Tubular spring hinge assembly
First Claim
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1. A tubular spring hinge assembly, comprising a first outer tube, a second outer tube, a central shaft, a torsion spring, and two regulators, wherein:
- the first outer tube has a side provided with a leaf, the second outer tube has a side provided with a leaf, the first outer tube is pivotally mounted on the second outer tube, the torsion spring is mounted in the first outer tube and the second outer tube, each of the two regulators is mounted on an outer end of the first outer tube and the second outer tube respectively, the central shaft is mounted in the torsion spring, and has two ends each extended through each of the two regulators, the torsion spring has two ends each inserted into each of the two regulators, each of the two regulators has a periphery provided with a pin member which is rested on the leaf of each of the first outer tube and the second outer tube; and
wherein;
a first separation tube is mounted in a first end of the first outer tube, a second separation tube is mounted in a first end of the second outer tube, the first separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the first outer tube, the second separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the second outer tube, so as to separate the first outer tube from the second outer tube, thereby preventing the first outer tube and the second outer tube from rubbing and producing noise, the first separation tube has a second end having an inner wall formed with an annular retaining portion, the second separation tube has a second end having an inner wall formed with an annular retaining portion, a connecting tube is mounted between the first outer tube and the second outer tube, and is mounted in the first separation tube and the second separation tube, the connecting tube has two ends each retained by the annular retaining portion of the first separation tube and the annular retaining portion of the second separation tube.
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Accused Products
Abstract
A tubular spring hinge assembly includes a connecting tube for connecting two tubes, and two separation tubes mounted between the connecting tube and each of the two tubes. Each of the two separation tubes is made of a wear-resistant plastic, thereby eliminating noise due to friction when the two tubes are rotated relatively by the door plate.
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Citations
19 Claims
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1. A tubular spring hinge assembly, comprising a first outer tube, a second outer tube, a central shaft, a torsion spring, and two regulators, wherein:
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the first outer tube has a side provided with a leaf, the second outer tube has a side provided with a leaf, the first outer tube is pivotally mounted on the second outer tube, the torsion spring is mounted in the first outer tube and the second outer tube, each of the two regulators is mounted on an outer end of the first outer tube and the second outer tube respectively, the central shaft is mounted in the torsion spring, and has two ends each extended through each of the two regulators, the torsion spring has two ends each inserted into each of the two regulators, each of the two regulators has a periphery provided with a pin member which is rested on the leaf of each of the first outer tube and the second outer tube; and
wherein;
a first separation tube is mounted in a first end of the first outer tube, a second separation tube is mounted in a first end of the second outer tube, the first separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the first outer tube, the second separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the second outer tube, so as to separate the first outer tube from the second outer tube, thereby preventing the first outer tube and the second outer tube from rubbing and producing noise, the first separation tube has a second end having an inner wall formed with an annular retaining portion, the second separation tube has a second end having an inner wall formed with an annular retaining portion, a connecting tube is mounted between the first outer tube and the second outer tube, and is mounted in the first separation tube and the second separation tube, the connecting tube has two ends each retained by the annular retaining portion of the first separation tube and the annular retaining portion of the second separation tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A tubular spring hinge assembly, comprising a base, and a pair of pivot structures, wherein, the base includes two main tubes, and a connecting plate mounted between the two main tubes, each of the pivot structures is mounted on one of the two main tubes;
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each of the pivot structures includes an outer tube, a central shaft, a torsion spring, a regulator, and a positioner, wherein;
the outer tube has a side provided with a leaf, the outer tube is pivotally mounted on one end of the main tube, the positioner is mounted on the other end of the main tube, the torsion spring is mounted in the outer tube and the main tube, the regulator is mounted on an outer end of the outer tube, the central shaft is mounted in the torsion spring and has two ends each extended through the regulator and the positioner;
the torsion spring has two ends each inserted into the regulator and the positioner respectively, the regulator has a base portion having a periphery provided with a pin member that is rested on the leaf;
a first separation tube is mounted in a first end of the outer tube, and a second separation tube is mounted in a first end of the main tube, the first separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the outer tube, the second separation tube has a first end having an outer wall formed with an annular separation flange rested on an end face of the first end of the main tube, so as to separate the outer tube from the main tube, thereby preventing the outer tube and the main tube from rubbing and producing noise, the first separation tube has a second end having an inner wall formed with an annular retaining portion, the second separation tube has a second end having an inner wall formed with an annular retaining portion, and a connecting tube is mounted in the first separation tube and the second separation tube, and has two ends each retained by the annular retaining portion of the first separation tube and the annular retaining portion of the second separation tube. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification