Title:
Wrist watch strap
United States Patent 2466741


Abstract:
This invention is intended to provide a wrist watch strap of molded plastic held in adjusted position by snap fasteners on the overlapping ends of the strap. One feature is a loop on each of the overlapping ends which prevents complete separation in case the fasteners are accidentally unsnapped....



Inventors:
Roehrl, Bruno C.
Application Number:
US66937546A
Publication Date:
04/12/1949
Filing Date:
05/13/1946
Assignee:
NAT ORGAN SUPPLY COMPANY
Primary Class:
Other Classes:
24/302, 24/DIG.43, 224/176
International Classes:
A44C5/22
View Patent Images:
US Patent References:
2392761Garment supporting belt1946-01-08
1851733Fastening for wristlets, bangles, belts, and the like1932-03-29
1831452Extensible bracelet1931-11-10
0466647N/A1892-01-05



Description:

This invention is intended to provide a wrist watch strap of molded plastic held in adjusted position by snap fasteners on the overlapping ends of the strap. One feature is a loop on each of the overlapping ends which prevents complete separation in case the fasteners are accidentally unsnapped. Further objects and advantages appear in the specification and claims.

In the accompanying drawing, Fig. 1 is a side elevation of a watch and wrist watch strap, Fig. 2 is an enlarged view of the overlapping ends of the strap, and Fig. 3 is a section on line 3-3 of Fig. 2.

Referring to the drawing, I indicates a wrist watch having at opposite ends spaced ears 2 receiving hinge pins 3 forming the pivotal connection between the wrist watch and the strap.

The strap comprises parts 4 and 5 made of flexible but substantially non-stretchable plastic, such as vinylite, nylon, etc. The part 4 has at its end a loop 6 through which the part 5 extends.

A similar loop 7 is provided on the part 5. As indicated in Fig. 2, the overlapping ends of the strap limit the maximum opening. On the outer part of the loop 6 are flaps 8 having on the under side integral projections 9 with enlarged heads 10. On the outer part of the loop 7 is a similar flap 1 having on its under side a similar projection 12.

The strap is adjusted to the desired length by sliding the overlapping ends of the strap through the loops. In the adjusted position, each of the projections 9 and 12 registers with one of a series of openings 13 in the overlapping ends of the strap. The openings are slightly smaller than the enlarged heads of the projections so that as the projections are forced through the openings, the heads snap through the openings and fasten the strap. Because of the flexibility of the material from which the strap is made, the projections may be molded integral with the strap.

When the strap is to be unfastened, the outer ends of the flaps 8 and II are lifted, withdrawing the projections from the openings. By locating the projections on a flap the unfastening of the strap is easier since the flaps are not held tightly against the outer surface of the strap. If the strap is accidentally unfastened, the loops 6 and 7 prevent complete separation of the strap ends so there is little danger of losing the watch.

What I claim as new is: 1. A wrist watch strap having overlapping ends of flexible plastic, each having a loop through which the other extends, a series of openings in the ends, and integral inwardly extending projections on the outer part of each loop registering with different openings as the strap is adjusted, the projections having heads of greater size than the openings whereby as the projections are forced into the openings the heads snap through and hold-the strap in adjusted position. 2. A wrist watch strap having overlapping ends of flexible plastic, each having a loop through which the other extends, each loop having a flap on the outside of the strap, a series of openings in the ends, and integral inwardly extending projections on the inner surfaces of the flaps registering with different openings as the strap is adjusted, the projections having heads of greater size than the openings whereby as the projections are forced into the openings the heads snap through and hold the strap in adjusted position.

3. A wrist watch strap having overlapping ends of flexible plastic, one having a loop through which the other extends, an integral inwardly extending projection on the outer part of the loop having an enlarged head, and registering openings of smaller size than the head in the end underlying the outer part of the loop into which the projection may be snapped to hold the strap in adjusted position.

4. A wrist watch strap having overlapping ends of flexible plastic, one having a loop through which the other extends, a flap on the outer part of the loop, an integral inwardly extending projection on the flap having an enlarged head, registering openings of smaller size than the head in the end underlying the flap into which the projection may be snapped to hold the strap in adjusted position.

BRUNO C. ROEHRL.

REFERENCES CITED The following references are of record in the 45 file of this patent: UNITED STATES PATENTS Name Date Yerington --------- Jan. 5, 1852i Johnson ------ _ Nov. 10, 1931 Shapiro -------- Mar. 29, 1932 Pease -------------- Jan. 8, 1946