公开(公告)号：US11931847B2

公开(公告)日：2024-03-19

申请号：US17044647

申请日：2019-03-27

Applicant: SMC CORPORATION

Inventor： Hisashi Yajima ,  Motohiro Sato ,  Tsuyoshi Sasaki ,  Koji Hara ,  Kouichirou Kanda

IPC: B23Q3/154 ,  B25J15/06 ,  H01F7/02

CPC classification number: B23Q3/1546 ,  B25J15/0608 ,  H01F7/0257 ,  H01F7/02

Abstract: A magnet chuck has a piston assembly including a tube shaped permanent magnet and a core yoke able to move on the interior of a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke, is magnetized in the radial direction, and a magnetic sensor is attached to the side surface of the cylinder tube.

公开(公告)号：US12083668B2

公开(公告)日：2024-09-10

申请号：US17196125

申请日：2021-03-09

Applicant: SMC CORPORATION

Inventor： Koji Hara ,  Tsuyoshi Sasaki

IPC: B25J15/04 ,  B25J15/02 ,  B25J15/08

CPC classification number: B25J15/0475 ,  B25J15/0266 ,  B25J15/083 ,  B25J15/0273

Abstract: An air chuck includes: a finger support part including a pair of fingers and a pair of lock shafts; a chuck main body part including an operation mechanism operable to open and close the fingers; and linking mechanisms that detachably link the finger support part to the chuck main body part. Each of the linking mechanisms causes the corresponding lock shaft to shift to a non-lock position so as to render the pair of fingers capable of being opened and closed when the finger support part is linked to the chuck main body part. Each of the linking mechanisms causes the corresponding lock shaft to shift to a lock position and locks the pair of fingers so as to render the pair of fingers incapable of being opened and closed when the finger support part is detached from the chuck main body part.

公开(公告)号：US12064866B2

公开(公告)日：2024-08-20

申请号：US17196139

申请日：2021-03-09

Applicant: SMC CORPORATION

Inventor： Koji Hara ,  Tsuyoshi Sasaki

IPC: B25J15/04 ,  B25J15/02

CPC classification number: B25J15/0475 ,  B25J15/0266 ,  B25J15/0273

Abstract: An air chuck includes: a finger support part including a pair of fingers; a chuck main body part including an operation mechanism operable to open and close the pair of fingers; and linking mechanisms that detachably link the finger support part to the chuck main body part. The linking mechanisms each include: a linking shaft that extends from the finger support part; a shaft insertion hole formed in a body of the chuck main body part; a catch body that becomes elastically caught on a catch surface of the linking shaft when the linking shaft is inserted into the shaft insertion hole; and a delinking member that is manually operated so as to release the catch body caught on the catch surface when the finger support part is detached from the chuck main body part.

公开(公告)号：US11772215B2

公开(公告)日：2023-10-03

申请号：US17044597

申请日：2019-03-27

Applicant: SMC CORPORATION

Inventor： Hisashi Yajima ,  Motohiro Sato ,  Tsuyoshi Sasaki ,  Koji Hara ,  Kouichirou Kanda

IPC: B23Q3/154 ,  H01F7/02

CPC classification number: B23Q3/1546 ,  H01F7/0252 ,  B23Q2703/02

Abstract: A magnetic chuck has a piston assembly that contains a cylindrical permanent magnet and a core yoke. The piston assembly is movable inside a cylinder tube. The permanent magnet is provided on the outer periphery of the core yoke and is magnetized in the radial direction.

公开(公告)号：USD894247S1

公开(公告)日：2020-08-25

申请号：US29639917

申请日：2018-03-09

Applicant: SMC CORPORATION

Designer： Koichiro Ishibashi ,  Koji Hara ,  Tsuyoshi Sasaki

公开(公告)号：US10195722B2

公开(公告)日：2019-02-05

申请号：US14960925

申请日：2015-12-07

Applicant: SMC Corporation

Inventor： Kouichirou Kanda ,  Tsuyoshi Sasaki ,  Hisashi Yajima

IPC: B25B11/00 ,  B23Q3/154

Abstract: A magnet chuck includes a piston that is displaced inside a second sliding hole of a cylinder tube. One end surface of the piston abuts against a plate member when the piston reaches one displacement end point, whereas another end surface of the piston abuts against an entry member of a head cover when the piston reaches another displacement end point. At least one, and preferably both, of a first damper on the one end surface, and the second damper on the other end surface are disposed on the plate member.

公开(公告)号：US09905346B2

公开(公告)日：2018-02-27

申请号：US14960561

申请日：2015-12-07

Applicant: SMC Corporation

Inventor： Hisashi Yajima ,  Tsuyoshi Sasaki ,  Kouichirou Kanda

IPC: B66C1/04 ,  H01F7/02 ,  B23Q3/154 ,  B25B11/00

CPC classification number: H01F7/0252 ,  B23Q3/1546 ,  B25B11/002 ,  B66C1/04 ,  H01F7/0257

Abstract: A magnet chuck includes, for example, four permanent magnets of a first permanent magnet through a fourth permanent magnet, serving as an attracting and retaining member for attracting and retaining a workpiece. In the first permanent magnet and the third permanent magnet, the magnetic polarity of a workpiece magnetic attracting surface facing the workpiece is of an N-polarity. On the other hand, in the second permanent magnet and the fourth permanent magnet, the magnetic polarity of a workpiece magnetic attracting surface is of an S-polarity. More specifically, in this case, combinations of the N-pole and the S-pole on the workpiece magnet attracting surface are formed in two pairs, and the N-pole and the S-pole, which are of different polarities, are adjacent to one another.

公开(公告)号：US20160189844A1

公开(公告)日：2016-06-30

申请号：US14960561

申请日：2015-12-07

Applicant: SMC Corporation

Inventor： Hisashi YAJIMA ,  Tsuyoshi Sasaki ,  Kouichirou Kanda

IPC: H01F7/02

CPC classification number: H01F7/0252 ,  B23Q3/1546 ,  B25B11/002 ,  B66C1/04 ,  H01F7/0257

Abstract: A magnet chuck includes, for example, four permanent magnets of a first permanent magnet through a fourth permanent magnet, serving as an attracting and retaining member for attracting and retaining a workpiece. In the first permanent magnet and the third permanent magnet, the magnetic polarity of a workpiece magnetic attracting surface facing the workpiece is of an N-polarity. On the other hand, in the second permanent magnet and the fourth permanent magnet, the magnetic polarity of a workpiece magnetic attracting surface is of an S-polarity. More specifically, in this case, combinations of the N-pole and the S-pole on the workpiece magnet attracting surface are formed in two pairs, and the N-pole and the S-pole, which are of different polarities, are adjacent to one another.

Abstract translation: 磁体卡盘例如包括通过第四永磁体的第一永磁体的四个永磁体，用作吸引和保持工件的吸引保持部件。 在第一永久磁铁和第三永久磁铁中，与工件相对的工件磁吸引面的磁极为N极。 另一方面，在第二永久磁铁和第四永久磁铁中，工件磁性吸引面的磁极为S极。 更具体地说，在这种情况下，工件磁铁吸引面上的N极和S极的组合形成为两对，并且具有不同极性的N极和S极相邻 另一个。

公开(公告)号：US12151368B2

公开(公告)日：2024-11-26

申请号：US17634125

申请日：2020-08-07

Applicant: SMC CORPORATION

Inventor： Kouichirou Kanda ,  Koji Hara ,  Tsuyoshi Sasaki

IPC: B25J15/08 ,  B23B31/16 ,  B25J15/02 ,  B25J15/04

Abstract: An air chuck includes a chuck unit including a pair of fingers that capable of being freely opened and closed, an operation unit that includes an operation mechanism, which opens and closes the pair of fingers, connection mechanisms for attaching the chuck unit to the operation unit such that the chuck unit is freely attachable and detachable to and from the operating unit, and a locking mechanism that locks the pair of fingers such that the pair of fingers are capable of being freely opened and closed when the chuck unit is attached to the operation unit and such that the pair of fingers are not able to be opened or closed when the chuck unit is detached from the operation unit.