JP4248373B2 - Cab manufacturing method - Google Patents

Description

The present invention relates to a method for manufacturing a cab having a box-shaped cab body.

  An opening having an openable / closable lid is formed on the outer surface of the cab mounted on a part of the airframe, and a storage space for electrical components is provided inside the cab of the opening. There is a construction machine in which an electrical component mounting base (hereinafter, this electrical component mounting base is referred to as a “support panel”) and an electrical component is mounted on the support panel (see, for example, Patent Document 1).

On the other hand, when it is difficult to secure a storage space for electrical components inside the cab, as shown in FIGS. 8 and 9, a space 3 necessary for maintenance of the intake filter 2 is provided behind the cab 1. Thus, a support panel 5 is erected on the body frame 4, and a plurality of electrical components 6 and a cleaning liquid tank 7 containing window cleaning liquid supplied to the wiper are attached to the support panel 5.
JP 2002-167800 A (page 3, FIG. 4)

The conventional work machine in which the electrical component 6 and the cleaning liquid tank 7 are installed on the support panel 5 installed independently of the cab 1 inside or outside of the cab 1 has a different support panel 5 for each model, and the electrical component 6 The layout of the cab 1, etc. is also different, and the electrical wiring on the cab 1 side corresponding to these electrical components 6 is also different for each model, making it difficult to share the cab 1 and making cab 1 difficult to maintain. Since there is a support panel 5 because it is an obstacle to improving the wiring workability of cables and wires, the cost is increased and the effective space on the fuselage frame 4 is narrowed, making it difficult to cope with an increase in the size of the cooling package. There's a problem. There is a similar problem with the piping for supplying the cleaning liquid tank 7 and the window cleaning liquid to the wiper.

The present invention has been made in view of these points, and an object of the present invention is to provide a method of manufacturing a cab capable of integrating electrical components , electrical wiring thereof, a cleaning liquid tank, and cleaning liquid piping thereof .

In the cab production line for assembling a box-shaped cab body, the present invention provides a cleaning liquid to a cleaning plate of an electrical component and a wiper cleaning liquid nozzle provided at least on the front window side of the cab body on the rear side plate portion forming the cab body. A cleaning liquid tank to be supplied is directly attached to each of the cab production line, and an electrical wiring connected to the electrical component is wired to the cab body, and the cleaning liquid for the wiper from the cleaning liquid tank is connected to the cab production line. In this cab manufacturing method, a cleaning liquid pipe is disposed in the cab body across the nozzle, and a discharge port of a cleaning liquid pump that sucks the cleaning liquid from the cleaning liquid tank is connected to the cleaning liquid nozzle .

According to the present invention, by directly attaching electrical components to the rear plate of the cab body on the cab production line , electrical components that can be systematically integrated into the cab body can be sub-assembled, and on the cab production line, The cab, including the electrical wiring connected to the electrical components, can be shared, and the cab can be easily shared, improving maintenance and wire connection workability, and the cab body on the cab production line By attaching the cleaning liquid tank that supplies the cleaning liquid to the cleaning liquid nozzle of the wiper provided at least on the front window side directly on the rear plate of the cab body, the wiper and the cleaning liquid tank that can be systematically integrated into the cab body can be sub-assembled. In addition, the cleaning liquid piping between them can be sub-assembled, and the electrical components for the cab body can be Beauty and the electrical wiring, possible assembly solution tank and the cleaning liquid piping efficiently easily. Furthermore, since the conventional support panel for mounting electrical components can be eliminated, the cost can be reduced and an effective space can be secured because the support panel is not necessary.

  Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS.

  FIG. 6 shows a hydraulic excavator as a work machine. An upper swing body 13 as a machine body is turnably provided on a lower traveling body 11 via a swing bearing portion 12, and a front part as a part of the upper swing body 13 is provided. A cab 14 is mounted on the one side, and a driver's seat, an operation lever, and the like are installed in the cab 14. Further, a working device 15 for excavation work is mounted on the other side of the front part of the upper swing body 13, and an engine and a hydraulic pressure driven by the engine are mounted on the rear part of the upper swing body 13. A power device such as a pump is mounted and covered with a power device cover 16.

  1 and 2 show a state in which the power unit cover 16 is removed, and the cab 14 is provided with an exhaust port 22 in a rear side plate portion 21 that forms a box-shaped cab main body 20. The air intake filter 23 is attached to the rear plate 21 on the side, and the relay plate, controller, fuse box, converter, alarm, etc. are connected to the rear plate 21 on the cab body 20 above and below the exhaust port 22. Product 24 is mounted directly on the cab production line. Further, a cleaning liquid tank 25 is directly attached to the rear plate portion 21 of the cab body 20 below the exhaust port 22 on the cab production line.

  FIG. 3 shows the inside of the cab 14, and a storage compartment 27 such as a resin lunch box blown into a hollow is disposed on the back of the operator seat 26, and a temperature control is provided below the storage compartment 27. An air conditioner unit 28 as a functioning air conditioner main body is disposed.

  As shown in FIG. 4, resin air-conditioning ducts 30 and 31 for guiding the air-conditioned air discharged from the air-conditioning unit 28 to the front side of the cab 14 are provided on one side of the operator seat 26 along the floor surface. As shown in FIG. 3, a resin wiper motor decorative cover (hereinafter simply referred to as “decorative cover”) is disposed on the front end of the air conditioning duct 31. 34) is connected.

  The decorative cover 34 is disposed at a corner between the front window 35 and the right window 36 in the cab 14, and includes a wiper motor and a link mechanism (both not shown) for driving a wiper 37 provided on the front window 35. Covering.

  The decorative cover 34 is integrally blow-molded with a duct portion 41 connected to the air-conditioning duct 31. As shown in FIG. 5, a wiper motor and a link mechanism are provided adjacent to the rear side of the duct portion 41. The wiper motor / link storage part 42 to be stored is integrally formed in a concave shape, and the mounting plate part 43 fixed to the member on the cab body 20 side is integrally formed at the edge of the wiper motor / link storage part 42. A monitor 44 is attached to the upper part of the wiper motor / link housing 42.

  As shown in FIGS. 1 and 2, the discharge port of a cleaning liquid pump (not shown) for sucking the cleaning liquid from the cleaning liquid tank 25 directly attached to the rear plate 21 of the cab body 20 is as shown in FIG. A cleaning liquid nozzle (not shown) provided at the base of the wiper 37 through the cleaning liquid piping 45 such as a hose disposed along the air conditioning ducts 30 and 31 and penetrating the frame of the front window 35. Communication).

  Further, along the arrangement of the armrest 51 and the operation lever 52 located on one side of the operator seat 26, an interior panel 53 is attached to the outside thereof. The interior panel 53 has a recess 54 formed so that the outer surface is recessed in a concave shape, and a switch mounting panel portion 55 having a plurality of switch mounting holes is integrally formed on the upper portion of the recess 54.

  Switch boxes 56, 57, and 58 are removably attached to the switch mounting holes of the switch mounting panel 55, respectively. These switch boxes 56, 57, and 58 are a standard switch, an attachment switch for attachment attached to the tip of the working device 15, an air conditioner switch, and the like.

  The electrical wiring 59 drawn out from these switch boxes 56, 57, 58 is wired to the rear part of the cab 14 along the recess 54 of the interior panel 53 so as to be loosened, and is connected to the rear side plate part 21 of the cab main body 20. Connected to the electrical component 24 and the like attached.

  As shown in FIG. 5, a cover plate 60 is attached to the outer surface of the interior panel 53, and switch boxes 56, 57, 58 and electric wiring provided in the recess 54 of the interior panel 53 by the cover plate 60. 59 is closed. Such a switch mounting structure is suitable for assembly on the cab production line.

  1 and 2 together with the air conditioning unit 28 and the air conditioning duct 31 when the cab 14 is assembled on the cab production line. As shown in FIG. 2, the cab body 20 is sub-assembled.

  That is, on the cab production line, the electrical equipment 24 can be systematically integrated into the cab body 20 by attaching the electrical equipment 24 directly to the rear plate portion 21 of the cab body 20 and incorporating the electrical wiring 59 into the cab body 20. And the electric wiring 59 is sub-assembled on the cab production line.

  Similarly, on the cab production line, a wiper 37 is provided at least on the front window 35 side of the cab body 20, and a cleaning liquid tank 25 is directly attached to the rear plate portion 21 of the cab body 20, and the cleaning liquid nozzle of the wiper 37 is provided from the cleaning liquid tank 25. As a result, the wiper 37 that can be systematically integrated into the cab 14, the cleaning liquid tank 25, and the cleaning liquid pipe 45 between them are sub-assembled on the cab production line.

  Next, the effect of this embodiment will be described.

  By directly attaching the electrical components 24 to the rear plate portion 21 of the cab body 20, the electrical components 24 that can be systematically integrated into the cab body 20 can be sub-assembled, and electrical wiring 59 connected to the electrical components 24, etc. The cab 14 can be shared, and the cab 14 can be easily shared, so that it is possible to improve the maintainability and the workability of wire connection.

  Furthermore, since the conventional support panel 5 (see FIGS. 8 and 9) erected on the body frame 4 is eliminated, the cost can be reduced correspondingly, and the top or upper turning body as shown in FIG. An effective space S can be secured on 13.

  By securing this effective space S, as shown in FIG. 7A, the size of the cooling package 63 such as a radiator and an oil cooler disposed on the other side of the engine 62 having the pump unit 61 on one side is increased. By increasing the size of the cooling package 63, it is possible to reduce noise and exhaust gas. FIG. 7B shows the arrangement of the conventional cooling package 8. Since the electrical components 6 and the like are installed on the support panel 5 erected on the airframe frame 4, the effective space on the airframe frame 4 is small and the cooling is performed. There are restrictions when the package 8 is enlarged.

  In addition, the wiper 37 is provided at least on the front window 35 side of the cab body 20 and the cleaning liquid tank 25 is directly attached to the rear plate portion 21, so that the wiper 37 and the cleaning liquid tank 25 that can be systematically integrated into the cab body 20 are sub-assembled. Can be

  Furthermore, it is possible to efficiently and easily assemble the electrical component 24 and its electrical wiring 59, the cleaning liquid tank 25 and its cleaning liquid pipe 45 to the cab body 20 on the cab production line.

It is the perspective view which looked at one embodiment of the cab in the work machine concerning the present invention from the back side. It is a side view of a cab same as the above. It is the perspective view which looked at the inside of a cab same as the above from the rear side. It is the perspective view which looked at the inside of a cab same as the above from the front side. It is the perspective view which looked at the inside of a cab same as the above. It is a side view which shows the hydraulic shovel as a working machine. (A) is a top view which shows arrangement | positioning of the cooling package in the working machine which concerns on this invention, (b) is a top view which shows arrangement | positioning of the conventional cooling package. It is the perspective view which looked at the airframe in the conventional hydraulic excavator from the back side. It is a side view of a conventional airframe same as the above.

Explanation of symbols

13 Upper revolving body as the aircraft
14 cab
20 Cab body
21 Rear plate
24 electrical components
25 Cleaning liquid tank
35 Front window
37 Wiper
45 Cleaning fluid piping
59 Electrical wiring

Claims (1)

On a cab production line for assembling a box-shaped cab body, a cleaning liquid tank that supplies cleaning liquid to a rear plate portion that forms the cab body and a cleaning liquid nozzle of a wiper provided at least on the front window side of the cab body And directly installed,
On the cab production line, wire the electrical wiring connected to the electrical component to the cab body,
On the cab production line, a cleaning liquid pipe is provided in the cab body from the cleaning liquid tank to the cleaning liquid nozzle of the wiper, and a discharge port of a cleaning liquid pump that sucks the cleaning liquid from the cleaning liquid tank is connected to the cleaning liquid nozzle. A method of manufacturing a cab characterized by the above.

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