JPH08218428A - Back hoe - Google Patents

Abstract

PURPOSE: To facilitate maintenance in an engine room by easily arranging apparatus for a prime mover section in an engine bonnet in a back hoe where a driver's seat is arranged above the engine bonnet, and a water cooled engine 15 transversely arranged inside the engine bonnet. CONSTITUTION: In a back hoe where a driver's seat 7 is arranged above an engine bonnet 6, and a water cooled engine 10 is transversely arranged inside the engine bonnet 6, a recessed section 12 is formed in a lateral middle part on the upper face of the engine bonnet 6, and a driver's seat 7 is enteredly arranged in the recessed section 12. The upper part of a radiator is enteredly arranged in the internal space Sa of a projecting part 13a on one side between upward projecting parts 13a, 13b located on both sides of the recessed part 12, and apparatus 15 attached to the engine are enteredly arranged in the internal space Sb of the convex part on the other side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relatively small backhoe characterized by a structure of a driving part.

[0002]

2. Description of the Related Art Conventionally, as a small backhoe, it is known that a driver's seat is arranged above an engine hood having a flat upper surface, and a water-cooled engine is horizontally arranged inside the engine hood. ing.

[0003]

The height of the seat surface of the driver's seat installed above the engine hood from the step is ergonomically determined, and the height of the fuselage is made too large for stability. In addition, it is also impossible to extend the position of the rear end of the machine body to the rear greatly. Under such restrictions, it is difficult to deploy the engine drive part high to raise the engine bonnet upper surface or to make the engine drive part wide in the front and rear, and as a result, the internal space of the engine hood, that is, the engine room, becomes smaller. It becomes low and narrow in the front and rear, and it becomes difficult to design the layout of various internal equipment such as the engine,
It was difficult to maintain the interior equipment that was forcibly placed.

The present invention has been made paying attention to such a point, and the driver's seat above the engine hood can be easily seated without increasing the height of the body or increasing the front-rear length. It is an object of the present invention to arrange the internal equipment of the engine bonnet easily and to arrange the interior parts of the engine bonnet easily, and to configure the driving part so that the maintenance of the internal equipment can be performed easily.

[0005]

A characteristic feature of the present invention is that a driver's seat is arranged above an engine bonnet and a water-cooled engine is horizontally installed inside the engine bonnet. A recess is formed in the middle part, and a driver's seat is placed in the recess, and the upper part of the radiator is placed in the inner space of one of the upward projections located on the left and right of the recess, and the other This is because the engine accessories were placed in the internal spaces of the convex parts of the.

[0006]

According to the above structure, since the driver's seat is inserted into the recess on the upper surface of the engine bonnet, it is possible to dispose the convex portion having a high upper surface of the engine bonnet on the left and right of the driver's seat while keeping the driver's seat at a comfortable height. That is, the height of the engine room is low at the location where the recess is formed where the driver's seat is inserted, and the height of the engine room is high at the left and right convex portions. Then, in the inner space of the convex portion, the upper part of the tall radiator, and
Since it is possible to easily insert interior accessories such as batteries and air cleaners into the interior, it is possible to form a relatively large engine room without constraining the driving part to a low level or making it wider in the front and rear.

[0007]

As a result, the driving part above which the driver's seat above the engine bonnet can be arranged at a comfortable height can be easily designed and maintained for interior equipment, and the driving part can be made compact. It is now possible to provide an advantageous backhoe in the interior design and maintenance of equipment.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a swivel base 3 is mounted on a traveling vehicle equipped with a pair of left and right crawler type traveling devices 1 and a tosa 2 which can be moved up and down so as to be driven and swiveled around a vertical axis, and swiveled. A swing bracket 4 is attached to the front end of the base 3 by a swing cylinder Cs so as to be swingable right and left, and a boom 5a driven up and down by a boom cylinder C1, an arm 5b bent and extended by an arm cylinder C2, and a bucket cylinder C3 are swung. A backhoe device 5 in which buckets 5c that are moved and turned in reverse are sequentially connected is attached to the swing bracket 4, and a driver's seat 7 is arranged above an engine hood 6 arranged at a rear portion of a swivel base 3, and a driver's seat 7 By providing a canopy 8 that covers the upper part of the, a small backhoe with a dozer is configured.

The crawler type traveling device 1 is provided with a hydraulic cylinder C4.
Each of the left and right ends 2a of the tozer 2 can be moved laterally by a hydraulic cylinder C5 while the left and right crawler type traveling devices 1 can be changed in contact with each other. It is configured to be freely retractable, and the dozer end portions 2a on the right and left sides are withdrawn and withdrawn in synchronization with the change in the interval of the crawler type traveling device 1.

As shown in FIGS. 2 and 3, the engine 10
The radiator cooling fan 11 driven horizontally by the engine power is installed in the upper side of the engine 10 inside the engine bonnet 6, and is formed in the center of the upper surface of the engine bonnet 6 in the left-right direction. Recess 12
The driver's seat 7 is placed inside the engine hood 6
Upward convex portions 1 located on both left and right sides of the concave portion 12 in
Of the 3a and 13b, the upper part of the radiator 14 is placed in the inner space Sa of the right convex portion 13a, and the upper part of the battery 15, which is one of engine accessories, is placed in the inner space Sb of the left convex portion 13b. I am doing it.

The engine bonnet 6 has a fixed front bonnet portion 6a and a rear bonnet portion 6b which is hingedly connected to the upper end of the bonnet portion 6a so as to swing upward.
The driver's seat 7 is attached to the front bonnet portion 6a so as to be tilted forward so that the driver's seat 7 is tilted forward and lifted to open the rear bonnet portion 6b when inspecting the engine room. There is. Further, an intake port 16 is formed on the left side surface of the rear bonnet portion 6b, and an exhaust port 17 is formed on the right side surface of the rear bonnet part 6b. The outside air is taken into the engine room from the intake port 16 to cool the radiator 14 and then cooled. The exhaust air is configured to be discharged from the exhaust port 17 to the outside of the machine.

[Other Embodiments] Instead of the battery, an air cleaner, a muffler, or the like may be placed in the one convex portion 13b of the engine bonnet 6, and the battery, the air cleaner, the muffler, and the like may be installed in the engine accessory device. Collectively referred to as 15. The recess 12 into which the driver's seat 7 is inserted and arranged may be formed in the middle portion of the engine bonnet 6 in the left-right direction over the entire length of the hood front and rear.

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

[Brief description of drawings]

1] Overall side view of backhoe

[Fig. 2] Overall plan view of backhoe

[Fig. 3] Vertical rear view of the drive section

[Explanation of symbols]

 6 Engine Bonnet 7 Driver Seat 10 Engine 11 Cooling Fan 12 Recess 13a Convex 13b Convex 14 Radiator 15 Engine Accessories Sa Internal Space Sb Internal Space

Claims (1)

[Claims] 1. A backhoe in which a driver's seat (7) is arranged above an engine bonnet (6), and a water-cooled engine (10) is horizontally installed inside the engine bonnet (6). ) A recess (12) is formed in the middle of the upper surface in the left-right direction, and the driver's seat (7) is placed in the recess (12), and an upward protrusion (13a) located on the left and right of the recess (12). , 13b) of the radiator (1) in the inner space (Sa) of one convex portion (13a).
A backhoe in which the engine accessory (15) is placed in the upper space of 4) and in the inner space (Sb) of the other convex portion (13b).