JP2017030392A - Vehicular panel outer peripheral portion joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an adhesive from bulging out from a heming portion of an outer panel.SOLUTION: An inner panel 10 is joined with an outer panel 20 through an adhesive 40, in a state of being wrapped by a heming portion 30. On an outer peripheral portion of the inner panel 10, a recessed portion 11 is provided, and a coating portion 13 on which the adhesive 40 is applied is provided. The recessed portion 11 is disposed between the coating portion 13 and an outer peripheral end of the inner panel. When the heming portion 30 is pressed, the adhesive 40 extends so as to flow into the inside of the recessed portion 11, between the coating portion 13 and an adhesive portion 22. While the adhesive portion 40 stays in the inside of the recessed portion 11, the inner panel 10 and the outer panel 20 are joined.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a structure for joining outer peripheral portions of a vehicle panel that joins an outer panel and an inner panel of a vehicle.

  Some panels constituting the exterior of a car body of an automobile include an outer panel that is the outermost part and an inner panel that is superimposed on the inner side of the outer panel. For example, side doors, back doors, bonnets, and the like include an outer panel and an inner panel.

  Such outer panel and inner panel may be joined by hemming. The hemming joining is a structure in which the outer peripheral portion of the outer panel is folded inward to provide a hemming portion, the outer peripheral portion of the inner panel is wrapped between the hemming portion and the main surface portion of the outer panel, and joined by an adhesive or the like.

  An example of a joining structure using hemming joining is disclosed in Patent Document 1, for example. In the hemming joint structure of this example, a recess serving as an adhesive reservoir is provided in the hemming portion of the door outer panel. In this structure, when the adhesive is applied to and bonded to the hemming portions of the door inner panel and the door outer panel, the adhesive in the concave portion stays, thereby preventing the adhesive from protruding from the hemming portion. .

JP 2012-218616 A

  However, when the adhesive is applied to the region from the end of the hemming portion of the door outer panel to the folded portion as in the above example, the adhesive is applied to the main surface portion of the outer panel facing the hemming portion. It is necessary to increase the application amount of the adhesive as compared with the above. Usually, since the viscosity of the adhesive is highly temperature-dependent, if the adhesives are applied and overlapped and the plates are pressed with the same force, a difference occurs in how the adhesive spreads in summer and winter. For this reason, for example, when the application amount of the adhesive is adjusted in winter and adhesion is performed in summer using this application amount, the adhesive may protrude from the end of the hemming portion of the door outer panel due to a decrease in viscosity.

  In addition, since the recessed part is provided in the hemming part of the door outer panel, the sharp shape of the folded end is pressed against the door inner panel during hemming press processing, and the main surface part of the door outer panel in contact with the door inner panel A convex deformation may be generated.

  The present invention has been made to solve the above-mentioned problems, and its purpose is to optimize the amount of adhesive applied when hemming the outer panel and the inner panel constituting the exterior of the vehicle body, and to change the temperature. It is an object of the present invention to provide a joint structure capable of reducing the influence when the adhesive viscosity is changed.

  In order to achieve the above object, in the outer peripheral joint structure for a vehicle panel according to the present invention, a hemming portion that is folded back to the vehicle interior side by a folded portion is provided on the outer peripheral portion of the outer panel constituting the outermost side of the vehicle. The outer peripheral part of the inner panel on the vehicle compartment side of the outer panel is joined to the outer panel via an adhesive in a state of being wrapped by the hemming part. In the outer peripheral joint structure of the vehicle panel, the outer surface of the outer periphery of the inner panel is provided with a concave portion recessed toward the inner side of the vehicle interior and an application portion to which the adhesive is applied, The concave portion is disposed between the application portion and an outer peripheral end of the inner panel, and the adhesive is a vehicle of the outer panel facing the application portion in a state where the hemming portion is pressed. The outer panel and the inner panel are joined in a state that extends between the interior side surface and the application portion to the inside of the recess, and the adhesive remains inside the recess.

  Moreover, in the one aspect | mode of the outer peripheral part joining structure of the panel for vehicles which concerns on this invention, the bending part bent by the vehicle interior side is provided between the said folding | turning part and the outer peripheral end of the said hemming part. A flat surface is formed between the bent portion and the outer peripheral end of the hemming portion.

  Moreover, in the one aspect | mode of the outer peripheral part joining structure of the panel for vehicles which concerns on this invention, the said adhesive agent is not filled between the outer peripheral end of the said inner panel wrapped in the said hemming part, and the said folding | turning part. An outer peripheral end space is formed.

  According to the present invention, it is possible to reduce the amount of adhesive applied and to reduce the influence of adhesive viscosity change due to the difference in outside air temperature during hemming press processing, and as a result, it is possible to suppress the adhesive from protruding from the hemming portion. Can do.

  Moreover, according to one aspect of the present invention, it is possible to prevent convex deformation from occurring on the outermost side of the outer panel during hemming press processing.

  Further, according to one aspect of the present invention, it is possible to easily perform an operation of fitting the inner panel into the hemming portion and superimposing the outer panel on the outer panel before the hemming press process.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic front view of the vehicle door provided with the outer peripheral part junction structure of the vehicle panel which concerns on this invention, and the figure seen from the door inner panel side. It is sectional drawing which shows the periphery of the hemming part of the door for vehicles of Drawing 1, (a) shows the state before hemming press processing, and (b) shows the state after hemming press processing. 2 shows a process of joining the door outer panel and the door inner panel of FIG. 2 by hemming press processing, (a) shows a state where the movable part is in contact with the hemming part, and (b) is more than (a). A state in which the pressing is advanced is shown. FIG. 3 shows a state in which pressing is advanced from the state of FIG. 3, where (a) shows a state after the hemming portion is almost folded back, and (b) shows a state where the hemming portion is pressed and joined.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an outer peripheral joint structure for a vehicle panel according to the present invention will be described with reference to the drawings (FIGS. 1 to 4).

  The example of the side door arrange | positioned at the vehicle side part demonstrates the outer peripheral part joining structure of the vehicle panel of this embodiment. The side door has a door outer panel 20 and a door inner panel 10, and is joined at the outer peripheral portion in a state where they are overlapped as shown in FIG. In this example, the outer peripheral part of these panels 10 and 20 is joined by hemming press processing. As shown by a square mark X in FIG. 1, the press positions for hemming breath processing are arranged at intervals in the circumferential direction along the outer periphery of the panels 10 and 20. Hereinafter, the part which the door outer panel 20 and the door inner panel 10 join is demonstrated.

  First, the door outer panel 20 will be described. The door outer panel 20 is a panel member that constitutes the outermost part of the side door. Here, the outermost part indicates the outermost part with respect to the vehicle compartment. The outer peripheral portion of the door outer panel 20 is folded back to the vehicle interior side so as to wrap around the outer peripheral portion of the door inner panel 10 (FIG. 2).

  As shown in FIG. 2, the door outer panel 20 includes a main surface portion 21 and a hemming portion 30. The main surface portion 21 is a portion on the outer side of the vehicle compartment with respect to the folded portion 31a where the outer peripheral portion is folded, and constitutes an outer portion of the side door. In the present embodiment, the hemming portion 30 is a portion that is folded back inside the vehicle (upper side in FIG. 2) with the folded portion 31a as a boundary, and is a portion from the folded portion 31a to the panel end 33.

  An adhesion portion 22 to which the adhesive 40 adheres is provided on the outer peripheral side of the main surface portion 21 on the vehicle interior side, that is, on the vehicle interior side in the vicinity of the turned-up portion 31a. The adhesion part 22 is a part to which the adhesive 40 applied to the inner panel 10 adheres. The relationship with the adhesive 40 and the inner panel 10 will be described later. This adhesion part 22 serves as a joining area where the outer surface of the vehicle inner side of the outer peripheral part of the door inner panel 10 is joined. The joining will be described later.

  The hemming portion 30 is provided with a bent portion 31b between the panel end 33 and the folded portion 31a. Hereinafter, the folded portion 31a and the folded portion 31b will be described with reference to FIG. FIG. 2A shows the door outer panel 20 and the door inner panel 10 before hemming press processing.

  The hemming portion 30 of the door outer panel 20 before joining extends toward the vehicle interior side at approximately 90 degrees with respect to the main surface portion 21. That is, the folded portion 31 a is bent perpendicularly to the main surface portion 21 in the above direction. The hemming portion 30 is provided with a first flat portion 32a formed with a flat surface between the folded portion 31a and the bent portion 31b, and is flat between the bent portion 31b and the panel end 33. A second flat portion 32b having a smooth surface is provided.

  The bent part 31b is bent in the direction in which the folded part 31a opens on the opposite side to the folded part 31a. That is, in the state before the door outer panel 20 and the door inner panel 10 are joined, the panel end 33 that is the tip of the second flat portion 32 b of the hemming portion 30 is bent in a direction away from the main surface portion 21. Here, the bent portion 31b is bent at about 30 degrees with respect to the direction in which the first flat portion 32a of the hemming portion 30 extends (FIG. 2A). The 2nd flat part 32b from the bending part 31b to the panel end 33 turns into a press part pressed at the time of hemming press processing. The hemming press process will be described later.

  Next, the door inner panel 10 will be described. As shown in FIGS. 2A and 2B, the door inner panel 10 is a panel member that is disposed so as to overlap the vehicle interior side of the door outer panel 20. The vehicle interior side surface of the door inner panel 10 faces the vehicle interior side surface of the main surface portion 21 of the door outer panel 20 with a space therebetween.

  As shown in FIG. 2B, the outer peripheral portion of the door inner panel 10 is joined in a state of being wrapped by the outer peripheral portion of the main surface portion 21 and the hemming portion 30. That is, the outer peripheral portion of the main surface portion 21, the outer peripheral portion of the door inner panel 10, and the hemming portion 30 are joined in a three-layered state. In addition, the inner panel 10 of this example is bent toward the vehicle compartment side on the panel center side (left side in FIG. 2) of the application unit 13 and extends toward the panel center side. The portion extending toward the center of the panel is arranged with a space from the main surface portion 21 of the outer panel 20.

  As shown in FIG. 2A, the outer surface of the door inner panel 10 on the outer side of the vehicle cabin is provided with a recess 11 that is recessed toward the vehicle cabin, and an application portion 13 to which the adhesive 40 is applied. It has been. The recessed part 11 is arrange | positioned between the application part 13 and the outer peripheral end 14 of an inner panel. That is, the coating part 13 and the recessed part 11 are arranged in this order from the center of the panel toward the outer peripheral edge 14. In addition, the adhesion part 22 of the door outer panel 20 is arrange | positioned in the position facing the application part 13. As shown in FIG. Further, a flat surface is formed in the region from the edge of the recess 11 to the outer peripheral end 14 of the door inner panel 10. The vehicle interior side surface corresponding to the recess 11 has a convex shape 12.

  Here, a method of joining the door inner panel 10 to the door outer panel 20 by hemming press processing will be described. First, as shown in FIG. 2A, the outer peripheral portion of the door inner panel 10 is inserted between the hemming portion 30 and the main surface portion 21 of the door outer panel 20. At this time, the adhesive 40 is applied to the application portion 13 of the door inner panel 10. Further, the outer peripheral end 14 of the door inner panel 10 is disposed with a space from the hemming portion 30 of the door outer panel 20.

  Although a detailed description of the press machine is omitted, in this example, as shown in FIGS. 3 and 4, a movable portion 51 is disposed at a position facing the hemming portion 30, and the main surface portion 21 of the door outer panel 20. A receiving portion 52 is disposed outside the vehicle compartment. The movable part 51 presses the hemming part 30, and finally the receiving part 52 and the movable part 51 sandwich the hemming part 30, the door inner panel 10, and the main surface part 21 of the door outer panel 20 in a stacked state. Pressing.

  Next, the press state will be described with reference to FIGS. First, from the state shown in FIG. 2A, the movable portion 51 is brought into contact with the panel end 33 of the second flat portion 32b of the hemming portion 30 as shown in FIG. Press. At this time, the vehicle interior side surface of the first flat portion 32 a abuts on the convex shape 12 on the back side of the concave portion 11. The adhesive 40 also adheres to the attachment portion 22 of the door outer panel 20, and further extends between the application portion 13 and the attachment portion 22 so as to flow into the inside of the recess 11, and stays inside the recess 11. ing.

  Further, as shown in FIG. 3B, when the pressing is gradually advanced so that the movable portion 51 approaches the receiving portion 52, the first flat portion 32 a follows the convex shape 12 on the vehicle interior side of the concave portion 11. And deform. Even in this state, the adhesive 40 remains inside the recess 11.

  Further, as shown in FIG. 4A, when the pressing is gradually advanced so that the movable part 51 approaches the receiving part 52, the pressing surface of the movable part 51 is the vehicle of the second flat part 32 b of the hemming part 30. It will be in the state which comes into surface contact with an outdoor side surface, and will be in the state which presses the 2nd flat part 32b. At this time, the first flat portion 32 a covers the outer peripheral portion of the door inner panel 10 in a state of being deformed along the convex shape 12 on the back side of the concave portion 11, and the second flat portion 32 b is on the back side of the application portion 13. It faces in a state parallel to the flat part. Even in this state, the adhesive 40 remains inside the recess 11.

  Further, as shown in FIG. 4B, the pressing is gradually advanced so that the movable portion 51 approaches the receiving portion 52, and the door inner panel 10 and the door outer panel 20 are joined. Even in this state, the adhesive 40 remains inside the recess 11. Then, the movable part 51 and the receiving part 52 of a press machine are removed, it will be in the state of FIG.2 (b), and joining will be completed.

  When the door inner panel 10 is joined to the door outer panel 20, an outer peripheral end space 35 is formed between the outer peripheral end 14 of the door inner panel 10 and the folded portion 31 a of the door outer panel 20. . The outer peripheral end space 35 is a space defined by the vehicle interior side surface of the first flat portion 32 a of the hemming portion 30 and the vehicle interior side surface of the main surface portion 21 of the door outer panel 20. Even when the panels 10 and 20 are joined, the adhesive 40 remains in the recess 11, so that the outer peripheral edge space 35 is not filled with the adhesive 40.

  As can be understood from the above description, by using the joining structure of the present embodiment, it is possible to shorten the distance from the application part 13 serving as the adhesive application position to the concave part 11 having the adhesive reservoir shape. It is possible to reduce the coating amount of 40. As a result, it is possible to reduce the influence when the viscosity of the adhesive 40 changes due to a temperature change due to the season or the like.

  By setting the portion pressed by the movable portion 51 to the second flat portion 32b between the bent portion 31b of the hemming portion 30 and the panel end 33, the pressure on the hemming portion 30 can be applied equally. It becomes possible. As a result, convex deformation caused by local stress concentration on the panel surface can be prevented.

  If the bent portion 31b is not provided, a convex portion may be formed in the flat portion of the door inner panel 10 with which the second flat portion 32b abuts during hemming press processing. That is, when the bent portion 31b is not provided, at the time of pressing, the panel end 33 of the hemming portion 30 first strikes the flat portion of the door inner panel 10, and the door inner panel 10 is locally pressed. There is a possibility that a convex portion is formed on the outdoor side. The convex portion is transferred to the door outer panel 20 and may cause convex deformation.

  On the other hand, in the present embodiment, the bent portion 31b is provided, and the second flat portion 32b is provided between the bent portion 31b and the panel end 33, whereby the second flat portion 32b is used as a pressing portion. By making the surface contact, the local press as described above can be prevented. As a result, since the generation of the convex portion on the door inner panel 10 is suppressed, the generation of the convex deformation on the main surface portion 21 of the door outer panel 20 can be prevented. As a result, the shape after joining can be finished satisfactorily.

  Further, in the door inner panel 10, it is not necessary to fill the adhesive 40 near the outer peripheral end 14 rather than the recess 11 having the adhesive reservoir shape, and the door inner panel 10 may not be present, that is, The outer peripheral end space 35 can be provided, the door inner panel 10 can be made smaller than the door outer panel 20, and the amount of material used for the door inner panel 10 can be suppressed. Furthermore, it is possible to prevent the door inner panel 10 from being forcedly screwed in before the hemming press process, and the work of fitting the door inner panel 10 into the door outer panel 20 can be easily performed.

  The description of the above embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.

  In the present embodiment, the joining of the door outer panel 20 and the door inner panel 10 constituting the vehicle door is described, but the present invention is not limited to this. It is possible to apply the joining structure of the present embodiment to a structure in which a hemming portion is provided on the outer panel and joined to the inner panel.

DESCRIPTION OF SYMBOLS 10 Door inner panel 11 Concave part 12 Convex shape 13 Application | coating part 14 Outer peripheral edge 20 Door outer panel 21 Main surface part 22 Adhering part 30 Hemming part 31a Folding part 31b Bending part 32a 1st flat part 32b 2nd flat part 33 Panel edge 35 Outer periphery End space 40 Adhesive 51 Movable part 52 Receiving part

Claims (3)

On the outer peripheral part of the outer panel that constitutes the outermost side of the vehicle, a hemming part that is folded back to the vehicle interior side at the folding part is provided,
In the outer peripheral joint structure of the vehicle panel joined to the outer panel via an adhesive in a state where the outer peripheral part of the inner panel on the vehicle interior side of the outer panel is wrapped by the hemming part,
A concave portion that is recessed toward the vehicle interior side is provided on the outer surface of the outer periphery of the inner panel, and an application portion to which the adhesive is applied is provided. The concave portion includes the application portion and the inner portion. It is arranged between the outer peripheral edge of the panel,
In a state where the hemming part is pressed, the adhesive extends between the vehicle interior side surface of the outer panel facing the application part and the application part to the inside of the recess,
The outer peripheral joint structure of a vehicle panel, wherein the outer panel and the inner panel are joined in a state where the adhesive remains inside the recess. Between the folded portion and the outer peripheral end of the hemming portion, a bent portion that is bent toward the vehicle interior side is provided,
2. The outer peripheral joint structure for a vehicle panel according to claim 1, wherein a flat surface is formed between the bent portion and an outer peripheral end of the hemming portion.   The outer periphery end space which is not filled with the said adhesive agent is formed between the outer periphery end of the said inner panel wrapped in the said hemming part, and the said folding | turning part, The Claim 1 or Claim characterized by the above-mentioned. The outer peripheral part joining structure of the vehicle panel as described in 2.

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