[0001] The present invention relates to a flask for liquids, such as, for instance, bath
soap, shampoo and the like. In practice, the closure of such flasks frequently presents
difficulties in that a relatively laborious manner of opening and closing is involved,
through, for instance, a screw cap, or in that, for instance in the case of a snap
closure, after pouring out a particular amount of liquid, leakage arises easily.
[0002] The object of the invention is to provide a flask which can be opened and closed
in a very simple manner and in which leakage is avoided virtually completely.
[0003] To achieve this object, according to the invention, the flask comprises a liquid
holder and a screening cap fixable thereon with a pouring opening and with a clip-shaped
closure therefor, which clip-shaped closure comprises a first clip element and a second
clip element which at one end is hingedly connected to the first clip element and
at the other end is hingedly connected to the screening cap, which second clip element
is provided with a closing element which fits into the pouring opening, while the
clip-shaped closure can be brought from a position closing the pouring opening to
a position clearing the pouring opening and vice versa by moving the first clip element
in the direction away from the liquid holder, and towards the liquid holder, respectively.
[0004] In a first embodiment, the first clip element is relatively rigid and, at the end
remote from the hinged connection with the second clip element, is hingedly connected
to the screening cap, and the second clip element is more flexible, while the second
clip element both in the first and in the second position is substantially free from
bending forces, and the clip-shaped closure can be brought from the first to the second
position and vice versa while bending the second clip element.
[0005] In a second embodiment, both clip elements are relatively rigid, and the first clip
element, at the end remote from the hinged connection with the second clip element,
is detachably connected to the screening cap, while after breaking the connection
between the first clip element and the screening cap, the clip-shaped closure is movable
away from the liquid holder, and the pouring opening is cleared, while the pouring
opening can be closed by moving the clip-shaped closure towards the liquid holder
and securing the relevant end of the first clip element on the screening cap. Preferably,
in the hinge joints between the second clip element and the screening cap and the
first clip element, respectively, a bias is provided, so that after releasing the
connection between the first clip element and the screening cap, the two clip elements
move directly in the direction away from the liquid holder.
[0006] From a viewpoint of costs, it is favorable when the clip-shaped closure is manufactured
as one whole from plastic and the hinged connections are obtained by deformation on
folding seams.
[0007] In order to prevent, when pouring out liquid from the liquid holder, the screening
cap from being filled in its entirety, which readily gives rise to leakage at the
connection of the screening cap to the liquid holder, there is provided in the screening
cap an outflow space which is in communication with the pouring opening and which,
when the screening cap is fitted on the liquid holder, connects to an outflow opening
of this liquid holder, which is formed by a spout.
[0008] In order to readily obtain, upon fitting the screening cap on the liquid holder,
a proper connection of the outflow space to the pouring opening, the outflow space
is bounded by an edge provided with lips, limiting the outflow opening. In particular,
the lips fit into the outflow opening of the spout.
[0009] To prevent the screening cap from being removed from the liquid holder in normal
use, an annular element is present in the screening cap which, when the screening
cap is fitted on the liquid holder, engages the spout under an edge on the outer side
of the spout.
[0010] The invention will now be further explained with reference to the accompanying drawings.
In the drawings:
Fig. 1 schematically shows a cross section through the flask according to the invention;
Fig. 2 schematically shows a longitudinal section through this flask;
Fig. 3 schematically shows the clip-shaped closure therein;
Fig. 4 shows in perspective the screening cap; and
Fig. 5 shows a further exemplary embodiment of a clip-shaped closure according to
the invention.
[0011] In the drawings, corresponding parts are designated by the same reference numerals.
[0012] The flask in Figs. 1 and 2 comprises a liquid holder 1, and a screening cap 2, securable
thereon, with a pouring opening 3 and with a clip-shaped closure 4 therefor. The clip-shaped
closure 4 comprises a first, relatively rigid clip element 5 which is hingedly connected
to the screening cap 2, and a second, more flexible clip element 6, which at one end
is hingedly connected to the first clip element 5 and at the other end is hingedly
connected to the screening cap 2. The second clip element 6 comprises a closing element
7, which fits into the pouring opening 3.
[0013] In the exemplary embodiment shown, the clip-shaped closure is manufactured as one
whole from plastic. The hinged connections therein are then formed by folding seams.
The first clip element 5 has, as is indicated in Fig. 4, a curved shape and is thus
relatively rigid. The clip-shaped closure 4 has a part 8 fixedly connectable to the
screening cap 2. The transition of this part 8 to the first clip element 5 is formed
by a folding seam 9. The first clip element 5 is capable of hinging about this folding
seam 9. The second clip element 6 consists of a flat strip and thus forms a flexible
part of the clip-shaped closure 4 with respect to the first clip element 5. The transition
between the two clip elements is formed by a folding seam 10. The clip-shaped closure
4 further has a part 11 fixedly connectable to the upper part of the screening cap
2. This part is fixedly connected to the screening cap 2 via a run-through element
11'. The transition from the part 11 to the second clip element 6 is formed by a folding
seam 12. The second clip element 6 is capable of hinging about the folding seams 10
and 12. At the end of the first clip element 5 where it is hingedly connected to the
second clip element 6, an outwardly projecting part 13 is arranged to enable the first
clip element 5 to be moved upwards therewith.
[0014] In a first position, in which the pouring opening 3 is closed by the closing element
7, the second clip element is in a virtually unstressed condition. This is also the
case in a second position, in which the flask is opened and the first clip element
5 has reached its extreme position, as represented in Fig. 3 by chain-dotted lines.
When the clip-shaped closure 4 is moved from the first to the second position or vice
versa, this can only be done while bending the second clip element 6, as indicated
in Fig. 3 by the broken lines. When the part 13 is moved up, at some point the clip-shaped
closure 4 will swing to its second position and the flask is opened for use. When
after use the part 13 is moved down, the clip-shaped closure 4 will at some point
swing to its first position and the flask will be closed.
[0015] In the screening cap, an outflow space 14 is present, which is in communication with
the pouring opening 3 and which, when the screening cap 2 is fitted on the liquid
holder 1, connects to an outflow opening of the liquid holder 1, formed by a spout
16. The outflow space 14 is bounded by an edge 18 provided with lips 17. The lips
17 fit into the spout 16. The outflow space 14 is further bounded entirely by the
edge 18 fully surrounding the outflow space 14 and extending up against the underside
of the screening cap 2.
[0016] Further, in the screening cap 2, an annular element 19 is present, which, when the
screening cap is fitted on the liquid holder, engages under an edge 20 on the outer
side of the spout 16. Because the transition of the liquid holder 1 to the spout 16,
which, for that matter, has a circular cross section, has an elliptical shape, the
annular element 19 too is elliptical in shape. The annular element 19 is connected
with the underside of the screening cap 2 through strips 21. The screening cap, the
edge 18 with the lips 17, and the strips 21 with the annular element 19 are manufactured
as one whole from plastic.
[0017] Fig. 5 shows a second embodiment of a clip-shaped closure 4. In this embodiment,
the two clip elements 5 and 6 are relatively rigid and the connection of the first
clip element 5 to the screening cap 2 is detachable. For that purpose, the relevant
end 22 of the first clip element 5 is hook-shaped and can be snapped into a recess
23 in the screening cap 2. In this embodiment too, the clip-shaped closure is preferably
manufactured as one whole. In the hinge joints 10 and 12, a certain bias then acts
very favorably. When in that case the end 22 is removed from the recess 23, the clip-shaped
closure swings to the position represented in Fig. 5 and the pouring opening is cleared.
When the first clip element 5 is moved down, i.e., in the direction of the liquid
holder 1, the second clip element 6, by way of the closing element 7, closes the pouring
opening 3 and the flask is held in this closed position by clicking the end 22 into
the recess 23.
[0018] The invention is not limited to the embodiments presented here, but comprises all
kinds of modifications thereof, naturally insofar as they fall within the scope of
protection of the following claims.
1. A flask comprising a liquid holder and a screening cap, fixable thereon, with a pouring
opening and with a clip-shaped closure therefor, which clip-shaped closure comprises
a first clip element, and a second clip element which at one end is hingedly connected
to the first clip element and at the other end is hingedly connected to the screening
cap, which second clip element is provided with a closing element which fits into
the pouring opening, while the clip-shaped closure can be brought from a position
closing the pouring opening to a position clearing the pouring opening and vice versa
by moving the first clip element in the direction away from the liquid holder, and
towards the liquid holder, respectively.
2. A flask according to claim 1, characterized in that the first clip element is relatively
rigid and, at the end remote from the hinged connection with the second clip element,
is hingedly connected to the screening cap, and the second clip element is more flexible,
while the second clip element both in the first and in the second position is substantially
free from bending forces and the clip-shaped closure can be brought from the first
to the second position and vice versa while bending the second clip element.
3. A flask according to claim 1, characterized in that both clip elements are relatively
rigid, and the first clip element, at the end remote from the hinged connection with
the second clip element, is detachably connected to the screening cap, while after
breaking the connection between the first clip element and the screening cap, the
clip-shaped closure is movable away from the liquid holder and the pouring opening
is cleared, while the pouring opening can be closed by moving the clip-shaped closure
towards the liquid holder and securing the relevant end of the first clip element
on the screening cap.
4. A flask according to claim 3, characterized in that in the hinged connections between
the second clip element and, respectively, the screening cap and the first clip element,
a bias is provided, so that after releasing the connection between the first clip
element and the screening cap, the two clip elements move directly in the direction
away from the liquid holder.
5. A flask according to any one of the preceding claims, characterized in that the clip-shaped
closure is manufactured as one whole from plastic, and the hinged connections are
obtained by deformation on folding seams.
6. A flask according to any one of the preceding claims, characterized in that in the
screening cap an outflow space is present, which is in communication with the pouring
opening and which, when the screening cap is fitted on the liquid holder, connects
to an outflow opening of this liquid holder, formed by a spout.
7. A flask according to claim 6, characterized in that the outflow space is bounded by
an edge provided with lips.
8. A flask according to claim 7, characterized in that the lips fit into the outflow
opening of the spout.
9. A flask according to any one of claims 6-8, characterized in that in the screening
cap an annular element is present which, when the screening cap is fitted on the liquid
holder, engages the spout under an edge on the outer side of the spout.