Abrégé

The present invention provides a magnet, which comprises a body having a first and a second section, and a slide arranged to be movable relative to the body between a first and a second position. The slide comprises a permanent magnet, and a first and a second pole piece that are attached to opposite magnetic pole surfaces of the permanent magnet. The first section comprises a hole that opens into a first cavity of the body, the bottom of the first cavity being delimited at least partly by the second section. The slide is movably arranged in the hole so that the second pole piece is directed towards the bottom of the first cavity, wherein at the first position of the slide, magnetic flux generated by the permanent magnet is short-circuited by the first section, and at the second position of the slide, magnetic flux generated by the permanent magnet is directed through the first and the second section.

Classes IPC  ?

• B66C 1/04 - Éléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens magnétiques
• H01F 7/02 - Aimants permanents
• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
• B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p. ex. porte-pièces magnétiques, porte-pièces utilisant le vide
• H01H 36/00 - Interrupteurs actionnés par la variation du champ magnétique ou champ électrique, p. ex. par le changement de la position relative d'un aimant et d'un interrupteur, par écran
• H01F 7/04 - Moyens pour libérer la force attractive
• H01F 7/16 - Armatures à mouvement rectiligne
• G01D 5/12 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques

Abrégé

The present invention relates to a magnet, which comprises a body and a slide that is movably arranged inside a cavity of the body. The slide that comprises a permanent magnet is moved relative to the body by transferring a medium into and out of the cavity. The invention also relates to a method for handling metal sheets.

Classes IPC  ?

• H01F 7/20 - Électro-aimantsActionneurs comportant des électro-aimants sans armature
• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive
• B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p. ex. porte-pièces magnétiques, porte-pièces utilisant le vide
• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
• G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
• G01R 33/09 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs magnéto-résistifs

Abrégé

The present invention relates to a magnet, which comprises a body and a slide arranged to be movable relative to the body between a first and a second position. The slide comprises a permanent magnet, and a cylindrical first pole piece and a second pole piece, which are attached to opposite magnetic pole surfaces of the permanent magnet. The body comprises a first and a second section made of magnetic material and being separated from each other by a third section that is made of non-magnetic material. The first section comprises a cylindrical recess into which the slide is movably arranged so that, at the first position of the slide, the cylindrical first pole piece, the permanent magnet and at least part of the second pole piece are located inside the cylindrical recess, and at the second position of the slide, at least part of the cylindrical first pole piece is located inside the cylindrical recess and the second pole piece is located outside the cylindrical recess.

Classes IPC  ?

• B66C 1/04 - Éléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens magnétiques
• H01F 7/02 - Aimants permanents
• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
• B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p. ex. porte-pièces magnétiques, porte-pièces utilisant le vide

Abrégé

The present invention relates to a magnet that comprises a body (101) and a slide (102) arranged to be movable relative to the body (101) between a first and a second position. The movement of the slide (102) is limited by a first and a second section (104, 105) of the body (101) in such a manner that at the first position of the slide (102), the second pole piece (109) is in contact with the first section (104), and at the second position of the slide (102), the second pole piece (109) is in contact with the second section (105).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive

Abrégé

The present invention relates to a magnet (100), which comprises a body (102) and a first slide (101) arranged to be movable relative to the body (102) between a first and a second position. The first slide (101) comprises a first permanent magnet (106), and a first and a second pole piece (107, 108) attached to opposite magnetic pole sur- faces of the first permanent magnet (106). The body (102) comprises a first and a second plate (103, 104), which are arranged in parallel and at a first distance from each other. The second plate (104) comprises a first through hole (109), in which the first slide (101) is movably arranged so that the first pole piece (107) is directed towards the first plate (103), wherein at the first position of the first slide (101), the first pole piece (107) is located outside the first through hole (109) and at least part of the second pole piece (108) is located inside the first through hole (109), and at the second position of the first slide (101), the first permanent magnet (106) and at least part of the first and the second pole piece (107, 108) are located inside the first through hole (109).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive

Abrégé

The present invention provides a magnet (100), which comprises a body (101) having a first and a second section (103, 104), and a slide (108) arranged to be movable relative to the body (101) between a first and a second position. The slide (108) comprises a permanent magnet (109), and a first and a second pole piece (110, 111) that are attached to opposite magnetic pole surfaces of the permanent magnet (109). The first section (103) comprises a hole (106) that opens into a first cavity (107) of the body (101), the bottom of the first cavity (107) being delimited at least partly by the second section (104). The slide (108) is movably arranged in the hole (106) so that the second pole piece (111) is directed towards the bottom of the first cavity (107), wherein at the first position of the slide (108), magnetic flux generated by the permanent magnet (109) is short-circuited by the first section (103), and at the second position of the slide (108), magnetic flux generated by the permanent magnet (109) is directed through the first and the second section (103, 104).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive
• H01F 7/16 - Armatures à mouvement rectiligne

Abrégé

The present invention relates to a magnet, which comprises a body (102) and a slide (101) arranged to be movable relative to the body (102) between a first and a second position. The slide (101) comprises a permanent magnet (103), and a cylindrical first pole piece (104) and a second pole piece (105), which are attached to opposite magnetic pole surfaces of the permanent magnet (103). The body (102) comprises a first and a second section (107, 108) made of magnetic material and being separated from each other by a third section (109) that is made of non-magnetic material. The first section (107) comprises a cylindrical recess (110) into which the slide (101) is movably arranged so that, at the first position of the slide (101), the cylindrical first pole piece (104), the permanent magnet (103) and at least part of the second pole piece are located inside the cylindrical recess (110), and at the second position of the slide (101), at least part of the cylindrical first pole piece (104) is located inside the cylindrical recess (110) and the second pole piece (105) is located outside the cylindrical recess (110).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive

Abrégé

The present invention relates to a magnet, which comprises a body (101) and a slide (102) that is movably arranged inside a cavity (111) of the body (101). The slide (102) that comprises a permanent magnet (114) is moved relative to the body (101) by transferring a medium into and out of the cavity (111). The invention also relates to a method for handling metal sheets (301).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive

Abrégé

The present invention relates to a magnet (100), which comprises a body (101) and a slide (110) that is arranged to be movable relative to the body (101). The slide (110) comprises a permanent magnet (111), and a first and a second pole piece (112, 113) that are attached to opposite magnetic pole surfaces of the permanent magnet (111). The body (101) comprises a first and a second section (103, 104) made of magnetic material for directing magnetic flux to an object (200) to be attached. The first and the second section (103, 104) are separated and attached to a third section (105) of the body (101), which third section (105) is made of non-magnetic material. The first section (103) comprises a hole (106) that opens at a first end into a first cavity (107) and at a second end into a second cavity (108) of the body (101), the first and the second cavity (107, 108) containing a medium. The magnet (100) further comprises means (116, 117, 118, 119, 120) for transferring the medium into and out of the first and the second cavity (107, 108) in order to move the slide (110) that is movably arranged in the hole (106). The invention also relates to a method for handling metal sheets (200).

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/04 - Moyens pour libérer la force attractive

Produits et services

Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs; automatic vending machines; agricultural elevators; air cushion devices for moving loads; blade holders; capstans; cranes; derricks; elevating apparatus; elevator belts; elevator chains; elevator operating apparatus; elevators; holding devices for machine tools; lifting apparatus; lifts, other than ski-lifts; pulleys; waggon lifts; winches. Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; compact discs, DVDs and other digital recording media; mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment, computers; computer software; fire-extinguishing apparatus; electric accumulators; electric batteries; battery chargers; electric coils; magnets. Building construction; repair; installation services; rental of lifting equipment.

Produits et services

Machines and machine tools for ferrite material holding and lifting; [ motors and engines except for land vehicles; machine coupling and transmission components except for land vehicles; agricultural elevators; air cushion devices in the nature of machines for moving loads; machine parts, namely, blade holders; capstans; cranes; derricks; elevating apparatus, namely, elevating work platforms; elevator belts; elevator chains being parts of machines; elevator operating apparatus in the nature of elevator gears; elevators; ] holding devices for machine tools, namely, machine parts, namely, work holding fixtures for machining, assembly, welding and sheet metal applications; lifting apparatus; [ lifts, other than ski-lifts, namely, mechanical and hydraulic lifts; pulleys being parts of machines; power-operated lifts for moving, parking and storing waggons; winches ] [ Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments comprising magnetic field sensor; electromagnetic apparatus used to generate or measure magnetic fields; cash registers, calculating machines, data processing equipment, computers; computer software for controlling magnetics for holding and lifting applications; electric accumulators; ] electric batteries; battery chargers; [ electric coils; ] magnets [ Building construction; repair of magnets and magnet assemblies for lifting and holding; installation services of magnets and magnet assemblies for lifting and holding; rental of lifting equipment for use in the field of metal working industry and construction industry ]

Abrégé

The invention relates to a magnet (1, 8), which comprises a first permanent magnet (24) for creating a magnetic field, and a shell (19, 47) and a centre (22), which are arranged to guide a magnetic flux to an object (33) to be gripped. The magnet (1, 8) further comprises a slide (30), which is arranged to be movable in relation to the shell (19, 47) and the centre (22), which slide (30) comprises said first permanent magnet (24), and an electric magnet (29) for moving the slide (30). The invention also relates to an attaching device (10), and attaching arrangement and a method for attaching to an object.

Classes IPC  ?

• H01F 7/02 - Aimants permanents
• H01F 7/20 - Électro-aimantsActionneurs comportant des électro-aimants sans armature
• H01F 7/16 - Armatures à mouvement rectiligne

Abrégé

The invention relates to an attaching device (10), an arrangement and a method for attaching an object to be worked to a working base. The attaching device comprises: - a first holding means, i.e. a first magnet (8), in the first end of the attaching device (10), for attaching the attaching device (10) to the working base or to another attaching device or to the object to be worked; - a second holding means, i.e. second magnet (1 ), in the second end of the attaching device (10), for attaching the attaching device (10) to the working base or to another attaching device or to the object to be worked; - control means for controlling the holding forces produced by the first and second holding means, such as magnets.

Classes IPC  ?

• B23Q 3/154 - Dispositifs stationnaires
• H01F 7/00 - Aimants