JP2006290382A - Buffering material for glass sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a buffering material for glass sheets which solves a problem of easy bending of a joint of a buffering material for glass sheets, has structural strength, does not require a special manufacturing facility, offers a fine material yield, and can be manufactured at low cost. <P>SOLUTION: The buffering material is interposed between adjacent glass sheets. Four frame pieces 11, 11, 12, 12 each made of a shock absorbing material are combined into a frame shape to form a layer of a frame 10A, a plurality of which are combined together. The frame pieces 11, 12 are strip-shaped, and are butted against each other at almost right angles at a corner to form an abutment part. The position of the abutment parts are made different between the frame 10A and a frame 10B that are adjacent to each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a buffer material for glass plates that is interposed between adjacent glass plates so that glass plates for liquid crystals and the like do not come into contact with each other during transportation or storage.

  In recent years, along with the rapid development of computers and AV devices, thin and power-saving liquid crystal displays are rapidly spreading as main displays of these devices, and a glass plate is used as a material of this liquid crystal display. Yes. Since this glass plate is thin and vulnerable to impact, a frame-shaped cushioning material is interposed between adjacent glass plates in order to reduce the impact when transporting and storing them in layers. Such a buffer material for glass plates is shown in FIG. 5 and FIG.

  The buffer material 30 for glass plate shown in FIG. 6 is a material that is punched using a press or the like from a material board such as corrugated cardboard or foamed propylene cut to a predetermined size. However, since the extracted central portion 31 (hatched portion in the figure) is discarded, there is a disadvantage that there is a lot of material loss. Therefore, in order to reduce the loss of material, as shown in FIG. 7A, frame pieces 42 and 43 are cut out in an L shape from the material plate 41, and this is used for a glass plate as shown in FIG. 7B. The cushioning material 40 has also been assembled into a frame shape. However, even in this method, it is difficult to effectively use the material 100%. Further, in this method, the joining portion of the frame piece 42 and the frame piece 43 in this L shape is cut obliquely in the cross-sectional direction and joined with an adhesive or the like as shown in FIG. However, there is a problem that the joint portion is inevitably weak to the load, and breakage or adhesion peeling occurs.

Then, there existed a buffer material for glass plates as shown in patent document 1 as a buffer material for glass plates which solves such a problem. This buffer material for glass plates is a buffer material for glass plates interposed between adjacent glass plates for impact reduction when a plurality of glass plates are laminated, and is formed of four strips made of an impact relaxation material. The members are combined in a frame shape, and the ends of the two strip-shaped members that intersect at substantially right angles at the four corner portions are butted and joined so as to have the same thickness as the other portions. To do.
JP 2003-327267 A

  However, in the buffer material for a glass plate shown in Patent Document 1, since the material of the strip-shaped member is a sheet material made of foamed propylene or the like that is a synthetic resin, cutting into a strip shape is so accurate. However, it is necessary to form a convex part and a concave part in the part to be joined at a right angle, so that the concave and convex parts must be processed with high accuracy. In addition, there is a problem that a press machine for that purpose is required and processing is time-consuming.

  Moreover, since this convex part and the concave part are joined by ultrasonic welding, an ultrasonic welding machine is required, and it is necessary to prepare equipment together with a press machine. Furthermore, since the structure of joining of the convex part and the concave part is an abutting structure, there is a problem that the joint part is inevitably weak against a load in the thickness direction and is easily bent from the joint part.

  The present invention has been made in view of the above-described conventional problems, solves the problem of being easily bent at the joint portion in the buffer material for glass plates, is structurally strong and does not require special manufacturing equipment, The present invention provides a buffer material for glass plate that has a good yield and can be manufactured at low cost.

  In order to solve the above-described problems, the present invention is a buffer material for glass plates interposed between adjacent glass plates, and four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame. However, a plurality of the frame bodies are combined.

  Further, the present invention is a buffer material for a glass plate interposed between adjacent glass plates, wherein four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and the frame A plurality of layers are combined, the frame piece is formed in a strip shape, the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutment portion, and the position of the abutment portion is adjacent to the abutment portion The frame is characterized in that the positions are different.

  Further, the present invention is a buffer material for a glass plate interposed between adjacent glass plates, wherein four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and the frame A plurality of layers are combined, the frame piece is formed in a strip shape, the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutment portion, and the position of the abutment portion is adjacent to the abutment portion The positions of the frame bodies are different, and the adjacent frame bodies have different plate thicknesses.

  Further, the present invention is a buffer material for a glass plate interposed between adjacent glass plates, wherein four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and the frame A plurality of layers are combined, the frame piece is formed in a strip shape, the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutment portion, and the position of the abutment portion is adjacent to the abutment portion The positions of the frame bodies are different, and the ratio of the plate thicknesses of the adjacent frame bodies is approximately 1: 1 to 1: 3.

  Furthermore, the present invention is a glass plate cushioning material interposed between adjacent glass plates, wherein four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and the frame A plurality of layers are combined, the frame piece is formed in a strip shape, the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutment portion, and the position of the abutment portion is adjacent to the abutment portion The position of the frame body is different, and the impact relaxation material is cardboard or cardboard, and the adjacent frame body and the frame body are bonded with an adhesive.

  In the present invention, since the joining positions of the frame pieces are different between the adjacent frame bodies as described above, the load applied to the joint portions is reinforced by the adjacent frame bodies, and therefore the joint portions are easily bent. It is possible to solve the conventional problems.

  Further, since the frame pieces are simply cut into strips from cardboard or corrugated cardboard of the material and combined into a frame shape of four frame pieces, the material can be used 100% effectively, and the cost of the material can be greatly reduced.

  Furthermore, since cardboard and cardboard are used for the material, the material cost is low, and the processing is not performed using expensive equipment such as a press or an ultrasonic welding machine, but is performed by an inexpensive means such as bonding. In addition, it is possible to provide a buffer material for a glass plate capable of reducing the cost.

The best mode of the buffer material for glass plates according to the present invention will be described based on the drawings.
1 is an exploded perspective view showing a configuration of a buffer material for glass plate according to the present invention, FIG. 2 is a perspective view showing a use state of the buffer material for glass plate of FIG. 1, and FIG. 3 is a buffer material for glass plate of FIG. 4 is a perspective view showing the processing of the frame piece, FIG. 4 is an enlarged view of the main part showing the structure of the abutting portion of the buffer material for glass plate in FIG. 1, and FIG. 5 is an embodiment of the buffer material for glass plate according to the present invention. It is a perspective view shown.

  As shown in FIG. 1, the buffer material 10 for glass plate according to the present invention forms a single frame 10 </ b> A by combining four frame pieces 11, 11, 12, 12 made of an impact relaxation material in a frame shape. These frame bodies 10A and 10B having different plate thicknesses are combined in a plurality of layers. The buffer material 10 for glass plate of the present invention is usually a combination of three layers, but it is of course possible to have four layers or even more multilayers depending on the purpose. When the glass plate cushioning material is formed of four or more layers, the frame body 10A and the frame body 10B in FIG. 1 are alternately combined. As shown in FIG. 2, the thus configured glass plate cushioning material 10 is used during storage or transportation of the glass plate G for liquid crystal, and is arranged on a rack L or the like. G is sandwiched and the glass plate G for liquid crystal is protected.

  As shown in FIG. 3, the material plate 1 used for the glass plate cushioning material 10 is provided with a predetermined width having a length substantially the same as the length of each length of the glass plate. Paper-based materials such as cut cardboard and thin cardboard are used. The vertical and horizontal dimensions vary depending on the vertical and horizontal dimensions of the glass plate on which the glass plate cushioning material 10 is used. Usually, the vertical and horizontal dimensions are between 300 mm and 4000 mm. The length is 300 mm to 1800 mm, and the width is 800 mm to 2400 mm. However, it is not limited to these dimensions, and other dimensions may be used as long as the purpose of buffering can be achieved.

  When the glass plate cushioning material 10 is formed of three layers, the thickness ratio of the glass plate cushioning materials is 1: 1: 1 to 1: 3. : 1 is preferred. In particular, it is preferable that the ratio of the plate thickness for forming the three layers is 1: 1: 1, 1: 2: 1, or 1: 3: 1. However, it is not particularly limited to this, and other ratios may be used as long as the purpose of buffering can be achieved. Moreover, when the buffer material for glass plates is formed by three layers, the thickness of the buffer material for glass plates is normally formed by 1.5 mm-8 mm. The larger the vertical and horizontal dimensions of the glass plate, the more preferable the glass plate cushioning material is to achieve the buffering purpose if the plate thickness is increased in order to achieve the buffering purpose. A specific example will be described. In the case where the thickness of the buffer material for glass plate is 1.5 mm, the thickness of the 0.5 mm thick plate is composed of three layers (plate thickness ratio is 1 : 1: 1). Further, in the case where the thickness of the buffer material for glass plate is 5 mm, it is configured so that one 3 mm thick plate is sandwiched between two 1 mm thick plates (the ratio of the plate thickness is 1: 3: 1). ). Further, when the thickness of the buffer material for glass plate is 8 mm, it is configured such that one 2 mm thick plate is sandwiched between two 4 mm thick plates (ratio of plate thickness is 1: 2: 1). ).

  In order to process the horizontal frame piece 11 from the material plate 1, as shown in FIG. 3A, it is cut into strips in the horizontal direction with a predetermined width. Since this cutting operation does not require so much accuracy, a general cutting machine can be used. Similarly, to process the vertical frame piece 12, as shown in FIG. 3B, the same material plate 1 is cut into strips in the vertical direction with a predetermined width. Similarly, when processing the frame pieces 13 and 14 having different thicknesses, as shown in FIGS. 3C and 3D, they are cut into strips with a predetermined width from the material plate 2 having a thickness of 2 mm. is there. As described above, since the frame pieces 11, 12, 13, and 14 are cut at a predetermined width, the material can be used without waste in both the vertical direction and the horizontal direction. The cushioning material for the plate can be manufactured at low cost. The predetermined width is not particularly limited as long as it has a width that achieves the purpose of buffering, but when the dimensions of the buffer material for glass plate are 300 mm to 1800 mm in length and 800 mm to 2400 mm in width, If the width is about 10 mm to 80 mm, the purpose of buffering can be achieved.

  Next, assembly of the buffer material 10 for glass plates will be described. The buffer material for a glass plate in the figure shows a 1: 2: 1 ratio, and specifically, a combination of 1 mm: 2 mm: 1 mm. As shown in FIG. 1, one end face in the longitudinal direction of a frame piece 11 (or frame piece 12) having a thickness of 1 mm is combined so as to be in contact with the side face in the longitudinal direction of the frame piece 12 (or frame piece 11). Frame-shaped frame body 10A, and on frame-shaped frame body 10B that is combined such that one end face in the longitudinal direction of frame piece 13 having a thickness of 2 mm is in contact with the side surface on the end side in the longitudinal direction of frame piece 14 It is attached by bonding. Similarly, when a pair of frame-like frame bodies 10A having a plate thickness of 1 mm are bonded under the frame body 10B, the glass plate cushioning material 10 is completed. Further, the glass plate cushioning material 10 is assembled by gluing the frame pieces 11 and 12 one by one on the frame-like frame body 10B to form the frame body 10A, and the frame piece 11 under the frame body 10B. , 12 may be glued one by one to form the frame 10A. Thus, since the assembly of the buffer material 10 for glass plates can be easily performed only by bonding, the buffer material 10 for glass plates can be manufactured at low cost.

  As shown in FIG. 4, the glass plate cushioning material 10 thus configured has a complementary relationship because the positions of the corner abutting portions, which are considered to be structurally weak, differ between the frame 10A and the frame 10B. The strength is improved. Since the frame 10A and the frame 10B that are adjacent to each other are bonded to each other, adhesion peeling or the like does not occur.

  In the present invention, since the positions of the abutting portions of the frame pieces are different between the adjacent frame bodies as described above, the load applied to the abutting portion is reinforced by the adjacent frame bodies. The conventional problem that the portion is easily bent can be solved. Further, since the frame pieces are simply cut into strips from cardboard or corrugated cardboard of the material and combined into a frame shape of four frame pieces, the material can be used 100% effectively, and the cost of the material can be greatly reduced. Furthermore, since the processing is performed by an inexpensive means such as bonding without using expensive equipment such as a press or an ultrasonic welder, it is possible to provide a buffer material for a glass plate that can greatly reduce the cost.

  FIG. 5 shows an embodiment of the buffer material for glass plate. This glass plate cushioning material 20 is similar to the glass plate cushioning material 10 in that the frame pieces 21, 22, 23, 24 are cut into strips from a cardboard or cardboard material plate, and a frame body combined in a frame shape is bonded. The frame body 20A with a plate thickness of 1 mm and the frame body 20B with a plate thickness of 2 mm are bonded together in four layers. In the frame body 20A and the frame body 20B, the positions of the butted portions of the frame pieces 21 and 22 and the butted portions of the frame pieces 23 and 24 at the four corners are different from each other.

  Since the buffer material 20 for glass plate comprised in this way differs in the position of the abutting part of a frame piece between adjacent frame bodies similarly to the buffer material 10 for glass plates, this abutting part Since the load applied to is reinforced by the adjacent frame, the conventional problem that the joint portion is easily bent can be solved. And since a frame is bonded together in four layers, intensity | strength improves further. Further, since the frame pieces are simply cut into strips from cardboard or corrugated cardboard of the material and combined into a frame shape of four frame pieces, the material can be used 100% effectively, and the cost of the material can be greatly reduced. Furthermore, since the processing is performed by an inexpensive means such as bonding without using expensive equipment such as a press or an ultrasonic welder, it is possible to provide a buffer material for a glass plate that can greatly reduce the cost.

It is a disassembled perspective view which shows the structure of the buffer material for glass plates which concerns on this invention. It is a perspective view which shows the use condition of the buffer material for glass plates of FIG. It is a perspective view which shows the process of the frame piece of the buffer material for glass plates of FIG. 1, (a) is the state cut | disconnected laterally from the 1mm-thick material board, (b) is the vertical direction from the 1mm-thick material board. (C) is a perspective view showing a state cut in a transverse direction from a material plate having a thickness of 2 mm, and (d) is a perspective view showing a state cut in a longitudinal direction from a material plate having a thickness of 2 mm. It is a principal part enlarged view which shows the structure of the abutting part of the buffer material for glass plates of FIG. It is a perspective view which shows the Example of the buffer material for glass plates which concerns on this invention. It is a top view which shows the process of the buffer material for conventional glass plates. The processing of the conventional buffer material for glass plates is shown, (a) is a plan view showing a state in which the frame piece is cut, (b) is a single side view showing a state in which the frame piece is assembled into a frame shape, (c). FIG. 3 is a cross-sectional view showing a joint portion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Material board 2 Material board 10 Buffer material for glass plates 10A Frame body 10B Frame body 11 Frame piece 12 Frame piece 13 Frame piece 14 Frame piece 20 Glass plate buffer material 20A Frame body 20B Frame body 21 Frame piece 22 Frame piece 23 Frame Piece 24 frame piece

Claims (5)

A buffer material for a glass plate interposed between adjacent glass plates, in which four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and a plurality of the frames are combined. The buffer material for glass plates characterized by having. It is a buffer material for a glass plate interposed between adjacent glass plates, and four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and a plurality of the frames are combined,
The frame piece is formed in a strip shape, and the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutting portion,
The position of the said abutting part differs in the position in the said adjacent frame, The buffer material for glass plates characterized by the above-mentioned. It is a buffer material for a glass plate interposed between adjacent glass plates, and four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and a plurality of the frames are combined,
The frame piece is formed in a strip shape, and the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutting portion, and the position of the abutting portion is different in the adjacent frame body. Let
The buffer material for glass plates, wherein the adjacent frame bodies have different plate thicknesses. It is a buffer material for a glass plate interposed between adjacent glass plates, and four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and a plurality of the frames are combined,
The frame piece is formed in a strip shape, and the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutting portion, and the position of the abutting portion is different in the adjacent frame body. Let
The glass plate cushioning material is characterized in that the ratio of the plate thicknesses of the adjacent frames is approximately 1: 1 to 1: 3. It is a buffer material for a glass plate interposed between adjacent glass plates, and four frame pieces made of an impact relaxation material are combined in a frame shape to form a single frame, and a plurality of the frames are combined,
The frame piece is formed in a strip shape, and the frame piece and the frame piece are abutted at a substantially right angle at a corner to form an abutting portion, and the position of the abutting portion is different in the adjacent frame body. Let
The shock-absorbing material is cardboard or cardboard, and the adjacent frame and the frame are bonded with an adhesive.

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