JPS5889418A - Automobile's rear bumper - Google Patents

Automobile's rear bumper

Info

Publication number
JPS5889418A
JPS5889418A JP18672481A JP18672481A JPS5889418A JP S5889418 A JPS5889418 A JP S5889418A JP 18672481 A JP18672481 A JP 18672481A JP 18672481 A JP18672481 A JP 18672481A JP S5889418 A JPS5889418 A JP S5889418A
Authority
JP
Japan
Prior art keywords
bumper
frame
rear bumper
shock absorbing
automobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18672481A
Other languages
Japanese (ja)
Other versions
JPS6218380B2 (en
Inventor
Takashi Mizuma
孝 水間
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP18672481A priority Critical patent/JPS5889418A/en
Publication of JPS5889418A publication Critical patent/JPS5889418A/en
Publication of JPS6218380B2 publication Critical patent/JPS6218380B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To easily perform loading and unloading in a rear bumper of an automobile which has a rear opening by attaching a trisected bumper to a trisected frame, said trisected bumper having the shock absorbing substance covered with an outer layer, and by having the middle part of the frame rotatable when the door is opened. CONSTITUTION:Lowering of a rear bumper consists of unfastening a back door lock 25, opening a back door 5, turning an engagement lever 32 of an engagement device 30 clockwise, separating the middle part 7b of a bumper 7 at its left and right ends and downward turning the middle bumper about the axis 21 of a hinge 20 along with the middle part 11b of a frame 11. For returning the rear bumper, the corresponding processes are reversely performed. Since the rear bumper may be kept at a position below the floor while loading or unloading, goods is easily handled and the frame 11 having a closed section may enhance the strength so that the bumper performance is improved in cooperation with the shock absorbing substance 15b.

Description

【発明の詳細な説明】 本発明は、自動車のリアバンパに関する。[Detailed description of the invention] The present invention relates to a rear bumper for an automobile.

従来、自動車のバンパは、衝突時の衝撃を緩和するとと
もに、損傷を軽減するために設けられている。この機能
を果すためには、バンパは地上から適当な高さの位置、
すなわち、自動車のフロアの通常の位置に取付ける必要
があるが、いわゆるパンタイプの自動車においては、後
部荷室の容積を大きくするため荷室床面を下げたものが
あり、このため、荷室床面が前記バンパ取付は位置より
も低くなって、両者間に段差が生じていた。上記構造の
自動車においては、荷物の積卸しの際、特に重量物など
を取扱う場合は、バンパが障害となって積卸し作業が非
常に困難になるという欠点がある。この点を改善するた
めに、バックドアにバンパを取付けた構造（特開昭６６
−１０２７グｊ参照）があるが、この場合、バックドア
に単にバンパを取付けただけではバックドアが衝突時の
衝撃を直接受けるためバンパ強度および衝撃緩和の点で
不充分であるという問題がある。BACKGROUND ART BACKGROUND OF THE INVENTION Conventionally, bumpers for automobiles have been provided to cushion the impact and reduce damage during a collision. In order to perform this function, the bumper must be positioned at an appropriate height from the ground.
In other words, it must be installed in the normal position on the car floor, but some so-called pan-type cars have a lowered cargo area floor to increase the volume of the rear cargo area. The surface was lower than the bumper mounting position, and a step was created between the two. The automobile of the above structure has a disadvantage that the bumper becomes an obstacle and makes loading and unloading very difficult, especially when handling heavy objects. In order to improve this point, a bumper was attached to the back door (Japanese Unexamined Patent Publication No. 66
However, in this case, simply attaching a bumper to the back door is insufficient in terms of bumper strength and impact mitigation, as the back door will directly receive the impact of the collision. .

本考案は上記欠点に鑑みてなされたものであってリアフ
ロア後端部に閉断面構造に形成したフレームの下部を回
動自在に取付け、該フレームには、上部にバックドア下
端を掛止めするバックドアロ成することにより、荷室床
面がバンパ取付は位置よりも下方に位置する構造であっ
ても、バンパが障害となることなく、容易に荷物の積卸
しを行なうことができ、さらに、バンパ本来の機能も充
分に具備した自動車のリアバンパを得ることを目的とす
る。The present invention was developed in view of the above-mentioned drawbacks, and the lower part of a frame formed with a closed section structure is rotatably attached to the rear end of the rear floor, and the lower end of the back door is attached to the upper part of the frame. Even if the cargo compartment floor is located below the bumper installation position, it is possible to easily load and unload cargo without the bumper becoming an obstacle. The object of the present invention is to obtain a rear bumper for an automobile that is fully equipped with the following functions.

以下、本発明の構成について、図面に示す実施例に基づ
いて説明する。The configuration of the present invention will be described below based on embodiments shown in the drawings.

車体後部１（車体中央より左側部分は図示省略）のリア
フロア２は、該車体後部の荷室床面を構成するリアフロ
アパネル３と、該リアフロアパネルの１〜面の左右に固
設されて車体の前後方向を補強するリアサイドフレーム
４とで左右において閉断面を形成している。また、上記
リアフロア２の後端部が下縁となり、バックドア５の下
端部が上縁となり、サイドパネル８の後部両側から内側
に延設されてなるバックパネル９の両側縁部が側縁とな
って、後部開口６が形成されている。The rear floor 2 of the rear part of the vehicle body 1 (the left side part from the center of the vehicle body is omitted) is connected to a rear floor panel 3 that constitutes the floor surface of the luggage compartment at the rear of the vehicle body, and is fixedly installed on the left and right sides of surfaces 1 to 1 of the rear floor panel. A closed section is formed in the left and right sides with the rear side frame 4 that reinforces the front and back directions. Further, the rear end of the rear floor 2 serves as a lower edge, the lower end of the back door 5 serves as an upper edge, and both side edges of the back panel 9 extending inward from both rear sides of the side panel 8 serve as side edges. Thus, a rear opening 6 is formed.

リアパンパフは、左右の端部７ａ（左側の端部は図示省
略）と、両端部７ａ間に挾まれている中央部７ｂとで三
分割して形成されており、これにともないフレーム１１
も両端部フレーム１１ａと中央部フレーム１１ｂに三分
割されている。中央部７ｂがバックドア５に掛止された
状態において、中央部７ｂは後部開口６に合致するとと
もに、両端部７ｂとで横方向に一直線上に位置するよう
に配置されている。また、中央部７ｂは、アウタフレー
ム１２ｂとインチフレーム１３ｂとを互いに上下に突出
して上下のフランジ部１８．１９を形成し、該フランジ
部を接合して閉断面構造の中央部フレーム１１ｂ−が形
成されている。そして、下フランジ部１８がリアサイド
フレーム４の後端部に、支軸２１を有するヒンジ２０を
介して、それぞれボルト２２ａ　、２２ｂとナツト２３
ａ、２３ｂで取付けられており、これにより、リアパン
パフの中央部７ｂは支軸２１を中心に下方に回動される
。さらに、中央部フレーム１１ｂの上部にはバックドア
５に設けたロック２７を掛止めするストライカ２６が取
付けられており、該ストライカとロック２７でパックド
アロツク２５が構成され、一方、アウタフレーム１２ｂ
の後面には、ウレタン樹脂その他の発泡性樹脂からなる
衝撃吸収部材１５ｂが固定され、該衝撃吸収部材を覆う
樹脂、ゴム等からなる表皮材１６ｂの上下端は、アウタ
フレーム１２ｂに止め具１７で取り付けられている。な
お、２８は中央部フレーム１１ｂに取り付けたシール部
材である。The rear bread puff is divided into three parts: left and right ends 7a (the left end is not shown) and a center part 7b sandwiched between both ends 7a.
It is also divided into three parts, into both end frames 11a and a central frame 11b. In a state in which the central portion 7b is hooked to the back door 5, the central portion 7b is aligned with the rear opening 6 and is arranged so as to be located on a straight line in the lateral direction with both end portions 7b. In addition, the central portion 7b has an outer frame 12b and an inch frame 13b that protrude vertically from each other to form upper and lower flange portions 18,19, and the flange portions are joined to form a central portion frame 11b- having a closed cross-section structure. has been done. The lower flange portion 18 is attached to the rear end portion of the rear side frame 4 via a hinge 20 having a support shaft 21, and bolts 22a, 22b and nuts 23, respectively.
a, 23b, and as a result, the center portion 7b of the rear bread puff is rotated downward about the support shaft 21. Further, a striker 26 for latching a lock 27 provided on the back door 5 is attached to the upper part of the central frame 11b, and the striker and the lock 27 constitute a pack door lock 25. On the other hand, the outer frame 12b
A shock absorbing member 15b made of urethane resin or other foamed resin is fixed to the rear surface, and the upper and lower ends of a skin material 16b made of resin, rubber, etc. that covers the shock absorbing member are attached to the outer frame 12b with fasteners 17. installed. Note that 28 is a sealing member attached to the central frame 11b.

リアパンパフの左右の端部７ａも中央部７ｂとほぼ同様
の構造であって、アウタフレーム１２ａとインナフレー
ム１３ａとを接合して閉断面構造に形成した端部フレー
ム１１ａ、衝撃吸収部材１５ａおよび表皮材１６＆で構
成されており、インナフレーム１３ａがバックパネル９
に固定され、また、表皮材１６ａはサイドパネル８側方
にまで延設されている。The left and right end portions 7a of the rear bread puff have almost the same structure as the center portion 7b, and include an end frame 11a formed into a closed cross-sectional structure by joining an outer frame 12a and an inner frame 13a, a shock absorbing member 15a, and a skin material. 16&, the inner frame 13a is connected to the back panel 9.
Further, the skin material 16a extends to the side of the side panel 8.

リアパンパフの中央部７ｂを両端部７ａに係止するため
リアパンパフには係止装置３０が設けられており、その
操作軸３１はインナフレーム１３ｂを貫通し、該操作軸
の前方側端部には係止レバー３２が、後方側の他端部に
は上下対象に形成したアーム６３がそれぞれ取り付けら
れ、該アームから左右にリンク６５と先端先細の係止部
材６６が順次連設され、また、リアパンパフの中央部７
ｂと端部７ａの相互対向部分には、それぞれ側端板３８
ｂ、３８ａが取り付けられている。そして、係止部材３
６は側端板３８ｂの支持孔３９に常時嵌挿されており、
かつ、操作軸３１．１：に巻回されたスプリング３７に
よって、側端板３８ａの係止孔４０に嵌合すべく左右方
向に付勢されている。The rear bread puff is provided with a locking device 30 for locking the center portion 7b of the rear bread puff to both ends 7a, the operating shaft 31 of which passes through the inner frame 13b, and the front end of the operating shaft is provided with a locking device 30. The other end of the locking lever 32 on the rear side is attached to an arm 63 formed vertically symmetrically, and a link 65 and a locking member 66 with a tapered tip are successively connected to the left and right sides of the arm. Central part 7
A side end plate 38 is provided at the mutually opposing portions of b and end 7a, respectively.
b, 38a are attached. And the locking member 3
6 is always fitted into the support hole 39 of the side end plate 38b,
Further, the operating shaft 31.1 is biased in the left-right direction by a spring 37 wound around the operating shaft 31.1 so as to fit into the locking hole 40 of the side end plate 38a.

次に、作用について説明すると、リアパンパフの中央部
７ｂにバックドア５が掛止された状態においては、係止
部材３６が側端板３８ａの係止孔４０に嵌挿され、中央
部７ｂが端部７ａに係止されている。Next, to explain the operation, when the back door 5 is hooked to the center portion 7b of the rear pan puff, the locking member 36 is fitted into the locking hole 40 of the side end plate 38a, and the center portion 7b is attached to the end. It is locked to the portion 7a.

この状態から荷物の積卸しをする場合は、パックドアロ
ツク２５を解除してバックドア５を開き、続いて、係止
装置３０の係止レバー３２をスプリング３７の力に抗し
て本例では時計方向に回動すると、係止部材３６は端部
７ａの係止孔４０から抜き出され、中央部７ｂはヒンジ
２０の支軸２１を中心に下方に回動される。To load or unload cargo from this state, release the pack door lock 25, open the back door 5, and then pull the locking lever 32 of the locking device 30 against the force of the spring 37 in this example. When rotated clockwise, the locking member 36 is pulled out from the locking hole 40 of the end portion 7a, and the center portion 7b is rotated downward about the support shaft 21 of the hinge 20.

次に、中央部７ｂを端部７ａに係止するには、係止レバ
ー３２を時計方向に回動後、中央部７ｂを上方に回動し
、続いて、係止レバー３２を開放すると、スプリング６
７によって係止部材３６が端部７ａの係止孔４０に嵌合
される。Next, to lock the center portion 7b to the end portion 7a, rotate the locking lever 32 clockwise, then rotate the center portion 7b upward, and then release the locking lever 32. Spring 6
7, the locking member 36 is fitted into the locking hole 40 of the end portion 7a.

なお、本例では、リアバンパのフレーム、衝撃吸収部材
および表皮材を全て左右の端部７ａと中央部７ｂとに三
分割して形成したが、フレームのみを三分割とし、衝撃
吸収部材と表皮材は、それぞれ、一体形成した構造にす
ることもできる。In this example, the rear bumper frame, shock absorbing member, and skin material are all divided into three parts, the left and right ends 7a and the center part 7b, but only the frame is divided into three parts, and the shock absorbing member and the skin material They can each be integrally formed.

以上、本発明によればリアバンパをリアフロア後端部に
回動自在に取り付けたので荷物の積降しの際にはこのリ
アバンパを下方に回動ずれば、リアバンパは荷室床面を
構成するリアフロアパネルよりも下方に位置することに
なり、リアバンパが荷物の積降しの障害となることなく
容易に積降し作業を行なうことができる。さらに、フレ
ームを閉断面構造としたのでリアバンパの強度が高く、
また、フレームに衝撃吸収部材を固定したので、衝突時
の衝撃を吸収して車体本体の損傷を充分に軽減すること
ができる。As described above, according to the present invention, since the rear bumper is rotatably attached to the rear end of the rear floor, when loading and unloading cargo, the rear bumper can be rotated downward, and the rear bumper can be moved to the rear floor that forms the floor of the cargo compartment. Since the rear bumper is located below the panel, loading and unloading can be easily carried out without the rear bumper becoming an obstacle to loading and unloading. Furthermore, the frame has a closed cross-section structure, which increases the strength of the rear bumper.
Furthermore, since the shock absorbing member is fixed to the frame, it is possible to absorb the shock at the time of a collision and sufficiently reduce damage to the vehicle body.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の自動車のリアバンパの実施例を示し、第
１図は中央縦断正面図、第２図は第１図の１１１１線の
右側部分のみを示す切断平面図、第３図は車体後部の右
側部分のみを示す斜視図である。 １・・・・・・車体後部、２・・・・・・リアフロア、
５・・・・・・バックドア、６・・・・・・後部開口、
７・・・・・・リアバンパ、１１・・・・・・フレーム
％１１ａ・・・・・・端部フレーム、１１ｂ・・・・・
・中央部フレーム、１５ａ、１５ｂ・旧・・衝撃吸収部
材、１６ａ、１６ｂ・・・・・・表皮材、２５・・・・
・・パックドアロックThe drawings show an embodiment of the rear bumper for an automobile according to the present invention, in which Fig. 1 is a central longitudinal sectional front view, Fig. 2 is a cutaway plan view showing only the right side of line 1111 in Fig. 1, and Fig. 3 is a cross-sectional view of the rear bumper of the vehicle. It is a perspective view showing only a right side part. 1... Rear part of the vehicle body, 2... Rear floor,
5... Back door, 6... Rear opening,
7...Rear bumper, 11...Frame% 11a...End frame, 11b...
・Central frame, 15a, 15b・Old...Shock absorbing member, 16a, 16b...Skin material, 25...
・Pack door lock

Claims (2)

【特許請求の範囲】[Claims] （１）車体後部に後部開口を有する自動車において、前
記後部開口の下縁を構成するリアフロア後端部に、閉断
面構造に形成したフレームの下部を回動自在に取付け、
該フレームには、上部にバックドア下端を掛止めするパ
ックドアロツクを設けるとともに、後部に衝撃吸収部材
と該衝撃吸収部材を覆う表皮材を取付けてなる自動車の
リアバンパ。(1) In an automobile having a rear opening at the rear of the vehicle body, a lower part of a frame formed in a closed cross-section structure is rotatably attached to the rear end of the rear floor that constitutes the lower edge of the rear opening,
A rear bumper for an automobile, in which the frame is provided with a pack door lock for locking the lower end of the back door at the upper part, and a shock absorbing member and a skin material covering the shock absorbing member are attached to the rear part. （２）閉断面構造のフレームは、車体後面の左右の端部
にそれぞれ固定された閉断面構造のフレーム間に位置す
る中央部フレームである特許請求の範囲第１項記載の自
動車のリアバンパ。(2) The rear bumper for an automobile according to claim 1, wherein the frame having a closed cross-section structure is a central frame located between the frames having a closed cross-section structure fixed to the left and right ends of the rear surface of the vehicle body, respectively.
JP18672481A 1981-11-19 1981-11-19 Automobile's rear bumper Granted JPS5889418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18672481A JPS5889418A (en) 1981-11-19 1981-11-19 Automobile's rear bumper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18672481A JPS5889418A (en) 1981-11-19 1981-11-19 Automobile's rear bumper

Publications (2)

Publication Number Publication Date
JPS5889418A true JPS5889418A (en) 1983-05-27
JPS6218380B2 JPS6218380B2 (en) 1987-04-22

Family

ID=16193518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18672481A Granted JPS5889418A (en) 1981-11-19 1981-11-19 Automobile's rear bumper

Country Status (1)

Country Link
JP (1) JPS5889418A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678872A (en) * 1996-04-08 1997-10-21 Ford Global Technologies, Inc. Concealable vehicle bumper step
JP2003104141A (en) * 2001-09-28 2003-04-09 Mazda Motor Corp Rear bumper structure of vehicle
EP1470966A1 (en) * 2003-03-31 2004-10-27 Mazda Motor Corporation Rear bumper structure for a vehicle and vehicle provided therewith
JP2011079392A (en) * 2009-10-06 2011-04-21 Nissan Motor Co Ltd Vehicle body seal structure
JP2022107256A (en) * 2021-01-08 2022-07-21 本田技研工業株式会社 Rear bumper structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678872A (en) * 1996-04-08 1997-10-21 Ford Global Technologies, Inc. Concealable vehicle bumper step
JP2003104141A (en) * 2001-09-28 2003-04-09 Mazda Motor Corp Rear bumper structure of vehicle
EP1470966A1 (en) * 2003-03-31 2004-10-27 Mazda Motor Corporation Rear bumper structure for a vehicle and vehicle provided therewith
US6926326B2 (en) 2003-03-31 2005-08-09 Mazda Motor Corporation Rear bumper structure for vehicle
JP2011079392A (en) * 2009-10-06 2011-04-21 Nissan Motor Co Ltd Vehicle body seal structure
JP2022107256A (en) * 2021-01-08 2022-07-21 本田技研工業株式会社 Rear bumper structure

Also Published As

Publication number Publication date
JPS6218380B2 (en) 1987-04-22

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