Trunks and hand-carried luggage – Hand luggage – With means to fasten the hand luggage in closed condition
Patent
1996-04-22
1999-04-20
Weaver, Sue A.
Trunks and hand-carried luggage
Hand luggage
With means to fasten the hand luggage in closed condition
190 28, 190122, 190125, 150119, 220213, A45C 504, B65D 4316, B62D 2510
Patent
active
058949143
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The present invention concerns an assembly comprising at least two parts that are moveable in relation to each other: a building with at least one door, a vehicle with doors, a boot and a bonnet, a container such as a trunk, suitcase, bag, etc.
It can also cover casings requiring high-quality closure: photographic, cinematic, video and other cameras. In a fairly elaborate version, it may cover sealed doors, security lock chambers, and the like.
Indeed, whatever the application, the invention allows two parts that are moveable in respect of each other, particularly hinged, to be connected in an extremely sturdy manner, so as to withstand the stresses imposed on these parts, systematically or occasionally, by the use of the assembly.
It is known in particular that luggage is often subject to impacts during handling in travel: it can fall (sometimes from quite high) or receive relatively violent impacts at the time of collisions between rail carriages, on aircraft landing, etc.
Impacts often have the effect of placing a stress on the two moveable parts, the body of the article of luggage and its lid, so as to separate them.
Since these two parts cooperate, in the closed position, by contact between rabbets, the latter are very resistant to perpendicular impact but the two parts are only held in the closed position by added mechanical elements that are independent of the rabbets themselves.
In general these elements comprise at least one pivoting part that has to cooperate with a fixed part, similar to the bolt of a lock in its keeper.
In other words, however strong the two parts are, they cannot withstand an opening effort other than through the mechanical parts connecting them.
For this reason, manufacturers have concentrated their efforts on these mechanical elements since it is easy to solve the problem of the sturdiness of the assembly itself.
For instance, articles of luggage are now made of very strong synthetic materials, shaped as two shells edged with metallic rabbets, and it is known that such luggage is capable of resisting very high pressure without the risk of crushing.
Some articles of luggage have a very comprehensive metal structure that makes the assembly even more rigid and strong.
But even these articles of luggage can open under the effect of a very low stress if they are fitted with rudimentary locks.
To specify the state of the art, we can cite: problem of a door or similar being forced by means of a tool inserted into a gap between two parts that are moveable in relation to each other, with a view to exerting a lever effect.
This solution consists of providing, between the two moveable parts, zigzag surfaces, that is, surfaces formed of teeth that are very numerous, very sloping (at least 45.degree.) and very close together so that there is no rectilinear part between two successive teeth that would allow a tool to be inserted and used as a lever so as to force apart the two moveable parts.
In this way, " . . . Owing to such a slope, even if a malicious person manages to insert any kind of tool into the gap separating the two moveable parts, the force he can exert with this tool does not produce a component tending to separate the two moveable parts." (Page 2, lines 31 to 35.)
The solution described in that document therefore concerns a problem that is quite different from that solved by the present invention.
SUMMARY OF THE INVENTION
Indeed, the present invention does not seek to prevent forcible opening but to resist relative movement between the two moveable parts, except exactly in the normal direction of separation, which is the same as in forcible opening.
In other words, an object produced in accordance with the invention can be forced by means of a tool constituting a lever since the parts in contact are large curves which, in this respect, are equivalent to conventional straight lines.
On the other hand, however, the large curves of an article in accordance with the invention offer considerable resistance to any violent effort coming fr
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Jubinov Societe Civile
Weaver Sue A.
LandOfFree
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