Dispenser

Abstract

A dispenser has an actuation device ( 24 ) for dispensing components from an output device ( 31 ) which is connected to reservoirs ( 26, 27 ). The actuation device acts on the pumping devices ( 34, 35 ) indirectly via a dosing device and the dosing device is equipped with a setting device ( 23 ) which can be actuated to change the position of a transmission element ( 40 ) acting on the pumping devices for setting the quantity ratio of the components. Both the setting device and the actuation device can be rotated about a longitudinal axis ( 25 ) of the dispenser.

1 . A dispenser for the dosed dispensing of at least two components, the dispenser comprising:
 two reservoirs, the components being received in one reservoir, of the two reservoirs, respectively;   an output device connected to the reservoirs;   an actuation device for dispensing the components from the output device;   two pumping devices wherein a separate pumping device, of the two pumping devices, is assigned to each reservoir and the pumping devices are equipped with the actuation device for dispensing the components from an output device which is connected to the reservoirs;   a transmission element; and   a dosing device, wherein the actuation device acts on the pumping devices indirectly via the dosing device and the dosing device comprises a setting device which can be actuated to change a position of the transmission element acting on the pumping devices for setting the quantity ratio of the components, wherein both the setting device for setting the quantity ratio of the components and the actuation device for dispensing the components from the output device, for the purpose of actuation, are rotatable about a longitudinal axis of the dispenser.   
     
     
         2 . A dispenser according to  claim 1 , further comprising a reservoir housing, wherein the setting device of the dosing device has an adjusting housing which can be rotated about the longitudinal axis of the reservoir housing, in which the reservoirs for receiving the components and the pumping devices are received, and the transmission element is arranged in the adjusting housing in a rotationally fixed manner with respect to the adjusting housing and axially displaceable with respect to a longitudinal axis of the adjusting housing for actuating the pumping device, wherein the transmission element has a contact surface that is of an annular design or formed as a ring segment which contact surface has a surface contour changing in shape along a circumference thereof and interacting with pumping pistons of the pumping devices. 
     
     
         3 . A dispenser according to  claim 2 , wherein the actuation device for dispensing the components has an actuating housing which can be rotated about the longitudinal axis of the dispenser relative to the adjusting housing, said actuating housing comprising a guide arrangement to enable the axial displacement of the transmission element, wherein a first guide device of the guide arrangement, which is formed in the actuating housing, interacts with a second guide device of the guide arrangement, which is formed independently of the actuating housing, for converting a rotary movement of the actuating housing into an axial movement of the transmission element. 
     
     
         4 . A dispenser according to  claim 3 , wherein the second guide device has a guide section having an axially oriented guide slot and a pin arrangement positioned at the transmission element with at least one radial guide pin which penetrates through the guide slot and with its contact end interacts with the first guide device of the actuating housing. 
     
     
         5 . A dispenser according to  claim 4 , wherein the transmission element has a guide pin and the actuating housing has an inner wall, forming the first guide device, coaxially arranged with respect to the guide section and having a guide path having a contact contour interacting with a contact end of the guide pin and controlling the axial movement of the transmission element. 
     
     
         6 . A dispenser according to  claim 4 , wherein the axially oriented guide slot formed in the guide section at its lower end has a pin catch for receiving the radial guide pin to define a direction of rotation of the actuation device. 
     
     
         7 . A dispenser according to  claim 4 , wherein an initial position of the actuation device, in which the pumping devices are not acted upon by the transmission element, is defined by a spring device arranged between a stop formed at the guide section and the transmission element. 
     
     
         8 . A dispenser according to  claim 7 , wherein the stop is formed at an axial end of a pin formed at a bottom of the guide section and extending through an opening formed in a bottom of a central cup-shaped indentation of the transmission element, and the spring device is formed as a helical spring arranged in an annular space formed between the pin and the indentation and which extends between the stop and the bottom. 
     
     
         9 . A dispenser according to  claim 1 , wherein an initial position of the actuation device, in which the pumping devices are not acted upon by the transmission element, is defined by a latching device arranged at an axial end of a latching pin, which is arranged in the guide section, which latching device, with the transmission element being disposed in the initial position, engages behind an edge of a central opening in the transmission element. 
     
     
         10 . A dispenser according to  claim 5 , wherein the guide path arranged in the inner wall of the actuating housing is formed as a guide groove with groove edges, which run in parallel to one another, receiving the guide pin between them. 
     
     
         11 . A dispenser according to  claim 3 , wherein for forming the second guide device the guide section is formed by the adjusting housing and the pin arrangement with the at least one guide pin is formed at the transmission element, such that when the adjusting housing is rotated, the transmission element is correspondingly rotated as well. 
     
     
         12 . A dispenser according to  claim 3 , wherein a relative arrangement of the adjusting housing with respect to the reservoir housing, is defined by a latching device formed between the adjusting housing and the reservoir housing, which latching device has a plurality of latching positions for a defined assignment of contact regions of the transmission element being formed on the contact surface, and plungers acting on pumping pistons of the pumping devices. 
     
     
         13 . A dispenser according to  claim 12 , wherein the latching device comprises a modular latching unit which can be inserted between the reservoir housing and the adjusting housing and which can be actuated as a function of the direction of rotation with respect to the reservoir housing to enable the relative rotation of the adjusting housing. 
     
     
         14 . A dispenser according to  claim 13 , wherein the latching unit has a first latching element of an annular design which can be connected to the reservoir housing in a rotationally fixed manner, and a second latching element of an annular design, which can be connected to the adjusting housing in a rotationally fixed manner, wherein the latching elements interact with one another via a latching engagement which is produced in a common annular plane with the aid of latching projections, said latching projections being formed by a toothed pawl section. 
     
     
         15 . A dispenser according to  claim 14 , wherein one of the two latching elements has the toothed pawl section only in a ring segment. 
     
     
         16 . A dispenser according to  claim 12 , wherein the latching device has a latching axle which is connected to the reservoir housing and which engages with a hub of the transmission element, the hub being formed as a latching sleeve to produce a latching engagement. 
     
     
         17 . A dispenser according to  claim 16 , wherein latching projections are formed on the circumference of the latching axle and interact with latching projections formed on a bore wall of the latching sleeve to produce the latching engagement. 
     
     
         18 . A dispenser according to  claim 17 , wherein the latching projections are formed by a toothed pawl section. 
     
     
         19 . A dispenser according to  claim 3 , wherein for forming the second guide device, the guide section is connected to the reservoir housing in a rotationally fixed manner, the pin arrangement being formed as a guide ring having at least one guide pin and the transmission element being received in the guide ring so as to be rotatable and being connected to the adjusting housing in a rotationally fixed manner by means of a radial engagement device, such that when the adjusting housing is rotated, a relative rotation with respect to the guide section is effected by the same as well. 
     
     
         20 . A dispenser according to  claim 19 , wherein the engagement device has a setting sleeve in which the transmission element is received in a rotationally fixed manner and so as to be axially displaceable, wherein the setting sleeve produces an engaging connection to the adjusting housing via a setting pin which penetrates radially through the guide section in a setting groove. 
     
     
         21 . A dispenser according to  claim 20 , wherein a defined relative arrangement of the adjusting housing is provided via a latching device formed between the setting sleeve and the guide section, which latching device has a plurality of latching positions for a defined assignment of contact regions of the transmission element being formed on the contact surface, and plungers acting on pumping pistons of the pumping devices. 
     
     
         22 . A dispenser according to  claim 2 , wherein contact regions are formed on the contact surface of the transmission element by contact ledges which are arranged in a stepped sequence. 
     
     
         23 . A dispenser according to  claim 22 , wherein the contact ledges are formed by blind bores which are arranged in a horizontal surface of the transmission element.