AUTOMATIC LOCKING/UNLOCKING APPARATUS FOR A DRAWER
First Claim
1. An automatic locking/unlocking apparatus for a drawer being applicable to be assembled on a fixed slide rail and a slidable slide rail of a drawer, the automatic locking/unlocking apparatus comprising:
- a drive element being formed on the slidable slide rail and including a drive portion;
a main body being fixed on the fixed slide rail and including a rail groove, a bar hole formed in a bottom surface of the rail groove, a deformation hole which is formed above the bar hole and will deform when being pressed, and an annular guide groove in communication with the rail groove, the annular guide groove including an internal annular surface and an external annular surface connected to a groove surface of the rail groove, the internal annular surface including a concave portion, the external annular surface including a protruding portion in alignment with the concave portion;
a slide block including a first protrusion to be pushed by the drive portion of the drive element, a second protrusion to be pushed by the drive portion of the drive element, a first protruding cylinder which is slidably disposed in the rail groove and engaged in/disengaged from the concave portion of the annular guide groove, and a second protruding cylinder which is slidably disposed in the rail groove; and
a spring including a first end connected to the main body, and a second end connected to the slide block.
1 Assignment
0 Petitions
Accused Products
Abstract
An automatic locking/unlocking apparatus for a drawer is applicable to be assembled on a fixed slide rail and a slidable slide rail of a drawer or on a drawer body and a drawer cabinet. The automatic locking/unlocking apparatus comprises a drive element disposed on the slidable slide rail or the drawer body, a main body fixed on the fixed slide rail or the drawer cabinet, a slide block slidably disposed on the main body, and a spring disposed between the main body and the slide block. By such arrangements, when the drawer is pulled by a large force, it can prevent the slide rails, the drawer body or the automatic locking/unlocking apparatus from being damaged
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Citations
10 Claims
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1. An automatic locking/unlocking apparatus for a drawer being applicable to be assembled on a fixed slide rail and a slidable slide rail of a drawer, the automatic locking/unlocking apparatus comprising:
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a drive element being formed on the slidable slide rail and including a drive portion; a main body being fixed on the fixed slide rail and including a rail groove, a bar hole formed in a bottom surface of the rail groove, a deformation hole which is formed above the bar hole and will deform when being pressed, and an annular guide groove in communication with the rail groove, the annular guide groove including an internal annular surface and an external annular surface connected to a groove surface of the rail groove, the internal annular surface including a concave portion, the external annular surface including a protruding portion in alignment with the concave portion; a slide block including a first protrusion to be pushed by the drive portion of the drive element, a second protrusion to be pushed by the drive portion of the drive element, a first protruding cylinder which is slidably disposed in the rail groove and engaged in/disengaged from the concave portion of the annular guide groove, and a second protruding cylinder which is slidably disposed in the rail groove; and a spring including a first end connected to the main body, and a second end connected to the slide block. - View Dependent Claims (2, 3, 4, 5)
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6. An automatic locking/unlocking apparatus for a drawer being applicable to be assembled on a drawer body and a drawer cabinet, comprising:
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a drive element being disposed on the drawer body and including a drive portion; a main body being fixed on the drawer cabinet and including a rail groove, a bar hole formed in a bottom surface of the rail groove, a deformation hole which is formed above the bar hole and will deform when being pressed, and an annular guide groove in communication with the rail groove, the annular guide groove including an internal annular surface and an external annular surface connected to a groove surface of the rail groove, the internal annular surface including a concave portion, the external annular surface including a protruding portion in alignment with the concave portion; a slide block including a first protrusion to be pushed by the drive portion of the drive element, a second protrusion to be pushed by the drive portion of the drive element, a first protruding cylinder which is slidably disposed in the rail groove and engaged in/disengaged from the concave portion of the annular guide groove, and a second protruding cylinder which is slidably disposed in the rail groove; and a spring including a first end connected to the main body, and a second end connected to the slide block. - View Dependent Claims (7, 8, 9, 10)
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Specification