US3905189A - Mechanical improvement on an alarm clock - Google Patents

Mechanical improvement on an alarm clock Download PDF

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Publication number
US3905189A
US3905189A US456434A US45643474A US3905189A US 3905189 A US3905189 A US 3905189A US 456434 A US456434 A US 456434A US 45643474 A US45643474 A US 45643474A US 3905189 A US3905189 A US 3905189A
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US
United States
Prior art keywords
clock
case
alarm clock
alarm
adjuster wheel
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
Application number
US456434A
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English (en)
Inventor
Roland Siefert
Hans Seckinger
Herbert Krosche
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.)
Kienzle Uhrenfabriken GmbH
Original Assignee
Kienzle Uhrenfabriken GmbH
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 Kienzle Uhrenfabriken GmbH filed Critical Kienzle Uhrenfabriken GmbH
Application granted granted Critical
Publication of US3905189A publication Critical patent/US3905189A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/021—Controls (winding up the alarm; adjusting and indicating the waking time)

Definitions

  • an alarm clock comprising an openend clock case, a plate carrying the clock mechanism and an adjuster wheel for adjusting clock time and alarm time.
  • the adjuster wheel is mounted for free rotation on a shaft which has a pinion mounted on one end for rotation therewith.
  • the pinion co-acts with the adjuster wheel and drivingly engages the different gears of the clock hand and alarm hand adjusting mechanism.
  • Located between the pinion and the adjuster wheel is a Slip Coupling.
  • the clock case is provided with an opening through which the adjuster wheel protrudes and has further openings which receive corresponding studs located on the clock mechanism carrying plate.
  • the studs have rubber surfaces and serve as feet for supporting the clock in its normal position of use.
  • the present invention relates to improvements in alarm clocks and in particular to an improved mechanism for adjusting the position of the clock hands and for setting the alarm, and to a mounting arrangement for the plate carrying the clock works.
  • the dogs will also fall into the notches if the hands of the clock are rotated anti-clockwise, whereby the alarm tripping wheel and the alarm pointer will be entrained with any further anti-clockwise movement of the hands, because in this direction of'movement the dogs are not guided by the inclined surface but are forced against a vertical face of respective notches and cannot be lifted out of the latter.
  • a single direction of rotation is'therefore generally prescribed for adjusting the clock hands, for example when setting the correct time, and for setting the alarm.
  • the clock may be damaged; or at any rate there is unwanted interference with the time displayed by the clock or the time at which the alarm is set to go off. This kind of situation can also arise if the knob for adjusting the alarm and/or the hands,ean be moved if accidentally touched.
  • An object of the present invention is therefore to design the mechanism for adjusting the clock hands orthe alarm so that the danger of damaging the mechanism, should an attempt be made to make said adjustments in the wrong direction is at least substantially eliminated.
  • an alarm clock comprising a spindle, an adjuster wheel freely rotatable on said spindle, a pinion co-operating with said adjuster wheel and mounted to said spindle for rotation therewith, and spring means located between the adjuster wheel and the pinion to provide frictional driving contact therebetween, the arrangement being such that said driving contact ceases when the force required to rotate said pinion exceeds a predetermined magnitude.
  • the alarm adjuster wheel is arranged at a corner of the clock case and can be operated through a slot or opening formed at said corner, while the clock hand adjuster wheel can be operated through a slot or opening formed at the carry the clock mechanism or works, which plate at the time of final assembly of the clock is simply mounted in an open-front clock case and the case then closed off at the front.
  • the plate carrying the works is inserted into the case, the studs on the plate are engaged in corresponding recesses in the case, while utilizing the elasticity of the material of the case to facilitate the mounting of the plate therein. It is well known in this context to make the studs of an elastic material. These studs are components which are separate from the plate carrying the works and which can be attached thereto.
  • an alarm clock comprising an open-end clock case and a plate on which the clock works are mounted and which is arranged to close said case, wherein the clock case has further openings on one side thereof and at least one recess on the side opposite said further openings arranged to receive corresponding studs of which at least the outer surfaces are covered with an elastic material, and wherein the elastic surface of the studs received in said further openings protrude therethrough to form feet for the clock.
  • FIG. 1 is a schematic cross-sectional view through the clock face.
  • FIG. 2 is a schematic arrangement showing the adjuster wheels in the clock.
  • FIG. 3 is a view in cross-section of an adjuster wheel, a pinion, a friction coupling and a spindle forming part of a mechanism for adjusting the hands of a clock or an alarm setting.
  • the case 1 has holes 2 disposed on the face on which it is to stand and is provided internally on the side opposite said face with one or more recesses 3. Both the holes 2 and the recesses 3 are used as attachment points for a plate 4 carrying the works.
  • the entire mechanism of the clock is attached to one side of the plate while the bezel is attached to the other side.
  • Arranged on the top 5 of the plate 4 as seen in the drawing is one or more first studs 6 which may have any crosssectional shape and which are intended to engage recesses 3.
  • a cover member for example a sleeve 7 of an elastic material, for instance rubber.
  • the external dimensions of the sleeves 7 are so chosen that they are a light push fit in the recess 3.
  • the second studs 9 may have any desired cross-sectional shape. Conveniently, when seen in longitudinal cross-section the studs 9 may have a trapezoidal configuration, as shown in the drawing. This configuration facilitates the assembly and removal of the plate 4 into and out of the clock case.
  • second studs 9 are also provided with an elastic component cover member, such as the cup shaped member shown in FIG. 1. As will be seen from the Figure. when the plate 4 is inserted in its correct position, the studs 9 will force the member 10 through the associated hole 2 to project beyond the bottom face of the case. as shown at 11.
  • the bottom studs 9, with the elastic members 10 fitted thereto are introduced into the holes 2.
  • the plate 4 is then forced downwards, thereby compressing the clastic members 10, and the case is widened vertically so that the top stud or studs 6, having an elastic cover member fitted thereto, can be passed beneath a small retaining lip 12 located on the clock case, and engaged in the recess or recesses 3.
  • the projecting parts 11 of the elastic members 10 form the non-slip feet of the case.
  • the design illustrated avoids the need for the separate attachment of feet to the case, by modifying conventional components required to close off the case and to mount the plate carrying the works in said case, without incurring any additional costs.
  • the invention ensures absolutely permanent attachment of non-slip feet without the need for an adhesive.
  • the plate carrying the works is secured in the case 1 through the elastic members 7., l0. Penetration of dirt through the holes 2 is prevented by circumferential projections arranged on the members 10 and bearing against the edge of the holes 2.
  • FIG. 2 illustrates how the adjuster wheels of the clock hand and alarm setting mechanism may be arranged in the clock case 1.
  • an alarm adjuster wheel 13 is located at an upper corner of the case and extends through a slot or opening 14 in the wall 15 of the case, thereby enabling the wheel to be rotated from outside the case, for example by using the thumb.
  • the wheel may be knurled and the case curvature in the vicinity of the opening 14 may be substantially the same as that of the periphery of the adjuster wheel projecting through the opening.
  • the alarm adjuster wheel 13 is connected to the alarm adjuster pinion 16 via a slip coupling, hereinafter described with reference to FIG. 3, and the pinion 16 operates an alarm tripping wheel 18 over an intermediate gear 17.
  • a clock hand adjuster wheel is received in an opening in the bottom side 19 of the case and protrudes therethrough.
  • the clock hand adjuster wheel may also be connected to a pinion, such as that shown at 21, through a slip coupling, which pinion 21 is arranged to drive a wheel (not shown) of the hand mechanism, for example the minute wheel or the change wheel for the hand system, over an intermediate gear 22.
  • the alarm adjuster wheel 13 is arranged on a spindle 23 so that on the one hand it is rotatable in relation thereto. and on the other hand, as illustrated, projects through the opening 14 in the wall 15 of the case.
  • the alarm adjuster wheel 13 bears against a collar 24 on the spindle 23.
  • the invention described unites a particularly neat arrangement of the adjuster wheels with a means of pro tecting the alarm adjuster and the clock hand adjuster mechanism against damage. Even if the adjuster wheels are incorrectly operated, the adjuster mechanism will not be damaged a result hereof.
  • the spindle is carried at one end thereof in a relatively long bearing. Furthermore, the wheel 13 is accurately guided in the opening 14 so that a secure bearing is achieved without the need for additional bearing devices.
  • An alarm clock comprising:
  • said clock case having further openings on one side thereof and at least one recess on the side opposite said further openings, said further openings and said recess being arranged to receive corresponding studs lo* cated on opposite sides of said plate, at least the outer surfaces of said studs being covered with an elastic material, the elastic surfaces of the studs being received in said further openings and protruding therethrough to form feet for the clock.
  • an adjuster wheel mounted for free rotation on said spindle, said adjuster wheel being accommodated in an opening in a wall of said clock case and terminating at least substantially flush with the outer surface of said wall.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US456434A 1973-04-03 1974-03-29 Mechanical improvement on an alarm clock Expired - Lifetime US3905189A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7312473 1973-04-03
DE7313388 1973-04-10

Publications (1)

Publication Number Publication Date
US3905189A true US3905189A (en) 1975-09-16

Family

ID=25947171

Family Applications (1)

Application Number Title Priority Date Filing Date
US456434A Expired - Lifetime US3905189A (en) 1973-04-03 1974-03-29 Mechanical improvement on an alarm clock

Country Status (4)

Country Link
US (1) US3905189A (enExample)
FR (1) FR2224795B3 (enExample)
GB (1) GB1455631A (enExample)
IT (1) IT1003976B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996736A (en) * 1974-09-13 1976-12-14 Bodet Marie Therese Clock or calendar with removable casing
DE2947244A1 (de) * 1979-11-23 1981-05-27 Kieninger & Obergfell Fabrik für technische Laufwerke und Apparate, 7742 St. Georgen Stelleinrichtung fuer eine signaluhr, insbesondere weckeruhr
US4322835A (en) * 1979-09-14 1982-03-30 Vdo Adolf Schindling Ag Housing assembly for instruments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253724B (en) * 1991-03-11 1995-03-29 Wong Tak Hoi Time-piece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1905655A (en) * 1932-03-19 1933-04-25 Ingraham E Co Clock
US2253715A (en) * 1940-02-02 1941-08-26 Lux Clock Mfg Co Inc Clock
US2532599A (en) * 1947-09-15 1950-12-05 Bourquin Edgar Clock mounting means
US2576119A (en) * 1945-05-28 1951-11-27 Holzner Adolf Wall and desk cyclometer clock
US3022627A (en) * 1956-07-17 1962-02-27 Junghans Geb Ag Table alarm clock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1905655A (en) * 1932-03-19 1933-04-25 Ingraham E Co Clock
US2253715A (en) * 1940-02-02 1941-08-26 Lux Clock Mfg Co Inc Clock
US2576119A (en) * 1945-05-28 1951-11-27 Holzner Adolf Wall and desk cyclometer clock
US2532599A (en) * 1947-09-15 1950-12-05 Bourquin Edgar Clock mounting means
US3022627A (en) * 1956-07-17 1962-02-27 Junghans Geb Ag Table alarm clock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996736A (en) * 1974-09-13 1976-12-14 Bodet Marie Therese Clock or calendar with removable casing
US4322835A (en) * 1979-09-14 1982-03-30 Vdo Adolf Schindling Ag Housing assembly for instruments
DE2947244A1 (de) * 1979-11-23 1981-05-27 Kieninger & Obergfell Fabrik für technische Laufwerke und Apparate, 7742 St. Georgen Stelleinrichtung fuer eine signaluhr, insbesondere weckeruhr
EP0029576A3 (en) * 1979-11-23 1981-10-14 Kieninger & Obergfell Fabrik Fur Technische Laufwerke Und Apparate Gmbh & Co. Setting device for a signalling clock, especially an alarm clock

Also Published As

Publication number Publication date
FR2224795B3 (enExample) 1977-01-21
IT1003976B (it) 1976-06-10
GB1455631A (en) 1976-11-17
FR2224795A1 (enExample) 1974-10-31

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