Elements to be assembled to form temporary stair
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04G-027/00
E06C-001/00
E06C-007/08
출원번호
US-0341020
(1982-01-20)
우선권정보
BE-0887181 (1981-01-22)
발명자
/ 주소
Loix Gilbert (rue Bourgogne 5 Juprelle BEX)
인용정보
피인용 횟수 :
13인용 특허 :
0
초록▼
Elements to be assembled to form in situ a temporary stair, from a pair of planks (1,1′) or longitudinally sawn boards, or identical cross-section, intended for serving as stringers and which elements consist of steps (2), identical with one another, the steps being self-locking one by means of anot
Elements to be assembled to form in situ a temporary stair, from a pair of planks (1,1′) or longitudinally sawn boards, or identical cross-section, intended for serving as stringers and which elements consist of steps (2), identical with one another, the steps being self-locking one by means of another onto and against the planks (1,1′), with the exception of the top step which has to be wedged against these planks (1,1′); each step (2) rests, at each side at the front, on the upper edge of a plank and, at the rear, is brought against the lower edge of the plank by a pair of flats (14,14′) terminating in a hook (16) and mounted freely pivotal in the step placed next above.
대표청구항▼
A temporary stair, comprising a pair of planks of substantially identical cross-section, a plurality of steps substantially identical with one another, each step comprising at least two tubes extending between and connected to said planks, a plate engaging said tubes and forming a non-slip surface o
A temporary stair, comprising a pair of planks of substantially identical cross-section, a plurality of steps substantially identical with one another, each step comprising at least two tubes extending between and connected to said planks, a plate engaging said tubes and forming a non-slip surface of the step proper, a plurality of check plates, the tubes being formed with reduced diameter ends, the check plates being formed with openings, and the reduced diameter ends being slid into said openings, two of said tubes being separated by a distance exceeding the width of the planks, a plurality of bushings each having a length exceeding the thickness of a plank, the bushings being held on the tubes, a plurality of bearing members respectively mounted on said bushings, each bearing member having a length slightly greater than the thickness of the planks, a plurality of flats respectively pivotally mounted at one end on one of said bushings and formed at the other end with a hook-shaped portion engageable with the bushing of the step placed next below, in such a manner that each step rests, at each side at the front, on a bearing member, another bearing member being pulled against the lower edge of each plank by a flat connected to the step placed next above.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (13)
Wille Timothy G. (Canton GA), Adjustable stairstep system and process of assembling and installing same.
Nordmeyer Manfred (Schwarmstedt DEX) Grne Helmut (Schwarmstedt DEX), Machine for filling receptacles with flowable materials and method of cleaning the machine.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.