KR20120085184A - Duct disposition structure of working machinery - Google Patents

Abstract

PURPOSE: A duct layout structure of a working machine is provided to make a driver cap pleasantly for a driver. CONSTITUTION: A duct layout structure of a working machine comprises a working unit, a vehicle body, a driver cap(4), a driver seat(11), an air conditioner(13), a duct(28), and outlets(26, 31, 32). The air conditioner is installed in the driver cap. The duct guides the air generated by the air conditioner. A blowing port is contacted to a duct and blows the guided air.

Description

Duct layout structure of work machine {DUCT DISPOSITION STRUCTURE OF WORKING MACHINERY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct arrangement structure of a work machine, which is provided in a work machine such as a hydraulic excavator, and has a blower outlet for blowing wind generated by the air conditioning apparatus with respect to an operator sitting on a driving seat.

As a prior art of this kind of duct arrangement | structure, what is disclosed by patent document 1 is known. This prior art has an air conditioner arranged in a cab, a duct for guiding wind generated by the air conditioner, and a blower port connected to the duct to blow air to an operator sitting on a driving seat. The blower is provided with a blower for blowing wind toward the rear of the driving seat, a blower for blowing wind toward the front glass, a blower for blowing wind toward the operator's face or upper body, and a driving seat. It consists of a blower outlet that blows the wind along the bottom of the vehicle or near the foot of the operator sitting on the driving seat.

Japanese Patent Application Laid-open No. Hei 8-175156

In the above-mentioned prior art, a problem has arisen when the cold air generated by the air conditioning apparatus is guided by the duct, and the cold air is ejected toward the operator sitting on the driving seat. That is, in the prior art, cold wind is not supplied to the leg portion under the knee of the operator sitting on the driving seat, and it is easy to give the operator an unpleasant feeling during work in the heat. In connection with this, there exists a possibility of causing the fall of the efficiency of the operation performed by the working apparatus with which the said working machine is equipped.

SUMMARY OF THE INVENTION The present invention has been made in the above-described prior art, and an object thereof is to provide a duct arrangement structure of a work machine that can realize a comfortable air-conditioning for an operator sitting on a driving seat at the time of work in a hot place or the like. Is in.

In order to achieve this object, the present invention is provided in a work machine having a work device, a vehicle body on which the work device is installed, a cab installed on the vehicle body, and a driving seat disposed in the cab. Of a working machine having an air conditioner arranged, a duct for guiding the wind generated by the air conditioner, and a blower port connected to the duct, for ejecting the wind induced by the duct to an operator sitting on the driving seat. In the duct arrangement structure, the jet port is directed toward the upper body of the operator sitting on the driving seat, the upper body jet port for blowing wind induced by the duct, and a portion below the knee of the operator sitting on the driving seat. And it characterized in that it comprises a blowout port for the lower knee to eject the wind induced by the duct.

According to the present invention configured as described above, the wind generated by the air conditioning apparatus, for example, cold air is guided by a duct, and the cold air thus induced is blown toward the operator sitting on the driving seat from both the upper body outlet and the lower knee outlet. You can. Therefore, the operator sitting on the driving seat is supplied with cold air to the lower part of the knee together with the upper body. In this manner, the present invention can realize a comfortable air-conditioning for the operator sitting on the driving seat at the time of work in hot weather or the like.

Moreover, in this invention, in the said invention, the said upper-body ejection spout and the said knee lower spout are positions which deviate from the visual field limit assumed during the operation of the said operator who sat in the said driving seat, The said cab of the right front of the said driving seat It is arrange | positioned in the vicinity of inside right front corner part, It is characterized by the above-mentioned.

According to the present invention configured as described above, during the work performed by the work device of the work machine, the upper body ejection outlet and the lower knee ejection outlet do not enter the field of view of the operator sitting on the driving seat, thereby enabling smooth operation. have.

In addition, the present invention, in the above invention, the jet port comprises a facial jet port for ejecting the wind induced in the duct toward the face of the operator sitting on the driving seat, the right front is formed with the facial jet port A cover and an auxiliary cover which is continuously provided on the right front cover to form the upper body ejection outlet and the lower knee ejection outlet, and the right front cover and the auxiliary cover are disposed near the right front corner in the cab; And the auxiliary cover is located on the side close to the viewing limit, and the right front cover is located on the side far from the viewing limit.

According to the present invention configured as described above, the wind induced by the duct, for example, the cold wind, can be supplied to the face of the operator sitting on the driving seat. That is, the cold air guided by the duct can be supplied to the whole body of the operator sitting on the driving seat. In addition, since the right front cover provided with the face ejection outlet and the auxiliary cover formed with the upper body ejection outlet and the lower ejection outlet below the knee are disposed in the vicinity of the right front corner in the cab, the air conditioner is controlled to the right front of the driving seat. The duct for inducing the cold wind generated by the device is not exposed, thereby ensuring an excellent aesthetic appearance.

In addition, in the above invention, in the auxiliary cover, a first grill in which the upper body ejection spout is formed, a second grill disposed below the first grill and in which the spout for the lower knee is formed, These first and second grills guide the wind guided by the duct and house a cylindrical portion inserted into a hole formed in the side of the right front cover, and the first and second grilles and the The cylindrical part is provided integrally.

The present invention configured as described above has a first grill in which an upper body ejection spout is formed, a second grill in which a spout below the knee is formed, and a cylindrical portion inserted into the hole of the right front cover. The interior work at the time of arranging the upper body jet port and the lower knee jet port in the vicinity of the front corner can be performed relatively easily.

The present invention provides an upper body ejection outlet for generating a cold air guided by an duct, which ejects cold air directed by an duct toward an operator sitting on an operating seat, and an ejection outlet for upper body that ejects cold air toward an upper body of an operator sitting on an operating seat; It consists of a structure including the below-knee spout port which blows cold air toward the bottom of the knee of the operator who sat down. Thereby, cold wind can be supplied to the lower part of the knee which was not supplied conventionally with the upper body of the operator who sat on the driving seat. That is, in the case of work | work in the hot days etc. which are implemented by the work apparatus provided with the said work machine, the comfortable air conditioning with respect to the operator who sat down on the driving seat can be realized, and the efficiency of work | work at the time of hot days etc. is improved compared with the past. You can.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the hydraulic excavator used as an example of the working machine with which one Embodiment of the duct arrangement structure of this invention is equipped.
FIG. 2 is a side view schematically showing a cab provided in the hydraulic excavator shown in FIG. 1.
3 is a plan view schematically showing a cab provided in the hydraulic excavator shown in FIG. 1.
4 is a perspective view illustrating a main part of the duct arrangement structure according to the present embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the duct arrangement structure of the working machine which concerns on this invention is described based on drawing.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the hydraulic excavator used as an example of the working machine with which one Embodiment of the duct arrangement structure of this invention is equipped.

As shown in this figure, the hydraulic excavator comprises a traveling body 1 and a swinging body 2 arranged on the traveling body 1. The traveling body 1 and the revolving body 2 constitute a vehicle body of the hydraulic excavator. The revolving body 2 is provided with a work device 3 for carrying out excavation work and the like of earth and sand. The work device 3 includes a boom 3a that is rotatably installed in the swinging structure 2 in the up and down direction, an arm 3b that is rotatably installed in the up and down direction on the tip of the boom 3a, and A bucket 3c is provided at the tip of the arm 3b so as to be rotatable in the vertical direction. The cab 4 is arranged at the front side position of the swinging structure 2, and the counter weight 5 for securing the weight balance is arranged at the rear side position. Between the cab 4 and the counterweight 5 on the swinging structure 2, an engine compartment 6 in which an engine, a hydraulic pump, or the like is housed is arranged.

2 and 3 are diagrams schematically showing a cab provided in the hydraulic excavator shown in FIG. 1, FIG. 2 is a side view, and FIG. 3 is a plan view.

In the cab 4, a driving seat 11 on which the operator 10 sits is disposed, and operation levers 17 and 18 for operating the work device 3 are provided on both sides of the driving seat 11. Supporting consoles 19 and 20 are arranged. Moreover, on the floor in front of the driving seat 11, the traveling pedals 21 and 22 and the footrests 23 and 24 which drive the traveling body 1 are arrange | positioned.

The rear cover 12 is arrange | positioned in the cab 4 located in the back side of the driving seat 11, and the air conditioner 13 is accommodated in the downward position in this rear cover 12. As shown in FIG. On the upper surface of the rear cover 12, blow holes 14, 15, 16 are provided for blowing wind generated by the air conditioning apparatus 13, for example, cold air toward the ceiling direction of the cab 4, respectively.

As shown in FIG. 3, this embodiment is provided with the duct 28 connected to the air conditioning apparatus 13, and extended along the right corner part of the bottom of the cab 4, and is provided. In addition, as shown in FIG. 2, a blower outlet generated by the air conditioning apparatus 13 and spraying wind, for example, cold air, guided by the duct 28 to the operator 10 sitting on the driving seat 11. Equipped with.

As shown by the arrow 26a of FIG. 2, this jet port is a facial jet port for blowing cold air guided by the duct 28 toward the face 10a of the operator 10 sitting on the driving seat 11. 26). The facial jet port 26 is formed to be rotatable about a vertical axis, for example. When frost is attached to the front glass of the cab 4 during cold weather or the like, the face blower 26 is rotated to face the front glass of the cab 4 and the front glass is blown out by blowing hot air. Defrost can be removed. In other words, the facial jet port 26 also serves as a defroster.

In addition, in this embodiment, as another jet port connected to the duct 28, the cold wind guided by the duct 28 toward the upper half body 10b of the operator 10 which sat on the driving seat 11 is shown in FIG. As shown by the arrow 31a, the cold air guided by the duct 28 is directed toward the upper half jet port 31 to eject and toward the lower portion 10c of the operator 10 sitting on the driving seat 11. As shown by the arrow 32a of FIG. 2 and the area | region 32b of FIG. 3, the ejection opening 32 for lower knees to eject is provided.

As shown in FIGS. 2 and 3, the facial jet 26, the upper body jet 31, and the lower knee jet 32 are assumed during the operation of the operator 10 sitting on the driving seat 11. It is a position beyond the visual field limit, ie, the eye point 33, and is disposed near the right front corner 34 in the cab 4 on the right front of the driving seat 11.

In addition, as shown in FIG. 2, FIG. 3, this embodiment has the right front cover 25 provided with the upper surface 25, the monitor 27 which displays various work related information, etc. on the upper surface, It is provided in the right front cover 25 continuously, and is provided with the auxiliary cover 30 which forms the upper body blower outlet 31 and the lower-body blower outlet 32. These right front cover 25 and the auxiliary cover 30 are arrange | positioned in the vicinity of the right front corner part 34 in the cab 4, as shown in FIG. It is located on the side near the eye point 33, and the right front cover 25 is located on the side far from the eye point 33. As shown in FIG. In addition, as shown in FIG. 2, the height dimension of the auxiliary cover 30 is set to a dimension lower than the height dimension of the right front cover 25, for example.

In the auxiliary cover 30, as shown in FIG. 4, the upper grille ejection opening 31 is formed, and it is arrange | positioned below this 1st grill 38, and is blown out below a knee. The 2nd grille 42 in which 32 is formed, and these 1st grille 38 and the 2nd grille 42, guide | induce the cold air guide | induced by the above-mentioned duct 28, and at the same time, the right front cover ( The cylindrical part 43 inserted in the hole which is not shown in the side of the eye point 33 side of 25 is accommodated. The 1st grille 38, the 2nd grille 42, and the cylindrical part 43 are integrally provided.

As shown in FIG. 4, the first grill 38 is connected to the cylindrical portion 43, and is connected to the first grill case 35 having the upper half blower outlet 31 and to the first grill case 35. Among the first pins 36 and the first pins 36, which are held and arranged in the upper half-body jet port 31, are arranged in a plurality in the longitudinal direction and are rotatable in the vertical direction and the left and right directions through a link mechanism (not shown). It is fixed to a predetermined pin and has one 1st handle 37 which rotates the some 1st pin 36 to an up-down direction and the left-right direction.

Similarly, the 2nd grille 42 is also connected to the cylindrical part 43, and is hold | maintained by this 2nd grille case 39 and the 2nd grille case 39 which has the ejection opening 32 for lower knees, and is below the knees. The second fin 40, which is disposed in the blower outlet 32, is arranged in a plurality in the longitudinal direction and is rotatable in the up-down direction and the left-right direction through a link machine (not shown), and a predetermined one of these second pins 40. It is fixed and has one 2nd handle 41 which rotates the some 2nd pin 40 to an up-down direction and the left-right direction.

As shown in FIG. 4, the second grill case 39 of the second grill 42 has a dimension shorter than the length dimension of the first grill case 35 of the first grill 38, for example. The width dimension is larger than the width dimension of the first grill case 35. Thus, by setting the shape of the 1st grille 38 and the 2nd grille 42, the quantity of air blown off from the upper half jet nozzle 31 of the 1st grille 38, and the 2nd grille 42 of The amount of air blown out from the lower blower outlet 32 for knees is approximately the same.

In the present embodiment configured as described above, wind generated by the air conditioning apparatus 13, for example, cold air is guided by the duct 28, and is blown out of the face spout 26 on the upper surface of the right front cover 25. Cold air is supplied to the face 10a of the operator 10 sitting on the driving seat 11. In addition, as described above, the cold air guided by the duct 28, guided from the cylindrical portion 43 shown in FIG. 4 to the first grill 38, and blown off from the upper body blower outlet 31 is illustrated in FIG. 2. As indicated by the arrow 31a, it is supplied to the upper body 10b of the operator 10 sitting on the driving seat 11. In addition, as described above, the cold air guided by the duct 28, guided from the cylindrical portion 43 shown in FIG. 4 to the second grill 42, and blown off from the blower outlet 32 for the lower knee is illustrated in FIG. As shown by the arrow 32a of 2 and the area | region 32b of FIG. 3, it is supplied to the lower part 10c of the knee of the operator 10 which sat on the driving seat 11. As shown in FIG.

Therefore, the cold air generated by the air conditioning apparatus 13 is supplied to the operator 10 sitting on the driving seat 11 to the whole body of the upper body 10b including the face 10a and the lower part of the knee 10c. That is, this embodiment can realize the comfortable air conditioning with respect to the operator 10 who sat in the driving seat 11 at the time of the work | work in the hot days etc. which are performed by the work apparatus 3 of the said hydraulic excavator, When it is hot, work efficiency can be improved.

In addition, in this embodiment, the right front cover 25 in which the face ejection opening 26 was formed, and the auxiliary cover 30 in which the upper body ejection opening 31 and the lower ejection opening 32 are formed in the cab 4 are provided. It is arrange | positioned at the visual field limit assumed at the time of the operation of the operator 10 of the right front corner part 34, ie, the position deviating from the eye point 30. As shown in FIG. With this configuration, during the work performed by the working device 3 of the hydraulic excavator, the face ejection opening 26, the upper body ejection opening 31, and the lower knee ejection opening 32 are provided to the driving seat 11. It does not enter the visual field of the operator 10 who sat down, and smooth operation can be performed. This contributes to the improvement of work efficiency.

In addition, in this embodiment, the right front cover 25 in which the face ejection opening 26 is formed, and the auxiliary cover 30 in which the upper half ejection opening 31 and the lower injection outlet 32 are formed are the cab 4. In the point where it is continuously installed in the right front corner part 34 in the inside), the duct which guides the cold air produced | generated by the air conditioning apparatus 13 to the right front part of the driving seat 11 is not exposed, and ensures the outstanding aesthetics. can do.

Moreover, in this embodiment, the 1st grille 38 in which the upper body ejection opening 31 is formed in the auxiliary cover 30, the 2nd grille 42 in which the ejection opening 32 for lower knees is formed, and these The cylindrical part 43 connected to the 1st, 2nd grille 38 and 42 and connected to the duct 28 is provided integrally. Thereby, the interior work at the time of arrange | positioning the upper body jet nozzle 31 and the lower knee jet nozzle 32 in the right front corner part 34 of the cab 4 can be performed comparatively easily.

In the present embodiment, the operator 10 sitting on the driving seat 11 grips the first handle 37 of the first grill 38 so that the plurality of first pins 36 are in the vertical direction or left and right. Direction, and the operator sitting on the driving seat 11 by holding the second handle 41 of the second grill 42 and moving the plurality of second pins 40 in the vertical direction or the horizontal direction. 10) can adjust the direction of the cold air blown out as desired.

Moreover, since this embodiment sets the height dimension of the auxiliary cover 30 lower than the right front cover 25, the adverse effect on the visual field of the operator 10 who sat down on the driving seat 11 is more reliably. Can be prevented.

In addition, although this embodiment is equipped with the right front cover 25 which provided the face ejection opening 26 in consideration of being a hydraulic excavator, for example, in a working machine etc. different from a hydraulic excavator, a face ejection opening ( It is also possible to have a configuration in which only the auxiliary cover 30 having the upper half blower outlet 31 and the lower knee blower outlet 32 is provided without the right front cover 25 having the right side 26.

In addition, in the said embodiment, the length dimension of the 2nd grill case 39 of the 2nd grill 42 accommodated in the auxiliary cover 30 is the length dimension of the 1st grill case 35 of the 1st grill 38. Although it is set to be shorter than that, in the case where it is desired to increase the amount of air blown out from the lower blower outlet 32 for the knee, the length dimension of the second grill case 39 is, for example, the length dimension of the first grill case 35. Set it to the same length as. In addition, in the said embodiment, although the width dimension of the 1st grille case 35 of the 1st grille 38 is set smaller than the width dimension of the 2nd grille case 39 of the 2nd grille 42, What is necessary is just to set the width dimension of the 1st grill case 35 to a magnitude | size similar to the width dimension of the 2nd grill case 39, for example, when the air volume blown off from the blower outlet 31 is enlarged.

In addition, in the said embodiment, in consideration of the operation | work at the time of hot, etc., cold air is produced | generated by the air conditioning apparatus 13, and it is carried out from the facial blower outlet 26, the upper body blower outlet 31, and the knee lower blower outlet 32. Although cold air is blown out, in the case where work is performed in a cold place, the air conditioner 13 generates warm air, and the hot air outlet 26, the upper body air outlet 31, and the lower knee air outlet 32 Of course, the warm air may be emitted from the air.

1: traveling body
2: swinging structure
3: working device
4: Cab
10: operator
10a: face
10b: upper body
10c: lower part of the knee
11: driving seat
13: air conditioner
25: Right front cover
26: facial spout
28: duct
30: secondary cover
31: upper body outlet
32: spout for the lower knee
33: eye point (view limit)
34: right front corner
35: first grill case
36: first pin
37: first handle
38: first grill
39: second grill case
40: second pin
41: second handle
42: second grill
43: cylindrical part

Claims (4)

It is provided in the working machine which has a working apparatus, the vehicle body in which this working apparatus is installed, the cab provided on this vehicle body, and the driving seat arrange | positioned in this cab,
An air conditioner disposed in the cab, a duct for guiding wind generated by the air conditioner, and a blower port connected to the duct to eject the wind induced by the duct to an operator sitting on the driving seat. In the duct arrangement structure of the working machine,
The jet is directed by the duct toward the upper body of the operator seated on the driving seat, toward the upper body jet port for ejecting wind induced by the duct, and toward the lower part of the knee of the operator sitting on the driving seat. A duct arrangement structure of a working machine, characterized by including a jet for the lower part of the knee to blow off the wind. 2. The right front corner in the cab according to claim 1, wherein the upper body ejection spout and the lower knee ejection spout are out of a viewing limit assumed during the operation of the operator sitting on the driving seat, and the right front corner in the cab at the right front of the driving seat. It is arrange | positioned in the vicinity of the part, Duct arrangement structure of the working machine. The said blower outlet is a face blower which blows the wind guide | induced to the said duct toward the face of the said operator who sat in the said driving seat,
And a right front cover having the face ejection opening, and an auxiliary cover which is continuously provided to the right front cover to form the upper body ejection outlet and the lower knee ejection outlet, and the right front cover and the auxiliary cover in the cab. I locate it near the right front corner,
The auxiliary cover is located on the side close to the visual field limit, and the right front cover is located on the side far from the visual field limit. 4. The first grill according to claim 3, wherein the upper grille ejection opening is formed in the auxiliary cover, a second grill disposed below the first grille, and the ejection opening for the lower knee is formed; And a second grill, which guides the wind induced by the duct and at the same time receives a cylindrical portion inserted into a hole formed in the side of the right front cover,
The said 1st grill, the said 2nd grill, and the said cylindrical part were provided integrally, The duct arrangement structure of a working machine characterized by the above-mentioned.

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