JPS61197095U - - Google Patents
Info
- Publication number
- JPS61197095U JPS61197095U JP8045085U JP8045085U JPS61197095U JP S61197095 U JPS61197095 U JP S61197095U JP 8045085 U JP8045085 U JP 8045085U JP 8045085 U JP8045085 U JP 8045085U JP S61197095 U JPS61197095 U JP S61197095U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- hydraulic chamber
- lift
- slidably housed
- hydraulic
- 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.)
- Pending
Links
- 239000000945 filler Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Check Valves (AREA)
Description
第１図は本考案二段式リフトの一実施例を示す
一部切欠側面図、第２図は同リフトの平面図であ
る。
１〜外側筒体、１ａ〜底面、２〜注油口、３〜
メタルヘツド、３ａ〜シリンダ部、４〜ビス、５
〜第一プランジヤ、５ａ〜シリンダ部、５ｂ〜底
部、５ｃ〜段部、６〜第二プランジヤ、７〜流通
孔、８〜チエツクバルブ、８ａ〜軸、８ｂ〜開閉
弁、８ｃ〜スプリング、９，１０〜油圧室、１１
，１１′〜通路。
FIG. 1 is a partially cutaway side view showing an embodiment of the two-stage lift of the present invention, and FIG. 2 is a plan view of the same lift. 1~Outer cylinder body, 1a~Bottom surface, 2~Oil filler port, 3~
Metal head, 3a ~ cylinder part, 4 ~ screw, 5
~first plunger, 5a~cylinder part, 5b~bottom, 5c~step part, 6~second plunger, 7~flow hole, 8~check valve, 8a~shaft, 8b~opening/closing valve, 8c~spring, 9, 10 ~ Hydraulic chamber, 11
, 11'~Aisle.
Claims (1)
収容すると共に、該第一プランジヤ５内に第二プ
ランジヤ６を摺動自在に収容してなる二段式リフ
トにおいて、 該第一プランジヤ５に設けた注油口２に連通す
る油圧室９と第二プランジヤ６の油圧室１０との
間に流通孔７を設けると共に、両油圧室内の圧力
差（油圧室９＞油圧室１０）と第一プランジヤ５
の最下降時にのみ開放される常閉型のチエツクバ
ルブ８を、前記流通孔７に対向配置したことを特
徴とする二段式リフト。[Claims for Utility Model Registration] A two-stage system in which a first plunger 5 is slidably housed within the outer cylinder 1, and a second plunger 6 is slidably housed within the first plunger 5. In the lift, a communication hole 7 is provided between the hydraulic chamber 9 communicating with the oil filler port 2 provided in the first plunger 5 and the hydraulic chamber 10 of the second plunger 6, and a pressure difference between the two hydraulic chambers (hydraulic chamber 9 >Hydraulic chamber 10) and first plunger 5
A two-stage lift characterized in that a normally closed check valve 8, which is opened only when the lift is lowered to its lowest position, is disposed opposite to the flow hole 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8045085U JPS61197095U (en) | 1985-05-29 | 1985-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8045085U JPS61197095U (en) | 1985-05-29 | 1985-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61197095U true JPS61197095U (en) | 1986-12-09 |
Family
ID=30626309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8045085U Pending JPS61197095U (en) | 1985-05-29 | 1985-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61197095U (en) |
-
1985
- 1985-05-29 JP JP8045085U patent/JPS61197095U/ja active Pending
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