Ratchet mechanism for the headband of protective headgear used in high temperature environments
A ratchet mechanism for the headband of a protective helmet or other headgear is designed to function in high-temperature environments, while still allowing for ready adjustment of the size and fit of the headband. In this regard, the ratchet mechanism includes a rotational element that has a pinion...
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| creator | SCHERER PAUL T |
| description | A ratchet mechanism for the headband of a protective helmet or other headgear is designed to function in high-temperature environments, while still allowing for ready adjustment of the size and fit of the headband. In this regard, the ratchet mechanism includes a rotational element that has a pinion adapted to mate with and engage the respective rack gears of the overlapping rear end portions of the headband, such that rotation of the rotational element causes lateral movement of the overlapping rear end portions with respect to one another. A spring assembly associated with the rotational element engages a ring gear defined by an insert received and retained in the housing so as to resist rotation of the rotational element relative to said housing sections. Since the spring assembly and insert are preferably manufactured from metal, they do not suffer from warping problems, and therefore, the ratchet mechanism continues to function properly even in high-temperature environments. |
| format | Patent |
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In this regard, the ratchet mechanism includes a rotational element that has a pinion adapted to mate with and engage the respective rack gears of the overlapping rear end portions of the headband, such that rotation of the rotational element causes lateral movement of the overlapping rear end portions with respect to one another. A spring assembly associated with the rotational element engages a ring gear defined by an insert received and retained in the housing so as to resist rotation of the rotational element relative to said housing sections. Since the spring assembly and insert are preferably manufactured from metal, they do not suffer from warping problems, and therefore, the ratchet mechanism continues to function properly even in high-temperature environments.</description><language>eng</language><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HATS ; HEAD COVERINGS ; HEADWEAR ; HUMAN NECESSITIES ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><creationdate>2007</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=20070213&DB=EPODOC&CC=US&NR=7174575B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070213&DB=EPODOC&CC=US&NR=7174575B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SCHERER PAUL T</creatorcontrib><title>Ratchet mechanism for the headband of protective headgear used in high temperature environments</title><description>A ratchet mechanism for the headband of a protective helmet or other headgear is designed to function in high-temperature environments, while still allowing for ready adjustment of the size and fit of the headband. In this regard, the ratchet mechanism includes a rotational element that has a pinion adapted to mate with and engage the respective rack gears of the overlapping rear end portions of the headband, such that rotation of the rotational element causes lateral movement of the overlapping rear end portions with respect to one another. A spring assembly associated with the rotational element engages a ring gear defined by an insert received and retained in the housing so as to resist rotation of the rotational element relative to said housing sections. Since the spring assembly and insert are preferably manufactured from metal, they do not suffer from warping problems, and therefore, the ratchet mechanism continues to function properly even in high-temperature environments.</description><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>HATS</subject><subject>HEAD COVERINGS</subject><subject>HEADWEAR</subject><subject>HUMAN NECESSITIES</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjsOwjAQRdE0FAjYw2yAIoLIPQhEzaeOBvslthSPLXuS9VPAAqiudHTXTX9ntR5KEdazhBppSIXUgzzYvVkcpYFySQqrYfnyCC40VzgKQj6MnhQxo7DOBQRZQkkSIVq3zWrgqWL366ah6-V5vu2RU4-a2UKg_ethWnPsTHdqD38sHx5sPRY</recordid><startdate>20070213</startdate><enddate>20070213</enddate><creator>SCHERER PAUL T</creator><scope>EVB</scope></search><sort><creationdate>20070213</creationdate><title>Ratchet mechanism for the headband of protective headgear used in high temperature environments</title><author>SCHERER PAUL T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US7174575B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>HATS</topic><topic>HEAD COVERINGS</topic><topic>HEADWEAR</topic><topic>HUMAN NECESSITIES</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><toplevel>online_resources</toplevel><creatorcontrib>SCHERER PAUL T</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SCHERER PAUL T</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ratchet mechanism for the headband of protective headgear used in high temperature environments</title><date>2007-02-13</date><risdate>2007</risdate><abstract>A ratchet mechanism for the headband of a protective helmet or other headgear is designed to function in high-temperature environments, while still allowing for ready adjustment of the size and fit of the headband. In this regard, the ratchet mechanism includes a rotational element that has a pinion adapted to mate with and engage the respective rack gears of the overlapping rear end portions of the headband, such that rotation of the rotational element causes lateral movement of the overlapping rear end portions with respect to one another. A spring assembly associated with the rotational element engages a ring gear defined by an insert received and retained in the housing so as to resist rotation of the rotational element relative to said housing sections. Since the spring assembly and insert are preferably manufactured from metal, they do not suffer from warping problems, and therefore, the ratchet mechanism continues to function properly even in high-temperature environments.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HATS HEAD COVERINGS HEADWEAR HUMAN NECESSITIES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS |
| title | Ratchet mechanism for the headband of protective headgear used in high temperature environments |
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