Dispenser for compounds in paste form

A dispenser (1) for pasty compounds (M) comprising:

• a storage volume (2) with a delimiting part (5), which is configured to be moved conjointly when drawing from the storage volume (2),
• a head piece (4) that is guided relative to the storage volume (2),
• a discharge chamber (19) with an inlet valve (43) and an outlet valve (41), the discharge chamber being formed between the head piece (4) and the storage volume (2),
• a discharge channel (23) with a discharge opening (24), the discharge channel being assigned to the discharge chamber (19), and
• a spring element (22), which acts between the storage volume (2) and the head piece (4) and at the same time forms part of a delimiting wall (29) of the discharge chamber (19), the spring element being configured to resiliently return the head piece (4) upon a movement from a starting position into an actuation position,
• wherein said spring element has, viewed in a cross section in which the head piece (4) is arranged vertically on a top and the storage volume (2) is arranged vertically on a bottom and a central longitudinal axis (x) of the dispenser (1) is illustrated in the form of a line, a lower tubular plug projection (38), which is accommodated in a conformingly shaped plug receptacle (12) connecting to the storage volume (2) in a sealed manner, and an upper retaining profile, which is accommodated in a retaining receptacle (31) of the head piece (4) in a sealed manner,
• wherein the spring element (22) is in the form of a let (26), if the spring element (22) is designed integrally with the retaining projection (30) and the plug projection (38), referred to the cross section in the starting position, wherein the leg is designed so as to connect to the plug projection (38) and transforms into the retaining projection (30) via an upwardly directed curvature (27),
• wherein the retaining profile is realized in the form of an altogether annular retaining projection (30), which in terms of cross section is larger than the leg (26) and has an upper projection base (35) that lies in the retaining receptacle (31) and has a closed cross section,
• wherein a valve section (40) is integrally formed on the retaining projection (30) in order to realize the outlet valve (41), and
• wherein the valve section (40) has a concave profile (71) on its radially outer side facing the discharge channel (23).

A dispenser (1) for pasty compounds (M) comprising:

• a storage volume (2) with a delimiting part (5), which is configured to be moved conjointly when drawing from the storage volume (2),
• a head piece (4) that is guided relative to the storage volume (2),
• a discharge chamber (19) with an inlet valve (43) and an outlet valve (41), the discharge chamber being formed between the head piece (4) and the storage volume (2),
• a discharge channel (23) with a discharge opening (24), the discharge channel being assigned to the discharge chamber (19), and
• a spring element (22), which acts between the storage volume (2) and the head piece (4) and at the same time forms part of a delimiting wall (29) of the discharge chamber (19), the spring element being configured to resiliently return the head piece (4) upon a movement from a starting position into an actuation position,
• wherein said spring element has, viewed in a cross section in which the head piece (4) is arranged vertically on a top and the storage volume (2) is arranged vertically on a bottom and a central longitudinal axis (x) of the dispenser (1) is illustrated in the form of a line, a lower tubular plug projection (38), which is accommodated in a conformingly shaped plug receptacle (12) connecting to the storage volume (2) in a sealed manner, and an upper retaining profile, which is accommodated in a retaining receptacle (31) of the head piece (4) in a sealed manner,
• wherein the spring element (22) is in the form of a leg (26), if the spring element (22) is designed integrally with the retaining projection (30) and the plug projection (38), referred to the cited cross section in the starting position, the leg being designed so as to connect to the plug projection (38) and transforms into the retaining projection (30) via an upwardly directed curvature (27),
• wherein the retaining profile is realized in the form of an altogether annular retaining projection (30), which in terms of cross section is larger than the leg (26) and has an upper projection base (35) that lies in the retaining receptacle (31) and has a closed cross section,
• wherein the retaining receptacle (31) of the head piece (4) for accommodating the retaining projection (30) is in the form of a groove (32) that is open vertically downward,
• wherein the retaining projection (30) engages into the groove (32) of the head piece (4), which is open vertically downward, and wherein the projection base (35) of the retaining projection (30) is axially spaced apart from a facing groove base (67) of the groove (32) with respect to its end face that is directed upward at a ceiling section (21).

A dispenser (1) for pasty compounds (M) comprising:

• a storage volume (2) with a delimiting part (5), which is configured to be moved conjointly when drawing from the storage volume (2),
• a head piece (4) that is guided relative to the storage volume (2),
• a discharge chamber (19) with an inlet valve (43) and an outlet valve (41), the discharge chamber formed between the head piece (4) and the storage volume (2),
• a discharge channel (23) with a discharge opening (24), the discharge channel being assigned to the discharge chamber (19), and
• a spring element (22), which acts between the storage volume (2) and the head piece (4) and at the same time forms part of a delimiting wall (29) of the discharge chamber (19), the spring element being configured to resiliently return the head piece (4) upon a movement from a starting position into an actuation position,
• wherein said spring element has, viewed in a cross section in which the head piece (4) is arranged vertically on a top and the storage volume (2) is arranged vertically on a bottom and a central longitudinal axis (x) of the dispenser (1) is illustrated in the form of a line, a lower tubular plug projection (38), which is accommodated in a conformingly shaped plug receptacle (12) connecting to the storage volume (2) in a sealed manner, and an upper retaining profile, which is accommodated in a retaining receptacle (31) of the head piece (4) in a sealed manner,
• wherein the spring element (22) is in the form of a leg (26), if the spring element (22) is designed integrally with the retaining projection (30) and the plug projection (38), referred to the cited cross section in the starting position, wherein the leg (26) is designed so as to connect to the plug projection (38) and transforms into the retaining projection (30) via an upwardly directed curvature (27),
• wherein the retaining profile is in the form of an altogether annular retaining projection (30), which in terms of cross section is larger than the leg (26) and has an upper projection base (35) that lies in the retaining receptacle (31) and has a closed cross section, and
• wherein the leg (26) transforms into the retaining projection (30) via a hinge-like taper (37).

A dispenser (1) for pasty compounds (M) comprising:

• a storage volume (2) with a delimiting part (5), which is configured to be moved conjointly when drawing from the storage volume (2),
• a head piece (4) that is guided relative to the storage volume (2),
• a discharge chamber (19) with an inlet valve (43) and an outlet valve (41) formed between the head piece (4) and the storage volume (2),
• a discharge channel (23) with a discharge opening (24), the discharge channel being assigned to the discharge chamber (19),
• a spring element (22), which acts between the storage volume (2) and the head piece (4) and at the same time forms part of a delimiting wall (29) of the discharge chamber (19), the spring element being configured to resiliently return the head piece (4) upon a movement from a starting position into an actuation position,
• wherein said spring element has, viewed in a cross section in which the head piece (4) is arranged vertically on a top and the storage volume (2) is arranged vertically on a bottom and a central longitudinal axis (x) of the dispenser (1) is illustrated in the form of a line, a lower tubular plug projection (38), which is accommodated in a conformingly shaped plug receptacle (12) connecting to the storage volume (2) in a sealed manner, and an upper retaining profile, which is accommodated in a retaining receptacle (31) of the head piece (4) in a sealed manner,
• wherein the spring element (22) is in the form of a leg (26), if the spring element (22) is designed integrally with the retaining projection (30) and the plug projection (38), referred to the cited cross section in the starting position, wherein the leg is designed so as to connect to the plug projection (38) and transforms into the retaining projection (30) via an upwardly directed curvature (27),
• wherein the retaining profile is in the form of an altogether annular retaining projection (30), which in terms of cross section is larger than the leg (26) and has an upper projection base (35) that lies in the retaining receptacle (31) and has a closed cross section, and
• wherein the retaining projection (30) forms a projection leg (36), which with respect to a transition area (U) between the upward leg (28) and the retaining projection (30) protrudes vertically downward and with respect to the central longitudinal axis (x) of the dispenser (1) extends radially outward to the upward leg (28) starting from the transition area (U).