a. Symmetrically grooved.

This side plate 3 covers both sides from the radiator at the front to the engine.

Reference numeral 4 denotes a top plate having a protruding piece 4a on the lower part of the entire circumference and having a shape that bulges slightly upward, and the top plate 4 has a protruding piece 4a on the lower part of the entire circumference, and each of the above-mentioned supports has an edge 1a.
, 3a, and closes the upper surface of the right side plate 3. On the inner surface of the upper end of the right side plate 3, there are provided a plurality of opening/closing support shafts 5 whose axial directions are in the front and back directions.

A curved support stay 6 that accompanies the top plate 4 is provided between the support shaft 5 and the top plate 4, respectively.

On the other hand, a pivot bracket 8 with a spring 7 is protruded from the left bottom surface near the front end of the top plate 4, and a hole extending in the front and rear direction is passed through the pivot bracket 8 to form a slightly thick elongated hole.

The base end 9 of the bonnet support rod 9 is connected to this bracket 8.
The proximal end 9a is bent into an L shape.

This support rod 9 includes a main rod portion 9b having a longitudinal length corresponding to approximately the entire width of the top plate 4, and a first rod portion 9b bent in a downward direction.
A curved rod portion 9C and a second portion curved to the right from the rod portion 9c.
A curved rod portion 9d1, a third curved rod portion 9e bent forward, and a fourth curved rod portion 9f shortly curved parallel to the second curved rod portion 9d are integrally formed in the above order. When the top plate 4 is closed, the top plate 4 is tilted parallel to the top plate 4 due to the play of the pivot bracket 8 so that the tip is at the rear, and is hung by the U-shaped spring 10 in the center, and the support rod 9 2nd curve rod part 9d
The fourth curved rod part 9f is located below the opening/closing support shaft 5 side, but is located considerably lower; on the other hand, when the top plate 4 is opened,
As mentioned above, each bent rod part 9c...9f is long, so when the fourth bent rod part 9f is inserted into the hole 2, the top plate 4 is opened at a large angle. 9
Since the supporting rod 9 itself runs obliquely rather than parallel to the width direction of the bonnet, the supporting rod 9 itself can be made longer, so that it becomes larger.

It should be noted that even if the support rod 9 is returned to its original position with the top plate 4 open, its tip will not interfere with the right side plate 3 or the like at all, and the same holds true during the closing operation.

This idea is as described above. Therefore, the tip of the support rod is configured in an extended shape without interfering with the hinge side, so when the top plate is opened, a large opening angle can be obtained due to the long support rod, and maintenance of the engine etc. Inspection and maintenance can be carried out efficiently and accurately in a wide space, and since it is difficult for the operator to touch the top plate, there is no risk of it closing unexpectedly.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional front view of the bonnet showing an example of this invention, Fig. 2 is a side sectional view along the line ■-■ in Fig. 1, Fig. 3 is a side sectional view showing the top plate in an open state, The figure is a perspective view of the support rod. 3...Side plate, 4...Top plate, 5...
... Opening/closing support shaft, 9... Bonnet support rod.

Claims (1)

[Scope of utility model registration request] Divide the top plate of the tractor bonnet from the other side plates,
The top plate is configured to open horizontally around an opening/closing shaft whose axis is directed in the longitudinal direction of the tractor, and a bonnet support rod is provided at the bottom of the top plate, the base end of which is pivoted near the free end of the bottom. The tip of the support rod is detachably provided so as to face the pivot side, and a portion of the tip of the support rod corresponding to the vicinity of the pivot axis,
A bonnet structure for a tractor, characterized in that it is curved to extend downward so as to pass below a pivot shaft.