Wireworking – Applying wire – Binder tightening and joining implements
Patent
1977-02-10
1977-12-13
Combs, E. M.
Wireworking
Applying wire
Binder tightening and joining implements
53135, 53198A, B21F 700, B21F 1500
Patent
active
040623831
ABSTRACT:
Bag tying apparatus for tying bags with a resilient tie. The apparatus comprises a tie wrapping plate and a tie twisting mechanism. The tie wrapping plate is linealy movable. The plate has a stepped groove which extends in the moving direction of the plate and an elongated recess which runs across the stepped groove. The resilient tie is placed on the bottom of the elongated recess, and bag is so positioned that its gathered neck to be tied is placed above the tie wrapping plate. As the plate is moved up by an air cylinder unit, the gathered neck of the bag is caught in the stepped groove of the plate. As the gathered neck of the bag enters the narrow section of the stepped groove, the resilient tie is gradually bent and finally substantially U-shaped.
The tie twisting mechanism comprises a twist shaft, a pair of twist hooks fixed to the lower end of the twist shaft, and a sprocket wheel secured to the upper end of the twist shaft. The sprocket wheel is turned by a chain the ends of which are connected to an air cylinder unit and a tension coil spring, respectively. The twist hooks engage with the respective ends of the U-shaped tie and twist the ends of the tie together when the sprocket wheel is turned, thereby tying the gathered neck of the bag with the resilient tie.
REFERENCES:
patent: 3138904 (1964-06-01), Burford
patent: 3261143 (1966-07-01), Platt et al.
patent: 3369573 (1968-02-01), Baker et al.
patent: 3398502 (1968-08-01), Halstead
patent: 3538960 (1970-11-01), Tetrick
patent: 3825039 (1974-07-01), Crabb
Combs E. M.
Meiko Commerce Co., Ltd.
Nagano Technical Service Co., Ltd.
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