US3820319A - Expansible bracelet construction - Google Patents
Expansible bracelet construction Download PDFInfo
- Publication number
- US3820319A US3820319A US00242314A US24231472A US3820319A US 3820319 A US3820319 A US 3820319A US 00242314 A US00242314 A US 00242314A US 24231472 A US24231472 A US 24231472A US 3820319 A US3820319 A US 3820319A
- Authority
- US
- United States
- Prior art keywords
- link
- links
- row
- wall
- extending
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000000926 separation method Methods 0.000 claims description 3
- 210000000707 wrist Anatomy 0.000 abstract 1
- 230000008602 contraction Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
Images
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
- A44C5/02—Link constructions
- A44C5/04—Link constructions extensible
- A44C5/08—Link constructions extensible having separate links
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
- F16G13/14—Hauling- or hoisting-chains so called ornamental chains built up from readily-separable links
Definitions
- 2,689,450 attempts to overcome this problem by interlocking the ends of the springs with offsets or shoulders provided on the inner surface of the U-shaped connectors, but this type of arrangement creates cost problems due to the specific configuration of the U-shaped members and also because this arrangement does not lend itself to assembly by automatic machinery.
- Another object is the provision of a bracelet of the character described which readily lends itself to assembly by automatic machinery.
- a further object is the provision of a bracelet of the character described that is economically feasible to manufacture, but which is nevertheless durable and effective in use.
- FIG. 1 is a fragmentary top perspective view of an expansible bracelet construction embodying the present invention
- FIG. 2 is an end view thereof
- FIG. 3 is an end view showing the bracelet in expanded position
- FIG. 4 is a section taken on line 44 of FIG. 2 and;
- FIG. 5 is an exploded perspective view showing the various components that make up a pair of top and bottom links.
- an expansible bracelet construction 10 comprising a row of top links 12 and a row of bottom links 14, said links being of elongated tubular formation and extending transversely across the longitudinal axis of the bracelet 10.
- the top links 12, which may be constructed of any suitable metallic material, comprise a top outer wall 16 which may be suitably ornamented on its outer surface as illustrated and depending side walls 18 which are turned inwardly so as to form bottom wall 20.
- the bottom links 14, which are also constructed of any suitable metallic material, comprise an outer bottom wall 22 having upwardly extending side walls 24 having inwardly extending portions 26 which define the inner top wall of the links 14. It is important to note that the portions 26 define a centrally disposed opening 28, the purpose of which will hereinafter become apparent.
- Each link 12 and 14 has provided therein an elongated leaf spring 30 having bent-in portions 32 and inwardly extending portions 34 which terminates at laterally extending folds 36, which folds are interconnected by a shallow concave portion 38.
- the springs 30 are dimensioned so that they extend substantially from end to end within their respective links and also substantially from side to side with respect thereto.
- the springs 30 are positioned within their respective links so that the fold lines 40 adjacent the opposite ends of the spring resiliently bear against the outer wall of the link, while the fold lines 36 resiliently bear against the inner wall of the link.
- a pair of U-shaped connecting members 42 are slidably inserted at the ends of each link and function to interconnect each link with the adjacent overlapping links of the other row, all in a well-known manner as described and illustrated in the aforesaid Stiegele U.S. Pat. No. 2,689,450.
- the legs 44 of the connector members 42 are positioned between fold lines 40 and the adjacent outer wall of the link; whereupon when the links are stretched so as to expand the bracelet, as illustrated in FIG. 3, the connector members 42 will rotate or pivot so as to cause the leg portions 44 to compress the ends of the springs 30. It will therefore be seen that when the stretching force on the bracelet is released, the springs 30 will resiliently urge the connector members 42 to the normal position illustrated in FIG. 2, wherein the bracelet is its contracted position.
- the springs 30 are shown in both the top and bottom links of my construction, it has been found that the bracelet will function in the aforesaid manner even if springs are located only in one of the rows of links; although in such an event the resilient force normally biasing the bracelet to its contracted position will be proportionately reduced.
- the top outer wall 16 of top links 12 are provided with extending portions 46 at opposite extremities thereof, which portions are bent inwardly to overlie the bight portion of connector elements 42, as illustrated.
- the centrally positioned opening 28 in the top inner wall of bottom links 14 is dimensioned so as to snugly receive therein the spaced fold lines 36 of the springs 30 positioned in the bottom links 14.
- the fold lines 36 actually function as spaced projections which extend upwardly and which engage opposite extremities of the opening 28 so as to position the spring 30 with respect to the link 14 in such a way as to prevent longitudinal movement or shifting of the spring within its link. This is highly advantageous, because in practice it has been found that repeated flexing of the bracelet has a tendency to cause the spring to shift longitudinally within its link, thus adversely affecting the smoothness and uniformity of the spring action.
- top links 12 may also be provided with central openings similar to the openings 28 in bottom links 14, in order to receive its spring members in the same manner. In the embodiment shown, however, where the top links are closed at their ends by the bent-over portions 46, it is not essential that the spring interlock with the link in the manner that the springs of the bottom links 14 do.
- the fold lines or projections 36 do not extend upwardly beyond the top surface of the portions 26.
- the projections or fold lines 36 terminate in a plane substantially flush with the outer surface of the wall portions 26.
- an expansible bracelet construction of the type comprising top and bottom rows of overlapping staggered links with each link extending in a direction generally transverse to the length of the bracelet, and having means interconnecting the links of each row with the links of the other row so as to permit separation of adjacent side-by-side links with respect to each other when the bracelet is stretched longitudinally from a contracted to an expanded position, said interconnecting means extending from a link of one row to an adjacent link of the other row and cooperating with resilient means in at least one row of said links for normally biasing the bracelet toward its contracted position, said resilient means comprising a leaf spring in each link of said row extending substantially from one end of the link to the other and substantially thereacross, each link in said top row comprising a top outer wall, a bottom inner wall, and a pair of opposite side walls, each link in said bottom row comprising a bottom outer wall, a top inner wall, and a pair of opposite side walls, the said inner walls of one of said rows of links having an opening therein located approximately halfway between the ends of
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00242314A US3820319A (en) | 1972-04-10 | 1972-04-10 | Expansible bracelet construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00242314A US3820319A (en) | 1972-04-10 | 1972-04-10 | Expansible bracelet construction |
Publications (1)
Publication Number | Publication Date |
---|---|
US3820319A true US3820319A (en) | 1974-06-28 |
Family
ID=22914285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00242314A Expired - Lifetime US3820319A (en) | 1972-04-10 | 1972-04-10 | Expansible bracelet construction |
Country Status (1)
Country | Link |
---|---|
US (1) | US3820319A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510746A (en) * | 1982-09-01 | 1985-04-16 | Rodi & Wienenberger | Flexible band |
US6442970B1 (en) * | 1999-02-13 | 2002-09-03 | Rowi Rodi & Wienenberger Gmbh | Expandable bracelet, in particular watch strap |
US20060124674A1 (en) * | 2004-12-13 | 2006-06-15 | Chan Che W | Watch band and the links used thereof |
-
1972
- 1972-04-10 US US00242314A patent/US3820319A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510746A (en) * | 1982-09-01 | 1985-04-16 | Rodi & Wienenberger | Flexible band |
US6442970B1 (en) * | 1999-02-13 | 2002-09-03 | Rowi Rodi & Wienenberger Gmbh | Expandable bracelet, in particular watch strap |
US20060124674A1 (en) * | 2004-12-13 | 2006-06-15 | Chan Che W | Watch band and the links used thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GENAL STRAP, INC. D.B.A. VOGUE WATCH STRAP CREATIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GARSTAN CORPORATION A RI CORP.;REEL/FRAME:004162/0046 Effective date: 19830720 Owner name: GENAL STRAP, INC. D.B.A. VOGUE WATCH STRAP CREATIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GARSTAN CORPORATION A RI CORP.;REEL/FRAME:004162/0046 Effective date: 19830720 |
|
AS | Assignment |
Owner name: HARDIN MARINE, A CORP. OF CA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:IMO DELAVAL INC.;REEL/FRAME:004742/0610 Effective date: 19870729 |