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1. 发明申请

US20210183554A1 MAGNETIC CLAMP DEVICE 有权
公开(公告)号：US20210183554A1
公开(公告)日：2021-06-17
申请号：US17257441
申请日：2019-05-31
申请人： KOSMEK LTD.
发明人： RYOTA KOJIMA
IPC分类号： H01F7/02 , B29C45/17 , B29C33/32
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.

2. 发明申请

US20220277876A1 MAGNETIC CLAMP DEVICE 有权
公开(公告)号：US20220277876A1
公开(公告)日：2022-09-01
申请号：US17631483
申请日：2020-07-16
申请人： KOSMEK LTD.
发明人： RYOTA KOJIMA
IPC分类号： H01F7/04 , F16B2/06
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. 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.

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