# US 10,766,649 B2 · Vacuum device for bag

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- Number: US 10,766,649 B2
- Document ID: US10766649B2
- Status: Granted
- Kind: B2
- Application number: 15/770,782
- Filed: 2016-10-26
- Published: 2018-11-08
- Granted: 2020-09-08
- Earliest claimed: 2015-10-26
- Assignees: Rollpack Co., Ltd.
- Applicants: Rollpack. Co., Ltd.
- Inventors: Kum-Ja Kim
- Web page: https://patentgrep.com/patent/US10766649B2

## CPC

- B65B 31/047: {the nozzles co-operating with a check valve in the opening of the container or wrapper}
- B65B 31/048: {specially adapted for wrappers or bags}
- B65B 31/02: Filling, closing, or filling and closing, containers {or wrappers} in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B 31/024: {specially adapted for wrappers or bags (B65B31/021, B65B31/022 take precedence)}
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)

## Abstract

A vacuum device according to the present invention may comprise: a vacuum unit for suctioning air from inside a packaging back through a check valve of the packaging back, thereby generating a vacuum therein; and a clamping unit provided on the vacuum unit so as to clamp the packaging back such that the check valve of the packaging back airtightly communicates with an air suction portion of the vacuum unit.

## Claims

### Claim 1

A vacuum device comprising:
a vacuum unit sucking air from inside a packing bag through a check valve of the packing bag to evacuate the packing bag; and
a clamping unit provided at the vacuum unit and clamping the packing bag such that the check valve of the packing bag airtightly communicates with an air suction part of the vacuum unit,
wherein the clamping unit includes:
a first support plate having a connection hole to which the air suction part is connected; and
a second support plate connected to be in close contact with the first support plate,
wherein when the first support plate is moved to the second support plate to press the second support plate, the check valve of the packing bag positioned between the first support plate and the second support plate airtightly communicates with the connection hole,
further comprising:
an operation unit installed on one side portion of the vacuum unit and electrically associated with the vacuum unit to sense clamping of the packing bag by the clamping unit to operate the vacuum unit,
wherein the operation unit includes a sensing unit sensing movement of the first support plate to the second support plate or sensing the packing bag disposed between the first support plate and the second support plate when the first support plate is moved to the second support plate to press the second support plate,
wherein the sensing unit protrudes and moves upon being pushed by the packing bag disposed between the first support plate and the second support plate, when the first support plate is moved to the second support plate to press the second support plate,
wherein a sensing releasing unit, which includes an operation releasing recess to which the sensing unit is inserted when the first support plate is moved to the second support plate to press the second support plate, when the packing bag is absent between the first support plate and the second support plate, is installed on one side portion of the second support plate.

### Claim 2 (depends on 1)

The vacuum device of claim 1, wherein the first support plate is hinge-coupled to the second support plate.

### Claim 3 (depends on 2)

The vacuum device of claim 2, wherein a torsion spring is installed at a hinge shaft in a portion in which the first support plate and the second support plate are hinge-coupled, to elastically press the first support plate against the second support plate.

### Claim 4 (depends on 2)

The vacuum device of claim 2, wherein
the clamping unit further includes a rest part extending from the hinge-coupled side at the second support plate or a rest plate installed on a side of the second support plate opposing the side to which the first support plate is coupled, to prevent shaking when the first support plate rotates.

### Claim 5 (depends on 1)

The vacuum device of claim 1, wherein a friction pad is mounted on at least one of corresponding surfaces of the first and second support plates.