TIGHTENING STATE DETECTING METHOD FOR BOLT
PURPOSE:To detect a tightening state of a bolt with accuracy by calculating a torque rate adequately reflecting fastening torque actually acting on the bolt. CONSTITUTION:In tightening a bolt using an angle tightening method through an intermediary such as a washer up to a plastic region, a line seg...
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| creator | UOTANI YUZO |
| description | PURPOSE:To detect a tightening state of a bolt with accuracy by calculating a torque rate adequately reflecting fastening torque actually acting on the bolt. CONSTITUTION:In tightening a bolt using an angle tightening method through an intermediary such as a washer up to a plastic region, a line segment 23 is acquired according to a torque rate of a final curved part 20c with a modified seat Pm as a starting point and a final torque value Te as an end point, and the line segment 23 is moved in parallel so that the final torque value Te becomes the end point when a tightening angle theta reaches a target tightening angle theta1, the modified seat point Pm is moved to a position where a line segment 23' after parallel movement crosses a lateral axis 22. Thus, an estimated rotation angle DELTAthetap that the tightening angle theta reaches the target tightening angle theta1 with the modified seat point P where the line segment 23' crosses the lateral axis 22 reflects an actual estimated rotation angle with accuracy. |
| format | Patent |
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CONSTITUTION:In tightening a bolt using an angle tightening method through an intermediary such as a washer up to a plastic region, a line segment 23 is acquired according to a torque rate of a final curved part 20c with a modified seat Pm as a starting point and a final torque value Te as an end point, and the line segment 23 is moved in parallel so that the final torque value Te becomes the end point when a tightening angle theta reaches a target tightening angle theta1, the modified seat point Pm is moved to a position where a line segment 23' after parallel movement crosses a lateral axis 22. Thus, an estimated rotation angle DELTAthetap that the tightening angle theta reaches the target tightening angle theta1 with the modified seat point P where the line segment 23' crosses the lateral axis 22 reflects an actual estimated rotation angle with accuracy.</description><edition>5</edition><language>eng</language><subject>COMBINED OPERATIONS ; HAND TOOLS ; MACHINE TOOLS ; MANIPULATORS ; MEASURING ; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; OTHER WORKING OF METAL ; PERFORMING OPERATIONS ; PHYSICS ; PORTABLE POWER-DRIVEN TOOLS ; TESTING ; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING ; TRANSPORTING ; UNIVERSAL MACHINE TOOLS</subject><creationdate>1994</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19941011&DB=EPODOC&CC=JP&NR=H06285726A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19941011&DB=EPODOC&CC=JP&NR=H06285726A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UOTANI YUZO</creatorcontrib><title>TIGHTENING STATE DETECTING METHOD FOR BOLT</title><description>PURPOSE:To detect a tightening state of a bolt with accuracy by calculating a torque rate adequately reflecting fastening torque actually acting on the bolt. CONSTITUTION:In tightening a bolt using an angle tightening method through an intermediary such as a washer up to a plastic region, a line segment 23 is acquired according to a torque rate of a final curved part 20c with a modified seat Pm as a starting point and a final torque value Te as an end point, and the line segment 23 is moved in parallel so that the final torque value Te becomes the end point when a tightening angle theta reaches a target tightening angle theta1, the modified seat point Pm is moved to a position where a line segment 23' after parallel movement crosses a lateral axis 22. Thus, an estimated rotation angle DELTAthetap that the tightening angle theta reaches the target tightening angle theta1 with the modified seat point P where the line segment 23' crosses the lateral axis 22 reflects an actual estimated rotation angle with accuracy.</description><subject>COMBINED OPERATIONS</subject><subject>HAND TOOLS</subject><subject>MACHINE TOOLS</subject><subject>MANIPULATORS</subject><subject>MEASURING</subject><subject>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>OTHER WORKING OF METAL</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>PORTABLE POWER-DRIVEN TOOLS</subject><subject>TESTING</subject><subject>TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING</subject><subject>TRANSPORTING</subject><subject>UNIVERSAL MACHINE TOOLS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAK8XT3CHH18_RzVwgOcQxxVXBxDXF1DgHxfV1DPPxdFNz8gxSc_H1CeBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4GZkYWpuZGZozExagBVhSTd</recordid><startdate>19941011</startdate><enddate>19941011</enddate><creator>UOTANI YUZO</creator><scope>EVB</scope></search><sort><creationdate>19941011</creationdate><title>TIGHTENING STATE DETECTING METHOD FOR BOLT</title><author>UOTANI YUZO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06285726A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>COMBINED OPERATIONS</topic><topic>HAND TOOLS</topic><topic>MACHINE TOOLS</topic><topic>MANIPULATORS</topic><topic>MEASURING</topic><topic>MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>OTHER WORKING OF METAL</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>PORTABLE POWER-DRIVEN TOOLS</topic><topic>TESTING</topic><topic>TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING</topic><topic>TRANSPORTING</topic><topic>UNIVERSAL MACHINE TOOLS</topic><toplevel>online_resources</toplevel><creatorcontrib>UOTANI YUZO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>UOTANI YUZO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TIGHTENING STATE DETECTING METHOD FOR BOLT</title><date>1994-10-11</date><risdate>1994</risdate><abstract>PURPOSE:To detect a tightening state of a bolt with accuracy by calculating a torque rate adequately reflecting fastening torque actually acting on the bolt. CONSTITUTION:In tightening a bolt using an angle tightening method through an intermediary such as a washer up to a plastic region, a line segment 23 is acquired according to a torque rate of a final curved part 20c with a modified seat Pm as a starting point and a final torque value Te as an end point, and the line segment 23 is moved in parallel so that the final torque value Te becomes the end point when a tightening angle theta reaches a target tightening angle theta1, the modified seat point Pm is moved to a position where a line segment 23' after parallel movement crosses a lateral axis 22. Thus, an estimated rotation angle DELTAthetap that the tightening angle theta reaches the target tightening angle theta1 with the modified seat point P where the line segment 23' crosses the lateral axis 22 reflects an actual estimated rotation angle with accuracy.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | COMBINED OPERATIONS HAND TOOLS MACHINE TOOLS MANIPULATORS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PHYSICS PORTABLE POWER-DRIVEN TOOLS TESTING TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING UNIVERSAL MACHINE TOOLS |
| title | TIGHTENING STATE DETECTING METHOD FOR BOLT |
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