Powder removal device of medicine dispenser

Patent metadata

Field	Value
Publication number	US-9333541-B2
Application number	US-201113581515-A
Country	US
Kind code	B2
Filing date	Feb 25, 2011
Priority date	Mar 1, 2010
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A dispenser feeds tablets from a storing section to a packaging section. A tablet-adhered powder removal device is provided in a preparation section between the storing section and the packaging section. The preparation section has rotating open-top receiving portions, and the tablets for one package are fed to each receiving section. One side wall of each receiving section includes a fixed plate having a groove-ridge portion, while the opposite side wall includes a swing plate. The swing plate vibrates when a cam roller rides on protrusions during the rotation of the receiving portion. Due to the vibration, the powder adhered to the tablets between the plates is stripped and removed. The powder falls from a gap formed by opening the plates, and is discharged to the outside. When the cam roller rides on a cam, the swing plate is swung and drops the tablets in the receiving portion.

First claim

What is claimed is:

1. A powder removal device of a medicine dispenser for feeding a tablet dispensed from a tablet storing section having at least one tablet feeder to a tablet packaging section for packaging the tablet, the powder removal device interposed between the tablet storing section and the tablet packaging section to remove a tablet-adhered powder, the powder removal device comprising:
a top-opened receiving portion configured to receive a tablet for a package from the tablet storing section, the top-opened receiving portion being provided between the tablet storing section and the tablet packaging section;
a vibrating mechanism configured to vibrate the top-opened receiving portion; and
an opening and closing mechanism configured to open and close a bottom of the top-opened receiving portion,
wherein the bottom of the top-opened receiving portion has a gap, through which the tablet does not fall,
wherein the opening and closing mechanism is configured to widen the gap to an extent of permitting the tablet to fall, such that the tablet falls through the gap to the tablet packaging section,
wherein the opening and closing mechanism is further configured to widen the gap to an extent less than the extent of permitting the tablet to fall, such that the tablet-adhered powder removed from the tablet due to a vibration caused by the vibrating mechanism falls through the gap, and
wherein the opening and closing mechanism is further configured to widen and completely close the gap during the vibration caused by the vibrating mechanism.

2. The powder removal device of claim 1 , wherein the top-opened receiving portion includes a pair of opposing side wall plates disposed in a tapered shape,
wherein lower ends of the side wall plates have therebetween the gap through which the tablet does not fall, and
wherein the opening and closing mechanism is configured to move at least one of the side wall plates to an extent that the gap between the lower ends of the side wall plates permits the tablet to fall.

3. The powder removal device of claim 2 , wherein a plurality of the top-opened receiving portions are provided in a rotator at equal interval around a rotation center of the rotator,
wherein a first introducing inlet to the tablet packaging section opens in a portion of a rotation trajectory of each of the top-opened receiving portions, and
wherein a second introducing inlet, through which the tablet is to be introduced from the tablet storing section, is spaced along a rotation direction of the rotator from the first introducing inlet.

4. The powder removal device of claim 3 , wherein a roller is provided in a fixed member opposed to the rotator, the roller being in pressure contact with the rotator to restrain the vibration caused by the vibrating mechanism.

5. The powder removal device of claim 3 , wherein the at least one of the opposing side wall plates of the top-opened receiving portion is swingably supported at an upper end thereof and is biased by a spring in a direction of contacting the other side wall plate,
wherein the swingable side wall plate is contacted with and separated from a prominence and depression around the rotator, and
wherein the swingable side wall plate is swung while maintaining the gap, through which the tablet does not fall, to apply the vibration to the top-opened receiving portion.

6. The powder removal device of claim 5 , wherein a cam roller is provided in a swing shaft of the swingable side wall plate via an arm extending in a diametrical direction of the swing shaft, and
wherein the cam roller is contacted with and separated from the prominence and depression, to apply the vibration to the top-opened receiving portion.

7. The powder removal device of claim 6 , wherein the swingable side wall plate is swung to open and close the bottom of the top-opened receiving portion,
wherein a stopper is provided in the rotator to engage the swingable side wall plate such that the swingable side wall plate maintains the gap through which the tablet does not fall, and
wherein the stopper is configured to release an engagement to the swingable side wall plate when the gap between the lower ends of the side wall plates is widened by the opening and closing mechanism to the extent of permitting the tablet to fall.

8. The powder removal device of claim 6 , wherein the cam roller is configured to roll on a cam surface of a cam provided around the rotator to swing the side wall plates to widen the gap between the lower ends of the side wall plates to the extent of permitting the tablet to fall.

9. The powder removal device of claim 1 , wherein a powder collecting tray is provided below the gap of the bottom of the top-opened receiving portion for receiving the tablet-adhered powder of the tablet through the gap.

10. The powder removal device of claim 1 , wherein the at least one tablet feeder is configured to cut and divide the tablet.

11. A powder removal device of a medicine dispenser for feeding a tablet dispensed from a tablet storing section having at least one tablet feeder to a tablet packaging section for packaging the tablet, the powder removal device interposed between the tablet storing section and the tablet packaging section to remove a tablet-adhered powder, the powder removal device comprising:
a top-opened receiving portion configured to receive a tablet for a package from the tablet storing section, the top-opened receiving portion being provided between the tablet storing section and the tablet packaging section;
a vibrating mechanism configured to vibrate the top-opened receiving portion; and
an opening and closing mechanism configured to open and close a bottom of the top-opened receiving portion,
wherein the bottom of the top-opened receiving portion has a gap, through which the tablet does not fall,
wherein the opening and closing mechanism is configured to widen the gap to an extent of permitting the tablet to fall,
wherein the top-opened receiving portion includes a pair of opposing side wall plates disposed in a tapered shape,
wherein lower ends of the side wall plates have therebetween the gap through which the tablet does not fall,
wherein the opening and closing mechanism is configured to move at least one of the side wall plates to an extent that the gap between the lower ends of the side wall plates permits the tablet to fall,
wherein a plurality of the top-opened receiving portions are provided in a rotator at equal interval around a rotation center of the rotator,
wherein the at least one of the opposing side wall plates of the top-opened receiving portion is swingably supported at an upper end thereof and is biased by a spring in a direction of contacting the other side wall plate,
wherein the swingable side wall plate is contacted with and separated from a prominence and depression around the rotator, and
wherein the swingable side wall plate is swung while maintaining the gap, through which the tablet does not fall, to apply a vibration to the top-opened receiving portion.

12. The powder removal device of claim 11 , wherein a cam roller is provided in a swing shaft of the swingable side wall plate via an arm extending in a diametrical direction of the swing shaft, and
wherein the cam roller is contacted with and separated from the prominence and depression, to apply the vibration to the top-opened receiving portion.

13. The powder removal device of claim 12 , wherein the swingable side wall plate is swung to open and close the bottom of the top-opened receiving portion,
wherein a stopper is provided in the rotator to engage the swingable side wall plate such that the swing

Assignees

• Yasunaga Itsuo
• Koike Naoki
• Yuyama Mfg Co Ltd

Inventors

• Yasunaga Itsuo
• Koike Naoki

Classifications

• B65B39/002

  Pivoting plates · CPC title

• B65B55/00 Primary

  Preserving, protecting or purifying packages or package contents in association with packaging (by packaging under special atmospheric or gaseous conditions B65B31/00; devices for placing protecting sheets, plugs, or wads over contents B65B61/22) · CPC title

• G07F17/0092

  for assembling and dispensing of pharmaceutical articles (medical dispensers for private use, A61J7/00) · CPC title

• B08B7/02 Primary

  by distortion, beating, or vibration of the surface to be cleaned {(B08B7/0007 takes precedence)} · CPC title

• B65B9/06

  Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it · CPC title