JP2020026149A - Panel body and hollow structure - Google Patents

Abstract

To provide a panel body and hollow structure making it possible to readily ensure reinforcement performance of a vehicle even when plural reinforcement members are employed.SOLUTION: A first reinforcement member 21 of a panel body 11 to be employed for the purpose of structuring a vehicle includes a first foamable member 22 serving as a first foamable body, a first cover member 23 shielding the first foamable member 22, and a first fixation member 24 that fixes the first cover member 23 to a constituent panel P1. A second reinforcement member 31 includes a second foamable member 32 serving as a second foamable body, a second cover member 33, and a second fixation member 34. The first foamable member 22 and second foamable member 32 are disposed to form a foamable body having a junction foamable part that includes in its orthogonal section, which is orthogonal to a longitudinal direction, at least part of a composition plane between the first foamable body and second foamable body, and a non-junction foamable part that does not include the composition plane in its orthogonal section. The panel body 11 forms an orthogonal section, which is smaller than the orthogonal section of the junction foamable part, in the non-junction foamable part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a panel body and a hollow structure.

  2. Description of the Related Art Conventionally, a reinforcing sheet that is attached to a steel plate that forms a vehicle and that reinforces the steel plate is known (see Patent Literature 1). This reinforcing sheet is formed by laminating a reinforcing layer such as a glass cloth on a resin layer containing an epoxy resin or the like.

JP 2005-139218 A

  By the way, the size, shape, and the like of the above-described reinforcing sheet are determined according to the range in which the steel sheet of the vehicle requires reinforcement. Here, when it is necessary to reinforce a relatively wide range in a vehicle configuration panel such as a steel plate, a plurality of divided reinforcement sheets are prepared, and the plurality of reinforcement sheets are arranged and attached to the configuration panel, for example, In addition, the size of each reinforcing sheet can be suppressed. However, in a reinforcing structure formed by arranging a plurality of reinforcing sheets (reinforcing members) in this manner, it may be difficult to obtain a reinforcing effect at a facing portion (boundary portion) of an adjacent reinforcing member.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a panel body and a hollow structure that can easily ensure the reinforcing performance of a vehicle even when a plurality of reinforcing members are used. To provide.

  A panel body that solves the above-mentioned problem includes a configuration panel having a longitudinal direction, and a reinforcing member that reinforces the configuration panel, and is a panel body used for a purpose of configuring a vehicle, wherein the reinforcing member is A first reinforcing member, and a second reinforcing member arranged adjacent to the first reinforcing member in the longitudinal direction, wherein the first reinforcing member foams by being heated. And a first cover that supports the first foamable member and covers a back side of the first foamable member opposite to a front side facing the component panel. A second fixing member for fixing the first cover member to the component panel, wherein the second reinforcing member foams when heated to form a second foam. A member, supporting the second foamable member, A second cover member for covering a back side of the foamable member opposite to a front side facing the component panel; a second fixing member for fixing the second cover member to the component panel; A foamable member and the second foamable member, wherein the bonded foamed portion includes at least a part of a bonded surface between the first foam and the second foam in an orthogonal cross section orthogonal to the longitudinal direction; The panel body is arranged so as to form a foam having a non-bonded foam portion not including the bonding surface in a cross section, and the panel body has an orthogonal cross section smaller than the cross section of the bonded foam portion in the non-bonded foam portion. It is configured to form.

  According to this configuration, since the non-joined foamed portion has an orthogonal cross section smaller than the orthogonal cross section of the joined foamed portion, it is possible to disperse the external force borne by the joined foamed portion to the non-joined foamed portion. In addition, by fixing (positioning) the first cover member and the second cover member to the constituent panel by the first fixing member and the second fixing member, respectively, relative displacement between the first cover member and the second cover member is achieved. Can be suppressed. Therefore, each foam, each cover member, each fixing member, and the component panel can be made to resist external force as an integral reinforcing structure.

  The panel body restricts foaming by at least one of the first cover member and the second cover member, and the constituent panel, so that an orthogonal cross section smaller than an orthogonal cross section of the bonded foam portion is formed by the non-bonded foam. It is preferable that it is constituted so that it may be formed in a part.

According to this configuration, for example, in the non-bonded foamed portion, the shape of a portion having an orthogonal cross section smaller than the orthogonal cross section of the bonded foamed portion can be stabilized.
In the above panel body, it is preferable that the first cover member has a first wall portion covering at least a part of a side surface connecting a front surface and a back surface of the first foamable member.

  According to this configuration, the direction in which the first foamable member foams can be regulated by the first wall portion. Therefore, by easily arranging the first foam formed from the first foamable member at a desired position, desired reinforcement performance is easily obtained.

In the above panel body, it is preferable that the second cover member has a second wall portion covering at least a part of a side surface connecting a front surface and a back surface of the second foamable member.
According to this configuration, the direction in which the second foamable member foams can be regulated by the second wall portion. Therefore, by easily arranging the second foam formed from the second foamable member at a desired position, desired reinforcement performance is easily obtained.

  In the above panel body, the first reinforcing member and the second reinforcing member may have a gap between at least a part of the first foamable member and the second foamable member and the component panel. Preferably, it is attached to the component panel.

  According to this configuration, the electrodeposition liquid for electrodeposition coating is caused to flow into a gap between at least a part of the first foamable member and the second foamable member and the component panel, and the component panel is electrodeposited. Can be.

  A hollow structure that solves the above-mentioned problem includes a hollow body formed between the configuration panel and the outer panel, including: the panel body; and an outer panel disposed outside the vehicle than the configuration panel. Having.

In the above-mentioned hollow structure, it is preferred that the reinforcing member is arranged in the hollow part.
According to this configuration, the hollow structure can be reinforced by the foam formed in the hollow portion. For this reason, by avoiding the contact between the foam and the member disposed outside the hollow portion, the reinforcing performance of the hollow structure by the foam can be further exhibited.

In the above-mentioned hollow structure, it is preferred that the outer panel and the first reinforcing member and the second reinforcing member are spaced apart from each other.
According to this configuration, even if the outer panel is deformed so as to narrow the hollow portion by an external force, the outer panel does not immediately contact the first reinforcing member and the second reinforcing member. Therefore, even if the outer panel is deformed, it is possible to prevent the reinforcing performance of the first reinforcing member and the second reinforcing member from being immediately reduced, and thus the configuration using the first reinforcing member and the second reinforcing member. It is possible to maintain the reinforcing effect of the panel more.

  According to the present invention, even when a plurality of reinforcing members are used, the reinforcing performance of the vehicle can be easily ensured.

It is an exploded perspective view showing a hollow structure of an embodiment. It is a perspective view which shows a hollow structure. It is a front view which cuts out and shows some hollow structures. FIG. 4 is a sectional view taken along line 4-4 in FIG. 3. (A) is a cross-sectional view showing a hollow structure, and (b) is a cross-sectional view showing a hollow structure in which a foam is formed. It is a front view which cuts out and shows some hollow structures in which the foam was formed. FIG. 7 is a cross-sectional view along the line 7-7 in FIG. It is a perspective view which shows the example of a change of the member for reinforcement.

Hereinafter, embodiments of a panel body and a hollow structure will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the panel body 11 is used for configuring a vehicle, and includes a configuration panel P1 having a longitudinal direction D1 and a reinforcing member 12 for reinforcing the configuration panel P1. The reinforcing member 12 includes a first reinforcing member 21 and a second reinforcing member 31 arranged adjacent to the first reinforcing member 21 in the longitudinal direction D1.

  As shown in FIGS. 1 to 4, the first reinforcing member 21 supports the first foamable member 22 and the first foamable member 22 that is foamed by being heated to become a first foam. A first cover member 23 is provided to cover the back surface S2 of the first foamable member 22 opposite to the front surface S1 facing the component panel P1. The first reinforcing member 21 further includes a first fixing member 24 for fixing the first cover member 23 to the component panel P1.

  The second reinforcing member 31 supports the second foamable member 32 and the second foamable member 32 which is foamed by heating to become the second foamed member. And a second cover member 33 that covers the back surface S2 side opposite to the front surface S1 side facing the front surface S1 side. The second reinforcing member 31 further includes a second fixing member 34 for fixing the second cover member 33 to the component panel P1.

  The first foamable member 22 and the second foamable member 32 are arranged so as to form a foam in which the first foam and the second foam are joined. More specifically, as shown in FIGS. 3 and 4, a first foamable end E11 which is one end of both ends in the longitudinal direction D1 of the first foamable member 22, and a longitudinal direction of the second foamable member 32. The second foamable end E21 which is one end of both ends in the direction D1 is arranged to face the first foam and the second foam so as to be joined. In the present embodiment, a gap is formed between the first foamable end E11 and the second foamable end E21, but the first foamable end E11 and the second foamable end E21 May be contacted. In the first foamable member 22, the first foamable end E11 is formed to be thicker than portions other than the first foamable end E11. In the second foamable member 32, the second foamable end E21 is formed thicker than portions other than the second foamable end E21.

  As shown in FIG. 4, a first cover end E12 which is one end of both ends in the longitudinal direction D1 of the first cover member 23, and one end of both ends in the longitudinal direction D1 of the second cover member 33. The second cover end portion E22, which is a portion, is disposed to face. In the present embodiment, a gap is formed between the first cover end E12 and the second cover end E22, but the first cover end E12 and the second cover end E22 are brought into contact with each other. Is also good.

  In the first cover member 23, the first cover end E12 has a shape that bulges away from the component panel P1. In the second cover member 33, the second cover end E22 has a shape that swells in a direction away from the component panel P1.

  As shown in FIG. 5A, the first foamable member 22 and the second foamable member 32 are provided with a gap between at least a part of the first foamable member 22 and the second foamable member 32 and the component panel P1. It is arranged with G1.

  The first cover member 23 includes a first cover main body B1 having a flat plate shape, and a first wall W1 standing upright on the first cover main body B1. The first wall portion W1 covers at least a part of the side surface S3 connecting the front surface S1 and the back surface S2 of the first foamable member 22. The second cover member 33 includes a second cover main body B2 having a flat plate shape, and a second wall W2 erected on the second cover main body B2. The second wall portion W2 covers at least a part of the side surface S3 connecting the front surface S1 and the back surface S2 of the second foamable member 32. The first wall portion W1 of the present embodiment covers both side surfaces S3 and S3 of the first foamable member 22 extending in the longitudinal direction D1. The second wall portion W2 also covers both side surfaces S3 and S3 extending in the longitudinal direction D1 of the second foamable member 32. The side surfaces S3 connecting the front surface S1 and the back surface S2 are both side surfaces of the first foamable member 22 extending in the short direction and both side surfaces of the second foamable member 32 extending in the short direction. including.

  The first wall portion W1 preferably extends to a position closer to the constituent panel P1 than the first foamable member 22. The second wall portion W2 preferably extends to a position closer to the constituent panel P1 than the second foamable member 32. In other words, the height H1 of the first wall portion W1 is preferably larger than the thickness T1 of the first foamable member 22. Further, the height dimension H2 of the second wall portion W2 is preferably larger than the thickness dimension T2 of the second foamable member 32.

  As shown in FIG. 1, the first fixing member 24 is configured by a locking clip that locks into the mounting hole PH of the component panel P1. The second fixing member 34 is also configured by a locking clip that locks in the mounting hole PH of the component panel P1. The number of the first fixing members 24 and the number of the second fixing members 34 may be singular or plural, respectively. It is preferable that the first fixing members 24 include a plurality of first fixing members 24 which are arranged apart from each other in the length direction of the first cover member 23. It is preferable that the second fixing member 34 also includes a plurality of second fixing members 34 that are spaced apart in the length direction of the second cover member 33.

  As shown in FIGS. 3 and 6 and FIGS. 4 and 7, the first foamable member 22 and the second foamable member 32 form a foam 41 having a joined foamed portion 41a and a non-joined foamed portion 41b. It is arranged to be. The joining foam part 41a includes at least a part of the joining surface FS between the first foam F1 and the second foam F2 in an orthogonal cross section orthogonal to the longitudinal direction D1. The non-bonded foam portions 41b do not include the bonding surface FS in the orthogonal cross section, and are arranged on both sides of the bonded foam portions 41a.

  The panel body 11 is configured to form an orthogonal cross section smaller than the orthogonal cross section of the bonded foam part 41a in the non-bonded foam part 41b. Here, the orthogonal cross section smaller than the orthogonal cross section of the bonding foam portion 41a refers to an orthogonal cross section smaller than the smallest orthogonal cross section among the orthogonal cross sections of the bonding foam portion 41a. The panel body 11 of the present embodiment regulates foaming of an orthogonal cross section smaller than the orthogonal cross section of the bonded foamed portion 41a in the non-bonded foamed portion 41b by the first cover member 23 and the second cover member 33, and the component panel P1. It is constituted so that it may form.

Next, the material forming the reinforcing member 12 will be described together with the manufacturing method.
The first foamable member 22 and the second foamable member 32 are obtained by molding a foamable material by a known molding method such as extrusion molding, press molding, or injection molding. The foamable material contains a base material, a foaming agent, and a crosslinking agent. A filler, a plasticizer, and the like can be contained in the foamable material as needed. Substrates include synthetic resins, elastomers and rubbers. Examples of the synthetic resin include polyolefin, epoxy resin, phenol resin, urethane resin, acrylic resin, styrene resin, EVA (ethylene / vinyl acetate copolymer), and the like. Examples of the elastomer include RB (polybutadiene elastomer), SBS (styrene / butadiene / styrene block copolymer), SIS (styrene / isoprene / styrene block copolymer), SEBS (styrene / ethylene / butylene / styrene block copolymer) and the like. No. Rubbers include NR (natural rubber), SBR (styrene / butadiene rubber), BR (butadiene rubber), NBR (nitrile rubber), CR (chloroprene rubber), IR (isoprene rubber), IIR (butyl rubber), EPDM (ethylene Propylene diene terpolymer), UR (urethane rubber), ENR (epoxidized natural rubber), EPM (ethylene / propylene rubber) and the like. Examples of the foaming agent include azodicarbonamide and dinitropentamethylenetetramine, and examples of the crosslinking agent include dimethylurea and dicyandiamide, and examples of the filler include calcium carbonate, barium sulfate, ferrite, and silica.

The first foamable member 22 and the second foamable member 32 may be made of foamable materials different from each other.
The first cover member 23 is formed of a material that can withstand heating for foaming and curing the first foamable member 22. The second cover member 33 is formed of a material that can withstand heating for foaming and curing the second foamable member 32. The first cover member 23 and the second cover member 33 may be made of different materials. The first cover member 23 and the second cover member 33 of the present embodiment are made of polyamide. The first cover member 23 and the second cover member 33 can be formed by a well-known molding method such as extrusion molding, press molding, and injection molding.

  The first fixing member 24 and the second fixing member 34 are also formed of a material that can withstand the above-mentioned heating, similarly to the first cover member 23 and the second cover member 33. It is preferable that the first cover member 23 and the first fixing member 24 are integrally formed. It is preferable that the second cover member 33 and the second fixing member 34 are also integrally formed.

  The method of attaching the first foamable member 22 to the first cover member 23 and the method of attaching the second foamable member 32 to the second cover member 33 include, for example, use of a locking member, injection molding, fitting, and adhesion. Use of agents and adhesives. For example, the first foamable member 22 or the second foamable member 32 is provided with adhesiveness, and the first cover member 23 or the second foamable member 32 is made using the self-adhesiveness of the first foamable member 22 or the second foamable member 32. It may be attached to the two cover member 33.

  The panel body 11 can be obtained by attaching the first reinforcing member 21 and the second reinforcing member 31 obtained as described above to the constituent panel P1 using the first fixing member 24 and the second fixing member 34. it can.

The panel body 11 described above can be applied to a part of a hollow structure constituting a vehicle.
As shown in FIG. 1 and FIG. 2, the hollow structure 51 includes a panel body 11 and an outer panel P2 arranged outside the vehicle with respect to the component panel P1 of the panel body 11. The hollow structure 51 has a hollow portion 52 located between the component panel P1 and the outer panel P2. The outer panel P2 of this embodiment is arranged so as to cover the reinforcing member 12. That is, the reinforcing member 12 is disposed in the hollow portion 52 of the hollow structure 51. Further, the reinforcing member 12 is arranged in the hollow portion 52 so as to be separated from the outer panel P2. In other words, the outer panel P2 is joined to the component panel P1 in a non-contact state with the reinforcing member 12. The constituent panel P1 and the outer panel P2 are made of a metal material (steel plate). Examples of the configuration panel P1 and the outer panel P2 include panels used for pillars, door panels, roof panels, trunk lids, front hood panels, various reinforcements, and the like.

The hollow structure 51 is obtained by joining the constituent panel P1 of the panel body 11 and the outer panel P2 by spot welding.
Next, main operations of the panel body 11 will be described.

  By heating the reinforcing member 12 disposed in the hollow portion 52 of the hollow structure 51 from the outside, the first foamable member 22 and the second foamable member 32 are foamed and cured. The heating of the reinforcing member 12 can be performed by using a drying process when the component panel P1 and the outer panel P2 are coated (electroplated). Note that a known heating device using a heat source such as electricity or steam may be used for heating the reinforcing member 12.

  As shown in FIG. 5B, after the above-described heating, a first foam F1 and a second foam F2 are formed, and as shown in FIGS. 6 and 7, the first foam F1 and the second foam F2 are formed. The foam F2 becomes the foam 41 bonded to each other.

  Here, as described above, since the panel body 11 is configured to form an orthogonal cross section smaller than the orthogonal cross section of the bonding foam part 41a in the non-bonding foam part 41b, the external force borne by the bonding foam part 41a is reduced. It becomes possible to disperse in the non-bonding foam part 41b. Further, the first cover member 23 and the second cover member 33 are fixed (positioned) to the component panel P1 by the first fixing member 24 and the second fixing member 34, respectively, so that the first cover member 23 and the second cover member 33 are formed. Relative misalignment can be suppressed. Therefore, the first foam F1, the second foam F2, the first cover member 23, the second cover member 33, the first fixing member 24, the second fixing member 34, and the component panel P1 are formed as an integral reinforcing structure. Can resist external force.

Next, the operation and effect of the present embodiment will be described.
(1) The reinforcing member 12 of the panel body 11 includes a first reinforcing member 21 and a second reinforcing member 31 arranged adjacent to the first reinforcing member 21 in the longitudinal direction D1. The first reinforcing member 21 includes a first foamable member 22, a first cover member 23, and a first fixing member 24. The second reinforcing member 31 includes a second foamable member 32, a second cover member 33, and a second fixing member 34. The first foamable member 22 and the second foamable member 32 are arranged so as to form a foam 41 having a bonded foamed portion 41a and a non-bonded foamed portion 41b. The panel body 11 is configured to form an orthogonal cross section smaller than the orthogonal cross section of the bonded foam part 41a in the non-bonded foam part 41b.

  According to this configuration, since it is possible to resist external force as an integral reinforcing structure as described above, there is a case where a plurality of reinforcing members (the first reinforcing member 21 and the second reinforcing member 31) are used. Even so, reinforcement performance of the vehicle can be easily ensured.

  (2) The panel body 11 restricts the foaming by the first cover member 23 and the second cover member 33 and the constituent panel P1, so that the orthogonal cross section smaller than the orthogonal cross section of the joint foam part 41a is the non-joining foam part. 41b.

  In this case, for example, in the non-bonded foamed portion 41b, the shape of a portion having an orthogonal cross section smaller than the orthogonal cross section of the bonded foamed portion 41a can be stabilized. Therefore, more stable reinforcement performance can be exhibited.

  (3) The first cover member 23 has a first wall portion W1 that covers at least a part of a side surface S3 that connects the front surface S1 and the back surface S2 of the first foamable member 22. In this case, the direction in which the first foamable member 22 foams can be regulated by the first wall portion W1. Therefore, by easily arranging the first foam F1 formed of the first foamable member 22 at a desired position, desired reinforcement performance is easily obtained.

  (4) The second cover member 33 has the second wall portion W2 that covers at least a part of the side surface S3 that connects the front surface S1 and the back surface S2 of the second foamable member 32. In this case, the direction in which the second foamable member 32 foams can be regulated by the second wall portion W2. Therefore, by easily arranging the second foam F2 formed from the second foamable member 32 at a desired position, desired reinforcement performance is easily obtained.

  (5) The first reinforcing member 21 and the second reinforcing member 31 are configured to have a gap G1 between at least a part of the first foamable member 22 and the second foamable member 32 and the component panel P1. It is attached to panel P1. In this case, an electrodeposition liquid (electrodeposition paint) for electrodeposition coating is caused to flow into the gap G1 between at least a part of the first foamable member 22 and the second foamable member 32 and the configuration panel P1 to form the configuration panel. P1 can be electrodeposited.

  (6) The hollow structure 51 includes the panel body 11 and an outer panel P2 disposed outside the vehicle with respect to the component panel P1. The hollow structure 51 has a hollow portion 52 formed between the component panel P1 and the outer panel P2. For example, a hollow structure 51 having such a reinforcing performance is obtained.

  (7) The reinforcing member 12 of the hollow structure 51 is disposed in the hollow part 52. In this case, the hollow structure 51 can be reinforced by the foam 41 formed by the hollow portion 52. For this reason, by avoiding contact between a member disposed outside the hollow portion 52 and the foam 41, the reinforcing performance of the hollow structure 51 by the foam 41 can be further exhibited.

  (8) In the hollow structural body 51, the outer panel P2 and the first reinforcing member 21 and the second reinforcing member 31 are arranged apart from each other. In this case, even if the outer panel P2 is deformed so as to narrow the hollow portion 52 by an external force, the outer panel P2 does not immediately contact the first reinforcing member 21 and the second reinforcing member 31. Therefore, even if the outer panel P2 is deformed, it is possible to prevent the reinforcing performance of the first reinforcing member 21 and the second reinforcing member 31 from being immediately reduced, so that the first reinforcing member 21 and the second reinforcing member 21 can be prevented. It is possible to further maintain the reinforcing effect of the component panel P1 by the use member 31.

(Example of change)
The above embodiment may be modified as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

-The 1st foamable member 22 and the 2nd foamable member 32 may be arrange | positioned in the state which does not have gap G1 between the 1st foamable member 22 and the 2nd foamable member 32, and component panel P1. .
In the hollow structure 51, at least one of the first reinforcing member 21 and the second reinforcing member 31 may be arranged in contact with the outer panel P2.

In the hollow structure 51, the reinforcing member 12 may not be disposed in the hollow portion 52 but may be disposed inside the vehicle of the structural panel P1.
The configuration panel P1 of the panel body 11 may be a panel used for an application (vehicle structure) in which the hollow portion 52 is not formed.

  -The 1st wall part W1 may be arrange | positioned so that the side surface located in the 1st foaming member 22 and the side opposite to the side surface which opposes the 2nd foaming member 32 may be covered. The second wall portion W2 may be disposed so as to cover a side surface or the like of the second foamable member 32 that is located on the opposite side to the side surface facing the first foamable member 22.

-The first wall portion W1 of the first cover member 23 may be omitted. The second wall portion W2 of the second cover member 33 may be omitted.
The configuration of the panel body 11 that forms an orthogonal cross section smaller than the orthogonal cross section of the bonded foam part 41a in the non-bonded foam part 41b is formed by foaming both the first cover member 23 and the second cover member 33 and the component panel P1. The configuration is not limited to this, and foaming may be restricted by at least one of the first cover member 23 and the second cover member 33 and the configuration panel P1. As a result, at least one of the first cover member 23 and the second cover member 33 and the non-bonded foam portion 41b disposed at a position sandwiched between the component panel P1 and the orthogonal cross section smaller than the cross section of the bonded foam portion 41a. Can be formed.

  -The part which has an orthogonal cross section smaller than the orthogonal cross section of the bonded foam part 41a among the non-bonded foam parts 41b may be the whole non-bonded foam part 41b, or may be a part. For example, by partially changing the width dimension of the first cover member 23 or the second cover member 33, the size of the orthogonal cross section of the foam 41 can be adjusted. Also, for example, by partially changing the width dimension of the first foamable member 22 or the second foamable member 32, the size of the orthogonal cross section of the foam 41 can be adjusted.

  Further, for example, by forming irregularities partially on the first cover member 23 or the second cover member 33 or the component panel P1, the position of a portion having an orthogonal cross section smaller than the orthogonal cross section of the joint foaming portion 41a is set. be able to. Further, for example, by forming a concave portion in the first foamable member 22 or the second foamable member 32, a portion having an orthogonal cross section smaller than the orthogonal cross section of the bonded foamed portion 41a in the non-bonded foamed portion 41b is formed. It can also be formed between the first cover member 23 and the second cover member 33.

  In addition, without restricting foaming by at least one of the first cover member 23 and the second cover member 33 and the configuration panel P1, an orthogonal cross section smaller than the orthogonal cross section of the joint foam part 41a is formed in the non-joint foam part 41b. May be.

-As shown in FIG. 8, the reinforcing member 12 can be changed to a configuration further including a third reinforcing member 61.
In this case, for example, the third reinforcing member 61 can be arranged adjacent to the second reinforcing member 31 in the longitudinal direction D1. The third reinforcing member 61 includes a third foamable member 62, a third cover member 63, and a third fixing member 64, like the first reinforcing member 21 and the second reinforcing member 31. The second foamable member 32 and the third foamable member 62 are bonded to a bonded foamed part including at least a part of a bonding surface between the second foam F2 and the third foam in an orthogonal cross section orthogonal to the longitudinal direction. It is arranged to form a foam having a non-bonded foam portion that does not include the plane in the orthogonal cross section. The panel body including the third reinforcing member 61 of this modified example is configured so that an orthogonal cross section smaller than the orthogonal cross section of the bonded foam portion is formed in the non-bonded foam portion. In addition, by arranging the third reinforcing member 61 adjacent to the first reinforcing member 21 in the longitudinal direction, a joint surface between the first foam F1 and the third foam is formed, and a joint foam portion is formed. You may comprise so that the orthogonal cross section smaller than an orthogonal cross section may be formed in a non-bonding foam part.

As described above, even when the reinforcing member 12 is composed of three or more reinforcing members, it is easy to ensure the reinforcing performance of the vehicle.
-The 1st cover member 23 or the 2nd cover member 33 may have a notch or a through-hole.

  -The first reinforcing member 21 and the second reinforcing member 31 are configured to be integrally assembled in advance, and the previously assembled first reinforcing member 21 and the second reinforcing member 31 are attached to the configuration panel P1. Thus, the panel body 11 can be obtained.

-The 1st cover member 23 or the 2nd cover member 33 may be arrange | positioned so that it may straddle between the 1st foamable end part E11 and the 2nd foamable end part E21.
-The shape of the component panel P1 is not limited to a flat plate shape, and may be a shape having a step portion, an uneven portion, and the like. Further, the shape of the first cover main body B1 or the second cover main body B2 is not limited to a flat plate shape, but may be a shape having a step portion, an uneven portion, or the like.

  The hollow structure 51 includes, in addition to the component panel P1 and the outer panel P2, a panel such as an inner panel disposed inside the vehicle of the component panel P1 and an outer panel disposed outside the vehicle of the outer panel P2. You may.

The technical ideas that can be grasped from the above embodiment and modified examples will be described below.
-A reinforcing panel body used for a purpose of configuring a vehicle, wherein the reinforcing panel body has a longitudinal direction, a first foam, and supports the first foam, and is in contact with the structural panel in the first foam. A first cover member that is in contact with the back side opposite to the front side, a first fixing member that fixes the first cover member to the component panel, a second foam, and supports the second foam; A second cover member that is in contact with the back surface of the second foam opposite to the front surface that is in contact with the component panel; and a second fixing member that fixes the second cover member to the component panel. The foam composed of the first foam and the second foam has at least one of the joining surfaces of the first foam and the second foam when a cross section orthogonal to the longitudinal direction is an orthogonal cross section. With a foamed joint that contains And a non-bonded foamed portion not including the joint surface in an orthogonal cross-section, at least a portion of the non-bonded foam part comprises a smaller cross section perpendicular than perpendicular cross-section in the joint foam section, the reinforcing panel body.

DESCRIPTION OF SYMBOLS 11 ... Panel body, 12 ... Reinforcement member, 21 ... 1st reinforcement member, 22 ... 1st foaming member, 23 ... 1st cover member, 24 ... 1st fixing member, 31 ... 2nd reinforcement member, 32 ... second foamable member, 33 ... second cover member, 34 ... second fixing member, 41 ... foam, 41a ... bonded foam part, 41b ... non-bonded foam part, 51 ... hollow structure, 52 ... hollow part, 61: third reinforcing member, 62: third foamable member, 63: third cover member, 64: third fixing member, B1: first cover main body, B2: second cover main body, E11: first Foamable end, E12: first cover end, E21: second foamable end, E22: second cover end, F1: first foam, F2: second foam, FS: joint surface, G1 ... gap, H1, H2 ... height dimension, P1 ... component panel, P2 ... outer panel, PH ... mounting hole, S1 ... table , S2 ... backside, S3 ... aspects, T1, T2 ... thickness, W1 ... first wall portion, W2 ... second wall portion.

Claims (8)

A panel body having a longitudinal direction and a reinforcing member for reinforcing the structural panel, comprising:
The reinforcing member includes a first reinforcing member, and a second reinforcing member that is arranged adjacent to the first reinforcing member in the longitudinal direction.
The first reinforcing member includes:
A first foamable member that expands by being heated to become a first foam, and that supports the first foamable member and is opposite to a surface side of the first foamable member facing the component panel. A first cover member that covers a back surface side; and a first fixing member that fixes the first cover member to the component panel.
The second reinforcing member includes:
A second foamable member that expands by being heated to become a second foam, and that supports the second foamable member and is opposite to a surface side of the second foamable member facing the component panel. A second cover member that covers the back side, and a second fixing member that fixes the second cover member to the component panel;
The first foamable member and the second foamable member,
A bonding foam portion including at least a part of a bonding surface between the first foam and the second foam in an orthogonal cross section orthogonal to the longitudinal direction, and a non-bonding foam not including the bonding surface in the orthogonal cross section Parts are arranged to form a foam having
The panel body, wherein the panel body is configured to form an orthogonal cross section smaller than an orthogonal cross section of the bonded foam section in the non-bonded foam section.   By restricting foaming by at least one of the first cover member and the second cover member and the component panel, an orthogonal cross section smaller than an orthogonal cross section of the bonded foam portion is formed in the non-bonded foam portion. The panel body according to claim 1, wherein the panel body is configured as follows.   3. The panel body according to claim 1, wherein the first cover member has a first wall portion that covers at least a part of a side surface connecting a front surface and a back surface of the first foamable member. 4.   The said 2nd cover member has a 2nd wall part which covers at least one part of the side surface which connects the front surface and back surface of the said 2nd foamable member, The Claims any one of Claims 1-3. Panel body.   The first reinforcing member and the second reinforcing member are attached to the component panel with a gap between at least a part of the first foamable member and the second foamable member and the component panel. The panel body according to any one of claims 1 to 4, which is provided.   A panel body according to any one of claims 1 to 5, and an outer panel disposed outside of the vehicle with respect to the configuration panel, formed between the configuration panel and the outer panel. A hollow structure having a hollow portion to be formed.   The hollow structure according to claim 6, wherein the reinforcing member is disposed in the hollow portion. The hollow structure according to claim 7, wherein the outer panel is spaced apart from the first reinforcing member and the second reinforcing member.