US3888073A - Construction to facilitate assembly of a timepiece - Google Patents

Construction to facilitate assembly of a timepiece Download PDF

Info

Publication number
US3888073A
US3888073A US212611A US21261171A US3888073A US 3888073 A US3888073 A US 3888073A US 212611 A US212611 A US 212611A US 21261171 A US21261171 A US 21261171A US 3888073 A US3888073 A US 3888073A
Authority
US
United States
Prior art keywords
plate
shafts
pillars
plates
bridge plate
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
US212611A
Other languages
English (en)
Inventor
Masahiro Kurita
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Application granted granted Critical
Publication of US3888073A publication Critical patent/US3888073A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • 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
    • G04B29/00—Frameworks

Definitions

  • ABSTRACT In a timepiece. a pair of support plates are mounted in fixed spaced relationship on pillars and a plurality of gear wheels with pivot shafts are disposed between said plates and rotatably mounted in bearing means on the plates. One longitudinal end of each of the gear wheel shafts is initially disposed in the bearing means on one of the plates. To facilitate assembly of the other plate. the other longitudinal ends of the gear wheel shafts are temporarily supported in predetermined alignment by holes in a relatively thin guide sheet, thereby making it a relatively simple matter to place the other plate in position to complete the assembly in which the gear wheels are rotatably supported between the two plates.
  • the present invention relates to timepieces and more particularly to facilitating assembly of gear wheels between two support plates of a timepiece.
  • a base plate and a bridge plate are supported in fixed spaced relationship by pillars and a plurality of gear wheels and an anchor each having pivot shafts are disposed and rotatably supported between said plates.
  • the lower ends of the shafts of the gear wheels and anchor are initially placed in the respective bearing means in the base plate so that the gear wheel and anchor shafts are generally vertically disposed.
  • a drawing force is applied to the anchor as the shafts of the gear wheel and anchor are disposed in the aforesaid upright dispositions and before the bride plate is assembled.
  • the magnetic force tends to cause the unsupported upper ends of the gear wheel and anchor shafts to lean over or to become otherwise misaligned or displaced from their generally upright disposition.
  • the misaligned and displaced shafts make it extremely difficult to insert the upper ends of the gear wheel and anchor shafts into the bearing support openings on the bridge plate.
  • Another object of the invention is to provide for easy assembly and disassembly of a timepiece without requiring any special tools and which overcomes disadvantages in known methods of assembly, thereby resulting in reducing manufacturing and repair costs.
  • a base plate 1 and a bridge plate 2 made of relatively thin material.
  • the two plates are held in fixed spaced relationship by means of pillars 3 and 4.
  • Rotatably supported between the two plates 1, 2 are a plurality of rotatable elements which are shown in the drawing to include gear wheels 5, 6, and 7 and an anchor 8.
  • a drawing force is applied to the anchor 8.
  • This drawing force is applied at the stage of assembly when the gear wheels 5, 6 and 7 and the anchor 8 are each in a generally upright positions. that is. with the lower ends of the gear wheel and anchor shafts disposed in suitable pivot supports in the base plate l, but before the bridge plate 2 is placed in position. Accordingly. with the upper ends of the gear wheel and anchor shafts unsupported. there is a tendency for the magnet which is used to apply the drawing force to the anchor 8 to apply its magnetic force to the gear wheels 5, 6, 7, thereby tending to cause the latter to lean over or otherwise be displaced from their 2 generally upright disposition. When this occurs it is extremely difficult to insert the upper ends of the shafts of the gear wheels 5, 6, 7 and anchor 8 into the hearing support openings on the bridge plate 2.
  • the aforesaid difficulty is overcome by the use of a guide plate 9 which maintains the upper ends of the shafts of the gear wheels 5, 6, 7 and anchor 8 in alignment at all times even when the drawing force of a magent is applied to the anchor.
  • the guide plate 9 is a thin plate adapted to rest on a shoulder on the pillars 3, 4 so that the guide plate 9 is supported by the pillars 2, 3 in fixed spaced relationship relative to the base plate 1.
  • the guide plate 9 has a plurality of openings adapted to receive the upper end portions of the shafts of the gear wheels 5,6,7 and anchor 8 to temporarily support the upper ends of said shafts before the bridge plate 2 is placed in assembled position.
  • the diameters of the openings in the guide plate 9 in which the shafts of the gear wheels and anchor are received are slightly greater than the diameter of the respective shafts accommo dated therein. Accordingly, it is a relatively easy task to place the guide plate 9 in position on the pillars 3., 4 as the upper ends of the shafts of the gear wheel and anchor are received in their respective opening in the guide plate 9.
  • Once the guide plate 9 is placed in position as aforesaid. it serves as a temporary support for the upper portions of the shafts of the gear wheels and anchor until the bridge plate 2 is placed in assembled position.
  • the base plate 1 is generally horizontally disposed and the lower ends of the shafts of the gear wheel and anchor are placed in their respective bearing or pivot supports in the base plate 1 so that said shafts are generally vertically disposed as shown in the drawing.
  • the guide plate 9 is then lowered into position wherein the openings therein receive the upper portion of the pillars 3, 4 and the upper portion of the shafts of the gear wheels and anchor.
  • the diameters of the openings in the guide plate 9 are slightly greater than the respective diameters of the shafts so that it is a relatively simple task to lower the guide plate 9 into position where it rests on the shoulders of the pillars 3,4.
  • the bridge plate 2 is lowered into positon on the upper portion of the pillars 3, 4 while the bearing means on the bridge plate 2 receive the upper ends of the shafts of the gear wheels and anchor,
  • the bridge plate 2 is in position on the pillars 3, 4 it is suitably secured by fastening means to complete the assembly.
  • the gear wheels 5, 6, 7 are rotatably and pivotally supported by the base plate l and bridge plate 2 with the guide plate 9 no longer serving as a support.
  • the guide plate 9 is retained in position on the pillars 3, 4 adjacent the bridge plate 2 and thereafter facilitates disassembly and assembly for repairs without requiring any special as sembly tools.
  • the guide plate 9 may be easily and inexpensively manufactured from a sheet of metal, plastic or other material in which the various openings may be readily punched out.
  • the plate 9 may be transparent and sufficiently flexible to permit bending of the plate so that the shafts can be registered with the openings in the plate sequentially rather than simultaneously.
  • timepiece of the pillar type which may be readily assembled and disassembled without requiring any special tools and a method of assembly which overcomes disadvantages of known prior art methods of assembly, thereby resulting in reducing manufacturing and repair costs.
  • a timepiece comprising a base plate and a bridge plate, pillars supporting said plates in fixed spaced relationship, a plurality of gear wheels having support shafts disposed between said plates, bearing means carried by said plates rotatably support ing said gear wheel shafts
  • the improvement which comprises a guide plate mounted on said pillars adjacent said bridge plate, said guide plate being of thin flexible sheet material having a thickness less than that of the bridge plate and having a plurality of openings through which end portions of the shafts of said gear wheels pass, said openings being large enough to receive the end portions of said shafts freely while small enough to guide and position said end portions of the gear wheel shafts to maintain the latter in alignment with the corresponding bearing means on the bridge plate as the latter is assembled into position on the pillars.
  • a timepiece comprising a base plate and a bridge plate, pillars supporting said plates in fixed spaced relationship, a plurality of gear wheels having support shafts disposed between said plates, bearing means carried by said plates rotatably supporting said gear wheel shafts, the improvement which comprises a guide plate mounted on said pillars adjacent said bridge plate, said guide plate having a thickness less than that of the bridge plate and having a plurality of openings through which end portions of the shafts of said gear wheels pass.
  • openings being large enough to receive the end portions of said shafts freely while small enough to guide and position said end portions of the gear wheel shafts to maintain the latter in alignment with the corresponding bearing means on the bridge plate as the latter is assembled into position on the pillars, and an anchor means having a support shaft rotatably supported by said bearing means on said base plate and bridge plate.
  • a timepiece comprising a base plate and a bridge plate, pillars supporting said plates in fixed spaced relationship, a plurality of gear wheels having support shafts disposed between said plates, bearing means carried by said plates rotatably supporting said gear wheel shafts
  • the improvement which comprises a guide plate mounted on said pillars adjacent said bridge plate, said guide plate having a thickness less than that of the bridge plate and having a plurality of openings through which end portions of the shafts of said gear wheels pass, said openings being large enough to receive the end portions of said shafts freely while small enough to guide and position said end portions of the gear wheel shafts to maintain the latter in alignment with the corresponding bearing means on the bridge plate as the latter is assembled into position on the pillars, each of said pillars having one end secured to said base plate and the other end provided with two shoulders of which one positions said guide plate and the other positions said bridge plate.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
US212611A 1970-12-28 1971-12-27 Construction to facilitate assembly of a timepiece Expired - Lifetime US3888073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970132722U JPS5045316Y1 (de) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
US3888073A true US3888073A (en) 1975-06-10

Family

ID=15088039

Family Applications (1)

Application Number Title Priority Date Filing Date
US212611A Expired - Lifetime US3888073A (en) 1970-12-28 1971-12-27 Construction to facilitate assembly of a timepiece

Country Status (6)

Country Link
US (1) US3888073A (de)
JP (1) JPS5045316Y1 (de)
CH (2) CH571243B5 (de)
DE (1) DE2165082C3 (de)
FR (1) FR2120058B1 (de)
GB (1) GB1342148A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026104A (en) * 1974-12-27 1977-05-31 Eta A.G. Ebauches-Fabrik Watch movement frame
US4090352A (en) * 1975-08-20 1978-05-23 Devhorl S.A. Reducing gear-train of an electronic watch with analog display
WO1980000380A1 (en) * 1978-08-02 1980-03-06 Nii Chasovoj Promy Reductor for electromechanical wrist watches with stepping motor and central seconds hand

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6039829Y2 (ja) * 1975-12-27 1985-11-29 セイコーエプソン株式会社 電池時計
DE10237177B4 (de) * 2002-08-14 2005-09-08 Hydrometer Gmbh Zählwerk, insbesondere für Wasserzähler, und Verfahren zu seiner Montage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434327A (en) * 1921-09-28 1922-10-31 Colomb Henry Means for securing bridges of timekeeping mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434327A (en) * 1921-09-28 1922-10-31 Colomb Henry Means for securing bridges of timekeeping mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026104A (en) * 1974-12-27 1977-05-31 Eta A.G. Ebauches-Fabrik Watch movement frame
US4090352A (en) * 1975-08-20 1978-05-23 Devhorl S.A. Reducing gear-train of an electronic watch with analog display
WO1980000380A1 (en) * 1978-08-02 1980-03-06 Nii Chasovoj Promy Reductor for electromechanical wrist watches with stepping motor and central seconds hand
DE2952977C1 (de) * 1978-08-11 1982-10-28 Naučno-issledovatel'skij institut časovoj promyšlennosti, Moskva Getriebe elektronisch-mechanischer Armbanduhren mit einem Schrittmotor und einem zentralen Sekundenzeiger
US4378957A (en) * 1978-08-11 1983-04-05 Malkin Daniel D Reduction gear of electronic wristwatch with stepping motor and sweep second hand

Also Published As

Publication number Publication date
GB1342148A (en) 1973-12-25
JPS5045316Y1 (de) 1975-12-22
DE2165082A1 (de) 1972-07-20
FR2120058B1 (de) 1975-02-07
FR2120058A1 (de) 1972-08-11
DE2165082B2 (de) 1973-12-06
DE2165082C3 (de) 1974-06-27
CH1898171A4 (de) 1975-07-31
CH571243B5 (de) 1975-12-31

Similar Documents

Publication Publication Date Title
US3888073A (en) Construction to facilitate assembly of a timepiece
JPS5386254A (en) Electronic timepiece with calendar
JPS5284184A (en) Ultraafiltration membrane combined with enzyme and method manufacturing it
DE2944747A1 (de) Uhrenzifferblatt mit zeitzyklischer mehrfachanzeige auf einer zentralachse und etagenversetztem antrieb
DE2406727A1 (de) Uhr insbesondere tisch- oder wanduhr
US3706196A (en) Consturction of thin timepiece
JPS5756687A (en) Closed compressor
CN220584812U (zh) 一种细菌结构展示教具
CN216628091U (zh) 一种带有旋转机构的智能化彩票展示箱
Jacquemin HONOURS RECORDED AT DELPHI-(D.) Grzesik Honorific Culture at Delphi in the Hellenistic and Roman Periods.(Brill Studies in Greek and Roman Epigraphy 17.) Pp. xvi+ 247, b/w & colour figs, colour ills, b/w & colour maps. Leiden and Boston: Brill, 2021. Cased,€ 118, US $142. ISBN: 978-90-04-50247-5.
GB1162252A (en) Perpetual Dial Day-and-Date-Indicator Calendar
Lion Europe's Inner Demons. An Enquiry Inspired by the Great Witch-hunt
DE20008791U1 (de) Sonnenauf-, und untergansanzeige mit auswechselbaren Kurvenscheiben in einer Armbanduhr
DE459173C (de) Vorrichtung zum Anzeigen von Abfahrtzeiten und Vorfuehren von auswechselbaren Reklameanzeigen o. dgl. an Strassenbahnmasten, Laternenpfaehlen o. dgl.
DE29911387U1 (de) Analoge Datumsanzeige für Kalenderuhren
DE1731093U (de) Elektrische tischuhr mit speicher fuer die elektrische energie.
Kincheloe THE ANTEBELLUM SOUTHERN EVANGELICAL AND STATE-SUPPORTED COLLEGES: A COMPARATIVE STUDY.
JPS5927139Y2 (ja) 時計バンド
JPS566182A (en) Watch with calendar
DE1902489U (de) Zeitmessvorrichtung mit toenender alarmeinrichtung.
DE453071C (de) Drehbare Reklamesaeule, bei welcher die Drehvorrichtung die Reklamesaeule durch Reibung mitnimmt
JPS5319069A (en) Electronic digital timepiece with perpetual calendar
Waddington Russian Architecture of the Soviet Period
Kazazis Modern Romanian. By James E. Augerot and Florin D. Popescu. Seattle and London: University of Washington Press, 1971. xiii, 329 pp. $12.00.
JPS52141249A (en) Spacer for display panel