[0001] The invention refers to an improved double-mouth clip, with the peculiarity that
it clamps by both ends and presents a symmetrical structure, both longitudinally and
cross-sectionally.
[0002] The applicant of such clip is also the owner of a utility model which claims a clip
of the same type, i.e., formed by two symmetrical pieces with several cross-sectional
teeth laid on at the central area, so that such teeth match each other as a consequence
of the gap existing to allow such matching or insertion. Beginning from the last tooth,
the pieces extend along their ends divergently by their inner face, i.e., in the form
of a wedge. An outer slot is incorporated by each piece perpendicular to the teeth
and corresponding to the central area, in order to insert either the ends of a wire
spring or a strap, band or ring made of an elastomeric material, which forms the spring
which keeps the clip closed by its both ends, so that when one of the ends is pressed,
the other one opens, and vice versa.
[0003] The clip, although it incorporates a great number of advantages compared with the
traditional ones, presents the problem that, after a sustained use of it, one of the
pieces moves sideways with respect to the other one. In certain circumstances, both
pieces may become disengaged and, while it is easy to place them again in position,
it is very upsetting for the user. The clip claimed herein solves this problem satisfactorily
in an efficient and simple manner. For this purpose, it has been foreseen that each
piece incorporates between the last teeth of one of its ends a projection laid transversally
to such teeth, while on the last tooth of the opposite end it has been foreseen a
recess to house such projection so that when both pieces of the clip join, due to
the opposite laying, the projections of one side will be housed inside the recesses
of the other, and vice versa, thereby producing a cross-sectional interlocking of
both pieces, preventing them to move sideways.
[0004] In an effort to better understand the main characteristics of the invention, a set
of drawings is attached to this description forming an integral part of it and where,
as an illustration and without limitation, the following has been represented:
Figure 1 shoes a perspective view of one of the pieces of the clip which is the object
of this invention. The other pieces are exactly symmetrical to the one represented.
Figure 2 shows a longitudinal section of the clip where the elastic connection between
both pieces is achieved by means of a band made of an elastomeric material.
[0005] The numerical references corresponding to such figures correspond to the following
parts and elements:
1.- Symmetrical pieces of the clip
2.- Cross-sectional teeth of the pieces (1)
3.- Outer crossOsectional slots of the pieces (1)
4.- Elastomeric band
5.- Wedges or end sections of the pieces (1)
6.- Grooves or low-reliefs of the pieces (1)
7.- Projections of the pieces (1)
8.- Recesses of the pieces (1)
   As it can be seen in the figures, the clip which is the object of this invention
is formed by two symmetrical elements (1) each one of which conventionally includes
in its central area, and matching the inner face, a series of cross-sectional teeth
(2), while the outer face incorporates one or more cross-sectional slots (3) to house
and position the element that will keep both pieces joined each other. Such element
nay be a wire spring or a band made of elastomeric material (4) as it can be appreciated
in Figure 2.
[0006] From the last tooth of both ends, the inner face of the element (1) is projected
divergently, i.e., as a wedge (5) determining the clamping sections for the opening
of the clip. Such sections incorporate on their outer face grooves or low-reliefs
(6) intended to avoid slippages.
[0007] Each piece (1) incorporates between the last teeth of one end a projection (7) transversally
laid on with respect to such teeth. Such projections (7) match a recess or housing
(8) foreseen at the last tooth of the opposite end.
[0008] In accordance with the structure of the piece herein described, when both wedge ends
(5) are pressed, the space between the teeth of such area will be clear, and the pressed
end will serve as a balance pole. Therefore, the clip will be kept closed at the two
central areas included between an imaginary cross-sectional intermediate line and
the adjacent ends opposite to the wedges (5), so that when pressing one or the other
end pair of clips (5), the opposite clamp will be opened, as indicated in this description.
[0009] The outer surface opposite to the toothed area (2) may be slightly concave with parallel
grooves near the ends, thereby facilitating the clip gripping by the user.
1. Improved double-mouth clip, formed by too symmetrical elements with matching teeth
in the major part of the inner face. The outmost teeth determine a pair of end wedges
actuated by the user to open the clamp determined at the opposite end. The clamp is
included within an imaginary cross-sectional central line and the last tooth of the
relevant area; it also incorporates a wire spring or cross-sectional band which keeps
both clamps formed by the end wedge pairs constantly closed. It is essentially characterized
in that each of both elements forming the clip itself incorporates between the last
two teeth of one of the outmost areas a cross-sectional central projection, while
the last tooth of the opposite area incorporates a matching recess or housing, so
that when the projections and recesses of both clip elements are coupled, they determine
a mean to prevent the sideways movement. of one element with respect to the other.