Title:
SINGLE-STROKE PERCUSSION DEVICE
Document Type and Number:
WIPO Patent Application WO/1988/004598
Kind Code:
A1
Abstract:
A single-stroke percussion device comprises a hollow cylindrical casing (1) with an inlet and an outlet opening (2, 3). A striker (1) is mounted inside the casing (1) so as to divide its internal cavity into an upper and a lower chamber (5, 6). A working instrument (7) is mounted in the casing (1) on the same side as the lower chamber (5), mounted in the upper part of the casing (1) is a grip (9), provided with channels and with an air distributing mechanism (8). A sleeve (12) with openings (13) is mounted on the casing (1) so as to form, together with the latter, a cavity (14). An air distributing bushing (15) spring-loaded in the axial direction is mounted inside the cavity (14). The outlet openings (3) of the casing (1) are situated at the same level as the openings (13) of the sleeve (12). Radial openings and grooves (17) are provided in the air distributing bushing (15) at the same level as the radial openings (16) on both surfaces of the air distributing bushing (15). The striker (4) spring-loaded on the same side as the lower chamber (5), is provided with at least one channel (18).
Inventors:
SUDNISHNIKOV VADIM BORISOVICH (SU)
ZELENTSOV ANDREI ALEXANDROVICH (SU)
ZELENTSOV ANDREI ALEXANDROVICH (SU)
Application Number:
PCT/SU1986/000126
Publication Date:
June 30, 1988
Filing Date:
December 15, 1986
Export Citation:
Assignee:
INST GORNOGO DELA SIBIRSKOGO O (SU)
International Classes:
B25D9/04; B25D9/00; B25D9/20; (IPC1-7): B25D9/04
Foreign References:
| SU294935A1 | ||||
| SU664831A1 | 1979-05-30 | |||
| SU764970A1 | 1980-09-23 | |||
| GB1463412A | 1977-02-02 |
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