公开(公告)号：US11923135B2

公开(公告)日：2024-03-05

申请号：US17631483

申请日：2020-07-16

Applicant: KOSMEK LTD.

Inventor： Ryota Kojima

IPC: H01F7/04 ,  F16B2/06

CPC classification number: H01F7/04 ,  F16B2/06

Abstract: Provided is a magnetic clamp device having a disassembly structure that is easy to maintain. In the magnetic clamp device 1, a magnetic pole 21 and an alnico magnet 23 each have fastening holes 21a, 23a that communicate with each other. The cavity portion 31 of the plate body 3 has an opening 33 that penetrates from the bottom surface 32b thereof to the back side of the plate body 3. A cap 7 having a base portion 71 having a bolt hole 74 communicating with the fastening holes 21a, 23a and a flange portion 72 abutting the surface 3b of the back side of the plate body 3 is inserted into the opening 33. A bolt 8 inserted into the fastening hole 23a of the magnetic pole 21 and the alnico magnet 23 from the front side of a magnetic pad 2 is screwed into a female screw thread 74a provided in the bolt hole 74 of the cap 7.

公开(公告)号：US11572903B2

公开(公告)日：2023-02-07

申请号：US17415765

申请日：2020-01-30

Applicant: KOSMEK LTD.

Inventor： Keitaro Yonezawa

IPC: F15B15/26 ,  F16K11/22

Abstract: An output member (7) is inserted in a housing (5) so as to be movable in a left-right direction. A lock chamber (20) is provided to the right of the output member (7), as a first actuation chamber. Compressed air is supplied to and discharged from the lock chamber (20) through a first supply and discharge passage (24) provided in the housing (5). A first holding valve (30) provided to an intermediate portion of the first supply and discharge passage (24) is configured to close and open the first supply and discharge passage (24).

公开(公告)号：US20220371137A1

公开(公告)日：2022-11-24

申请号：US17771952

申请日：2020-10-13

Applicant: KOSMEK LTD.

Inventor： Yosuke HARUNA

IPC: B23Q3/08 ,  B25J15/04

Abstract: When an operation portion (38) provided at an axial end portion of a valve member (37) is pushed into a valve case (31) provided to a first block (3), a clamping apparatus transitions from a first state, in which communication between: each of a primary-side pressure fluid supply/discharge port (34) and a secondary-side pressure fluid supply/discharge port (35); and a pressure fluid discharge port (36) is open, to a second state, in which communication between: each of the primary-side pressure fluid supply/discharge port (34) and the secondary-side pressure fluid supply/discharge port (35); and the pressure fluid discharge port (36) is closed.

公开(公告)号：US20220362895A1

公开(公告)日：2022-11-17

申请号：US17770743

申请日：2020-10-08

Applicant: KOSMEK LTD.

Inventor： Noriaki OKUMURA

IPC: B23P19/04 ,  F16B21/16

Abstract: A base plate (21) is attached to a side wall surface of a pallet (P). A connecting rod (22) provided so as to protrude from the base plate (21) is configured to be movable on a surface (21a) of the base plate (21). An insertion hole (18) is provided in a housing (1) attached to a robot arm (R), and the connecting rod (22) is inserted in the insertion hole (18). Two pins (23 and 24) extending in parallel to an axial direction of the connecting rod (22) are provided so as to protrude from the base plate (21). The pins (23 and 24) are respectively inserted in support holes (19 and 20) of the housing (1).

公开(公告)号：US11471989B2

公开(公告)日：2022-10-18

申请号：US17047784

申请日：2019-04-09

Applicant: KOSMEK LTD.

Inventor： Yosuke Haruna

IPC: B23Q3/18 ,  B25J15/06 ,  B23Q3/08 ,  B23Q7/04

Abstract: An embodiment of the present invention simplifies the configuration of a suction positioning device. An embodiment of the present invention includes: an output rod (3) having an air discharge passage (11); a sleeve (4) which has a tapered outer circumferential surface (12) and is elastically deformable so as to have a reduced diameter; a transmission member (5) having a tapered inner circumferential surface (13); a plurality of balls (B) which are inserted between the tapered inner circumferential surface (13) and the tapered outer circumferential surface (12); and a suction pad (7) attached to the output rod (3) so as to communicate with the air discharge passage (11).

公开(公告)号：US11305389B2

公开(公告)日：2022-04-19

申请号：US16757017

申请日：2018-10-15

Applicant: KOSMEK LTD.

Inventor： Ryota Kojima

IPC: B23Q3/06 ,  B25B5/16

Abstract: An output rod (20) of an electric clamping device includes: a tubular power transmission member (25) screw-connected to a decelerator (6); and an output rod main body (24) disposed radially inward of an inner peripheral surface of a cylindrical hole of the power transmission member (25) with a clearance between the output rod main body (24) and the inner peripheral surface. The output rod (20) further includes: a rotation preventing mechanism (26); a lock-side driving mechanism (27, 42), a release-side driving mechanism (28), and an output rod guide mechanism (29).

公开(公告)号：US11255357B2

公开(公告)日：2022-02-22

申请号：US15734242

申请日：2019-05-20

Applicant: KOSMEK LTD.

Inventor： Masahiro Yoshimi

IPC: F15B15/28 ,  B23Q3/06 ,  B23Q3/08 ,  B23Q17/00 ,  F15B15/06 ,  F15B15/14 ,  F16H25/12

Abstract: The present invention makes a rotary movement smooth, the rotary movement allowing direct detection of the movement of an output member of a rotary clamp. In a clamp, an output member is accommodated in a cylinder hole. A first valve chamber, to which compressed air is supplied, is provided between a lower wall of a housing and the output member. A second valve chamber is a hollowed out portion of the output member so as to be provided open toward the first valve chamber. A valve rod is inserted into the second valve chamber from the lower wall. A valve rod passage that allows the second valve chamber to communicate with outside air is provided in the valve rod, and a seal section is provided in a peripheral gap where the valve rod and the second valve chamber move relatively to one another. The gap is formed so that, as the valve rod and the second valve chamber are in relative movement, there is a region which is sealed by the seal section against movement of the compressed air through the gap between the valve rod and the second seal chamber and the there is a region which is open from the seal.

公开(公告)号：US11242872B2

公开(公告)日：2022-02-08

申请号：US17267822

申请日：2019-10-04

Applicant: KOSMEK LTD.

Inventor： Ryuichi Wada

IPC: F15B15/14 ,  B25B5/06 ,  F15B11/036

Abstract: A cylinder device includes: a first piston (8) inserted in a first cylinder hole (4) so as to be movable in an axial direction, a piston rod (7) being hermetically inserted in the first piston (8), the first piston (8) being fixed to the piston rod (7); a second piston (10, 37) inserted in a second cylinder hole (5) so as to be movable in the axial direction, the piston rod (7) being inserted in the second piston (10, 37); and a partition wall (13) dividing a cylinder hole (6) into the first cylinder hole (4) and the second cylinder hole (5), the partition wall (13) being movable in the axial direction.

公开(公告)号：US11174959B2

公开(公告)日：2021-11-16

申请号：US16648357

申请日：2018-09-14

Applicant: KOSMEK LTD.

Inventor： Akira Arisato

IPC: F16K27/02 ,  F16K17/196 ,  F16K1/36 ,  F16K15/02 ,  F15B15/20

Abstract: An actuation chamber (2) provided in a housing (1) is communicatively connected to a supply and discharge port (6) via a pressurized oil supply and discharge passage (7). A valve case (11) of a sequence valve (10) is attached to an attachment hole (8) provided at an intermediate portion of the supply and discharge passage (7). A valve seat (25) is provided in a cylindrical hole (20) provided in the valve case (11). A valve member (26) is biased leftward toward the valve seat (25) by a pressure-setting spring (31). When pressure of pressurized oil supplied to a first portion of the supply and discharge passage (7) which is close to the supply and discharge port (6) exceeds a set pressure, the pressurized oil moves the valve member (26) rightward for valve opening, against the pressure-setting spring (31).

公开(公告)号：US20210199195A1

公开(公告)日：2021-07-01

申请号：US16756646

申请日：2018-10-01

Applicant: KOSMEK LTD.

Inventor： Ryota KOJIMA

IPC: F16J10/00

Abstract: A piston (6) is hermetically inserted via a sealing member (7) in a cylinder hole (2) provided in a housing (1) so that the piston (6) is movable in an up-down direction. A communication passage (21) provided in an inner peripheral wall of the cylinder hole (2) is communicatively connected to a lock-side supply and discharge passage (13) through which pressurized oil is supplied to and discharged from a lock chamber (11) of the housing (1). An opening area (S1) of the communication passage (21) is designed to be smaller than an opening area (S2) of the lock-side supply and discharge passage (13). When the piston (6) is caused to move for releasing from a raised position to a lower limit position, the sealing member (7) is lowered from the raised position beyond the communication passage (21), to open communication between a release chamber (12) in the housing (1) and the lock-side supply and discharge passage (13) via the communication passage (21).