JP2019069687A - Joint structure of vehicular trough - Google Patents

Abstract

To provide a joint structure of a vehicular trough, capable of reducing weight of a vehicle by making it possible to join an iron-made body and an aluminum alloy-made side member outer.SOLUTION: A joint structure of a vehicular trough 10 includes: the vehicular trough 10 formed by joining an iron-made first trough body 20 and an aluminum alloy-made second trough body 30 with a rivet; a spot welded part formed by spot-welding the first trough body 20 and a peripheral edge constituting a luggage compartment opening of an iron-made body; and a laser welded part L formed by laser-welding the second trough body 30 and an aluminum alloy-made side member outer 16.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a joint structure of a vehicle roof.

  Damper stay where the outer edge of the side member outer, which curves along the upper corner of the back door opening, is a load input source, in order to suppress the opening of the joint between the outer edge of the side member outer and the toroof. A body structure of a back door opening that is shaped to be equidistant from the outer periphery of the bracket has been proposed in the past (see, for example, Patent Document 1).

JP, 2009-234417, A

  By the way, in recent years, in order to reduce the weight of the vehicle, the side member outer may be made of aluminum alloy. However, if the side member outer is made of an aluminum alloy, it can not be joined by welding to an iron body, for example, an iron toroof. Therefore, in this case, the side member outer and the toroof are joined by, for example, rivets, but when they are joined by the rivet, the design surface of the toroof may be distorted, or depending on the part, the riveting machine may not enter There is something to do.

  In addition, when the toroof is made of aluminum alloy in order to be able to join with the side member outer made of aluminum alloy, when the toroof is joined to the iron body, that is, the peripheral portion constituting the back door opening, For example, it will join by a rivet. However, in this case, the width of the peripheral portion needs to be increased in order to secure the portion to be riveted, and the back door opening may be narrowed.

  Therefore, an object of the present invention is to obtain a joined structure of a vehicle toroof which enables joining of an iron body and an aluminum alloy side member outer, thereby reducing the weight of the vehicle.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a joint structure for a vehicle toroof according to the present invention, in which an iron first toroof main body and an aluminum alloy second toroof main body are joined by rivets. A vehicle-use toe roof, a spot-welded portion formed by spot welding of the first toe-roof main body and a peripheral portion constituting an opening of the iron-made body compartment, a second-like toroof main body and an aluminum alloy side member outer And a laser welded portion formed by laser welding.

  According to the first aspect of the present invention, the first roof of the iron main body and the second roof of the aluminum alloy are joined by the rivets to constitute a vehicle roof. Then, the first toe roof main body is joined by spot welding to the peripheral edge constituting the luggage compartment opening of the iron body, and the second toe roof main body is joined to the aluminum alloy side member outer by laser welding. That is, an iron body and an aluminum alloy side member outer are joined via a vehicle roof. Thus, the weight of the vehicle can be reduced.

  As described above, according to the present invention, it is possible to join an iron body and an aluminum alloy side member outer through a vehicle roof, and to reduce the weight of the vehicle.

It is a perspective view which shows the body made of iron which comprises a vehicle body, and the side member outer made of aluminum alloy. 1 is a perspective view showing a vehicle roof according to an embodiment of the present invention. It is a disassembled perspective view which shows the toroof for vehicles which concerns on this embodiment. FIG. 3 is a cross-sectional view taken along the line XX in FIG. 2 when the vehicle roof according to the embodiment is attached to a vehicle body. It is the YY sectional view taken on the line in FIG. 2 when the vehicle toro which concerns on this embodiment is attached to a vehicle body. It is a perspective view which shows the state which joined the vehicle toro concerning this embodiment to the side member outer.

  Hereinafter, embodiments according to the present invention will be described in detail based on the drawings. In addition, for convenience of explanation, arrow UP suitably shown in each figure makes vehicle up, arrow FR makes vehicle forward, and arrow RH makes vehicle right. Therefore, in the following description, when vertical and reverse, front and rear, and left and right directions are described without special mention, it indicates the vertical direction of the vehicle, front and rear, vehicle left and right (left and right) Do.

  As shown in FIG. 1, in order to reduce the weight of the vehicle 12, an aluminum alloy side member outer member (hereinafter referred to as a “Symen outer”), which also constitutes the vehicle 12, is provided on the iron body (vehicle body) 14 that constitutes the vehicle 12. ) 16 may be joined. Here, the aluminum outer seal 16 can not be joined to the iron body 14 by welding.

  Therefore, the vehicle toroof (hereinafter simply referred to as "toroof") 10 according to the present embodiment, which connects the body 14 and the simen outer 16 by the peripheral portion 15 (see FIGS. 4 and 5) constituting the luggage compartment opening 18, It is configured as follows. In addition, the toroof 10 is formed in left-right symmetrical shape, and it takes the toroof 10 arrange | positioned on the right side of the vehicle 12 here as an example, and demonstrates it.

  As shown in FIGS. 2 and 3, in the toroof 10 according to the present embodiment, a plurality of (for example, nine) rivets 40 are provided as the first toroof main body 20 made of iron and the second toroof main body 30 made of aluminum alloy. It is comprised by mutually joining by (refer FIG. 4).

  The first toroof main body 20 is joined by spot welding to the peripheral edge portion 15 constituting the loading space opening 18 of the body 14 (hereinafter, the spot-welded portion is referred to as “spot welding portion S” Yes: see Figure 4 and Figure 5). Then, the second toroof main body 30 is joined by laser welding to the vehicle width direction inner end 17 of the outer rim 16 (hereinafter, the portion welded by laser is referred to as “laser welded portion L”: See Figure 6).

  If it demonstrates in detail, as FIG. 2, FIG. 3 shows, the 1st toroof main body 20 is a vehicle width direction inner peripheral part arrange | positioned at the load-chamber opening 18 side (body 14 side) (following "inside peripheral part ) And a vehicle-width-direction outer peripheral edge (hereinafter referred to as an “outer outer peripheral edge”) 24 disposed on the side of the rear outer 16.

  The inner peripheral edge portion 22 is formed in a shape along the peripheral edge portion 15 in a plan view, and is superimposed on the peripheral edge portion 15 from the outer side in the vehicle width direction and spot welded (a spot welded portion S is formed) It has become. A weather strip 44 is attached to the inner peripheral edge 22 and the peripheral edge 15 which are superimposed on each other (see FIGS. 4 and 5).

  The outer peripheral edge portion 24 is formed in a substantially wave shape in a plan view, and a plurality (for example, three) of projecting portions 25 projecting in a substantially semicircular shape in a plan view to the outer side in the vehicle width direction by the wave shape The joint portion J is joined by the second troof main body 30 and the rivet 40. In the middle of the outer peripheral edge portion 24 in the longitudinal direction, a grip portion 27 used for supplying the first toe roof main body 20 is integrally formed so as to protrude outward in the vehicle width direction, and the grip portion A circular through hole 27A is formed in a portion (hereinafter referred to as a "base") serving as a root of 27.

  In the vicinity of one end (front end) and the other end (rear end) of the outer peripheral edge 24 in the longitudinal direction, mounting portions 26 and 28 projecting outward in the vehicle width direction are integrally formed. Circular mounting holes 26A, 28A are respectively formed in the mounting portions 26, 28, and can be mounted to the body 14 by bolts or the like. In addition, a circular through hole 28B is formed in a portion (hereinafter referred to as a "base") which is a base of the attachment portion 28 on the other end side in the longitudinal direction.

  Incidentally, both sides in the longitudinal direction of the through hole 27A in the base portion of the grip portion 27 and also in the longitudinal direction of the through hole 28B in the base portion of the mounting portion 28 It is done. Further, an extension portion 29 is formed on the other end side in the longitudinal direction than the attachment portion 28 of the first toroid body 20, and the extension portion 29 is also joined with the second toroid body 30 by the rivet 40 It has part J.

  On the other hand, the second toroof main body 30 is joined to the lower surface of the outer peripheral edge portion 24 in the first toroof main body 20, and is formed in an elongated substantially flat plate shape along the longitudinal direction of the outer peripheral edge 24 There is. A plurality of (for example, 6) convex portions 32 (convex portions formed by recessing the lower surface upward) having a substantially semicircular shape in plan view at predetermined intervals in the longitudinal direction of the second toroof main body 30 ) Are formed.

  In addition, in the second toroof main body 30, two convex portions 34 (convex portions formed by recessing the lower surface upward) having a circular shape in plan view are provided one by one between the predetermined convex portions 32. Each is formed. Each convex portion 34 is exposed (projected) from each through hole 27A, 28B of the outer peripheral edge 24 when the second toroof main body 30 is superimposed on the lower surface of the outer peripheral edge 24 in the first toroof main body 20. The outer diameter of each protrusion 34 is formed to be slightly smaller than the inner diameter of each through hole 27A, 28B.

  Then, the protruding portion 25 of the outer peripheral edge portion 24 of the first toe roof main body 20, the base portion of the gripping portion 27 and the base portion of the mounting portion 28 are disposed between the protruding portions 32 and on both sides of each protruding portion 34. It has become. That is, between the convex portions 32 in the second toroid body 30 and both sides of the convex portions 34 are joint portions J joined with the first toroid body 20 by the rivets 40, respectively.

  Furthermore, in the second toroof main body 30, reference portions 36, 38 projecting outward in the vehicle width direction are integrally formed at predetermined intervals in the longitudinal direction. Circular reference holes 36A and 38A are respectively formed in the reference portions 36 and 38, and a pair of positioning pins (not shown) provided on the spacer outer 16 are respectively formed in the reference holes 36A and 38A. It is supposed to be inserted. Thereby, the toroof 10 is positioned with respect to the dimension outer 16.

  In the second toroof main body 30, the reference portion 36 on one longitudinal end (front end) side is formed at a portion corresponding to the third projection 32A, counting from the longitudinal one end. The reference portion 38 on the other end (rear end) side in the longitudinal direction is formed at a portion corresponding to the first convex portion 32B, counting from the other end in the longitudinal direction.

  Further, when the toroof 10 is positioned with respect to the side outer 16, the inward end 17 of the side outer 16 in the vehicle width direction is relatively projected to the upper surface of the first toroof main body 20. The antirust seal member 42 (see FIGS. 4 and 5) is applied between the side edge 17A at the vehicle width direction inner end 17 of the side member outer 16 and the upper surface of the first toroof main body 20. It has become so.

  Further, an extending portion 39 is formed on the other end side in the longitudinal direction with respect to the convex portion 32B (reference portion 38) of the second toroof main body 30, and the second toe roof main body 30 is The grip portion 37 used for supplying the first roof body 20 is integrally formed so as to protrude outward in the vehicle width direction.

  The extension 39 has a joint portion J joined by the rivet 40 to the extension 29 of the first troof main body 20. That is, the joints J joining the first toe roof main body 20 and the second toroof main body 30 including the joints J at the extension portions 29 and 39 are arranged in a line along the longitudinal direction of the second toroof main body 30 It is formed as.

  Next, the operation (the joint structure of the toroof 10) of the toroof 10 according to the present embodiment configured as described above will be described.

  As shown in FIG. 2 and FIG. 3, the first roof 20 and the second roof 30 are joined by the rivets 40 (see FIG. 4) to constitute the roof 10. Specifically, the upper surface of the second toroid body 30 is superimposed on the lower surface of the outer peripheral edge portion 24 of the first toroid body 20.

  As a result, between the protrusions 32 of the second toroid body 30 and on both sides of the protrusions 34, the protrusions 25 of the outer peripheral edge 24 of the first toroid body 20, the base of the grip 27, and the attachment 28 The bases are respectively disposed, and the extension 29 of the first troof main body 20 is disposed on the extension 39 of the second troof main body 30.

  Then, the protruding portion 25 of the outer peripheral edge portion 24 of the first toe roof main body 20, the base of the holding portion 27 and the base of the mounting portion 28 and the extending portion 29 are respectively joined to the second toe roof main body 30 by rivets 40. As a result, the joint portions J by the rivets 40 are formed in a line along the longitudinal direction of the second roof 30.

  Thus, when the toroof 10 is completed, as shown in FIGS. 4 and 5, the inner peripheral edge 22 of the first toroof main body 20 is overlapped with the peripheral edge 15 constituting the loading chamber opening 18 of the body 14 to perform spot welding. Bonded by That is, the spot welds S are formed on the inner peripheral edge 22 and the peripheral edge 15 which are superimposed on each other. Then, the weather strip 44 is attached to the inner peripheral edge 22 and the peripheral edge 15 which are superimposed on each other.

  Further, positioning pins provided on the side member outer 16 are inserted into the reference holes 36A and 38A in the respective reference portions 36 and 38, and the second roof body 30 (troof 10) is positioned with respect to the side member outer 16. Then, in this state, the upper surfaces of the convex portions 32 and the convex portions 34 of the second toroof main body 30 are superimposed on the lower surface of the inner end portion 17 of the vehicle outer portion 16 in the vehicle width direction. It is joined to the lower surface by laser welding.

  That is, as shown in FIG. 6, the laser welds L are formed on the convex portions 32 and the convex portions 34. Then, the laser welded portions L, along with the joint portions J by the rivets 40, are arranged in substantially one line along the longitudinal direction of the second toroof main body 30. Therefore, compared with the case where the laser welding portion L is formed relatively apart to the outer side in the vehicle width direction than the joint portion J, suppressing or preventing the toe roof 10 from protruding in the vehicle width direction inward It is possible to suppress or prevent the cargo compartment opening 18 from becoming narrow.

  In addition, since laser welding itself can be performed from the lower surface side (one side) of the second toroof main body 30, compared with the case where it joins with the rivet 40, it is a tool made to enter the upper surface side of the dimensioner outer 16 and the lower surface of the second toroof main body 30. Etc. are unnecessary and can be easily joined. In addition, since at least the rear upper portion of the aluminum alloy outer rim 16 can be joined to the iron body 14 through the toroof 10, weight reduction of the vehicle 12 can be realized.

  Furthermore, since the part to be joined to the axial outer 16 is the second roof main body 30 made of an aluminum alloy, the weight of the troof 10 is also reduced. Further, as shown in FIGS. 4 and 6, the joint portion J (the rivet 40) of the toroof 10 is disposed on the lower surface side of the inward end portion 17 of the vehicle outer 16 and therefore can not be seen from the outside. Therefore, even if the joint portion J is formed on the toroof 10, there is no problem that the appearance of the vehicle 12 is impaired.

  Further, since the vehicle width direction inner end 17 of the side member outer 16 relatively projects to the upper surface of the first toe roof main body 20, the side edge 17 A and the first toe roof main body at the vehicle width direction inner side end 17 of the side member outer 16. The sealer line according to the antirust seal member 42 (see FIGS. 4 and 5) applied between the upper surface of the seal 20 and the upper surface 20 is a single line along the edge 17A. Therefore, the anticorrosion performance between the side edge portion 17A at the vehicle width direction inner side end portion 17 of the side member outer 16 and the upper surface of the first toroof main body 20 can be improved.

  The joining structure of the toroof 10 according to the present embodiment has been described above based on the drawings, but the joining structure of the toroof 10 according to the present embodiment is not limited to the illustrated one, and the gist of the present invention is described. Design changes can be made as appropriate without departing from the scope of the invention. For example, the toroof 10 should just be comprised by the iron 1st toroof main body 20 and the 2nd toroof main body 30 made of aluminum alloy, and it is not limited to the shape of illustration.

  Further, the number of joints J by rivets 40 and the number of laser welds L by laser welding are not limited to the numbers shown, and the shape of toroof 10 (first toroof main body 20 and second toroof main body 30) It may be suitably changed according to.

10 toroof (toroof for vehicle)
14 body 15 rim 16 side outer (side member outer)
18 Loading chamber opening 20 1st main body 30 2nd main body 40 Rivet L Laser welded portion S spot welded portion

Claims (1)

A vehicle toroof in which an iron first toroof body and an aluminum alloy second toroof body are joined by rivets;
A spot welded portion formed by spot-welding the first toroof main body and a peripheral portion constituting a cargo compartment opening of the iron body;
A laser welded portion formed by laser welding the second toroof main body and an aluminum alloy side member outer member;
Joint structure of the car for the car equipped with