US3232040A - Device for limiting elongation of striplike flexible members formed by linked elastic elements, particularly bracelets, etc. - Google Patents

Device for limiting elongation of striplike flexible members formed by linked elastic elements, particularly bracelets, etc. Download PDF

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Publication number
US3232040A
US3232040A US253850A US25385063A US3232040A US 3232040 A US3232040 A US 3232040A US 253850 A US253850 A US 253850A US 25385063 A US25385063 A US 25385063A US 3232040 A US3232040 A US 3232040A
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United States
Prior art keywords
elements
tubular
sleeve
series
bracelets
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
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US253850A
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English (en)
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Villa Alessandro
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Individual
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Individual
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    • 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
    • A44C5/02—Link constructions
    • A44C5/04—Link constructions extensible
    • A44C5/08—Link constructions extensible having separate links
    • 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
    • A44C5/02—Link constructions
    • A44C5/04—Link constructions extensible

Definitions

  • This invention relates to a device for limiting elongation and deformation of striplike flexible members, such as belts, bracelets, and the like, formed by linked elastic ele' ments.
  • the known bracelets are constituted by a plurality of elements, linked and combined through'resilient straps. These bracelets, practically, do not meet the usualr'equirements and do allow very small movements, while the clastic pressure of the straps is, in certain cases, considerable and is not tolerated by the user of the bracelet.
  • the spring must be of small dimension.
  • the present invention has the object to avoid the inconvenience above-mentioned, and other inconveniences, so that the resilient action of the device is of small amount,
  • the device accordingjto the invention is characterized in that, in combination with linked and elastic elements, adapt to realize the flexible member under consideration, it provides two groups of stop members mutually cooperating, one of which is a dapte d to react against thereturning action of the resilient means,whi1e thefother group constitutes stops which limit ,the"elongation and the extension of the flexible members.
  • the device con sists of a succession of tubular elements mutually cooperating, in arowone after the other, at least part of each providing stops and counterstops, conveniently spaced, which cooperate respectively with the counter-stop and tion;
  • FIGURE 2 is the perspective view of one of the elements which formthe device
  • FIGURE 3 is a view of the element shown in FIGURE 2 with the upper plate removed.
  • FIGURES 4 and 5 show, in a greater scale, vertical and longitudinal partial sections of such flexible member
  • FIGURE 7 is the partial transversal section of the bracelet.
  • the flexible member under consideration is constituted by a plurality of elements B, positioned successively in a row; in which is inserted a coil spring A, conveniently tensioned and whose ends are secured to the ends of the row or strip, formed by the element B underconsideration; joir1- ing together oneor more strips, a flexible member is obtained in the desired length, which can be varied, varying the number of elementary strips B.
  • the elements B are linked together in the manner that will be described later and surround the coil springA,
  • Each of the elements B is constituted by a tubular element or sleeve 10, of appropriatelength, in which is inserted, as described, the coil spring A.
  • Such sleeve is secured, at one of its ends, to a crown 12, provided at one of, the ends of a second tubular element 14, whose inner with the stop of the tubular elements, which precede and follow the tubular element under consideration, while in such a row of tubular elements is inserted at least a coil spring, whose respective'ends are secured to the end elements of such a row of tubular elements.
  • the tubular elements pro-- vide a transversal section preferably quadrilateral and the i adjacent edges of such tubular elements present a mixby press-forming or with metallic sheet, in order to obtain shaped straps which, conveniently folded, form the tubular element presenting, at oneof its ends, a longitudinal size is made in such a way thatin it can slide the sleeve it of the element B, adjacent to that under consideration.
  • the tubular element 14 has a prismatic shape and flanking the crown 12, provides openings16, conveniently sized,
  • such sleeves provide, in diametrically opposed positions, two guiding plane surfaces 20, apt to engage with the inner surfaces of two of the opposite walls of the box-like pieces 14, thus preventing the mutual rotation of said elements B.
  • the guiding plane surfaces are the edges of longitudinally extending diametrically opposed slots cut in the tubular element or sleeve 1% and extending from the point or crown 12 of the element B, to the distal end of the sleeve.
  • FIGURE 2 and the left-most element in See FIGURE 3.
  • These slots are spaced degrees from the lugs 13.
  • the elements B are then slipped on the spring A and linked together to form a row or strip of the desired length and such elements are disposed in a row, one after the other, so that the edges of the ends of such pieces, for
  • such element can be realized so that one of the walls of the box-like piece 14, by way of example, the wall 22 is folded back and secured by soldering or by seam folding. These elements are mutually successively engaged, as the elements are slipped on the spring A, by inse'rting into each one of the box-like pieces the slotted end of the sleeve 10 of the element following the one under consideration, so that the lugs 18 of such sleeve accommodate in the openings 16 such box-like pieces.
  • the slots in the sleeve 10, and the resiliency of the metal of which the sleeve is made, allow the sides of the sleeve to yield enough to permit the lugs 18 to slide past the inner sides of the box-like pieces 14 of the next element B and snap into the opening 16.
  • the 'row or strip formed by the telescopical elements B comes out as a flexible element, owing to its structure, and is resilient, since on the ends of such strip are fastened the ends of spring A, whose action keeps engaged in a row the box-like pieces 14.
  • the telescopic elements B slide axially and mutually, but such sliding is restricted by the lugs 13 which are retained by the edges of the side walls of the box-like pieces under consideration.
  • the element B could be obtained by blanking in a single piece of a metallic sheet, folding then the sheared element obtained, so to have the box-like piece 14 and the sleeve 10.
  • the lugs 13, in this case, are obtained by providing at the ends one or more wings or fins, constituting the sleeve 10 with extensions that, folded at right angle, form the stop-lugs 18, apt to engage with the bottom wall of the openings 16.
  • Such flexible member can be easily realized, taking into consideration the structure of the present device and particularly of the elements B.
  • the elements B could be constituted by box-like pieces 14 of desired width (that is of double, triple width, etc. of the elementary width), and whose wall 12 provides two or more sleeves It ⁇ with the stop-lugs 18.
  • the linkage of these elements of width double, triple than that shown in FIGURE 2 is realized in the way considered above.
  • the flexible member under consideration could provide a mixed structure formed by elements B of double width, triple etc., conveniently alternated with simple elements, so to satisfy requisite of use or of fashion.
  • a series of tubular elements each of said tubular elements comprising a first tubular part of generally rectangular cross sections the ends of which are adapted to abut corresponding ends of adjacent elements, an inwardly directed tab in each said tubular element, a yieldable split sleeve fixed in one end of each tubular elements and projecting therefrom for insertion into the adjacent tubular element, and an outwardly directed lug on the distal end of the split sleeve adapted with deflection of the sleeve to pass said tab and thereafter to cooperate with said inwardly directed tab to limit separating movement of said tubular elements.
  • An expansible chain according to claim 1 comprising a plurality of parallelly arranged series of tubular elements, the tubular elements of one series being secured to corresponding tubular elements of a next adjacent series of elements.

Landscapes

  • Mutual Connection Of Rods And Tubes (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
US253850A 1962-02-16 1963-01-25 Device for limiting elongation of striplike flexible members formed by linked elastic elements, particularly bracelets, etc. Expired - Lifetime US3232040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT314462 1962-02-16

Publications (1)

Publication Number Publication Date
US3232040A true US3232040A (en) 1966-02-01

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Application Number Title Priority Date Filing Date
US253850A Expired - Lifetime US3232040A (en) 1962-02-16 1963-01-25 Device for limiting elongation of striplike flexible members formed by linked elastic elements, particularly bracelets, etc.

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US (1) US3232040A (it)
CH (1) CH395612A (it)
GB (1) GB1019389A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD255436S (en) 1978-03-17 1980-06-17 Max Bogner Finger ring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116585A1 (de) * 1981-04-27 1982-11-11 Tesch AG, 6373 Ennetbürgen "gliederband als schmuck- oder uhrarmband"

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520186A (en) * 1924-03-20 1924-12-23 Kestenman Brothers Mfg Co Expansible metal band
FR925351A (fr) * 1946-04-09 1947-09-02 Bimeca Bracelet ou chaîne métallique extensible
DE835080C (de) * 1949-11-27 1952-03-27 Franz Ochs Ziehbandkoerper fuer Schmuck- und Gebrauchszwecke
FR1087411A (fr) * 1953-07-28 1955-02-23 Chaîne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520186A (en) * 1924-03-20 1924-12-23 Kestenman Brothers Mfg Co Expansible metal band
FR925351A (fr) * 1946-04-09 1947-09-02 Bimeca Bracelet ou chaîne métallique extensible
DE835080C (de) * 1949-11-27 1952-03-27 Franz Ochs Ziehbandkoerper fuer Schmuck- und Gebrauchszwecke
FR1087411A (fr) * 1953-07-28 1955-02-23 Chaîne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD255436S (en) 1978-03-17 1980-06-17 Max Bogner Finger ring

Also Published As

Publication number Publication date
CH395612A (it) 1965-07-15
GB1019389A (en) 1966-02-02

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