JP2003268802A - Slewing type working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a space in which small articles are housed in a slewing type working machine having only a small space on a layout. <P>SOLUTION: A cab 17 is loaded on a superstructure 14 rotatably installed on an understructure. The superstructure 14 has a revolving frame 31 and a fender 51 mounted around the revolving frame 31. An opening section 52 is formed to the fender 51 at a place corresponding to the rear section of the cab 17, a door 53 is secured into the opening section 52 in a freely openable manner and a housing space section 55 is formed inside the door 53. A tool box 56, a grease gun 57, a washer tank 58 and a controller 59 for an attachment as small articles are housed in the housing space section 55. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revolving type working machine having a storage space in a revolving frame.

[0002]

2. Description of the Related Art A hydraulic excavator as a revolving type working machine is provided with an upper revolving structure rotatably provided on a lower traveling structure.
A cab and a front working device are mounted on the upper swing body.

The space below the cab of the upper revolving structure is densely packed with pilot hydraulic piping, electrical wiring, etc., and is small for installing small items such as tool boxes and grease guns. These small items are It is common to install it in another place.

[0004]

However, it is difficult to secure a space for accommodating the small items as described above in a model having a small layout space such as a small turning machine having a small rear end radius of the upper turning body. It has become.

The present invention has been made in view of the above circumstances, and an object thereof is to secure a space for accommodating small items in a swing type working machine having a small layout space.

[0006]

According to the invention described in claim 1, an undercarriage, an upper revolving structure rotatably provided on the lower traveling structure, a cab mounted on the upper revolving structure, and With a working device protruding in front of this cab,
The upper revolving structure includes a revolving frame that is revolvingly driven with respect to the lower traveling structure, a fender mounted around the revolving frame, an opening provided in the fender at a position corresponding to the rear part of the cab, and an opening / closing mechanism in the opening. A swivel type working machine including a freely provided door body, a storage space portion provided inside the door body, and small items stored in the storage space portion, and a front portion of the working device protruding from the swivel work machine. Since there is a space in the rear part of the cab, the opening and the door are provided in the fender of the upper revolving structure at the position corresponding to the rear of the cab, and the storage space for small items is provided inside the door. Therefore, it is possible to secure a space for accommodating small items in a swing type working machine having a small layout space.

According to a second aspect of the present invention, in the revolving type working machine according to the first aspect, a cab common to a smaller model is mounted on an upper revolving structure of a specific model, and a storage space portion is mainly a cab. It is provided in the empty space area of the upper revolving structure protruding from the upper revolving structure.Since the smaller cab is shared by the larger upper revolving structure, the upper revolving structure is relatively closer to the rear of the cab than the cab. Moreover, since the projecting portion is an empty space area where the pilot hydraulic piping and electric wiring do not exist, the empty space area can be effectively used to secure a storage space for small articles.

According to a third aspect of the present invention, in the swivel type working machine according to the first or second aspect, a cab common to a smaller model is mounted at a position higher than a small model on an upper swing body of a specific model. Even if the cab common to the small model is applied to the large model, it is mounted at a higher position than the small model, so that the rear view can be secured and a storage space with a high height can be obtained. .

According to a fourth aspect of the present invention, the small items in the turning type working machine according to any one of the first to third aspects are a tool box, a grease gun, a washer tank and a controller.
Grease gun, washer tank and controller
It can be installed centrally in the storage space inside the fender that corresponds to the rear part of the cab, improving space efficiency and work efficiency.

According to a fifth aspect of the present invention, the revolving type working machine according to any one of the first to fourth aspects is a small revolving machine having a small rear end radius of the upper revolving structure, and has a layout space. Even for a small swing machine with few occupants, the opening space and door provided on the fender of the upper swing body at the position corresponding to the rear part of the cab allows the storage space below the cab to be used. Therefore, a space for accommodating small items can be secured.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the embodiment shown in FIGS.

FIG. 2 shows a hydraulic excavator as a revolving type working machine, in which a sprocket (not shown) is provided at the lowermost portion by a traveling hydraulic motor (not shown) equipped with a pair of crawlers 11 respectively. An undercarriage 12 is provided which moves the airframe by driving the undercarriage.
An upper revolving structure 14 is rotatably provided above the revolving unit 13 driven by a revolving hydraulic motor (not shown).

A front working device 15 for excavation as a working device is mounted on the front part of the upper revolving structure 14, and a glass window 16 is provided on the upper revolving structure 14 at one side of the front working device 15. A cab 17 that forms an operator's cab is mounted, a counterweight 18 for balancing the mass with the front working device 15 is mounted on the rear part of the upper swing body 14, and the front working device 15 and the counterweight 18 are combined. A power unit 19 such as an engine is mounted on the upper revolving structure 14 between them.

The front working device 15 is a cab as a whole.
The base end of the boom 21 is rotatably supported by the upper swing body 14 so as to be vertically rotatable. The arm 23 is pivotally supported in a freely rotatable manner, and a bucket 23 is pivotally supported at the tip of the arm 22 in a freely rotatable manner in the opening / closing direction.

The boom 21 is vertically rotated by a boom hydraulic cylinder 24 provided between the boom 21 and the upper swing body 14, and the arm 22 is moved by an arm hydraulic cylinder 25 provided between the boom 21 and the boom 21. Rotated in and out, bucket 23
Is rotated in the opening / closing direction by a bucket hydraulic cylinder 26 and a linkage 27 provided between the arm 22 and the arm 22.

This hydraulic excavator is a small swing machine in which the rear end radius of the upper swing body 14 is formed so small that the upper swing body 14 can swing on the lower traveling body 12.

As shown in FIG. 3, the upper swing body 14 is
It has a revolving frame 31 which is revolvingly driven with respect to the lower traveling body 12, and this revolving frame 31 has a pair of main frame plates 32 welded to the center in the front-rear direction.

At the center of the front part of the swing frame 31, the boom 21
A boom fitting groove 33 for avoiding interference with the base end of the is formed in a concave shape and surrounded by a plate 34. A pair of main frame plates facing the boom fitting groove 33
A boom mounting bracket 35 for pivotally supporting the base end portion of the boom 21 and a cylinder mounting bracket 36 for pivotally supporting the base end portion of the boom hydraulic cylinder 24 are provided between the front portions of 32. It is provided.

At the rear of each main frame plate 32,
Counterweight mount for mounting counterweight
37 are welded together. Bolt insertion holes 38 for inserting bolts (not shown) for fixing the counterweight 18 are provided in these counterweight mounts 37.
Are provided respectively.

Between the boom mounting bracket 35 and the counterweight mounting portion 37, an engine mounting portion 39 for mounting an engine is provided, which is a pair of main frame plates 32.
It is welded to.

A flat beam member 41 is welded to the swing frame 31 on one side of the boom mounting bracket 35.
A pair of cab mount portions 42 and a pair of cab mount portions 43 for mounting the cab 17 are provided on the upper surface of the beam member 41 and the front end portion of the swing frame 31 on one side of the boom fitting groove 33. It is welded.

Plates 44 and 45 are welded between the cab mounts 42 and 42 on the beam member 41 and between the cab mounts 43 and 43 on the front end, respectively, and these plates 4
Between 4 and 45, a piping / wiring area 46 for partitioning pilot hydraulic piping drawn into the cab 17, electric wiring, etc. is formed.

A hydraulic oil tank mount 47 for mounting a hydraulic oil tank is provided on the revolving frame 31 on the side opposite to the beam member 41.
Further, a fuel tank mount portion 48 for mounting the fuel tank is installed, and is surrounded by a plate 49.

As shown in FIGS. 1 and 2, a fender 51 is mounted around the revolving frame 31, and an opening 52 is provided in the fender 51 at a position corresponding to the rear portion of the cab 17, and this opening is provided. One side of a door 53 as a door body is attached to the door 52 by a hinge 54 so as to be openable and closable. This door 53
A keyhole (not shown) is provided on the other side of the door, and the door 53, which is closed flush with the fender 51, can be locked.

As shown in FIG. 1, a storage space 55 is provided inside the door 53, and a tool box 56 as a small item, a grease gun 57, a washer tank 58, and a controller are provided in the storage space 55. The attachment controller 59 is stored and positioned and fixed by a fixing metal fitting (not shown).

The grease gun 57 is arranged above the storage space 55, and has a tool box 56 and a washer tank 58.
Are arranged below the grease gun 57, and the attachment controller 59 is arranged on the beam member 41 at the back of them.

The tool box 56 is a tool box for storing various tools such as a spanner and a hammer, and the grease gun 57 is
The washer tank 58 is a manual pump for filling the mechanical rubbing part with grease, and the washer tank 58 is a container for the cleaning liquid supplied to the wiper attached to the glass window 16 of the cab 17, and can store two types of large and small. is there.

In addition to the main controller for controlling the main control valve of the hydraulic circuit, the attachment controller 59 is equipped with an attachment such as a hydraulic breaker, a hydraulic crusher or the like at the tip of the arm 22 instead of the bucket 23. At this time, it is a controller installed to control the operation of these attachments, and it is necessary to open the door 53 in order to confirm the indicator of the controller 59 for this attachment.

On the other hand, in the pipe / wiring area 46 provided in most of the space below the cab 17, the cab platform is provided.
Pilot hydraulic piping 63 drawn out from the inside of the cab through the tubular portion 62 attached to 61, electrical wiring, etc. are densely packed, so in the piping / wiring area 46, a storage space 55 for small items as described above is provided. Is not installed.

The beam member 41 welded to one side of the revolving frame 31 is a hollow beam member having an open end 64 at the outer end, and the fender corresponding to the open end 64 of the beam member 41. The opening 52 is provided at 51, and the door 53 is provided at the opening 52 so as to be openable and closable.

A guard member storage space 65 is provided inside the door 53 in the inner space of the beam member 41, and in this guard member storage space 65, vandalism as a guard member for preventing cab damage. The guard 66 is stored in a folded state.

The bandarism guard 66 is a foldable shield iron plate which is attached to the outside of the glass window 16 of the cab 17 and protects the glass window 16 from mischief, and accommodates a plurality of different sizes. .

FIG. 4 shows a plane arrangement on the upper revolving superstructure 14, in which a swivel joint 71 for connecting the hydraulic pipes of the lower traveling body 12 and the upper revolving superstructure 14 is arranged at the center,
In the vicinity thereof, a turning hydraulic motor 72 for turning and driving the upper turning body 14 with respect to the lower traveling body 12 is arranged, an engine 73 is arranged behind the turning hydraulic motor 72, and one side of the engine 73 is arranged. A hydraulic pump 74 of a hydraulic circuit is installed in the section, a radiator and a cooling package 75 of an oil cooler as a cooling device, and an air filter 76 are respectively arranged on the other side of the engine 73, and a cab 17 is provided in front of them. The main control valve 77 of the hydraulic circuit is arranged on the opposite side of the cab 17 via the boom fitting groove 33.
A hydraulic oil tank 78 and a fuel tank 79 are arranged.

Although the upper swing body 14 shown in FIG. 4 is of a specific model, a cab 17 of a model smaller than the specific model is commonly mounted, and therefore, the storage space 55 is provided.
Is mainly provided in the empty space area A of the relatively large upper swing body 14 protruding from the relatively small cab 17.

For example, in a 21 ton class small swing type hydraulic excavator, that is, a small swing machine, since the cab 17 is commonly used with a small machine of 8 ton or 13 ton class, 2
The portion of the 1-ton class upper revolving structure 14 protruding from the cab 17 of the 8-ton or 13-ton class is an empty space area A. This empty space area A also includes pilot hydraulic piping and electrical wiring inside the upper revolving structure 14. Since it is a dead space that does not exist, this empty space region A is mainly effectively used as the storage space portion 55.

Further, the cab mount portion 4 shown in FIG.
Nos. 2 and 43 are installed on the upper revolving structure 14 of a specific model with a sufficient height so that the cab 17 common to the smaller model is mounted at a higher position than the smaller model.

For example, even if a cab 17 of 8 ton or 13 ton class is used, a cab 17 is 60% smaller than a small machine of 8 ton or 13 ton class so that a sufficient rear view can be obtained in a small turning machine of 21 ton class. Since it is mounted at a high position, the empty space area under the cab platform 61 is 8 mm as shown in FIG. 1 (b).
This empty space area is effectively used as a storage space 55 because it has a sufficient margin compared to a small machine of a ton or 13 ton class.

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

The door 53 is unlocked by the unlocked key.
Then, the required tool box 56 and grease gun 57 are taken out from the storage space 55 inside the door 53, the washer tank 58 is replenished with the cleaning liquid, or the indicator of the attachment controller 59 is checked.

When the tool box 56 and the grease gun 57 are returned to the storage space 55 and the washing liquid replenishment of the washer tank 58 or the indicator confirmation of the attachment controller 59 is completed, the door 53 is closed and locked.

An opening 52 and a door 53 are provided in the fender 51 of the upper revolving structure 14 at a position corresponding to the rear portion of the cab 17 with a sufficient space, and a storage space 55 for accommodating small items is provided inside the door 53. Therefore, in a rotary work machine with a small layout space, the tool box 56, grease gun 57, washer tank 58, and attachment controller 59
You can secure a space to store small items such as.

Since the smaller cab 17 is shared by the larger upper slewing body 14, the upper slewing body 14 relatively projects from the cab 17 toward the rear of the cab 17, and
Since this projecting portion is an empty space area A where pilot hydraulic piping and electric wiring do not exist, the empty space area A can be effectively used to secure a storage space 55 for small articles.

Even if the cab 17 common to the small model is applied to the large model, the cab 17 is mounted at a higher position than the small model, so that the rear view can be secured and the storage space 55 having a high height can be provided. can get.

By effectively utilizing the empty space area A as the storage space 55, the tool box 56 and the grease gun
57, the washer tank 58, and the attachment controller 59 can be collectively installed in the storage space 55 inside the fender 51 corresponding to the rear part of the cab 17. This allows
Space efficiency is improved and work efficiency is improved as compared with the case where these are distributed.

In short, the storage space inside the fender 51
By providing the opening 52 and the door 53 in the fender 51 of the upper swing body 14 at a position corresponding to the rear portion of the cab 17 so as to be accessible to the cab 17, the empty space area A located below the cab 17 is provided. Since it can be effectively used as the storage space 55, even a small turning machine with a small layout space can secure a space for storing small items, and is an extremely effective space for a small turning machine with a small layout space. Use.

The inner space of the beam member 41 of the swivel frame 31 is used as a guard member storage space 65 for accommodating a guard member for preventing cab damage, and the upper swivel body is provided in correspondence with the opening end 64 of the beam member 41. Since the fender 51 of 14 is provided with the opening 52 and the door 53, it is possible to secure a storage place for storing the vandalism guard 66 in a swing type working machine with a small layout space.

That is, since the opening 52 and the door 53 are provided in the fender 51 of the upper revolving structure 14, the inner space of the beam member 41 of the revolving frame 31 which has not been used in the dead space in the past is guarded. It can be effectively used as the storage space portion 65, and a storage place for storing the folded vandalism guard 66 can be secured even for a small-rotation type rotary working machine with a small layout space.

The present invention can be applied not only to the hydraulic excavator for excavating with the bucket 23, but also to a working machine in which a hydraulic breaker, a hydraulic crusher and the like are mounted on a machine body common to the hydraulic excavator.

[0049]

According to the first aspect of the present invention, the fender of the upper swing body is provided with the opening and the door at a position corresponding to the rear of the cab with a sufficient space, and small articles are provided inside the door. Since the storage space portion is provided, it is possible to secure a space for storing small items in a swing type working machine with a small layout space.

According to the second aspect of the present invention, since the smaller cab is shared by the larger upper swing body,
Since the upper revolving structure relatively projects from the cab toward the rear of the cab, and moreover, since this projecting part is an empty space area where pilot hydraulic pipes and electric wiring do not exist, this empty space area can be used effectively. A storage space for small items can be secured.

According to the third aspect of the invention, even if the cab common to the small model is applied to the large model, the cab is mounted at a higher position than the small model, so that the rear view can be secured and the height can be afforded. A storage space part with

According to the invention described in claim 4, the tool box, the grease gun, the washer tank, and the controller can be concentratedly installed in the storage space inside the fender corresponding to the rear part of the cab, thereby improving space efficiency and work efficiency. it can.

According to the fifth aspect of the present invention, even in a small turning machine having a small layout space, the opening and the door are provided in the fender of the upper turning body at a position corresponding to the rear part of the cab. Since the storage space located below the cab can be used, a space for storing small items can be secured.

[Brief description of drawings]

FIG. 1 (a) is a plan view of a main part showing an embodiment of an upper swing body of a swing type working machine according to the present invention, and FIG.
It is a front view showing an example of arrangement of small articles stored in the storage space.

FIG. 2 is a perspective view of the swivel work machine of the above.

FIG. 3 is a perspective view showing a revolving frame of the revolving type working machine.

FIG. 4 is a plan view showing an arrangement example on an upper revolving structure of the same revolving type working machine.

[Explanation of symbols]

12 Undercarriage 14 Upper revolving structure 15 Front working device as working device 17 Cab 31 Revolving frame 51 Fender 52 Opening 53 Door as door 55 Storage space 56 Small items (tool box) 57 Small items (grease gun) 58 Small items (washer tank) 59 Small items (attachment controller as controller) A Empty space area

Claims (5)

[Claims] 1. A lower traveling structure, an upper revolving structure rotatably provided on the lower traveling structure, a cab mounted on the upper revolving structure, and a work device projecting in front of the cab. The upper revolving structure includes a revolving frame that is driven to revolve with respect to the lower traveling structure, a fender mounted around the revolving frame, an opening provided in the fender at a position corresponding to the rear part of the cab, and an opening. A swivel type working machine comprising: a door body that can be opened and closed freely; a storage space portion provided inside the door body; and small items stored in the storage space portion. 2. A cab common to smaller models is mounted on an upper revolving structure of a specific model, and the storage space is mainly provided in an empty space region of the upper revolving structure protruding from the cab. The swivel type working machine according to claim 1. 3. The revolving type working machine according to claim 1, wherein a cab common to a smaller model is mounted at a higher position on the upper revolving structure of the specific model than the smaller model. 4. The swivel type working machine according to claim 1, wherein the small items are a tool box, a grease gun, a washer tank, and a controller. 5. The swing type working machine according to claim 1, wherein the swing type working machine is a small swing machine having a small rear end radius of the upper swing body.