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11. 发明专利

JP2002289063A KEY SWITCH DEVICE 审中-公开
公开(公告)号：JP2002289063A
公开(公告)日：2002-10-04
申请号：JP2002043466
申请日：2002-02-20
申请人： BROTHER IND LTD
发明人： WATANABE MAKOTO , MOCHIZUKI ISAO
IPC分类号： H01H13/14 , H01H13/70 , H01H13/702
摘要： PROBLEM TO BE SOLVED: To provide a key switch, of which the structure can be simplified and thinned, the cost can be reduced, by eliminating the need for a conventional holder plate. SOLUTION: On a support plate 25 made of a metal thin plate, locking parts 26, 27 corresponding to locking parts 2, 3 of respective key top 1 are formed, respectively. On the locking parts 2, 3 formed on the back of a key top 1, locking pins 13, 14 formed on the upper end of a link member 7 and locking pins 23, 24 formed on the upper end of a link 8 are locked, respectively. On the locking parts 26, 27 formed on the support plate 25, locking pins 15, 16 formed on the lower end of the link member 7 and locking pins 21, 22 formed on the lower end of the link member 8 are locked, respectively.

12. 发明专利

JP2002251938A KEY SWITCH DEVICE 审中-公开
公开(公告)号：JP2002251938A
公开(公告)日：2002-09-06
申请号：JP2002049552
申请日：2002-02-26
申请人： BROTHER IND LTD
发明人： TAKAGI TAKEYUKI , SATO YOSHITSUGU , WATANABE MAKOTO , MOCHIZUKI ISAO
IPC分类号： H01H13/14 , H01H13/70 , H01H13/702
摘要： PROBLEM TO BE SOLVED: To provide a key switch device capable of carrying out a sure switching operation while always properly keeping an arrangement relationship among a key top, links and a rubber spring and allowing the thinning of itself by effectively using the thickness of a holder member. SOLUTION: This key switch device is so structured that rotation lock parts 27 for rotatably locking pin parts 12a and 12b formed in the first link 4, and slide lock parts 28 for slidably locking pin parts 14a and 14b formed in the second link 5 are formed on the holder member 7, a through-hole 7a for disposing the rubber spring 6 between the lock part 27 and the lock part 28 is formed in the holder member 7, and pressing force based on the input operation for the key top 2 is made to act on a nearly central part of the upper face of the rubber spring 6.

13. 发明专利

JP2002203448A KEY SWITCH DEVICE 审中-公开
公开(公告)号：JP2002203448A
公开(公告)日：2002-07-19
申请号：JP2001398714
申请日：2001-12-28
申请人： BROTHER IND LTD
发明人： WATANABE MAKOTO , MOCHIZUKI ISAO
IPC分类号： H01H13/14 , H01H13/52
摘要： PROBLEM TO BE SOLVED: To provide a key switch device capable of positioning a flexible circuit board 30 difficult to handle because of high flexibility in an appropriate position of a plate 25 while structure is made simple, a size is made thin, and a cost is made low. SOLUTION: Insertion holes 30A corresponding to a locking piece 35 of a supporting plate 25 slidably locking locking pins 15, 16 of a link member 7 and a locking piece 36 of the supporting plate 25 slidably locking locking pins 21, 22 of a link member 8 are formed in a flexible circuit board 30, and by inserting the locking pieces 35, 36 into the insertion holes 30A respectively, the flexible circuit board 30 is positioned in the appropriate position on the supporting plate 25.

14. 发明专利

JP2002184258A KEY SWITCH DEVICE 审中-公开
公开(公告)号：JP2002184258A
公开(公告)日：2002-06-28
申请号：JP2001320369
申请日：2001-10-18
申请人： BROTHER IND LTD
发明人： MOCHIZUKI ISAO
IPC分类号： H01H13/14 , H01H3/12
摘要： PROBLEM TO BE SOLVED: To provide a low cost key switch capable of increasing the size of a key stroke while coping with reduction in size and thickness of a keyboard, improving the operability in key entry with a simple structure, and assuring the key entry. SOLUTION: Two links 4 and 5 for liftably guiding a key top 2 are disposed crossingly in X shape as viewed from the side, and rotatably connected to each other at the intermediate crossing part. One ends of the free ends of the links 4 and 5 are locked to the lower surface of the key top 2 and a holder member 8 slidably in horizontal direction, and the other ends thereof are locked rotatably to the lower surface of the key top 2 and the holder member 8. A first spring member 6 and a second spring member 7 are formed integrally with one link 4. When the key top is pressed down, the second spring member 7 presses down a switching part 29 provided on a flexible printed circuit board 9 disposed underside the holder member 8 through a hole part 26 formed in the holder member 8.

15. 发明专利

JP2002140953A KEY SWITCH DEVICE 审中-公开
公开(公告)号：JP2002140953A
公开(公告)日：2002-05-17
申请号：JP2001279813
申请日：2001-09-14
申请人： BROTHER IND LTD
发明人： MOCHIZUKI ISAO , TAKAGI TAKEYUKI
IPC分类号： H01H13/14
摘要： PROBLEM TO BE SOLVED: To provide a key switch device easily lockable to a rotational locking part without bending or deforming an upper locking member and a lower locking member, when the upper locking member of a first link member forming a guide supporting member is locked to the rotational member of a key top and also when the lower locking member of a second link member is locked to the rotational locking part of a holder member. SOLUTION: When the first locking pins 13, 14 of a link member 7 are locked to the rotational locking part of a key top 1, and when the first locking pins 21, 22 of a link member 8 are locked to the rotational locking part 27 of a holder member 25, an base end pat 10 located adjacently to the first locking pins 13, 14 to act as a reinforcement member while having bigger rigidity than the first locking pins 13, 14 is formed on the link member 7, and another base end part located adjacently to the first locking pins 21, 22 to act as a reinforcement member while having higher rigidity than the first locking pins 21, 22 is formed on the link member 8.

16. 发明专利

JP2001202849A KEY SWITCH DEVICE, KEYBOARD HAVING THE SAME AND ELECTRONIC DEVICES HAVING THE KEYBOARD 失效
公开(公告)号：JP2001202849A
公开(公告)日：2001-07-27
申请号：JP2000013183
申请日：2000-01-21
申请人： BROTHER IND LTD
发明人： MOCHIZUKI ISAO
IPC分类号： G06F3/02 , H01H3/12 , H01H13/14 , H01H13/20 , H01H13/28
摘要： PROBLEM TO BE SOLVED: To provide a key switch device having good key operation property. SOLUTION: A pressing load generated when key tops is pressed is defined by following formula 1 which is expressed by characters of a coil spring. formula 1 Wherein, L is a distance between a pivoting point (o) of an engagement shaft of a first link member in a first engagement part of the key top and a sliding start point (s) of an engagement shaft of a first link member in a third engagement part, L1 is a distance between the pivoting point (o) and a point (m) in which the biasing force of the coil spring acts, and θ4 is an angle formed by a segment line for connecting the pivoting point (o) and the sliding start point (s) the sliding direction of the first link member in the third engagement part however θ4 is calculated by θ4=sin-1 (rO/L). In the pressing load curved line P, key click function can be revealed on the basis of load difference between the maximum point P1 and the minimum point P2.

17. 发明专利

JP2001184975A ILLUMINATING KEY SWITCH DEVICE, AND ELECTRONIC APPARATUS HAVING THE SAME 失效
公开(公告)号：JP2001184975A
公开(公告)日：2001-07-06
申请号：JP37428499
申请日：1999-12-28
申请人： BROTHER IND LTD
发明人： MOCHIZUKI ISAO , KAKO MITSUMASA
IPC分类号： H01H13/02 , H01H9/16 , H01H13/70 , H01H13/712
摘要： PROBLEM TO BE SOLVED: To provide an illuminating key switch device and an electronic apparatus having the same, in which a key top can be clearly specified even when being used at a dark place, and a key can be easily operated. SOLUTION: The illuminating key switch device comprises a key top 9 having a light transmittance; a film sheet MS disposed down of the key top and having a switching electrode formed thereon; a light emitting sheet 71 disposed at the lower part of the key top 9 and emitting light by application of voltage; a guide member 10 serving to guide upward and downward movements of the key top 9; a rubber spring 11 performing a switching operation with the switching electrode while intervening upward and downward input operations of the key top 9 therebetween; and an engaging member 6A fixed on the film sheet MS and movably engaging a first axis and second axis of the guide member 10.

18. 发明专利

JP2001093377A KEY SWITCH DEVICE 失效
公开(公告)号：JP2001093377A
公开(公告)日：2001-04-06
申请号：JP2000253446
申请日：2000-08-24
申请人： BROTHER IND LTD
发明人： WATANABE MAKOTO , SATO YOSHITSUGU , TAKAGI TAKEYUKI , MOCHIZUKI ISAO , OKADA HIROAKI
IPC分类号： G06F3/02 , H01H11/00 , H01H13/14
摘要： PROBLEM TO BE SOLVED: To provide a key switch device for facilitating the combination of a guide supporting member 6b and a holder plate 25. SOLUTION: A locking part 26 on a holder plate 25 comprises an upward extended restricting wall 26a having an opening portion outward, wherein a locking pin 15 at the lower end of a first link member 7 is inserted from the opening portion. A locking part 27 comprises a second guide portion 29 as a wall portion erected on a holder plate 25 and a first guide portion 28 as an elastic member, elastically movable, opposed to the second guide portion 29, wherein a locking rod 21 at the lower end of a second link member 8 is pushed thereagainst.

19. 发明专利

JP2001076573A KEY SWITCH DEVICE 失效
公开(公告)号：JP2001076573A
公开(公告)日：2001-03-23
申请号：JP2000248210
申请日：2000-08-18
申请人： BROTHER IND LTD
发明人： MOCHIZUKI ISAO
IPC分类号： H01H13/14
摘要： PROBLEM TO BE SOLVED: To provide a key switch device capable of securing a large key stroke in spite of the thinning of a keyboard, capable of prolonging the endurance life of a rubber spring, and capable of being easily assembled. SOLUTION: The vertical movement of a key top is guided and supported by meshing and synchronously turning the gears 12a, 12b, 22a, 22b of both gear link members, thereby a structure for vertically sliding and guiding a key stem with a holder plate is made unnecessary, and a keyboard can be made thin with the size of a key stroke maintained. The depressing force applied to the key top by the lowering action of the key top is directly applied to a rubber spring 32 without passing through both gear link members, and the rubber spring 32 is deformed for a switching action.

20. 发明专利

JP2001057129A KEY SWITCH DEVICE 失效
公开(公告)号：JP2001057129A
公开(公告)日：2001-02-27
申请号：JP2000225008
申请日：2000-07-26
申请人： BROTHER IND LTD
发明人： KAKO MITSUMASA , MOCHIZUKI ISAO , TAKAGI TAKEYUKI
IPC分类号： H01H13/14 , H01H11/00 , H01H13/52
摘要： PROBLEM TO BE SOLVED: To provide a key switch device having satisfactory key operability for secure key input by smoothing the moving operation of lower ends of two link members for guiding a key top in the vertical directions. SOLUTION: This key switch device is formed by punching a board 1 made of a plastically deformable metal raw material, cutting unnecessary parts 1b, pressing residual parts 1a, 1c for deformation, projecting the fitting part 1c as a slide lock part and the fitting part 1a as a turn lock part, locking a lock pin 7a of one link member 7 of a guide support member 6 for guiding and supporting the key top 5 in the vertical directions, with the fitting part 1c integrally formed with the board 1 freely slidably, and while locking a lock shaft 8a of the other link member 8 with the fitting part 1a projected from the board 1 freely turnably.

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