Patent Application
20220304466
The present invention relates to the field of furniture, and in particular to a slide rail assembly and a cabinet comprising the same.
Slide rails, also known as guide rails or slide ways, refer to hardware interconnecting parts that are fixed to a cabinet body of furniture and are used for drawers of the furniture or cabinet boards moving in or out. The slide rails are suitable for connection of wooden and steel drawers and cabinets, furniture, filing cabinets, bathroom cabinets, and the like.
At present, in the installation of a drawer, slide rails are mostly used in order to facilitate sliding of the drawer. With the improvement of people's living standards, more and more items need to be stored, and therefore the storage space of the drawer needs to be increased. The existing drawer usually adopts roller type slide rails, and rollers must have a certain height in order to ensure smoothness of sliding. Because the rollers are located at the bottom of the drawer, the drawer is raised and the installation space for the drawer is reduced, which results in a smaller drawer size that cannot meet higher storage requirements.
An objective of the present invention is to provide a slide rail assembly that can increase an installation space of a drawer and runs stably, quietly and smoothly.
In order to achieve the aforementioned objective, a slide rail assembly is provided in the present invention, which comprises a top rail, a middle rail and a bottom rail arranged in sequence from top to bottom.
The top rail defines a first cavity and is provided with a first opening communicated with the first cavity, the bottom rail defines a second cavity and is provided with a second opening communicated with the second cavity, and the first opening and the second opening are arranged opposite to each other; the middle rail comprises a first bending portion, a transition portion, and a second bending portion connected in sequence, and the first bending portion is inserted into the first cavity through the first opening, and the second bending portion is inserted into the second cavity through the second opening.
A first bracket is provided between the first bending portion and the top rail to separate the first bending portion and the top rail, and the first bracket is provided with a first hole in which a first rolling element in contact with the first bending portion and the top rail is provided; a second bracket is provided between the second bending portion and the bottom rail to separate the second bending portion and the bottom rail, and the second bracket is provided with a second hole in which a second rolling element in contact with the second bending portion and the bottom rail is provided.
The first bracket is provided with a first serrated edge along a length direction of the first bracket, the second bracket is provided with a second serrated edge along a length direction of the second bracket, a gear is provided between the first serrated edge and the serrated edge and meshes with the first serrated edge and the second serrated edge, and the gear is connected to the transition portion through a rotating shaft.
In some embodiments of the present invention, the first bracket is provided with three first rolling units, each being composed of a plurality of first rolling elements arranged along the length direction of the first bracket; the three first rolling units are arranged in an inverted triangle viewed from a cross-section direction of the first bracket, two first rolling units are arranged above the first bending portion, and another first rolling unit is arranged below the first bending portion.
The second bracket is provided with three second rolling units, each being composed of a plurality of second rolling elements arranged along the length direction of the second bracket; the three first rolling units are arranged in an upright triangle viewed from a cross-section direction of the second bracket, two second rolling units are arranged below the second bending portion, and another second rolling unit is arranged above the second bending portion.
In some embodiments of the present invention, the first bending portion, the transition portion, and the second bending portion together enclose a sliding cavity.
A side of the first bending portion facing away from the sliding cavity is provided with two first guide grooves extending along a length direction of the first bending portion, and the two first guiding grooves are respectively used for accommodating two first rolling elements of the two first rolling units arranged above the first bending portion; a side of the first bending portion facing toward the sliding cavity is provided with one first guide groove extending along the length direction of the first bending portion, and the one first guiding groove is used for accommodating one first rolling element of the another first rolling unit arranged below the first bending portion.
A side of the second bending portion facing away from the sliding cavity is provided with two second guide grooves extending along a length direction of the second bending portion, and the two second guiding grooves are respectively used for accommodating two second rolling elements of the two second rolling units arranged below the second bending portion; a side of the second bending portion facing toward the sliding cavity is provided with one second guide groove extending along the length direction of the second bending portion, and the one second guiding groove is used for accommodating one second rolling element of the another second rolling unit arranged above the second bending portion.
In some embodiments of the present invention, two ends of the first bending portion are respectively provided with a first protrusion and a second protrusion protruding away from the sliding cavity, and the first bracket is defined between the first protrusion and the second protrusion.
In some embodiments of the present invention, two ends of the second bending portion are respectively provided with a third protrusion and a fourth protrusion protruding away from the sliding cavity, and the second bracket is defined between the third protrusion and the fourth protrusion.
In some embodiments of the present invention, a rear end of the top rail is provided with a fifth protrusion protruding toward the first cavity, a front end of the top rail is provided with a regulating screw, and the first bracket is defined between the fifth protrusion and the regulating screw.
In some embodiments of the present invention, two ends of the bottom rail are respectively provided with a sixth protrusion and a seventh protrusion protruding toward the second cavity, and the second bracket is defined between the sixth protrusion and the seventh protrusion.
In some embodiments of the present invention, a front end of the top rail is further provided with a limiting member comprising a clamping portion adapted to the first cavity and a baffle provided at a front end of the clamping portion, and the clamping portion is inserted into the first cavity to realize connection between the limiting member and the top rail.
In some embodiments of the present invention, the bottom rail is provided with a mounting plate disposed vertically, and the mounting plate is provided with a plurality of connecting holes.
Another objective of the present invention is to provide a cabinet which comprises a cabinet body, one or more drawers, and one or more slide rail assemblies described above, the drawers are arranged inside the cabinet body; a bottom rail of the slide rail assembly is fixed to an inner side of the cabinet body, and a top rail of the slide rail assembly is fixed to a bottom surface of the drawer.
The slide rail assembly provided in the present invention has the following advantages compared with the prior art.
The top rail and the middle rail slide relative to each other through a first rolling element, and the middle rail and the bottom rail slide relative to each other through a second rolling element, so that the slide rail assembly can meet the requirements of drawing out and pushing in a drawer. The top rail defines the first cavity, the bottom rail defines the second cavity, the first bending portion of the middle rail is inserted into the first cavity, and the second bending portion of the middle rail is inserted into the second cavity, so that a height of the entire slide rail assembly is reduced, which reduces a space under the drawer occupied by the slide rail assembly, allowing more items stored in the drawer. In addition, the gear is provided between the first serrated edge of the first bracket and the second serrated edge of the second bracket and meshes with the first serrated edge and the second serrated edge, so that the top rail, the middle rail and the bottom rail can be linked, allowing more stable, quieter and smoother running of the slide rail assembly.
In addition, a cabinet is also provided in the present invention, and the cabinet has advantages of large storage capacity, low noise, good quality and the like, due to adopting the aforementioned slide rail assembly.
List of reference numerals: 1, top rail; 101, first cavity; 102, first opening; 103, fifth protrusion; 2, middle rail; 201, first bending portion; 2012, first protrusion; 2011, second protrusion; 202, transition portion; 203, second bending portion; 2031, second guide groove; 2032, third protrusion; 2033, fourth protrusion; 204, sliding cavity; 3. bottom rail; 301, second cavity; 302, second opening; 303, sixth protrusion; 304, seventh protrusion; 305, mounting plate; 4, first bracket; 401, first serrated edge; 5, first rolling element; 6, second bracket; 601, second serrated edge; 7, second rolling element; 8, gear; 9, rotating shaft; 10, regulating screw; 11, limiting element; 1101, clamping portion; and 1102, baffle.
Hereafter, embodiments of the present invention will be further described in conjunction with the drawings. The following embodiments are used to illustrate the present invention, but not to limit the scope of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
It should be understood that the terms “first”, “second”, etc. are used in the present invention to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, “first” information may also be referred to as “second” information, and similarly, “second” information may also be referred to as “first” information.
In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms “connected” and “connecting” should be understood in a broad sense, for example, it may refer to fixed connection, detachable connection, or integral connection; it may also refer to mechanical connection or electrical connection; it may also refer to direct connection or indirect connection through an intermediate medium; and it may refer to internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations. In addition, the orientations such as “top”, “bottom”, “inside”, and “outside” in the present invention are all descriptions based on the orientation of a slide rail assembly installed on a cabinet.
Refer to
With the aforementioned structure, the top rail 1 and the middle rail 2 slide relative to each other through a first rolling element 5, and the middle rail 2 and the bottom rail 3 slide relative to each other through a second rolling element 7, so that the slide rail assembly provided in the present invention can meet the requirements of drawing out and pushing in a drawer. The top rail 1 defines the first cavity 101, the bottom rail 3 defines the second cavity 301, the first bending portion 201 of the middle rail 2 is inserted into the first cavity 101, and the second bending portion 203 of the middle rail 2 is inserted into the second cavity 301, so that a height of the entire slide rail assembly is reduced, which reduces a space under the drawer occupied by the slide rail assembly, allowing more items stored in the drawer. In addition, the gear 8 is provided between the first serrated edge 401 of the first bracket 4 and the second serrated edge 601 of the second bracket 6 and meshes with the first serrated edge 401 and the second serrated edge 601, so that the top rail 1, the middle rail 2 and the bottom rail 3 can be linked, allowing more stable, quieter and smoother running of the slide rail assembly.
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Optionally, in this embodiment, the first rolling elements 5 and the second rolling elements 7 are preferably steel balls with good rolling property and high bearing capacity. Of course, in other embodiments, the steel balls can be replaced by cylindrical steel columns or other rolling parts.
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To sum up, a slide rail assembly is provided according to an embodiment of the present invention, which comprising a top rail, a middle rail and a bottom rail arranged in sequence from top to bottom. The slide rail assembly has the following advantages compared with the prior art.
1. The slide rail assembly has a lower height which reduces occupation of the space under the drawer and increases the installation space of the drawer, so that the size of the drawer can be larger, and more items can be stored, meeting higher storage requirements;
2. The top rail 1, the middle rail 2 and the bottom rail 3 can be linked, which makes the operation of the slide rail assembly more stable, quieter and smoother; and
3. The slide rail assembly is stressed evenly, which extends service life of the slide rail assembly and provide better stability and higher reliability during operation.
In another aspect, a cabinet is also provided according to an embodiment of the present invention, which comprises a cabinet body, one or more drawers, and one or more slide rail assemblies described above, the drawers are arranged inside the cabinet body. A bottom rail 3 of the slide rail assembly is fixed to an inner side of the cabinet body through a mounting plate 305, and a top rail 1 of the slide rail assembly is fixed to a bottom surface of the drawer through a fastening screw. The cabinet has advantages of larger storage capacity, lower noise, good quality, and so on, compared with the prior art.
In the description of the present invention, it should be understood that the orientations or position relationships indicated by the terms “upper”, “lower”, “left”, “right”, “top”, “bottom”, and the like, are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the described devices or elements must have specific orientations, are constructed and operated in specific orientations. Therefore, these terms cannot be understood as a limitation of the present invention.
The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and substitutions can be made without departing from the technical principle of the present invention, which improvements and substitutions should also fall within the protection scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202010866740.9 | Aug 2020 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2020/134730 | 12/9/2020 | WO |
