JP4997914B2 - Door structure - Google Patents

Description

  The present invention relates to a vehicle door structure.

  A door structure in which a lateral impact beam (impact bar) extending in the front-rear direction of the door and a vertical impact beam extending in the vertical direction of the door has been devised inside the side door (see, for example, Patent Document 1).

In this door structure, since the vertical impact beam only extends in the vertical direction of the door, there is a possibility that the displacement of the side door will increase at the time of a side collision of the vehicle, and the cabin space on the side of the side door will be greatly reduced. is there.
Japanese Patent Laid-Open No. 4-129929

  In consideration of the above-described facts, an object of the present invention is to suppress a reduction in a passenger compartment space at the side of a door at the time of a side collision of a vehicle.

In the door structure according to claim 1, an impact beam extending in the front-rear direction of the door of the vehicle door, and an intermediate portion between one end side and the other end side intersecting the impact beam and extending in the door vertical direction are bent at one end side. And a reinforcing member connected at the upper side of the door of the impact beam, and the other end side of the front side of the door from the one end side of the reinforcing member extends to the lower side of the door of the impact beam, overlap the rocker in the vehicle width direction to constitute the edges of the vehicle body lower side, a load transmission means for transmitting a load inputted to the reinforcing member from the other end of the reinforcing member to the rocker is provided on the rocker, the The load transmitting means is arranged to face the other end side of the reinforcing member, and the other end side is pushed in and fitted in a side collision of the vehicle to restrict movement of the other end side to the vehicle width outside. Open outside width And a bulkhead is disposed inside the rocker, and a vehicle is disposed at a portion of the wall portion on the inner side of the rocker where the bulkhead is disposed. Ends in the vehicle width direction of floor cross members extending in the width direction are joined, and the load transmitting means is provided outside the width of the rocker where the bulkhead is disposed. To do.

  In the door structure according to the first aspect, the impact beam extends in the front-rear direction of the door of the vehicle door. Further, the reinforcing member intersects with the impact beam. The reinforcing member has a configuration in which the middle between the one end side and the other end side extending in the vertical direction of the door is bent and the one end side and the other end side are connected on the upper side of the door of the impact beam.

  As a result, it is possible to suppress the inward deformation of the door in the horizontal and vertical sections of the door that occurs during a side collision of the vehicle over a wide range in the door vertical direction and the door front-rear direction. It becomes possible to suppress a reduction in the space of the passenger compartment on the side.

Further, the other end side of the reinforcing member (front side of the door) extends to the lower side of the impact beam door , and the load transmitting means provided on the rocker at the time of a side collision of the vehicle is changed from the other end side of the reinforcing member to the rocker . The load input to the reinforcing member is transmitted and dispersed. As a result, it is possible to effectively suppress deformation inward in the vehicle width direction in the horizontal and vertical cross sections of the door.

A door structure according to a second aspect is the door structure according to the first aspect , wherein one end side of the rear side of the door from the other end side of the reinforcing member is overlapped with the vehicle body side when viewed in the vehicle width direction. It is arranged.

In the door structure according to claim 2 , it is possible to prevent the rear side of the door of the reinforcing member from falling inward in the vehicle width direction at the time of a side collision of the vehicle, and the load input to the reinforcing member is applied to one end of the reinforcing member. Is transmitted from the side (the rear side of the door) to the vehicle body side and dispersed. As a result, it is possible to effectively suppress deformation inward in the vehicle width direction in the horizontal and vertical cross sections of the door.

The door structure according to claim 3 intersects the impact beam extending in the front-rear direction of the door of the vehicle door, the impact beam, and one end side overlaps the vehicle body side and the vehicle width direction on the upper side of the impact beam door. A rocker that extends to the lower side of the door of the impact beam and constitutes an edge of the lower side of the vehicle body and a reinforcing member that overlaps in the vehicle width direction, and a load input to the reinforcing member is applied to the door of the reinforcing member A load transmitting means for transmitting to the rocker from the other end side extending to the lower side is provided in the rocker, and the load transmitting means is disposed to face the other end side of the reinforcing member, and is a side collision of the vehicle. Sometimes the other end side is pushed in and fitted, and there is a fitting portion formed with a groove opened on the outer side of the vehicle width to restrict the movement of the other end side to the outer side of the vehicle width. And an end portion in the vehicle width direction of a floor cross member extending in the vehicle width direction is joined to a portion of the wall portion on the inner side of the rocker where the bulkhead is disposed, and the load The transmission means is provided outside the vehicle width of a portion of the rocker where the bulkhead is disposed .

In the door structure according to the third aspect , in the door of the vehicle, the impact beam extends in the door front-rear direction. Further, the reinforcing member intersects with the impact beam. One end side of the reinforcing member overlaps with the vehicle body side in the vehicle width direction on the upper side of the impact beam door, and the other end side of the reinforcing member overlaps with the rocker on the lower side of the impact beam door.

  As a result, it is possible to suppress the inward deformation of the door in the horizontal and vertical sections of the door that occurs during a side collision of the vehicle over a wide range in the door vertical direction and the door front-rear direction. It becomes possible to suppress a reduction in the space of the passenger compartment on the side.

Further, when the vehicle has a side collision, the load transmitting means provided on the vehicle body side transmits and distributes the load input to the reinforcing member from the other end side of the reinforcing member to the rocker. Thus, that Do is possible to effectively suppress the deformation in the vehicle width direction inner side in the horizontal section and vertical section of the door.

  As described above, according to the present invention, it is possible to suppress a decrease in the cabin space on the side of the door at the time of a side collision of the vehicle.

Next, an embodiment of the door structure of the present invention will be described with reference to FIGS.
In the figure, the arrow FR indicates the vehicle body front direction and the door front direction, the arrow UP indicates the vehicle body upward direction and the door upward direction, and the arrow IN indicates the vehicle width inside direction.

  As shown in FIG. 1, a front side door opening 12 is formed in a side portion of the vehicle body 10. The front side door opening 12 includes a front pillar 14 that forms an edge on the front side of the vehicle body, a roof side rail (not shown) that forms an edge on the upper side of the vehicle, and a center pillar that forms an edge on the rear side of the vehicle. 16 and a rocker 18 that forms a lower edge of the vehicle body, and is opened and closed by a front side door 22 supported by the front pillar 14 via a hinge 20.

  As shown in FIG. 2, the rocker 18 includes a rocker outer panel 24 that forms an outer plate of the rocker 18, and a rocker reinforcement 26 having a closed cross-sectional structure that extends in the vehicle longitudinal direction inside the rocker outer panel 24. And a bulkhead 28 disposed inside the rocker reinforcement 26.

  The rocker outer panel 24 is a panel having a hat shape whose cross section in the longitudinal direction of the vehicle body opens to the inside of the vehicle width, and flange portions 24A are formed at both ends in the vertical direction of the vehicle body. Further, a stepped portion 24C whose height decreases from the vehicle width inside to the outside is formed in the wall portion 24B on the vehicle body upper side of the rocker outer panel 24.

  The rocker reinforcement 26 is composed of a rocker reinforcement inner 30 and a rocker reinforcement outer 32 both having a hat shape that opens in the vehicle width direction. The rocker reinforcement 26 includes a flange portion 30A formed at both ends in the vehicle body vertical direction of the rocker reinforcement inner 30 and a flange portion 32A formed at both ends in the vehicle body vertical direction of the rocker reinforcement outer 32. A closed cross-section is formed by welding. Further, the flange portion 24A and the flange portion 32A of the rocker outer panel 24 are welded, and the rocker outer panel 24 and the rocker reinforcement outer 32 form a closed cross section.

  Further, a step portion 32C whose height decreases from the vehicle width inner side to the outer side is formed on the wall portion 32B on the vehicle body upper side of the rocker reinforcement outer 32. The stepped portion 32C and the stepped portion 24C formed on the rocker outer panel 24 are in contact with each other and are both vertical.

  Further, as shown in FIG. 3, the bulkhead 28 is a reinforcing member having a hat shape in which a cross section perpendicular to the vertical direction of the vehicle body is open to the outside of the vehicle width, and flange portions 28A formed at both ends in the vehicle longitudinal direction are provided. The wall portion 28B on the vehicle width inner side is brought into contact with the wall portion 30B on the vehicle width inner side of the rocker reinforcement inner 30 by being fastened to the step portion 32C of the rocker reinforcement outer 32 together with a catch 48 described later. ing. Further, an end portion in the vehicle width direction of the floor cross member 33 extending in the vehicle width direction is coupled to the wall portion 30B on the vehicle width inner side of the rocker reinforcement inner 30 by welding or the like.

  As shown in FIG. 2, the front side door 22 includes a door outer panel 34 that forms the door outer surface, and a door inner panel 36 that is disposed inside the vehicle outer side of the door outer panel 34 and forms the side of the vehicle compartment. It is configured. The outer peripheral edge portion of the door outer panel 34 and the outer peripheral edge portion of the door inner panel 36 are coupled by a hemming coupling portion 38.

  Further, the door outer panel 34 is gently curved from the hemming coupling portion 38 to the vehicle width outside. On the other hand, the door inner panel 36 bulges inward in the vehicle width from the vicinity of the hemming coupling portion 38, and the lower portion of the door inner panel 36 faces the wall portion 24 </ b> B on the vehicle body upper side of the rocker outer panel 24 in the vertical direction of the vehicle body. A wall portion 36A is formed.

  As shown in FIG. 1, an impact beam 38, which is a pipe material, is extended inside the front side door 22 along the front-rear direction of the door. A mounting bracket 40 is welded to the door front end portion 38A of the impact beam 38, and the mounting bracket 40 is coupled to the door front side end portion of the door inner panel 36 by welding or the like. On the other hand, a mounting bracket 42 is welded to the door rear end 38B of the impact beam 38, and the mounting bracket 42 is coupled to the door rear end of the door inner panel 36 by welding or the like. Here, the mounting brackets 40 and 42 are disposed below the vehicle body from the vicinity of the abdomen B of the occupant P seated on the front seat, and the impact beam 38 is disposed below the vehicle body from the vicinity of the abdomen B of the occupant P. ing. The door front end 38A of the impact beam 38 overlaps with the front pillar 14 in the vehicle width direction, and the door rear end 38B of the impact beam 38 overlaps with the center pillar 16 in the vehicle width direction.

  A loop-shaped reinforcing member 44 as a reinforcing member is disposed inside the front side door 22. The loop-shaped reinforcing member 44 is made of the same pipe material as that of the impact beam 38, and has one end side and the other end side in the axial direction as linear straight portions 44A and 44B, respectively, and the straight portion 44A and the straight portion 44B. The loop portion 44C is curved in a loop shape.

  The straight portion 44A extends in the vertical direction of the door at the rear portion of the door, and the front end portion (lower end portion of the vehicle body) 44F of the straight portion 44A and the door rear end side of the impact beam 38 overlap in the vehicle width direction. Yes. As shown in FIG. 4, a recess 44G that is squeezed and recessed toward the inside of the vehicle width is formed at the front end 44F of the linear portion 44A, and this recess 44G is joined to the rear end side of the impact beam 38 by welding. ing.

  As shown in FIG. 1, the straight portion 44 </ b> B extends in the door vertical direction at the door front-rear direction center, and intersects (substantially orthogonal) the door front-rear direction center of the impact beam 38. As shown in FIG. 2, a recessed portion 44D that is squeezed and recessed toward the inside of the vehicle width is formed at a portion that intersects the impact beam 38 of the straight portion 44B, and this recessed portion 44D is coupled to the impact beam 38 by welding. ing.

  The straight portion 44B extends to the lower side of the door of the impact beam 38 and is inserted into an opening 46 formed in the wall portion 36A on the lower side of the door of the door inner panel 36. The end 44E is opposed to the stepped portion 24C of the rocker outer panel 24 in the vehicle width direction.

  Here, as shown in FIG. 1, the straight portion 44A is disposed on the rear side of the vehicle body near the abdomen B of the occupant P seated on the front seat, and the straight portion 44B is disposed on the front side of the vehicle body near the abdomen B of the occupant P. The loop portion 44C is located near the abdomen B of the occupant P seated on the front seat and in the vehicle width direction, regardless of the sliding position of the front seat in the longitudinal direction of the vehicle body. Are arranged so as to overlap each other.

  Further, a boundary portion 44H between the straight portion 44B and the loop portion 44C is disposed at the center portion in the vertical direction and the front-rear direction in the lower portion of the front side door 22. Further, the straight portion 44A overlaps the center pillar 16 in the vehicle width direction from the distal end portion 44F to the proximal end portion 44I.

  Further, as shown in FIGS. 1 and 2, a catch 48 as a load transmitting means is disposed on the step portion 24 </ b> C of the rocker outer panel 24. As shown in FIGS. 3 and 5, the catch 48 is formed with a fitting portion 48 </ b> A in which a groove 48 </ b> C opened to the outer side of the vehicle width is formed, and on the both sides of the fitting portion 48 </ b> A in the longitudinal direction of the vehicle body. 24C, a stepped portion 32C of the rocker reinforcement outer 32, and a pair of flange portions 48B fixed to the flange portion 28A of the bulkhead 28 by fastening. The catch 48 is made of a metal such as iron or aluminum, or a high-strength engineering plastic such as FRP (fiber reinforced plastic) or nylon.

  Here, as shown in FIG. 3, the front end 44E of the linear portion 44B is opposed to the groove 48C formed in the fitting portion 48A with a slight gap in the vehicle width direction. Further, the shape of the groove 48 </ b> C as viewed from above and below the vehicle body is uniform and C-shaped. Here, when the leading end 44E of the linear portion 44A is pushed into the groove 48C by an excessive load such as a collision load at the time of a side collision of the vehicle, the leading end 44E is fitted into the groove 48C and the vehicle width of the leading end 44E is reached. The diameter of the front end portion 44E of the linear portion 44B, the shape and size of the groove 48C, the rigidity of the fitting portion 48A, and the like are set so that the outward movement is restricted.

  Next, the operation according to this embodiment will be described.

  When a collision load from the outside to the inside of the vehicle width is input to the front side door 22 at the time of a side collision of the vehicle, the door outer panel 34 is deformed to the inside of the vehicle width in the horizontal section, and the door outer panel 34 is viewed from the front and rear direction of the door. In the cross section (hereinafter referred to as a vertical cross section), a dogleg-shaped deformation inward of the vehicle width occurs.

  At this time, when the bumper of the harming vehicle and the impact beam 38 overlap in the vehicle width direction, the collision load is input to the impact beam 38. Here, the door front side end portion 38A of the impact beam 38 overlaps with the front pillar 14 in the vehicle width direction, and the door rear side end portion 38B of the impact beam overlaps with the center pillar 16 in the vehicle width direction.

  For this reason, the bumper of the harming vehicle is received by the impact beam 38, and the collision load input to the door outer panel 34 is transmitted from the impact beam 38 to the front pillar 14 and the center pillar 16 to be dispersed. To the rocker 18 through the loop-shaped reinforcing member 44 and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed.

  On the other hand, when the bumper of the harming vehicle is positioned on the upper side of the vehicle body from the impact beam 38, the collision load is input to the loop-shaped reinforcing member 44 extending from the impact beam 38 to the upper side of the door. Here, the loop-shaped reinforcing member 44 is firmly fixed to the impact beam 38 at one point on the front side of the vehicle body and one point on the rear side near the abdomen B of the occupant P of the vehicle body 10. For this reason, the bumper of the harming vehicle is received by the loop-shaped reinforcing member 44, and the collision load input to the loop-shaped reinforcing member 44 causes the front pillar 14 and the center pillar to pass through the impact beam 38 from the straight portion 44A and the straight portion 44B. 16 to be distributed. Further, the central portion of the lower portion of the door outer panel 10 in the vertical direction and the front-rear direction is received by a boundary portion 44H between the linear portion 44B and the loop portion 44C. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 at the time of a vehicle side collision, and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed.

  Further, the loop-shaped reinforcing member 44 is arranged such that a part of the loop portion 44C of the loop-shaped reinforcing member 44 overlaps with the vicinity of the abdomen B of the occupant P in the vehicle width direction regardless of the slide position of the front seat on which the occupant P is seated. Is set, it is possible to suppress a decrease in the cabin space on the side of the vehicle width near the abdomen B of the occupant P.

  Further, since the straight portion 44A of the loop-shaped reinforcing member 44 overlaps the center pillar 16 in the vehicle width direction, the rear side of the door of the loop-shaped reinforcing member 44 is suppressed from falling into the vehicle width side, and the loop-shaped reinforcing member The collision load input to 44 is transmitted from the straight portion 44A to the center pillar 16 and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed effectively.

  Further, as indicated by a two-dot chain line in FIG. 3, the loop-shaped reinforcing member 44 is displaced in the vehicle width direction by a collision load input to the loop-shaped reinforcing member 44 at the time of a side collision of the vehicle, and the loop-shaped reinforcing member 44 When the distal end portion 44E of the linear portion 44B is pushed into the groove 48C of the catch 48, the distal end portion 44E is fitted (fixed) into the groove 48C, and movement of the distal end portion 44E to the outside of the vehicle width is restricted. For this reason, since the loop-shaped reinforcing member 44 is prevented from rotating so that the vehicle upper side of the loop-shaped reinforcing member 44 falls into the vehicle width inside, the door front side of the loop-shaped reinforcing member 44 falls into the vehicle width inside. And the collision load input to the loop-shaped reinforcing member 44 is applied to the floor cross member 33 and the anti-collision from the straight portion 44B via the catch 48 and the bulkhead 28 provided in the rocker reinforcement 26. It is transmitted to the side rocker 18 etc. and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed effectively. Moreover, it can suppress that the lower end part of the door outer panel 34 remove | deviates from the rocker 18, and enters into a vehicle interior.

  As described above, according to the present embodiment, the height of the loop-shaped reinforcing member 44 from the impact beam 38 is adjusted even if the vehicle height of the vehicle body 10 is low and the harming vehicle is a vehicle body with a high bumper position such as an SUV vehicle body. By doing so, it is possible to suppress a decrease in the space in the passenger compartment on the side near the abdomen B of the occupant P.

  Next, a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and description is abbreviate | omitted.

  As shown in FIG. 6, an L-shaped reinforcing member 50 as a reinforcing member is disposed inside the front side door 22 of the vehicle body 100. The L-shaped reinforcing member 50 is made of a pipe material similar to that of the impact beam 38, and one end side and the other end side in the axial direction are linear straight portions 50A and 50B, respectively. Between 50B, it is set as the curved part 50C curved in R shape.

  The straight portion 50B has the same configuration as the straight portion 44B in the first embodiment. Further, the straight portion 50A is disposed substantially perpendicular to the straight portion 50B, and extends in the door front-rear direction on the door upper side and the door rear side of the straight portion 50B. Further, a mounting bracket 52 is welded to the door rear side end (front end) 50D of the linear portion 50A, and this mounting bracket 52 is coupled to the door rear side end of the door inner panel 36 by welding or the like. Yes. The mounting bracket 52 overlaps the center pillar 16 in the vehicle width direction, and the vehicle body rear side end portion 50D of the linear portion 50A overlaps the center pillar 16 in the vehicle width direction.

  Here, at least a part of the straight portion 50A and the loop portion 50C overlaps with the vicinity of the abdomen B of the occupant P in the vehicle width direction regardless of the slide position of the front seat on which the occupant P is seated, and is curved with the straight portion 50A. The L-shaped reinforcing member 50 is set so that the boundary portion 50F with the portion 50C is disposed at the center in the vertical direction and the front-rear direction of the lower portion of the front side door 22.

  Next, the operation according to this embodiment will be described.

  If the bumper of the harming vehicle and the impact beam 38 overlap in the vehicle width direction at the time of a side collision of the vehicle, the bumper of the harming vehicle is received by the impact beam 38 and the door outer panel 34 is the same as in the first embodiment. Is applied to the front pillar 14 and the center pillar 16 from the impact beam 38 and dispersed, and further transmitted from the impact beam 38 to the rocker 18 via the L-shaped reinforcing member 50 and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed.

  On the other hand, when the bumper of the harming vehicle is positioned on the upper side of the vehicle body with respect to the impact beam 38, the collision load is input to the L-shaped reinforcing member 50. Here, the L-shaped reinforcing member 50 is firmly fixed to the impact beam 38 at one point on the front side of the vehicle body in the vicinity of the abdomen B of the occupant P. It is firmly fixed to a mounting bracket 52 that overlaps the pillar 16 in the vehicle width direction. Therefore, the bumper of the harming vehicle is received by the L-shaped reinforcing member 50, and the collision load input to the loop-shaped reinforcing member 50 is transmitted from the straight portion 50B to the front pillar 14 and the center pillar 16 via the impact beam 38. Moreover, it is directly transmitted to the center pillar 16 from the straight part 50A. Further, the central portion of the lower portion of the door outer panel 34 in the vertical direction and the front-rear direction is received by a boundary portion 50F between the straight portion 50A and the curved portion 50C. Accordingly, it is possible to suppress the deformation of the door outer panel 34 toward the inner side of the vehicle width in the horizontal section and the deformation of the dog-shaped shape toward the inner side of the vehicle width at the vertical section of the door outer panel 34 at the time of a side collision of the vehicle.

  Further, at least a part of the straight portion 50B and the curved portion 50C of the L-shaped reinforcing member 50 overlaps with the vicinity of the abdomen B of the occupant P in the vehicle width direction regardless of the slide position of the front seat on which the occupant P is seated. Since the L-shaped reinforcing member 50 is set, it is possible to suppress a decrease in the vehicle interior space on the side of the vehicle width near the abdomen B of the occupant P.

  Further, since the straight portion 50A of the L-shaped reinforcing member 50 overlaps the center pillar 16 in the vehicle width direction, the rear side of the door of the L-shaped reinforcing member 50 is prevented from falling into the vehicle width side, and the L-shaped The collision load input to the shaped reinforcing member 50 is transmitted from the straight portion 50A to the center pillar 16 and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed effectively.

  Further, the L-shaped reinforcing member 50 is displaced in the vehicle width direction due to the collision load input to the L-shaped reinforcing member 50 at the time of a side collision of the vehicle, and the front end portion 50E of the straight portion 50B of the L-shaped reinforcing member 50 When the catch 48 is pushed into the groove 48C, the tip 50E is fitted into the groove 48C, and the movement of the tip 50E to the outside of the vehicle width is restricted. For this reason, since the L-shaped reinforcing member 50 is prevented from rotating so that the vehicle upper side of the L-shaped reinforcing member 50 falls to the inside of the vehicle width, the door front side of the L-shaped reinforcing member 50 is the vehicle width inside. The collision load input to the L-shaped reinforcing member 50 is prevented from falling into the floor cross member 34 from the straight portion 50B via the catch 48 and the bulkhead 28 provided in the rocker reinforcement 26. Then, it is transmitted to the rocker 18 etc. on the anti-collision side and dispersed. Thereby, the deformation | transformation to the vehicle width inner side in the horizontal cross section of the door outer panel 34 and the character-shaped deformation | transformation to the vehicle width inner side in the vertical cross section of the door outer panel 34 can be suppressed effectively. Moreover, it can suppress that the lower end part of the door outer panel 34 remove | deviates from the rocker 18, and enters into a vehicle interior.

  As described above, according to the present embodiment, the height of the L-shaped reinforcing member 50 from the impact beam 38 is reduced even if the vehicle body 100 has a low vehicle height and the harming vehicle is a vehicle body with a high bumper position such as an SUV vehicle body. By adjusting, it is possible to suppress a decrease in the passenger compartment space on the side near the abdomen B of the occupant P.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in the present embodiment, the door structure of the present invention is applied to a front side door that can be opened and closed by a hinge, but the present invention can also be applied to a slide door, a rear side door, and the like.

  In the first embodiment, the reinforcing member is the loop-shaped reinforcing member 44 that is curved in the middle of the loop. However, the reinforcing member is not necessarily curved in the middle of the loop, and is bent in the middle. It may be made, or the whole may be curved in a loop shape. Further, the straight portions 44A, 44B, 50A may be vertical or may be inclined with respect to the vertical direction. Further, in the present embodiment, the reinforcing member that is a bent bar material is the loop-shaped reinforcing member 44 and the L-shaped reinforcing member 50 that are made of a pipe material, but is made of a bar material that has a hat-shaped cross section. You may do it. Further, in the present embodiment, the loop-shaped reinforcing member 44 and the L-shaped reinforcing member 50 as the reinforcing members are fixed to the impact beam 38 and the mounting bracket by welding. Fastening with bolts or the like may be used.

It is a schematic side view which shows 1st Embodiment of the door structure of this invention. It is 2-2 sectional drawing of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is a side view of 4-4 in FIG. 1. It is a perspective view which expands and shows a catch. It is a schematic side view which shows 2nd Embodiment of the door structure of this invention.

Explanation of symbols

10 Car body 22 Front side door (door)
38 Impact beam 44 Loop-shaped reinforcing member (reinforcing member)
44A Straight part (one end of the reinforcing member)
44B Straight part (the other end of the reinforcing member)
48 Catch (Load transmission means)
50 L-shaped reinforcing member (reinforcing member)
50A straight section (one end of the reinforcing member)
50B Straight part (the other end of the reinforcing member)
100 body

Claims (3)

An impact beam extending in the front-rear direction of the door of the vehicle;
A reinforcing member that intersects the impact beam and is bent at the middle between the one end side and the other end side extending in the vertical direction of the door, and one end side and the other end side are connected on the door upper side of the impact beam;
Have
The other end side of the front side of the door from the one end side of the reinforcing member extends to the lower side of the door of the impact beam, and overlaps with the rocker constituting the lower edge of the vehicle body in the vehicle width direction,
It said load transmission means for transmitting to said rocker from the other end of the reinforcing member the input load to the reinforcing member is provided on the rocker,
The load transmitting means is disposed to face the other end side of the reinforcing member, and the other end side is pushed in and fitted in a side collision of the vehicle to limit the movement of the other end side to the outside of the vehicle width. It has a fitting part in which a groove opened on the vehicle width outside is formed,
A bulkhead is disposed inside the rocker, and a vehicle in the vehicle width direction of a floor cross member extending in the vehicle width direction at a portion of the wall inside the rocker where the bulkhead is disposed. The ends are joined,
The load transmitting means is a door structure provided outside the vehicle width of a portion of the rocker where the bulkhead is disposed .   The door structure according to claim 1, wherein one end side of the rear side of the reinforcing member from the other end side of the reinforcing member is disposed so as to overlap the vehicle body side when viewed in the vehicle width direction. An impact beam extending in the front-rear direction of the door of the vehicle;
A rocker and a vehicle that intersect with the impact beam, one end overlaps with the vehicle body side in the vehicle width direction on the upper side of the impact beam door, and the other end extends to the lower side of the door of the impact beam to form an edge on the lower side of the vehicle body A reinforcing member overlapping in the width direction;
Have
It said load transmission means for transmitting to said rocker from the other end of the reinforcing member the input load to the reinforcing member is provided on the rocker,
The load transmitting means is disposed to face the other end side of the reinforcing member, and the other end side is pushed in and fitted in a side collision of the vehicle to limit the movement of the other end side to the outside of the vehicle width. It has a fitting part in which a groove opened on the vehicle width outside is formed,
A bulkhead is disposed inside the rocker, and a vehicle in the vehicle width direction of a floor cross member extending in the vehicle width direction at a portion of the wall inside the rocker where the bulkhead is disposed. The ends are joined,
The load transmitting means is a door structure provided outside the vehicle width of a portion of the rocker where the bulkhead is disposed .

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