Title:
【発明の名称】直線衝撃リッパ装置
Document Type and Number:
Japanese Patent JPH05500991
Kind Code:
A
Abstract:
Impact rippers are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using structures which mount the impact hammer and the linear ram within a single housing transmit vibrations into the mounting frame and are difficult to service and expensive to maintain. The subject linear impact ripper apparatus has an impact hammer having one end resiliently mounted to a mounting frame and another end slidably mounted on one of the linear ram and the tool holder. Thus, the disclosed linear impact ripper apparatus reduces vibrations transmitted to the mounting frame and has separate elements for ease of service and reduced maintenance cost and maintains the alignment between the separate parts of the structure. The arrangement allows the connection between the impact hammer and one of the linear ram and the tool holder to be sealed from atmosphere.
Inventors:
Jensen, Brian Di
Application Number:
JP50287090A
Publication Date:
February 25, 1993
Filing Date:
January 19, 1990
Export Citation:
Assignee:
Caterpillar ink
International Classes:
E21B1/38; B25D17/24; B25D17/28; E02F5/32; E21B1/00; E21B1/26; E21C37/24; (IPC1-7): E21C3/04
Attorney, Agent or Firm:
Akira Matsumoto