JPH06321135A - Work vehicle bonnet locking structure - Google Patents

Abstract

PURPOSE:To confirm easily the bad engagement of a bonnet by means of right and left inclination by forming the right and left lower ends of a bracket unevenly, in the case of structure in which the bracket that is on the front end side of the bonnet and equipped with slits, is engaged with an engage-stopping rod on a machine body side. CONSTITUTION:In the case of the bonnet B of a work vehicle, a bracket 12 that is on the front end side and equipped with slits 12a, is engaged with the engage-stopping rod 13 of an engine E, and at the same time a pair of front and rear elastic plate springs 14 that are on the rear end side, are elastically engaged with the rod 15 of a tank T, and at the bracket 12, the respective slits 12a are formed in the longitudinal direction of a machine body on both right and left sides 12A, and the respective right and left lower ends of both right and left sides 12A are formed unevenly. Also, at both right and left sides 12A, upper portions 12b are set longer than the slits 12a and lower portions 12c in the longitudinal direction of the machine body, and at the same time the lower surfaces of the upper portions 12b are made to be engaged with the engage-stopping rod 13. As a result, the bad engagement of the bonnet B can be easily confirmed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonnet locking structure for a work vehicle such as a walk type rice transplanter or a walk type cultivator. More specifically, a bracket having one end of a removable bonnet provided on the inner surface of the bonnet. The present invention relates to a structure for engaging and connecting a locking rod provided on the machine body side in the machine body front-rear direction.

[0002]

2. Description of the Related Art Conventionally, when one end side of a bonnet is engaged and connected to a locking rod on the machine body side in the machine longitudinal direction, a part of the conventional structure will be described using an embodiment of the present invention. As shown in FIG. 1, a bracket 12 having a slit 12a in the front-rear direction is provided on the inner surface of the bonnet B, and a locking rod 13 engageable with the slit 12a of the bracket 12 is provided on the machine body side. The one end side of the removable bonnet B is engaged and connected in the machine longitudinal direction, and the left and right side pieces of the bracket 12 are formed to have the same vertical length.

[0003]

When the one end side of the bonnet is engaged and connected to the locking rod on the machine side, the engagement state between the bracket of the bonnet and the locking rod on the machine side is hidden in the bonnet. Since it has a structure that cannot be seen, it is engaged and connected by relying on the feel of the finger and the feeling of the engagement sound, and the bracket does not enter the slit of the bracket, In some cases, the other end of the bonnet is unexpectedly fixedly connected to the machine body while being mounted, and in such a case, there is a disadvantage that one end of the bonnet floats and rattles.

An object of the present invention is to prevent rattling of the bonnet by making it possible to confirm whether the engagement and connection of the bonnet are reliable.

[0005]

A characteristic structure of the present invention for achieving the above object is that the left and right lower ends of a bracket provided on the inner surface of the hood are formed in a stepwise difference.

[0006]

[Operation] Since the left and right lower ends of the bracket are formed in different steps, when the bracket is placed on the locking rod, that is, the locking rod does not enter the slit of the bracket When the bracket is mounted, it can be confirmed that the locking rod is not inserted in the slit of the bracket because the bonnet tilts to the left and right when the bonnet is pressed from above due to the step difference between the lower left and right ends of the bracket.

[0007]

As a result of the above construction, it is possible to confirm the engagement failure of the bonnet and prevent the rattling due to the engagement failure of the bonnet.

[0008]

EXAMPLE FIG. 6 shows a walk-behind rice transplanter, in which an engine E is mounted on a frame 1 connected to the front part of a traveling mission case M, and the rear part of the traveling mission case M is mounted. Fixed and extended pipe frame 2
Through, constitute the body of the planting transmission case 3 of the seedling planting apparatus A disposed in aft body and integrally connected to the left and right lateral side of the traveling transmission case M, the horizontal axis P ₁ around A pair of left and right traveling wheels 5 and 5 are rotatably and vertically supported with respect to the machine body through a wheel transmission case 4 which is pivotally supported, and a spare seedling box 6 is provided between the left and right wheels 5 and 5. The support frame 7 is disposed, the ground float 8 is connected to the lower part of the machine body so as to be vertically swingable around the rear fulcrum P ₂ and to be freely rolled left and right around the front and rear axis P ₃ , and the engine E From the upper part of the traveling mission case M to the engine E and the fuel tank T to cover the upper part of the bonnet B, and from the rear part of the traveling mission case M to the planted mission case 3 which also serves as a seedling support stand C. Is provided and configured.

As shown in FIG. 1, the fuel tank T is
The support stay 9 extending from the engine E and a support stay 10 standing upright from the connecting portion of the traveling mission case M and the pipe frame 2 are fixedly connected to each other via a tank mounting stay 11 that is connected. The support frame 7 of the seedling placing box 6 is erected and connected across the support stay 10 and the upper part of the planting mission case 3.

Next, the support structure of the bonnet B will be explained. The front end of the bonnet B is connected to the engine E with a bracket 12 provided with a slit 12a provided in the inner surface of the bonnet B in the machine front-rear direction and bolted to the engine E. As shown in FIG. 2, a tank T is provided with a pair of front and rear elastic leaf springs 14 provided on the inner surface of the bonnet B on the rear end side. It is elastically engaged with the rod 15 from above.

The bracket 12 on the inner surface of the bonnet B
As shown in FIGS. 3 and 5, the front and rear slits 12A and 12A are formed in an inverted U-shape when viewed from the front.
a, 12a, and the left and right side pieces 12A, 12
The lower end of A is configured in a step difference between left and right.

The left and right side pieces 12 of the bracket 12 are also provided.
In A, the upper part 12b is the lower part 1 than the slit 12a.
2c longer than the 2c in the longitudinal direction of the aircraft
The lower surface of b is mounted on the locking rod 13 on the machine body side so that it can be engaged and connected.

Further, as shown in FIG. 2, the locking rod 13 on the fuselage side has a trapezoidal shape in plan view, which is narrower toward the rear, and is accompanied by the engagement and connection of the bracket 12 and the locking rod 13. The gap between the left and right side pieces 12A, 12A of the bracket 12 and both side portions 13a, 13a of the locking rod 13 is configured to be small, and is configured to suppress backlash in the left and right direction.

As shown in FIG. 1, a center mascot 16 and a dry battery type light 17 are mounted on the upper surface of the front end side of the bonnet B, and the dry battery type light 17 is installed.
Is the center mascot 16 for the hood B
Further, it is detachably connected to a light mounting stay 18 which is jointly fastened to the bracket 12, and can be detached and used as a flashlight.

[Other Embodiments] In the above-mentioned embodiment, the bonnet structure of the walk-behind rice transplanter is exemplified, but the bonnet structure of the walk-type cultivator or tractor, or the riding-type rice transplanter or the riding-type lawn mower is used. It may be.

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

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a bonnet locking structure.

FIG. 2 is a plan view of the same.

FIG. 3 is a vertical sectional front view of the same.

FIG. 4 is a partially cutaway rear view of the same.

FIG. 5 is a perspective view of a bracket

[Figure 6] Side view of the entire rice transplanter

[Explanation of symbols]

 12 Bracket 12a Slit 13 Locking rod B Bonnet

Claims (1)

[Claims] 1. A bracket (12) having a slit (12a) in the longitudinal direction of the machine body provided on one side of a removable bonnet (B) on the inner surface of the bonnet (B) and for locking provided on the machine body side. A bonnet locking structure for a working vehicle that engages and connects a rod (13) in the longitudinal direction of the machine body, in which the left and right lower ends of a bracket (12) provided on the inner surface of the bonnet (B) are formed in different steps. Work vehicle bonnet locking structure.