Opening-closing device
First Claim
1. An opening-closing device comprising:
- a fixed holder;
a fixed body connected to the fixed holder and including a fixed gear;
a movable holder;
a movable body connected to the movable holder and including a movable gear;
a conversion gear engaged with the fixed gear;
a relay gear engaged with the conversion gear and the movable gear;
a first locking plate coupled to the fixed gear, the first locking plate rotatably coupled to the fixed holder via a fixed shaft, the first locking plate further being pivotably coupled to the fixed shaft;
a first locking portion formed at one of the fixed body and the fixed holder; and
a first engaging portion projecting outwardly from the first locking plate in a radial direction of the fixed shaft, the first locking plate interacting with the first engaging portion along a radial side,wherein when the movable holder is opened from a closed position to a first predetermined angle with respect to the fixed holder the first engaging portion engages the first locking portion such that the movable holder is not openable beyond the first predetermined angle with respect to the fixed holder unless the movable holder is partially closed from the first predetermined angle, andwhen the movable holder is partially closed from the first predetermined angle the first engaging portion disengages from the first locking portion such that the movable holder is openable to a second predetermined angle greater than the first predetermined angle.
2 Assignments
0 Petitions
Accused Products
Abstract
An opening-closing device includes a fixed gear of a fixed body, a conversion gear engaged with the fixed gear, a movable gear of a movable body, and a relay gear engaged with the conversion gear and with the movable gear, all of which are attached to a locking plate. The movable body can be held at a predetermined angle with respect to the fixed body by making an engaging portion in the locking plate is contacted with a locking portion in the fixed body and by making the conversion gear move to another position when the movable body is opened at the predetermined angle with respect to the fixed body. Moving the conversion gear to another position makes it possible to perform opening and closing operations in a greater angle. Thus, the opening-closing device can have a simple structure and perform a variety of opening and closing operations.
75 Citations
11 Claims
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1. An opening-closing device comprising:
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a fixed holder; a fixed body connected to the fixed holder and including a fixed gear; a movable holder; a movable body connected to the movable holder and including a movable gear; a conversion gear engaged with the fixed gear; a relay gear engaged with the conversion gear and the movable gear; a first locking plate coupled to the fixed gear, the first locking plate rotatably coupled to the fixed holder via a fixed shaft, the first locking plate further being pivotably coupled to the fixed shaft; a first locking portion formed at one of the fixed body and the fixed holder; and a first engaging portion projecting outwardly from the first locking plate in a radial direction of the fixed shaft, the first locking plate interacting with the first engaging portion along a radial side, wherein when the movable holder is opened from a closed position to a first predetermined angle with respect to the fixed holder the first engaging portion engages the first locking portion such that the movable holder is not openable beyond the first predetermined angle with respect to the fixed holder unless the movable holder is partially closed from the first predetermined angle, and when the movable holder is partially closed from the first predetermined angle the first engaging portion disengages from the first locking portion such that the movable holder is openable to a second predetermined angle greater than the first predetermined angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification