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1. 发明公开

EP4092274A1 PNEUMATIC CYLINDER DEVICE WITH HOLDING VALVE 审中-公开
公开(公告)号：EP4092274A1
公开(公告)日：2022-11-23
申请号：EP22179351.6
申请日：2020-01-30
申请人： Kosmek Ltd.
发明人： Yonezawa, Keitaro
IPC分类号： F15B15/26 , F15B15/20
摘要： 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).

2. 发明公开

EP4012177A1 MOTOR AND HYDRAULIC PUMP DEVICE COMPRISING THE MOTOR 审中-实审
公开(公告)号：EP4012177A1
公开(公告)日：2022-06-15
申请号：EP20853411.5
申请日：2020-07-31
申请人： Kosmek Ltd.
发明人： YONEZAWA, Keitaro , OKUBO, Yoshiki
IPC分类号： F04B9/133
摘要： A piston (8) is provided in a motor main body (4). A first motor chamber (9) is provided above the piston (8) and a second motor chamber (10) is provided below the piston (8). A pilot valve element (18) is provided so as to protrude from the piston (8). When a supply/discharge valve (13) is moved to its upper limit position or its lower limit position by the movement of the pilot valve element (18) in an up-down direction, a first valve member (25) of the supply/discharge valve (13) switches between supplying and discharging pressure fluid to and from the first motor chamber (9) and a second valve member (26) of the supply/discharge valve (13) switches between supplying and discharging pressure fluid to and from the second motor chamber (10).

3. 发明公开

EP3991912A1 WORKPIECE SUPPORT 有权
公开(公告)号：EP3991912A1
公开(公告)日：2022-05-04
申请号：EP20856447.6
申请日：2020-08-03
申请人： Kosmek Ltd.
发明人： YOSHIMURA, Gaku
IPC分类号： B23Q3/02 , B23Q3/10 , F15B15/08 , F15B15/14 , F15B15/26
摘要： A discharge passage (42) of a work support includes: an annular space (2a) created between an insertion hole (2), provided through a leading end portion of a housing (1), and a support rod (3); and a discharge port (42a) provided at the leading end portion of the housing (1). The work support is designed so that an amount of gas pushed out of an outlet chamber (32) by an output member (24) when the output member (24) moves from its base-end-side limit position to its leading-end-side limit position is larger than a capacity of an accommodation chamber (45) created on a base end side relative to the support rod (3) due to movement of the support rod (3) from its base-end-side limit position to a leading-end-side position.

4. 发明公开

EP3988273A1 MAGNETIC CLAMP DEVICE 审中-公开
公开(公告)号：EP3988273A1
公开(公告)日：2022-04-27
申请号：EP20858877.2
申请日：2020-07-16
申请人： Kosmek Ltd.
发明人： KOJIMA Ryota
IPC分类号： B29C45/26 , B23Q3/154 , H01F7/02 , H01F7/04 , B29C33/32
摘要： 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. Abolt 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.

5. 发明公开

EP3932587A1 ADHESION FORCE CONFIRMATION METHOD AND ADHESION FORCE CONFIRMATION DEVICE 有权
公开(公告)号：EP3932587A1
公开(公告)日：2022-01-05
申请号：EP20814363.6
申请日：2020-04-13
申请人： Kosmek Ltd.
发明人： AKAMATSU Hiroshi
IPC分类号： B22D17/22 , B22D17/32 , B29C45/76 , B29C45/84 , B29C33/32
摘要： The present invention enables conformation that a mold magnetically adsorbed by a magnetic clamping device has been magnetically adsorbed by a sufficient adsorption force so as not to be pulled off from the magnetic clamping device by a mold opening force of a mold handling device. A controller 7 carries out magnetization of a magnetic clamping device 10 such that a magnetic adsorption force weaker than that in normal magnetization is generated in a state where molds M1, M2 are bound together, and carries out a test to determine whether separation of the molds M1, M2 would occur when platens 2, 3 are separated. The controller issues a warning regarding lack of guaranteed adsorption force to an operator when separation is detected, and carries out normal magnetization of the magnetic clamping device 10 when separation is not detected.

6. 发明公开

EP3815841A1 WORKPIECE SUPPORT 有权
公开(公告)号：EP3815841A1
公开(公告)日：2021-05-05
申请号：EP19876254.4
申请日：2019-10-11
申请人： Kosmek Ltd.
发明人： YOSHIMURA, Gaku
IPC分类号： B23Q3/06 , B23Q3/02
摘要： An ascent-detecting air supply port (33), a descent-detecting air supply port (43), and an air discharge port (44) are provided to a housing (2). The ascent-detecting air supply port (33) is communicatively connected to an air outlet (38) by an ascent-detecting air passage (39). The descent-detecting air supply port (43) is communicatively connected to the air discharge port (44) by a descent-detecting air passage (45). The descent-detecting air passage (45) is closed by a valve mechanism (49) including: a valve surface (50) provided on a piston portion (15); and a valve seat (51) provided on an inner surface of the housing (2), when an advance piston (14) is retracted to a lowered position.

7. 发明公开

EP3782788A1 MAGNETIC CLAMP DEVICE 有权
公开(公告)号：EP3782788A1
公开(公告)日：2021-02-24
申请号：EP19833294.2
申请日：2019-05-31
申请人： Kosmek Ltd.
发明人： KOJIMA Ryota
IPC分类号： B29C33/32 , B23Q3/15 , H01F7/02
摘要： Provided is a magnetic clamp device that reduces a magnetic flux leaking from a magnetic circuit passing through a permanent magnet and a magnetic pole member. The magnetic clamp device includes: a permanent magnet 20 surrounding a magnetic pole member 10 and disposed on a surface of a plate PL made of a magnetic body that magnetically clamps a mold in a magnetized state; and a reversible magnet 16 capable of reversing polarity and disposed at the rear of the permanent magnet 20. The magnetic pole member 10 is constituted by a plurality of magnetic pole pieces 101, 102, 103, and 104. Each of the magnetic pole pieces has a first lateral surface R with a shape corresponding to the opposite permanent magnet 20, and a second lateral surface T at which adjacent magnetic pole pieces oppose each other. The magnetic pole member 10 moves as the first lateral surfaces R are suction-adsorbed by the permanent magnet 20 without the second lateral surfaces T interfering with each other. The magnetic pole pieces 101, 102, 103, and 104 are held from the front and rear.

8. 发明公开

EP3778114A1 CYLINDER 审中-公开
公开(公告)号：EP3778114A1
公开(公告)日：2021-02-17
申请号：EP19820387.9
申请日：2019-05-20
申请人： Kosmek Ltd.
发明人： YOSHIMI, Masahiro
IPC分类号： B23Q3/06 , B23Q17/00 , F15B15/14
摘要： 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 5 is accommodated in a cylinder hole 2. A first valve chamber 21, to which compressed air is supplied, is provided between a lower wall 1b of a housing 1 and the output member 5. A second valve chamber 23 is hollowed out of the output member 5 so as to be provided open toward the first valve chamber 21. A valve rod 10c is inserted into the second valve chamber 23 from the lower wall 1b. A valve rod passage 10d that allows the second valve chamber 23 to communicate with outside air is provided in the valve rod 10c, and a seal section 27 is provided in a peripheral gap where the valve rod and the second valve chamber 23 move relatively to one another. The gap is formed so that, as the valve rod 10c and the second valve chamber 23 are in relative movement, there is a region which is sealed by the seal section 27 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.

9. 发明授权

EP3260233B1 ATTACHMENT/DETACHMENT DEVICE FOR CLAMP ARM OF CLAMPING DEVICE 有权
公开(公告)号：EP3260233B1
公开(公告)日：2019-10-16
申请号：EP16803298.5
申请日：2016-05-30
申请人： Kosmek Ltd.
发明人： YOSHIMI, Masahiro , YONEZAWA, Keitaro , OTANI, Kenta
IPC分类号： B23Q3/06

10. 发明公开

EP3184235A4 CLAMP DEVICE 有权
公开(公告)号：EP3184235A4
公开(公告)日：2018-05-02
申请号：EP15864511
申请日：2015-11-25
申请人： KOSMEK LTD
发明人： YOSHIMURA GAKU
IPC分类号： B23Q3/06 , B23Q1/00 , B23Q3/08 , B25B5/06
CPC分类号： B23Q3/06 , B23Q3/082 , B25B5/061
摘要： A clamping apparatus includes: locking members (80) insertable into a hole (11) of a workpiece (10); and a clamp rod (70) configured to make a wedge engagement with the locking members (80) from above. Each locking member (80) includes a base portion (85) configured to be inserted into the hole (11); and a protruding portion (87) located above the base portion (85). A relative movement restriction mechanism (M) configured to restrict downward movement of the clamp rod (70) relative to the locking members (80) within a predetermined travel distance allows descent of outer peripheral surfaces (85a) of the base portions (85) relative to an inner peripheral surface of the hole (11) when the locking members (80) are in a diameter-expanded position.

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