EP2906375A1 - Rüttelhammer mit rückschlagdämpfung - Google Patents
Rüttelhammer mit rückschlagdämpfungInfo
- Publication number
- EP2906375A1 EP2906375A1 EP13805221.2A EP13805221A EP2906375A1 EP 2906375 A1 EP2906375 A1 EP 2906375A1 EP 13805221 A EP13805221 A EP 13805221A EP 2906375 A1 EP2906375 A1 EP 2906375A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hammer
- cylinder
- damping element
- piston
- holder
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 77
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000009527 percussion Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/005—Removing cores by vibrating or hammering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/10—Compacting by jarring devices only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/02—Vibratory apparatus specially designed for shaking out flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
Definitions
- the invention relates to a vibrating hammer, comprising a cylinder, a hammer mounted movably in relation to the cylinder with an outer face and a displaceably mounted in the cylinder, with a pressurized fluid or electromechanical driven piston whose displacement extends to the hammer.
- the hammer is accommodated in a cavity which is arranged in a hammer holder coupled to the cylinder.
- the vibrating hammer may comprise a connection for a fluid and a channel which connects the connection with a displacement which is formed by the cylinder and a side of the piston facing away from the striking piece.
- Such a vibrating hammer is known in principle from the prior art and is marketed, for example, by Olmer. Such hammers are used, for example, for smashing molds used for metal casting.
- the vibrating hammer is placed with the impact surface of the hammer on the workpiece and then the piston - usually with the help of compressed air - accelerated in the cylinder in the direction of the hammer.
- the momentum of the piston is transmitted to the workpiece over the impact surface when it strikes the impact element and thus leads to a smashing of the casting mold.
- An object of the invention is therefore to provide an improved vibrating hammer.
- the life of the vibrating hammer, or the time interval between two revisions should be extended.
- the object of the invention is achieved with a vibrating hammer of the type mentioned, in which the hammer and / or the hammer holder is damped with respect to an axial movement along the cylinder axis in both directions.
- the repercussions on the cylinder are significantly reduced, which significantly prolongs an extension of the life of the vibrating hammer or the time between two revisions.
- an inner diameter of the cylinder provided in the area of the striking piece projects transversely to the direction of movement of the striking piece or transversely to the cylinder axis
- a "side of the striking piece facing the piston” is not necessarily to be understood as the surface of the striking piece on which the piston impacts, "a portion of the striking piece facing the piston” is to be understood in the context of the invention generally as meaning those surfaces of the striking piece. which are aligned to the rear or facing away from the clubface.
- the vibrating hammer comprises a first damping element between the cylinder and the side of the striking piece facing the piston, and a second damping element which is arranged between the striking piece holder and a side of the striking piece facing the striking surface.
- first and / or second damping element is formed by a disc. In this way, the repercussions on the cylinder can be well dampened with readily available means.
- the first damping element is formed by a bush arranged between cylinder and hammer.
- the hammer does not need to be fitted exactly in the cylinder, or results in particular when tilting the vibrating hammer a significant reduction in wear.
- the sleeve has a collar which is arranged between the cylinder and a side facing the piston of the striking piece is particularly advantageous. In this way, axial recoil can be well damped and the wear compared to known systems, in which the striking piece strikes the cylinder unattenuated, be reduced.
- the vibrating hammer comprises
- a (in particular one-piece) first damping element which surrounds the collar of the percussion piece or the projection of the impact piece holder in cross-section and has a cylinder facing first portion and a second face facing the impact surface.
- the hammer is almost integrated into the first damping element. embedded, whereby not only axial shocks / setbacks but also radial components of the same are transmitted to the cylinder with reduced pressure.
- the said first damping element has a bush-shaped or tubular section arranged between the cylinder and the striking piece.
- the hammer does not need to be fitted exactly in the cylinder, or results in particular when tilting the vibrating hammer a significant reduction of the repercussions on the cylinder and the wear of the bearing surfaces.
- the first and / or second damping element projects beyond the outer diameter of the cylinder. In this way, a game between the Schlag Westernhalter and the cylinder may be provided so that the hammer holder can be easily mounted on the cylinder, without the need for a complicated shape of the hammer holder would be necessary. For example, it may simply have the shape of an inner cylinder in the said area.
- first and / or second damping element has at least one rounded edge in the region of the collar or the groove of the striking piece. As a result, the formation of cracks in a damping element can be effectively avoided or at least delayed.
- the collar or the groove of the hammer has at least one rounded edge. As a result, the formation of cracks in the hammer can be effectively avoided or at least delayed.
- the first damping element has a third section arranged between the cylinder and the hammer holder. In this way, repercussions from the blow piece holder can be avoided on the cylinder or at least mitigated.
- the vibrating hammer comprises a third damping element between the cylinder and the hammer holder. In this way, repercussions from the blow piece holder on the cylinder also avoided or at least mitigated.
- the hammer holder is constructed in several parts, in particular in two parts. This allows the hammer holder on the cylinder, respectively the hammer and dampening elements in the hammer holder can be easily mounted. It is favorable in this context if the axis of rotation of the cylinder lies in a part plane of the hammer holder. In this way, the hammer holder can be easily mounted on the cylinder. In addition, the beats are not passed over the part plane. But it would also be favorable if a part plane of the impact piece holder is arranged normally on the axis of rotation of the cylinder. As a result, the said parts can be mounted even easier.
- the vibrating hammer comprises a fourth damping element arranged on the impact piece holder, which holds together the parts of a multipart impact piece holder. In this way, the hammer holder can be easily mounted on the cylinder.
- first and / or second and / or third and / or fourth damping element is / are made of an elastomer.
- an elastomer is selected with good sliding properties, because it reduces the friction between the cylinder and hammer respectively a sleeve arranged therebetween and the performance of the system can be improved.
- the third and / or fourth damping element is / are formed as an O-ring, since an O-ring represents a readily available and proven means.
- the elastic and damping properties are used.
- the sealing function tends to play little or no role.
- the first and / or second damping element with the hammer and / or the cylinder glued or vulcanized on this / these are / respectively the third and / or fourth damping element is glued to the hammer holder and / or the cylinder or vulcanized onto this / these.
- a shearing force can also be transmitted well by a damping element and the setback can be mitigated in this way.
- a contact surface of the piston with the striking piece is convex / concave and a contact surface of the striking piece with the piston is concave / convex.
- the piston and the striking piece still lie flat against each other when the hammer is twisted or tilted in the cylinder.
- the surfaces mentioned may be spherical.
- the cylinder is displaceably mounted in a housing. In this way, the hammer, which can be moved only slightly in relation to the cylinder in most cases, be placed on the workpiece, even if the housing is fixedly mounted. That is, the entire cylinder with piston and hammer can be telescoped out of the housing or retracted into this.
- FIG. 1 shows a longitudinal section of a vibrating hammer shown schematically.
- FIG. 2 is a detailed view of the vibrating hammer shown in FIG. 1;
- FIG. 3 is a longitudinal section, a side view and a front view of a second exemplary vibrating hammer.
- Fig. 5 is a detail view of the vibrating hammer shown in Fig. 3;
- FIG. 6 like FIG. 5, only with a first damping element, which has a section arranged between cylinder and impact piece holder;
- FIG. 7 similar to FIG. 5, only with a groove in the hammer, in which a projection of
- FIGS 1 and 2 show a first example of a vibrating hammer 100, wherein in Fig. 1 is a longitudinal section of the vibrating hammer 100 and in Fig. 2 is an enlarged detail of the front portion of the vibrating hammer 100 is shown.
- the vibrating hammer 100 comprises: a cylinder 2 with a cylinder axis 3,
- a percussion piece 4 movably mounted with respect to the cylinder 2 with an outer striking face 5, a slidably mounted in the cylinder 2, with a pressurized fluid or electromechanically driven piston 6, whose displacement path extends to the hammer 4 and
- the cylinder 2 is slidably mounted in this example in an optional housing 8, which has a connection 9. About the bore 10 of the terminal 9 is connected to the displacement 11.
- the hammer 4 is damped in both directions with respect to an axial movement along the axis 3 of the cylinder 2.
- the vibrating hammer 100 in this example comprises a first damping element 12 and a second damping element 13.
- the hammer 4 in this example has a collar 14 which
- an inner diameter of the cylinder 2 provided in the region of the striking piece 4 projects transversely to the direction of movement of the striking piece 4 or transversely to the cylinder axis 3,
- the first damping element 12 is arranged between the cylinder 2 and the piston 6 facing side 15 of the hammer 4 and the second damping element 13 between the hammer holder 7 and a striking surface 5 facing side 16 of the hammer 4.
- the first damping element is formed by a sleeve 12 arranged between cylinder 2 and striking piece 4
- the second damping element is formed by a disk 13.
- the bush 12 has a tubular portion 17 and also a collar 18, which is arranged between the cylinder 2 and a piston 6 facing side 15 of the hammer 4.
- the function of the vibrating hammer 100 shown in FIG. 1 is as follows: In a first step, the hammer 4 is placed with its face 5 on a workpiece, not shown. For this purpose, the cylinder 2 is accordingly pushed out of the housing 8, which in this example is considered to be fixed, out or into it. By displaceably mounted cylinder 2 so a longitudinal offset can be compensated.
- connection 9 for example compressed air or pressure oil
- the connection 9 passes through a rear opening 10 in the cylinder into the displacement 11 and accelerates the piston 6 in the direction of the striking piece 4. This hits in a row on the hammer 4, which the mechanical impulse on the
- Impact surface 5 transmits to the workpiece and there leads, for example, to the destruction of a casting core.
- While hitting with the aid of a pressurized fluid is an advantageous but by no means the only option. It is also conceivable, for example, that the impact is carried out with the aid of an electromechanical drive, for example with a linear motor. In this case, the core of an electromagnet can be thrown on the hammer 4 and thus execute the blow. But also the use of rotary motors is possible.
- the piston 6 can be driven with a connecting rod fastened to a crankshaft and execute the impact.
- the piston 6 and / or the hammer 4 are made of metal (for example, hardened steel). Furthermore, the piston 6 and the striking piece 4 lie directly against one another when the piston 6 is pushed up against the striking piece 4, that is to say the impact occurs from metal to metal.
- Fig. 1 the front part of the piston 6 is slightly discontinued. This has, inter alia, the advantage that an upsetting of the piston 6 on the striking surface does not immediately lead to the piston 6 getting stuck in the cylinder 2, but that also still has some radial air.
- the striking piece 4 springs back from the workpiece - thus "kickback" occurs.
- the return to the cylinder 2 is damped by the sleeve 12.
- the axial recoil is predominantly caused by the collar 18, a radial kickback, as for example when the vibrating hammer 100 is placed obliquely on the workpiece, it is mainly reduced by the tubular part 17 of the bushing 12.
- the wear of the cylinder 2 and the striking piece 4 is also reduced compared with known systems in which the striking piece 4 is directly in or on the cylinder 2 is stored and there is a wear of the usually metallic contact surfaces.
- the surfaces of the hammering piece 4 and the piston 6, which touch each other during the stroke, are flat.
- the sleeve 12 is relatively soft, it can easily lead to tilting of the hammer 4, whereby the piston 6 and the hammer 4 are no longer flat on impact.
- they can also be curved, in particular spherical, executed.
- the piston 6 may have a convex surface and the striking piece a concave surface or vice versa. In this way, the piston 6 and the
- the first damping element may also be formed by a disk, which is arranged between the cylinder 2 and the piston 6 facing side 15 of the hammer 4.
- the vibrating hammer 100 is shown greatly simplified for better visualization of the invention and, for example, a return mechanism for the piston 6 in the illustration is missing (but see FIG. 3). This can be moved back, for example by means of a spring in its original position or by reversing the pressure medium, whereupon the front displacement is pressurized. Furthermore, it is noted that the pressurization in the execution of the shock in the vibrating hammer 100 shown in FIG. 1 results in that without further measures not only the piston 6, but also the cylinder 2 is pushed forward. This may well be desirable to press the hammer 4 against the workpiece.
- the cylinder 2 it is also conceivable, for example, for the cylinder 2 to be pressed out of the housing 8 with the aid of a spring in order to press the striking piece 4 against the workpiece. But it can also be provided a lock, such as a clamping screw to hold the cylinder 2 in a once set position.
- the cylinder 2 and the impact piece holder 7 in the example shown are designed as separate parts, the piston 6 being mounted in the cylinder 2 and the striking piece 4 in the striking piece holder 7.
- this is just an exemplary embodiment.
- both the piston 6 and the hammer 4 are mounted in the cylinder 2 and this is carried out in one piece or, for example, is split longitudinally.
- the vibrating hammer 100 has more parts than shown, or is divided at another point.
- FIGS. 3 and 5 now show a second example of a vibrating hammer 101, FIG. 3 showing a longitudinal section of the vibrating hammer 101, as well as a side view and a front view. 5 and an enlarged detail of the front portion of the vibrating hammer 101 is shown in FIG ..
- Fig. 4 shows the removed from the housing 8 part of the vibrating hammer 101 also shown isolated.
- the vibrating hammer 101 is of a similar construction to the vibrating hammer 100 shown in FIGS. 1 and 2.
- a return spring 19 and a holding device 20 for the vibrating hammer 101 are shown concretely.
- the vibrating hammer 101 comprises a first damping element 21, which surrounds the collar 14 of the striking piece 4 in cross-section and has a first portion 22 facing towards the cylinder 2 and a second portion 23 facing the striking surface 5.
- the first damping element 21 is constructed in one piece in this example, but this is not absolutely mandatory.
- the first damping element 21 in the region of the collar 14 has rounded edges 24 and 25.
- the collar 14 also has rounded edges in this example.
- the first damping element 21 also projects beyond the outer diameter of the cylinder 2 in this example, but this is not mandatory.
- the vibrating hammer 101 in this example further comprises a third damping element 26 between the cylinder 2 and the impact piece holder 7, which is concretely designed as an O-ring, which is advantageous but not mandatory.
- a third damping element 26 between the cylinder 2 and the impact piece holder 7, which is concretely designed as an O-ring, which is advantageous but not mandatory.
- the shock piece holder 7 is constructed in several parts (in particular two parts), wherein the rotation axis 3 of the cylinder 2 in the example shown in FIGS. 3 to 5 lies in a part plane 27 of the hammer holder 7.
- the part plane of the hammer holder 7 could also be normal to the axis of rotation 3 of the cylinder 2.
- the vibrating hammer 101 also has fourth elastic and damping elements 28 arranged on the impact piece holder 7, which hold together the parts of the multipart impact piece holder 7 and which in turn are concretely formed as an O-ring.
- O-rings 28 it is also possible to provide (open) metal rings or clips for holding together the parts of the multipart impact piece holder 7.
- FIG. 6 now shows a detail of a vibrating hammer 102, which is very similar to the vibrating hammer 101 shown in FIGS. 3 to 5.
- the first damping element 21 has a third portion 29 arranged between the cylinder 2 and the hammer holder 7, which is provided instead of the O-ring 26.
- FIG. 7 further shows a detail of a vibrating hammer 103, which is likewise similar to the vibrating hammer 101 shown in FIGS. 3 to 5.
- the striking piece 4 has a groove 30 which forms a side 15 facing the piston 6 and a side 16 facing the striking surface 5 and into which a projection 31 of the hammer piece holder 7 engages.
- the first damping element 21 encloses the projection 31 of the impact piece holder 7 in cross-section and has a first portion 22 facing the cylinder 2 and a second portion 23 facing the striking surface 5.
- the first damping element 21 has rounded edges in the region of the groove 30.
- the groove 30 has in this example corresponding rounded edges.
- the projection 31 protrudes relatively far from the main body of the impact piece holder 7, which also results in a certain spring effect, which also mitigates the repercussions on the cylinder 2.
- the protrusion 31 may also protrude less than shown, whereby the durability of the hammer holder 7 is improved.
- the inner diameter in the region of the first damping element 21 can be reduced relative to the representation in FIG.
- FIG. 8 now shows a detail of a vibrating hammer 104, which is very similar to the vibrating hammer 103 shown in FIG.
- the first damping element 21 has a third portion 29 arranged between the cylinder 2 and the impact piece holder 7, which is provided instead of the O-ring 26.
- the teaching disclosed for the vibrating hammer 100 of FIGS. 1 and 2 also applies mutatis mutandis to the vibrating hammers 101..104 shown in FIGS.
- the first and / or third and / or fourth damping element 21, 26, 28 may therefore also be made of an elastomer in the vibrating hammers 101... 104 shown in FIGS.
- the first damping element 21 may be glued to the hammer 4 and / or the cylinder 2 or be vulcanized onto this / this.
- the third and / or fourth damping element 26, 28 may be glued to the hammer holder 7 and / or the cylinder 2 or vulcanized onto this / this.
- the piston 6 and / or the hammer 4 are made of metal, and the piston 6 and the hammer 4 lie directly against each other when the piston 6 is pushed to the hammer 4 zoom.
- a contact surface of the piston 6 with the hammer 4 and a contact surface of the hammer 4 with the piston 6 may in turn be concave / convex.
- the vibrating hammers 101... 104 comprise a first damping element 21, which has a bushing-shaped or tubular section arranged between the cylinder 2 and the striking piece 4, analogous to the tubular one shown in FIGS Section 17 of the first damping element 12.
- the engaging element in the groove 30 may also be formed by an elastic disc, for example by a two-part disc made of an elastomer. Through this disc can / the shock and / or the recoil are also damped. The above is therefore also applicable to this embodiment mutatis mutandis.
- the sleeve 12 may also have an inwardly projecting collar 18 which engages in the groove 30 of the hammer 4.
- said socket 12 may also be divided into two parts.
- this teaching can also be applied in connection with the vibrating hammer 100 of FIGS. 1 and 2
- the exemplary embodiments show a possible embodiment variant of a vibrating hammer 100... 104 according to the invention, it being noted at this point that the invention is not restricted to the specifically illustrated embodiment variant thereof.
- the illustrated arrangement may in reality also comprise more or fewer components than illustrated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1096/2012A AT513442A1 (de) | 2012-10-10 | 2012-10-10 | Rüttelhammer mit Rückschlagdämpfung |
| PCT/AT2013/050201 WO2014056014A1 (de) | 2012-10-10 | 2013-10-10 | Rüttelhammer mit rückschlagdämpfung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2906375A1 true EP2906375A1 (de) | 2015-08-19 |
| EP2906375B1 EP2906375B1 (de) | 2020-09-02 |
Family
ID=49765182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13805221.2A Active EP2906375B1 (de) | 2012-10-10 | 2013-10-10 | Rüttelhammer mit rückschlagdämpfung |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2906375B1 (de) |
| CN (1) | CN104837578B (de) |
| AT (1) | AT513442A1 (de) |
| MX (1) | MX372839B (de) |
| WO (1) | WO2014056014A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2683523T3 (es) * | 2014-06-09 | 2018-09-26 | O.M.Ler 2000 S.R.L. | Martillo de extracción de núcleo o martillo neumático para extraer el núcleo de piezas de fundición con conectores traseros |
| AT519589A1 (de) * | 2017-01-24 | 2018-08-15 | Fill Gmbh | Entkernhammer zum Entkernen von Gusswerkstücken |
| WO2018152559A1 (de) * | 2017-02-24 | 2018-08-30 | Fill Gesellschaft M.B.H. | Vorrichtung und verfahren zur zerstörung eines gusskerns |
| AT15916U1 (de) * | 2017-02-24 | 2018-09-15 | Fill Gmbh | Vorrichtung zum Entkernen eines Werkstückes |
| CN106925703A (zh) * | 2017-05-06 | 2017-07-07 | 苏州微晶自动化有限公司 | 一种浇冒口气冲锤 |
| CN107160334B (zh) * | 2017-06-26 | 2020-05-19 | 程荧 | 缓冲型安全锤 |
| CN107363788B (zh) * | 2017-06-26 | 2020-05-22 | 台州市黄岩宗义模塑有限公司 | 安全锤 |
| AT522125A1 (de) | 2019-02-11 | 2020-08-15 | Fill Gmbh | Entkernhammer zum Entkernen von Gusswerkstücken |
| CN111570771B (zh) * | 2020-06-02 | 2021-06-15 | 浙江云达流体智控股份有限公司 | 一种阀门铸造起模后落砂处理装置及落砂处理方法 |
| CN111716298B (zh) * | 2020-06-28 | 2021-07-23 | 山东沂蒙工具有限公司 | 一种能够利用反冲力震荡除锈锤 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8900887U1 (de) * | 1988-01-27 | 1989-05-03 | "F. u. K." Frölich & Klüpfel Drucklufttechnik GmbH & Co KG, 5600 Wuppertal | Vorrichtung zum Entkernen von Gußstücken |
| FR2647870B1 (fr) * | 1989-06-06 | 1991-09-06 | Eimco Secoma | Appareil de percussion hydraulique avec dispositif d'amortissement des ondes de choc en retour |
| JPH0970774A (ja) * | 1995-09-06 | 1997-03-18 | Toyoda Mach Works Ltd | 打撃工具 |
| FR2742365B1 (fr) * | 1995-12-13 | 1998-01-16 | Outils Pneumatiques Globe | Ensemble pneumatique a approche et frappe combinee, unite de dessablage comportant un tel ensemble, installation de dessablage comportant une telle unite, et procede de pilotage d'une telle installation |
| EP1733850A1 (de) * | 2005-06-15 | 2006-12-20 | Caterpillar, Inc. | Stossdämpfer für den Halter eines hin- und herbeweglichen Werkzeuges |
| FR2888136B1 (fr) * | 2005-07-08 | 2007-09-14 | Outils Pneumatiques Globe Sa | Ensemble pneumatique pour installation de dessablage des noyaux de fonderie |
| NZ551876A (en) * | 2006-12-07 | 2009-06-26 | Rocktec Ltd | Breaking machine shock absorbing system |
| US9278443B2 (en) * | 2006-12-07 | 2016-03-08 | Terminator Ip Limited | Breaking machine shock absorbing apparatus |
-
2012
- 2012-10-10 AT ATA1096/2012A patent/AT513442A1/de not_active Application Discontinuation
-
2013
- 2013-10-10 EP EP13805221.2A patent/EP2906375B1/de active Active
- 2013-10-10 CN CN201380064179.0A patent/CN104837578B/zh not_active Expired - Fee Related
- 2013-10-10 WO PCT/AT2013/050201 patent/WO2014056014A1/de not_active Ceased
- 2013-10-10 MX MX2015004391A patent/MX372839B/es active IP Right Grant
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014056014A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2015004391A (es) | 2015-10-26 |
| AT513442A1 (de) | 2014-04-15 |
| CN104837578A (zh) | 2015-08-12 |
| WO2014056014A1 (de) | 2014-04-17 |
| EP2906375B1 (de) | 2020-09-02 |
| CN104837578B (zh) | 2017-08-25 |
| MX372839B (es) | 2020-06-26 |
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