CN110576727B - Vehicle body rear structure - Google Patents

Abstract

An object of the present invention is to provide a vehicle body rear structure capable of preventing a tailgate from interfering with the vehicle body even when it is forcibly closed. The rear structure of the vehicle body includes: a tailgate (1) that covers an opening (Vb) provided at the rear of the vehicle body (Va) in an openable and closable manner; 1) is provided on the center side in the vertical direction and protrudes toward the vehicle body (Va) side; 2) It is provided on the outside in the vehicle width direction and protrudes toward the vehicle body (Va) side.

Description

rear body structure

technical field

The present invention relates to a vehicle body rear structure.

Background technique

As the rear structure of the vehicle body, there is a tailgate that can be opened and closed to cover an opening provided at the rear of the vehicle body, and stoppers provided at the left and right lower corners on the inner side of the tailgate (for example, refer to Patent No. Literature 1).

In this conventional vehicle body rear structure, when the tailgate is closed, the stopper contacts the peripheral edge of the vehicle body opening to absorb a collision (operational load).

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2017-109585

Contents of the invention

However, when the tailgate is forcibly closed and an operation load greater than a predetermined value is input to the tailgate, the vicinity of the center of the outer end portion in the vehicle width direction of the tailgate may bend toward the vehicle body side. In this case, even if a stopper is provided at the lower corner of the tailgate as in Patent Document 1, the curved portion of the tailgate may interfere with the vehicle body.

The present invention has been made out of such considerations, and an object of the present invention is to provide a vehicle body rear structure capable of preventing a tailgate from interfering with the vehicle body even when it is forcibly closed.

In order to solve the above problems, the vehicle body rear structure of the present invention is characterized in that it includes: a tailgate that can be opened and closed to cover an opening provided at the rear of the vehicle body; The inner surface of the door is provided on the center side in the vertical direction and protrudes toward the vehicle body side; and the second stopper is provided on the inner surface of the tailgate in the vehicle width direction than the first stopper. Outboard and protruding toward the body side.

The effect of the invention

According to the vehicle body rear structure of the present invention, it is possible to prevent the tailgate from interfering with the vehicle body even when it is forcibly closed.

Description of drawings

FIG. 1 is a perspective view of a vehicle having a vehicle body rear structure according to an embodiment, as viewed obliquely from the rear left.

Fig. 2 is a front view of the tailgate of the embodiment seen from the front.

FIG. 3 is a partially enlarged view of FIG. 2 .

Fig. 4 is a sectional view taken along line IV-IV of Fig. 1 .

Fig. 5 is a V-V sectional view of Fig. 1 .

Explanation of reference signs

V vehicle (rear body structure)

Va body

Vb opening

1 tailgate

2 1st stop

3 2nd stopper

1a Inner panel (interior side of the tailgate)

1c Reinforcement parts

11 Outer end in vehicle width direction

12 Flange

2a top

3a top

D distance (2nd distance)

Detailed ways

Next, embodiments of the present invention will be described in detail with reference to appropriate drawings. In addition, "front and rear" and "up and down" indicated by appropriate arrows in each figure indicate the front and rear directions and up and down directions of the vehicle, and "left and right" indicate the left and right directions (vehicle width direction) viewed from the driver's seat.

As shown in FIG. 1, the vehicle V is a so-called hatchback. The vehicle V mainly includes a tailgate 1 , a first stopper 2 , a second stopper 3 , and a third stopper 4 that openably and closably cover an opening Vb provided at the rear of the vehicle body Va. In addition, since the structure of the vehicle body rear portion of the vehicle V is bilaterally symmetrical, only the left side will be described in the following description, and the description of the right side will be omitted.

The tailgate 1 is a member that rotates around one end (upper end in the embodiment). A substantially horizontally long rectangular rear glass 1d is provided on the upper side of the tailgate 1 . As shown in FIG. 2 , the tailgate 1 includes an inner panel 1 a arranged on the front side as the vehicle inner side, an outer panel 1 b arranged on the rear side of the inner panel 1 a as the vehicle outer side, and between the inner panel 1 a and the outer panel 1 b. Configuration of the strengthening part 1c. The inner panel 1a, the outer panel 1b, and the reinforcing member 1c are all made of metal.

The inner panel 1 a is a member constituting the vehicle interior surface of the tailgate 1 . A flange portion 12 protruding outward in the vehicle width direction is formed on the vertically central side of the vehicle width direction outer end portion 11 of the inner panel 1 a . The flange portion 12 is provided on the side of the rear glass 1d at a position substantially equal in height to the lower corner of the rear glass 1d.

As shown in FIG. 3, the flange part 12 is comprised including the inner normal part 12a and the inner shelf part 12b. The inner shelf portion 12b is located above the inner general portion 12a and on the outer side in the vehicle width direction. The inside general part 12a and the inside shelf part 12b are provided continuously via the step part 12h. The stepped portion 12h is inclined so as to be located forward as it goes from the inner general portion 12a to the inner shelf portion 12b.

As shown in FIG. 4 , the inner general portion 12 a is a wall portion on which the first stopper 2 is attached. The inner general portion 12a extends in the vehicle width direction and in the vertical direction. The 1st attachment hole 12i for attaching the 1st stopper 2 is formed in the inner normal part 12a. Although the number of the 1st attachment hole 12i is not specifically limited, One is provided in this embodiment (refer FIG. 3).

On the inner side in the vehicle width direction of the inner general portion 12a, an inner groove portion 12c that is recessed toward the rear than the inner general portion 12a is continuously provided. The weather strip S is in elastic contact with the bottom surface of the inner groove portion 12c. The weather strip S is attached to the peripheral edge Vc of the opening Vb of the vehicle body Va, and seals the gap between the vehicle body Va and the tailgate 1 . A first contact surface Vd and a second contact surface Ve are formed on the outer side of the weather strip S in the vehicle width direction on the peripheral edge Vc of the opening Vb (see FIG. 5 ). The first contact surface Vd is a flat surface that contacts the first stopper 2 . The second contact surface Ve is a flat surface that contacts the second stopper 3 . The flange portion 12 faces the peripheral edge Vc of the opening portion Vb in the front-rear direction in the fully closed state of the tailgate 1 .

On the inner side in the vehicle width direction of the inner groove portion 12c, an inner bead portion 12d bulging forward is continuously provided. The inner bead portion 12d has a U-shape (approximately U-shape) in plan view and cross-section. The inner rib portion 12d increases the strength and rigidity of the inner panel 1a. On the inner side of the inner bead portion 12d in the vehicle width direction, the inner connection portion 12e extending substantially linearly in the vehicle width direction is continuously provided. The inner bead portion 12d and the inner connecting portion 12e are located inward in the vehicle width direction with respect to the peripheral edge Vc of the opening Vb in the fully closed state of the tailgate 1 .

As shown in FIG. 5, the inner shelf part 12b is a flat wall part to which the 2nd stopper 3 is attached. The inner shelf portion 12b extends in the vehicle width direction and in the vertical direction. A second mounting hole 12j for mounting the second stopper 3 is formed in the inner shelf portion 12b. The number of the second mounting holes 12j is not particularly limited, but in the present embodiment, three are provided at intervals in the vertical direction (see FIG. 3 ).

The inner shelf portion 12b protrudes forward toward the vehicle body Va side than the inner general portion 12a (see FIG. 4 ) and the inner groove portion 12c. The inner shelf portion 12b is continuously provided on the outer side in the vehicle width direction of the inner groove portion 12c. A hemmed portion 12g is provided on the outside of the inner general portion 12a and the inner shelf portion 12b in the vehicle width direction via a stepped portion 12f positioned forward as it goes outward in the vehicle width direction. The outer peripheral end portions of the inner panel 1a and the outer panel 1b are joined to each other by the hemming portion 12g.

As shown in FIG. 3 , the reinforcing member 1c is attached to the vehicle outer side (rear surface) of the inner panel 1a, and is provided at positions corresponding to the first stopper 2 and the second stopper 3 in the front-rear direction. The reinforcement member 1c mainly reinforces the portion from the edge portion on the rear glass 1d side of the inner panel 1a to the flange portion 12 . The reinforcing member 1 c is provided at a position overlapping with a part of the second stopper 3 in this embodiment, but may be provided at a position overlapping with the entire second stopper 3 .

The reinforcing member 1c is formed into a predetermined complex shape by bending a metal plate. In the reinforcement member 1c, the part corresponding to the inside normal part 12a, the inside shelf part 12b, etc. has the structure shown in FIG.4 and FIG.5. The reinforcement member 1c is comprised including the reinforcement side general part 13a and the reinforcement side shelf part 13b.

As shown in FIG. 4 , the reinforcement-side general portion 13 a is a wall portion provided at a position corresponding to the inside general portion 12 a in the front-rear direction. The reinforcement-side general portion 13a extends in the vehicle width direction and in the vertical direction. The reinforcement-side general portion 13a is separated from the inner general portion 12a at a predetermined interval in the front-rear direction. A through hole 13f for avoiding interference with the first stopper 2 is formed in the reinforcement-side general portion 13a. The through hole 13f is formed with a diameter slightly larger than that of the first stopper 2 .

On the inner side in the vehicle width direction of the reinforcement-side general portion 13a, there is continuously provided a reinforcement-side groove portion 13c that is recessed backward from the reinforcement-side general portion 13a. The reinforcement side groove part 13c is provided in the position corresponding to the inside groove part 12c in the front-back direction.

A reinforcement-side bead portion 13d bulging forward is continuously provided on the inside of the reinforcement-side groove portion 13c in the vehicle width direction. The reinforcing side bead portion 13d is provided at a position corresponding to the inner bead portion 12d in the front-rear direction. The reinforcing side bead portion 13d is separated from the inner bead portion 12d at a predetermined interval in the front-rear direction. The reinforcement-side rib portion 13 d has a U-shape (approximately U-shape) in plan view and cross-section. The reinforcement-side rib portion 13d increases the strength and rigidity of the reinforcement member 1c.

A reinforcement-side connecting portion 13e extending substantially linearly in the vehicle width direction is continuously provided inside the reinforcement-side bead portion 13d in the vehicle width direction. The reinforcement-side connecting portion 13e overlaps the inner connecting portion 12e of the inner panel 1a and the outer panel 1b, and is fixed by welding or the like.

As shown in FIG. 5, the reinforcement side shelf part 13b is a flat wall part provided in the position corresponding to the inside shelf part 12b in the front-back direction. The reinforcement side shelf portion 13b extends in the vehicle width direction and in the vertical direction, and overlaps the inner shelf portion 12b. The reinforcement-side shelf portion 13b protrudes forward toward the vehicle body Va side than the reinforcement-side general portion 13a (see FIG. 4 ) and the reinforcement-side groove portion 13c. The reinforcement-side shelf portion 13b is continuously provided on the outside of the reinforcement-side groove portion 13c in the vehicle width direction. The reinforcement side shelf part 13b is formed with the through-hole 13g for avoiding interference with the 2nd stopper 3. As shown in FIG. The through hole 13g is formed with a diameter slightly larger than that of the clip 32b of the second stopper 3 . The through hole 13g is provided at a position communicating with the lowermost second attachment hole 12j among the upper and lower second attachment holes 12j.

The first stopper 2 is a shock absorbing member that always absorbs an operation load when the tailgate 1 is closed. The first stopper 2 is provided on the center side in the vertical direction on the vehicle interior surface of the tailgate 1 . The 1st stopper 2 is provided in the inner general part 12a of the flange part 12. As shown in FIG. The shape of the first stopper 2 is not particularly limited, but as shown in FIG. 4 , in this embodiment, it has a substantially columnar shape extending in the front-rear direction. The first stopper 2 can be appropriately selected from materials exhibiting cushioning performance such as rubber, elastic body, and resin. When the tailgate 1 is closed, the first stopper 2 absorbs the operation load by being crushed in the front-rear direction.

A spiral mounting groove 21 is engraved on the rear outer peripheral surface of the first stopper 2 . The edge of the first mounting hole 12i is inserted into the mounting groove 21 and locked. The rear end side of the first stopper 2 is loosely inserted into the through hole 13f of the reinforcement member 1c. The first stopper 2 protrudes forward from the inner general portion 12a toward the vehicle body Va side. The tip (tip) 2a of the first stopper 2 is a flat surface. In the fully closed state of the tailgate 1 , the tip 2a of the first stopper 2 is in contact with the first contact surface Vd of the vehicle body Va. That is, in this embodiment, the distance (first distance) between the front end 2a of the first stopper 2 and the vehicle body Va in the fully closed state of the tailgate 1 is zero.

As shown in FIG. 1 , the third stopper 4 is a buffer member that always absorbs an operation load when the tailgate 1 is closed. The third stoppers 4 are provided one on each of the left and right lower corners on the vehicle interior side of the tailgate 1 . When the tailgate 1 is closed, the third stopper 4 is crushed in the front-rear direction to absorb the operation load. The configuration of the third stopper 4 is the same as that of the first stopper 2, and thus detailed description thereof will be omitted.

As shown in FIG. 3 , the second stopper 3 is a buffer member that absorbs the operating load when the tailgate 1 is forcibly closed with a predetermined or greater operating load. That is, the second stopper 3 is configured so as not to come into contact with the vehicle body Va when the tailgate 1 is closed under a normal (lower than predetermined) operation load. This point will be described in detail later.

The second stopper 3 is provided on the inner shelf portion 12 b of the flange portion 12 . The second stopper 3 is provided on the vehicle inner side surface of the tailgate 1 on the outer side in the vehicle width direction than the first stopper 2 . In the present embodiment, a part of the second stopper 3 including the outer end in the vehicle width direction is located outside the first stopper 2 in the vehicle width direction. 1 The stopper 2 is located on the outside in the vehicle width direction. It is sufficient that at least the outer end portion of the second stopper 3 in the vehicle width direction is located outside the first stopper 2 in the vehicle width direction.

The second stopper 3 is provided above the first stopper 2 in this embodiment, but may be provided at the same height as the first stopper 2 . The shape of the second stopper 3 is not particularly limited, but in the present embodiment, it has a rectangular shape extending in the vertical direction when viewed from the front of the vehicle. As shown in FIG. 5 , the second stopper 3 is composed of a buffer portion 31 and a fixing portion 32 .

The buffer portion 31 is a portion that absorbs an operation load when the tailgate 1 is forcibly closed. The shape of the buffer portion 31 is not particularly limited, but in the present embodiment, it has a rectangular column shape extending in the vertical direction. The cushioning portion 31 can be appropriately selected from materials exhibiting cushioning performance, such as rubber, elastic body, and resin. When the tailgate 1 is forcibly closed, the buffer portion 31 is crushed in the front-rear direction to absorb the operation load. The tip (tip) of the buffer portion 31 is a flat surface. The buffer portion 31 has a lateral width larger than the diameter of the second mounting hole 12j, and is in contact with the front side edge of the second mounting hole 12j.

The fixing portion 32 is a portion fixed to the inner panel 1a and the reinforcing member 1c. The fixing portion 32 is formed separately from the buffer portion 31 and is made of a harder material (for example, a resin material) than the buffer portion 31 . The fixing portion 32 is composed of a base portion 32a and a plurality of clips 32b. The base portion 32 a has a substantially comb-tooth shape and is embedded in the buffer portion 31 . The clip 32b is in the shape of an elastic claw protruding rearward from the rear end of the base 32a. The clip 32b protrudes to the outside of the buffer portion 31 .

As shown in FIG. 3, the fixing part 32 is provided in three positions corresponding to the 2nd attachment hole 12j in the up-down direction. The lowermost clamp 32b is inserted into the second mounting hole 12j and locked to the edge of the second mounting hole 12j (see FIG. 5 ), and the rear end side of the clamp 32b is loosely inserted into the penetration of the reinforcing member 1c. In hole 13g. The specific illustration is omitted, but the two clips 32b located at the uppermost side and the middle are also respectively inserted into the second mounting hole 12j and locked with the edge of the second mounting hole 12j.

As shown in FIG. 5 , (the buffer portion 31 ) of the second stopper 3 protrudes forward from the inner shelf portion 12 b toward the vehicle body Va side. In the fully closed state of the tailgate 1, the tip (front end) 3a of the second stopper 3 is separated from the second contact surface Ve of the vehicle body Va. Thereby, when the tailgate 1 is forcibly closed and the vehicle width direction outer end portion (including the flange portion 12 ) of the tailgate 1 is bent toward the vehicle body Va side in the arrow Y direction, the second stopper 3 can be aligned with the vehicle body Va. Va contacts, and the operation load can be absorbed by the second stopper 3 .

The dimension of the portion protruding from the vehicle interior side surface of the inner panel 1 a in the first stopper 2 shown in FIG. 4 is defined as a protruding dimension L1. The dimension of the portion protruding from the vehicle interior side surface of the inner panel 1a in the second stopper 3 shown in FIG. 5 is defined as a protruding dimension L2. The protrusion dimension L2 is smaller than the protrusion dimension L1 (L2<L1). In other words, the distance between the tip end 2a of the first stopper 2 and the vehicle body Va (first distance = zero) in the fully closed state of the tailgate 1 is smaller than that of the second stopper 3 in the fully closed state of the tailgate 1 . The distance D (second distance D) between the tip 3a and the vehicle body Va is small. With such a size relationship, when the tailgate 1 is closed, the first stopper 2 can be brought into contact with the vehicle body Va earlier than the second stopper 3 .

The vehicle V having the vehicle body rear structure according to the embodiment of the present invention is basically configured as described above, and the operation and effect thereof will be described below.

In the rear structure of the vehicle body according to this embodiment, as shown in FIG. A second stopper 3 protruding toward the vehicle body Va side is provided on the vehicle interior surface of the door 1 on the outer side in the vehicle width direction than the first stopper 2 . Therefore, when the tailgate 1 is forcibly closed and the outer end portion in the vehicle width direction of the tailgate 1 is bent, the second stopper 3 provided on the outer side in the vehicle width direction than the first stopper 2 will be separated from the vehicle body Va. Abut. As a result, in the vehicle body rear portion structure of the present embodiment, it is possible to prevent the tailgate 1 from interfering with the vehicle body Va even when it is forcibly closed.

In the rear structure of the vehicle body according to the present embodiment, as shown in FIGS. 4 and 5 , the first distance between the top end 2 a of the first stopper 2 and the vehicle body Va in the fully closed state of the tailgate 1 is larger than that of the tailgate 1 . The second distance D between the tip end 3a of the second stopper 3 and the vehicle body Va in the fully closed state of 1 is small. In this configuration, when the tailgate 1 is closed, the first stopper 2 comes into contact with the vehicle body Va earlier than the second stopper 3 . Therefore, when the tailgate 1 is closed under a normal operation load, only the first stopper 2 can bear the operation load on the vertical center side of the tailgate 1, and the tailgate 1 can be strongly tightened with a predetermined or greater operation load. When closing, the operation load can be received by both the first stopper 2 and the second stopper 3 . As a result, when adjusting the distance between the tailgate 1 and the vehicle body Va in the fully closed state, it is only necessary to adjust the first stopper 2, so that the efficiency of the assembly work and the like can be improved. .

In the vehicle body rear structure of the present embodiment, as shown in FIG. moving parts 3. If the tailgate 1 is forcibly closed, there is a possibility that the flange portion 12 may be bent and come into contact with the vehicle body Va. However, according to this configuration, since the second stopper 3 provided on the flange portion 12 contacts the vehicle body Va, even under strong force, the tailgate 1 may be closed. It is also possible to prevent the flange portion 12 from interfering with the vehicle body Va when it is closed.

In the vehicle body rear structure of this embodiment, as shown in FIGS. 4 and 5 , the tailgate 1 has a reinforcement member 1c arranged between the inner panel 1a and the outer panel 1b, and the second stopper 3 is provided on the inner panel. 1a on. The reinforcing member 1c is provided at a position corresponding to the second stopper 3 in the front-rear direction. In this configuration, the strength around the second stopper 3 of the inner panel 1a can be enhanced by the reinforcing member 1c.

As mentioned above, although embodiment of this invention was described in detail with reference to drawings, this invention is not limited to this, It can change suitably in the range which does not deviate from the summary of invention.

In the present embodiment, the rear body structure of the present invention is applied to the rear body structure of the lift-up type, but the present invention may also be applied to the rear body of the horizontal opening type having the tailgate 1 that pivots around the side end. structure. In this embodiment, the reinforcement member 1c is provided, but the reinforcement member 1c may be omitted. In this embodiment, the first stopper 2 is not attached to the reinforcement member 1c with the through-hole 13f of the reinforcing member 1c as the escape hole, but it is also possible to use the through-hole 13f as the mounting hole and place the first stopper 2 Attached to reinforcement member 1c. In the present embodiment, the second stopper 3 is not attached to the reinforcement member 1c by using the through hole 13g of the reinforcement member 1c as an escape hole, but the second stopper 3 may be attached by using the through hole 13g as an attachment hole. In the reinforcement part 1c.

Claims (3)

1. A vehicle body rear structure characterized by comprising:

a tailgate that covers an opening provided at a rear portion of a vehicle body so as to be openable and closable;

a 1 st stopper provided on a vehicle interior side surface of the tailgate at a center side in a vertical direction and protruding toward the vehicle body side; and

a 2 nd stopper provided on the vehicle-width-direction outer side of the 1 st stopper on the vehicle-interior side surface of the tailgate and protruding toward the vehicle body side,

a 1 st distance between a top end of the 1 st stopper and the vehicle body in a fully closed state of the tailgate is shorter than a 2 nd distance between a top end of the 2 nd stopper and the vehicle body in a fully closed state of the tailgate,

in a fully closed state of the tailgate, the 2 nd stopper is separated from the vehicle body.

2. The vehicle body rear structure according to claim 1,

a flange portion protruding outward in the vehicle width direction is formed at an outer end portion in the vehicle width direction of the tailgate,

the 2 nd stopper is provided to the flange portion.

3. The vehicle body rear structure according to claim 1 or 2,

the tailgate includes:

an inner panel disposed on the vehicle interior side;

an outer panel disposed on a vehicle exterior side of the inner panel; and

a reinforcing member disposed between the inner panel and the outer panel,

the 2 nd stopper is provided on the inner panel,

the reinforcing member is provided at a position corresponding to the 2 nd stopper in the front-rear direction.

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