WO2024014481A1 - Vehicle rear structure - Google Patents

Vehicle rear structure Download PDF

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Publication number
WO2024014481A1
WO2024014481A1 PCT/JP2023/025742 JP2023025742W WO2024014481A1 WO 2024014481 A1 WO2024014481 A1 WO 2024014481A1 JP 2023025742 W JP2023025742 W JP 2023025742W WO 2024014481 A1 WO2024014481 A1 WO 2024014481A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
width direction
spare tire
vehicle width
cross member
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PCT/JP2023/025742
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French (fr)
Japanese (ja)
Inventor
友幸 大江
健夫 水口
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三菱自動車工業株式会社
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Application filed by 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Publication of WO2024014481A1 publication Critical patent/WO2024014481A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D43/00—Spare wheel stowing, holding, or mounting arrangements
    • B62D43/02—Spare wheel stowing, holding, or mounting arrangements external to the vehicle body
    • B62D43/04—Spare wheel stowing, holding, or mounting arrangements external to the vehicle body attached beneath the vehicle body

Definitions

  • the present invention relates to a rear structure of a vehicle that is equipped with a spare tire at the rear lower part.
  • Patent Document 1 discloses a vehicle in which a cross member extending in the vehicle width direction between left and right side members is equipped with a traction device such as a chain, and a spare tire is supported so as to be suspended from the lower part of the cross member. .
  • a relatively large drive device is arranged near the axle of the rear wheels.
  • the vertical position of the spare tire may be set higher behind the rear wheels. In this way, when the vehicle-mounted equipment located in front of the spare tire is located below the spare tire located at the rear of the vehicle, the spare tire may be damaged by the structure in the event of a rear collision, as in Patent Document 1. In some cases, it may be difficult to release the material downward.
  • the present invention was made to solve such problems, and an object of the present invention is to provide a rear structure for a vehicle that suppresses damage to vehicle-mounted equipment due to movement of a spare tire in the event of a rear collision.
  • the vehicle rear structure of the present invention connects a pair of side members arranged at intervals in the vehicle width direction and extending in the vehicle longitudinal direction, and a rear part of the pair of side members.
  • a cross member extending in the vehicle width direction, a vehicle-mounted device disposed in front of the cross member, and a spare tire supported by the cross member behind the vehicle-mounted device, the vehicle-mounted device , located on one side in the vehicle width direction with respect to the center of the spare tire, the cross member is provided with a mounting hole for mounting the spare tire, and the mounting hole extends toward the front of the vehicle in the vehicle width direction. It is characterized by being a long hole that extends obliquely to the other side in the direction.
  • the mounting hole extends at an inclination toward the other side in the vehicle width direction such that the inclination with respect to the longitudinal direction of the vehicle becomes larger toward the front of the vehicle.
  • the mounting holes are provided in a pair at intervals in the vehicle width direction,
  • the attachment hole located on one side in the vehicle width direction extends obliquely toward the other side in the vehicle width direction, and preferably extends further forward of the vehicle than the attachment hole located on the other side in the vehicle width direction.
  • the cross member is provided with a reinforcement extending in the vehicle width direction, and the reinforcement is preferably inclined forward and toward the other side in the vehicle width direction at a location located in front of the mounting hole. .
  • a protector is provided between the vehicle-mounted equipment and the spare tire, and a rear surface of the protector is preferably inclined toward the front and the other side in the vehicle width direction.
  • the protector restricts the spare tire from moving further forward to avoid collision with the equipment mounted on the vehicle. I can do it.
  • the spare tire contacts the protector and is pushed further forward, the spare tire can be moved to the other side in the vehicle width direction along the inclined rear surface of the protector. Thereby, it is possible to further improve the ability to avoid collisions with vehicle-mounted equipment located on one side in the vehicle width direction.
  • the vehicle is an electric vehicle
  • the vehicle-mounted equipment is a rear wheel drive unit including a travel motor.
  • the spare tire is pushed forward during a rear collision of the electric vehicle, it is possible to suppress the collision with the rear wheel drive unit.
  • the vehicle rear structure of the present invention it is possible to protect the vehicle-mounted equipment by avoiding collision of the spare tire with the vehicle-mounted equipment in the event of a rear-end collision of the vehicle.
  • FIG. 1 is a top view showing a rear structure of a vehicle according to an embodiment of the present invention.
  • FIG. 1 is a side view showing a rear structure of a vehicle according to a first embodiment of the present invention.
  • FIG. 2 is a top view showing the fixing part structure of the spare tire carrier according to the first embodiment.
  • FIG. 2 is a top view showing an example of the shape of a bolt hole for fixing the spare tire carrier according to the first embodiment. It is a top view which shows the fixed part structure of the spare tire carrier based on 2nd Embodiment of this invention.
  • FIG. 1 is a top view showing the rear structure of a vehicle 1 according to an embodiment of the present invention.
  • FIG. 1 shows various frames of a vehicle, a rear wheel drive unit 2 (equipment mounted on the vehicle), and a spare tire 3.
  • FIG. 2 is a side view showing the rear structure of the vehicle 1 according to the first embodiment of the present invention.
  • a vehicle 1 employing the rear structure of the present invention is, for example, a pickup truck, and its rear wheels are suspended by a De Dion type suspension device 4.
  • the vehicle 1 includes a pair of left and right side members 5a and 5b that extend in the vehicle longitudinal direction and are spaced apart in the vehicle width direction.
  • the De Dion suspension device 4 has a structure in which left and right support portions 7a and 7b, which rotatably support a rear wheel drive shaft 6, are connected by a De Dion tube 8.
  • the left and right support parts 7a and 7b are suspended from the left and right side members 5a and 5b by leaf springs 9a and 9b, respectively.
  • both end portions of the dodion tube 8 in the vehicle width direction are connected to left and right side members 5a, 5b by dampers 10a, 10b, respectively.
  • the vehicle 1 is an electric vehicle whose rear wheels are driven by an electric motor.
  • One rear wheel drive motor 2a travel motor
  • a transmission 2b transmission 2b
  • a differential 2c differential 2c
  • a high voltage component 2d such as a transformer
  • the differential 2c is arranged approximately at the center in the vehicle width direction between the left and right rear wheels.
  • the transmission 2b is arranged adjacent to the front side of the vehicle of the differential 2c
  • the motor 2a is arranged on the left side of the transmission 2b in the vehicle width direction
  • the high voltage component 2d is arranged above the motor 2a. . Therefore, the rear wheel drive unit 2 is arranged offset to the left side in the vehicle width direction from the center position in the vehicle width direction of the vehicle.
  • the deion tube 8 is arranged at the rear of the rear wheel drive unit 2. Further, a spare tire 3 is arranged behind the deion tube 8.
  • a bumper reinforcement 15 is fixed to the rear end portions of the pair of left and right side members 5a, 5b. The bumper reinforcement 15 extends in the vehicle width direction and supports a rear bumper (not shown) of the vehicle 1.
  • the vehicle 1 also includes a plurality of cross members extending in the vehicle width direction and connecting the left and right side members 5a and 5b.
  • a first cross member 20 As cross members at the rear of the vehicle, a first cross member 20, a second cross member 21, and a third cross member 22 are provided in order from the rear side of the vehicle toward the front.
  • the first cross member 20 includes a spare tire carrier 25 that supports the spare tire 3 approximately at the center in the vehicle width direction.
  • the spare tire 3 is arranged so that one side of the spare tire 3 is in contact with the lower surface of the first cross member 20, and the spare tire 3 is arranged so that the axis of the spare tire 3 extends in the vertical direction. That is, as shown in FIG. 2, the spare tire 3 is arranged so that the center line CLta in the width direction extends substantially in the longitudinal direction of the vehicle.
  • the second cross member 21 supports the rear central portion of the rear wheel drive unit 2 in the vehicle width direction via the arm Prm.
  • the second cross member 21 is provided with a stopper 30 (protector) extending downward from the second cross member 21 .
  • the stopper 30 is located in front of the spare tire 3 and behind the rear wheel drive unit 2, has a width of several tens of centimeters in the vehicle width direction, and is positioned so as to overlap the center of the spare tire 3 in the vehicle width direction. It is located in
  • the third cross member 22 supports the upper front side of the rear wheel drive unit 2 via a mount.
  • the positional relationship among the rear wheel drive unit 2, spare tire 3, bumper reinforcement 15, and stopper 30 will be explained using FIG. 2.
  • the bumper reinforcement 15 is located behind the spare tire 3, and is disposed below the center line CLta passing through the center of the vertical width at least on the rear end surface 3a of the spare tire 3, and is located at the rear end surface of the spare tire 3 in the front-rear direction. Overlaps with 3a.
  • the stopper 30 extends downward from the second cross member 21 to near the center line CLta passing through the center position of the vertical width on the front end surface 3b of the spare tire 3, and extends downward from the second cross member 21 to the vicinity of the center line CLta passing through the center position of the vertical width on the front end surface 3b of the spare tire 3 in the front and rear direction. overlaps with Further, the rear surface 30a of the stopper 30 is substantially parallel to the front end surface 3b of the spare tire 3 in the vertical direction.
  • the rear wheel drive unit 2 is located below the center line CLta of the spare tire 3. Furthermore, as shown in FIG. 1, the center line CLtb of the spare tire 3 in the vehicle width direction is wider than the center of the rear wheel drive unit 2 in the vehicle width direction (in this embodiment, the arm Prm, which is the rear mounting position). It is located on the right side (the other side in the vehicle width direction).
  • FIG. 3 is a top view showing the fixing part structure of the spare tire carrier 25 according to the first embodiment.
  • FIG. 4 is a top view showing examples of shapes of bolt holes 45 for fixing the spare tire carrier 25 according to the first embodiment, and shows three patterns (a), (b), and (c).
  • the spare tire carrier 25 is fixed to the first cross member 20 by two fixing bolts 46 spaced apart in the vehicle width direction.
  • the spare tire carrier 25 has a rectangular box shape, for example, and is arranged such that its upper surface abuts the lower surface of the upper wall 20b of the first cross member 20 and is suspended from the first cross member 20 by a fixing bolt 46. There is.
  • the upper wall 20b of the first cross member 20 is provided with two bolt holes 45a and 45b (attachment holes) spaced apart in the vehicle width direction and through which the fixing bolts 46 are passed.
  • the right bolt hole 45a located on the right side in the vehicle width direction is an elongated hole extending toward the front of the vehicle from the normal mounting position of the spare tire carrier 25.
  • the left bolt hole 45b located on the left side in the vehicle width direction is located toward the front of the vehicle from the normal mounting position of the spare tire carrier 25. It is a long hole that extends to the right in the vehicle width direction.
  • the left bolt hole 45b extends further forward of the vehicle than the right bolt hole 45a.
  • the left bolt hole 45b is extended from the normal mounting position of the spare tire carrier 25 to the front of the vehicle by, for example, several centimeters, and the left bolt hole 45b is inclined to the right in the vehicle width direction from the front end toward the front of the vehicle. It may also be formed to extend.
  • the left bolt hole 45b may be formed in an arc shape that bends to the right in the vehicle width direction from the normal mounting position of the spare tire carrier 25 toward the front of the vehicle.
  • the right bolt hole 45a may be configured to be inclined to the right in the vehicle width direction toward the front of the vehicle, as shown in FIG. good. Further, when the left bolt hole 45b is formed in an arc shape, the right bolt hole 45a may be formed in an arc shape that bends toward the front of the vehicle and to the right in the vehicle width direction, similarly to FIG. 4(c). Further, the right bolt hole 45a does not have to be a long hole. That is, of the two bolt holes 45a and 45b, at least the left bolt hole 45b on the side opposite to the rear wheel drive unit 2 is inclined toward the front of the vehicle and extends toward the side opposite to the rear wheel drive unit 2 in the vehicle width direction.
  • the spare tire carrier 25 may be fixed to the rear end portion of the left bolt hole 45b by using an elongated hole.
  • the spare tire 3 is pushed forward by the other vehicle or the bumper reinforcement force 15 at the time of a rear collision.
  • the spare tire carrier 25 that supports the spare tire 3 is fixed to the first cross member 20 by two fixing bolts 46, and a bolt hole 45a provided in the first cross member 20 through which the fixing bolts 46 are passed.
  • the left bolt hole 45b on the left side in the vehicle width direction is an elongated hole that extends toward the front of the vehicle and extends to the right in the vehicle width direction, so the spare tire 3 moves toward the front of the vehicle.
  • the inclined left bolt hole 45b serves as a guide to move the vehicle to the right in the width direction.
  • the left fixing bolt 46 can move forward more easily than the right fixing bolt 46, and the spare tire 3 can be moved to the right side in the vehicle width direction. promote the movement of people. Thereby, even if the spare tire 3 moves forward at the time of a rear collision of the vehicle, it can move to the right side in the vehicle width direction of the rear wheel drive unit 2 and avoid a collision with the rear wheel drive unit 2.
  • the rear wheel drive unit 2 Since the rear wheel drive unit 2 is arranged offset to the left side of the center of the spare tire 3 in the vehicle width direction, even if the spare tire 3 moves significantly forward, the rear wheel drive unit 2 The spare tire 3 moves to the space on the right side in the width direction, and collision with the rear wheel drive unit 2 is avoided.
  • the spare tire 3 that has moved forward comes into contact with the rear surface 30a of the stopper 30, and further forward movement is restricted.
  • the spare tire 3 attempts to move further forward, it moves to the right in the vehicle width direction along the inclined rear surface 30a of the stopper 30. Thereby, collision of the spare tire 3 with the rear wheel drive unit 2 can be avoided.
  • FIG. 5 is a top view showing the fixing part structure of the spare tire carrier 25 according to the second embodiment of the present invention.
  • a first cross member 20 that supports a spare tire carrier 25 is provided with a structure extending in the vehicle width direction and reinforcing the first cross member 20.
  • a plate-shaped reinforcement 50 is provided that joins the upper wall 20b and the lower wall 20a of the first cross member 20.
  • the reinforcement 50 has a reinforcement rear part 50a, a reinforcement slope part 50b, and a reinforcement front part 50c.
  • the reinforcement rear portion 50a is configured to extend in the vehicle width direction at a position behind the left bolt hole 45b and on the left side in the vehicle width direction.
  • the reinforcement inclined portion 50b is configured to be inclined to the right in the vehicle width direction toward the front of the vehicle from the right end in the vehicle width direction of the reinforcement rear portion 50a, and to extend forward from the left bolt hole 45b and to the right side in the vehicle width direction. has been done.
  • the reinforcement front portion 50c is configured to extend rightward in the vehicle width direction from the front end of the reinforcement inclined portion 50b.
  • the bolt holes 45a and 45b for fixing the spare tire carrier 25 are elongated holes as in the first embodiment. At this time, it is preferable that the left bolt hole 45b be formed to extend obliquely along the reinforcement inclined portion 50b.
  • the fixing bolt 46 or a part of the spare tire carrier 25 connected to the fixing bolt 46 is used as a reinforcement.
  • the spare tire 3 comes into contact with the inclined part 50b and moves along the reinforcement inclined part 50b and the inclination of the left bolt hole 45b, along with the fixing bolt 46 and the spare tire carrier 25, toward the front of the vehicle and to the right in the vehicle width direction.
  • the second embodiment may also be provided with the same stopper 30 as in the first embodiment.
  • the present invention is not limited to the above embodiments.
  • the shapes of various parts such as the stopper 30 may be changed as appropriate.
  • Vehicle 2 Rear wheel drive unit (vehicle mounted equipment) 3 Spare tire 5a, 5b Side member 20 First cross member (cross member) 30 Stopper (protector) 45a, 45b Bolt holes (mounting holes) 46 Fixing bolt 50 Reinforcement

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

This vehicle rear structure comprises: a pair of right and left side members 5a and 5b of a vehicle; a first cross member 20 extending in the vehicle width direction so as to connect the rear parts of the pair of side members 5a and 5b; a rear wheel drive unit 2 disposed to the front of the first cross member 20; and a spare tire 3 supported by the first cross member 20 to the rear of the rear wheel drive unit 2, wherein the rear wheel drive unit 2 is positioned on the left side in the vehicle width direction with respect to the center of the spare tire 3, the first cross member is provided with bolt holes 45a and 45b for attaching a spare tire carrier 25 which are separated in the vehicle width direction, and the left bolt hole 45b on the left side of the vehicle is a long hole that is inclined to the other side in the vehicle width direction towards the front of the vehicle.

Description

車両の後部構造Vehicle rear structure
　本発明は、後下部にスペアタイヤが備えられた車両の後部構造に関する。 The present invention relates to a rear structure of a vehicle that is equipped with a spare tire at the rear lower part.
　ピックアップトラック等のように、車両後部フロア下にスペアタイヤを搭載した車両が知られている。
　例えば特許文献１には、左右のサイドメンバ間を車幅方向に延びるクロスメンバに、チェーン等の牽引装置を備え、クロスメンバの下部にスペアタイヤを吊り下げるように支持した車両が開示されている。 2. Description of the Related Art Vehicles, such as pickup trucks, that have a spare tire mounted under the rear floor of the vehicle are known.
For example, Patent Document 1 discloses a vehicle in which a cross member extending in the vehicle width direction between left and right side members is equipped with a traction device such as a chain, and a spare tire is supported so as to be suspended from the lower part of the cross member. .
　更に、特許文献１に記載された車両では、スペアタイヤを後ろ上がりに固定する構造が提案されている、これにより、車両後突時に、スペアタイヤが後方から押された場合に、スペアタイヤの前方に配置されているデフ等の車両の構造物に対して、スペアタイヤが下方に逃げるようにして、当該構造物を保護することが可能になっている。
　また、特許文献２に記載された車両では、車両後突時に、スペアタイヤを支持するタイヤキャリヤのチェーンの破断を防止するために、タイヤキャリヤがクロスメンバに対して前方に移動可能に支持されている。 Furthermore, in the vehicle described in Patent Document 1, a structure has been proposed in which the spare tire is fixed upward at the rear, so that when the spare tire is pushed from behind during a rear-end collision, the front of the spare tire is fixed upward. It is possible to protect vehicle structures such as a differential located in the vehicle by allowing the spare tire to escape downward.
Furthermore, in the vehicle described in Patent Document 2, in order to prevent the chain of the tire carrier that supports the spare tire from breaking in the event of a vehicle rear-end collision, the tire carrier is supported so as to be movable forward relative to the cross member. There is.
特開２０１８－７９８８９号公報Japanese Patent Application Publication No. 2018-79889
　例えば電動モータを含む電動の駆動装置によって後輪を駆動する車両では、後輪の車軸付近に比較的大きな駆動装置が配置される。一方、ピックアップトラックのようにデパーチャアングルを大きく確保するために、後輪より後方においてスペアタイヤの上下位置を高く設定する場合がある。このように、車両後部に配置されたスペアタイヤに対して、其の前方に配置されている車両搭載機器が下方に位置する場合には、特許文献１のように後突時にスペアタイヤを構造物の下方に逃がすことが困難である場合がある。 For example, in a vehicle where the rear wheels are driven by an electric drive device including an electric motor, a relatively large drive device is arranged near the axle of the rear wheels. On the other hand, in order to ensure a large departure angle, such as in a pickup truck, the vertical position of the spare tire may be set higher behind the rear wheels. In this way, when the vehicle-mounted equipment located in front of the spare tire is located below the spare tire located at the rear of the vehicle, the spare tire may be damaged by the structure in the event of a rear collision, as in Patent Document 1. In some cases, it may be difficult to release the material downward.
　本発明はこのような問題を解決するためになされたもので、後突時にスペアタイヤの移動による車両搭載機器の損傷を抑制する車両の後部構造を提供することを目的とする。 The present invention was made to solve such problems, and an object of the present invention is to provide a rear structure for a vehicle that suppresses damage to vehicle-mounted equipment due to movement of a spare tire in the event of a rear collision.
　上記目的を達成するため、本発明の車両の後部構造は、車両の車幅方向に間隔を置いて配置され車両前後方向に延びる一対のサイドメンバと、前記一対のサイドメンバの後部を連結するように車幅方向に延びるクロスメンバと、前記クロスメンバの前方に配置された車両搭載機器と、前記車両搭載機器の後方において前記クロスメンバに支持されるスペアタイヤと、を備え、前記車両搭載機器は、前記スペアタイヤの中心よりも車幅方向一方側に位置し、前記クロスメンバには、前記スペアタイヤを取り付けるための取付孔が設けられており、前記取付孔は、車両前方に向かって車幅方向他方側に傾斜して延びる長孔であることを特徴とする。 In order to achieve the above object, the vehicle rear structure of the present invention connects a pair of side members arranged at intervals in the vehicle width direction and extending in the vehicle longitudinal direction, and a rear part of the pair of side members. a cross member extending in the vehicle width direction, a vehicle-mounted device disposed in front of the cross member, and a spare tire supported by the cross member behind the vehicle-mounted device, the vehicle-mounted device , located on one side in the vehicle width direction with respect to the center of the spare tire, the cross member is provided with a mounting hole for mounting the spare tire, and the mounting hole extends toward the front of the vehicle in the vehicle width direction. It is characterized by being a long hole that extends obliquely to the other side in the direction.
　これにより、車両の後突時にスペアタイヤが前方に押された際に、クロスメンバに対してスペアタイヤが、長孔である取付孔に沿って車両前方かつ車幅方向他方側に移動する。
　したがって、スペアタイヤの中心よりも車幅方向一方側に位置する車両搭載機器を避けるようにスペアタイヤが前方に移動する。
　好ましくは、前記取付孔は、車両前方ほど車両前後方向に対する傾斜が大きくなるように前記車幅方向他方側に傾斜して延びているとよい。 As a result, when the spare tire is pushed forward during a rear collision of the vehicle, the spare tire moves toward the front of the vehicle and to the other side in the vehicle width direction along the attachment hole, which is an elongated hole, with respect to the cross member.
Therefore, the spare tire moves forward so as to avoid the vehicle-mounted equipment located on one side in the vehicle width direction with respect to the center of the spare tire.
Preferably, the mounting hole extends at an inclination toward the other side in the vehicle width direction such that the inclination with respect to the longitudinal direction of the vehicle becomes larger toward the front of the vehicle.
　これにより、車両後突時にスペアタイヤが車両前方に移動した際に、取付孔の傾斜に追従できずに取付孔を破損させることを抑制することができる。したがって、車両後突時にスペアタイヤが車両搭載機器を避けるように移動して、車両搭載機器への衝突回避性を向上させることができる。
　好ましくは、前記取付孔は、車幅方向に間隔を置いて一対設けられ、
　前記車幅方向一方側に位置する前記取付孔は、前記車幅方向他方側に向かい傾斜して延びており、車幅方向他方側に位置する前記取付孔に比べ車両前方まで延びるとよい。 Thereby, when the spare tire moves forward of the vehicle during a rear collision of the vehicle, it is possible to prevent damage to the mounting hole due to failure to follow the slope of the mounting hole. Therefore, in the event of a rear-end collision of the vehicle, the spare tire moves to avoid the vehicle-mounted equipment, thereby improving the ability to avoid collisions with the vehicle-mounted equipment.
Preferably, the mounting holes are provided in a pair at intervals in the vehicle width direction,
The attachment hole located on one side in the vehicle width direction extends obliquely toward the other side in the vehicle width direction, and preferably extends further forward of the vehicle than the attachment hole located on the other side in the vehicle width direction.
　これにより、車両後突時にスペアタイヤが車両前方に押された際に、車幅方向他方側の取付孔を略中心として、スペアタイヤが車幅方向他方側に回転するように移動する。これにより、スペアタイヤの車両搭載機器への衝突回避性を向上させることができる。
　好ましくは、前記クロスメンバには、内部に車幅方向に延びるリンフォースが設けられ、前記リンフォースは、前記取付孔の前方に位置する箇所で前方かつ前記車幅方向他方側に向かい傾斜するとよい。 As a result, when the spare tire is pushed forward in the vehicle during a rear-end collision, the spare tire rotates toward the other side in the vehicle width direction approximately about the mounting hole on the other side in the vehicle width direction. Thereby, it is possible to improve the ability of the spare tire to avoid collision with vehicle-mounted equipment.
Preferably, the cross member is provided with a reinforcement extending in the vehicle width direction, and the reinforcement is preferably inclined forward and toward the other side in the vehicle width direction at a location located in front of the mounting hole. .
　これにより、車両後突時にスペアタイヤが車両前方に押された際に、リンフォースに沿ってスペアタイヤの支持部を車幅方向他方側に移動させ易くすることができる。
　好ましくは、前記車両搭載機器と前記スペアタイヤとの間に、プロテクタが設けられ、前記プロテクタの後面は、前方かつ車幅方向他方側に向かい傾斜するとよい。
　これにより、車両後突時にスペアタイヤが車両前方に押されて車両前方に移動した場合に、プロテクタによってスペアタイヤの更なる前方への移動が規制されて、車両搭載機器への衝突を回避することができる。更に、スペアタイヤがプロテクタに当接して更に前方に押された場合には、傾斜したプロテクタの後面に沿って、スペアタイヤを車幅方向他方側に移動させることができる。これにより、車幅方向一方側に位置する車両搭載機器への衝突回避性を更に向上させることができる。 As a result, when the spare tire is pushed forward in the vehicle during a rear collision, the support portion of the spare tire can be easily moved to the other side in the vehicle width direction along the reinforcement.
Preferably, a protector is provided between the vehicle-mounted equipment and the spare tire, and a rear surface of the protector is preferably inclined toward the front and the other side in the vehicle width direction.
As a result, when the spare tire is pushed forward and moves forward of the vehicle during a rear-end collision, the protector restricts the spare tire from moving further forward to avoid collision with the equipment mounted on the vehicle. I can do it. Further, when the spare tire contacts the protector and is pushed further forward, the spare tire can be moved to the other side in the vehicle width direction along the inclined rear surface of the protector. Thereby, it is possible to further improve the ability to avoid collisions with vehicle-mounted equipment located on one side in the vehicle width direction.
　好ましくは、前記車両は電動車両であり、前記車両搭載機器は、走行用モータを含む後輪駆動ユニットであるとよい。
　これにより、電動車両の後突時にスペアタイヤが前方に押された際に、後輪駆動ユニットへの衝突を抑制することができる。 Preferably, the vehicle is an electric vehicle, and the vehicle-mounted equipment is a rear wheel drive unit including a travel motor.
Thereby, when the spare tire is pushed forward during a rear collision of the electric vehicle, it is possible to suppress the collision with the rear wheel drive unit.
　本発明の車両後部構造によれば、車両の後突時においてスペアタイヤが車両搭載機器に衝突することを回避して、車両搭載機器の保護を図ることができる。 According to the vehicle rear structure of the present invention, it is possible to protect the vehicle-mounted equipment by avoiding collision of the spare tire with the vehicle-mounted equipment in the event of a rear-end collision of the vehicle.
本発明の実施形態の車両の後部構造を示す上面図である。FIG. 1 is a top view showing a rear structure of a vehicle according to an embodiment of the present invention. 本発明の第１実施形態に係る車両の後部構造を示す側面図である。FIG. 1 is a side view showing a rear structure of a vehicle according to a first embodiment of the present invention. 第１実施形態に係るスペアタイヤキャリヤの固定部構造を示す上面図である。FIG. 2 is a top view showing the fixing part structure of the spare tire carrier according to the first embodiment. 第１実施形態に係るスペアタイヤキャリヤ固定用のボルト穴の形状例を通す上面図である。FIG. 2 is a top view showing an example of the shape of a bolt hole for fixing the spare tire carrier according to the first embodiment. 本発明の第２実施形態に係るスペアタイヤキャリヤの固定部構造を示す上面図である。It is a top view which shows the fixed part structure of the spare tire carrier based on 2nd Embodiment of this invention.
　以下、図面に基づき本発明の実施形態について説明する。
　図１は、本発明の実施形態の車両１の後部構造を示す上面図である。図１は、車両の各種フレーム、後輪駆動ユニット２（車両搭載機器）、スペアタイヤ３を示している。図２は、本発明の第１実施形態に係る車両１の後部構造を示す側面図である。
　図１に示すように、本発明の後部構造を採用する車両１は、例えばピックアップトラックであって、後輪がドディオン式サスペンション装置４によって懸架されている。 Embodiments of the present invention will be described below based on the drawings.
FIG. 1 is a top view showing the rear structure of a vehicle 1 according to an embodiment of the present invention. FIG. 1 shows various frames of a vehicle, a rear wheel drive unit 2 (equipment mounted on the vehicle), and a spare tire 3. FIG. 2 is a side view showing the rear structure of the vehicle 1 according to the first embodiment of the present invention.
As shown in FIG. 1, a vehicle 1 employing the rear structure of the present invention is, for example, a pickup truck, and its rear wheels are suspended by a De Dion type suspension device 4.
　車両１には、車両前後方向に延び、車幅方向に間隔をおいて配置された左右一対のサイドメンバ５ａ、５ｂを備えている。
　ドディオン式サスペンション装置４は、後輪用のドライブシャフト６を回転可能に支持する左右の支持部７ａ、７ｂを、ドディオンチューブ８よって連結した構造になっている。左右の支持部７ａ、７ｂは、夫々リーフスプリング９ａ、９ｂによって左右のサイドメンバ５ａ、５ｂに懸架されている。また、ドディオンチューブ８の車幅方向両端部は、夫々ダンパ１０ａ、１０ｂによって左右のサイドメンバ５ａ、５ｂに連結されている。 The vehicle 1 includes a pair of left and right side members 5a and 5b that extend in the vehicle longitudinal direction and are spaced apart in the vehicle width direction.
The De Dion suspension device 4 has a structure in which left and right support portions 7a and 7b, which rotatably support a rear wheel drive shaft 6, are connected by a De Dion tube 8. The left and right support parts 7a and 7b are suspended from the left and right side members 5a and 5b by leaf springs 9a and 9b, respectively. Further, both end portions of the dodion tube 8 in the vehicle width direction are connected to left and right side members 5a, 5b by dampers 10a, 10b, respectively.
　また、車両１は、後輪を電動モータによって駆動する電動車両である。１個の後輪駆動用モータ２ａ（走行用モータ）と変速機２ｂとディファレンシャル２ｃと変圧器等の高電圧部品２ｄとが、後輪駆動ユニット２としてまとめて構成されている。
　ディファレンシャル２ｃは、左右後輪の間の車幅方向略中央部に配置されている。変速機２ｂは、ディファレンシャル２ｃの車両前方側に隣接して配置され、モータ２ａは変速機２ｂの車幅方向左方側に配置され、高電圧部品２ｄは、モータ２ａの上方に配置されている。したがって、後輪駆動ユニット２は、車両の車幅方向中央位置より車幅方向左方側にオフセットして配置されている。 Further, the vehicle 1 is an electric vehicle whose rear wheels are driven by an electric motor. One rear wheel drive motor 2a (travel motor), a transmission 2b, a differential 2c, and a high voltage component 2d such as a transformer are collectively configured as a rear wheel drive unit 2.
The differential 2c is arranged approximately at the center in the vehicle width direction between the left and right rear wheels. The transmission 2b is arranged adjacent to the front side of the vehicle of the differential 2c, the motor 2a is arranged on the left side of the transmission 2b in the vehicle width direction, and the high voltage component 2d is arranged above the motor 2a. . Therefore, the rear wheel drive unit 2 is arranged offset to the left side in the vehicle width direction from the center position in the vehicle width direction of the vehicle.
　ドディオンチューブ８は、後輪駆動ユニット２の後方に配置されている。また、ドディオンチューブ８の後方にスペアタイヤ３が配置されている。
　左右一対のサイドメンバ５ａ、５ｂの後端部には、バンパリンフォース１５が固定されている。バンパリンフォース１５は、車幅方向に延び、車両１の図示しない後部バンパを支持する。 The deion tube 8 is arranged at the rear of the rear wheel drive unit 2. Further, a spare tire 3 is arranged behind the deion tube 8.
A bumper reinforcement 15 is fixed to the rear end portions of the pair of left and right side members 5a, 5b. The bumper reinforcement 15 extends in the vehicle width direction and supports a rear bumper (not shown) of the vehicle 1.
　また、車両１には、車幅方向に延び左右のサイドメンバ５ａ、５ｂを接続する複数のクロスメンバを備えている。
　車両後部におけるクロスメンバとして、車両後方側から前方に向かって順番に、第１クロスメンバ２０、第２クロスメンバ２１、第３クロスメンバ２２を有している。
　第１クロスメンバ２０は、その車幅方向の略中央部に、スペアタイヤ３を支持するスペアタイヤキャリヤ２５を備えている。スペアタイヤ３は、第１クロスメンバ２０の下面にスペアタイヤ３の一側面が接するように配置され、スペアタイヤ３の軸線が上下方向に延びるように配置される。即ち、図２に示すように、スペアタイヤ３の幅方向の中央線ＣＬｔaが略車両前後方向に延びるように配置される。 The vehicle 1 also includes a plurality of cross members extending in the vehicle width direction and connecting the left and right side members 5a and 5b.
As cross members at the rear of the vehicle, a first cross member 20, a second cross member 21, and a third cross member 22 are provided in order from the rear side of the vehicle toward the front.
The first cross member 20 includes a spare tire carrier 25 that supports the spare tire 3 approximately at the center in the vehicle width direction. The spare tire 3 is arranged so that one side of the spare tire 3 is in contact with the lower surface of the first cross member 20, and the spare tire 3 is arranged so that the axis of the spare tire 3 extends in the vertical direction. That is, as shown in FIG. 2, the spare tire 3 is arranged so that the center line CLta in the width direction extends substantially in the longitudinal direction of the vehicle.
　第２クロスメンバ２１は、アームＰrmを介して後輪駆動ユニット２の後部の車幅方向中央部を支持している。第２クロスメンバ２１には、第２クロスメンバ２１から下方に延びるストッパ３０（プロテクタ）が備えられている。ストッパ３０は、スペアタイヤ３より前方かつ後輪駆動ユニット２より後方に位置しており、例えは数十ｃｍの車幅方向の幅を有し、スペアタイヤ３の中心と車幅方向で重なるように配置されている。 The second cross member 21 supports the rear central portion of the rear wheel drive unit 2 in the vehicle width direction via the arm Prm. The second cross member 21 is provided with a stopper 30 (protector) extending downward from the second cross member 21 . The stopper 30 is located in front of the spare tire 3 and behind the rear wheel drive unit 2, has a width of several tens of centimeters in the vehicle width direction, and is positioned so as to overlap the center of the spare tire 3 in the vehicle width direction. It is located in
　第３クロスメンバ２２は、マウントを介して後輪駆動ユニット２の前側上部を支持している。
　図２を用いて、後輪駆動ユニット２、スペアタイヤ３、バンパリンフォース１５、ストッパ３０の位置関係について説明する。バンパリンフォース１５はスペアタイヤ３の後方に位置し、少なくともスペアタイヤ３の後端面３ａにおける上下幅の中央位置を通る中央線ＣＬtaより下方に配置されており、前後方向でスペアタイヤ３の後端面３ａと重なる。 The third cross member 22 supports the upper front side of the rear wheel drive unit 2 via a mount.
The positional relationship among the rear wheel drive unit 2, spare tire 3, bumper reinforcement 15, and stopper 30 will be explained using FIG. 2. The bumper reinforcement 15 is located behind the spare tire 3, and is disposed below the center line CLta passing through the center of the vertical width at least on the rear end surface 3a of the spare tire 3, and is located at the rear end surface of the spare tire 3 in the front-rear direction. Overlaps with 3a.
　ストッパ３０は、上記のように第２クロスメンバ２１からスペアタイヤ３の前端面３ｂにおける上下幅の中央位置を通る中央線ＣＬta付近まで下方に延びており、前後方向でスペアタイヤ３の前端面３ｂと重なる。
　また、ストッパ３０の後面３０ａはスペアタイヤ３の前端面３ｂと上下方向で略平行になっている。 As described above, the stopper 30 extends downward from the second cross member 21 to near the center line CLta passing through the center position of the vertical width on the front end surface 3b of the spare tire 3, and extends downward from the second cross member 21 to the vicinity of the center line CLta passing through the center position of the vertical width on the front end surface 3b of the spare tire 3 in the front and rear direction. overlaps with
Further, the rear surface 30a of the stopper 30 is substantially parallel to the front end surface 3b of the spare tire 3 in the vertical direction.
　また、後輪駆動ユニット２は、スペアタイヤ３の中央線ＣＬtaよりも下方に位置している。
　更に、図１に示すように、スペアタイヤ３の車幅方向中央線ＣＬｔbは、後輪駆動ユニット２の車幅方向中央部（本実施形態では、後部取り付け位置であるアームＰrm）よりも車幅方向右方側（車幅方向他方側）に位置している。 Further, the rear wheel drive unit 2 is located below the center line CLta of the spare tire 3.
Furthermore, as shown in FIG. 1, the center line CLtb of the spare tire 3 in the vehicle width direction is wider than the center of the rear wheel drive unit 2 in the vehicle width direction (in this embodiment, the arm Prm, which is the rear mounting position). It is located on the right side (the other side in the vehicle width direction).
　また、ストッパ３０の後面３０ａは、車幅方向右方側から左方側に向かって車両後方側に傾斜している。ストッパ３０の後面３０ａの左端は、スペアタイヤ３の車幅方向中央線ＣＬｔbよりも車幅方向左方（車幅方向一方側）に位置し、ストッパ３０の後面３０ａの右端は、スペアタイヤ３の車幅方向中央線ＣＬｔbよりも車幅方向右方かつ後輪駆動ユニット２よりも車幅方向右方に位置している。
　図３は、第１実施形態に係るスペアタイヤキャリヤ２５の固定部構造を示す上面図である。
　図４は、第１実施形態に係るスペアタイヤキャリヤ２５固定用のボルト穴４５の形状例を示す上面図であり、（ａ）（ｂ）（ｃ）の３パターンを示している。 Further, the rear surface 30a of the stopper 30 is inclined toward the rear of the vehicle from the right side in the vehicle width direction to the left side. The left end of the rear surface 30a of the stopper 30 is located to the left of the vehicle width direction center line CLtb of the spare tire 3 (one side in the vehicle width direction), and the right end of the rear surface 30a of the stopper 30 is located to the left of the vehicle width direction center line CLtb of the spare tire 3. It is located to the right of the vehicle width direction center line CLtb and to the right of the rear wheel drive unit 2 in the vehicle width direction.
FIG. 3 is a top view showing the fixing part structure of the spare tire carrier 25 according to the first embodiment.
FIG. 4 is a top view showing examples of shapes of bolt holes 45 for fixing the spare tire carrier 25 according to the first embodiment, and shows three patterns (a), (b), and (c).
　図３に示すように、スペアタイヤキャリヤ２５は、車幅方向に間隔を置いた２本の固定用ボルト４６によって、第１クロスメンバ２０に固定されている。スペアタイヤキャリヤ２５は、例えば矩形箱状であって、上面が第１クロスメンバ２０の上壁２０ｂの下面に当接し、固定用ボルト４６によって第１クロスメンバ２０に吊り下げられるように配置されている。 As shown in FIG. 3, the spare tire carrier 25 is fixed to the first cross member 20 by two fixing bolts 46 spaced apart in the vehicle width direction. The spare tire carrier 25 has a rectangular box shape, for example, and is arranged such that its upper surface abuts the lower surface of the upper wall 20b of the first cross member 20 and is suspended from the first cross member 20 by a fixing bolt 46. There is.
　第１クロスメンバ２０の上壁２０ｂには、車幅方向に間隔をおいて固定用ボルト４６を通す２個のボルト穴４５ａ、４５ｂ（取付孔）が設けられている。
　２個のボルト穴４５ａ、４５ｂのうち、車幅方向右方側に位置する右ボルト穴４５ａは、スペアタイヤキャリヤ２５の通常取付位置から車両前方に延びる長穴である。
　一方、図４（ａ）に示すように、２個のボルト穴４５ａ、４５ｂのうち、車幅方向左方側に位置する左ボルト穴４５ｂは、スペアタイヤキャリヤ２５の通常取付位置から車両前方に向かって車幅方向右方に傾斜して延びた長穴になっている。左ボルト穴４５ｂは、右ボルト穴４５ａよりも車両前方まで延びている。 The upper wall 20b of the first cross member 20 is provided with two bolt holes 45a and 45b (attachment holes) spaced apart in the vehicle width direction and through which the fixing bolts 46 are passed.
Of the two bolt holes 45a and 45b, the right bolt hole 45a located on the right side in the vehicle width direction is an elongated hole extending toward the front of the vehicle from the normal mounting position of the spare tire carrier 25.
On the other hand, as shown in FIG. 4(a), of the two bolt holes 45a and 45b, the left bolt hole 45b located on the left side in the vehicle width direction is located toward the front of the vehicle from the normal mounting position of the spare tire carrier 25. It is a long hole that extends to the right in the vehicle width direction. The left bolt hole 45b extends further forward of the vehicle than the right bolt hole 45a.
　あるいは、図４（ｂ）に示すように、左ボルト穴４５ｂを、スペアタイヤキャリヤ２５の通常取付位置から車両前方に例えば数ｃｍ延ばし、その前端から車両前方に向かって車幅方向右方に傾斜して延びるように形成してもよい。
　あるいは、図４（ｃ）に示すように、左ボルト穴４５ｂを、スペアタイヤキャリヤ２５の通常取付位置から車両前方に向かって車幅方向右方に屈曲する円弧状に形成してもよい。 Alternatively, as shown in FIG. 4(b), the left bolt hole 45b is extended from the normal mounting position of the spare tire carrier 25 to the front of the vehicle by, for example, several centimeters, and the left bolt hole 45b is inclined to the right in the vehicle width direction from the front end toward the front of the vehicle. It may also be formed to extend.
Alternatively, as shown in FIG. 4(c), the left bolt hole 45b may be formed in an arc shape that bends to the right in the vehicle width direction from the normal mounting position of the spare tire carrier 25 toward the front of the vehicle.
　なお、右ボルト穴４５ａについては、上記のような車両前方に延びる長穴以外でも、図４（ａ）のように、車両前方に向かって車幅方向右方に傾斜するように構成してもよい。
　また、左ボルト穴４５ｂを円弧状に形成した場合には、右ボルト穴４５ａを図４（ｃ）と同様に車両前方に向かって車幅方向右方に屈曲する円弧状にしてもよい。
　また、右ボルト穴４５ａは長孔としなくともよい。すなわち、２個のボルト穴４５ａ、４５ｂのうち、少なくとも後輪駆動ユニット２と反対側の左ボルト穴４５ｂを車両前方に向かって車幅方向で後輪駆動ユニット２と反対側に傾斜して延びた長穴とし、スペアタイヤキャリヤ２５を左ボルト穴４５ｂ後端部に固定すればよい。 Note that the right bolt hole 45a may be configured to be inclined to the right in the vehicle width direction toward the front of the vehicle, as shown in FIG. good.
Further, when the left bolt hole 45b is formed in an arc shape, the right bolt hole 45a may be formed in an arc shape that bends toward the front of the vehicle and to the right in the vehicle width direction, similarly to FIG. 4(c).
Further, the right bolt hole 45a does not have to be a long hole. That is, of the two bolt holes 45a and 45b, at least the left bolt hole 45b on the side opposite to the rear wheel drive unit 2 is inclined toward the front of the vehicle and extends toward the side opposite to the rear wheel drive unit 2 in the vehicle width direction. The spare tire carrier 25 may be fixed to the rear end portion of the left bolt hole 45b by using an elongated hole.
　以上のような後部構造である車両１では、後突時に相手車両やバンパリンフォース１５によりスペアタイヤ３が前方に押される。
　スペアタイヤ３を支持するスペアタイヤキャリヤ２５は、２本の固定用ボルト４６によって第１クロスメンバ２０に固定されているが、第１クロスメンバ２０に設けられた固定用ボルト４６を通すボルト穴４５ａ、４５ｂのうち、車幅方向左方側の左ボルト穴４５ｂが車両前方に向かって車幅方向右方に傾斜して延びた長穴になっているので、スペアタイヤ３は車両前方に移動する際にこの傾斜した左ボルト穴４５ｂがガイドになって車幅方向右方にも移動する。 In the vehicle 1 having the rear structure as described above, the spare tire 3 is pushed forward by the other vehicle or the bumper reinforcement force 15 at the time of a rear collision.
The spare tire carrier 25 that supports the spare tire 3 is fixed to the first cross member 20 by two fixing bolts 46, and a bolt hole 45a provided in the first cross member 20 through which the fixing bolts 46 are passed. , 45b, the left bolt hole 45b on the left side in the vehicle width direction is an elongated hole that extends toward the front of the vehicle and extends to the right in the vehicle width direction, so the spare tire 3 moves toward the front of the vehicle. At this time, the inclined left bolt hole 45b serves as a guide to move the vehicle to the right in the width direction.
　また、左ボルト穴４５ｂが右ボルト穴４５ａより車両前方まで延びているので、左側の固定用ボルト４６が右側の固定用ボルト４６よりも前進しやすく、スペアタイヤ３の車幅方向右方側への移動を促進させる。
　これにより、車両後突時にスペアタイヤ３が前方に移動したとしても後輪駆動ユニット２の車幅方向右方側に移動して、後輪駆動ユニット２への衝突を回避させることができる。後輪駆動ユニット２は、スペアタイヤ３の車幅方向中央よりも左方側にオフセットして配置されているので、例えスペアタイヤ３が大きく前方に移動したとしても、後輪駆動ユニット２の車幅方向右方側のスペースにスペアタイヤ３が移動して、後輪駆動ユニット２への衝突が回避される。 In addition, since the left bolt hole 45b extends further forward of the vehicle than the right bolt hole 45a, the left fixing bolt 46 can move forward more easily than the right fixing bolt 46, and the spare tire 3 can be moved to the right side in the vehicle width direction. promote the movement of people.
Thereby, even if the spare tire 3 moves forward at the time of a rear collision of the vehicle, it can move to the right side in the vehicle width direction of the rear wheel drive unit 2 and avoid a collision with the rear wheel drive unit 2. Since the rear wheel drive unit 2 is arranged offset to the left side of the center of the spare tire 3 in the vehicle width direction, even if the spare tire 3 moves significantly forward, the rear wheel drive unit 2 The spare tire 3 moves to the space on the right side in the width direction, and collision with the rear wheel drive unit 2 is avoided.
　また、前方移動したスペアタイヤ３は、ストッパ３０の後面３０ａに接することで、更なる前方への移動が規制される。スペアタイヤ３は、更に前方に移動しようとすると傾斜したストッパ３０の後面３０ａに沿って車幅方向右方側に移動する。
　これにより、スペアタイヤ３の後輪駆動ユニット２への衝突を回避させることができる。 Furthermore, the spare tire 3 that has moved forward comes into contact with the rear surface 30a of the stopper 30, and further forward movement is restricted. When the spare tire 3 attempts to move further forward, it moves to the right in the vehicle width direction along the inclined rear surface 30a of the stopper 30.
Thereby, collision of the spare tire 3 with the rear wheel drive unit 2 can be avoided.
　図５は、本発明の第２実施形態に係るスペアタイヤキャリヤ２５の固定部構造を示す上面図である。
　図５に示すように、第２実施形態に係る車両１では、スペアタイヤキャリヤ２５を支持する第１クロスメンバ２０に、第１クロスメンバ２０を補強するように、車幅方向に延在するとともに第１クロスメンバ２０の上壁２０ｂと下壁２０ａとを接合する板状のリンフォース５０が備えられている。 FIG. 5 is a top view showing the fixing part structure of the spare tire carrier 25 according to the second embodiment of the present invention.
As shown in FIG. 5, in the vehicle 1 according to the second embodiment, a first cross member 20 that supports a spare tire carrier 25 is provided with a structure extending in the vehicle width direction and reinforcing the first cross member 20. A plate-shaped reinforcement 50 is provided that joins the upper wall 20b and the lower wall 20a of the first cross member 20.
　リンフォース５０は、リンフォース後部５０ａ、リンフォース傾斜部５０ｂ、リンフォース前部５０ｃを有する。
　リンフォース後部５０ａは、左ボルト穴４５ｂの後方かつ車幅方向左方側の位置で車幅方向に延びるように構成されている。
　リンフォース傾斜部５０ｂは、リンフォース後部５０ａの車幅方向右端部から車両前方に向かって車幅方向右方に傾斜して左ボルト穴４５ｂより前方かつ車幅方向右方側まで延びるように構成されている。 The reinforcement 50 has a reinforcement rear part 50a, a reinforcement slope part 50b, and a reinforcement front part 50c.
The reinforcement rear portion 50a is configured to extend in the vehicle width direction at a position behind the left bolt hole 45b and on the left side in the vehicle width direction.
The reinforcement inclined portion 50b is configured to be inclined to the right in the vehicle width direction toward the front of the vehicle from the right end in the vehicle width direction of the reinforcement rear portion 50a, and to extend forward from the left bolt hole 45b and to the right side in the vehicle width direction. has been done.
　リンフォース前部５０ｃは、リンフォース傾斜部５０ｂの前端部から車幅方向右方に延びるように構成されている。
　また、スペアタイヤキャリヤ２５の固定用のボルト穴４５ａ、４５ｂについては、上記第１実施形態と同様に長穴になっている。
　このとき、左ボルト穴４５ｂは、リンフォース傾斜部５０ｂに沿って傾斜して延びるように形成されることが好ましい。 The reinforcement front portion 50c is configured to extend rightward in the vehicle width direction from the front end of the reinforcement inclined portion 50b.
Further, the bolt holes 45a and 45b for fixing the spare tire carrier 25 are elongated holes as in the first embodiment.
At this time, it is preferable that the left bolt hole 45b be formed to extend obliquely along the reinforcement inclined portion 50b.
　これにより、第２実施形態では、車両１の後突時にスペアタイヤ３が車両前方側に移動した場合に、固定用ボルト４６あるいは固定用ボルト４６に連結したスペアタイヤキャリヤ２５の一部がリンフォース傾斜部５０ｂに接触し、リンフォース傾斜部５０ｂ及び左ボルト穴４５ｂの傾斜に沿って、固定用ボルト４６及びスペアタイヤキャリヤ２５とともにスペアタイヤ３が車両前方に移動しながら車幅方向右方側に移動する。なお、第２実施形態においても、第１実施形態と同様のストッパ３０を設けてもよい。 As a result, in the second embodiment, when the spare tire 3 moves toward the front side of the vehicle at the time of a rear collision of the vehicle 1, the fixing bolt 46 or a part of the spare tire carrier 25 connected to the fixing bolt 46 is used as a reinforcement. The spare tire 3 comes into contact with the inclined part 50b and moves along the reinforcement inclined part 50b and the inclination of the left bolt hole 45b, along with the fixing bolt 46 and the spare tire carrier 25, toward the front of the vehicle and to the right in the vehicle width direction. Moving. Note that the second embodiment may also be provided with the same stopper 30 as in the first embodiment.
　本発明は、上記の実施形態に限定するものではない。例えば上記実施形態において、ストッパ３０等の各種部品の形状を適宜変更してもよい。 The present invention is not limited to the above embodiments. For example, in the embodiment described above, the shapes of various parts such as the stopper 30 may be changed as appropriate.
　　１　車両
　　２　後輪駆動ユニット（車両搭載機器）
　　３　スペアタイヤ
　　５ａ、５ｂ　サイドメンバ
　　２０　第１クロスメンバ（クロスメンバ）
　　３０　　ストッパ（プロテクタ）
　　４５ａ、４５ｂ　　ボルト穴（取付穴）
　　４６　　固定用ボルト
　　５０　リンフォース

  1 Vehicle 2 Rear wheel drive unit (vehicle mounted equipment)
3 Spare tire 5a, 5b Side member 20 First cross member (cross member)
30 Stopper (protector)
45a, 45b Bolt holes (mounting holes)
46 Fixing bolt 50 Reinforcement

Claims (6)

  1. 　車両の車幅方向に間隔を置いて配置され車両前後方向に延びる一対のサイドメンバと、
    　前記一対のサイドメンバの後部を連結するように車幅方向に延びるクロスメンバと、
    　前記クロスメンバの前方に配置された車両搭載機器と、
    　前記車両搭載機器の後方において前記クロスメンバに支持されるスペアタイヤと、
    を備え、
    　前記車両搭載機器は、前記スペアタイヤの中心よりも車幅方向一方側に位置し、
    　前記クロスメンバには、前記スペアタイヤを取り付けるための取付孔が設けられており、
    　前記取付孔は、車両前方に向かって車幅方向他方側に傾斜して延びる長孔である
    ことを特徴とする車両の後部構造。     a pair of side members arranged at intervals in the vehicle width direction and extending in the vehicle longitudinal direction;
    a cross member extending in the vehicle width direction so as to connect the rear portions of the pair of side members;
    vehicle-mounted equipment located in front of the cross member;
    a spare tire supported by the cross member behind the vehicle-mounted equipment;
    Equipped with
    The vehicle-mounted equipment is located on one side in the vehicle width direction from the center of the spare tire,
    The cross member is provided with a mounting hole for mounting the spare tire,
    The rear structure of a vehicle, wherein the attachment hole is an elongated hole that extends toward the front of the vehicle at an angle to the other side in the vehicle width direction.
  2. 　前記取付孔は、車両前方ほど車両前後方向に対する傾斜が大きくなるように前記車幅方向他方側に傾斜して延びている
    ことを特徴とする請求項１に記載の車両の後部構造。     2. The rear structure of a vehicle according to claim 1, wherein the mounting hole extends at an inclination toward the other side in the vehicle width direction so that the inclination with respect to the longitudinal direction of the vehicle becomes larger toward the front of the vehicle.
  3. 　前記取付孔は、車幅方向に間隔を置いて一対設けられ、
    　前記車幅方向一方側に位置する前記取付孔は、前記車幅方向他方側に向かい傾斜して延びており、前記車幅方向他方側に位置する前記取付孔に比べ車両前方まで延びる
    ことを特徴とする請求項１又は２に記載の車両の後部構造。     A pair of the mounting holes are provided at intervals in the vehicle width direction,
    The mounting hole located on one side in the vehicle width direction extends obliquely toward the other side in the vehicle width direction, and extends farther forward of the vehicle than the mounting hole located on the other side in the vehicle width direction. The rear structure of a vehicle according to claim 1 or 2.
  4. 　前記クロスメンバには、内部に前記取付孔の前方を通るように車幅方向に延びるリンフォースが設けられ、
    　前記リンフォースは、前記取付孔の前方に位置する箇所で前方かつ前記車幅方向他方側に向かい傾斜する
    ことを特徴とする請求項１又は２に記載の車両の後部構造。     The cross member is provided with a reinforcement extending in the vehicle width direction so as to pass in front of the mounting hole,
    3. The vehicle rear structure according to claim 1, wherein the reinforcement is inclined forward and toward the other side in the vehicle width direction at a location located in front of the attachment hole.
  5. 　前記車両搭載機器と前記スペアタイヤとの間に、プロテクタが設けられ、
    　前記プロテクタの後面は、前方かつ前記車幅方向他方側に向かい傾斜する
    ことを特徴とする請求項１又は２に記載の車両の後部構造。     A protector is provided between the vehicle-mounted equipment and the spare tire,
    3. The vehicle rear structure according to claim 1, wherein the rear surface of the protector is inclined toward the front and the other side in the vehicle width direction.
  6. 　前記車両は電動車両であり、
    　前記車両搭載機器は、走行用モータを含む後輪駆動ユニットである、
    ことを特徴とする請求項１又は２に記載の車両の後部構造。

          The vehicle is an electric vehicle,
    The vehicle-mounted equipment is a rear wheel drive unit including a travel motor.
    The vehicle rear structure according to claim 1 or 2, characterized in that:
PCT/JP2023/025742 2022-07-14 2023-07-12 Vehicle rear structure WO2024014481A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-112862 2022-07-14
JP2022112862 2022-07-14

Publications (1)

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ID=89536795

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Application Number Title Priority Date Filing Date
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008143370A (en) * 2006-12-11 2008-06-26 Nissan Motor Co Ltd Spare tire hanger of vehicle
JP2012140055A (en) * 2010-12-28 2012-07-26 Suzuki Motor Corp Motor mount structure of electric vehicle
JP2017141719A (en) * 2016-02-09 2017-08-17 三菱自動車工業株式会社 Canister of vehicle and arrangement structure of atmospheric air communication pipe
JP2018043655A (en) * 2016-09-15 2018-03-22 三菱自動車工業株式会社 Spare tire falling prevention device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008143370A (en) * 2006-12-11 2008-06-26 Nissan Motor Co Ltd Spare tire hanger of vehicle
JP2012140055A (en) * 2010-12-28 2012-07-26 Suzuki Motor Corp Motor mount structure of electric vehicle
JP2017141719A (en) * 2016-02-09 2017-08-17 三菱自動車工業株式会社 Canister of vehicle and arrangement structure of atmospheric air communication pipe
JP2018043655A (en) * 2016-09-15 2018-03-22 三菱自動車工業株式会社 Spare tire falling prevention device

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