| PROTREND CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20110221318 | COLLAPSIBLE DRAWER - A collapsible drawer includes a left, a right, a rear, and a front wall being connected at respective lower edge to a left, a right, a rear, and a front edge of a bottom wall to be pivotally turnable relative to the bottom wall between an upright and a folded-down position. A left and a right hook are provided on an inner face of each of the front and the rear wall, and the left and right walls are formed on respective inner face with a front and a rear through hole corresponding to the left and right hooks on the front and rear walls, respectively. By extending the left and right hooks through the front and rear through holes on the left and right walls, the left and right walls are locked to between the front and rear walls in an upright position. | 09-15-2011 |
| 20110220602 | SHELF TO TWIN-POST SUPPORT ASSEMBLING STRUCTURE FOR SECTIONAL RACK - In a shelf to twin-post support assembling structure for sectional rack, the sectional rack includes at least two side support frames and at least two shelves, the shelves are provided at four corners with fastening connectors for engaging with front and rear twin-post supports of the side support frames, and the shelf to twin-post support assembling structure includes transverse metal bars connected to lower front and lower rear end of every shelf as well as a movable bracket rotatably connected to each of two lateral ends of the transverse metal bars. The movable brackets have upper ends connected to the transverse metal bars of the shelves and lower ends to the twin-post supports of the side support frames to provide a sideward support effect between the shelves and the side support frames, so that the sectional rack has increased structural strength without wobbling under a sideward external force applied thereto. | 09-15-2011 |
| 20100307998 | STOP WALL STRUCTURE FOR REMOVABLY MOUNTING TO A METAL-WIRE SHELF - A stop wall structure includes a front stop wall and two side stop walls for removably mounting to a front edge and two lateral edges of a metal-wire shelf for a sectional rack. The front stop wall is formed along a lower edge with a tongue portion and a plurality of clamping member spaced behind the tongue portion, so that a retaining space is formed between the tongue portion and the clamping members for engaging with a transverse front metal-bar set of the metal-wire shelf therein. The side stop walls each are provided along a lower edge with a plurality of C-shaped clamping members for each receiving and holding a transverse metal bar of the metal-wire shelf therein. With the stop wall structure mounted to the metal-wire shelf, articles positioned on the metal-wire shelf are protected against falling therefrom. | 12-09-2010 |
| 20100252521 | SECTIONAL RACK - A sectional rack, which can be assembled without using fastening elements and tools, includes rectangular vertical posts, foot members connected to lower front and lower rear ends of the vertical posts, hook members hooked to hanging holes provided on lateral faces of the vertical posts, and crossbars mounted to lower and higher positions between two adjacent vertical posts via the hook members. When the hook member is hooked to the hanging holes, an insertion slot is formed between the hook member and the lateral face of the vertical post. The crossbars are respectively formed on a lower portion at each of two lateral ends with an insertion section for firmly downward inserting into two insertion slots formed on two facing lateral faces of two adjacent vertical posts, so that the two vertical posts are supported by the crossbars to stably stand upright. | 10-07-2010 |
| 20100213346 | HANGER DEVICE - A hanger device includes an open-back metal housing having two sidewalls formed with a notch each, and a hook connected to a bottom thereof; a plastic seat embedded in the metal housing and having a transverse recess; a release control element vertically slidably connected to the plastic seat; and at least one tension spring located between the release control element and the plastic seat. The notches have outward and downward inclined upper edges and a vertical sectional shape the same as the recess. The hanger device can be firmly attached to a horizontal rail with the inclined upper edges of the notches tightly hooked to a rearward and downward inclined upper end surface of the horizontal rail and a projected block on a top of the release control element upward pushed by the tension spring into an open-bottomed channel at a lower end surface of the horizontal rail. | 08-26-2010 |
| 20090251031 | SECTIONAL CABINET - A sectional cabinet is assembled from a bottom, a top, a rear wall, a left, and a right wall. The bottom wall is provided on an upper side along rear, left, and right sides with a groove each for the lower sides of the rear, left, and right walls to insert therein, and the top wall is provided on a lower side along rear, left, and right sides with a groove each for the upper sides of the rear, left, and right walls to insert therein. Locating dowels are extended into dowel holes provided on the rear, left, and right sides of the bottom and top walls, as well as through holes provided on lower and upper sides of the rear, left, and right walls, so as to secure the rear, left, and right walls to the bottom and top walls. No tools are needed in assembling the sectional cabinet. | 10-08-2009 |
| 20090145897 | COLLAPSIBLE STORAGE CONTAINER - A storage container includes a rectangular frame formed from pivotally connected bottom, top, left, and right panels and is therefore collapsible into a flat state to have a largely reduced volume to enable convenient storage and transport thereof at reduced cost. Any two of the four panels that are adjacent to each other are provided at joints with tenons and corresponding mortises. When the rectangular frame is in a standup state with the corresponding tenons and mortises engaged with one another, the mutually pivotally turnably connected panels of the storage container are held in place to always keep the storage container in a stable and upright position. | 06-11-2009 |
