JPS645637Y2 - - Google Patents
Info
- Publication number
- JPS645637Y2 JPS645637Y2 JP1983163279U JP16327983U JPS645637Y2 JP S645637 Y2 JPS645637 Y2 JP S645637Y2 JP 1983163279 U JP1983163279 U JP 1983163279U JP 16327983 U JP16327983 U JP 16327983U JP S645637 Y2 JPS645637 Y2 JP S645637Y2
- Authority
- JP
- Japan
- Prior art keywords
- bumper
- vehicle speed
- detection means
- ground height
- vehicle
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 25
- 230000009194 climbing Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
Description
【考案の詳細な説明】
〈技術分野〉
本考案は地上高を調整できる車両用バンパ装置
に関する。[Detailed Description of the Invention] <Technical Field> The present invention relates to a bumper device for a vehicle that can adjust the height above the ground.
〈背景技術〉
トラツク、バス等の大型車両はオーバーハング
が長いため、凹凸の路面、登坂、降坂時等にバン
パと地面との干渉を防止できるようデイパーチヤ
アングルを確保するためには、バンパの地上高を
ある程度以上高くする必要があつた。このため
に、大型車両におけるバンパ位置は、乗用車等小
型車両のバンパ位置よりも高くなり、例えば乗用
車が衝突した場合、乗用車の前部がバンパの下方
から潜り込んでしまう恐れがあつた。<Background technology> Large vehicles such as trucks and buses have long overhangs, so in order to ensure a daypart steering angle that prevents interference between the bumper and the ground on uneven roads, when climbing or descending slopes, etc. It was necessary to increase the bumper's ground clearance to a certain level. For this reason, the bumper position of a large vehicle is higher than that of a small vehicle such as a passenger car, and for example, in the event of a collision, there is a risk that the front portion of the passenger car may slide under the bumper.
このような問題を解消するため、実開昭58−
15562号公報に示されるバンパの地上高を検出し
その検出値に基づいてバンパを昇降させてバンパ
の地上高を一定に制御するようにしたものや、特
開昭52−69135号公報に示されるバンパが地面に
接触したときにバンパを自動的に上昇させるよう
にしたものが提案されている。 In order to solve this problem, the
There is a system that detects the bumper's ground height and controls the bumper's ground height to a constant level by raising and lowering the bumper based on the detected value, as shown in Japanese Patent Application Laid-open No. 15562, and as shown in Japanese Patent Application Laid-Open No. 52-69135. A system has been proposed in which the bumper is automatically raised when the bumper contacts the ground.
しかしながら、前述のバンパ装置の場合、バン
パ装置が作動状態になつたままで車両が停車して
いるようなときに、例えば車両近傍で作業等をす
るような場合に、地上高センサが車両周囲の何ら
かに反応して昇降信号を出力したり、マイクロス
イツチがオンしたりしたときには、バンパが上昇
してしまうため不必要な昇降作動を行うという欠
点があつた。 However, in the case of the above-mentioned bumper device, when the bumper device is activated and the vehicle is stopped, for example when working near the vehicle, the ground height sensor is When a lift signal is output or a micro switch is turned on in response to a movement, the bumper rises, resulting in an unnecessary lift operation.
〈考案の目的〉
本考案は上記の実情に鑑みてなされたもので、
車速が所定値より大のとき、即ち、通常の走行時
は地上高検出手段の検出値に応じてバンパを昇降
制御し、車速が所定値以下、例えば停止している
ようなときにはバンパの昇降制御手段の作動と停
止させる構成とすることにより、この種のバンパ
装置の安全性を向上させることを目的とする。<Purpose of the invention> This invention was made in view of the above circumstances.
When the vehicle speed is higher than a predetermined value, that is, during normal driving, the bumper is controlled to rise and fall according to the detected value of the ground clearance detection means, and when the vehicle speed is less than a predetermined value, for example, when the vehicle is stopped, the bumper is controlled to rise and fall. The purpose of this invention is to improve the safety of this type of bumper device by activating and stopping the means.
〈考案の概要〉
このため、本考案は車体に昇降自在に装着した
バンパの地上高を検出する検出手段と、この検出
手段からの信号に基づいてバンパを昇降駆動する
駆動手段とを備えたバンパ昇降制御手段を設ける
と共に、車速を検出する車速検出手段と、該車速
検出手段の検出車速が所定値以下か否かを判別す
る車速判定回路と、該車速判定回路が所定値より
大と判定したとき前記地上高検出手段へ駆動信号
を出力し所定値以下と判定したとき地上高検出手
段へ停止信号を出力する地上高検出手段の駆動手
段とからなるバンパ駆動停止手段を設けて構成し
た。<Summary of the invention> For this reason, the present invention provides a bumper equipped with a detection means for detecting the ground height of a bumper mounted on a vehicle body so as to be able to move up and down, and a drive means for driving the bumper up and down based on a signal from the detection means. In addition to providing a lift control means, a vehicle speed detection means for detecting the vehicle speed, a vehicle speed determination circuit for determining whether the vehicle speed detected by the vehicle speed detection means is less than or equal to a predetermined value, and a vehicle speed determination circuit that determines that the vehicle speed detected by the vehicle speed detection means is greater than the predetermined value. A bumper drive stop means is provided, which includes a drive means for the ground height detection means, which outputs a drive signal to the ground height detection means when the vehicle is in use, and a drive means for the ground height detection means which outputs a stop signal to the ground height detection means when it is determined that the ground height is below a predetermined value.
〈実施例〉
以下、本考案の実施例を図面に基づいて説明す
る。<Example> Hereinafter, an example of the present invention will be described based on the drawings.
第１図は本考案のバンパ装置をリヤバンパに適
用した実施例を示したものである。 FIG. 1 shows an embodiment in which the bumper device of the present invention is applied to a rear bumper.
図において荷台１を支持するフレーム２の後部
下面にブラケツト３を固定し、先端にリヤバンパ
４を固着したバンパステー５を前記ブラケツト３
にピン６を介して回動自在に取り付ける。また、
前記フレーム２には、ブラケツト７を介してベル
クランク８がその中間部において回動自在に支持
されており、ベルクランク８の一端は、前記バン
パステー５に固定されたリンク９の一端と相互回
動自在に連結されると共に、フレーム２に固定し
たブラケツト１０との間に張架したスプリング１
１により図中反時計方向に弾性付勢される。一
方、ベルクランク８の他端には例えばダイアフラ
ム式のアクチユエータ１２のロツド１３の先端が
相互回転自在に連結している。前記アクチユエー
タ１２はコントロールユニツト２０からの信号に
より切り換わる三方電磁弁１５を介して図示しな
いエアリザーバ又は大気と連通可能に構成され、
エアリザーバと連通したときには、エアリザーバ
からの圧縮空気によりロツド１３が図中矢印方向
に移動するようになつている。１６は車速を検出
する車速センサ、１７はリヤバンパ４の地上高を
検出する例えば赤外線或いは超音波を利用した地
上高センサであり、これらの検出信号はコントロ
ールユニツト２０に入力されている。１８はタイ
ヤである。 In the figure, a bracket 3 is fixed to the rear lower surface of a frame 2 that supports a loading platform 1, and a bumper stay 5 with a rear bumper 4 fixed to the tip is attached to the bracket 3.
It is rotatably attached via pin 6 to. Also,
A bell crank 8 is rotatably supported by the frame 2 at its intermediate portion via a bracket 7, and one end of the bell crank 8 is rotatably connected to one end of a link 9 fixed to the bumper stay 5. A spring 1 is freely connected and stretched between a bracket 10 fixed to a frame 2.
1, it is elastically biased counterclockwise in the figure. On the other hand, the tips of rods 13 of a diaphragm actuator 12, for example, are connected to the other end of the bell crank 8 so as to be mutually rotatable. The actuator 12 is configured to be able to communicate with an air reservoir (not shown) or the atmosphere via a three-way solenoid valve 15 that is switched by a signal from the control unit 20.
When communicating with the air reservoir, the rod 13 is moved in the direction of the arrow in the figure by compressed air from the air reservoir. 16 is a vehicle speed sensor that detects the vehicle speed; 17 is a ground height sensor that uses, for example, infrared rays or ultrasonic waves to detect the height of the rear bumper 4 above the ground; these detection signals are input to the control unit 20. 18 is a tire.
次に第２図を参照してコントロールユニツト２
０の回路構成を説明する。 Next, referring to Figure 2, control unit 2.
The circuit configuration of 0 will be explained.
このコントロールユニツト２０は、車速センサ
１６からの車速信号に基づいて車速が所定値以下
か否かを判別し、所定値よりも大きいときに出力
する車速判定回路２１と、該車速判定回路２１か
らの出力があつたときに地上高センサ１７に駆動
信号を出力する地上高センサ駆動回路と、地上高
センサ１７からの検出信号を受けてリヤバンパ４
の地上高を判定する地上高判定回路２３と、該地
上高判定回路２３からの出力に応じてアクチユエ
ータ１２を駆動すべき三方電磁弁１５を切換駆動
するアクチユエータ駆動回路２４とで構成されて
いる。 The control unit 20 includes a vehicle speed determination circuit 21 that determines whether the vehicle speed is below a predetermined value based on a vehicle speed signal from the vehicle speed sensor 16 and outputs an output when the vehicle speed is greater than the predetermined value; A ground clearance sensor drive circuit that outputs a drive signal to the ground clearance sensor 17 when an output is received, and a rear bumper 4 that receives a detection signal from the ground clearance sensor 17.
The ground clearance determination circuit 23 determines the ground clearance of the vehicle, and the actuator drive circuit 24 switches and drives the three-way solenoid valve 15 that drives the actuator 12 in accordance with the output from the ground clearance determination circuit 23.
ここで、前記車速センサ１６、車速判定回路２
１及び地上高センサ駆動回路２２とでバンパ駆動
停止手段を構成する。 Here, the vehicle speed sensor 16 and the vehicle speed determination circuit 2
1 and the ground height sensor drive circuit 22 constitute bumper drive stop means.
次に第３図のフローチヤートを参照しながら作
用を説明する。 Next, the operation will be explained with reference to the flowchart shown in FIG.
バンパ装置の電源をオンして走行を開始する
と、車速センサ１６が例えば車輪の回転から車速
を検出しコントロールユニツト２０の車速判定回
路２１にその検出信号を送る。車速判定回路２１
では、この検出信号に基づく車速Ｖが所定値V0
より大きいか否かを判定し、NO（V0≧Ｖ）のと
きには出力せず、次の車速信号を待つ。この状態
が繰り返されるうちに車両速度が上がり、検出車
速Ｖが所定値V0より大きく（V0＜Ｖ）なるYES
と判定し、地上高センサ駆動回路２２に出力する
Ｓ１，Ｓ２。この出力を受けて地上高センサ駆動
回路２２は地上高センサ１７に駆動信号を出力し
バンパ４の地上高検出が開始されるＳ３。前記地
上高検出が開始されると、地上高センサ１７から
の信号を受けて地上高判定回路２３により検出値
ｈが設定値h0より高いか否かが判定されＳ４、低
いとき（ｈ＜h0）にはYESと判定し、この判定
信号に基づいてアクチユエータ駆動回路２４から
所定時間出力を発しＳ５、三方電磁弁１５を作動
させてアクチユエータ１２をエアリザーバに接続
する。すると、アクチユエータ１２にエアが供給
されロツド１３が図中矢印方向に移動して、ベル
クランク８がスプリング１１のばね力に抗して図
中時計方向に回動する。この回動に伴つてリンク
９、バンパステー５を介してバンパ４が図中破線
で示す位置まで上昇し、地面との干渉を確実に防
止する。また、地上高判定回路２３がNO（h0≦
ｈ）の判定をしたときには、この判定信号に基づ
いて三方電磁弁１５によりアクチユエータ１２を
大気に開放する。これにより、スプリング１１の
ばね力によりベルクランク８が図中反時計方向に
回動し、バンパ４が図中実線位置まで降下する。 When the bumper device is powered on and the vehicle starts running, the vehicle speed sensor 16 detects the vehicle speed from, for example, the rotation of the wheels and sends a detection signal to the vehicle speed determination circuit 21 of the control unit 20. Vehicle speed determination circuit 21
Then, the vehicle speed V based on this detection signal is a predetermined value V 0
If it is NO (V 0 ≧V), it does not output and waits for the next vehicle speed signal. While this state is repeated, the vehicle speed increases and the detected vehicle speed V becomes larger than the predetermined value V 0 (V 0 <V) YES
S1 and S2 determine this and output it to the ground height sensor drive circuit 22. In response to this output, the ground height sensor drive circuit 22 outputs a drive signal to the ground height sensor 17, and detection of the ground height of the bumper 4 is started in step S3. When the ground height detection is started, the ground height determination circuit 23 receives a signal from the ground height sensor 17 and determines whether the detected value h is higher than the set value h 0 or not (S4). 0 ), the actuator drive circuit 24 outputs an output for a predetermined period of time based on this determination signal, and in step S5, the three-way solenoid valve 15 is operated to connect the actuator 12 to the air reservoir. Then, air is supplied to the actuator 12, the rod 13 moves in the direction of the arrow in the figure, and the bell crank 8 rotates clockwise in the figure against the spring force of the spring 11. With this rotation, the bumper 4 rises via the link 9 and the bumper stay 5 to the position shown by the broken line in the figure, thereby reliably preventing interference with the ground. Also, the ground clearance judgment circuit 23 is NO (h 0 ≦
When the determination h) is made, the actuator 12 is opened to the atmosphere by the three-way solenoid valve 15 based on this determination signal. As a result, the bell crank 8 is rotated counterclockwise in the figure by the spring force of the spring 11, and the bumper 4 is lowered to the position shown by the solid line in the figure.
一方、例えば信号待ち或いは荷の積卸し作業の
ため路上に停車している場合、即ち、車速Ｖが所
定値V0以下の場合には車速判定回路２１におい
てNOと判定され、地上高センサ駆動回路２２の
作動が停止しバンパ装置の昇降動作が停止され、
三方電磁弁１５を介してアクチユエータ１２は大
気開放状態となり、バンパ４は降下した位置に固
定される。尚、三方電磁弁１５とアクチユエータ
１２との間のエア供給路に、所定車速以下で閉作
動する通路開閉弁を設け停車する直前の位置にバ
ンパ４を固定するようにしてもよい。 On the other hand, if the vehicle is stopped on the road, for example, waiting for a traffic signal or for loading/unloading work, that is, if the vehicle speed V is less than the predetermined value V0 , the vehicle speed determination circuit 21 determines NO, and the ground height sensor drive circuit The operation of 22 is stopped and the lifting and lowering operation of the bumper device is stopped.
The actuator 12 is opened to the atmosphere via the three-way solenoid valve 15, and the bumper 4 is fixed in the lowered position. Note that a passage opening/closing valve that closes at a predetermined vehicle speed or less may be provided in the air supply passage between the three-way solenoid valve 15 and the actuator 12, and the bumper 4 may be fixed at a position immediately before the vehicle stops.
このように構成すれば、凹凸の路面、登坂或い
は降坂時に路面との干渉を防止でき車両走行時の
デイパーチヤアングルを確保できると共に、乗用
車等の小型車両が衝突した場合でも、衝突車両の
潜り込みを防げるようにバンパを低い位置に設定
でき、小型車両に対する保護機能を高めることが
できる。然も、停車時等ではバンパの昇降作動が
停止されるため、バンパ近傍の作業者等に対する
予期しないバンパの昇降動作による危険を回避で
き安全性が向上する。 With this configuration, it is possible to prevent interference with the road surface when driving on an uneven road surface, climbing a slope, or descending a slope, ensuring the daypart angle when the vehicle is running, and even in the case of a collision with a small vehicle such as a passenger car, the collision vehicle The bumper can be set at a lower position to prevent people from crawling into the vehicle, increasing its protection against small vehicles. However, since the raising and lowering operation of the bumper is stopped when the vehicle is stopped, it is possible to avoid danger to workers near the bumper due to unexpected raising and lowering of the bumper, thereby improving safety.
尚、車速検出用の車速センサは本実施例のよう
にバンパ装置専用としてもよいが、例えばアンチ
スキツド装置の車速センサ或いはスピードメータ
の車速センサを併用するようにしてもよい。この
場合には、当然のことながら専用の車速センサが
不用となるばかりでなく、アンチスキツド制御装
置或いはスピードメータで処理された車速判定信
号を利用することも可能となり、コントロールユ
ニツトの回路構成を簡略化することができる利点
がある。 The vehicle speed sensor for detecting the vehicle speed may be used exclusively for the bumper device as in this embodiment, but for example, the vehicle speed sensor of the anti-skid device or the vehicle speed sensor of the speedometer may also be used. In this case, not only does a dedicated vehicle speed sensor become unnecessary, but it also becomes possible to use the vehicle speed judgment signal processed by the anti-skid control device or speedometer, simplifying the circuit configuration of the control unit. There are advantages to being able to do so.
〈考案の効果〉
以上述べたように本考案によれば、通常走行時
には路面状態によりバンパ地上高を自動的に調整
しデイパーチヤアングルを確保できるようにした
ので、路面との干渉を確実に防止でき、従つて、
バンパの地上高を十分低く設定でき小型車両の潜
り込み事故を防止できる。然も、停車時において
は、バンパの昇降作動を停止させるので、バンパ
の予期せぬ昇降動作による危険を回避でき荷の積
卸し作業時等の安全性が大幅に向上する。<Effects of the invention> As described above, according to the invention, during normal driving, the bumper ground clearance is automatically adjusted according to the road surface condition to ensure the daypart steering angle, thereby ensuring that there is no interference with the road surface. preventable and therefore
The ground clearance of the bumper can be set sufficiently low to prevent small vehicles from falling under the vehicle. However, when the vehicle is stopped, the raising and lowering operation of the bumper is stopped, so dangers caused by unexpected raising and lowering of the bumper can be avoided, and safety during loading and unloading work, etc., is greatly improved.
第１図は本考案の１実施例を示す要部構成図、
第２図はコントロールユニツトの回路構成を示す
ブロツク回路図、第３図は本実施例の動作を説明
するためのフローチヤートである。
２……フレーム、４……バンパ、１２……アク
チユエータ、１５……三方電磁弁、１６……車速
センサ、１７……地上高センサ、２０……コント
ロールユニツト、２１……車速判定回路、２２…
…地上高センサ駆動回路、２３……地上高判定回
路、２４……アクチユエータ駆動回路。
FIG. 1 is a main part configuration diagram showing one embodiment of the present invention,
FIG. 2 is a block circuit diagram showing the circuit configuration of the control unit, and FIG. 3 is a flow chart for explaining the operation of this embodiment. 2... Frame, 4... Bumper, 12... Actuator, 15... Three-way solenoid valve, 16... Vehicle speed sensor, 17... Ground clearance sensor, 20... Control unit, 21... Vehicle speed determination circuit, 22...
...Ground height sensor drive circuit, 23...Ground height determination circuit, 24...Actuator drive circuit.
Claims (1)
記バンパの地上高を検出する検出手段と、該検出
手段からの検出信号に基づいてバンパを昇降駆動
するバンパ駆動手段とを備えたバンパ昇降制御手
段とを備え、かつ、車速を検出する車速検出手
段、該車速検出手段からの車速信号に基づき車速
が所定値以下か否かを判別する車速判定回路及び
該車速判定回路が所定値より大と判定したとき前
記地上高検出手段へ駆動信号を出力し所定値以下
と判定したとき地上高検出手段へ停止信号を出力
する地上高検出手段の駆動手段からなるバンパ駆
動停止手段を設けて構成したことを特徴とする車
両用バンパ装置。 Bumper elevation control means for mounting a bumper on a vehicle body so that it can be raised and lowered, and comprising: a detection means for detecting the ground height of the bumper; and a bumper drive means for driving the bumper up and down based on a detection signal from the detection means. and a vehicle speed detection means for detecting the vehicle speed, a vehicle speed determination circuit for determining whether the vehicle speed is less than or equal to a predetermined value based on a vehicle speed signal from the vehicle speed detection means, and a vehicle speed determination circuit that determines that the vehicle speed is greater than the predetermined value. A bumper drive stop means comprising a drive means for the ground height detection means outputs a drive signal to the ground height detection means and outputs a stop signal to the ground height detection means when the ground height detection means is determined to be below a predetermined value. Bumper device for vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16327983U JPS6070456U (en) | 1983-10-24 | 1983-10-24 | Vehicle bumper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16327983U JPS6070456U (en) | 1983-10-24 | 1983-10-24 | Vehicle bumper device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070456U JPS6070456U (en) | 1985-05-18 |
| JPS645637Y2 true JPS645637Y2 (en) | 1989-02-13 |
Family
ID=30358320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16327983U Granted JPS6070456U (en) | 1983-10-24 | 1983-10-24 | Vehicle bumper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070456U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980055163A (en) * | 1996-12-28 | 1998-09-25 | 박병재 | Vehicle Collision Safety Device |
| JP2002337637A (en) * | 2001-05-15 | 2002-11-27 | Isuzu Motors Ltd | Under-run protector |
| JP5112967B2 (en) * | 2008-06-24 | 2013-01-09 | 有限会社小田切車体 | Rear bumper for large truck |
| KR102252971B1 (en) * | 2020-08-04 | 2021-05-14 | 권영세 | Vehicle bumper system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223139A (en) * | 1975-08-14 | 1977-02-21 | Nippon Synthetic Chem Ind Co Ltd:The | Sticking agent |
| JPS5815562B2 (en) * | 1979-09-06 | 1983-03-26 | 福井鉄工株式会社 | Antifreeze diffusion device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815562U (en) * | 1981-07-23 | 1983-01-31 | 日産デイ−ゼル工業株式会社 | Rear bumper for trucks |
-
1983
- 1983-10-24 JP JP16327983U patent/JPS6070456U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223139A (en) * | 1975-08-14 | 1977-02-21 | Nippon Synthetic Chem Ind Co Ltd:The | Sticking agent |
| JPS5815562B2 (en) * | 1979-09-06 | 1983-03-26 | 福井鉄工株式会社 | Antifreeze diffusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6070456U (en) | 1985-05-18 |
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