DE3435207A1 - Fastener for bracelets - Google Patents

Abstract

The invention relates to a fastener for bracelets, having an end member 3, a telescopic end member 1, and at least one central member 2 arranged between the latter, said members being linked to one another so that they can be folded together in a Z-shape and can be held by a catch connection 7 in the folded-together position resting against one another. The telescopic end member 1 has a first and a second part 16 and 17 which are displaceable relative to one another in the longitudinal direction of the fastener, the first part 16 being constructed with a plurality of catch points 22 into which a catch member 24, arranged on the second part 17, can be engaged, and the catch points 22 and the catch element 24 being movable relative to one another in a resilient manner. The catch points 22 can be blocked in their position engaged in the catch element 24. <IMAGE>

Description

Closure for bracelets

The invention relates to a closure for bracelets, especially for watch straps, with an end link, a telescopic end link and at least one central link arranged therebetween, said links collapsible to one another in a Z-like manner hinged and by εϊπε locking connection in the folded, contiguous position are retained, with a first and a second part of the telescopic end link extending in the longitudinal direction of the Werschluß are displaceable relative to each other, wherein the first link formed with εΐπετ ader several locking points is, into which one or more latching elements arranged on the second part can be latched and latching points as well as the latching elements are resiliently movable relative to one another.

With such known closures, it is possible for the length of the bracelet to be variably adjustable by a certain amount is.

This is ζ. B. in watch straps won advantage, so that the length = of the bracelet can always be adjusted according to the current size of the bracelet. This is because this increases with higher Temperatures or when doing sports while he is at Ruhicam Behavior and reduced at low temperatures.

The disadvantage of the known closures is that they are also unnecD-sighted Easily adjustable, especially in an extending length are, which can lead to a loss of the bracelet and possibly the 1D clock can come.

The object of the invention is therefore to provide a closure according to the generic term to create, in a simple way, an unintentional Changing the length of the bracelet safely avoids.

This object is achieved according to the invention in that Rastel = - elements and / or locking points can be blocked in their interlocked position. This can happen in this way The length of the bracelet is adjusted even if the effort is greater no longer lengthen or shorten.

The latching elements and / or the latching points are preferably on an element extending in the longitudinal direction of the closure its one end attached to a part of the telescopic end link and formed resiliently pivotable about its attachment point. In this case, a blockage can be carried out in a simple manner that a blocking element is in contact with the latching element and / or side of the spring arm facing away from the locking points bewsgbai is.

Increased safety with a simple design is achieved in that two symmetrically arranged to each other Sine spring arms arranged at a certain distance from each other which have locking points on their sides facing away from one another, into which locking elements can be locked, the blocking element between the two spring arms filling the certain distance

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movable 15 1 - There is only one joint for both spring arms Blocking element required.

The spring arm can have several locking points ■ and / or, forming locking elements be designed like a rack and pinion. The tooth height is the Teeth of the rack from the fastening point nearer area to the area distant from the fastening point enlarging formed, the deflection is represented -. Spring arms in the event of a change in length The closure is always the same size.

A slight repair, by replacing a damaged spring arm is thereby possible that the Fedetarm is fastened by a bolt to Einsm part of Teleskopendgliedes, wherein the ΒοΙζεπ under press fit in a bore in the spring arm and a bore TelEskopEndgliedES ties is disposed in the part.

So that when the length of the bracelet is changed, the tsile des Telescopic end linkThe end positions can not detach from each other the relativity of the first and second part 2D of the telescopic end link may be limited by one or two stops. This is achieved in a simple manner in that the stop so arranged protruding at one end of the rack is that the locking element is movable to rest thereon. s.

Are in the end positions of the relative displacement of the first and in the second part the locking elements are locked into the locking points, so the set positions can also be blocked in these end positions Length.

3D A separate confirmation of the blocking element is then not Required if the blocking element is on the end glisd or a Central link is arranged and in the collapsed position of the links of the closure in blocking operative connection with the locking elements and / or the locking points, since in this way simultaneously with the closure of the closure a The locking elements are blocked in the locking points.

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In this case, the blocking element can preferably be folded into one in which it is folded POSITION OF THE GUARDS OF THE CLOSURE TO THE TELESCK TERMINAL be directed blocking stop.

To protect against automatic opening of the folded EÜEder of the bracelet, the 'fixed connection for holding the 3Üe of the clasp in the folded position can be a positive locking connection. In this case, a particularly hühE security can be reached when the catch connection is fastened to the Encglied _# in the folded position of the members to the other members directed hook of a a ~ a means of links or the Teleskopendglied molded. Locking element can be reached from behind.

A simple design is that the locking element sin counteracts a spring force from its locking to its The unlocking position of the sliding gate valve is, where the l = rschiebeweg the locking slide can be limited by stops. Since the blockage of the interlocking locking elements and locking points only in the unfolded position of the members of the Locking and opening only when the snap-in connection is open is possible, this locking connection also forms an actuating device for the blanking element.

An embodiment of the invention is shown in the drawing and is described in more detail below. Show it

Figure 1 shows a closure in a side view

Figure 2 is a view of the telescopic end link of Figure 1 from

the side turned away from an observer

Figure 3 is a plan view of the middle link of Figure 1 partially in section
35

The closure shown in the figures has a Z-fold collapsible ^ hinged together at their ends, a part -

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Scope end link 1, a middle link 2 and an end link 3. At the free ends of the Teleskopendglifi'ds 1 and the end ^{link 3, a partial link ^, ^ 1 of} a link bracelet, not shown, is formed. ■ 5

On the side of the end link 3 facing the middle link 2, a mushroom-shaped hook 5 is arranged, which protrudes when the end link 3 and middle link 2 are folded through a hole S in the middle link 2 into the area of a latching device 7 arranged on the middle link 2. The latching device 7 consists of a locking slide 9 which is provided with a through opening 8 and which is arranged displaceably in a housing 1D. The displacement path of the locking slide 9 is limited by a bolt 12 fastened to the middle link 2 and projecting into a recess 11 of the locking slide 9. The walls of the recess 11 formed with a larger diameter than the diameter of the bolt 12 form stops.

The locking 2D Slide 9 to rest on the bolt 12 in its locked position beELifschlagt.

The hook 5 can then be passed through the through opening 8, when the gate valve 9 against the force of the Dtuckteder 13 can be moved into its unlocked position. After the Bending back the locking slide 9 into its locking position the locking slide 9 engages behind with its [dandungsbereich cer Through opening 8 the hook 5 and thus holds the end link 3 almost in contact with the middle link 2.

In order to be able to operate the locking slide 9, it protrudes transversely to the The longitudinal direction of the closure protrudes from the housing 1D and is due to the application of pressure to its protruding from the housing 1D Locking side can be moved into its unlocked position.

A locking of the hook 5 in the locking device without actuating the locking slide 9 by simply pressing the

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Middle link 2 with the end link 3 is possible because: jer Hop of the mushroom-shaped hook with a shoulder-like bevel "4

fi -

is formed by the insertion of the hook 5 in c: ° Passage opening 8 of the locking slide 9 in, its unlocking position pushed to then back into the locked position to enclose.

The telescopic end link 1 is connected to the middle part via an axis 15 2 connected. In a first box-shaped towards the middle link open part 16 of the telescopic end link 1, a second part 17 is guided displaceably in the longitudinal direction of the closure. To the free end of the telescopic end piece 1 is on the second "sil 17 the partial member ^ 'arranged.

On the inner bottom of the first split member 16 is a horseshoe-shaped one Spring part 18 is fastened with its transverse web 19 in that holes in the bottom and in the transverse web 19 by bolts 2C are penetrated, the bolts 2D with press fit in the holes sit. -

The spring part 18 also sits two in the longitudinal direction of the closure towards the axis 15 extending around its Eafestigungsstelle formed by cie connection point with the attached transverse web 19 pivotable spring arms 21. Between the two spring arms 21 there is a certain distance so that they can move towards each other to a certain extent.

On their sides facing away from one another, the spring arms 21 are designed in the manner of a rack and form with their tooth gaps Rest areas 22.

The second part 17, proceeding from the partial member 4 ', has two arms 23, enclosing the spring arms 21 between them and extending towards the axis 15, each of which is designed with a cam-like locking element Zk which is inserted into one of the locking

set 22 can be locked. ^c

By moving the second part 17 in the first part 16, the locking elements Zk slide with resilient compression cer

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Spring hinge 21 on the flanks of the locking points 22 up until si = after overcoming the Zahnspit? cn in the next rest areas £ 2 snap into place.

Behind the first and last locking points 22 are on the spring arms 21 stops 25 arranged that the displaceability of the second part 17 in the first part 16. So that the spring arms 21 are always equally greeted is the tooth height of the teeth of the locking points 22 of the dsm Crossbar 19 area closer to the 1G area further away from crossbar 19 is designed to be enlarged.

In the area of the free end of the end link 3, a blocking stop 2G is arranged on the side facing the telescope end link 1 in the folded state of the links, which has a width transverse to the longitudinal direction of the lock that corresponds approximately to the distance between the spring arms 21 in their normal position as shown . In this normal position, the latching elements 2k are latched into latching points 22.

If the members of the closure are folded together lying against one another, the blocking stop between the spring arms 21 comes to rest on the bottom of the part 16, so that the spring arms 21 can no longer be moved towards one another. The latching elements 2k are thus held at the latching points 22 in which they are located and a sliding movement of the second part 17 in the first part 16 is blocked.

The blanking stop 26 protruding from the end member 3 can rest against the bottom of the first part 16 3G in that the end member 3 and the first part 16 extend beyond the area of the axis 15, away from the area of the partial element k ^l .

Because this end of the first part 16 extends over the area the axis 15 extends and the locking device 7 on the

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the part member ^ ^{1 is} arranged nearer the side of the axis 15, with the end member 3 and middle link 2 coupled together by the latching device, the telescopic end link 1 is also held in contact with the middle link 2, so that the spring arms 21 can only be removed and thus unblocked when the latching device 7 is released is possible.

If the length of the bracelet is now to be shortened or increased, so only the links are after opening the locking device 1G of the closure at least partially uegzuklappen from each other and by bending in or pulling out one end of the bracelet connected to the second part 17 in the first part 16 to set the new length of the bracelet and fold it up to block the links of the breech.

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Claims (16)

Patent claims Closure for armbands, in particular for watch straps, with an end link, a telescopic end link and at least a central link arranged between them, whereby these links can be folded together in a Z-like manner and can be held in the folded, abutting position by means of a latching connection, with a second part A first and a second part of the telescopic end member, which can be displaced relative to one another in the longitudinal direction of the connection, and in which the first part is formed with one or more latching points into which one or more latching elements arranged on the second part can be latched and latching points and latching elements are resiliently movable relative to one another, characterized in that locking element EPOCOfY MentE (24) and / D of the locking points (22) in their interlocked Position can be blocked. 2. Closure according to claim 1, characterized in that the latching elements (24) and / Dder the latching points (22) on one in The spring arm (21) which extends in the longitudinal direction of the closure is fastened at one end to a part of the telescopic end member (1) and is resiliently pivotable about its fastening point.
1D ' 3. A closure according to claim 2, characterized in that a blocking element can be moved in abutment against the side of the spring arm (21) facing away from the latching elements (24) and / or the latching points (22). 4. A closure according to claim 3, characterized in that ζωεΐ symmetrically arranged spring arms (21) are arranged at a certain distance from each other, which have latching points (22) on their sides facing away from each other, in which 2D latching elements (24) can be latched, the blocking element between the two spring arms (21), filling the certain distance is movable. 5. Closure according to one of the preceding claims, characterized in that the spring arm (21) has a plurality of latching points (22) and / or latching elements forming, is designed like a rack. 6. A closure according to claim 5, characterized in that the tooth-3D height of the teeth of the rack from the area closer to the fastening point to the region farther away from the fastening point is designed to increase. 7. Closure according to one of the preceding claims, characterized in that the spring arm (21) in the middle 1-s of a bolt (2D) can be fastened to a part (17) of the telescopic pendant member (1), the bolt (2G) being press-fit in a hole in the spring copy <r- -ν / arm (21) and a hole in the part (17) of the telescope -: - member (1) is arranged. Ί
8. closure according to one of the preceding / claim, dadurc " characterized in that the end positions of the Reiativverschiebbarkeit the first and second part (16, 17) of the telescopic member (1) by a bzu. ' Stops (25) are limited. 9. A closure according to claim B, characterized in that the stop (25) is arranged protruding at one end of the toothed rackE dErart, that the latching element (24) can be moved to the anchorage thereon. 1G. Closure according to claim B, characterized in that in the end positions of the relative displaceability of the first and second parts (16, 17) the locking elements (24) are locked into the locking disks (22). 11. Uerschluß according to one of the preceding claims, dadurc "characterized in that the blocking element on the end member (3) or is arranged on a middle member and in the folded position of the members of the closure is in a blocking connection with the latching elements and / or the latching point (22).
25th 12. U closure according to claim 11, characterized in that d = s blocking element is a blocking stop (26) directed towards the telescopic end member (1) in the folded position of the members of the closure. 13. U lock according to one of the preceding claims, characterized in that the locking connection (7) for holding the members of the U lock in the folded position is a positive locking connection. 14. U-closure according to claim 13, characterized in that a snap-in connection (7) attached to the end member (3), in to- Collapsed position of the limbs to the other Bi "iec = rn directed hook (5) is that of an an.einem of the M i ~ - ε 1 members (2) or the locking bar arranged on the telescopic end link = - ment can be grasped from behind.
5 15. A closure according to claim Ht, characterized in that de = locking element is a locking slide (9) which can be displaced from its locking position into its unlocking position against a spring force. 16. A closure according to claim 15, characterized in that the Uerschiebeueg of the locking slide (9) is begi = nzt by stops. EPO