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US3608756A - Mechanical excavator or other earth working machine - Google Patents

Mechanical excavator or other earth working machine Download PDF

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Publication number
US3608756A
US3608756A US830441A US3608756DA US3608756A US 3608756 A US3608756 A US 3608756A US 830441 A US830441 A US 830441A US 3608756D A US3608756D A US 3608756DA US 3608756 A US3608756 A US 3608756A
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Prior art keywords
earth
turret
stabilizing
machine
chassis
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Expired - Lifetime
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US830441A
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Gabriel L Guinot
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Poclain SA
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Poclain SA
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    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°

Definitions

  • This invention consists in providing a mechanig g cal excavator or other earth working machine having a rotary [52] U.S.Cl 214/138, implement carrying turret with stabilizing legs mounted on a 7 37/103, 212/145 support which is rotatably mounted on the machine about an [51] Int.
  • MECHANICAL EXCAVATOR OR OTHER EARTH WORKING MACHINE stabilize the machine while earth-working operations are being carried out.
  • the stabilizing legs, or other stabilizing means are positioned on the machine so as to provide optimum effect while the earth working machine is in use but this sometimes presents problems when the machine has to be driven from one side to another along public highways, especially when such stabilizing means are positioned at the sides of the machine.
  • the object of the present invention is to provide an earthworking machine with stabilizing means which are so positioned and arranged as to provide optimum stabilizing effect when the machine is in use without however constituting a source of danger or contravening traffic regulations when the machine is being driven along a public highway.
  • the earth-working machine comprises an endless track or wheeled chassis a turret rotatably mounted on said chassis and carrying an earth-working implement and stabilizing means mounted on said chassis wherein said stabilizing means comprises a rotary support rotatably mounted on said chassis about an axis coaxial with the turret axis, stabilizing legs mounted on said support and each provided at its outer free end with an anchoring shoe having a length not greater than the overall width of the machine.
  • FIG. 1 is a diagrammatic side elevation of an earth-working machine, in the form of a mechanical excavator, according to the invention
  • FIG. 2 is a perspective view illustrating the arrangement for mounting the stabilizing means on the machine chassis
  • FIG. 3 is a plan view of FIG. 2,
  • FIG. 4 is a part sectional side elevation of a means on the machine chassis
  • FIG. 5 is a modified arrangement for mounting the rotary turret and the stabilizing means on the machine chassis and for locking the turret and stabilizing means in position.
  • the rotary turret carries means, indicated generally at 4, for carrying out earth-working operation, said means comprising a jib 5 articulated at 6 to said turret and having pivoted to its outer free end at 9 a lever 8 to which is pivotally mounted an earthworking implement in the form of a scoop 11. Operation of the jib 5, lever 8 and scoop 11 is effected in known manner by hydraulic rams 7, and 12 respectively.
  • the earth-working machine is provided with stabilizing means for stabilizing said machine while carrying out earth-working operations, said stabilizing means comprising a rotary support 13 to which two stabilizing legs l4, 15 are pivotally mounted at 16 and 17 respectively on diametrically opposite sides of said support 13.
  • Each of said stabilizing legs 14, I5 is provided at its outer free end with an anchoring shoe 21 and 22 respectively and said stabilizing legs are pivotable by rams l8 and 19 respectively into an operative position, in which the anchoring shoes are in contact with the ground, or in an inoperative position, in which said anchoring shoes are out of contact with the ground.
  • the rotary support 13 is rotatably mounted on the chassis I, between said chassis and the rotary turret 3, about a vertical axis coaxial with the turret axis.
  • the rotary support 13 can be locked in one of at least two positions by locking means 20 which comprises a locking pin which passes through a perforated lug or projection on said rotary support 13 and engages in a hole in a fixed part of the chassis l as indicated in FIG. 4 and 5.
  • the locking means 20 are so arranged that said I rotary support 13 can be locked in one position in which the stabilizing legs project fore and aft of the machine substantially parallel to the longitudinal axis of the machine i.e., in the inoperative positions of said stabilizing legs (FIG 1), or in a second positions in which the stabilizing legs project outwards from the lateral sides of the vertical at right angles to the longitudinal axis of the vertical i.e., in the operative positions of the stabilizing legs (FIG. 2).
  • the mounting of the rotary turret 3 and the rotary support 13 on the chassis I of the machine may be carried out in any suitable manner, for example as illustrated diagrammatically in FIG. 4 or FIG. 5.
  • the rotary support 13 is mounted on a ring of roller bearings 24 carried on the chassis l and said support 13 carries on its upper part a second ring of roller bearings 23 upon which the turret 3 is rotatably mounted.
  • a crown wheel 25 Around the periphery of the ring of the roller bearings 23 is a crown wheel 25 with which meshes a pinion 27 fixed on the driving shaft of a motor 26 carried by the turret and by which said turret is rotated.
  • the rotary turret 3 and the rotary support 13 are rotatably mounted on rings of rollers bearings 28and 29respectively in a similar manner to that of FIG. 4 except that in this embodiment the ring of roller bearings 28 on which the turret is rotatable is not carried by the rotary support 13, as in FIG. 4, but on n extension (not shown) of the chassis which passes up through the rotary support 13.
  • the ring of roller bearings 28 on which the turret is rotatable is not carried by the rotary support 13, as in FIG. 4, but on n extension (not shown) of the chassis which passes up through the rotary support 13.
  • the turret 3 is rotated by a motor 26 through a pinion 27 and crown wheel 25 but in this embodiment locking means 30, similar to the locking means 20 above described, are provided for locking the turret 3 and the rotary support 13 together so that said turret and rotary support can be rotated simultaneously by the motor 26.
  • the locking means 20,30 are released.
  • the rotary support is rotated to position the stabilizing legs 14,15 so that they project laterally from each side of the machine and the rams 17,18 are operated to move the anchoring shoes 21 and 22 into contact with the ground as shown in FIG. 2.
  • the anchoring shoes are of such a size as to engage the ground over as great an area as possible to enhance stabilization, but their length must not be greater than the overall width of the machine so as to ensure that they do not project beyond the sides of the machine when it is being driven along a public highway.
  • the locking means 20 is first released so that the support 13 can rotate relative to the chassis l.
  • the earth-working implement is lowered to the ground so as to immobilize the turret 3 relative to the support 13.
  • the motor 26 is then operated so that the support 13 is rotated through pinion 27 and crown wheel to bring the stabilizing legs into operative position.
  • the locking means 20 is then again locked and the stabilizing legs are lowered to bring their anchoring shoes into contact with the ground whereupon the earth-working implement is raised so that the turret 3 can be rotated relative to the chassis by means of the motor 26.
  • the earth-working machine may be provided with a wheeled chassis instead of an endless track chassis as shown.
  • An earth-working machine such as a mechanical excavator, comprising an endless track or wheeled chassis, a turret rotatably mounted on said chassis and carrying an earth-working implement and stabilizing means mounted on said chassis, said stabilizing means comprising a rotary support rotatably mounted on said chassis about an axis coaxial with the turret axis, stabilizing legs mounted on said support and each provided at its outer free end with an anchoring shoe having a length not greater than the overall width of the machine.
  • An earth-working machine according to claim 2 wherein means are provided for locking said rotary support and said turret in their operative or inoperative position.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Earth Drilling (AREA)

Abstract

This invention consists in providing a mechanical excavator or other earth working machine having a rotary implement carrying turret with stabilizing legs mounted on a support which is rotatably mounted on the machine about an axis coaxial with the turret so that said stabilizing legs can be swung to an inoperative position fore and aft of the machine or an operative position in which they extend laterally of the machine.

Description

United States Patent v [111 3,608,756
[72] inventor Gabriel Guinot 5 R f c Cited 21 A I No gg ffi UNITED STATES PATENTS v if Jun;4 1969 1,653,247 12/1927 Zollinger 214/85 (A) X' [45] Patented septzk, 1971 2,961,102 11/1960 Pitman 212/145 X [73] Assignee Societe Anonyme Poclain FOREIGN PATENTS Le Plessis-Belleville, Oise, France 615,151 1 l/ 1932 Germany 212/145 2% Pnomy g 1968 7 Primary ExaminerGerald M. Forlenza E 223 Assistant Examiner Frank E. Werner Attorney-Mason, Fenwick & Lawrence [54] MECHANICAL EXCAVATOR OR OTHER EARTH 5 ABSTRACT: This invention consists in providing a mechanig g cal excavator or other earth working machine having a rotary [52] U.S.Cl 214/138, implement carrying turret with stabilizing legs mounted on a 7 37/103, 212/145 support which is rotatably mounted on the machine about an [51] Int. Cl B66c 23/78 axis coaxial with the turret so that said stabilizing legs can be [50] Field of Search 214/138, swung to an inoperative position fore and aft of the machine 132-137; 212/145; 37/103, 117.5; 280/805; or an operative position in which they extend laterally of the 188/7 machine.
PATENIEU SEE-2 8 Ian SHEET 1 BF 2 Inventor Gasman. L. GLHNQT Attorney:
Wasm
MECHANICAL EXCAVATOR OR OTHER EARTH WORKING MACHINE stabilize the machine while earth-working operations are being carried out. In the known arrangement the stabilizing legs, or other stabilizing means, are positioned on the machine so as to provide optimum effect while the earth working machine is in use but this sometimes presents problems when the machine has to be driven from one side to another along public highways, especially when such stabilizing means are positioned at the sides of the machine.
The object of the present invention is to provide an earthworking machine with stabilizing means which are so positioned and arranged as to provide optimum stabilizing effect when the machine is in use without however constituting a source of danger or contravening traffic regulations when the machine is being driven along a public highway.
With this object in view the earth-working machine according to the invention comprises an endless track or wheeled chassis a turret rotatably mounted on said chassis and carrying an earth-working implement and stabilizing means mounted on said chassis wherein said stabilizing means comprises a rotary support rotatably mounted on said chassis about an axis coaxial with the turret axis, stabilizing legs mounted on said support and each provided at its outer free end with an anchoring shoe having a length not greater than the overall width of the machine.
In order that the invention may be more clearly understood one particular embodiment thereof will now be described, by way of example, with reference to the accompanying drawings in which:
FIG. 1 is a diagrammatic side elevation of an earth-working machine, in the form of a mechanical excavator, according to the invention,
FIG. 2 is a perspective view illustrating the arrangement for mounting the stabilizing means on the machine chassis,
FIG. 3 is a plan view of FIG. 2,
FIG. 4 is a part sectional side elevation of a means on the machine chassis, and
FIG. 5 is a modified arrangement for mounting the rotary turret and the stabilizing means on the machine chassis and for locking the turret and stabilizing means in position.
Referring to these drawings the earth-working machine, in the form of a mechanical excavator comprises a chassis I mounted on endless tracks 2 and havinga rotary turret 3 rotatably mounted on said chassis about a vertical axis. The rotary turret carries means, indicated generally at 4, for carrying out earth-working operation, said means comprising a jib 5 articulated at 6 to said turret and having pivoted to its outer free end at 9 a lever 8 to which is pivotally mounted an earthworking implement in the form of a scoop 11. Operation of the jib 5, lever 8 and scoop 11 is effected in known manner by hydraulic rams 7, and 12 respectively.
In accordance with the present invention the earth-working machine is provided with stabilizing means for stabilizing said machine while carrying out earth-working operations, said stabilizing means comprising a rotary support 13 to which two stabilizing legs l4, 15 are pivotally mounted at 16 and 17 respectively on diametrically opposite sides of said support 13. Each of said stabilizing legs 14, I5 is provided at its outer free end with an anchoring shoe 21 and 22 respectively and said stabilizing legs are pivotable by rams l8 and 19 respectively into an operative position, in which the anchoring shoes are in contact with the ground, or in an inoperative position, in which said anchoring shoes are out of contact with the ground.
The rotary support 13 is rotatably mounted on the chassis I, between said chassis and the rotary turret 3, about a vertical axis coaxial with the turret axis. The rotary support 13 can be locked in one of at least two positions by locking means 20 which comprises a locking pin which passes through a perforated lug or projection on said rotary support 13 and engages in a hole in a fixed part of the chassis l as indicated in FIG. 4 and 5. The locking means 20 are so arranged that said I rotary support 13 can be locked in one position in which the stabilizing legs project fore and aft of the machine substantially parallel to the longitudinal axis of the machine i.e., in the inoperative positions of said stabilizing legs (FIG 1), or in a second positions in which the stabilizing legs project outwards from the lateral sides of the vertical at right angles to the longitudinal axis of the vertical i.e., in the operative positions of the stabilizing legs (FIG. 2).
The mounting of the rotary turret 3 and the rotary support 13 on the chassis I of the machine may be carried out in any suitable manner, for example as illustrated diagrammatically in FIG. 4 or FIG. 5.
In the embodiment illustrated in FIG. 4 the rotary support 13 is mounted on a ring of roller bearings 24 carried on the chassis l and said support 13 carries on its upper part a second ring of roller bearings 23 upon which the turret 3 is rotatably mounted. Around the periphery of the ring of the roller bearings 23 is a crown wheel 25 with which meshes a pinion 27 fixed on the driving shaft of a motor 26 carried by the turret and by which said turret is rotated.
In the embodiment illustrated in FIG. 5 the rotary turret 3 and the rotary support 13 are rotatably mounted on rings of rollers bearings 28and 29respectively in a similar manner to that of FIG. 4 except that in this embodiment the ring of roller bearings 28 on which the turret is rotatable is not carried by the rotary support 13, as in FIG. 4, but on n extension (not shown) of the chassis which passes up through the rotary support 13. In the embodiment of FIG. 5 the turret 3 is rotated by a motor 26 through a pinion 27 and crown wheel 25 but in this embodiment locking means 30, similar to the locking means 20 above described, are provided for locking the turret 3 and the rotary support 13 together so that said turret and rotary support can be rotated simultaneously by the motor 26.
When, with an earth-working machine according to the invention, it is necessary to transport the machine from one site to another along public highway the rotary turret is rotated to position the jib 5 and its earth-working implement into the position shown in FIG. 1 and the rotary support 13 is rotated to position the stabilizing legs 14 and 15 fore and after of the vehicle and the ram 18,19 are operated to raise the stabilizing legs 14,15 and their anchoring shoes 21,22 into the inoperative position as shown in FIG. 1. When the turret 3, rotary support 13 and stabilizing means 14,15 are in the position as shown in FIG. 1 the turret and rotary support are locked in said positions by the locking means 20,23 so that the machine can then be driven safely along a public highway without the stabilizing means or the jib and earth-working implement being a danger to other traffic.
When the earth-working machine is to be used for excavating or other heavy earth-working operations the locking means 20,30 are released. The rotary support is rotated to position the stabilizing legs 14,15 so that they project laterally from each side of the machine and the rams 17,18 are operated to move the anchoring shoes 21 and 22 into contact with the ground as shown in FIG. 2. The anchoring shoes are of such a size as to engage the ground over as great an area as possible to enhance stabilization, but their length must not be greater than the overall width of the machine so as to ensure that they do not project beyond the sides of the machine when it is being driven along a public highway.
In order to reposition the jib 5, the earth-working implement 11 and the stabilizing legs 14,15 from the inoperative position (FIG. 1) to the operative position (FIG. 2) by the means illustrated in FIG. 4, the locking means 20 is first released so that the support 13 can rotate relative to the chassis l. The earth-working implement is lowered to the ground so as to immobilize the turret 3 relative to the support 13. The motor 26 is then operated so that the support 13 is rotated through pinion 27 and crown wheel to bring the stabilizing legs into operative position. The locking means 20 is then again locked and the stabilizing legs are lowered to bring their anchoring shoes into contact with the ground whereupon the earth-working implement is raised so that the turret 3 can be rotated relative to the chassis by means of the motor 26.
In order to position the jib 5, the earth-working implement 11 and the stabilizing legs 14,15 in to operative position (FIG. 2) from the inoperative position (FIG. 1) by the means illustrated in FIG. 5, the locking means 20 is released while the locking means remain in locked position. In this way turret 3 and the rotary support 13 are rotated together, by means of the motor 26. The stabilizing legs are then lowered into their operative position and the locking means 20 again locked so that operation of the motor 26 effect rotation of the turret 3 as described.
It is to be understood that the invention is not limited to the particular embodiment herein described but modifications can be made without departing from the scope of the invention as defined in the appended claims. For example, the earth-working machine may be provided with a wheeled chassis instead of an endless track chassis as shown.
I claim:
1. An earth-working machine, such as a mechanical excavator, comprising an endless track or wheeled chassis, a turret rotatably mounted on said chassis and carrying an earth-working implement and stabilizing means mounted on said chassis, said stabilizing means comprising a rotary support rotatably mounted on said chassis about an axis coaxial with the turret axis, stabilizing legs mounted on said support and each provided at its outer free end with an anchoring shoe having a length not greater than the overall width of the machine.
2. An earth-working machine according to claim 1, wherein said stabilizing legs are pivotally mounted on said rotary supports and ram means are provided for moving said legs into operative or inoperative position.
3. An earth-working machine according to claim 2 wherein means are provided for locking said rotary support and said turret in their operative or inoperative position.
4. An earth-working machine according to claim 1, wherein locking means are provided for locking said rotary support in the position in which the stabilizing legs are in operative position or in a position in which the stabilizing legs are in inoperative position.

Claims (4)

1. An earth-working machine, such as a mechanical excavator, comprising an endless track or wheeled chassis, a turret rotatably mounted on said chassis and carrying an earth-working implement and stabilizing means mounted on said chassis, said stabilizing means comprising a rotary support rotatably mounted on said chassis about an axis coaxial with the turret axis, stabilizing legs mounted on said support and each provided at its outer free end with an anchoring shoe having a length not greater than the overall width of the machine.
2. An earth-working machine according to claim 1, wherein said stabilizing legs are pivotally mounted on said rotary supports and ram means are provided for moving said legs into operative or inoperative position.
3. An earth-working machine according to claim 2 wherein means are provided for locking said rotary support and said turret in their operative or inoperative position.
4. An earth-working machine according to claim 1, wherein locking means are provided for locking said rotary support in the position in which the stabilizing legs are in operative position or in a position in which the stabiliZing legs are in inoperative position.
US830441A 1968-06-07 1969-06-04 Mechanical excavator or other earth working machine Expired - Lifetime US3608756A (en)

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ES (1) ES368115A1 (en)
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GB (1) GB1209015A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987563A (en) * 1973-12-15 1976-10-26 Hans Boos Excavator
US4049070A (en) * 1974-07-19 1977-09-20 Ingebret Soyland Excavator having lifting legs and cooperating boom mounted bucket for "walking"
US4401408A (en) * 1980-08-14 1983-08-30 Pierre Gibert Articulated vehicle
FR2541259A1 (en) * 1983-02-23 1984-08-24 Ppm Sa MOBILE MACHINE, SUCH AS A MOBILE CRANE, HAVING A TURRET AND A SET OF STABILIZERS
DE3310491A1 (en) * 1983-03-23 1984-10-04 O & K Orenstein & Koppel Ag, 1000 Berlin SUPPORT DEVICE ON CHAIN VEHICLES
FR2555563A1 (en) * 1983-11-30 1985-05-31 Morita Fire Pump Mfg ROTATING BLOCK FOR WORKING VEHICLE IN HEIGHT
EP0221047A1 (en) * 1985-10-28 1987-05-06 VOEST-ALPINE Aktiengesellschaft Support for a swivel jib of a loader
US5622235A (en) * 1992-06-05 1997-04-22 Merritt; John T. Tracked vehicle
DE29915375U1 (en) * 1999-08-04 2001-01-18 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Crawler crane
US6360905B1 (en) 1999-08-04 2002-03-26 Liebherr-Werk Ehingen Gmbh Crawler-mounted crane with detachable lateral stablizers
EP1010820A4 (en) * 1997-07-11 2002-07-31 Komatsu Mfg Co Ltd Work machine
JP2004307216A (en) * 2003-04-08 2004-11-04 Liebherr Werk Ehingen Gmbh Traveling crane
US20070012641A1 (en) * 2003-04-10 2007-01-18 Furukawa Co., Ltd. Safety device against overturning crane
USD609252S1 (en) * 2007-10-01 2010-02-02 Takeuchi Mfg. Co., Ltd. Power shovel
USD687865S1 (en) * 2012-09-26 2013-08-13 Yanmar Co., Ltd. Excavator
USD716845S1 (en) * 2013-07-29 2014-11-04 Yanmar Co., Ltd. Excavator
USD716844S1 (en) * 2013-07-29 2014-11-04 Yanmar Co., Ltd. Excavator
CN105822230A (en) * 2016-02-04 2016-08-03 平南县六陈镇炳德机械厂 Rotary excavating assistance device for rotary drilling rig and rotary drilling rig
EP3075914A1 (en) * 2015-04-02 2016-10-05 Caterpillar SARL Undercarriage with augmented lateral stability

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT379629B (en) * 1981-12-04 1986-02-10 Menzi Ag Ernst EXCAVATOR
DE19625037C2 (en) * 1996-06-22 1998-07-09 Lausitzer Braunkohle Ag Earth moving equipment
DE202004004714U1 (en) * 2004-03-25 2005-09-08 Liebherr-Hydraulikbagger Gmbh Undercarriage for mobile machines
CN102108789B (en) * 2010-12-23 2012-07-04 三一重工股份有限公司 Engineering machinery
CN110745715A (en) * 2019-09-29 2020-02-04 曾杏兰 Automobile crane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653247A (en) * 1925-08-14 1927-12-20 Charles B Zollinger Shovel or crane
DE615151C (en) * 1935-06-28 Demag Akt Ges Arrangement of the supports to prevent tipping on a railway crane
US2961102A (en) * 1959-02-17 1960-11-22 Pitman Mfg Company Hydraulic swinging boom-type hoist

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE615151C (en) * 1935-06-28 Demag Akt Ges Arrangement of the supports to prevent tipping on a railway crane
US1653247A (en) * 1925-08-14 1927-12-20 Charles B Zollinger Shovel or crane
US2961102A (en) * 1959-02-17 1960-11-22 Pitman Mfg Company Hydraulic swinging boom-type hoist

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987563A (en) * 1973-12-15 1976-10-26 Hans Boos Excavator
US4049070A (en) * 1974-07-19 1977-09-20 Ingebret Soyland Excavator having lifting legs and cooperating boom mounted bucket for "walking"
US4401408A (en) * 1980-08-14 1983-08-30 Pierre Gibert Articulated vehicle
FR2541259A1 (en) * 1983-02-23 1984-08-24 Ppm Sa MOBILE MACHINE, SUCH AS A MOBILE CRANE, HAVING A TURRET AND A SET OF STABILIZERS
DE3310491A1 (en) * 1983-03-23 1984-10-04 O & K Orenstein & Koppel Ag, 1000 Berlin SUPPORT DEVICE ON CHAIN VEHICLES
FR2555563A1 (en) * 1983-11-30 1985-05-31 Morita Fire Pump Mfg ROTATING BLOCK FOR WORKING VEHICLE IN HEIGHT
US4523685A (en) * 1983-11-30 1985-06-18 Morita Fire Pump Mfg. Co., Ltd. Revolving block for high place working vehicle
EP0221047A1 (en) * 1985-10-28 1987-05-06 VOEST-ALPINE Aktiengesellschaft Support for a swivel jib of a loader
US5622235A (en) * 1992-06-05 1997-04-22 Merritt; John T. Tracked vehicle
EP1010820A4 (en) * 1997-07-11 2002-07-31 Komatsu Mfg Co Ltd Work machine
DE29915375U1 (en) * 1999-08-04 2001-01-18 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Crawler crane
US6360905B1 (en) 1999-08-04 2002-03-26 Liebherr-Werk Ehingen Gmbh Crawler-mounted crane with detachable lateral stablizers
JP2004307216A (en) * 2003-04-08 2004-11-04 Liebherr Werk Ehingen Gmbh Traveling crane
EP1466856A3 (en) * 2003-04-08 2004-12-08 Liebherr-Werk Ehingen GmbH Mobile crane with outrigger structure
US20040256344A1 (en) * 2003-04-08 2004-12-23 Hans-Dieter Willim Traveling crane
US7178682B2 (en) 2003-04-08 2007-02-20 Liebherr-Werk Ehingen Gmbh Traveling crane
US20070012641A1 (en) * 2003-04-10 2007-01-18 Furukawa Co., Ltd. Safety device against overturning crane
US7364044B2 (en) * 2003-04-10 2008-04-29 Furukawa Co., Ltd. Safety device against overturning crane
USD633926S1 (en) * 2007-10-01 2011-03-08 Takeuchi Mfg., Co., Ltd. Power shovel
USD609252S1 (en) * 2007-10-01 2010-02-02 Takeuchi Mfg. Co., Ltd. Power shovel
USD687865S1 (en) * 2012-09-26 2013-08-13 Yanmar Co., Ltd. Excavator
USD716845S1 (en) * 2013-07-29 2014-11-04 Yanmar Co., Ltd. Excavator
USD716844S1 (en) * 2013-07-29 2014-11-04 Yanmar Co., Ltd. Excavator
EP3075914A1 (en) * 2015-04-02 2016-10-05 Caterpillar SARL Undercarriage with augmented lateral stability
CN105822230A (en) * 2016-02-04 2016-08-03 平南县六陈镇炳德机械厂 Rotary excavating assistance device for rotary drilling rig and rotary drilling rig
CN105822230B (en) * 2016-02-04 2019-06-07 平南县六陈镇炳德机械厂 The rotary digging auxiliary device and rotary drilling rig of rotary drilling rig

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Publication number Publication date
DE1928712A1 (en) 1969-12-11
DE1928712C3 (en) 1978-04-06
DE1928712B2 (en) 1977-08-04
ES368115A1 (en) 1971-05-01
GB1209015A (en) 1970-10-14
FR1582095A (en) 1969-09-26

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