JP4596319B2 - Car body rear structure - Google Patents

Description

  The present invention relates to a rear body structure of an automobile, and more particularly to a rear body structure for reinforcing a mounting portion of a striker that locks a back door (loading door) of an automobile, for example.

  There is a side-opening type back door as a luggage door of an automobile. FIG. 4 shows the rear structure of the vehicle body around the cargo compartment door striker portion of an automobile provided with this type of laterally opening type back door. As shown in FIG. 4, in the conventional vehicle body rear structure, a back door (loading compartment door) striker retainer 1 is attached to a striker reinforcing member 3 by a retainer case 2 and then joined to a back pillar panel 4. . A rear lamp mounting panel 5 is coupled to the back pillar panel 4 via a striker reinforcing member 3. In addition, the cross-sectional shape of the parts assembled in this way has a shape as shown in FIG. That is, as shown in FIG. 5, the edge 4a of the back pillar panel 4 and the edge 5a of the rear lamp mounting panel 5 are joined to each other with the edge 3a of the striker reinforcing member 3 interposed therebetween, and face this joint α. The back pillar panel 4 and the rear lamp mounting panel 5 are bent so that the side to be opened is concave in cross section and the space β is formed inside. Thus, when the vehicle body is assembled and delivered, the back pillar panel 4 and the rear lamp mounting panel 5 are transported as one part joined.

  On the other hand, when assembling the vehicle body, the back pillar panel 4 is coupled to the side inner panel 6 and the rear lamp mounting panel 5 is coupled to the side outer panel 7 as shown in FIG. The striker 9 for the back door 8 is attached to the back pillar panel 4 using the back door strike retainer 1, and the rear lamp 10 is attached to the rear lamp attachment panel 5. Further, a seal member 12 is attached to a flange 11 formed at a joint portion between the back pillar panel 4 and the side inner panel 6.

  However, in the conventional rear structure of the vehicle body as described above, since the component formed by integrating the back pillar panel 4 and the rear lamp mounting panel 5 has a sectional structure as shown in FIG. It is structurally weak against the forces in the directions indicated by A and B, that is, the force in the direction in which the open side portions of the space portion β are tilted so as to approach each other (direction in which the space portion β is narrowed), and when parts are delivered There is a risk of deformation due to bending (falling down) in the directions of arrows A and B (during transportation). Further, in the conventional rear structure of the vehicle body, when the back door is opened and closed after the vehicle is completed, a load is applied to the striker mounting surface (portion indicated by hatching in FIG. 6) 13 of the back pillar panel 4. , B is a structure that is weak against the force in the B direction, so that strength and rigidity may be a problem.

  The present invention has been made in view of the actual situation as described above. The purpose of the present invention is to improve the strength and rigidity of the striker mounting portion, and to bend and deform the component at the time of component delivery (during transportation). An object of the present invention is to provide a rear vehicle body structure that can be prevented.

In order to achieve the above-mentioned object, in the present invention, a door-facing vehicle body panel to which a striker is attached and an equipment component mounting panel to which an equipment component is attached are joined to each other, and the door-facing vehicle body panel and the equipment component mounting panel are joined together. The door-facing vehicle body panel and the fitting component mounting panel are bent so that the side facing the joint portion is open in a concave shape and a space portion is formed therein, and striker reinforcement is performed along the door-facing vehicle body panel. A rear part of the vehicle body provided with a member, and the striker and striker retainer are disposed between the door-facing vehicle body panel and the striker reinforcing member, and the striker is attached to the door-facing vehicle body panel at a location corresponding to the space portion In the structure, the door-facing vehicle body panel and the fitting corresponding to the open portion of the space portion Article mounting panel striker retainer reinforcing member that connects together the portions provided for, and the door facing the vehicle body panel, wherein the outfitting component mounting panel, wherein the the striker retainer reinforcing member to form a closed section portion, the striker retaining reinforcement member The door-facing vehicle body panel and the striker reinforcing member are disposed along the door-facing vehicle body panel and the striker reinforcing member so as to be sandwiched between the striker and the striker retainer .
Also, in the present invention, the portion extending between the door facing the vehicle body panel and the outfitting component mounting panel of said striker retaining reinforcement member, is bent in a direction away from the door facing the vehicle body panel and the striker reinforcement member A bent piece, and the fitting component mounting panel is set to be longer than the door-facing vehicle body panel at the open portion of the space and extends to the opposite side of the joint, and the striker retainer reinforcing member is bent. The one part is arranged in a state of being inclined from the door-facing vehicle body panel side to the extending direction side of the outfitting component mounting panel.
Further, in the present invention, the striker and the passage space are provided side by side facing the door thickness direction of the door-facing vehicle body panel, and the space portion is elongated in the door thickness direction and narrowed in the door surface direction in correspondence with them. Try to form.
In the present invention, the door-facing vehicle body panel, the outfitting component mounting panel, the striker reinforcing member, and the striker retainer reinforcing member are integrated by welding in a state of being overlapped around the space portion. I am doing so.
In the present invention, the shape of the door-facing vehicle body panel is a long shape extending along one peripheral edge of the door having a substantially rectangular outer shape, and the space portion is defined as the length of the door-facing vehicle body panel. It is formed so as to extend over half the length in the direction and overlap with the door constituting surface.
Further, in the present invention, the striker reinforcing member is formed so as to extend vertically up and down along the joining direction so as to overlap with the position where the door shut stopper is disposed, and the striker retainer reinforcing member is positioned near the upper and lower sides of the striker. Only to be provided.

The present invention described in claim 1 is provided with a striker retainer reinforcing member that connects the door-facing vehicle body panel and the fitting component mounting panel corresponding to the open portion of the space portion, and the door-facing vehicle body panel, the fitting component mounting panel, The closed section shape portion is formed by the striker retainer reinforcing member, the striker retainer reinforcing member is disposed along the door-facing vehicle body panel and the striker reinforcing member, and the striker and striker together with the door-facing vehicle body panel and the striker reinforcing member are arranged. Because it is sandwiched between the retainer and the striker retainer reinforcement member, the bending of the door-facing vehicle body panel and the fitting component mounting panel can be prevented and the strength and rigidity can be improved. As a result, the part shape (part accuracy) It is possible to maintain the good. Further, the striker retainer reinforcing member is disposed along the door-facing vehicle body panel and the striker reinforcing member, and is sandwiched between the striker and the striker retainer together with the door-facing vehicle body panel and the striker reinforcing member. Thus, with such an arrangement, the strength and rigidity can be increased with respect to the load applied from the door side via the striker.

According to the second aspect of the present invention, a portion extending between the door-facing vehicle body panel and the fitting component mounting panel of the striker retainer reinforcing member is bent in a direction away from the door-facing vehicle body panel and the striker reinforcing member. The fitting part mounting panel is set to be longer than the door-facing vehicle body panel at the open part of the space and extends to the opposite side of the joint, and the bent part of the striker retainer reinforcing member is opposed to the door. Since it is arranged in a state of being inclined from the body panel side to the extending direction side of the fitting component mounting panel, the vehicle side with respect to the acting direction of the load on the striker that coincides with the vehicle longitudinal direction Even the side body outside the part can be connected gently, ensuring sufficient strength and rigidity.

Further, the invention according to claim 3, provided side by side striker and passage space facing the door thickness direction of the door facing the vehicle body panel, longer and the surface of the door so as to correspond to their arrangement the space in the door thickness direction Since it is formed so as to be narrow in the direction, the length of the door-facing vehicle body panel in the door opening / closing direction is increased, so that sufficient strength and rigidity can be ensured. In addition, even if the component formed by assembling the door-facing vehicle body panel and the fitting component mounting panel is flat, it is possible to form a particularly large housing space for the fitting component.

According to a fourth aspect of the present invention, the door-facing vehicle body panel, the fitting component mounting panel, the striker reinforcing member, and the striker retainer reinforcing member are integrated by welding in a state where they are overlapped around the space portion. As a back pillar assembly (back pillar assembly part), high rigidity is obtained in a closed cross-section space even if it is transported after assembly, so it will not be deformed by some external force. High accuracy can be maintained until the vehicle body is completed.

According to the fifth aspect of the present invention, the shape of the door-facing vehicle body panel is a long shape extending along one peripheral edge of the door having a substantially rectangular outer shape, and the space portion is formed as a door-facing vehicle body. Since it is formed to extend over half the length in the longitudinal direction of the panel and overlap with the door component surface, the overall rigidity of the surface that supports the striker and matches the load direction Can be high. Moreover, since the said space part is flat in the width direction, the accommodation space of the fitting component can be enlarged outside the door periphery.

Further, the invention of claim 6, the striker reinforcement member is formed to extend longer vertically along the joint direction so as to overlap with the arrangement position of the door shut stopper, the striker retainer reinforcing member, the striker Since it is provided only in the position near the top and bottom, not only the striker but also the load from the shut stopper can be directly transmitted to the striker retainer reinforcing member. Furthermore, the support rigidity against vibration can be increased.

  Hereinafter, a vehicle body rear structure according to an embodiment of the present invention will be described with reference to FIGS. In FIG. 1 to FIG. 3, the same parts as those in FIG. 4 to FIG.

  FIG. 1 shows a vehicle body rear structure according to an embodiment of the present invention, which is a vehicle body rear structure of an automobile 20 including a laterally open back door (loading door) 8. Note that the rear structure of the vehicle body of the present embodiment is of a type provided with a housing space for a rear lamp (combination lamp) 10 on the outer side of the striker 9 disposed in the back door opening 21.

  As shown in FIG. 1, a back door opening 21 is provided in the rear part of the automobile 20, and a back (not shown) attached to the right side 22 of the back door opening 21 is used as a rotation center. A door (not shown in FIG. 1) is attached so as to be able to open sideways. A striker 9 is attached to the left side 23 of the back door opening 21, and a latch member (not shown) of the back door is locked to the striker 9. More specifically, the striker 9 includes the striker retainer 1 and the retainer case 2 on the back pillar panel 4 (a type of door-facing vehicle body panel) adjacent to the rear lamp mounting panel 5 (a type of fitting part mounting panel). It can be used together with the striker reinforcing member 3.

  Here, the reinforcing structure of the mounting portion of the striker 9 and the mounting portion of the rear lamp (combination lamp) 10 will be described as follows.

First, in the present embodiment, the rear lamp mounting panel 5 is configured as one component by welding the two constituent panels 5 ₁ and 5 ₂ (see FIGS. 2 and 3) to each other. Then, as shown in FIG. 3, the edge 4a of the back pillar panel 4 and the edge 5a of the rear lamp mounting panel 5 are joined to each other by spot welding or the like in a joined state, and the edges 4a and 5a are joined. The back pillar panel 4 and the rear lamp mounting panel 5 are bent so that the side facing the portion α is concave in cross section open and a space β is formed inside. The space portion β is an internal space of the back pillar assembly, and is a vertical wall-like structure portion having a predetermined thickness that extends in the longitudinal direction of the back pillar assembly and has a height in the longitudinal direction of the vehicle body. It is an internal space. The vicinity of the upper end of the vertical wall is connected so as to intersect on the surface extending from the window glass housing space of the side body, and the vicinity of the lower end of the vertical wall is near the lower edge of the back-back door opening 21, It is connected to the rear panel (not shown). An end edge 4 b on the inner side in the width direction of the back pillar panel 4 is coupled to the side inner panel 6, while an upper half portion of the end edge 4 a on the outer side in the width direction of the back pillar panel 4 is coupled to the side outer panel 7. At the same time (not shown), the lower half is coupled to the lamp mounting panel 5 (see FIG. 2). Further, the outer edge 5 b in the width direction outside of the rear lamp mounting panel 5 is coupled to the side outer panel 7.

  On the other hand, the striker reinforcing member 3 used in the present embodiment is a metal plate having a substantially rectangular shape in a side view with a section bent in a crank shape, and most of the surface is provided on the back pillar panel 4 as shown in FIG. It can be assembled in close contact.

Furthermore, in the vehicle body rear structure of the present embodiment, as shown in FIGS. 2 and 3, a striker that connects the back pillar panel 4 and the rear lamp mounting panel 5 portions M and N corresponding to the open portion of the space β is mutually connected. A retainer reinforcing member 25 is provided. Specifically, striker retainer reinforcing member 25 is disposed along the configuration panel 5 ₁ back pillar panel 4 and the rear lamp mounting panel 5, the back pillar panel 4 and the striker 9 and the striker retainer with the striker reinforcement member 3 1 while being fastened together in the sandwiched state between are joined welded at or configuration panel 5 ₁ of the rear lamp mounting panel 5. A portion extending between the back pillar panel 4 and the rear lamp mounting panel 5 of the striker retainer reinforcing member 25 is bent in a direction away from the back pillar panel 4 and the striker reinforcing member 3, and the back pillar panel 4. And the striker reinforcing member 3 is arranged as a bent piece 25a that is stretched between the reinforcing member 3 and the striker reinforcing member 3, and is configured to receive a relatively small tension and compression load. The striker retainer reinforcing member 25 is disposed at a height position equivalent to the center in the height direction of the mounting position of the rear lamp 10, and is disposed so as to locally support the vicinity of the middle of the vertically long space β. Has been.

In addition, the rear lamp mounting panel 5 is set longer than the back pillar panel 4 at the open portion of the space β and extends to the opposite side of the joint α, and the bent piece 25a of the striker retainer reinforcing member 25 is back. It arrange | positions in the state inclined from the pillar panel 4 side to the extension direction side of the rear lamp attachment panel 5. Thus, the back pillar panel 4, the configuration panel 5 ₁ of the rear lamp mounting panel 5, closed section portion R is composed of the striker retainer reinforcing member 25.

  Further, the flange 11 formed at the joint between the back pillar panel 4 and the side door inner panel 6 is covered with a seal member 12, and when the back door 8 is closed (when the door is closed), the back door 8 A part of the above-described seal member 12 is configured to come into contact with moderate elasticity. That is, the sealing member 12 is arranged so as to elastically contact the back door 8 to form a part of the sealing surface, and when the back door 8 is closed, it is covered with the door panel, glass, side body, and rear lamp. Therefore, the seal member 12 hardly constitutes the design surface (the seal member 12 is visible only when the back door 8 is opened). Thus, when the back door 8 is closed, the back pillar panel 4, the seal member 12, and the passage space S surrounded by the back door 8 (that is, the gutter structure portion extending in the vertical direction) are formed. It has become so. Therefore, the striker 9 and the passage space S are provided side by side facing the door thickness direction of the back pillar panel 4, and the space portion β is long in the thickness direction of the back door and corresponds to them, and the surface of the back door 8. Narrow in the direction. Rainwater, etc. on the roof is mainly discharged through the periphery of the back door, but is distributed from the upper edge to the left and right between the back door 8 (door inner panel) and the back pillar panel 4, and around both sides. It is configured to be discharged out of the vehicle from below by using it as a passage space such as a bag. The passage space S as a saddle is formed between the back door 8 and the back pillar panel 4 with a seal member interposed as described above, and is disposed on the inner side of the design surface of the vehicle body surface. Established.

  Further, the back pillar panel 4, the rear lamp mounting panel 5, the striker reinforcing member 3, and the striker retainer reinforcing member 25 are integrated by welding under a state of being overlapped around the space portion β. . Then, by using the striker retainer 1 and the retainer case 2 in a portion where the three panels of the back pillar panel 4, the striker reinforcing member 3, and the striker retainer reinforcing member 25 are in close contact with each other, the striker 9 is used. Is fastened and fixed to the back pillar panel 4.

  On the other hand, the shape of the back pillar panel 4 is a long shape extending along one peripheral edge of a door having a substantially rectangular outer shape, and the above-described space portion β is in the longitudinal direction of the back pillar panel 4. It extends over more than half the length and overlaps the door construction surface.

  In addition, the back pillar panel 4 has a door shut stopper 26 that functions as a load receiver when the back door 8 is closed and prevents vibration of the back door 8 in the closed state, as shown in FIG. It is attached to the lower part at a distance from 9. As the door shut stopper 26, for example, a metal guide piece, anti-vibration rubber, resin or the like is used. The striker reinforcing member 3 is formed to extend vertically up and down along the joining direction so as to overlap the position where the door shut stopper 26 is disposed, and the striker retainer reinforcing member 25 is located near the upper and lower sides of the striker 9. It is provided only at the position.

The rear lamp mounting panel 5 described above, the rear lamp 10 is mounted and fixed by fastening by bolts or the like, the rear lamp 10 wire harness (lead) is formed in the configuration panel 5 ₂ of the rear lamp mounting panel 5 opening 27 (see FIG. 3). In the vehicle body rear structure of the present embodiment, as the rear lamp 10 becomes larger and the shape thereof becomes complicated, the rear lamp mounting panel 5 corresponds to the enlargement and the complicated shape. In particular, the rear lamp 10 has a large sneaking into the side body of the lens surface for reasons of appearance, and accompanying this, the overhang into the internal space of the side body is increased. The recessed part (rear lamp accommodating recessed part) to be formed is configured to be large. In this case, the rear lamp mounting panel 5 described above is divided into constituent panels 5 ₁ and 5 ₂ in the vicinity of the bent portion along the space β, and is integrated with high rigidity by overlap welding W. The mounting position of the rear lamp 10 by bolts or the like to the rear lamp mounting panel 5 is an end portion in the longitudinal direction (vehicle vertical direction), is spaced apart from the upper and lower sides of the rear lamp mounting panel 5, and is a striker mounting position. It is also a position away from

  According to the rear structure of the vehicle body having such a configuration, by providing the striker retainer reinforcing member 25 that connects the back pillar panel 4 and the parts M and N of the rear lamp mounting panel 5 corresponding to the open portion of the space β, The strength and rigidity of the vehicle body portion in the vicinity of the space S can be sufficiently secured, and the strength and rigidity of the rear lamp mounting portion can be increased, so that the large rear lamp 10 can be mounted. .

  Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, it goes without saying that the present invention can be applied to various door-facing vehicle body panels other than the back pillar panel 4 and various fitting component mounting panels other than the rear lamp mounting panel 5. Specifically, the present invention can be applied even to a panel to which a fitting part such as another resin decorative part (for example, garnish, ornament, etc.) is attached instead of the rear lamp mounting panel 5. The same applies to detachable fitting parts (body parts) such as guards and bumpers.

It is a perspective view which shows the vehicle body rear part structure which concerns on one Embodiment of this invention. FIG. 2 is a partial perspective view of a main part of the vehicle body rear structure of FIG. It is the XX line expanded sectional view in FIG. It is a disassembled perspective view of the principal part of the conventional vehicle body rear part structure. It is the YY line expanded sectional view in FIG. It is a perspective view which shows a striker attachment part.

Explanation of symbols

1 Back door strike cartainer 2 Retainer case 3 Strike reinforcement member 4 Back pillar panel (door-facing vehicle body panel)
5 Rear lamp mounting panel (fitting parts mounting panel)
5 ₁ , 5 ₂ component panel 6 side inner panel 7 side outer panel 8 back door 9 striker 10 rear lamp (fitting parts)
20 automobile 25 striker retainer reinforcing member 25a bent piece portion 26 door shut stopper M, N portion R closed cross-sectional shape portion S passage space α joint portion β space portion

Claims (6)

The door-facing vehicle body panel to which the striker is attached and the equipment component mounting panel to which the equipment parts are attached are joined to each other, and the cross-section concave shape in which the side facing the door-facing body panel and the equipment parts mounting panel is opened. In addition, the door-facing vehicle body panel and the fitting part mounting panel are bent so that a space portion is formed therein, and a striker reinforcing member is provided along the door-facing vehicle body panel, and the door-facing vehicle body panel and the striker reinforcement are provided. In the vehicle body rear structure in which the striker and striker retainer are disposed across a member so that the striker is attached to the door-facing vehicle body panel at a position corresponding to the space portion, the opening corresponding to the opening portion of the space portion A strut that connects the door-facing body panel and the parts mounting panel part to each other. The Karitena reinforcing member is provided, and the door facing the vehicle body panel, wherein the outfitting component mounting panel, wherein the the striker retainer reinforcing member to form a closed section portion, the striker retaining reinforcement member, the door facing the vehicle body panel and the striker A vehicle body rear structure , which is disposed along a reinforcing member and is sandwiched between the striker and the striker retainer together with the door-facing vehicle body panel and the striker reinforcing member . Of the striker retainer reinforcing member, a portion extending between the door-facing vehicle body panel and the fitting component mounting panel is a bent piece that is bent in a direction away from the door-facing vehicle body panel and the striker reinforcing member, The fitting component mounting panel is set to be longer than the door-facing vehicle body panel at the open portion of the space and extends to the opposite side of the joint portion, and the bent piece portion of the striker retainer reinforcing member is connected to the door-facing vehicle body. 2. The rear structure of a vehicle body according to claim 1, wherein the vehicle body rear structure is arranged in a state of being inclined from the panel side to the extending direction side of the equipment component mounting panel. 3. The striker and the passage space are arranged side by side facing the door thickness direction of the door-facing vehicle body panel, and the space portion is formed to be long in the door thickness direction and narrow in the door surface direction in correspondence with them. Car body rear structure as described in 4. The door-facing vehicle body panel, the outfitting component mounting panel, the striker reinforcing member, and the striker retainer reinforcing member are integrated by welding in a state of being overlapped around the space portion. 4. The vehicle body rear structure according to any one of 1 to 3. The door-facing body panel has a long shape extending along one peripheral edge of a door having a substantially rectangular outer shape, and the space portion is half the length in the longitudinal direction of the door-facing body panel. The vehicle body rear part structure according to any one of claims 1 to 4, wherein the vehicle body rear part structure is formed so as to extend over the above and overlap with a door constituting surface. The striker reinforcing member is formed so as to extend vertically up and down along the joining direction so as to overlap the position where the door shut stopper is disposed, and the striker retainer reinforcing member is provided only at a position near the top and bottom of the striker. The vehicle body rear part structure according to any one of claims 1 to 5, wherein the vehicle body rear part structure is provided.

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