HAMMER GRAB
PROBLEM TO BE SOLVED: To provide a hammer grab capable of decreasing frictional resistance of a swivel mechanism. SOLUTION: A hanging shaft body 2 comprising upper-side large-diameter shaft portion 3 and a lower-side small-diameter shaft portion 4 is provided: a cylindrical base frame 5 rotatably co...
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| creator | TOKIMUNE AKIRA |
| description | PROBLEM TO BE SOLVED: To provide a hammer grab capable of decreasing frictional resistance of a swivel mechanism. SOLUTION: A hanging shaft body 2 comprising upper-side large-diameter shaft portion 3 and a lower-side small-diameter shaft portion 4 is provided: a cylindrical base frame 5 rotatably coupled via a thrust bearing 6 is suspended on the large-diameter shaft portion 3 of the hanging shaft body 2; an external cylinder member 8 constituting a swivel mechanism 7 is rotatably fitted to the small-diameter shaft portion 4 using the small-diameter shaft portion 4 as an internal cylinder member; a cylindrical body frame 9 is suspended and coupled to the lower portion of the cylindrical base frame 5; shells 11 and 11 are pivotally attached to the lower end side of the cylindrical body frame 9; a cylinder 12 for driving the opening/closing of the shell is installed in the cylindrical body frame 9; an ascending/descending frame 13 is provided below the cylinder 12; the cylinder 12 is interlocked with and coupled to the ascending/descending frame 13; the ascending/descending frame 13 and the shells 11 and 11 are interlocked and coupled together by a link mechanism 14; and the shells 11 and 11 are opened/closed by lifting and lowering the ascending/descending frame 13 by a telescopic operation of the cylinder 12. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: A hanging shaft body 2 comprising upper-side large-diameter shaft portion 3 and a lower-side small-diameter shaft portion 4 is provided: a cylindrical base frame 5 rotatably coupled via a thrust bearing 6 is suspended on the large-diameter shaft portion 3 of the hanging shaft body 2; an external cylinder member 8 constituting a swivel mechanism 7 is rotatably fitted to the small-diameter shaft portion 4 using the small-diameter shaft portion 4 as an internal cylinder member; a cylindrical body frame 9 is suspended and coupled to the lower portion of the cylindrical base frame 5; shells 11 and 11 are pivotally attached to the lower end side of the cylindrical body frame 9; a cylinder 12 for driving the opening/closing of the shell is installed in the cylindrical body frame 9; an ascending/descending frame 13 is provided below the cylinder 12; the cylinder 12 is interlocked with and coupled to the ascending/descending frame 13; the ascending/descending frame 13 and the shells 11 and 11 are interlocked and coupled together by a link mechanism 14; and the shells 11 and 11 are opened/closed by lifting and lowering the ascending/descending frame 13 by a telescopic operation of the cylinder 12. 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SOLUTION: A hanging shaft body 2 comprising upper-side large-diameter shaft portion 3 and a lower-side small-diameter shaft portion 4 is provided: a cylindrical base frame 5 rotatably coupled via a thrust bearing 6 is suspended on the large-diameter shaft portion 3 of the hanging shaft body 2; an external cylinder member 8 constituting a swivel mechanism 7 is rotatably fitted to the small-diameter shaft portion 4 using the small-diameter shaft portion 4 as an internal cylinder member; a cylindrical body frame 9 is suspended and coupled to the lower portion of the cylindrical base frame 5; shells 11 and 11 are pivotally attached to the lower end side of the cylindrical body frame 9; a cylinder 12 for driving the opening/closing of the shell is installed in the cylindrical body frame 9; an ascending/descending frame 13 is provided below the cylinder 12; the cylinder 12 is interlocked with and coupled to the ascending/descending frame 13; the ascending/descending frame 13 and the shells 11 and 11 are interlocked and coupled together by a link mechanism 14; and the shells 11 and 11 are opened/closed by lifting and lowering the ascending/descending frame 13 by a telescopic operation of the cylinder 12. 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SOLUTION: A hanging shaft body 2 comprising upper-side large-diameter shaft portion 3 and a lower-side small-diameter shaft portion 4 is provided: a cylindrical base frame 5 rotatably coupled via a thrust bearing 6 is suspended on the large-diameter shaft portion 3 of the hanging shaft body 2; an external cylinder member 8 constituting a swivel mechanism 7 is rotatably fitted to the small-diameter shaft portion 4 using the small-diameter shaft portion 4 as an internal cylinder member; a cylindrical body frame 9 is suspended and coupled to the lower portion of the cylindrical base frame 5; shells 11 and 11 are pivotally attached to the lower end side of the cylindrical body frame 9; a cylinder 12 for driving the opening/closing of the shell is installed in the cylindrical body frame 9; an ascending/descending frame 13 is provided below the cylinder 12; the cylinder 12 is interlocked with and coupled to the ascending/descending frame 13; the ascending/descending frame 13 and the shells 11 and 11 are interlocked and coupled together by a link mechanism 14; and the shells 11 and 11 are opened/closed by lifting and lowering the ascending/descending frame 13 by a telescopic operation of the cylinder 12. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | HAMMER GRAB |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T11%3A13%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=TOKIMUNE%20AKIRA&rft.date=2011-09-29&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2011190638A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |