Discharge device for manually producing a volume flow
A discharge device for manually producing a volume flow by a discharge stroke, having a medium reservoir for at least one medium, a discharge opening, a pumping device and a working area associated with the pumping device and which in the inoperative position has a detachable, positive connection to a holding area by means of a locking device is known. According to the invention the locking device in at least one plane orthogonal to a discharge stroke direction has an at least zonally or circumferentially corrugated and/or polygonal cross-section. Use for discharging a medium.
1. Discharge device for manually producing a volume flow through a discharge stroke, comprising:
a medium reservoir for at least one medium;
a discharge opening;
a holding area;
a locking device;
a pumping device; and
a working area associated with said pumping device,
the working area having in an inoperative position a detachable, positive connection with a holding area via a locking device,
wherein the locking device has an at least zonally corrugated cross-section in at least one plane orthogonal to a discharge stroke direction.
2. Discharge device according to claim 1 , wherein the corrugated cross-section is polygonal.
3. Discharge device according to claim 1 , wherein on at least one corrugated projection of the locking device facing the working area is provided a locking element.
4. Discharge device according to claim 1 , wherein the locking device is at least zonally made flexible by a uniform wall thickness in the at least zonally corrugated cross-sectional area.
5. Discharge device according to claim 1 , wherein the locking device is at least zonally made flexible by a sectionally varying wall thickness in the at least zonally corrugated cross-sectional area.
6. Discharge device according to claim 3 , wherein the locking element has a contour adapted to the geometry of the working area, the contour is realized on a face remote from the corrugated projection and the locking element is provided as a guide element for said working area.
7. Discharge device according to claim 1 , wherein the working area is provided on an outer face of the medium reservoir.
8. Discharge device according to claim 1 , wherein the working area is provided on an outer face of a feed sleeve;
the feed sleeve embraces the medium reservoir at least zonally and is mounted in limited displaceable manner in the holding area.
9. Discharge device according to claim 8 , wherein the feed sleeve is controllable by a pressure sleeve and at least one detachable, positive pressure position is provided between the feed sleeve and the pressure sleeve.
10. Discharge device according to claim 8 , wherein the feed sleeve has an inoperative locking area and at least one operative locking area spaced therefrom.
11. Discharge device according to claim 8 , wherein the pressure sleeve can be transferred along the feed sleeve from a starting locking area into at least one further pressure locking area.
12. Discharge device according to claim 8 , wherein the locking device is in the form of a corrugated sleeve and in the vicinity of a first sleeve face is provided at least one locking element and on a further face a stiffening preferably constructed as a holding flange.
13. Discharge device according to claim 8 , wherein the locking device is in the form of a polygonal sleeve and in the vicinity of a first sleeve face is provided at least one locking element and on a further face a stiffening preferably constructed as a holding flange.
14. Discharge device according to claim 8 , wherein the pressure sleeve, feed sleeve, locking element and medium reservoir are so matched to one another by means of locking devices that it is possible to at least perform a double discharge stroke of the discharge device.
15. Discharge device according to claim 14 , wherein the pressure sleeve, feed sleeve, locking element and medium reservoir are matched to one another by means of positively acting locking devices.
16. Discharge device for manually producing a volume flow through a discharge stroke, comprising:
a medium reservoir for at least one medium;
a discharge opening;
a pumping device;
a holding area;
a locking device;
a feed sleeve;
a pressure sleeve;
a working area associated with said pumping device,
the working area having in an inoperative position a detachable, positive connection with the holding area via the locking device,
wherein the locking device has an at least zonally corrugated cross-section in at least one plane orthogonal to a discharge stroke direction,
wherein the feed sleeve at least zonally embraces the medium reservoir and has at least two spaced locking areas for a positive locking connection with the locking device and the pressure sleeve,
the feed sleeve being controllable by said pressure sleeve in such a way that an actuating force multiply applied by a user permits an at least double discharge of the medium.
17. Discharge device according to claim 16 , wherein the locking device in at least one plane orthogonal to a discharge stroke direction has an at least zonally polygonal cross section.