Patent Application
20130306808
The present invention relates to supporting frames which are used for desks, chairs, receiving boxes, storage tanks, kitchen cabinets, etc. with a simple structure which can be assembled easily and conveniently,
Generally, the frames of desks and chairs, supporting frames, receiving frames, kitchen cabinets are based on the environments locating the frames so that these furniture are made as an integral merchandize. However, recently, under new concepts, the frames are designed as assembled and foldable elements for selling and transportation. This is because the conventional structure has a large volume and thus they are not suitable for transportation. Furthermore, if parts of these frames are destroyed, these improved designs are helpful in updating. Furthermore, the foldable structure is suitable for stacking a plurality of basic units with a small volume.
However, the inventors have referred to many kinds of the conventional and newly designs, but the inventor discovers that these designs still have the defects of occupying large volumes, high cost, and large stacking volumes and the inventor discovers that these defects are improvable.
Accordingly, the primary object of the present invention is to provide a supporting frame, wherein the assembly work of the supporting frame can be performed by users; the elements of the present invention can be updated and maintained easily; the frames are assembled by basic units so that the cost can be downed and the stock required is low; all the elements can be detached and assembled easily and quickly so that the work for transportation is simplified; the structure of the present invention is concrete.
To achieve above object, the present invention provides a supporting frame which comprises four transversal supporting tubes, each of the transversal supporting tubes having two hollow ends; each two adjacent inner faces of each transversal supporting tube being formed with a screw hole; four longitudinal supporting tubes, each upper end of the longitudinal supporting tubes being a hollow end; moreover, each two adjacent inner faces of each longitudinal supporting tube being formed with respective screw hole; and a plurality of three-way internal connecting units; each three-way internal connecting unit having three inserting ends; each inserting end of the three-way internal connecting unit can be inserted into the hollow ends of the transversal supporting tube and the longitudinal supporting tube; thus by the longitudinal supporting tubes, the four transversal supporting tubes can be assembled as a rectangular upper frame and the four longitudinal supporting tubes being assembled as legs of the upper frame.
In order that those skilled in the art can further understand the present invention, a description will be provided in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.
With reference to
With reference to
four transversal supporting tubes 2, each of the transversal supporting tubes 2 having two hollow ends; moreover, each two adjacent inner faces of each transversal supporting tube 2 being formed with respective screw holes 21, 22;
four longitudinal supporting tubes 3, each upper end of the longitudinal supporting tubes 3 being a hollow end; moreover, each two adjacent inner faces of each longitudinal supporting tube 3 being formed with respective screw hole 31, 32;
a plurality of three-way internal connecting units 4; each three-way internal connecting unit 4 having three inserting ends; each inserting end of the three-way internal connecting unit 4 can be inserted into the hollow ends of the transversal supporting tube 2 and the longitudinal supporting tube 3; every two ends of the longitudinal supporting tube 3 being formed with an angle of 90 degrees; thus by the longitudinal supporting tubes 3, the four transversal supporting tubes 2 can be assembled as a rectangular upper frame and the four longitudinal supporting tubes 3 being assembled as legs of the upper frame as illustrated in
referring to
referring to
a plurality of enhancing fixing units 5; referring to
Advantage of the present invention will be described herein. The assembly work can be performed by users; the elements of the present invention can be updated and maintained easily; the frames are assembled by basic units so that the cost can be downed and the stock required is low; all the elements can be detached and assembled easily and quickly so that the work for transportation is simplified; and moreover, the structure of the present invention is concrete.
The present invention is thus described, it will be obvious that the same may be varied in many ways. For example, the slot 11, 12 can be formed directly to the pillar; the pushing head 46 of the tightening unit 4 can be formed like a saddle capable of sitting across the water blocking sheet for better stability. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
