EP2492019A1 - Dispenser - Google Patents

Abstract

The dispenser has a cap (70) and an operating handle (30) connected with each other such that displacement of the handle is mechanically blocked when the cap is arranged at a protecting position. A blocking member (32) is movably provided opposite to an outer housing (10), where movement of the blocking member is opposite to movement of the handle in the outer housing. The blocking member is extended in an operating condition of the handle through a recess (22) of the outer housing in the cap region, where the cap is arranged at the protecting position in the cap region.

Description

Field of application and state of the art

The invention relates to a discharge device for discharging in particular pharmaceutical liquids with an outer housing surrounding a housing, a liquid reservoir, a discharge opening, a conveyor for conveying liquid from the liquid storage to the discharge, a cap which covers the discharge opening in a patch on the outer housing protective position and an actuating handle for actuating the conveyor, which is displaceable relative to the outer housing between an unactuated relative position and an actuated relative position. The cap and the actuating handle cooperate in such a way that a displacement of the actuating handle is mechanically blocked as long as the cap is arranged in its protective position.

Generic discharge devices are known from the prior art. Its peculiarity lies in the fact that an actuation is not possible when the cap is attached. Thus, in particular, the accidental operation is effectively prevented.

A generic discharge device is for example from the EP 1 051 262 B1 known. The discharge device shown and described there comprises two extensions on a cap which extend through recesses of an outer housing of the discharge device into it and in the attached state of the cap block a displacement of the actuating handle at least to the extent that no complete discharge process is possible.

The discharge of the EP 1 051 262 B1 However, despite the anti-actuation effect of the cap, it is not suitable as effective protection against abuse by children because the extensions on the cap prevent the use of a more complex cap type, such as a child-proof screw cap. The danger is therefore great that children successfully loosen the cap from the outer housing or by applying a high force on the actuating handle lift the cap from its protective position and thus can get access to the then liquid pharmaceutical liquid.

Task and solution

The object of the invention is to further develop a generic discharge device that this provides a safer protection against misuse by children and / or allows a more flexible use of cap types.

According to the invention this is achieved in that in a generic discharge to the cap a plurality of extending in a stripping direction of the cap locking extensions are provided, each extending in the protective position of the cap by a recess in the outer housing to the interior of the blocking of the mechanical handle cause. Here are the locking processes adapted to the recess so that, starting from the protective position, a complete separation of the cap from the outer housing in the peeling direction is only possible if previously the cap relative to the outer housing relative to an orthogonal plane which is aligned orthogonal to the peeling, from a protective position corresponding blocking position in a release position has been moved. Furthermore, it is provided that the locking extensions are each adapted to the associated recesses, that by turning the cap about a parallel to the withdrawal axis of rotation all the locking extensions relative to the respective recesses from their locked position are displaced into their release position.

This design of the invention can thus the design of the aforementioned EP 1 151 262 B1 resemble. In particular, to make it difficult for children to remove the cap and thus the actuation of the actuator, however, it is provided that a removal of the cap by peeling in a preferably the main extension direction of the discharge corresponding stripping direction is not possible without in the course of a displacement transverse to the peeling perform. Thus, it may be provided, for example, that the cap and with it the barrier extension first has to be displaced translationally in a direction lying parallel to the orthogonal plane in order to permit removal in the removal direction only subsequently. The displacement of the cap parallel to the orthogonal plane is understood to mean a displacement in which, in a non-destructive manner, at least all cap parts which are accessible from the outside are displaced together and to the same extent as a whole. However, it may be provided that cap parts which protrude into the outer housing of the discharge device are displaced by deflection to a lesser extent. This will be explained below.

The barrier extensions according to the invention assume a dual function according to the invention. They serve each one according to the EP 1 151 262 B1 the blocking of the actuating handle. On the other hand, they are each adapted to the recess such that the removal of the cap from the outer housing requires a difficult to survey children complex movement sequence.

The conveyor of a discharge device according to the invention is preferably designed as a pump, which has a pumping chamber, the content of which can be pressurized by a force applied to the actuating handle. The displacement of the actuating handle by the manual application of force is preferably carried out against the force of a return spring. The conveyor and the return spring may be part of a pump dispenser inserted in the discharge device.

Particularly preferred is a design in which the locking extensions each having a main portion which is in the blocking position of the cap in the withdrawal direction aligned with the recess, and attached to the locking extension, preferably molded, undercut portion having in the locking position of the cap on the removal direction not aligned with the recess. Thus, a Hinterschneidungsabschnitt is provided on each of the locking extension, which forms an undercut together with the outer housing or stationary sections, which precludes the pure peeling of the cap in the peeling without movement of the cap in the orthogonal plane. Only when the undercut paragraph is aligned with the recess, a removal of the cap is possible.

Particularly advantageous is a design in which a Kraftbeaufschlagungsmittel is provided, in particular a resilient Kraftbeaufschlagungsmittel, which a one of a displacement of the cap from the Locked position in the release position counteracting opposing force exerts on the cap. In this way it is particularly prevented that the cap automatically, ie, for example, by acting on the entire discharge device forces in the movement of the discharge, relocated to its release position and then open in a simple way even by a child. Such drag is a serious obstacle for a toddler to remove the cap from the outer housing.

It is particularly preferred if the force-applying means is provided as an elastically deflectable web which is attached either to the outer housing or stationary thereto or else to the cap. It is particularly advantageous if the force application means is provided as elastically deflectable web on a locking extension of the cap. This deflectable web is elastically deflected in a displacement of the cap from the locking position in the release position, in particular by a stationary outer housing to the opposite section. However, it is also conceivable that the stationary attached counter section is elastically imaginable. Such a design with an elastically deflectable web is particularly easy to produce, since it requires no separate components for this.

Particularly advantageous is a design in which the cap and the outer housing are adapted to each other in such a way that a displacement of the cap from the locked position into the release position is only possible if the cap has been displaced from the protective position initially in stripping direction. This can be achieved for example by the shape of the locking extensions or else by other form-fitting a displacement counteracting portions of the cap on the one hand and the outer housing on the other. The advantage of this design is that it is particularly difficult for a child, especially a toddler, to see through when a cap is in three of each other deviating movement phases must first be moved while retaining their blocking position in stripping, in order subsequently to be spent in the orthogonal plane in the release position, before a continued shift in stripping direction is possible. Preferably, the cap has to be moved relative to the outer housing by at least 2 mm, preferably by at least 4 mm, while maintaining the blocking position, in order subsequently to be movable in the orthogonal plane and thus brought into the release position. Since the lifting of the cap by the mentioned 2 mm or 4 mm already leads to a limited mobility of the actuating handle relative to the outer housing, it is considered preferable if this displacement distance is dimensioned such that a displacement of the actuating handle from its unactuated state by this distance still does not cause a discharge process.

According to the invention it is provided that a plurality of locking extensions are provided on the cap, which is associated with a respective recess on the outer housing. It is provided that the locking extensions are each adapted to the associated recesses, that all locking extensions relative to the respective recesses from their locked position are in their release position displaced by turning the cap about a parallel to the withdrawal axis of rotation. Such a configuration can be achieved, for example, in that undercut sections on the locking extensions extend in the opposite direction in the case of two locking projections which are arranged on opposite sides of the discharge opening on the cap. Thus, it can be achieved by a rotational movement for the transfer of the cap from the locking position in the release position at the same time for all undercut sections that they are aligned with the respective recesses, so that the removal of the cap is then possible. A rotational movement is above all advantageous because it regardless of how a patient holds the discharge straight in the same Direction, preferably seen from the cap in a clockwise direction, can take place.

Brief description of the drawings

Fig. 1

eine Ausführungsform einer erfindungsgemäßen Austragvorrichtung,

Fig. 2a bis 2d

die Austragvorrichtungen der Fig. 1 in verschiedenen Stadien vom gesicherten Zustand bis zum entsicherten Nutzzustand.

Other aspects and advantages of the invention will become apparent from the claims and from the following description of an embodiment of the invention, which will be explained with reference to FIGS. Showing:

Fig. 1

an embodiment of a discharge device according to the invention,

Fig. 2a to 2d

the discharge of the Fig. 1 in various stages from the secured state to the unlocked state of use.

Detailed description of the embodiment

The Fig. 1 and 2a to 2d show an embodiment of a discharge device according to the invention. First, this is based on the representations of the Fig. 1 and 2a the basic structure of the embodiment of the discharge clarifies.

The discharge device has a housing 110 in which an actuating portion 130 is slidably mounted in the direction of the arrow 102a. Furthermore, the housing 110 has a discharge opening 120, which can be connected to a media store 152 via a connecting channel 118. The promotion takes place in that the liquid reservoir 152 is displaced upwards by the actuation section 130 and with the interposition of an intermediate piece 160 in the direction of the arrow 102a, thereby providing a location which is stationary relative to the discharge opening 120 Hollow needle pierces through a plug 158 of the liquid reservoir 152 and with continued displacement of the liquid reservoir 152, the plug 158 reduces the volume of the liquid reservoir 152 reduces and thereby causes the discharge process through the discharge port 120.

The discharge of the Fig. 1 and 2a to 2d has a cap 170 which is adapted to cooperate with the actuating portion 130 such that when the protective cap 170 is in its mounted protective position, a discharge operation can not be effected. To achieve this, two locking extensions 172 are attached to the cap 170, to each of which corresponding recesses 122 are provided on the housing 110. In Fig. 2a the recess defining portions of the housing are shown highlighted in the left side view. These locking projections extend with their lower end to the actuating handle 130 and thus hinder a displacement of the actuating handle in the state of Fig. 2a , in which the cap is arranged in its protective position.

How the particular Fig. 1 can be seen, the locking extensions 172 have a main portion 174, the width of which is not greater than the width of the recesses 122 and which is attached to the cap 170 so that it in the protective position of the cap with the respective associated recess 122 in the housing 110th flees. At the main portion 174, a recess 174a is laterally provided. Due to the eccentric arrangement of this recess 174a, it divides the main section 174 into a main bar 174b, which is barely deformable due to its width, and a narrow spring bar 174c. On the main web 174b, an undercut portion 176 is laterally formed, which is not aligned in the protective position of the cap 170 on the housing 110 with the corresponding recess 122, as will be explained below.

Again Fig. 1 can be seen, both barrier extensions 172 are designed according to the above description. However, they are each aligned with respect to a main axis 101 so that in a plan view, the undercut portions 176 each rise in the counterclockwise direction over the main sections.

An additional safeguard against removal of the cap 170 is provided by mirror-image mounted lateral recesses 124 on the housing 110, in which protrude with the cap 170 attached to the cap 170 and inwardly facing projections 178 protrude. The extensions 178 can be moved out of the depressions 124 by pressing the short sides 170a of the cap 170 toward each other, so that the long sides 170b and thus also the projections 178 escape outward.

The Fig. 2a to 2d illustrate the aggravation caused by the locking projections 172 when removing the cap 170, which prevents children, especially infants, from being able to deduct the cap successfully.

Fig. 2a shows a starting position in which the cap 170 is in its mounted protective position on the housing 110. An immediate removal of the cap 170 from this initial position in the direction of the arrow 2a is not possible because the undercut portion 176 rests in this state on a housing-fixed portion 122a at the edge of the recess 122.

A removal of the cap 170 is only possible if the undercut portions 176 were displaced transversely to the stripping 102a relative to the housing-fixed portion 122a in the direction of the arrow 106a. For this purpose, the cap 170 is rotated substantially as a whole in a clockwise direction about the main axis 101. Move while twisting the projections 178 on the cap 170 within the recesses 124 of the housing, leaving the recesses 124 but not.

As it turned out Fig. 2b results, the rotation of the cap 170 about the axis 102 is possible only against a counter force. This is caused by an elastic deformation of the web 174c, when this against a receiving opening, based on the Fig. 2a to 2d Right side limiting portion 122 b, is pressed.

If this twisted state of Fig. 2b is reached, with simultaneous application of force to the short sides 170a and thus effected lifting out of the extensions 178 from the recesses 124 of the rear portion 176 on the left-side portion 122a of the recess 122 are passed and the cap 170 thus substantially in stripping 102a while turning back relative to the housing 110 are removed. This is in the Fig. 2c and 2d clarified. After removing the cap 170, the discharge can be done in the manner described above.

Claims (5)

Discharge device for discharging liquids with an outer housing (110) surrounding an inner space, a liquid storage (152), a discharge opening (120), a conveying device for conveying liquid from the liquid store (152) to the discharge opening (120), - A cap (170) in a mounted on the outer housing (110) protective position, the discharge opening (120) covered and - An actuating handle (130) for actuating the conveyor, which is displaceable relative to the outer housing (110) between an unactuated relative position and an actuated relative position,
in which - The cap (170) and the actuating handle (130) cooperate such that a displacement of the actuating handle (130) is mechanically blocked when the cap (170) is arranged in its protective position,
characterized in that
on the cap (170) a plurality of in a stripping direction (102a) of the cap (170) extending locking extensions (172) are provided, each extending in the protective position of the cap (170) through a recess (122) in the outer housing (110) in order to effect the blocking of the mechanical handle (130) in the interior, wherein the locking projections (172) are adapted to the recesses (122) such that, starting from the protective position, a complete separation of the cap (170) from the outer housing (110) Removal direction (102a) is only possible if previously the cap (170) relative to the outer housing (110) with respect to an orthogonal plane which is aligned orthogonal to the stripping direction (2a), from one of the protective position corresponding Lock position was shifted into a release position, and wherein the locking extensions (172) are each adapted to the associated recess that by rotation of the cap (170) about a Abziehhrichtung (102 a) parallel axis of rotation (101) all the locking extensions (172) relative to the Recesses (122) are displaced from their locked position into their release position. Discharge device according to claim 1,
characterized in that - The locking projections (172) each have a main portion (174) which is in the blocking position of the cap (170) in the withdrawal direction (2a) aligned with the recess, and - On the respective barrier extension (172), a Hinterscheidungsabschnitt (176) is provided, which in the blocking position of the cap (170) in the withdrawal direction (2a) relative to the recess (122) is not aligned. Discharge device according to claim 1 or 2,
characterized in that
a force-applying means (174c) is provided, in particular a resilient force-applying means (174c), which exerts a counteracting a displacement of the cap (170) from the locking position into the release position counterforce on the cap (170). Discharge device according to claim 3,
characterized in that
the force-applying means (174c) is provided as elastically deflectable web (174c) on the cap (170), in particular on the locking extension (172) of the cap (170), which in the displacement of the cap (170) from the locked position to the release position a stationary to the outer housing counter portion (122b) is elastically deflected. Discharge device according to one of the preceding claims, characterized in that
the cap and the outer housing are adapted to each other in such a way that a displacement of the cap from the locking position into the release position is only possible if the cap has been displaced initially starting from the protective position in the stripping direction.

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