U.S. patent application number 10/545628 was filed with the patent office on 2006-10-19 for closing cap for a container.
Invention is credited to Udo Suffa.
Application Number | 20060231518 10/545628 |
Document ID | / |
Family ID | 32991929 |
Filed Date | 2006-10-19 |
United States Patent
Application |
20060231518 |
Kind Code |
A1 |
Suffa; Udo |
October 19, 2006 |
Closing cap for a container
Abstract
Closure cap (1), produced by a plastics injection molding
process, for a container (5) such as a bottle, has a closure lower
part (2) and a closure cover (3) joined integrally to it by way of
a hinged joint. The cover (3) pivots by a hinge (8) and latches in
place in an open state to a closure lower part back wall (12). A
latching projection (26) also is formed on this wall. A latching
edge (27) on the closure cover (3), which latching edge, in the
latching state, is overrun by the latching edge (27), is positioned
to engage beneath the latching projection (26). An extension of the
latching projection (26) intersects a vertical (V-V) through the
hinge axis. The latching projection (26) is formed so as to yield
during an overrunning in the pivoting direction.
Inventors: |
Suffa; Udo; (Gefell,
DE) |
Correspondence
Address: |
Martin A Farber
866 United Nations Plaza
Suite 473
New York
NY
10017
US
|
Family ID: |
32991929 |
Appl. No.: |
10/545628 |
Filed: |
March 8, 2004 |
PCT Filed: |
March 8, 2004 |
PCT NO: |
PCT/EP04/50271 |
371 Date: |
March 17, 2006 |
Current U.S.
Class: |
215/237 ;
220/254.5; 222/556 |
Current CPC
Class: |
B65D 47/0838 20130101;
B65D 2251/1008 20130101 |
Class at
Publication: |
215/237 ;
222/556; 220/254.5 |
International
Class: |
B65D 39/00 20060101
B65D039/00; B65D 51/04 20060101 B65D051/04; B65D 47/00 20060101
B65D047/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 13, 2003 |
DE |
10310915.3 |
Sep 12, 2003 |
DE |
10342407.5 |
Claims
1-13. (canceled)
14. Closure cap (1), suitable for production by a plastics
injection molding process, for a container (5) including a bottle,
the closure cap comprising a closure lower part (2) and a closure
cover (3) which are joined integrally by a joint having a hinge,
the closure cover (3) being pivotable by the hinge (8) and being
latched in place in an open state to a back wall (12) of the
closure lower part (2); wherein the closure cap further comprises a
latching projection (26) formed on the back wall, and a latching
edge (27) located on the closure cover (3); wherein the latching
protection (26), in a latching state, is overrun by the latching
edge (27), and the latching edge (27) is positioned such that it
engages beneath the latching projection (26); wherein an extension
of the latching projection (26), in the direction of its protrusion
(z), as seen in cross section, intersects a vertical (V-V) through
the hinge axis (x-x) below the hinge axis (x-x); and wherein the
latching projection (26) is formed so as to yield during the
overrunning in the pivoting direction (arrow y) of the latching
edge (27) of the closure cover (3).
15. Closure cap according to claim 14, wherein the latching edge
(27) is formed closed to the pivot axis.
16. Closure cap according to claim 14, wherein the boundary edge
(15), associated with the latching projection (26) of the closure
cover (3), is cut open in the axial direction of the hinge (8) to
form the latching edge (27).
17. Closure cap according to claim 16, wherein the latching
projection (26) is formed as a resilient tongue.
18. Closure cap according to claim 16, wherein the latching
projection (26) is rooted in the axial region of the hinge (8).
19. Closure cap according to claim 14, wherein the hinge axis (x-x)
is disposed in the plane region of a closure top (19) of the
closure lower part (2).
20. Closure cap according to claim 14, wherein a formation of the
latching projection (26) enables its surface to complement the
hinge region.
21. Closure cap according to claim 16, wherein the latching
projection (26), located axially in front of the hinge (8), is
provided in a pair.
22. Closure cap according to claim 14, wherein the latching edge
(27) is visible in a side view of the closed closure cap (1).
23. Closure cap according to claim 14, wherein the latching edge
(27), when the closed closure cap (1) is seen in plan view, is
integrated in a peripheral boundary line (14) of the closure
cap.
24. Closure cap according to claim 16, wherein the latching
projection (26) is formed centrally between two hinges (8, 8').
25. Closure cap according to claim 14, wherein the latching
projection (26) has a rounded edge contour (33).
26. Closure cap according to claim 14, wherein the latching
projection (26) narrows in terms of cross section toward its free
edge region.
Description
[0001] The invention relates to a closure cap, produced by the
plastics injection molding process, for a container such as a
bottle, having a closure lower part and a closure cover joined
integrally to it by way of a hinged joint, the closure cover being
pivotable by means of a hinge and being latched in place in the
open state to a closure lower part back wall, a latching projection
also being formed on this wall, and a latching edge on the closure
cover, which latching edge, in the latching state, overrun by the
latching edge, is positioned such that it engages beneath the
latching projection.
[0002] A closure cap of this type is known on commercially
available containers for dispensing viscous food substances, such
as honey. The latched retaining of the closure cover in the open
state not only allows visually perfect monitoring of the emerging
stream of substance with respect to a target destination at a lower
level but also at the same time prevents this stream from passing
onto the closure cover. This keeps dispensers of this type "clean".
A lateral latching edge of the closure cover is used as latching
retaining means, which latching edge interacts with a latching
projection on the back wall of the closure lower part. The latching
projection is a nipple or strip which extends axially parallel to
the hinge and can be overrun by the latching edge of the closure
cover, which can ultimately engage beneath it. The obstacle
presented is overcome in this way by moderate displacement of the
latch-forming elements and also under a certain shearing action.
The closure cap, at least on the hinge side, moves into a niche in
the closure lower part back wall, with the latching projection also
located in the niche space, on side flanks. The hinge axis of the
hinge, which is realized as a film hinge, is located on the top
side of an indentation in the closure cap which is located on the
end side and accommodates the closure cover in a form-fitting
manner in the closed state. The hinge is offset with respect
thereto, set back from the general peripheral boundary line of the
closure. This interferes with the exterior of a dispenser of this
type, which is formed as a tabletop device.
[0003] Stamped formations which secure the open position of the
closure cover in a latching manner are also disclosed in the
literature references cited below.
[0004] For example, DE-U 76 31 199 discloses a closure cap in which
a latching projection and a free latching edge of closure cover and
closure lower part interact so as to move beyond a dead center
position. The closure cover is in this case retained in the open
state. The open position is located at 180.degree..
[0005] From GB 2 076 378 A, a closure cap is disclosed in which a
latching projection, close to the hinge, of the closure cover
rollingly passes over a cam of the closure lower part. It is in
this case held open more by means of a frictional lock. The open
position of the closure cover is only slight, at less than
90.degree.. The opening of a dispensing nipple is directed outward,
located approximately in the angle bisector.
[0006] Finally, DE 100 26 099 A1 shows a closure cap in which a
latching projection of the closure lower part and a latching edge,
which is likewise realized as a free latching projection, of the
closure cover retain the latter in the open state. In this case,
both latching elements protrude perpendicularly with respect to the
horizontally oriented component which in each case includes
them.
[0007] It is an object of the invention to further develop a
closure cap of the generic type in a structurally simple and
operationally reliable way.
[0008] This object is achieved first and foremost with a closure
cap having the features of claim 1 in which it is provided that
a--possibly imaginary--extension of the latching projection, in the
direction in which it protrudes, as seen in cross section,
intersects a vertical through the hinge axis below the hinge axis,
and that the latching projection is formed so as to yield during
the overrunning in the pivoting direction of the closure cover.
[0009] As a result of a configuration of this type, a closure cap
of the generic type having an increased usefulness is achieved. The
overrunning on the part of the latching retaining elements takes
place in a way which is gentle on these elements. No shearing
action occurs. All this is of benefit to the service life of a
corresponding dispenser. The geometry employed allows the closure
cover to move back a long way and to partially dip away as it
enters the end stage. Moreover, if desired, the latching even
permits positioning very close to the axis. The latching
projection, which projects into the orbiting path portion of the
latching edge, is subjected to load in the free end region, i.e. in
a zone in which the highest resilience is present. During the
overrunning in the pivoting direction of the closure cover, first
of all the latching projection yields. When the overrunning has
ended, the latching edge is in a position engaging beneath the
latching projection. If the latching is to be eliminated, this once
again takes place counter to the resistance of the latching
projection, with yielding pivoting in the opposite direction. The
corresponding reversal is spatially compensated for by a free space
between the back of the closure cover, which is close to the axis
and moves into a retained position, and the niche which receives it
there.
[0010] The subjects of the further claims are explained below with
reference to the subject matter of claim 1, but may also be of
importance in their independent formulation. For example, it is
further provided that the latching edge is formed close to the
pivot axis. This means the hinge axis. The orbiting path portion is
correspondingly short. Furthermore, the invention proposes that the
boundary edge, associated with the latching projection, of the
closure cover is cut open in the axial direction of the hinge to
form the latching edge. In this case, in practice the starting
point can be a shell-like closure cover, whereof the region close
to the axis simply acquires a local notch. The polydirectionality
which is in any case present at the wall of the closure cover
imparts a high internal stability to the latching edge despite a
possibly small wall thickness. By contrast, the latching
projection, which is in the form of a integrally molded part, of
the closure lower part is formed as a resilient tongue as has
already been indicated above. The latching projection is
advantageously rooted in the axial region of the hinge. This
results in welcome localisation of the latching on a functional
region which is in any case standard, namely the hinge.
Furthermore, it is provided that the hinge axis is disposed in the
plane region of a closure top of the closure lower part. It is
therefore flush with the base, which catches beneath the closure
cover, of the indentation which receives the closure cover in, as
it were, a positively locking manner and laterally continues into
plateaus which run level with the top side of the closure cover.
Accordingly, the latching projection may be formed in such a way
that its surface complements the hinge region. Although just one
latching projection in the axial region of the hinge is sufficient,
by way of example in the case of relatively large containers, it is
also possible for the latching projection, located axially in front
of the hinge, to be formed in a pair. In part for technical reasons
but mainly for visual appearance, the latching edge is visible in a
side view of the closed closure cap. It will quickly become clear
to the user that in combination with the latching projection which
protrudes slightly downward, there is a functional region which
will induce him to try it out, namely that of the retaining
securing. The situation is different when the device is seen in
plan view. The latching edge, when the closed closure cap is seen
in plan view, is integrated in a peripheral boundary line of the
closure. This means that on inspection in the usual way, a more
continuous nature will be to the fore. Furthermore, the invention
proposes that the latching projection is formed centrally between
two hinges. This strengthens the entire jointed zone. The coaxially
disposed hinges enclose the region which carries the latching
projection like a window. This proves to have a stabilizing effect
with respect to the latching mechanics. Furthermore, it is
advantageous for the latching projection to have a rounded edge
contour. This may be a line in the form of an arc of a circle,
comprising approximately a semicircle or at least a segment. In
this case, it is provided that the latching projection narrows in
terms of cross section toward the free boundary edge region. This
results in the formation of a clearly perceptible clicking noise
which makes it possible to acoustically recognize or indicates that
the open position has been reached. The wedge-shaped formation in
combination with the rounding permits the formation of a latching
element which has a whip-like action. This leads to a sudden
blocking release at the zenith of the rounded edge contour. In this
case, the closure lower part in practice acts as a reverberation
body.
[0011] The subject matter of the invention is explained in more
detail below on the basis of an exemplary embodiment illustrated in
the drawings, in which:
[0012] FIG. 1 shows, in front view, the closure cap, produced by
the plastics injection molding process, which the closure cover
closed, together with associated container, in approximately its
natural size,
[0013] FIG. 2 shows a corresponding side view,
[0014] FIG. 3 shows a plan view of FIG. 1,
[0015] FIG. 4 shows the closure cap in isolated perspective
illustration, in the demolding position or unlatched open position
of the closure cover, which is realized as a snap lid,
[0016] FIG. 5 shows the section on line V-V in FIG. 1, but without
illustrating the container,
[0017] FIG. 6 shows a vertical section through the hinge region of
the closure cap in the state according to FIG. 4, further
enlarged,
[0018] FIG. 7 shows a vertical section corresponding to FIG. 6,
embodying the latching which has occurred between closure lower
part and the closure cover which is molded integrally on it in a
pivoting manner,
[0019] FIG. 8 shows in, isolated perspective illustration, the
closure cap, in the demolding position or unlatched open position
of the closure cover, realized as a pivoting cover, representing a
variant,
[0020] FIG. 9 shows a corresponding side view,
[0021] FIG. 10 shows the plan view onto FIG. 9, but turned through
180.degree.,
[0022] FIG. 11 shows a vertical section on line XI-XI in FIG. 10
passing through the hinge region of the closure cap, in the state
according to FIG. 8, further enlarged,
[0023] FIG. 12 shows a sectional illustration corresponding to FIG.
11, but showing the latched pivoted-back position of the closure
cover (cf. FIG. 13), and
[0024] FIG. 13 shows the rear view of the closure cap, representing
the state according to FIG. 12.
[0025] The closure cap 1 illustrated in the drawing is produced as
a single piece using the plastics injection molding process. It
consists, for example, of PP. The demolding position is shown in
FIGS. 4 and 6.
[0026] Components of the closure cap 1 include a closure lower part
2 and a closure cover 3 which is pivotably molded onto it, as well
as means of a latching mechanism 4, which has a snap-action.
[0027] The closure lower part 2 also includes means for securing it
to a container 5. The container 5 is a bottle. The contents of this
bottle can be dispensed via a stopper-controlled passage-opening 6
in the closure cap 1. This dispensing takes place with the
container turned upside down, if appropriate together with the
container 5 being squeezed so as to displace its contents. The
container at least in part has wall parts of collapsible
strength.
[0028] A stopper 7 is located on the inner side of the closure
cover 3, specifically in an identical pivoting position. The
stopper 7 is a hollow stopper. The operational pivoting is defined
by a hinge 8, constituting a pivot axis for the closure cover 3.
The geometric hinge axis is denoted by x-x and is horizontal.
[0029] The hinge 8, configured as a film hinge, represents the
connecting bridge between the parts 2 and 3 which are
injection-molded to one another. The desired jointed nature is
based on a linear reduction in the material thickness in the hinge
region. During closing, the closure cover 3 moves into a horizontal
indentation 9 of matching contour. This indentation is located on
the head part of the closure lower part 2. On either side of the
horizontal, the head part merges into a plateau 10.
[0030] Indentation 8 and plateaus 9 in cross-sectional terms impart
to the closure lower part 2, a substantially elongate
configuration, with slightly curved wide sides, namely a front wall
11 remote from the hinge and a back wall 12 close to the hinge. The
two end walls 13 may likewise be slightly convexly curved or, as
illustrated, may be flat when seen in cross section.
[0031] The common peripheral boundary line of the closure cap 1,
formed by the periphery of the plateaus 10 and the open ends of the
indentation 9, is denoted by 14. Reference is made in this context
to FIG. 3.
[0032] The horizontal cross-sectional form of the container 5, as
shown in the drawings, is substantially matched to the
cross-sectional configuration of the closure cap 1 which has been
described.
[0033] In the closed position, the top side of the closure cover 3
ends flush with the top side of the two plateaus 10, partly with a
view to achieving a bottle which can be stood on its head.
[0034] The closure cover 3 is of shell-like configuration. It has a
periphery which drops more or less steeply or in rounded form. The
corresponding boundary edge carries as a whole the reference
numeral 15.
[0035] The closable passage-opening 6 is realized at a raised,
short connection stub 16 in the base of the indentation 9. This
connection piece projects freely into the region of the indentation
9. For sealing purposes, the stopper 7 has an annular collar 17 on
the lateral wall side, which interacts with a corresponding annular
groove 18 in the pot-shaped connection piece 16. This formation
simultaneously functions as a cover closure latch.
[0036] The closure lower part 2 is also formed for anchoring with a
view to being connected to the container 5. Reference is made to
FIG. 5, from which it can be seen that a holding means 20 starts
from the inner side of the underside of a top 19 of the closure cap
1. The holding means 20 is configured in the form of a ring 21 in
a, as it were, "floating" position in the interior of the cap. The
band of this ring is able to yield radially. As a result of elastic
restoring, making use of a corresponding length reserve of the ring
band, the ring 21 snaps under a horizontal flank of a projection,
which is nose-shaped in cross section, on the neck of the container
5 (these details are not shown). The ring 21 is also secured by way
of vertical arms 22, which likewise start from the underside of the
horizontal top 19 of the closure lower part 2. Further details of
this docking means can be found in DE 198 24 714 A1. The disclosure
content of this application is hereby incorporated in its entirety,
partly with a view to incorporating features of these documents in
the claims of the present application.
[0037] The end edge of the lateral wall of the closure lower part
2, which is fundamentally not round, can be utilized with a view to
rotational securing of the closure cap 1 with respect to the
container 5. The latter constitutes the correspondingly inserted,
rotationally securing counterpart. Furthermore, a centering
projection 23 leads from the inner side of the top 19. The edge of
this centering projection 23 is rounded. This leads to progressive,
position-correcting entry of this centering projection 23 into the
corresponding neck opening of the container 5.
[0038] All that is required to open up the passage-opening is for
the closure cover 3 to be deliberately pivoted up. This leads to
the closure force between annual collar 17 and annular groove 18
being overcome. To facilitate handling, the boundary edge 15,
located at a distance from the hinge 8, of the shell-like closure
cover 3 stands free such that it is possible to engage beneath it.
This is achieved by a recessed grip 24, realized in this region, in
the wall of the closure lower part 2. The recessed grip 24 is
located in the front wall 11 and extends as a hollow into the base
of the indentation 9. The lower, slightly exposed zone of the
boundary edge 15 is denoted by 25.
[0039] The closure cover 3 can be moved into the out-of-the way
position apparent from FIG. 7. This goes well beyond 180.degree.
and in the exemplary embodiment includes an angle of approx.
120.degree.. It may even extend into a position completely
concealed at the closure lower part 2.
[0040] In the fully opened state, the closure cover 3 is retained
in position, in a manner which can be overcome, by the latching
mechanism 4. The corresponding retaining results to the region of
the closure lower part back wall 12.
[0041] The core piece of the corresponding latching mechanism 4 is
a latching projection 26 formed on the wall, more specifically the
closure lower part back wall 12. This latching projection 26 is
realized as a resilient tongue and in terms of thickness is
correspondingly matched to the surrounding wall material.
[0042] As can be gathered from the drawing, the latching projection
26 is rooted in the axial region of the hinge 8, which constitutes
the pivot axis, between closure lower part 2 and closure cover
3.
[0043] The hinge axis x-x extends in the plane region of the top 19
of the closure lower part 2. Specifically, the horizontal base of
the indentation 9 is flush with the hinge axis x-x. The
hinge-forming material narrows in the direction of the said hinge
axis x-x. It decreases in a wedge formation to a fraction of the
thickness of the respective wall.
[0044] Taking account of the substantially vertically descending
lateral wall of the closure lower part 2, the closure projection
26, which projects outward and downward in a sloping manner,
includes an angle .alpha. of approximately 45.degree. with respect
to this lateral wall.
[0045] The mating latching means which interacts with the latching
projection 26 is a latching edge 27 on the closure cover 3. The
latching edge 27 extends in the vicinity of the pivot axis, i.e.
the hinge axis x-x. Its direct spacing (cf. FIG. 6) is
significantly shorter than the direct spacing between the free end
of the latching projection 26 and the reference point mentioned
above.
[0046] In this respect, the latching edge 27, in the given pivoting
range, moves along an orbiting path portion 28 which lies spatially
within the cross section of the latching projection 26. The
overcomable latchability is obtained from this. The orbiting path
portion 28 has its center point in the hinge axis x-x.
[0047] Since the latching edge 27 is formed close to the pivot
axis, the latching mechanism 4 is extremely compact.
[0048] To form the said latching edge 27, the closure cover 3 is
cut open in the axial direction of the hinge 8 at its hinge-side
latching edge 15, specifically in such a manner that gaps which are
deepened with respect to the end of the boundary edge 15 are
formed, and when actuated these gaps move over the latching
projection 26. The gaps can be seen particularly clearly from FIG.
4.
[0049] Corresponding to the number of these latching gaps or
latching edges 27, two latching projections 26 are also formed. The
said latching projections 26 are shaped in such a way that their
surface complements the hinge region so that they can move
autonomously. Accordingly, the latching projection 26, located
axially in front of the hinge 8, is provided in a pair.
[0050] In a modification, the hinge 8 could in practice, divided in
two, also be located on the outer side between a central latching
projection 26, specifically, of course with a corresponding
modification to the mating latching means, on the closure cover
3.
[0051] In one way or another, as the closure cover 3 moves back
into the intended latched concealed position, the latching
projection 26 is overrun by the latching edge 27 until, as
illustrated in FIG. 7, the latching edge 27 engages beneath the
latching projection 26. During this operation, the latching
projection 26 yields in the pivoting direction of the closure cover
3 until the obstacle which it presents is completely overcome. The
geometry described is also characterized in that a--possibly
imaginary--extension of the latching projection 26, in the
direction of protrusion z, as seen in the cross-sectional
illustration of FIG. 7, intersects a vertical V-V passing through
the hinge axis x-x, below the hinge axis x-x, the latching
projection 26, as has been mentioned, being overrun in a yielding
manner during the overrunning in the pivoting direction y of the
closure cover 3.
[0052] The latching projection 26 operates in a relatively gentle,
resilient manner avoiding shear forces. On the other hand,
mechanical loads, such as for example ramming forces, on account of
the restoring force of the resilient tongue on the closure cover 3,
are compensated for by the film-like integral hinge, a further
source of the resilience. The direction-changing snap-action forces
are moderate, so as to be gentle on the material; the material
bridge between the closure lower part 2 and the closure cover 3 in
practice does not tear.
[0053] The, as it were, prismatic resilient tongue, in conjunction
with the end-side resilient movability, at the same time also has a
switching function in that the latching edge 27 first of all comes
into contact with the outer wide surface, overcomes the
right-angled end region of the latching projection 26 and
ultimately comes to bear flat against the undercut wide surface of
the latching projection 26 (cf. FIG. 7). During this pivoting back
into the latching position described, there is otherwise sufficient
clearance between the back 29 of the closure cover 23 and a niche
30 provided on the closure lower part 2, since, as can be seen, a
free space 31 which allows corresponding room for maneuver is left
clear between these two parts. The free space 31 lies in the plane
of pivoting of the closure cover 3.
[0054] The latching is eliminated by overrunning the resilient
tongue, i.e. the latching projection 26, in the opposite direction
to arrow y.
[0055] During both operations, the resilient tongue is not
excessively loaded at its root, but rather is utilized in the free
end region in accordance with its highest resilience.
[0056] With regard to the latching edge 27, it also remains to
state that, when the closed closure cap 1 is seen in side view,
this latching edge 27 can be recognized as a small gap, whereas
when the closed closure cap 1 is seen from above, it is integrated
in the peripheral boundary line 14 of the closure.
[0057] The subject matter shown in FIG. 8 ff. is of fundamentally
the same structure. The reference symbols are applied accordingly
to this closure cap 1, in some cases without the associated text
being repeated.
[0058] The focal point of this development relates to the latching
mechanism 4. If, according to the basic version, cf. for example
FIG. 3, two latching projections 26 with associated latching edges
27 are formed on the closure cover 3, with the hinge 8 on the hinge
axis x-x between them; then, according to this variant, the
latching projection 26 is formed centrally between two hinges 8'.
The above mentioned means of the latching mechanism 4 are located
in the region of a window 32 at the hinge location. This window is
formed partly on the closure lower part 2, more specifically the
top 19 thereof, and partly on the adjoining region of the closure
cover 3. Here, the window 32 is drawn into the boundary edge 14, so
that the latter presents the latching edge 27 explained above.
[0059] As can be seen from FIG. 13, the latching projection 26
which starts from the top 19 and in this case too runs in the
direction of protrusion z, has a rounded edge contour 33. There is
a tongue-shaped, highly resilient, stiff tab. The rounded edge
contour 33 may be a circular rounding. A segment-shaped contour is
illustrated.
[0060] Moreover, the resilience of the latching projection 26 is
also boosted by the fact that the latching projection 26 narrows in
terms of cross section toward its free boundary region, i.e. the
rounded edge contour. A wedge-shaped cross-sectional contour with a
truncated tip can be recognized, forming the latching projection 26
which can be overrun by the latching edge 27 of the closure cover
3. This produces the action/constellation described in detail
above.
[0061] On the outer side, closer to the zenith of the rounded edge
contour 33, is a bevel-like flattened section 34. At a spacing from
this, that side of the latching projection 26 which carries the
flattened section 34, closer to the hinges 8',8', has a
protuberance 35. This is positioned at the top side of a slight
recess 36 which boosts the movability of the wedge-shaped portion
of the latching projection 26 but offers a stable anchoring base in
the region of the protuberance 35 by virtue of the increased
accumulation of material. The window 32 which has been described is
located above this.
[0062] According to the variant, the closure cover 3 also has a
stopper 7, likewise produced in a pot shape. A diaphragm valve is
associated with the passage-opening 6 in the top 19 of the closure
lower part 2. The diaphragm carries the reference numeral 37. It is
held around the edge by an annular holding part 38. The holding
part 38 is latch-connected to a receiving part 39 positioned
upstream of the passage-opening 6 in the dispensing direction.
[0063] The diaphragm 37 is realized as a turning-inside-out
diaphragm and has a slit 40 for the substance that is to be
discharged to pass through. Further details of the said diaphragm
can be found in German Patent Application 103 33 638.9. The
disclosure content of this prior application is incorporated in
full in the present application, partly with a view to
incorporating features of these documents in claims of the present
application.
[0064] On the container side, a plate part 41 molded integrally
onto the holding part 38 engages below the diaphragm 37 in a
supporting manner. This plate part 41 is attached by way of spring
arms 42. The area surrounding the spring arms 42 represents a flow
connection to the passage-opening 6, denoted as aperture 43. The
clear dimension of the latter is expediently matched to the
external diameter of the pot-shaped stopper 7. In a refinement, the
latching connection 17/18 can be realized or simply a clamping
connection can be produced between the lateral wall of the stopper
7 and the corresponding inner wall of the aperture 43 of the
holding part 38. The friction action between the two parts can be
established in such a way that it is possible to bring about an
operationally reliable closed position, producing a frictionally
locking securing seat, which can be deliberately overcome, between
closure cover 3 and the holding part 38 retained in the receiving
part 39.
[0065] The lateral wall of the stopper 7 has longitudinal ribs 44
which in the closed position of the closure cover 3 come into
contact with the top side of the holding part 38. They act as
retention means.
[0066] In the region of the retaining mechanism 4, a strip 45 which
extends as far as the top side of the cover 19 then leads from the
top of the closure cover 3. This strip 45 is at a spacing from the
latching edge 27 and also at a distance from the longitudinal sides
of the shell-shaped closure cover 3. The strip 45 functions as a
screen and also allows any residual liquid which collects in the
head region of the dispenser to escape via the window 32. Drying
can also take place by this means.
[0067] All features disclosed are (inherently) pertinent to the
invention. The disclosure content of the associated/appended
priority documents (copy of the prior application) is hereby
incorporated in its entirety in the disclosure of the application,
partly with a view to incorporating features of these documents in
claims of the present application.
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