KR20070088222A - Container and cushion device - Google Patents

Abstract

A packing container and a cushioning device are provided to protect a display panel or a glass substrate against external force applied to the front side by a cushioning protection device and to reduce the volume by making a cushioning unit light and thin. A packing container for packaging at least one display panel(50) having a display unit(501) is composed of a body(10); a lower fixing unit(20) installed at the bottom of the body; an upper fixing unit(30) installed at the upper part of the body, wherein the display panel is settled between the upper and lower fixing units; and at least one cushioning unit(40) installed between the body and the display unit of at least one display panel. At least one cushioning unit has a damping coefficient higher than that of the upper and lower fixing units and contains a cushioning structure. At least one cushioning unit is installed correspondently to the display unit of at least one display panel.

Description

PACKAGING CONTAINER AND SHOCK ABSORBER {CONTAINER AND CUSHION DEVICE}

1 is an exploded explanatory view of a packaging container according to the present invention.

Figure 2 is a three-dimensional explanatory view showing another embodiment of the buffer unit according to the packaging container of the present invention.

3A is an explanatory diagram showing a buffer unit which is an embodiment of the present invention.

3B is an explanatory view showing a buffer unit according to another embodiment of the present invention.

4A is an explanatory diagram showing a buffer unit according to another embodiment of the present invention.

4B is an explanatory view of FIG. 4A viewed from another angle.

5A is an explanatory diagram showing a buffer unit according to another embodiment of the present invention.

5B is an explanatory view of FIG. 5A viewed from another angle.

6 is an explanatory view showing a body which is another embodiment of the present invention.

7 is a diagram illustrating a situation in which deformation occurs in a display panel packaged in a packaging container according to the present invention.

8 is a correlation explanatory view showing the structure of a conventional display device packaging container.

* Description of the symbols for the main parts of the drawings *

10: body 101: fixing part 20: lower fixing part

30: upper fixing part 40, 41, 42, 43, 44: buffer part 411, 421: protrusion

412, 422: top 413, 423: bottom 431: protrusion

50: display panel 501: display unit

a: center part b: peripheral part

The present invention relates to a packaging container, and more particularly to a packaging container of a display panel (display panel).

As the technology develops, the display device is continuously developing from the conventional cathode ray tube (CRT). Among them, liquid crystal displays (LCDs) have the advantages of being thin and light, low power consumption, and low radiation type, and thus gradually become universally used. For LCDs with large screens (for example, 42 inches or more) The demands of consumers are steadily increasing.

Whether the liquid crystal display is a glass substrate, a semi-finished product or a finished liquid crystal display, the liquid crystal display should be packaged and transported in a safe packaging container during the transportation process to protect it from collision or damage that may occur during the transportation process. 8 shows a conventional display device packaging container structure 90 having two fixing parts 91 and 92. Two insertion parts 911 and 921 corresponding to each other are formed in the two fixing parts 91 and 92 so that a display panel or a glass substrate is accommodated between the two insertion parts 911 and 921. Both sides of the two fixing parts 91 and 92 are provided with shock absorbing parts 912 and 922, respectively, to absorb the impact force. However, under the structure as described above, both sides of the display panel or the glass substrate inserted into the inserting portions 911 and 921 are locally supported, and other portions are not supported, and thus the effects of shock and vibration mitigation are inferior. Panels in close proximity to the body are greatly affected by shock and vibration during the transport process.

In addition, the display panel or the glass substrate has its own weight. In the rectangular display panel or the glass substrate, the weight is concentrated in the geometric center of the display panel or the glass substrate. For rectangular glass substrates, the geometric center is the intersection of both diagonals. When the glass substrate is in a stationary state, fine curvature deformation may occur in the glass substrate panel due to its own weight. Therefore, such a deformation of the display panel or the glass substrate cannot be prevented by only the configuration of the conventional display panel packaging container. Therefore, when the display panel or the glass substrate is placed in the packaging container for a long time, the display panel or the glass substrate is deformed due to the deformation. May cause problems in quality. In other words, since the display panel or the glass substrate is easily damaged by the vibration during transportation, the conventional packaging container cannot act to alleviate the impact and reduce the vibration. The above contents can also be confirmed by the following experimental values.

If the container falls, the area where the display panel wrapped in the container will be impacted.                     G value Left side -25.45 Right side 30.08 Bottom 29.35 Top -30.77 Front 189.88 back side -55.38

The above table is a numerical table of the drop test, the contents of which are measured values for the six-side of the 37-inch display panel packaged in a packaging container. The numerical values in the table show dynamic cushioning characteristics. Under certain static stresses (kg / cm 2), the G value represents the acceleration ratio that a certain area of the object receives at the moment of impact (G = a / g Where ± represents the instantaneous acceleration of the object, corresponding to the direction of the Earth's central attraction; a is the acceleration of the object; g is the acceleration of gravity). As can be seen from the above figures, the G value is maximized at the front (front) of the display panel, which is the most prominent impact force on the object from the front, and most easily damage the display panel or glass substrate. Indicates that it can.

An object of the present invention is to solve the problems such as deformation and damage encountered when the display panel or glass substrate described above is packaged in a packaging container.

In addition, the present invention can be applied to absorb the external force applied to the front, back and each side of the main body of the packaging and to add a buffer, in particular to protect the display panel or glass substrate from the external force applied to the front In order to add good cushioning protection. At the same time, since the buffer structure of the present invention is relatively light and thin, the space of the packaging container to occupy is small, so that the transportation volume can be reduced, and the transportation cost can be achieved.

The packaging container provided by the present invention for achieving the above object is to wrap at least one display panel, and comprises a body, a lower fixing part, an upper fixing part and one or more buffer parts, wherein the lower fixing part is the body. The upper fixing part is mounted on the upper part of the body, the display panel is received between the upper fixing part and the lower fixing part, and the at least one buffer part is formed of the body and the at least one display panel. It is mounted between the display units.

The packaging container according to the present invention is in direct contact with the buffer unit and the display unit (particularly the geometric center of the display panel) of the display panel, and the display panel (especially a large screen panel) is effectively transported by the support of the buffer unit. This eliminates the problem of deformations encountered during the process. That is, when a collision occurs, the buffer part directly absorbs the impact energy to prevent damage to the display panel, thereby achieving the purpose of protection.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded explanatory view of a packaging container according to the present invention, as shown in the present invention, the body 10, the lower fixing portion 20, the upper fixing portion 30 and one or more buffer portion (40) ), The lower fixing part 20 is mounted to the bottom of the body 10, and the upper fixing part 30 is mounted to the upper part of the body.

The packaging container of the present invention is used to wrap at least one display panel 50, wherein the at least one display panel 50 is received between the upper fixing portion 30 and the lower fixing portion 20, At least one display panel 50 includes a display unit 501, and the buffer unit 40 is mounted between the body 10 and the display unit 501 of the at least one display panel 50. Among them, the damping coefficient of the buffer part 40 is larger than the damping coefficients of the upper fixing part 30 and the lower fixing part 20, thereby providing a buffering effect, and at least one display panel ( 50) the purpose of protection is achieved. The upper fixing portion 30 and the lower fixing portion 20 may be made of polyethylene (PE) or the like, and the buffer unit 40 may be made of polyurethane (PU) or the like, and the upper fixing portion ( 30), the combination of the lower fixing portion 20 and one or more buffer portion 40 may constitute a kind of buffer means.

Figures 2 and 3a is a three-dimensional explanatory explanatory view showing another embodiment of the buffer unit according to the packaging container of the present invention shows a buffer unit 41 of a different type from the embodiment described above, Figures 2 and 3a As shown, the buffer unit 41 has one buffer structure, and the buffer structure and the display unit 501 of the at least one display panel 50 are mounted equally to each other to provide an excellent buffering effect. do. The buffer structure includes a plurality of protrusions 411, each of the plurality of protrusions 411 having an upper portion 412 and a bottom portion 413, the cross-sectional area of the upper portion 412 being the lower portion of the bottom portion 413. Less than the cross-sectional area In addition, Figure 3b is an explanatory view showing another embodiment of the buffer unit, as shown, the buffer structure of the buffer unit 42 of the type includes a plurality of protrusions 421, the plurality of protrusions ( 421 each has an upper portion 422 and a lower portion 423, the cross-sectional area of the upper portion 422 is equal to the cross-sectional area of the lower portion 423, and the buffer portion 42 has a central portion a and the central portion ( It has a peripheral portion (b) surrounding the a). The height of the corresponding projection 421 of the central portion (a) is higher than the height of the projection 421 of the peripheral portion (b); As a result, when the shock absorbing part 42 supports the display part 501, the corresponding protrusion 421 of the center part a is relatively high, thereby providing a support effect to the display part 501. In other words, the buffer 42 is in direct contact with the geometric center of the display panel 50 to effectively prevent the problem of deformation that the display panel 50 (particularly the large display) faces during the transportation process.

4A and 4B are explanatory views showing yet another embodiment of the present invention. As shown, the buffer structure of the buffer unit 43 of the type includes a plurality of protrusions 431. The buffer unit 43 has a central portion and a peripheral portion (b) surrounding the central portion (a), the height of the protrusion 431 formed in the central portion (a) is formed higher than the height of the peripheral portion (b), the above-described effect Will be further strengthened.

5A and 5B are explanatory diagrams showing another embodiment of the present invention, and the buffer unit 44 of the type is integrally formed with any one of the upper fixing unit 30 and the lower fixing unit 20. However, the damping coefficient of the buffer unit 44 is larger than the damping coefficients of the upper and lower fixing parts, thereby providing a good buffering effect.

6 is an explanatory view showing a body which is another embodiment of the present invention, as shown, the body 10 is provided with one or more position fixing portion 101, one or more in the body 10 The display panel 50 is mounted so as to face the display unit (not shown). Since the one or more buffer parts 41 support the one or more position fixing parts 101 and the display unit 501 while being positioned by one or more position fixing parts 101, the positions are eventually determined. The fixing unit 101 prevents the buffer unit 41 from deviating from the predetermined range, and further protects the relative positional relationship between the buffer unit 41 and the geometric center of the display panel 50. .

FIG. 7 is a diagram illustrating a state of deformation occurring in the display panel 50 packaged in a packaging container. As illustrated, when the display panel 50 is deformed, the display unit 501 may be bent and deformed. In this case, the buffer unit 41 according to the present invention provides protection by appropriate buffering action to prevent the display panel 50 from being damaged.

Compared with the conventional display panel packaging container, the display panel 50 packaging container according to the present invention to reduce the impact applied to the display unit 501 to support the deflection of the display panel, and also to support the various points This improves the effect of mitigating shock and preventing vibration. In addition, the structure is simple and easy to use, it effectively performs the buffer protection function during the cargo transportation process and reduces the damage caused by deformation and collision.

Applicants conducted experiments on buffer parts having different thicknesses to advance the present invention. The table below shows the experimental values obtained by the present invention.

The table below measures the front (front) and rear sides of the display panels packaged in the packaging with the measurements made on a 37-inch display panel. The G values are the same as in the previous experiment, at the moment when a certain area of the object collided. Shows the acceleration ratio you will receive.

   Buffer thickness 3 cm 4 cm 5 cm  G value of drop collision section (front)  161.34  114.63  59.41 (65.46)  G value of drop collision section (rear)  -51.02  65.84  -20.67 (-57.74)

In the display panel industry, the strict standard of the G value is generally 60 or less, which indicates that the thicker the buffer, the better the buffering effect. In the case of 5 cm thickness, the G value of the front (front) of the 37-inch display panel has already reached 60 or less, which shows that the present invention achieves strict market standards. In addition, the pressurization step (ie, the step of compressing the thickness of 5 cm to 3 cm before the mounting of the buffer part in the container) is performed before the cushioning part is mounted inside the body, thereby enhancing the safety of product transportation. .

Although the embodiments of the present invention have been described as described above, the protection scope of the present invention is not limited thereto, and those skilled in the art will be able to make various changes without departing from the spirit and claims of the present invention. .

Claims (12)

A packaging container for packaging at least one display panel, wherein the at least one display panel includes a display unit, and the packaging container includes: Body; A lower fixing part mounted to the bottom of the body; An upper fixing part mounted on an upper portion of the body and accommodating a display panel between the lower fixing part; And Packaging container, characterized in that composed of at least one buffer unit mounted between the body and the display unit of the at least one display panel. The display device of claim 1, wherein the attenuation coefficient of the at least one buffer unit is greater than that of the upper and lower fixing units, and the at least one buffer unit has a buffer structure, and the display unit of at least one display panel. Packaging container, characterized in that installed to correspond with. The packaging container according to claim 2, wherein the buffer structure has a plurality of protrusions. The packaging container according to claim 3, wherein the at least one buffer part includes a central part and a peripheral part surrounding the central part, and the height of the protrusion formed in the central part is higher than the height of the peripheral part. The packaging container according to claim 3, wherein each of the protrusions has an upper portion and a lower portion, and a cross-sectional area of the upper portion is smaller than that of the bottom portion. The packaging container according to claim 2, wherein the buffer structure has a plurality of protrusions. The packaging container according to claim 6, wherein the at least one buffer part includes a central part and a peripheral part surrounding the central part, and the height of the protrusion formed in the central part is higher than the height of the peripheral part. According to claim 1, wherein the at least one buffer unit and any one of the upper and lower fixing unit is formed integrally, the damping coefficient of the at least one buffer unit is the damping coefficient of the upper and lower fixing unit. Packaging container characterized in that larger. The packaging container according to claim 1, wherein the body includes one or more position fixing parts positioned to face the display unit of the one or more display panels therein. The packaging container according to claim 9, wherein the one or more buffer parts are fixed in position by one or more position fixing parts. 10. The packaging container according to claim 9, wherein the at least one buffer unit secures between the at least one position fixing unit and the display unit of the display panel. A shock absorber for protecting at least one display panel, wherein the display panel includes a display unit, and the shock absorber includes: Lower fixation; An upper fixing part positioned corresponding to the lower fixing part and accommodating a display panel between the lower fixing part; And Located between the upper fixing portion and the lower fixing portion, the buffer device, characterized in that consisting of one or more buffers for buffering the display unit.

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