Dispenser for discharging flowable compounds

A dispenser (1) for discharging flowable compounds (M) such as liquid or pasty compounds, wherein said dispenser comprises a reservoir (2) for accommodating the compound (M) and a dispensing pump (6), wherein the dispenser (1) has a longitudinal axis (x), wherein the dispensing pump (6) has an inflow channel and an outflow channel (12, 13) and a pumping chamber (11), which is delimited by valves (14, 15) on an inflow side and an outflow side, as well as a head piece (5), wherein the head piece (5) has a dispensing opening (23), wherein a pumping part (P) is configured to be moved relative to a cup part (9) against an elastic force of a restoring device (16) in order to achieve a pumping stroke (b), wherein the head piece (5) is motion-coupled with the pumping part (P) such that a motion of the head piece (5) from a completely depressed position to an attainable extension height corresponds to the pumping stroke (b), wherein a variable limiting device (27) is provided for variably limiting the pumping stroke (b) and a change of the pumping stroke (b) corresponds to a change of the extension height so that a reduction of the pumping stroke (b) reduces the attainable extension height, and wherein the limiting device (27) consists of exchange parts (37), which can be used selectively in order to realize a desired pumping stroke (b) and have different dimensions in order to realize different pumping strokes (b), and wherein the head piece has an actuating part (21) with an actuating part wall (25), the actuating part (25) being guided in the axial direction circumferentially by the cup wall (17) of the cup part (9).

A dispenser (1) for discharging flowable compounds (M) such as liquid or pasty compounds, wherein said dispenser comprises a reservoir (2) for accommodating the compound (M) and a dispensing pump (6) with a modular design, wherein the dispenser (1) has a longitudinal axis (x), wherein the dispensing pump (6) has an inflow channel and an outflow channel (12, 13) and a pumping chamber (11), which is delimited by valves (14, 15) on the inflow side and the outflow side, as well as a head piece (5), wherein the head piece (5) has a dispensing opening (23), wherein the dispensing pump (6) is configured to be inserted into the reservoir (2) and in the process connected to the reservoir (2) by means of a snap-fit connection, wherein the pumping chamber (11) is formed by a piston (8) and a cup part (9), which has a cup bottom (44) and a cup wall (17), wherein the piston (8) is accommodated in the cup part (9) in a slidable manner in order to achieve a pumping stroke (b), wherein the cup part (9) has on its outer wall fastening formations for fastening interaction with an inner wall of the reservoir (2), wherein the cup part (9) with the fastening formations Is realized in an exchangeable manner in order to be adapted to different reservoirs (2), wherein a fastening projection (18) is provided on a radial cup wall (17) of the cup part (9) in order to fix a position of the dispensing pump (6) in an installed state between the head piece (5) and the reservoir (2), wherein a restoring device (16) arranged between the piston (8) and the cup part (9) and limiting devices (27) for limiting a restoring motion furthermore are provided, wherein said limiting devices (27) come in contact with one another at a maximum pumping chamber volume, wherein the head part (5) is configured to be attached to the dispensing pump (6) in an exchangeable manner and has the dispensing opening (23) and a dispensing channel (22), wherein the dispensing channel (22) is configured to be inserted into the outflow channel (13) of the dispensing pump (6), and wherein an insertion depth of the dispensing pump (6) into the reservoir (2) is so large that a lower edge (43) of the dispensing pump (6) with its inflow channel (12) is in direct contact with the compound (M) to be dispensed, wherein a variable limiting device (27) is provided for variably limiting the pumping stroke (b) in such a way that a limitation of the pumping stroke between a minimally possible pumping stroke and a maximally possible pumping stroke can be achieved, wherein the maximally possible pumping stroke can be variably limited, and wherein the dispenser is in a non-usage position covered by a cap (26), which is fixed in a region of the cup wall (17) in a snap-fitted manner while being axially supported on the fastening projection (18), and wherein the head piece has an actuating part (21) with an actuating part wall (25), the actuating part (25) being guided in the axial direction circumferentially by the cup wall (17) of the cup part (9).