A magnetic attachment device comprises a pad, the pad including a base, a backing plate mounting a plurality of magnets, and a top plate. The base is connected to the backing plate and the top plate is connected to the backing plate, the top plate being connected to the backing plate by fasteners, a
A magnetic attachment device comprises a pad, the pad including a base, a backing plate mounting a plurality of magnets, and a top plate. The base is connected to the backing plate and the top plate is connected to the backing plate, the top plate being connected to the backing plate by fasteners, and the pad further comprises flexible sealant situated in a void formed between surfaces of the base and/or the magnets and/or the backing plate.
대표청구항▼
1. A magnetic attachment device comprising: a body;a pair of levers pivotally attached to the body; andactuation means adapted to cause relative movement between the body and the levers, the body and the levers each including a surface for engagement with a substrate, the device having an attachment
1. A magnetic attachment device comprising: a body;a pair of levers pivotally attached to the body; andactuation means adapted to cause relative movement between the body and the levers, the body and the levers each including a surface for engagement with a substrate, the device having an attachment configuration and a release configuration; whereinrelative movement between the body and the levers moves the device between the attachment and release configurations,the actuation means includes a cam associated with each lever,each lever includes a cam engagement surface,the cams are mounted rotatably on the body,the cams are connected to the actuation means, andactuation of said actuation means rotates said cams and thereby generates said relative movement between the body and the levers. 2. A magnetic attachment device according to claim 1, wherein the levers of the pair are mounted on a common shaft that is supported on the body for rotation about its own axis. 3. A magnetic attachment device according to claim 1, wherein the cam engagement surface is situated between the substrate engagement surface of the lever and the pivot attachment of the lever to the body. 4. A magnetic attachment device according to claim 1, wherein the cam engagement surface is situated above the substrate engagement surface. 5. A magnetic attachment device according to claim 1, wherein the substrate engagement surface of each lever is provided with a compressible element. 6. A magnetic attachment device according to claim 1, wherein the actuation means includes a shaft supported on the body for rotation about its own axis, wherein the said cams are mounted on the shaft. 7. A magnetic attachment device according to claim 6, wherein each lever includes a slot, and wherein the shaft passes through the slot, and wherein the ends of the slot constitute limits to the relative movement between the body and the levers. 8. A magnetic attachment device according to claim 6, wherein each lever includes a slot, and wherein the shaft passes through the slot, wherein each cam is mounted on the body by a bush, and wherein the bush extends through the slot and through a hole in the body, wherein the shaft extends through the bushes, which extend through the slot in the lever and the hole in the body. 9. A magnetic attachment device according to claim 1, wherein the actuation means includes a handle. 10. A magnetic attachment device according to claim 1, wherein the actuation means and the levers are configured such that upon actuation of the actuation means the body moves with respect to the levers, the levers remaining stationary. 11. A magnetic attachment device according to claim 1, further including biasing means, wherein the biasing means are disposed so as to exert a force on the body and the levers and to bias the levers into engagement with the cams. 12. A magnetic attachment device according to claim 11, wherein the body includes a slot and an element connected to the levers extends through the slot, and wherein the biasing means engages with the body and with the element. 13. A magnetic attachment device according to claim 1, wherein the substrate engagement surface of the body includes a compressible element. 14. A magnetic attachment device according to claim 1, wherein the body includes two elements each extending laterally past at least the edge of one of the levers proximate the body. 15. A magnetic attachment device according to claim 14, wherein the substrate engagement surface of the body includes a compressible element, wherein the element extending laterally past at least the edge of the lever proximate the body is formed in the compressible element. 16. A magnetic attachment device according to claim 1, wherein the substrate engagement surface of each body is provided with a compressible element. 17. A magnetic attachment device comprising: a body;a pair of levers pivotally attached to the body; andactuation means adapted to cause relative movement between the body and the levers, the body and the levers each including a surface for engagement with a substrate, the device having an attachment configuration and a release configuration; whereinrelative movement between the body and the levers moves the device between the attachment and release configurations, wherein either:(1) the body includes a top plate and wherein the top plate mounts the shaft to which the levers are pivotally attached, the cams and the actuation means; or(2) further including locking means adapted to lock the device in at least one of the attachment and release configurations; or(3) the body includes a pad, the pad including a base, a backing plate mounting a plurality of magnets, and a top plate, wherein the base is connected to the backing plate and the top plate is connected to the backing plate, the top plate being connected to the backing plate, and the pad further comprising flexible sealant situated in a void formed between surfaces of the base and/or the magnets and/or the backing plate. 18. A magnetic attachment device according to claim 17, wherein the body includes a top plate and wherein the top plate mounts the shaft to which the levers are pivotally attached, the cams and the actuation means. 19. A magnetic attachment device according to claim 18, further including biasing means, wherein the biasing means are disposed so as to exert a force on the body and the levers and to bias the levers into engagement with the cams, wherein the top plate mounts the biasing means. 20. A magnetic attachment device according to claim 19, wherein the slot is formed in the top plate. 21. A magnetic attachment device according to claim 17, further comprising locking means adapted to lock the device in at least one of the attachment and release configurations. 22. A magnetic attachment device according to claim 17, wherein the body includes a pad, the pad including a base, a backing plate mounting a plurality of magnets, and a top plate, wherein the base is connected to the backing plate and the top plate is connected to the backing plate, the top plate being connected to the backing plate, and the pad further comprising flexible sealant situated in a void formed between surfaces of the base and/or the magnets and/or the backing plate. 23. A magnetic attachment device according to claim 22, wherein the pair of levers is attached to the top plate.
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이 특허에 인용된 특허 (3)
Hofele Hans (Gppingen DEX) Thudium Karl (Wschenbeuren DEX), Arrangement for transferring sheet metal parts in a press installation.
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