US3574903A - Fastening device for a wristwatch band and the like - Google Patents

Fastening device for a wristwatch band and the like Download PDF

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Publication number
US3574903A
US3574903A US794529*A US3574903DA US3574903A US 3574903 A US3574903 A US 3574903A US 3574903D A US3574903D A US 3574903DA US 3574903 A US3574903 A US 3574903A
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US
United States
Prior art keywords
plate member
band
band section
bent
upper 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
US794529*A
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English (en)
Inventor
Kouzo Namiki
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.)
TONAN KINZOKU KOGYO KK
Original Assignee
TONAN KINZOKU KOGYO KK
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Filing date
Publication date
Application filed by TONAN KINZOKU KOGYO KK filed Critical TONAN KINZOKU KOGYO KK
Application granted granted Critical
Publication of US3574903A publication Critical patent/US3574903A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
    • A44C5/2076—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain abutting each other or sliding in the main plane or a plane parallel to the main plane of these two ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/47—Strap-end-attaching devices
    • Y10T24/4782—Watch strap

Definitions

  • one half-section of the band is provided with a plurality of keyhole-shaped engaging holes and the other half-band section is provided with a pin having a reduced diameter neck portion projecting on one side thereof.
  • the band sections are to be connected to each other the neck portion of the above-mentioned pin is first inserted in a selected one of the keyhole-shaped engaging holes at the largest dimension portion of the selected hole and then the pin neck portion is slid in the hole from the largest dimension portion to the smallest dimension portion of the hole.
  • this'arrangement would not always ensure a positive fastening and the band sections would very often be disconnected from one another in use.
  • the present invention relates to a fastening device for a wristwatch band and the'like and more particularly, to a fastening device suitably used in connection with a wristwatch band and the like which comprises a pair ofsimilar arcuate band sections having a plurality of equally spaced holes in the longitudinal direction thereof.
  • One object of the present invention is to provide a fastening device for a wristwatch band and the like which comprises a pair of similar arcuate band sections one of which has a plurality of equally spaced holes in the longitudinal direction, said fastening device comprising an arcuate upper plate member secured to said one band section having no hole and having a substantially inverted.
  • a fastening device for use in connection with a wristwatch band and the like which band comprises a pair of partially overlapping rigid similar first and second arcuate band sections, the latter having a plurality of equally spaced holes in the longitudinal direction thereof and said first band section having a slit adjacent to one end, said fastening device comprising an upper rigid arcuate plate member of a substantially inverted U-shape adapted to be secured tosaid first band section and having a lip bent downwardly at one end engaging in said slit in the first band section and another lip bent downwardly and then inwardly at the other end in a slight spaced relation to the inner surface of the upper plate member, a similarly arcuate lower rigid plate member unitarily secured to said upper plate member in a spaced relation to the inner surface of the latter and having guide lips at the opposite ends over which the second hand section may slide, an elongated leaf spring pawl member having one end received in the space defined by said inner surface of the upper plate member and the downwardly and
  • a fastening device for use in connection with a wristwatch band and the like which band comprises a pair of partially overlapping rigid similar first and second arcuate band sections, the latter having aplurality of equally spaced holes in j the longitudinal direction thereof and said first band section having a slit adjacent to one end
  • said fastening device comprising an upper rigid arcuate plate member of a substantially inverted U-shape adapted to be secured to said first band section and having a lip bent downwardly at one end engaging in said slit in the first band section and another lip bent downwardly and then inwardly at the other end in a slight spaced relation to the inner surface of the upper plate member, a similarly arcuate lower rigid plate member unitarily secured to said upper plate member in a spaced relation to the inner surface of the latter and having guide lips at the opposite ends over which the second band section may slide, an elongated leaf spring pawl member having one end received in the space defined by the inner surface of the upper plate member and the
  • FIG. 2 is a fragmentary longitudinally sectional view on an enlarged scale taken along the longitudinal axis of said fastening device;
  • FIG. 3 is a fragmentary perspective view of the main body of said fastening device on an enlarged scale
  • FIG. 4 is a fragmentary perspective view of a leaf spring type stopper member
  • FIG. 5 is a fragmentary longitudinally sectional view of a modified fastening device on an enlarged scale taken along the longitudinal axis of said modified device.
  • FIGS. I to 4 inclusive a preferred embodiment of band fastening devices according to the present invention is illustrated as being used in connection with a wristwatch band unit which comprises a pair of sheet metal or any suitable rigid material first and second band sections 1 and l' which are substantially the same in construction each having an arcuate shape of the same curvature.
  • the band sections 1 and l' are adapted to be disposed in a partially overlapping relation with each other when the band unit is inits operative position with the first section 1 superimposed on the second section 1.
  • the second hand section 1 is provided with a plurality of equally spaced elongated holes 2 in the longitudinal direction with longitudinal axis disposed normal to the longitudinal axis of the band unit.
  • the first band section 1 is provided at a point adjacent to one end with an elongated slit 3 extending I transversely of the associated band section for the purpose to be described hereinbelow.
  • the outer ends of the two band sections 1 and l are adapted to be connected to a wristwatch 20 in the conventional manner, for example.
  • the novel band fastening device is generally shown with reference numeral and generally comprises an upper plate members 11 and 12 and the upper plate member 11 is secured to the band section 1 in the manner as described hereinbelow and has opposite sidewalls 11' which are bent at substantially right angles with respect to the top wall of the plate member 11 so as to embrace the first section 1 on both the side edges of the band section.
  • Each of the upper plate member sidewalls 11' is provided at the opposite lower edges with lips (not shown) which are bent substantially at right angles with respect to the respectively associated sidewalls 11 and substantially in parallel to the top wall of the upper plate member 11.
  • the top wall and the lower edges of the sidewalls ll of the upper plate member 11 have a curvature substantially corresponding to the curvature of the band sections 1 and l for the purpose to be described hereinbelow.
  • the lower plate member 12 of the fastening device 10 comprises a simple plate member which also has a curvature substantially corresponding to that of the band sections 1 and l and is provided with lips at four corners (only two lips are shown in H0. 3) which serve as guides along which the second band section 1' may slide in the manner as will be described hereinbelow.
  • the abovementioned lips at the lower edges of the sidewalls ll of the upper plate member ll are caulked against the bottom surface of the lower plate member 12 so as to provide a boxshaped construction having a rectangular cross section with the opposite ends 13 and 13 open.
  • One end edge of the upper plate member 11 of the fastening device 10 is inwardly bent in a spaced relation to the inner surface of the top wall of the upper plate member 11 so as to form a lip or pawl member seat 11" in cooperation with the plate member inner surface.
  • the other end edge of the upper plate member 11 of the fastening device 10 is formed with a narrow lip (not shown) bent inwardly and inserted through the slit 3 in the first band section 1 so that the upper plate 11 may be secured to the band section 1.
  • a pawl member 14 in the form of a substantially T-shape leaf spring is received at its laterally extending base 15 in the pawl seat ll.
  • the pawl member 14 has a shank 16 extending forwardly from the base 15 at right angles with respect to the latter and the shank tapers toward the free end where the pawl member 14 is bent into a substantially V-shape.
  • the apex 17 of the V-shape free end of 172 pawl member 14 is adapted to be received in a selected one of the plural elongated holes 2' in the second band section 1 and the extreme end 18 or the outer leg of the V-shape of the pawl member 14 extends forwardly and horizontally to engage and hold the lower end of a finger-operated elastic stopper member 19 in a substantially U-shape leaf spring and and upper end of the stopper member which projects upwardly through the slit 3 of the first band section 1 is adapted to be operated by a human fingertip in the manner as mentioned hereinbelow.
  • the upwardly projecting end of the stopper member 19 normally abuts against the upper surface of the top wall of the upper plate member 11 to urge the apex 17 of the V-shape free end of the pawl member 14 into a selected one of the holes 2 in the band section 1 whereby the two band sections 1 and I may be firmly held together with each other.
  • the fastening device 10 After the user has worn the band to which the wristwatch is connected on one of his wrists in the usual manner, he inserts the end of the second band section 1 remote from the end to which the watch is connected into the fastening device 10 at the open end 13 and slides the band section end along the inner surface of the lower plate member 12 while upwardly pushing the projecting upper end of the stopper member 19 to a substantially upright position away from the top wall of the upper plate member 11 by his one fingertip until the circular configuration defined by the two band sections 1 and 1 will substantially conform to the contour of the wrist whereupon he releases the projecting upper end of the stopper member 19 to allow the projecting end to return to the normal position where the upper end of the stopper member abuts against the top wall of the upper plate member 11.
  • the pushing-up force which is now applied on the undersurface of the outer leg of the V-shape free end of the pawl member 14 by the lower end of the stopper member 19 is also released thereby to allow the apex 17 of the V-shape free end of the pawl member 14 to engage in one selected or the nearest hole 2 of the second band section 1 and as the result, the band can be positively held on the users wrist.
  • the user may initially connect the two band sections together in a partially overlapping relation to such a degree that the circular configuration defined by the two band sections may be substantially larger than the contour of the wrist so that he may easily wear the band on the wrist.
  • the modified fastening device 10 is substantially the same as the embodiment of FIGS. 1 to 4 inclusive except for the construction and arrangement of the pawl member and stopper member. Therefore, the parts of the modified embodiment which are identical with those of the first embodiment are shown with the same reference numerals and explanation will be made on only the parts which are peculiar to the modified embodiment and the parts which are related to the peculiar parts.
  • a pawl member 14' in the form of a substantially T-shape leaf spring is received at its laterally extending base 15 in the pawl seat 11 which is defined by the inwardly-bent one edge of the upper plate member 11 and the inner surface of the top wall of the plate member which is spaced from the bent edge.
  • the pawl member 15. has a shank 16 extending forwardly from the base 15' at right angles with respect to the base and terminating short of the slit 3 in the first band section 1.
  • a finger-operated elastic stopper member 19' in the form of a leaf spring is provided with the upper end portion projecting upwardly through the slit 3 formed in the first band section 1 as in the case of the first embodiment described herein above.
  • the other or lower end portion of the stopper member 19' is bent into a substantially V-shape and the extreme end l9'a of the stopper member lower end portion is adapted to normally abut against and held by the lower surface of the fore or free end of the pawl member 14.
  • the apex l9b of the V-shape lower end portion is adapted to be inserted in a selected one of the plural holes 2 in the second band section 1.
  • a fastening device for use in connection with a wristwatch band and the like which band comprises a pair of partially overlapping rigid similar first and second arcuate band sections, the latter having a plurality of equally spaced holes in the longitudinal direction thereof and said first band section having a slit adjacent to one end, said fastening device comprising an upper rigid arcuate plate member of a substantially inverted U-shape adapted to be secured to said first band section and having a lip bent downwardly at one end engaging in said slit in the first band section and another lip bent downwardly and then inwardly at the other end in a slight spaced relation to the inner surface of the upper plate member, a similarly arcuate lower rigid plate member unitarily secured to said upper plate member in a spaced relation to the inner surface of the latter and having guide lips at the opposite ends over which the second band section may slide, an elongated leaf spring pawl member having one end received in the space defined by said inner surface of the upper plate member and the downwardly and inwardly bent lip at the other
  • said upper plate member further has the opposite sidewalls bent substantially at right angles with respect to the top wall thereof and each of said sidewalls is provided at the lower edge with extensions bent substantially at right angles with respect to the associated sidewall and in parallel to said top wall of the associated plate member, said extensions being caulked against the bottom surface of said lower plate member thereby to form a box shape unit having a substantially rectangular cross section opening between the upper and lower plate members through which said second band section may pass slidably.
  • a fastening device for use in connection with a wristwatch band and the like which band comprises a pair of partially overlapping rigid similar first and second arcuate band sections, the latter having a plurality of equally spaced holes in the longitudinal direction thereof and said first band section having a slit adjacent to one end, said fastening device comprising an upper rigid arcuate plate member of a substantially inverted U-shape adapted to be secured to said first band section and having a lip bent downwardly at one end engaging in said slit in the first band section and another lip bent downwardly and then inwardly at the other end in a slight spaced relation to the inner surface of the upper plate member, a similarly arcuate lower rigid plate member unitarily secured to said up er plate membcr in a s aced relation to the inner surface 0 the latter and having gui e lips at the opposite ends over which the second band section may slide, an elongated leaf spring pawl member having one end received in the space defined by said inner surface of the upper plate member and the

Landscapes

  • Clamps And Clips (AREA)
  • Buckles (AREA)
US794529*A 1968-02-05 1969-01-28 Fastening device for a wristwatch band and the like Expired - Lifetime US3574903A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP739968 1968-02-05

Publications (1)

Publication Number Publication Date
US3574903A true US3574903A (en) 1971-04-13

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ID=11664803

Family Applications (1)

Application Number Title Priority Date Filing Date
US794529*A Expired - Lifetime US3574903A (en) 1968-02-05 1969-01-28 Fastening device for a wristwatch band and the like

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US (1) US3574903A (enrdf_load_stackoverflow)
CH (1) CH483814A (enrdf_load_stackoverflow)
DE (1) DE1905120A1 (enrdf_load_stackoverflow)
FR (1) FR2001322A1 (enrdf_load_stackoverflow)
GB (1) GB1264141A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296532A (en) * 1980-03-21 1981-10-27 Timex Corporation Clasp for watch strap
US4382318A (en) * 1980-05-13 1983-05-10 Yoshimi Mfg., Co., Ltd. Buckles
US6799436B1 (en) * 2002-05-24 2004-10-05 Leon Minassian Adjustable and linkable jewelry device
USD638327S1 (en) * 2011-01-04 2011-05-24 Nike, Inc. Watch
USD643772S1 (en) * 2010-12-29 2011-08-23 Worldwide Watch Company Limited Watch adaptor link

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023240A (en) * 1976-05-21 1977-05-17 Textron, Inc. Spring loaded buckles
FR2355472A1 (fr) * 1976-06-21 1978-01-20 Poinard Jean Dispositif de solidarisation de deux elements dont l'un au moins est solidaire d'une sangle
EP0055241A1 (de) * 1980-12-18 1982-06-30 Hermann Hirsch Leder- und Kunststoffwarenfabrik Schliesse
EP0081616A1 (fr) * 1981-10-14 1983-06-22 Montres Rado S.A. Fermoir d'un bracelet de montre

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422507A (en) * 1966-10-13 1969-01-21 Hideo Ikeda Band provided with a buckle for loose and tight fastening
US3425104A (en) * 1967-04-21 1969-02-04 Mochizuki Mfg Co Ltd Band fixing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422507A (en) * 1966-10-13 1969-01-21 Hideo Ikeda Band provided with a buckle for loose and tight fastening
US3425104A (en) * 1967-04-21 1969-02-04 Mochizuki Mfg Co Ltd Band fixing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296532A (en) * 1980-03-21 1981-10-27 Timex Corporation Clasp for watch strap
US4382318A (en) * 1980-05-13 1983-05-10 Yoshimi Mfg., Co., Ltd. Buckles
US6799436B1 (en) * 2002-05-24 2004-10-05 Leon Minassian Adjustable and linkable jewelry device
USD643772S1 (en) * 2010-12-29 2011-08-23 Worldwide Watch Company Limited Watch adaptor link
USD638327S1 (en) * 2011-01-04 2011-05-24 Nike, Inc. Watch

Also Published As

Publication number Publication date
GB1264141A (enrdf_load_stackoverflow) 1972-02-16
DE1905120A1 (de) 1969-08-28
FR2001322A1 (enrdf_load_stackoverflow) 1969-09-26
CH483814A (de) 1970-01-15

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