JPH072253Y2 - Switching valve structure in vehicle height adjusting device - Google Patents

Switching valve structure in vehicle height adjusting device

Info

Publication number
JPH072253Y2
JPH072253Y2 JP1986056177U JP5617786U JPH072253Y2 JP H072253 Y2 JPH072253 Y2 JP H072253Y2 JP 1986056177 U JP1986056177 U JP 1986056177U JP 5617786 U JP5617786 U JP 5617786U JP H072253 Y2 JPH072253 Y2 JP H072253Y2
Authority
JP
Japan
Prior art keywords
oil passage
valve
vehicle height
check valve
oil
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 - Lifetime
Application number
JP1986056177U
Other languages
Japanese (ja)
Other versions
JPS62167706U (en
Inventor
正 長谷川
明彦 富樫
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.)
Showa Corp
Original Assignee
Showa Corp
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 Showa Corp filed Critical Showa Corp
Priority to JP1986056177U priority Critical patent/JPH072253Y2/en
Publication of JPS62167706U publication Critical patent/JPS62167706U/ja
Application granted granted Critical
Publication of JPH072253Y2 publication Critical patent/JPH072253Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は自動車の車高調整装置のうち、特に切換弁の構
造に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure of a switching valve in a vehicle height adjusting device of an automobile.

(従来の技術) 従来から自動車の車高を調整するには、モータにてポン
プを駆動し、タンクから作動油を汲み上げてこれをフロ
ント及びリヤの緩衝器の一部に組込んだ油圧ジャッキに
送って車高をアップさせ、また油圧ジャッキからタンク
へ作動油を戻すことで車高ダウンを行っている。
(Prior Art) Conventionally, in order to adjust the vehicle height of an automobile, a pump is driven by a motor, hydraulic oil is pumped up from a tank, and a hydraulic jack incorporated in a part of the front and rear shock absorbers is used. The vehicle height is lowered by sending it to raise the vehicle height and returning hydraulic oil from the hydraulic jack to the tank.

そして斯る車高調整装置を切換え弁によって簡易な構成
とした油圧回路は第4図に示す如くである。
A hydraulic circuit in which such a vehicle height adjusting device has a simple structure with a switching valve is as shown in FIG.

即ち、モータ(100)によって駆動するポンプ(101)か
らタンク(102)へ作動油の汲み上げ用油路(103)を延
出し、このポンプ(101)と油圧ジャッキ(104)とを作
動油の供給油路(105)で接続し、この供給油路(105)
の途中にチェック弁(106)及び油路(105)のオン・オ
フを行なうソレノイド弁(107)を設け、また供給油路
(105)のチェック弁(106)とソレノイド弁(107)と
の中間から戻り油路(108)を分岐し、この戻り油路(1
08)をタンク(102)まで延出するとともに途中に油路
(108)のオン・オフを行なうソレノイド弁(109)を設
け、更に供給油路(105)のチェック弁(106)よりも上
流側と戻り油路(108)のソレノイド弁(109)よりも下
流側をリリーフ弁(110)を備えた油路(111)で接続し
ている。
That is, an oil passage (103) for pumping hydraulic oil is extended from a pump (101) driven by a motor (100) to a tank (102), and this pump (101) and a hydraulic jack (104) are supplied with hydraulic oil. Connect with the oil passage (105), and supply this oil passage (105)
A check valve (106) and a solenoid valve (107) for turning on / off the oil passage (105) are provided in the middle of the operation, and the check valve (106) of the supply oil passage (105) and the solenoid valve (107) are intermediate. From the return oilway (108), branch off from this return oilway (1
08) is extended to the tank (102) and a solenoid valve (109) for turning on / off the oil passage (108) is provided on the way, and further upstream of the check valve (106) of the oil supply passage (105). And the return oil passage (108) downstream of the solenoid valve (109) are connected by an oil passage (111) having a relief valve (110).

そして車高をアップする場合には、モータ(100)にて
ポンプ(101)を駆動し、ソレノイド弁(107)をオン
(開)とすることで作動油を油圧ジャッキ(104)に供
給し、車高をダウンする場合にはソレノイド弁(10
7),(109)をオン(開)とすることで油圧ジャッキ
(104)内の作動油をタンク(102)に戻すようにしてい
る。
When increasing the vehicle height, the motor (100) drives the pump (101) and the solenoid valve (107) is turned on (open) to supply hydraulic oil to the hydraulic jack (104). Solenoid valve (10
The hydraulic oil in the hydraulic jack (104) is returned to the tank (102) by turning on (open) 7) and (109).

(考案が解決しようとする問題点) ところで従来の車高調節装置のうち第4図の点線で囲ん
だ部分は第5図に示すように1つの弁ブロック(112)
に組込まれるか取付けられている。
(Problems to be solved by the invention) By the way, in the conventional vehicle height adjusting device, a portion surrounded by a dotted line in FIG. 4 is a single valve block (112) as shown in FIG.
Incorporated into or installed in.

即ち、弁ブロック(112)内には供給油路(105)の一
部、チェック弁(106)、戻り油路(108)の一部及びリ
リーフ弁(110)を備えた油路(111)が形成されている
が、ソレノイド弁(109)の本体は弁ブロック(112)に
ボルト(113)にて固着されている。
That is, in the valve block (112), an oil passage (111) including a part of the supply oil passage (105), a check valve (106), a part of the return oil passage (108) and a relief valve (110) is provided. Although formed, the body of the solenoid valve (109) is fixed to the valve block (112) with bolts (113).

このため弁ブロック(112)の一部からソレノイド弁(1
09)の本体が突出することとなり、スペース上不利が生
じる。特に弁ブロック(112)はポンプ(101)の下部等
に取付けられる場合が多く、弁ブロック(112)を取付
けるスペースの他にソレノイド弁(109)を収めるスペ
ースも確保しなければならない。
For this reason, the solenoid valve (1
The body of 09) will protrude, resulting in a space disadvantage. In particular, the valve block (112) is often attached to the lower part of the pump (101) or the like, and in addition to the space for installing the valve block (112), a space for accommodating the solenoid valve (109) must be secured.

また、ソレノイド弁(109)は電気によって作動するた
め電力消費の点でも不利があり、且つコストアップにも
つながり、かつ、車高調整装置全体の構成簡易化のネッ
クともなっている。
Further, since the solenoid valve (109) is operated by electricity, it is disadvantageous in terms of power consumption, leads to an increase in cost, and is a bottleneck for simplifying the overall structure of the vehicle height adjusting device.

(問題点を解決するための手段) 上記問題点を解決すべく本考案は作動油の供給油路及び
戻り油路のそれぞれにチェック弁を設け、これら供給油
路のチェック弁よりポンプ側及び戻り油路間にスプール
弁を介設し、車高アップ時にはスプール弁にて戻り油路
のチェック弁を閉じるようにし、更に前記各チェック弁
及びスプール弁を1つの弁ブロック内に組込むようにし
た。
(Means for Solving Problems) In order to solve the above problems, the present invention provides a check valve in each of the hydraulic oil supply oil passage and the return oil passage, and the pump side and the return side of the check valves of these supply oil passages. A spool valve is provided between the oil passages, and when the vehicle height increases, the check valve in the return oil passage is closed by the spool valve, and the check valves and the spool valves are incorporated in one valve block.

(作用) 車高アップ時には供給油路からの作動油の圧力で戻り油
路のチェック弁は閉じられ、車高ダウン時には戻り油路
の圧力でチェック弁は開となり、タンクに油圧ジャッキ
からの作動油は戻される。
(Function) When the vehicle height is increased, the check valve in the return oil passage is closed by the pressure of the hydraulic oil from the supply oil passage, and when the vehicle height is decreased, the check valve is opened by the pressure in the return oil passage, and the tank is operated by the hydraulic jack. The oil is returned.

(実施例) 以下に本考案の実施例を添付図面に基いて説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

第1図は本考案に係る車高調整装置の油圧回路図、第2
図は第1図の点線で囲んだ部分を組込んだ弁ブロックの
断面図、第3図は第2図のA−A線断面図である。
FIG. 1 is a hydraulic circuit diagram of a vehicle height adjusting device according to the present invention, and FIG.
The drawing is a sectional view of a valve block incorporating a portion surrounded by a dotted line in FIG. 1, and FIG. 3 is a sectional view taken along the line AA of FIG.

図中(1)は一方向(正転)に回転するモータであり、
このモータ(1)によりギヤポンプ(2)が駆動され
る。ギヤポンプ(2)はその駆動によりタンク(3)か
ら油路(4)を介して作動油を汲み上げる。またギヤポ
ンプ(2)からは作動油の供給油路(5)が導出され、
この油路(5)の途中にはチェック弁(6)が設けら
れ、このチェック弁(6)よりも下流側において供給油
路(5)は4本の分岐油路(5a)…に分岐し、各分岐油
路(5a)…はソレノイド弁(7)…を介して各ダンパー
(前後各一対で合計4個)の一部をなす油圧ジャッキ
(8)…に接続している。
In the figure, (1) is a motor that rotates in one direction (normal rotation),
The gear pump (2) is driven by this motor (1). The gear pump (2) pumps hydraulic oil from the tank (3) through the oil passage (4) by its drive. Further, a hydraulic oil supply oil passage (5) is derived from the gear pump (2),
A check valve (6) is provided in the middle of the oil passage (5), and the supply oil passage (5) is branched into four branch oil passages (5a) on the downstream side of the check valve (6). , Each of the branch oil passages (5a) are connected to a hydraulic jack (8) forming a part of each damper (a total of four in each of the front and rear pairs) via solenoid valves (7).

また、供給油路(5)のチェック弁(6)よりも下流側
からは戻り油路(9)を分岐し、この戻り油路(9)を
タンク(3)まで延長するとともに、供給油路(5)の
チェック弁(6)よりも上流側と戻り油路(9)との間
にスプール弁(10)を設けている。このスプール弁(1
0)は摺動自在なスプール(11)の大径部によって油室
(12)を画成し、この油室(12)は油路(13)を介して
供給油路(5)のチェック弁(6)よりも上流側に接続
し、またスプール(11)の先端部は戻り油路(9)の中
間に設けたチェック弁(14)のスチールボールに当接し
ている。更に油路(13)よりも上流側でチェック弁(1
4)よりも下流側を油路(15)で接続し、この油路(1
5)にリリーフ弁(16)を設けている。
In addition, the return oil passage (9) is branched from a downstream side of the check valve (6) of the supply oil passage (5), the return oil passage (9) is extended to the tank (3), and the supply oil passage is formed. A spool valve (10) is provided between the return oil passage (9) and the upstream side of the check valve (6) of (5). This spool valve (1
0) defines an oil chamber (12) by a large diameter portion of a slidable spool (11), and the oil chamber (12) is a check valve for an oil passage (5) via an oil passage (13). It is connected to the upstream side of (6), and the tip of the spool (11) is in contact with the steel ball of the check valve (14) provided in the middle of the return oil passage (9). Further, check valve (1
Connect the oil passage (15) on the downstream side of 4), and connect this oil passage (1
The relief valve (16) is provided in 5).

そして、第1図の点線で囲んだ部分、即ち供給油路
(5)の一部、チェック弁(6)、戻り油路(9)の一
部、チェック弁(14)、スプール弁(10)、油路(15)
及びリリーフ弁(16)は第2図に示す如く1つの弁ブロ
ック(17)内に組込まれている。
The portion surrounded by the dotted line in FIG. 1, that is, part of the supply oil passage (5), check valve (6), part of the return oil passage (9), check valve (14), spool valve (10) The oil passage (15)
The relief valve (16) is incorporated in one valve block (17) as shown in FIG.

以上において、車高アップを行う場合にはモータ(1)
によってポンプ(2)を駆動する。すると、タンク
(3)内の作動油は油路(4),(5)を通ってその一
部はスプール弁(10)の油室(12)内に入り、スプール
(11)を第1図中下方に押し下げ、チェック弁(14)の
スチールボールにて戻り油路(9)を閉塞する。そして
この時所定のソレノイド弁(7)をオン(開)としてお
くことで、供給油路(5)内の他の作動油はチェック弁
(6)及び開となったソレノイド弁(7)を通って所定
の油圧ジャッキ(8)内に供給され、車高アップがなさ
れる。尚、車高アップが完了したならばこれを圧力スイ
ッチで感知し、ソレノイド弁(7)を閉じ油路(5a)を
遮断する。
In the above, when increasing the vehicle height, the motor (1)
Drives the pump (2). Then, a part of the hydraulic oil in the tank (3) enters the oil chamber (12) of the spool valve (10) through the oil passages (4) and (5), and the spool (11) is moved to the position shown in FIG. Then, the return oil passage (9) is closed with a steel ball of the check valve (14). At this time, by turning on (opening) a predetermined solenoid valve (7), other hydraulic oil in the oil supply passage (5) passes through the check valve (6) and the opened solenoid valve (7). Is supplied into a predetermined hydraulic jack (8) to raise the vehicle height. When the vehicle height increase is completed, this is detected by the pressure switch, the solenoid valve (7) is closed, and the oil passage (5a) is shut off.

一方、車高をダウンさせる場合には所定のソレノイド弁
(7)を開とする。すると車体の重量によって戻り油路
(9)を介してチェック弁(14)のスチールボールに圧
力が作用し、この圧でスプール弁(10)のスプール(1
1)を第1図中上方へ移動させ、戻り油路(9)が開成
され、油圧ジャッキ(8)内の作動油は戻り油路(9)
を介してタンク(3)内に排出され、車高がダウンす
る。
On the other hand, when lowering the vehicle height, the predetermined solenoid valve (7) is opened. Then, the weight of the vehicle body exerts a pressure on the steel ball of the check valve (14) via the return oil passage (9), and this pressure causes the spool (1) of the spool valve (10) to move.
1) is moved upward in FIG. 1, the return oil passage (9) is opened, and the hydraulic oil in the hydraulic jack (8) is returned to the return oil passage (9).
Is discharged into the tank (3) through the vehicle and the vehicle height is reduced.

(考案の効果) 以上に説明した如く本考案によれば、油圧ジャッキから
の作動油をタンク内に戻す戻り油路に設けたチェック弁
を開閉する弁をスプール弁とし、このスプール弁を作動
油の供給油路のチェック弁、戻り油路のチェック弁とと
もに1つの弁のブロック内に組込むようにしたので、従
来の如くソレノイド弁が弁ブロックから突出することが
なく、車高調整装置全体のコンパクト化が図れ、また使
用するソレノイド弁の数を削減できるので、装置全体と
しての構成の簡素化に加えてコストダウンを達成するこ
とができる。
(Effect of the Invention) As described above, according to the present invention, the valve for opening and closing the check valve provided in the return oil passage for returning the hydraulic oil from the hydraulic jack to the tank is a spool valve, and this spool valve is used as the hydraulic oil. Since the check valve for the supply oil passage and the check valve for the return oil passage are installed in the block of one valve, the solenoid valve does not protrude from the valve block as in the conventional case, and the overall vehicle height adjusting device is compact. Since the number of solenoid valves used can be reduced and the number of solenoid valves used can be reduced, cost reduction can be achieved in addition to simplification of the configuration of the entire apparatus.

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

第1図は本考案に係る弁構造を適用した車高調整装置の
油圧回路図、第2図は弁ブロックの断面図、第3図は第
2図のA−A線断面図、第4図は従来の車高調整装置の
油圧回路図、第5図は従来の弁ブロックの断面図であ
る。 尚、図面中(1)はモータ、(2)はポンプ、(3)は
タンク、(5)は供給油路、(6),(14)はチェック
弁、(8)は油圧ジャッキ、(9)は戻り油路、(10)
はスプール弁である。
1 is a hydraulic circuit diagram of a vehicle height adjusting device to which a valve structure according to the present invention is applied, FIG. 2 is a sectional view of a valve block, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. Is a hydraulic circuit diagram of a conventional vehicle height adjusting device, and FIG. 5 is a sectional view of a conventional valve block. In the drawings, (1) is a motor, (2) is a pump, (3) is a tank, (5) is a supply oil passage, (6) and (14) are check valves, (8) is a hydraulic jack, and (9). ) Is the return oil passage, (10)
Is a spool valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】タンク内の作動油をポンプによって汲み上
げ、この汲み上げた作動油をチェック弁を備えた供給油
路を介して油圧ジャッキに供給することで車高アップを
行い、油圧ジャッキ内の作動油をチェック弁を備えた戻
り油路を介してタンク内に排出することで車高ダウンを
行うようにした車高調整装置において、前記供給油路の
チェック弁よりポンプ側と戻り油路間にはスプール弁が
設けられ、このスプール弁にはスプールにて画成され且
つ供給油路に連通する油室が形成され、また前記スプー
ル弁の油室に作動油が供給された際に戻り油路のチェッ
ク弁を閉じるものとし、更に前記供給油路のチェック
弁、戻り油路のチェック弁及びスプール弁は1つの弁ブ
ロック内に組込まれていることを特徴とする車高調整装
置における切換弁構造。
1. A vehicle height is increased by pumping up hydraulic oil in a tank by a pump and supplying the hydraulic oil thus pumped to a hydraulic jack through a supply oil passage equipped with a check valve to operate in the hydraulic jack. In a vehicle height adjusting device configured to perform vehicle height reduction by discharging oil into a tank through a return oil passage equipped with a check valve, between the pump side and the return oil passage from the check valve of the supply oil passage. Is provided with a spool valve, an oil chamber defined by the spool and communicating with the supply oil passage is formed in the spool valve, and a return oil passage is provided when hydraulic oil is supplied to the oil chamber of the spool valve. The check valve of the control valve is closed, and the check valve of the supply oil passage, the check valve of the return oil passage, and the spool valve are incorporated in one valve block. .
JP1986056177U 1986-04-15 1986-04-15 Switching valve structure in vehicle height adjusting device Expired - Lifetime JPH072253Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986056177U JPH072253Y2 (en) 1986-04-15 1986-04-15 Switching valve structure in vehicle height adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986056177U JPH072253Y2 (en) 1986-04-15 1986-04-15 Switching valve structure in vehicle height adjusting device

Publications (2)

Publication Number Publication Date
JPS62167706U JPS62167706U (en) 1987-10-24
JPH072253Y2 true JPH072253Y2 (en) 1995-01-25

Family

ID=30884757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986056177U Expired - Lifetime JPH072253Y2 (en) 1986-04-15 1986-04-15 Switching valve structure in vehicle height adjusting device

Country Status (1)

Country Link
JP (1) JPH072253Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101537991B (en) * 2009-04-09 2012-01-04 温岭市鑫磊空压机有限公司 Dual-use hydraulic electric jack
DE102011121753A1 (en) * 2011-12-21 2013-06-27 Wabco Gmbh Air suspension system of a motor vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066512U (en) * 1983-10-14 1985-05-11 富士重工業株式会社 Hydraulic pump unit structure of automotive hydraulic vehicle height adjustment system

Also Published As

Publication number Publication date
JPS62167706U (en) 1987-10-24

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