Title:
PAPER CORNER PROTECTOR
Kind Code:
A1


Abstract:
A paper corner protector includes a corner reinforcement body (1) which consists of a cardboard (2) and a cavity (3), wherein the cavity (3) is formed by folding the cardboard (2) end to end. The present utility model enhances the convenience of cost during its transportation and decreases its storage space. Furthermore, a Kraft board is used as the raw material, which is recoverable and reusable and has water-absorbing capacity, so it meets the requirement of environmental protection. It can be expediently folded to become packaging corner protectors so as to be placed on the corners of a packing container such that it can provide favorable protective actions to the corners of the product in the container, such as buffer action, shockproof action and moisture proof action.



Inventors:
Wu, Quanqing (Guangdong, CN)
Yang, Nizhen (Guangdong, CN)
Application Number:
12/312572
Publication Date:
03/25/2010
Filing Date:
04/13/2007
Primary Class:
International Classes:
B65D85/30
View Patent Images:
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Primary Examiner:
ACKUN, JACOB K
Attorney, Agent or Firm:
DAVID AND RAYMOND PATENT FIRM (108 N. YNEZ AVE., SUITE 128, MONTEREY PARK, CA, 91754, US)
Claims:
What is claimed is:

1. A paper corner protector, comprising a corner reinforcement body formed by folding a cardboard edge-to-edge and defined an empty cavity between inner and outer board walls of said corner reinforcement body, wherein the space between said two board walls is empty to form said cavity.

2. The paper corner protector, as recited in claim 1, wherein said corner reinforcement body has a L-shaped cross section.

3. The paper corner protector, as recited in claim 1, wherein said corner reinforcement body has a U-shaped cross section.

4. The paper corner protector, as recited in claim 1, wherein said corner reinforcement body has a U-shaped cross section, wherein one side longitudinal wall of said corner reinforcement body is higher than an opposed side longitudinal wall of said corner reinforcement body.

5. The paper corner protector, as in claim 1, 2, 3, or 4, wherein said corner reinforcement body further has a reinforcement bouncing groove indently and longitudinally formed at an outer side of said outer board wall for preventing the deformation of said corner reinforcement body.

6. The paper corner protector, as recited in claim 5, wherein an apex of said reinforcement bouncing groove is biased against said inner board wall for applying a bouncing force against said inner board wall to retain a distance between said outer and inner board walls.

7. The paper corner protector, as in claim 2, 3, or 4, further comprising a reinforcing bouncer disposed within said cavity for reinforcing the structure of said corner reinforcement body.

8. The paper corner protector, as recited in claim 7, wherein said reinforcing bouncer has a longitudinal tubular structure and is made of paper to fit between the inner and outer board walls.

9. The paper corner protector, as recited in claim 8, wherein two said reinforcing bouncers are disposed within said cavity of said corner reinforcement body having a L-shaped cross section, wherein said two reinforcing bouncers are disposed within said cavity of the corner reinforcement body within an opposite portion and an adjacent portion thereof respectively, wherein a force transmitting link, which is made of paper, is coupled between said two reinforcing bouncers within said cavity of said corner reinforcement body.

Description:

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to a corner protector, and more particularly to a paper made corner protector, which is able to be affixed at each of the interior edges of a packing container to protect home appliances or electrical products for shipping and handling.

2. Description of Related Arts

While transporting home appliances or electrical products, a plurality of corner protectors are commonly provided at each of the edges or corners in the packing box, in order to prevent any damage of the products due to an external force while transporting. Accordingly, the protection corners are made by foam material such as Styrofoam or foam type material, to securely transport the products by its characteristic of absorbing shocks.

Although the above corner protectors, made of Styrofoam or plastic foam materials, have good buffer and shock absorbing ability, the raw material, i.e. the Styrofoam or plastic foam, is not designed for recycling. Also, the plastic chemical material of the corner protector is difficult to be naturally degraded, and will generate a poisoned gas to the environment after the combustion processing, so as to harm the human body and the environment.

On the other hand, the corner protectors made by the Styrofoam or plastic foam material for buffering are light in weight. However, after the shaping process, the foam material of the corner protectors has a fixed shape that normally requires a considerable larger storing space. Therefore, the manufactory needs to prepare a larger storage for stocking. Furthermore, the size of the corner protectors made by Styrofoam or plastic foam materials is bulky. However, the loading capacity of the truck for transporting is limited. In other words, it requires relatively more rides for distributing the corner protectors by the truck, so as to raise the transportation cost. Also, the Styrofoam or plastic foam materials of the corner protectors do not have a good water absorbing ability. Thus, those types of corner protectors cannot provide the moisture-proof protection for the electrical products.

SUMMARY OF THE PRESENT INVENTION

A main object of the present invention is to provide a paper corner protector to overcome the shortages of the existing techs. Using the recyclable Kraft paper cardboard as the raw material, the present invention not only forms a corner reinforcement for using at the interior corners of a packing container by conveniently folding the Kraft paper, but also provides a good buffer, shockproof, and moisture proof at each of the interior corners or edges of a product packed within the packing container. The paper corner protector also meets the criteria of environmental protection, and can be conveniently transported, so as to reduce the transportation cost.

Accordingly, in order to accomplish the above object, the present invention adapts the following techniques to practice the present invention.

A corner protector, which is made of paper, comprises a corner reinforcement body formed by folding a cardboard edge-to-edge and defined an empty cavity between two board walls of the corner reinforcement body, wherein the space between the two board walls is empty to form said cavity.

The corner reinforcement body has a “L” shaped cross section.

Alternatively, the corner reinforcement body has a “U” shaped cross section.

Alternatively, the corner reinforcement body has a “U” shaped cross section, wherein one side longitudinal wall of the “U” shaped corner reinforcement body is higher than the opposed side longitudinal wall of the “U” shaped corner reinforcement body.

The corner reinforcement body further has a reinforcement bouncing groove indently and longitudinally formed at the outer side of the outer board wall of the corner reinforcement body for preventing the deformation of the corner reinforcement body.

The apex of the reinforcement bouncing groove is arranged to bias against the inner board wall for applying a bouncing force against the inner board wall to retain a distance between the outer and inner board walls.

The corner protector further comprises at least one reinforcing bouncer disposed within the cavity.

The reinforcing bouncer has a longitudinal tubular structure and is made of paper to fit between the inner and outer board walls.

For the corner reinforcement body having a L-shaped cross section and defining an opposite portion and an adjacent portion to form a right angled configuration, two reinforcing bouncers are applied to the L-shaped corner reinforcement body. The two reinforcing bouncers are disposed within the cavity of the corner reinforcement body within the opposite portion and the adjacent portion thereof respectively. A force transmitting link, which is made of paper, is coupled between the two reinforcing bouncers within the cavity of the corner reinforcement body.

The present invention has the following advantages: the paper corner protector can increase the convenience of transportation while transporting and reduce the transportation cost and storage space. Using the recyclable Kraft board as the cardboard of the corner protector meets the criteria of environment protection, and can be conveniently folded to form the corner protector for using in the corners or edges within the packing container. It also provides a good buffering and shockproof at each of the corners or edges of a product packed within the packing container. The reinforcement bouncing groove is integrally formed by indently folding the outer board wall of the corner reinforcement body to reinforce the structure between the outer and inner board walls. The apex of curve-shaped reinforcement bouncing groove is further inwardly extended to bias against the inner board wall within the cavity to enhance the resistance of pressure by means of bouncing force. The longitudinal tubular shaped reinforcing bouncer has high pressure resistance when the reinforcing bouncer is disposed in the cavity.

These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a paper corner protector according to a first preferred embodiment of the present invention.

FIG. 2 is a perspective view of a paper corner protector according to a second preferred embodiment of the present invention.

FIG. 3 is a perspective view of a paper corner protector according to a third preferred embodiment of the present invention.

FIG. 4 is an A-A cross sectional view of the paper corner protector according to the above third preferred embodiment of the present invention.

FIG. 5 is a top view of a corner paper protector according to a fourth preferred embodiment of the present invention.

FIG. 6 is a B-B cross sectional view of the paper corner protector according to the above fourth preferred embodiment of the present invention.

FIG. 7 is a perspective view of the paper corner protector according to the above fourth preferred embodiment of the present invention.

FIG. 8 is a top view of a corner paper protector according to a fifth preferred embodiment of the present invention.

FIG. 9 is a C-C cross sectional view of the corner paper protector according to the above fifth preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The followings with the accompany drawings give further detail description of the present invention. Referring to FIG. 1 of the drawings, a paper corner protector according to a first preferred embodiment of the present invention is illustrated, wherein the corner protector, which is made of paper, comprises a corner reinforcement body 1 formed by folding a cardboard 2 edge-to-edge and defined an empty cavity 3 between two board walls of the corner reinforcement body 1. The corner reinforcement body 1 has a U-shaped cross section.

FIG. 2 illustrates a second embodiment of the present invention, wherein the to corner protector, which is made of paper, comprises a corner reinforcement body 1 formed by folding a cardboard 2 edge-to-edge and defined an empty cavity 3 between two board walls of the corner reinforcement body 1. The corner reinforcement body 1 has a U-shaped cross section. The corner reinforcement body 1 further has a reinforcement bouncing groove 4 indently and longitudinally formed at each of the outer board walls of the corner reinforcement body 1 for preventing the deformation of the corner reinforcement body 1.

FIGS. 3 and 4 illustrate a third embodiment of the present invention as an alternative mode of the second embodiment, wherein the corner protector has a U-shaped cross section. One side longitudinal wall of the U-shaped corner reinforcement body 1 is higher than the opposed side longitudinal wall of the U-shaped corner reinforcement body 1. An indention slot 5 is formed between the two side longitudinal walls of the U-shaped corner reinforcement body 1. The reinforcement bouncing groove 4 is indently and longitudinally formed at each of the outer board walls of the corner reinforcement body 1 for preventing the deformation of the corner reinforcement body 1.

FIGS. 5, 6, and 7 illustrate a fourth embodiment of the present invention, wherein the corner protector, which is made of paper, comprises a corner reinforcement body 1 formed by folding a cardboard 2 edge-to-edge and defined an empty cavity 3 between two board walls of the corner reinforcement body 1, such that the space between the two board walls is empty to form the cavity 3. The corner reinforcement body 1 has a L-shaped cross section. The corner protector further comprises at least one reinforcing bouncer 6 disposed within the cavity 3. The reinforcing bouncer 6 has a longitudinal tubular structure and is made of paper. For the corner reinforcement body 1 having a L-shaped cross section and defining an opposite portion and an adjacent portion to form a right angled configuration, two reinforcing bouncers 6 are applied to the L-shaped corner reinforcement body 1. The two reinforcing bouncers 6 are disposed within the cavity 3 of the corner reinforcement body 1 within the opposite portion and the adjacent portion thereof respectively. A force transmitting link, which is made of paper, is integrally coupled between the two reinforcing bouncers 6 within the right angled portion of the cavity of the corner reinforcement body 1 for evenly distributing the force from one reinforcing bouncer 6 to another reinforcing bouncer 6.

FIGS. 8 and 9 illustrate a fifth embodiment of the present invention, wherein the corner protector, which is made of paper, comprises a corner reinforcement body 1 formed by folding a cardboard 2 edge-to-edge and defined an empty cavity 3 between two board walls of the corner reinforcement body 1, such that the space between the two board walls is empty. The corner reinforcement body 1 has a L-shaped cross section. The reinforcement bouncing groove 4, having a curved shape, is indently and longitudinally formed at each of the outer board walls of the corner reinforcement body 1 for preventing the deformation of the corner reinforcement body 1. The apex of the reinforcement bouncing groove 4 is arranged to bias against the inner board wall for applying a bouncing force against the inner board wall to retain a distance between the outer and inner board walls.

One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.

It will thus be seen that the objects of the present invention have been fully and effectively accomplished. The embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.