IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0774829
(1991-10-11)
|
| 우선권정보 |
JP-0105981 U (1990-10-11); JP-0105982 U (1990-10-11); JP-0270432 (1990-10-11) |
|
발명자
/ 주소 |
- Nagashima Masahiro (Tokyo JPX) Hayashi Kazuya (Tokyo JPX) Inaba Tadashi (Tokyo JPX)
|
| 출원인 / 주소 |
- Toso Company, Limited (Tokyo JPX 03)
|
| 인용정보 |
피인용 횟수 :
37 인용 특허 :
0 |
초록
▼
According to the present invention, there is provided an apparatus for lifting and tilting slats in a venetian blind, comprising: a head box; a rotating shaft; ladder drums rotating together with the shaft; drum holders for supporting the ladder drums; ladder rings of an open ring shape and fitted a
According to the present invention, there is provided an apparatus for lifting and tilting slats in a venetian blind, comprising: a head box; a rotating shaft; ladder drums rotating together with the shaft; drum holders for supporting the ladder drums; ladder rings of an open ring shape and fitted around each of the ladder drums; ladder cords being put on, and secured to, each of the ladder rings; lifting drums; lift cords, wound around each of the lifting drums; slats; and elements for stopping the rotation of the shaft. The apparatus is characterized in that the elements for stopping the rotation of the shaft comprises: a stopper holder on a head box; a drum stopper of a ring shape, axially not slidably, but rotatably, attached to the stopper holder; a stop ring of a ring shape, axially slidably, but not rotatably, attached to the stopper holder; and a spring for axially pressing the stop ring against the drum stopper, the drum stopper and the stop ring having teeth formed on the mutually opposite ends of the drum stopper and the stop ring so that the teeth are engageable with each other. The lifting drum and the drum stopper are engaged so that the drum stopper rotates together with the lifting drum. The lift cord is put on the stop ring, and is hung downward.
대표청구항
▼
Apparatus for lifting and tilting slats of a slat-ladder in a venetian blind, comprising: a head box (10); a rotating shaft (11) disposed on said head box so as to be rotatably driven; first and second ladder drums 36a, 36b) disposed along said shaft so as to rotate together with said shaft; first a
Apparatus for lifting and tilting slats of a slat-ladder in a venetian blind, comprising: a head box (10); a rotating shaft (11) disposed on said head box so as to be rotatably driven; first and second ladder drums 36a, 36b) disposed along said shaft so as to rotate together with said shaft; first and second drum holders (15a, 15b) fixed to said head box and respectively supporting said first and second ladder drums; first and second ladder rings (37a, 37b), each having an open ring shape and fitted around each of said first and second ladder drums; ladder cords (45a, 45b, 50), respectively put on, and secured to, each of said first and second ladder rings; lifting drums (12) rotating together with said shaft and having the outer circumference thereof screwed into said second drum holder; lift cords (28) respectively wound around each of said lifting drums; slats (30) supported by said ladder cords; and means for stopping the rotation of said shaft in the case where said lift cord is slackened; said means for stopping the rotation of said shaft, comprising: a stopper holder (16) fixed on said head box; a drum stopper (17) of a ring shape, axially not slidably, but rotatably, attached to said stopper holder; a stop ring (18) of a ring shape, axially slidably, but not rotatably, attached to said stopper holder; and a spring (23) for axially pressing said stop ring against said drum stopper; said drum stopper and said stop ring having teeth (24, 25) respectively formed on the mutually opposite ends of said drum stopper and said stop ring so that said teeth are engagable with each other; said lifting drum being disposed through the inside of said drum stopper and said stop ring; said lifting drum having said drum stopper engaged therewith utilizing an axial slot thereof so that said drum stopper rotates together with said lifting drum; each of said lift cords being put on said stop ring and being hung downward; whereby, said lift cord, when tightened, separates said stop ring from said drum stopper, resisting said spring force, and said lift cord, when slackened, enables said spring to press said stop ring toward said drum stopper to have teeth engaged with each other.
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