Bag opening apparatus and bag opening method
AssigneeToyo Jidoki Co., Ltd.
InventorsYuuki MATSUMURA, Kenji HAYASHI
Life of this patent
Estimating the term…
Abstract
A bag opening apparatus and a bag opening method capable of efficiently opening a bag body in a short period of time are provided. A bag opening apparatus includes a gap formation unit which bends at least a front wall portion, of the front wall portion and a back wall portion that constitute a mouth portion of a bag body, so as to form a gap. When a first press drive member presses a first holding unit against the front wall portion, a contact part of the first holding unit is swung against urging force of an urging part of the first holding unit to bend the front wall portion.
Claims17
A bag opening apparatus comprising a gap formation unit which bends at least a front wall portion, of the front wall portion and a back wall portion that constitute a mouth portion of a bag body, so as to form a gap between the front wall portion and the back wall portion, wherein:
- the gap formation unit includes a first holding unit and a first press drive member which moves the first holding unit between a position where the first holding unit is separated from the front wall portion and a position where the first holding unit is pressed against the front wall portion,
- the first holding unit includes a contact part, a support part which swingably supports the contact part, and an urging part which urges the contact part via the support part, and
- when the first press drive member presses the first holding unit against the front wall portion, the contact part is swung against urging force of the urging part while the contact part is in contact with the front wall portion so as to bend the front wall portion.
A bag opening method causing a bag opening apparatus to bend at least a front wall portion, of the front wall portion and a back wall portion that constitute a mouth portion of a bag body, so as to form a gap between the front wall portion and the back wall portion, wherein:
- the bag opening apparatus includes a gap formation unit having:
- a first holding unit;
- and a first press drive member which moves the first holding unit between a position where the first holding unit is separated from the front wall portion and a position where the first holding unit is pressed against the front wall portion,
- the first holding unit includes a contact part, a support part which swingably supports the contact part, and an urging part which urges the contact part via the support part, and
- the bag opening method includes a step of bending the front wall portion by causing the first press drive member to press the first holding unit against the front wall portion in such a manner that the contact part is swung against urging force of the urging part while the contact part is in contact with the front wall portion.
Dependencies are inferred from the claim text.