Blind without pull cord and raising device
AssigneeFresh Spring International, Inc.
InventorChih-Ming HSIEH
Life of this patent
Estimating the term…
Abstract
A blind without pull cord and a raising device configured to be connected to a movable side of a blind structure and including a housing, a retracting component, a resistance adjusting component and a raising cord. The resistance adjusting component includes a first rod and a second rod. The first rod is disposed on the housing. The second rod is movably disposed on the housing so as to be moved toward or away from the first rod. The retracting component is configured to raise or lower the movable side via the raising cord. The raising cord is in contact with the first rod and the second rod. When an end of the raising cord connected to the blind structure is pulled, the second rod is moved toward the first rod to allow the raising cord to be subjected to a greater resistance when being pulled.
Claims10
A blind without pull cord, comprising:
- a blind structure, having a fixed side and a movable side opposite to each other;
- and
- at least one raising device, comprising:
- a housing, connected to the fixed side;
- a retracting component, rotatably disposed in the housing;
- a resistance adjusting component, comprising a first rod and a second rod, wherein the first rod is disposed on the housing, and the second rod is movably disposed on the housing so as to be configured to be moved toward or away from the first rod;
- and
- a raising cord, wherein two opposite ends of the raising cord are connected to the blind structure and the retracting component, respectively, the raising cord is wound on the retracting component, the retracting component is configured to raise or lower the movable side via the raising cord, the raising cord is in contact with the first rod and the second rod, and when an end of the raising cord connected to the blind structure is pulled, the second rod is moved toward the first rod to allow the raising cord to be subjected to a greater resistance when being pulled.
A raising device, configured to be connected to a movable side of a blind structure, the raising device comprising:
- a housing;
- a retracting component, rotatably disposed in the housing;
- a resistance adjusting component, comprising a first rod and a second rod, wherein the first rod is disposed on the housing, and the second rod is movably disposed on the housing so as to be configured to be moved toward or away from the first rod;
- and
- a raising cord, wherein two opposite ends of the raising cord are connected to the blind structure and the retracting component, respectively, the raising cord is wound on the retracting component, the retracting component is configured to raise or lower the movable side via the raising cord, the raising cord is in contact with the first rod and the second rod, and when an end of the raising cord connected to the blind structure is pulled, the second rod is moved toward the first rod to allow the raising cord to be subjected to a greater resistance when being pulled.
Dependencies are inferred from the claim text.