A locking mechanism for detachable frames includes at least one detachable frame having at least one retaining through-hole; an edge connector having a left protrusion and a right protrusion, the left and right protrusions engaged with the retaining through-holes; and a locking retainer having a left retaining wall and a right retaining wall, the left and right retaining walls slidably coupled with the left protrusion and the right protrusion.

In one embodiment, a frame assembly includes a mitered frame base including a plurality of rail sections that are joined together in corners of the mitered frame base by a plurality of fasteners. Each rail section includes a first surface for receiving a layered image arrangement. The frame assembly also includes a plurality of mitered splines that are configured to snap-fittingly mate with the plurality of rail sections. Each spline having a second surface that faces the first surface of one of the respective rail sections for securing the layered image arrangement between the spline and the rail section. A corner gap is formed between ends of respective mitered splines in each corner of the frame assembly. A plurality of corner pieces are received within the corner gaps to complete the frame assembly, the plurality of corner pieces snap-fittingly engaging the plurality of rails sections.

A spline installation device for use with a spline/rail type frame to assemble the splines to the rails. The device including a base that defines a platform for receiving a frame subassembly; and a plurality of linkages that are disposed about the platform and coupled to the base. Each linkage is configured to move between a first position in which a fence bearing surface thereof is at an angle other than 90 degrees relative to the platform and a second position in which the fence bearing surface is set at an at least substantially 90 degree angle relative to the platform for locking and holding the frame subassembly in place. The linkages further being configured to receive a spline instillation tool for locking the splines in place relative to the rails.

Provided are a screen frame and a laser projection display device. The screen frame includes a plurality of side frames that are connected end to end, where each two adjacent side frames of the plurality of side frames are connected by at least two connectors, and the at least two connectors are connected to the each two adjacent side frames by fasteners; the at least two connectors include a first connector and a second connector, and an inserting direction of a fastener on the first connector is perpendicular to a plane where the screen frame is located, and an inserting direction of a fastener on the second connector is parallel to the plane where the screen frame is located. The present disclosure can realize accurate alignment and joining relatively easily.

The present invention relates to a frame comprising at least two first frame struts (1.1, 1.2) and at least two second frame struts (2.1, 2.2), wherein⋅the two first frame struts (1.1, 1.2) and/or the two second frame struts (2.1, 2.2) are of invariable length, ⋅the first frame struts (1.1, 1.2) are connected at their ends in each case to a second frame strut (2.1, 2.2) and the second frame struts (2.1, 2.2) are connected at their ends in each case to a first frame strut (1.1, 1.2), and —the first frame struts (1.1, 1.2) and the second frame struts (2.1, 2.2) are arranged at a right angle with respect to one another in a frame plane in an assembled position.

A hanging system and a method of hanging a support structure from a support surface. The hanging system may include a support structure and a hanging bracket for hanging the support structure from a support surface such as a wall. The support structure may include a mounting groove that accepts a portion of the hanging bracket to facilitate the coupling therebetween. The support structure may be able to slide side-to-side along the support surface while remaining coupled to the hanging bracket. The hanging system may alternatively, or additionally, include a reinforcement bracket. The reinforcement bracket may serve the dual purpose of holding the various mitered components of the support structure together and facilitating the hanging of the support structure from the support surface.

A method of assembling a frame which includes positioning a first frame member adjacent to a second frame member, the first and second frame members having channel with a mounting surface; providing a reinforcement bracket having a plate with a front surface and a rear surface, a first mounting element extending from the rear surface of the plate, and a second mounting element extending from the rear surface of the plate; applying an adhesive along at least one of: (1) the mounting surfaces of the frame members; and (2) the first and second mounting elements of the reinforcement bracket; and positioning the first and second mounting elements into the channels and pressing the first and second mounting elements against the mounting surfaces to adhesively attach the reinforcement bracket to the first and second frame members and thereby couple the first and second frame members together.

A hanging system and a method of hanging a support structure from a support surface. The hanging system may include a support structure and a hanging bracket for hanging the support structure from a support surface such as a wall. The support structure may include a mounting groove that accepts a portion of the hanging bracket to facilitate the coupling therebetween. The support structure may be able to slide side-to-side along the support surface while remaining coupled to the hanging bracket. The hanging system may alternatively, or additionally, include a reinforcement bracket. The reinforcement bracket may serve the dual purpose of holding the various mitered components of the support structure together and facilitating the hanging of the support structure from the support surface.

A connector is adapted for securing into a fixed position two frame members that are positioned to define a common miter joint and aligned slots to collectively define a single correspondingly-shaped connector opening. The connector includes a peripheral configuration corresponding to a peripheral configuration of the correspondingly-shaped opening. The connector may have a peripheral surface having on predetermined portions thereof a plurality of stepwise ridges adapted to contact with reduced friction only spaced-apart areas of sidewalls of the correspondingly-shaped opening. The connector may have at least one void in the connector to permit deformation sufficient to accommodate variations between the shape of the connector and the shape of the correspondingly-shaped opening. A method of using the connector is also disclosed.

Provided are a screen frame and a laser projection display device. The screen frame includes a plurality of side frames that are connected end to end, where a joint of each two of the plurality of side frames is provided with at least two connectors and receiving grooves corresponding to the at least two connectors in a one to one manner, and the at least two connectors have inserting portions extendable into the receiving grooves, at least one inserting portion of the inserting portions is provided with a telescopic engaging member, and a side wall of a receiving groove which is corresponding to an inserting portion having the engaging member is provided with a receiving hole corresponding to the engaging member; the engaging member is configured to extend into the receiving hole for positioning; and the inserting portions are connected to side walls of the receiving grooves by fasteners.