Title:
破壊機械の衝撃緩和システム
Document Type and Number:
Japanese Patent JP5160558
Kind Code:
B2
Abstract:
A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); a moveable mass (2) for impacting on the driven end of the striker pin (4), and a shock-absorber (7a, b) coupled to the retaining locations. The shock-absorber (1) also includes at least two elastic (12) and at least one inelastic (13) layer in a first shock-absorbing assembly (7a) located internally within the housing about the striker pin (2) between the retaining location and the striker pin impact end. The shock-absorbing assembly (7a) is configured to allow movement of the shock absorber parallel to, or co-axial with the striker pin longitudinal axis during use.
Inventors:
Robson, Angus, Peter
Application Number:
JP2009540192A
Publication Date:
March 13, 2013
Filing Date:
December 03, 2007
Export Citation:
Assignee:
Terminator IP Société Anonym
International Classes:
E21B1/02; E21C27/28
Domestic Patent References:
| JP8503169A | ||||
| JP60062594U | ||||
| JP51092502U |
Attorney, Agent or Firm:
Shigeo Naruse