초록 ▼

The present invention refers to an automatic dosing device having motor overrunning absorbing means (36). The automatic dosing device according to the invention comprises a dosing screw (2), guiding means (20), a cursor (24), and a movable sealing member (30). The automatic dosing device is characte

The present invention refers to an automatic dosing device having motor overrunning absorbing means (36). The automatic dosing device according to the invention comprises a dosing screw (2), guiding means (20), a cursor (24), and a movable sealing member (30). The automatic dosing device is characterized by further comprising overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position.

대표청구항 ▼

The invention claimed is: 1. An automatic dosing device comprising: a storage chamber (7) for storing dispensable material, a dosing screw (2) housed in a housing (3), guiding means (20), a movable cursor (24) adapted to move a sealing member (30) which is adapted to tightly close a dispensable sub

The invention claimed is: 1. An automatic dosing device comprising: a storage chamber (7) for storing dispensable material, a dosing screw (2) housed in a housing (3), guiding means (20), a movable cursor (24) adapted to move a sealing member (30) which is adapted to tightly close a dispensable substance supply aperture (33) that is formed in the housing (3) and that is in communication with the storage chamber (7), and overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position, wherein said cursor (24) and said sealing member (30) are slidably coupled. 2. An automatic dosing device according to claim 1 wherein said overrunning absorbing means (36) are interposed between the cursor (24) and the sealing member (30). 3. An automatic dosing device according to claim 1 or 2 wherein said overrunning absorbing means (36) are in the form of a spring (37). 4. An automatic dosing device according to claim 1 wherein said cursor (24) is operatively associated to said guiding means (20). 5. An automatic dosing device comprising: a dosing screw (2), guiding means (20), a cursor (24) operatively associated to said guiding means (20), a movable sealing member (30), and overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position, wherein said cursor (24) and said guiding means (20) are reciprocally stressed by a spring (28). 6. An automatic dosing device comprising: a dosing screw (2), guiding means (20), a cursor (24), a movable sealing member (30), and overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position, wherein said guiding means (20) comprises a thread (22) adapted to engage a conjugated thread (23) provided in the cursor (24). 7. An automatic dosing device according to claim 1 wherein said guiding means (20), said cursor (24), said sealing member (30) and said dosing screw (2) are removably assembled. 8. An automatic dosing device according to claim 1 wherein said guiding means (20) and said dosing screw (2) are a single piece. 9. An automatic dosing device according to claim 8 wherein said cursor (24) and said sealing member (30) are formed each by two halves joined together. 10. An automatic dosing device according to claim 1, wherein said storage chamber (7) is provided with a frame (9) and an agitating member (13). 11. An automatic dosing device according to claim 10 wherein said agitating member (13) extends along the longitudinal axis of said storage chamber (7). 12. An automatic dosing device comprising: a dosing screw (2), guiding means (20), a movable sealing member (30), a cursor (24) adapted to move the sealing member (30), a storage chamber (7) for storing dispensable material, said chamber (7) being provided with a frame (9) and an agitating member (13), and overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position, wherein said agitating member (13) is adapted to be rotated in a first direction and said frame (9) is adapted to be rotated in a second direction opposite to said first direction. 13. An automatic dosing device comprising: a dosing screw (2), guiding means (20), a movable sealing member (30), a cursor (24) adapted to move the sealing member (30), a storage chamber (7) for storing dispensable material, said chamber (7) being provided with a frame (9) and an agitating member (13), and overrunning absorbing means (36) configured to be operable for preventing a force acting on the cursor (24) and exceeding a predetermined intensity to be transferred to the sealing member (30) independently of the sealing member position, wherein said agitating member (13) is stationary and said frame (9) is adapted to be rotated. 14. An automatic dosing device according to claim 10 wherein said agitating member (13) comprises at least one arm (16) extending transversely in respect to the longitudinal axis of said agitating member (13).