JP2009286062A - Reinforced laminated plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforced laminated plate which can remarkably increase shock resistance performance per unit mass without increasing its weight. <P>SOLUTION: The laminated plate has a horizontal intermediate layer 1 and covering layers 2, 2 which are integrally stuck respectively onto an upper surface and a lower surface of the intermediate layer 1. The intermediate layer 1 comprises a first resin material layer 3 which vanishes kinetic energy when a flying body collides mainly by elastic deformation and plastic deformation of its self and a second resin material layer 4 which vanishes the kinetic energy mainly by brittle fracture of itself and deformation of the flying body. The first resin material layer 3 and the second resin material layer 4 are alternately arranged in a horizontal direction in a state with an inclination of angle θ1 toward a vertical direction and are integrally bonded. Further the covering layer 2 is formed of a resin material homogeneous as that of the first resin material layer 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a reinforced laminate used for, for example, a reinforced fluoroscopic material for windows of vehicles and the like, and a protective visor used by police officers and the like.

  As a reinforced laminated plate that is lightweight and has excellent impact resistance, as shown in FIG. 6A, a polycarbonate plate 7 and an acrylic plate 8 are laminated in a multilayered manner in the vertical direction in a posture along the horizontal direction and integrally bonded. The thing is proposed (for example, patent document 1).

  This reinforced laminated plate functions so that the polycarbonate plate 7 absorbs the impact by elastic deformation and plastic deformation, while the acrylic plate 8 absorbs the impact by brittle crushing and also deforms the flying body to absorb the impact. The one that functions and shows defense performance. In this reinforced laminated board, for example, as shown in FIG. 6B, it is possible to arbitrarily increase the defense capability by increasing the thickness or number of the polycarbonate board 7 and the acrylic board 8.

Patent Document 2 discloses a technique for laminating a plurality of types of resin material layers with an inclination with respect to the thickness direction. According to this document, it is known that the lamination angle is set to 0 degree to 4 degrees, the end face of each layer appears to have a striped pattern, and the characteristics of the resin in which a plurality of surface characteristics are laminated are combined.
JP 2001-355999 A JP-A-9-85847 (paragraph number 0010 on the second page, FIG. 2)

  The conventional laminated plate disclosed in Patent Document 1 and the like improves the defense capability per unit mass for losing the kinetic energy of the flying object, compared with the one using glass as the main material. The structure in which the plate 8 is aligned along the direction perpendicular to the thickness direction limits the defense capability per unit mass, and the thickness and number of the polycarbonate plate 7 or the acrylic plate 8 are increased to protect the plate 8. When the capacity is increased, there is a problem that the weight inevitably increases.

  An object of this invention is to provide the reinforced laminated board which can eliminate these problems.

  In order to achieve the above object, the present invention is a laminate comprising an intermediate layer and a covering layer integrally formed on each of upper and lower surfaces of the intermediate layer, wherein the intermediate layer is kinetic energy from the outside. In which the first resin material layer that absorbs mainly by its own elastic deformation and plastic deformation and the second resin material layer that absorbs the kinetic energy mainly by its own brittle fracture are alternately stacked. And the end faces of the first resin material layer and the second resin material layer that appear on the surface of the intermediate layer are covered with the coating layer. It is characterized by being.

  When the flying object is perpendicularly incident, the impact energy applied to the reinforced laminate is maximized. However, according to the present invention, the interface between the first resin material layer and the second resin material layer is inclined in the intermediate layer. Therefore, even if the flying object has entered perpendicularly to the covering layer, the incident angle is not perpendicular to the boundary surface, and the impacted flying object is caused by the elasticity of the boundary surface of the first resin material layer. It acts to change direction and stay in the middle layer.

  As a result, the defense capability can be increased without increasing the thickness of the reinforced laminate, that is, without increasing the weight of the laminate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B are cross-sectional views of two types of reinforced laminates according to an embodiment of the present invention. Each of these reinforced laminates 100 </ b> A and 100 </ b> B includes a horizontal intermediate layer 1 and coating layers 2 and 2 that are integrally attached to upper and lower surfaces of the intermediate layer 1.

  The intermediate layer 1 includes a first resin material layer 3 that absorbs kinetic energy when the flying object collides mainly by its own elastic deformation or plastic deformation, and its own brittle fracture and the flying object. The second resin material layers 4 that are absorbed by the plastic deformation are alternately arranged in the horizontal direction while being inclined by a predetermined angle θ1 with respect to the vertical direction, and are integrally formed by an adhesive. Each of the coating layers 2 is formed of the same resin material as that of the first resin material layer 3. Each coating layer 2 and the first resin material layer 3 are preferably made of polycarbonate, and the second resin material layer 4 is preferably made of acrylic.

  1B will be described in more detail. The intermediate layer 1 includes two horizontal layers, an upper layer 1A and a lower layer 1B. The upper layer 1A includes the first resin material layer 3 and the second resin material layer 4. Are alternately arranged in the horizontal direction while being inclined at a fixed angle θ1 to the left and right sides with respect to the vertical direction, and the lower layer 1B is the upper layer of the first resin material layer 3 and the second resin material layer 4 Are alternately arranged in the horizontal direction while being inclined by a certain angle θ1 to the opposite side, and further, the first resin material layer 3 and the second resin material 4 of the upper layer 1A, and the first resin material layer 3 and the second resin material layer 3 of the lower layer 1B. 2 Resin material 4 is integrally bonded with an adhesive.

  Next, a specific manufacturing example of the reinforced laminate 100A shown in FIG. 1A will be described with reference to FIG. FIG. 2 is an explanatory view showing the production example.

  As shown in FIG. 2A, a jig 6 having an inclined surface 6a inclined at a constant angle θ1 within a range of approximately 30 degrees to 60 degrees with respect to the support plane 5 is fixed on the horizontal support plane 5. .

  On the other hand, a large number of strip-like polycarbonate plates 7 having a thickness a1 of approximately 2 mm to 4 mm are prepared, and the thickness a2 is approximately 4 mm to 10 mm. A large number of strip-shaped acrylic plates 8 are prepared.

  Next, the polycarbonate plate 7 and the acrylic plate 8 are alternately carried on the support plane 5 and leaned against the inclined surface 6a of the jig 6 in parallel with the polycarbonate plate 7, whereby the polycarbonate plate 7 and the acrylic plate 8 are inclined closely. In this state, an alternate arrangement state in which the pixels are alternately arranged in the horizontal direction is assumed.

  When this alternating arrangement state reaches a required length, a transparent adhesive 9 is supplied around the alternating arrangement state, and the transparent adhesive 9 is impregnated in the close contact area between the polycarbonate plate 7 and the acrylic plate 8. Harden. At this time, the adhesive 9 may be any one of a thermosetting type, a photocurable type, and a reactive type. As a result, the boundary surface where the polycarbonate plate 7 and the acrylic plate 8 are overlapped is inclined, and an integrated alternating array 10 in which the alternating array is integrally connected is formed.

  Next, as shown in FIG. 2B, the unevenness on the upper surface of the integrated alternating array 10 is ground to form a horizontal flat surface 10a. This is reversed on the support surface 5, and the upper surface in this reversed state is ground in the same manner as described above to obtain a horizontal flat surface 10b as shown in FIG. 2C.

  Finally, as shown in FIG. 2E, a polycarbonate plate 11 having a planar view shape identical to that of the integrated alternating array 10B and having a thickness of 2 mm to 6 mm is transparently formed on each of the upper and lower surfaces of the integrated alternating array 10B. Bonded integrally with the adhesive 12.

  Next, a specific manufacturing example of the reinforced laminate 100B shown in FIG. 1B will be described with reference to FIG. FIG. 3 is an explanatory view showing the production example.

  The width of each of the strip-shaped polycarbonate plate 7 and the strip-shaped acrylic plate 8 shown in FIG. 2A is half that of the previous case, and the same manufacturing process as that for obtaining the second integrated alternating array 10B is performed. As a result, two integrated alternating arrays 10C having a thickness of 4 mm to 8 mm as shown in FIG. 3A are formed.

  Next, as shown in FIG. 3B, the two integral alternating arrays 10C and 10C are opposed to each other so that the inclination directions of the polycarbonate plate 7 and the acrylic plate 8 are opposite to each other, and are integrally formed with a transparent adhesive 13. To join. Thereby, the integrated alternating array 10D in which the vertical direction is transparent is formed.

  In this unitary alternating array 10D, the polycarbonate plate 7 and the acrylic plate 8 of the upper unitary alternating array and the polycarbonate plate 7 and the acrylic plate 8 of the lower unitary alternating array are accurately shown in FIG. 3B. However, they may be matched in a straight line, or may be matched in a state shifted in the horizontal direction as shown in FIG. 3C.

  Finally, as shown in FIGS. 3D and 3E, on the upper surface and the lower surface of the integrated alternating array 10D, the plan view shape is the same as that of the integrated alternating array 10D and the thickness is substantially the same as in the previous case. A polycarbonate plate 11 having a constant value within a range of 2 mm to 6 mm is integrally bonded with a transparent adhesive 12.

  2E, 3D, and E, the corresponding relationship between the respective portions of the respective laminates 100A and 100B and the respective portions in FIG. 1 is shown. The integrated alternating arrays 10B and 10D correspond to the intermediate layer 1 and are integrated. The polycarbonate plate 7 on which the alternating arrays 10B and 10D are formed corresponds to the first resin material layer 3, and the acrylic plate 8 on which the integrated alternating arrays 10B and 10D are formed corresponds to the second resin material layer 4 and is further integrated. The polycarbonate plate 11 joined to the upper and lower surfaces of the alternating alternating bodies 10B and 10D corresponds to the coating layer 2.

  The upper integrated alternating array 10C corresponds to the upper layer 1A, and the lower integrated alternating array 10C corresponds to the lower layer 1B.

Next, the relationship between the reinforced laminate 100A and the flying object facing the reinforced laminate will be described with reference to FIG. FIG. 4 is an explanatory diagram showing the relationship.
Since the flying object b1 travels in the arrow direction c1 orthogonal to the coating layer 2 of the reinforced laminate 100A and collides with it, the flying object b1 exhibits the greatest penetration force with respect to the reinforced laminate 100A. To proceed to.

  When the flying object b1 collides with the coating layer 2 on one side of the reinforced laminate 100A, the coating layer 2 mainly has the kinetic energy of the flying object b1 due to its own elastic deformation and plastic deformation near the location where the flying object b1 collides. To absorb.

  Next, when the flying object b1 passes through the coating layer 2 and reaches the intermediate layer 1, the boundary surface 3a of the first resin material layer 3 is in the thickness direction of the reinforced laminate 100A (hereinafter referred to as the overall thickness direction). Since the vehicle b1 is inclined, the flying object b1 enters from a direction inclined by an angle θ2 corresponding to the inclination of the boundary surface 3a with respect to the direction orthogonal to the boundary surface 3a (this is the incident angle of the flying object b1). Collides with the boundary surface 3a. At this time, the boundary surface 3a receives the collision of the flying object b1 and simultaneously changes the traveling direction of the flying object b1 to the arrow direction c2 by the elastic action of the boundary surface 3a. When the second resin material layer 4 is crushed, the kinetic energy of the flying object b1 is absorbed. On the other hand, since the flying body b1 is plastically deformed in a flat shape at the tip end due to a collision with each layer, the penetrating force is further reduced. As a result, the flying object b1 is retained in the intermediate layer 1.

  When the flying object b1 reaches the opposite covering layer 2 without the kinetic energy of the flying object b1 being sufficiently diminished by the intermediate layer 1 or the like, the covering layer 2 is deformed at the tip. A large resistance is applied to b1 by its own wide range of elastic deformation and plastic deformation to effectively absorb the kinetic energy of the flying object b1.

  In FIG. 4, when the flying object b1 enters the reinforced laminated plate 100A through the arrow direction d1 (θ3) indicated by the dotted line, the incident angle θ2 of the flying object with respect to the first resin material 3 is 90 degrees or close to this. It will be. Even if the flying object b1 enters through the center line of the first resin material layer 3, the thickness of the first resin material layer 3 is 2 mm to 4 mm, while the diameter of the flying object b1 is generally 4 mm or more. Therefore, the flying object b1 always collides with the second resin material 4 and its kinetic energy is reduced by crushing the second resin material 4 or the like. Further, if it is larger than the incident angle θ3 of the flying object b1 with respect to the coating layer 2 on the opposite side, the possibility that the flying object b1 is rebounded due to the overall elastic deformation of the reinforced laminate 100A or the like increases.

  In the reinforced laminate 100A, the second resin material layer 4 is pulverized in the process of absorbing the kinetic energy of the flying object. At this time, the resin crushed from the end portion of the second resin material layer 4 appearing on the surface of the intermediate layer is about to jump out, but this is stopped by the coating layer 2 and crushed out of the reinforced laminate 100A. 2 Suppresses the scattering of the resin material.

  Next, the relationship between the reinforced laminate 100B and the flying object b1 will be described with reference to FIG. FIG. 5 is an explanatory diagram showing this relationship.

  The reinforced laminate 100B is composed of an upper layer 1A and a lower layer 1B in which the intermediate layer 1 is two layers. The upper layer 1A tilts the first resin material layer 3 and the second resin material layer 4 to the left and right sides with respect to the vertical direction. The lower layer 1B is alternately arranged in the horizontal direction in a state where the first resin material layer 3 and the second resin material layer 4 are inclined to the opposite side of the upper layer 1A with respect to the vertical direction. Because of the arrangement, the flying object b1 entering the upper layer 1A from the arrow direction d2 (incidence angle θ4) indicated by a dotted line corresponds to the inclination angle of the boundary surface 3a with respect to the direction orthogonal to the boundary surface 3a of the lower layer 1B. It enters from the direction inclined by θ5 and collides with the boundary surface 3a. At this time, the boundary surface 3a acts to change the flying object b1 in the direction of the arrow c3 and moves it in a direction orthogonal to the overall thickness direction. As a result, the flying object b1 has its kinetic energy in the approach direction (thickness direction) reduced and the penetration force to the reinforced laminate 100B is reduced. Here, the inclination angles of the upper layers 1A and 1B of the reinforced laminate 100B are different and may be the same. In addition, the end surfaces of the first resin material layer 3 and the second resin material layer 4 that adhere to each other between the upper layers 1A and 1B do not need to be the same resin material, or may be the same.

In each of the above embodiments, each coating layer has a single layer structure composed of the first resin material layer. However, the coating layer is composed of a plurality of layers as long as the purpose of covering the intermediate layer so that the second resin material layer is not scattered is achieved. Things may be used. In this case, it is obvious that the coating layers 2 on both sides may not have the same layer configuration.

It is sectional drawing of two types of reinforcement | strengthening laminated boards which concern on a present Example. It is explanatory drawing which shows the manufacture example of one type of the said reinforcement | strengthening laminated board. It is explanatory drawing which shows the manufacture example of another said kind of said reinforced laminated board. It is explanatory drawing which shows the relationship between the said one type of reinforcement laminated board and a flying body. It is explanatory drawing which shows the relationship between said 1 type of another reinforcement laminated board and a flying body. It is sectional drawing which shows the conventional reinforced laminated board.

Explanation of symbols

1 intermediate layer 1A upper layer 1B lower layer 2 coating layer 3 first resin material layer 4 second resin material layer b1 flying body

Claims (5)

  A laminated board comprising an intermediate layer and a covering layer integrally attached to the upper and lower surfaces of the intermediate layer, wherein the intermediate layer mainly receives its own kinetic energy from its own elastic deformation and plastic deformation. The first resin material layer that absorbs the kinetic energy and the second resin material layer that absorbs the kinetic energy mainly by its own brittle crushing are alternately stacked. An end face of the first resin material layer and the second resin material layer that is inclined with respect to the surface of the layer and appears on the surface of the intermediate layer is covered with the covering layer.   The reinforced laminate according to claim 1, wherein the inclination angle is substantially in the range of 30 to 60 degrees with respect to the vertical direction.   The reinforced laminate according to claim 1, wherein the coating layer includes a layer of a resin material having the same quality as the first resin material layer.   5. The reinforced laminate according to claim 1, wherein the first resin material layer is made of polycarbonate, and the second resin material layer is made of acrylic.   The intermediate layer includes a layer whose boundary surface has a first inclination angle and a layer whose boundary surface has a second inclination angle, and the first and second inclination angles are the surface of the coating layer. 6. A reinforced laminate according to claim 1, wherein the reinforced laminates are inclined opposite to each other.