JP2580641Y2 - hydraulic unit - Google Patents
hydraulic unitInfo
- Publication number
- JP2580641Y2 JP2580641Y2 JP2814692U JP2814692U JP2580641Y2 JP 2580641 Y2 JP2580641 Y2 JP 2580641Y2 JP 2814692 U JP2814692 U JP 2814692U JP 2814692 U JP2814692 U JP 2814692U JP 2580641 Y2 JP2580641 Y2 JP 2580641Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- oil passage
- manifold
- seal member
- joint member
- 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 - Fee Related
Links
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、作動油を貯蔵したタン
クに油圧ポンプ及びこれを駆動する電動機を設置した油
圧ユニットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic unit in which a hydraulic pump and a motor for driving the hydraulic pump are installed in a tank storing hydraulic oil.
【０００２】[0002]
【従来の技術】このような油圧ユニットでは、一般に、
タンクの上板上に電動機をはじめとして各種の機器を載
置しアクチュエータへ配管を導くようにしている。そし
て、例えば特装車に装着する油圧ユニットでは、雨天の
走行時や洗車の際等に水が電動機等にかからないよう、
タンクの上板の上を覆うカバーを設ける必要があり、こ
のため、油圧ポンプからの吐出油、あるいはタンクへの
戻り油のための配管は、カバーを挿通するよう設けると
共に、このカバー挿通部をシールする必要があった。2. Description of the Related Art In such a hydraulic unit, generally,
Various devices including an electric motor are mounted on the upper plate of the tank, and the piping is guided to the actuator. And, for example, in a hydraulic unit mounted on a specially equipped vehicle, so that water does not splash on the electric motor etc. when traveling in the rain or when washing the car, etc.
It is necessary to provide a cover that covers the upper plate of the tank.Therefore, pipes for oil discharged from the hydraulic pump or oil returned to the tank are provided so that the cover is inserted, and this cover insertion part is Needed to be sealed.
【０００３】本考案者らは、このようなカバー挿通部の
シール構造として、本考案の以前に図６の如き構成を採
用した。すなわち、タンク１００には、その上板１０１
の上を覆うカバー１０２が取付けられ、カバー１０２で
覆われるよう上板１０１上にはマニホールド１０３が設
置されている。このマニホールド１０３の油路１０４の
開口部には、カバー１０２の引出穴１０５を挿通した中
継管１０６がその内端で螺着され、中継管１０６の外端
に適宜な継手を介し鋼管あるいはゴムホール等が接続さ
れることで、油路１０４がカバー１０２外へと配管接続
されるよう設けている。そして、１０７はカバー１０２
の引出穴１０５の内縁に設置したシール部材で、その内
周を自己の弾性力で中継管１０６の外周に圧接して中継
管１０６とシール部材１０７との間をシール作用してい
る。Prior to the present invention, the present inventors adopted a configuration as shown in FIG. 6 as a seal structure of such a cover insertion portion. That is, the tank 100 has its upper plate 101
A cover 102 is provided to cover the upper surface of the upper plate 101, and a manifold 103 is provided on the upper plate 101 so as to be covered with the cover 102. A relay pipe 106 inserted through an outlet hole 105 of the cover 102 is screwed into the opening of the oil passage 104 of the manifold 103 at an inner end thereof, and a steel pipe or a rubber hole is connected to an outer end of the relay pipe 106 through an appropriate joint. The connection is provided such that the oil passage 104 is connected to the outside of the cover 102 by piping. And 107 is the cover 102
A sealing member provided at the inner edge of the drawing hole 105, the inner circumference thereof is pressed against the outer circumference of the relay pipe 106 by its own elastic force to seal the gap between the relay pipe 106 and the seal member 107.
【０００４】[0004]
【考案が解決しようとする課題】ところがこの構成で
は、引出穴１０５と油路１０４の開口との間を同心に整
合させる必要があり、板金細工によるカバー１０２に良
好な同心度を得るに十分な程精度よく引出穴１０５を設
けることは困難であって、この結果中継管１０６外周に
は不均一な状態でシール部材１０７の内周が圧接して、
満足のゆくシール作用が得られない問題点があった。本
考案は、カバーの引出穴とマニホールドの油路の開口と
の間に高い同心度を要さずに良好にシール作用できるよ
う設けて、かかる問題点を解決した油圧ユニットを提供
しようとするものである。In this configuration, however, it is necessary to adjust the concentricity between the draw-out hole 105 and the opening of the oil passage 104, which is sufficient to obtain a good concentricity with the cover 102 formed by sheet metalwork. It is difficult to form the extraction hole 105 with high accuracy, and as a result, the inner periphery of the seal member 107 is pressed against the outer periphery of the relay tube 106 in an uneven state,
There was a problem that a satisfactory sealing action could not be obtained. The present invention is intended to provide a hydraulic unit that solves such a problem by providing a good sealing function without requiring high concentricity between a drawer hole of a cover and an opening of an oil passage of a manifold. It is.
【０００５】[0005]
【課題を解決するための手段】このため本考案の油圧ユ
ニットは、上部開口を塞ぐ上板を有し内部に作動油を貯
蔵可能に形成したタンクにはその上板の上を覆うカバー
を取付け、カバーで覆われるよう上板には油圧ポンプを
駆動する電動機と内部に油路を形成したマニホールドを
設置し、このマニホールドの油路にはカバーの引出穴を
挿通してカバーの内から外へ導かれる配管を接続する油
圧ユニットにおいて、挿通穴を貫通した筒状で軸方向に
隔置される二つの環状フランジ片を外周に設けてこの環
状フランジ片の間にカバーの引出穴周縁を挟持したシー
ル部材を備え、マニホールドは引出穴を設けるカバーの
内面に向き合った一側面に油路を開口すると共に、この
油路の開口部にめねじを設けて接続部を形成し、シール
部材の挿通穴を挿通してマニホールドの接続部に螺着さ
れる継手部材を備え、継手部材にはカバー外に位置して
挿通穴より大径のつば状に拡径した回動操作部を設け、
シール部材はその外側端面を継手部材における回動操作
部の内側端面に、また内側端面をマニホールドの油路が
開口した一側面に圧接して設置している。Therefore, the hydraulic unit according to the present invention has an upper plate for closing the upper opening, and a cover for covering the upper plate is attached to the tank formed therein so as to be able to store hydraulic oil. An electric motor that drives the hydraulic pump and a manifold with an oil passage inside are installed on the upper plate so that it is covered by the cover, and the oil passage of this manifold is inserted from the inside of the cover through the drawing hole of the cover to the outside. In the hydraulic unit that connects the pipes to be guided, two annular flange pieces that are cylindrical and are axially spaced from each other and penetrate through the insertion hole are provided on the outer periphery, and the peripheral edge of the drawing hole of the cover is sandwiched between the annular flange pieces. A seal member is provided, and the manifold has an oil passage opened on one side facing the inner surface of the cover in which a draw-out hole is provided, and a female screw is provided in the opening of the oil passage to form a connection portion, and the insertion hole of the seal member is provided. Insert And comprises a joint member which is screwed to the connection portion of the manifold, the joint member is provided with pivot operation part which is expanded to a larger diameter of the flange-like from the insertion hole is positioned outside the cover,
The seal member is installed with its outer end face pressed against the inner end face of the rotary operating portion of the joint member and its inner end face pressed against one side of the manifold where the oil passage opens.
【０００６】[0006]
【作用】このように構成した本考案によると、継手部材
の螺着によってシール部材は、継手部材の回動操作部の
内側端面とマニホールドの一側面との間ではさみ込まれ
る。そしてシール部材は、継手部材の回動操作部の内側
端面に圧接する外側端面あるいは、マニホールドの一端
面に圧接する内側端面により挿通穴に挿通した継手部材
外周を経てカバー内外を通じる経路をシールする。この
ようにシール部材は、その内周によらず端面でシールを
行なうので、引出穴の位置がマニホールドの油路の開口
に対し多少ずれていても良好にシール作用できる。According to the present invention constructed as described above, the seal member is inserted between the inner end face of the rotary operation portion of the joint member and one side face of the manifold by screwing the joint member. The seal member seals a path passing through the inside and outside of the cover through the outer periphery of the joint member inserted into the insertion hole by the outer end surface pressed against the inner end surface of the rotary operation portion of the joint member or the inner end surface pressed against the one end surface of the manifold. . As described above, since the sealing member seals at the end face irrespective of the inner periphery thereof, even if the position of the drawing hole is slightly shifted with respect to the opening of the oil passage of the manifold, a good sealing effect can be obtained.
【０００７】[0007]
【実施例】以下本考案の実施例を図面により説明する。
図１から図４の第１実施例において、１は作動油を内部
に貯蔵可能とした直方体状のタンクで、上部開口を塞ぐ
よう上板２を有している。３は上板２の上部を覆う直方
体状のカバーで、ボルト４により上板２に取付けられて
いる。５は上板２に取付けられた基板であり、油圧ポン
プ６をタンク１内に、またこれを駆動する電動機７をタ
ンク１外にして取付けており、さらに、電磁切換弁８と
モジュラ弁９を積層設置した分配基板１０が基板５に取
付けられており、これら各基板５、１０、電動機７及び
各弁８、９はいずれもカバー３により覆われている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
In the first embodiment shown in FIGS. 1 to 4, reference numeral 1 denotes a rectangular parallelepiped tank capable of storing hydraulic oil therein, and has an upper plate 2 for closing an upper opening. Reference numeral 3 denotes a rectangular parallelepiped cover that covers an upper portion of the upper plate 2, and is attached to the upper plate 2 by bolts 4. Reference numeral 5 denotes a substrate mounted on the upper plate 2, wherein the hydraulic pump 6 is mounted inside the tank 1, the electric motor 7 for driving the hydraulic pump 6 is mounted outside the tank 1, and the electromagnetic switching valve 8 and the modular valve 9 are mounted. The distribution boards 10 stacked and mounted are mounted on the board 5, and the boards 5, 10, the motor 7, and the valves 8, 9 are all covered by the cover 3.
【０００８】基板５と分配基板１０は一連のマニホール
ド１１を形成し、図４の油圧回路図で示す如く、基板５
には油圧ポンプ６からの吐出油路Ｐが設けられると共に
リリーフ弁１２が内蔵され、この吐出油路Ｐは、さら
に、分配基板１０及びモジュラ弁９をへて電磁切換弁８
に接続している。そして、分配基板１０及びモジュラ弁
９には、電磁切換弁８に接続した戻り油路Ｒと、二つの
出力油路Ａ、Ｂが設けられ、モジュラ弁９は、出力油路
Ａに介在するパイロット操作逆止め弁１３を内蔵してい
る。The board 5 and the distribution board 10 form a series of manifolds 11, and as shown in the hydraulic circuit diagram of FIG.
Is provided with a discharge oil passage P from the hydraulic pump 6 and has a built-in relief valve 12. The discharge oil passage P further passes through the distribution board 10 and the modular valve 9 to the electromagnetic switching valve 8.
Connected to The distribution board 10 and the modular valve 9 are provided with a return oil passage R connected to the electromagnetic switching valve 8 and two output oil passages A and B. The modular valve 9 is provided with a pilot oil interposed in the output oil passage A. An operation check valve 13 is incorporated.
【０００９】カバー３の背壁３Ａには二つの引出穴１４
が形成され（図１、図２では一方の引出穴のみを示
す）、出力油路Ａ、Ｂは、この背壁３Ａの内面に平行状
に向き合う分配基板１０の一側面１０Ａに、各引出穴１
４に対向してそれぞれ開口している。各出力油路Ａ、Ｂ
の一側面１０Ａにおける開口部にはめねじを設けて接続
部１５が形成され、この接続部１５には、継手部材１６
が引出穴１４を通してその内側おねじ部１６Ａにより螺
着されている。各継手部材１６は、カバー３外の外側お
ねじ部１６Ｂに接続する各種の継手（図示せず）を介し
図示しないアクチュエータへの鋼管あるいはゴムホース
等が接続されるものである。The back wall 3A of the cover 3 has two drawer holes 14
(Only one of the drawing holes is shown in FIGS. 1 and 2), and the output oil passages A and B are provided on one side surface 10A of the distribution board 10 facing the inner surface of the back wall 3A in parallel. 1
4 are open. Each output oil passage A, B
A connection part 15 is formed by providing an internal thread in the opening on one side surface 10A.
Is screwed through the extraction hole 14 by the internal male thread 16A. Each joint member 16 is connected to a steel pipe or a rubber hose or the like to an actuator (not shown) via various joints (not shown) connected to the external male screw portion 16B outside the cover 3.
【００１０】継手部材１６は、つば状に拡径して外周面
を工具係合用の六角形状とした回動操作部１６Ｃが、そ
の中間部に形成されると共に、通路穴１６Ｅが貫通して
いる。１７はシール部材で、天然ゴム、合成ゴム等の弾
性体で形成されて挿通穴１７Ａを有した筒状である（図
３参照）。そしてシール部材１７はその外周に溝部１７
Ｂを介して軸方向に隔置される二つの環状フランジ部材
１７Ｃ、１７Ｄを有し、挿通穴１７Ａは、継手部材１６
の回動操作部１６Ｃより小径としている。このシール部
材１７は、溝部１７Ｂの底部周面を引出穴１４の内周面
に圧接すると共に、環状フランジ片１７Ｃ、１７Ｄの間
にカバー３の背壁３Ａの引出穴１４周縁を挟持して、内
側端面１７Ｅが分配基板１０の一側面１０Ａに圧接する
よう設置されている。継手部材１６は、回動操作部１６
Ｃをカバー３外に位置して挿通穴１７Ａを挿通し前述の
如く分配基盤１０の接続部１５に螺着されている。そし
て継手部材１６は、この螺着によって、分配基盤１０の
一側面１０Ａとの間でシール部材１７をはさみ込むよ
う、回動操作部１６Ｃの内側端面１６Ｄをシール部材１
７の外側端面１７Ｆに圧接し、シール部材１７はこれに
より軸方向に圧縮されて環状フランジ片１７Ｃ、１７Ｄ
は引出穴１４周縁の背壁３Ａの内、外面に圧接されてい
る。The joint member 16 has a rotating operation portion 16C whose diameter is increased in a brim shape and whose outer peripheral surface has a hexagonal shape for tool engagement, formed at an intermediate portion thereof, and a passage hole 16E penetrates. . Reference numeral 17 denotes a sealing member which is formed of an elastic body such as natural rubber or synthetic rubber and has a cylindrical shape having an insertion hole 17A (see FIG. 3). The seal member 17 has a groove 17 on its outer periphery.
B has two annular flange members 17C and 17D axially separated from each other by a through hole B.
Is smaller in diameter than the rotary operation section 16C. The seal member 17 presses the bottom peripheral surface of the groove portion 17B against the inner peripheral surface of the extraction hole 14, and clamps the extraction hole 14 peripheral edge of the back wall 3A of the cover 3 between the annular flange pieces 17C and 17D. The inner end face 17 </ b> E is provided so as to be pressed against one side face 10 </ b> A of the distribution board 10. The joint member 16 includes a rotating operation unit 16.
C is located outside the cover 3 and is inserted through the insertion hole 17A and screwed to the connection portion 15 of the distribution base 10 as described above. Then, the joint member 16 seals the inner end face 16D of the rotary operation section 16C with the seal member 1 so that the seal member 17 is sandwiched between the joint member 16 and one side face 10A of the distribution base 10.
7 is pressed against the outer end face 17F, whereby the sealing member 17 is compressed in the axial direction, thereby forming the annular flange pieces 17C, 17D.
Are pressed against the outer surface of the inside of the back wall 3A on the periphery of the drawer hole 14.
【００１１】この構成における作動を説明する。図示し
ないアクチュエータへ、継手部材１６の外側おねじ部１
６Ｂを用いて鋼管やゴムホース等を接続することによ
り、アクチュエータとマニホールド１１の供給油路Ａ、
Ｂとの間の配管接続を完了後、電動機７により油圧ポン
プ６を駆動して、電磁切換弁８を図４の中立位置から左
右どちらかの作動位置へ切換えると、出力油路Ａ、Ｂの
一方から吐出油路Ｐを経た油圧ポンプ６の吐出油が供給
され、また出力油路Ａ、Ｂの他方から戻り油路Ｒを経て
戻り油がタンク１へ戻されてアクチュエータが作動す
る。また、電磁切換弁８を中立位置に復帰すれば吐出油
路Ｐが遮断され、パイロット操作逆止め弁１３が閉止さ
れてアクチュエータを停止保持する。The operation in this configuration will be described. To the actuator (not shown), the outer thread portion 1 of the joint member 16
By connecting a steel pipe, a rubber hose, or the like using 6B, the supply oil passage A between the actuator and the manifold 11
After completing the pipe connection with B, the electric motor 7 drives the hydraulic pump 6 to switch the electromagnetic switching valve 8 from the neutral position in FIG. The discharge oil of the hydraulic pump 6 is supplied from one side via the discharge oil path P, and the return oil is returned from the other one of the output oil paths A and B via the return oil path R to the tank 1 to operate the actuator. When the electromagnetic switching valve 8 is returned to the neutral position, the discharge oil passage P is shut off, the pilot check valve 13 is closed, and the actuator is stopped and held.
【００１２】かかる油圧ユニットで、継手部材１６のカ
バー３の挿通部分においては、シール部材１７は両環状
フランジ片１７Ｃ、１７Ｄが、カバー３の背壁３Ａの引
出穴１４周縁に圧接し、また溝部１７Ｂ底部周面が引出
穴１４の内周面に圧接して、これにより引出穴１４とシ
ール部材１７との間がシールされ、また、シール部材
は、その外側端面１７Ｆが継手部材１６における回動操
作部１６Ｃの内側端面１６Ｄに圧接し、内側端面１７Ｅ
が分配基盤１０の一側面１０Ａに圧接していて、これら
各圧接個所で挿通穴１７Ａに挿通した継手部材１６の外
周を経てカバー３の内外を通じる経路がシールされるた
め、カバー３の外部から内部への水の進入が防止され
る。In such a hydraulic unit, in the portion of the joint member 16 where the cover 3 is inserted, the seal member 17 has the two annular flange pieces 17C and 17D pressed against the peripheral edge of the drawing hole 14 of the back wall 3A of the cover 3 and the groove portion. The bottom peripheral surface of 17B presses against the inner peripheral surface of the extraction hole 14 to seal the space between the extraction hole 14 and the seal member 17, and the outer end surface 17F of the seal member is rotated at the joint member 16 by rotation. The inner end face 17D of the operation section 16C is pressed against the inner end face 16D.
Is pressed against one side surface 10A of the distribution base 10, and at each of these pressed positions, a path passing through the inside and outside of the cover 3 through the outer periphery of the joint member 16 inserted into the insertion hole 17A is sealed. Water is prevented from entering the interior.
【００１３】そしてシール部材１７と継手部材１６との
間のシールを、シール部材１７の各端面１７Ｅ、１７Ｆ
で行なうので、引出穴１４と分配基板１０の一側面１０
Ａにおける出力油路Ａ、Ｂの開口との間の同心度が多少
不正確であっても良好にシール作用でき、元来がこのよ
うな同心度の精度を高くすることなど困難な板金細工の
カバー３にあって良好なシール作用が得られる。また、
シール部材１７は、内側端面１７Ｅが圧接する分配基板
１０の一側面１０Ａがストッパとなるため、たとえ背壁
３Ａが薄くても、継手部材１６を螺着したとき、背壁３
Ａを徒らに大きく変形させる如き内方への移動が抑えら
れ、このため、この一側面１０Ａと回動操作部１６Ｃの
内側端面１６Ｄ間でシール部材１７は圧縮されて、内
側、外側端面１７Ｅ、１７Ｆでのシール作用を良好に発
輝できる。また、継手部材１６は、ニップル等の汎用の
継手を利用すれば廉価に入手でき、さらに回動操作部１
６Ｃをカバー３外に置いたので、マニホールド１１の接
続部１５への螺着作業を容易に行なうことができる。A seal between the seal member 17 and the joint member 16 is formed by each end face 17E, 17F of the seal member 17.
So that the extraction hole 14 and one side 10 of the distribution board 10
Even if the concentricity between the output oil passages A and B at A is somewhat inaccurate, a good sealing effect can be obtained, and it is originally difficult to increase the accuracy of such concentricity. Good sealing action can be obtained in the cover 3. Also,
Since the sealing member 17 has a stopper on one side surface 10A of the distribution board 10 against which the inner end surface 17E is pressed, even when the back wall 3A is thin, the back wall 3
A is suppressed from moving inward so as to greatly deform A, so that the seal member 17 is compressed between the one side surface 10A and the inner end surface 16D of the rotary operation portion 16C, and the inner and outer end surfaces 17E , 17F can be satisfactorily emitted. The joint member 16 can be obtained at a low cost by using a general-purpose joint such as a nipple.
Since the 6C is placed outside the cover 3, the operation of screwing the manifold 11 to the connection portion 15 can be easily performed.
【００１４】また、図５は第２実施例の要部を示し、シ
ール部材１７の外側端面１７Ｆが、継手部材１６の回動
操作部１６Ｃにおける内側端面１６Ｄに圧接してシール
作用を得る環状凸起１７Ｇを有しており、第１実施例と
同様の作用効果が得られる。また、油圧ポンプは必要に
応じ電動機と共に上板の上に設けてもよい。FIG. 5 shows a main part of the second embodiment, in which the outer end face 17F of the seal member 17 is pressed against the inner end face 16D of the rotary operation part 16C of the joint member 16 to obtain a sealing effect. The first embodiment has the same effect as that of the first embodiment. Further, the hydraulic pump may be provided on the upper plate together with the electric motor if necessary.
【００１５】[0015]
【考案の効果】このように本考案では、シール部材の内
側あるいは外側端面により、シール部材の挿通穴を挿通
する継手部材外周を経てカバー内外を通じる経路のシー
ル作用をはかるので、カバーの引出穴とマニホールドの
一側面における油路の開口との間の高い同心度を不要に
でき、元来高い同心度を得ることが困難なカバーにあっ
て良好なシール作用が得られる。また、シール部材の内
側端面はマニホールドの一側面に圧接するから、継手部
材の螺着の際、カバーの引出穴を設けた部材が薄くても
この部材を徒らに大きく変形させることは防止される。
さらにまた、継手部材は、汎用の継手を利用すれば廉価
に入手できると共に、回動操作部をカバー外に位置させ
るので、マニホールドの接続部への螺着作業を容易にす
ることができる。As described above, according to the present invention, the inner or outer end face of the seal member seals the path passing through the inside and outside of the cover through the outer periphery of the joint member inserted through the insertion hole of the seal member. A high concentricity between the oil and the opening of the oil passage on one side of the manifold can be dispensed with, and a good sealing effect can be obtained in a cover where it is originally difficult to obtain a high concentricity. Also, since the inner end surface of the seal member is pressed against one side surface of the manifold, it is possible to prevent the member from being greatly deformed when the joint member is screwed, even if the member provided with the draw-out hole of the cover is thin. You.
Furthermore, the joint member can be obtained at a low cost by using a general-purpose joint, and since the rotating operation portion is located outside the cover, the operation of screwing the manifold to the connection portion can be facilitated.
【図１】本考案の第１実施例における一部を破断した左
側面図。FIG. 1 is a left side view with a part broken away in a first embodiment of the present invention.
【図２】本考案の第１実施例における要部拡大破断図。FIG. 2 is an enlarged cutaway view of a main part of the first embodiment of the present invention.
【図３】本考案の第１実施例におけるシール部材の外観
図。FIG. 3 is an external view of the seal member according to the first embodiment of the present invention.
【図４】本考案の第１実施例における油圧回路図。FIG. 4 is a hydraulic circuit diagram of the first embodiment of the present invention.
【図５】本考案の第２実施例における要部拡大破断図。FIG. 5 is an enlarged cutaway view of a main part of the second embodiment of the present invention.
【図６】従来例を示す要部拡大破断図。FIG. 6 is an enlarged cutaway view of a main part showing a conventional example.
１タンク ２上板 ３カバー ６油圧ポンプ ７電動機 １０Ａマニホールドの一側面 １１マニホールド １４引出穴 １５接続部 １６継手部材 １６Ｃ回動操作部 １６Ｄ内側端面 １７シール部材 １７Ａ挿通穴 １７Ｃ、１７Ｄ環状フランジ片 １７Ｅ内側端面 １７Ｆ外側端面 Ａ、Ｂ油路 1 Tank 2 Upper plate 3 Cover 6 Hydraulic pump 7 Electric motor 10 One side of 11A manifold 11 Manifold 14 Extraction hole 15 Connection part 16 Joint member 16C rotation operation part 16D inner end face 17 Seal member 17A insertion hole 17C, 17D annular flange piece 17E inner End face 17F Outer end face A, B oil passage
Claims (1)
を貯蔵可能に形成したタンクにはその上板の上を覆うカ
バーを取付け、カバーで覆われるよう上板には油圧ポン
プを駆動する電動機と内部に油路を形成したマニホール
ドを設置し、このマニホールドの油路にはカバーの引出
穴を挿通してカバーの内から外へ導かれる配管を接続す
る油圧ユニットにおいて、挿通穴を貫通した筒状で軸方
向に隔置される二つの環状フランジ片を外周に設けてこ
の環状フランジ片の間にカバーの引出穴周縁を挟持した
シール部材を備え、マニホールドは引出穴を設けるカバ
ーの内面に向き合った一側面に油路を開口すると共に、
この油路の開口部にめねじを設けて接続部を形成し、シ
ール部材の挿通穴を挿通してマニホールドの接続部に螺
着される継手部材を備え、継手部材にはカバー外に位置
して挿通穴より大径のつば状に拡径した回動操作部を設
け、シール部材はその外側端面を継手部材における回動
操作部の内側端面に、また内側端面をマニホールドの油
路が開口した一側面に圧接して設置して成る油圧ユニッ
ト。1. A tank having an upper plate for closing an upper opening and having a tank capable of storing hydraulic oil therein is provided with a cover for covering the upper plate, and a hydraulic pump is provided on the upper plate so as to be covered with the cover. Install a manifold with an oil passage formed inside the motor to be driven, and in the oil passage of this manifold, insert the insertion hole in the hydraulic unit that connects the pipe that is drawn out from the inside of the cover through the drawing hole of the cover. A seal member is provided around the outer periphery of two annular flange pieces that are penetrated and axially spaced apart from each other, and a peripheral edge of a drawer hole of the cover is sandwiched between the annular flange pieces. While opening an oil passage on one side facing the inner surface,
A female thread is provided at the opening of the oil passage to form a connection part, a joint member is inserted through the insertion hole of the seal member and screwed to the connection part of the manifold, and the joint member is located outside the cover. The rotary member is provided with a rotating operation part whose diameter is enlarged to be larger than the insertion hole, and the outer end surface of the seal member is opened to the inner end surface of the rotating operation part of the joint member, and the inner end surface is opened to the oil passage of the manifold. A hydraulic unit that is installed by pressing against one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2814692U JP2580641Y2 (en) | 1992-03-31 | 1992-03-31 | hydraulic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2814692U JP2580641Y2 (en) | 1992-03-31 | 1992-03-31 | hydraulic unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0579002U JPH0579002U (en) | 1993-10-26 |
| JP2580641Y2 true JP2580641Y2 (en) | 1998-09-10 |
Family
ID=12240626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2814692U Expired - Fee Related JP2580641Y2 (en) | 1992-03-31 | 1992-03-31 | hydraulic unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580641Y2 (en) |
-
1992
- 1992-03-31 JP JP2814692U patent/JP2580641Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0579002U (en) | 1993-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |