TORQUE WRENCH
A torque wrench equipped with a cam-type torque detection mechanism is provided which is capable of detecting a torque with high accuracy, providing a non-unusual-feeling of handle operation after torque has been detected, and enabling tightening of fastened members such as bolts with safety. In a t...
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| creator | AIKAWA, Shozo TSUJI, Hiroshi KATO, Yuji SHIMURA, Koichi OGATA, Tomohiro |
| description | A torque wrench equipped with a cam-type torque detection mechanism is provided which is capable of detecting a torque with high accuracy, providing a non-unusual-feeling of handle operation after torque has been detected, and enabling tightening of fastened members such as bolts with safety. In a torque wrench equipped with the cam-type torque detection mechanism, a cam portion (27) formed on the outer circumference of a tubular cam (22) includes: a static engagement cam surface (27a) with which a roller member (18) in a static status engages in a non-operated status; a gradually increasing torque peak cam surface (27b) which is connected to the static engagement cam surface (27a) and with which the roller member (18) is brought into contact while moving to thereby gradually increase the torque peak value; a cam top surface (27c) forming the cam top portion continued to the gradually increasing torque peak cam surface (27b); a gradually decreasing torque cam surface (27d) for gradually decreasing a plus torque to the roller member (18) to zero; and a minus torque cam surface (27e) for imparting a minus torque to the roller member (18) having passed over the gradually decreasing torque cam surface (27d). |
| format | Patent |
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In a torque wrench equipped with the cam-type torque detection mechanism, a cam portion (27) formed on the outer circumference of a tubular cam (22) includes: a static engagement cam surface (27a) with which a roller member (18) in a static status engages in a non-operated status; a gradually increasing torque peak cam surface (27b) which is connected to the static engagement cam surface (27a) and with which the roller member (18) is brought into contact while moving to thereby gradually increase the torque peak value; a cam top surface (27c) forming the cam top portion continued to the gradually increasing torque peak cam surface (27b); a gradually decreasing torque cam surface (27d) for gradually decreasing a plus torque to the roller member (18) to zero; and a minus torque cam surface (27e) for imparting a minus torque to the roller member (18) having passed over the gradually decreasing torque cam surface (27d).</description><language>eng ; fre ; ger</language><subject>HAND TOOLS ; MANIPULATORS ; PERFORMING OPERATIONS ; PORTABLE POWER-DRIVEN TOOLS ; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING ; TRANSPORTING</subject><creationdate>2018</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=20180912&DB=EPODOC&CC=EP&NR=3372344A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180912&DB=EPODOC&CC=EP&NR=3372344A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AIKAWA, Shozo</creatorcontrib><creatorcontrib>TSUJI, Hiroshi</creatorcontrib><creatorcontrib>KATO, Yuji</creatorcontrib><creatorcontrib>SHIMURA, Koichi</creatorcontrib><creatorcontrib>OGATA, Tomohiro</creatorcontrib><title>TORQUE WRENCH</title><description>A torque wrench equipped with a cam-type torque detection mechanism is provided which is capable of detecting a torque with high accuracy, providing a non-unusual-feeling of handle operation after torque has been detected, and enabling tightening of fastened members such as bolts with safety. In a torque wrench equipped with the cam-type torque detection mechanism, a cam portion (27) formed on the outer circumference of a tubular cam (22) includes: a static engagement cam surface (27a) with which a roller member (18) in a static status engages in a non-operated status; a gradually increasing torque peak cam surface (27b) which is connected to the static engagement cam surface (27a) and with which the roller member (18) is brought into contact while moving to thereby gradually increase the torque peak value; a cam top surface (27c) forming the cam top portion continued to the gradually increasing torque peak cam surface (27b); a gradually decreasing torque cam surface (27d) for gradually decreasing a plus torque to the roller member (18) to zero; and a minus torque cam surface (27e) for imparting a minus torque to the roller member (18) having passed over the gradually decreasing torque cam surface (27d).</description><subject>HAND TOOLS</subject><subject>MANIPULATORS</subject><subject>PERFORMING OPERATIONS</subject><subject>PORTABLE POWER-DRIVEN TOOLS</subject><subject>TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAN8Q8KDHVVCA9y9XP24GFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BxsbmRsYmJo6GxkQoAQB-XBxX</recordid><startdate>20180912</startdate><enddate>20180912</enddate><creator>AIKAWA, Shozo</creator><creator>TSUJI, Hiroshi</creator><creator>KATO, Yuji</creator><creator>SHIMURA, Koichi</creator><creator>OGATA, Tomohiro</creator><scope>EVB</scope></search><sort><creationdate>20180912</creationdate><title>TORQUE WRENCH</title><author>AIKAWA, Shozo ; TSUJI, Hiroshi ; KATO, Yuji ; SHIMURA, Koichi ; OGATA, Tomohiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3372344A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2018</creationdate><topic>HAND TOOLS</topic><topic>MANIPULATORS</topic><topic>PERFORMING OPERATIONS</topic><topic>PORTABLE POWER-DRIVEN TOOLS</topic><topic>TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>AIKAWA, Shozo</creatorcontrib><creatorcontrib>TSUJI, Hiroshi</creatorcontrib><creatorcontrib>KATO, Yuji</creatorcontrib><creatorcontrib>SHIMURA, Koichi</creatorcontrib><creatorcontrib>OGATA, Tomohiro</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>AIKAWA, Shozo</au><au>TSUJI, Hiroshi</au><au>KATO, Yuji</au><au>SHIMURA, Koichi</au><au>OGATA, Tomohiro</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TORQUE WRENCH</title><date>2018-09-12</date><risdate>2018</risdate><abstract>A torque wrench equipped with a cam-type torque detection mechanism is provided which is capable of detecting a torque with high accuracy, providing a non-unusual-feeling of handle operation after torque has been detected, and enabling tightening of fastened members such as bolts with safety. In a torque wrench equipped with the cam-type torque detection mechanism, a cam portion (27) formed on the outer circumference of a tubular cam (22) includes: a static engagement cam surface (27a) with which a roller member (18) in a static status engages in a non-operated status; a gradually increasing torque peak cam surface (27b) which is connected to the static engagement cam surface (27a) and with which the roller member (18) is brought into contact while moving to thereby gradually increase the torque peak value; a cam top surface (27c) forming the cam top portion continued to the gradually increasing torque peak cam surface (27b); a gradually decreasing torque cam surface (27d) for gradually decreasing a plus torque to the roller member (18) to zero; and a minus torque cam surface (27e) for imparting a minus torque to the roller member (18) having passed over the gradually decreasing torque cam surface (27d).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING |
| title | TORQUE WRENCH |
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