Opening apparatus
The opening device addresses the issue of thermal insulation in building entrance doors by using a dual-frame structure with a metal exterior and resin interior, along with strategically positioned mounting brackets, resulting in improved energy efficiency and hardware stability.
Patent Information
- Application Number
- JP2023179921
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-10-19
- Publication Date
- 2025-05-02
AI Technical Summary
Existing opening devices in buildings, such as front doors, lack effective thermal insulation, leading to heat loss and energy inefficiency.
The opening device incorporates a dual-frame structure comprising a metal frame on the outside and a resin frame on the inside, with mounting brackets soaked in the resin frame through notches, enhancing the attachment and insulation performance of the door hardware.
This configuration significantly improves heat insulation performance by minimizing cold air transmission and providing a strong, stable attachment for door hardware, resulting in enhanced energy efficiency and durability.
Smart Images
Figure 2025069964000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to an opening device to be installed in an opening of a building. [Background technology]
[0002] 2. Description of the Related Art There is a demand for improved thermal insulation in opening devices, such as entrance doors, that are installed at openings in buildings. Summary of the Invention [Problem to be solved by the invention]
[0003] In view of the above-mentioned circumstances, an object of the present invention is to improve the heat insulating properties of an opening device. [Means for solving the problem]
[0004] In order to achieve the above object, the opening device according to the invention described in claim 1 comprises a frame material, mounting hardware, and door hardware, the frame material having a metal frame material located on the outside of the room and a resin frame material located on the inside of the room, the resin frame material having a body mounting portion on the inside of the room, the mounting hardware being inserted into the resin frame material through a notch formed on the outer periphery of the resin frame material and having a body mounting portion on the inside of the room, the body mounting portion being fastened together to the body mounting portion of the resin frame material and the body, and the door hardware being attached to the mounting hardware. Effect of the Invention
[0005] The opening device according to the invention described in claim 1 comprises a frame, mounting hardware, and door hardware, and the frame has a metal frame located on the outside of the room and a resin frame located on the inside of the room, so that the thermal insulation performance can be improved. Furthermore, the mounting hardware is inserted into the resin frame through a notch formed on the outer periphery of the resin frame, has a frame mounting part on the inside of the room, and is fastened to the frame mounting part of the resin frame and the frame, and the door hardware is attached to the mounting hardware, so that the mounting strength of the door hardware can be increased and the mounting hardware can be installed well with fewer notches in the resin profile. [Brief description of the drawings]
[0006] [Figure 1] 3 is an enlarged vertical cross-sectional view showing the upper frame side of FIG. 2. [Diagram 2] 1 is a vertical cross-sectional view showing an embodiment of an opening device of the present invention. [Diagram 3] FIG. 2 is a cross-sectional view of the opening device. [Figure 4] FIG. 4 is an enlarged cross-sectional view showing the door end side of FIG. 3. [Diagram 5] FIG. 4 is an enlarged cross-sectional view of the hanging side of FIG. 3. [Figure 6] FIG. 4 is a cross-sectional view showing the state in which the door guard of the opening device is activated. [Figure 7] 1A is a perspective view of the mounting bracket for a door closer placed in the resin profile of the upper frame, viewed from the outer periphery; FIG. 1B is a perspective view of the same mounting bracket placed in the resin profile of the upper frame, viewed from the inner periphery; FIG. 1C is a perspective view of the same mounting bracket separated from the upper frame, viewed from the outer periphery; and FIG. 1D is a perspective view of the same mounting bracket placed in the resin profile of the upper frame, viewed from the inner periphery. [Figure 8] 1A is an oblique view of the mounting bracket for the door guard receiver placed in the resin profile of the vertical frame, as viewed from the inner circumference; FIG. 1B is an oblique view of the mounting bracket placed in the resin profile of the vertical frame, as viewed from the outer circumference; FIG. 1C is an oblique view of the mounting bracket separated from the vertical frame, as viewed from the inner circumference; and FIG. 1D is an oblique view of the mounting bracket placed in the resin profile of the vertical frame, as viewed from the outer circumference. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 6 show one embodiment of the opening device of the present invention. This opening device is applied to an entrance door installed at the entrance of a building such as a wooden house, and as shown in Figures 2 and 3, includes a frame 13 installed at an opening 12 in the building's framework, and a door 15 attached to the frame 13 with a hinge 14 and installed so as to open to the outside. The frame 13 is composed of an upper frame 1, a lower frame 16, and left and right vertical frames 2a, 2b. The door 15 is an insulated door with a heat insulating material disposed between the front and back surface materials made of steel plates.
[0008] As shown in Figure 2, a door closer (door hardware) 5 is attached to the upper part of the interior side of the door 15, straddling the upper frame 1, so that the door 15 that has been opened will automatically close slowly by the door closer 5. The door closer 5 is equipped with a link mechanism 18 that is connected to the upper frame 1 (effectively, to the frame 17). In addition, as shown in FIG. 3, a door guard 19 is attached to the vertical middle position on the door tip side of the interior side of the door 15, and as shown in FIG. 6, by hooking the door guard 19 onto a door guard receiver (door hardware) 6 provided on the vertical frame 2a, the range in which the door 15 can be opened can be limited to a narrow range.
[0009] As shown in FIG. 1, the upper frame 1 is composed of a metal frame material 7 located on the outside of the room and a resin frame material 8 located on the inside of the room. The metal frame material 7 is formed from an extruded aluminum alloy material and has a hollow portion 20 with a substantially rectangular cross section, and a frame mounting piece 22 formed at the indoor end so as to protrude outward and come into contact with the outdoor surface of the frame 17 and be fixed with a screw 21. Furthermore, the metal frame material 7 has a recess 23 formed on the indoor side into which the resin frame material 8 fits, and locking portions 24a, 24b for the resin frame material 8 are formed at the inner and outer peripheral positions of the indoor side.
[0010] The resin frame material 8 is formed from an extruded resin profile and has a main body portion 25 with a rectangular cross-section extending in the indoor-outdoor direction, a connection portion 26 with the metal frame material 7 provided on the outdoor side of the main body portion 25, and a door stop portion 27 protruding from the inner periphery of the main body portion 25. The main body 25 has partitions 28 provided therein, forming a plurality of hollow sections 29 arranged in the indoor / outdoor direction. The outer peripheral side wall 25a of the main body 25 extends toward the indoor side to form a body mounting section 9, which is fixed to the body 17 with screws 30 from the inner peripheral side. A gap 31 equivalent to the plate thickness of the mounting bracket 3, which will be described later, is formed between the outer peripheral side wall 25a of the main body 25 and the upper inner peripheral surface 17a of the body 17. The connecting portion 26 has an L-shaped piece 32 protruding toward the outer periphery and a hook-shaped piece 33 facing the inner periphery. The hook-shaped piece 33 is engaged with the engaging portion 24a on the inner periphery of the metal frame material 7, the L-shaped piece 33 is inserted into the recess 23 of the metal frame material 7 and its tip is engaged with the engaging portion 24b on the outer periphery of the metal frame material 7, and the L-shaped piece 33 is then screwed into the recess 23 of the metal frame material 7 with a screw 34 from the inside of the room, thereby connecting the resin frame material 8 to the metal frame material 7. A weatherstripping material 35 is attached to the door stop portion 27 facing the inside of the room, and the weatherstripping material 35 abuts against the indoor side of the door 15.
[0011] In this way, the upper frame 1 is composed of a metal frame material 7 located on the outside of the room and a resin frame material 8 located on the inside of the room. Moreover, by making the resin frame material 8 extend further outside than the body mounting piece 22 of the metal frame material 7, the metal frame material 7 is positioned as far away from the room as possible, which makes it difficult for cold air from outside to be transmitted inside the room, resulting in high insulation performance (the same applies to the vertical frames 2a, 2b described below).
[0012] As shown in Figure 1, the link mechanism 18 at the top of the door closer 5 has a door side arm 36 and a frame side arm 37, and a mounting bracket 3 is arranged inside the resin frame material 8 to attach the frame side arm 37 to the resin frame material 8 portion of the upper frame 1. The mounting bracket 3 is formed by bending a metal plate into a hat shape, and has a mounting piece 38 extending to the outside of the room, a mounting piece 11 extending toward the inside of the room, and a protrusion 39 formed to protrude toward the inner periphery between the mounting pieces 38, 11. The mounting bracket 3 is arranged such that the protrusion 39 is inserted into the hollow portion 29 of the resin frame material 8 through a notch 10 formed in the outer periphery sidewall 25a of the resin frame material 8 (see FIG. 7), and the lower surface of the protrusion 39 abuts against the upper surface of the inner periphery sidewall 25b of the resin frame material 8. As shown in Figure 1, the outdoor side mounting piece 38 of the mounting bracket 3 is fixed to the main body 17 from the inner side with a screw 40 (holes 49 through which the heads of the screws 40 pass are formed in the outer peripheral side wall 25a and the inner peripheral side wall 25b of the resin frame material 8, as shown in Figure 7), and the indoor side mounting piece 11 is fixed to the main body 17 together with the main body mounting portion 9 of the resin frame material 8 with a screw 30 from the inner side. The frame side arm 37 is fixed to the inner peripheral side surface of the resin frame material 8 with a screw 41 that is screwed into the protrusion 39 of the mounting bracket 3. Therefore, the frame side arm 37 is fixed to the frame 17 via the mounting bracket 3.
[0013] In this way, this opening device forms the indoor side portion of the upper frame 1 with the resin frame material 8, while fixing the frame side arm 37 of the door closer 5, which is subjected to a large force, to the frame body 17 via the mounting bracket 3, so that the frame side arm 37 can be firmly attached and does not become wobbly when the door 15 is repeatedly opened and closed. Moreover, by arranging the mounting bracket 3 so that it is embedded in the resin frame material 8 through the notch 10 formed on the outer periphery of the resin frame material 8, the mounting bracket 3 can be installed inside the resin frame material 8 with ease, and the mounting bracket 3 is not exposed to the outside, resulting in good design.
[0014] As shown in Figures 3 to 5, the left and right vertical frames 2a, 2b, like the upper frame 1, are composed of a metal frame material 7 located on the outside of the room and a resin frame material 8 located on the inside of the room, thereby improving the insulation performance. As shown in FIG. 4, the vertical frame 2a on the door end side (the right side when viewed from the inside of the room) has a mounting bracket 4 disposed inside a resin frame material 8 at a height position where the door guard receiver 6 is attached. The mounting bracket 4 is formed by bending a metal plate into a hat shape, and has a mounting piece 38 extending to the outside of the room, a mounting piece 11 extending toward the inside of the room, a convex portion 39 formed between the mounting pieces 38, 11 and protruding toward the inner periphery, and a support piece 42 extending toward the inner periphery flush with the outside surface of the convex portion 39. The mounting bracket 4 is arranged so that the convex portion 39 is inserted into the hollow portion 29 of the resin frame material 8 through the notch 10 formed in the outer peripheral side wall 25a and the inner peripheral side wall 25b of the resin frame material 8 (see FIG. 8), and the inner peripheral side surface of the convex portion 39 is flush with the inner peripheral side surface of the resin frame material 8. As shown in FIG. 4, the mounting piece 38 on the outside of the room of the mounting bracket 4 is fixed to the resin frame material 8 with a screw 43 from the outer peripheral side, and the mounting piece 11 on the inside of the room is fixed to the frame 17 together with the frame mounting portion 9 of the resin frame material 8 with a screw 30 from the inner peripheral side. In addition, the outdoor mounting piece 38 can also be fixed to the main body 17 from the inner periphery with a screw 40, similar to the mounting bracket 3 of the upper frame 1 shown in FIG. The door guard receiver 6 is fixed to the protrusion 39 of the mounting bracket 4 with a screw 41 from the inner periphery side. The support piece 42 of the mounting bracket 4 is adjacent to the indoor side of the door stop portion 27 of the resin frame material 8, and supports the door guard receiver 6 from the outdoor side.
[0015] In this way, in this opening device, the indoor side portion of the vertical frame 2a is formed from the resin frame material 8, while the door guard receiver 6, which is subjected to a large force, is fixed to the frame 17 via the mounting bracket 4, so that the door guard receiver 6 can be firmly attached and will not become wobbly with repeated use of the door guard 19. Moreover, by arranging the mounting bracket 4 so that it is swallowed into the resin frame material 8 through the notch 10 formed in the resin frame material 8, the mounting bracket 3 can be installed in the resin frame material 8 with ease, and most of the mounting bracket 4 is hidden by the resin frame material 8, resulting in a good design.
[0016] As shown in Fig. 5, the vertical frame 2b on the hanging side (left side when viewed from inside the room) has a reinforcing metal fitting 44 at the height where the hinge 14 is attached. The reinforcing metal fitting 44 is formed by bending a metal plate into an L-shaped cross section having a facing piece 45 and a facing piece 46, and the facing piece 45 is fixed to the main body 17 with screws 47 from the inner periphery side, and the facing piece 46 is fixed to the metal frame material 7 with screws 48 from the inside of the room. By providing the reinforcing metal fittings 44 in this manner, the area around the hinge 14 where the load of the vertical frame 2b is applied can be firmly fixed to the main body 17, thereby suppressing deformation of the vertical frame 2b.
[0017] As described above, this opening device is equipped with frame materials (upper frame 1, vertical frame 2a), mounting brackets 3, 4, and door hardware (door closer 5, door guard receiver 6), and the frame materials 1, 2a have a metal frame material 7 located on the outside of the room and a plastic frame material 8 located on the inside of the room (see Figures 2 and 3), which can improve the thermal insulation performance. Furthermore, the mounting brackets 3, 4 are inserted into the plastic frame material 8 through the notches 10 formed on the outer periphery of the plastic frame material 8, and have a frame mounting part (mounting piece) 11 on the inside of the room, which is fastened together with the frame mounting part 9 of the plastic frame material 8 and the frame 17, and the door hardware 5, 6 are attached to the mounting brackets 3, 4 (see Figures 1, 4, 7, 8), which can increase the mounting strength of the door hardware 5, 6, and can install the mounting brackets 5, 6 in a good fit with fewer notches 10 in the plastic shaped material 8. This opening device has mounting bracket 4 fixed to resin frame material 8 with screws 43 (see Figure 4), so that mounting bracket 4 can be fixed to frame material 2a in advance and frame 13 can be placed in and fixed into the main body opening 12 as usual, improving workability. The mounting brackets 3, 4 have body mounting portions (mounting pieces) 11, 38 on the outside and inside of the room, and are hat-shaped with mounting portions (convex portions) 39 for the door hardware 5, 6 in the middle in the indoor / outdoor direction (see Figures 1 and 4), which allows the door hardware 5, 6 to be firmly attached to the body 17 and can be manufactured inexpensively.
[0018] The present invention is not limited to the above-described embodiment. The cross-sectional shapes of the metal frame material and the resin frame material can be changed as appropriate. The shape and material of the mounting hardware can be changed as appropriate. The door hardware includes all hardware used for doors. The structure of the door is not important. [Explanation of symbols]
[0019] 1 Upper frame (frame material) 2a,2b Vertical frame (frame material) 3,4 Mounting bracket 5 Door closers (door hardware) 6 Door guard receiver (door hardware) 7 Metal frame material 8 Resin frame material 9 Body mounting part 10 Notch 11 Mounting piece (body mounting part)
Claims
[Claim 1] An opening device comprising a frame material, mounting hardware and door hardware, the frame material having a metal frame material located on the outside of the room and a resin frame material located on the inside of the room, the resin frame material having a body mounting portion on the inside of the room, the mounting hardware being inserted into the resin frame material through a notch formed on the outer periphery of the resin frame material and having a body mounting portion on the inside of the room, the body mounting portion being fastened together to the body mounting portion of the resin frame material and the body, and the door hardware being attached to the mounting hardware.