JPH0362776U - - Google Patents
Info
- Publication number
- JPH0362776U JPH0362776U JP12489389U JP12489389U JPH0362776U JP H0362776 U JPH0362776 U JP H0362776U JP 12489389 U JP12489389 U JP 12489389U JP 12489389 U JP12489389 U JP 12489389U JP H0362776 U JPH0362776 U JP H0362776U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- piston shaft
- fitting part
- hydraulic
- shaft fitting
- 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.)
- Granted
Links
- 238000009527 percussion Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/365—Use of seals
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は第７図のＡに相当する本考案に係るピ
ストン軸嵌合部の拡大図、第２図は第７図のＢに
相当する本考案に係るピストン軸嵌合部の拡大図
、第３図は第７図のＡに相当する従来のピストン
軸嵌合部の拡大図、第４図は第７図のＢに相当す
る従来のピストン軸嵌合部の拡大図、第５図はＯ
リングとシール部材の拡大図、第６図は第５図の
変形例の拡大図、第７図は油圧打撃機の断面図で
ある。
１……油圧打撃機、２……打撃ピストン、２ａ
，２ｂ……ピストン軸、３……前室、４……後室
、７……機体、７ｄ，７ｅ，７ｆ……シール用凹
部、８……Ｏリング、９……シール部材、１５，
１６……加圧用油圧室、Ａ，Ｂ……ピストン軸嵌
合部。
1 is an enlarged view of the piston shaft fitting portion according to the present invention corresponding to A in FIG. 7, FIG. 2 is an enlarged view of the piston shaft fitting portion according to the present invention corresponding to B in FIG. 7, Fig. 3 is an enlarged view of a conventional piston shaft fitting part corresponding to A in Fig. 7, Fig. 4 is an enlarged view of a conventional piston shaft fitting part corresponding to B in Fig. 7, and Fig. 5 is an enlarged view of a conventional piston shaft fitting part corresponding to A in Fig. 7. O
FIG. 6 is an enlarged view of a modification of FIG. 5, and FIG. 7 is a sectional view of the hydraulic impact machine. 1... Hydraulic impact machine, 2... Impact piston, 2a
, 2b... Piston shaft, 3... Front chamber, 4... Rear chamber, 7... Body, 7d, 7e, 7f... Seal recess, 8... O-ring, 9... Seal member, 15,
16... Hydraulic chamber for pressurization, A, B... Piston shaft fitting part.
Claims (1)
に嵌合され、該ピストンの前室側のピストン軸嵌
合部と後室側のピストン軸嵌合部とに、シール部
材を油圧によつてピストン軸に向けて張り出させ
てピストン軸を支持させる加圧用油圧室が形成さ
れていることを特徴とする油圧打撃機の打撃ピス
トン支持装置。 A striking piston is fitted into the cylindrical body so as to be able to move back and forth, and a sealing member is attached to the piston shaft fitting part on the front chamber side and the piston shaft fitting part on the rear chamber side of the piston using hydraulic pressure. A percussion piston support device for a hydraulic percussion machine, characterized in that a pressurizing hydraulic chamber is formed that extends toward the piston to support a piston shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124893U JPH0731972Y2 (en) | 1989-10-25 | 1989-10-25 | Impact piston support device for hydraulic impact machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124893U JPH0731972Y2 (en) | 1989-10-25 | 1989-10-25 | Impact piston support device for hydraulic impact machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362776U true JPH0362776U (en) | 1991-06-19 |
| JPH0731972Y2 JPH0731972Y2 (en) | 1995-07-26 |
Family
ID=31672788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989124893U Expired - Lifetime JPH0731972Y2 (en) | 1989-10-25 | 1989-10-25 | Impact piston support device for hydraulic impact machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731972Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009097705A (en) * | 2007-09-26 | 2009-05-07 | Nok Corp | Sealing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101315419B1 (en) * | 2012-03-07 | 2013-10-14 | 주식회사수산중공업 | an oil leakage prevention apparatus of piston for the breaker |
-
1989
- 1989-10-25 JP JP1989124893U patent/JPH0731972Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009097705A (en) * | 2007-09-26 | 2009-05-07 | Nok Corp | Sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731972Y2 (en) | 1995-07-26 |