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US 6,745,542 B2Granted
Screw capper
AssigneeShibuya Kogyo Co., Ltd.
InventorSatoshi Masumoto
Life of this patent
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AssigneeShibuya Kogyo Co., Ltd.
InventorSatoshi Masumoto
Estimating the term…
A gripper includes grip members which are mounted on a first rotary shaft and a second rotary shaft, respectively, so as to be opened and closed. An engaging pawl is formed on an upper surface of the grip member. Both shafts are elevatable in an integral manner. A receptacle member is disposed below an exit star-wheel, and is arranged to rotate integrally with the star-wheel. The gripper is located below the flange of the vessel when receiving the vessel. Accordingly, the engaging pawl cannot contact the flange. When the vessel is depressed by the capping head during a capping operation, the engaging pawl engages the vessel. When the vessel is discharged, the vessel remains suspended above the receptacle member, and the gripper then descends to place the vessel on the receptacle member and to disengage the engaging pawl of the gripper. Accordingly, there is no scarring of the vessel when the vessel is introduced into and discharged from the screw capper, and a stable conveyance of vessels is enabled.
A screw capper having conveying means including a plurality of support members, each capable of supporting a lower surface of a flange formed around a mouth of a vessel, thus conveying the vessel as suspended by the support member, a capping head for engaging a cap and tightening the cap around the vessel as the vessel is conveyed while being suspended by the conveying means, and an engaging projection formed on an upper surface of the support member and engagable with the lower surface of the flange, the arrangement being such that when the capping head tightens the cap, the capping head depresses the vessel through the cap to cause the lower surface of the flange to be engaged with the engaging projection to prevent the vessel from rotating;
A vessel-capping device for closing an opening of a vessel comprising:
Dependencies are inferred from the claim text.