JP2007245894A - Operating machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating machine in which an air-conditioner can be installed in a cab even when the working machine is miniaturized. <P>SOLUTION: An air-conditioner 34 capable of supplying temperature-conditioned air into a cab 16 is arranged close to a side face part 16s on a working device side in a forward part in the cab 16. The air-conditioner 34 is formed flat in the longitudinal direction, and an air-conditioner body (not shown) is covered by a resin-molded air-conditioner cover 35. A suction port 36 for sucking air in the cab, an upper air outlet 37 capable of blowing out air toward an upper part in the cab, and a lower outlet 38 capable of blowing out air toward a lower part in the cab are opened in the air-conditioner cover 35. A first side face part duct 44 and a second side face part duct 45 are arranged from the air-conditioner 34 along a side face part 16s on the working device side in the cab 16, a back side crossing duct 46 is arranged along a back face part 16r in the cab 16, and back face tower-shaped ducts 47, 48 are arranged along corner parts on one side and the other side of the back face in the cab 16 from one side part and the other side part of the back face crossing duct 46. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a work machine provided with an air conditioner.

The work machine is equipped with a power unit with an engine at the rear of the fuselage, a cab for forming a cab is installed at the front of the fuselage, and air conditioning that can blow temperature-controlled air into the cab. The device is installed. In this air conditioner, the main body portion is arranged on the rear side of the driver's seat installed in the cab, and a piping device for supplying wind from the rear air conditioner to the front side in the cab is installed (for example, (See Patent Documents 1, 2, and 3).
Japanese Patent Laid-Open No. 7-47835 (page 2-3, FIG. 1-2) Japanese Patent Laid-Open No. 5-221236 (2nd page, FIG. 1-2) JP 2004-299678 A (page 4-5, FIG. 2-3)

  As described above, the conventional air conditioner in the cab is located on the rear side of the driver's seat and is close to the engine mounted on the rear part of the fuselage, so there is a problem such as a large mutual heat effect and a decrease in cooling efficiency. is there. In particular, in a small machine, there is a small model in which an air conditioner cannot be installed in a cab because the engine and the air conditioner approach abnormally when the air conditioner is arranged behind the driver's seat.

  This invention is made | formed in view of such a point, Even if it is a case where it reduces in size, it aims at providing the working machine which can install an air conditioner in a cab.

  The invention according to claim 1 is mounted on the fuselage, a power unit having an engine mounted on the rear part of the fuselage, a cab for forming a cab installed on the fuselage, and one side of the cab. A work machine including a work device and an air conditioner that is disposed at a front portion of the cab and that can blow a temperature-adjusted wind into the cab.

  According to a second aspect of the present invention, the air conditioner in the work machine according to the first aspect includes an upper blow-out port capable of blowing wind at the upper part of the cab, and a lower blow-off port capable of blowing wind at the lower part of the cab. Is.

  According to a third aspect of the present invention, in the work machine according to the first or second aspect, the housing recess is provided in the upper surface of the air conditioner.

  According to a fourth aspect of the present invention, the air conditioner in the work machine according to any one of the first to third aspects is formed in a vertically flat shape, and is a front portion in the cab and on a side portion on the work device side. A work machine provided with a piping device that is arranged in close contact with each other and is arranged along a side surface portion and a back surface portion on the work device side in the cab to supply wind to different places in the cab.

  According to a fifth aspect of the present invention, there is provided a piping device in a work machine according to the fourth aspect, wherein the piping device is disposed in a transverse direction along the rear surface portion in the cab, and one side portion and the other side of the rear surface transverse duct. And a plurality of rear tower ducts having a rear outlet at the upper end, which are respectively raised from the section along the corners on one side and the other side in the cab.

  According to the first aspect of the present invention, the power unit having the engine is mounted on the rear part of the fuselage, the cab is installed on the fuselage, and the air conditioner is disposed in the front part of the cab. Since it is possible to prevent the cooling efficiency and the like from being lowered due to the influence of heat by being separated from the apparatus, the air conditioner can be installed in the cab even when the work machine is downsized.

  According to the second aspect of the present invention, wind can be efficiently supplied from the upper air outlet to the face of the operator and the wind can be efficiently supplied from the lower air outlet to the operator's feet.

  According to invention of Claim 3, the accommodation recessed part provided in the upper surface part of the air conditioner can be utilized as a container such as a cup holder.

  According to invention of Claim 4, the air conditioner formed in the vertical direction flat shape is arrange | positioned in close contact with the side part by the side of the working apparatus side in the front part in a cab, and from this air conditioner in a cab The air-conditioning structure in which the piping device is disposed along the side surface portion and the back surface portion on the work device side can be installed compactly in a small cab.

  According to the fifth aspect of the present invention, a plurality of rear tower shapes raised from one side portion and the other side portion of the rear transverse duct along the corners on the one side and the other side in the cab, respectively. The duct can be compactly installed in a small cab, and furthermore, wind can be efficiently supplied from the rear side of these rear tower ducts to the operator's neck streak from the left and right side rear portions.

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

  FIG. 2 shows a hydraulic excavator 11 as a work machine. The machine body 12 is configured such that an upper swing body 14 is turnably provided on a lower traveling body 13, and an engine is installed at the rear of the upper swing body 14. The cab 16 for forming the cab is installed on the upper swing body 14 from the front part to the power unit 15. A blade 19 is attached to the lower traveling body 13 via a push arm 18 that can be moved up and down by a lifting cylinder 17.

  A boarding port 22 that is opened and closed by a door 21 is provided on the left side surface of the cab 16, and a working device 23 is mounted on the right side of the cab 16 and on the front of the upper swing body 14.

  In the working device 23, a boom 26 that is rotated in the vertical direction by a boom cylinder 25 is pivotally supported on the bracket portion 24 of the upper swing body 14, and is rotated by an arm cylinder 27 at a tip portion of the boom 26. An arm 28 is pivotally supported, and a bucket 30 that is rotated by a bucket cylinder 29 is pivotally supported at the tip of the arm 28.

  As shown in FIG. 1, a driver's seat 31 is disposed in the cab 16, and work operation lever devices 32 for operating the work device 23 are provided on both the left and right sides of the driver's seat 31. A traveling operation lever device 33 is provided on the front side of 31.

  An air conditioner 34 capable of blowing the temperature-adjusted or humidity-adjusted air inside the cab 16 is disposed in close contact with the side portion 16s on the working device 23 side, which is the front portion in the cab 16.

  The air conditioner 34 is formed in a vertically flat shape, and an air conditioner body (not shown) including a cooling evaporator or a heater for heating together with a blower fan is covered with a resin-formed air conditioner cover 35. It is a thing.

  The air conditioner cover 35 includes a suction port 36 for sucking air in the cab, an upper air outlet 37 that can blow air into the upper part of the cab, a lower air outlet 38 that can blow air into the lower part of the cab, and an upper side of the cover A rear outlet (not shown) is opened, and a storage recess 39 for storing a beverage container or the like is provided on the upper surface of the air conditioner cover 35.

  The upper air outlet 37 supplies wind to the face of the operator sitting in the driver's seat 31, and the lower air outlet 38 supplies air to the operator's feet and the like. Since the movable louvers 41 and 42 for adjusting the direction of the wind are installed at the lower outlet 38, it is possible to blow the wind on the windshield of the front window of the cab as a windshield defrost.

  An air-conditioning piping device 43 that supplies air to different locations in the cab is connected to a side surface on the side of the work device 23 in the cab 16 at an outlet (not shown) that is opened at the rear upper side of the cover of the air-conditioning device 34. Arranged along the part 16s and the back part 16r.

  As shown in FIG. 3, the piping device 43 includes a resin molded first side surface duct 44 and a second side surface duct 45 connected to an air conditioner 34, and the side surface portion on the working device 23 side in the cab 16. A resin-molded rear transverse duct 46 fixed along 16s and connected to the second side duct 45 is secured in the transverse direction along the rear part 16r in the cab 16, and one side of the rear transverse duct 46 is fixed. A plurality of resin-molded rear tower ducts 47 and 48 connected to the first and second sides are raised and fixed in a tower shape along the corners on one side and the other side of the back side in the cab 16, respectively. Yes.

  At the upper ends of these rear tower ducts 47 and 48, rear outlets 51 and 52 are provided as outlets for supplying wind to the operator from the rear, respectively. Movable louvers 53 and 54 for adjusting the direction of the wind are installed.

  Next, the function and effect of this embodiment will be described.

  The air conditioner 34 generates a temperature-adjusted wind, that is, a cold wind in the summer and a warm wind in the winter, and supplies the wind from the upper outlet 37 to the operator's face 31 of the operator seat 31 and the operator from the lower outlet 38. The wind is supplied to the feet.

  At the same time, the wind generated by the air conditioner 34 is moved to the rear of the driver's seat 31 by the first side duct 44, the second side duct 45, the rear transverse duct 46, and the left and right rear tower ducts 47, 48 of the piping device 43. Then, cold air is supplied from the left and right rear to the operator's neck and the like from the rear outlets 51 and 52 of the left and right rear tower ducts 47 and 48.

  Since the power unit 15 having an engine is mounted on the rear part of the upper swing body 14, the cab 16 is mounted on the upper swing body 14, and the air conditioner 34 is disposed in the front part of the cab 16. The air conditioner 34 is installed in the cab 16 even when the hydraulic excavator 11 is downsized as shown in FIG. it can.

  The air conditioner 34 can efficiently supply wind from the upper air outlet 37 to the operator's face and the like, and can efficiently supply air from the lower air outlet 38 to the operator's feet.

  A storage recess 39 provided on the upper surface of the air conditioner 34 can be used as a container such as a cup holder.

  The air conditioner 34 formed in a vertically flat shape is disposed in close contact with the side portion 16s on the front side of the cab 16 and on the work device 23 side, and from the air conditioner 34 to the work device 23 side in the cab 16 The air conditioning structure in which the piping device 43 is disposed along the side surface portion 16s and the back surface portion 16r can be compactly installed in the small cab 16.

  A plurality of rear tower ducts 47 and 48 that are raised from one side and the other side of the rear transverse duct 46 along the corners of the rear one side and the other side in the cab 16, respectively, It can be installed in the cab 16 in a compact manner, and furthermore, wind can be efficiently supplied from the rear side of the left and right parts to the neck lines of the operator from the rear outlets 51, 52 of these rear tower ducts 47, 48.

  In addition, although this invention is a thing suitable for a small model, it can be utilized also for the air conditioner in the cab of work machines other than a large model or a hydraulic shovel.

It is a perspective view which shows one Embodiment of the structure in the cab of the working machine which concerns on this invention. It is a perspective view which shows one Embodiment of a working machine same as the above. It is a perspective view which shows the cab air conditioning system of a working machine same as the above.

Explanation of symbols

12 Airframe
15 Power unit
16 cab
16s side
16r rear part
23 Work equipment
34 Air conditioner
37 Upper outlet
38 Lower outlet
39 Storage recess
43 Piping equipment
46 Back crossing duct
47, 48 Rear tower duct
51, 52 Rear outlet

Claims (5)

The aircraft,
A power unit having an engine mounted on the rear of the fuselage;
Cab for cab formation installed on the aircraft,
A working device mounted on the fuselage on one side of the cab;
A work machine comprising: an air conditioner disposed at a front portion of a cab and capable of blowing a temperature-adjusted wind into the cab. Air conditioner
An upper outlet that can blow wind into the upper part of the cab;
The work machine according to claim 1, further comprising: a lower air outlet capable of blowing air at a lower portion in the cab. The work machine according to claim 1, further comprising a storage recess provided in an upper surface portion of the air conditioner. The air conditioner is formed in a vertically flat shape, and is disposed in close contact with the side portion on the working device side at the front portion in the cab,
4. A piping device that is provided along a side surface portion and a rear surface portion on the working device side in the cab from the air conditioner and supplies air to different locations in the cab. The working machine described. Piping equipment
A rear transverse duct arranged transversely along the rear part in the cab;
A plurality of rear tower-shaped ducts that are raised from one side and the other side of the rear transverse duct along the corners of the rear one side and the other side in the cab and have a rear outlet at the upper end; The working machine according to claim 4, comprising:

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