US3882668A - Alarm clock timer - Google Patents

Alarm clock timer Download PDF

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Publication number
US3882668A
US3882668A US388770A US38877073A US3882668A US 3882668 A US3882668 A US 3882668A US 388770 A US388770 A US 388770A US 38877073 A US38877073 A US 38877073A US 3882668 A US3882668 A US 3882668A
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United States
Prior art keywords
alarm
vibrator
cam
control lever
lever
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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
Application number
US388770A
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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 US388770A priority Critical patent/US3882668A/en
Priority to GB4844174A priority patent/GB1455308A/en
Priority to GB4846474A priority patent/GB1455309A/en
Priority to GB5294873A priority patent/GB1455306A/en
Priority to GB4844074A priority patent/GB1455307A/en
Priority to DE2360923A priority patent/DE2360923A1/de
Priority to CH1731973A priority patent/CH619347GA3/xx
Priority to JP49004839A priority patent/JPS5040173A/ja
Priority to FR7401605A priority patent/FR2241106B1/fr
Priority to US481883A priority patent/US3886723A/en
Priority to US05/481,636 priority patent/US3930358A/en
Priority to US05/481,834 priority patent/US3930360A/en
Application granted granted Critical
Publication of US3882668A publication Critical patent/US3882668A/en
Assigned to CHASE MANHATTAN BANK, N.A., THE reassignment CHASE MANHATTAN BANK, N.A., THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FREDERIKSPLEIN HOLDING 1970 B.V., TIMEX CLOCK COMPANY, A DE CORP., TIMEX COMPUTERS LTD., A DE CORP., TIMEX CORPORATION, A DE CORP., TIMEX ENTERPRISES, INC., A BERMUDA CORP., TIMEX GROUP LTD., A BERMUDA CORP., TIMEX MEDICAL PRODUCTS LTD., A BERMUDA CORP., TIMEX N.V.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

  • ABSTRACT An alarm vibrator control mechanism for a clock
  • an elongated lever extends along the lower portion of the timer for releasing an alarm vibrator at a preset time.
  • the elongated lever is controlled by a selector shaft mechanism which is posi- .5 l 1 2 2 Z 22 oo 2 5 0 50 8 l G n 00 H 5 W00 7; 2 m" u 8 n" 5 mm m m .c n r. u .e L .f C In M 5 Le .l U .mF l 11] 2 oo 5 55 .l .lZl
  • Radio digital alarm clock timers are now known in the horological art. Such radio alarms are generally designed to close a switch at a pre-seleeted time. and a known timer of this type is shown in a recent U.S. Pat, No. 3,725,617 to Boyles and Polonsky dated Mar. 20, I973, assigned to the same assignee as the present invention.
  • a rotatable units cam is positioned adjacent to a minutes display indicator for progressively actuating the minutes display indicator, a rotatable tens cam is spaced to the left of the units cam for actuating the tens of minutes display indicator and a rotatable hours cam is spaced to the left of the tens of minutes cam for actuating an hours display indicator.
  • a pair of coaxially mounted gear driven cam members with one of the cam members being axially movable is utilized for operating a switch mechanism at a preset alarm time to turn on a radio or a similar appliance at the preset alarm time.
  • This invention is concerned with the addition ofa vibrator type alarm mechanism to such a clock timer which may be operated by the same mechanism which operates the switch for a radio and the display indicators of the clock.
  • the prior art includes many different constructions and arrangements for controlling an audible alarm vibrator by itself or in combination with a switch for turning a radio ON and OFF. Some of these mechanisms are quite complex.
  • My invention is concerned with a relatively simple alarm vibrator control mechanism for such a clock timer which may be inexpensively manufactured and readily incorporated in a digital clock of the type disclosed in the U.S. Pat. No. 3,725,617; however, it is to be understood that it may also be utilized in other digital clock timer mechanisms or hand-type clock timer mechanisms.
  • an alarm clock timer includes a supporting structure and a timing mechanism for continuously applying a driving force to the components of the clock timer mechanism.
  • the clock timer includes a vibrator member for sounding an alarm which is connected to the supporting structure, and is movable to an alarm ON or an alarm OFF position.
  • An elongated alarm control lever is also mounted on the supporting structure and is movable into engagement with the vibrator member for shutting OFF the alarm.
  • a spring is connected to the elongated alarm control lever for urging the lever to the alarm ON position and a latch is formed on the lever for holding the lever in the alarm OFF position.
  • the elongated alarm control lever is uniquely mounted at the lower portion of the timer and it includes a centrally located tab for movement into contact with the alarm vibrator member.
  • a central portion of the elongated control lever is also shaped and positioned for control by a 12 hour alarm cam gear member.
  • One end portion of the elongated control lever is located adjacent to a minutes cam for control thereby. and another end portion is positioned adjacent to a manually operable selector cam setting member.
  • the alarm control lever is mounted for longitudinal movement to move the alarm vibrator to an alarm sounding position. It is also loosely mounted for tilting movement and for transverse movement.
  • a 12 hour cam member tilts the elongated alarm control lever into engagement with the cam which is connected to the minutes shaft, and then the minutes shaft cam which is located close to the latch lowers the alarm control lever at the preset alarm time to disen gage the latch to permit the elongated alarm control lever to move longitudinally under the force of the spring to sound the alarm.
  • the 12 hour alarm cam gear operates on the central portion of the elongated alarm control lever to readily tilt the entire lever reliably forwardly into engagement with the minutes cam.
  • the lever is held with sufficient force into contact with the minutes cam gear so that the minutes cam gear may readily and reliably lower the elongated lever to accurately release the latch at the preset alarm time.
  • the minutes cam and the latch are both located at one end portion of the elongated lever, the minutes cam may readily and reliably lower the lever at the alarm time although the elongated vibrator shutoff lever may be quite loosely mounted on the timer supporting structure with relatively great tolerances.
  • a unique units cam member is readily attached to the units digital display mechanism for moving the lever to release the latch, and the uniquely shaped elongated alarm control lever may be readily slid into the timer supporting structure and held thereon without the use of any separate supporting mechanisms.
  • the alarm control lever is simply provided with slots and tabs for cooperating with corresponding slots and tabs which are formed on the supporting structure.
  • a spring extends from the lever to the supporting structure for biasing the alarm control lever to the alarm ON position.
  • FIG. 1 is a front elevational view of a digital alarm clock timer constructed in accordance with my invention
  • FIG. 2 is a fragmentry exploded front perspective view of a portion of my unique alarm vibrator control mechanism which is incorporated in the digital clock shown in FIG. I, the parts of my vibrator control mechanism being shown in a position wherein they are under the control of an alarm selector cam, the parts being shown in a NO-WAKE position wherein they are prevented from operating to sound the vibrator or to close the switch of the alarm clock timer to turn a radio on;
  • FIG. 3 is a fragmentary exploded front perspective view generally similar to FIG. 2 including some parts of the display mechanism of the clock;
  • FIG. 4 is a fragmentary exploded rear perspective view of my alarm vibrator control mechanism which is incorporated in the digital clock shown in FIGS. I, 2, and 3, the parts of the vibrator control mechanism being shown in a position wherein the alarm selector member has been rotated to a NO-WAKE position for holding the vibrator control mechanism in the OFF position;
  • FIG. 5 is a fragmentary exploded rear perspective view similar to FIG. 4 showing the alarm selector cam in the ALARM position wherein the parts have been set to permit the alarm vibrator to sound at a preset time;
  • FIG. 6 is a fragmentary exploded rear perspective view generally similar to FIG. 5 showing the parts under the control of a 12 hour alarm time cam gear wherein the alarm time cam gear has functioned to close the switch at the preset alarm time and the 12 alarm time cam has also tilted the vibrator shutofflever into engagement with a minutes cam;
  • FIG. 7 is a fragmentary exploded rear perspective view generally similar to FIG. 6 showing the vibrator control lever after it has been moved downwardly to release the latch at the alarm time;
  • FIG. 8 is a fragmentary exploded rear perspective view generally similar to FIG. 7 showing a repeat alarm lever being actuated to move the vibrator shutoff lever longitudinally against the force of its spring to shut off the alarm vibrator for a predetermined short interval of time, the parts being shown as the repeat alarm lever moves into engagement with the vibrator shutoff lever but before the shutoff lever is moved from itsposition illustrated in FIG. 7 to its position illustrated in FIG. 6.
  • FIG. 9 is a rear elevational view of the digital clock timer shown in FIG. 1, showing the repeat alarm lever in its at rest position;
  • FIG. 10 is a detailed side cross-sectional view of a portion of the minutes drive mechanism for the vibrator shutoff lever of the digital clock shown in FIG. 1;
  • FIG. 11 is a detailed side cross-sectional view of the vibrator and the field laminations of the digital clock shown in FIG. 1;
  • FIG. 12 is a fragmentary exploded perspective view of the minutes cam construction for the vibrator shutoff lever of the digital clock shown in FIG. 1.
  • FIGS. 1 and 2 there is shown a digital clock which includes my unique alarm vibrator control mechanism.
  • the clock includes four numeral display indicators 2, 4, 6 and 8 which indicate minutes. tens of minutes, hours and tens of hours. respectively.
  • portions of the cams and other mechanisms for driving the display indicators are shown by reference numerals 12, 14, and 16, and my improved alarm vibra- 4 tor control mechanism is generally identified by reference numeral 20.
  • the clock timer includes a switch alarm mechanism for turning on a radio.
  • the construction includes a switch 22, switch actuating members 24 and 26, and a 12 hour alarm time cam mechanism 28.
  • This mechanism is described and illustrated in greater detail in US. Pat. No. 3,725,617 to Boyles and Polonsky dated Apr. 3, I973, assigned to the same assignee as the present invention.
  • the switch 22 includes a pair of switch blades 30 and 32 having a pair of switch contacts 33 and 34 mounted at their free end portions.
  • Rear switch blade 30 is somewhat longer than the front switch blade 32 and is formed of spring material for normally biasing the rear switch blade forwardly to hold the switch contacts in a closed position.
  • the switch blades may be mounted on a conventional switch block member 35 which may be connected to a rear plate 36 of the digital clock by any suitable securing means. As shown, the switch 22 is mounted so that the switch blades 30 and 32 are arranged in planes which are generally parallel to the base plate 36. With this arrangement, rearward or transverse movement of the free end portion of the switch blade 30 will open the switch contacts.
  • one of the switch actuating members is a generally vertical lever member 24 which is positioned between the rear switch blade 30 and the base plate 36 for opening or closing the switch in response to movement of the 12 hour alarm time cam mechanism 28, and particularly, its rearwardly extending shaft member 26 which abuts the lower portion of lever 24. It can be appreciated that rearward movement of the switch actuating lever 24 by shaft 26 will cause the lower portion of the lever to abut the front surface of switch blade 30 and further rearward movement of the lever will cause the switch blade 30 to be moved far enough rearwardly to open the switch contacts 34 and 33.
  • the alarm cam mechanism 28 allowing the switch actuating lever 24 to be moved forwardly at a preset alarm time to thereby turn on a radio or other alarm at a preset time will now be more particularly described.
  • the alarm cam mechanism 28 includes two coaxially mounted gears 40 and 42 which are provided with interacting cams 44 and 46, respectively. for causing relative axial movement of the gears at a preset time for actuating the switch 22.
  • Cam gear 44 functions as an alarm time cam and is driven at one revolution every 12 hours by the timing mechanism of the clock.
  • Cam 42. 46 is an alarm set cam and it is fixed to a shaft 48 which extends forwardly and rearwardly therefrom.
  • a knob 50 may be fixed to the forward end of the shaft 48 for manually rotating the alarm set cam 42, 46 to any desired alarm time.
  • a relatively simple alarm set time indicator may be incorporated with the alarm set cam 42 for indicating the alarm set time.
  • the principal component of the indicating mechanism is a disc 58 which may be readily snapped onto an outer portion of the shaft 48 for cooperation with a suitable slot 60 which may be formed in the front casing of the digital clock for viewing the hours numerals which are formed on the indicating disc.
  • the mechanism includes a bifurcated lever 62 which is pivoted by tabs 64 and 66 to the mounting plate 36 of the digital clock.
  • One downwardly extending arm 68 of the lever includes a U-shaped slot 70 for receiving an annular groove 72 which is formed in the shaft portion of the alarm time cam 40.
  • the other left arm 76 of the lever 62 extends I downwardly into a position to be actuated by a NO WAKE, RADIO WAKE, ALARM cam 82.
  • a manually setable SLEEP-ON-OFF cam mechanism 90 may also be provided for controlling the switch operating lever 24.
  • This mechanism is described in more detail in US. Pat. No. 3,725,615 to Robert L. Boyles and Samuel Polonsky, and with particular reference to FIG. 2, it can be seen that the mechanism includes a pivoted plural position lever 94 which may be provided with a forwardly extending tab 96 for riding on the surface of an ON-OFF-SLEEP cam 90.
  • the switch actuating lever 24 is shaped andpositioned so that it may be manually pushed downwardly at any time to close the switch without disturbing the position of shaft 26. To achieve this, an upper end portion is pivoted to the plural position lever 94' which in turn is arranged to be actuated by the ON-OFF-SLEEP cam 90. As illustrated in FIG. 2, the upper end of the I switch actuating lever 24 is formed with a forwardly extendingshaft portion which is received by an aperture which is formed in the plural position lever 94.
  • a convcntional pivot maybe provided forgenerally centrally supporting the plural position lever 94, and it can be appreciated that upon rotational movement of the sleep cam 90, the lever 94 may be moved upwardly and downwardly to change the position of the switch actuating lever 24 with respect to the switch blade 30.
  • ALARM VIBRATOR CONTROL MECHANISM According to .my invention, there is uniquely combined with the aforedescribed radio alarm clock timer mechanism, a mechanism for automatically and very accurately sounding an audible alarm vibrator at a preset alarm time after the radio alarm time.
  • This mecha nism is constructed so that it may be uniquely positioned within the radio alarm timer with the use of relatively few additional parts.
  • the primary component of this mechanism is an elongated vibrator shutoff lever 20 which stretches along the lower edge of the base plate 36 and is shaped to avoid several posts and shafts. It is also shaped to be selectively movable into engagement with control portions of the alarm clock timer, and with particular reference to the FIG.
  • shutoff lever 20 is shaped to avoid a lower spacer post 100, and is also shaped with an upstanding generally vertical finger portion 102 for engagement with a radial finger 105 of the alarm selector cam member 80.
  • the elongated lever 20 is also arranged to be selectively moved into engagement with the centrally located 12 hour alarm time cam gear 40, and a minutes cam 108 which is positioned at the right side of the timer and rotated at one revolution every ten minutes.
  • the shape of the elongated lever and the manner in which it cooperates with the other parts of the radio alarm clock timer may best be seen in the FIGS. 4, 5, 6, 8 and 9 rear perspective views of the alarm clock timer.
  • the right end portion 110 of the vibrator control lever is shown at the left of the drawing while the left end portion 112 of the vibrator control lever 20 is shown at the right side of the drawing.
  • end portion 110 will always be referred to as the right end portion while the end portion 112 will always be referred to as the left end portion in spite of the fact that the parts will appear reversed in the rear perspective views of FIGS. 4 through 9.
  • the principal function of the vibrator shutoff lever 20 is to permit or prevent the sounding of an audible alarm vibrator member against the field laminations 122.
  • the vibrator 120 may be fixed to the upper portion of base plate 36 by means of two rivets 124 and 126. As shown, it extends generally vertically downwardly and its lower end is formed with a rearward tab 128 for contact with the field laminations 122.
  • the lowerportion of the vibrator includes a forwardly extending tab 130 which is formed with a cutout portion having an inclined surface 132 for engagement with a rearwardly lanced tab 134 that is struck from the shutoff lever 20.
  • the vibrator shutoff lever 20 is very loosely mounted on the supporting structure and because of the relationship of its control tabs and parts-to each other, it may be formed with relatively great manufacturing tolerances.
  • the right end portion of the lever is formed with a tab 136 that extends rearwardly of the base plate 36, and it has a forward surface 138 for cooperating with the rear surface of the base plate to limit forward movement of the right end portion of vibrator shutoff lever.
  • the principal portion of the lever is located in front of the base plate 36 and is provided with a rearwardly extending tab 140 at its left portion for contactwith the front surface of the plate to limit rearward movement of the shutoff lever.
  • a pivot for the left portion of the lever is achieved by a pivot tab 142 which extends rearwardly and is received by a slot 144 which is formed in the base plate.
  • the right portion of the elongatedshufoff lever 20, and particularly the tab 136, is also provided with a notch 146 for receiving one end of a spring 148 to bias the lever in a rightward direction (leftward as shown in FIG. 4) to its vibrator sounding position.
  • a forwardly struck tab 147 may also be provided on the base plate 36 to limit rearward movement of the lever 20 and to act as a pivot surface for the lever.
  • the vibrator shutoff lever 20 has three modes of freedom. It can move longitudinally to the right or the left to permit the vibrator 120 to sound or to prevent the vibrator from sounding. It can tilt forwardly about a hinge line close to the bottom edge of the base plate 36 to move into engagement with a minutes shaft cam 108, and it can also be moved transversely downwardly, particularly at its right portion 110, for releasing a latch 150 that holds the lever in the vibrator shutoff position.
  • the shutoff lever 20 is held in its NO WAKE position by a finger 104 of the selector cam 80. It can be seen that an axially extending surface 152 of the finger has been rotated into contact with the upwardly extending finger 102 of the vibrator shutoff lever 20 to move the lever to the left against the force of spring 148. During this movement, the tab 134 of the shutoff lever slides on the inclined surface 132 of the vibrator 120 to pull the vibrator tab 128 forwardly to thereby prevent it from sounding against the field laminations 122.
  • the right portion of the vibrator shutoff lever 20 is provided with a latch tab 150 that extends between the principal portion of the shutoff lever and its right rear tab 136 for holding the lever 20 in latching engagement within an upwardly extending notch 156 that is formed in the base plate 36.
  • the vibrator shutoff lever 20 is held to prevent the vibrator 120 from sounding when the selector cam member 80 is rotated counterclockwise from the NO WAKE position shown in FIG. 4 to the ALARM set position shown in FIG. 5. It can be appreciated that when the alarm selector cam member 80 is moved counterclockwise, the radially extending finger 104 will be moved from its upper position shown in FIG. 4 to its lower position shown in FIG.
  • the central portion of the vibrator shutoff lever 20 is provided with a notched out portion 160 for receiving shaft 26 of the alarm time cam gear 40 and a slide tab 162 for cooperating with the rearward surface of the alarm time cam 40.
  • the lever 20 is stamped with a relatively small forwardly extending protrusion 162 adjacent to the notched out portion 160 for slidable engagement with the rear surface of the alarm time cam gear 40.
  • the spring 148 is anchored at one of its ends 149 to an upper portion of the base plate 36 and thus, in addition to pulling the tab 136 to the right, it lifts the tab 136 and tilts the upper portion of the lever forwardly to hold the protrusion 162 into engagement with the rear surface of gear 40.
  • the upper right portion 110 of the vibrator shutoff lever 20 is provided with an upwardly extending tab 166 for engagement with the minutes shaft cam 108 when the 12 hour alarm time cam gear 40 has moved forwardly to tilt the lever 20 into engagement with the minutes cam 108.
  • the vibrator shutoff lever 20 is provided with a curved cutout portion 170 for very freely receiving the shaft 172 of the minutes cam 108 so that the small upwardly extending cam finger 166 may readily slide in engagement with an annular cam surface 176 of the minutes cam 108.
  • the vibrator alarm minutes cam 108 includes a forwardly extending hollow shaft portion 177 for receiving a minutes cam drive shaft 178 which may integrally formed with the cam 12 which drives the minutes display indicator 2, a cam disc portion 176, and a rearwardly extending shaft portion 172 for reception in an aperture 182 which is formed in the base plate 36.
  • the cam portion 176 is annular in shape, it extends for 360 degrees close to the periphery of the disc on the rear surface of the disc, and it includes an abrupt trigger shelf portion 186 for engagement with the upper surface of the tab 166 to move the tab 166 and the vibrator shutoff lever downwardly to release the latch of the vibrator shutoff lever from the notch 156 in the base plate at a precise number of minutes after the radio alarm time.
  • This released posi tion is shown more particularly in FIG. 7 and it can be appreciated that when the latch is released, spring 148 will cause the alarm shutoff lever to be moved to the right (to the left as shown in FIG. 7) to release the alarm vibrator 120 to thereby permit the alarm to sound.
  • the angular orientation of the shelf portion 186 is preferably such that the release of the latch lever 20 occurs as the units digit 9 appears at the display indicator 2.
  • the selector cam 80 is rotated counterclockwise to the ALARM position shown in FIG. 1. This motion releases the finger 105 of the selector cam 80 from the upwardly extending finger 102 of the vibrator shutoff lever, and the spring 148 holds the latch 150 of the vibrator shutoff lever 20 against the right surface of the latch notch 156. In addition, this motion releases cam 82 of the selector cam 80 from the bifurcated lever 62 to permit the switch 33, 34 to be operated.
  • the alarm set knob 50 is rotated to the six o'clock position illustrated in FIG. 1 and the 12 hour alarm cam gear 40 can now operate to move forwardly to tilt the alarm shutoff lever 20 when finger 46 lines up with the notch formed in the alarm time cam gear 40.
  • the switch contacts 33, 34 will remain in the open position as the finger 46 of the alarm set cam 42 slides on the forward surface of the continuously rotatable alarm time earn 40.
  • the finger 46 will have moved to the notch in the alarm time cam and the resilient switch blade will move the lower portion of lever 24 forwardly to move the shaft 26 and the alarm time cam 40 to the position illustrated in FIG. 6.
  • the switch 33, 34 will be moved to its closed position, and more importantly, in accordance with the instant invention, the spring 148 of the elongated alarm shutoff lever 20 will tilt the lever 20 about a hinge line close to the bottom edge of the base plate 36 to move the trigger finger 166 of the alarm shutoff lever 20 into engagement with the minutes earn 108.
  • One of the repeat alarm mechanisms which may be provided for shutting off the alarm vibrator while permitting the radio to stay on includes the repeat alarm bell crank lever 200 illustrated in FIG. 9.
  • a plunger 218 which extends upwardly from the top wall of the clock may be manually depressed in order to shut off the alarm for a predetermined short time interval, and with particular reference to FIG. 8, it can be seen that depression of the plunger 218 will move the downwardly extending finger 204 of the bell crank 200 to the left (right as viewed in the rear perspective view of FIG. 8) into engagement with the rearwardly extending pivot finger 142 of the vibrator shutoff lever 20 to move the vibrator shutoff lever to the left to thereby pull the vibrator 128 rearwardly to shut off the alarm.
  • the latch 150 of the lever 20 will be re-positioned within the latch notch 156 of the base plate 36 to hold the vibrator shutoff lever 20 in the alarm OFF position while the repeat alarm bell crank lever 200 and its plunger member 218 are returned to their upper positions under the force of spring 206.
  • the downwardly extending finger 204 of the repeat alarm bell crank lever will be moved to the right out of the way of the vibrator shutoff lever 20.
  • the minutes cam 108 can function to resound the alarm a short time interval after the repeat alarm mechanism has been actuated.
  • the shelf 186 of the minutes cam will move into engagement with the upwardly extending trigger finger 166 of the vibrator shutoff lever to move the lever 20 downwardly to release the latch 150 to thereby permit the vibrator 128 to resound.
  • the selector cam may be rotated in a clockwise direction from the ALARM position to the RADIO WAKE or the NO WAKE position.
  • the radially outwardly extending cam surface I04 of the selector cam 80 will be moved upwardly from the ALARM position illustrated in FIG. 5 to the RADIO WAKE position or to the NO WAKE position illustrated in FIG. 4, and during this movement the entire vibrator shutoff lever 20 will be moved longitudinally to the left (right in FIGS. 4 and 5) to pull the vibrator 120 away from the field laminations 122 to shut off the alarm.
  • the pivot finger 142 and the upwardly extending trigger tab 166 at the right end portion of the lever for cooperating with the minutes cam 108 can be readily formed during the stamping operation.
  • the latch 150 of the vibrator shutoff lever 20 is located almost directly below the shelf 186 of its actuating cam 108 at the right end portion of the lever so that relatively accurate and positive control of the latch is achieved.
  • the 12 hour alarm time cam gear 40 is required to tilt the entire vibrator lever, and thus, it is uniquely located at the central portion of the vibrator shutoff lever so that the lever actuating protrusion 162 may readily tilt the entire vibrator shutoff lever, and particularly its right end portion into engagement with the cam 108.
  • the mechanism may base plate slots 144 and 156 which receive tabs of the vibrator shutoff lever 20.
  • the shutoff lever 20 is also uniquely shaped so thatit may be readily sandwiched between the other components of the digital clock.
  • an elongated alarm control lever mounted on said supporting structure and movable into engagement with said member forshutting off the alarm, said elongated alarm control lever having acentral portion and two end portions;
  • a first cam means driven by said timing mechanism in selective engagement with an end portion of said alarm control lever for moving said lever transversely at a preset time to disengage said latch to permit said elongated alarm control lever to move longitudinally under the force of said spring means to move said member to said first alarm position at a preset time;
  • a second cam means driven by said timing mechanism in selective engagement with the central portion of said alarm control lever for tilting said alarm control lever into engagement with said first cam means a short time prior to said preset time.
  • a second cam member rotatably mounted on said supporting structure in coaxial relationship with said first cam member and axially movable with respect thereto;
  • An alarm clock switch timer mechanism comprising:
  • an alarm vibrator control lever mounted on said supporting structure and movable into engagement with said audible alarm vibrator for shutting off the alarm
  • a switch control lever mounted on said supporting structure for moving said switch to an open or closed position
  • a second cam means driven by said timing mechanism in selective engagement with the alarm vibrator control lever for moving the alarm vibrator control lever into engagement with said first cam means a short time prior to said predetermined alarm vibrator time, said second cam means being in engagement with said switch control lever for moving said switch to a closed position when said second cam means moves the vibrator control lever into engagement with the first cam means to thereby close the switch at the commencement of the actuating movement of the'alarm vibrator control lever by said first cam means.
  • An alarm clock switch timer mechanism as defined in claim 6 wherein the first cam means is driven by said timing mechanism at l revolution every 10 minutes and said second cam means is driven by said timing mechanism at one revolution every l2 hours.
  • a rotatable units member for progressively actuating the minutes display indicator to display numerals from zero through nine to indicate minutes;
  • an alarm vibrator control lever mounted on said supporting structure and movable into engagement with said audible alarm vibrator for shutting off the alarm;
  • a switch control lever mounted on said supporting structure for moving said switch to an open or closed position

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Emergency Alarm Devices (AREA)
US388770A 1973-08-16 1973-08-16 Alarm clock timer Expired - Lifetime US3882668A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US388770A US3882668A (en) 1973-08-16 1973-08-16 Alarm clock timer
GB4844174A GB1455308A (en) 1973-08-16 1973-11-14 Alarm clock mechanism
GB4846474A GB1455309A (en) 1973-08-16 1973-11-14 Alarm clock mechanism
GB5294873A GB1455306A (en) 1973-08-16 1973-11-14 Alarm clock mechanism
GB4844074A GB1455307A (en) 1973-08-16 1973-11-14 Alarm clock mechanism
DE2360923A DE2360923A1 (de) 1973-08-16 1973-12-06 Weckeruhr
CH1731973A CH619347GA3 (enrdf_load_stackoverflow) 1973-08-16 1973-12-11
JP49004839A JPS5040173A (enrdf_load_stackoverflow) 1973-08-16 1973-12-29
FR7401605A FR2241106B1 (enrdf_load_stackoverflow) 1973-08-16 1974-01-17
US481883A US3886723A (en) 1973-08-16 1974-06-21 Alarm clock timer
US05/481,636 US3930358A (en) 1973-08-16 1974-06-21 Alarm clock timer
US05/481,834 US3930360A (en) 1973-08-16 1974-06-21 Alarm clock timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US388770A US3882668A (en) 1973-08-16 1973-08-16 Alarm clock timer

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US05/481,636 Division US3930358A (en) 1973-08-16 1974-06-21 Alarm clock timer
US05/481,834 Division US3930360A (en) 1973-08-16 1974-06-21 Alarm clock timer

Publications (1)

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US3882668A true US3882668A (en) 1975-05-13

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US388770A Expired - Lifetime US3882668A (en) 1973-08-16 1973-08-16 Alarm clock timer

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US (1) US3882668A (enrdf_load_stackoverflow)
JP (1) JPS5040173A (enrdf_load_stackoverflow)
CH (1) CH619347GA3 (enrdf_load_stackoverflow)
DE (1) DE2360923A1 (enrdf_load_stackoverflow)
FR (1) FR2241106B1 (enrdf_load_stackoverflow)
GB (4) GB1455306A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51161159U (enrdf_load_stackoverflow) * 1975-06-17 1976-12-22

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100961A (en) * 1959-10-15 1963-08-20 Int Register Co Clock operated electric switch and alarm buzzer control device
US3609956A (en) * 1968-07-27 1971-10-05 Sankyo Seiki Seisakusho Kk Numerically indicating timekeeper attached with timer and/or alarm
US3762151A (en) * 1971-11-18 1973-10-02 Seiko Koki Kk Time-detecting system for a digital interval timer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100961A (en) * 1959-10-15 1963-08-20 Int Register Co Clock operated electric switch and alarm buzzer control device
US3609956A (en) * 1968-07-27 1971-10-05 Sankyo Seiki Seisakusho Kk Numerically indicating timekeeper attached with timer and/or alarm
US3762151A (en) * 1971-11-18 1973-10-02 Seiko Koki Kk Time-detecting system for a digital interval timer

Also Published As

Publication number Publication date
CH619347GA3 (enrdf_load_stackoverflow) 1980-09-30
GB1455307A (en) 1976-11-10
FR2241106A1 (enrdf_load_stackoverflow) 1975-03-14
DE2360923A1 (de) 1975-02-27
GB1455308A (en) 1976-11-10
JPS5040173A (enrdf_load_stackoverflow) 1975-04-12
GB1455306A (en) 1976-11-10
GB1455309A (en) 1976-11-10
FR2241106B1 (enrdf_load_stackoverflow) 1978-04-21

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