Opening device
The opening device enhances water resistance by using inclined fin pieces and a water-stop material to seal gaps, effectively preventing water ingress during floods.
Patent Information
- Application Number
- JP2024047398
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-10-07
AI Technical Summary
Existing opening devices in buildings lack sufficient water resistance to prevent water ingress during floods.
The opening device incorporates a lower frame with a horizontal tension material and a vertical frame with a vertical tension material, featuring fin pieces that extend from the inner to the outer periphery with an inclined inner side wall, and includes a water-stop material at the longitudinal end to enhance water resistance by increasing contact area and sealing gaps.
The design effectively prevents water ingress by enlarging the contact area of the fin pieces with the door and utilizing a water-stop material to block water flow, thereby improving overall water resistance.
Smart Images

Figure 2025147239000001_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] BACKGROUND ART Opening devices such as entrance doors that are installed at openings in buildings are required to have improved water resistance in order to prevent water from entering the room in the event of a flood or the like. 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 provide an opening device that is excellent in water resistance. [Means for solving the problem]
[0004] In order to achieve the above object, the opening device of the invention described in claim 1 comprises a lower frame and a vertical frame, the lower frame having a horizontal tight material in the longitudinal direction, the vertical frame having a vertical tight material in the longitudinal direction, the vertical tight material having a fin piece extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, the inner side wall being inclined towards the inner periphery, the horizontal tight material having a fin piece extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, a water-stop material being provided on the inner side surface of the longitudinal end, and the lower end of the vertical tight material abutting the water-stop material. [Effects of the Invention]
[0005] The opening device according to the invention described in claim 1 comprises a lower frame and a vertical frame, the lower frame having horizontal tension material in the longitudinal direction, the vertical frame having vertical tension material in the longitudinal direction, the vertical tension material having fin pieces extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, the inner side wall being inclined towards the inner periphery, the horizontal tension material having fin pieces extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, a water-stop material being provided on the inner side surface of the longitudinal end, and the lower end of the vertical tension material abutting the water-stop material increases the contact area of the fin pieces of the vertical tension material and prevents water from entering the room between the lower end of the vertical tension material and the horizontal tension material, thereby improving water resistance. [Brief explanation of the drawings]
[0006] [Figure 1] 1 is a cross-sectional view showing an embodiment of an opening device of the present invention. [Figure 2] FIG. 2 is a vertical cross-sectional view of the opening device. [Figure 3] FIG. 2 is a perspective view showing the opening device with the vertical frame and the lower frame separated. [Figure 4] FIG. 10 is a perspective view of a corner portion between a vertical frame and a lower frame of the opening device. [Figure 5] 10A and 10B are perspective views of the longitudinal end of the lower frame of the opening device, in which FIG. 10A shows the state before the waterproofing material is attached, and FIG. 10B shows the state after the waterproofing material has been attached. [Figure 6] This figure compares the difference in water flow with and without a water-stop material, where (a) shows the present invention (with water-stop material) and (b) shows a comparative example (without water-stop material). [Figure 7] This figure compares the difference in contact area of the fin pieces of the vertical tight material depending on whether or not the inner side wall of the vertical tight material is inclined, where (a) shows the present invention (when the inner side wall is inclined inward), and (b) shows a comparative example (when the inner side wall is not inclined). DETAILED DESCRIPTION OF THE INVENTION
[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 4 show one embodiment of an opening device of the present invention. This fitting is applied to an entrance door of a house, and as shown in Figures 1 and 2, it comprises a frame 8 attached to an opening in the frame, and a door 10 attached to the frame 8 with hinges 9 so as to open to the outside.
[0008] As shown in FIGS. 1 and 2, the frame 8 is formed by arranging an upper frame 11, a lower frame 1, and left and right vertical frames 2, 2, all of which are made of extruded aluminum alloy. As shown in Figure 2, the lower frame 1 has a door stop portion 12 that protrudes inward on the indoor side of the door 10, and a tension material holder 13a with an approximately C-shaped cross section is provided on the outdoor side of the door stop portion 12 facing the outside of the room, and a horizontal tension material 3 that is held by the tension material holder 13a and seals the gap with the door 10 is provided along the longitudinal direction of the lower frame 1. A groove 14 is provided on the upper surface of the door stop portion 12 along the longitudinal direction, and a resin slide 15 is attached and held in the groove 14, and the slide 15 covers the inner periphery of the door stop material holder 13a.
[0009] As shown in Figure 2, the horizontal door 3 includes a base 16 covering the exterior side of the door holder 13a, an engaging portion 17 integrally molded with the base 16 and engaging with the door holder 13, an inner wall 5 extending from the inner end of the base 16 toward the exterior, a fin 6 extending from the tip of the inner wall 5 toward the exterior and abutting the interior side of the door 10, an outer wall 18 extending from the outer end of the base 16 toward the exterior, and a connecting wall 19 connecting the outer wall 18 and the inner wall 5 to form a hollow space. The inner wall 5, fin 6, outer wall 18, and connecting wall 19 are made of a soft material, such as EPDM sponge, while the base 16 and engaging portion 17 are made of a harder material, such as EPDM rubber. The inner wall 5 is inclined 11° inward relative to the interior / exterior direction.
[0010] As shown in Figure 5, the lower frame 1 has a notch 20 formed in the thread 15 at its longitudinal end, and a square, plate-shaped water-stop material 7 is fitted into the notch 20 and glued across the inner peripheral side surface of the water-tight material holder 13a of the lower frame 1 and the inner peripheral side surface of the inner side wall 5 of the horizontal water-tight material 3. By attaching the water-tight material 7 in this manner, a flat surface consisting of the upper surface 7a of the water-tight material 7 is formed on the inner peripheral side of the longitudinal ends of the horizontal water-tight material 3 and the water-tight material holder 13a. The water-tight material 7 is made of soft rubber or the like, and is attached by adhesive with double-sided tape.
[0011] As shown in Figure 2, the upper frame 11, like the lower frame 1, has a door stop portion 22 that protrudes inward toward the interior side of the door 10, and a horizontal tension material 3 that seals the gap with the door 10 is attached along the longitudinal direction of the upper frame 11, held in a tension material holder 13c formed on the door stop portion 22.
[0012] As shown in Figure 1, the left and right vertical frames 2, 2 have a door stop portion 23 that protrudes inward on the indoor side of the door 10, and the door stop portion 23 has a waterproofing material holder 13b with an approximately C-shaped cross section that is provided facing the outdoor side, and a vertical waterproofing material 4 that is held by the waterproofing material holder 13b and seals the gap with the door 10 is provided along the longitudinal direction of the vertical frame 2.
[0013] As shown in Figure 1, the vertical tension material 4, like the horizontal tension material 3, has a base portion 16 that covers the outside of the tension material holder 13, an engagement portion 17 that is integrally molded with the base portion 16 and engages with the tension material holder 13, an inner side wall 5 that extends from the inner end of the base portion 16 to the outside of the room, a fin piece 6 that extends from the tip of the inner side wall 5 to the outer side and abuts the inside surface of the door 10, an outer side wall 18 that extends from the outer end of the base portion 16 to the outside of the room, and a connecting wall 19 that is connected to the outer side wall 18 and the inner side wall 5 to form a hollow portion. The inner peripheral side wall 5 of the vertical tension member 4 is inclined inward at a larger angle than the inner peripheral side wall 5 of the horizontal tension member 3. Specifically, the inner peripheral side wall 5 of the vertical tension member 4 is inclined inward at an angle of 29° relative to the indoor / outdoor direction. By inclining the inner peripheral side wall 5 of the vertical tension member 4 inward in this manner, the contact area of the fin piece 6 of the vertical tension member 4 with the door 10 can be increased, as will be described later.
[0014] As shown in Figures 3 and 4, the lower frame 1 and the vertical frame 2 are connected by abutting the end face 1a of the lower frame 1 against the lower inner side surface 2a of the vertical frame 2, and threading a screw (not shown) inserted from the outer periphery into the screw insertion hole 26 formed in the vertical frame 2 into the tapping hole 24 of the lower frame 1. As mentioned earlier, a water-stopping material 7 is attached to the longitudinal end of the bottom frame 1 so as to cover the inner periphery of the waterproofing material holder 13a and the horizontal waterproofing material 3. Therefore, when the bottom frame 1 and the vertical frame 2 are connected as described above, the waterproofing material holder 13b of the vertical frame 2 and the lower end of the vertical waterproofing material 4 abut against the flat upper surface 7a of the water-stopping material 7 (see Figure 4).
[0015] As described above, the water resistance of this opening device is improved by providing a water-stopping material 7 at the longitudinal end of the lower frame 1 and by inclining the inner side wall 5 of the vertical tight material 4 significantly toward the inner side. Figure 6(b) shows a comparative example in which no water-stop material 7 is provided at the longitudinal end of the bottom frame 1. Without the water-stop material 7, the lower end of the waterproofing material holder 13b of the vertical frame 2 abuts against the inner peripheral surface of the waterproofing material holder 13a of the bottom frame 1 in a so-called metal-to-metal manner, and a small gap is created between the lower end of the vertical waterproofing material 4 and the inner peripheral surface of the horizontal waterproofing material 3 because the inner peripheral side wall 5 of the horizontal waterproofing material 3 is inclined inward. Therefore, if the outside of the room is flooded, as shown by arrow 25 in the figure, water that has entered the waterproofing material holder 13b of the vertical frame 2 will flow into the room through the gap between the lower end of the vertical waterproofing material 4 and the inner peripheral surface of the horizontal waterproofing material 3. In contrast, as shown in Figure 6(a), this opening device has a water stop material 7 attached to the inner circumferential side of the longitudinal end of the lower frame 1, and the water sealant holder 13b of the vertical frame 2 and the lower end of the vertical water sealant 4 abut against the water stop material 7, so that, as shown by arrow 25 in the figure, the water in the water sealant holder 13b of the vertical frame 2 is blocked by the water stop material 7 and flows to the outside of the room. This prevents water from entering the room.
[0016] Figure 7(a) shows the vertical frame 2 and vertical tension material 4 of this opening device, and Figure 7(b) is a comparative example in which the inner side wall 5 of the vertical tension material 4 is not inclined. As shown in Figure 7(b), when the inner peripheral side wall 5 of the vertical tension material 4 is not inclined, the contact area (width of the contact surface) A between the fin piece 6 and the door 10 when the door 10 is closed is small, whereas when the inner peripheral side wall 5 of the vertical tension material 4 is inclined inward as shown in Figure 7(a), the contact area A between the fin piece 6 and the door 10 when the door 10 is closed becomes larger. This makes it possible to prevent water from entering the room between the door 10 and the vertical frame 2 in the event of flooding. In particular, as in this embodiment, the inner side wall 5 of the vertical tension material 4 is inclined more inward than the inner side wall 5 of the horizontal tension material 3, so that when the door 10 is closed, the contact area A of the fin piece 6 with the door 10 becomes even larger, thereby more reliably preventing water from entering between the door 10 and the vertical frame 2 in the event of flooding.
[0017] As described above, this opening device comprises a lower frame 1 and a vertical frame 2, the lower frame 1 having a horizontal waterproofing material 3 in the longitudinal direction, the vertical frame 2 having a vertical waterproofing material 4 in the longitudinal direction, the vertical waterproofing material 4 having a fin piece 6 extending from the tip of the inner side wall 5 located closer to the inner periphery to the outer periphery, the inner side wall 5 being inclined towards the inner periphery, the horizontal waterproofing material 3 having a fin piece 6 extending from the tip of the inner side wall 5 located closer to the inner periphery to the outer periphery, a water-stopping material 7 being provided on the inner side surface of the longitudinal end, and the lower end of the vertical waterproofing material 4 abutting against the water-stopping material 7 (see Figures 1 and 4), which increases the contact area A of the fin piece 6 of the vertical waterproofing material 4 and prevents water from entering the room between the lower end of the vertical waterproofing material 4 and the horizontal waterproofing material 3, thereby improving water resistance. The water-stopping material 7 is arranged across the waterproofing material holder 13a of the lower frame 1 and the inner side surface of the horizontal waterproofing material 3 (see Figure 5), which prevents water from entering between the lower end of the waterproofing material holder 13b of the vertical frame 2 and the waterproofing material holder 13a of the lower frame 1, further improving water resistance. The lower frame 1 has a longitudinal groove 15 on its inner side, and a notch 20 is provided at the longitudinal end of the groove 15, with a water-stopping material 7 fitted into the notch 20 (see Figure 5).This makes it easy to attach the water-stopping material 7 even with the groove 15 in place, and allows the water-stopping material 7 to form a flat surface, thereby improving the water-stopping properties of the corner between the vertical frame 2 and the lower frame 1. In this opening device, the inner side wall 5 of the vertical tight material 4 is inclined more inward than the inner side wall 5 of the horizontal tight material 3 (see Figures 1 and 2), which makes the contact area A of the fin piece 6 of the vertical tight material 4 with the door 10 even larger, thereby further improving water resistance.
[0018] The present invention is not limited to the above-described embodiments. The materials and cross-sectional shapes of the lower frame and vertical frame can be changed as appropriate. The materials and cross-sectional shapes of the horizontal and vertical tension members can also be changed as appropriate. The inner peripheral side wall of the horizontal tension member does not need to be inclined inward. The horizontal and vertical tension members may have a plurality of inner peripheral side walls in the inner and outer circumferential directions near the inner periphery, with a fin extending from the tip of any one of the inner peripheral side walls toward the outer periphery. For example, there may be three inner peripheral side walls near the inner periphery, with the tip of the innermost inner peripheral side wall being in contact with the door, and a fin being provided from the tip of the second inner peripheral side wall, and the outermost inner peripheral side wall being configured to support the fin from the inside of the room. The water-stop material may be of any shape, material, or installation method as long as it can prevent water from entering between the bottom end of the vertical seal material and the horizontal seal material. The door may be a sliding door. The present invention can be applied to any opening device having a frame, and is not limited to front doors, but can also be applied to, for example, back doors, windows, etc. Furthermore, the present invention is not limited to residential use, but can also be applied to opening devices for non-residential use (for example, warehouses, etc.). [Explanation of symbols]
[0019] 1 Bottom frame 2 Vertical Frame 3 Horizontal tension material 4 Vertical Tight Material 5 Inner side wall 6 fin pieces 7. Water-stopping materials
Claims
[Claim 1] An opening device comprising a lower frame and a vertical frame, the lower frame having horizontal tension material in the longitudinal direction, the vertical frame having vertical tension material in the longitudinal direction, the vertical tension material having a fin piece extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, the inner side wall being inclined towards the inner periphery, the horizontal tension material having a fin piece extending from the tip of the inner side wall located closer to the inner periphery to the outer periphery, a water-stop material being provided on the inner side surface of the longitudinal end, and the lower end of the vertical tension material abutting the water-stop material.