JP2002106230A - Locking structure of side opening and closing body of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking structure of a side opening and closing body of a vehicle capable of achieving locking of both of front doors and rear doors in a minimum simple constitution by providing a lock means for locking one door on the car body and a locking means for locking the other door on the above one door in a vehicle having a door of bi-parting doors structure. SOLUTION: In the vehicle of the bi-parting doors structure, the side part of the car body is provide with a getting on and off port 19 for a front seat and a getting on and off port 20 for a rear seat, the port 19 for the front seat is opened and closed by a front door 2 having a hinge part at the front part, and the port 20 for the rear seat is opened and closed by a rear door 3 having a hinge part at the rear part. The vehicle is provided with the lock means for locking one door 3 on the car body and the lock means 35, 36 for locking the other door 2 on the above one door 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle having a front door (front door) having a hinge portion at a front portion thereof, and a front door having a hinge portion at a front portion, and having a hinge portion at a rear portion. The present invention relates to a lock structure of a side opening / closing body of a vehicle including a side door having a double door structure that opens and closes with a rear door (rear door).

[0002]

2. Description of the Related Art Conventionally, in a side door on the side of a vehicle,
In order to improve the occupant's getting on and off, a side door (side opening / closing body) having a center pillar-less double door structure has been developed.
The side door of this double door structure has two doors, a front door at a front end hinge and a rear door at a rear end hinge, with respect to a large side opening (entrance / exit) formed on the side of the vehicle body. By opening the opening, a large side opening (entrance / exit) on the side of the vehicle body is opened to improve the occupant's getting on and off (see Japanese Patent Application Laid-Open No. 57-44075).

A lock mechanism is provided above and below the rear end of the front door, and a striker is provided on the roof side rail and side sill of the vehicle body at a position corresponding to each of the lock mechanisms. A lock device on the front side that locks the front door is configured by both of them.

Similarly, lock mechanisms are provided above and below the front end of the rear door, and strikers are provided on the roof side rails and side sills of the vehicle body at positions corresponding to the respective lock mechanisms. A locking device on the rear side that locks the rear door is formed by both of them.

As described above, the conventional locking structure for the side opening / closing body of the vehicle requires a total of four locking devices including a locking mechanism and a striker, and has a problem that the structure is complicated.

On the other hand, Japanese Patent Laid-Open Publication No. Hei 8-142680 discloses a lock pillar extending vertically in a rear opening of a vehicle, a left door at a left end hinge, and a right door at a right end hinge. A left door and a right door are provided with a left striker and a right striker, while a left door and a right door each have a double door structure provided with a lock mechanism that engages with each of these strikers.

The door with the double door structure can be applied to the structure of a side opening / closing body for opening / closing an entrance on the side of a vehicle. In this case, strikers are provided at both front and rear portions of a center pillar. The length of the center pillar in the front-rear direction of the vehicle becomes large, and the entrance and exit for the front seat and the rear seat for the front seat, which are defined by the center pillar, become narrower. was there.

[0008]

SUMMARY OF THE INVENTION The present invention provides a vehicle provided with a door having a double door structure, provided with a lock means for locking one door to a vehicle body and a lock means for locking the other door to one door. Accordingly, an object of the present invention is to provide a lock structure of a side opening / closing body of a vehicle, which can achieve door lock of both a front door and a rear door with a minimum necessary simple configuration.

[0009]

SUMMARY OF THE INVENTION A locking structure for a side opening / closing body of a vehicle according to the present invention has a front seat entrance / exit and a rear seat entrance / exit at a side of a vehicle body. In the vehicle with the double door structure, the opening and closing of the door is opened and closed by a front door having a hinge at the front, and the entrance for the rear seat is opened and closed by a rear door having a hinge at the rear. The vehicle has a lock means for locking to the vehicle body and a lock means for locking the other door to one door.

The vehicle body provided with the locking means for locking one of the doors of the above construction may be either a member at the upper part of the vehicle body such as a roof side rail or a member at the lower part of the vehicle body such as a side sill.

Further, the locking means having the above structure can be set in a locking device including a striker and a locking mechanism. Furthermore, the vehicle with the double door structure having the above configuration can be set as either a center pillar-less vehicle or a vehicle having a center pillar.

With the above structure, the front door and the rear door can be connected to each other with a minimum necessary simple structure of the locking means for locking one door to the vehicle body and the locking means for locking the other door to the one door. A door lock for both doors can be achieved.

[0013] In one embodiment of the present invention, the one door is set as a rear door, the other door is set as a front door, and the rear of the front door is up and down at the front of the rear door. It is locked at the middle part in the direction. According to the above configuration, the front door, which has a large degree of opening and closing, is locked at the middle portion in the vertical direction of the rear door, so that stable support of the front door can be achieved.

In one embodiment of the present invention, a center pillar is provided for partitioning the front seat entrance and the rear seat entrance, and the rear end of the front door covers the outside of the center pillar. And the front end of the rear door are arranged close to each other, and a lock mechanism provided on the other door is fitted to a striker provided on one of the doors.

According to the above configuration, since the locking is performed between the front door and the rear door, the center pillar does not require any locking means such as a lock mechanism or a striker, and therefore, the center pillar can be made thinner. The degree of freedom in shape and shape is improved, and the downsizing of the center pillar improves the getting on and off properties. In addition, the shape strength of the side opening having a large opening area, particularly the torsional rigidity of the body is improved by the center pillar, and the rigidity and strength of the vehicle body can be secured.

In one embodiment of the present invention, at least one of the rear end of the front door and the front end of the rear door and the center pillar are arranged so as to overlap in the vehicle width direction when viewed from a plane. It is a thing.

According to the above configuration, the center pillar and the rear end of the front door or / and the front end of the rear door form a superposed structure in the vehicle width direction, so that the rigidity at the time of side collision when the door is closed is improved. And the safety can be further improved.

In one embodiment of the present invention, a front end of the rear door extends forward from the center pillar to form an extended portion, and both doors are located between the extended portion and the front door. It is configured to be locked.

With the above structure, the lock positions of both doors can be set to be offset from the front of the center pillar, and the size of the center pillar in both the front-rear direction and the vehicle width direction can be reduced. As a result, it is possible to achieve both improvement in the getting on and off property by downsizing the center pillar and improvement in rigidity at the time of a side collision.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show a lock structure of a side opening / closing body of a vehicle. First, a side body structure of a vehicle will be described with reference to FIGS.

FIG. 1 is an overall perspective view of the vehicle, FIG. 2 is an overall side view of the vehicle, and FIG. 3 is an overall side view of the vehicle with a front door and a rear door removed. As shown in FIGS. 1 and 2, a side door composed of a front door 2 and a rear door 3 is provided on a side surface of the vehicle 1. A front end of the front door 2 and a rear end of the rear door 3 are respectively provided. Front door hinge 4 and rear door hinge 5 as hinge parts
(See FIG. 3) to constitute a double door structure side door.

The front door 2 and the rear door 3 constituting these side doors are respectively composed of door panels 6 and 7, door sashes 8 and 9 and window glasses 10 and 11. Side impact bars 12, 13 extending in the front-rear direction are provided.

The front door 2 has a door outer handle 14 for opening and closing the front door 2 from outside the vehicle.
And a door mirror 15 for visually checking the rear of the vehicle.

The door of the double door structure of this embodiment is configured such that the front door 2 is preferentially opened, and the rear door 3 is allowed to be opened after the front door 2 is opened.

A side opening is provided on the side of the side door toward the passenger compartment.
A center pillar 18 extending and connecting the upper edge 16 and the lower edge 17 in the vertical direction (see the entrances 19 and 20 described later),
The front door 2 and the rear door 3 are installed so as to substantially coincide with contact positions when the doors are closed.

A front seat entry / exit 19 and a rear seat entry / exit 20 defined by the center pillar 18 are formed on the side of the vehicle body. The front seat entry / exit 19 is opened and closed by the front door 2. The rear entrance 20 is opened and closed by the rear door 3.

The above-mentioned center pillar 18 is different from a normal center pillar and is constituted by a member having a closed cross-sectional structure separate from the vehicle body panel. (Hydraulic forming process).

By forming the center pillar 18 by hydroforming, it is possible to form the center pillar 18 into a free shape while securing strength, and it is possible to omit the joining flange portion of the center pillar 18. To this extent, the center pillar 18 can be downsized, and the entrances 19, 20 can be set large.

The center pillar 18 may be constituted by a panel member other than the hydroform member.

After the center pillar 18 is formed into a rectangular cylindrical shape, it is fixed to the upper edge 16 and the lower edge 17 of the side opening. The center pillar 18 has a large opening area. By improving the shape strength (particularly the torsional rigidity of the part D), the rigidity and strength required for a general monocoque body are secured.

The center pillar 18 is not provided with a lock mechanism for locking the front door 2 or the rear door 3 or a seal member for ensuring a sealing property between the door and the vehicle. , Front door 2, rear door 3
Since neither of the doors is supported, the strength can be set to a level that at least secures the shape strength of the side opening.

FIG. 4 is a perspective view showing the structure for attaching the center pillar 18 to the vehicle body, as viewed from the vehicle interior. The center pillar 18 has its upper end 18a connected to the upper edge 1 of the side opening.
A roof side member 21 extending in the vehicle front-rear direction as 6
The lower end 18b is fixed to the side sill 22 extending in the vehicle front-rear direction as the lower edge 17 of the side opening by a plurality of fastening means, for example, fixing bolts 23.

As described above, the roof side member 21 and the side sill 2 as rigid members forming the frame portion of the vehicle body are provided.
2, by directly fixing the center pillar 18, the center pillar 18 fulfills a frame function, and the rigidity of the vehicle body constituted by the monocoque body can be reliably increased without increasing the vehicle weight. .

Trim locking holes 18c, 18d for locking and fixing a trim upper 24 and a trim lower 25 as interior members (trim members) are provided on the side surfaces of the center pillar 18 on the passenger compartment side.
Are formed in the vertical direction, and these trim locking holes 18 are formed.
For c and 18d, trim upper 24 and trim lower 2
The center pillar 18 is fitted with a trim upper 24 and a trim lower 25 by locking and fixing the 5.

By mounting the trim upper 24 and the trim lower 25 in this manner, the center pillar 18 can be configured so that the side surface on the vehicle interior side is not directly exposed to the vehicle interior.

A grip fixing hole 18e for fixing the assist grip 26 is formed on the side surface on the vehicle rear side of the center pillar 18, and the assist grip 26 is fixed to the center by fixing the assist grip 26 to the grip fixing hole 18e. It is attached to the side surface of the pillar 1825 on the vehicle rear side.

By attaching the assist grip 26 to the center pillar 18 in this manner, the assist grip 26 is provided at a position where the assist grip 26 can be easily gripped, and the rear passenger can grip the assist grip 26 when getting on and off. The user can raise the body and easily get on and off the vehicle.

Next, the locking structure of the side opening / closing body (see the front door 2 and the rear door 3) of the vehicle will be described in detail with reference to FIGS. FIG. 5 shows a cross section taken along line AA of FIG. 2, and FIG. 6 shows a cross section taken along line BB of FIG. FIG.
FIG. 3 is a cross-sectional view illustrating a contact position of a door sash 8, 9 between a front door 2 and a rear door 3 when the door is closed.

The front door 2 has a window glass 10
And a door sash 8 for supporting the window glass 10 with an adhesive 27 therebetween, and a trim member 28 for housing the side surface of the door sash 8 in the cabin. Also, rear door 3
Has a window glass 11 and this window glass 11
Is provided with a door sash 9 for supporting the sash via an adhesive 29.

As shown in FIG. 5, the rear end of the front door 2 and the front end of the rear door 3 are disposed close to each other so as to cover the outside of the center pillar 18 (specifically, the rear end of the front door 2 and the rear door 3). 3 is disposed so as to overlap the front end of the rear door 3 by a predetermined amount in the front-rear direction of the vehicle), and a weather strip 30 as a sealing member provided at the front end of the rear door 3 is provided.
Abuts against the rear end of the front door 2 to seal between the doors 2 and 3. That is, the center pillar 18 is not provided with a seal member.

Here, the door sash 9 of the rear door 3 is
Unlike the door sash 8 of the front door 2, a receiving portion 9a is formed to support the rear end of the front door 2 and to enter the passenger compartment side of the front door 2.

The above-mentioned weather strip 30 is mounted on the tip of the receiving portion 9a and seals the inside and outside of the vehicle.
The weather strip 30 is configured to secure a sealing function by abutting the rear end (door sash 8) of the front door 2.

Furthermore, the rear end of the front door 2, the front end of the rear door 3, and the center pillar 18 overlap (overlap) in the vehicle width direction when viewed from above, so that these three members 2, 3,
18 are provided. In other words, the closed section 31 of the center pillar 18 and the door sash 8 of the front door 2
, And a closed section 33 of the door sash 9 in the rear door 3.
1 and 33 are arranged in an overlapping manner in the vehicle width direction, and at the position corresponding to the receiving portion 9a, the closed sections 31, 33 and 32 are arranged in an overlapping manner in the vehicle width direction.

The center pillar 18 is arranged on the rear side of the door sash 9 of the rear door 3 so as to prevent the door sash 9 from being exposed to the vehicle interior, thereby improving the appearance of the vehicle interior. Further, even in the event of a side collision, even if any of the front doors 2 and the rear doors 3 enters the vehicle interior, all of the doors can be received by the center pillar 18 to prevent the doors 2 and 3 from entering the vehicle interior. it can. In FIG. 5, F indicates the front of the vehicle, R indicates the rear of the vehicle, IN indicates the inside of the vehicle, and OUT indicates the outside of the vehicle.

FIG. 6 is a sectional view showing the contact positions of the door panels 6 and 7 of the front door 2 and the rear door 3 when the door is closed. The front door 2 includes a door panel 6 including a door inner panel 6 a and a door outer panel 6 b, a door trim 34 mounted on the vehicle panel side of the door panel 6, a side impact bar 12 disposed inside the door panel 6,
A lock mechanism 36 that engages with a striker 35 provided on the rear door 3 is provided.

The rear door 3 includes a door panel 7 including a door inner panel 7a and a door outer panel 7b.
A door trim 37 mounted on the vehicle compartment side of the door panel 7;
A side impact bar 13 disposed inside the door panel 7, and a front end face 7 c of the door panel 7.
Is provided with a striker 35 that engages with a lock mechanism 36. A receiving portion 7 d that enters the vehicle compartment side of the front door 2 is formed at the front end of the door panel 7 of the rear door 3 so as to support the rear end of the front door 2.

The weather strip 30 as a sealing member for sealing the inside and outside of the vehicle is provided at the tip of the receiving portion 7d.
Is attached, and this weather trip 30 is attached to the front door 2
The rear end abuts to ensure a sealing function. A center pillar 18 is provided with a trim lower 25 attached to the rear door 3 on the vehicle interior side.

The position where the center pillar 18 is disposed is on the vehicle interior side of the position where the striker 35 is provided, and the mounting brackets 12a, 1 of the side impact bars 12, 13 are located.
3a, it is set at a position where it substantially overlaps.

The rear end of the front door 2 and the front end of the rear door 3 are connected to the center pillar 18 similarly to the cross sections of the door sashes 8 and 9 in FIG. The weather strip 30 provided at the front end of the rear door 3 abuts against the rear end of the front door 2 to cover the outside, and seals between the two doors 2 and 3. It is configured to That is, the center pillar 18 is not provided with a seal member.

Further, in order to improve the side impact rigidity, the rear end of the front door 2, the front end of the rear door 3, and the center pillar 18
These three members 2, 3, and 18 are arranged so that they overlap in the vehicle width direction when viewed from a plane.

As shown in FIGS. 5 and 6, the rear end of the front door 2 and the front end of the rear door 3 are disposed close to each other to cover the outer portion of the center pillar 18, and a sealing member is provided only on the door side. Is provided, and the center pillar 18 side has a sealless structure. next,
The lock structure of the side opening / closing body of the vehicle will be described in detail with reference to FIGS. 7 to 11 and FIG. FIG. 7 is an enlarged cross-sectional view of a main part taken along line CC of FIG. 2, and a side sill 22 extending in the front-rear direction of the vehicle is formed by joining a side sill inner 22a and a side sill outer 22b, and extends in the same direction. This is a vehicle body rigid member having a closed cross section 38, and a side sill reinforcement (not shown) is provided in the side sill 22 as necessary, and between the left and right side sills 22 (see FIGS. 7 and 4). ), A floor panel 39 is stretched substantially horizontally, and a floor mat 40 is placed on the floor panel 39.

A weather strip 41 as a seal member is fitted to the upper joint between the side sill inner 22a and the side sill outer 22b, and a trim member 42 provided on the vehicle side of the side sill inner 22a has a The lip portion 41a of the weather strip 41 is brought into contact with the rear door 3 and the side sill 22 with the weather strip 41.
The seal is between.

Further, a scarf plate 43 is provided on the upper side of the side sill outer 22b. A lock mechanism 44 for locking the rear door 3 as one door to the vehicle body is mounted inside the upper side of the side sill outer 22b of the side sill 22 so as to be located within the closed section 38.

The door inner panel 7 of the rear door 3 as one of the doors corresponds to the lock mechanism 44.
A striker 45 is attached to the lower part of a.

On the other hand, as already shown in FIG. 6, a striker 35 is provided at a front middle portion of the rear door 3 in the vertical direction.
At the rear of the front door 2 as the other door, a lock mechanism 36 that engages with the striker 35 is provided.

The striker 45 below the rear door 3 has a single unit structure shown in a bottom view in FIG. 8, and a side view in FIG. 8 as shown in FIG. That is, a base plate 46 for fixing the above-described striker 45 is provided, and two mounting holes 47,
A release lever 49 (lock mechanism releasing element) that is rotatable about a support shaft 48 is provided.

A coil spring 50 is wound around the outer periphery of the support shaft 48, and one end 5 of the coil spring 50 is
0a is locked in the notch 49a of the release lever 49,
The other end 50b is locked by a stopper 46a integrally formed with the base plate 46, and the coil spring 50 urges the release lever 49 to the normal position shown in FIGS.

The lower end 49a of the release lever 49 extends toward the lock mechanism 44 as shown in FIG.
On the other hand, an L-shaped swing arm 51 is fitted and fixed to the support shaft 48, and the free end of the swing arm 51 has a cable 5 attached thereto.
When the cable 52 is operated in the direction of arrow a in FIGS. 8 and 9, the release lever 49 is connected to the support shaft 4.
8 is configured to rotate in the direction of arrow b in FIG. 8 against the urging force of the coil spring 50.

A protruding piece 53 is provided integrally with the base member 46, and an outer cable holder 54 is attached to the protruding piece 53. The above-described cable 52 supported by the outer cable holder 54 is provided. Is connected to the rear door outer handle 55 shown in FIG. 1 through the space between the door inner panel 7a and the door outer panel 7b, that is, through the internal space of the door panel 7.

When the above-described base member 46 is attached to the lower part of the rear door 3 as shown in FIG.
And the release lever 49 extends downward from the lower portion of the rear door 3, while the swing arm 51, the cable 52, and the outer cable holder 54 are located between the door inner panel 7a and the door outer panel 7b (the inner space of the door panel 7). Is configured.

The lock mechanism 44 for locking and unlocking the striker 45 is configured as shown in FIGS. That is, the lock mechanism 44 is
1 and a lock disk 60 that is rotatable about a support shaft 58 and is urged by a spring 59.
0, the striker 45 is engaged with the U-shaped groove of the lock disk 60, and the rear door outer handle 55 (see FIG. 1) and the cable 52 (see FIG. 9).
11), the release lever 49 is rotated from the state of FIG. 10 in the direction of the arrow b as shown in FIG. 11, and the locking plate 57 is pressed by the release lever 49. Then, as shown in FIG. 11, the lock of the striker 45 by the U-shaped groove of the lock disk 60 is released.

As described above, the locking structure of the side opening / closing body of the vehicle according to the embodiment shown in FIGS. 1 to 11 has a front seat entrance 19 and a rear seat entrance 20 on the side of the vehicle body. The front door 2 is opened and closed by the front door 2 having a front door hinge 19 (see front door hinge 4), and the rear seat door 20 is hinged to the rear (rear door hinge 5). reference)
A lock means (see striker 35 and lock mechanism 44) for locking one of the doors (rear door 3 in this embodiment) to a vehicle body (see side sill 22) in a double door open / close structure vehicle that opens and closes with rear door 3 having A lock means (see the striker 35 and the lock mechanism 36) for locking the other door (the front door 2 in this embodiment) to the one door is provided.

With this configuration, one door (the rear door 3
(See each element 44, 45)
) And locking means (see the respective elements 35 and 36) for locking the other door (see the front door 2) to one of the doors. A door lock of the door can be achieved.

Here, the rear door 3 may be fixed to a roof side member 21 as a member at the upper part of the vehicle body, but as shown in the embodiment, the rear door 3 is fixed to a side sill 22 as a member at the lower part of the vehicle body. Then, stable support of the rear door 3 can be achieved by the high rigidity of the side sill 22.

The one door is set to the rear door 3, the other door is set to the front door 2, and the rear part of the front door 2 is locked at the front middle part of the rear door 3 in the vertical direction. When configured as
Front door 2 with many opening / closing degrees (opening / closing frequency) is rear door 3
Therefore, the front door 2 can be stably supported.

Further, there is provided a center pillar 18 for partitioning the front seat entrance 19 and the rear seat entrance 20, and covers the outside of the center pillar 18 (ie, outside the vehicle) to cover the front door 2. A rear end and a front end of the rear door 3 are disposed close to each other, and a striker 35 provided on one of the doors is provided.
The lock mechanism 36 provided on the other door is configured to be fitted to (the rear door 3 side in this embodiment).

According to this configuration, since locking is performed between the front door 2 and the rear door 3, the center pillar 18 does not need any locking means such as the lock mechanism 36 or the striker 35, and therefore, the center pillar 18 is not required. 18
And the degree of freedom of the shape is improved, and the downsizing of the center pillar 18 makes it possible to set the entrances 19 and 20 wider, thereby improving the getting on and off performance.

The center pillar 18 improves the shape strength of the side openings (see the entrances 19 and 20) having a large opening area, especially the torsional rigidity of the body, thereby ensuring the rigidity and strength of the vehicle body and the side. Safety can be improved by improving rigidity at the time of collision.

Further, at least one of the rear end of the front door 2 and the front end of the rear door 3 and the center pillar 18 are arranged so as to overlap in the vehicle width direction when viewed from a plane as shown in FIG. As a result, an overlap structure in the vehicle width direction is formed by the center pillar 18 and the rear end of the front door 2 and / or the front end of the rear door 3, and as a result, the rigidity at the time of a side collision when the door is closed is reduced. The safety can be further improved, and the safety can be further improved.

FIG. 12 shows another embodiment of the locking structure of the side opening / closing body of the vehicle. In the embodiment shown in FIG. 7, a locking mechanism 44 is provided on the side sill 22 to lock the rear door 3 to the vehicle body. And a striker 45 on the rear door 3 side.
However, in the embodiment shown in FIG.
A striker 45 is provided on the second side, and a lock mechanism 61 is provided on the rear door 3 side.

Further, the above-mentioned striker 45 is fixed to a predetermined portion of the side sill 22 on the vehicle outside of the center pillar 18 so as to face the center pillar 18. With this configuration, the striker 45 is connected to the center pillar 1.
8 so that the striker 45 does not hinder the occupant when getting on and off the vehicle.
As 1, one having a general structure can be used.

In this embodiment shown in FIG. 12, the other constructions, operations, and effects are substantially the same as those of the previous embodiment. The detailed description is omitted.

13 and 14 show still another embodiment of the locking structure of the side opening / closing body of the vehicle. FIG. 13 shows a cross section of the door sash portion when the door is closed. FIG. 14 shows the door closing portion of the door panel portion. The cross section at the time is shown.

In this embodiment, the front end of the door sash 9 of the rear door 3 extends further forward than the front end of the center pillar 18 as shown in FIG. And a door sash 9 formed by the outer panel 9c and the inner panel 9d.
Is formed in a substantially L-shape when viewed from above.

The inner panel 9d and the outer panel 9c
A concave portion 9f is formed between the joining portion 9e on the side of the window glass 11 and the extending portion 9b, and the center pillar 18 is arranged on the vehicle interior side so as to correspond to the concave portion 9f. .

In particular, in this embodiment, by providing the above-mentioned extending portion 9b, the weather strip 3 as a sealing member is provided.
The position of the center pillar 18 is offset toward the front side of the vehicle with respect to the center pillar 18 so that the dimension between the outside surface of the center pillar 18 and the outside surface of the rear door 3 is set small.

Further, the size of the center pillar 18 in the longitudinal direction of the vehicle is set to be about half of the size of the door sash 9 of the rear door 3 in the longitudinal direction of the vehicle, and the center pillar 18 is formed in a narrow shape corresponding to the recess 9f. The entrance 19 for the front seat and the entrance 20 for the rear seat (see FIGS. 1 and 3) are set large. In the drawing, reference numeral 62 denotes a trim member provided on the vehicle compartment side of the door sash 9, and the trim member 62 is formed integrally with or separately from the door trim 37 (see FIG. 14).

As shown in FIG. 14, the front end of the door panel 7 of the rear door 3 extends further forward than the front end of the center pillar 18 to form an extension 7e. .

Further, a recess 7f is formed in the door inner panel 7a corresponding to the center pillar 18, and the recess 7f is formed.
The center pillar 18 is arranged on the vehicle interior side so as to correspond to f.

Thus, the striker 35 is fixed to the front end face 7c of the rear door 3 so that the rear door 3 and the front door 2 are locked in the above-mentioned extended portion 7e, while the rear end face of the front door 2 is A lock mechanism 36 is provided.

As described above, in the embodiment shown in FIGS. 13 and 14, the front end of the rear door 3 is extended to the front from the center pillar 18 to form an extended portion 7e. The two doors 2 and 3 are configured to be locked with the door 2.

Thus, the lock position of the doors 2 and 3
(Position of the striker 35 and the lock mechanism 36) can be set to be offset from the front of the center pillar 18, so that the size of the center pillar 18 in both the vehicle longitudinal direction and the vehicle width direction is small. The center pillar 18 can be made smaller, and the entrance 1
Since the enlargement of 9, 20 can be achieved, it is possible to achieve both an improvement in getting on and off and an improvement in rigidity at the time of a side collision.

In this embodiment, either the structure shown in FIG. 7 or the structure shown in FIG. 12 can be adopted for the lock structure between the rear door 3 and the side sill 22, and the structure shown in FIGS. In this embodiment, the other configurations, operations, and effects are almost the same as those of the previous embodiment. Therefore, in FIG. 13 and FIG. Description is omitted.

In the correspondence between the configuration of the present invention and the above-described embodiment, the front door of the present invention corresponds to the front door 2 of the embodiment, and similarly, the hinge of the front door is the front door hinge. 4 and the rear door is rear door 3
, The hinge portion of the rear door corresponds to the rear door hinge 5, the locking means corresponds to the strikers 35 and 45, and the lock mechanisms 36, 44 and 61, and the vehicle body for locking one door is connected to the side sill 22. Correspondingly, the present invention
It is not limited only to the configuration of the above embodiment.

For example, the vehicle body that locks the one door may be a member at the upper part of the vehicle body extending in the front-rear direction of the vehicle along the upper sides of the entrances 19 and 20 such as the roof side member 21 instead of the side sill 22. Good.

Further, as shown in FIGS. 6 and 14, in the above embodiment, a striker 35 is provided on the rear door 3 side.
Although the lock mechanism 36 is provided on the front door 2 side, the reverse configuration may be adopted, that is, a lock mechanism may be provided on the rear door 3 side and a striker may be provided on the front door 2 side.

Further, when the above-mentioned center pillar 18 is formed of a tube hydroform member, there is no joining flange portion as in the conventional center pillar, so that the center pillar 18 can be secured while maintaining the degree of freedom of the shape by the tube hydroforming process. Can be further reduced in size.

[0088]

According to the present invention, in a vehicle having a double door structure, a lock means for locking one door to the vehicle body and a lock means for locking the other door to the door are provided. There is an effect that the doors of both the front door and the rear door can be locked with a minimum necessary simple configuration.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a vehicle having a locking structure for a side opening / closing body of the vehicle according to the present invention.

FIG. 2 is an overall side view of the vehicle.

FIG. 3 is an overall side view of the vehicle with a front door and a rear door removed.

FIG. 4 is a perspective view showing a structure for mounting a center pillar to a vehicle body.

FIG. 5 is a sectional view taken along the line AA of FIG. 2;

FIG. 6 is a sectional view taken along line BB of FIG. 2;

FIG. 7 is an enlarged sectional view of a main part along the line CC in FIG. 2;

FIG. 8 is a bottom view showing a single structure of the striker.

FIG. 9 is a side view of FIG. 8;

FIG. 10 is an explanatory view showing a locked state of the striker by the lock mechanism.

FIG. 11 is an explanatory view showing an unlocked state of the striker by the lock mechanism.

FIG. 12 is a sectional view showing another embodiment of the locking structure of the side opening / closing body of the vehicle according to the present invention.

FIG. 13 is a sectional view of a door sash portion showing still another embodiment of the locking structure of the side opening / closing body of the vehicle according to the present invention.

FIG. 14 is a sectional view of the door panel.

[Explanation of symbols]

 2: Front door (front door) 3: Rear door (rear door) 4: Front door hinge (hinge part) 5: Rear door hinge (hinge part) 7e: Extension part 18: Center pillar 19, 20 ... Entry / exit 22: Side sill (Vehicle) 35, 45 ... striker (lock means) 36, 44, 61 ... lock mechanism (lock means)

Continued on the front page (72) Inventor Yoshio Fukushima 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Pref.

Claims (5)

[Claims] 1. A vehicle according to claim 1, further comprising a front seat entrance and a rear seat entrance at a side portion of the vehicle body, wherein the front seat entrance is opened and closed by a front door having a hinge at a front portion. A double door opening / closing vehicle having a rear door having a hinge portion at a rear portion thereof, the locking means for locking the one door to the vehicle body, and locking the other door to the one door. A locking structure for a side opening / closing body of a vehicle body, comprising: 2. One of the doors is set as a rear door, the other door is set as a front door, and a rear part of the front door is locked at a vertically intermediate portion of a front part of the rear door. The lock structure for a side opening / closing body of a vehicle according to claim 1. 3. A center pillar for partitioning the front-seat entrance and the rear-seat entrance, and a rear end of the front door and a front end of the rear door covering the outside of the center pillar. 2. The side opening / closing body lock according to claim 1, wherein the lock mechanism provided on the other door is fitted to the striker provided on one of the doors. Construction. 4. The vehicle according to claim 3, wherein at least one of a rear end of the front door and a front end of the rear door and the center pillar overlap each other in a vehicle width direction when viewed from a plane. Lock structure of side opening and closing body. 5. A front end of the rear door extends forward from the center pillar to form an extended portion, and both doors are locked between the extended portion and the front door. The lock structure for a side opening / closing body of a vehicle according to claim 3 or 4.