A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a ceiling inspection port that prevents interference between an inner frame and an outer frame, makes a gap in a joint part narrower, enables smooth opening/closing of the inner frame, and prevents sagging of the inner frame.SOLUTION: A ceiling inspection port includes a square outer frame 10 fitted on an opening 2a formed on a ceiling 2, a square inner frame 20 provided openably inside the outer frame 10, and an opening/closing mechanism 30 for opening/closing the inner frame 20 with regard to the outer frame 10. The opening/closing mechanism 30 includes: two rollers 31A, 31B that may roll in a longitudinal direction inside a pair of slide grooves 27 provided on an upper vertical wall 25 in the longitudinal direction of inner frame members 21 that face each other among the inner frame members 21 constituting the inner frame 20; and a slide bar 33 having the rollers 31A, 31B pivotally attached next to each other on an edge side and a rotary shaft 32 protruded on the other edge side, the rotary shaft engaging detachably and rotatably with a rotary shaft receiving part 40 provided on inner surfaces that face each other of the outer frame 10.SELECTED DRAWING: Figure 1
【課題】内枠と外枠の干渉を回避して目地部の隙間を狭くでき、内枠の開閉をスムーズに行えるようにし、かつ、内枠の垂れ下がりを防止できるようにした天井点検口を提供すること。【解決手段】天井２に形成される開口２ａに取り付けられる方形状の外枠１０と、外枠１０内に開閉可能に設けられる方形状の内枠２０と、外枠１０に対して内枠２０を開閉する開閉機構３０と、を具備する天井点検口において、開閉機構３０は、内枠２０を構成する内枠部材２１の対向する両内枠部材２１の長手方向に沿って上部垂直壁２５に設けられる一対のスライド溝２７内を長手方向に転動可能な２個のローラ３１Ａ，３１Ｂと、これらローラ３１Ａ，３１Ｂを一端側に並列して枢着し、他端側に、外枠１０の対向する両内側面に設けられた回動軸受け部４０に着脱及び回動可能に係合する回動軸３２を突設するスライドバー３３と、を具備する。【選択図】図１
PROBLEM TO BE SOLVED: To provide a ceiling inspection port that prevents interference between an inner frame and an outer frame, makes a gap in a joint part narrower, enables smooth opening/closing of the inner frame, and prevents sagging of the inner frame.SOLUTION: A ceiling inspection port includes a square outer frame 10 fitted on an opening 2a formed on a ceiling 2, a square inner frame 20 provided openably inside the outer frame 10, and an opening/closing mechanism 30 for opening/closing the inner frame 20 with regard to the outer frame 10. The opening/closing mechanism 30 includes: two rollers 31A, 31B that may roll in a longitudinal direction inside a pair of slide grooves 27 provided on an upper vertical wall 25 in the longitudinal direction of inner frame members 21 that face each other among the inner frame members 21 constituting the inner frame 20; and a slide bar 33 having the rollers 31A, 31B pivotally attached next to each other on an edge side and a rotary shaft 32 protruded on the other edge side, the rotary shaft engaging detachably and rotatably with a rotary shaft receiving part 40 provided on inner surfaces that face each other of the outer frame 10.SELECTED DRAWING: Figure 1
【課題】内枠と外枠の干渉を回避して目地部の隙間を狭くでき、内枠の開閉をスムーズに行えるようにし、かつ、内枠の垂れ下がりを防止できるようにした天井点検口を提供すること。【解決手段】天井２に形成される開口２ａに取り付けられる方形状の外枠１０と、外枠１０内に開閉可能に設けられる方形状の内枠２０と、外枠１０に対して内枠２０を開閉する開閉機構３０と、を具備する天井点検口において、開閉機構３０は、内枠２０を構成する内枠部材２１の対向する両内枠部材２１の長手方向に沿って上部垂直壁２５に設けられる一対のスライド溝２７内を長手方向に転動可能な２個のローラ３１Ａ，３１Ｂと、これらローラ３１Ａ，３１Ｂを一端側に並列して枢着し、他端側に、外枠１０の対向する両内側面に設けられた回動軸受け部４０に着脱及び回動可能に係合する回動軸３２を突設するスライドバー３３と、を具備する。【選択図】図１
CEILING INSPECTION PORT
天井点検口
NAGATANI ARIHIRO (author)
2017-11-30
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden