公开(公告)号：US5284435A

公开(公告)日：1994-02-08

申请号：US959817

申请日：1992-11-23

Applicant: Pieter W. J. M. Nuij ,  Peter P. W. L. van den Bekerom ,  Evert-Jan Mulder

Inventor： Pieter W. J. M. Nuij ,  Peter P. W. L. van den Bekerom ,  Evert-Jan Mulder

IPC: B29C43/02 ,  B29C43/32 ,  B29C43/36 ,  B29C59/02 ,  B29D17/00 ,  B29K69/00 ,  B29L17/00 ,  G11B7/26

CPC classification number: G11B7/263 ,  B29C59/02 ,  B29D17/005 ,  Y10S425/81

Abstract: An apparatus for manufacturing an object having a relief structure on a surface thereof by pressing a first element provided with a negative of the relief structure against a second element to form the relief structure in the surface of the second element. The apparatus includes the first element and two pressure members having pressure surfaces facing each other and opposing both of the elements, the pressure members being moveable relative to each other in a direction transverse to the pressure surfaces. The apparatus also has a pressure body secured to the pressure surface of at least one of the pressure member, having a contact surface for cooperation with one of the elements and being formed of a material whose quotient of its Poissons' ratio to its modules of elasticity differs less from the corresponding quotient of the material of the element cooperating with said contact surface in operation than from the corresponding quotient of the material of the pressure member to which the pressure body is secured.

Abstract translation: 一种用于通过将设置有所述浮雕结构物的负片的第一元件压在第二元件上来在其表面上制造具有浮雕结构的物体的装置，以在所述第二元件的表面中形成所述浮雕结构。 该装置包括第一元件和两个压力构件，其压力表面彼此相对并且相对于两个元件，压力构件可以在横向于压力表面的方向上相对于彼此移动。 该装置还具有固定在至少一个压力构件的压力表面上的压力体，该压力体具有用于与元件之一配合的接触表面，并且由其泊松比与其弹性模量的商品形成的材料形成 与在操作中与所述接触表面协作的元件的材料的相应商比与压力体被固定到的压力构件的材料的相应商相比更小。

公开(公告)号：US5242630A

公开(公告)日：1993-09-07

申请号：US839016

申请日：1992-02-18

Applicant: Pieter W. J. M. Nuij ,  Peter P. W. L. Van den Bekerom ,  Evert-Jan Mulder

Inventor： Pieter W. J. M. Nuij ,  Peter P. W. L. Van den Bekerom ,  Evert-Jan Mulder

IPC: B29C43/02 ,  B29C43/32 ,  B29C43/36 ,  B29C59/02 ,  B29D17/00 ,  B29K69/00 ,  B29L17/00 ,  G11B7/26

CPC classification number: G11B7/263 ,  B29C59/02 ,  B29D17/005 ,  Y10S425/81

Abstract: A method of manufacturing an object having a surface structure, the method employing pressure members (3, 5) which are movable relative to one another and which have facing pressure surfaces (23, 25). A first element (51) and a second element (53) having a relief on one surface are pressed against one another to provide the second element with a microstructure by cold deformation. During pressing use is made of a pressure body (27, 29) which is interposed between one of the pressure members and one of the elements and which is made of a material having a characteristic parameter equal to the quotient of the Poisson's ratio and the modulus of elasticity of the material, which parameter differs less from the corresponding parameter of the material of the relevant element than from the corresponding parameter of the material of the relevant pressure member. The difference between the parameter of the material of the first element and the parameter of the material of the second element being smaller than or equal to the difference between the parameter of the material of said pressure body and the parameter of the material of the adjacent element.

公开(公告)号：US4823337A

公开(公告)日：1989-04-18

申请号：US99268

申请日：1987-09-21

Applicant: Pieter Van Zanten ,  Evert-Jan Mulder

Inventor： Pieter Van Zanten ,  Evert-Jan Mulder

IPC: G11B17/032 ,  G11B17/028 ,  G11B17/02 ,  G01D15/32 ,  G11B25/04

CPC classification number: G11B17/0284 ,  G11B17/054

Abstract: Clamping device (21) for clamping an optical disc on a turntable comprises a disc-pressure means (23), a support (5) for the disc-pressure means, which support is movable between an operating position and a rest position, and a permanent-magnet system comprising a first axially magnetized annular magnet (31) and a second axially magnetized magnet (29) secured to the support and to the disc-operating means respectively. In the operating position of the support the disc-pressure means is pressed against the disc on the turntable by magnetic force and the disc-pressure means is freely rotatable relative to the support. The permanent magnets are positioned coaxially relative to each other, a radial air gap (33) being formed between the first magnet (31) and the second magnet (29) in the operating position of the support.