US3875737A - Alarm clock timer - Google Patents

Alarm clock timer Download PDF

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Publication number
US3875737A
US3875737A US391781A US39178173A US3875737A US 3875737 A US3875737 A US 3875737A US 391781 A US391781 A US 391781A US 39178173 A US39178173 A US 39178173A US 3875737 A US3875737 A US 3875737A
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United States
Prior art keywords
alarm
vibrator
lever
rod
shutoff
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US391781A
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English (en)
Inventor
Robert L Boyles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US391781A priority Critical patent/US3875737A/en
Priority to GB2453376A priority patent/GB1455860A/en
Priority to GB5294773A priority patent/GB1455857A/en
Priority to DE2400742A priority patent/DE2400742A1/de
Priority to CH37774D priority patent/CH37774A4/xx
Priority to CH37774A priority patent/CH585430B5/xx
Priority to FR7401606A priority patent/FR2242720B1/fr
Priority to JP49073785A priority patent/JPS5046366A/ja
Application granted granted Critical
Publication of US3875737A publication Critical patent/US3875737A/en
Priority to HK496/77A priority patent/HK49677A/xx
Priority to HK402/79A priority patent/HK40279A/xx
Assigned to BLACK & DECKER, INC., A CORP. OF DE reassignment BLACK & DECKER, INC., A CORP. OF DE ASSIGNS AS OF APRIL 27, 1984 THE ENTIRE INTEREST Assignors: GENERAL ELECTRIC COMPANY A NY CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/0075—Indicating the time optically by electric means by drums or drum-like devices
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/18—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by mechanically unlocking an electromechanical vibrator, e.g. actuated by the leakage flux of the electric driving means

Definitions

  • An alarm vibrator control mechanism for a clock 1 1 Field Of Searchm 31115. timer wherein an elongated longitudinally movable 58/ rod extends from an electric motor and a vibrator on one side of an alarm clock to an alarm cam mechal l References Clled nism on the other side of the clock.
  • a unique shutoff UNITED STATES PATENTS lever mechanism is positioned between one end of the 311656 3/1885 CU 58/13 elongated rod and the vibrator for controlling opera- 4 75 m- 9 Made] 5 3 tion of the vibrator at one side of the clock.
  • the alarm 2.459.107 1/1949 Johnson 1 58/19 R Cam mechanism at the other side of the clock includes 2.583.794 1/1952 Parks 1. 58/17 X a unique temporary shutoff interval lever mechanism 2.64 59 7/1953 B er 5331.15 for holding the rod in the alarm off position for a short 2.701.439 2/1955 Junghans' et a1. 511/22 time nan/3L 2.789.411] 4/1957 Bridcvaux 58/21.] 2.946.182 7/1961) Boylus e1 111. 511121.155 13 Claims, 12 Drawing Figures PATENTEU AFR 81975 snmao q ALARM CLOCK TIMER BACKGROUND OF THE INVENTION l. Field of the Invention This invention relates to a digital clock timer. and more particularly to a unique alarm control mechanism for a digital clock.
  • the numeral drums are supported with respect to each other so that they may be driven by a motor 8 which is located at the right of the numerals. With this construction. coaxial shafts extend through the numeral drums for not only driving the drums and their geneva gears and geneva drivers. but also a 12 hour alarm mechanism 160. which is located at the left of the numerals.
  • the l2 hour alarm cam mechanism inlcudes two coaxially mounted gears I62 and 168 which are provided with interacting cams for causing relative coaxial movement of the gears at a preset alarm time.
  • the cam gear 162 may be formed with two leftwardly extending projections I63 and I65 for cooperating with slots 164 and I66 which may be formed in a manually adjustable alarm set cam 168.
  • This invention is concerned with a unique relatively simple alarm vibrator control mechanism, and a temporary repeat alarm shutoff control mechanism which may be inexpensively manufactured and readily incorporated in a digital clock ofthe type disclosed in my copending application: however. it is to be understood that my unique control mechanisms may also be utilized in other clock timer mechanisms.
  • an alarm clock includes a conventional clock timing mechanism and a cam member which is rotated as a function of time by the timing mechanism and is movable at a preset alarm time to sound an alarm.
  • the clock also includes a stationary supporting structure including a supporting plate and an audible alarm vibrator which is supported in a particular relationship with respect to the plate.
  • a uniquely shaped and positioned vibrator shutoff member is provided for cooperating with the audible alarm vibrator and an elongated longitudinally movable rod which extends between the cam member and the vibrator shutoff member.
  • the vibrator shutoff member includes two pivot arms for pivotally mounting the shutoff member on the supporting plate and an elongated longitudinal groove which is located between the pivot arms for uniquely cooperating with an end portion of the longitudinally movable rod.
  • the alarm vibrator may be compactly located between the supporting plate and the field laminations ofa synchronous motor for the clock. and moreover.
  • the vibrator shutoff member may be readily formed of low cost plastic material and may be readily connected to a clock structure by simply placing the pivot arms of the shutoff member on an edge of the supporting plate and locating the longitudinally movable rod within the longitudinal groove that is formed in the vibrator shutoff member.
  • the vibrator shutoff member is conveniently sandwiched between an end of the longitudinally movable rod and an edge portion of the supporting plate without the use of any separate connecting mechanism.
  • the supporting plate may include an outwardly extending portion positioned between the arms of the vibrator shutoff member for providing additional guide surfaces for the vibrator shutoff member.
  • the vibrator shutoff member is uniquely held and positioned on the alarm clock so that it may be readily and reliably actuated at an alarm time to release the audible alarm vibrator.
  • my unique temporary repeat alarm shutoff control mechanism may be readily incorporated with the elongated longitudinally movable rod which extends between the cam member and the vibrator shutoff member.
  • An interval lever is mounted adjacent to the longitudinally movable rod for cooperating with a shoulder that is formed on the rod to hold the rod and the vibrator shutoff lever in the alarm OFF position.
  • a cam on a tens of minutes geneva driver wheel may be utilized for actuating the temporary alarm interval level.
  • a mechanism may be provided for automatically shutting off the alarm. This is accomplished by the addition of a single lever between the longitudinally movable rod and a reset lug which is provided on a cam for driving the units display indicator of the digital clock disclosed in my co-pending application (6D-4474). Ser. No. 339.2l3. filed Mar. 8. I973.
  • FIG. I is a front perspective view of a digital alarm clock constructed in accordance with my invention.
  • FIG. 2 is a front top perspective view generally similar to FIG. I with the outer casing removed for purposes of illustration;
  • FIG. 3 is a bottom front perspective view generally similar to FIG. 2 showing my unique vibrator shutoff member and the longitudinally movable control rod that extends from one side of the clock to the other side of the clock;
  • FIG. 4 is a fragmentary exploded bottom perspective view of the alarm clock illustrated in FIG. 3;
  • FIG. 5 is a cross-sectional view of the clock taken substantially on the plane of 55 of FIG. 2;
  • FIG. 6 is a fragmentary left and elevational view of a minutes drum driving mechanism of the clock shown in FIG. I;
  • FIG. 7 is a fragmentary exploded perspective view showing the details of construction of an alarm time cam and an alarm set cam of the clock shown in FIG. I;
  • FIG. 8 is a fragmentary bottom plane view of the alarm clock shown in FIG. 3 with the parts in the alarm sounding position;
  • FIG. 9 is a fragmentary bottom plan view similar to FIG. 5 with the parts held in the alarm set position by the I2 hour alarm cam mechanisms;
  • FIG. I is a fragmentary bottom plan view similar to FIG. with the parts held in the temporary alarm shut off position by my unique interval lever mechanism;
  • FIG. II is a fragmentary cross-sectional view of the clock taken substantially on the plane of II-ll of FIG. 2 showing the interval lever being released from the longitudinal rod by the tens of minutes gcneva driver;
  • FIG. 12 is a fragmentary exploded perspective view showing the details of construction of the alarm selector mechanism of the digital alarm clock shown in FIG. I.
  • FIGS. 1. 2 and 3. there is shown a digital clock which includes my unique alarm vibrator control mechanism.
  • the clock includes three numeral display indicators 2, 4. and 6. which indicate minutes, tens of minutes and hours respectively.
  • portions of a geneva cam mechanism for driving the tens of minutes and hours display indicators are shown generally by reference numeral 8 at the left side of the digital clock.
  • portions of a mechanisms for indexing the units display indicator 2 are shown at the right side of the clock and are indicated generally by referenced numeral I0.
  • the digital clock may be driven by a conventional self-starting synchronous motor [2 having a magnetic core 14 and energizing coil 16. As shown in FIG. 2, the motor may be readily attached to an end plate I7 of the clock by means of screws 18 or other suitable securing means.
  • the display mechanism includes a minutes spool drum 22 which is fixed to a centrally positioned shaft 24.
  • a tens of minutes drum 26 which is fixed to a coaxial shaft 28, and an hours spool drum 30 which is coaxially mounted on shaft 28.
  • the minutes spool shaft 24 extends a considerable distance to the left of the spool and is supported for rotation within the concentric hollow shaft 28 of the tens of minutes drum.
  • the right end portion 32 of the shaft 24 is rotatably supported within a bearing 34 which is integrally formed with a supporting plate 35.
  • the minutes drum 2 may be indexed from one numeral position to a next succeeding numeral position by a ratchet wheel mechanism 36 as shown more par ticularly in FIG. 6.
  • the ratchet wheel 36 may be integrally formed with the minutes drum 22 for incrementally moving the drum.
  • a drive finger 38 is eccentrically mounted for rotation with respect to the ratchet wheel 36 to engage and move one tooth of the ratchet wheel for each revolution of the drive finger 38.
  • the drive finger 38 may be integrally formed on a reduction gear unit 40 which is positioned between an output shaft 42 of the electric motor I2 and the ratchet wheel 36. With this construction, the output pinion 42 of the motor drives a gear 44 of the integrally formed reduction gear unit 40 to move the drive finger 38 at one revolution per minute.
  • the minutes. tens of minutes and hours drums are supported for rotation between the previously mentioned supporting plate 35 and a supporting plate 50 which is arranged generally parallel thereto.
  • Both of the supporting plates 35 and 50 are preferably formed of a suitable plastic material to include a plurality of outwardly extending spacer posts 52. S4, 56, 58. 60, 62 for supporting a motor mounting plate I7 at the right side of the clock and a mounting plate 64 at the left side of the clock.
  • a plurality of spacer posts 66, 68. and 72 are positioned between the supporting plates 35 and 50 for securely connecting the plates to each other and for providing a convenient means for mounting other components to the clock mechanism.
  • the gcneva mechanism 8 for driving the hours and tens of minutes drums 30 and 26 is positioned between the supporting plates 50 and 64. As shown. the mechanism includes a pair of gcneva driver cams 74 and 76 which are arranged coaxially with each other and are supporting on a common shaft 78 for driving the hours and tens of minutes geneva gears 80 and 82. respectively.
  • a gear 84 is fixed to the minutes shaft 24 for driving the geneva mechanism 8 to advance the hours drum 30 one increment every hour and to advance the tens of minutes drum 26 one increment every IO minutes.
  • Gear 84 is arranged in mesh with a gear 90 of the tens of minutes driver cam 76 and with one driving finger 92 on the geneva driver cam 76. the gearing ratio between the gears 84 and 90 will enable the timing motor [2 to rotate the tens of minutes geneva driver cam 76 once every minutes.
  • the geneva drive finger 92 will be moved into one of the cusps of the geneva wheel 82 to rotate the tens of minutes geneva wheel one increment every l0 minutes.
  • the geneva mechanism 8 is utilized for driving my unique alarm mechanism.
  • the hours geneva driver cam 74 is driven at six revolutions every l2 hours. and thus. it is utilized for driving a 12 hours cam gear 94 ofa 12 hour alarm mechanism.
  • the hours geneva driver cam 74 is fixed to an elongated shaft 96 which extends through the tens of minutes ge neva driver cam 76 and a conventional gear 98 is integrally formed on the left end portion ofthe shaft 96.
  • the gear 98 is arranged in mesh with the 12 hour cam gear 94 to drive the cam gear 94 at one revolution every 12 hours.
  • Conventional l2 hour alarm cam mechanisms include two coaxially mounted gears which are provided with interacting cams for causing relative axial movement of the gears at a preset alarm time for actuating a switch or other alarm mechanism.
  • the cam gear 94 is formed with two leftwardly extending projections I00 and 102 for cooperating with slots I04 and I06 which are formed in a manually adjustable alarm set cam 108.
  • a mechanism for translating movement from an alarm cam gear 64 at one side of a digital clock to an alarm vibrator II4 which is located on the other side of the clock.
  • the mechanism includes an elongated axially movable rod 76. a lever 78, positioned between the rod and the axially movable alarm time cam 64 and a bell crank lever 18.
  • a generally similar mechanism is utilized in the instant invention.
  • a unique shutoff lever mechanism generally indicated by reference numeral [10 which is arranged between a longitudinally movable rod II2 and an alarm vibrator I I4.
  • a resilient magnetic vibrator H4 is positioned between the vibrator shutoff lever mechanism and field laminations N8 of the electric motor I2.
  • the vibrator is operated by leakage flux from the motor and is arranged to have its free end portion 116 vibrate against the stator lamination 118 and produce an audible alarm at all times when the motor is energized unless the vibrator is prevented from vibrating by my unique vibrator shutoff lever mechanism As shown in FIGS.
  • the vibrator 114 may be formed of a single piece of sheet metal and connected to the upper portion of the motor supporting plate 17 by means of rivets I20 and 122.
  • the vibrator is generally L-shaped and includes a transverse arm I24 for receiving the rivets I20 and I22 and a downwardly extending arm 126 which is uniquely positioned between the motor coil I6 and the motor gear reduction unit I30.
  • the downwardly extending arm I26 of the vibrator is formed to include a transversely extending projection I32 for cooperation with my unique shutoff lever mechanism I I0.
  • the longitudinally movable rod II2 for translating movement from the alarm time cam gear 94 and a lever I36 at one side of the clock to my vibrator shutoff lever mechanism 110 at the other side of the clock is uniquely mounted for slidable movement within apertures I38 and I40 that are provided within downwardly extending projections I42 and I44 which are integrally formed with the supporting plates 50 and 35. respectively.
  • a collar 146 is fixed to the longitudinally movable rod II2 at the right side of the clock and a spring I48 is positioned between the collar I46 and the outwardly extending portion 144 of the mounting plate 35 for urging the rod 112 to the left as shown in FIG. 4 into engagement with a lower arm portion I50 of lever I36.
  • the lever I36 is generally T-shaped and includes a generally transverse upper arm portion I52 which is provided with pivot apertures I54 and I56 for pivotally mounting the lever on rightwardly extending projections I58 and I60, respectively. which may be integrally formed with a left supporting plate 64.
  • a rightwardly extending collar I6I is integrally formed with the alarm time gear 94 for cooperating with a left surface of the lever I36 in the vicinity of its notched out portion 164.
  • spring I48 will urge collar I46 and rod II2 to the left against the downwardly extending arm I50 oflever I36 to urge left surface of the lever I36 into engagement with the collar I6I of the alarm time gear 94. Accordingly.
  • the vibrator shutoff lever 110 is uniquely designed so that it may be formed ofa low cost plastic ma terial and readily connected to the clock mechanism previously described. It includes two integrally formed pivot arms I70 and 172 having notched out portions [74 for receiving an edge portion of the supporting plate 35. As shown in FIG, 3, the pivot arms are positioned to straddle the outwardly extending portion 144 of the plate 35 with the notches I74 and 176 being positioned over edge portions of the mounting plate 35 on opposite sides of the outwardly extending portion 144.
  • the lever 110 also includes an elongated longitudinal cam groove [80 positioned between pivot arm 170 and 172 and extending rightwardly therefrom for receiving the right end of the longitudinally movable rod 112.
  • the cam groove I80 includes a generally downwardly extending cam surface 18] for cooperating with the end portion of rod I12 so that the lever 110 may be readily pushed upwardly when the rod 112 is moved to the rightv
  • the shutoff lever H also includes an upwardly extending finger portion 182 which is integrally formed at its right end for engagement with tab 132 of the vibrator [14 to hold the vibrator from sounding against the field laminations ll8 when the rod H2 is pushed to the right.
  • the vibrator shutoff lever may be readily and quickly mounted on the supporting plate 35 by simply locating the pivot arm 170 and 172 on the plate and rotating the lever downwardly about its pivot arms until the groove 180 is positioned over the right end portion of rod 112.
  • the alarm vibrator H4 may be located between the motor supporting plate 17 and the field laminations 118 of the motor. and moreover.
  • the vibrar tor shutoff member 110 may be readily and conveniently sandwiched between the end of the longitudinally movable rod H2 and the edge portion of the supporting plate 35 without the use of any separate connecting mechanisms.
  • the ourwardly extending portion 144 of the supporting plate 35. groove I80 and rod H2 provide guide surfaces for the vibrator shutoff member H0.
  • the vibrator shutoff member is uniquely held and positioned on the alarm clock so that it may readily and reliably actuate the audible alarm vibrator H4 at an alarm time.
  • a repeat alarm mechanism may be readily added to the alarm clock timer with the addition of relatively few parts.
  • the vibrator may be shut off and then a timing mechanism may be automatically operated to resound the alarm a short time after the original sounding, just to make sure that the user has not fallen asleep.
  • the principal component of my unique repeat alarm mechanism is an integrally formed interval lever 200 which is positioned between a collar 202 that is fixed to the longitudinally movable rod H2 and a driving finger 92 ofthe tens of minutes geneva driver cam 76.
  • the repeat alarm interval lever 200 is formed to include a collar portion 204 having a centrally located circular aperture 206 for mounting the lever on the lower rear spacer post 72.
  • the lever also includes a forwardly extending arm 208 for cooperating with the collar 202 on the longitudinal rod 112 and an upwardly and leftwardly extending arm 210 for slidable engagement with the tens of minutes geneva driver cam 76.
  • the repeat alarm lever 200 may also include a rightwardly extending arm 212 for receiving one end of a spring 214 for biasing the lever in a counterclockwise direction about the spacer post 72 into engagement with the longitudinally movable rod 112 and its collar 202. As shown more particularly in H65. 3 and ll, the other end of the spring 214 is anchored to a tab 2l6 which may be integrally formed with the plate 50.
  • a relatively simple mechanism is provided for moving the longitudinal rod 112 to the right to permit arm 208 to engage the left surface of the collar 202.
  • the lever 136 is simply formed with a leftwardly extending tab 220 for engagement with a downwardly extending portion of a repeat alarm pushbutton 222.
  • tab 220 upon depression of the manually operable pushbutton 222, tab 220 will be pivoted downwardly about its pivots 154 and I56 to move the lower portion of lever 136 and rod 1 12 to the right to permit the interval lever 208 to hold the longitudinal rod I12 in the temporary alarm shut-off position.
  • the lug 92 on the tens of minutes geneva driver 76 will have moved through the position illustrated in H0. ll, and as illustrated in PK). 11, it will have rotated the interval lever 200 clockwise far enough to release the push rod 112 and its collar 202 to thereby permit the rod 112 to move far enough to the left under the force of spring [48 to resound the alarm.
  • the geneva driver cam 76 rotates once every 10 minutes, the repeat alarm cycle can be repeated every 10 minutes until the projections and 102 of the alarm time cam 94 are driven out of the slots 104 and 106 of the alarm set cam 108.
  • an automatic alarm shutoff mechanism may be added to the alarm clock timer in order to automatically shut off the alarm 11 short time interval after it has been sounded.
  • the automatic shutoff and repeat alarm mechanism accomplishes the same function as the tab 220 which is formed on the lever I36. That is, it moves the longitudinal rod I I2 to the right from position illustrated in FIG. 8. to the position illustrated in FIG. to permit the interval lever 208 to hold the longitudinal rod 112 in the alarm shutoff position for a short time interval.
  • this unique mechanism can be readily actuated by the same reduction gear unit 40 which is utilized for actuating the minutes display indicator 2.
  • the principal component of the automatic repeat alarm mechanism is a single lever 300 which may be readily formed from a piece of sheet metal.
  • the lever extends between the spacer post 72 and the longitudinally movable rod II2, and it also includes a rightwardly extending arm portion 302 which is arranged for engagement with a rightwardly extending lug 304 which may be integrally formed on the reduction gear unit 40.
  • the lever includes a lower saddle-shaped portion for pivotal engagement within a groove 306 which is formed in the spacer post 72.
  • the upper portion of the lever is provided with a curved slot 308 for receiving rod 112 and the left surface of collar I46, and the rightwardly extending arm 302 is passed through a slot 3I0 in supporting plate 35.
  • the automatic repeat alarm lever 300 is designed so that it may be readily held on to the clock structure without the use of separate connecting hardware. and moreover. it is uniquely positioned so that an automatic repeat alarm feature can he provided by the addition of the single automatic repeat alarm lever 300.
  • the outwardly extending lug 304 of the reduction gear unit 40 which is preferably formed of plastic. may be readily formed on the reduction gear unit at the same time that the teeth and other portions of the reduction gear unit are being formed.
  • the reset lug 304 on the reduction gear unit 40 will move into contact with arm 302 of the repeat alarm lever 300 to pivot the lever in a clockwise direction about its pivot groove 306 to move the longitudinally movable rod II2 against the force of spring I48 to move the rod II2 far enough to the right to permit the interval lever arm 208 to engage the collar 202 to hold the longitudinally movable rod 112 in the temporary alarm shutoff position.
  • the positioning of the reset lug 304 with respect to the drive finger 38 on the reduction gear unit will determine the length of time that the vibrator H4 is allowed to sound before the automatic shut off occurs.
  • ALARM SET MECHANISM A relatively simple alarm control mechanism may be provided for setting the desired operation of the alarm.
  • a tab 404 is provided on the lower front portion of lever I36 for operation by a manually movable cam 402.
  • the cam 402 may be integrally formed of plastic along with a lever 400 that may extend through an enlarged aperture 408 in the front face of the clock casing.
  • the lever 400 and its integrally formed cam 402 may be readily pivoted to the clock by means of a pivot shaft 4I0 that may be supported on plate 50. It can be appreciated that when the lever 400 is rotated upwardly to the alarm OFF position.
  • the operator may permanently shut off the alarm by actuating the lever 400 to the alarm off position.
  • the selector lever 400 is moved upwardly from the position illustrated in FIG. 1 to thereby cause rearwardly extending cam 402 to engage the tab 404 of lever 136 to move the lever 136 and rod 112 to the right to thereby slide the end of rod 112 within the groove 180 of the vibrator shutoff lever to move the vibrator shutoff lever M to the alarm off position illustrated in FIG. [2.
  • the operator may manually depress pushbutton 222 to thereby press tab downwardly to pivot lever 136 to the right to enable the interval lever 208 to move behind collar 202 to hold the alarm in the temporary alarm shutoff position illustrated in FIG. 10.
  • the lug 92 on the geneva driver cam 76 will move to the position illustrated in H6. ll to pivot the repeat alarm interval lever in a clockwise direction to release the interval lever arm 208 from the collar 202 to resound the alarm.
  • my unique alarm control mechanism is achieved with the use of relatively few parts which may be readily incorporated with a digital clock ofthe type described in my co-pending application (6D-4474) Ser. No. 339.213. assigned to the same assignee as the present invention.
  • the principal component of the alarm vibrator control mechanism is a unique shutoff lever 1 l0 which may be formed of a low cost plastic material and readily attached to the supporting plate 35 in order to reliably control the alarm vibrator ll4.
  • a readily formed unique repeat alarm lever 200 is simply positioned over a spacer post 72 and located between the longitudinally movable rod 112 and a lug 92 on an hours geneva driver mechanism 76.
  • the automatic repeat alarm function is also achieved with the use of a single lever 300 which is positioned on the same spacer post 72 and arranged between the longitudinally movable rod 112 and a reset lug 304 which is formed on the reduction gear unit 40.
  • a single lever 300 which is positioned on the same spacer post 72 and arranged between the longitudinally movable rod 112 and a reset lug 304 which is formed on the reduction gear unit 40.
  • An alarm clock comprising:
  • a stationary supporting structure including a supporting plate
  • a vibrator shutoff lever having an alarm on position for releasing said vibrator and an alarm off position for holding said vibrator.
  • said vibrator shutoff lever including two pivot arms for pivotally mounting said shutoff lever on said supporting plate and an elongated groove located between said pivot arms;
  • an elongated axially movable rod having two ends mounted on said supporting structure. one end of said rod being arranged for longitudinal slidable movement within the groove formed in said vibrator shutoff lever;
  • said pivot arms having contact surfaces located on one side of said vibrator shutoff lever. and said elongated groove being located on the other side of said vibrator shutoff lever. so that the vibrator shutoff lever is sandwiched and held on the supporting structure between the elongated axially movable rod and the supporting plate;
  • said supporting structure includes two supporting plates which are arranged generally parallel to each other and are held spaced apart from each other by a plurality of spacer posts and both of said supporting plates include integrally formed outwardly extending portions having apertures formed therein for receiving end portions of said elongated axially movable rod in order to accurately guide said rod within the longitudinal groove formed in said vibrator shutoff member.
  • An alarm clock as defined in claim l wherein said vibrator is arranged generally perpendicular to said vibrator shutoff member.
  • said vibrator shutoff member includes an outwardly extending portion for engaging and holding said vibrator in its off position. and a spring is positioned between said longitudinal rod and said supporting plate for resiliently urging said rod and said vibrator shutoff member to the alarm sounding posi tion.
  • An alarm clock comprising:
  • a vibrator shutoff lever having an alarm on position for releasing said vibrator and an alarm off position for holding said vibrator
  • an elongated vibrator shutoff rod slidable on said vibrator shutoff lever for holding said vibrator shutoff lever in an alarm on position or an alarm off position;
  • a rotatably mounted alarm time cam member mounted to be axially movable at a preset alarm time
  • a control levcr pivotally mounted on said clock positioned between said rod and said alarm time cam for moving said rod against the force of said spring and for permitting said spring to slide said elongated rod axially to thereby release the alarm vibrator to sound the alarm at a pre-set time when said alarm time cam has been moved axially;
  • an automatic alarm shutoff lever positioned to transmit a force to said collar on the elongated vibrator shutoff rod from a reset lug which is rotated as a function of time by said alarm clock for moving said automatic shutoff lever, said collar, and the elongated vibrator shutoff rod a short time after the alarm has sounded in order to automatically shut off the alarm.
  • An alarm clock as defined in claim wherein said automatic alarm shutoff lever is pivotally mounted on a spacer post of the alarm clock and is positioned within a slot that is formed in a supporting plate of the alarm clock in order to support the automatic alarm shutoff lever without the use of additional supporting components.
  • An alarm clock comprising:
  • a supporting structure including a support plate
  • a vibrator shutoff lever having an alarm on position for releasing said vibrator and an alarm off position for holding said vibrator
  • an elongated vibrator shutoff rod slidable on said vibrator shutoff lever for holding said vibrator shutoff lever in an alarm on position or an alarm off position;
  • a rotatably mounted alarm time cam member mounted to be axially movable at a preset alarm time
  • manually operable means movable into engagement with said control lever for moving said control lever and said rod to the alarm off position;
  • timing means for moving said interval lever against the force of its resilient means after a short time interval to release it from the abutment collar formed on the elongated rod to thereby release the vibrator arm after a short time interval.
  • an alarm clock as defined in claim 7 wherein the clock includes two supporting plates arranged generally parallel to each other and a plurality of spacer posts located between the plates for securely connecting the supporting plates to each other and wherein the interval lever includes a bearing aperture for pivotally mounting the interval lever on one of the spacer posts.
  • An alarm clock comprising:
  • a stationary supporting structure including two supporting plates and a plurality of spacer posts extending between the supporting plates;
  • an elongated rod extending between said supporting plates and axially slidable thereon. said rod being axially slidable in one direction to release the alarm at a preselected time and axially movable in an opposite direction to shut off the alarm;
  • an actuating lever pivoted to said supporting structure in engagement with said rod for moving said rod in said opposite direction to shut off the alarm
  • first spring means positioned between one of said supporting plates and said axially movable rod for moving said rod in said one direction to release the alarm;
  • an interval lever pivotally mounted on one of said spacer posts. said lever having a latch arm extending toward said elongated rod;
  • second spring means extending between said lever and said supporting structure for resiliently urging said lever into engagement with said axially movable rod
  • said interval lever including an actuating arm positioned for engagement with said timing mechanism for moving said interval lever after a predetermined short time interval against the force of said second spring means to release the latch arm of the interval lever from the abutment collar on said elongated rod to sound the alarm after the lapse of a short time interval.
  • said tens of minutes geneva driver wheel indi member i h alarm ff position, id i Cludlng driver Projection for movement lmo the 5 terval lever including an arm portion positioned in cusps f E wheel for driving lens the path of the driving lug on said tens of minutes minutes geneva Wheel? f F geneva driver cam whereby said geneva driver cam d.
  • the actuating arm of said interval lever being posi- Said interva lever to release the rod to tioned within the path of said driving projection on the tens of minutes geneva driver for actuating said y interval lever once every ten minutes to thereby release the elongated rod within ten minutes of time to sound the alarm after a short time interval.
  • a digital clock comprising:
  • timing mechanism including rotatable tens of minutes drum having a shaft fixed thereto;
  • a digital clock as defined in claim 12 and further including an automatic alarm shutoff mechanism comprising:
  • an automatic alarm shutoff lever positioned bec. a tens of minutes geneva driver cam having a drivtween the shutoff rod and F lug ing lug mounted for meshing engagement with said reset lug may move the flulomallc alarm shutoff tens of minute geneva h l; lever to move the rod to shut off the alarm a short (I. an alarm sounding member having an al on time after the alarm has sounded in order to autosition and an alarm off position; matically shut off the alarm and re-engage the inc. a rod for moving said alarm member to its on or its terval lever.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
US391781A 1973-08-27 1973-08-27 Alarm clock timer Expired - Lifetime US3875737A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US391781A US3875737A (en) 1973-08-27 1973-08-27 Alarm clock timer
GB2453376A GB1455860A (en) 1973-08-27 1973-11-14 Alarm clock
GB5294773A GB1455857A (en) 1973-08-27 1973-11-14 Alarm clock
DE2400742A DE2400742A1 (de) 1973-08-27 1974-01-08 Weckeruhr
CH37774A CH585430B5 (ja) 1973-08-27 1974-01-11
CH37774D CH37774A4 (ja) 1973-08-27 1974-01-11
FR7401606A FR2242720B1 (ja) 1973-08-27 1974-01-17
JP49073785A JPS5046366A (ja) 1973-08-27 1974-06-26
HK496/77A HK49677A (en) 1973-08-27 1977-09-22 Alarm clock
HK402/79A HK40279A (en) 1973-08-27 1979-06-21 Alarm clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391781A US3875737A (en) 1973-08-27 1973-08-27 Alarm clock timer

Publications (1)

Publication Number Publication Date
US3875737A true US3875737A (en) 1975-04-08

Family

ID=23547920

Family Applications (1)

Application Number Title Priority Date Filing Date
US391781A Expired - Lifetime US3875737A (en) 1973-08-27 1973-08-27 Alarm clock timer

Country Status (7)

Country Link
US (1) US3875737A (ja)
JP (1) JPS5046366A (ja)
CH (2) CH37774A4 (ja)
DE (1) DE2400742A1 (ja)
FR (1) FR2242720B1 (ja)
GB (2) GB1455857A (ja)
HK (2) HK49677A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057957A (en) * 1976-04-08 1977-11-15 Matsushita Electric Works, Ltd. Alarm device of clocks
CN112558453A (zh) * 2020-12-25 2021-03-26 宁波斯佳电器有限公司 一种机械定时器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5248451U (ja) * 1975-10-02 1977-04-06

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US313656A (en) * 1885-03-10 Alarm-clock
US460751A (en) * 1891-10-06 Wilhelm madel
US2459107A (en) * 1940-12-03 1949-01-11 Casco Products Corp Drum type indicator alarm clock
US2583794A (en) * 1949-06-14 1952-01-29 Gen Electric Twenty-four-hour alarm clock
US2646659A (en) * 1951-10-17 1953-07-28 Bruce O Bower Automatic alarm reset mechanism
US2701439A (en) * 1949-09-17 1955-02-08 Junghans Geb Ag Clock alarm device settable to the minute
US2789410A (en) * 1954-08-28 1957-04-23 Tavannes Watch Co Sa Alarm time-piece
US2946182A (en) * 1957-03-25 1960-07-26 Gen Electric Alarm clock control mechanism
US3440814A (en) * 1967-12-18 1969-04-29 Gen Time Corp Electric clock alarm system
US3495396A (en) * 1966-12-10 1970-02-17 Sankyo Seiki Seisakusho Kk Numerically indicating timekeeper and timer
US3636699A (en) * 1970-07-17 1972-01-25 Gen Electric Digital alarm clock
US3738098A (en) * 1970-01-30 1973-06-12 Kieninger & Obergfell Alarm clock with hour and minute presetting

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US313656A (en) * 1885-03-10 Alarm-clock
US460751A (en) * 1891-10-06 Wilhelm madel
US2459107A (en) * 1940-12-03 1949-01-11 Casco Products Corp Drum type indicator alarm clock
US2583794A (en) * 1949-06-14 1952-01-29 Gen Electric Twenty-four-hour alarm clock
US2701439A (en) * 1949-09-17 1955-02-08 Junghans Geb Ag Clock alarm device settable to the minute
US2646659A (en) * 1951-10-17 1953-07-28 Bruce O Bower Automatic alarm reset mechanism
US2789410A (en) * 1954-08-28 1957-04-23 Tavannes Watch Co Sa Alarm time-piece
US2946182A (en) * 1957-03-25 1960-07-26 Gen Electric Alarm clock control mechanism
US3495396A (en) * 1966-12-10 1970-02-17 Sankyo Seiki Seisakusho Kk Numerically indicating timekeeper and timer
US3440814A (en) * 1967-12-18 1969-04-29 Gen Time Corp Electric clock alarm system
US3738098A (en) * 1970-01-30 1973-06-12 Kieninger & Obergfell Alarm clock with hour and minute presetting
US3636699A (en) * 1970-07-17 1972-01-25 Gen Electric Digital alarm clock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057957A (en) * 1976-04-08 1977-11-15 Matsushita Electric Works, Ltd. Alarm device of clocks
CN112558453A (zh) * 2020-12-25 2021-03-26 宁波斯佳电器有限公司 一种机械定时器

Also Published As

Publication number Publication date
HK40279A (en) 1979-06-29
FR2242720B1 (ja) 1977-09-23
GB1455860A (en) 1976-11-17
HK49677A (en) 1977-09-30
CH585430B5 (ja) 1977-02-28
CH37774A4 (ja) 1976-08-13
DE2400742A1 (de) 1975-03-06
GB1455857A (en) 1976-11-17
FR2242720A1 (ja) 1975-03-28
JPS5046366A (ja) 1975-04-25

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