JP2015085540A - Laminated member and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated member where a foam and a skin material are hardly peeled off from each other at their ends.SOLUTION: A laminated member is configured by superimposing a foam F forming a heat insulation layer 14 and a skin material S forming a skin layer 16 on each other so that the skin material S is located on the front side of the laminated member, and bonding their superimposed surfaces to each other. The laminated member is immersed at its end in a liquid hot melt adhesive, and the hot melt adhesive imparted to the end is solidified to form a cover part 28 covering from an end surface where the insulation layer 14 appears to an edge of the skin layer 16.

Description

  The present invention relates to a laminated member constituted by adhering a foam and a skin material and a manufacturing method thereof.

  In vehicles such as automobiles, a laminate obtained by hot press molding a laminated structure with a polyester fiber nonwoven fabric lined on the back surface of a urethane base material while a skin made of a thermoplastic resin sheet or the like is pasted on the surface of a urethane base material The member is used for a roof liner or the like (see, for example, Patent Document 1). Such a laminated member is formed into a required shape, and then trimmed at the peripheral edge thereof to obtain an outer edge shape corresponding to the product.

JP2013-52563A

  When the urethane base material is exposed on the end surface of the product, the urethane base material deteriorates due to water intrusion or interference with other members causes surface layer materials such as the skin from the urethane base material. There is a risk of peeling. Therefore, the laminated member of Patent Document 1 is provided with a terminal that is provided with a wrapping sheet at the edge of the product, and an adhesive is applied to the folded part of the wrapping sheet on the back surface of the product, and then the wrapping sheet that is folded back on the back side is adhered with an adhesive. Processing is in progress. However, the terminal processing by such an edge entrainment has a drawback that it takes much time.

  That is, the present invention has been proposed in order to solve these problems inherently in the prior art, and provides a laminated member in which a foam and a skin material are unlikely to peel off at a terminal and a method for manufacturing the same. For the purpose.

In order to overcome the above-mentioned problems and achieve the intended object, the laminated member of the invention according to claim 1 of the present application,
In the laminated member constituted by superposing the foam and the skin material so that the skin material is on the front side and bonding the overlapping surfaces of each other,
The gist is that a covering portion made of an adhesive is formed so as to cover from the end face where the foam faces to the edge of the skin material.
According to the first aspect of the invention, since the end of the laminated member from the end face to the edge is covered with the covering portion, the end face where the joint of the foam and the skin material faces can be protected by the covering portion. it can. That is, it is possible to prevent the foam and the skin material from being separated by the covering portion due to water or the like entering from the end face of the laminated member or coming into contact with the end face. In addition, since the covering portion itself is made of an adhesive having an adhesive force, the covering portion can be easily formed on the terminal of the laminated member and hardly peeled off from the terminal.

The gist of the invention according to claim 2 is that the covering portion is made of a hot melt adhesive.
According to the invention which concerns on Claim 2, a coating | coated part can be formed more easily by comprising a coating | coated part from a hot-melt-adhesive.

The gist of the invention according to claim 3 is that the covering portion is colored according to the color of the skin material.
According to the invention of claim 3, since the end face of the laminated member is covered with the covering portion that matches the color of the skin material forming the surface of the laminated member, the color of the foam facing the end face is different from that of the skin material. Also, the foam can be concealed by the covering portion to improve the appearance of the laminated member.

In order to overcome the above-mentioned problems and achieve the intended purpose, the manufacturing method of the laminated member of the invention according to claim 4 of the present application,
By laminating the foam and the skin material so that the skin material is on the front side, and bonding each other's overlapping surface, a laminated member is obtained,
A coating made of an adhesive so that the end of the laminated member is immersed in a liquid adhesive, and the adhesive applied to the terminal is solidified to cover the end face of the foam from the edge of the skin material. The gist is that the part is formed.
According to the invention which concerns on Claim 4, a coating | coated part can be easily formed in the terminal of a laminated member with an adhesive agent. In the obtained laminated member, since the end of the laminated member from the end surface to the edge is covered with the covering portion, the end surface where the joint of the foam and the skin material faces can be protected by the covering portion. That is, it is possible to prevent the foam and the skin material from being separated by the covering portion due to water or the like entering from the end face of the laminated member or coming into contact with the end face.

  According to the laminated member according to the present invention, the foam and the skin material can be made difficult to peel off at the terminal by the covering portion. Moreover, according to the manufacturing method of the lamination | stacking member which concerns on this invention, a foam and skin material can be made hard to peel at a terminal with a simple structure which forms a coating | coated part in a terminal.

It is a schematic perspective view which shows the condition which attaches the heat insulation cover comprised from the laminated member which concerns on the Example of this invention to a battery. It is a longitudinal cross-sectional view which shows the heat insulation cover of an Example. It is a longitudinal cross-sectional view shown in the state which attached the heat insulation cover of the Example to the battery. (a) is a cross-sectional view taken along line X1-X1 in FIG. 3, (b) is a cross-sectional view taken along line X2-X2 in FIG. 3, and (c) is a cross-sectional view taken along line X3-X3 in FIG. FIG. (a) is explanatory drawing which shows the isolation | separation state before superposing | stacking a skin material on both sides of a foam, (b) is explanatory drawing which shows the state which formed the coating | coated part by heat-compressing the laminated member. It is explanatory drawing which shows the heat compression molding process of an Example. It is a longitudinal cross-sectional view shown in the state which attached the heat insulation cover of the example of a change to the battery.

  Next, a multilayer member according to the present invention and a method for manufacturing the same will be described below with reference to the accompanying drawings by way of preferred examples. In the embodiment, a laminated member used for a heat insulating cover that surrounds a battery installed in an engine room or the like of a vehicle such as an automobile will be described.

  The heat insulating cover 10 according to the embodiment is a wall portion which will be described later with a laminated member P configured by superposing the foam F and the skin material S and bonding the overlapping surfaces so that the skin material S is on the front side. 12 is formed (see FIGS. 1 to 3). Here, the heat insulating cover 10 is formed by heating and compression-molding the flat laminated member P in the overlapping direction (thickness direction) of the foam F and the skin material S, forming the required shape, and then bending and overlapping the ends. The parts are joined together to form a rectangular tube (see FIG. 1). Further, the laminated member P includes a covering portion 28 formed so as to cover at least the end face at the outer edge portion (see FIGS. 2 and 3), and the end face where the foam F is not covered with the skin material S is the covering portion. 28 is protected. In the embodiment, the covering portion 28 is formed on all four sides of the outer edge portion of the rectangular flat laminated member P, and the joint of the foam F and the foam F and the skin material S is the skin material S and / or Alternatively, it is covered with the covering portion 28 so as not to be exposed to the outside. That is, in the heat insulating cover 10 in which the laminated member P is formed in a rectangular tube shape, the covering portion 28 is provided on each of both opening edges of the rectangular tube that is opened up and down, and the rectangular tube among the portions that are overlapped and joined to each other. The covering portion 28 is provided on each of a side end portion facing the inside of the tube and a side end portion facing the outside of the square tube.

  As shown in FIG. 1, the heat insulating cover 10 according to the embodiment includes a wall portion 12 formed in a rectangular tube shape that opens up and down in accordance with the outer shape of a rectangular box-shaped battery B, and is located above the battery B. The battery B is mounted so as to cover the entire side surface of the battery B with the wall portion 12. In the battery B of the embodiment, the outer peripheral edge of the lid B2 disposed on the top of the box-shaped main body B1 slightly extends outward from the side surface of the box-shaped main body B1. Further, the battery B is placed on a substantially tray-shaped gantry C (see FIG. 3). When the heat insulating cover 10 is attached to the battery B, the lower end of the wall portion 12 is abutted against the gantry C and positioned in the vertical direction. The heat insulating cover 10 has four wall portions 12 corresponding to the four side surfaces of the battery B, and the corner portions connecting the adjacent wall portions 12 and 12 are bent and extended as hinges, so that the rectangular tube shape is changed to a flat plate shape. The battery can be folded and can follow the shape of the battery B. That is, the heat insulating cover 10 can be used in common for the batteries B having the same size.

  The wall portion 12 of the heat insulating cover 10 has heat insulating properties. As shown in FIGS. 2 and 3, the wall portion 12 of the embodiment is made of the foam F, and is disposed so as to cover the heat insulating layer 14 having elasticity and both surfaces of the heat insulating layer 14. 14 is a multi-layer structure including the skin layers 16 and 16 made of the skin material S that protects 14, and is configured to be elastically deformable in the thickness direction. In other words, the heat insulating cover 10 has an inner surface facing the battery B constituted by the skin layer 16 and an outer surface constituted by the skin layer 16. Moreover, the wall part 12 is formed with low air permeability. It is desirable that the heat insulating cover 10 disposed in the engine room has flame retardancy.

The heat insulation layer 14 is composed of a foam F (see FIG. 6) such as polyurethane foam, melamine foam, olefin foam such as polyethylene foam, among which polyurethane foam is suitable. In addition, the foam F may be any of soft, semi-rigid, and hard, and those excellent in thermoformability are preferable in production. The foam F preferably has a closed cell structure with low air permeability, and the air permeability (JIS K 6400-7) is 1.0 ml / cm ² · s in an uncompressed state before constituting the wall portion 12. Those in the range of ˜80 ml / cm ² · s are preferable. By constituting the heat insulation layer 14 from the air-permeable foam F in such a range, heat transfer accompanying the passage of air can be suppressed, and the heat insulation of the wall portion 12 can be improved. Further, the foam F is the uncompressed state before constituting the wall portion 12 is preferably one that density is in the range of ^{11kg / m 3 ~30kg / m 3} , a foam F such density range By configuring the heat insulating layer 14, the heat insulating cover 10 can be reduced in weight.

The skin layer 16 has flexibility, water repellency, and abrasion resistance that deforms following the elastic deformation of the heat insulating layer 14. The skin layer 16 desirably has water repellency that does not substantially pass water (droplets) by water repellent processing or impregnation / coating with a fluororesin or the like. The skin layer 16 is composed of a cloth such as a nonwoven fabric or a woven fabric, or a skin material S (see FIG. 6) such as a synthetic resin film material. Among these, a nonwoven fabric is preferable. The nonwoven fabric, a needle punch method, may also be obtained from any of the methods, such as spunbond and thermal bond method, preferably those whose basis weight is in the range of 50g / m ² ~110g / m ² . Furthermore, the skin material S follows the deformation of the foam F when the laminated member P (see FIG. 6) obtained by superposing the foam F and the skin material S is heat compression molded to obtain the wall portion 12. It is desirable to have an appropriate elongation so as to be molded.

  As shown in FIG. 3, the wall portion 12 includes a general portion 18 arranged so as to be separated from the side surface of the box-shaped main body B1 in the battery B when the heat insulating cover 10 is attached to the battery B, and the general portion. A sealing portion (convex portion) 20 is provided so as to protrude inward (battery B side) from 18 and elastically contact the side surface of the box-shaped main body B1. The wall portion 12 is formed with at least a sealing portion 20 at a position in contact with the upper side surface of the box-shaped main body B1 in the battery B. By the sealing portion 20, the side surface of the box-shaped main body B1 and the general portion 18 are formed. The upper side of the space G between them is closed. In other words, the wall portion 12 has the sealing portion at the end (upper end in the embodiment) opposite to the insertion end (lower end in the embodiment) when the heat insulating cover 10 is attached to the battery B. 20 is formed, and in the embodiment, a single sealing portion 20 extending in the width direction (circumferential direction) is provided on the upper portion of the wall portion 12 (see FIGS. 1 and 5). Further, the wall portion 12 includes a reinforcing portion (second convex portion) 22 that protrudes inward from the general portion 18 and has a smaller inward protruding dimension from the general portion 18 than the sealing portion 20. ing. The reinforcing portion 22 is formed so as to extend in the width direction (circumferential direction) of the wall portion 12 and is disposed so as to be separated from the sealing portion 20 in the vertical direction and parallel to the sealing portion 20. The reinforcing portion 22 is configured to be separated from the side surface of the box-shaped main body B1 in the battery B when the heat insulating cover 10 is attached to the battery B.

  As shown in FIG. 2 and FIG. 3, the wall portion 12 extends between the sealing portion 20 formed at the upper portion, the reinforcing portion 22 formed at the lower portion, and the sealing portion 20 and the reinforcing portion 22. General part (in the case of distinction, the intermediate general part 18A), a general part (lower general part 18B) extending below the reinforcing part 22, and a general part (upper part extending above the sealing part 20) General section 18C). As described above, the wall portion 12 includes the sealing portion 20, the general portion 18, and the reinforcing portion 22 arranged in the vertical direction (insertion direction when attached), and the inner surface of the wall portion 12 is a box-shaped main body in the battery B. Instead of a plane along the side surface of B1, a portion that can contact the side surface of the box-shaped main body B1 and a portion that does not contact are formed in a vertical relationship. That is, the wall 12 extends over the entire side surface in the vertical direction of the box-shaped main body B1, although the sealing portion 20 abuts over a partial range in the vertical direction on the side surface of the box-shaped main body B1. Configured not to touch. In addition, the outer surface of the wall part 12 is formed substantially flat.

  The heat insulating cover 10 is formed such that the inner region defined by the general portion 18 of the four wall portions 12 is larger than the outer shape of the box-shaped main body B1 in the battery B (see FIG. 4B). The heat insulating cover 10 has an inner region defined by the tip of the sealing portion 20 of the four wall portions 12 smaller than the outer shape of the box-shaped main body B1 in the battery B (see FIG. 4C). ). Further, the heat insulating cover 10 has an inner region defined by the tips of the reinforcing portions 22 of the four wall portions 12 larger than the outer shape of the box-shaped main body B1 in the battery B (see FIG. 4A). . And the thickness dimension of the sealing part 20 is set larger than the thickness dimension of the general part 18 (refer FIG. 2). The thickness dimension of the reinforcing part 22 is set larger than the thickness dimension of the general part 18 and smaller than the thickness dimension of the sealing part 20. In the embodiment, the vertical width of the reinforcing portion 22 is set smaller than the vertical width of the sealing portion 20. When the heat insulating cover 10 is attached to the battery B, the sealing portion 20 contacts the side surface of the box-shaped main body B1 of the battery B so that the heat insulating cover 10 is positioned in the horizontal direction with respect to the battery B. 22 is spaced apart from the side surface of the box-shaped main body B1. As shown in FIG. 3, the heat insulating cover 10 is formed on the upper portion of the wall portion 12, and the lower end of the sealing portion 20 that contacts the upper side surface of the box-shaped main body B1 in the battery B and the lower end of the wall portion 12 that contacts the gantry C. Thus, the space G is sealed.

  The sealing portion 20 and the reinforcing portion 22 are formed by heat compression molding the heat insulating layer 14 made of the foam F that constitutes the wall portion 12, and the peak of the tip extends in the width direction (circumferential direction) of the wall portion 12. In addition, it is formed in a shape that rises in a mountain shape with an inclined surface on the top and bottom (see FIGS. 2 and 5). Further, the sealing portion 20 and the reinforcing portion 22 are formed so that the tips thereof are arc-shaped, and the tips are arranged at a substantially central portion in the vertical direction within the vertical width of the sealing portion 20 and the reinforcing portion 22. ing. Furthermore, the sealing part 20 and the reinforcing part 22 are configured such that the density of the heat insulating layer 14 decreases from the upper and lower base ends connected to the general part 18 toward the central part in the vertical direction. In other words, the sealing part 20 and the reinforcing part 22 are not thermally compressed in the vertical center part side where the tip is present or the amount of compression is small, and heat insulation is performed from the vertical center part to the vertical base side. The compression amount of the layer 14 is large. And the sealing part 20 and the reinforcement part 22 are comparatively flexible in the up-down direction center part which protrudes most, and the repulsive force with respect to elastic deformation becomes large as it goes up and down from the up-down direction center part. The sealing portion 20 is relatively easily deformed in the early stage of deformation, but the upper and lower dense portions are deformed as the amount of deformation increases, and the repulsive force is increased accordingly. The central part in the vertical direction of the reinforcing part 22 is compressed more than the central part in the vertical direction of the sealing part 20, and the heat insulating layer 14 in the central part in the vertical direction of the reinforcing part 22 is in the central part in the vertical direction of the sealing part 20. The density of the heat insulating layer 14 is higher. And the vertical direction center part of the sealing part 20 is formed more flexibly than the vertical direction center part of the reinforcement part. In addition, the density of the heat insulation layer 14 which comprises the general part 18 is higher than the density of the heat insulation layer 14 which comprises the up-down direction center part of the sealing part 20, and the up-down direction center part of the reinforcement part 22. FIG.

  The covering portion 28 is made of an adhesive that can adhere to the foam F and the skin material S. Here, as the adhesive, other materials such as a hot melt adhesive mainly composed of a thermoplastic resin such as polyamide, a thermosetting resin adhesive, and the like can be used. Various adhesives such as types and solvent dilution types can be used. The covering portion 28 formed by solidifying the adhesive has water repellency that does not substantially allow water (droplets) to pass therethrough, and has wear resistance and the like, similar to the skin layer 16. desirable. The covering portion 28 has an outer skin layer 16 (which is the outer surface (design surface) of the wall portion 12 (laminated member P)) from the end surface of the wall portion (laminated member) where the heat insulating layer 14 (foam F) faces outward. It is formed so as to cover the edge of the skin material S). That is, the covering portion 28 extends not only from the end surface of the wall portion 12 (laminated member P) but also from the portion covering the end surface to the front and back surfaces of the wall portion 12 over several millimeters in the embodiment. ing. The covering portion 28 is colored according to the color of the skin material S forming the skin layer 16. In the embodiment, a coloring material such as a pigment is blended in the adhesive forming the covering portion 28, and the color of the covering portion 28 is adjusted according to the skin material S. Therefore, even if the foam F is different in color from the skin material S, the heat insulating cover 10 as a whole, including the end face where the heat insulating layer 14 made of the foam F faces, forms the design surface of the heat insulating cover 10. The color of the skin layer 16 made of the material S is unified.

  Next, the manufacturing method of the heat insulation cover 10 which concerns on an Example is demonstrated. In the following description, when the laminated member P is the heat insulating cover 10, the direction corresponding to the vertical direction of the wall 12 is referred to as the short direction, and the direction corresponding to the width direction (circumferential direction) of the wall 12. Is referred to as the longitudinal direction. Sheet-like skin materials S and S are overlapped on both surfaces of the foam F formed in a plate shape with an adhesive, and the foam F is sandwiched between two skin materials S and S and laminated. The laminated member P is set on the forming means 30 (see FIGS. 6A and 6B). As the adhesive, one that exhibits adhesive force by heating at the time of heat compression molding described later is used, and the laminated member P is formed by simply superposing the skin material S coated with the adhesive on the foam F at this stage. In the laminated member P set in the means 30, the foam F and the skin material S are not bonded. As the adhesive, a thermosetting resin adhesive, a hot melt adhesive, or the like can be used. For example, a thermosetting type resorcinol resin (DFK resin) made of monovalent and polyhydric phenol is preferable. is there. In addition, a PET nonwoven fabric impregnated with DFK resin (for example, DF Corporation, trade name: Meyuka paper, type name: XP30215-1 (NP80-35)) and the like can be used.

  The forming means 30 is disposed on the upper side of the support portion 31 that supports the lower surface (other surface) that is the outer surface of the wall portion 12 in the laminated member P, and the inner surface of the wall portion 12 in the laminated member P. And pressing bodies 32, 34, and 36 that press the upper surface (one surface) from above (one surface side). The forming means 30 is configured to be able to heat the laminated member P via the support portion 31 and the pressing bodies 32, 34, and 36, and the pressing bodies 32, 34, and 36 can be moved back and forth with respect to the support portion 31. Yes. The pressing bodies 32, 34, and 36 have a pressing surface having a predetermined width extending in the longitudinal direction of the laminated member P, and can press the laminated member P over the longitudinal direction with a required width in the short direction. Yes. Here, the forming means 30 includes a first pressing set including two first deformation pressing bodies 32 and 32 spaced apart in the short direction and two second deformation pressing bodies 34 and 34 spaced apart in the short direction. A second pressing set and a forming pressing body 36 disposed between the first pressing set and the second pressing set are provided. The first and second pressing sets are configured to be able to press the laminated member P to a deeper position than the molded pressing body 36. The molding pressing body 36 is formed so that its pressing surface is wider in the lateral direction than the deformation pressing bodies 32 and 34. Further, in each pressing set, the deforming pressing bodies 32, 34 positioned on the outside are wider in the short side direction than the deforming pressing bodies 32, 34 positioned on the inside.

  As shown in FIGS. 6C and 6D, the upper portion of the wall portion 12 in the laminated member P set on the forming means 30 is moved upward by the two first deformation pressing bodies 32 and 32 ( The sealing portion 20 is formed between the two pressed parts 24 and 24 that are compression-molded by pressing while being pressed in parallel with a gap from one side) and heating and compressing. At the same time, the region on the lower side of the wall portion 12 in the laminated member P set in the forming means 30 is pressed by the two second deformation pressing bodies 34, 34 in parallel at intervals from above, 170 By compressing while heating for 20 seconds to 120 seconds (preferably 190 ° C., 45 seconds) at a temperature of 210 ° C. to 210 ° C., the compression pressing is performed between the two second pressing portions 26, 26. The reinforcement part 22 is formed. At the same time, the intermediate portion of the laminated member P is pressed from the upper side by a molding pressing body 36 over a predetermined range and compressed while being heated, so that it is recessed from the tips (upper ends) of the sealing portion 20 and the reinforcing portion 22. Thus, the general portion 18 formed by compression molding is formed. By such heat compression molding, the laminated member P including the general portion 18, the sealing portion 20, and the reinforcing portion 22 can be easily formed.

  Here, as the two deformed pressing bodies 32, 32, 34, 34 that make a pair press the positions separated in the short direction of the laminated member P in parallel, the two pressing parts 24, 24 that make a pair are formed. , 26, and 26, and is bent and deformed so that the space between the pressing parts 24, 24, 26, 26 is lowered toward the pressing parts 24, 26. And between the two pressing parts 24, 24, 26, 26 shaped so as to be thinner than the original thickness of the laminated member P by heat compression molding is pulled to the pressing parts 24, 24, 26, 26 on both sides. Since it is compressed from the central part toward the pressing parts 24, 24, 26, 26, the mountain-shaped sealing part 20 bulges from the pressing parts 24, 24, 26, 26 on both sides toward the central part and Reinforcing portions 22 are formed respectively. As described above, the sealing portion 20 and the reinforcing portion 22 are not formed by directly pressing the portions to be formed of the sealing portion 20 and the reinforcing portion 22 in the laminated member P with a mold or the like. It forms indirectly by carrying out the heat compression molding of both sides of the formation planned position of 22. In addition, the press site | part 24 heat-molded by the 1st deformation | transformation press body 32 located outside among 1st press groups becomes the upper general part 18C extended above the sealing part 20, and becomes 2nd press set. Among them, the second pressing portion 26 that is heated and compressed by the second deformation pressing body 34 located on the outside is a lower general portion 18 </ b> B that extends below the reinforcing portion 22.

  In the embodiment, the thickness dimension at the tip of the sealing portion 20 is substantially the same as the thickness of the laminated member P before heat compression molding, and the thickness dimension at the tip of the reinforcing portion 22 is before heat compression molding. It is formed so as to be thinner than the thickness of the laminated member P. Here, if the distance between the two pressing portions 24, 24 (26, 26) forming a pair is wide to some extent, the sealing portion 20 (reinforcing portion 22) between the pressing portions 24, 24 (26, 26) can be formed. If the central part (tip) is not compressed and the distance between the paired two pressing parts 24, 24 (26, 26) becomes narrow, the central part of the sealing part 20 (reinforcing part 22) is compressed and the pressing part The projecting dimension of the sealing portion 20 (reinforcing portion 22) from 24, 24 (26, 26) is reduced. In this way, the two pressing parts 24 that are heat compression molded by the two deforming pressing bodies 32, 32 (34, 34) by changing the distance between the two deforming pressing bodies 32, 32 (34, 34) of the pressing group. , 24 (26, 26) is adjusted so that the protruding dimension of the sealing portion 20 (reinforcing portion 22) from the pressing portions 32, 32 (34, 34) is within the thickness range of the original laminated member P. Can be easily controlled. In addition, the front-end | tip of the sealing part 20 (reinforcement part 22) between both the press parts 24 and 24 (26, 26) is made circular by widening the space | interval of the two press parts 24 and 24 (26, 26) which make a pair. It is also possible to form a flat shape instead of an arc shape.

  In the sealing part 20 (reinforcing part 22), it is pulled by the shaped pressing parts 32, 32 (34, 34) and is made of the foam F between the pressing parts 32, 32 (34, 34). The heat insulating layer 14 is deformed into a convex shape by being compressed, and the degree of compression of the heat insulating layer 14 increases as the pressure portions 32 and 32 (34, 34) are approached. That is, the density of the heat insulating layer 14 increases as the sealing portion 20 (reinforcing portion 22) moves from the central portion in the short-side direction toward the proximal end connected to the pressing portions 32 and 32 (34 and 34). And the density of the heat insulation layer 14 which comprises the center part of the reinforcement part 22 compressed rather than the sealing part 20 becomes higher than the density of the heat insulation layer 14 which comprises the center part of the sealing part 20. FIG. Thus, even if it does not use the foam F of a different density according to site | parts, such as the sealing part 20, the two press site | parts 32 and 32 (34, 34) spaced apart in parallel with the lamination | stacking member P are heat compression-molded. By doing so, the density of the heat insulation layer 14 of the sealing part 20 (reinforcement part 22) formed between both the press parts 32 and 32 (34, 34) can be easily densified and inclined. Further, the intermediate general portion 18A that is heat compression molded by the molding pressing body 36 between the deformation pressing bodies 32, 34 located inside of the first pressing group and the second pressing group includes the sealing section 20 and the reinforcement. The heat insulating layer 14 is compressed more than the central part of the part 22, and the density of the heat insulating layer 14 is higher than the density of the heat insulating layer 14 that forms the central part of the sealing part 20 and the reinforcing part 22.

  Further, in the molding means 30, the laminated member P is compression-molded while being heated, whereby the adhesive exhibits an adhesive force by heating, whereby the skin material S and the foam F are joined by the adhesive, and the foam F The skin layer 16 made of the skin material S is integrated on both surfaces of the heat insulating layer 14 made of. As described above, the heat insulating layer 14 and the skin layer 16 are integrated by heating when forming the sealing portion 20, the general portion 18, and the reinforcing portion 22 without bonding the foam F and the skin material S in advance. This can improve the efficiency of the manufacturing process.

  The laminated member P obtained by heat compression molding to the required shape in the molding means 30 and bonding the skin material S and the foam F to each side of its outer edge (terminal) is heated to become liquid. The adhesive is applied to the terminal by dipping in the hot melt adhesive. Note that the color of the hot melt adhesive is adjusted by blending a pigment or the like of a color matching the color of the skin material S. The hot melt adhesive is provided with an adhesive from the end face where the foam F in the laminated member P faces outward to the edge of the skin material S by pulling the outer edge of the laminated member P several millimeters from the end face and pulling it up. ing. Then, by cooling and solidifying the hot melt adhesive, the covering portion 28 is formed from the end face where the foam F in the laminated member P faces outward to the edge of the skin material S. The thickness of the covering portion 28 can be controlled by adjusting the viscosity of the hot melt adhesive.

  Finally, the laminated member P is formed into a cylindrical shape so that the sealing portion 20, the general portion 18 and the reinforcing portion 22 are inside. Accordingly, when the battery B is mounted, the general portion 18 and the reinforcing portion 22 arranged so as to be separated from the side surface of the box-shaped main body B1 in the battery B and the upper side surface of the box-shaped main body B1 are elastically contacted. The heat insulation cover 10 in which the wall part 12 provided with the one sealing part 20 was formed is obtained. The heat insulating cover 10 is bonded and fixed by ultrasonic welding or the like at both ends of the laminated member P that is overlapped with each other, or in a slit formed at one end of the laminated member P at the other end of the laminated member P. It is formed into a cylindrical shape by hooking the formed nail. Thereby, in the heat insulating cover 10 in which the laminated member P is formed in a rectangular tube shape, the covering portion 28 is provided on each of both opening edges of the rectangular tube that opens up and down, and among the portions that are overlapped and joined to each other, The covering portion 28 is provided on each of a side end portion facing the inside of the square tube and a side end portion facing the outside of the square tube.

  The heat insulating cover 10 configured as described above is attached so as to cover the battery B from above and accommodate the battery B inside. Since the lower opening defined by the lower general portion 18B is larger than the outer dimension of the battery B, the heat insulating cover 10 can be positioned by simply fitting the lower opening to the upper part of the battery B. Further, since the heat insulating cover 10 is formed to have an inner region defined by the reinforcing portion 22 and the intermediate general portion 18A larger than the outer dimensions of the battery B, the inner surface of the wall portion 12 and the side surface of the battery B are slid. The heat-insulating cover 10 can be lowered along the side surface of the battery B without making contact or with minimal sliding contact. That is, the heat insulating cover 10 can be mounted with a low load until the sealing portion 20 formed on the upper portion of the wall portion 12 reaches the upper portion of the battery B.

  The heat insulating cover 10 has an inner region defined by the sealing portion 20 provided on the upper portion of the wall portion 12 set to be smaller than the outer dimension of the battery B. The heat insulating cover 10 is lowered while causing the sealing portion 20 in contact with the side surface to interfere. Since the sealing portion 20 is formed on the upper portion of the wall portion 12, the range in which the heat insulating cover 10 is lowered while the sealing portion 20 is in contact with the side surface of the battery B is narrow, and the heat insulating cover 10 is attached to the battery B. The range where the load is applied is small. In addition, the heat insulating cover 10 is easy to apply force because the wall portion 12 covers most of the wall B when the sealing portion 20 contacts the side surface of the battery B, and is inclined even when the load increases. Problems such as misalignment, deformation, and buckling of the portion extending from the top of the battery B are unlikely to occur. Since the density of the heat insulating layer 14 constituting the tip of the sealing portion 20 is set low and the portion that contacts the battery B is relatively flexible, the sliding load of the sealing portion 20 on the battery B is reduced. can do. Thus, according to the heat insulating cover 10 of the embodiment, since the general portion 18 is provided on the wall portion 12 and the sealing portion 20 that contacts the battery B is made small, it is easy to attach to the battery B.

  The heat insulating cover 10 is sealed so that the lower end of the wall portion 12 is brought into contact with the gantry C on which the battery B is placed in a mounted state in which the entire periphery of the side surface of the battery B is covered with the wall portion 12. doing. Further, when the heat insulating cover 10 is attached to the battery B, there is a space G between the side face of the general part 18 and the reinforcing part 22 that are separated from the side face of the battery B. It can be sealed so that the space does not communicate with the outside of the G. That is, the heat insulating cover 10 exhibits not only the heat insulating performance of the wall portion 12 itself but also the heat insulating action by the air layer existing in the closed space G, and exhibits good heat insulating performance as a whole. In addition, since the reinforcement part 22 which protrudes from the general part 18 is provided in the lower part of the wall part 12, the clearance gap with the side surface of the battery B can be made small by this reinforcement part 22. FIG.

  Since the heat insulating layer 14 constituting the sealing portion 20 is configured to have a high density on the base end side connected to the general portion 18, the front end side that contacts the side surface of the battery B and elastically deforms is more elastic on the base end side. Can be supported. Thereby, while being able to suppress the sag of the sealing part 20, the elastic contact | abutting of the sealing part 20 with respect to the side surface of the battery B can be maintained, and the sealing state of the said space G can be maintained suitably. . Furthermore, the heat insulation cover 10 can improve rigidity as a whole by providing the wall part 12 with the reinforcing part 22 formed thicker than the general part 18.

  Since the end from the end face to the edge is covered with the covering portion 28, the heat insulating cover 10 covers the end face where the joint of the heat insulating layer 14 made of the foam F and the skin layer 16 made of the skin material S faces. It can be protected by the part 28. That is, the covering portion 28 indicates that the heat insulating layer 14 and the skin layer 16 are peeled off due to water or the like entering from the end surface of the wall portion 12 or coming into contact with another member such as the gantry C. Can prevent. Moreover, since the covering portion 28 is made of an adhesive having an adhesive force, the covering portion 28 is hardly peeled off from the end of the wall portion 12. Further, since the covering portion 28 is formed so as to extend not only from the end surface of the wall portion 12 but also from the end surface to the edge portions of both the front and back surfaces of the wall portion 12, the bonding area with the wall portion 12 is widened. It can be secured and more firmly fixed to the wall portion 12. Since the end face of the wall portion 12 is covered with the covering portion 28 adjusted to the color of the skin layer 16 forming the surface of the wall portion 12, the color of the heat insulating layer 14 facing the end face is different from that of the skin layer 16. However, it is possible to improve the appearance of the heat insulating cover 10 by hiding the heat insulating layer 14 with the covering portion 28.

  By simply immersing the end of the laminated member P that forms the wall portion 12 in the hot melt adhesive that has been liquefied by heating and solidifying the adhesive, the covering 28 can be easily applied to the end of the laminated member P by the adhesive. Can be formed. In addition, there is an advantage that the range and thickness of the covering portion 28 can be easily adjusted by adjusting the depth at which the laminated member P is immersed in the adhesive, the viscosity of the adhesive, and the like. That is, it is not necessary to perform complicated terminal processing such as winding and bonding the terminal of the laminated member P or cutting the terminal in the mold, and the laminated member P having the covering portion 28 formed by a simple process is obtained. be able to. Moreover, the color of the coating | coated part 28 can be changed easily by coloring an adhesive agent, the color of the heat insulation cover 10 whole including an end surface can be unified, and the high quality heat insulation cover 10 can be obtained.

(Change example)
The present invention is not limited to the configuration described above, and can be modified as follows, for example.
(1) In the embodiment, the reinforcement part that does not contact the side surface of the heat insulation object is provided at the lower part of the wall part of the heat insulation cover. However, the present invention is not limited to this, and as shown in FIG. A sealing portion (convex portion) 20 that protrudes inward from the general portion 18 and is elastically in contact with the side surface of the battery B may be provided below the portion 12. Since the space between the general portion 18 and the side surface of the battery B is closed by the upper and lower sealing portions 20 and 20 when the heat insulating cover 10 of the modified example is attached to the battery B in this way, Insulation can be achieved not only by the portion 12 but also by a layer of air present in the space. Moreover, the space between the general portion 18 and the side surface of the battery B is closed by the sealing portion 20 formed on the upper side of the wall portion 12 on the upper side and formed on the lower side of the wall portion 12. Since it is blocked by the sealing portion 20, the heat insulation can be improved by suppressing the air flow to the space. In addition, the cover part 28 can be provided also in the heat insulation cover 10 of a modification like the Example.
(2) The number of sealing portions is not limited to one, and a plurality of sealing portions may be formed apart from each other above and below the wall portion.
(3) The number of reinforcing portions is not limited to one, and a plurality of reinforcing portions may be formed spaced apart above and below the wall portion.
(4) The wall portion is not limited to a multilayer structure composed of a heat insulating layer and a skin layer, and may have another functional layer in addition to a single layer structure including only the heat insulating layer or the heat insulating layer and the skin layer.
(5) The positional relationship between the support portion and the pressing body in the forming means is not limited to the embodiment, and the support portion is disposed on the upper side and the pressing body is disposed on the lower side, or the support portion and the pressing body are disposed in the lateral relationship Other configurations such as arrangement may be used.
(6) The heat insulation object to which the heat insulation cover is attached is not limited to a vehicle battery, and may be a household battery. Moreover, you may mount | wear with other apparatuses, such as a water heater.

(7) The laminated member used for the heat insulating cover has been described as an example, but the configuration of the covering portion can also be applied to laminated members used for vehicle interior members such as door trims and roof liners, hood liners and other vehicle constituent members. It is.

  28 Covering part, F foam, P laminated member, S skin material

Claims (4)

In the laminated member constituted by superposing the foam and the skin material so that the skin material is on the front side and bonding the overlapping surfaces of each other,
A laminated member, wherein a covering portion made of an adhesive is formed so as to cover from an end face where the foam faces to an edge portion of the skin material.   The laminated member according to claim 1, wherein the covering portion is made of a hot melt adhesive.   The laminated member according to claim 1, wherein the covering portion is colored according to a color of the skin material. By laminating the foam and the skin material so that the skin material is on the front side, and bonding each other's overlapping surface, a laminated member is obtained,
A coating made of an adhesive so that the end of the laminated member is immersed in a liquid adhesive, and the adhesive applied to the terminal is solidified to cover the end face of the foam from the edge of the skin material. A method for manufacturing a laminated member, characterized in that a part is formed.

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