JP7406725B2 - backdoor structure - Google Patents

Description

The present invention relates to a back door structure for a vehicle.

Conventionally, a back door of a vehicle is provided with a handle portion for opening and closing the door. For example, in the vehicle door opening/closing structure disclosed in Patent Document 1, a rear garnish coupled to a back door panel so as to cover an unlock switch is used as a handle portion. A bracket having a finger hook disposed between the lock release switch and the lower end of the rear garnish is attached to the rear garnish. Further, the finger rest is provided with a load-applying rib, and the rear garnish is provided with a load-receiving rib. In such a door opening/closing structure of Patent Document 1, when a finger is placed on the finger rest when operating the lock release switch, the load applying rib and the load receiving rib are engaged, and the load generated on the finger rest is transferred to the rear. The rigidity of the finger rest is ensured by being held by the garnish.

Japanese Patent Application Publication No. 2014-97768

However, in the conventional structure as described above, the handle part is constructed by a combination of the rear garnish and the bracket (finger rest part), and the structure (load-applying ribs, load-receiving ribs) for reinforcing the handle part is not required. Therefore, an increase in the number of parts and a complicated structure were unavoidable. For this reason, the conventional structure reduces the ease of assembling the back door and increases costs, so there is room for improvement.

The present invention was made in view of the above circumstances, and its purpose is to provide a bag that can improve assembly ease and reduce costs by realizing a handle portion that has a simple structure and can ensure rigidity. It is to provide door structure.

In order to solve the problems of the prior art described above, the present invention provides a frame member having a shape corresponding to a back door, a panel member joined to the outer surface of the frame member, and a handle portion provided on the panel member. In the back door structure in which the back door is opened and closed using the handle portion, the panel member includes an outer vertical wall portion located on the outside of the vehicle and extending in the vertical direction of the vehicle, and an outer vertical wall portion located on the inside of the vehicle. The vehicle has an inner vertical wall extending in the vertical direction of the vehicle, and a connecting portion connecting a lower end of the outer vertical wall and an upper end of the inner vertical wall, the connecting portion being , including a flat part extending in the vehicle width direction, the flat part having an opening at a position corresponding to the handle part, and an upper side of the flat part having an opening above the vehicle at a position corresponding to the opening. A handle bracket having a recessed grip portion is fixed thereto. The handle bracket has at least a mounting part for mounting a switch member, a license lamp member, and a rear confirmation device, the grip part and the mounting part are formed of an integral member, and the flat part The opening of the panel member is provided to cover more than half of the vehicle width direction range on the upper side, and in addition to the position corresponding to the handle part, the opening part of the panel member is provided at a position corresponding to the license lamp member and at the rear side. The switch member, the license lamp member, and the rearward confirmation device are provided at a position corresponding to the confirmation device, and the switch member, the license lamp member, and the rearward confirmation device are provided at a position corresponding to the confirmation device. It is mounted on the mounting portion of the handle bracket.

In the back door structure according to the present invention as described above, an opening is formed at a position corresponding to the handle in the flat part included in the connection part of the panel member, and a handle bracket is provided above the flat part of the panel member. is fixed. The handle bracket is provided with a grip portion at a position corresponding to the opening of the panel member , and a mounting portion for mounting at least a switch member, a license lamp member, and a rear confirmation device is integrated with the grip portion. The opening of the panel member and the gripping part of the handle bracket are used as a handle part when opening and closing the back door.

In the back door structure of the present invention, the gripping part of the handle bracket is installed inside the panel member, so it is difficult to use the rear garnish that was used as the handle part in the conventional structure described above. There is no need for a member to cover the switch. Further, in the back door structure of the present invention, the rigidity of the grip portion is ensured by the handle bracket, so that a conventional structure for reinforcing the handle portion is not required. Further, the gripping portion of the handle bracket according to the present invention opens toward the lower side of the vehicle through the opening of the panel member, and has a structure that prevents rainwater or the like from penetrating into the gripping portion. In addition, because the gripping part and mounting part of the handle bracket are formed of an integral member, a large number of parts and devices installed on the back door can be combined into one handle bracket and modularized, reducing production costs. Assembling work on the line can be easily performed, and the number of man-hours for assembling work can be reduced.

Therefore, according to the back door structure of the present invention, it is possible to realize a handle portion that can ensure rigidity with a simple structure, and it is possible to improve the ease of assembling the back door and reduce costs. , it is also possible to improve user convenience.

1 is a front view of a back door of a vehicle to which a back door structure according to an embodiment of the present invention is applied, viewed from the rear side of the vehicle. FIG. 2 is an enlarged perspective view of section A in FIG. 1 viewed from the rear side of the vehicle. FIG. 2 is an enlarged perspective view of portion A in FIG. 1 viewed from below on the rear side of the vehicle. FIG. 2 is an enlarged perspective view of portion A in FIG. 1 viewed from below on the rear side of the vehicle. FIG. 2 is an enlarged perspective view of the back door of FIG. 1 near the handle bracket, seen from above on the front side of the vehicle. 6 is a perspective view showing a state in which the handle bracket is removed in FIG. 5. FIG. 3 is a sectional view taken along line BB in FIG. 2. FIG. FIG. 8 is an enlarged cross-sectional view of section C in FIG. 7; 6 is a perspective view showing a state in which the back door harness is fixed to the handle bracket in FIG. 5. FIG.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
1 to 9 show backdoor structures according to embodiments of the present invention. In the figure, the arrow O direction indicates the outside in the width direction of the vehicle (back door), the arrow U direction indicates the upper side of the vehicle, the arrow X direction indicates the vehicle width direction, and the arrow F direction indicates the front side in the longitudinal direction of the vehicle. It shows.

FIG. 1 shows a back door 1 of a vehicle to which the back door structure of this embodiment is applied. In FIG. 1, a back door 1 is rotatably attached to the rear of a vehicle body via an opening/closing hinge (not shown). The back door structure of this embodiment includes a frame member 2 having a shape corresponding to the back door 1, a panel member 3 joined to the outer surface of the frame member 2, and a handle portion H provided on the panel member 3. ing. The frame member 2 is formed using a metal (sheet metal) member, and the panel member 3 is formed using a resin member.

Specifically, in the back door 1 in this embodiment, a glass member 5 is installed in the upper half of the frame member 2, and a panel member 3 is installed in the lower half of the frame member 2. A recessed portion 3a that is recessed toward the front side (inside the vehicle) in the longitudinal direction of the vehicle is provided at the intermediate portion of the panel member 3 in the vehicle width direction. A license plate 6 is attached to approximately the center of the bottom wall portion of the recess 3a. A handle portion H used when opening and closing the back door 1 is provided in the center portion of the recessed portion 3a of the panel member 3 above the vehicle in the vehicle width direction. Details of the handle portion H will be described later. A rear wiper 7 is attached to the lower part of the glass member 5 at the center in the vehicle width direction. At a position between the glass member 5 and the panel member 3, tail lamps 8 are attached on both left and right sides.

Hereinafter, the structure of the back door 1 around the handle portion H (portion A surrounded by a dashed line in FIG. 1) will be described in detail. As shown in FIGS. 2 to 7, which are enlarged views of part A in FIG. It includes an inner vertical wall portion 3c extending in the vehicle vertical direction, and a connecting portion 3d connecting the lower end of the outer vertical wall portion 3b and the upper end of the inner vertical wall portion 3c. Further, the connecting portion 3d of the panel member 3 includes a flat portion 3e extending in the vehicle width direction. The aforementioned recessed portion 3a of the panel member 3 is adjacent to the lower end of the outer vertical wall portion 3b, and the side wall portion of the recessed portion 3a located on the upper side of the vehicle is formed by the connecting portion 3d (flat portion 3e) of the panel member 3. At the same time, the bottom wall portion of the recessed portion 3a is formed by the inner vertical wall portion 3c of the panel member 3.

As shown in FIGS. 3 and 6, a plurality of openings 3f, 3g, 3h, and 3i are formed in the plane portion 3e of the panel member 3, passing through the vehicle in the vertical direction. An opening 3f located approximately at the center of the flat portion 3e in the vehicle width direction is formed at a position corresponding to the handle H. The opening 3f is formed in a substantially rectangular shape extending in the vehicle width direction, and is designed to have a size that allows the user's hand (fingertip) to be inserted into the opening 3f. Further, openings 3g and 3h arranged on both the left and right sides of the opening 3f are formed at positions corresponding to the left and right license lamp members 11, respectively. Further, an opening 3i located to the left of the left opening 3g toward the front of the vehicle is formed at a position corresponding to the rear confirmation device 12. A handle bracket 4 extending in the vehicle width direction is fixed to the upper side of the flat portion 3e of the panel member 3.

Furthermore, as shown in FIGS. 5 and 6, the panel member 3 in this embodiment protrudes toward the front of the vehicle (inside the vehicle) from an inner corner 3j formed by an inner vertical wall 3c and a connecting portion 3d. It has a plurality of inner bracket fixing parts 3m formed therein. The inner bracket fixing portions 3m are arranged at positions corresponding to both sides of the opening 3f located approximately at the center of the flat portion 3e and at positions corresponding to both sides of the handle bracket 4 in the vehicle width direction. There is. That is, the panel member 3 has four fixing points as the inner bracket fixing portion 3m. Further, the panel member 3 has a plurality of outer bracket fixing portions 3n formed to protrude upward from the outer corner portion 3k constituted by the outer vertical wall portion 3b and the connecting portion 3d (Fig. 6 ). Like the inner bracket fixing part 3m, the outer bracket fixing part 3n is also disposed in the vehicle width direction at a position corresponding to both sides of the opening 3f and a position corresponding to both sides of the handle bracket 4, and The member 3 has four fixing points as outer bracket fixing parts 3n.

As shown in FIGS. 2 to 5, the handle bracket 4 has a grip portion 4a recessed upward from the vehicle at a position corresponding to the opening 3f of the panel member 3. The gripping portion 4a has an opening end substantially matching the shape of the opening 3f of the panel member 3, and is formed in a concave shape having a side wall and a top extending upward from the opening end of the vehicle. In this embodiment, the handle portion H used when opening and closing the back door 1 is composed of an opening portion 3f of the panel member 3 and a grip portion 4a of the handle bracket 4.

Further, the handle bracket 4 has mounting portions 4b, 4c, 4d, and 4e for mounting the switch member 10, the license lamp member 11, and the rear confirmation device 12, respectively. The mounting part 4b for the switch member 10 is provided at the top of the grip part 4a, and here the door opening switch member 10a and the lock opening/closing switch member 10b are mounted so as to be operable from the outside of the vehicle. Mounting parts 4c and 4d for the license lamp member 11 are provided at positions corresponding to the openings 3g and 3h of the panel member 3. The mounting portion 4e for the rear confirmation device 12 is provided at a position corresponding to the opening 3i of the panel member 3. Note that the two-dot chain line shown in FIGS. 2 and 4 represents an imaginary line of the panel member 3.

Further, the handle bracket 4 has an inner bracket fixed part 4f corresponding to the inner bracket fixed part 3m of the panel member 3, and an outer bracket fixed part 4g corresponding to the outer bracket fixed part 3n of the panel member 3. ing. By fixing the inner bracket fixing part 3m and the outer bracket fixing part 3n of the panel member 3 to the inner bracket fixed part 4f and the outer bracket fixed part 4g of the handle bracket 4, the handle bracket 4 is fixed to the panel member 3. It comes to be fixed at a predetermined position above the flat part 3e. As a result, the license lamp member 11 and the rear confirmation device 12 mounted on the mounting parts 4c, 4d and the mounting part 4e are exposed to the outside of the vehicle through the openings 3g, 3h and 3i of the panel member 3. It will be installed in

In addition, the handle bracket 4 has a rib-shaped portion 4h extending along the periphery of the opening 3f of the panel member 3 (see FIG. 3). As shown in the cross-sectional views of FIGS. 7 and 8, this rib-shaped portion 4h is formed so that when the handle bracket 4 is fixed above the plane portion 3e of the panel member 3, the tip portion of the rib-shaped portion 4h is It protrudes further below the vehicle than 3e. Specifically, the rib-shaped portion 4h protrudes downward from the vehicle with the opening end of the grip portion 4a of the handle bracket 4 as the base end, and the outer peripheral side surface of the rib-shaped portion 4h is located at the edge of the opening 3f of the panel member 3. , and the tip portion of the rib-shaped portion 4h is located on the lower side of the vehicle (outside the vehicle) than the flat portion 3e of the panel member 3. In addition, in this embodiment, an example was shown in which the rib-shaped part 4h is formed along the entire periphery of the opening 3f of the panel member 3, but the rib-shaped part 4h is formed at least on the vehicle rear side of the periphery of the opening. It suffices if it extends along the section.

Further, the handle bracket 4 has a substantially rectangular annular water stop member 9 at a position overlapping the peripheral edge of each of the openings 3f to 3i formed in the panel member 3 (see FIG. 4). Each water stop member 9 is fixed in a state of being sandwiched between the flat portion 3e of the panel member 3 and the handle bracket 4. The enlarged sectional view of FIG. 8 shows a fixed state of the water stop member 9 provided at a position overlapping the peripheral edge of the opening 3f of the panel member 3.

Further, the handle bracket 4 has a harness holding portion 4i for holding the back door harness 13, as shown in FIGS. 5 and 9. The back door harness 13 is an assembled component made by bundling a plurality of electric wires used for power supply and signal communication for various devices installed at the rear of the vehicle. A plurality of harness clips 13a are attached to the back door harness 13, and each harness clip 13a is fixed to the harness holding portion 4i of the handle bracket 4. Here, the harness holding parts 4i are provided at three locations on the left and right sides of the handle bracket 4 and on the side of the grip part 4a. However, the arrangement of the harness holding portion 4i on the handle bracket 4 is not limited to this.

Next, the operation of the backdoor structure according to this embodiment will be explained in detail.
In the back door 1 to which the above-described structure is applied, an opening 3f is formed at a position corresponding to the handle part H in the plane part 3e of the panel member 3, and a grip part is formed at a position corresponding to the opening 3f. A handle bracket 4 having a handle bracket 4a is fixed to the upper side of the flat portion 3e of the panel member 3. When the back door 1 is opened and closed, the opening 3f of the panel member 3 and the grip part 4a of the handle bracket 4 are used as the handle part H.

In such a back door structure, the grip part 4a of the handle bracket 4 is installed inside the panel member 3, so a switch such as a rear garnish, which was used as a handle part in the conventional structure, cannot be used. No need for parts to cover up. Furthermore, in the back door structure of this embodiment, the rigidity of the grip portion 4a is ensured by the handle bracket 4, so that a conventional structure for reinforcing the handle portion is not required. Therefore, according to the back door structure of this embodiment, it is possible to realize the handle part H that can ensure rigidity with a simple structure, and it is possible to improve the ease of assembling the back door 1 and reduce costs. . Furthermore, in the back door structure of the present embodiment, the gripping part 4a of the handle bracket 4 opens toward the lower part of the vehicle through the opening 3f of the panel member 3, so that rainwater etc. are difficult to enter into the gripping part 4a. Therefore, it is possible to improve the convenience for the user.

Further, in the back door structure of this embodiment, an inner bracket fixing portion 3m is formed to protrude from the inner corner portion 3j of the panel member 3 toward the front (inside) of the vehicle. Thereby, the fixing structure for the handle bracket 4 can be provided on the panel member 3 without causing problems such as sink marks on the design surface of the panel member 3 located on the outside of the vehicle.

Further, in the back door structure of this embodiment, an outer bracket fixing portion 3n is formed to protrude upward from the outer corner portion 3k of the panel member 3 toward the vehicle. The outer bracket fixing part 3n is located on the plane part 3e of the panel member 3, and since the plane part 3e of the panel member 3 faces downward from the vehicle when viewed from the outside of the vehicle, the outer bracket fixing part 3n is formed. As a result, defects in molding that may occur on the surface of the panel member 3 become less noticeable, and it is possible to realize a back door 1 with good appearance. Furthermore, since the outer bracket fixing portion 3n is formed inside the outer corner portion 3k (the outer vertical wall portion 3b and the connecting portion 3d), it is also possible to increase the strength around the outer corner portion 3k of the panel member 3. be.

In addition, in the back door structure of this embodiment, the inner bracket fixing part 3m and the outer bracket fixing part 3n of the panel member 3 are located at positions corresponding to both sides of the opening 3f and of the handle bracket 4 in the vehicle width direction. It has a plurality of fixing points at corresponding positions on both sides. By fixing the handle bracket 4 to the inner bracket fixing part 3m and the outer bracket fixing part 3n, the flat part 3e of the panel member 3 is effectively reinforced by the handle bracket 4. Thereby, the rigidity of the handle portion H (opening portion 3f and gripping portion 4a) can be further improved, and generation of a gap between the panel member 3 and the handle bracket 4 can also be effectively suppressed. .

In addition, in the back door structure of this embodiment, the mounting portions 4b respectively correspond to the switch member 10 (the door opening switch member 10a and the lock opening/closing switch member 10b), the license lamp member 11, and the rear confirmation device 12. -4e are provided on the handle bracket 4. As a result, a large number of components and devices installed in the back door 1 are combined into one handle bracket 4 and modularized, making assembly work easier on the production line and reducing the number of man-hours for assembly work. can be reduced.

Furthermore, in the back door structure of the present embodiment, the handle bracket 4 is provided with a rib-shaped portion 4h extending along the periphery of the opening 3f of the panel member 3. The edge part of 3f will be covered. This prevents the creation of a gap between the panel member 3 and the handle bracket 4 that would cause the user's fingernails to get caught when opening and closing the back door 1, so the user can safely open and close the back door 1. Can be opened and closed.

In addition, in the back door structure of the present embodiment, water stop members 9 are provided at positions that overlap with the peripheral edges of each of the openings 3f to 3i of the panel member 3, and each water stop member 9 It is held and fixed between the flat part 3e and the handle bracket 4. As a result, each water stopper member 9 is pressed against the peripheral edge of each opening 3f to 3i of the panel member 3 with uniform force, so that rainwater, etc. does not intrude into the inside of the panel member 3. can be reliably prevented.

Further, in the back door structure of this embodiment, a door opening switch member 10a and a lock opening/closing switch member 10b are provided on the grip portion 4a of the handle bracket 4 in a state that they can be operated from the outside of the vehicle. This makes it difficult for rainwater, mud, etc. to adhere to the door opening switch member 10a and the lock opening/closing switch member 10b, thereby further improving convenience for the user.

Furthermore, according to the back door structure of the present embodiment, the handle bracket 4 is provided with the harness holding portion 4i, so the back door harness 13 can be wired without affecting the panel member 3 that forms the design surface. This makes it possible to improve workability on the production line.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention. For example, in the embodiment described above, an example was shown in which both the inner bracket fixing part 3m and the outer bracket fixing part 3n are provided on the panel member 3, but either one is provided on the panel member 3 to fix the handle bracket 4. You may also do this. Further, although an example has been shown in which the switch member 10, the license lamp member 11, and the rear confirmation device 12 are attached to the handle bracket 4, it is of course possible to attach members and devices other than these to the handle bracket 4. .

1... Back door 2... Frame member 3... Panel member 3a... Recessed part 3b... Outer vertical wall part 3c... Inner vertical wall part 3d... Connection part 3e... Plane part 3f, 3g, 3h, 3i... Opening part 3j... Inner corner part 3k...Outer corner 3m...Inner bracket fixing part 3n...Outer bracket fixing part 4...Handle bracket 4a...Gripping part 4b, 4c, 4d, 4e...Mounting part 4f...Inner bracket fixed part 4g...Outer bracket fixed part 4h ...Rib shaped part 4i...Harness holding part 9...Water stop member 10...Switch member 10a...Switch member for opening door 10b...Switch member for lock opening/closing 11...License lamp member 12...Device for rear confirmation 13...Back door harness H... Handle part

Claims (6)

A frame member having a shape corresponding to a back door, a panel member joined to an outer surface of the frame member, and a handle portion provided on the panel member, the back door being opened and closed using the handle portion. In the backdoor structure,
The panel member includes an outer vertical wall portion located on the outside of the vehicle and extending in the vehicle vertical direction, an inner vertical wall portion located on the inside of the vehicle and extending in the vehicle vertical direction, and a lower end portion of the outer vertical wall portion. a connection part connecting between the upper end part of the inner vertical wall part,
The connecting portion includes a flat portion extending in the vehicle width direction,
The flat part has an opening at a position corresponding to the handle part,
A handle bracket having a grip portion recessed upward from the vehicle at a position corresponding to the opening portion is fixed to the upper side of the flat portion,
The handle bracket has at least a mounting part for mounting a switch member, a license lamp member, and a rear confirmation device, the grip part and the mounting part are formed of an integral member, and the flat part It is installed to cover more than half of the vehicle width direction on the upper side of the vehicle.
The opening of the panel member is provided at a position corresponding to the handle part, a position corresponding to the license lamp member, and a position corresponding to the rear confirmation device,
The switch member, the license lamp member, and the rear confirmation device are mounted on the mounting portion of the handle bracket so as to be exposed to the outside of the vehicle through the opening of the panel member. Backdoor structure. The panel member includes an inner bracket fixing portion that is formed to protrude toward the front of the vehicle from an inner corner portion that is formed by the inner vertical wall portion and the connecting portion, and the outer vertical wall portion and the connecting portion. an outer bracket fixing portion formed to protrude upward from the outer corner of the vehicle ;
The handle bracket is fixed to the inner bracket fixing part and the outer bracket fixing part ,
At least one of the inner bracket fixing part and the outer bracket fixing part is provided at a plurality of positions in the vehicle width direction at positions corresponding to both sides of the opening in the panel member and at positions corresponding to both sides of the handle bracket. 2. The backdoor structure according to claim 1 , further comprising a fixing point . The handle bracket has a rib-shaped portion extending along at least a rear portion of the periphery of the opening in the panel member,
The back door according to claim 1 or 2, characterized in that, in a state where the handle bracket is fixed above the flat part, a tip end portion of the rib-shaped part protrudes further downward from the vehicle than the flat part. structure. The back door structure according to any one of claims 1 to 3 , wherein the handle bracket has a water stop member at a position overlapping a peripheral edge of the opening in the panel member. According to any one of claims 1 to 4 , the grip portion of the handle bracket is provided with a door opening switch member and a lock opening/closing switch member that can be operated from outside the vehicle. backdoor structure. The back door structure according to any one of claims 1 to 5 , wherein the handle bracket has a harness holding portion for holding a harness.

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