公开(公告)号：GB2115982A

公开(公告)日：1983-09-14

申请号：GB8303381

申请日：1983-02-08

Applicant: FLEX KEY CORP ,  TOKICO LTD

Inventor： RODRIGUE LEO L ,  KOHARA TAKAO

IPC: A47J36/24 ,  H01H13/702 ,  H05B3/74 ,  H01H5/04 ,  H01H13/70

Abstract: A tactile or snap-action membrane keyboard comprises tactile or snap- action protrusions 18 in a membrane sheet 12, each protrusion being asymmetrical with respect to a line or plane of reference. Such a protrusion is stated to be less sensitive to variation in location of actuating force than prior symmetrical protrusions.

公开(公告)号：DE3306742A1

公开(公告)日：1983-09-01

申请号：DE3306742

申请日：1983-02-25

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO L

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  G05G1/02

公开(公告)号：GB2115982B

公开(公告)日：1986-02-26

申请号：GB8303381

申请日：1983-02-08

Applicant: FLEX KEY CORP ,  TOKICO LTD

Inventor： RODRIGUE LEO L ,  KOHARA TAKAO

IPC: A47J36/24 ,  H01H13/702 ,  H05B3/74 ,  H01H5/04 ,  H01H13/70

公开(公告)号：FR2522192B1

公开(公告)日：1987-03-20

申请号：FR8301942

申请日：1983-02-08

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO L

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  H01H9/18

公开(公告)号：FR2522192A1

公开(公告)日：1983-08-26

申请号：FR8301942

申请日：1983-02-08

Applicant: FLEX KEY CORP

Inventor： RODRIGUE LEO L

IPC: H01H13/48 ,  G06F3/02 ,  H01H13/702 ,  H01H9/18

Abstract: In a key arrangement, especially in a key field, which has a snap actuating function, a more reliable snap action is achieved, on curvatures moulded in a diaphragm and effecting the snap actuating function when depressed, if these curvatures are asymmetrical with reference to an axis or an axial cutting plane.