JP6725870B2 - Vehicle door structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door structure, and more particularly, to a reinforcing structure of a door checker portion that controls the opening degree of a hinged door that is supported by a pillar of a vehicle body so as to be openable and closable.

As a conventional vehicle door structure of this type, for example, a technique described in Patent Document 1 can be cited. FIG. 6 is a plan sectional view (corresponding to the section taken along the line III-III in FIG. 1) showing the relationship between the inner panel front surface and the reinforcement in the vehicle door structure of Patent Document 1, and FIG. It is a perspective view which shows the relationship with force.
The door 101 of the vehicle is configured by joining the periphery of an inner panel 2 and an outer panel 3, and the inner panel 2 has a shape that bulges toward the interior of the vehicle, so that a space for housing a window regulator or the like is formed in the door 101. Has been done. The front surface 2b of the inner panel 2 is connected to the pillars of the vehicle body through a pair of upper and lower hinges 6 (the lower side is shown in FIG. 7), and the door 101 is supported to be openable and closable. The front surface 2b of the inner panel 2 has a cross-sectional shape that is continuous from the case mounting portion 12 on the vehicle interior side through the step portion 14 to the gap forming portion 13 on the outer side of the vehicle interior. On the other hand, the gap forming portion 13 is located in front of the vehicle.

The reinforcement 102 is arranged inside the door 101 so as to face the front surface 2b of the inner panel 2, and its case mounting portion 103 is superposed on the case mounting portion 12 of the inner panel 2 so as to extend to the outside of the vehicle compartment and to be cranked. It continues to the parallel part 105 via the step part 104 which has a cross-sectional shape. As a result, a gap having a substantially rectangular cross section is formed between the step portion 14 of the inner panel 2 and the step portion 104 of the reinforcement 102, and this gap is a parallel portion between the gap forming portion 13 of the inner panel 2 and the reinforcement 102. 105 to the gap formed between them.

In the door 101, the checker case 8 of the door checker 7 is fixed on the case attachment portion 103 of the reinforcement 102. One end of a checker arm 9 is inserted from the front into the checker case 8 through a checker hole 18, and a stopper 9a is fixed thereto, and the other end of the checker arm 9 is pivotally supported by a pillar (not shown) on the vehicle body side. When the door 101 is opened around the hinge 6, the checker arm 9 is pulled forward from the checker case 8 and the stopper 9a is hooked on the checker case 8 to restrict the opening operation of the door 101.

JP, 2005-143044, A

However, in the vehicle door structure described in Patent Document 1, when the door 101 receives a strong force in the opening direction beyond the fully opened position due to a gust of wind, a rough opening operation, or the like (hereinafter, when a door receives an overrun input, In other words, there is a problem that the case mounting portion 12 of the inner panel 2 is deformed by protrusion.
That is, at the fully opened position of the door 101, the checker arm 9 reaches the angle shown in FIG. 6, and the opening operation of the door 101 is restricted, so that the checker case 9 is inserted into the checker case 8 via the arrow F1 in FIG. The pulling force acting to the front of the vehicle and to the outside of the vehicle is acted on. This tensile force is transmitted to the reinforcement 102 side through the contact surface between the checker case 8 and the reinforcement 102. However, due to the above-described direction of the tensile force, the reinforcement 102 is separated from the contact surface of the checker case 8. A large forward pulling force is transmitted outside the vehicle interior than inside the vehicle interior.

Therefore, the reinforcement 102 receives a compressive force in the direction (diagonal direction of the square cross section) that crushes the gap of the substantially square cross section between the reinforcement 102 and the inner panel 2 shown by the arrow F2 in FIG. Since the compression force at this time acts on the reinforcement 102 in a so-called out-of-plane direction, the reinforcement 102 is easily deformed without effectively opposing the compression force. As a result, the case mounting portion 12 of the inner panel 2 which receives the tensile force is deformed to project, and since this portion is a position where it is easily noticed when getting on and off, there is a problem that the commercialability of the vehicle is impaired.

The present invention has been made to solve such a problem, and an object of the present invention is to prevent the inner panel case mounting portion from protruding and deforming even when the door receives an overrun input. An object of the present invention is to provide a vehicle door structure that can be restrained and thereby can enhance the commercialability of the vehicle.

In order to achieve the above object, a vehicle door structure of the present invention forms a door together with an outer panel, and one side to which a hinge for opening and closing the door is fixed is a gap between a case attachment portion on the vehicle interior side and a vehicle exterior side. It is divided into a forming part, and the inner panel is positioned on one side of the gap-forming portion relative to the case mounting portion via a step portion, arranged opposite to one side surface of the inner panel in said door, before serial Rutotomoni of having a case mounting portion superposed with respect to the case mounting portion of the inner panel, a reinforcement which extends into the passenger compartment outwardly to form between gap with respect to the gap forming portions of said inner panel, It is composed of a checker case fixed on the case attachment part of the reinforcement in the door and a checker arm connecting the checker case and the vehicle body side, and a predetermined opening operation of the door is performed through the checker arm. In a vehicle door structure provided with a door checker that regulates with a degree, the reinforcement is separated from the inner panel starting from the step portion of the inner panel, and is linear toward the outside and one side of the vehicle compartment. A checker case is formed at a position where an end surface of the checker case outside the vehicle compartment substantially coincides with a stepped portion of the inner panel. It is fixed to the case mounting portion of (1).

According to the vehicle door structure configured in this manner, when the door checker restricts the opening operation of the door, the tensile force is transmitted from the checker case to the reinforcement through the contact surfaces of the checker case. Since the pulling force from the arm is directed to one side slightly to the outside of the vehicle compartment, the reinforcement is transmitted to the contacting surface of the checker case to a larger one side to the outside of the vehicle compartment than to the inside of the vehicle compartment. Due to this tensile force, a compressive force substantially along the extending direction acts on the slanted portion of the reinforcement, so that the deformation of the reinforcement is suppressed and, inevitably, the deformation of one side surface of the inner panel is also suppressed.
In addition, when the slanted portion is extended from a position separated from the stepped portion of the inner panel to the outside of the vehicle compartment, a flat area that does not extend in the in-plane direction is formed between the checker case and the slanted portion. However, such a defect is prevented in advance.
Also, when the checker case is separated from the stepped portion of the inner panel toward the inside of the vehicle, a flat region that does not extend in the in-plane direction is formed between the checker case and the slanted portion and is deformed early. However, such a problem is prevented in advance.

As another aspect, the oblique portion of the reinforcement is in a direction along a force received by the oblique portion due to a pulling force from the checker arm when the opening operation of the door is restricted by the door checker. It is preferable that it is extended to the (Claim 2).
According to this aspect, the compressive force transmitted due to the tensile force from the checker arm reliably acts in the in-plane direction on the oblique portion, and the rigidity of the oblique portion is maximized against the compressive force. It is exerted to the maximum, and thus the deformation of the reinforcement is suppressed.

According to the vehicle door structure of the present invention, even when the door receives an overrun input, it is possible to suppress the projecting deformation of the case mounting portion of the inner panel, etc., thereby improving the commercialability of the vehicle. ..

It is a perspective view showing a left door to which a vehicle door structure of an embodiment is applied. It is a perspective view which similarly shows the left door which removed the inner panel. FIG. 3 is a sectional view taken along line III-III in FIG. 1 showing a relationship between the front surface of the inner panel and the reinforcement. It is a perspective view which similarly shows the relationship between the front surface of an inner panel, and reinforcement. FIG. 3 is a detailed view of a main part of a portion A in FIG. 2. FIG. 6 is a plan sectional view showing the relationship between the front surface of the inner panel and the reinforcement in the vehicle door structure of Patent Document 1. It is a perspective view which similarly shows the relationship between the front surface of an inner panel, and reinforcement.

Hereinafter, an embodiment of a vehicle door structure embodying the present invention will be described.
1 is a perspective view showing a left door to which the vehicle door structure of the present embodiment is applied, FIG. 2 is a perspective view showing a left door from which an inner panel is also removed, and FIG. 3 is a front view of the inner panel and a reinforcement. 3 is a cross-sectional view taken along line III-III of FIG. 1, FIG. 4 is a perspective view showing a relationship between the front surface of the inner panel and the reinforcement, and FIG. 5 is a detailed view of a main part of a portion A in FIG. Hereinafter, for convenience of description, the up and down and front and rear directions are defined with reference to the vehicle, and the left and right directions are referred to as the vehicle interior side and the vehicle interior side.

A left door 1 (hereinafter simply referred to as a door) of a vehicle is formed by an inner panel 2 and an outer panel 3 which are formed by press-molding a steel plate, and both panels 2 and 3 are joined together by a hemming process with their peripheries being overlapped with each other. Called 4. A sash 5 is formed on the upper portion of the door 1, and below the sash 5, the inner panel 2 bulges toward the vehicle interior side and forms a bulging surface 2a facing the vehicle interior. A space is formed in the door 1 by being formed on the bulging surface 2a, and a window regulator (not shown) or the like is arranged in this space.

By connecting one end of a pair of upper and lower hinges 6 to the front surface 2b of the inner panel 2 formed by bulging toward the vehicle interior side, and fixing the other ends of these hinges 6 to pillars of the vehicle body (not shown), The door 1 is supported on the vehicle body so as to be openable and closable around a hinge 6. The opening operation of the door 1 is regulated by the door checker 7 at a predetermined opening, and the regulation position is the fully opened state of the door 1.

As will be described below, the door checker 7 is composed of a checker case 8 and a checker arm 9, and the checker case 8 is attached to the front surface 2b of the inner panel 2 inside the door 1. Since a large force acts on the checker case 8 via the checker arm 9 when the opening operation of the door 1 is restricted, the front surface 2b of the inner panel 2 is reinforced by the reinforcement 11 arranged in the door 1. The checker case 8 and the upper and lower hinges 6 are fixed to the front surface 2b of the inner panel 2 via the reinforcement 11. Hereinafter, the structures of the front surface 2b of the inner panel 2 and the reinforcement 11 will be described.

In particular, as shown in FIGS. 3 and 4, the front surface 2 b (one side surface) of the inner panel 2 is divided into a case mounting portion 12 on the vehicle interior side and a gap forming portion 13 on the vehicle exterior side. A step portion 14 is formed between the gap forming portion 13 and the gap forming portion 13. The step portion 14 has a crank-shaped cross-sectional shape, and the gap forming portion 13 is located in front of the vehicle (on one side) with respect to the case mounting portion 12 by interposing the step portion 14. The cross-sectional shape of the front surface 2b of the inner panel 2 described above is formed over a predetermined vertical region including the position of the checker case 8. The case attachment portion 12 of the front surface 2b is continuous with the bulging surface 2a on the vehicle interior side, and the gap forming portion 13 of the front surface 2b is connected to the connection portion 4 via the connection surface 15 that is bent forward at a right angle outside the vehicle interior. It is continuous.

The reinforcement 11 is disposed inside the door 1 so as to face the front surface 2b of the inner panel 2, and has a vertical dimension and a vehicle interior/exterior dimension substantially corresponding to the front surface 2b of the inner panel 2, as shown in FIGS. ing. As shown in FIGS. 3 and 4, the end portion 11a of the reinforcement 11 on the vehicle interior side is bent rearward, overlapped with the bulging surface 2a of the inner panel 2 and joined by spot welding. Further, the end portion 11b of the reinforcement 11 on the outer side of the vehicle compartment is bent forward and is overlapped with the joint surface 15 of the inner panel 2 and joined by spot welding, whereby the reinforcement 11 is integrated with the inner panel 2. Has been converted.

The reinforcement 11 overlaps the case mounting portion 12 of the inner panel 2 without a gap, and this portion is hereinafter referred to as a case mounting portion 16. Further, the reinforcement 11 forms a gap with respect to the gap forming portion 13 of the inner panel 2 and faces each other, and the details of the cross-sectional shape will be described later.
In the door 1, a checker case 8 is arranged on the case mounting portion 16 of the reinforcement 11, and the checker case 8 has a rectangular box shape. Flange portions 8a (shown in FIG. 5) formed at the top and bottom of the checker case 8 are superposed on the case attachment portion 16 and fastened by bolts (not shown) through bolt holes 17 penetrating the case attachment portions 12 and 16. Has been done.

A checker hole 18 is provided through the case attachment portions 12 and 16 of the inner panel 2 and the reinforcement 11, and one end of a checker arm 9 is inserted into the checker hole 18 from the front to pass through the checker case 8 and stop. 9a is fixed. Although not shown, the other end of the checker arm 9 is pivotally supported by a pillar on the vehicle body side, and as a result, the checker case 8 is connected to the vehicle body side via the checker arm 9. When the door 1 is opened around the hinge 6, the checker arm 9 is pulled out forward from the checker case 8, and the stopper 9a is hooked on the checker case 8 to open the door 1 at a predetermined opening. Regulate with.

As can be seen from FIGS. 3 and 4, the checker case 8 is fixed on the case mounting portion 16 of the reinforcement 11 at a position close to the step portion 14 of the inner panel 2, and the end surface of the checker case 8 on the outer side of the vehicle compartment. Substantially coincides with the step portion 14 in the vehicle interior and exterior directions. Then, the reinforcement 11 is separated from the inner panel 2 with the step portion 14 of the inner panel 2 as a starting point, and linearly extends toward the outside (front side) of the vehicle interior. As a result, the reinforcement 11 has an oblique cross-sectional shape that gradually approaches the gap forming portion 13 of the inner panel 2 toward the outer side of the vehicle cabin while narrowing the gap, and a portion of this cross-sectional shape is referred to as a diagonal portion 20. The inclined portion 20 of the reinforcement 11 is continuous with the parallel portion 21 at a position where a gap is left between the reinforcement portion 11 and the gap forming portion 13. The parallel portion 21 is parallel to the gap forming portion 13 and is located outside the vehicle interior. It is extended and is continuous with the end portion 11b.

The extending direction of the slanted portion 20 of the reinforcement 11 (that is, the angle of the slanted portion 20) is slanted via the checker arm 9 and the checker case 8 when the opening operation of the door 1 is restricted by the door checker 7. It is set in a direction along the force received by the shaped portion 20, and details thereof will be described later.
As described with reference to FIGS. 3 and 4, the cross-sectional shape of the front surface 2b of the inner panel 2 including the case mounting portion 12, the step portion 14, and the gap forming portion 13 is formed over a predetermined area in the vertical direction. For this reason, on the outer side of the vehicle interior of the checker case 8, there is a substantially planar gap forming portion 13 of the inner panel 2 over a predetermined area in the vertical direction. Then, as shown in FIG. 5, the cross-sectional shape of the reinforcement 11 including the case attachment portion 16, the inclined portion 20 and the parallel portion 21 corresponds to the region of the gap forming portion 13 having the substantially flat shape in the vertical direction. Is formed over a predetermined area of. The setting of such a region is to make up for the insufficient rigidity of the gap forming portion 13 having a substantially flat shape, and the details thereof will be described later.

Next, in the vehicle door structure configured as described above, a situation of generation of force when the opening operation of the door 1 is restricted by the door checker 7 will be described.
The angle of the checker arm 9 with respect to the checker case 8 changes according to the opening degree of the door 1, and the checker arm 9 reaches the angle shown in FIG. 3 at the fully opened position of the door 1. When the stopper 9a of the checker arm 9 is hooked on the checker case 8 to restrict the opening operation of the door 1, a pulling force indicated by an arrow F1 in FIG. 3 acts on the checker case 8 via the checker arm 9. .. This tensile force is transmitted to the reinforcement 11 side through the contact surface between the checker case 8 and the reinforcement 11, and the transmitted tensile force is counteracted in cooperation with the reinforcement 11 and the front surface 2b of the inner panel 2. Thus, further pulling out of the checker arm 9 is restricted to keep the door 1 in the fully open position.

As described above, the transmission of the pulling force from the checker case 8 to the reinforcement 11 is performed through the contact surfaces of each other, but due to the direction of the pulling force described above, it is not uniform in the vehicle interior and exterior directions. Specifically, since the pulling force from the checker arm 9 is directed slightly toward the front of the vehicle toward the outside of the vehicle, the reinforcement 11 pulls the contact surface of the checker case 8 toward the front outside of the vehicle, which is larger than the inside of the vehicle. The force is transmitted, and due to this tensile force, the oblique portion 20 of the reinforcement 11 adjacent to the checker case 8 has a force indicated by an arrow F2 in FIG. 3 along the extending direction thereof, that is, a so-called in-plane compression. Power acts.

The opening degree of the door 1 at the fully open position is known in advance based on the length setting of the checker arm 9 and the like, and the compression that the oblique portion 20 of the reinforcement 11 receives due to the pulling force when the opening operation of the door 1 is restricted. The direction of force can also be specified. Therefore, in the present embodiment, the cross-sectional shape of the slant portion 20, more specifically, the extending direction of the slant portion 20, is set so as to be along the direction of the compressive force that the slant portion 20 receives. Therefore, the compressive force transmitted due to the tensile force reliably acts on the oblique portion 20 in the in-plane direction, and the rigidity of the oblique portion 20 is maximized against the compressive force. Therefore, the deformation of the reinforcement 11 when the door 1 receives an overrun input is suppressed, and the deformation of the front surface 2b of the inner panel 2 is also effectively suppressed. As a result, it is possible to suppress the forward protruding deformation of the case mounting portion 12 of the inner panel 2, and thereby to improve the commercialability of the vehicle.

The cross-sectional shape of the reinforcement 11 (particularly the slanted portion 20) that exhibits the above-described effects is formed in a region corresponding to the substantially planar gap forming portion 13 of the inner panel 2 in the vertical direction. Although the tensile force is locally transmitted to the reinforcement 11 via the contact surface with the checker case 8, the tensile force exerts an influence on the front surface 2b of the inner panel 2 not only in the area corresponding to the contact surface but also in the vertical direction. Since the gap forming portion 13 which extends over a wider area in the direction and which is adjacent to the case attaching portion 12 via the step portion 14 has a planar shape, it is easily deformed. In the present embodiment, since the cross-sectional shape of the reinforcement 11 is set in the vertical direction so as to correspond to the gap forming portion 13 having such a mechanically weak cross-sectional shape, only the protruding deformation of the case mounting portion 12 described above is performed. In addition, the deformation of the gap forming portion 13 can be suppressed.

Further, in the present embodiment, the end surface of the checker case 8 on the outer side of the vehicle compartment substantially coincides with the stepped portion 14 of the inner panel 2 in the vehicle inner-outer direction, and the inclined portion 20 of the reinforcement 11 starts from the stepped portion 14. It is extended away from the panel 2. Therefore, the tensile force transmitted from the checker case 8 to the reinforcement 11 directly acts on the oblique portion 20 as a compressive force in the in-plane direction, and the oblique portion 20 opposes the compressive force to prevent deformation. Play.

For example, when the end surface of the checker case 8 on the outer side of the vehicle compartment is located away from the stepped portion 14 of the inner panel 2 toward the vehicle interior side, or the position separated from the stepped portion 14 to the outer side of the vehicle interior is the reinforcement 11. In the case where the slanted portion 20 is extended, a flat area that does not extend in the in-plane direction is formed between the checker case 8 and the slanted portion 20, and the flat area is early. The inner panel 2 also deforms due to deformation. In the present embodiment, since the oblique portion 20 directly receives the pulling force from the checker case 8, such a problem is prevented in advance, and the projecting deformation of the case mounting portion 12 of the inner panel 2 and the gap forming portion 13 are prevented. Can be more reliably suppressed.

Although the description of the embodiment has been completed, the aspects of the present invention are not limited to this embodiment. For example, in the above-described embodiment, the left door 1 that can be opened and closed centering on the front hinge 6 is embodied, but the type of door is not limited to this and can be arbitrarily changed. For example, it may be applied to a hinged door for a rear gate, or may be applied to a door that can be opened and closed centered on a rear hinge.

Further, in the above embodiment, the extending direction of the oblique portion 20 is set so as to follow the direction of the compressive force received by the oblique portion 20 of the reinforcement 11, but the extending direction of the oblique portion 20 with respect to the compressive force is set. May be slightly different. Even in this case, since the compressive force acting on the slanted portion 20 acts substantially in the in-plane direction, it is possible to obtain an effect comparable to that of the above embodiment.
Further, in the above-described embodiment, the slanted portion 20 of the reinforcement 11 is formed in the region corresponding to the gap forming portion 13 of the inner panel 2 in the vertical direction, but the invention is not necessarily limited to this. For example, the inclined portion 20 may be formed only in the region corresponding to the checker case 8 in the vertical direction, and even in this case, the projecting deformation of the case mounting portion 12 of the inner panel 2 can be suppressed.

Further, in the above-described embodiment, the end surface of the checker case 8 on the outer side of the vehicle compartment is made to substantially coincide with the stepped portion 14 of the inner panel 2 in the vehicle inner-outer direction, and the reinforcement 11 is separated from the inner panel 2 from the stepped portion 14 as a starting point. The slanted portion 20 is provided so as to extend, but it is not necessarily limited to this. For example, the end surface of the checker case 8 on the outer side of the vehicle compartment may be slightly separated from the stepped portion 14 toward the inner side of the vehicle interior. 20 may be extended. In these cases, a flat area that does not extend in the in-plane direction is formed between the checker case 8 and the slanted portion 20, but since the length in the vehicle interior and exterior directions is short, the effect is comparable to the above-described embodiment. Can be obtained.

1 Door 2 Inner Panel 3 Outer Panel 6 Hinge 7 Door Checker 8 Checker Case 9 Checker Arm 11 Reinforce 12,16 Case Mounting Part 13 Gap Forming Part 14 Step Part 20 Oblique Part

Claims (2)

A door is formed together with the outer panel, and one side surface to which a hinge for opening and closing the door is fixed is divided into a case attachment portion on the vehicle interior side and a gap forming portion on the vehicle exterior side, and the case attachment portion is connected to the case attachment portion via a step. On the other hand, an inner panel in which the gap forming portion is located on one side,
Wherein in the door is disposed opposite to one side surface of the inner panel, before Symbol Rutotomoni of having a case mounting portion superposed with respect to the case mounting portion of the inner panel, while with respect to the gap forming portion of the inner panel gap And a reinforcement that has been extended to the outside of the passenger compartment .
It is composed of a checker case fixed on the case attachment part of the reinforcement in the door and a checker arm connecting the checker case and the vehicle body side, and a predetermined opening operation of the door is performed through the checker arm. In a vehicle door structure that includes a door checker that is regulated by degrees,
An inclined portion that is separated from the inner panel from the step portion of the inner panel , extends linearly toward the outside and one side of the vehicle compartment, and gradually approaches the gap forming portion in the reinforcement. to form,
A door structure for a vehicle , wherein the checker case is fixed to a case attachment portion of the reinforcement at a position where an end surface of the checker case outside the vehicle compartment substantially coincides with a stepped portion of the inner panel . The slant portion of the reinforcement is extended in a direction along the force received by the slant portion due to the pulling force from the checker arm when the door checker restricts the opening operation of the door. The vehicle door structure according to claim 1, wherein:

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