CN204781067U - Cabin of construction machinery - Google Patents
Cabin of construction machinery Download PDFInfo
- Publication number
- CN204781067U CN204781067U CN201520282613.9U CN201520282613U CN204781067U CN 204781067 U CN204781067 U CN 204781067U CN 201520282613 U CN201520282613 U CN 201520282613U CN 204781067 U CN204781067 U CN 204781067U
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- Prior art keywords
- pillar
- front pillar
- cabin
- driver
- window glass
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Abstract
The utility model discloses a cabin of construction machinery has right front strut, left front strut, right back pillar, left back pillar and disposes the right side face -port glass between right front strut and right back pillar. The tip submerges towards the inboard of driver's cabin behind right side front strut's the side, and right side face -port glass's ahead marginal part holds in right front strut's side rear end. Between tip behind right front strut's the side and right side face -port glass's ahead marginal part, press from both sides and be equipped with the strengthening part. The utility model discloses a driver's cabin can be in improving a pair of front strut one of them have relatively inflexible while of pillar that higher rigidity required, do not destroy the outward appearance of driver's cabin, even if form at each front strut under the circumstances of symmetrical shape roughly, what produce between the outside through reducing an other spinal branch post and window glass's the outside is section poor, can improve the aesthetic property of driver's cabin outward appearance.
Description
Technical field
The utility model relates to a kind of cabin of construction machinery, and this cabin of construction machinery possesses: right front pillar, left front pillar, right back pillar and left back pillar; The window glass at least arranged between top of at least top of right front pillar or left front pillar and right back pillar or left back pillar; In closed state, the door of left front pillar or right front pillar is connected to.
Background technology
Generally, the hydraulic crawler excavator as building machinery typical example is formed by with lower part substantially: moveable lower traveling body; Rotatably be equipped on the upper rotating body on lower traveling body; Can be arranged on to free pitching the work jibs device in the central front portion of upper rotating body.
In the left side of upper rotating body, work jibs device, be configured with the driver's cabin that driver takes.This driver's cabin possesses right front pillar, left front pillar, right back pillar and left back pillar; Be configured at the window glass between right front pillar and right back pillar; And in closed state, be connected to the door of left front pillar side.
Window glass and Men Shi is connected to, in order to the outside of the outside and door that do not make window glass is closer to the protruding outside of left and right directions than the outside of each front standing pillar, so its side rearward end submerged towards the inner side of driver's cabin at right front pillar and left front pillar.And, the front edge portion of window glass be contained in right front pillar by the side rearward end of submerging.In addition, under the state that door is closed, the front edge portion of door is connected to the side rearward end of the left front pillar that submerges.
On slope or out-of-flatness ground, when hydraulic crawler excavator is toppled over, in order to protect the driver in driver's cabin not to be extruded, in this case, in order to ensure there being enough spaces in driver's cabin, driver's cabin is needed to possess certain rigidity.Therefore, in right front pillar and left front pillar, in order to improve the performances such as rigidity while side rearward end of submerging, employing and steel pipe is carried out the hollow profiled steel pipe after drawing processing.
Once hydraulic crawler excavator is toppled over, when the left surface (being configured with the one side of door) of driver's cabin is with earth surface, driver's cabin to the right (work jibs device side) bears a heavy burden.In this case, observe the distortion of right front pillar and left front pillar, due to the contact on left front pillar and ground, it is overall bears a heavy burden, and owing to being fixed on upper rotating body in its underpart, therefore, and its entirety inclination and distortion to the right upward.In addition, right front pillar is identical with left front pillar, and its entirety is upward to the right after inclination and distortion, and wherein a part contacts with work jibs device.Therefore, the part contacted with work jibs device in right front pillar, concentrate due to stressed, deflection is very large.So compared with left front pillar, right front pillar has higher requirement to rigidity.
Be directed to this point; in patent document 1 disclosed in Japanese Unexamined Patent Publication 2011-202452 publication; disclose a kind of driver's cabin operator guards, by the part that contacts with work jibs device at the right front pillar of driver's cabin, strengthening part is installed, improves cab rigid.
But, in driver's cabin operator guards as above, because strengthening part is installed on the surface of driver's cabin outer leg, the problem of hydraulic crawler excavator appearance damage can be produced.Problem is correlated with therewith, and due to reasons such as driver take, in hydraulic crawler excavator, driver's cabin is easy to be concerned by people, and driver's cabin is the part outward appearance of hydraulic crawler excavator entirety being had to considerable influence.
On the other hand, in order to control manufacturing cost etc., there is the situation that right front pillar and left front pillar form roughly symmetric shape.In this case, usually, with be contained in right front pillar side rearward end window glass front edge portion thickness compared with, the size being connected to the left and right directions of the lead edge portion of the door of left front pillar side rearward end is larger, outside in order to the outside and door that make window glass does not protrude from the outside of each front standing pillar, and the submerged depth of side rearward end of each front standing pillar is corresponding with the size of the left and right directions of the front edge portion of door.So, when the front edge portion of window glass is contained in the side rearward end of right front pillar, due to window glass outside than right front pillar outside more in the inner part, therefore can the section of generation difference between them.So in hydraulic crawler excavator, poor in order to reduce such section, the outward appearance of driver's cabin or even the outward appearance of whole hydraulic crawler excavator have much room for improvement.
Summary of the invention
The utility model proposes in view of the foregoing, its major technique problem is to provide a kind of cabin of construction machinery, in raising a pair front standing pillar wherein one there is higher rigidity relatively while, do not destroy the outward appearance of driver's cabin, and when each front standing pillar formed roughly symmetric shape, poor by reducing the section produced between the outside of an other front standing pillar and the outside of window glass, to improve the aesthetic property of outward appearance.
According to the utility model, the driver's cabin can reaching the building machinery of above-mentioned technical task possesses following feature: comprise right front pillar, left front pillar, right back pillar and left back pillar; At least top of described right front pillar or left front pillar and the window glass at least arranged between top of described right back pillar or left back pillar; And in closed state, be connected to the door of described left front pillar or right front pillar side; Described right front pillar and left front pillar are for roughly symmetric shape and its side rearward end is submerged in inner side, the front edge portion of described window glass be contained in described right front pillar or left front pillar by the side rearward end of submerging; Described door in off position under, the lead edge portion of door be connected to described left front pillar or this right front pillar by the side rearward end of submerging; Strengthening part is folded with by between the side rearward end of submerging and the front edge portion of described window glass at described right front pillar or left front pillar.
Preferably, described strengthening part by the side rearward end of solder joints in submerge described right front pillar or left front pillar, and is bonded by adhesives with the front edge portion of described window glass; The degree of depth of the side rearward end of submerge described right front pillar or left front pillar is set to D, and the thickness of described strengthening part is set to T1, and the thickness of the adhesive linkage of described adhesives is set to T2, and the thickness of described window glass is set to T3, then D >=T1+T2+T3.
Preferably, side panel is provided with between the bottom and the bottom of described right back pillar or left back pillar of described right front pillar or left front pillar, described window glass is configured at the top of described side panel, and the lower end that described strengthening part matches from the lower edge with described window glass extends upward.
In the driver's cabin of the building machinery provided at the utility model, strengthening part is mingled with by between the side rearward end of submerging and the front edge portion of window glass due to right front pillar or left front pillar, therefore can make in a pair front standing pillar wherein one there is higher rigidity, and do not destroy its outward appearance.In addition, driver's cabin of the present utility model is when each front standing pillar roughly forms symmetric shape, poor by reducing the section produced between the outside of an other front standing pillar and the outside of window glass, can improve the aesthetic property of its outward appearance.
Accompanying drawing explanation
Fig. 1 is the lateral view of hydraulic crawler excavator, and this hydraulic crawler excavator possesses the driver's cabin formed according to the utility model;
Fig. 2 is the stereogram of the frame structure of driver's cabin shown in Fig. 1;
Fig. 3 is the sectional drawing observed from the A-A direction Fig. 2;
Fig. 4 is the sectional drawing observed from the B-B direction Fig. 2;
The stereogram of Fig. 5 for observing from the rear of the driver's cabin shown in Fig. 1;
Fig. 6 is the sectional drawing that C-C observes in direction from Fig. 5;
Fig. 7 for from the forward observation of the driver's cabin shown in Fig. 1 to stereogram;
Fig. 8 is the sectional drawing observed from the D-D direction Fig. 7.
Detailed description of the invention
Below, for the hydraulic crawler excavator as the representative of typical building machinery, with reference to accompanying drawing, the embodiment of the driver's cabin of building machinery of the present utility model is described in detail.
Be described with reference to Fig. 1.The overall hydraulic crawler excavator represented with label 2 is roughly formed by with lower part: moveable lower traveling body 4; Rotatably be equipped on the upper rotating body 6 on lower traveling body 4; Can be arranged on to free pitching the work jibs device 8 in the central front portion of upper rotating body 6.In the digging operations such as silt, work jibs device 8 carries out pitching motion, and upper rotating body 6 is carried out spinning movement relative to lower traveling body 4 and carries out the digging operations such as silt.
Work jibs device 8 is roughly formed by with lower part: in the front of upper rotating body 6, can be arranged on to free pitching the swing arm 10 of the central portion of left and right directions; Be arranged on the arm 12 of the front of swing arm 10 swingablely; The free to rotate power tool 14 being installed on the front of arm 12; Swing arm 10 can be made to carry out the swing arm hydraulic cylinder 16 of pitching motion; The arm hydraulic cylinder 18 that arm 12 swings can be made; The power tool hydraulic cylinder 20 that power tool 14 rotates can be made.
Upper rotating body 6 has the rotating frame 22 in frame structure.Rotating frame 22 is equipped with: the driver's cabin 24 taken for driver being configured at the left side of arm 10; Be configured at driver's cabin 24 rear, hold the equipment accommodating chamber 26 of the various equipment such as motor and hydraulic pump; Be configured at the rear of equipment accommodating chamber 26, carry out the counterweight 28 etc. of weight balancing relative to work jibs device 8.
Be configured with in driver's cabin 24: the driver's seat that driver takes; For operating the action bars of hydraulic crawler excavator 2; The display etc. of the display mechanical information needed for operator.In addition, the fore-and-aft direction used in the description of this manual and left and right directions, the fore-and-aft direction that the driver namely taking driver's cabin 24 in Fig. 1 observes and left and right directions.
As shown in Figure 2, the shape of driver's cabin 24 in frame structure, this frame structure is formed by with lower part: the rectangle floor 30 formed by steel plate, the multiple pillars vertically arranged along the neighboring on floor 30; The multiple upper frames be connected with the top of these pillars; The multiple underframes linked with the bottom of these pillars.
The pillar of frame structure 32 is formed by with lower part: the right front pillar 34 being positioned at floor 30 forward right side; Be positioned at the left front pillar 36 of floor 30 front left side; Be positioned at the right back pillar 38 of floor 30 right lateral side; Be positioned at the left back pillar 40 of the left rear side on floor 30; Left pillar 42 between left front pillar 36 and left back pillar 40.
Right front pillar 34 and left front pillar 36 form roughly symmetric shape by hollow profile steel pipe.As shown in Figures 3 and 4, in right front pillar 34 and left front pillar 36, each side rearward end 34a, the 36a be positioned at outside driver's cabin 24 is submerged in towards the inner side of driver's cabin 24.On the left and right directions of each side rearward end 34a, 36a, submerged depth is dimension D.On the other hand, right back pillar 38, left back pillar 40 and left pillar 42 are made up of hollow square steel pipe.In addition, each pillar is installed on rotating frame 22 by bolt.
The upper frame of frame structure 32 is formed by with lower part: the front upper frame 44 connecting the top of right front pillar 34 and the top of left front pillar 36; Connect the rear upper frame 46 on the top of right back pillar 38 and the top of left back pillar 40; Connect the upper right framework 48 on the top of right front pillar 34 and the top of right back pillar 38; Connect the upper left framework 50 on top of the top of left front pillar 36, the top of left back pillar 40 and left pillar 42.
Each upper frame 44,46,48,50 is made up of steel.Further, the front end 50a of upper end 34b, the upper end 36b of left front pillar 36 of front upper frame 44 and right front pillar 34, the front end 48a of upper right framework 48 and upper left framework 50 engages by welding.Rear upper frame 46 engages by welding with the upper end of right back pillar 38 and the upper end of left back pillar 40.In addition, the rear end of upper right framework 48 engages by welding with the upper end of right back pillar 38.The rear end of upper left framework 50 engages by welding with the upper end of left back pillar 40.
The underframe of frame structure 32 is formed by with lower part: the front underframe 52 connecting the bottom of right front pillar 34 and the bottom of left front pillar 36; Connect the rear underframe 54 of the bottom of right back pillar 38 and the bottom of left back pillar 40; Connect the bottom right framework 56 of the bottom of right front pillar 34 and the bottom of right back pillar 38; Connect the lower-left framework 58 of bottom of the bottom of left front pillar 36, the bottom of left back pillar 40 and left pillar 42.Each underframe 52,54,56,58 is made up of steel, engages, and be installed on rotating frame 22 together with floor 30 by bolt with each pillar by welding.In addition, except above-mentioned each pillar 34,36,38,40,42, except each upper frame 44,46,48,50 and each underframe 52,54,56,58, frame structure 32 can in any direction and on position, is made up of other pillar or frame material or sheet material etc.
Be described with reference to Fig. 5.Being covered by roof Material 60 above of driver's cabin 24.Roof Material 60 possesses: on front side of it, in order to ensure the visual field of the front upper of driver, and the skylight 60a be made up of light transmission sheet material; The roofing slab 60b be made up by punch process etc. of thin-walled steel plate.Skylight 60a is supported by about a pair hinge 62,62 in roofing slab 60b, and opening and closing freely, and can be opened upward.Roofing slab 60b engages by welding with rear upper frame 46, upper right framework 48 and upper left framework 50.
At the left surface of driver's cabin 24, be configured with door 64 and Left-Hand Panel 66 and left surface window glass 68.Door 64 is configured between left front pillar 36 and left pillar 42, and left pillar 42 is supported by about a pair hinge 70,70, and opening and closing freely, and can be opened outside driver's cabin 24.Driver, by shutter door 64, can come in and go out in driver's cabin 24.On door 64, eyebrow window glass 74a and bottom window glass 74b is installed on the frame parts 72 be made up by punch process etc. of thin-walled steel plate.In addition, as shown in Figure 6, the front edge portion 72a bending machining rolling of frame parts 72 is curved.In this front edge portion 72a, in order to prevent rainwater from immersing in driver's cabin 24, be configured with the inner panel 73 that elastic resin material is made.Further, under door 64 closed condition, front edge portion 72a be connected to left front pillar 36 by the side rearward end 36a submerged.Here, the pass between the submerged depth D of the size d of the left and right directions of front edge portion 72a and inner panel 73 and the side rearward end 36a of left front pillar 36 is D >=d.
Left-Hand Panel 66 is made up by punch process etc. of thin-walled steel plate, and engage by welding with the bottom of left back pillar 40, the bottom of left pillar 42 and lower-left framework 58.Left surface window glass 68 then Left-Hand Panel 66 upper end-face edge configuration above it, and to be bonded together by adhesives with upper left framework 50, Left-Hand Panel 66, left back pillar 40 and left pillar 42.
At the back side of driver's cabin 24, be configured with backplate 76.Backplate 76 is formed by punch process etc. by thin-walled steel plate, engages by welding with right back pillar 38, left back pillar 40, rear upper frame 46 and rear underframe 54.The top of plate 76 overleaf, is formed with the opening be roughly rectangle extended in the lateral direction, and the periphery back side window glass 76a along this opening is bonding by adhesives.
Be described with reference to Fig. 7.Before driver's cabin 24, be configured with window glass 78b before upper front window glass 78a and bottom.Upper front window glass 78a is installed on the track (not shown) of medial surface to the medial surface of upper right framework 48 of right front pillar 34, and the medial surface being configured at left front pillar 36 to the medial surface of upper left framework 50 track between (not shown), can be free to slide from the bottom to roof Material 60 between right front pillar 34 and left front pillar 36.Before bottom, window glass 78b and right front pillar 34, left front pillar 36 and front underframe 52 are bonded together by adhesives.
At the right flank of driver's cabin 24, be configured with right panel 80 and right flank window glass 82.Right panel 80 is made up by punch process etc. of thin-walled steel plate, engages by welding with the bottom of right front pillar 34, the bottom of right back pillar 38 and bottom right framework 56.The upper end-face edge of right flank window glass 82 then right panel 80 is configured at above it, and with upper right framework 48, right panel 80, right front pillar 34 and right back pillar 38 are bonded together by adhesives.Here, as shown in Figure 8, the front edge portion 82a of right flank window glass 82 be contained in right front pillar 34 by the side rearward end 34a submerged, between the side rearward end 34a and the front edge portion 82a of right flank window glass 82 of right front pillar 34, be mingled with strengthening part 84.
The rectangular steel plates that strengthening part 84 is T1 by gauge is made, and from the lower end that the lower edge with right flank window glass 82 matches, the upper end 34b of front standing pillar 34 extends to the right.In addition, strengthening part 84 engages by welding with the side rearward end 34a of right front pillar 34, is bonded together by adhesives with the front edge portion 82a of right flank window glass 82.Here, the relation between the thickness T2 of adhesive linkage L of the submerged depth D of the side rearward end 34a of right front pillar 34, the thickness T1 of strengthening part 84, adhesives and the thickness T3 of left surface window glass 68 is D >=T1+T2+T3, especially preferably D=T1+T2+T3.
As mentioned above, the structure of the driver's cabin 24 of the hydraulic crawler excavator 2 shown in Fig. 1 to Fig. 8 is described.In the driver's cabin 24 involved by the utility model, right front pillar 34 by between the side rearward end 34a that submerges and the front edge portion 82a of right flank window glass 82, owing to being folded with strengthening part 84, the rigidity of right front pillar 34 can be made higher than the rigidity of left front pillar 36, and do not destroy its outward appearance.
In addition, driver's cabin 24 of the present utility model, even if when each front standing pillar 34,36 formed roughly symmetric shape, also can be poor by reducing the section produced between the outside of right front pillar 34 and the outside of right side window glass 82, improve the aesthetic property of its outward appearance.And because strengthening part 84 does not protrude from right front pillar 34 side of the external surface being positioned at driver's cabin 24, therefore, installing strengthening part 84 can not affect the visual field.
In addition, in the present embodiment, strengthening part 84 is mingled with when driver's cabin 24 is configured at the left side of upper rotating body 22, between the side rearward end 34a of right front the pillar 34 and front edge portion 82a of right flank window glass 82, for this situation, below be illustrated, but driver's cabin of the present utility model is not limited thereto.That is, when driver's cabin is configured at the right side of upper rotating body, compared with right front pillar, when the requirement of left front pillar to rigidity is higher, between the side rearward end of left front pillar and the front edge portion of left surface window glass, also strengthening part can be mingled with.In addition, driver's cabin of the present utility model is not only applicable to the driver's cabin of hydraulic crawler excavator, is applicable to the driver's cabin of other building machineries such as such as crawler crane yet.
Claims (3)
1. a driver's cabin for building machinery, is characterized in that, has: right front pillar, left front pillar, right back pillar and left back pillar; At least top of described right front pillar or left front pillar and the window glass at least arranged between top of described right back pillar or left back pillar; And in closed state, be connected to the door of described left front pillar or described right front pillar side; Described right front pillar and described left front pillar are symmetric shape and its side rearward end is submerged in inner side;
The front edge portion of described window glass is contained in described right front pillar or left front pillar by the side rearward end of submerging, and under described door closure state, the lead edge portion of described door is connected to described right front pillar or left front pillar by the side rearward end of submerging;
Strengthening part is folded with by between the side rearward end of submerging and the front edge portion of described window glass at described right front pillar or left front pillar.
2. the driver's cabin of building machinery according to claim 1, is characterized in that, described strengthening part by the side rearward end of solder joints in submerge described right front pillar or left front pillar, and is bonded by adhesives with the front edge portion of described window glass;
The degree of depth of the side rearward end of submerge described right front pillar or left front pillar is set to D, and the thickness of described strengthening part is set to T1, and the thickness of the adhesive linkage of described adhesives is set to T2, and the thickness of described window glass is set to T3, then D >=T1+T2+T3.
3. the driver's cabin of building machinery according to claim 1 and 2, it is characterized in that, side panel is configured with between the bottom of described right front pillar or left front pillar and the bottom of described right back pillar or left back pillar, described window glass is configured at the top of described side panel, and the lower end that described strengthening part matches from the lower edge with described window glass extends upward.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014106361A JP2015221973A (en) | 2014-05-22 | 2014-05-22 | Cab of construction machine |
| JP2014-106361 | 2014-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204781067U true CN204781067U (en) | 2015-11-18 |
Family
ID=54521149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520282613.9U Expired - Fee Related CN204781067U (en) | 2014-05-22 | 2015-05-05 | Cabin of construction machinery |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015221973A (en) |
| CN (1) | CN204781067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469866A (en) * | 2018-07-31 | 2021-03-09 | 株式会社小松制作所 | Working machine |
| CN112856108A (en) * | 2021-01-11 | 2021-05-28 | 曼祥(福建)科技发展有限公司 | Engineering machine tool covering piece frame structure convenient to install |
| CN113727906A (en) * | 2019-06-19 | 2021-11-30 | 株式会社小松制作所 | Cab and work vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900004621A1 (en) * | 2019-03-27 | 2020-09-27 | Italcab S P A | Anti-overturning structure for cabins |
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| JP2860903B2 (en) * | 1994-04-16 | 1999-02-24 | 日野自動車工業株式会社 | Truck cab structure |
| JP3734070B2 (en) * | 1998-05-15 | 2006-01-11 | 株式会社小松製作所 | Construction machine cab ceiling panel material and method of using the cab ceiling panel material |
| JP2000198469A (en) * | 1998-10-31 | 2000-07-18 | Press Kogyo Co Ltd | Cab for construction equipment using cast iron joint |
| JP2000144807A (en) * | 1998-11-04 | 2000-05-26 | Yutani Heavy Ind Ltd | Molding glass for cabin of work machine |
| JP4420368B2 (en) * | 2000-10-04 | 2010-02-24 | プレス工業株式会社 | Construction machinery cab |
| JP2003039946A (en) * | 2001-07-31 | 2003-02-13 | Press Kogyo Co Ltd | Structure of fixed sash window for construction machine |
| JP2004106824A (en) * | 2002-08-30 | 2004-04-08 | Komatsu Ltd | Cab structure for work vehicle |
| JP2004090833A (en) * | 2002-09-02 | 2004-03-25 | Hitachi Constr Mach Co Ltd | Cab for construction machine |
| JP4201126B2 (en) * | 2003-04-10 | 2008-12-24 | 株式会社小松製作所 | Construction machinery cab |
| KR100812273B1 (en) * | 2003-09-09 | 2008-03-13 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Cab of construction machinery |
| JP2005231562A (en) * | 2004-02-20 | 2005-09-02 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Cab panel structure of construction machine |
| JP4762732B2 (en) * | 2006-01-24 | 2011-08-31 | 本田技研工業株式会社 | Windshield structure for vehicle |
| JP5604750B2 (en) * | 2010-03-26 | 2014-10-15 | キャタピラー エス エー アール エル | Work machine cab protection structure |
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2014
- 2014-05-22 JP JP2014106361A patent/JP2015221973A/en active Pending
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2015
- 2015-05-05 CN CN201520282613.9U patent/CN204781067U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469866A (en) * | 2018-07-31 | 2021-03-09 | 株式会社小松制作所 | Working machine |
| US11692330B2 (en) | 2018-07-31 | 2023-07-04 | Komatsu Ltd. | Work machine |
| CN113727906A (en) * | 2019-06-19 | 2021-11-30 | 株式会社小松制作所 | Cab and work vehicle |
| CN113727906B (en) * | 2019-06-19 | 2023-09-29 | 株式会社小松制作所 | Cab and work vehicle |
| US11879230B2 (en) | 2019-06-19 | 2024-01-23 | Komatsu Ltd. | Cab and work vehicle |
| CN112856108A (en) * | 2021-01-11 | 2021-05-28 | 曼祥(福建)科技发展有限公司 | Engineering machine tool covering piece frame structure convenient to install |
| CN112856108B (en) * | 2021-01-11 | 2022-09-13 | 长沙众城机械有限公司 | Engineering machine tool covering piece frame structure convenient to install |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015221973A (en) | 2015-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190505 |