JPS58620Y2 - Work vehicle bonnet structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bonnet structure for a working machine in which an engine muffler protrudes from an upper surface through-hole of an engine bonnet that can swing up and down.

In the bonnet structure of the above-mentioned work equipment, in order to facilitate internal inspection, when opening the bonnet wide, there is a relatively large size on the bonnet side that is large enough to not hit the engine muffler that protrudes through it. Although a notch is required, there is a drawback that a large amount of rainwater etc. can enter through this notch, causing problems.

The present invention attempts to overcome these drawbacks through relatively simple improvements.

That is, in the bonnet structure of the working machine described at the beginning, the present invention provides the following advantages:
The hood is characterized in that a portion of the bonnet on the opposite side of the swing axis is configured to be openable and closable with respect to the muffler.

In other words, if the bonnet were to swing and close, a simple improvement could be made in which only the part that hits the engine muffler would be evacuated by the opening operation, allowing the bonnet to swing a lot and allow for a thorough internal inspection. In the closed state, the recessed portion can be brought closer to the engine muffler and the gap therebetween can be reduced as much as possible, thereby suppressing the entry of rainwater and the like as much as possible, and reducing the troubles associated with this.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

The traveling body 1 is equipped with a crawler type traveling device 2, and a swivel base 3 is provided so as to be freely rotatable around the vertical axis, and a bracket 4 is provided at one end of the swivel base 3 so as to be freely rotatable around the vertical axis. A boom 5 and an arm 6 are attached to this bracket 4.
, packets 7 are pivotally connected in that order, and these 5, 6.7 are configured to be movable up and down by boom cylinder 8, arm cylinder 9, and packet cylinder 10, so that the ground is directed toward the aircraft side. While excavating, turn table 3
The bracket 4 is configured to be able to dig side ditches by rotating the brackets 4 about their respective vertical axes.

Further, an arm 12 having an earth removal plate 11 at its tip is pivotally attached to the traveling body 1 so as to be able to swing up and down, and is configured to be driven by a hydraulic cylinder 13 so as not to swing, thereby providing a working vehicle capable of earth removal work. It consists of:

An engine bonnet 14 that covers the mounted engine E and its attached equipment is configured to be swingable and open about the horizontal swing axis X, and an engine muffler 15 is configured to protrude from the upper surface through hole 14a of this bonnet 14. 0 Of the bonnet parts surrounding the through hole 14a, a part 14b on the opposite side of the swing axis X of the bonnet 14 from the muffler 15 is configured to be swingable and retractable via a hinge part 14c, The structure is such that the bonnet 14 can be swung open and closed without hitting the engine muffler 15 with the through hole 14a enlarged by holding this swinging retracted position with the holder 14d.

Then, in the closed state, the bonnet portion 14b
By blocking the through hole 14a, the through hole 14a is narrowed, and the structure is designed to suppress the intrusion of rainwater and the like as much as possible.

Note that the portion 14b of the bonnet 14 on the opposite side to the swing axis X
The opening/closing configuration can be changed to a sliding configuration in addition to the swinging configuration as in the embodiment.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the bonnet structure of a working machine according to the present invention, and FIG. 1 is an overall side view of the working machine, and FIG. 2 is a perspective view of the main parts. 14...Engine bonnet, 14a...
...Through hole, 14b... Opposite side part, X...
... Swing axis.

Claims (1)

[Scope of utility model registration request] Upper surface through hole 1 of engine bonnet 14 that can be vertically swung
4 A bonnet structure of a working machine in which an engine muffler 15 is protruded from a portion of the bonnet that frames the through hole 14a, a portion on the side opposite to the swing axis X of the bonnet 14 with respect to the muffler 15. A bonnet structure for a work machine, characterized in that 14b is configured to be openable and closable.