JPH0253383U - - Google Patents
Info
- Publication number
- JPH0253383U JPH0253383U JP13216288U JP13216288U JPH0253383U JP H0253383 U JPH0253383 U JP H0253383U JP 13216288 U JP13216288 U JP 13216288U JP 13216288 U JP13216288 U JP 13216288U JP H0253383 U JPH0253383 U JP H0253383U
- Authority
- JP
- Japan
- Prior art keywords
- shank
- support hole
- impact device
- striking
- striking work
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は本願考案の実施例の縦断面図、第２図
は第１図の―線断面図、第３図は実施例の回
転部材および封鎖部材を示した斜視図、第４図は
第２図Ｐ部の拡大図、第５図は本願考案を適用し
た杭打ち装置の外観図である。
１……ケーシング、２３……ボス部、２４……
支持孔、２５……撃打作業体、２５ａ……（撃打
作業体の）シヤンク部、２６……Ｏリング、２７
……凹溝。
FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a perspective view showing a rotating member and a sealing member of the embodiment, and FIG. FIG. 2 is an enlarged view of part P, and FIG. 5 is an external view of a pile driving device to which the invention of the present application is applied. 1...Casing, 23...Boss part, 24...
Support hole, 25... Strike work body, 25a... Shank portion (of strike work body), 26... O ring, 27
...concave groove.
Claims (1)
のシヤンク部を軸方向往復移動可能に支持し、上
記シヤンク部を撃打機構によつて連続的に叩打し
て撃打作業体に衝撃力を与えるように構成された
衝撃装置において、 上記シヤンク部の下方に大径部を形成すること
により、支持孔に対するシヤンク部の上動端を規
定する一方、上記支持孔の内周に設けた環状溝に
、Ｏリングをシヤンク部の外周面との間に弾性圧
縮されるように内嵌するとともに、上動端にある
上記シヤンク部の外周における上記Ｏリングより
上に位置する部位に、環状凹溝を設けたことを特
徴とする、衝撃装置における撃打作業体の抜け止
め機構。[Scope of Claim for Utility Model Registration] A shank part of a striking work body is supported in a support hole provided in the lower part of the casing so as to be movable back and forth in the axial direction, and the shank part is continuously struck by a striking mechanism to perform the striking work. In an impact device configured to apply an impact force to a body, a large-diameter portion is formed below the shank portion to define the upper moving end of the shank portion relative to the support hole, and the inner periphery of the support hole. An O-ring is fitted into the annular groove provided in the shank so as to be elastically compressed between the outer peripheral surface of the shank, and a portion located above the O-ring on the outer periphery of the shank at the upper moving end. A mechanism for preventing a striking work body from falling off in an impact device, characterized in that an annular groove is provided in the impact device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13216288U JPH0253383U (en) | 1988-10-07 | 1988-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13216288U JPH0253383U (en) | 1988-10-07 | 1988-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0253383U true JPH0253383U (en) | 1990-04-17 |
Family
ID=31388875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13216288U Pending JPH0253383U (en) | 1988-10-07 | 1988-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0253383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015221481A (en) * | 2014-05-23 | 2015-12-10 | 山田機械工業株式会社 | Striking work machine |
-
1988
- 1988-10-07 JP JP13216288U patent/JPH0253383U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015221481A (en) * | 2014-05-23 | 2015-12-10 | 山田機械工業株式会社 | Striking work machine |