Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – Including member having distinct formations and mating...
Patent
1982-02-10
1984-06-19
Mancene, Gene
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
Including member having distinct formations and mating...
24645, 24664, A44B 1125
Patent
active
044546343
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Safety belts with buckles of the type indicated in the introduction to claim 1 are described, e.g. in the Swedish Patent Application No. 7704854-4. This known mechanism includes a detent member movable in the direction of entry of a locking tongue forming part of the device while a pivoting locking member is constructed in such a way that the locking member may be pivoted to a release position when the detent member is moved in the direction mentioned. The locking member then presents an edge which must be passed, there then being a risk of the detent member catching on this edge leading to partial locking. Partial locking is a very difficult problem to overcome when designing safety belt buckles, and is a very essential problem as partial locking may mean that the two interconnecting buckle parts are separated under loads on the safety belt, e.g. in an accident.
SUMMARY OF THE INVENTION
The purpose of the present invention is to eliminate the risk of partial locking and to arrive at a buckle which is simple to manufacture and which meets stringent requirements of operation, durability, etc.
The invention accordingly provides safety belts including a lockable buckle part and a locking buckle part, the locking buckle part comprising a locking member pivoted in the locking buckle part for movement between a releasing position releasing the lockable buckle part, and a locking position locking the lockable buckle part the locking member being spring-biased to the releasing position thereof; a detent member movable between a latching position to retain the locking member in the locking position thereof, and a releasing position to allow the movement of the locking member to the releasing position thereof; a spring-biased ejector for ejecting the lockable buckle part when the locking member is moved to the releasing position thereof, said ejector being arranged to be moved by the lockable buckle part, thereby to move the detent member from the releasing position thereof; a pivoted linking arm operatively connected at one end to the detent member and at the other end to the ejector and biased by a spring arranged to bring the detent member by the intermediary of the linking arm to the locking position thereof upon connection of the lockable buckle part with the locking buckle part, and to the releasing position upon moving the detent member from the latching position thereof.
BRIEF DESCRIPTION OF THE VIEWS OF THE DRAWINGS
The invention will be described below through a realized example, with reference to appended drawings, in which
FIG. 1 shows a side view of the buckle according to the invention in the locking position,
FIG. 2 shows a corresponding view of the buckle according to the invention in the release position,
FIG. 3 shows an exploded view of the buckle,
FIG. 4 shows a central longitudinal section of the buckle in the locking position, and
FIG. 5 shows a corresponding section of the buckle in the release position.
DETAILED DESCRIPTION OF THE INVENTION WITH PARTICULAR REFERENCE TO THE
DRAWINGS
The buckle according to the invention is constructed of two interconnecting parts, i.e. one locked and one locking part, consisting of a locking tongue 1 and a locking device 2, respectively. The locking tongue 1 is normally attached to a belt strap and may, for example, be constructed with a slot (not shown) through which the belt strap runs and which redirects the belt strap between the safety belt hip strap and the chest strap as in the case of so called three-point belts. In the example shown the locking device is anchored to a fixed part of e.g. a vehicle, such as the floor or the propeller shaft tunnel by means of a pulling member 3 which in the example shown is constructed as a wire rope loop. This loop should be sufficiently rigid to support the locking device and flexible enough to adopt the desired direction when the buckle is being connected.
The locking device 2 is constructed of a housing 4 made e.g. of metal and having a channel shaped cross section, i.e. it has a
REFERENCES:
patent: 4069559 (1978-01-01), Weman
patent: 4096606 (1978-06-01), Stephenson
patent: 4182008 (1980-01-01), Pouget
patent: 4206533 (1980-06-01), Meiller
patent: 4353151 (1982-10-01), Ennerdal
Haglund Lennart
Johansson Sigvard
AB Stil-Industri
Mancene Gene
Schulze Kris R.
LandOfFree
Safety belt buckle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety belt buckle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety belt buckle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-408683