JPH0141926Y2 - - Google Patents
Info
- Publication number
- JPH0141926Y2 JPH0141926Y2 JP13883079U JP13883079U JPH0141926Y2 JP H0141926 Y2 JPH0141926 Y2 JP H0141926Y2 JP 13883079 U JP13883079 U JP 13883079U JP 13883079 U JP13883079 U JP 13883079U JP H0141926 Y2 JPH0141926 Y2 JP H0141926Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- ring
- hydraulic cylinder
- insertion hole
- tool
- 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
- 230000037431 insertion Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Actuator (AREA)
Description
【考案の詳細な説明】
この考案は油圧シリンダー装置に関するもの
で、基端部が閉塞され、先端部にピストンの挿入
孔を有した軸受部材が設けられる盲状の油圧シリ
ンダー内にピストンを挿入させた後にピストンの
抜止リングを容易に組付けることのできる油圧シ
リンダー装置を創作することを目的とする。[Detailed description of the invention] This invention relates to a hydraulic cylinder device, in which a piston is inserted into a blind hydraulic cylinder whose base end is closed and whose distal end is provided with a bearing member having a piston insertion hole. The purpose of the present invention is to create a hydraulic cylinder device in which a piston retaining ring can be easily assembled after the piston has been removed.
従来、この種の装置としては実公昭48−21756
号公報にみられるように、油圧シリンダーのピス
トン挿入孔から先にピストン抜止リングをシリン
ダー室内に挿入させおいて、該ピストン抜止リン
グをシリンダー室内でピストンを挿入するときに
該ピストンの基端部に嵌合するように整えてお
き、その後に基端部に割り溝を有したピストンを
挿入してシリンダーの基端部にピストン抜止リン
グを嵌合したのち、シリンダーの通油孔から工具
を突込んでピストンの割り溝に該工具を嵌合して
ピストンを更に挿入してピストンのリング嵌合溝
へ確実にピストン抜止リングを設置させるものが
あつた。このため、この従来装置では油圧シリン
ダー室内でピストンにピストン抜止リングを嵌合
させねばならず、これが面倒であつて組立工数が
多くかかつて生産性の向上が図れず、このために
油圧シリンダー装置がコスト高になる欠点があつ
た。 Conventionally, this type of device was the Utility Model Publication No.
As seen in the publication, a piston retaining ring is inserted into the cylinder chamber from the piston insertion hole of the hydraulic cylinder first, and when the piston is inserted into the cylinder chamber, the piston retaining ring is inserted into the base end of the piston. Prepare the piston so that it will fit, then insert the piston with a split groove at the base end, fit the piston retaining ring to the base end of the cylinder, and then insert the tool through the oil hole in the cylinder. There was one in which the piston was fitted into the split groove of the piston and the piston was further inserted to ensure that the piston retaining ring was installed in the ring fitting groove of the piston. For this reason, in this conventional device, it is necessary to fit a piston retaining ring to the piston inside the hydraulic cylinder chamber, which is troublesome and requires a lot of assembly man-hours, and it has not been possible to improve productivity. It had the disadvantage of high cost.
この考案は、上記の従来装置の欠点を解消した
油圧シリンダー装置を創作するもので、次の技術
的手段を講じた。 This invention aims to create a hydraulic cylinder device that eliminates the drawbacks of the conventional devices described above, and takes the following technical measures.
即ち、基端部側が取付部材２で閉塞されてお
り、先端部側にピストン９が挿通できる挿通孔４
を穿つた軸受部材５が取付けられた油圧シリンダ
ー１と、基端部側外周部にピストン抜止リング１
０を仮り保持するリング仮設部１１とこのリング
仮設部１１よりも先端側の近い部分にリング嵌合
溝１３とを設けたピストン９とから油圧シリンダ
ー装置を構成し、前記油圧シリンダー１の基部側
周面に、工具挿入孔６を穿設すると共に、前記ピ
ストン９のリング仮設部１１とリング嵌合溝１３
との両者間に亘つて前記工具挿入孔６から挿入さ
れる工具が嵌挿できる孔１４を設けてなる油圧シ
リンダー装置の構成とする。 That is, the proximal end side is closed by the mounting member 2, and the distal end side has an insertion hole 4 through which the piston 9 can be inserted.
A hydraulic cylinder 1 to which a bearing member 5 with a hole is attached, and a piston retaining ring 1 on the outer periphery of the base end side.
A hydraulic cylinder device is constituted by a ring temporary part 11 that temporarily holds 0, and a piston 9 having a ring fitting groove 13 in a part closer to the tip side than this ring temporary part 11, and A tool insertion hole 6 is bored in the circumferential surface, and a ring temporary part 11 and a ring fitting groove 13 of the piston 9 are formed.
The hydraulic cylinder device is configured such that a hole 14 is provided between the two and into which a tool inserted from the tool insertion hole 6 can be inserted.
この考案を図面に示した一実施例に基づいて詳
細に説明すると、１は油圧シリンダーで、筒状体
の基端部に適宜機枠部等にピンで枢着して連結す
る取付部材２を嵌合して密閉するように全周部を
熔接イし、先端部にはＯリング溝３を内面に穿つ
たピストン挿入孔４を有した軸受部材５を熔接し
て取付けている。６はシリンダー室７の基端部側
の外周に穿設したオイル流入出孔を兼ねる工具挿
入孔で、この工具挿入孔６からはドライバーや丸
棒等の工具が自由に挿入できるようになつてい
る。 This invention will be explained in detail based on an embodiment shown in the drawings. Reference numeral 1 denotes a hydraulic cylinder, and a mounting member 2 is connected to the base end of the cylindrical body by pivoting it to an appropriate machine frame or the like with a pin. The entire circumference is welded so as to fit and seal, and a bearing member 5 having a piston insertion hole 4 with an O-ring groove 3 bored on the inner surface is attached to the tip by welding. Reference numeral 6 denotes a tool insertion hole that also serves as an oil inlet and outlet hole, which is bored on the outer periphery of the base end side of the cylinder chamber 7, and a tool such as a screwdriver or a round bar can be inserted freely through this tool insertion hole 6. There is.
８はゴム製のＯリングである。 8 is a rubber O-ring.
９は油圧ピストンで、基端部にピストン抜止リ
ング１０を嵌合保持させた状態で前記油圧シリン
ダーの軸受部材５に設けたピストン挿入孔４から
自由に嵌・脱できるように小径部のリング仮設部
１１を設け、このリング仮設部１１から近い先端
部側にテーパー部１２を介してリング嵌合溝１３
を穿設し、前記リング仮設部１１とテーパー部１
２及びリング嵌合溝１３とに連なつて前記工具挿
入孔６からシリンダー室７内に挿通される工具が
挿通できる孔１４を穿つている。尚、該孔１４は
大きなキリ孔でもよいし、スリツト状の溝孔、割
状溝孔でもよい。 Reference numeral 9 denotes a hydraulic piston, and a temporary ring is provided at a small diameter portion so that the piston can be freely inserted and removed from the piston insertion hole 4 provided in the bearing member 5 of the hydraulic cylinder with a piston retaining ring 10 fitted and held at the base end. A ring fitting groove 13 is provided through a tapered part 12 on the distal end side near the ring temporary part 11.
and the ring temporary part 11 and the tapered part 1
2 and the ring fitting groove 13, a hole 14 is bored through which a tool inserted from the tool insertion hole 6 into the cylinder chamber 7 can be inserted. The hole 14 may be a large drilled hole, a slit-like slot, or a split slot.
上例の構成において、軸受部材５のＯリング溝
１３にＯリング８を嵌合したのち、ピストン９の
基端部の小径段部状のリング仮設部１１にピスト
ン抜止リング１０を該リング１０が抜け落ちない
で嵌着する状態にしておいて油圧シリンダー１の
軸受部材５の挿入孔４から突込むと、ピストン９
の先端に抜止リング１０が仮設された状態で、し
かも挿入孔４を傷付けないでピストン９が確実に
挿入できる。そして、次に、油圧シリンダー１の
工具挿入孔６にドライバー等の工具１５を突込ん
で更に第２図の如くピストン９の基端部寄りの孔
１４に工具の先端を嵌合してピストン９を強く突
込むと抜止リング１０が工具１５でピストン９の
先端側へ押寄せられて正規なリング嵌合溝１３へ
該抜止リング１０が嵌着され、最早やピストン９
が不測にシリンダー１から抜け落ちることがな
い。 In the configuration of the above example, after the O-ring 8 is fitted into the O-ring groove 13 of the bearing member 5, the piston retaining ring 10 is attached to the small-diameter step-shaped ring temporary part 11 at the base end of the piston 9. When the piston 9 is inserted through the insertion hole 4 of the bearing member 5 of the hydraulic cylinder 1 in a state where it is fitted without falling out, the piston 9
The piston 9 can be surely inserted without damaging the insertion hole 4 in a state where the retaining ring 10 is temporarily installed at the tip of the piston 9. Next, a tool 15 such as a screwdriver is inserted into the tool insertion hole 6 of the hydraulic cylinder 1, and the tip of the tool is fitted into the hole 14 near the base end of the piston 9 as shown in FIG. When pushed in forcefully, the retaining ring 10 is pushed toward the tip of the piston 9 by the tool 15, and the retaining ring 10 is fitted into the regular ring fitting groove 13, and the piston 9 is no longer inserted.
will not accidentally fall out of cylinder 1.
この考案は前記の構成としたから、この油圧シ
リンダー装置は、組立てが極めて簡単迅速にでき
る構造のものになり、素人でも迅速容易に組める
ために製造価格を低下させることができる。した
がつて、この考案による油圧シリンダー装置は製
造容易で安価なものになる作用効果を有する。 Since this invention has the above-mentioned structure, this hydraulic cylinder device has a structure that can be assembled extremely easily and quickly, and since even an amateur can assemble it quickly and easily, the manufacturing cost can be reduced. Therefore, the hydraulic cylinder device according to this invention has the advantage of being easy to manufacture and inexpensive.
図は、この考案の一実施例を示したもので、第
１図は縦断正面図、第２図、第３図は組立作業状
態を示した要部の縦断正面図、第４図は別例のピ
ストンの基端部を示した要部の正面図、第５図は
ピストンの抜止リングの側面図である。
図中記号、１は油圧シリンダー、２は取付部
材、４は挿入孔、５は軸受部材、６は工具挿入
孔、９はピストン、１０はピストン抜止リング、
１１はリング仮設部、１３はリング嵌合溝、１４
は嵌挿部を示す。
The figures show one embodiment of this invention. Figure 1 is a vertical sectional front view, Figures 2 and 3 are vertical sectional front views of the main parts showing the assembly work state, and Figure 4 is another example. FIG. 5 is a front view of the main parts showing the base end of the piston, and FIG. 5 is a side view of the retaining ring of the piston. Symbols in the figure: 1 is a hydraulic cylinder, 2 is a mounting member, 4 is an insertion hole, 5 is a bearing member, 6 is a tool insertion hole, 9 is a piston, 10 is a piston retaining ring,
11 is a ring temporary part, 13 is a ring fitting groove, 14
indicates the insertion part.
Claims (1)
部側にピストン９が挿通できる挿通孔４を穿つた
軸受部材５が取り付けられた油圧シリンダー１
と、基端部側外周部にピストン抜止リングを仮り
保持するためのリング仮設部１１とこのリング仮
設部１１よりも先端側の近い部分にリング嵌合溝
１３とを設けたピストン９と、更に、前記ピスト
ン９のリング仮設部１１で保持されたままで油圧
シリンダー１内に挿入できるピストン抜止リング
１０とから油圧シリンダー装置を構成し、前記油
圧シリンダー１の基部側周面に工具挿入孔６を穿
設すると共に、前記ピストン９のリング仮設部１
１とリング嵌合溝１３との両者間に亘つて前記工
具挿入孔６から挿入される工具が嵌挿できる孔１
４を設けてなる油圧シリンダー装置。 A hydraulic cylinder 1 is equipped with a bearing member 5 whose base end is closed by a piston 9 and whose distal end has an insertion hole 4 through which the piston 9 can be inserted.
and a piston 9 provided with a ring temporary part 11 for temporarily holding a piston retaining ring on the outer periphery of the base end side, and a ring fitting groove 13 in a part closer to the distal end side than this temporary ring part 11, and further A hydraulic cylinder device is constituted by a piston retaining ring 10 that can be inserted into the hydraulic cylinder 1 while being held by the ring temporary part 11 of the piston 9, and a tool insertion hole 6 is bored in the circumferential surface of the base side of the hydraulic cylinder 1. At the same time, the ring temporary part 1 of the piston 9
1 and the ring fitting groove 13 into which a tool inserted from the tool insertion hole 6 can be inserted.
A hydraulic cylinder device equipped with 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13883079U JPH0141926Y2 (en) | 1979-10-05 | 1979-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13883079U JPH0141926Y2 (en) | 1979-10-05 | 1979-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5655102U JPS5655102U (en) | 1981-05-14 |
| JPH0141926Y2 true JPH0141926Y2 (en) | 1989-12-11 |
Family
ID=29370188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13883079U Expired JPH0141926Y2 (en) | 1979-10-05 | 1979-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0141926Y2 (en) |
-
1979
- 1979-10-05 JP JP13883079U patent/JPH0141926Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5655102U (en) | 1981-05-14 |
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