JPH11280116A - Protection device for cab - Google Patents

Protection device for cab

Info

Publication number
JPH11280116A
JPH11280116A JP8602598A JP8602598A JPH11280116A JP H11280116 A JPH11280116 A JP H11280116A JP 8602598 A JP8602598 A JP 8602598A JP 8602598 A JP8602598 A JP 8602598A JP H11280116 A JPH11280116 A JP H11280116A
Authority
JP
Japan
Prior art keywords
plate
driver
protection
sheet
guard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP8602598A
Other languages
Japanese (ja)
Inventor
Hachiro Nakajima
八郎 中島
Original Assignee
Takahashi Works:Kk
株式会社タカハシワークス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takahashi Works:Kk, 株式会社タカハシワークス filed Critical Takahashi Works:Kk
Priority to JP8602598A priority Critical patent/JPH11280116A/en
Publication of JPH11280116A publication Critical patent/JPH11280116A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16Cabins, platforms, or the like, for drivers
    • E02F9/163Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]

Abstract

(57) [PROBLEMS] To provide a cabin guard made of a transparent resin plate in an operator's cab of an industrial vehicle so that the front surface of the front glass and the inner surface of the transparent resin plate can be easily cleaned. SOLUTION: A stay attached in front of a cabin 2 rotatably supports a protection guard (movable protection guard portion 7) made of a transparent resin plate via a hinge, and connects the other end of the protection guard to the cabin body. It is configured to be removably attached to.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driver's cab protection device for an industrial vehicle such as a construction vehicle or a transport vehicle, and more particularly, to a protective transparent plate provided in front of or above a driver's cab via a support frame. The present invention relates to an operator cab protection device provided.

[0002]

2. Description of the Related Art Conventionally, construction vehicles such as hydraulic shovels and transport vehicles such as forklifts, especially when those vehicles are used on site for crushing work, demolition work or deforestation work, etc. A piece or the like is scattered and abuts against the front glass or the like of the driver's cab, and there is a risk that the front glass or the like may be broken.

As the cabin guard, a wire mesh or a metal perforated plate is most commonly used,
In such a metal thing, since pebbles intrude from the gap of the mesh, it is not always possible to reliably protect the cab or because this cabin guard blocks the driver's view However, there is a problem that workability is reduced.

In order to cope with such a problem, the cabin guard is made of a transparent resin plate having a high impact resistance so as to simultaneously satisfy the requirements of protecting the driver's cab and ensuring the driver's visibility. What has been proposed.

[0005]

However, when the above-mentioned cabin guard made of a transparent resin plate is installed at the front of the cab or the like, if the front glass of the cab or the inner surface of the transparent resin plate becomes dirty, In order to clean the portion of the front glass other than the wiper wiping area and the inner surface of the transparent resin plate, it is necessary to insert a hand through a gap between the front glass and the transparent resin plate to perform the work. Not only is the work difficult, but there is also a problem that a portion that cannot be cleaned occurs, and the driver's view cannot be sufficiently secured.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and in a case where a cabin guard made of a transparent resin plate is provided in an operator's cab of an industrial vehicle, a front glass front surface and a transparent resin plate inner surface are provided. It is an object of the present invention to provide a driver's cabin protection device that facilitates cleaning.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a driver's cab protection device according to the present invention is provided with a protective transparent front or upper part of a driver's cab of an industrial vehicle via a support frame. A driver's cab protection device provided with a plate, wherein the transparent plate has one end rotatably supported by the support frame via a hinge, and the other end has a fixing means on the support frame. It is characterized in that it is detachably attached via a connector.

According to the present invention, the protective transparent plate provided in front of and / or above the driver's cab of the vehicle can be opened and closed by the hinge, so that the transparent plate is kept closed at the time of work. Thereby, even if there is a flying object from the outside, the flying object can be prevented from directly colliding with the glass surface of the driver's cab and the driver can be protected. In addition, since the guard member for protecting the glass surface is made of a transparent plate, it does not hinder the driver's view and can improve workability. On the other hand, if the glass surface or the inner surface (inner surface) of the transparent plate is dirty and you want to clean it,
By removing the fixing means of the transparent plate and turning it around the hinge in the opening direction, the cleaning operation can be easily performed. Thus, it is possible to always maintain the driver's visibility well.

In the present invention, the transparent plate is constituted by two resin plates each consisting of a thick plate and a thin plate, with the thin plate facing outward, and the thin plate removably superimposed on the thick plate. Is preferred. When a resin such as polycarbonate is used as the transparent plate as described above, it is inevitable that a sharp dent is generated when a sharp and hard flying object collides with the material due to the nature of the material. When used for an operation that generates a lot of flying objects, it may be difficult to maintain the transparency of the transparent plate well over a long period of time. Further, the transparency of the transparent plate may be lost due to aging due to ultraviolet irradiation. For this reason, the transparent plate must be replaced every certain period of use, and this replacement requires a great deal of cost and work time. In contrast, as in the present invention,
The transparent plate is composed of an outer thin plate and an inner thick plate, and the thin plate can be attached to and detached from the thick plate. In the event of deterioration, only inexpensive thin plates are replaced, and replacement parts costs are greatly reduced. In addition, a relatively expensive thick plate can be protected from direct damage from flying objects and direct irradiation with ultraviolet rays, thereby achieving overall cost reduction and long life. Becomes possible.

In the present invention, a conductive fiber is adhered to a surface of one of the two resin plates, and a string-shaped conductive material extending from the conductive fiber is provided. Is preferred. Due to the nature of the transparent resin plate according to the present invention, if it is wiped off with a dry cloth or the like in order to remove dust adhering to the surface, it becomes charged due to the generation of static electricity, and the adhesion of dust becomes more remarkable. With respect to such a problem, by providing the conductive fiber and the string-shaped conductive material as described above, the static electricity generated on the surface of the transparent resin plate can be removed by discharging to prevent charging. As a result, it is possible to prevent dust from adhering to the surface of the transparent resin plate and to always improve the driver's visibility.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of the cab protection device according to the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view of a cabin provided with a protection device (cabin guard) according to an embodiment of the present invention. FIG. 2 is a side view of the protection device, and FIG.
(A) and (b) show a plan view and a front view of the protection device,
Each is shown.

The protection device 1 according to the present embodiment includes a ceiling opening / closing window 3 of a cabin 2 in a construction machine such as a hydraulic shovel.
And a front protection guard 6 disposed at a position in front of the front window 5 of the cabin 2.
The front protective guard 6 is configured to be divided into a movable protective guard 7 provided at an upper part and a fixed protective guard 8 provided at a lower part. Here, these protective guards 4 and 6 are formed of transparent resin plates (polycarbonate plate in this embodiment) 17 and 2 as described later.
9 and 30, the driver in the cabin 2 can easily visually recognize the movement of the work equipment in front through the protective guards 4 and 6. The polycarbonate plate is excellent in impact resistance and penetration resistance, does not break even when external impact energy is applied, and can sufficiently fulfill the function of protecting the front glass of the cabin 2 and the like. it can.

The upper protective guard 4 has an upper frame 11 which is fixed to a plurality of mounting seats 9 provided on the top surface of the cabin 2 via bolts 10 in a substantially horizontal arrangement.
The upper frame 11 substantially covers the entire top surface of the cabin 2 and has a front end extending slightly forward from the front surface of the cabin 2. On the right side of the front end of the upper frame 11 (on the right side as viewed from the driver's seat; hereinafter, the terms right and left are used in a similar manner), a vertically long stay made of L-shaped steel is provided via a right upper bracket 12. 13 is fixed at its upper end by bolts 14 and
Is extended to the upper portion of the fixed protective guard portion 8,
It is fixed to a mounting seat (not shown) provided on the front surface of the cabin 2 by bolts.

First, the structure of the movable protection guard 7 in the front protection guard 6 will be mainly described.

As shown in FIG. 4B (a sectional view taken along the line BB in FIG. 3B), the stay 13 has a total of two pieces, one at each of two upper and lower positions. The hinges 15, 15 are fixed, and the other ends of the hinges 15, 15 are fixed to a right frame 16 made of L-shaped steel and extending only along the movable protection guard 7 along the stay 13. .
The right frame 16 holds a transparent resin plate (first resin plate) 17 made of polycarbonate.

As shown in FIG. 5, the first resin plate 17 is made of a polycarbonate plate (thick plate) 17a having a thickness of about 5 mm or more, and a thickness which is superimposed on the outer surface of the plate 17a. It is also made of a polycarbonate sheet (thin plate) 17b of about 1 mm.

The plate 17a is provided with a plurality (five in this embodiment) of bolt insertion holes 18 for fixing metal fittings on both left and right sides, and is supported on the main body side of the cabin 2 only on both sides. The plate 17a has no configuration, in other words, without a lateral bar (reinforcing member) that blocks the driver's view.
It is configured to be supported by its own rigidity. On the other hand, when the sheet 17b is put on the surface of the plate 17a, the surface of the sheet 17b is
The width is slightly smaller than the width of the plate 17a so as not to be hooked on the bolt insertion hole 18 of FIG.
As shown in (c), the upper and lower ends are bent into a U-shape in cross section so that the vertical inner dimension after the bending is equal to or slightly larger than the outer dimension of the plate 17a. Have been. After the U-shaped one end of the sheet 17b is hooked on the one end of the plate 17a, the sheet 17b is bent by its own elastic force, and the U-shaped other end is connected to the other end of the plate 17a. To hold the sheet 17a on the surface of the plate 17a.
b is closely held (see FIG. 5C). As described above, since the first resin plate 17 is configured by fitting the sheet 17b to the outside of the plate 17a, when the surface sheet 17b is deteriorated due to minute dent scratches or aging due to ultraviolet irradiation, In addition, by replacing only the inexpensive sheet 17b, the cost of replacement parts can be greatly reduced, and the relatively expensive plate 17a is protected from direct damage from flying objects and direct irradiation with ultraviolet rays. be able to. Further, since the sheet 17b can be attached to the plate 17a by one-touch by bending the sheet 17b without using tools, it is possible to avoid a large amount of time required for replacing the sheet 17b. Can be.

The first resin plate 17 in which the sheet 17b is integrated with the plate 17a is the plate 1
7a at the position of the insertion hole 18 formed on the right side of the frame 1a.
Fixed to 6. As this fixing method, FIG.
As shown in FIG. 3B, a cylindrical spacer 19 is fitted inside the insertion hole 18, and a rubber sheet 20 is provided around the spacer 19. 20 and guides 21 and 21, respectively, sandwiching the plate 17a, the bolt 22 and the nut 23
As a result, the right frame 16 is tightened.

On the other hand, a left frame 24 similar to the right frame 16 is provided on the left side of the movable protection guard 7, and the left frame 24 is connected to the plate 19 via the same spacer 19, sheet 20, guide 21 and the like as described above. 17a. Also, the left frame 24
, A total of two first female fixing brackets (bosses) 25 are provided, one at each of two upper and lower positions. Correspondingly, the first female fixing bracket 25,
The second female fixing metal fittings 26, 26 which engage with the second female fixing metal 25 are provided (in this embodiment, the upper female fixing metal fitting 26 is fixed to the left upper bracket 12). By inserting the male fixing bracket (pin) 27 into the insertion hole in a state where the brackets 25 and 26 are engaged, the left end of the movable protection guard 7 can be fixed to the cabin 2 main body. ing.

With this configuration, the male fixing bracket 27 is pulled out from the fixed state of the female fixing brackets 25 and 26 by the male fixing bracket 27 provided on the left side of the movable protection guard 7. After that, if the movable protection guard portion 7 is rotated with the right hinges 15, 15 as fulcrums, the front window 5 of the cabin 2 is exposed as shown by the two-dot chain line in FIG. 5 and the back surface of the first resin plate 17 can be easily cleaned. After the cleaning, the work can be resumed by rotating the movable protection guard portion 7 to the original position again and fixing the movable protection guard portion 7 to the cabin 2 main body side by the male fixing bracket 27 and the female fixing brackets 25 and 26. Can be.

Next, with respect to the structure of the fixed protective guard portion 8, a right frame (not shown) and a left frame 28 having the same shape as the right frame 16 or the left frame 24 in the movable protective guard portion 7 are provided. A structure in which the upper portion of the frame is fixed to the stay 13, the lower portion of the right frame and the upper and lower portions of the left frame 28 are fixed to the main body of the cabin 2, and the second resin plate 29 is supported on each of the left and right frames. It has been. The second resin plate 29 is a thick plate 29a.
It is the same as the first resin plate 17 that is composed of the sheet 29b having a small thickness.

Next, the detailed structure of the upper protection guard 4 will be described.

In the upper protective guard 4, a third resin plate 30 is fixed to the upper frame 11 at both left and right ends thereof through the same spacers 19, sheets 20, guides 21, and the like. ing. Here, as shown in FIG. 6A, the third resin plate 30
Is composed of a polycarbonate plate (thick plate) 30a and a polycarbonate sheet (thin plate) 30b which is superimposed on the outer surface (upper surface) of the plate 30a. Here, unlike the first resin plate 17 or the second resin plate 29, the sheet 30b has a shape in which both ends are bent in an approximately L-shape outward (upward). The substantially L-shaped end shape is intended to prevent rainwater that has fallen on the upper surface of the seat 30b during work in rainy weather from flowing irregularly to the front of the driver. The letter-shaped end acts as a gutter and guides rainwater to the side along the gutter,
The driver can work comfortably even in rainy weather.

As described above, since the end of the sheet 30b is bent upward in the third resin plate 30, a fixing fitting 31 is provided for bringing the sheet 30b into close contact with the plate 30a. The fixing bracket 31 is welded to a guide 21 which is a metal fitting for attaching the third resin plate 30 to the upper frame 11, and the two first fixing brackets 31 holding an intermediate portion of the sheet 30b.
a and two second fixing brackets 31b for holding both ends of the sheet 30b.

The first fixture 31a is shown in FIG.
As shown in (b), a sectional view taken along line D-D), the guide 21 is formed of a strip-shaped thin plate fixed to the upper surface of the guide 21, and the leading end side of the thin plate is bent into a dogleg shape. It is shaped. The first fixing bracket 31a is formed by using a tool such as a screwdriver to guide the central bent portion to the guide 21.
The sheet 30b is pressed and fixed to the surface of the plate 30a by utilizing the plastic deformation of the sheet 30a by pushing the sheet 30b toward the backside of the sheet 30 to the position indicated by the two-dot chain line.

On the other hand, the second fixture 31b is shown in FIG.
As shown in FIG. 6 (b), as viewed from the arrow C in FIG. 6B, the edge portion is formed of a thin plate having a parallelogram so as to follow the edge shape of the sheet 30b, and the first fixing bracket 31a is formed. Similarly to the above, the front end side is bent in the shape of a dogleg. The second fixing fitting 31b also presses and fixes the sheet 30b to the surface of the plate 30a by using the plastic deformation by pushing the central bent portion to the position indicated by the two-dot chain line.

As described above, in the third resin plate 30,
By pressing the sheet 30b with the first and second fixing members 31a and 31b without using a special tool, the sheet 30b can be easily fixed to the outside of the plate 30a and can be easily removed. Therefore, when the sheet 30b on the front surface is deteriorated, by replacing only the inexpensive sheet 30b, it is possible to greatly reduce the cost of replacement parts.

In this embodiment, the front end of the upper protection guard 4 is arranged so as to protrude forward from the front surface of the front protection guard 6. By doing so, the upper protective guard 4 functions as an eave,
It is possible to prevent raindrops from adhering to the surface of the front protection guard 6 or the front window 5 of the driver's cab during rainy weather, and it is possible to operate without impairing the field of view even in rainy weather.

In the description of the present embodiment, each of the resin plates 17 and 2
The two polycarbonate plates 9 and 30 were used.
7a, 29a, 30a or sheets 17b, 29b,
30b, a conductive fiber is provided on the surface of one of the resin plates by bonding, and a string-shaped conductive material extending from the conductive fiber portion is provided, and the tip of the string-shaped conductive material is air-discharged or grounded. It is preferable to configure so that
In this way, even if the surface of the resin plate is wiped off with a dry cloth or the like in order to remove dust, the static electricity generated at this time can be easily discharged and removed. It is possible to prevent dust from adhering to the vehicle and always improve the driver's visibility. In addition, as the conductive fiber used here, a fiber used for electromagnetic wave shielding can be diverted.

In this embodiment, the movable protection guard 7
As fixing means for fixing the left frame 24 to the cabin 2 main body side, female fixing metal fittings 25 and 26 and male fixing metal fitting 2
Although the above description has been made with reference to FIG. 7, various other means can be used as the fixing means. FIG. 7 shows an example of this. In this example, the bracket 32 is welded to the upper bracket 12 toward the front, and the bracket 33 is upwardly attached to the left frame 28 on the fixed protective guard portion 8 side. Welded, these brackets 3
The left frame 24 of the movable protection guard 7 is fixed to the movable protection guards 2 and 33 with bolts 34 and 34. In such a configuration, the left end of the movable protection guard 7 is fixed by fastening the bolt and nut, and the movable protection guard 7 can be rotated by releasing the fastening of these bolts and nuts. In addition, a fixing means such as a clamp may be used.

In the present embodiment, it goes without saying that an attachment means such as the upper protection guard 4 may be used as an attachment means for attaching the sheets 17b, 29b of the front protection guard 6 to the plates 17a, 29a. Also, such attachment means are designed to make it easy to remove the sheet from the plate, but the attachment,
If a tool or the like can be used for detachment, it may be attached using a fixing tool such as a bolt or a nut.

In the present embodiment, the resin plate is held by the right side frame 16 and the left side frame 24 arranged on both sides in the movable protection guard section 7, for example. By providing the crosspiece, the movable protection guard 7 can have a more rigid structure. In this case, the position where the horizontal rail is provided needs to be set in consideration of the driver's view.

Although the present embodiment has been described as applied to a hydraulic excavator, the present invention can be applied to various other industrial vehicles including construction vehicles and transport vehicles such as forklifts.

It should be noted that the upper frame 1 in this embodiment is
1, upper bracket 12, stay 13, left frame 2
8 and the like correspond to the support frame in the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a cabin equipped with a protection device according to one embodiment of the present invention.

FIG. 2 is a side view of the protection device of the present embodiment.

FIG. 3 is a plan view (a) and a front view (b) of the protection device of the present embodiment.

FIG. 4 is a cross-sectional view (a) along the line AA and a cross-sectional view (b) along the line BB in FIG. 3 (b).

FIG. 5 is a view showing a first resin plate,
(A) is a front view of a plate (thick plate), (b) is a front view of a sheet (thin plate), and (c) is an end sectional view showing a state where the sheet is attached to the plate.

6A and 6B are diagrams showing a mounting structure of a third resin plate, in which FIG. 6A is a cross-sectional view showing a state in which a sheet is mounted on a plate, FIG. 6B is a bottom view showing a fixing bracket, (C) is a view on arrow C of (b), and (d) is a sectional view taken along line DD of (b).

FIGS. 7A and 7B are diagrams showing another example of a structure for attaching the movable protection guard portion to the cabin body side, wherein FIG. 7A is a side view, and FIG. 7B is a line EE in FIG. It is sectional drawing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Protector 2 Cabin 4 Upper protective guard 6 Front protective guard 7 Movable protective guard 8 Fixed protective guard 11 Upper frame 12 Upper bracket 13 Stay 15 Hinge 16 Right frame 17 First resin plate 17a Plate (thick plate) 17b Sheet (thin plate) 24 Left frame 25 First female fixing bracket 26 Second female fixing bracket 27 Male fixing bracket 28 Left frame 29 Second resin plate 29a Plate (thick plate) 29b Sheet (thin plate) 30 Third Resin plate 30a Plate (thick plate) 30b Sheet (thin plate) 31 Fixture

Claims (3)

[Claims]
1. A driver's cab protection device comprising a protection transparent plate provided in front of or above a driver's cab of an industrial vehicle via a support frame, wherein one end of the transparent plate is attached to the support frame. A driver's cab protection device, which is rotatably supported via a hinge and the other end of which is detachably attached to the support frame via fixing means.
2. The transparent plate comprises a thick plate and a thin plate.
2. The driver's cab protection device according to claim 1, wherein the plurality of resin plates are configured such that the thin plates are on the outside and the thin plates are detachably stacked on the thick plate.
3. A conductive fiber is adhered to a surface of one of the two resin plates, and a string-shaped conductive material extending from the conductive fiber is provided.
Driver's cab protection device according to (1).
JP8602598A 1998-03-31 1998-03-31 Protection device for cab Withdrawn JPH11280116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8602598A JPH11280116A (en) 1998-03-31 1998-03-31 Protection device for cab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8602598A JPH11280116A (en) 1998-03-31 1998-03-31 Protection device for cab

Publications (1)

Publication Number Publication Date
JPH11280116A true JPH11280116A (en) 1999-10-12

Family

ID=13875129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8602598A Withdrawn JPH11280116A (en) 1998-03-31 1998-03-31 Protection device for cab

Country Status (1)

Country Link
JP (1) JPH11280116A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2837427A1 (en) * 2002-03-19 2003-09-26 Volvo Constr Equip Holding Se Subglass preserving apparatus for driving room of heavy equipment, has locking unit installed at inner surface upper portion of entrance door, to support outer surface upper portion of subglass abutting
JP2007062505A (en) * 2005-08-30 2007-03-15 Hitachi Constr Mach Co Ltd Construction machine
JP2012193511A (en) * 2011-03-15 2012-10-11 Kobelco Contstruction Machinery Ltd Work machine
JP2013170446A (en) * 2012-02-23 2013-09-02 Kobelco Contstruction Machinery Ltd Front guard device of construction machine
JP2015096673A (en) * 2013-11-15 2015-05-21 コベルコ建機株式会社 Front guard of work machine
EP2085523A3 (en) * 2008-01-31 2017-04-19 CNH Industrial Italia S.p.A. Work vehicle viewing system.
CN108385764A (en) * 2018-03-15 2018-08-10 长安大学 A kind of novel excavator cab protecting against shock vibration absorber

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2837427A1 (en) * 2002-03-19 2003-09-26 Volvo Constr Equip Holding Se Subglass preserving apparatus for driving room of heavy equipment, has locking unit installed at inner surface upper portion of entrance door, to support outer surface upper portion of subglass abutting
JP2007062505A (en) * 2005-08-30 2007-03-15 Hitachi Constr Mach Co Ltd Construction machine
JP4504283B2 (en) * 2005-08-30 2010-07-14 日立建機株式会社 construction machinery
EP2085523A3 (en) * 2008-01-31 2017-04-19 CNH Industrial Italia S.p.A. Work vehicle viewing system.
JP2012193511A (en) * 2011-03-15 2012-10-11 Kobelco Contstruction Machinery Ltd Work machine
JP2013170446A (en) * 2012-02-23 2013-09-02 Kobelco Contstruction Machinery Ltd Front guard device of construction machine
JP2015096673A (en) * 2013-11-15 2015-05-21 コベルコ建機株式会社 Front guard of work machine
CN108385764A (en) * 2018-03-15 2018-08-10 长安大学 A kind of novel excavator cab protecting against shock vibration absorber

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Effective date: 20050607