Branch of Science Associated with the Invention Design engineering in the parts concerned with assembly of door/window/skylight sets.

Background of related art or science

Before the invention of this patent application, doors/windows/skylights in general production have characteristics as two main frames consisting of the sub-frame and the inner frame assembled together. The sub-frame has four sides assembled to form a rectangle and are attached to building walls where space is left for adding doors/windows/skylights. In the case of concrete building walls, the sub-frame is held to the building wall with screws. The inner frame has four sides assembled to form a rectangle. The combined length from every side is shorter than the sub-frame in order to fit in the sub-frame. The inside of the inner frame is equipped with a panel made from various materials attached. The inner frame or the panel may open-close or be a fixed panel to allow light through.

When assembling the sub-frame and the inner frame to create the door/window/skylight set, materials and devices are needed to hold both frames together such as hinges, wall brackets, wheels, screws, braces and silicone, etc. This equipment cause production costs to be higher. Panel installation and assembly is difficult and need tools and expert technicians because the sub-frame may have mistakes and distortions from warped concrete, causing the sub-frame to not have a right angle. In addition, drilling and cutting to install the equipment accompanying the panel may be in the wrong position and significant time is lost in turning, drilling and fitting these devices. In particular, onsite installation at high-rise buildings is difficult and may require technicians to have to descend from a zip line outside the building to assemble the panel and apply sealants or use heavy machinery such as cranes to help with installation.

Later on, many brands of finished sets of doors/windows/skylights with the sub- frame and the inner frames assembled before attachment to building walls for simpler and less time-consuming installation such as A-Plus, Wellington, TRUSTAND, RAS Aluminium and Window Asia. However, this type of assembly and installation has problems and disadvantages from how building wall space left for installing doors/windows/skylights must fit the sub-frame. If the space is small, concrete would have to be chiseled off. If the space is large, work has to be closed by sealing the concrete and frames with sealant materials, causing the work to be unattractive and allowing water to leak in.

The abovementioned problems in installing the aforementioned door/window/skylight set are solved by this invention, which is a door/window/skylight set with an inner frame installed to the sub-frame attached to the concrete wall with an automatic locking mechanism. The sub-frame is casted concrete and can be embedded in the building wall during concrete pouring. When the building’s construction is complete after the step of painting the building, the inner frame can be assembled to the sub-frame by pushing both frames to lock together without using any other tools, materials or devices to help with installation and assembly in the building. After assembly, the inner frame is equipped with a door leaf covering the sub- frame and causing concrete or paint stains to be invisible. In addition, silicone is not needed to seal gaps between the frame and building wall, making the door/window/skylight set in this invention attractive and water-proof.

Invention Characteristics and Objectives

The purpose of the door/window/skylight set with an inner frame installed to the sub- frame prepared on a concrete wall with an automatic locking mechanism is to reduce installation steps, materials and problems from assembly and installation along with enhancing effectiveness of the door/window/skylight in blocking sound, dust, smoke, resisting wind and preventing water from seeping at 100%.

The door/window/skylight set in this invention consists of an inner frame that is the panel and the sub-frame that is the frame held to the concrete wall by hooks on all four sides. The sub-frame and the inner frame consists of a number of locking mechanisms that are spurs, pins, bolt, groove or lock, one or a combination of the above. When the inner frame is assembled to the sub-frame, the locking mechanism installed on both frames will lock automatically without need for other materials or devices to hold and the frame of the panel will close the gap between the panel and the concrete, making sealant materials unnecessary. Full Disclosure of Invention

In Figure 1, the door/window/skylight set consisting of the inner frame (10) and the sub-frame (20) is held to the concrete building wall (5) with hooks on all four sides. In the wall of each side of both frames are locking mechanisms that are locks, spurs, pins, grooves or bolts, one or a combination depending on each type and size of that door/window/skylight.

In Figure 2, panel assembly can be done by tilting the inner frame (10) to fit one side of the sub-frame (20) for the outer side of the first side of the inner frame (11) to be close to the inner wall of the first side of the sub-frame (21) and pushing the fourth side of the inner frame (14) to fit the fourth side of the sub-frame (24). Locking mechanisms of both frames will lock automatically and both frames will become attached without need for any material or device to attach the panel. The inner frame will cover the gap between the panel and concrete. Thus, no sealant materials are needed to finish work and water is prevented from seeping in at 100 percent.

Figure 3 shows a profile of 4 sides of the panel (1) (2) (3) (4) assembled with locking mechanisms at various positions of each side.

Figure 4 shows attachment and assembly of the inner frame (10) and the sub-frame (20) at the outer wall of the first side of the inner frame (11) and the inner wall of the first side of the sub-frame (21) with characteristics such that the outer wall of the first side of the sub-frame (21) has stands equipped with a number of hooks (25) attached at the end for fitting in concrete (5).

The outer wall of the first side of the inner wall (11) is equipped with the first socket for rubber (31) and the second socket for rubber (32). Both sockets are at opposite positions and are adjacent to the inner wall of the first side of the sub-frame (21) to allow insertion of the rubber line (40) installed to create flexibility for movement of the inner frame and the sub-frame and for preventing water and air from seeping in.

Figure 5 shows attachment and assembly of the inner frame (10) and the sub-frame (20) at the outer wall of the second side of the inner frame (12) and the inner wall of the second side of the sub-frame (22) with characteristics such that the outer wall of the second side of the sub-frame (22) has stands which have a number of hooks (25) attached at the end for fitting in concrete (5). The outer wall of the second side of the inner frame (12) is equipped with a locking mechanism that is two-pronged hooks forming an angle similar to an arrowhead and extended out from the wall (61). These hooks can slide left or right to automatically seek an appropriate locking position when fitted with receiving two-pronged hooks (71) (72) extending from the inner wall of the second side of the sub-frame (22) at a supporting angle. The hooks of the inner frame and the sub-frame will attach and fit perfectly in a deadlock.

The inner wall of the second side of the outer frame (22) is equipped with a locking mechanism that is a spur (82) extended to fit the box cut to have a C-shape (81) on the outer wall of the second side of the inner frame (12). The inner wall of the second side of the sub-frame (22) is equipped with a locking mechanism that is a pin (84) extended from the wall to fit the receiving plate cut to have a key-shaped receiving groove (83) attached to the outer wall of the second side of the inner frame (12).

The inner wall of the second side of the outer frame (22) is equipped with a locking mechanism that is a Z-shaped bolt (86) held to the wall with a screw to fit a C-shaped receiving box (85) at the outer wall of the second side of the inner frame (12).

The outer wall of the second side of the inner wall (12) is equipped with a third socket for rubber (33) and the fourth socket for rubber (34). Both sockets are adjacent to the inner wall of the second side of the sub-frame (22) to allow insertion of the rubber line (40) installed to create flexibility for movement of the inner frame and the sub-frame and for preventing water and air from seeping in.

Figure 6 shows attachment and assembly of the inner frame (10) and the sub-frame (20) at the outer wall of the third side of the inner frame (13) and the inner wall of the third side of the sub-frame (23) with characteristics such that the outer wall of the third side of the sub-frame (23) has stands which have a number of hooks (25) attached at the end for fitting in concrete (5).

The outer wall of the third side of the inner frame (13) is equipped with a locking mechanism that is two-pronged hooks forming an angle similar to an arrowhead and extended out from the wall (62). These hooks can slide left or right to automatically seek an appropriate locking position when fitted with receiving two-pronged hooks (73) (74) extending from the inner wall of the third side of the sub-frame (23) at a supporting angle. The hooks of the inner frame and the sub-frame will attach and fit perfectly in a deadlock.

The inner wall of the third side of the outer frame (23) is equipped with a locking mechanism that is a spur (92) extended to fit the box cut to have a C-shape (91) on the outer wall of the third side of the inner frame (13).

The inner wall of the third side of the sub-frame (23) is equipped with a locking mechanism that is a pin (94) extended from the wall to fit the receiving plate cut to have a key-shaped receiving groove (93) attached to the outer wall of the third side of the inner frame (13).

The inner wall of the third side of the outer frame (23) is equipped with a locking mechanism that is a Z-shaped bolt (96) held to the wall with a screw to fit a C-shaped receiving box (95) at the outer wall of the third side of the inner frame (13).

The outer wall of the third side of the inner wall (13) has the fifth socket for rubber (35) and the sixth socket for rubber (36). Both sockets are adjacent to the inner wall of the third side of the sub-frame (23) to allow insertion of the rubber line (40) installed to create flexibility for movement of the inner frame and the sub -frame and for preventing water and air from seeping in.

Figure 7 shows attachment and assembly of the inner frame (10) and the sub-frame (20) at the outer wall of the fourth side of the inner frame (14) and the inner wall of the fourth side of the sub-frame (24) with characteristics such that the outer wall of the fourth side of the sub-frame (24) has stands which have a number of hooks (25) attached at the end for fitting in concrete (5).

The outer wall of the fourth side of the inner frame (14) is equipped with a locking mechanism that is a double hook (26) forming an angle that extends from the wall. This hook will fit with the receiving two-pronged hook (27) extending from the inner wall of the fourth side of the sub-frame (24) at a supporting angle. The hooks of the inner frame and the sub- frame will attach and fit perfectly.

The outer wall of the fourth side of the inner wall (14) has the seventh socket for rubber (37) and the eighth socket for rubber (38). Both sockets are adjacent to the inner wall of the fourth side of the sub-frame (24) to allow insertion of the rubber line (40) installed to create flexibility for movement of the inner frame and the sub-frame and for preventing water and air from seeping in.

Brief Description of Drawings Figure 1 shows the inner frame and the sub-frame held to the concrete wall.

Figure 2 shows directions of how the inner frame is fitted to the sub-frame.

Figure 3 shows the profiles of all four sides of the sub-frame and the inner frame assembled together with an automatic locking mechanism.

Figure 4 shows the profile of the assembled sub-frame and inner frame from the first side.

Figure 5 shows the profile of the assembled sub-frame and inner frame from the second side.

Figure 6 shows the profile of the assembled sub-frame and inner frame from the third side.

Figure 7 shows the profile of the assembled sub-frame and inner frame from the third side.

Best Invention Method

As mentioned in the section of the complete disclosure of the invention.