DE958881C - Stretchable band body - Google Patents

Description

ISSUED FEBRUARY 28, 1957

R 16546 III 144a

Willy Wolf, Pforzheim

has been named as the inventor

Stretchable band body

The invention relates to stretchable tape bodies for jewelry and uses, e.g. B. For bracelets, watch straps, etc., which are hollow from lying transversely to the longitudinal direction of the strap Band links exist whose longitudinal wall «· with Slits are provided for the passage of intermediate links. In a known band body of this type, the intermediate links are formed by spring legs that extend from in the ends of the Loosen wire screws lying on the links and cross each other in pairs through short slits of the link walls of adjacent links extend and with bent back at their ends The eyelets rest against the inside of the longitudinal wall of the limbs under their own tension. From the acquaintance the subject of the invention differs by a new simple type of stretchable Connection of the links.

According to the invention, two V-shaped intermediate members each extend with opposite one another Arrangement of their open sides through the longitudinal wall slots of the box members and lie on the Ends of the slots under the action of springs, with the ends of the intermediate links of the Intermediate links in the band plane extending pins are attached. Between the tenons two opposing intermediate links are clamped in two compression springs, which the push the two V-shaped pontics apart. The on the V-shaped

directed legs of the intermediate links sliding box links to the lowest point of the Intermediate links and thus box link pressed against box link and thus the band body closed held. When the belt body is stretched, the legs become V-shaped Intermediate links against the action of the compression springs through the slots in the longitudinal walls of the pushing apart box members,

ίο so that the intermediate links cross and the Move the box sections in the longitudinal direction of the belt.

Through this arrangement and training of the

Intermediate links a completely new mode of action is achieved in stretchable bracelets, which is characterized in particular by its extremely simple and cheap production and in decorative Regard can be used for jewelry ribbons of all kinds.

In the drawing, an embodiment of the innovation is shown in three figures, which shows in

Fig. Ι the relaxed belt body in plan view, partly in cut, in

Fig. 2 shows the tensioned band body in the same view, partly in section, in

Fig. 3 an intermediate link in perspective.
The band body consists of hollow box members 1 lying transversely to the longitudinal direction of the band, any hollow box members 1 in terms of their shape and method of manufacture, on the longitudinal walls 2 of which slots 3, 3 'have been cut out. From the slots 3, 3 'extend from one box member into the other two V-shaped bent intermediate members 4, 4', on the leg ends 6, 6 'of which pegs 7 are attached.

When the V-shaped intermediate members 4, 4 'are installed in the box members 1, they come to lie with respect to one another in such a way that the central parts 8 extend towards the center of the belt width. Between the oppositely directed pins 7 of the two intermediate links 4, 4 ', compression springs 9 are suspended under pretension, which press the intermediate links 4, 4' against the end walls 3 ″ of the slots 3, 3 'of the box links 1. In the relaxed state of the belt body, the end walls come up 3 "

to lie on the middle part 8 of the intermediate links 4, 4 '. If the band body is stretched, the legs 5, 5 ', which diverge in an X-shape, are urged through the slots 3, 3' of the box members 1 against the action of the spring 9 until the springs 9 strike the longitudinal walls of the box members 1. When the tension is released, the box members 1 move together again forcibly guided by the angled legs 5, 5 'of the pressurized intermediate members 4, 4'. Of course, the intermediate links 4, 4 'can again be enclosed by a box-shaped intermediate link, so that the stretched band body also appears closed and uninterrupted.

Claims (4)

PATENT CLAIMS: 1.Expandable band body made of hollow box members lying transversely to the longitudinal direction of the band, the side walls of which are provided with slots for the passage of intermediate members, characterized in that in each case two V-shaped intermediate members (4, 4 ') opposite one another through slots (3) 3 ') from a box member (1) into the others extend and by means of compression springs (9) to the end walls (3 ") of the slots (3, 3 ') of the Box members (1) are printed. 2. Stretchable band body according to claim i, characterized in that the intermediate member (4) consists of a rectilinear part (8) and of which there are legs (5, 5 ') angled as desired on both sides, at the ends of which (6,6') Pins (7) are molded or bent. 3. Stretchable band body according to claim 1 and 2, characterized in that the slots (3) 3 ') in the box members (1) in their width are dimensioned so that once the maximum expansion is achieved by stopping the compression spring (9) on the side walls (2) of the box members (1) is determined, for the other time in the relaxed Position the end walls (3 ") of the slots (3, 3 ') on the central parts (8) of each opposite intermediate links (4, 4 ') rest. 4. Stretchable band body according to claim 1 to 3, characterized in that the intermediate members (4, 4 ') are enclosed by a sleeve-shaped member. Considered publications:
U.S. Patent No. 2,259,542. 1 sheet of drawings ® 609 616/5 + 8.56 (609809 2.57)