JP2007296989A - Cab of working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cab of a working machine capable of omitting the affixing or the mounting of a seal material for a mating face between the cab and a floor part when attachably/detachably mounting the cab on the floor part, and capable of preventing ingress of rain into the cab. <P>SOLUTION: A cab (12) to be attachably/detachably mounted on a floor part (20) with a cab seat installed thereon has a skirt part (S) extending downward of a top face (F) of the floor part (20) along a peripheral edge of the floor part (20). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a cab of a work machine that is detachably mounted on a floor where a driver's seat is installed.

A general-purpose work machine such as a small wheel loader attaches a cab on the floor where a driver's seat is installed, so that the cab can be attached in a cold season. Instead of removing the cab, a sunshade canopy is attached, or the cab is appropriately attached or detached in accordance with the work form, so that various operations can be easily and comfortably performed efficiently. Furthermore, the manufacturer of the work machine can quickly and easily respond to a customer's request with or without a cab (see, for example, Patent Document 1).

The cab has an open bottom and is placed on a floor where a driver's seat, various devices, equipment, and the like are installed. A sealing material is affixed or attached to the mating surface of the cab and the floor so that rainwater or the like does not enter the cab.
JP-A-2005-59658

The cab of the conventional work machine in the form as described above has the following problems to be solved.

In other words, sticking of the sealing material for preventing rainwater or the like from entering the cab from the mating surface of the cab and the floor requires a work time and is a troublesome work. In addition, the elastic sealing material attached to the mating surfaces causes loosening of bolts or the like that fix the cab to the floor.

The present invention has been made in view of the above facts, and its technical problem is that when the cab is detachably attached to the floor portion, it is unnecessary to attach or attach a sealing material on the mating surface of the cab and the floor portion, and It is an object of the present invention to provide a cab for a work machine that can prevent rainwater from entering the cab.

In order to solve the above technical problem, according to the present invention, the cab that is detachably mounted on the floor portion on which the driver's seat is installed is located along the periphery of the floor portion rather than the upper surface of the floor portion. There is provided a cab for a work machine characterized by including a skirt portion extending downward.

Preferably, the skirt portion is formed integrally with a panel that forms the outer surface of the cab. The cab includes a frame that extends from the panel to the inside of the cab and is placed on the floor. The frame includes a bolt hole through which a bolt that attaches the cab to the floor is passed.

The skirt portion is continuously provided at least on the left side, front side, and right side of the cab.

The cab of the work machine configured according to the present invention includes a skirt portion that extends downward from the upper surface of the floor portion along the periphery of the floor portion. Therefore, since the mating surface of the cab and the floor is not exposed to the outside by the skirt, it is possible to prevent rainwater from entering the cab, and when the cab is attached to the floor, the sealing material for the mating surface of the cab and the floor It is possible to eliminate the need for attachment or attachment.

Hereinafter, a cab of a work machine configured according to the present invention will be described in more detail with reference to the accompanying drawings illustrating a preferred embodiment of a wheel loader that is a typical work machine.

This will be described with reference to FIG. The wheel loader indicated by the number 2 includes a front vehicle body 8 having left and right front wheels 4 and 4 and a work device 6, and left and right rear wheels 10 and 10, a cab 12, and a rear vehicle body 16 having an engine compartment 14. ing. The front vehicle body 8 and the rear vehicle body 16 are connected so as to freely bend around the axis 3.

A description will be given with reference to FIG. 4 that is a perspective view of the rear vehicle body 16 in a state where the cab 12 is not attached together with FIG. A platform 20, which is a floor portion on which the driver's seat 18 and the cab 12 are placed, is formed on the front vehicle body 8 side (the front side in FIG. 4) of the rear vehicle body 16. The driver's seat 18 is installed on the center rear side in the left-right width direction of the platform 20. An engine compartment 14 is provided behind the driver's seat 18. The cab 12 is detachably mounted on the platform 20.

The platform 20 is provided with a seat installation portion 22 that is raised to a level where the driver's seat 18 is attached, and a rectangular floor surface portion 24 that extends forward of the seat installation portion 22 and has inclined portions 24a and 24b on both sides of the front end side. Yes. There are a total of eight mounting holes 26 for mounting the cab 14, two each in the front-rear direction at the left and right ends of the seat installation portion 22, and two each along the left and right inclined portions 24 a, 24 b of the floor surface portion 24. Yes.

The cab 12 will be described with reference to FIG. 1 which is an external perspective view and FIG. The cab 12 has a bottom portion that is placed on the platform 20 that is slightly larger than the outer periphery of the platform 20, and has six side surfaces, a left side surface 12a, a front left inclined portion 12b, a front surface 12c, a front right inclined portion 12d, and a right side. A surface 12e, a rear surface 12f, and a ceiling surface 12g are provided. A boarding door 12h is provided on the left side surface 12a. Similarly, the right side surface 12e is provided with a door for getting in and out (not shown).

The cab 12 extends along the periphery of the platform 20, and more specifically, along the left and right and front portions of the floor surface portion 24 and the left and right periphery of the seat installation portion 24, and the skirt portion S extending below the upper surface F of the platform 20. It has. The skirt portion S is continuous from the portion of the left side surface 12a of the cab 12 to the right side surface 12e through the front left inclined portion 12b, the front surface 12c, and the front right inclined portion 12d.

This will be described with reference to FIG. 3 together with FIG. The cab 12 includes a frame body 28 placed on the upper surface F of the platform 20 on the inner surface of the panel P forming the left side surface 12a to the right side surface 12e. The frame body 28 is formed of a steel plate having a predetermined width, is integrally welded to the panel P forming the left side surface 12a to the right side surface 12e, and extends inward of the cab 12.

The skirt portion S is integrally formed by extending the panel P forming the left side surface 12a to the right side surface 12e of the cab 12 downward. The length L extending downward from the upper surface F of the platform 20 is large so that the mating surface M between the frame body 28 and the upper surface F is not exposed to the outside of the cab 12 and rainwater does not enter the cab 12. Is decided.

The frame body 28 is provided with bolt holes 32 through which bolts 30 for attaching the cab 12 to the platform 20 are passed in positions corresponding to the attachment holes 26 (eight pieces).

In this embodiment, the edge of the platform 20 is not formed between the rear surface 12f of the cab 12 and the engine compartment 14 due to the structure of the fuselage. Therefore, the skirt portion S is not provided and a sealing material (not shown) is provided. Is not attached). An edge portion of the platform 20 may be formed on the rear surface 12f and the skirt portion S may be provided.

In order to attach the cab 12 configured as described above to the platform 20 as a floor, the cab 12 is placed on the platform 20, the frame body 28 is placed on the upper surface F of the edge of the platform 20, and the bolt holes 32 of the frame body 28 are mounted. A bolt 30 is passed through and fixed to the platform 20. When removing the cab 12, the reverse procedure may be performed.

The effect of the cab 12 of the working machine as described above will be described.

The cab 12 of the work machine configured according to the present invention includes a skirt portion S that extends below the upper surface F of the platform 20 along the periphery of the platform 20 that is a floor portion. Accordingly, the mating surface M between the cab 12 and the platform 20 is not exposed outward by the skirt portion S, so that intrusion of rainwater into the cab 12 is prevented and the cab 12 and the platform when the cab 12 is attached to the platform 20 are prevented. The sticking or attachment of the sealing material on the 20 mating surfaces can be eliminated.

Since the skirt portion S is integrally formed with the panel P that forms the outer surface of the cab 12, it is possible to reliably prevent rainwater from entering the cab 12, and to improve the appearance and appearance of the work machine. .

The cab 12 includes a frame body 28 that extends from the panel P forming the side surface of the cab 12 to the inside of the cab 12 and is placed on the platform 20 that is a floor portion. Therefore, the cab 20 is surely placed on the platform 20, and the floor mat (not shown) laid on the upper surface F of the platform 20 including the frame 28 is more reliably secured. The inside and outside can be shut off.

The frame body 28 is provided with bolt holes 32 through which bolts 30 for attaching the cab 12 to the platform 20 as a floor portion are passed. Therefore, the cab 12 can be easily attached to and detached from the platform 20 by attaching and detaching the bolts 30.

The skirt portion S is continuously provided from at least the left side surface 12a which is the left side of the cab 12 through the front side surface 12c which is the front side and the right side surface 12e which is the right side. Therefore, it is suitable for the cab 12 attached to the rear vehicle body 16 of the work machine such as the wheel loader 2 that is steered by bending.

The perspective view which looked at the cab of the working machine comprised according to this invention from the lower left side (arrow C direction of FIG. 5). The figure which looked at the bottom part of the cab of FIG. Sectional drawing which showed the typical example of the cab attaching part seeing in the arrow BB direction of FIG. The perspective view of the rear vehicle body of the wheel loader of a state where the cab was removed. The side view of the wheel loader with which the cab was attached.

Explanation of symbols

2: Wheel loader (work machine)
12: Cab 18: Driver's seat 20: Platform (floor)
28: Frame 30: Bolt 32: Bolt hole F: Upper surface M: Mating surface P: Panel S: Skirt

Claims (5)

A cab that is detachably mounted on the floor where the driver's seat is installed,
A skirt portion extending downward from the upper surface of the floor portion along the periphery of the floor portion;
A cab of a work machine characterized by that. The skirt is
It is formed integrally with the panel that forms the outer surface of the cab.
The cab for a work machine according to claim 1. The cab
A frame extending from the panel to the inside of the cab and placed on the floor,
The work machine cab according to claim 2, wherein: The frame is
It has a bolt hole for passing the bolt that attaches the cab to the floor,
The cab for a work machine according to claim 3. The skirt is
At least on the left side, front side, and right side of the cab.
The cab for a work machine according to any one of claims 1 to 4, wherein the cab is a work machine.

Images