IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0709943
(1976-07-29)
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발명자
/ 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
17 인용 특허 :
0 |
초록
▼
An upright standard assembly for failing when subjected to horizontal impact forces while solidly supporting an upright standard under normal conditions. The assembly includes a generally vertical standard, a base member, a connection member to releasably attach the standard to the base member, at l
An upright standard assembly for failing when subjected to horizontal impact forces while solidly supporting an upright standard under normal conditions. The assembly includes a generally vertical standard, a base member, a connection member to releasably attach the standard to the base member, at least one fracture initiating slot formed in the coupling body, and a washer having one or more teeth formed therein for receipt by the fracture-initiating slot(s) of the coupling body. The washer is made of harder material than the coupling body, and has a smooth bore extending therethrough so that no positive holding action is provided between it and the connection member extending therethrough. The coupling body also does not have any threads formed on the portion thereof between the longitudinal termination of the slot(s) and the connection member receiving end thereof.
대표청구항
▼
1. An upright standard assembly comprising the combination of a. a generally vertical standard, b. a base member, c. a connection member, d. means affixed to one of said base member or said standard for receiving said connection member to releasably attach said standard to said base member, an
1. An upright standard assembly comprising the combination of a. a generally vertical standard, b. a base member, c. a connection member, d. means affixed to one of said base member or said standard for receiving said connection member to releasably attach said standard to said base member, and having a generally vertical axis of connection extending through said connection member, said means comprising i. coupling means for receiving said connection member and for fracturing radially with respect to said axis of connection in response to an impact force applied to said standard in a generally horizontal direction generally normal to said axis of connection, said coupling means comprising a coupling body generally symmetrically disposed about any plane containing said axis of connection, said body having a first end in operative association with said base member, and a second end in operative association with said upright standard, at least one of said first and second end defining a connection member receiving opening therein, said connection member extending into said body a predetermined length along said axis of connection, said body having a plurality of grooves which define regions of minimum strength, said grooves surrounding said connection member receiving opening of said coupling body and extending from said connection member receiving end of said body parallel to said axis of connection and extending at least the length of said predetermined length of said connection member received by said body, and extending so that upon an impact force in a generally horizontal direction acting upon said standard, said coupling means will radially fracture to thereby release said connection member and thereby provide detachment of said standard from said base member, and e. means for initiating the radial fracture of said coupling body member, said means comprising (i) at least one fracture-initiating slot formed in at least one of said grooves and extending from the end of said coupling body defining said connection means receiving opening parallel to said axis of connection, said at least one slot extending a distance less than said predetermined length of said connection member received by said coupling body, and (ii) a radial fracture-initiating washer having at least one radially extending tooth formed thereon for receipt by said at least one fracture-initiating slot, said washer disposed between one of said generally vertical standard and said base member, and said coupling body, and said connection member extending through said washer. 2. An assembly as recited in claim 1 wherein said grooves in said coupling body extend the entire length of said body. 3. An assembly as recited in claim 1 wherein said washer is made of a material harder than the material of which said coupling body is made. 4. An assembly as recited in claim 3 wherein said washer is made of steel and said coupling body is made of aluminum. 5. An assembly as recited in claim 1 wherein said connection member is a threaded rod, and wherein said coupling body connection member receiving opening is threaded for receipt of said threaded rod connection member therein, and wherein no threads are provided in the portion of said connection member receiving opening of said coupling body from the end thereof to the termination of said at least one fracture-initiating slot. 6. An assembly as recited in claim 1 wherein said washer has a bore therein for receipt of said connection member therethrough, and wherein said bore has relatively smooth surfaces, no threading being provided therein. 7. An assembly as recited in claim 1 wherein a slot is provided in said coupling member associated with each groove therein. 8. An assembly as recited in claim 7 wherein said washer has one tooth corresponding to each of the slots formed in the coupling body with which it cooperates. 9. An assembly as recited in claim 7 wherein said washer has one tooth for every other slot formed in the coupling body with which it cooperates. 10. An assembly as recited in claim 1 wherein both said first and second ends of said coupling body have connection receiving openins therein, and wherein one connection member extends from said base member to said coupling body, and another connection member extends from said standard through said washer to said coupling body.
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