CN2422717Y - 一种录音机的防抹音装置 - Google Patents

一种录音机的防抹音装置 Download PDF

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Publication number
CN2422717Y
CN2422717Y CN00227975U CN00227975U CN2422717Y CN 2422717 Y CN2422717 Y CN 2422717Y CN 00227975 U CN00227975 U CN 00227975U CN 00227975 U CN00227975 U CN 00227975U CN 2422717 Y CN2422717 Y CN 2422717Y
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record button
locking board
button
sound recording
sound
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Expired - Fee Related
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CN00227975U
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李庆云
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Priority to CN00227975U priority Critical patent/CN2422717Y/zh
Priority to AU2000276391A priority patent/AU2000276391A1/en
Priority to PCT/CN2000/000289 priority patent/WO2001082300A1/zh
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/04Preventing, inhibiting, or warning against accidental erasing or double recording
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/10Manually-operated control; Solenoid-operated control
    • G11B15/106Manually-operated control; Solenoid-operated control mechanically operated

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  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Mechanical Control Devices (AREA)

Abstract

一种录音机的防抹音装置,有由放音键引发动作的锁扣板,录音键的一侧有凸角,锁扣板的靠录音键一端开有可卡住录音键凸角的缺口。所述的防抹音装置较之传统的相同功能的装置,省却了一个防抹音板,但保持了传统结构具有的功能。减少了零件即减少了多个零件公差积累带来的不利影响。简化了录音机芯的组装工序。

Description

一种录音机的防抹音装置
本实用新型涉及录音机处于放音状态时,防止录音键被按下而误抹已录声音的装置。
录音机的录音键只要不被按下,就不会抹掉磁带上已录的声音。即录音机处于放音状态时机芯内有防止录音键被按下的装置。现有的录音机防抹音装置如图1-4,当按下放音键,该键的移动牵动一个锁扣板动作,锁扣板的动作将放音键扣住可维持放音状态;放音键被按下的同时还推动一个防抹板向录音键方向移动,防抹板的前端有一个缺口可卡住录音键的凸角,使录音键不可移动,从而实现防抹音功能。虽然这种装置的性能可靠,但按下放音键将引发锁扣板和防抹板两个零件同时动作。由于相互动作的各零件之间有公差积累问题,相互引发动作的零件越多,对各零件的精度要求越高,材料成本越高,录音机芯组装作业的工序也越复杂。
本实用新型之目的是给出一种简化结构、降低成本,方便机芯组装作业的录音机防抹音装置。
本实用新型所述的录音机防抹音装置,有由放音键动作而引发动作的锁扣板,录音键的靠锁扣板一侧有一个凸角,锁扣板的靠录音键一端开有可卡住录音键凸角的缺口。
本实用新型所述的录音机防抹音装置,按下放音键后,锁扣板被引发动作扣住放音键维持放音状态。此时锁扣板的靠录音键一端的缺口处于录音键的凸角的运动轨迹上,录音键若被按压其凸角将被锁扣板的缺口卡住,即保证录音键不能被按下,而防止误抹已录的声音。本实用新型对锁扣板一端形状的改进,使其具有阻止录音键被误按下的功能,省却了传统录音机芯结构中的防抹板,但保持了原有的功能。因省却了一个相互动作的零件,减少了材料消耗,更重要的是减少了多个零件公差积累带来的不利影响,使其他零件的尺寸精度要求得以降低,从而更容易保证其精度要求。同时也简化了录音机芯组装的工序。
图1现有录音机防抹音装置的结构关系图,放音键未按下状态;
图2现有录音机防抹音装置的结构关系图,放音键已按下状态;
图3现有录音机中锁扣板的主视图;
图4现有录音机中防抹板的主视图;
图5本实用新型的结构关系图,放音键未按下状态;
图6本实用新型的结构关系图,放音键已按下状态;
图7本实用新型锁扣板的主视图。
在传统录音机芯中按压放音键2将引发锁扣板3和防抹板4动作。锁扣板3的动作是先向背离录音键1的方向移动很小距离后在弹簧力作用下立即复位,即扣住了被按下的放音键2、防抹板4的动作是向录音键1方向移动,防抹板前端的缺口4a卡住录音键的凸角5,使录音键被锁住而防止误抹音。
本实用新型省却了传统的防抹板4,锁扣板3的前端由传统的斜面改进为开一个缺口3a而形成台阶状,比较图3和图7。当按压放音键2,锁扣板3先向背离录音键1方向移动很小距离后立即复位扣住3被按下的放音键2的同时锁扣板3的靠录音键1一端的缺口3a已处于录音键的凸角5的运动轨迹上,锁扣板的缺口3a可阻止录音键1有效的移动,从而防止录音键被误按压造成误抹音。

Claims (1)

1、一种录音机的防抹音装置,有由放音键(2)动作而引发动作的锁扣板(3),录音键(1)的靠锁扣板(3)一侧有一个凸角(5),其特征在于,锁扣板(3)的靠录音键(1)一端开有可卡住录音键凸角(5)的缺口(3a)。
CN00227975U 2000-04-26 2000-04-26 一种录音机的防抹音装置 Expired - Fee Related CN2422717Y (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN00227975U CN2422717Y (zh) 2000-04-26 2000-04-26 一种录音机的防抹音装置
AU2000276391A AU2000276391A1 (en) 2000-04-26 2000-09-25 Device for preventing erasure of recorded information from tape recorder
PCT/CN2000/000289 WO2001082300A1 (fr) 2000-04-26 2000-09-25 Dispositif permettant d'eviter l'effacement de donnees enregistrees utilise avec un lecteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN00227975U CN2422717Y (zh) 2000-04-26 2000-04-26 一种录音机的防抹音装置

Publications (1)

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CN2422717Y true CN2422717Y (zh) 2001-03-07

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CN00227975U Expired - Fee Related CN2422717Y (zh) 2000-04-26 2000-04-26 一种录音机的防抹音装置

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CN (1) CN2422717Y (zh)
AU (1) AU2000276391A1 (zh)
WO (1) WO2001082300A1 (zh)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696217A (en) * 1969-08-14 1972-10-03 Olympus Optical Co Device using a recording jack for preventing erasure of recorded information from magnetic tape in a tape recorder
BE803637A (fr) * 1973-08-14 1973-12-03 Staar Sa Dispositif permettant d'empecher l'effacement d'une bande magnetique dans les appareils permettant un enregistrement et/ou une reproduction dans les deux sens de defilement de la bande
GB2067337B (en) * 1980-01-08 1983-10-19 Tokyo Shibaura Electric Co Tape recorder

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AU2000276391A1 (en) 2001-11-07
WO2001082300A1 (fr) 2001-11-01

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