WO1997049309A1 - Folding fastening system for a bracelet and bracelet with this fastening system - Google Patents
Folding fastening system for a bracelet and bracelet with this fastening system Download PDFInfo
- Publication number
- WO1997049309A1 WO1997049309A1 PCT/CH1997/000249 CH9700249W WO9749309A1 WO 1997049309 A1 WO1997049309 A1 WO 1997049309A1 CH 9700249 W CH9700249 W CH 9700249W WO 9749309 A1 WO9749309 A1 WO 9749309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bracelet
- over
- tab
- fastening element
- closure
- Prior art date
Links
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
- A44C5/22—Fasteners for straps, chains or the like for closed straps
- A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
Definitions
- the invention relates to a folding clasp according to patent claim 1 and a bracelet according to patent claim 12.
- Fold-over clasps are used especially for watch straps. They are also known as folds or z-closures.
- the fold-over closure with the bracelet ends attached to it forms a so-called closed bracelet.
- the fold-over fastener is opened, only the circumference of the bracelet is enlarged such that it can be slipped out by hand. The bracelet is not separated.
- a flap closure for a closed watch band is known from CH-A 664 270.
- the known flap closure has two flap parts that can be folded up and over one another and are connected to one another via a swivel joint. At one end of the one strap part, one end of the bracelet is held on a holding axis. One end of the other has a perforated bracelet part is attached to a plate by means of a screw closure. The plate is pivotable at the end of the second bracket part on the swivel joint opposite end arranged.
- a fold-over closure which is designed differently from CH-A 664 270 and CH-A 685 972 is known from US Pat. No. 4,545,095.
- the second, of the two flap parts that can be folded up and on top of one another is designed as a square tube into which the end of the bracelet carrying the perforation can be inserted.
- the square tube has perforations with a screw thread that are arranged to match the perforation.
- the end of the bracelet is inserted in such a way that perforation and openings coincide; then screws are screwed into the openings through the perforation hole in question.
- the object of the invention is to avoid the above-mentioned disadvantage and thus to create a deflection closure in which the bracelet wearer himself can change the circumference of the bracelet without using tools and can replace the bracelet parts themselves.
- Each pin can also be provided with a head to prevent it from slipping out.
- a safety flap is provided, which can be folded in a self-clamping manner via the two ends of the flap parts of the lock that face away from the swivel joint.
- the securing flap and the part over which it is folded are designed with a free space in such a way that the bracelet wearer can easily engage with one of his fingernails.
- 1 is a plan view of a folding clasp without arm band parts
- FIG. 2 shows a side view of the flap closure shown in FIG. 1, without bracelet parts
- Fig. 3 is a plan view analogous to Figure 1, but with the
- FIG. 4 shows a side view of FIG. 2, but with the bracelet parts
- Fig. 5 is a plan view of the in the fastener of
- Fig. 6 is a side view of the tab part of the fold-over closure used on the left in Figs. 1 to 4 in an enlarged view and
- FIG. 7 shows a plan view of the tab part shown in FIG. 6.
- the flap closure 1 shown in FIGS. 1 and 2 without bracelet parts 3a and 3b and the flap closure 1 shown in the corresponding FIGS. 3 and 4 with bracelet parts 3a and 3b can be used for flexible bracelet parts 3a and 3b, in particular watch strap parts.
- One end of the bracelet part 3a has an equally spaced perforation 4 which runs along the middle of the band end.
- the deflection closure 1 has two flap parts 7a and 7b which can be folded together and folded over one another by a first swivel joint 5. Both tab parts 7a and 7b are designed such that they rest on one another almost without a gap in the closed state.
- two pins 9a and 9b are inserted in such a way that their heads 10a and 10b protrude from the tab part side 11, which, in the state in which the arm is attached, points toward the top of the arm.
- the pins 9a and 9b and their heads 10a and 10b are designed in such a way that they can be pressed manually into the corresponding perforation 4 without any tools.
- the end of the bracelet part 3a is guided.
- the corresponding holes in the perforation 4 are pressed manually into the two pins 9a and 9b. Since the pins point towards the top of the arm, it is impossible for the perforated bracelet part to slip out.
- a The use of two pins 9a and 9b ensures good guidance of the bracelet end even with the bracelet part 3a greatly shortened, ie with the bracelet part end projecting far beyond the pins 9a and 9b.
- the second strap part 3b has at its end facing away from the swivel joint 5 a fastening element 15 held with a further swivel joint 13 for the end of the bracelet part 3b which does not have perforation 4.
- the fastening element 15 is designed as a U-shaped channel.
- the groove width is a tolerance larger than the width of each of the tab parts 7a and 7b.
- FIG. 2 it has on its left side a nose 17 described below and a holding axis 19 which can be inserted through the bracelet end loop of the bracelet part 3b.
- a locking element 21 is arranged for the securing flap 23 described below. Only the locking element 21 is shown in Figure 5. It is designed like an axis. It has a tubular middle part 25, in each of which a resiliently held pin 26a and 26b which is displaceable along the side is arranged on both sides.
- Each pin 26a and 26b has a head 27a and 27b which is separated from the rest of the pin part 26a and 26b by an annular projection 29a and 29b.
- Each head 27a or 27b is seated in an opening 30a or 30b in the respective lateral leg 31a or 31b of the fastening element 15 in a clearance fit.
- Each stop 29a and 29b is resiliently pressed on the inside of the respective leg 31a or 31b and prevents the pin 26a or 26b from being pushed through.
- a series of pairs of holes 33a to 33d is further arranged in the lateral legs 31a and 31b, each of which allows the holding axis 19 to be inserted at different distances from the pivot axis 13. Depending on the position of the holding axis 19, there is a different bracelet circumference.
- the pairs of holes 33a to 33d serve to fine-tune the circumference of the bracelet. Instead of a regular distance, different distances can also be selected. However, this further setting option should not be confused with the circumferential setting via the bracelet perforation.
- the fastening element 15 has a recess 35 traversing its outside guer as surface profiling, which is stamped with an additional recess 36.
- the recess 35 receives the U-shaped bracket 37 of the securing flap 23 described below in such a way that the bracket surface and the remaining surface parts of the fastening element 15 result in an almost uniform surface profile.
- the additional recess 36 creates a free space in which the fingernail can engage in order to open the securing flap 23.
- the tab parts 7a and 7b are curved to approximate the arm surface curvature in the area of the wrist.
- the tab part 7a is thus concave to the arm surface and the tab part 7b is convex.
- the tongue part 7a has an inner region 39a which is pressed down slightly, against the arm surface, and into which the two pins 9a and 9b are pressed, pointing towards the arm surface.
- the tab part 7b has an analog region 39b. In the folded state, the slightly protruding area 39b lies in the rear trough of the area 39a.
- the region 39b also has two press-in depressions 40a and 40b.
- the two troughs 40a and 40b are arranged and designed in such a way that they can accommodate the press-in points 41a and 41b of the pins 9a and 9b in the folded state of the flap closure 1 in such a way that the two tab parts 7a and 7b fit one another, almost without spacing .
- the tab part 7a has a lateral bulge 43 with a height which corresponds approximately to the thickness of the tab part 7b. In the folded state, the tab part 7b is thus embedded in the tab part 7a, which on the one hand results in a beautiful appearance and on the other hand the Dimensional stability serves.
- a resilient tongue 45 is arranged at the end of the tab part 7a opposite the pivot axis 5, which can be seen in particular in the enlarged illustration of a side view of the tab part 7a in FIG.
- the tongue 45 has an upper part 46 which is bent like a clamp and which, when the tab parts 7a and 7b are folded, engages with a clamp on the end 47 of the tab part 7b opposite the swivel joint 5.
- the tongue 45 and the tab part 7a are formed in one piece.
- the end of the tab part 7a adjacent to the tongue 45 is designed as a pull-through loop 49 for the perforated bracelet part 3a.
- the pull-through loop 49 is integrally formed on the tab part 7a in a manner analogous to the tongue 45.
- the transverse web 51 of the pull-through loop 49 is designed to be dimensionally stable through a groove-shaped indentation 52.
- the edges of the pull-through loop 49 opposite the transverse web 51 have lateral entry aids 53a and 53b for the bracelet part 3a to be inserted.
- a pair of bearing eyelets 55 is arranged approximately above the inlet aids 53a and 53b for a pivot axis 54 of the securing flap 23, only one of the two eyelets 55 being visible in FIG. 6.
- FIG. 7 shows a top view of the part of the swivel joint 5 without the swivel axis bolt in the right end region of the bracket part 7a.
- the securing flap 23 which is in each case on the left-hand side of the figure in FIGS. 1 to 4, is designed as a U-shaped bracket 37 and can be pivoted with a right and left-hand side flange 57a and 57b on the pivot bearing 59 with the bearing eyes 55 held.
- an opening 60a and 60b is formed approximately at the height of the bracket 37 for the engagement of the respective head 27a and 27b of the latching element 21.
- the bow 37 is slightly bent outwards in order to form sufficient space with the recess 36 in the fastening element when the fold-over closure is folded.
- the holding axis 19, which is designed analogously to the latching element 21 (only the length of the head is somewhat reduced), is inserted into one of the pairs of holes 33a to 33d. By pushing it in from one side, it is removed from the fastening element 15 and inserted through the bracelet loop (not shown) at one end of the bracelet part 3b. The holding axis 19 inserted through the bracelet loop is then pressed into one of the pairs of holes. To press in, one side of the holding axis is inserted into a hole in a selected pair of holes. The other side of the axis is pressed in with the fingernail, placed on the inside of the side leg 31a or 31b and pushed into the relevant other hole of the pair of holes. The bracelet part 3b is now attached to the fastening element 15.
- the other bracelet part 3a with the perforation 4 which is generally tapered at the front, is pushed over the crosspiece 51, deflected by the two lateral entry aids 53a and 53b, through the opening 61 of the pull-through loop 49 and so far retracted until the perforations 4 corresponding to the desired bracelet size lie above the pins 9a and 9b.
- the pins 9a and 9b are pressed into the perforations 4.
- the bracelet is attached to the folding clasp. It can now be applied, with the pins 9a and 9b facing the arm surface.
- the two tab parts 7a and 7b are folded together. Shortly before it is completely folded, the tongue 45 engages at the end 47 of the tab part 7b.
- the securing flap 23 is now folded over the fastening element 15 and engages in which the heads 27a and 27b of the latching element 21 fall into the openings 60a and 60b.
- the bracelet which is now closed, ie shortened in circumference, cannot move on its own Open more.
- the nose 17 is pressed down and thus the fastening element 15 is pushed upwards with unlocking of the tongue 45.
- the deflection lock 1 can be opened and the bracelet removed.
- the side parts 43 of the fastening element 15 can be pulled down and then serve as a lateral guide for the bracelet parts 3a and 3b.
- the recess and the bracket of the securing flap 23 can also be designed in the manner of a web with approximately the same width.
- the first-mentioned training results in a more attractive appearance and a better grip for the fingernail when opening.
- tab parts can also be made approximately straight, but then from flexible material.
- the tab parts then automatically adapt to the corresponding arm surface.
Landscapes
- Buckles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97925813A EP0912124A1 (en) | 1996-06-26 | 1997-06-24 | Folding fastening system for a bracelet and bracelet with this fastening system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH160796 | 1996-06-26 | ||
CH1607/96 | 1996-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997049309A1 true WO1997049309A1 (en) | 1997-12-31 |
Family
ID=4214389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1997/000249 WO1997049309A1 (en) | 1996-06-26 | 1997-06-24 | Folding fastening system for a bracelet and bracelet with this fastening system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0912124A1 (en) |
WO (1) | WO1997049309A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158145A (en) * | 1984-04-26 | 1985-11-06 | Citizen Watch Co Ltd | Watch band fastener |
FR2699796A1 (en) * | 1992-12-28 | 1994-07-01 | Maier | Folding clasp for adjustable strand bracelet. |
FR2716778A1 (en) * | 1994-03-03 | 1995-09-08 | Boucledor Sa | Fastener with two articulated plates for bracelet |
GB2294862A (en) * | 1994-07-15 | 1996-05-15 | Bear Leather Creations Company | Clasp for watch strap |
-
1997
- 1997-06-24 EP EP97925813A patent/EP0912124A1/en not_active Ceased
- 1997-06-24 WO PCT/CH1997/000249 patent/WO1997049309A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158145A (en) * | 1984-04-26 | 1985-11-06 | Citizen Watch Co Ltd | Watch band fastener |
FR2699796A1 (en) * | 1992-12-28 | 1994-07-01 | Maier | Folding clasp for adjustable strand bracelet. |
FR2716778A1 (en) * | 1994-03-03 | 1995-09-08 | Boucledor Sa | Fastener with two articulated plates for bracelet |
GB2294862A (en) * | 1994-07-15 | 1996-05-15 | Bear Leather Creations Company | Clasp for watch strap |
Also Published As
Publication number | Publication date |
---|---|
EP0912124A1 (en) | 1999-05-06 |
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