CA2298508A1 - Concrete supply arm with articulated sections - Google Patents
Concrete supply arm with articulated sections Download PDFInfo
- Publication number
- CA2298508A1 CA2298508A1 CA002298508A CA2298508A CA2298508A1 CA 2298508 A1 CA2298508 A1 CA 2298508A1 CA 002298508 A CA002298508 A CA 002298508A CA 2298508 A CA2298508 A CA 2298508A CA 2298508 A1 CA2298508 A1 CA 2298508A1
- Authority
- CA
- Canada
- Prior art keywords
- arm
- sections
- actuator
- section
- hydraulic motor
- 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.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manipulator (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Jib Cranes (AREA)
- Braking Arrangements (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Reciprocating Pumps (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a concrete supply arm, to be mounted in particular on vehicule-transported concrete pumps, having several sections (11, 12) and articulating joints between said sections. In this arm the relative movement of the sections (11, 12) is performed, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms (23) consisting of a worm gear actuated by a hydraulic motor. Conveniently said actuators also comprise a locking brake.
Description
"CONCRETE SUPPLY ARM WITH ARTICULATED SECTIONS"
n ,r ,gin o., na ee no on f~IhAA'' ~oow .~n,a nno0 ~ ~ o o n ao A n a a a n a ,i n n ~ n ~, a s o n w a eee eae n ~, n o n a a a a a a n , 00 oe w w w m The present invention relates to concrete supply arms ~x~aCx ~ax~i~ctaxxa~c mounted on vehicle-transported concrete pumps xx ~ for moving said arm sections a ong vertical planes having several sections and articu atmg ~omts etween say section .
vertically movin Various types of multiple-se- coon / concrete supply arms are already well known, said arms being of the kind in which the relative alon vertical lanes movement of the sections is performe , ~n correspondence of the articulating joints, by means of kinematic mechanisms with articulated rods connected to the sections and double-acting hydraulic cylinders controlling them.
These constructions, however, have the drawback that the angular velocities at which the arm sections are moved are not constant (the angles of relative movement of the sections are not proportional to the stroke of the cylinder) and the significant limitation that, even when using complicated kinematic mechanisms, the angle of maximum relative rotation of the sections is generally not greater than 2$0°
It can be easily understood how important it is to avoid the abovementioned drawback and limitation of the known constructions, in order to achieve greater operational efficiency and safety and have a greater degree of manoeuvrability and versatility during use of the concrete supply arms, in particular along the sections and at the articulating joints closest to the delivery end of the arms themselves.
From UK-A-2132676 is fiuthermore known an apparatus for horizontally casting concrete, which comprises several arm sections and articulation joints between them, wherein the relative movement of the sections is performed by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor.
In this apparatus the actuator mechanisms must only provide said movement -which occurs along an horizontal plane - without supporting the weight of the single arm sections.
Surprisingly, it has been now found that the actuator mechanisms, of the kind of the ones used on the apparatus of UK-A-2132676, may be applied with success in a concrete supply arm, the arm sections of which are foreseen for reciprocal movements along vertical planes ( so that the weight of the single arm sections is at least in part supported by said actuator mechanisms).
More in details the present application is thus relative to a concrete supply arm - to be mounted on vehicle-transported concrete pumps - having several sections and for moving said arm sections alo vertical planes, articulating joints between said sections, character~zad in that the relative movement of the sections is performed, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms consisting of a worm gear actuated by a ca o229ssos Zooo-oi-ZS ~MENpED S;~ii:;T
1 '.
, .1 ~ ~ , 19 ~~ AA nU
n., , , rn 1 ~ a ~ ~ n n "
., o , ., r~. ' , n ~ ~ ~ n n ~ . n o ~ , , n , s ~~~ ~ vee non t , , n , ~ n ~ ~ ~ n o ~~ on o~ s~ W W w hydraulic motor.
Preferably said actuators also comprise a locking brake.
Conveniently in the arm according to the invention the relative movement of the sections is performed by means of actua:or mechanisms consisting of a worm gear actuated by a hydraulic moor only at the articulating joints close to the delivery end o. the arm.
With arms constructed in this manner, the angular velocity at which the relative movement of the sections takes place may be kept constant, without difficulty, over the entire amplitude of the relative angular displacements and the latter may also be much greater than 280°, with obvious advantages for the operators and improvement in the quality of the work.
The invention is now described in greater detail 4vith reference to the accompanying drawings which relate to some preferred multi ~le.-section vertically moving concrete sub 1 S em6~ments or t a arm' according to t~ mvennon, as defined above and in which:
Fig. 1 is a schematic view of the 2rticulation betLVeen two end multiple section vertically moving sections o'r a/concrete supply arm according to the pr for art;
Figs. 2 and 3 are two schematic views - a side view and a plan verticall moving view - of an articulating joint between two sections o concrete supply arm equipped, according to a first embodiment of the invention, with an internal actuator;
Figs. 4 and 5 are two similar schematic views of a different embodiment o. the solution according to Figs. 2 and 3;
Figs. 6 and 7 are two similar schematic vie~~rs of a further embodiment o. the solution according to Figs. 2 and 3;
Figs. 8 and 9 are two schematic views - a side view and a plan vertically movins~
view - of an articulating joint between two sections of a/concrete supply arm equipped, according to another embodiment of the invention, with an external actuator; and Fig. 10 shows in detail a sectional view of a possible AMENDED SI;wT
construction of one of the actuators applied to the embodiments of Figs. 2 to 9, of the invention.
With reference to the drawings, Fig. 1 shows a schematic view of the construction of an articulation or articulating joint between two end sections of a concrete supply arm according to the prior art: the two sections 1 and 2 are connected by a kinematic mechanism comprising two connecting rods 3 and 4 which are pivotably hinged at 5, 6 and 7 to the two sections 1 and 2 and to one another and a double-acting hydraulic cylinder-piston unit 8, the cylinder of which is pivotably hinged at the closed end at 9 to a lug 1 A of the section 1 and the piston of which is pivotably hinged at 10 with its outer end to the connecting rod 3, so as to control the movement of the section 2 with respect to the section 1. It is obvious from this figure that the maximum angle by which the section 2 is able to be rotated with respect to the section 1 does not exceed 280° tit is equivalent to about 270°), while the angular velocities at which the sections of the arm may be moved are not constant, but continuously variable, since the angles of relative movement of the sections are not proportional to the stroke of the cylinder.
According to the invention, these drawbacks - which result, as already mentioned, in the poor operational efficiency and safety and in particular in a degree of manoeuvrability and versatility far inferior to that which is desirable in the use of the concrete supply arms - are eliminated by performing the relative movement of the sections, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor and applied in various ways, as illustrated in Figs. 2 to 10.
In the embodiment according to Figs. 2 and 3 of the invention, an internal actuator 13, in line with both the sections 11 and 12 of the arm, is used. The actuator comprises a worm gear consisting of a worm screw housed in a casing 14 and of a wheel in engagement with said screw, housed inside a casing 15, the latter being located in a special seat 16 formed at the end of the section 11 of the arm. The casing 14 also houses a hydraulic motor which - suitably energised -causes rotation of the the worm screw of the actuator and produces the rotations, in either direction, of the associated wheel, moving the section 12 with respect to the section 11. The actuator also comprises preferably parking brake means so as to lock as securely as possible the two sections 11 and 12 in the desired position. It can be clearly seen that it is possible to exceed without difficulty, using this solution, an angle of movement of the section 12 with respect to the section 11 which is far greater than 280° and it is obvious that, by using the actuator 13, it is possible to achieve a constant angular velocity during the movement.
In the embodiment according to Figs. 4 and 5, the actuator 13 is again internal and in line with both the sections, but the rest position of the latter, which in the preceding case consisted in the elements resting on top of each other (section 12 folded underneath the section 11 ), in this case consists in the elements being aligned with each other, with the section 12 which is at rest being arranged aligned as a continuation of the section 11.
In the embodiment according to Figs. 6 and 7, on the other hand, the actuator 13 is again internal, but is in line with only one of the sections of the arm to be moved relative to one another, for example with the section 11. With this construction it is possible to obtain a continuous rotary movement of the section 12 with respect to the section 11 and the locking of the former with respect to the latter in any position over the entire angle of 360°.
In the embodiment according to Figs. 8 and 9 of the invention, an actuator 23 which is located outside both the sections 21 and 22 of the arm is used. The actuator comprises a worm screw housed in WO 99/06650 PC1'/EP98/04588 a casing 24 and a wheel in engagement with said screw, housed in a casing 25. The casing 24 also houses a hydraulic motor which -suitably energised - causes rotation of the worm screw of the actuator and produces rotations, in either direction, of the associated wheel, moving the section 22 with respect to the section 21. The actuator is arranged alongside the ends of the sections 21 and 22 which are articulated with one another and is connected to the section 21 by an anti-torsional bar 21 A and to the section 22 by the output shaft moved by the wheel housed inside the casing 25. In this case, also, the actuator preferably comprises locking brake means, so as to lock as securely as possible the two sections 21 and 22 in the desired position. 1n this case also it is possible to exceed, without difficulty, an angle of movement of the section 22 with respect to the section 21 which is tar greater than 280° with a constant angular-velocity movement.
Fig. 10 illustrates a possible construction of an actuator 30 to be applied to any one of the embodiments according to Figs. 2 and 9 of the concrete supply arm according to the invention. The actuator illustrated comprises, inside a casing 31 to be associated with the arm by means of the lug 31 A, a transmission consisting of a worm screw 32 and of a wheel 33 housed respectively in the parts 34 and 35 of the casing 31, with which there are also associated an orbital hydraulic motor 36, which causes rotation, whenever suitably energised, of the worm screw 32 and a lamellar brake 37 intended to lock in the desired position the shaft of the screw 32 and hence the two sections of the arm on the articulating joint of which the actuator is mounted.
It is understood that the construction of the concrete supply arm according to the invention may differ from those described and 30 illustrated. In particular different actuators may be used, being differently driven or differently arranged with respect to that ;~~v ' o ,» >0 00 oe eo 0o n~ i.i n n .~ ~~ n o n a a o o a -~, , , o n nn a n o v a o 0 0 1 0 ~ n o 0 0 o a a eee o eeo 000 , o n o a a o a o 0 shOWfl ~ n o.~ o0 on ee W ev ~, without thereby departing from the protective scope of the invention, as described by the appended claims.
n ,r ,gin o., na ee no on f~IhAA'' ~oow .~n,a nno0 ~ ~ o o n ao A n a a a n a ,i n n ~ n ~, a s o n w a eee eae n ~, n o n a a a a a a n , 00 oe w w w m The present invention relates to concrete supply arms ~x~aCx ~ax~i~ctaxxa~c mounted on vehicle-transported concrete pumps xx ~ for moving said arm sections a ong vertical planes having several sections and articu atmg ~omts etween say section .
vertically movin Various types of multiple-se- coon / concrete supply arms are already well known, said arms being of the kind in which the relative alon vertical lanes movement of the sections is performe , ~n correspondence of the articulating joints, by means of kinematic mechanisms with articulated rods connected to the sections and double-acting hydraulic cylinders controlling them.
These constructions, however, have the drawback that the angular velocities at which the arm sections are moved are not constant (the angles of relative movement of the sections are not proportional to the stroke of the cylinder) and the significant limitation that, even when using complicated kinematic mechanisms, the angle of maximum relative rotation of the sections is generally not greater than 2$0°
It can be easily understood how important it is to avoid the abovementioned drawback and limitation of the known constructions, in order to achieve greater operational efficiency and safety and have a greater degree of manoeuvrability and versatility during use of the concrete supply arms, in particular along the sections and at the articulating joints closest to the delivery end of the arms themselves.
From UK-A-2132676 is fiuthermore known an apparatus for horizontally casting concrete, which comprises several arm sections and articulation joints between them, wherein the relative movement of the sections is performed by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor.
In this apparatus the actuator mechanisms must only provide said movement -which occurs along an horizontal plane - without supporting the weight of the single arm sections.
Surprisingly, it has been now found that the actuator mechanisms, of the kind of the ones used on the apparatus of UK-A-2132676, may be applied with success in a concrete supply arm, the arm sections of which are foreseen for reciprocal movements along vertical planes ( so that the weight of the single arm sections is at least in part supported by said actuator mechanisms).
More in details the present application is thus relative to a concrete supply arm - to be mounted on vehicle-transported concrete pumps - having several sections and for moving said arm sections alo vertical planes, articulating joints between said sections, character~zad in that the relative movement of the sections is performed, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms consisting of a worm gear actuated by a ca o229ssos Zooo-oi-ZS ~MENpED S;~ii:;T
1 '.
, .1 ~ ~ , 19 ~~ AA nU
n., , , rn 1 ~ a ~ ~ n n "
., o , ., r~. ' , n ~ ~ ~ n n ~ . n o ~ , , n , s ~~~ ~ vee non t , , n , ~ n ~ ~ ~ n o ~~ on o~ s~ W W w hydraulic motor.
Preferably said actuators also comprise a locking brake.
Conveniently in the arm according to the invention the relative movement of the sections is performed by means of actua:or mechanisms consisting of a worm gear actuated by a hydraulic moor only at the articulating joints close to the delivery end o. the arm.
With arms constructed in this manner, the angular velocity at which the relative movement of the sections takes place may be kept constant, without difficulty, over the entire amplitude of the relative angular displacements and the latter may also be much greater than 280°, with obvious advantages for the operators and improvement in the quality of the work.
The invention is now described in greater detail 4vith reference to the accompanying drawings which relate to some preferred multi ~le.-section vertically moving concrete sub 1 S em6~ments or t a arm' according to t~ mvennon, as defined above and in which:
Fig. 1 is a schematic view of the 2rticulation betLVeen two end multiple section vertically moving sections o'r a/concrete supply arm according to the pr for art;
Figs. 2 and 3 are two schematic views - a side view and a plan verticall moving view - of an articulating joint between two sections o concrete supply arm equipped, according to a first embodiment of the invention, with an internal actuator;
Figs. 4 and 5 are two similar schematic views of a different embodiment o. the solution according to Figs. 2 and 3;
Figs. 6 and 7 are two similar schematic vie~~rs of a further embodiment o. the solution according to Figs. 2 and 3;
Figs. 8 and 9 are two schematic views - a side view and a plan vertically movins~
view - of an articulating joint between two sections of a/concrete supply arm equipped, according to another embodiment of the invention, with an external actuator; and Fig. 10 shows in detail a sectional view of a possible AMENDED SI;wT
construction of one of the actuators applied to the embodiments of Figs. 2 to 9, of the invention.
With reference to the drawings, Fig. 1 shows a schematic view of the construction of an articulation or articulating joint between two end sections of a concrete supply arm according to the prior art: the two sections 1 and 2 are connected by a kinematic mechanism comprising two connecting rods 3 and 4 which are pivotably hinged at 5, 6 and 7 to the two sections 1 and 2 and to one another and a double-acting hydraulic cylinder-piston unit 8, the cylinder of which is pivotably hinged at the closed end at 9 to a lug 1 A of the section 1 and the piston of which is pivotably hinged at 10 with its outer end to the connecting rod 3, so as to control the movement of the section 2 with respect to the section 1. It is obvious from this figure that the maximum angle by which the section 2 is able to be rotated with respect to the section 1 does not exceed 280° tit is equivalent to about 270°), while the angular velocities at which the sections of the arm may be moved are not constant, but continuously variable, since the angles of relative movement of the sections are not proportional to the stroke of the cylinder.
According to the invention, these drawbacks - which result, as already mentioned, in the poor operational efficiency and safety and in particular in a degree of manoeuvrability and versatility far inferior to that which is desirable in the use of the concrete supply arms - are eliminated by performing the relative movement of the sections, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor and applied in various ways, as illustrated in Figs. 2 to 10.
In the embodiment according to Figs. 2 and 3 of the invention, an internal actuator 13, in line with both the sections 11 and 12 of the arm, is used. The actuator comprises a worm gear consisting of a worm screw housed in a casing 14 and of a wheel in engagement with said screw, housed inside a casing 15, the latter being located in a special seat 16 formed at the end of the section 11 of the arm. The casing 14 also houses a hydraulic motor which - suitably energised -causes rotation of the the worm screw of the actuator and produces the rotations, in either direction, of the associated wheel, moving the section 12 with respect to the section 11. The actuator also comprises preferably parking brake means so as to lock as securely as possible the two sections 11 and 12 in the desired position. It can be clearly seen that it is possible to exceed without difficulty, using this solution, an angle of movement of the section 12 with respect to the section 11 which is far greater than 280° and it is obvious that, by using the actuator 13, it is possible to achieve a constant angular velocity during the movement.
In the embodiment according to Figs. 4 and 5, the actuator 13 is again internal and in line with both the sections, but the rest position of the latter, which in the preceding case consisted in the elements resting on top of each other (section 12 folded underneath the section 11 ), in this case consists in the elements being aligned with each other, with the section 12 which is at rest being arranged aligned as a continuation of the section 11.
In the embodiment according to Figs. 6 and 7, on the other hand, the actuator 13 is again internal, but is in line with only one of the sections of the arm to be moved relative to one another, for example with the section 11. With this construction it is possible to obtain a continuous rotary movement of the section 12 with respect to the section 11 and the locking of the former with respect to the latter in any position over the entire angle of 360°.
In the embodiment according to Figs. 8 and 9 of the invention, an actuator 23 which is located outside both the sections 21 and 22 of the arm is used. The actuator comprises a worm screw housed in WO 99/06650 PC1'/EP98/04588 a casing 24 and a wheel in engagement with said screw, housed in a casing 25. The casing 24 also houses a hydraulic motor which -suitably energised - causes rotation of the worm screw of the actuator and produces rotations, in either direction, of the associated wheel, moving the section 22 with respect to the section 21. The actuator is arranged alongside the ends of the sections 21 and 22 which are articulated with one another and is connected to the section 21 by an anti-torsional bar 21 A and to the section 22 by the output shaft moved by the wheel housed inside the casing 25. In this case, also, the actuator preferably comprises locking brake means, so as to lock as securely as possible the two sections 21 and 22 in the desired position. 1n this case also it is possible to exceed, without difficulty, an angle of movement of the section 22 with respect to the section 21 which is tar greater than 280° with a constant angular-velocity movement.
Fig. 10 illustrates a possible construction of an actuator 30 to be applied to any one of the embodiments according to Figs. 2 and 9 of the concrete supply arm according to the invention. The actuator illustrated comprises, inside a casing 31 to be associated with the arm by means of the lug 31 A, a transmission consisting of a worm screw 32 and of a wheel 33 housed respectively in the parts 34 and 35 of the casing 31, with which there are also associated an orbital hydraulic motor 36, which causes rotation, whenever suitably energised, of the worm screw 32 and a lamellar brake 37 intended to lock in the desired position the shaft of the screw 32 and hence the two sections of the arm on the articulating joint of which the actuator is mounted.
It is understood that the construction of the concrete supply arm according to the invention may differ from those described and 30 illustrated. In particular different actuators may be used, being differently driven or differently arranged with respect to that ;~~v ' o ,» >0 00 oe eo 0o n~ i.i n n .~ ~~ n o n a a o o a -~, , , o n nn a n o v a o 0 0 1 0 ~ n o 0 0 o a a eee o eeo 000 , o n o a a o a o 0 shOWfl ~ n o.~ o0 on ee W ev ~, without thereby departing from the protective scope of the invention, as described by the appended claims.
ca o229ssos Zooo-oi-ZS ANjENDEF~ Si~~=~T
Claims (6)
1) Concrete supply arm to be mounted on vehicle-transported concrete pumps having several sections (11, 12; 21, 23) and articulating joints between said sections for moving said arm sections along vertical planes, characterised in that the relative movement of the arm sections (11, 12; 21, 22) is performed, in correspondence of at least some of the articulating joints of the arm by means of actuator mechanism (13, 23) consisting of a worm gear actuated by a hydraulic motor.
2) Arm as claimed in Claim 1, in which said actuators also comprise a locking brake.
3) Arm as claimed in Claim 2, in which said locking brake is a lamellar brake (37) associated with the actuator mechanism (31, 32, 33).
4) Arm as claimed in Claim 3, in which said hydraulic motor is an orbital motor (36).
5) Arm as claimed in Claims 1 to 4, in which the relative movement of the sections (11, 12; 21, 22) is performed by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor only in correspondence of the articulating joints close to the delivery end of the arm.
6) Arm as claimed in Claims 1 to 4, in which the relative movement of the sections (11, 12; 21, 22) is performed by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor only in correspondence of the last articulating joint close to the delivery end of the arm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT97MI001835A IT1293518B1 (en) | 1997-07-31 | 1997-07-31 | ARM WITH MULTIPLE JOINTS FOR THE DISTRIBUTION OF CONCRETE |
| ITMI97A001835 | 1997-07-31 | ||
| PCT/EP1998/004588 WO1999006650A1 (en) | 1997-07-31 | 1998-07-22 | Concrete supply arm with articulated sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2298508A1 true CA2298508A1 (en) | 1999-02-11 |
Family
ID=11377687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002298508A Abandoned CA2298508A1 (en) | 1997-07-31 | 1998-07-22 | Concrete supply arm with articulated sections |
Country Status (17)
| Country | Link |
|---|---|
| EP (2) | EP0894915A1 (en) |
| CN (1) | CN1265719A (en) |
| AR (1) | AR015139A1 (en) |
| AT (1) | ATE206793T1 (en) |
| AU (1) | AU8978498A (en) |
| CA (1) | CA2298508A1 (en) |
| CO (1) | CO4840534A1 (en) |
| DE (1) | DE69801997T2 (en) |
| DK (1) | DK1002172T3 (en) |
| ES (1) | ES2165698T3 (en) |
| HR (1) | HRP20000046A2 (en) |
| IT (1) | IT1293518B1 (en) |
| PL (1) | PL338450A1 (en) |
| PT (1) | PT1002172E (en) |
| TR (1) | TR200000265T2 (en) |
| WO (1) | WO1999006650A1 (en) |
| ZA (1) | ZA986638B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT511833B1 (en) | 2011-11-10 | 2013-03-15 | Schwing Gmbh F | MASTER CONSTRUCTION, ESPECIALLY FOR A AUTOBETON PUMP |
| DE102014203054A1 (en) * | 2014-02-20 | 2015-09-03 | Putzmeister Engineering Gmbh | Concrete distributor boom, in particular a mobile concrete pump |
| DE102019133396A1 (en) * | 2019-11-15 | 2021-05-20 | Schwing Gmbh | Articulated drive with planetary gear, large manipulator and truck-mounted concrete pump |
| DE102019133380A1 (en) * | 2019-11-15 | 2021-05-20 | Schwing Gmbh | Articulated drive with worm gear, large manipulator and truck-mounted concrete pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1759404C3 (en) * | 1968-04-27 | 1974-03-28 | Friedrich Dipl.-Ing. 4680 Wanne-Eickel Schwing | Device for spreading concrete |
| US3572380A (en) * | 1968-10-08 | 1971-03-23 | Challenge Cook Bros Inc | Concrete pump boom |
| US4519768A (en) * | 1982-10-29 | 1985-05-28 | Takenaka Komuten Co., Ltd. | Apparatus for horizontally casting concrete |
-
1997
- 1997-07-31 IT IT97MI001835A patent/IT1293518B1/en active IP Right Grant
-
1998
- 1998-01-26 EP EP98101317A patent/EP0894915A1/en not_active Withdrawn
- 1998-07-22 ES ES98941399T patent/ES2165698T3/en not_active Expired - Lifetime
- 1998-07-22 TR TR2000/00265T patent/TR200000265T2/en unknown
- 1998-07-22 AT AT98941399T patent/ATE206793T1/en active
- 1998-07-22 PT PT98941399T patent/PT1002172E/en unknown
- 1998-07-22 CA CA002298508A patent/CA2298508A1/en not_active Abandoned
- 1998-07-22 EP EP98941399A patent/EP1002172B1/en not_active Expired - Lifetime
- 1998-07-22 CN CN98807779A patent/CN1265719A/en active Pending
- 1998-07-22 DE DE69801997T patent/DE69801997T2/en not_active Expired - Lifetime
- 1998-07-22 PL PL98338450A patent/PL338450A1/en unknown
- 1998-07-22 AU AU89784/98A patent/AU8978498A/en not_active Abandoned
- 1998-07-22 WO PCT/EP1998/004588 patent/WO1999006650A1/en active IP Right Grant
- 1998-07-22 DK DK98941399T patent/DK1002172T3/en active
- 1998-07-24 ZA ZA986638A patent/ZA986638B/en unknown
- 1998-07-30 CO CO98043557A patent/CO4840534A1/en unknown
- 1998-07-31 AR ARP980103821A patent/AR015139A1/en unknown
-
2000
- 2000-01-27 HR HR20000046A patent/HRP20000046A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE69801997T2 (en) | 2002-05-16 |
| EP1002172B1 (en) | 2001-10-10 |
| DK1002172T3 (en) | 2002-02-11 |
| ES2165698T3 (en) | 2002-03-16 |
| EP1002172A1 (en) | 2000-05-24 |
| EP0894915A1 (en) | 1999-02-03 |
| PT1002172E (en) | 2002-03-28 |
| TR200000265T2 (en) | 2000-05-22 |
| PL338450A1 (en) | 2000-11-06 |
| CN1265719A (en) | 2000-09-06 |
| ZA986638B (en) | 1999-02-02 |
| HRP20000046A2 (en) | 2001-10-31 |
| AU8978498A (en) | 1999-02-22 |
| AR015139A1 (en) | 2001-04-18 |
| IT1293518B1 (en) | 1999-03-01 |
| CO4840534A1 (en) | 1999-09-27 |
| DE69801997D1 (en) | 2001-11-15 |
| WO1999006650A1 (en) | 1999-02-11 |
| ATE206793T1 (en) | 2001-10-15 |
| ITMI971835A1 (en) | 1999-01-31 |
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| Date | Code | Title | Description |
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| FZDE | Discontinued |