CN105649132A

CN105649132A - Construction machinery

Info

Publication number: CN105649132A
Application number: CN201610081273.2A
Authority: CN
Inventors: 泉川岳哉; 林田俊也
Original assignee: Press Kogyo Co Ltd; Sumitomo SHI Construction Machinery Co Ltd
Current assignee: Press Kogyo Co Ltd; Sumitomo SHI Construction Machinery Co Ltd
Priority date: 2010-03-29
Filing date: 2011-03-29
Publication date: 2016-06-08
Anticipated expiration: 2031-03-29
Also published as: JPWO2011122644A1; CN103097156B; JP5615906B2; CN105649132B; WO2011122644A1; CN103097156A

Abstract

A construction machinery cab (14) is provided with an intake port (34) that opens underneath the floor of the construction machinery cab (14) and sucks in outside air. A filter (39) that filters outside air is housed in a filter housing unit. A lid member (33) for closing the opening of the filter housing unit is rotatably mounted to the side of the cab. An outside air introduction section (38), one end of which is connected to the intake port (34) and the other end of which is connected to the filter (39), is formed between a panel on the inside of the cab (37) and a panel on the outside of the cab (36). An intake route passes from the intake port (34) through the outside air introduction section (38), and through the filter (39) to an air-conditioning unit (41) of an air-conditioner. The lid member (33) can be opened when doing maintenance work on the filter (39), and prevents the filter (39) from being soaked with water when the opening of the filter housing unit is closed.

Description

Construction machinery

The divisional application of application that the application is application number is 201180016846.9, the applying date is on 03 29th, 2011, denomination of invention is " cab for construction machinery and construction machinery ".

Technical field

The present invention relates to a kind of construction machinery such as hydraulic actuated excavator and hydraulic crane, particularly relate to and be internally provided with the construction machinery operating room (driver's cabin) of air-conditioning device.

Background technology

Generally, the apparatus for work such as lower running body, the upper rotation that can be mounted on lower running body pivotally, the delver can being movably arranged in upper rotation are included as the hydraulic actuated excavator of construction machinery. The framework of upper rotation is provided with the driver's cabin constituting operating room.

The driver's cabin adopted on existing construction machinery includes the driving chamber with upper surface part, front surface part, rear face portion and left and right sides face. The side surface part of the side that the door of the stopping port of opening and closing operations person's boarding is arranged in the left and right sides face driving chamber. It is provided with air-conditioning device driving in chamber. Air-conditioning device is to driving the adjustment air supplying the temperature adjusting exogenous QI and humidity in chamber and generate.

Air-conditioning device has the exogenous QI introduction part for being taken into exogenous QI. Exogenous QI introduction part is arranged at the side frame side (referring for example to patent documentation 1) of slewing frame in the downside on the floor driving chamber. In the air-conditioning device with this structure, the pipe arrangement of pipe exogenous QI introduction part being connected with the pressure fan etc. of air-conditioning device is long. Additionally, in order to change the filter configured on the path of pipe, it is necessary to unloading various parts, the replacing operation of filter is cumbersome. That is, workability when assembling air-conditioning device is deteriorated. Additionally, also produce the unfavorable condition that workability when filter replacement etc. is safeguarded also declines.

In order to release above-mentioned unfavorable condition, propose in the side surface part of the side driving chamber of the stopping port being provided with operator, be provided with the air-conditioning device (referring for example to patent documentation 2) of exogenous QI introduction part in the downside of the side surface part driving chamber at the rear portion of stopping port. In this air-conditioning device, by open exogenous QI introduction part peristome can the filter etc. of readily replaceable air-conditioning device, and can easily carry out maintenance inspection. Additionally, due to the path of the pipe of exogenous QI introduction part is short, workability when therefore safeguarding also significantly improves.

Hereinafter, illustrate to be provided with the structure of existing air-conditioning device of exogenous QI introduction part in the side surface part driving chamber with Fig. 1 to Fig. 7.

Fig. 1 is the side view of existing driver's cabin of exogenous QI introduction part being provided with air-conditioning device at the sidepiece driving chamber. As it is shown in figure 1, the front side of the side the side driving chamber 102 constituting driver's cabin 101, it is provided with the stopping port for operator's boarding, stopping port is provided with door 103. On the downside of the rear portion of the side of the side driving chamber 102, it is provided with exogenous QI introduction part and the cover 104 for importing exogenous QI to air-conditioning device (not shown). Cover 104 is formed the multiple opening 104a for importing exogenous QI. Cover 104 can rotatably be installed by hinge 104b, and opening and closing opening 104.

Fig. 2 is the sectional view of the II-II line along Fig. 1. As in figure 2 it is shown, the surface pivots at the one side driving chamber 102 is provided with cover 104 freely. Exogenous QI imports to filter 106 from the opening 104a formed cover 104 via exogenous QI introduction part 105. The exogenous QI importing to filter 106 imports to air-conditioning unit 108 from filter 106 by exogenous QI ingress pipe 107. Further, air regulate after cleaning air from be configured at air-conditioning unit 108 rear portion pipe 109 air outlet 109a to drive chamber 102 indoor feeding. Air-conditioning unit 108 loads and is fixed on the floor 102a driving chamber 102.

Fig. 3 is the enlarged drawing representing the part being provided with the cover 104 shown in Fig. 2 in detail. As it is shown on figure 3, cover 104 can be rotatably mounted at drives the driver's cabin outer panel 110 fixed on the surface of chamber 102. At the rear portion (downstream) of cover 104, with the almost parallel extension of cover 104 be fixed with immersion and prevent with shield 111. That is, immersion prevents from being fixed on cover 104 with shield 111 with surrounding by driver's cabin outer panel 110 and driver's cabin interior plate 112. Further, being configured with filter 106 at the rear portion of the peristome of driver's cabin interior plate 112, the rear side of filter 106 is connected with air-conditioning unit 108 via exogenous QI ingress pipe 107.

By said structure, the suction pathway of exogenous QI becomes the path shown in arrow A of Fig. 3. That is, prevent from entering the exogenous QI introduction part 105 in the space between driver's cabin outer panel 110 and driver's cabin interior plate 112 with shield 111 from the immersion of detouring of the opening 104a of cover 104 exogenous QI imported. The exogenous QI entering exogenous QI introduction part 105 enters exogenous QI ingress pipe 107 by filter 106, and supplies to air-conditioning unit 108. Air-conditioning unit 108 carries out the air of air adjustment as shown in Figure 2 from the air outlet 109a of pipe 109 to the inside supply driving chamber 102.

Fig. 4 is the cover 104 shown in Fig. 3, soak the axonometric chart prevented with shield 111 and filter 106. In the diagram, indicate that exogenous QI and the water that causes because of carwash and rainfall are from the opening 104a of cover 104 path internally imported. As shown in Figure 4, prevent from guiding to filter 106 with shield 111 via the immersion of detouring as shown by arrow B of the opening 104a of cover 104 exogenous QI sucked. On the other hand, the water caused because of carwash and rainfall strikes immersion as shown by arrow C and prevents from becoming water droplet P with shield 111. Water droplet P prevents from falling downwards with shield 111 along immersion. Thus, it is prevented that the water caused because of carwash and rainfall imports to filter 106 and filter 106 soaks.

Fig. 5 is the side view of other existing driver's cabins of exogenous QI introduction part being provided with air-conditioning device at the sidepiece driving chamber. As it is shown in figure 5, the front side of the side the side driving chamber 102 constituting driver's cabin 101, it is provided with the stopping port for operator's boarding, at stopping port, door 103 is rotatably installed.On the downside of the rear portion of the side of the side driving chamber 102, it is provided with the cover 121 for importing exogenous QI to air-conditioning device (not shown). Cover 121 is formed the multiple opening 121a for importing exogenous QI. Opening 121a forms the left part at cover 121, is formed without opening in right part. It is provided with in the end of cover 121 for cover 121 being supported for the hinge 121b that can rotate. It is configured with filter 106 at the rear portion of the right part of cover 121.

Fig. 6 is the sectional view of the V-V line along Fig. 5. As shown in Figure 6, on the surface of the side driving chamber 102, by hinge 121b, secund side (left side of figure) is rotatably installed and is arranged with the cover 121 of opening 121a. At the rear portion of the right part not having aligned openings 121a of cover 121, it is configured with filter 106 via exogenous QI introduction part 123. The driver's cabin interior plate 122 of composition exogenous QI introduction part 123 becomes flat shape along the part being provided with opening 121a with extending. Filter 106 is connected with air-conditioning unit 108 via exogenous QI ingress pipe 107. Further, since identical with the structure shown in Fig. 2 so not illustrating, but it being extended with pipe from air-conditioning unit 108, the air of the cleaning after air adjustment is sent into from the air outlet of pipe to the inside driving chamber 102.

Fig. 7 is the axonometric chart of the cover 121 shown in Fig. 6, driver's cabin interior plate 122 and filter 106. In the figure 7, indicate that exogenous QI and the water that causes because of carwash and rainfall are from the opening 121a of cover 121 path internally imported. As it is shown in fig. 7, the opening 121a of cover 121 offsets to the face side of a side and arranges, it is configured with filter 106 at the rear portion of the cover 121 of the part not having opening 121a of cover 121. Therefore, driver's cabin interior plate 122 is formed bendingly, guides exogenous QI introduction part 123 with the part from the existence opening 121a of cover 121 to filter 106.

By this structure, from the opening 121a of cover 121 exogenous QI imported as shown by arrow D, guided to filter 106 by the exogenous QI introduction part 123 surrounded by driver's cabin interior plate 122. On the other hand, the water caused because of carwash and rainfall clashes into driver's cabin interior plate 122 as shown by arrow E and becomes water droplet P, and water droplet P falls downwards along driver's cabin interior plate 122. Thus, it is prevented that the water caused because of carwash and rainfall imports to filter 106 and filter 106 soaks.

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 4-27618 publication

Patent documentation 2: Japanese Unexamined Patent Publication 2006-57245 publication

Summary of the invention

The problem that invention to solve

In cab for construction machinery disclosed in above-mentioned patent documentation 1, the side frame side of the slewing frame that the exogenous QI introduction part for importing exogenous QI to air-conditioning device is arranged under base plate. In the case of that construction, by the length of the pipe that the pressure fan etc. of exogenous QI introduction part with air-conditioning device is connected, the replacing operation of filter is complicated. Additionally, workability when assembling air-conditioning device is deteriorated, workability when safeguarding also reduces.

Therefore, in order to release this unfavorable condition, in the cab for construction machinery disclosed in patent documentation 2, in the side surface part of the side driving chamber being provided with operator's stopping port, the position of the rear side of stopping port is provided with exogenous QI introduction part. But, in the case of that construction, in order to be taken into the air of cleaning from exogenous QI to the pressure fan etc. of air-conditioning device, it is necessary to the downstream in the dead astern of gas introduction part arranges filter outside. Furthermore, it is necessary to be arranged to maintenance, check the inspection peristome of filter and for the inspection lid etc. from the outside opening and closing inspection peristome of driver's cabin. Therefore, the number of components of air-conditioning device increases, the cost increase of result air-conditioning device.

In the existing air-conditioning device shown in above-mentioned Fig. 1 to Fig. 4, it is being provided with the opening 104a that exogenous QI imports, so there is the probability that filter 106 soaks due to the water that causes because of carwash and rainfall being used for changing on the cover 104 safeguarded of the filter 106 filtering exogenous QI.Therefore, the situation in order to prevent this filter 106 from soaking, it is necessary to install immersion and prevent with shield 111. Therefore, the structure of air-conditioning device entirety complicates, the cost increase of air-conditioning device.

Additionally, in the existing air-conditioning device shown in above-mentioned Fig. 5 to Fig. 7, be used for changing the configurating filtered device 106 in downstream of the side being not provided with opening 121a of the maintenance cover 121 of filter 106, it is prevented that filter 106 soaks. That is, on cover 121, the secund side, position of opening 121a and configure, it does not have the side of opening 121a is set to blind plate. Further, the configurating filtered device 106 at the rear portion of the side not having opening 121a, it is prevented that filter 106 soaks. Therefore, it is necessary to increase the region (area) of the blind plate not having opening 121a of cover 121, driver's cabin interior plate 122 is constituted significantly along cover 121 entirety, therefore air-conditioning larger-scale unit, cost increase.

Therefore, it is desirable to exploitation can easily be replaced the cab for construction machinery that filter etc. is safeguarded and filter will not soak due to the water that causes because of carwash and rainfall.

Technical teaching for solving the problem was

Other embodiments according to the present invention, it is provided that a kind of construction machinery, the side face at the driver's cabin of operator's entrance has: boarding door, the stopping port of this operator's boarding of opening and closing, inspection cover, the filter inspection opening of opening and closing air-conditioning device, this filter inspection opening is arranged on the position leaning on rear view of vehicle side than this stopping port, and lock assembly, ground this inspection cover of locking can be released in closed position, and, above-mentioned boarding door and above-mentioned inspection cover can be rotatably mounted at above-mentioned side face via the hinge as rotating fulcrum, above-mentioned construction machinery is characterised by, the above-mentioned hinge of above-mentioned inspection cover side is configured in the front of above-mentioned inspection cover, and the lateral rear view of vehicle in top making the rotating fulcrum axle of this hinge rolls and is tiltedly arranged on above-mentioned driver's cabin, so that above-mentioned inspection cover is closed by conducting oneself with dignity when above-mentioned boarding door is with the interference of above-mentioned inspection cover, possesses spring members, above-mentioned inspection cover is exerted a force by this spring members to opening direction, above-mentioned inspection cover is thus made to keep balance at open position, by the force of this spring members, above-mentioned inspection cover rotates with the above-mentioned rotating fulcrum axle of above-mentioned hinge obliquely upward for fulcrum.

Invention effect

According to an embodiment of the invention, suck exogenous QI from the air entry the base plate of driver's cabin and import to filter, stop the water caused because of carwash and rainfall internally to be invaded by cover set on the side of driver's cabin. Thus, it is prevented that water passes through air-breathing stream, it is prevented that filter soaks. Additionally, by opening cover set on the side of driver's cabin, it is possible to easily it is filtered the upkeep operation of device.

Accompanying drawing explanation

Fig. 1 is the side view of existing driver's cabin of exogenous QI introduction part being provided with air-conditioning device at the sidepiece driving chamber.

Fig. 2 is the sectional view of the II-II line along Fig. 1.

Fig. 3 indicates that the enlarged drawing of the part being provided with the cover shown in Fig. 2.

Fig. 4 is the cover shown in Fig. 3, soak the axonometric chart prevented with shield and filter.

Fig. 5 is the side view of other existing driver's cabins of exogenous QI introduction part being provided with air-conditioning device at the sidepiece driving chamber.

Fig. 6 is the sectional view of the V-V line along Fig. 5.

Fig. 7 is the axonometric chart of the cover shown in Fig. 6, driver's cabin interior plate and filter.

Fig. 8 is the side view of the construction machinery of an embodiment of the invention and hydraulic actuated excavator.

Fig. 9 indicates that the figure of the driver's cabin of the hydraulic actuated excavator shown in Fig. 8.

Figure 10 is the side view of driver's cabin of exogenous QI introduction part being arranged with air-conditioning device at the base plate driving chamber.

Figure 11 observes the axonometric chart driving chamber from bottom.

Figure 12 is the sectional view of the XII-XII line along Figure 10.

Figure 13 is the enlarged drawing of the periphery representing cover in detail.

Figure 14 is the axonometric chart of the cover shown in Figure 13 and filter.

Figure 15 indicates that the sectional view of the driver's cabin of the position relationship between the door of boarding and the lid checked.

Figure 16 is the side view of the hydraulic actuated excavator of the driver's cabin of the interference between the door having and eliminating boarding and the lid checked.

Figure 17 indicates that the top view of the inside of driver's cabin.

Figure 18 is the enlarged side view of the driver's cabin shown in Figure 16.

Figure 19 is the sectional view of the XIX-XIX line along Figure 18.

Figure 20 is the sectional view of the lid of the inspection shown in Figure 18.

Figure 21 indicates that the side view of a part for a sidepiece of the driver's cabin being provided with lid by lid hinge.

Figure 22 is the sectional view of a part for a sidepiece of the driver's cabin being provided with lid by lid hinge.

Detailed description of the invention

Hereinafter, embodiments of the present invention are described with reference to the accompanying drawings.

Fig. 8 is the side view of the construction machinery of an embodiment of the invention and hydraulic actuated excavator. In fig. 8, upper rotation 13 is loaded into revolution freely via slew gear 12 by hydraulic actuated excavator 10 on lower running body 11. Upper rotation 13 backplate (framecover) 13a be provided above driver's cabin (operating room) 14 and canyon 18. In the central front portion of upper rotation 13, swing arm 15 is mounted to be rotated upwardly and downwardly by swing arm cylinder 15a. In the front end of swing arm 15, dipper 16 is mounted to be rotated upwardly and downwardly by dipper cylinder 16a. In the front end of dipper 16, scraper bowl 17 is mounted to be rotated by scraper bowl cylinder 17a.

In the canyon 18 of upper rotation 13, it is configured with battery, the hydraulic pump of implement driving, electromotor, various equipment and auxiliary equipment etc. Additionally, in the canyon 18 of upper rotation 13, accommodate the power unit of scraper bowl cylinder 17a for driving the swing arm cylinder 15a of swing arm 15, the dipper cylinder 16a of dipper 16 and scraper bowl 17. Lower running body 11 is equipped with the running motor 19 for driving crawler belt 20 to walk to make hydraulic actuated excavator 10.

Fig. 9 indicates that the figure of the driver's cabin 14 of the hydraulic actuated excavator 10 shown in Fig. 8. In fig .9, there is air-conditioning unit 21 in the surface configuration of the floor 14a of driver's cabin 14. Warm braw or cold wind from air-conditioning unit 21 pass through pipe 22a guiding underfooting air outlet 23, chest air outlet 24 and front frost removal 25, and the air of the cleaning after regulating as air from here is blown. That is, by from underfooting air outlet 23 and chest air outlet 24 blow out air, carrying out the air in driver's cabin 14 and regulate (freeze or heat). Additionally, blow out warm braw by the past frost removal 25, what the condensation of front window 29 caused fuzzy is removed.

Figure 10 is the side view of driver's cabin of the embodiment driving the exogenous QI introduction part that the base plate of chamber is arranged with air-conditioning device. As shown in Figure 10, in the front side of the side of the side driving chamber 31 constituting driver's cabin 14, it is provided with the stopping port for operator's boarding, and door 32 is rotatably installed.On the downside of the rear portion of the side of the side driving chamber 31, it is provided with the cover 33 of the maintenances such as filter in order to be replaced air-conditioning device and opening and closing. Cover 33 is not provided with opening, becomes blind plate. Cover 33 is supported for can rotate by hinge 33a. Air entry 34 for being taken into from exogenous QI to air-conditioning device is arranged under the base plate driving chamber 31.

Figure 11 observes the axonometric chart driving chamber 31 from bottom. As shown in figure 11, the part on the floor 35 near cover 33 place driving chamber 31, the gap between driver's cabin outer panel 36 and driver's cabin interior plate 37 is formed as being used for importing the air entry 34 of exogenous QI. It addition, the end of the side at cover 33, for the open-close lid parts 33 when safeguarding, the hinge 33a that can be supported rotationally by cover 33 is installed.

Figure 12 is the sectional view of the XII-XII line along Figure 10. As shown in figure 12, on the surface of the one side driving chamber 31, opening and closing is provided with cover 33 freely. It is internally formed the exogenous QI introduction part 38 being connected with air entry 34 at cover 33. Additionally, the downstream of gas introduction part 38 is provided with filter 39 outside. Filter 39 is connected with air-conditioning unit 41 via exogenous QI ingress pipe 40. The air of the cleaning after regulating from the air outlet 42a of the pipe 42 being arranged in air-conditioning unit 41 rear portion to the inside feeding air driving chamber 31. Air-conditioning unit 41 loads and is fixed on the floor 35 driving chamber 31.

Figure 13 is the enlarged drawing of the periphery representing cover 33 in detail. Cover 33 can be rotatably mounted to be driven on the driver's cabin outer panel 36 fixed on the surface of chamber 31. At the rear portion (downstream) of cover 33, it is formed with the exogenous QI introduction part 38 surrounded by driver's cabin outer panel 36 and driver's cabin interior plate 37. It is configured with filter 39 at the rear portion of the peristome of driver's cabin interior plate 37. The back side of filter 39 is connected with air-conditioning unit 41 via exogenous QI ingress pipe 40.

By above structure, the suction pathway of exogenous QI is the path shown in arrow F of Figure 13. That is, exogenous QI imports from the air entry 34 of the bottom on floor 35, is guided to filter 39 by the space (exogenous QI introduction part 38) between driver's cabin outer panel 36 and driver's cabin interior plate 37. It is supplied to air-conditioning unit 41 by exogenous QI ingress pipe 40 by the exogenous QI of filter 39. The air of air adjustment has been carried out as shown in figure 12 from the air outlet 42a of pipe 42 to the inside supply driving chamber 31 by air-conditioning unit 41. It addition, the suction pathway of the pipe of the upstream side of air entry 34 is formed straight near the slew gear 12 of driver's cabin 14 bottom shown in Fig. 8 (direct), the pipe of suction pathway shortens. Additionally, exogenous QI is directed into the bottom on floor 35 from the gap formed between backplate 13a and driver's cabin outer panel 36.

Figure 14 is the axonometric chart of the cover 33 shown in Figure 13 and filter 39. Indicate the path that the path importing exogenous QI from air entry 34 and the covered parts 33 of water caused because of carwash and rainfall block in fig. 14. The exogenous QI imported by the air entry 34 on floor 35 is guided to filter 39 by the exogenous QI introduction part 38 surrounded by driver's cabin outer panel 36 and driver's cabin interior plate 37 as shown by arrow G. On the other hand, the water caused because of carwash and rainfall clashes into cover 33 as shown by arrow H and becomes water droplet P, and water droplet P falls downwards along cover 33. Thus, it is prevented that the water caused because of carwash and rainfall imports to filter 39 and filter 39 soaks.

As mentioned above, in the present embodiment, in the air-conditioning device of the driver's cabin having on the construction machineries such as the hydraulic actuated excavator of air-conditioning equipment of exogenous QI lead-in, the cover 33 being opened when being filtered the upkeep operation of filter 39 of exogenous QI is arranged on the side of driver's cabin 14. Cover 33 is configured to, and in order to prevent filter 39 from soaking due to the water that causes because of carwash and rainfall, is set to blind plate, and can as desired by hinge opening and closing. Additionally, the exogenous QI introduction part 38 that the peristome safeguarded that covered parts 33 are closed passes through to be formed in the space between driver's cabin interior plate 37 and the driver's cabin outer panel 36 formed on driver's cabin 14 is connected to filter 39. It is positioned under the base plate of the driver's cabin 14 below filter 39 additionally, the space of exogenous QI introduction part 38 is communicated to, and forms air entry 34 at this. Thereby, it is possible to supply exogenous QI from air entry 34 to the inside of air-conditioning device. Therefore, only importing exogenous QI from air entry 34, moisture will not be imported into filter 39.

It addition, in the air-conditioning device of present embodiment, owing to air entry 34 is under bottom plate of driving cab, therefore, it is possible to prevent the water of carwash and rainfall from immersing in the space of exogenous QI introduction part 38. Soak thus, it is possible to more efficiently prevent from filter 39.

Filter 39 additionally, it is similar that with filter 39, cover 33 is set to shape, and makes the area of opening closed by cover 33 area more than filter 39, thus can be more easily replaced when opening cover 33. In the present embodiment, illustrate cover 33 and use the example of blind plate, but if being formed without opening in the opposed locations of filter 39, then can also combine the part of blind plate and opening portion and form cover 33. Additionally, in the present embodiment, illustrate the example forming downward air entry 34, but shown in Figure 17 as be described hereinafter, it is also possible to formed towards the rear of driver's cabin 14.

As it has been described above, in existing air-conditioning device, the cover being arranged at the sidepiece of driver's cabin has both the function as the lid for safeguarding the filter filtering exogenous QI and for being carried out the function of air-breathing by opening set on cover. Accordingly, there exist above-mentioned filter due to the water that causes because of carwash and rainfall and the probability soaked. Accordingly, as its countermeasure, immersion is installed and prevents with shield, or the part of blind plate is set to make opening and the opposed locations skew of filter on cover, thus preventing filter from soaking. Its result, the structure of the periphery comprising cover is complicated and maximizes, and becomes the main cause that air-conditioning installation cost uprises.

Therefore, in the air-conditioning device of present embodiment, replacing being not provided with opening on the cover for safeguard filter, air entry set from the floor of the bottom surface of driver's cabin sucks exogenous QI, thus preventing filter from soaking. In other words, make cover only have the function as the lid closed for the opening safeguarding filter, then carry out from set air entry the floor of the bottom surface of driver's cabin towards the air-breathing of air-conditioning device. By this structure, do not increase extra parts and just can realize the importing of exogenous QI with low cost, and be prevented from filter immersion. Additionally it is possible to easily implement the maintenance of filter.

Additionally, due to the filter opposed locations at cover is formed without opening, therefore, it is possible to be prevented securely from filter immersion, therefore, it is possible to be prevented securely from, due to filter immersion, the hydraulic performance decline of air-conditioning unit and the lost of life etc. of filter occur. In addition, it is not necessary to the immersion being arranged to prevent filter from soaking prevents from using shield, and cover need not be made to maximize, therefore, it is possible to prevent the cost of air-conditioning device from increasing.

Additionally, due to cover does not have opening, therefore the outward appearance of driver's cabin is also attractive in appearance, and the degree of freedom of the design of driver's cabin also improves.In addition, owing to the bottom surface of the driver's cabin below filter has opening (air entry), therefore invading the dust in the space between driver's cabin outer panel and driver's cabin interior plate and moisture is automatically drained out, therefore the spatter property of air-conditioning device improves further. Additionally, due to do not have the dust of the filter suction air entry intrusion from the bottom surface of driver's cabin and the probability of moisture, therefore the life-span of filter extends further, and can reduce the maintenance times of filter.

In addition, in the driver's cabin used on above-mentioned construction machinery, as shown in figure 15, it is mounted to rotate respectively through hinge 32b, 33b at the side surface part of the side driving chamber 31 constituting driver's cabin 14, the door 32 of boarding and the cover 33 (hereinafter referred to as lid 33) for the opening of the maintenance/inspection of enclosed filters 39.

Generally, the door 32 of boarding is opened from vehicle front side towards rear view of vehicle side with hinge 32b for rotating fulcrum, on the other hand, opens from rear view of vehicle side towards vehicle front side with hinge 33b for rotating fulcrum. The rotating fulcrum axle of the hinge 33b of lid 33 vertically extends. Therefore, when opening lid 33, the state that this is opened is kept. Therefore, as shown in figure 15, when the door 32 becoming boarding opens and covers, towards rear view of vehicle side, the structure that 33 open from rear view of vehicle side towards vehicle front side from vehicle front side, when opening door 32 when significantly opening lid 33, with, shown in double dot dash line, there is door 32 and clash into the probability of lid 33 in Figure 15. If door 32 clashes into lid 33, then hinder and open door 32, it is impossible to fully open door 32, cause obstacle when operator's boarding. If additionally, impact when door 32 and lid 33 shock big, then have that lid 33 is damaged or the probability of the glass breaking of door 32 and breakage.

It is preferred, therefore, that avoid the interference of door 32 and lid 33 and prevent door 32 and lid 33 damaged.

Figure 16 is the side view of door and the hydraulic actuated excavator of the driver's cabin of the interference of the lid checked having and avoiding boarding. Hydraulic actuated excavator 10A shown in Figure 16 has and hydraulic actuated excavator 10 essentially identical configuration shown in Fig. 8, and only the door of boarding is different from the shape of the lid checked and mounting structure. Therefore, in figure 16, the parts identical with the component parts shown in Fig. 8 being marked with identical label, the description thereof will be omitted.

In the hydraulic actuated excavator 10A shown in Figure 16, the door 51 of boarding set on driver's cabin 14 is supported for can rotate by hinge 57, and the lid 52 as the inspection of cover is supported for can rotate by hinge 59.

Figure 17 indicates that the top view of the inside of driver's cabin 14. Driver's cabin 14 is shaped generally as box-shaped, has upper surface part 14f, front surface part 14b, rear face portion 14c, the side surface part 14d of left and right, 14e and base plate (floor) 14a. In the inside of driver's cabin 14, be provided with operator take one's seat and carry out running operation attend a banquet 66 and operator carry out the function lever apparatus 67 of running operation. Additionally, attend a banquet 66 rear side, arrange be taken in oriented operating driver's cabin 14 exogenous QI and in driver's cabin 14 supply regulate the air-conditioning device of air and air-conditioning unit 41.

At the side surface part 14e (hereinafter referred to as " a sidepiece 14e ") of a side of driver's cabin 14, it is provided with the stopping port 69 for operator's boarding and for maintaining/check the inspection opening 50 of the outer air filter 56 of the exogenous QI introduction part in air-conditioning unit 41.Additionally, at a sidepiece 14e of driver's cabin 14, the door 51 of boarding for opening and closing stopping port 69 is installed and for the lid 52 of the inspection from the outside opening and closing inspection opening 50 of driver's cabin 14.

Air-conditioning unit 41 includes being built-in with vaporizer and heater (all not shown) etc. and being provided with the exogenous QI suction inlet 53 sucking exogenous QI and regulate the air-conditioning apparatus main body 55 of air air outlet 54. Additionally, exogenous QI suction inlet 53 connects with inspection opening 50, outer air filter 56 can be provided with in inspection opening 50 with changing. At this, air entry 34 is formed towards the rear of driver's cabin 14, sucks exogenous QI B.

The air-conditioning apparatus main body 55 of air-conditioning unit 41 arrow A, B direction from Figure 17 sucks interior gas and exogenous QI, mixes interior gas and exogenous QI and is undertaken by vaporizer and heater etc. the air such as temperature, humidity, ventilation to regulate and generate adjustment air C. Air C is regulated to the internal supply of driver's cabin 14, thus provide comfortable livability and environment to the operator in driver's cabin 14 from regulating air air outlet 24.

Boarding door 51 can be rotatably mounted at a sidepiece 14e of driver's cabin 14 via the hinge for door 57 as rotating fulcrum. As shown in figure 17, door 51 horizontally rotates towards rear view of vehicle side from vehicle front side when operator's boarding, opens stopping port 69. As shown in figure 18, in the toe lateral of door 51, it is provided with the door lock assembly 58 that the door 51 of boarding is remained off closed state.

The lid 52 checked is arranged in rear view of vehicle side compared with the door 51 of boarding, from outer side covers inspection opening 50, it is possible to be rotatably mounted at a sidepiece 14e of driver's cabin 14. As shown in figure 18, what check covers the 52 sidepiece 14e that can be rotatably mounted at driver's cabin 14 via the lid hinge 59 as rotating fulcrum. The lid 52 checked rotates towards vehicle front side from rear view of vehicle side and opens inspection opening 50. In the rear portion side of the lid 52 checked, it is provided with the lock assembly 60 of joint cap 52. Lid hinge 59 is positioned at the front of the lid 52 checked, rolls oblique state using the lateral rear view of vehicle in top as the rotating fulcrum axle 59a of rotating fulcrum and is arranged on a sidepiece 14e of driver's cabin 14. That is, the lid hinge 59 as the rotating fulcrum of the lid 52 checked is installed to be to tilt relative to the above-below direction of driver's cabin 14.

As it has been described above, the lid 52 checked is so that the lid hinge 59 that the upper side of rotating fulcrum axle 59a rolls tiltedly towards rear view of vehicle is fulcrum. That is, when releasing the locking of lock assembly 60 and making the lid 52 of inspection laterally rotate from inner side court, closed position indicated by the solid line from Figure 18 rotates obliquely upward towards the position represented with double dot dash line, and inspection opening 50 is opened.

When covering 52 and being positioned at 180 degree or be a bit larger tham position that the angle of 180 degree is opened, lid 52 keeps balancing at this open position. And as shown in FIG. 19 and 20, when the open angle that lid 52 is less than 180 degree, if making the handss etc. that lid 52 carries out opening operation leave from lid 52, then put on the gravity of lid 52 as making lid 22 play a role to the power closing direction rotation. Further, the lid 52 checked is automatically oriented closedown direction and rotates and return to closed position. Thus, even if disturbing with the lid 52 checked when opening the door 51 of boarding, owing to lid 52 is closed by conducting oneself with dignity, therefore, it is possible to avoid the glass breaking of the situation of lid 52 breakages and the door 51 of boarding effectively and the situation of breakage.

Figure 21 and Figure 22 represents the variation of the supporting mechanism of above-mentioned lid 52.Figure 21 indicates that the side view of a part of a sidepiece 14e of the driver's cabin 14 being installed lid 52 by lid hinge 59. Figure 22 is the sectional view of a part of a sidepiece 14e of the driver's cabin 14 being installed lid 52 by lid hinge 59.

In the variation shown in Figure 21 and Figure 22, lid hinge 59 is provided with spring members 61. Spring members 61 plays a role as follows: when relieving the locking of lock assembly 60, is maintained at by lid 52 and makes lid 52 become the open position of the midway of the state of such as 45 degree in the scope opening acute angle. In Figure 21 and Figure 22, the parts identical with the component parts shown in Figure 16 to Figure 20 are marked with identical label, and the description thereof will be omitted.

Spring members 61 is such as helical spring, and the state to be wound on the side, upper end of lid hinge 59 is installed. One end 61a of spring members 61 is fixed in a sidepiece 14e, the other end 61b of driver's cabin 14 and is configured to abut with the inner surface of the lid 52 checked. Spring members 61 when cover 52 closedown and lid 22 by lock assembly 60 be in be blocked, to opening direction to lid 52 force. Locking at lock assembly 60 is released from and covers 52 when opening, and the active force of spring members 61 makes lid 52 turn to the open position of the midway opening about 45 degree.

Then, the action of the lid 52 exerted a force by above-mentioned spring members 61 is described. When covering 52 closedown, when the locking of lid 52 is released from by lock assembly 60, due to the spring force (active force) of spring members 61, lid 52 rotates with the rotating fulcrum axle 59a of lid hinge 59 obliquely upward for fulcrum, opens about 45 degree. Lid 52 indicated by the solid line in Figure 22 is positioned at the position opening 45 degree. When catching lid 52 to rotate to opening direction further with hands etc., lid 52 separates with spring members 61, and only lid 52 turns to open position. The lid 52 represented with double dot dash line in Figure 22 is positioned at the position turning to its fully open position. When being with 180 degree in this position opened or be a bit larger tham position that the angle of 180 degree is opened, lid 52 keeps balance at this open position.

On the other hand, with as shown in double dot dash line in Figure 22, when the angle that the open angle covering 52 is less than 180 degree, if making the hands etc. that lid 52 is carried out opening operation leave from inspection cover 52, then act on the gravity of lid 52 as making lid 52 play a role to the power closing direction rotation. Thus, lid 52 is closed direction from trend and is rotated, and is back to the position abutted of the other end 61b with spring members 61. When opening the door 51 of boarding in this condition and disturb with the lid 52 checked, impact and absorbed by the spring force of spring members 61, therefore, it is possible to prevent breakage. When making lid 52 further go back to closed positions, lid 52 makes spring members 61 elastic deformation and returns. Afterwards, with lock assembly 60 locking such that it is able to keep lid 52 at closed positions.

Therefore, it is possible to avoid the glass breaking of the door 51 of the situation covering 52 breakages and the boarding checked when opening the door 51 of boarding effectively and the situation etc. of breakage. Additionally, when releasing the locking of lock assembly 60, cover 52 and automatically open up the position to precalculated position that is 45 degree of acute angle by the spring force of spring members 61 and keep, therefore easily carry out the replacing of outer air filter 56, cleaning etc., maintainability improves.

The present invention is not limited to concrete disclosed above-mentioned embodiment, can implement various variation and improvement example without departing from the scope of the present invention.

The application is based on the Japanese patent application the 2010-027952nd requiring Japanese patent application the 2010-075990th and application on February 10th, 2010 applied for the 29 days March in 2010 of priority, and its full content is quoted in the application.

Industrial utilizability

The present invention can be applicable to hydraulic actuated excavator etc. and have the construction machinery of operating room.

Label declaration

10,10A hydraulic actuated excavator

11 lower running bodies

12 slew gears

13 upper rotation

13a backplate

14,101 driver's cabin

14a floor

15 swing arms

15a swing arm cylinder

16 dippers

16a dipper cylinder

17 scraper bowls

17a scraper bowl cylinder

18 canyons

19 running motors

20 crawler belts

21 air-conditioning units

22 pipes

23 underfooting air outlets

24 chest air outlets

Frost removal before 25

27 seats

27a backrest

27b base

29 front windows

31,102 chamber is driven

32,103

33,104,121 cover

33a, 104b, 121b hinge

34 air entries

35,102a floor

36,110 driver's cabin outer panel

37,112,122 driver's cabin interior plate

38,105,123 exogenous QI introduction part

39,106 filter

40,107 exogenous QI ingress pipe

41,108 air-conditioning unit

42,109 pipe

42a, 109a air outlet

50 inspection openings

51

52 lids

53 exogenous QI suction inlets

54 regulate air air outlet

55 air-conditioning apparatus main bodies

56 outer air filters

57 hinge for doors

58 door lock assemblies

59 lid hinges

59a axle

60 lock assemblies

61 spring members

104a, 121a opening

111 immersions prevent from using shield

Claims

1. a construction machinery,

Side face at the driver's cabin of operator's entrance has:

Boarding door, the stopping port of this operator's boarding of opening and closing;

Inspection cover, the filter inspection opening of opening and closing air-conditioning device, this filter inspection opening is arranged on the position leaning on rear view of vehicle side than this stopping port; And

Lock assembly, can release ground this inspection cover of locking in closed position,

Further, above-mentioned boarding door and above-mentioned inspection cover can be rotatably mounted at above-mentioned side face via the hinge as rotating fulcrum,

Above-mentioned construction machinery is characterised by,

The above-mentioned hinge of above-mentioned inspection cover side is configured in the front of above-mentioned inspection cover, and the lateral rear view of vehicle in top making the rotating fulcrum axle of this hinge rolls and is tiltedly arranged on above-mentioned driver's cabin, so that above-mentioned inspection cover is closed by conducting oneself with dignity when above-mentioned boarding door is with the interference of above-mentioned inspection cover

Possessing spring members, above-mentioned inspection cover is exerted a force by this spring members to opening direction, thus makes above-mentioned inspection cover keep balance at open position,

By the force of this spring members, above-mentioned inspection cover rotates with the above-mentioned rotating fulcrum axle of above-mentioned hinge obliquely upward for fulcrum.

2. construction machinery according to claim 1, it is characterised in that

Above-mentioned hinge possesses spring members, and when relieving above-mentioned lock assembly to the locking of above-mentioned inspection cover, above-mentioned inspection cover is opened the half-way to above-mentioned open position and standard-sized sheet direction and keeps by this spring members.

3. construction machinery according to claim 1 and 2, it is characterised in that

Above-mentioned inspection cover is opened when safeguarding above-mentioned filter, and prevents above-mentioned filter from soaking when the opening in enclosed filters accommodation portion.

4. construction machinery according to claim 1 and 2, it is characterised in that

Above-mentioned inspection cover is formed by the blind plate part not having opening in the opposed locations with above-mentioned filter.

5. construction machinery according to claim 1 and 2, it is characterised in that have:

Air entry, sucks exogenous QI to the downwardly or rearwardly opening of above-mentioned driver's cabin;

Filter accommodation portion, to the lateral opening of above-mentioned driver's cabin, holds above-mentioned filter;

Inspection cover, it is possible to be rotatably mounted at the side of above-mentioned driver's cabin, for closing the opening in above-mentioned filter accommodation portion; And

Exogenous QI introduction part, end side is connected with above-mentioned air entry, and another side is connected with above-mentioned filter, including the space formed between driver's cabin interior plate and driver's cabin outer panel set on above-mentioned driver's cabin,

It is formed from above-mentioned air entry by above-mentioned exogenous QI introduction part the air-breathing stream being arrived the air-conditioning part of above-mentioned air-conditioning device by above-mentioned filter.