JP2013189111A - Roof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof panel configured to prevent an increase of manufacturing man-hours, while mitigating the influence of external light on adhesive.SOLUTION: A roof panel 12 is formed of resin two color molding materials, a transparent material and an opaque material, to close an opening 11 formed in a vehicle roof 10. The roof panel 12 includes: a body 21 formed of the transparent material spread over along the opening 11; and an attachment part 22 formed of the opaque material, and arranged closer to the center than a peripheral edge 21a of the body 21, laminated below and along the whole circumference of the body 21, and fixed to a reinforcing member 32 with adhesive 31.

Description

  The present invention relates to a resin roof panel mounted on a roof portion of a vehicle.

  Conventionally, as such a roof panel, what was described, for example in patent documents 1 is known. As shown in FIG. 7A, the roof panel 90 is made of resin, and is fixed to the reinforcing member 93 by an adhesive 92 at an attachment portion 91 partitioned by a peripheral edge portion 90 a of the roof panel 90. . The reinforcing member 93 is for preventing the peripheral edge portion 90a of the roof panel 90 from being deformed by, for example, an upward suction force generated when the vehicle travels at a high speed.

Japanese Patent No. 4419308

  Incidentally, the roof panel 90 of Patent Document 1 employs a transparent material as a resin material. However, in the structure in which such a transmissive material is fixed to the reinforcing member 93 with the adhesive 92, the adhesive 92 is likely to deteriorate due to the influence of external light, for example, and the durability is inevitably lowered.

  Therefore, as shown in FIG. 7B, it is presumed that the peripheral edge portion 90a of the roof panel 90 has a two-layer structure of a transmissive material M11 and an impermeable material M12 by, for example, two-color molding. In this way, if the upper layer portion and the lower layer portion of the peripheral edge portion 90a of the roof panel 90 are the transmissive material M11 and the non-transmissive material M12, respectively, the influence of external light on the adhesive 92 can be reduced, and durability is improved. can do.

  However, since resin leakage or the like occurs due to the difference in outer circumference between the upper layer portion and the lower layer portion (the permeable material M11 and the non-permeable material M12) at the time of two-color molding, a subsequent process for terminal processing such as cutting the peripheral edge after molding is performed. Necessary to increase manufacturing man-hours.

  The objective of this invention is providing the roof panel which can suppress the increase in a manufacturing man-hour, reducing the influence of the external light with respect to an adhesive agent.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a roof panel made of a two-color molded material of a resin permeable material and an impermeable material, and closing an opening formed in a roof portion of a vehicle. A main body made of a permeable material that extends along the entire opening, and is laminated below the entire circumference of the main body on the center side of the peripheral edge of the main body, and is bonded to the other member by an adhesive. And a mounting portion made of an impermeable material fixed to the gist.

  According to the same configuration, since the attachment portion fixed to the other member by the adhesive is an impermeable material, the influence of external light on the adhesive can be reduced and durability can be improved. Can do. Moreover, the said attaching part is laminated | stacked under the said main-body part in the center side rather than the said peripheral part of the said main-body part, and the said peripheral part itself becomes a 1 layer structure only of a permeation | transmission material. Accordingly, the peripheral edge of the roof panel can be formed only by the peripheral edge of the transmission material (main body part), the outer shape accuracy of the peripheral edge of the roof panel can be determined by the mold, and a post-process for terminal processing is performed. The production man-hours can be reduced by the amount that is unnecessary.

The invention according to claim 2 is summarized in that, in the roof panel according to claim 1, the shape of the joint surface of the main body portion and the attachment portion is the same as the shape of the lower surface of the attachment portion.
According to the same configuration, after the two-color molding of the main body portion and the attachment portion (transmitting material and non-permeable material), after molding the lower surface (that is, the joining surface) of the main body portion with a mold, Since the lower surface of the mounting portion can be formed by shifting, the number of necessary dies can be reduced.

The gist of the invention described in claim 3 is that, in the roof panel according to claim 2, uneven portions are formed on the joint surface between the main body portion and the mounting portion and the lower surface of the mounting portion. .
According to the same configuration, since the uneven portion is formed on the joint surface between the main body portion and the attachment portion, the contact area increases, so that the joint strength of the main body portion and the attachment portion by two-color molding is increased. Can be improved. In addition, since the uneven portion is formed on the lower surface of the attachment portion, it is possible to improve the bonding strength of the attachment portion and the adhesive as the contact area increases.

  Invention of Claim 4 is the roof panel as described in any one of Claims 1-3. WHEREIN: The edge part by the side of the said peripheral part of the joining surface of the said main-body part and the said attaching part, and the said center side The gist is that the end portions are inclined.

  According to this configuration, the impervious material (second color) is formed by inclining the peripheral edge side end portion and the central side end portion of the joint surface between the main body portion and the attachment portion, respectively. In doing so, the stress applied to the transmission material can be reduced.

  Invention of Claim 5 is the roof panel as described in any one of Claims 1-4. WHEREIN: The edge part of the said peripheral part side of the said attaching part and the edge part of the said center side WHEREIN: The said main-body part is provided. The gist is that each of the protrusions protruding downward from the lower surface is formed.

  According to the same configuration, the projecting portions that project from the lower surface of the main body portion (the bottom surface of the transmission material) are formed at the end portion on the peripheral edge side and the end portion on the center side of the main body portion, respectively. Further, it is possible to prevent the hard coat applied to the vehicle outer surface of the main body (transmitting material) from entering the mounting portion. Therefore, it can suppress that a hard-coat adheres to the adhesion surface which applies the said adhesive agent of the said attachment part, and adhesion | attachment of this adhesive agent is inhibited.

  According to the present invention, it is possible to provide a roof panel capable of suppressing an increase in manufacturing man-hours while alleviating the influence of external light on the adhesive.

1 is a plan view of a vehicle to which a first embodiment of the present invention is applied. Sectional drawing along the AA line of FIG. Sectional drawing which expands and shows the same embodiment typically. (A) (b) is sectional drawing which shows the manufacturing method of the embodiment typically. Sectional drawing which shows the 2nd Embodiment of this invention typically. Sectional drawing which shows the deformation | transformation form of this invention typically. (A) (b) is sectional drawing which shows a prior art form.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. In the following, the vehicle front-rear direction is referred to as “front-rear direction”, and the upper and lower directions in the vehicle height direction are referred to as “upward” and “downward”, respectively.

  As shown in FIG. 1, a vehicle roof 10 such as an automobile is provided with a substantially square opening 11 and a substantially square roof panel 12 made of a two-color molding material. The roof panel 12 is supported by appropriate support mechanisms disposed at both edges of the opening 11 in the vehicle width direction. For example, the roof panel 12 is rotated by using the front end as a fulcrum or moved in the front-rear direction. To open / close (open or close) the opening 11.

  The roof panel 12 has a substantially rectangular main body portion 21 made of a resin permeable material M1 that spreads along the opening portion 11, and the center portion 21 of the main body portion 21 is closer to the center O than the peripheral edge portion 21a. It has a substantially square annular mounting portion 22 made of a resin-impermeable material M2 laminated below the entire circumference. Accordingly, the main body portion 21 extends over the entire design surface, and the substantially square annular peripheral portion 21a that is on the outer peripheral side of the attachment portion 22 has a single-layer structure including only the transmissive material M1. Note that a hard coat for improving the surface hardness and the like is applied to the vehicle outer surface of the main body 21 (transmitting material M1).

  As the transmissive material M1, for example, polycarbonate (polycarbonate) is used, and as the non-permeable material M2, for example, a mixture of polycarbonate PET and carbon black is used. The thickness of the mounting portion 22 is set to be 1.5 to 2 [mm], respectively, so that the thickness of the entire roof panel 12 is 4 to 5 [mm]. For example, the thickness of the attachment portion 22 is set to about half of the thickness of the entire roof panel 12.

  As shown in FIG. 2, a substantially square annular molding groove 23 is formed in the main body portion 21 in accordance with the arrangement of the attachment portion 22. As schematically shown in FIG. 3, the bottom surface (upper surface in FIG. 3) of the molding groove 23 is juxtaposed in a straight line connecting the peripheral edge portion 21a and the center O, and has a cross section substantially in the vehicle height direction. Main body side uneven portions 24 are formed as a plurality of uneven portions that are uneven in a trapezoidal shape. That is, these main body side uneven portions 24 form a multiple substantially square ring centering on the center O as a whole.

  The mounting portion 22 is filled in the molding groove 23 of the main body portion 21. Therefore, the main body portion 21 and the attachment portion 22 form a substantially flush surface at the boundary position between them. The upper surface of the mounting portion 22 opposite to the main body side uneven portion 24 is a plurality of uneven portions that are uneven in a substantially trapezoidal cross section in the vehicle height direction so as to alternate with the main body side uneven portion 24. A mounting portion side uneven portion 25 is formed. These attaching portion side uneven portions 25 are formed in accordance with the outer shape of the main body side uneven portion 24 at the time of two-color molding, and are for increasing the contact area of the joint surfaces of the main body portion 21 and the attaching portion 22. is there. Needless to say, the main body side uneven portions 24 also form a multiple substantially square ring centered on the center O as a whole.

  In addition, a plurality of concavo-convex portions that are arranged side by side in a straight line connecting the peripheral edge portion 21a and the center O on the lower surface separated from the main body side concavo-convex portion 24 of the mounting portion 22 and are concavo-convex in a substantially trapezoidal cross section in the vehicle height direction. As shown in FIG. These adhesion-side concavo-convex parts 26 are parallel to the plate thickness direction of the roof panel 12 so as to overlap the plurality of main-body-part-side concavo-convex parts 24, that is, the same shape as the joint surfaces of the main body part 21 and the attachment part 22. It is molded to become.

  As shown in FIG. 2, the lower surface of the attachment portion 22 is fixed to a reinforcing member 32 as another member by, for example, a urethane resin adhesive 31. The reinforcing member 32 has a substantially rectangular frame shape extending over the entire circumference of the mounting portion 22, and reinforces the peripheral portion of the roof panel 12 and forms a connecting portion with the above-described support mechanism. That is, the attachment part 22 itself does not secure strength, but is a part that is provided with impermeableness and used for adhesion. The peripheral portion of the reinforcing member 32 protrudes more outward than the peripheral portion (peripheral portion 21a) of the roof panel 12, and a substantially square annular weather strip 33 made of resin or rubber is fitted over the entire periphery. Has been. The weather strip 33 elastically contacts the peripheral edge portion of the roof panel 12 and the opening portion 11 respectively, thereby closing the gap therebetween in a liquid-tight manner.

Next, the operation of this embodiment will be described.
In the present embodiment, the attachment portion 22 fixed to the reinforcing member 32 by the adhesive 31 is the impermeable material M2, so that the influence of external light on the adhesive 31 is reduced. Further, the attachment portion 22 is laminated below the main body portion 21 on the center O side of the peripheral edge portion 21a of the main body portion 21 so that the peripheral edge portion 21a (that is, the peripheral edge portion of the roof panel 12) itself is only the transmission material M1. 1 layer structure. Therefore, the peripheral edge of the roof panel 12 is formed only by the peripheral edge of the transmission material M1 (main body part 21), and the outer shape accuracy of the peripheral edge of the roof panel 12 is determined by the mold related to the molding.

Next, the manufacturing method of this embodiment is demonstrated.
As schematically shown in FIGS. 4A and 4B, a mold 40 for molding the roof panel 12 includes a first mold 41 for mainly molding the main body portion 21 and a mounting portion 22 (main body). And a second mold 42 for molding the bottom surface of the molding groove 23 of the portion 21 and the lower surface of the mounting portion 22. That is, the first cavity surface 43 formed on the first mold 41 forms the upper molding surface 43a for molding the entire upper surface of the main body 21 (roof panel 12) and the peripheral portion 21a of the main body 21. A peripheral molding surface 43b for forming the lower surface and a lower molding surface 43c for molding the lower surface on the center O side of the molding groove 23 of the main body 21. On the other hand, as shown in FIG. 4A, the second cavity surface 44 formed in the second mold 42 has a molding groove 23 (a plurality of main body side uneven portions) of the main body portion 21 at the initial stage of two-color molding. 24, etc., and as shown in FIG. 4B, in the next stage of the two-color molding, a two-color molding surface 44a for molding the lower surface of the mounting portion 22 (a plurality of bonding side uneven portions 26, etc.) is provided. . Therefore, the second cavity surface 44 of the second mold 42 has a plurality of forming uneven portions 45 that are unevenly formed so as to alternate with the outer shapes of the main body side uneven portion 24 and the adhesion side uneven portion 26. Is formed.

  Then, as shown in FIG. 4A, by injecting the transmitting material M1 into the cavity C1 formed by the first and second molds 41 and 42, the main body 21 as shown in FIG. 4B. Is formed. Subsequently, the second mold 42 is moved relative to the first mold 41 in the plate thickness direction (downward in the drawing) of the main body portion 21 by the thickness of the mounting portion 22. In this state, the mounting portion 22 is molded by injecting the impermeable material M2 into the cavity C2 formed by the molding groove 23 of the main body 21 and the second mold 42. As described above, the roof panel 12 is manufactured by two-color molding.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In this embodiment, since the attachment part 22 fixed to the reinforcing member 32 by the adhesive 31 is the non-permeable material M2, the influence of external light on the adhesive 31 can be alleviated and durability is improved. Can be improved. Moreover, the peripheral part of the roof panel 12 can be shape | molded only by the peripheral part 21a of the permeation | transmission material M1 (main-body part 21), and the external shape precision of the peripheral part of the roof panel 12 is the 1st metal mold | die 41 (peripheral shaping | molding surface 43b). Therefore, the number of manufacturing steps can be reduced because the post-process for terminal processing becomes unnecessary. And manufacturing cost can be reduced.

  (2) In the present embodiment, the shape of the joint surface of the main body portion 21 and the attachment portion 22 is the same as the shape of the lower surface of the attachment portion 22. Therefore, at the time of two-color molding of the main body portion 21 and the attachment portion 22 (the transmissive material M1 and the non-permeable material M2), the lower surface (that is, the joining surface) of the main body portion 21 is formed by the second mold 42 (two-color molding surface 44a). After molding, if the second mold 42 is shifted, the lower surface of the mounting portion 22 can also be molded, so that the number of necessary molds can be reduced. In addition, manufacturing costs and component costs can be reduced.

  (3) In the present embodiment, the contact area is increased by forming the uneven portions (the main body portion side uneven portion 24 and the attachment portion side uneven portion 25) on the joint surface between the main body portion 21 and the attachment portion 22. Therefore, the bonding strength of the main body portion 21 and the attachment portion 22 by two-color molding can be improved. Moreover, since the uneven part (adhesion side uneven part 26) is formed in the lower surface of the attachment part 22, the joint strength of the attachment part 22 and the adhesive agent 31 can be improved by the part which a contact area increases.

(4) In the present embodiment, for example, the reinforcing member 32 can prevent the peripheral edge portion of the roof panel 12 from being deformed by an upward suction force generated when the vehicle travels at a high speed.
(5) In this embodiment, when the thickness of the entire roof panel 12 is 4 to 5 [mm], for example, replacement from a general-purpose roof panel made of glass can be easily performed. On the other hand, when the thickness of the attachment portion 22 is 1.5 to 2 [mm], molding by two-color molding can be easily performed.

(6) In this embodiment, since the attachment part 22 is polycarbonate PET, the tolerance with respect to the solvent etc. (chemical | medical agent) of the adhesive agent 31 can be improved compared with a polycarbonate, for example.
(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIG. In addition, since 2nd Embodiment is a structure which only changed the junction structure of the main-body part and attachment part of 1st Embodiment, the detailed description is abbreviate | omitted about the same part.

  The roof panel 55 of the present embodiment is also formed in a substantially square shape with a two-color molding material, and has a substantially rectangular main body portion 56 made of a transmission material M1 extending along the opening portion 11, and the main body. There is a substantially square annular mounting portion 57 made of an impermeable material M2 laminated below the entire circumference of the main body portion 56 on the center O side (the left side in the drawing) of the peripheral portion 56a of the portion 56.

  That is, the main body portion 56 is formed with a substantially square annular forming groove 58 in accordance with the arrangement of the attachment portion 57. And the inclined surface 58a which inclines so that it goes to the peripheral part 56a side may be formed in the end surface by the side of the peripheral part 56a of the shaping | molding groove 58, and the end surface by the side of the center O of the shaping | molding groove 58 The inclined surface 58b is formed so as to be inclined downward toward the center O side. That is, the molding groove 58 is formed in a substantially trapezoidal groove shape that is expanded downward.

  The attachment portion 57 is filled in the molding groove 58 of the main body portion 56. Accordingly, inclined surfaces 57a and 57b that are inclined in accordance with them are formed on the upper surface of the mounting portion 57 that faces the inclined surfaces 58a and 58b, respectively. These inclined surfaces 57a and 57b are formed in accordance with the outer shape of the inclined surfaces 58a and 58b of the main body 56 during two-color molding.

  Further, the attachment portion 57 forms a protruding portion 59 by causing the end portion on the peripheral edge portion 56a side and the end portion on the center O side to protrude from the molding groove 58, respectively. However, the protruding portion 59 on the peripheral edge 56a side is retracted from the peripheral edge of the main body 56 (roof panel 55). In other words, the peripheral edge portion 56 a of the main body portion 56 is a portion closer to the peripheral edge side of the roof panel 55 than the protruding portion 59.

  The lower surface separated from the molding groove 58 of the mounting portion 57 including both projecting portions 59 is overlapped with the lower surface of the main body portion 56 by parallel translation in the plate thickness direction of the roof panel 55, that is, the main body portion 56 and the mounting portion 57. It is molded so as to be the same as the shape of the joint surface. Accordingly, the attachment portion 57 protrudes below the lower surface (the bottom surface of the transmission material M1) of the main body portion 56 at both protrusion portions 59 (the end portion on the peripheral edge portion 56a side and the end portion on the center O side). This is to prevent the hard coat applied to the vehicle outer surface of the main body portion 56 (transmitting material M1) from entering the attachment portion 57.

  The lower surface of the attachment portion 57 is fixed to the reinforcing member 32 with the adhesive 31. That is, the mounting portion 57 of the present embodiment itself does not secure the strength, but is a portion that is used for adhesion with an impermeable property to the last.

As described above in detail, according to the present embodiment, the following effects can be obtained in addition to the effects (1), (2), (4) to (6) in the first embodiment.
(1) In this embodiment, the end portions of the joint surfaces of the main body portion 56 and the attachment portion 57 are brought into contact with each other by being inclined by the inclined surfaces 58a and 58b and the inclined surfaces 57a and 57b. Thereby, when shape | molding the impermeable material M2 (2nd color), the stress added to the permeable material M1 can be reduced.

  (2) In the present embodiment, the projecting portions 59 projecting downward from the lower surface of the main body portion 56 (the bottom surface of the transmission material M1) are formed at both ends of the attachment portion 57, respectively. Thereby, it is possible to prevent the hard coat applied to the vehicle outer surface of the main body portion 56 (transmitting material M1) from entering the attachment portion 57. Therefore, it can suppress that a hard coat adheres to the adhesion surface which applies adhesive 31 of attachment part 57, and adhesion of this adhesive 31 is inhibited.

In addition, you may change the said embodiment as follows.
As shown in FIG. 6, the roof panel 50 may be a roof panel 50 in which uneven portions are not formed on the joint surface between the main body 51 and the mounting portion 52 and the lower surface of the mounting portion 52.

-In the said 2nd Embodiment, you may provide an uneven | corrugated | grooved part (24-26) according to the said 1st Embodiment.
In each of the above embodiments, the peripheral edge of the roof panel 12, 50, 55 may not be completely formed only by the peripheral edge of the transmission material M1 (main body parts 21, 51, 56). For example, the side gate generated in the flow path when the impermeable material M2 is injected during two-color molding may remain, or the side gate or the like may be removed after the two-color molding.

  In each of the above embodiments, the shape of the joint surface of the main body portions 21, 51, 56 and the attachment portions 22, 52, 57 is the same as the shape of the lower surface of the attachment portions 22, 52, 57 at the position of the side gate, for example. It does not have to be.

In each of the above embodiments, the adhesion target in the attachment portions 22, 52, 57 may be an appropriate bracket (panel bracket), for example.
In each of the above embodiments, the roof panels 12, 50, and 55 may be fixed panels that only close the opening 11.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) In the roof panel according to any one of claims 1 to 5,
The said other member is a reinforcement member for reinforcing the peripheral part of the said roof panel, The roof panel characterized by the above-mentioned. According to this configuration, for example, the reinforcing member can prevent the peripheral edge portion of the roof panel from being deformed by an upward suction force generated when the vehicle travels at a high speed.

(B) In the roof panel according to any one of claims 1 to 5 and (a) above,
The roof panel is characterized in that a thickness of the entire roof panel is 5 mm or less, and a thickness of the mounting portion is 1.5 to 2 mm. According to this configuration, since the thickness of the entire roof panel is 5 mm, it can be easily replaced with, for example, a general-purpose roof panel made of glass. On the other hand, when the thickness of the mounting portion is 1.5 to 2 mm, molding by two-color molding can be easily performed.

  O ... center, M1 ... permeable material, M2 ... non-permeable material, 10 ... vehicle roof (roof), 11 ... opening, 12, 50, 55 ... roof panel, 21, 51, 56 ... main body, 21a, 56a ... peripheral edge part 22, 52, 57 ... attachment part, 23, 58 ... molding groove, 24 ... main body part side uneven part (uneven part), 25 ... attachment part side uneven part (uneven part), 26 ... adhesion side uneven part (Concavities and convexities), 31 ... Adhesive, 32 ... Reinforcing members (other members) 57a, 57b ... Inclined surfaces, 58a, 58b ... Inclined surfaces, 59 ... Protrusions.

Claims (5)

In a roof panel that consists of a two-color molded material of a resin permeable material and an impermeable material, and closes an opening formed in the roof of the vehicle,
A main body made of a permeation material that extends along the entire opening;
And a mounting portion made of an impermeable material that is laminated below the entire periphery of the main body portion on the center side of the peripheral portion of the main body portion and fixed to another member by an adhesive. Roof panel to be used. The roof panel according to claim 1,
The shape of the joint surface of the main body and the mounting portion is the same as the shape of the lower surface of the mounting portion. The roof panel according to claim 2,
An uneven portion is formed on a joint surface between the main body portion and the attachment portion and a lower surface of the attachment portion. In the roof panel as described in any one of Claims 1-3,
The roof panel characterized in that an end portion on the peripheral edge side and an end portion on the center side of the joint surface between the main body portion and the attachment portion are inclined. In the roof panel as described in any one of Claims 1-4,
A roof panel, wherein projecting portions projecting downward from a lower surface of the main body portion are respectively formed at an end portion on the peripheral edge side and an end portion on the center side of the attachment portion.