Heavy-Duty Automatic Return Buffering Slide

Abstract

A heavy-duty automatic return buffering slide comprising an external slide, two sliding assemblies, an internal slide, a limiting rail, a brake member and a pressure cylinder. The sliding assemblies are combined to two sides of the external slide, respectively, and the internal slide is provided with an engaging hook. Both sides of the internal slide are slidably combined between the sliding assemblies. The limiting rail is provided with a sliding groove and a lower countersink, which is continuous with and located lower than the sliding groove. The limiting rail is combined to the external slide. The brake member has one end pivoted to the pressure cylinder and a top provided with an engaging groove for cooperating with the engaging hook. The brake member is provided with two rollers movably disposed in the sliding groove. The pressure cylinder includes a protruding rod to push the brake member.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a drawer slide, and more particularly to a heavy-duty automatic return buffering slide.[0003]2. Description of the Prior Art[0004]Commonly, cabinets are widely used to store items and generally provided with plural drawers. In order to make the drawers move more smoothly and easily, the respective drawers are generally provided with a slide at each of two opposite sides thereof. However, this arrangement is only suitable for the light-duty drawers but not for the heavy-duty drawers. The slides which are applied to the heavy-duty drawers are normally arranged on the bottom of the drawers to bear a heavy load, and since the bottom of the drawer has a large space, the slide can be designed to be much thicker and stronger.[0005]As for the drawer with the heavy-duty slides, since closing the drawer is more difficult than pulling open the drawer, a slide capable of automatically closing the dr...

AI Technical Summary

Benefits of technology

[0008]The existing heavy-duty automatic return buffering slides each utilize a swing block and a spring to offer the automatic return function, but they suffer the advantages such as: shorter automatic return travel, and loud noise.

[0010]As compared to the conventional slide, the present invention has the following advantages:

[0011]The primary objective of the present invention is to provide a heavy-duty automatic return buffering slide, whose travel depends on the length of the rod body of the pressure cylinder, the length of the rod body can be approximately half of the length of the external slide, so that the automatic return travel is increased, and the manual travel is resultantly reduced, thus saving labor.

[0012]The secondary objective of the present invention is to provide a heavy-duty automatic return buffering slide, which utilizes the pressure cylinder to gradually release the pressure, so that the external slid and the drawer can be pushed slowly without causing any noise, thus avoiding of disturbing sleeping persons.

Problems solved by technology

The existing heavy-duty automatic return buffering slides each utilize a swing block and a spring to offer the automatic return function, but they suffer the advantages such as: shorter automatic return travel, and loud noise.

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