US3888074A - Apparatus for clock - Google Patents

Apparatus for clock Download PDF

Info

Publication number
US3888074A
US3888074A US498082A US49808274A US3888074A US 3888074 A US3888074 A US 3888074A US 498082 A US498082 A US 498082A US 49808274 A US49808274 A US 49808274A US 3888074 A US3888074 A US 3888074A
Authority
US
United States
Prior art keywords
base plate
electrical
mounting device
circuit board
motor
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
US498082A
Other languages
English (en)
Inventor
Benno August Wagenknecht
Horst Erich Breckle
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.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo Corp
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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Application granted granted Critical
Publication of US3888074A publication Critical patent/US3888074A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/008—Mounting, assembling of components

Definitions

  • the apparatus comprises a base plate having one side which is mounted on the electrical motor of the clock in abutment with the rear wall of the motor.
  • the other side of the base plate has posts which are used to support an electrical circuit board for the clock.
  • Two plug contacts project outwardly from the base plate on the circuit board side and extend through openings in the circuit board The plugs have soldering lugs for connecting them to the electrical network of the circuit board.
  • the invention relates to a clock, especially an automobile crystal clock with a gearing connected with a time indicator and driven by the shaft of an electrical motor.
  • the clock further includes electrical elements arranged on a circuit board forming a control circuit connectable by plug contacts with a current source.
  • a housing encloses the clocks gearing, electrical motor, and the circuit board.
  • a clock having a relatively small electrical motor. Such a known clock is easily damaged due to mechanical shocks from the automobile, and is difficult to disassemble for repair. Further, small electrical motors are not suitable for clocks with digital indication due to the motors low power output.
  • the motor is designed as a supporting structural element.
  • a base plate is attached to the rear wall of the motor housing on the end opposite the gearing.
  • the base plate is designed as the sole support for a circuit board, and also serves as the emplacement for plug contacts and the housing.
  • the motor By designing the motor as a supporting element, separate supports can be eliminated and it is possible to utilize a large motor almost filling the space inside the housing.
  • a base plate is attached to the rear wall of the motor housing, and provides simple, stable, and safe attachment for the circuit board, as well as for plug contacts and for the housing. After removal of the housing, the circuit board with its structural elements is immediately accessible.
  • the clock according to the invention is simply designed, since the usual separate supports for the circuit board and the housing can be ornmitted.
  • the base plate is lackingly connected to the motor by U-shaped lugs extending from the motor through the base plate and then bent. This manner of connection is very shockproof and is detachable at any desired time by re-bending the U-shanks of the lugs.
  • the plug contacts it is advantageous to manufacture the base plate from an insulating mate rial. Then, the plug contacts can be connected directly with the base plate without a short circuiting to other elements.
  • pin-like guide fingers on the base plate for extending into corresponding bores in the circuit.
  • FIG. 1 is an exploded rear view of a clock
  • FIG. 2 is a top view of a base plate
  • FIG. 3 is a partial section through the base plate shown in FIG. 2 along the line III-IIl;
  • FIG. 4 is a sectional view throught the base plate shown in FIG. 2 along the line lV-IV.
  • FIG. l The rear side of an automobile crystal clock I is shown in Figure l as an exploded view illustrating a clock body 2, a gearing 3 on the rear side of the clock body, and an electrical motor 4, connected be a drive shaft (not shown) to the gearing.
  • the gearing 3 is arranged between two base plates 5 and 6 which are attached at some distance from each other by screws 7 on the rear wall of the clock body 2.
  • the gearing 3 is connected with the time indicators placed on the front side (not shown) of the clock body. In the present case, the time indicators are the hands of a clock.
  • the clock assembly 1 includes a base plate 8 and a circuit board 9 with an electrical network forming a control circuit.
  • a housing (not shown) surrounding a gearing 3, and electrical motor 4, a base plate 8, and the circuit board 9.
  • the housing has essentially a cylindrical surface, as well as a basically circular front side, and covers the above-mentioned parts, except the plug contacts 10 arranged on the base plate 8. These plug contacts are brought outward through openings in the rear side of the housing.
  • the housing has further spacer bolts provided with threads for the eventual attachment of the housing.
  • the electrical motor 4 is relatively large in relation to conventional motors. It is designed as a structural part and is attached on the gearing 3 on the side where the driven shaft is mounted. Two U-shaped lugs 12, 13 project from the rear wall 11 of the motor housing on the side opposite from the gearing. The lugs l2, 13 are spreadable, and as indicated by dashed lines, can be introduced into rectangular openings in the base plate. These U-shaped lugs with their shanks are spread apart for a safe anchoring of the base plate 8 on the housing of the motor which forms a dismountable, form-locking connection.
  • the base plate has an approximately circular shape. It has an abutting portion 16 directly adjacent to the rear wall of the motor housing 11 and an offset portion 17 reduced and placed above portion 16.
  • the plug contacts 10a, 10b extended from the side opposite the rear wall of the motor housing. As it is seen in FIG. 3 and 4, these plug contacts are connected by connection webs 18 with their own soldering pins 19 and 20. These soldering pins are attached with the help of rivets 21 and 22 to the base plate. As seen in FIG. 3, the soldering pins extend above the level of the base plate so that they penetrate the installed circuit board 9, and can be soldered there to the electric circuit.
  • the plug contacts 10a, 10b are connected with an outside source of current, whereby the circuit board and the remaining electrical devices, as for example, the motor, are connected to a current source.
  • the plug contact 100 has an extension 100 which presses against the motor housing when the base plate is mounted against the motor housing, thus effecting the ground wiring circuit to the motor.
  • the ground extension lc is shown in FIG. 4.
  • the base plate 8 has further a circular opening 23 which is placed over the drive shaft of the electrical motor 4 when the base plate is mounted.
  • Three posts 24, 2S, and 26, are integrally connected to the base plate 8 for attaching the housing (not shown).
  • the posts have one inner bore which is rectangular in cross-section.
  • the circuit board 9 has corresponding bores through which self-tapping screws anchored on the housing can be screwed into the bores in the sleeves.
  • Conically pointed guide pins 27 are further provided on the base plate 2 extending above the base plate and penetrating into corresponding bores 28 and 29 on the circuit board for securing the circuit board.
  • the base plate 8 has a recess 30 formed as a cavity, wherein the electrical elements are place when the circuit board is mounted.
  • the posts 24, 2S, and 26 do not penetrate into the mounted circuit board, but extend out from the circuit board and serve as spacers.
  • the base plate is manufactured in the present case from a transparent, insulating plastic material.
  • Electrical elements are arranged on the side of the circuit board 9, facing the base plate as shown in FIG. 1. They are soldered into an electrical circuit on the circuit board.
  • the circuit board has a larger surface than the base plate.
  • the smaller electrical elements are arranged on the surface of the circuit board opposite the recess 30 and extend into this recess.
  • the larger electrical elements are arranged mainly on the outer surface of the circuit board so that they extend around the base plate and the electrical motor.
  • the circuit board has two longitudinal slots 31 and 32, placed at right angles to each other, and through which the plug contacts a, 10b are conducted when the circuit board is mounted in its place.
  • a base plate having two sides
  • carrier means projecting from the otherside of said base plate for supporting an electrical circuit board
  • electrical coupling means projecting from said base plate for electrically coupling the electrical motor to the circuit board and to an external power sup- 2.
  • said mounting device as claimed in claim 1, wherein said carrier means comprises a plurality of posts projecting from said other side of said base plate, each post forming a receptacle for receiving a connector coupled to the circuit board.
  • mounting device as claimed in claim I, wherein said mounting means comprises two slots extending through said base plate and adapted to receive forked lugs extending from the electrical motor.
  • said electrical coupling means comprises a pair of plug contacts extending outwardly from said other side of said base plate, at least one of said contacts ex tending through said plate to form a resilient ground for contacting an abutting wall of the electrical motor.
  • said carrier means includes a plurality of pins projecting outwardly from said other side of said base plate, each pin being adapted to extend into a corresponding aperature in the electrical circuit board.
  • said one side of said base plate comprises an abutting portion for abutting a rear wall of the electrical motor and an offset portion spaced from the rear wall of the electrical motor when said base plate is mounted on the electrical motor.
  • said plug contacts include soldering pins for electrically coupling said plug contacts to the circuit board.
  • An apparatus for an electrical clock which is mounted in a housing, said mechanism comprising:
  • an electrical motor for driving a time indicator of the electrical clock, said motor having a driving end for coupling to the drive train of a time indicator of the clock, and a support end with a rear wall;
  • a base plate having an abutting side and a coupling side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Motor Or Generator Frames (AREA)
  • Electric Clocks (AREA)
US498082A 1973-08-21 1974-08-16 Apparatus for clock Expired - Lifetime US3888074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732342250 DE2342250A1 (de) 1973-08-21 1973-08-21 Uhr

Publications (1)

Publication Number Publication Date
US3888074A true US3888074A (en) 1975-06-10

Family

ID=5890337

Family Applications (1)

Application Number Title Priority Date Filing Date
US498082A Expired - Lifetime US3888074A (en) 1973-08-21 1974-08-16 Apparatus for clock

Country Status (6)

Country Link
US (1) US3888074A (enrdf_load_stackoverflow)
JP (1) JPS5051368A (enrdf_load_stackoverflow)
DE (1) DE2342250A1 (enrdf_load_stackoverflow)
FR (1) FR2241818A1 (enrdf_load_stackoverflow)
GB (1) GB1473003A (enrdf_load_stackoverflow)
SE (1) SE402028B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087506A1 (de) * 1982-03-03 1983-09-07 VDO Adolf Schindling AG Elektrisches Uhrwerk, insbesondere Quarzuhrwerk
US4435087A (en) 1981-01-14 1984-03-06 Matsushita Electric Works, Ltd. Motor-driven movement for timepiece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748845A (en) * 1971-12-02 1973-07-31 Bulova Watch Co Inc Electronic system module for crystal-controlled watch
US3778999A (en) * 1972-12-13 1973-12-18 Girard Perregaux Sa Electronic wristwatch
US3800523A (en) * 1970-07-27 1974-04-02 Suwa Seikosha Kk Quartz crystal wrist watch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800523A (en) * 1970-07-27 1974-04-02 Suwa Seikosha Kk Quartz crystal wrist watch
US3748845A (en) * 1971-12-02 1973-07-31 Bulova Watch Co Inc Electronic system module for crystal-controlled watch
US3778999A (en) * 1972-12-13 1973-12-18 Girard Perregaux Sa Electronic wristwatch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435087A (en) 1981-01-14 1984-03-06 Matsushita Electric Works, Ltd. Motor-driven movement for timepiece
EP0087506A1 (de) * 1982-03-03 1983-09-07 VDO Adolf Schindling AG Elektrisches Uhrwerk, insbesondere Quarzuhrwerk

Also Published As

Publication number Publication date
SE7410350L (enrdf_load_stackoverflow) 1975-02-24
SE402028B (sv) 1978-06-12
GB1473003A (en) 1977-05-11
JPS5051368A (enrdf_load_stackoverflow) 1975-05-08
FR2241818A1 (enrdf_load_stackoverflow) 1975-03-21
DE2342250A1 (de) 1975-02-27

Similar Documents

Publication Publication Date Title
US4045706A (en) Arrangement having a traveling-wave tube and a current supply unit
GB1108129A (en) Modular electrical connector assembly
US4370579A (en) Power tool having a printed circuit board
US3843854A (en) Switch-incorporating plug socket
EP0142237A1 (en) Components for electric motors
US4086752A (en) Electronic timepiece
JPS5339996B2 (enrdf_load_stackoverflow)
DE3061020D1 (en) Electrical connector housing with a mounting peg
EP0175426A3 (en) Transition adapter connector employing a printed circuit board
US4316277A (en) Electronic clock movement assembly
US3888074A (en) Apparatus for clock
US3048805A (en) Plug-in potentiometers
US3778999A (en) Electronic wristwatch
US5319277A (en) Electro-dynamic machine with an integral electrical service circuit
ES273726U (es) Sub-conjunto de alimentacion para motor electrico
CN215184165U (zh) 电池模组及应用所述电池模组的用电装置
US4263667A (en) Methods and apparatus for assembling an electrical instrument
US4416550A (en) Drive assembly for a timepiece
US2495531A (en) Instrument panel assembly
CN212717116U (zh) 一种泵用控制盒
US4508458A (en) Electric clock movement, particularly a quartz clock movement
US3784882A (en) Solenoid assembly
US4710658A (en) Connection socket for a submersible electric motor
MX167287B (es) Aparato para controlar el crecimiento de un banco de hielo alrededor de un aparato de enfriamiento
CN217593596U (zh) 易装配式皮肤导入仪