JP2016088268A - Vehicular door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vehicle door structure capable of suppressing deformation of a resin door panel due to a load from a door glass. SOLUTION: A door structure 10 includes a guide rail 28 for supporting a door glass 18, a resin-made Ino 20 in which upper and lower end sides of the guide rail 28 are fixed by an upper fixing portion 20SU and a lower fixing portion 20SL, and an inner portion. The panel 20 includes a reinforcing portion 34 provided in a continuous range that overlaps the upper fixing portion 20SU and the lower fixing portion 20SL in the vehicle vertical direction. [Selection diagram] Fig. 3

Description

  The present invention relates to a vehicle door structure.

  A door structure is known in which a guide rail of a window regulator is lifted up and down along a door sash and attached to the inner panel while being shifted to the inner panel side with respect to a virtual locus of the door glass (for example, Patent Document 1). reference).

JP 2014-46871 A

  By the way, when the material of the door panel is changed from steel to a resin material, deformation of the door panel tends to be a problem due to the fact that the elastic modulus of the resin is lower than the elastic modulus of the steel. In particular, the deformation of the resin door panel is larger than the deformation of the steel door panel with respect to the load input from the door glass to the door panel. Such deformation of the door panel also causes, for example, vibration of the door glass, and there is room for improvement from the viewpoint of suppressing deformation of the door panel.

  An object of the present invention is to obtain a vehicle door structure capable of suppressing deformation of a resin door panel due to a load from a door glass.

  The vehicle door structure according to the first aspect of the present invention is a guide member that is elongated in the vehicle vertical direction, guides the door glass when moving up and down, and the upper and lower ends of the guide member are an upper fixing portion and a lower fixing portion. A fixed resin door panel; and a reinforcing portion provided in a continuous range that wraps to the upper fixing portion and the lower fixing portion in the vehicle vertical direction of the door panel.

  In this vehicle door structure, the load input to the door glass is transmitted to the door panel via the upper fixing portion and the lower fixing portion of the guide member. Here, the reinforcement part is provided in the continuous range which wraps to an upper fixing part and a lower fixing part in the vehicle up-down direction in a door panel. For this reason, compared with the structure which is not provided with a reinforcement part, a deformation | transformation of the door panel by the load input via a guide member from a door glass is suppressed.

  Thus, in the vehicle door structure according to the first aspect, deformation of the resin door panel due to the load from the door glass can be suppressed.

  A vehicle door structure according to a second aspect of the present invention is the structure of the first aspect, wherein the door panel is supported by the vehicle body via a hinge fixed to one end side in the vehicle front-rear direction to form a side door. The reinforcing portion includes at least a portion provided in a continuous range that wraps on the upper fixing portion and the lower fixing portion in the vehicle vertical direction on the other end side of the door panel in the vehicle front-rear direction.

  In this door structure for a vehicle, at least a part of the reinforcing portion is formed on the upper fixing portion and the lower fixing portion on the other end side opposite to the hinge side (one end side) in the vehicle front-rear direction in the door panel constituting the side door. It is provided in a continuous range that wraps. In other words, since it is on the side opposite to the connection side to the vehicle body via the hinge, the door panel is connected from the portion where the deformation amount due to the load input to the door glass tends to increase to the connection site to the vehicle body. It is reinforced at the reinforcement. For this reason, the deformation amount of a door panel is restrained small compared with the structure which reinforced only the part of the one end side (hinge side) in a door panel, for example.

  A vehicle door structure according to a third aspect of the present invention is the vehicle door structure according to the second aspect, wherein the reinforcing portion is in a continuous range from the upper end portion on the other end side of the door panel in the vehicle front-rear direction to the fixed portion of the hinge. Is provided.

  In this vehicle door structure, a reinforcing portion including a portion provided in a continuous range that wraps to the upper fixing portion and the lower fixing portion on the other end side in the vehicle front-rear direction of the door panel is a hinge portion that is one end side of the door panel. It reaches the fixed part. In other words, since it is on the side opposite to the connection side to the vehicle body via the hinge, the door panel is connected from the portion where the deformation amount due to the load input to the door glass tends to increase to the connection site to the vehicle body. It is reinforced at the reinforcement. For this reason, for example, the deformation amount of the door panel can be suppressed to be small as compared with a configuration in which only the other end portion of the door panel is reinforced.

  According to a fourth aspect of the present invention, there is provided the vehicle door structure according to the second or third aspect, wherein the reinforcing portion is the other end side of the door panel in the vehicle front-rear direction and the upper fixing portion in the vehicle vertical direction. And a first reinforcing portion provided in a continuous range that wraps around the lower fixing portion, and a second reinforcing portion provided in a range from the lower end portion of the first reinforcing portion to the fixing portion of the hinge. It is configured.

  In this vehicle door structure, the first reinforcing portion that reinforces the door panel in a continuous range that wraps to the upper fixing portion and the lower fixing portion in the vehicle vertical direction is the hinge fixing portion in the door panel via the second reinforcing portion, that is, the vehicle body It is connected to the connection site. For this reason, compared with the structure where a reinforcement part does not contain a 2nd reinforcement part, for example, the deformation amount of the lower end side of a 1st reinforcement part, ie, a door panel, is suppressed small by a 2nd reinforcement part.

  According to a fifth aspect of the present invention, in the vehicle door structure according to the third or fourth aspect, the reinforcing portion is provided along a peripheral edge portion of the door panel.

  In this vehicle door structure, reinforcing portions (first reinforcing portion and second reinforcing portion) are formed along the periphery of the door panel. For this reason, the deformation amount of the door panel can be suppressed to be small as compared with the configuration in which only the inner side of the door panel with respect to the peripheral edge is reinforced.

  According to a sixth aspect of the present invention, in the vehicle door structure according to the fifth aspect, the door panel includes a side wall in which the guide member is fixed by the upper fixing portion and the lower fixing portion, and a peripheral edge of the side wall. And a peripheral wall that is erected outward in the vehicle width direction and to which the hinge is fixed. At least a part of the reinforcing portion is provided on the peripheral wall.

  In this vehicle door structure, the reinforcing portion is provided on the peripheral wall that is erected from the side wall to which a load is input via the upper fixing portion and the lower fixing portion of the guide member. That is, since the side wall which receives the bending load to the side wall as a shear load (axial force) is reinforced, the deformation amount of the door panel can be suppressed smaller than the configuration in which only the side wall is reinforced.

  According to a seventh aspect of the present invention, in the vehicle door structure according to the sixth aspect, the reinforcing portion is configured such that the thickness of the peripheral wall is larger than the thickness of the side wall.

  In this vehicle door structure, since the thickness of the peripheral wall is larger than the thickness of the side wall, the peripheral wall is effectively reinforced in the shear direction.

  As described above, the vehicle door structure according to the present invention has an excellent effect that the deformation of the resin door panel due to the load from the door glass can be suppressed.

It is the side view which removed the outer panel of the side door to which the door structure concerning the embodiment of the present invention was applied, and was seen. It is a plane sectional view showing the door main part and reinforcement part of the side door to which the door structure concerning the embodiment of the present invention was applied. It is a figure which shows typically the principal part of the door structure which concerns on embodiment of this invention, Comprising: (A) is a sectional side view, (B) is a back sectional view. It is a perspective view which expands and shows a part of inner panel of the side door to which the door structure concerning the embodiment of the present invention was applied. It is a diagram which shows the deformation | transformation mode at the time of seeing from the back side of the inner panel which concerns on embodiment and comparative example of this invention. It is a figure which shows the deformation mode at the time of seeing from the upper side of the inner panel which concerns on embodiment and comparative example of this invention, Comprising: (A) is a diagram which shows the deformation mode of an inner panel upper part, (B) is an inner panel lower part It is a diagram which shows the deformation | transformation mode. It is a plane sectional view corresponding to Drawing 2 showing the door main part and reinforcement part of the side door to which the door structure concerning the 1st modification of an embodiment of the present invention was applied. It is a side view which shows the inner panel and reinforcement part of a side door to which the door structure which concerns on the 2nd modification of embodiment of this invention was applied. It is a figure which shows typically the inner panel and reinforcement part of a side door to which the door structure which concerns on the modification of embodiment of this invention is applied, Comprising: (A) is a side view which shows a 3rd modification, (B). These are side views which show a 4th modification.

  A door structure 10 as a vehicle door structure according to an embodiment of the present invention will be described with reference to FIGS. Note that an arrow FR appropriately shown in the drawing indicates a forward direction in the vehicle longitudinal direction, an arrow UP indicates an upward direction in the vehicle vertical direction, and an arrow OUT indicates an outside in the vehicle width direction. In the following description, when using the front-rear direction and the up-down direction unless otherwise specified, the front-rear direction of the vehicle and the up-down direction of the vehicle are indicated.

[Schematic overall configuration of side door]
FIG. 1 shows a schematic overall configuration of a side door 12 of an automobile to which a door structure 10 is applied as seen from the inner side in the vehicle width direction. As shown in this figure, the side door 12 includes a door body 14, a window regulator 16, and a door glass 18. As shown in FIG. 2, the door body 14 includes an inner panel 20 as a door panel and an outer panel 22 (not shown in FIG. 1) (not shown in FIG. 1).

(Door body)
As shown in FIG. 1, the inner panel 20 includes a side wall 20S facing the outer panel 22 in the vehicle width direction, a peripheral wall 20R erected outward in the vehicle width direction from the periphery of the side wall 20S, and a vehicle width of the peripheral wall 20R. And a flange 20 </ b> F extending outward of the peripheral wall 20 </ b> R from the outer edge in the direction. The peripheral wall 20R includes at least a front wall 20RF extending outward in the vehicle width direction from the front edge of the side wall 20S, a rear wall 20RR extending outward in the vehicle width direction from the rear edge of the side wall 20S, and a lower edge of the side wall 20S. A lower wall 20RL extending outward in the vehicle width direction.

  The inner panel 20 is made of a fiber reinforced resin that is an example of a resin. In this embodiment, a carbon fiber reinforced resin (hereinafter referred to as “CFRP”) is employed as the fiber reinforced resin. The CFRP carbon fibers constituting the inner panel 20 are oriented in the direction according to the required performance, but are along the plate surface direction of each part (side wall 20S, peripheral wall 20R, flange 20F).

  On the other hand, the outer panel 22 forms the design of the side door 12 when viewed from the outside of the automobile, and is made of metal. In this embodiment, the metal constituting the outer panel 22 is aluminum (or aluminum alloy). As shown in FIG. 2, the outer panel 22 has a peripheral edge portion fixed to the flange 20 </ b> F of the inner panel 20 by a hemming structure. As a result, the door body 14 of the side door 12 has a hollow structure surrounded by the outer panel 22, the side wall 20S of the inner panel, and the peripheral wall 20R.

  As shown in FIG. 1, the door main body 14 in this embodiment has a so-called frameless structure that does not have a frame that supports the upper edge of the door glass 18. The door body 14 is supported via a door hinge 24 as a hinge so as to be capable of opening and closing with respect to a vehicle body (a front pillar (not shown)). In this embodiment, a hinge shaft (not shown) of the door hinge 24 extends in the vertical direction, and the side door 12 rotates horizontally to open and close the door opening for getting on and off.

  In this embodiment, two door hinges 24 are provided apart in the vertical direction. Each door hinge 24 in this embodiment is fixed to the front wall 20RF of the inner panel 20 by fastening with fasteners (for example, bolts and nuts) 25, respectively.

  The side door 12 is configured to be held (locked) at a door opening closed position by a lock member 26. The lock member 26 is provided on the side door 12 side, and is configured to hold the side door 12 in the closed position of the door opening by locking a striker provided on the center pillar by a latch (not shown). In this embodiment, the lock member 26 is located above the central portion in the vertical direction of the inner panel 20.

(Window regulator and door glass)
As shown in FIG. 1, the door main body 14 has the window regulator 16 assembled to the side wall 20 </ b> S of the inner panel 20 made of resin as described above. The window regulator 16 includes a guide rail 28 as a guide member, a carrier plate 30 to which the door glass 18 is fixed, and a motor unit 32 for sliding the carrier plate 30 with respect to the guide rail 28. . The guide rail 28 is elongated in the vertical direction, and an upper end portion 28U as an example of the upper end side and a lower end portion 28L as an example of the lower end side are respectively connected to the side wall 20S of the inner panel 20 with fasteners (for example, bolts and It is fixed by fastening with a nut) 25.

  The carrier plate 30 has a lower end fixed to the door glass 18 and is configured to move up and down while being guided by the guide rail 28 by being pulled by a cable (not shown). The door glass 18 is moved up and down by the vertical movement of the carrier plate 30 with respect to the guide rail 28. In other words, the guide rail 28 is configured to guide the door glass 18 through the carrier plate 30 when moving up and down.

  The motor unit 32 is configured to apply power to rotate the cable in the forward and reverse directions.

  Here, as schematically shown in FIG. 3A, the upper end portion 28U of the guide rail 28 constituting the window regulator 16 includes an upper door hinge 24 (hereinafter referred to as “door hinge 24U”), a lock member 26, and the like. Are fixed to the side wall 20S of the inner panel 20 above the imaginary straight line IL1. The lower end portion 28L of the guide rail 28 is fixed to the side wall 20S of the inner panel 20 below a virtual straight line IL2 that connects the lower door hinge 24 (hereinafter referred to as “door hinge 24L”) and the lock member 26. ing. Hereinafter, the fixing portion of the upper end portion 28U of the guide rail 28 in the inner panel 20 is referred to as an upper fixing portion 20SU, and the fixing portion of the lower end portion 28L is referred to as a lower fixing portion 20SL.

[Main part configuration]
The inner panel 20 of the side door 12 described above is provided with a reinforcing portion 34 as schematically shown in FIG. The reinforcing portion 34 is provided in a continuous range that wraps to the upper fixing portion 20SU and the lower fixing portion 20SL in the vertical direction, and is configured to reinforce the inner panel 20.

  The reinforcing portion 34 connects the first reinforcing portion 34A that reinforces the installation range of the guide rail 28 in the inner panel 20 against vertical bending, and the first reinforcing portion 34A and a portion of the inner panel 20 that is fixed to the vehicle body. 2 reinforcement portions 34B. This will be specifically described below.

  The first reinforcing portion 34A is elongated in the up-down direction, and reinforces the inner panel 20 in a continuous range that wraps to the upper fixing portion 20SU and the lower fixing portion 20SL in the up-down direction. That is, the first reinforcing portion 34A is provided in a continuous range in which the upper end is located above the upper fixing portion 20SU and the lower end is located below the lower fixing portion 20SL. In this embodiment, the peripheral wall 20R in the range from the upper end of the rear wall 20RR to the portion located below the guide rail 28 in the lower wall 20RL is made thicker than the portion other than the reinforcing portion 34 in the inner panel 20. The first reinforcing portion 34A is configured.

  The second reinforcing portion 34B connects the lower end portion of the first reinforcing portion 34A and the fixed portion of the door hinge 24L in the inner panel 20. In this embodiment, by setting the peripheral wall 20R in the range from the portion located below the guide rail 28 in the lower wall 20RL to the fixed portion of the door hinge 24L in the front wall 20RF to a thickness equivalent to the first reinforcing portion 34A, A second reinforcing portion 34B is configured. In this embodiment, the reinforcing portion 34 is formed by increasing the thickness of the peripheral wall 20R over the entire width in the vehicle width direction (the total height of the wall height) in the circumferential installation range described above.

  As described above, the reinforcing portion 34 has been described by separating the function into the first reinforcing portion 34A and the second reinforcing portion 34B, but may be regarded as a single reinforcing portion 34 without particularly dividing the function. In this case, the reinforcing portion 34 is configured by making the peripheral wall 20R in the range from the upper end of the rear wall 20RR to the fixing portion of the door hinge 24L on the front wall 20RF thicker than the portion other than the reinforcing portion 34 in the inner panel 20. The thick part is made.

  In the reinforcing portion 34 in this embodiment, the thickness of the CFRP itself constituting the inner panel 20 is thicker than the portion other than the reinforcing portion 34 in the inner panel 20. For example, by increasing the number of laminated CFRP sheets (prepreg) before firing relative to the number of laminated portions in other portions, the thicker reinforcing portion 34 is configured than the other portions.

[Action]
Next, the operation of this embodiment will be described.

  The side door 12 is supported by the vehicle body via upper and lower door hinges 24, and opens and closes the door opening of the vehicle body by rotating around the hinge axis. In the closed state of the door opening, the side door 12 is supported by the vehicle body at three points: the upper and lower door hinges 24 and the lock member 26. A region A surrounded by a virtual straight line IL1 connecting the upper door hinge 24U and the lock member 26, a virtual straight line IL2 connecting the lower door hinge 24L and the lock member 26, and a virtual straight line (not shown) connecting the upper and lower door hinges 24. (Refer to FIG. 3A) is a high-rigidity portion of the inner panel 20.

  That is, the region A in the inner panel 20 is less likely to be deformed by the opening / closing operation of the door opening by the side door 12 or the external force input to the door glass 18 than the other regions. Hereinafter, it demonstrates, comparing with a comparative example.

(Configuration and operation of comparative example)
Although illustration is omitted, the side door according to the comparative example is configured in the same manner as the side door 12 except that the reinforcing portion 34 is not provided. For this reason, the code | symbol of the corresponding component which concerns on embodiment is attached | subjected to description of the side door which concerns on a comparative example for convenience. As described above, the inner panel 20 of the side door according to the comparative example that does not include the reinforcing portion 34 has a constant thickness of each portion including the side wall 20S, the peripheral wall 20R, and the flange 20F.

  As described above, in the side door according to the comparative example, the door glass 18 faces outward in the vehicle width direction as shown in FIG. A case where the load F is applied will be described.

  FIG. 5 shows a deformation mode of the rear end portion (see line 5-5 in FIG. 3A) of the flange 20F of the inner panel 20 when the load F acts on the door glass 18. As shown in FIG. A thin imaginary line IL3 indicates a state before the load F is input, and a thick imaginary line IL4 indicates a deformation mode of the inner panel of the side door according to the modification. As shown in this figure, the inner panel is configured in such a manner that the upper and lower parts with respect to the lock member 26 are located in the opposite direction of the vehicle width direction, with the installation position (supported portion by the vehicle body) of the lock member 26 in the vertical direction. 20 is a deformation mode in which 20 falls (tilts). Such a deformation mode can be remarkably generated in a side door having a so-called frameless structure that does not have a frame that supports the upper edge of the door glass 18.

  FIG. 6A shows a deformation of a portion of the inner panel 20 positioned above the upper door hinge 24U when the load F acts on the door glass 18 (see the line 6A-6A in FIG. 3A). Indicates the mode. Further, FIG. 6B shows a portion of the inner panel 20 located below the lower door hinge 24L when the load F acts on the door glass 18 (see the line 6B-6B in FIG. 3A). The deformation mode is shown. Also in these drawings, a thin imaginary line IL3 indicates a state before the load F is input, and a thick imaginary line IL4 indicates a deformation mode of the inner panel of the side door according to the modification.

  Also from these drawings, it can be seen that the inner panel 20 is deformed in such a manner that the inner panel 20 is displaced in the direction opposite to the vehicle width direction on the upper side and the lower side with respect to the high-rigidity portion which is the region A. This is because a moment M around the lock member 26 is generated by the load F, as shown in FIG. Further, from these drawings, the inner panel 20 is arranged in the vehicle width direction at the rear end portion connected to the vehicle body by the single lock member 26 rather than the front end portion connected to the vehicle body by the upper and lower door hinges 24. It turns out that it deforms greatly.

  The inner panel 20 is greatly deformed in this way because the orientation direction of the carbon fiber of the CFRP constituting the inner panel 20 is the plate surface direction as described above, and the carbon fiber contributes almost to the bending rigidity of the inner panel 20. It is because it does not. For this reason, in the inner panel 20 having a design similar to that of the steel inner panel (a configuration in which the thickness of each part is constant), the bending rigidity of the inner panel 20 is insufficient, and is input to the door glass 18 as described above. It will be greatly deformed against the load F.

(Operation of this embodiment)
On the other hand, in this embodiment, since the reinforcement part 34 is provided in the inner panel 20, compared with the inner panel 20 of the side door 12 which concerns on an above-described comparative example, the vehicle width input into the door glass 18 The inner panel 20 is not easily deformed by the load F in the direction. This will be specifically described below.

  The reinforcing portion 34 reinforces the inner panel 20 provided in a continuous range including the upper fixing portion 20SU and the lower fixing portion 20SL of the guide rail 28 in the inner panel 20, that is, the load input portion to the inner panel 20. ing. For this reason, deformation of the inner panel 20 with respect to a load input to the inner panel 20 from the door glass 18 through the upper fixing portion 20SU and the lower fixing portion 20SL of the guide rail 28 is suppressed.

  Thereby, in the side door 12 to which the door structure 10 according to the present embodiment is applied, deformation of the CFRP inner panel 20 due to a load from the door glass 18 can be suppressed. Further, the vibration of the door glass 18 due to the deformation of the inner panel 20 can be suppressed.

  Further, in the door structure 10, the rear portion of the inner panel 20, that is, the portion on the opposite side to the side connected to the vehicle body by the door hinge 24 is reinforced by (a part of) the reinforcing portion 34. For this reason, compared with the above-described comparative example, the deformation of the rear end portion of the inner panel 20 in which the deformation amount tends to be large is effectively suppressed.

  Moreover, the reinforcing portion 34 reinforces the inner panel 20 in a range from the upper end of the rear end portion of the inner panel 20, that is, the upper portion from the upper fixing portion 20SU to the fixing portion of the lower door hinge 24L. For this reason, compared with the structure which reinforces only the rear-end side part in which the deformation | transformation amount in the inner panel 20 tends to become large, a deformation | transformation of the inner panel 20 is suppressed effectively.

  This reinforcing effect will be supplemented from another viewpoint. The reinforcing portion 34 extends from the upper end of the rear end portion of the inner panel 20 to the lower portion of the lower fixing portion 20SL, and extends from the lower end of the first reinforcing portion 34A to the fixing portion of the door hinge 24L. The second reinforcing portion 34B provided in the range is included. The first reinforcing portion 34A mainly reinforces the inner panel 20 against a load input from the door glass 18 to the inner panel 20 through the upper fixing portion 20SU and the lower fixing portion 20SL of the guide rail 28. The second reinforcing portion 34B mainly restrains the inner panel 20, that is, the first reinforcing portion 34A, by connecting the lower end portion, which tends to be large in deformation (displacement in the vehicle width direction), to the connection portion with the vehicle body. For this reason, in the door structure 10, the deformation | transformation of the inner panel 20 is suppressed effectively compared with the structure which does not have the 2nd reinforcement part 34B.

  Further, in the door structure 10, the reinforcing portion 34 is disposed along the periphery of the inner panel 20. That is, the reinforcement part 34 is arrange | positioned in the area | region containing the rear-end part (except for the flange 20F) where the deformation amount by the load F in the inner panel 20 becomes the largest. Thereby, compared with the above-described comparative example, the deformation of the rear end portion of the inner panel 20 in which the deformation amount is likely to be increased is more effectively suppressed.

  Furthermore, in the door structure 10, the reinforcement part 34 is provided in the surrounding wall 20R. For this reason, the load input in the bending direction of the side wall 20S in the upper fixing portion 20SU and the lower fixing portion 20SL is sheared (in the orientation direction of the reinforcing fibers or in the direction intersecting the orientation direction) in the peripheral wall 20R, that is, the reinforcing portion 34. Load) (see arrow S in FIG. 4). For this reason, the reinforcement effect of the inner panel 20 with respect to the load F is high compared with the structure provided with the reinforcement part formed by thickening a part of side wall 20S. That is, as compared with the above-described comparative example, the deformation of the rear end portion of the inner panel 20 in which the deformation amount is likely to be increased is more effectively suppressed. Moreover, since the reinforcing portion 34 is continuous from the rear wall 20RR to the lower wall 20RL forming different surfaces, in other words, the reinforcing portion 34 includes a rounded portion (ridge line) between the rear wall 20RR and the lower wall 20RL. Therefore, the reinforcing effect of the side wall 20S by the reinforcing portion 34 is higher.

  As described above, in the door structure 10 according to the present embodiment, as shown by the solid line CL in FIGS. 6A and 6B, compared with the configuration according to the above-described comparative example (imaginary line IL4). The deformation of the inner panel 20 with respect to the load F is remarkably suppressed. Therefore, compared with the configuration according to the comparative example described above, the vibration of the door glass 18 due to the deformation of the inner panel 20 due to the load (fluctuation) in the vehicle width direction input to the door glass 18 is effectively suppressed. The

  In the door structure 10 according to the present embodiment, the reinforcing portion 34 is provided on the peripheral portion of the inner panel 20, more specifically, on the peripheral wall 20R as described above. For this reason, it is a structure with few restrictions with respect to arrangement | positioning etc. of the components assembled | attached to the inner panel 20, and the deformation | transformation of the inner panel 20 by the load from the door glass 18 and the vibration of the door glass 18 resulting from this deformation | transformation can be suppressed.

[Modification of reinforcement part]
(First modification)
FIG. 7 shows a reinforcing portion 36 according to the first modification. As shown in this figure, the reinforcing portion 36 is configured by making the peripheral wall 20R thicker than the portion other than the reinforcing portion 34 in the inner panel 20 within the same range as the reinforcing portion 34. The reinforcing portion 36 is made thicker than other portions of the inner panel 20 by embedding an insert material 36I made of a material different from the CFRP constituting the inner panel 20 inside the peripheral wall 20R. The insert material 36I according to this modified example is a metal plate such as steel or aluminum. Also by the door structure 10 provided with the reinforcement part 36 which concerns on a 1st modification, the effect similar to the said embodiment can be acquired.

(Second modification)
FIG. 8 shows a reinforcing portion 38 according to the second modification. As shown in this figure, the reinforcing portion 38 is configured by making the peripheral wall 20R higher than the portion other than the reinforcing portion 34 in the inner panel 20 in the same range as the reinforcing portion 34 (increase in wall height). ing. The plate thickness of the peripheral wall 20 </ b> R that forms the reinforcing portion 38 is equal to the plate thickness of other portions of the inner panel 20. Also by the door structure 10 provided with the reinforcement part 38 which concerns on a 2nd modification, the effect similar to the said embodiment can be acquired.

  In the second modification, the plate thickness of the peripheral wall 20 </ b> R that forms the reinforcing portion 38 may be made thicker than the plate thickness of other portions of the inner panel 20.

(Third Modification)
FIG. 9A shows a reinforcing portion 40 according to a third modification. As shown in this figure, the reinforcing portion 40 is provided on the side wall 20S. The reinforcing part 40 includes a first reinforcing part 40A and a second reinforcing part 40B. 40 A of 1st reinforcement parts are provided in the continuous range which wraps to upper fixing part 20SU and lower fixing part 20SL in the up-down direction. The second reinforcing portion 40B is provided in a range from the lower portion of the first reinforcing portion 40A to the lower door hinge 24L of the inner panel 20.

  In the third modification, the reinforcing portion 40 is configured by partially increasing the thickness of the side wall 20S. The thickening of the side wall 20S is preferably configured such that an insert material, which is a metal plate material, is embedded in the side wall 20S. This is because the bending rigidity (elastic modulus) of the metal plate is higher than the CFRP plate in which the carbon fibers are oriented in the plate surface direction.

  Also according to the third modified example, except for the operational effect due to the reinforcement portion 34 being disposed on the periphery of the inner panel 20 and the operational effect due to the reinforcement portion 34 being provided on the peripheral wall 20R, the same as in the above embodiment. The effect of this can be obtained.

  In the illustrated example, the first reinforcing portion 40A is disposed between the guide rail 28 (not shown) and the rear wall 20RR in the front-rear direction, but may be disposed adjacent to the rear wall 20RR. . Moreover, although the 2nd reinforcement part 40B is arrange | positioned above the lower wall 20RL, you may arrange | position adjacent to the lower wall 20RL.

(Fourth modification)
FIG. 9B shows a reinforcing portion 42 according to a fourth modification. As shown in this figure, a part of the reinforcing part 42 is provided on the side wall 20S and the other part is provided on the peripheral wall 20R. The reinforcing part 42 includes a first reinforcing part 42A and a second reinforcing part 42B. 42 A of 1st reinforcement parts are provided in the continuous range which wraps to upper fixing part 20SU and lower fixing part 20SL in the up-down direction. The second reinforcing portion 42B is provided in a range from the lower end of the first reinforcing portion 42A to the lower door hinge 24L of the inner panel 20.

  In the fourth modification, the first reinforcing portion 42A is configured by partially increasing the thickness of the side wall 20S. The side wall 20S is preferably thickened such that the insert material, which is a metal plate material, is embedded in the side wall 20S, as in the third modification. Moreover, the 2nd reinforcement part 42B is comprised by thickening the lower wall 20RL and the lower part of front wall 20RF in the surrounding wall 20R rather than another part.

  Also according to the fourth modification, it is possible to obtain the same functions and effects as those of the above-described embodiment except for the functions and effects obtained by providing the reinforcing portion 34 on the peripheral wall 20R as a whole.

(Other variations)
In the above-described embodiment, the example in which the reinforcing portions 34, 36, 38, 40, 42 reach the fixing portion of the lower door hinge 24 </ b> L in the inner panel 20 is shown, but the present invention is not limited to this. For example, the reinforcing portion may be configured only by portions corresponding to the first reinforcing portions 34A, 40A, and 42A. Further, for example, the reinforcing portion is configured such that the second reinforcing portion is provided in a range from the lower end of the portion corresponding to the first reinforcing portion 34A, 40A, 42A to the upper door hinge 24U on the peripheral wall 20R or the upper end of the front wall 20RF. It may be said.

  In the above-described embodiment, the example in which the reinforcing portion is configured by at least one of the increase in the plate thickness and the increase in the wall height is shown, but the present invention is not limited to this. For example, you may comprise a reinforcement part by the structure which partially increases the density of the carbon fiber which comprises the inner panel 20, and the structure which uses a high strength carbon fiber and a metal plate partially. Such a configuration is more effective when the reinforcing portion is provided on the peripheral wall 20R than the configuration in which the reinforcing portion is provided on the side wall 20S.

  Further, in each of the embodiments described above, an example in which the inner panel 20 is made of CFRP has been shown, but the present invention is not limited to this. For example, an inner panel 20 made of fiber reinforced resin using glass or Kevlar as the reinforcing fiber can be employed. Moreover, resin which comprises the inner panel 20 is not restricted to what contains a reinforced fiber, For example, the resin-made inner panels 20 which do not contain a reinforced fiber are employable.

  Furthermore, in the above-described embodiment, the example in which the peripheral wall 20R linearly connects the side wall 20S and the flange 20F is shown, but the present invention is not limited to this. For example, it is good also as a structure by which the level | step difference was formed in the vehicle width direction intermediate part in at least one part of the surrounding wall 20R. As such a level | step difference, the level | step difference which forms the contact surface of a weather strip is assumed, for example. In a configuration in which a step is formed on the peripheral wall 20R, a reinforcing portion may be provided on the entire circumferential wall 20R in the vehicle width direction, or a reinforcing portion may be provided on only one side of the step. Further, in the configuration of the above-described embodiment (the configuration in which the peripheral wall 20R linearly connects the side wall 20S and the flange 20F), a reinforcing portion may be formed in a part of the peripheral wall 20R in the vehicle width direction.

  In the above-described embodiment, an example in which the window regulator 16 includes one guide rail 28 is shown, but the present invention is not limited to this. For example, it is good also as a structure by which the guide rail (glass run) was fixed to the front and back both sides of the inner panel 20. FIG. In such a configuration, for example, a so-called X arm type window regulator can be employed.

  Furthermore, in the said embodiment, although the upper side fixing | fixed part 20SU and lower side fixing | fixed part 20SL of the guide rail 28 in the inner panel 20 showed the example which is another fixing | fixed part which left | separated to the up-down direction, this invention is limited to this. Not. In the present invention, it is sufficient that the reinforcing portion is provided in a continuous range where all the fixing portions of the guide member to the door panel are wrapped in the vertical direction, and the upper and lower fixing portions may not be separated in the vertical direction. Therefore, for example, the guide rail may be fixed to the inner panel 20 by bonding or the like over the entire length in the longitudinal direction. In such a configuration, for example, the bonded portion including the upper end of the guide rail in the inner panel 20 is the upper fixed portion 20SU, and the bonded portion including the lower end of the guide rail is the lower fixed portion 20SL.

  Furthermore, in each of the above-described embodiments, the example in which the front end side of the side door 12 is connected to the vehicle body by a pair of upper and lower (two) door hinges 24 is shown, but the present invention is not limited to this. For example, the front end side of the side door 12 may be configured to be connected to the vehicle body by a single or three or more door hinges.

  Moreover, in each above-mentioned embodiment, although the side door 12 showed the example which is a side door of a front hinge, this invention is not limited to this. For example, the present invention may be applied to a side door for a rear hinge, a side door for an upper hinge (so-called gull wing door), a side door that is a slide door, and the like. Moreover, as a side door, it can employ | adopt as any of a front side door (including the case where it is a side door of a 2-door or a 3-door vehicle), and a rear side door.

  Furthermore, in each above-mentioned embodiment, although the example where the vehicle door structure was applied to the side door 12 was shown, this invention is not limited to this. For example, the back door of an upper hinge may be sufficient and this invention may be applied to the back door of a horizontal hinge.

  In addition, it goes without saying that the present invention can be implemented with various modifications without departing from the gist thereof. For example, you may comprise a reinforcement structure combining the structure (element) of each said modification suitably.

10 Door structure (vehicle door structure)
18 Door glass 20 Inner panel (door panel)
20R peripheral wall 20S side wall 20SL lower fixed part 20SU upper fixed part 24 door hinge (hinge)
28 Guide rail (guide member)
34 reinforcement part 34A 1st reinforcement part 34B 2nd reinforcement part 36 * 38 * 40 * 42 reinforcement part 40A * 42A 1st reinforcement part 40B * 42B 2nd reinforcement part

Claims (7)

A guide member that is elongated in the vehicle vertical direction and guides the door glass during elevation,
A resin door panel in which an upper end side and a lower end side of the guide member are fixed by an upper fixing portion and a lower fixing portion;
A reinforcing portion provided in a continuous range that wraps to the upper fixing portion and the lower fixing portion in the vehicle vertical direction in the door panel;
A vehicle door structure comprising: The door panel is a structure that constitutes a side door supported by the vehicle body via a hinge fixed to one end side in the vehicle longitudinal direction,
2. The vehicle according to claim 1, wherein the reinforcing portion includes at least a portion provided in a continuous range that wraps to the upper fixing portion and the lower fixing portion in the vehicle vertical direction on the other end side of the door panel in the vehicle front-rear direction. Door structure.   The vehicle door structure according to claim 2, wherein the reinforcing portion is provided in a continuous range from an upper end portion on the other end side in the vehicle front-rear direction of the door panel to a fixing portion of the hinge. The reinforcing part is
A first reinforcing portion provided in a continuous range that wraps to the upper fixing portion and the lower fixing portion in the vehicle vertical direction on the other end side of the door panel in the vehicle front-rear direction;
A second reinforcing portion provided in a range from a lower end portion of the first reinforcing portion to a fixing portion of the hinge;
The door structure for vehicles of Claim 2 or Claim 3 comprised including these.   The vehicle door structure according to claim 3 or 4, wherein the reinforcing portion is provided along a peripheral portion of the door panel. The door panel includes a side wall in which the guide member is fixed by the upper fixing portion and the lower fixing portion, and a peripheral wall that is erected from the periphery of the side wall toward the outside in the vehicle width direction and to which the hinge is fixed. Has been
The vehicle door structure according to claim 5, wherein at least a part of the reinforcing portion is provided on the peripheral wall.   The vehicle door structure according to claim 6, wherein the reinforcing portion is configured such that a thickness of the peripheral wall is larger than a thickness of the side wall.

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