WO2011148945A1 - 建設機械 - Google Patents
建設機械 Download PDFInfo
- Publication number
- WO2011148945A1 WO2011148945A1 PCT/JP2011/061885 JP2011061885W WO2011148945A1 WO 2011148945 A1 WO2011148945 A1 WO 2011148945A1 JP 2011061885 W JP2011061885 W JP 2011061885W WO 2011148945 A1 WO2011148945 A1 WO 2011148945A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- door
- cab
- driver
- construction machine
- closed
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0617—Drivers' cabs for tractors or off-the-road vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
- E02F3/325—Backhoes of the miniature type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
Definitions
- the present invention relates to a construction machine such as a mini excavator provided with a cab having a door capable of opening and closing the entrance.
- the hydraulic excavator is provided on a swing body, a work device attached to the swing body, a cab provided on the swing body and having a door capable of opening and closing the entrance and exit, and provided on the entrance and exit of the cab. And a step for easily getting on and off the room.
- a driver's seat is arranged in the driver's cab, and a floor board is arranged below the driver's seat and in front of it.
- This floor board consists of a flat part arranged on the front side of the driver's seat, and a step part arranged continuously on the flat part and arranged on the entrance / exit side, and this step part constitutes the steps described above. Yes.
- the stepped portion constituting the step is located inside the door.
- the stepped portions constituting the steps are arranged inside the cab.
- the shape of the stepped portion described above must be set small in order to secure the suspension in the cab. In connection with this, it may happen that boarding / alighting to / from the cab performed through the stepped portion, that is, the step, cannot be easily performed.
- the shape of the stepped part that constitutes the steps arranged in the cab is extended to the door side.
- the outer shape of the cab of the cab becomes a shape in which the columns of the cab arranged on the working device side, that is, the front pillars protrude outward. If it becomes such a shape, a cab will protrude outside the turning radius of the turning body which is the dimension below the vehicle width originally requested
- the turning radius of the turning body is larger than the originally required turning radius, which is restricted by the work environment and hinders various operations performed through the working device of a small construction machine such as the mini excavator. May result.
- the present invention has been made from the actual state in the above-described prior art, and an object thereof is to dispose the step in the cab, and the step size can be increased without increasing the turning radius. To provide construction machinery.
- the present invention provides a swivel body, a working device attached to the swivel body, a cab having a door provided on the swivel body and capable of opening and closing the entrance and exit, and the cab. And a step of facilitating getting on and off the operator's cab in a part of the step provided with a projecting portion protruding outward from an opening surface forming the entrance and exit. A part of the door is provided with a convex portion that covers the projection of the step when the door is closed.
- the protruding portion that protrudes outward from the opening surface that forms the entrance / exit of the cab is provided only in a part of the step, the outer shell shape of the cab is not changed. It becomes possible to provide a protrusion in the step. That is, the step size can be increased without increasing the turning radius. Moreover, since the protrusion provided in the step is covered with the protrusion provided in a part of the door when the door is closed, the entire step including the protrusion can be positioned in the cab. Therefore, even when the construction machine is arranged in a cold region where snow is generated, it is possible to prevent the snow from being frozen in the step.
- the floor of the driver's cab includes a flat portion disposed on the front side of the driver's seat, and a stepped portion that is connected to the flat portion and disposed on the entrance / exit side.
- a flange portion that forms the same plane as the step portion of the floor is provided in the cab so as to be connected to the step portion, and the step includes the floor step portion and the flange portion. It is characterized in that the above-mentioned protrusion is provided in
- the cab is provided so as to sandwich the entrance / exit, and a front pillar disposed on the working device side and a door mounting pillar on which the door is rotatably attached.
- the front pillar is provided with a recess that accommodates the side end of the door when the door is closed.
- the side end portion of the door when the door is closed, the side end portion of the door is accommodated in the recessed portion of the front pillar, so that the side end portion of the door may be disposed outside the front pillar. It contributes to maintaining the originally required turning radius.
- the construction machine is a mini excavator, and is formed at an end of the flange portion on the front pillar side so as to approach the opening surface as the front pillar is approached.
- the bent portion is opposed to the bent portion at the end of the convex portion of the door that is located when the door is closed.
- the bent portion of the convex portion of the door forms a relief portion that prevents interference with the exterior cover of the swivel body when the door is opened. .
- the bent portion of the convex portion of the door forms an escape portion that prevents interference with the exterior cover forming the revolving body. Damage can be suppressed.
- a protrusion that protrudes outward from the opening surface that forms the entrance is provided in a part of the step, and a protrusion that covers the protrusion of the step in a state where the door is closed is provided in a part of the door. Since the portion is provided, the step can be provided in the step without changing the outer shell shape of the cab. That is, the step size can be increased without increasing the turning radius. Thereby, while turning a turning body and driving a working device, desired work can be implemented without trouble, and boarding / alighting to a driver's cab can be performed more easily than before.
- the protruding portion of the flange portion is covered by the convex portion provided on the door when the door is closed, even when the construction machine is arranged in a cold region where snow accumulation occurs, it is possible to prevent the snow accumulation from being frozen in the step. be able to. Therefore, the door can be prevented from being opened due to frozen snow, and the door can be smoothly opened and closed.
- FIG. 3 is a plan view showing a cross-section of the main part in a state where the door of the cab shown in FIG. 2 is opened.
- FIG. 1 is a side view showing a mini excavator constituting one embodiment of a construction machine according to the present invention
- FIG. 2 is a perspective view showing a cab provided in the mini excavator shown in FIG.
- the construction machine includes a mini excavator that is one of small-sized construction machines.
- This mini excavator includes a traveling body 1 having a pair of left and right crawler belts 1a, a revolving body 2 disposed on the traveling body 1, and a work device 3 attached to the revolving body 2 so as to be rotatable in the vertical direction.
- the work device 3 includes a boom 3a attached to the swing body 2, an arm 3b attached to the tip of the boom 3a, and a bucket 3c attached to the tip of the arm 3b.
- a driver's cab 6 having a door 5 that can accommodate a driver's seat 4 and that can be opened and closed is disposed.
- the revolving body 2 is provided with a machine room 9 in which an engine 7, a pump (not shown) and the like are accommodated and the outside is covered with an exterior cover 8, and a counterweight 10 that secures a weight balance.
- FIG. 3 is a perspective view of a main part showing a state in which the door of the cab shown in FIG. 2 is closed
- FIG. 4 is a plan view showing the main part in a state where the door of the cab shown in FIG. 2 is closed
- 5 is a perspective view of a main part showing a state in which the door of the cab shown in FIG. 2 is opened
- FIG. 6 is a plan view showing a cross section of the main part in a state where the door of the cab shown in FIG. 2 is opened.
- the mini excavator according to the present embodiment has a configuration in which a protruding portion 12 a that protrudes outward from the opening surface 16 that forms the entrance 20 of the cab 6 is provided in a part of the step that makes the cab 6 easy to move up and down. It is.
- the floor 11 of the cab 6 has a flat portion 11a disposed on the front side of the driver's seat 4 and the flat portion 11a connected to the flat portion 11a.
- a flange portion 12 that is provided at a low position and includes a step portion 11b arranged on the entrance / exit side, and that forms the same plane as the step portion 11b of the floor 11 is connected to the step portion 11b.
- the step described above is composed of the step portion 11b and the flange portion 12 of the floor 11, and the flange portion 12 is provided with a protruding portion 12a protruding outward from the opening surface 15 forming the entrance 20 shown in FIG. .
- the flange portion 12 is detachably fixed to a frame forming the cab 6 by a pair of bolts 14.
- the end face of the main part of the projecting part 12a provided on the flange part 12 is formed, for example, in a linear shape in a horizontal plane.
- the cab 6 is provided so as to sandwich the entrance / exit, and a pillar disposed on the work device 3 side, that is, the front pillar 15 and the door 5 rotate via a hinge 18. It has a pillar that can be attached, that is, a door attachment pillar 13. As shown in FIG. 4, a bent portion 12 a 1 formed at the end of the protruding portion 12 a of the flange portion 12 on the front pillar 15 side so as to approach the opening surface 16 that forms the entrance / exit 20 as the front pillar 15 is approached. Is provided.
- a convex portion 5a is provided on a part of the lower end portion of the door 5 so as to cover the protruding portion 12a provided on the flange portion 12 constituting the step when the door 5 is closed. It is.
- the main part of the convex part 5a is formed into a flat surface according to the linear shape of the end face of the main part of the protruding part 12a of the flange part 12.
- This convex part 5a is integrally provided by press work at the time of manufacture of the door 5, for example.
- the front pillar 15 is provided with a recess 15 a that accommodates the side end 5 b of the door 5 when the door 5 is closed.
- the protrusion 12 a is bent when the door 5 is closed at the end of the convex portion 5 a of the door 5 that is located when the door 5 is closed, on the side close to the front pillar 15.
- a bent portion 5a1 disposed to face the portion 12a1 is provided.
- the bent portion 5 a 1 forms an escape portion that prevents interference with the exterior cover 8 of the revolving body 2 when the door 5 is opened.
- the basic outer shell shape of the cab 6 is not changed, and accordingly, the turning radius 17 shown in FIGS. 4 and 6 is the same turning radius as that of the conventional mini excavator, that is, the traveling body. It is set so as to maintain a dimension equal to or smaller than the vehicle width defined by one pair of crawler belts 1a. Further, as shown in FIG. 6, the position of the side end portion 5 b when the door 5 is opened is set so as to be positioned on, for example, a substantially turning radius 17.
- the door 5 when the operator sits on the driver's seat 4 to perform work, the door 5 is opened and the step portion 11b of the floor 11 and the step 11b as shown in FIGS. It is only necessary to go up to the flat portion 11a of the floor 11 and sit on the driver's seat 4 by stepping on the step composed of the flange portion 12 having the protruding portion 12a.
- the work device 3 shown in FIG. 1 is driven, for example, to perform a desired work such as earth and sand excavation work. Can be implemented.
- the door 5 When the door 5 is fully opened, the door 5 is disposed so as to face the exterior cover 8 of the revolving structure 2 as shown in FIG. During work, the door 5 is closed as necessary.
- the operator When the operator finishes the work, the operator leaves the driver's seat 4, gets down from the flat part 11 a of the floor 11 to the step composed of the step part 11 b and the flange part 12, and then gets down to the grounding surface of the mini excavator.
- the door 5 may be closed as shown in FIGS.
- the protruding portion 12 a of the flange portion 12 is covered by the convex portion 5 a of the door 5, and the side end portion 5 b of the door 5 is accommodated in the recess portion 15 a of the front pillar 15.
- the end surface of the main part of the projecting part 12a of the flange part 12 is formed in a straight line shape in the horizontal plane, and the main part of the convex part 5a of the door 5 is formed in a flat surface shape.
- the end face of the main part of the projecting part 12a of the part 12 may be formed in a curved shape in a horizontal plane or a shape having an uneven part, and the convex part 5a of the door 5 has a curved surface in the horizontal plane. Alternatively, it may be formed to have a curved surface in the vertical plane.
- These protrusions 12a and protrusions 5a can be formed in various shapes.
- the protruding portion 12 a that protrudes outward from the opening surface 15 that forms the entrance 20 of the cab 6 is formed on the flange portion 12 that constitutes the step. Since it is provided only in a part, it is possible to provide the protruding portion 12a in the step without changing the outer shell shape of the cab 6. That is, the step size can be increased without increasing the turning radius 17. Thereby, while turning the revolving body 2 and driving the working device 3, it is possible to perform a desired work without any trouble, and it is possible to easily get on and off the cab 6.
- the protruding portion 12a of the flange portion 12 is covered by the convex portion 5a provided on the door 5, so that the entire step including the protruding portion 12a can be positioned in the cab 6. . Therefore, even when the mini excavator is disposed in a cold region where snow is generated, it is possible to prevent the snow from being frozen in the step including the protruding portion 12a. Therefore, the door 5 cannot be opened due to frozen snow accumulation, and the door 5 can be smoothly opened and closed.
- the operator cab 6 having the selected combination of the flange portion 12 and the door 5 can be easily realized without causing a design change in the basic structure of the operator cab 6.
- the side end 5 a of the door 5 is accommodated in the recess 15 a of the front pillar 15, so that the side end 5 b of the door 5 is more than the front pillar 15. It does not lie outside and contributes to maintaining the originally required turning radius 17.
- the bent portion 5 a 1 of the convex portion 5 a of the door 5 forms an escape portion that prevents interference with the exterior cover 8 that forms the revolving body 2. Damage to the door 5 and damage to the exterior cover 8 can be suppressed, and a highly reliable mini excavator can be realized.
- the construction machine which concerns on this invention may be a hydraulic excavator larger than a mini excavator, and also has a driver's cab which has a door which can be opened and closed on a turning body. As long as it is provided in the construction machine, it may be a construction machine different from the hydraulic excavator.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Component Parts Of Construction Machinery (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
Description
2 旋回体
3 作業装置
4 運転席
5 ドア
5a 凸部
5a1 屈曲部
5b 側端部
6 運転室
8 外装カバー
11 床
11a 平坦部
11b 段差部
12 フランジ部
12a 突出部
12a1 屈曲部
13 ドア取り付けピラー
14 ボルト
15 前側ピラー
15a 窪み部
16 開口面
17 旋回半径
20 乗降口
Claims (4)
- 旋回体と、この旋回体に取り付けられる作業装置と、上記旋回体上に設けられ、乗降口を開閉可能なドアを有する運転室と、この運転室の上記乗降口に設けられ、運転室に対する乗降を容易にさせるステップとを備えた建設機械において、
上記ステップの一部に、上記乗降口を形成する開口面よりも外側に突出する突出部を設け、
上記ドアの一部に、このドアを閉めた状態にあって上記ステップの上記突出部を覆う凸部を設けたことを特徴とする建設機械。 - 請求項1に記載の建設機械において、
上記運転室の床が、運転席の前側に配置された平坦部と、この平坦部に連設されて上記乗降口側に配置された段差部とを含み、
上記運転室内に、上記床の上記段差部と同一平面を形成するフランジ部を上記段差部に連設させて設け、
上記ステップが、上記床の段差部と上記フランジ部から成り、
上記フランジ部に上記突出部を設けたことを特徴とする建設機械。 - 請求項2に記載の建設機械において、
上記運転室は、互いに上記乗降口を挟むように設けられ、上記作業装置側に配置される前側ピラーと、上記ドアが回動可能に取り付けられるドア取り付けピラーとを有し、
上記前側ピラーに、上記ドアを閉めた状態にあって上記ドアの側端部を収容させる窪み部を設けたことを特徴とする建設機械。 - 請求項3に記載の建設機械において、
当該建設機械がミニショベルから成り、
上記フランジ部の上記突出部における上記前側ピラー側の端部に、上記前側ピラーに近づくに従って上記開口面に近づくように形成される屈曲部を設け、
上記ドアを閉めた際に位置する上記ドアの上記凸部における上記前側ピラーに近い側の端部に、上記ドアを閉めた際に上記突出部の上記屈曲部に対向して配置される屈曲部を設け、上記ドアの上記凸部の上記屈曲部は、上記ドアを開いた際に上記旋回体の外装カバーとの干渉を防ぐ逃げ部を形成することを特徴とする建設機械。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/698,931 US9033086B2 (en) | 2010-05-24 | 2011-05-24 | Construction machinery |
KR1020127033487A KR101778827B1 (ko) | 2010-05-24 | 2011-05-24 | 건설 기계 |
EP11786644.2A EP2565332B1 (en) | 2010-05-24 | 2011-05-24 | Construction machinery |
CN201180025679.4A CN102906343B (zh) | 2010-05-24 | 2011-05-24 | 工程机械 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010118565A JP5054802B2 (ja) | 2010-05-24 | 2010-05-24 | 建設機械 |
JP2010-118565 | 2010-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011148945A1 true WO2011148945A1 (ja) | 2011-12-01 |
Family
ID=45003934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/061885 WO2011148945A1 (ja) | 2010-05-24 | 2011-05-24 | 建設機械 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9033086B2 (ja) |
EP (1) | EP2565332B1 (ja) |
JP (1) | JP5054802B2 (ja) |
KR (1) | KR101778827B1 (ja) |
CN (1) | CN102906343B (ja) |
WO (1) | WO2011148945A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5706110B2 (ja) * | 2010-07-29 | 2015-04-22 | プレス工業株式会社 | 建設機械のキャブフレーム構造 |
JP5841504B2 (ja) * | 2012-08-06 | 2016-01-13 | 株式会社クボタ | 旋回作業機 |
US11072517B2 (en) | 2019-04-11 | 2021-07-27 | Kundel Industries, Inc. | Jib crane with tension frame and compression support |
Citations (6)
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JPH01175490U (ja) * | 1988-06-01 | 1989-12-13 | ||
JP2002294754A (ja) * | 2001-03-28 | 2002-10-09 | Komatsu Ltd | 旋回式建設機械 |
JP2005067533A (ja) * | 2003-08-27 | 2005-03-17 | Shin Caterpillar Mitsubishi Ltd | ホイール式建設機械 |
JP2005226307A (ja) | 2004-02-12 | 2005-08-25 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2007162313A (ja) * | 2005-12-13 | 2007-06-28 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2010007369A (ja) * | 2008-06-27 | 2010-01-14 | Hitachi Constr Mach Co Ltd | 建設機械 |
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US3802530A (en) * | 1972-04-26 | 1974-04-09 | Deere & Co | Tractor cab |
JPH07106259B2 (ja) | 1993-01-25 | 1995-11-15 | 株式会社エース電研 | パチンコゲーム機 |
JPH08291538A (ja) * | 1995-04-21 | 1996-11-05 | Yutani Heavy Ind Ltd | 建設機械の車体構造 |
US6170588B1 (en) * | 1997-06-03 | 2001-01-09 | Hitachi Construction Machinery Co., Ltd. | Revolving construction machine |
JP3589575B2 (ja) * | 1997-09-30 | 2004-11-17 | コベルコ建機株式会社 | 建設機械の上部旋回体 |
KR101059289B1 (ko) * | 2004-06-07 | 2011-08-24 | 히다찌 겐끼 가부시키가이샤 | 건설 기계 |
US8944493B2 (en) * | 2011-09-09 | 2015-02-03 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
-
2010
- 2010-05-24 JP JP2010118565A patent/JP5054802B2/ja active Active
-
2011
- 2011-05-24 CN CN201180025679.4A patent/CN102906343B/zh active Active
- 2011-05-24 US US13/698,931 patent/US9033086B2/en active Active
- 2011-05-24 WO PCT/JP2011/061885 patent/WO2011148945A1/ja active Application Filing
- 2011-05-24 KR KR1020127033487A patent/KR101778827B1/ko active IP Right Grant
- 2011-05-24 EP EP11786644.2A patent/EP2565332B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01175490U (ja) * | 1988-06-01 | 1989-12-13 | ||
JP2002294754A (ja) * | 2001-03-28 | 2002-10-09 | Komatsu Ltd | 旋回式建設機械 |
JP2005067533A (ja) * | 2003-08-27 | 2005-03-17 | Shin Caterpillar Mitsubishi Ltd | ホイール式建設機械 |
JP2005226307A (ja) | 2004-02-12 | 2005-08-25 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2007162313A (ja) * | 2005-12-13 | 2007-06-28 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2010007369A (ja) * | 2008-06-27 | 2010-01-14 | Hitachi Constr Mach Co Ltd | 建設機械 |
Also Published As
Publication number | Publication date |
---|---|
US9033086B2 (en) | 2015-05-19 |
EP2565332B1 (en) | 2017-08-23 |
EP2565332A1 (en) | 2013-03-06 |
EP2565332A4 (en) | 2015-07-22 |
JP2011246889A (ja) | 2011-12-08 |
CN102906343B (zh) | 2015-04-01 |
JP5054802B2 (ja) | 2012-10-24 |
KR20130122529A (ko) | 2013-11-07 |
CN102906343A (zh) | 2013-01-30 |
US20130058747A1 (en) | 2013-03-07 |
KR101778827B1 (ko) | 2017-09-14 |
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