WO2014111253A1 - Childproof dispensing device - Google Patents

Abstract

The invention relates to a childproof dispensing device for media, comprising a storage container (1), a pump part (3) which is arranged on the storage container (1) in a sealed manner with the aid of a closure element (2) and is used to guide the medium from the storage container (1), an actuatable dispensing section (4) which is arranged on the pump part (3) and which is guided in an axially displaceable manner on a support element (5) associated with the closure element (2) for performing a reciprocating movement for dispensing the medium and which can be locked in at least one locking position with the help of manually operable resilient elements (11, 12). Said resilient elements (11, 12) are formed on a double spring (36) which can be moved with the dispensing section (4), said double spring having two two-armed pressure springs (37, 38) which are mounted successively in the actuation plane and comprising respectively, in the region of centre of the pressure spring, a flexible inner tongue (17). The tongues (17) arranged on an inner wall (21) of the support part (5) are respectively associated with a locking position which is defined by radial notches (19, 20) and which can attained by a rotationally moving the dispensing section (4), and compressing the double spring (36) generates play between the tongues (17) and the notches (19) for releasing the locking position and for rotating the dispensing section (4) back into the actuation position.

Description

 Child-resistant discharge device

The invention relates to a child-resistant discharge device for media according to the preamble of claim 1.

The invention relates to a child-resistant discharge device which is intended to prevent children from coming into contact with the contents of a discharge device. Opening mechanisms are therefore provided that are not overcome by children. For some media, national and international laws even make mandatory the use of parental controls.

From DE 101 34 796 A1 discloses a discharge device for a medium according to the preamble of claim 1 is known, which prevents unauthorized access to the contents of the medium in a reservoir, especially for children. On the one hand is an unauthorized operation of a dosing head due to a manual detachable locking means excluded. On the other hand, unauthorized removal of the entire discharge of the reservoir is prevented, since a container closure part is blocked by a fuse.

From DE 698 03 036 T2 a discharge device for a medium is known, which comprises a closure device for an exit region of a storage container for the medium. The closure device has a sleeve-like closure part provided with an internal thread and can be screwed onto an external thread of the outlet region of the storage container designed as a neck. In order to prevent a renewed unscrewing of the closure device from the outlet region of the storage container and thus to achieve a security for the screwed-on discharge device and for the medium content of the storage container, the closure part is surrounded by a cap-like securing part. This is to prevent that can be done by simply unscrewing the Verschlussvorichtung an unauthorized access to the contents of the storage container.

The disadvantage is that the locking of a manually operable pump part by means of the known spring bars is not sufficiently reliable.

From US 2005/0173461 A1 a child-resistant discharge device is known in which a pulling and turning is required to release a blocking position.

The object of the invention is therefore to provide a child-resistant discharge device for media, in which the unauthorized access to the contents of the reservoir is improved.

This object is solved by the features of claim 1.

As a result, a child-resistant discharge device is provided in which the function of spring bars is combined with a rotary movement to move the discharge in and out of a blocking position. Such a combined movement with a pressure and a rotational component causes a complex opening mechanism, which is considered to be child resistant.

The spring bars are inventively formed on a double spring. The spring force of such a double spring is easily selectable, which can be influenced on the pressure force required to release the blocking position. In this case, the discharge devices can be equipped individually and differently with double springs by the use of a spring insert. Because the double spring can be formed as a separate insert part, separate finger pads can also be formed. Customer wishes in the training of fingerpads can be considered. This applies in terms of size and the actuation force to release the child safety.

In this case, the double spring can be equipped with an integrated energy accumulator, which ensures that the inner tongues in the unloaded state of the double spring with a friction torque (braked) are slidably positioned against the inner wall. In the operating position and the blocking position it is ensured that the inner tongues move against the inner wall. The functions of the operation as well as the blocking are then ensured particularly secure.

The double spring can be inserted into a recessed area of a sleeve-type actuator and covered by an actuator cover. In this normal position, the double spring is preferably not or only minimally loaded. Guide elements may be provided for fixing the double spring to ensure their uniform operation on the spring bars. In a further development of the invention, a higher number than two spring bars may be provided.

Further embodiments of the invention are the following description and to refer to the dependent claims.

The invention will be explained in more detail with reference to the embodiments illustrated in the accompanying drawings.

 1 shows schematically a side view of a child-resistant discharge device in an upper rest position and locked in a blocking position "closed",

 2 shows schematically a section A-A of FIG. 1,

 3 shows schematically a section E-E of FIG. 1,

 4 shows schematically a top view of FIG. 1,

 5 shows schematically a section B-B of FIG. 4,

 6 shows schematically a side view of a child-resistant discharge device in a lower actuation position and unlocked for an actuation process "open",

 FIG. 7 schematically shows a section D-D of FIG. 6, FIG.

 FIG. 8 schematically shows a section F-F of FIG. 6, FIG.

 9 shows schematically a plan view of FIG. 6,

 10 shows schematically a section C-C of FIG. 9,

 11 schematically shows a perspective view of the carrier part, FIG. 12 shows schematically a perspective bottom view of a double spring,

 13 shows schematically a bottom view of an overhead positioned discharge section,

 14 shows schematically a perspective top view of the discharge section with inserted double spring,

 Fig. 15 shows schematically an exploded view of the child-resistant Austragvorrichtu ng.

The invention relates to a child-resistant discharge device for media with a reservoir 1 and a sealed to the reservoir 1 via a closure element 2 attached pump part 3 for conveying Medium from the reservoir 1. On the pump part 3 is placed an actuatable discharge section 4, which is axially displaceably guided on a support member 5 associated with the closure element 2 for carrying out a lifting movement for dispensing medium. The discharge section 4 is for actuating the pump part 3 by an actuation path a between a lower actuation position shown in FIG. 8, Fig.10 and an upper rest position shown in FIG. 5 in an actuating position 14 movable. In addition, the discharge section 4 is rotatable relative to the carrier part 5 about a central axis X. For carrying out the translatory movement, preferably axially in the X direction, and for carrying out the rotary movement of the discharge section 4 relative to the carrier part 5, the discharge section 4 is preferably fixed to the carrier part 5 via a snap connection 6. The carrier part 5 itself is fixed to the closure element 2 by a fastening device 7 (cf., Fig. 15), so that the carrier part 5 assumes a preferably fixed position relative to a container neck 8 of the storage container 1. The carrier part 5 and the closure element 2 can also be formed in one piece.

The closure element 2 can be provided in a known manner with an internal thread which can be screwed onto an external thread 9 on the container neck 8. A barbed toothing 10 can secure this screwing and prevent unscrewing. Alternatives to the screw cap are, for example, crimp seals or snap closures. The closure element 2 surrounds the container neck 8 preferably like a shell, whereby a withdrawal from the container neck 8 is difficult.

The shape of the discharge section 4 can be selected depending on the application. According to FIGS. 1 to 15, the discharge section 4 is formed like a nozzle with a nozzle 34 for a nasal application. For dispensing eye drops, the dispensing section 4 is preferably formed with a shorter neck 34 than shown. To lock the discharge section 4 in the upper rest position, as shown in Fig. 1 to Fig. 5, the discharge section 4 by means of manually operable spring bars 11, 12 in at least one blocking position 13 on the support member 5 can be locked to unauthorized access to prevent the contents of the reservoir 1. The discharge section 4 is not movable in the blocking position 13 into a lower actuation position in an actuation position 14. This is only possible if the spring webs 11, 12 are positioned in the actuation position 14 to the carrier part 5, as shown in FIG. 8 and FIG. 10 and as will be explained below.

The spring webs 11, 12 are formed on a double spring 36 which is movable with the discharge section 4 and which has two inwardly actuated two-armed compression springs 37, 38 each having an inner, radially inwardly bendable tongue 17 in the area of the actuation plane Y (see FIG Have compression spring center. The tongues 17 are each assigned to an inner wall 21 of the carrier part 5 a blocking position 13 which is limited by radial detents 19, 20 and can be moved in a rotational movement Z of the discharge section 4 (see FIG. Compression of the double spring 36 creates a clearance between the tongues 17 and the catches 19 for releasing the blocking position 13 and turning back (the rotational movement Z) of the discharge section 4 into the actuating position 14.

In the upper rest position of the discharge section 4 in the actuation position 14, the inner tongues 17 on the inner wall 21 of the support part 5 are each assigned a guide ramp 18 as access curve to a footprint 22 of the blocking position 13. This guide ramp 18 thus forms a sliding surface for each free end of the tongue 17, which guides the tongue 17 in the blocking position 13, when the discharge section 4 is in the upper rest position of the actuating position 14. If, on the other hand, the discharge section in the actuation position 14 is moved to a lower actuation position, as shown in FIG. 8, the guide ramp 18 prevents the discharge section 4 from rotating as a lateral stop into the blocking position 13 (see FIG. This is to ensure that a blocking of the discharge section 4 in order to prevent it from being actuated in the stroke direction of the center axis X should only take place when the discharge section 4 is in the upper rest position of the actuation position 14.

The two-armed compression springs 37, 38 are preferably designed as a same-armed, leaf-spring-like compression springs. Further, as shown in FIG. 12, the double spring 36 is preferably attachable as a separate spring insert to a sleeve-type actuator 15 formed on the discharge section 4. The tongues 17 can be plugged through openings 39 in the actuator 15. The two compression springs 37, 38 of the double spring 36 are preferably connected in the region of the spring ends via integrally formed compression spring elements 40 which hold the inner tongues 17 displaceable against an inner wall 21 of the support part 5 with a friction moment with unloaded spring webs 11, 12.

The spring webs 11, 12 are preferably two oppositely arranged spring webs 11, 12th

The footprint 22 preferably has an elevation at which the inner tongue 17, by abutting the footprint 22, retains the discharge portion 4 in the upper rest position.

The spring webs 11, 12 each have the inner tongue 17 and an outer tongue

23, which are radially spaced and preferably arranged parallel to each other. For the respective inner tongue 17 is preferably a backdrop-like leadership

24 provided on the support member 5 to guide the discharge section 4 in the execution of a lifting movement for dispensing medium in the operating position 14, as shown in FIG. 8.

As shown in FIG. 14, fixing elements may be provided for positioning the double spring 36 on the actuation plate 15, for example as webs 26, 28 and / or recesses 27 are formed to clamp a double spring 36 on the actuator divider 15.

The closure element 2 preferably has an axially extending, here the sleeve-like support member 5 penetrating dome 29, which engages in an axial guide track 30 of the discharge section 4 for axial support of the discharge section 4 on the closure element 2 in the lifting movement for Medienaustrag and during rotation in the Blocking position 13. A tilting of the discharge section 4, whereby a release of the blocking position 13 could be easier, is thereby avoided.

The guide ramp 18 may define a distance in the circumferential direction of the preferably circular carrier part 5, which determines a twist angle of the discharge section 4 relative to the carrier part 5 in the blocking position 13. The guide ramp 18 preferably further includes an end portion that extends into or over the footprint 22. This end portion thus forms a transfer section via the input-side notch 19. The guide ramp 18 can thus optimize the movement of the respective tongue 17 into the blocking position 13 by selecting a distance from the inner wall 21, as FIG. 8 illustrates.

The actuator 15 of the discharge section 4 can be snapped on the support member 5. An actuator cover 16 may be placed on the actuator plate 15, which can be formed for tunic purposes with selectable material.

The operation of the child safety device is as follows. By rotating the discharge section 4 in the upper rest position, the respective inner tongue 17 can engage in the blocking position 13 via the respective guide ramp 18. In the upper rest position of the discharge section 4 is held by a return spring of the pump part 3. From this the discharge section 4 arresting blocking position 13, the inner tongues 17 can only disengage by a Pressing the two spring bars 11, 12 against each other in direction V (see Fig. 3). Under the action of this external load takes a turning back of the discharge section 4 until the respective inner tongue 17 enters the actuating position 14, where a lifting movement of the discharge section 4 is again possible. Preferably, a free end 31 (see Fig. 3) of each inner tongue 17 comes into sliding contact with the guide ramp 18 upon rotation of the discharge section 4 and the support member 5 relative to each other, starting from the upper rest position, as shown in Fig. 5 , To release the tongue 17 from the blocking position 13, the path lock the catch 19 must be overcome, which requires that the spring bars 11, 12 are compressed, creating a game between the catch 19 and the tongue 17. Because the respective tongue 17 learns an inward movement component in the direction V. This allows the respective inner tongue 17 can be rotated back into the operating position 14.

As FIG. 15 shows, finally, a nozzle insert 32 and a fluid path insert 33 can be inserted into the discharge section 4 in known manner. Finally, to protect a nozzle 34 of the discharge section 4, a protective cap 35 can be mounted detachably. As shown in FIG. 13, the discharge portion 4 may have a port 41 for connecting the pump portion 3.

According to an alternative embodiment, not shown, the nozzle 34 may be fixedly attached to the closure element 2 to the reservoir 1, while the discharge section 4 relative to the nozzle 34 performs a lifting movement for discharging medium.

Claims

claims 1. child-resistant discharge device for media with a storage container (1), a to the reservoir (1) via a closure element (2) sealed mounted pump part (3) for conveying medium from the reservoir (1), one on the pump part (3) attached, operable discharge section (4), the one on the closure element (2) associated carrier part (5) for performing a lifting movement for dispensing medium in an actuating position (14) guided axially displaceable and with the aid of manually operable spring bars (11, 12) in at least one blocking position (13) can be locked, characterized in that the spring webs (11, 12) on a with the discharge section (4) movable double spring (36) are formed, the two in an operating plane (Y) successively connected two-armed compression springs (37 , 38) each having an inner, radially inwardly bendable tongue (17) in the region of the compression spring center, and the tongues (17) on an I nnenwand (21) of the support part (5) each one of radial catches (19, 20) limited, at a rotational movement of the discharge (4) approachable blocking position (13) is assigned, and a compression of the double spring (36) creates a game between the Tongues (17) and the detents (19) for releasing the blocking position (13) and turning back the discharge section (4) in the operating position (14). 2. child-resistant discharge device according to claim 1, characterized in that in an upper rest position of the discharge section (4) in the operating position (14) the inner tongues (17) on the inner wall (21) of the support part (5) each have a guide ramp (18) is assigned as access curve to a footprint (22) of the blocking position (13). 3. Child-resistant discharge device according to claim 1 or 2, characterized in that the two-armed compression springs (37, 38) are designed as same-armed, leaf-spring-like compression springs. 4. Child-resistant discharge device according to one of claims 1 to 3, characterized in that the double spring (36) as a spring insert on a at the discharge section (4) formed sleeve-like actuator actuator (15) is attachable. 5. child-resistant discharge device according to one of claims 1 to 4, characterized in that the two compression springs (37, 38) of the double spring (36) in the region of the spring ends via integrally formed compression spring elements (40) are connected to the inner tongues (30) in unloaded spring bars 17) with a friction torque against an inner wall (21) of the support part (5) hold displaceable. 6. child-resistant discharge device according to one of claims 1 to 5, characterized in that the closure element (2) has an axially through the support member (5) extending dome (29) in an axial guide track (30) of the discharge (4) engages the axial retention of the discharge section (4) on the closure element (2). 7. child-resistant discharge device according to one of claims 1 to 6, characterized in that a guide ramp (18) defines a distance which determines a twist angle of the discharge section (4) relative to the support member (5) in the blocking position (13). 8. A child-resistant discharge device according to any one of claims 1 to 7, characterized in that the guide ramp (18) has an end portion which extends into or over the contact surface (22). 9. child-resistant discharge device according to one of claims 1 to 8, characterized in that the guide ramp (18) for moving the respective inner tongue (17) via a radial catch (19) has a spaced surface parallel to the inner wall (21). 10. Child-resistant discharge device according to one of claims 1 to 9, characterized in that the closure element (2) on a container neck (8) of the storage container (1) secured screwed, aufbördelbar or snap-on. 11. Child-resistant discharge device according to claim 10, characterized in that the closure element (2) envelope-like manner surrounds the container neck (8).