CH262178A - Clasp for link. - Google Patents

Description

Clasp for link. The main patent NO 252851 relates to a clasp for a link, in particular for a watch bracelet, comprising a body and two traetion elements intended to be attached to this body, an L-shaped rocker being articulated to said body in such a way that in position closure, one of the traction elements cooperates with the small branch of this rocker, so as to cause the latter to rotate in the direction for which the Brande Branch comes to rest against the Body of the clasp to ensure closure of the last.

According to the present invention, the traction element cooperating with the small branch of the L-shaped rocker to pivot the latter and bring it into the closed position remains hooked permanently to the body, the other element being capable of being separated from the body and held attached thereto by a part of the base when the latter is in the closed position.

The appended drawing shows one embodiment of the object of the invention, given by way of example.

fja fig. 1 is a longitudinal section in the closed state.

fig. 2 shows the same cut in the open state.

The clasp represents eompose a Body 1 having a U-shaped cross section and in which. are countersunk and drilled various openings; firstly, near one end, an inclined notch 2 formed in each wing of the Profile; then, near the other end, an opening 3 presenting upwards an inlet channel 4 and also provided in each wing of the Profile; finally, two coaxial holes, ä, at the rate of one per wing, pierced at 5 behind the notches 2, and serving to receive the pivot axis of the L-shaped rocker designated by 6.

The notches 2 are used to receive a bar 7 by which one of the traction elements, sofft a Gosse 8 to which is attached the free end of a cord 9, is hooked to the Body 1, while the openings 3 receive, in an analogous way, a strip<B>1.0</B> of a Gosse 11, connected to a Gor givenet 12, and constituting the other traetion element to be hooked to the Body 1.

The rocker 6, in the form<B>d1,</B> consists of a Brande Branch or cover, intended to cover the first Body 1 in the closed position, and a small branch 13. The free end of the Brande Branch Has a tooth 14.

It emerges from the arrangement drawn that the inclined lateral notches 2 of the Body lead the bar 7 against the small Arm 13 of the rocker and that, similarly to what has been explained in the main patent, any traction RTI ID="0001.0267 "WI="12" HE="3" LX="1187" LY="2026"> exerted on the 1st drawstring 9 and the Gosse 8 tends to cause rotation of the base 6 Jans in the 1st direction of closure of the clasp (Position of Fig. 1).

The opening (Position of fig. 2) can only be done by releasing the traction exerted on the cord, so as to release the small brauche 13. The angle of displacement of the latter is limited by a heel 15, the Posi drawing in fig. 2 showing the maximum value.

In this Position, the 1st Body 1, as well as the rocker 6 and its tooth 14 oppose the exit of the bar 7 and the ointing of the Kid B. This is so, contrary to the shape of execution given, by way of example, in the main patent, the element acting on the small arm of the rocker which remains permanently attached to the body.

The other 616ment is retained in the closed position by the tooth 14, in cooperation with the opening 3, but can escape from them when the first clasp is open, ie in the position of FIG. 2.

In the closed position (fig. 1), the bar 10 is housed behind the tooth 14, in the first bottom of the openings 3, the first channel 4 being oriented in such a way that it is op- then poses at any displacement of said bar, and the free space remaining between the posterior wall of the canal and the gel of the tooth being insufficient to give passalte to the bar.

The flank of the tooth 14 against which the bar 10 rests being inclined so as to converge towards the small brauche 13, it is seen that any traction exerted on the Gosse 11 by the cord 12 will tend to wedge the bar 10 between the tooth. and the bottom of opening 3, in which it will thus be locked.

Traction can, moreover, never be exerted on a breast. cord, it is clear that, in each Gas, the two strips 7 and 10 will tend to move away from each other. But while bar 10 will get stuck as just said, bar 7 will keep the clasp closed, any increase in pulling force only further opposing a separation of the elements joined by the clasp. clasp.

In fig. 2 of the drawing, the large Leg of the rocker appears slightly rounded. The object is, by forcing it to deform elastically by straightening up at the moment of closing to allow the tooth 14 to pass behind the bar 10, to cause said tooth to press against said bar which presses in 1st Fund of its housing.

To open the clasp, care must be taken to completely release the tension of the cords, then grasp rocker 6 from below, in the vicinity of tooth 14, lift it and extract bar 10.

The introduction of the latter is, on the other hand, facilitated by the fact that the body 1 and the tooth 14 are profiled in such a way as to form on the outside two convergent inclined planes 16 and 17, on which it suffices to press the bar to that it is guided and enters the 1st clasp to hang there RTI ID="0002.0271" WI="16" HE="4" LX="1528"LY="856">. The closure takes place automatically, without spring, by the only traction to which the parts of the clasp are constantly subjected when the link is used.

Claims (5)

CLAIM Clasp for a link, in particular for a watch strap, comprising a body, two traction elements intended to be hooked to this Body and an L-shaped bascide articulated to said Body, in such a way as in the closing position of the clasp , the extremity of one of said traction elements cooperates with the small Branch of this rocker, so as to cause the latter to rotate in the direction in which the large Branch comes to bear against the Body of the clasp to ensure the closure of the clasp. the latter, characterized in that the traction element co-operating with the small Branch of the L-shaped base in order to make the latter pivot and bring it into the closed position remains permanently attached to the Body, the another element being capable of being separated from the body and maintained hooked to the latter by a part of the latch when it is in the closed position. SUB-CLAIMS 1. Clasp according to claim, charac- teris6 in that the angular rotation of the bascide is limited. 2. Clasp according to claim, characterized in that the part of the rocker now hooking the traction element not permanently fixed to the body is a tooth located near the free end of the large branch of the clasp. L-shaped rocker. 3. Clasp according to claim and sub-claim 2, characterized in that the tooth and the first body are shaped so as to be able to wedge between them the traction element retained by the tooth, when the lever is in position. closing. 4. Clasp according to claim and sub-claim 2, characterized in that said tooth has a flank cooperating with the traction element to retain the latter, this flank being disposed so as to converge towards the small branch. of the rocker in <B>L.</B> 5. Clasp according to claim and sub-claim 2, characterized in that in the closed position of the rocker, said tooth and the first body of the clasp form guides converging towards the first point of introduction of the element of the clasp. traction capable of being separated from the Body.