Abrégé

A pile driver capable of vertically constructing a pile according to the present invention is provided with: a driver housing; a vibrating body supported in the driver housing by an elastic support unit and provided with a vibration-generating unit that generates vibrations for constructing the pile; a side grip part, installed on a side surface of the vibrating body, for gripping the pile; a coupling bracket installed in the driver housing; and a vibration direction-regulating unit installed in the driver housing and vibrating body so as to guide the vibration direction of the vibrating body in the vertical direction.

Classes IPC  ?

• E02D 7/18 - Mise en place par vibration
• E02D 13/04 - Dispositifs de guidageCadres de guidage
• E02D 5/28 - Pieux préfabriqués en acier
• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
• E02F 9/22 - Entraînements hydrauliques ou pneumatiques

Produits et services

Excavators; grapple for excavators; vibro rippers for excavators; buckets for excavators; rotary cutters for excavators; rippers for excavators; vibro drill for excavators; vibro buckets for excavators; vibro breakers for excavators; breakers for excavators; shear for excavators; auger drill for excavators; shock absorbers for excavators; compactor for excavators; quick coupler for excavators; crusher for excavators; telescopic boom for excavators; vibro hammers; pile drivers.

Abrégé

A low-noise vibration rock drill according to the present invention comprises: a main body part having a sound-insulation space therein and having a support-coupling part at one end portion thereof; a drifter, which is supported by a forward/backward transfer unit in the sound-insulation space of the main body part to move forward and backward in the sound-insulation space; a rod provided in the drifter so as to be inserted into and withdrawn from the sound-insulation space of the main body part; a low-noise rod sealing unit having a base member, which has a through-hole corresponding to a rod-withdrawing hole of the main body part, and a housing member, which is supported by the base member to be suspended by means of an elastic member for preventing the vibration of the rod from being transmitted to the main body part and has a rod-supporting part for slidably and rotatably supporting the rod; and a vibration generation unit which is provided in the main body part to create a vacuum inside the sound-insulation space and which suctions external air to cool the drifter.

Classes IPC  ?

• E21B 7/02 - Appareils de forage caractérisés par des moyens de transport terrestre, p. ex. montés sur des patins ou des roues
• E21B 4/00 - Moyens d'entraînement dans le trou de forage
• E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation

Abrégé

A vacuum breaker according to the present invention comprises: a cylinder unit including a piston that is reciprocally moved; a breaker unit provided with a chisel for breaking, which is slidably supported, and a front head having a striking chamber for striking the chisel by using the piston of the cylinder unit; a breaker housing surrounding the breaker unit for forming a vacuum chamber; a vacuum generation unit which is installed in the breaker housing and maintains the vacuum chamber in the vacuum state; and a cooling unit which cools down striking portions of the piston and the chisel by supplying the external air to the striking chamber of the breaker unit that is surrounded by the breaker housing and cools down the breaker unit by allowing the cooled air to be discharged through the vacuum chamber.

Classes IPC  ?

• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
• F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
• G10K 11/16 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
• F16J 15/3232 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre ayant plusieurs lèvres
• F16J 15/324 - Agencements pour graissage ou refroidissement du joint d’étanchéité lui-même

Abrégé

Disclosed in the present invention are an auxiliary boom unit for a pile driver and a method for pulling out and driving a pile using same. The auxiliary boom unit comprises: an auxiliary boom having a coupling unit coupled to a boom of an excavator; a slider installed to slide along the auxiliary boom; a pile driving unit rotationally installed in a bracket portion of the slider; and a lifting unit supported by the coupling unit or the auxiliary boom so as to lift the slider along the auxiliary boom.

Classes IPC  ?

• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
• E02D 9/02 - Enlèvement de rideaux de palplanches, de pieux, de tubages ou d'autres coffrages par arrachage
• E02D 7/06 - Sonnettes mécaniques
• E02D 11/00 - Procédés ou appareils permettant à la fois la mise en place et l'enlèvement de rideaux de palplanches, de pieux ou de tubages
• E02F 3/30 - DraguesEngins de terrassement entraînés mécaniquement avec des outils excavateurs montés sur un bras plongeur ou à godets, p. ex. plongeurs, godets et bras plongeur pivotant sur une poutre en porte à faux

Abrégé

The present invention relates to an excavator bucket provided with a roller unit for carrying out work while detachably coupled to an excavator, and provides an excavator bucket provided with a roller unit and comprising: a main body having an excavation surface at the lower part of an accommodating space for accommodating earth and sand, the excavation surface coming into contact with the ground; and the roller unit which is formed in a cylindrical shape and coupled so as to be rotatable on the main body and rotates with a part of the circumference-based outer surface thereof protruding from the excavation surface, wherein the roller unit is configured to rotate while pressed by the excavator and in contact with the ground and thus allow compaction work without a separate replacement.

Classes IPC  ?

• E02F 3/40 - PlongeursAuges
• E02F 3/407 - PlongeursAuges avec dispositif d'évacuation
• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents

Abrégé

A vibratory pile driver of the present invention comprises: an inner vibration body part having a hollow part into which a pile is inserted; a middle body part which surrounds the outer circumferential surface of the inner vibration body part and is supported by a vibration supporting unit such that an inner vibration body can vibrate; a bearing unit, which is installed between the middle body part and an outer body part, for rotatably supporting the middle body part with respect to the outer body part; a pile clamp unit, which is installed on the bottom of the inner vibration body part, for clamping the pile inserted into the hollow part; a vibration generating unit, which is installed on the bottom of the inner vibration body part, for providing a vibrating force for hammering or withdrawing the pile; a first rotational drive part, which is installed between the middle body part and the outer body part, for enabling the middle body part to rotate or reverse-rotate with respect to the outer body part; a coupling unit which is installed on the outer body part and rotates by means of a bucket hydraulic cylinder installed on a boom of an excavator; and a second rotational drive part, which is installed on the coupling unit and the outer body part, for rotating the outer body part with respect to the coupling unit.

Classes IPC  ?

• E02D 7/18 - Mise en place par vibration
• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
• E02F 9/22 - Entraînements hydrauliques ou pneumatiques

Abrégé

According to the present invention, a linearly movable vibration ripper is disclosed. The linearly movable vibration ripper comprises: a main body part; a coupling bracket, provided so as to be rotatable in the main body part, for the coupling with a boom of an excavator; a vibrator coupled to the main body part and a vibrator support unit and vibrating; a vibration generating unit provided in the vibrator; and a ripper blade provided in the vibrator, wherein a buffer unit is provided in the vibrator and a frontward and backward unit, for forwardly/backwardly moving the vibrator and the ripper blade provided in the vibrator, is provided between the buffer unit and the main body part.

Classes IPC  ?

• E02F 5/32 - Outils à défoncer
• E02F 3/28 - DraguesEngins de terrassement entraînés mécaniquement avec des outils excavateurs montés sur un bras plongeur ou à godets, p. ex. plongeurs, godets
• E02F 3/36 - Éléments constitutifs
• E21D 9/10 - Exécution en utilisant des machines à forer ou à inciser
• E21D 13/00 - Vastes chambres souterrainesProcédés ou appareils pour leur exécution

Produits et services

Excavators; pile drivers; vibratary pile drivers; vibro rippers for excavators; vibro breakers for excavators; auger drills for excavators; vibro drills for excavators; breakers for excavators; rippers for excavators; buckets for excavators; shock absorbers for excavators; vibro buckets for excavators; telescopic booms for excavators; crushers for excavators; shears for excavators; grapples for excavators; quick couplers for excavators; compactors for excavators; attachments for excavators, including, loader buckets for excavators, vibro cutters, tilt hammers, pulverizers, sliding booms, vibro plates, rock drills, concrete vibrators, vibro hammers, drum cutters, auger vibro hammers, telescopic hammers.

Abrégé

Provided is a vibration damper for a high load, including: a vibration body support portion having first shaft support portions; rotation shafts that are rotatably installed at the first shaft support portions, have eccentric portions eccentric with respect to rotation centers of the rotation shafts and are spaced a predetermined gap from each other; a support portion having second shaft support portions on which the eccentric portions are rotatably supported; an elastic member that is installed between the vibration body support portion and the support portion or between the vibration body support portion and the second shaft support portions and that elastically supports the support portion with respect to the vibration body support portion in an upward direction; and a rotation synchronization unit that is installed at the rotation shafts so as to synchronize rotation directions of the rotation shafts according to vibration. The vibration damper for a high load can be applied to various construction machines, and excavators and can prevent vibration generated from various attachments from being transferred to a boom or car body of an excavator or a construction machine.

Classes IPC  ?

• F16F 15/08 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif utilisant des moyens élastiques avec ressorts en caoutchouc
• E02F 5/32 - Outils à défoncer
• E02F 3/36 - Éléments constitutifs
• E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents

Abrégé

A vibrating assembly having a rotating member, according to the present invention, has: a main body portion; and a vibrating body which is coupled to the main body portion and a vibrating body support unit and vibrates, wherein the vibrating body support unit has a rotating member rotatably provided on the vibrating body or the main body portion for supporting the vibrating body and has first and second connecting members which are rotatably connected to the upper and lower sides of the rotating member, with respect to the rotating center of same, and to the main body portion or the vibrating body, respectively such that the vibrating body can be supported in accordance with the main body portion, thereby, when the vibrating body vibrates in accordance with the main body portion, offsetting, by means of the rotating of the rotating member, the change in coupling positions of the first and second connecting members and the vibrating body due to the vibration.

Classes IPC  ?

• F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif

Abrégé

The high load vibration arrestor of the present invention comprises: a vibration body support part having first bearing parts; rotating shafts rotationally provided to the bearing parts, having eccentric parts which are eccentric with respect to the rotation centers of the rotating shafts, and spaced from each other at predetermined intervals; second brackets having second bearing parts for rotationally supporting the eccentric parts; an attachment main body; elastic members provided between the first and second brackets or between the vibration body support part and the second bearing parts so as to elastically bias the second brackets with respect to the vibration body support part in the upward direction; and rotation synchronization units provided to the rotating shafts so as to synchronize the rotation directions of the rotating shafts according to the vibration. The high load vibration arrestor, according to the present invention, can be applied to various construction equipment, excavators, and the like and can prevent the vibration generated from various attachments and the like from being transmitted to the excavator or the boom of the construction equipment or the vehicle body.

Classes IPC  ?

• E02F 5/30 - Dispositifs annexes, p. ex. pour dégeler, défoncer, faire éclater, ou pour d'autres traitements préparatoires du sol
• E02F 3/36 - Éléments constitutifs
• E02F 5/32 - Outils à défoncer

Abrégé

According to the present invention, a polyurethane-based cement composite, and a preparation method thereof comprise the following steps: mixing 50-70 parts by weight of a cement powder and 10-30 parts by weight of a powdered additive to prepare a cement mixture powder; mixing an isocyanate and a polyol in a ratio of 1:0.5 by weight, and mixing 0.5-9.99 parts by weight of a foaming agent on the basis of 100 parts by weight of the amount of the isocyanate and the polyol so as to prepare a foaming solution; and mixing the cement mixture powder and the foaming solution and mixing other additives, and pressing and foaming the obtained mixture. The polyurethane-based cement composite and the preparation method thereof according to the present invention can improve freezing in a conventional wet method due to the decrease in temperature, enable construction with uniform bubble creation and specific gravity irrespective of the skill of a contractor, and reduce cracks due to shrinkage, thereby uniformly maintaining sound insulation and heat insulation. Furthermore, on-site construction can be carried out, thereby shortening a construction period, and the load of a material is reduced, thereby enabling construction of high-rise buildings, and thus the utilization and economical efficiency of the present invention are high.

Classes IPC  ?

• C04B 38/02 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation par addition d'agents chimiques gonflants
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 24/08 - GraissesHuiles grassesCires du type esterAcides gras supérieurs, c.-à-d. ayant au moins sept atomes de carbone dans une chaîne linéaire, liés à un groupe carboxyleGraisses ou huiles oxydées
• C04B 14/28 - Carbonates de calcium