Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – Including member having distinct formations and mating...
Patent
1985-09-05
1987-05-05
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
Including member having distinct formations and mating...
24639, 24640, 24652, A44B 1126, A44B 2100
Patent
active
046620419
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a belt lock, particularly for vehicle safety belts, and the purpose of the invention is to provide a belt lock of the type comprising a lock housing and a lock tongue to be inserted into the lock housing, which comprises relatively few and simple components and provides great functional reliability. Accordingly, the lock breaks the tendency which has been dominating recently as far as the development of locks for vehicle safety belts is concerned and according to which the lock mechanism comprises a large number of complicated components arranged in such functional relationship that the risk of malfunction and rapid wear is greater than can be accepted.
According to the invention there is provided a lock of the type referred to above in accordance with claim 1.
In order to explain the invention in more detail embodiments thereof will be described below, reference being made to the accompanying drawings in which
FIGS. 1A and 1B are longitudinal sectional views of a lock of the invention in one embodiment thereof shown without lock tongue in FIG. 1A and with the lock tongue inserted into the lock housing in FIG. 1B,
FIG. 2 is a plan view of a plate forming part of the lock housing,
FIG. 3 is a plan view of another plate forming part of the lock housing and positioned in parallel to the plate of FIG. 2,
FIG. 4 is a plan view of a guide frame for the plates of FIGS. 2 and 3,
FIG. 5A and 5B are longitudinal sectional views similar to those of FIGS. 1A and 1B, respectively, showing a modified embodiment.
FIG. 6 is a plan view from below of the push button and the guide thereof in the embodiment of FIGS. 5A and 5B,
FIG. 7 is a longitudinal sectional view similar to FIG. 1B of another embodiment of the lock of the invention,
FIG. 8 is a view along line VIII--VIII in FIG. 7,
FIG. 9 is a view similar to that of FIG. 8 of a modification,
FIG. 10 is an axial sectional view of a lock for children's vehicle belts of the rucksack model, and
FIG. 11 is a sectional view along line XI--XI in FIG. 10.
Referring to FIGS. 1 to 4, the lock shown therein comprises a lock housing 10 and a lock tongue 11 for mutual co-operation. The lock housing comprises two plates 12 and 13 which are mutually spaced a distance which is slightly larger than the thickness of the lock tongue. The plates 12 and 13 are interconnected at one end thereof by means of a through rivet 14, an anchoring and wire rope being disposed around said rivet, the portion encircling the rivet being located as a spacer between the plates. At the other end thereof the plates are inserted into a guide frame 16 which receives the plates in recesses 17 mutually spaced by projections 18 which form spacers between the plates. A housing 19 is mounted on the plate 13 and this housing can consist of plastic material and be connected to the plate 13 by snap action at studs. In the housing there is provided a compression spring in the form of a conical helical spring 20 which is engaged between the bottom of the housing 19 and a steel ball 21, the plate 13 having a circular aperture 22 of such diameter that the ball 21 can pass through the aperture. An ejector 23 is arranged between the plates 12 and 13 and is biased by means of a helical compression spring 24 partly received by a longitudinal slot 25a in the plate 12.
An element 25a is mounted to the plate 12 as an attachment and guide member, and also this element can be made of plastic material and can be connected to the plate 12 in the same manner as the housing 19. The element 25 forms a circular aperture 26 which connects to an aperture 27 of the same size in the plate 12. Apertures 26 and 27 are in register with the aperture 22 in the plate 13 and the diameter thereof is smaller than that of the ball 21 and the aperture 27. In the passage formed by the apertures 26 and 27 a ball 28 is located. The passage is so large that the ball can pass through the aperture 26 as well as the aperture 27. A pressure arm 29 is pivoted to the element 25 at 30 and can be engaged with the ball 28. A push button 31
REFERENCES:
patent: 3473201 (1969-10-01), Hopka et al.
patent: 3570078 (1971-03-01), Neumann et al.
patent: 3704633 (1972-12-01), Iverson
patent: 3760467 (1973-09-01), Lohr
patent: 3846876 (1974-11-01), Weman
patent: 3935618 (1976-02-01), Fohl
patent: 4100657 (1978-07-01), Minolla
patent: 4392282 (1983-07-01), Wier
patent: 4393553 (1983-07-01), Wier
patent: 4468843 (1984-09-01), Duclos et al.
Geypa GmbH & Co. KG
Sakran Victor N.
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