BAG OPENING ARM STRUCTURE AND BAG OPENING DEVICE

Japanese Patent JP2017154778

A

PROBLEM TO BE SOLVED: To provide a bag opening arm structure in which a bag with a bag mouth having a separation cutting portion is not cut and separated in a step in which cutting and separation of the separation cutting portion are not intended.SOLUTION: A bag opening arm structure comprises: a first shaft 151 provided on a position facing a front face of a bag 91, and extends in a width direction of the bag 91; an extension/shrinkage arm 160 which is attached to the first shaft 151, and has an extension/shrinkage mechanism for extending and shrinking a linear distance from the shaft 151 to a tip end of the arm; and a tip end arm 155 which is provided to have an angle to a tip end of the extension/shrinkage arm 160. The tip end arm 155 passes the bag mouth 91d and moves inside of the bag 91 toward a bag bottom side of a height direction of the bag 91, by rotation of the extension/shrinkage arm 160, and the extension/shrinkage arm 160 extends and shrinks in halfway of rotation to approach to the bag mouth 91d, passes the bag mouth 91d with a tip end arm 155 and extends as entering a depth side of inside of the bag 91, then rotates in a direction of separating from the bag 91, for spreading the bag mouth 91d.SELECTED DRAWING: Figure 5

HIBINO MAHO

JP2016038958A

September 07, 2017

March 01, 2016

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NIIKURA KEIRYOKI KK

B65B67/12

JPH11189216A	1999-07-13
JPH07251818A	1995-10-03
JPH0733809U	1995-06-23
JPH09272519A	1997-10-21

US5765338A	1998-06-16
US5797245A	1998-08-25

Masashi Sahara
Kazuki Yokota

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