Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
485 words
A high speed packaging device comprising: a. means for feeding a heat sealable film to a rotary sealingfilling device from the direction of one tangent of the device by progressively folding the film longitudinally in half so as to make the upper open edges of the folded film face upwardly; b. the rotary sealing-filling device comprising a rotary drum having a plurality of freely openable and closable plate-shaped sealers mounted at equal spaces thereon, a bottomed cylindrical hopper for feeding a material, said hopper being disposed on the upper part of said drum so as to be rotatable eccentrically and synchronously with respect to said rotary drum and having openings of pre-determined size for the material to be filled formed at equal spaces along the circumferential edge of the bottom thereof, and a plurality of material dropping spouts disposed immediately below said openings and freely elevatably along the circumference of said rotary drum and being rotatable together with said rotary drum; c. top sealers to continuously seal the top upper open edges of a chain of filled pouches pulled out from the tangential direction opposite to the direction of feeding said folded film by said rotary sealing-filling device, said sealers mounted on said rotary drum clamping the folded film fed from one tangential direction of the rotary drum in the position in which said film is fed, closing said film only during the period of time during which said film is transferred within the range of a certain arc of the circle described by the locus of rotational movement of said sealers, pulling and taking over said film and effecting vertical seals at equal spaces at right angles with the longitudinal direction of said film and keeping said folded film opened within the other remaining locus of rotational movement, said spouts moving down from above the open edges of said folded film before said film fed from the tangential direction of said rotary drum is caught by said sealers and brought into a fully folded shape, and being inserted into the interior of the film and being guided linearly together with said film to a position of point of contact between said film and said rotary drum, said openings of said hopper forming an inscribed circle with respect to a part of the locus of rotational movement of said spouts and said openings and said spouts overlapping with each other in a certain sector range within which said film is separated from the sealers after completion of said vertical sealing, said openings being opened only when the openings and the spouts are placed in an overlapped position and the spouts underlying said openings dropping and feeding the material to be filled into the interior of sealed pouches clamped by said sealers kept closed, said top sealers being designed To pull and take over a chain of filled pouches left released from clamping by said sealers.
Claim 2
Dependent Claim
485 words
A high speed packaging device comprising: a. means for feeding a heat sealable film to a rotary sealingfilling device from the direction of one tangent of the device by progressively folding the film longitudinally in half so as to make the upper open edges of the folded film face upwardly; b. the rotary sealing-filling device comprising a rotary drum having a plurality of freely openable and closable plate-shaped sealers mounted at equal spaces thereon, a bottomed cylindrical hopper for feeding a material, said hopper being disposed on the upper part of said drum so as to be rotatable eccentrically and synchronously with respect to said rotary drum and having openings of pre-determined size for the material to be filled formed at equal spaces along the circumferential edge of the bottom thereof, and a plurality of material dropping spouts disposed immediately below said openings and freely elevatably along the circumference of said rotary drum and being rotatable together with said rotary drum; c. top sealers to continuously seal the top upper open edges of a chain of filled pouches pulled out from the tangential direction opposite to the direction of feeding said folded film by said rotary sealing-filling device, said sealers mounted on said rotary drum clamping the folded film fed from one tangential direction of the rotary drum in the position in which said film is fed, closing said film only during the period of time during which said film is transferred within the range of a certain arc of the circle described by the locus of rotational movement of said sealers, pulling and taking over said film and effecting vertical seals at equal spaces at right angles with the longitudinal direction of said film and keeping said folded film opened within the other remaining locus of rotational movement, said spouts moving down from above the open edges of said folded film before said film fed from the tangential direction of said rotary drum is caught by said sealers and brought into a fully folded shape, and being inserted into the interior of the film and being guided linearly together with said film to a position of point of contact between said film and said rotary drum, said openings of said hopper forming an inscribed circle with respect to a part of the locus of rotational movement of said spouts and said openings and said spouts overlapping with each other in a certain sector range within which said film is separated from the sealers after completion of said vertical sealing, said openings being opened only when the openings and the spouts are placed in an overlapped position and the spouts underlying said openings dropping and feeding the material to be filled into the interior of sealed pouches clamped by said sealers kept closed, said top sealers being designed To pull and take over a chain of filled pouches left released from clamping by said sealers.
Claim 3
Dependent Claim
83 words
A high speed packaging device according to claim 1 wherein each of said sealers mounted on the rotary drum includes an L-shaped piece fixed to the circumference of the rotary drum and an L-shaped movable piece, said movable piece being raised into closed relationship with respect to said L-shaped fixed piece when the movable piece travels along the rail laid over a certain range of the locus of rotational movement and being kept opened when the movable piece is disengaged from said rail.
Claim 4
Dependent Claim
120 words
A high speed packaging device according to claim 1 wherein said spouts are connected through arms to shafts adapted to be freely raised and lowered with respect to the rotary drum, said shafts being raised by a cam follower and an end cam, said arms being swung and jutting out partially from the locus of rotational movement while being rotated by the arms abutting against a deflection plate mounted independently of said rotary drum, and said spouts being designed to be moved down from above the upper open edges of the film into the interior thereof before the folded film is guided to the position of point of contact of the rotary drum and brought into a fully closed state.
Claim 5
Dependent Claim
48 words
A high speed packaging device according to claim 1 wherein said material supply hopper has a scraper disposed inside, said scraper partitioning the inside of the hopper into the area in which said openings move from an open state to a closed state during rotation of said hopper.
Claim 6
Dependent Claim
27 words
A high speed packaging device according to claim 1 wherein said openings are opened and closed by a blind plate fixed to the underside of the hopper.
Claim 7
Dependent Claim
23 words
A high speed packaging device according to claim 1 wherein said means for feeding a heat sealable film is a bugle-shaped folding guide.
Claim 8
Dependent Claim
82 words
A high speed packaging device according to claim 1 wherein each of said spouts is provided with a shaft supporting the spout and a leg projecting from said shaft intermediately thereof and a roller mounted on the end of said leg, said roller being rolled within an endless grooved cam to thereby raise and lower the spout, the direction of said cam facing said roller being in the same horizontal direction with that of said roller but being suitably varied in height.
Claim 9
Dependent Claim
174 words
A high speed packaging device according to claim 1 wherein each of said spouts is provided with a shaft supporting the spout, a lever connected to the lower end of said shaft, and a leg projecting downwardly of the other end of said lever and a roller mounted on the lower end of said leg, said spout being rotated around the rotary drum by rolling said roller within an endless grooved cam, said endless grooved cam being, however, swung out and curved slightly outwardly in the position in which the folded film is fed from the tangential direction of the rotary drum, rolling of said roller within said curved portion twisting said shaft outwardly to thereby swing said spout outwardly from the circle of locus of rotational movement and feed the spout, said spout moving down from above the upper open edges of the folded film and being inserted thereinto before the folded film is guided to the position of point of contact of the rotary drum and brought into a fully closed state.
Claim 10
Dependent Claim
130 words
A high speed packaging device according to claim 1 wherein each of said sealers mounted to the rotary drum include an L-shaped fixed piece secured to the circumference of the rotary drum and an L-shaped movable piece pivotally mounted on one end of said fixed piece, said movable piece having a leg projecting at the end thereof, said leg having a roller mounted at the end thereof, said movable piece being brought into a closed or opened relation with said fixed piece by said roller being rolled inside an endless grooved cam, said cam facing said roller being horizontal in direction when said movable piece is closed with respect to said fixed piece and being vertical in direction when said movaBle piece is opened with respect to said fixed piece.