JP2005239005A - Cab - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cab capable of setting a desired wind direction from a position of an operator's liking. <P>SOLUTION: A rear vent 25 to blow out air conditioning air conditioned in temperature is set opened upward at a rear part specified position in a cab body 14b, and an opening part 32 of one end of a flexible duct 31 having flexibility is inserted into this rear vent 25. The flexible duct 31 is arranged by a duct holder 35 to a front part in the cab body 14b along a rear part frame 33 and a roof part side frame 34 of the cab body 14b from this rear vent 25. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cab capable of easily changing the air-conditioning air blowing direction.

  Inside the cab mounted on a work machine such as a hydraulic excavator, an air conditioner unit is placed behind the operator seat, and the air-conditioning air (warm and cold air) adjusted in temperature by this air conditioner unit passes through the back duct and above the back To the foot through the foot duct, and to the front glass and the operator through the front duct. These back ducts, foot ducts, and front ducts are fixed ducts, and their air-conditioning air outlets are installed at fixed positions (see, for example, Patent Document 1).

These air-conditioning wind outlets are provided with louvers, and the wind direction can be adjusted within a limited range by the louvers (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 2003-291629 (page 6, FIG. 2) JP 2002-138513 A (page 3-4, FIG. 1)

  Thus, at present, conditioned air is blown out from the outlet arranged at a fixed position, but there is a limit in both the position and the angle in the adjustment of the wind direction by the louver of the outlet, and the operator's It is difficult to set the preferred wind direction from the preferred position.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a cab capable of setting a preferred wind direction from an operator's preferred position in blowing of conditioned air.

  According to the first aspect of the present invention, there is provided a cab body, an air-conditioning air outlet body that blows out air-conditioned air that is installed at a fixed position inside the cab body, and that has an opening at both ends thereof. This is a cab having a flexible duct having flexibility inserted therein and a duct holder for arranging the flexible duct along the cab body. An opening at one end of the flexible duct is inserted, and the flexible duct is disposed along the cab body by a duct holder, so that the opening at the other end of the flexible duct is set at a position desired by the operator. From this position, it is possible to set a preferred wind direction in blowing out the conditioned air.

  According to a second aspect of the present invention, the air-conditioning air outlet body in the cab according to the first aspect is a part of a plurality of rear vents opened upward at the rear part in the cab main body, and the flexible duct extends from the rear vent to the cab main body. The rear frame of the cab body and the roof of the cab body are arranged from a part of the rear vent by utilizing the surplus function of the plurality of rear vents, which is disposed along the rear frame and the roof side frame to the front of the cab body. Since the flexible duct is arranged along the side frame to the front of the cab body, it is possible to secure a conditioned air supply path that does not interfere with the operator even in the existing cab. It is possible to guide the wind to an arbitrary place and set the preferred wind direction from the preferred position of the operator.

  According to a third aspect of the present invention, the duct holder in the cab according to the first or second aspect is formed with a holder main body formed into a C shape by an elastic material and between the both ends of the holder main body smaller than the outer diameter of the flexible duct. The duct is attached to the holder body while expanding the duct attachment opening formed smaller than the outer diameter of the flexible duct against the elasticity of the holder body. Can be easily detached.

  According to the first aspect of the present invention, the opening at one end of the flexible duct is inserted into the air-conditioning air outlet body installed at a fixed position, and the flexible duct is disposed along the cab body by the duct holder. Thus, the opening at the other end of the flexible duct can be set at a position preferred by the operator, and a preferred wind direction can be set for blowing air-conditioned air from that position.

  According to the second aspect of the present invention, a flexible duct extends from a part of the rear vents to the front part in the cab body along the rear frame and the roof side frame of the cab body by effectively utilizing the surplus functions of the plurality of rear vents. The air conditioning air supply path that does not interfere with the operator can be secured even in the existing cab, and the air conditioning air can be guided to an arbitrary place by the flexible duct, and the preferred air direction can be set from the operator's favorite position. .

  According to the third aspect of the present invention, the duct attachment / detachment opening formed smaller than the outer diameter of the flexible duct is widened against the elasticity of the holder body, and the flexible duct can be easily formed with respect to the holder body. Can be detached.

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

  FIG. 3 shows a hydraulic excavator as a working machine. An upper swing body 13 is turnably provided on a lower traveling body 11 via a swing bearing portion 12, and a cab 14 is placed on one front side of the upper swing body 13. Is installed. 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.

  FIG. 1 shows a cab 14, and an air conditioner unit 21 located on the back side of an operator seat (not shown) is installed inside the cab body 14b. The air conditioner unit 21 incorporates an evaporator for cooling operation provided with an expansion valve, a radiator heat exchanger or heating heater for heating operation, and air blowing means. Behind the cab 14, a compressor, a condenser, and a receiver (these are not shown) that constitute an air conditioning system together with the air conditioning unit 21 are arranged.

  On the upper side of the air conditioner unit 21, a lunch box 22 is installed as a plastic container for blow molding in the hollow. On the seat side of the lunch box 22, a storage recess 23 with a lid is provided. A plurality of rear vents 24 and 25 serving as air-conditioning air outlet bodies for blowing air-conditioning air supplied from the air-conditioning unit 21 through a fixed duct (not shown) integrally formed on the back side of the lunch box 22 from the air-conditioning unit 21 Is open.

  In addition, a vertical duct portion 27 that receives the supply of conditioned air from the air conditioner unit 21 via the regular duct 26 is disposed at the corner between the front window and the right window in the cab 14, and this On the side surface of the duct portion 27, a front window defroster (not shown) and a right window defroster (not shown) that blows air-conditioning air to eliminate fogging and freezing of the window glass against the front window and the right window. Further, a face nozzle (not shown) for supplying conditioned air to the face of the operator is opened above the duct portion 27.

  As described above, a plurality of rear vents 24 and 25 serving as air-conditioning air outlets for blowing out the air-conditioned air whose temperature is adjusted open upward on the upper surface of the lunch box 22 installed at the rear fixed position in the cab body 14b. However, an opening 32 at one end of a flexible duct 31 having flexibility in a circular cross section used in a spot cooler or the like is inserted into a louver installation hole of a part of the rear vent 25 formed in a circle. The flexible duct 31 is disposed along the inner side of the rear frame 33 of the cab body 14b and the inner side of the roof side frame 34 by being fixed by a duct holder 35 attached to the frames 33 and 34, An air outlet 36 as an opening at the other end of the flexible duct 31 is set in an arbitrary direction at an arbitrary position.

  As shown in FIG. 2, the duct holder 35 for fixing the flexible duct 31 has a holder body 41 formed of an elastic material in a C shape, and a duct attaching / detaching opening 42 is formed between both ends of the holder body 41. 31 is formed to be smaller than the outer diameter of the duct 31, facing the duct attachment / detachment opening 42, and a duct insertion guide portion 43 is provided in an open shape at both ends of the holder main body 41. An attachment portion 44 for fixing 41 to a frame member or the like of the cab main body 14b is projected.

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

  Duct holders 35 are attached at predetermined intervals along the rear frame 33 and the roof side frame 34 in the cab body 14b, and a flexible duct 31 is fitted into these duct holders 35 through a duct attaching / detaching opening 42, and this flexible Hot / cold air is supplied to the inside of the flexible duct 31 by inserting the opening 32 at one end of the duct 31 into the louver installation holes of the rear vent 25 at the left and right ends opened at the top of the launch box 22 behind the operator. Then, hot and cold air is supplied to the front of the operator from the blowout port 36 at the other end through the flexible duct 31.

  At this time, the flexible duct 31 fixed to the cab body 14b side by the duct holder 35 is not loosened, and the air outlet 36 can be set at a place desired by the operator. On the other hand, when the flexible duct 31 is not necessary, it can be removed from the duct holder 35. At this time, the flexible duct 31 can be easily detached from the duct attaching / detaching opening 42.

  In this way, out of the plurality of rear vents 24, 25 opened at the upper surface of the lunch box 22 installed at the rear fixed position in the cab body 14b, in the louver installation holes of the circular rear vent 25 located at the left and right ends, An opening 32 at one end of a flexible duct 31 used in a spot cooler or the like is inserted, and the flexible duct 31 is disposed along the cab body 14b by a duct holder 35, so that the outlet of the flexible duct 31 is provided. 36 can be set to the operator's preferred position, and the preferred wind direction can be set from that position.

  In particular, by utilizing the surplus function of the plurality of rear vents 24, 25 that are opened upward, the front part in the cab body 14b extends from a part of the rear vents 25 along the rear frame 33 and the roof side frame 34 of the cab body 14b. Since the flexible duct 31 is arranged up to the part, it is possible to secure an air-conditioning air supply path that does not interfere with the operator even in the cab 14 of the existing structure. You can set your favorite wind direction from the position.

  At that time, the flexible duct 31 is easily detached from the holder body 41 while the duct attachment opening 42 formed smaller than the outer diameter of the flexible duct 31 is expanded against the elasticity of the holder body 41. it can.

1 is a perspective view showing an embodiment of a cab according to the present invention. It is a perspective view which shows the duct holder for fixing a flexible duct in a cab same as the above. It is a side view which shows a hydraulic shovel.

Explanation of symbols

14 cab
14b Cab body
25 Rear vent as an air-conditioning outlet
31 Flexible duct
33 Rear frame
34 Roof side frame
35 Duct holder
41 Holder body
42 Duct removal opening

Claims (3)

The cab body,
An air-conditioning air outlet body that blows out air-conditioned air that is installed at a fixed position inside the cab body and temperature-adjusted,
A flexible duct having flexibility in which one of openings at both ends is inserted into the air-conditioning air outlet body;
A cab comprising: a duct holder for arranging the flexible duct along the cab body. The air-conditioning air outlet body is a part of a plurality of rear vents opened upward at the rear part in the cab body,
The cab according to claim 1, wherein the flexible duct is disposed from the rear vent to the front part in the cab body along the rear frame and the roof part side frame of the cab body. The duct holder
A holder body formed into a C shape by an elastic material;
The cab according to claim 1 or 2, further comprising a duct attachment / detachment opening formed between both ends of the holder body smaller than an outer diameter of the flexible duct.

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