DE691141C - Hook lock for watch bracelets with a locking link for the hook mouth - Google Patents

Description

Hook lock for watch straps with a locking element for the hook mouth The invention relates to a hook lock for watch straps with a locking member for the hook mouth, in which the free end of the hook and the locking member each two bent at obtuse angles; with -the angled vertex facing guide surfaces for the hanging hatchet.

Hook locks for this type are already known. With such a hook lock it was achieved that the closing movement can take place in the longitudinal direction of the hook, the guide surfaces can occupy the full clear height and width of the hook housing, and further that the hook mouth and thus the entry and exit path of the hanging part can be kept short and that the hook can be hooked in and unhooked without operating any opening means simply by placing a finger on the hook surface and moving the hook in the hooking or unhooking device, the hook automatically coming into abutment with the guide surface of the locking member designed as a slide, that is under spring action and therefore allows the hanging hatchet to pass through in one direction or the other. There are also hook locks known in which the hook tube is pivotably arranged in the hook housing; The rotary flap, which is under the action of a V-shaped spring, is closed. All previously known hook locks of the type mentioned have one or the other disadvantage. Some of them require a movement deviating from the longitudinal direction of the hook in one direction or the other in order to open the closure flap, which makes handling more difficult. In another part of such hook locks are handle catches, handle edges, pushers .o the like. to open the closure flap: which protrude from or on the hook housing and are thus a hindrance to the decorative design of the hook housing and lead to damage to the sleeves of the garments and make special handles necessary. Still other hook locks require multi-part and multi-part devices for opening and closing the flap, which are difficult to accommodate in the hook housing, therefore enlarge this and do it all: @ Make hook locks more expensive. Another @ r- ' kind, in which the in and out: shängebeweb in the longitudinal direction of the hook #, x @ t Excessive height and shape unsuitable as hook lock straps for jewelry items ..

All these disadvantages are to be eliminated by the invention, whose essence consists mainly in the fact that a hook lock with a Versclilußglied for the hook mouth, in which the free end of the hook and the closure member Two guide surfaces each bent at an obtuse angle with the apex facing each other Form for the hanging part, the obtuse angles bent guide surfaces of the closure member on a spring-loaded one that can be swiveled into the hook housing when it is opened Rotary flap are attached.

As a result, the advantages resulting from the arrangement of two are obtuse-angled kinked; with the angled vertex facing guide surfaces at the end of the harbor and on the closure member with a resilient slide as the closure member Hook lock were achieved, now also for hook locks with a rotary flap as Closure, links. Here, too, the guide surfaces can now have the full width and Height of the, Haiheng housing and thereby entanglement of the hanging part on the or prevent behind the closure member without parts of the closure member at his movement must hex escape from the hook housing. In addition, is also at the design with rotary flap he r eicht that the hooking in and unhooking in the Longitudinal direction of the same @ellzfach by placing a finger on the surface the hook fish and move it in the hanging or unhooking direction can, with the hanging part also automatically with the relevant guide surface the rotary flap comes into abutment, the flap yields resiliently and the hanging part 'lets pass in one direction or the other. When opening the hook lock can be done even more simply in the white that two fingers of one hand each in front of and behind the hooks on the parts connected to the same and these are pushed against each other, whereby the hook and the hanging part through the already described interaction of the latter with the guide surfaces. the shutter automatically jump out of engagement. That eats up the handling of a hook lock Significantly simplified with closure flap. Its construction is also simpler and cheaper to manufacture.

. - Further features of the invention will be apparent # i # 111 from the following description and x @ iien claims. In the drawing, two exemplary embodiments of the subject matter of the invention are shown. They show: Fig. I a hook lock according to the one embodiment, in which the locking member is arranged on the bottom of the hook housing and can be pivoted upwards, in the middle longitudinal section and closed, Fig. 2 the same open, Fig. 3 a longitudinal cross section of Fig. I, Fig.q. a hook lock according to the other version, in which the flap is hanging, arranged directly behind the hook mouth and can be swiveled backwards, also in longitudinal section and closed, Fig.5 the same opened and Fig.6 again. a longitudinal cross-section ton Fig. q ..

The hook closure consists mainly in both versions from the housing-shaped hook A, the locking member B arranged in this and its suspension C.

The hook housing composed of the cover a, the two side walls b and the bottom c has a rectangular cross-section and carries the hook end bent back and forth at the front end of the housing cover ea. The rear end of the housing cover a is slightly bent up and forms a grip edge e. At the rear end of the side walls b , bearing lugs f are provided for a hinge pin, to which a hinge part h of the band body i of a bracelet is connected. The side walls U and the bottom c of the hook housing are cut out so far at their front ends that; a sufficiently wide through opening remains between these parts and the inner surface of the hook nose.

The free end of the hook, and d VerschlußgliedeisB each have two obtuse bent, with their angle apices v, tv mutually facing guide surfaces r ° s and t, u for the hooking-on x. In addition, the end wall of the closure member opposite the hook mouth is provided with a hollow catch for the inlet length part.

The closure member B consists of a in the Ha kengehäus; e A pivotably arranged, under spring action Dreliklapperrz, which with -, on her. rear end provided lateral pivot pin n in corresponding bores of the housing side walls b: is pivotably mounted and the hook end or its angular vertex v formed by the guide surfaces y, s faces with its angular vertex iv and the guide surfaces t, u lying on both sides of the same. The angular vertices v, u facing each other can be fassien over each other, so that sometimes x longer passage arises in the direction of movement of the suspension, which, depending on its length, makes the passage of the suspension part more or less difficult and thus to a corresponding extent Securing against too easy unhooking of the hook can be used. The rotary flap m can also be provided with side walls o in order to prevent foreign bodies from entering the hook housing A. The suspension C of the Klappein consists of a V-shaped leaf spring p on a. on the rear edge of the flap with a web q formed by a transverse slot in a space-saving manner and is supported with its one leg against the inner surface of the clapper, with its other leg against the inner surface of the housing cover a.

In the embodiment according to Fig. I to 3 of the drawing, the rotary flap forms the foremost part of the housing base c and is mounted with its lateral pivot pin n directly above the front end of the shortened housing base c in the housing side walls b. The hook is attached and detached by introducing the attachment part x between the guide surfaces s, u and r, t at an acute angle to one another. Moving the hook automatically in that the. Hanging part x strikes against the guide surface u or t of the Klappein and pushes it back against the action of its closing spring p. Since the flap in this arrangement swings vertically upward into the hook housing when the hanging part x passes through, the flap part carrying the guide surface i cannot extend below the housing cover a. The front edges k of the side walls b of the hook housing A serve as an extension of the guide surface t, which is therefore shortened. These edges k are arranged in such a way that they extend in the direction of the guide edge t on the rotary clapper up to below the hook ceiling a. In this way, when the hook and suspension ax move against each other, they move once into the upper part. of the hook mouth comes, the hanging part is first passed through the front edges k of the housing side walls b down and then onto the guide surface t of the rotary flap in. The space t1 for the one-sided part x is formed here by an @entsparechemde bevel t2 of the lower end of the edges k and a bevel t3 on the upwardly directed front edge of the rotary flap in. In this notch ti, the suspension part x is initially held up on its way out of the hook. An additional action on the hook can then slide the suspension part x out of the catch t '.

With you execution according to Fig, q. to 6 of the drawing, the closing flap m is arranged inwardly pivotable against the spring action, directly behind the hook mouth, and with its lateral pivot pins n underneath the housing cover a pendulum bearing in bores in the housing (side walls b . The flap in here consists only of the guide surfaces t The part that rises from the lower guide surface ü to the bottom c of the hook housing A is formed by the front part y of the housing base the closing flap m when hanging and unhooking the hook by striking the hanging part x on the guide surface u or the pushing back of the flap m and then the passage of the hanging part x. A special protection against opening the hook too easily is required in this embodiment not because the hanging part x at, its stop on the closure flap.pe m meets this first at its smaller HiebeUrm and d amit initially met with greater resistance. Only with the further movement of the hanging part x along the closing flap in can that nut act with greater leverage and then be able to overcome the force of the closing flap spring p and push back the flap.

Claims (1)

PATENT CLAIMS: i. Hook lock for watch straps with a locking member for the hook mouth, in which the free end of the hook and the locking member - each bent at two obtuse angles, with the angle apex facing each other form guide surfaces for the hanging part, characterized in that the obtuse angled guide surfaces (t, u The closure member is attached to a rotating flap (m) that can be swiveled into the hook housing when opened under the action of a spring. z. Hook lock according to Claim i, in which the front edges of the side walls of the hook housing run downwards and backwards out of the hook mouth, characterized in that the front edges (k) run towards the upper end of the shortened upper guide surface (t) of the rotary flap (m) To serve as a feed line to the shortened guide surface (t) during the unhooking movement for the hanging part (x). 3 :. Hook lock according to claims 1 and 2, in which a hollow catch for the hanging part is arranged in the area of the upper guide surface, characterized in that this hollow catch (tx) partly through the guide edges (i2) of the side walls (b) of the hook housing and on the other part by a bevel (t3) of the upper edge of the part of the rotary flap (m) that carries the guide surface (t) and is arranged at an obtuse angle to them q .. Hook lock according to claim i, characterized in that the rotary flap (m) is suspended in a pendulous manner immediately behind the hook mouth and under the hook housing cover (a) i st and their free lower edge, against. supports the downward sloping front part (y) of the hook housing base (c). 5. Hook lock according to claim i and q. with a V-shaped closing spring clamped between the hook housing cover and the rotary flap, characterized in that the rotary flap (m) has, on its transverse edge which coincides axially with its bearing, a web (q) formed by a slot running along the same, around which -the V-shaped closing spring (p) grips around with its hinge-shaped apex part.