DE508420C - Hook fastener for watch strap - Google Patents

Description

The invention relates to a hook fastener for watch straps made of fine precious metal mesh.

In particular, it is a hook closure that can be opened with one hand and can be held on to one hand the watch without the help of another Person to put on and take off, on the other hand to avoid that the bracelet ίο watch falls out of hand when opening.

Various hook fasteners have already become known, which are the same Tried to solve problems; but these are very imperfect. Partly they are The handle locks awkwardly and is difficult to grasp, or the hook clasps are for Braided ribbons not suitable.

According to the invention, there is the hook clasp, which is at the end of a watch strap is arranged from fine precious metal mesh and from a flat metal box sitting on the underside of the mesh band and one in it which can be pushed against a hook at the end of the tape under the action of a spring and is guided in a slot in the tape Handle knob retractable sliding slide, the innovation is that on the box a braided band comprehensive bracket is arranged, which on its one Edge carries a curved grip notch.

By making the larger parts of the fastener invisible on the underside the ends of the braid tape are arranged while on the tape surface only Handle and counter-handle parts are visible, but of the smallest extent, remains the fine Braid or its engraving undamaged; the effect of the braided tape remains undisturbed, and the clasp can easily be used with the thumb and middle finger of one hand can be opened from the back of the tape by a handle.

The hook fastener can also be used for leather straps with the same advantage.

In the drawing, the subject matter of the invention is shown in five figures. It demonstrate:

Fig. Ι to 4 the hook fastener on an enlarged scale, namely Fig. Ι in top view,

Fig. 2 and 3 in longitudinal section, open and closed,

Fig. 4 in bottom view with cut "box,

Fig. 5 the complete watch strap with the handle to open in side view.

α is the watch band, a band made of the finest precious metal mesh, which is connected to the eyelets c of the wristwatch d by means of hooks b, which consist of longitudinally slotted tubes that are soldered to the end edges of the bracelet, and by means of a resiliently extendable double link e dem inserted in its longitudinal center Scope is accordingly adaptable.

On the underside of the ends of the bracelet is a flat metal box / soldered on, that is open to the front and as a

tion for a closure slide g is used, which engages with its leading edge in the hook b by a spring h pressing against its rear end, also guided in the box f.

In the slide g a pin i is riveted, for the rivet head of which a cutout k is provided in the box f. The pin i itself passes through an eyelet m

ίο slot η in the braided tape α and ends on its surface in a small grip ball υ. At the rear end of the box / a bracket q is attached by means of a transverse pin £, which runs across the surface of the belt α and there is provided with a handle r that is bent slightly upwards.

By placing the middle finger ν on this grip approach r and the thumb u on the

2u grip ball c with slight pressure on the left arm. The locking slide g can be pushed back on the body t (Fig. 5) by compressing the spring h , thereby unhooking the hook b and putting the watch down with one hand.

The hook fastener can also be used for leather and grosgrain ribbons. In this case, the box f also has a bottom on the side facing the tape, which is soldered at its front edge to the hook b , to which the tape is also connected by means of a U-shaped rail pressed around the tape end.

Claims (1)

Claim: Hook clasp for watch straps, in particular those made of fine precious metal mesh, with a locking clip, which is spring-loaded in a flat box and has a handle button guided in a slot, characterized in that a bracket (q) encompassing the braid band (α) is arranged on the box (J), which has a curved grip notch (r) on one edge. 1 sheet of drawings