Buckles – buttons – clasps – etc. – Including readily dissociable fastener having numerous,...
Patent
1984-04-16
1987-07-21
Peshock, Robert
Buckles, buttons, clasps, etc.
Including readily dissociable fastener having numerous,...
24449, A44B 1800
Patent
active
046808388
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
1. Background of the Invention
The invention relates to means for releasably connecting two parts, one of said parts forming a female part having a recess, cavity or the like and the other one of said parts forming a male part having a counterpart adapted to be inserted into said recess, cavity or the like or to be movable therein.
2. Description of the Prior Art
A dowel-like socket pin has, for example, been described in the DE-OS No. 1 945 377 which is provided with a multitude of teeth which are arranged over its circumference and project radially or towards the head of the fastening element from its outer surface. The corresponding bore has smooth walls. The fastening element is driven into the bore, the teeth thereby resting against the walls of the bore and being braced therein, when exposed to tensile forces. This connection is designed as an unreleasable connection which is only releasable under excessive stress, whereby one of the two parts is damaged and can no longer be repaired.
SUMMARY OF THE INVENTION
It is, therefore, the object of this invention to provide means forming a connection between two parts, when such parts are moved, such connection offering great resistance to the back movement of the two parts and at the same time eliminating the adverse effect of damaging said means, when overcoming said resistance, so that said connection is releasable and restorable.
According to the invention, this is achieved by arranging elastic elements extending substantially vertically to the moving direction on at least part of the faces of said female part or of said male part extending parallel to the moving direction, and by adapting each counterface of the male part or of the female part extending also parallel to the moving direction to be uneven, the elastic elements being a layer of adjacently arranged bristles, short fibers or the like, the lengths of said bristles being at least greater than the distance between the face provided with elastic elements and the face of contact of the raised areas on the uneven counterface.
The means according to the invention can be applied with any kind of connection between two parts. The two parts may be entirely separable, e.g. when a plug connection is provided between them. They may, however, not be entirely separable from each other so that a limited sliding or rotational movement is possible. The elastic elements, which are bristles or the like, may be made of any suitable material and have different characteristics. Both depends on the kind of parts which are to be connected and on the degree of rigidity of the connection. A person of skill in the art will have to choose the suitable criteria for the bristles depending on the use of the connection. Such criteria are the material, the elasticity, the number of bristles per surface unit, the size of the surface on which the bristles have to be arranged, the kind and size of uneven areas of the counterface etc.
When joining two entirely separate parts, e.g. a plug connection by means of fastening bolts and corresponding recesses, groove and tongue etc., the bristles or the like are inclined backwards, and their free ends are pressed against the uneven counterface. Thereby they penetrate into the lowered areas of the counterface and at the beginning of the back movement, they brace against the side faces of the raised areas whereby the close arrangement of such areas prevent an escape of the bristles or the like. When applying force, the inclined bristles or the like are compressed, thus, producing the resistance against pull-out forces. When applying increased force, the orientation of the bristles or the like is suddenly changed. They relax because of their elasticity, thereby moving in respect of the present moving direction into the same inclined position as during the inserting movement. During the further back movement, the resistance to pull-out forces is the same as the resistance to push-in forces and, hence, only the same small amount of force is required now. The elast
REFERENCES:
patent: 1819225 (1931-08-01), Burman
patent: 2678228 (1954-05-01), Gerhardt
patent: 2959832 (1960-11-01), Baermann
patent: 3128476 (1964-04-01), Lash
patent: 3128514 (1964-04-01), Parker et al.
patent: 3197169 (1965-07-01), Burrows
patent: 3913928 (1975-10-01), Yamaguchi
patent: 3927443 (1975-12-01), Brumlik
patent: 4054337 (1977-10-01), Matt et al.
patent: 4271566 (1981-06-01), Perina
Peshock Robert
Stone Cary E.
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