Backrest anti-shearing device
The invention discloses a backrest shearing force preventing device which is suitable for a backrest with an angle adjusting function and comprises a basic backrest and a sliding backrest. Relative sliding between the basic backrest and the sliding backrest is realized through a sliding piece; a cou...
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| creator | KIM WON-GWI WANG JIAGUO CHEN HAO LEI CHENGBIN MA CHANG LYU WEN |
| description | The invention discloses a backrest shearing force preventing device which is suitable for a backrest with an angle adjusting function and comprises a basic backrest and a sliding backrest. Relative sliding between the basic backrest and the sliding backrest is realized through a sliding piece; a counterweight traction mechanism is arranged on the basic backrest, a traction fixing mechanism is arranged on the sliding backrest, and the counterweight traction mechanism is matched with the traction fixing mechanism and used for adjusting the height of the sliding backrest. Through the sliding piece and the counterweight traction mechanism, relative sliding of the back of the human body and the seat backrest is converted into sliding of the sliding backrest relative to the basic backrest, relative displacement of the back of the human body and the sliding backrest does not exist, discomfort of the back is relieved, the risk of friction damage is avoided, and meanwhile the risk that the body slides forwards can be |
| format | Patent |
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Relative sliding between the basic backrest and the sliding backrest is realized through a sliding piece; a counterweight traction mechanism is arranged on the basic backrest, a traction fixing mechanism is arranged on the sliding backrest, and the counterweight traction mechanism is matched with the traction fixing mechanism and used for adjusting the height of the sliding backrest. 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Through the sliding piece and the counterweight traction mechanism, relative sliding of the back of the human body and the seat backrest is converted into sliding of the sliding backrest relative to the basic backrest, relative displacement of the back of the human body and the sliding backrest does not exist, discomfort of the back is relieved, the risk of friction damage is avoided, and meanwhile the risk that the body slides forwards can be</description><subject>CHAIRS FOR DENTISTRY</subject><subject>FUNERAL DEVICES</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>OPERATING TABLES OR CHAIRS</subject><subject>TRANSPORT OR ACCOMODATION FOR PATIENTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB1SkzOLkotLlFIzCvJ1C3OSE0sysxLV0hJLctMTuVhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoaGFqam5sbmJo7GxKgBAMZkJB8</recordid><startdate>20240830</startdate><enddate>20240830</enddate><creator>KIM WON-GWI</creator><creator>WANG JIAGUO</creator><creator>CHEN HAO</creator><creator>LEI CHENGBIN</creator><creator>MA CHANG</creator><creator>LYU WEN</creator><scope>EVB</scope></search><sort><creationdate>20240830</creationdate><title>Backrest anti-shearing device</title><author>KIM WON-GWI ; WANG JIAGUO ; CHEN HAO ; LEI CHENGBIN ; MA CHANG ; LYU WEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN118557374A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>CHAIRS FOR DENTISTRY</topic><topic>FUNERAL DEVICES</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>OPERATING TABLES OR CHAIRS</topic><topic>TRANSPORT OR ACCOMODATION FOR PATIENTS</topic><toplevel>online_resources</toplevel><creatorcontrib>KIM WON-GWI</creatorcontrib><creatorcontrib>WANG JIAGUO</creatorcontrib><creatorcontrib>CHEN HAO</creatorcontrib><creatorcontrib>LEI CHENGBIN</creatorcontrib><creatorcontrib>MA CHANG</creatorcontrib><creatorcontrib>LYU WEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIM WON-GWI</au><au>WANG JIAGUO</au><au>CHEN HAO</au><au>LEI CHENGBIN</au><au>MA CHANG</au><au>LYU WEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Backrest anti-shearing device</title><date>2024-08-30</date><risdate>2024</risdate><abstract>The invention discloses a backrest shearing force preventing device which is suitable for a backrest with an angle adjusting function and comprises a basic backrest and a sliding backrest. 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| language | chi ; eng |
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| subjects | CHAIRS FOR DENTISTRY FUNERAL DEVICES HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE OPERATING TABLES OR CHAIRS TRANSPORT OR ACCOMODATION FOR PATIENTS |
| title | Backrest anti-shearing device |
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