# US 8,997,984 B2 · Layered structure for paper box

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- Number: US 8,997,984 B2
- Document ID: US8997984B2
- Status: Granted
- Kind: B2
- Application number: 13/943,883
- Filed: 2013-07-17
- Published: 2015-01-22
- Granted: 2015-04-07
- Earliest claimed: 2013-07-17
- Assignees: Golden Arrow Printing Co., Ltd.
- Applicants: Golden Arrow Printing, Co., Ltd.
- Inventors: Chien-Kuan Kuo; Chun-Huang Huang
- Web page: https://patentgrep.com/patent/US8997984B2

## CPC

- B65D 51/20: Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing {(B65D51/185 takes precedence; co-operating with an auxiliary container for additional articles or materials B65D51/28)}
- B65D 1/22: Boxes or like containers with side walls of substantial depth for enclosing contents {(B65D43/162, B65D81/02, B65D81/3813 take precedence)}
- B65D 25/04: Partitions
- B65D 25/10: Devices to locate articles in containers {(for protecting articles from mechanical damage B65D81/02)}
- B65D 43/0222: {only on the outside, or a part turned to the outside, of the mouth of the container (B65D43/0216 takes precedence)}
- B65D 2543/00194: square or rectangular
- B65D 2543/00268: Paper
- B65D 2543/00537: on the outside, or a part turned to the outside of the mouth of the container
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

A layered structure for a paper box includes an inner box, an outer cover and a carrying plate. The inner box is formed with a first opening, and a stepped surface is formed at the inner edge of the first opening. The outer periphery of the carrying plate is formed with a flange, and the carrying plate is disposed in the first opening and the flange thereof is supported by the stepped surface. The outer cover is formed with a second opening, the second opening is sleeved with the first opening, and the outer cover is served to cover the first opening and cover outer sides of the inner box. Because the stepped surface is integrally formed in the inner box, the manufacture procedure of the layered structure for a paper box can be simplified thereby reducing material stock and lowering production cost.

## Claims

### Claim 1

A layered structure for a paper box, including:
an inner box formed with a first opening, wherein a stepped surface is formed at the inner edge of the first opening;
a carrying plate, wherein the outer periphery thereof is formed with a flange, and the carrying plate is disposed in the first opening and the flange is supported by the stepped surface; and
an outer cover formed with a second opening, wherein the second opening is sleeved with the first opening, and the outer cover is served to cover the first opening and to cover outer sides of the inner box,
wherein four corners of the inner box are respectively formed with a first fillet angle,
wherein four corners of the outer cover are respectively formed with a second fillet angle, and
wherein the radius of the first fillet angle is larger than the radius of the second fillet angle.

### Claim 2 (depends on 1)

The layered structure for a paper box according to claim 1, wherein the lateral wall of the inner box is outwardly inclined for forming a draft angle.

### Claim 3 (depends on 2)

The layered structure for a paper box according to claim 2, wherein the draft angle is between 1 to 2 degrees.

### Claim 4 (depends on 1)

The layered structure for a paper box according to claim 1, wherein the physical thickness of the carrying plate is between 1 mm to 1.5 mm.

### Claim 5 (depends on 4)

The layered structure for a paper box according to claim 4, wherein the width of the flange is between 1.5 mm to 2 mm.

### Claim 6 (depends on 1)

The layered structure for a paper box according to claim 1, wherein the carrying plate is formed with a through hole.