JPH04136325A - Frame of work vehicle - Google Patents

Abstract

PURPOSE:To prevent the damage of a body by externally extending a fender section from both right and left upper ends of a frame as an integral part thereof. CONSTITUTION:Fenders 15 and 15 forming the same plane as the fender sections 14 and 14 of a frame 3, are fixed to both right and left sides of a transmission casing 5 with bolts or the like, for covering the upper surface of crawlers 8 and 8 approximately over the overall length thereof. Then, an upper panel 12a is fitted to upper frames 19 and 19, and the panel 12a is engaged with the fenders 14 and 14, and 15 and 15 with side plates 13 and 13, and secured with bolts or the like at suitable positions, thereby completing the mounting of a body panel 12. According to the aforesaid construction, the ingress of sand or the like splashed with the crawlers 8 or the like can be prevented by concealing the inside of the frame 3.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a frame for a work vehicle, and particularly to a frame for a work vehicle that has a simplified structure around the frame in a small work vehicle. It is related to.

[Prior Art] Conventionally, work vehicles such as excavators and bulldozers have crawlers or tires protruding from both left and right sides of a vehicle body mounted on a frame. In the case of small work vehicles intended for work in narrow spaces, there are restrictions on downsizing the engine parts, etc. accommodated in the vehicle body, so the width of the vehicle body and the width of the left and right crawlers or the entire center of the tires are approximately the same. The two parts of the crawler or tires will be overhanging the vehicle body.

[Problems to be Solved by the Invention] When downsizing the conventional work vehicle described above, the lower surface of the vehicle body that protrudes above the crawler or tires must be protected against dirt and water that is repelled by the crawler, etc. It is conceivable that this would cause problems with durability since it would be defenseless. Therefore, it becomes necessary to protect the vehicle body by attaching a fender or the like to the vehicle body or frame to shield the upper surface of the crawler or tires, but this increases the number of parts and assembly man-hours, leading to an increase in cost.

Therefore, a technical problem arises that must be solved in order to provide a small work vehicle that prevents damage to the vehicle body and suppresses increases in cost.The present invention aims to solve this problem. purpose.

[Means for Solving the Problems] The present invention is proposed to achieve the above-mentioned object. In a frame of a work vehicle that is coupled to the front part of a transmission case, upper edges on both left and right sides of the frame are provided. It is an object of the present invention to provide a frame for a work vehicle, characterized in that a fender portion is integrally extended outward from the frame.

[Function] The fender portions protruding outward from the left and right upper edges of the frame cover the upper surfaces of the left and right crawlers, tires, etc. When the lower end portion of the body panel is attached to the fender portion, the interior of the frame is shielded, and there is almost no intrusion of dirt, water, etc. that are repelled by crawlers or the like.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 shows an ultra-compact excavator (1) and (2)
) is a boom part, (3) is a frame, and a bracket (4) for attaching the boom part (2) is integrally formed therein. (5) is a transmission case which is connected to the rear end of the frame (3) by bolts and nuts (not shown). Also, (6X6) is a sprocket wheel, (7) (7) is a passive wheel, (8) (8) is a crawler, (9) is a foldable rear step, (10) is a
) is a rotating saddle seat, and Q +) (1+) -... is an operating lever. The body panel (■) mounted on the upper part of the frame (3) and the mission case (5) is attached to the left and right crawlers (8) as shown in the front view of Figure 2.
) (8) Removable left and right side plates (1) that are approximately equal to the gold mine between
The lower end of ■0■ consists of the upper panel (12a), the fender parts (W) (b) provided on the frame (3), and the fender (1'l) fixed on the transmission case (5).
It prevents dirt, water, etc. that are repelled by crawlers (8) (8) from entering the inside of the body panel (■).

3 to 5 show the frame (3) and the transmission case (5), and the fender portion (141 (+
4) is installed protrudingly. The rear wall (+
A mission case (5) is attached to the transmission case (5), and the input shaft (r?) of the mission case (5) protrudes into the frame (3) through a hole drilled in the rear wall (IF), as shown in the figure. Although omitted, power is transmitted from the engine mounted on the top of the mission case (5) via a belt.
The sprocket wheels (6) (6) shown in FIG. 1 are driven. Further, a hydraulic pump, a pressure oil tank, etc., to which power is transmitted from the engine, are arranged within the frame (3).

There are frames (
The fender (1'9) that forms the same plane as the fender parts (111, 14) of In Fig. 3, (g) (υ is the operating lever θ1 shown in Fig. 1) θ1)... and the body panel (φ, etc.) is the upper frame that supports it, and its front and rear ends are the same as those mentioned above. Fender part 04) (14) and mission case (5)
Rear and fender - θ'9(1';),! : are respectively combined. Then, attach the upper panel (12a) to the upper frame (molding), and
The side plate θi (+4) is engaged with the fender part (→ and the fender part), and the appropriate parts are connected with bolts or the like to complete the installation of the body panel (6).

Note that this invention can be modified in various ways without departing from the spirit of the invention, and it goes without saying that this invention extends to such modifications.

[Effects of the Invention] In this invention, as detailed in the above-mentioned embodiment, the frame and the fender portion are integrally formed, so that the various mechanical parts inside the frame and the body panel are protected from dirt, sand, etc. In addition, there is no need to attach the fender part as a separate part, which reduces the number of parts and assembly man-hours, contributing to cost reduction.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view of the ultra-compact excavator car, Fig. 2 is a front view of the same, Figs. 3 to 5 show the frame and transmission case, and Fig. 3 is FIG. 4 is a side view, FIG. 4 is a plan view, and FIG. 5 is a front view.

Claims (1)

[Claims] 1. A frame for a working vehicle that is coupled to a front part of a transmission case, wherein fender parts are integrally extended outward from upper edges on both left and right sides of the frame.