JP2019217939A - Door structure - Google Patents

Abstract

To provide a door structure which can reinforce a character line formed at a door outer panel with a compact structure.SOLUTION: A door structure 1 includes a door body 2 having a door inner panel 21 and a door outer panel 22 formed with a character line 23. The door structure 1 includes: a first door reinforcement member 31 and a second door reinforcement member 32 which are disposed between the door inner panel 21 and the door outer panel 22 so as to sandwich the character line 23; and a character line reinforcement member 40 which bridges the first door reinforcement member 31 and the second door reinforcement member 32 so as to intersect with the character line 23. The character line reinforcement member 40 has: a first fixed part 41 fixed to the first door reinforcement member 31; a second fixed part 42 fixed to the second door reinforcement member 32; and an intermediate fixed part 43 fixed to at least one of the character line 23 and an area near the character line 23.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a door structure having a door outer panel on which a character line is formed.

  As a door structure of a side door of an automobile, a vehicle door structure of Patent Document 1 is known. This vehicle door structure includes a door panel body constituting a lower half thereof, and a door frame attached to an upper portion of the door panel body. The door panel body has a door outer panel on the outside of the vehicle and a door inner panel on the inside of the vehicle. An impact beam extending in the front-rear direction of the vehicle and reinforcing the door outer panel is interposed below the vehicle between the two panels, and a belt line inner reinforcement extending in the front-rear direction of the vehicle along the belt line is provided on the upper side. Is intervened. The belt line inner reinforcement is connected to a mirror bracket interposed between the panels on the front side of the vehicle and a lock reinforcement interposed on the rear side of the vehicle.

JP 2008-56025 A

  In a door structure in which a character line is formed on a door outer panel, an unusual noise may occur when the door is opened and closed. This is because the character line is usually formed of a groove, a ridge, or the like, and the door outer panel is deformed as the character line is deformed when the door is opened or closed. The deformation of the character line includes, for example, a change in the inner angle of two surfaces adjacent to each other across the bent portion of the character line. In order to suppress the deformation of the door outer panel, a reinforcement for reinforcing the character line may be provided in the vicinity of the character line inside the vehicle of the door outer panel. However, in order to effectively suppress the deformation of the door outer panel, it is necessary to increase the size and thickness of the reinforcement to some extent, which causes an increase in weight.

  An object of the present invention is to provide a door structure capable of reinforcing a character line formed on a door outer panel with a compact configuration.

The door structure according to one embodiment of the present invention includes:
A door structure including a door body having a door inner panel and a door outer panel formed with a character line,
A first door reinforcing member and a second door reinforcing member interposed so as to sandwich the character line between the door inner panel and the door outer panel,
A character line reinforcing member bridging the first door reinforcing member and the second door reinforcing member so as to cross the character line,
The character line reinforcing member,
A first fixing portion fixed to the first door reinforcing member,
A second fixing portion fixed to the second door reinforcing member,
An intermediate fixing portion fixed to at least one of the character line and the vicinity of the character line.

  The above door structure can reinforce the character line formed on the door outer panel with a compact configuration. The character line and the character line reinforcing member fixed to at least one of the vicinity of the character line bridge the first door reinforcing member and the second door reinforcing member, so that the character line reinforcing member itself does not need to be enlarged. This is because it is easy to increase the rigidity of the reinforcing member. Therefore, the deformation of the character line can be effectively suppressed when the door is opened and closed, and the deformation of the door outer panel can be effectively suppressed. Therefore, it is easy to suppress the generation of abnormal noise when the door is opened and closed. As described above, since the character line reinforcing member itself is easily made compact, it is easy to reduce the weight, reduce the cost, and improve the productivity.

It is a perspective view showing the outline of the door structure concerning Embodiment 1. It is a side view which shows the outline of the state which removed the inner panel of the door structure which concerns on Embodiment 1. It is sectional drawing which shows the outline of the door structure cut | disconnected by the cutting line (III)-(III) of FIG.

  First Embodiment A door structure according to a first embodiment of the present invention will be described below with reference to FIGS. The same reference numerals in the drawings indicate the same names. In the figure, “FR” indicates the front of the vehicle, “RR” indicates the rear, “LH” indicates the left side, “RH” indicates the right side, “UP” indicates the upper side, and “LWR” indicates the lower side.

<< Embodiment 1 >>
[Door structure]
The door structure 1 according to the first embodiment includes a door body 2 having a door inner panel 21 and a door outer panel 22 (FIG. 1). A character line 23 is formed on the door outer panel 22. A first door reinforcement member 31 and a second door reinforcement member 32 are interposed between the panels 21 and 22 in the door structure 1 so as to sandwich the character line 23 (FIGS. 2 and 3). One of the features of the door structure 1 is that, while crossing the character line 23 and bridging the first door reinforcing member 31 and the second door reinforcing member 32, the character line reinforcing member 50 fixed to the character line 23 is provided. The point is to prepare. Hereinafter, each configuration will be described in detail. In this example, a case where the door structure 1 is provided in a front side door 10 of a vehicle will be described as an example.

[Door body]
The door body 2 opens and closes a door opening (not shown) of the vehicle (FIG. 1). The door main body 2 is provided on the front side of the vehicle on both left and right sides of the vehicle. The door body 2 is of a hinge type, and is rotatably fixed to a portion (for example, a front pillar lower) forming a front side edge of a door opening in a vehicle via the hinge (both are not shown). FIG. 1 shows a door body 2 on the right front side of the vehicle. The door main body 2 has a door inner panel 21 (FIGS. 1 and 3) disposed inside the vehicle and a door outer panel 22 (FIGS. 1 to 3) disposed outside the vehicle. The door outer panel 22 is curved in an arc shape such that the outside of the vehicle is convex from one end to the other end in the height direction (FIG. 3). The height direction of the door outer panel 22 refers to the vertical direction of the vehicle. A character line 23 (design line) is formed on the door outer panel 22.

(Character line)
The character line 23 enhances the design of the door outer panel 22. In this example, the character line 23 is formed of a groove that is recessed inside the door outer panel 22 (FIGS. 1 and 3). However, the character line 23 is formed of a step or a ridge that protrudes outside the door outer panel 22 outside the vehicle. Is also good. In this example, the cross-sectional shape of the character line 23 (groove) is a trapezoid in which the opening side of the groove is wider than the bottom side (FIG. 3). The number of character lines 23 is singular in this example, but may be plural. The character line 23 has a portion sandwiched between a first door reinforcing member 31 and a second door reinforcing member 32 described later (FIG. 2). As long as it has a portion sandwiched between the door reinforcing members 31 and 32, the character line 23 can be appropriately selected irrespective of the form (formed location, planar shape, length, and the like). The plane shape of the character line 23 is a shape when the door outer panel 22 is viewed from the outside of the vehicle.

  In this example, the character line 23 is formed substantially linearly at substantially the center in the height direction of the door outer panel 22 along the width direction of the door outer panel 22. The length (formation area) of the character line 23 is a length (area) covering substantially the entire length of the door outer panel 22 in the width direction. The width direction of the door outer panel 22 is a direction along the belt line 11, and in the case of the front side door 10 as in this example, refers to the front-back direction of the vehicle. The character line 23 is formed in a straight line over the entire length of the character line 23, but may have a curved portion partially formed in a curved shape or a stepped portion formed in a stepped shape. Note that the character line 23 may be formed linearly along a direction intersecting the width direction of the door outer panel 22.

[First door reinforcement member / Second door reinforcement member]
The first door reinforcing member 31 and the second door reinforcing member 32 have a function of increasing the rigidity of the door body 2 (FIGS. 2 and 3). The first door reinforcing member 31 and the second door reinforcing member 32 are interposed between the panels 21 and 22 so as to sandwich the character line 23 therebetween. The types of the first door reinforcing member 31 and the second door reinforcing member 32 can be appropriately selected according to the location where the character line 23 is formed, for example, an impact bar 41, a belt line outer reinforcement 42, a tension rigid reinforcement 43, and the like. , Hinge reinforcement 44, and lock reinforcement 45.

(Impact bar)
The impact bar 41 increases the rigidity of the door body 2 against a side collision (FIGS. 2 and 3). The impact bar 41 is a long member extending in the width direction of the door main body 2 (the front-rear direction of the vehicle) (FIG. 2), and is made of a plate in this example (FIG. 3). The cross-sectional shape of the impact bar 41 can be appropriately selected. In this example, the cross-sectional shape of the impact bar 41 is alternately continuous. The location of the impact bar 41 is below the door outer panel 22, and in this example, below the character line 23 (FIGS. 2 and 3). One end (front end) of the impact bar 41 in the longitudinal direction is fixed to the hinge reinforcement 44, and the other end (rear end) is fixed to the door outer panel 22 itself (FIG. 2). An appropriate portion of the impact bar 41 at an intermediate portion between one end and the other end is fixed to the door outer panel 22 itself. The fixing of the one end and the other end can be performed, for example, via a spot welded portion (not shown). The fixing of the intermediate portion can be performed via an adhesive 60 having elasticity such as a mastic adhesive (FIG. 3). The adhesive in the following description includes a mastic adhesive.

(Beltline outer reinforcement)
The belt line outer reinforcement 42 increases the rigidity of the door body 2, particularly the rigidity of the belt line 11 of the door outer panel 22 (FIG. 2). The belt line outer reinforcement 42 is a long member extending in the width direction of the door body 2 (the front-rear direction of the vehicle) along the belt line 11 (FIG. 2), and is made of a plate material in this example (FIG. 2). (Fig. 3). The cross-sectional shape of the belt line outer reinforcement 42 can be appropriately selected, and is a hat shape in this example (FIG. 2). The location of the belt line outer reinforcement 42 is above the door outer panel 22 (upper end of the door outer panel 22), and in this example, above the character line 23 (FIGS. 2 and 3). The belt line outer reinforcement 42 is provided so as to bridge the hinge reinforcement 44 and the lock reinforcement 45 (FIG. 2). One end (front end) of the belt line outer reinforcement 42 in the longitudinal direction is fixed to the hinge reinforcement 44, and the other end (rear end) is fixed to the lock reinforcement 45. An appropriate portion of the belt line outer reinforcement 42 at an intermediate portion between one end and the other end is fixed to the door outer panel 22. These can be fixed in the same manner as the impact bar 41, the one end and the other end can be fixed via, for example, a spot welded portion (not shown), and the intermediate portion can be fixed using, for example, an adhesive. (Not shown).

(Tension rigidity reinforcement)
The tension rigidity reinforcement 43 increases the rigidity of the door outer panel 22 (door main body 2) (FIGS. 2 and 3). The tension rigid reinforcement 43 is a long member extending in the width direction of the door main body 2 (the front-rear direction of the vehicle) (FIG. 2), and is formed of a plate in this example (FIG. 3). The cross-sectional shape of the tension and rigidity reinforcement 43 can be appropriately selected, and in this example, is a hat shape. In this example, the arrangement location of the tension rigidity reinforcement 43 is above the character line 23 on the door outer panel 22, and is between the character line 23 and the belt line outer reinforcement 42 (FIGS. 2 and 3). One end (front end) of the tension rigid reinforcement 43 in the longitudinal direction is fixed to the hinge reinforcement 44, and the other end (rear end) is fixed to the door outer panel 22 itself (FIG. 2). An appropriate portion of the tension rigid reinforcement 43 at an intermediate portion between one end and the other end is fixed to the door outer panel 22 itself. These can be fixed in the same manner as the impact bar 41, the one end and the other end can be fixed, for example, via a spot welded portion (not shown), and the intermediate portion can be fixed, for example, by bonding. This can be performed via an agent (not shown).

(Hinge reinforcement)
The hinge reinforcement 44 (shown by a two-dot chain line on the left side of the paper surface of FIG. 2) supports a hinge (not shown) that increases the rigidity of the front side of the door main body 2 and rotatably fixes the door main body 2. The hinge reinforcement 44 is a long member extending in the height direction of the door body 2 (in the vertical direction of the vehicle), and is provided from above the belt line 11 to below at the front end of the door body 2 in this example. ing. The location of the hinge reinforcement 44 is on the front side of the character line 23 in the door outer panel 22. The hinge reinforcement 44 can be fixed to the door main body 2 through, for example, a spot welded portion (not shown).

(Rock reinforcement)
The lock reinforcement 45 (shown by a two-dot chain line on the right side of the paper of FIG. 2) increases the rigidity on the rear side of the door body 2 and locks the door body 2 when the door body 2 closes the door opening. (Not shown). The lock reinforcement 45 is a member extending in the height direction of the door main body 2 (vertical direction of the vehicle), and in the present example, at the rear end of the door main body 2, substantially centrally downward from the belt line 11 in the height direction. It is provided so as to span. The position where the lock reinforcement 45 is arranged is above the character line 23 in the door outer panel 22. The lock reinforcement 45 can be fixed to the door main body 2 via, for example, a spot welded portion (not shown).

In this example, the first door reinforcing member 31 is configured by an impact bar 41, and the second door reinforcing member 32 is configured by a belt line outer reinforcement 42. The first door reinforcing member 31 and the second door reinforcing member 32 also depend on the location of the character line 23 and the size of each of the reinforcing members 41 to 45, but the following combinations (1) to (9) It can be either.
(1) Impact bar 41 and tension rigid reinforcement 43
(2) Impact bar 41 and hinge reinforcement 44
(3) Impact bar 41 and lock reinforcement 45
(4) Belt line outer reinforcement 42 and tension rigid reinforcement 43
(5) Belt line outer reinforcement 42 and hinge reinforcement 44
(6) Belt line outer reinforcement 42 and lock reinforcement 45
(7) Tension rigidity reinforcement 43 and hinge reinforcement 44
(8) Tension rigidity reinforcement 43 and lock reinforcement 45
(9) Hinge reinforcement 44 and lock reinforcement 45

[Character line reinforcement members]
The character line reinforcing member 50 reinforces the character line 23. The character line reinforcing member 50 bridges the first door reinforcing member 31 and the second door reinforcing member 32 so as to cross the character line 23. Fixed. Thereby, the deformation of the character line 23 due to the impact when the door body 2 is opened and closed can be effectively suppressed, and the deformation of the door outer panel 22 can be effectively suppressed. Therefore, generation of abnormal noise due to deformation of the door outer panel 22 can be prevented. This is because the rigidity of the character line reinforcing member 50 is easily increased by the character line reinforcing member 50 bridging the first door reinforcing member 31 and the second door reinforcing member 32. Therefore, it is easy to reduce the size of the character line reinforcing member 50 itself. The character line reinforcing member 50 has a first fixing portion 51, a second fixing portion 52, and an intermediate fixing portion 53, which will be described later.

  The character line reinforcing member 50 is a long member (FIGS. 2 and 3), and is made of a plate in this example (FIG. 3). The cross-sectional shape of the character line reinforcing member 50 can be appropriately selected, and is a hat shape in this example (FIG. 2). In this example, the location of the character line reinforcing member 50 is substantially at the center in the width direction of the door outer panel 22 (the front-rear direction of the vehicle). It is arranged along. The vertical cross-sectional shape of the character line reinforcing member 50 is preferably a shape along the door outer panel 22, and in this example, is a substantially arc shape curved along the curved shape of the door outer panel 22 (FIG. 3). Thereby, the character line reinforcing member 50 can be easily fitted along the door outer panel 22 from one end to the other end in the longitudinal direction, so that the character line reinforcing member 50 can be easily fixed to the door outer panel 22. The number of character line reinforcing members 50 is one in this example, but may be plural.

(First fixed part, second fixed part)
The first fixing portion 51 is provided at one end of the character line reinforcing member 50 in the longitudinal direction, and is fixed to the first door reinforcing member 31 (the impact bar 41 in this example). The second fixing portion 52 is provided at the other end in the longitudinal direction of the character line reinforcing member 50, and is fixed to the second door reinforcing member 32 (in this example, the belt line outer reinforcement 42).

(Intermediate fixing part)
The intermediate fixing portion 53 is provided between the first fixing portion 51 and the second fixing portion 52, and is fixed to at least one of the character line 23 and the vicinity of the character line 23. The vicinity of the character line 23 is a range in which the deformation of the character line 23 can be suppressed. For example, the width of the character line 23 and the width of the character line 23 on both sides in the width direction of the character line 23 (direction orthogonal to the longitudinal direction). The range up to the same length. In the case where the character line 23 is formed of a groove that is depressed inside the vehicle as in this example, the intermediate fixing portion 53 may be provided at a position corresponding to the bottom surface of the groove in the character line reinforcing member 50. When the character line 23 is formed of a ridge protruding to the outside of the vehicle, the intermediate fixing portion 53 is formed in the character line reinforcing member 50 in the vicinity of an opening formed inside the door outer panel 22 by the ridge. May be provided at a location corresponding to. In this example, the intermediate fixing portion 53 is fixed to both the character line 23 itself and the vicinity (lower side) of the character line 23.

  In a region between the adjacent fixing portions of the character line reinforcing member 50, an appropriate position is fixed to the door outer panel 22 or the tension rigid reinforcement 43. Since the character line reinforcing member 50 has an arc shape as described above (FIG. 3), it is easy to fix the intermediate fixing portion 53 and the area between the fixing portions to the character line 23 and the door outer panel 22.

(Fixed method)
The fixing of the first fixing part 51 and the second fixing part 52 can be performed, for example, via a welded part 70 spot-welded, and the fixing of the intermediate fixing part 53 can be performed, for example, via an adhesive 60 (FIG. 3). The fixing to the door outer panel 22 in the region between the fixing portions can be performed, for example, with the adhesive 60, and the fixing to the tension rigid reinforcement 43 in the region between the fixing portions can be, for example, spot welding. This can be done through the weld 70 (FIG. 3).

(Function and effect)
The door structure 1 of the first embodiment can reinforce the character line 23 formed on the door outer panel 22 with a compact configuration. The character line reinforcing member 50 fixed to at least one of the character line 23 and the vicinity of the character line 23 bridges the first door reinforcing member 31 and the second door reinforcing member 32, thereby increasing the size of the character line reinforcing member 50 itself. This is because it is easy to increase the rigidity of the character line reinforcing member 50 even if it is not changed. Particularly, since the area between the fixed portions of the character line reinforcing member 50 is stretched and welded to the rigid reinforcement 43 and bonded to the door outer panel 22, the rigidity of the character line reinforcing member 50 is further increased. Easy to increase. Therefore, the deformation of the character line 23 can be effectively suppressed when the door is opened and closed, and the deformation of the door outer panel 22 can be effectively suppressed. Therefore, it is easy to suppress the generation of abnormal noise when the door is opened and closed. In addition, since the character line reinforcing member 50 itself is easily made compact, it is easy to reduce the weight, reduce the cost, and improve the productivity.

  The present invention is not limited to these examples, but is indicated by the appended claims, and is intended to include all modifications within the scope and meaning equivalent to the appended claims.

  For example, when the character line 23 is formed along the width direction as described above, the character line reinforcing member 50 diagonally bridges the lower side of the hinge reinforcement 44 and the lock reinforcement 45 to form a character line. The middle of the reinforcing member 50 may be fixed to at least one of the character line 23 and the vicinity of the character line 23. That is, each of the first door reinforcing member 31 and the second door reinforcing member 32 includes a hinge reinforcement 44 and a lock reinforcement 45, respectively.

  When the character line 23 is formed along the height direction, the character line reinforcing member 50 bridges the hinge reinforcement 44 and the lock reinforcement 45 along the width direction, and is in the middle of the character line reinforcing member 50. May be fixed to at least one of the character line 23 and the vicinity of the character line 23.

  When the character line 23 is formed along the diagonal direction, the character line reinforcing member 50 may bridge the impact bar 41 and the belt line outer reinforcement 42 in the height direction, or may be connected to the hinge reinforcement 44. The lock reinforcement 45 may be bridged in the width direction. Regardless of which direction the character line reinforcing member 50 is bridged, the middle of the character line reinforcing member 50 is fixed to at least one of the character line 23 and the vicinity of the character line 23.

  The door structure 1 can be provided in a rear side door or a back door instead of the front side door 10. In a mode in which the door structure 1 is provided in the back door, the width direction of the door body 2 (the door outer panel 22) is the lateral direction of the vehicle in the door body (the door outer panel).

DESCRIPTION OF SYMBOLS 1 Door structure 10 Front side door 11 Belt line 2 Door main body 21 Door inner panel 22 Door outer panel 23 Character line 31 First door reinforcing member 32 Second door reinforcing member 41 Impact bar 42 Belt line outer reinforcement 43 Tension rigid reinforcement 44 Hinge reinforcement 45 Lock reinforcement 50 Character line reinforcing member 51 First fixing part 52 Second fixing part 53 Intermediate fixing part 60 Adhesive 70 Welding part

Claims (1)

A door structure including a door body having a door inner panel and a door outer panel formed with a character line,
A first door reinforcing member and a second door reinforcing member interposed so as to sandwich the character line between the door inner panel and the door outer panel,
A character line reinforcing member bridging the first door reinforcing member and the second door reinforcing member so as to cross the character line,
The character line reinforcing member,
A first fixing portion fixed to the first door reinforcing member,
A second fixing portion fixed to the second door reinforcing member,
A door structure having the character line and an intermediate fixing portion fixed to at least one of the vicinity of the character line;

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