Glass plate fixing method and glass window
The glass plate fixing method and window design secure the glass plate within the frame using a pressing edge set and concealed screws to enhance burglary resistance, addressing security issues while maintaining ease of installation and cost-effectiveness.
Patent Information
- Application Number
- JP2024094972
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-12-24
- Estimated Expiration
- 2044-06-12
AI Technical Summary
Conventional glass window structures face security issues due to easy removal of retaining edges with sharp tools, compromising burglary resistance despite sturdy locks, and existing solutions increase manufacturing costs and operational complexity.
A glass plate fixing method and window design that secures the glass plate within the window frame using a pressing edge set, with lower, side, and upper edges fixed by screws, and convex-fitting portions to restrict movement, and concealed screw heads to enhance security without major structural changes.
Enhances burglary resistance by making it difficult to remove the glass plate without specialized tools, maintaining ease of installation and reducing visible fastening components, thus improving security without significant cost or operational burden.
Smart Images

Figure 2025186707000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a glass plate fixing method and a glass window that can improve crime prevention. [Background technology]
[0002] For security reasons, buildings that separate the interior and exterior of a building are equipped with doors equipped with locks at the openings that connect the interior and exterior. The same goes for windows. For example, sliding windows have a lock called a crescent lock that is installed on the interior side and can be locked by lifting the handle up and hooking it into a catch, making it impossible to open from the outside.
[0003] In glass windows, the glass pane is fixed to the window frame by fitting it into a glass fitting section formed on the inner periphery of the window frame and installing a rod called a retaining edge along the outer periphery of the glass pane. This retaining edge can be removed relatively easily with a tool with a sharp tip, allowing the glass pane to be replaced if it breaks or cracks.
[0004] Furthermore, the retaining edge is generally placed on the exterior side. The main reason for placing the retaining edge on the exterior side is to prevent raindrops that have entered the gap between the window frame and the glass pane from flowing indoors. In other words, if the retaining edge is placed on the exterior side, raindrops that have entered will accumulate downward due to gravity, but the bottom edge of the glass recess acts as a wall to prevent them from flowing indoors. On the other hand, if the retaining edge is placed on the interior side, the bottom edge of the glass recess will be placed on the exterior side of the glass pane, and will not be able to prevent raindrops from flowing indoors, so the raindrops that have entered will flow indoors.
[0005] However, when the retaining edge is installed on the exterior side, security becomes an issue. As mentioned above, the retaining edge can be easily removed with a tool with a sharp tip, which can result in the glass pane being removed. Therefore, even if a sturdy lock is installed on the window, there is a risk that burglars can easily break in due to the conventional structure.
[0006] To address this issue, the present inventor has developed various solutions. For example, in Japanese Patent Laid-Open Publication No. 2003-278452, the inventor invented and disclosed a glass plate mounting structure for a window sash in which a glass plate placed in a mounting portion is supported and fixed via a retaining edge, and in which at least 50% of the retaining edge components are provided only on the interior side (Patent Document 1). According to Patent Document 1, the glass plate mounting structure makes it impossible to remove the glass plate from the exterior side. [Prior art documents] [Patent documents]
[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-278452 Summary of the Invention [Problem to be solved by the invention]
[0008] However, the invention described in Patent Document 1 has a significantly different structure from conventional window sashes, which results in a significant burden in terms of manufacturing costs. Furthermore, glass plate replacement work must be carried out on both the indoor and outdoor sides, which increases the burden on workability. For these reasons, the invention has not yet become widely used.
[0009] The present invention has been made to solve the above-mentioned problems, and aims to provide a glass plate fixing method and a glass window that can improve crime prevention performance without making major changes to the conventional structure or imposing a large burden on workability. [Means for solving the problem]
[0010] The glass plate fixing method of the present invention is a glass plate fixing method for fixing a glass plate to a window frame in order to solve the problem of improving security performance without making major changes to the conventional structure or imposing a large burden on workability, and comprises fitting the glass plate into the inner peripheral edge of the window frame, placing a lower pressing edge at the lower part of the inner peripheral edge of the window frame to press down the lower part of the glass plate, placing side pressing edges on both the left and right sides of the inner peripheral edge of the window frame to press down both the left and right sides of the glass plate and press down the lower pressing edge, and placing an upper pressing edge at the upper part of the inner peripheral edge of the window frame to press down the upper part of the glass plate and press down both the left and right side pressing edges.
[0011] In addition, as one aspect of the present invention, in order to solve the problem of further improving security by fastening and fixing the upper clamping edge, which must be removed first when removing the glass plate, only the upper clamping edge installed at the top of the inner peripheral edge of the window frame may be fixed to the window frame with screws.
[0012] The glass window of the present invention solves the problem of improving security performance without making major changes to conventional structures or imposing a large burden on workability, and is a glass window comprising a glass plate, a window frame into which the glass plate is fitted, and a push-edge set that is installed on the peripheral edge of the fitted glass plate and fixes the glass plate to the window frame, the window frame having a glass fitting part on its inner peripheral edge into which the glass plate is fitted, the push-edge set including a lower pressing edge that presses down on the lower part of the glass plate, and a lower pressing edge that presses down on the lower part of the glass plate. It is composed of a pair of left and right side pressing edges that press the left or right sides of the glass plate, and an upper pressing edge that presses the top of the glass plate, and the lower pressing edge is formed to a length dimension equivalent to the left and right width of the lower edge of the glass insertion portion, the side pressing edges are formed to a length dimension obtained by subtracting the up and down width of the lower pressing edges from the up and down width of the side edges of the glass insertion portion, and the upper pressing edge is formed to a length dimension obtained by subtracting the left and right widths of both the left and right side pressing edges from the left and right width of the upper edge of the glass insertion portion.
[0013] In addition, as one aspect of the present invention, in order to solve the problem of increasing the fixing force and security of the glass plate by restricting the forward and backward movement of the pressing edge set, the inner surface of the window frame may be provided with a concavely formed concave receiving portion, and the abutment surface of the pressing edge set that abuts against the inner surface of the window frame may have a convexly formed convex fitting portion that can be fitted into the concave receiving portion.
[0014] Furthermore, as one aspect of the present invention, in order to solve the problem of increasing security by fastening and fixing the upper pressing edge, which must be removed first when removing the glass plate, and hiding the head of the screw, the underside of the upper pressing edge is provided with a concave head storage section formed in a concave shape that can store the head of the screw, and the upper pressing edge is fixed to the window frame by the screw that passes upward from the concave head storage section, and the concave head storage section that stores the head of the screw may be filled with adhesive. [Effects of the Invention]
[0015] According to the present invention, it is possible to improve the security performance without making any major changes to the conventional structure or imposing a large burden on the workability. [Brief explanation of the drawings]
[0016] [Figure 1] 1 is a front view showing an embodiment of a glass window according to the present invention. [Figure 2] FIG. 2 is a perspective view showing a window frame in the present embodiment. [Figure 3] FIG. 2 is a partially enlarged cross-sectional view taken along line AA in FIG. [Figure 4] FIG. 2 is a partially enlarged cross-sectional view taken along line BB in FIG. [Figure 5] 3 is a schematic view showing a step of fitting a glass plate in one embodiment of the glass plate fixing method according to the present invention. FIG. [Figure 6] 10A to 10C are schematic diagrams illustrating a process of installing a lower pressing edge in the present embodiment. [Figure 7]10A to 10C are schematic diagrams illustrating a process of installing left and right side pressing edges in this embodiment. [Figure 8] 10A to 10C are schematic diagrams illustrating a process of installing an upper pressing edge in the present embodiment. [Figure 9] 10A and 10B are schematic diagrams showing a process of fixing the upper pressing edge with screws in the present embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0017] Hereinafter, an embodiment of a glass window according to the present invention will be described with reference to the drawings.
[0018] 1, the glass window 1 of this embodiment includes a glass plate 2, a window frame 3 into which the glass plate 2 is fitted, a retaining edge set 4 that secures the fitted glass plate 2, and screws 5 that secure an upper retaining edge 43 to the window frame 3. Each component will be described below.
[0019] The glass plate 2 is a plate material made of glass and is formed into a rectangular shape in this embodiment. The glass plate 2 may be made of a single sheet of glass, or may be so-called double glazing, which has multiple sheets of glass arranged in layers and has a desiccant or the like disposed on the periphery to enhance heat insulation performance.
[0020] The window frame 3 is a frame body, also called a stile, into which the glass sheet 2 is fitted and which holds the glass sheet 2 by sandwiching it with the pressing edge set 4. As shown in Figures 1 and 2, the window frame 3 in this embodiment is formed in the shape of a rectangular frame with an opening in the center and outer dimensions larger than the glass sheet 2 but inner dimensions smaller than the glass sheet 2. A glass fitting portion 31 into which the glass sheet 2 is fitted is formed on the inner peripheral edge of the window frame 3.
[0021] As shown in Fig. 2, the glass fitting portion 31 is configured such that the inner peripheral edge of the window frame 3 is recessed from the front to the rear (from the front side to the back side in Fig. 2) to a size that allows the glass plate 2 to be fitted in. The front-to-rear depth of the glass fitting portion 31 is deeper than the thickness of the glass plate 2, and is formed to a depth that allows the pressing edge set 4 to be installed in front of the fitted glass plate 2.
[0022] Furthermore, in this embodiment, the inner peripheral surface of the window frame 3 is formed with recessed receiving portions 32 for fitting with the protruding fitting portions 44 formed on the pressing edge set 4. Specifically, the recessed receiving portions 32 are formed on the inner peripheral surface of the window frame 3 in portions that correspond to the bottom surface, left and right side surfaces, and top surface of the glass fitting portion 31, and as shown in Fig. 3, are recessed along the front surface of the glass plate 2 fitted into the glass fitting portion 31, and are formed to a depth that allows the protruding fitting portions 44 formed on the side pressing edges 42, etc., to fit therein.
[0023] In this embodiment, one concave receiving portion 32 is formed on each of the lower surface, left and right side surfaces, and upper surface of the inner circumferential surface, but this configuration is not limited to this and the concave receiving portion 32 may be formed of multiple holes or multiple grooves.
[0024] The clamping edge set 4 is used to secure the glass plate 2 fitted into the window frame 3, and in this embodiment, as shown in Figure 1, it has a lower clamping edge 41 that presses the lower part of the glass plate 2, a pair of left and right side clamping edges 42, 42 that press the left or right side of the glass plate 2, and an upper clamping edge 43 that presses the upper part of the glass plate 2.
[0025] The lower pressing edge 41 is a pressing edge for pressing down the lower part of the glass plate 2, and in this embodiment is made of a long piece of resin material with a length dimension corresponding to the left-right width of the lower edge of the glass fitting portion 31. In addition, the abutment surface that abuts against the window frame 3, i.e., the underside of the lower pressing edge 41, is formed with a convex fitting portion 44 that is formed in a convex shape so that it can fit into the concave receiving portion 32.
[0026] The pair of left and right side pressing edges 42, 42 are pressing edges for pressing the left or right side of the glass plate 2, and are formed from a long resin material, similar to the lower pressing edge 41. The side pressing edges 42 are formed to a length dimension obtained by subtracting the vertical width of the lower pressing edge 41 from the vertical width of the side edge of the glass fitting portion 31, and are installed after the lower pressing edge 41 is installed, so that they press the glass plate 2 and also hold the lower pressing edge 41 downward.
[0027] Furthermore, a convex fitting portion 44 that can fit into the concave receiving portion 32 is formed on the contact surface of the side pressing edge 42 that contacts the window frame 3. Specifically, the side pressing edge 42 installed on the left side has a convex fitting portion 44 formed on its left side surface, and the side pressing edge 42 installed on the right side has a convex fitting portion 44 formed on its right side surface.
[0028] The upper pressing edge 43 is a pressing edge for pressing down the upper part of the glass plate 2, and is formed of a long resin material, like the other pressing edges 41, 42. The upper pressing edge 43 is formed to have a length dimension obtained by subtracting the left and right widths of both the left and right side pressing edges 42, 42 from the left and right width of the upper edge of the glass fitting portion 31. By installing the upper pressing edge 43 after installing both the left and right side pressing edges 42, 42, the upper pressing edge 43 presses down the upper part of the glass plate 2 and also presses down both the left and right side pressing edges 42, 42 toward the sides.
[0029] Furthermore, on the upper surface of the upper pressing edge 43, which is the contact surface that contacts the window frame 3, a convex fitting portion 44 is formed that is convex so as to be able to fit into the concave receiving portion 32.
[0030] 1 and 4, the underside of the upper pressing edge 43 is provided with concave head storage sections 45 formed in a concave shape capable of storing the heads 51 of the screws 5. In this embodiment, the concave head storage sections 45 are formed in a total of three locations: approximately at the center position on the left and right of the upper pressing edge 43, and at positions symmetrical to the left and right of the center position.
[0031] The screw 5 is a threaded member for fixing the upper retaining edge 43 to the window frame 3, and has a head 51 that can be fitted with a Phillips head screwdriver, flat head screwdriver, hex wrench, or the like. As shown in Figure 4, the screw 5 in this embodiment is fastened upward from a concave head storage portion 45 formed on the underside of the upper retaining edge 43, thereby penetrating the upper retaining edge 43 and being fastened to the window frame 3. The concave head storage portion 45 in which the head 51 of the screw 5 is stored is filled with adhesive 52.
[0032] Next, the glass plate fixing method of this embodiment and the function of each component in the glass window 1 of this embodiment will be described.
[0033] 5 to 9, the glass plate fixing method of this embodiment mainly includes a glass plate fitting step of fitting the glass plate 2 into the glass fitting portion 31, a press edge installation step of installing the press edge set 4, and a screw fixing step of fixing the upper press edge 43 with the screws 5. Each step will be described below.
[0034] In the glass plate fitting step, the glass plate 2 is fitted into a glass fitting portion 31 formed on the inner peripheral edge of the window frame 3, as shown in FIG.
[0035] In the clamping edge installation process, clamping edge sets 4 are installed on the bottom, both left and right sides, and top of the glass plate 2 to fix the glass plate 2. In this embodiment, the installation is performed in the order of the bottom clamping edge 41, the left and right side clamping edges 42, 42, and the top clamping edge 43.
[0036] Specifically, as shown in Figure 6, the lower retaining edge 41 is installed by sliding it from above downward so that the convex fitting portion 44 formed on the underside fits into the concave receiving portion 32 formed on the inner peripheral surface of the window frame 3. The installed lower retaining edge 41, together with the glass fitting portion 31, clamps the lower part of the glass plate 2 and fixes it to the window frame 3. In this embodiment, because the convex fitting portion 44 is fitted into the concave receiving portion 32 on the inner peripheral surface of the window frame 3, movement of the lower retaining edge 41 in the front-to-rear direction is restricted, and the glass plate 2 can be firmly fixed.
[0037] Next, both the left and right side pressing edges 42, 42 are installed on the left and right side edges of the glass fitting portion 31. The order in which the side pressing edges 42 are installed is not particularly limited, and they may be installed from right to left, from left to right, or simultaneously on the left and right.
[0038] In this embodiment, similar to the lower pressing edge 41, the convex fitting portion 44 formed on the side surface is installed by sliding it left or right from the inside of the window frame 3 so as to fit into the concave receiving portion 32 formed on the inner surface of the window frame 3.
[0039] The installed side pressing edges 42 clamp and fix the sides of the glass plate 2 together with the glass fitting portion 31. In this embodiment, the convex fitting portion 44 fits into the concave receiving portion 32 on the inner peripheral surface of the window frame 3, so that the movement of the side pressing edges 42 in the front-to-rear direction is restricted, just like the lower pressing edge 41, and the glass plate 2 can be firmly fixed.
[0040] In addition, the side pressing edge 42 is formed with a length dimension obtained by subtracting the vertical width of the lower pressing edge 41 from the vertical width of the side edge of the glass insertion portion 31, and by being installed on the side edge of the glass insertion portion 31, its upper end engages with the upper edge of the glass insertion portion 31, and its lower end presses the lower pressing edge 41 downward.
[0041] As a result, the movement of the lower pressing edge 41 in the front-to-rear direction is restricted by the convex fitting portion 44 fitted into the concave receiving portion 32, and the movement in the up-and-down direction is restricted by the side pressing edges 42, so that the lower pressing edge 41 cannot be removed unless both the left and right side pressing edges 42 have been removed.
[0042] Next, the upper pressing edge 43 is placed on the upper edge of the glass fitting portion 31. In this embodiment, as with the other pressing edges 41 and 42, the upper pressing edge 43 is placed by sliding it from below upward so that the convex fitting portion 44 formed on the upper surface fits into the concave receiving portion 32 formed on the inner peripheral surface of the window frame 3.
[0043] The installed upper pressing edge 43 clamps and fixes the upper part of the glass plate 2 together with the glass fitting portion 31. In this embodiment, the convex fitting portion 44 is fitted into the concave receiving portion 32 of the window frame 3, so the upper pressing edge 43, like the other pressing edges 41 and 42, can be firmly fixed in the front-to-rear direction.
[0044] In addition, the upper pressing edge 43 is formed with a length dimension obtained by subtracting the left and right widths of both the left and right side pressing edges 42, 42 from the left and right widths of the side edges of the glass insertion section 31, and by being installed on the upper edge of the glass insertion section 31, it presses the left and right side pressing edges 42, 42 in the left and right directions, respectively.
[0045] As a result, the movement of both the left and right side pressing edges 42, 42 in the front-to-rear direction is restricted by the convex fitting portion 44 fitted into the concave receiving portion 32, and the movement in the left-to-right direction is restricted by the upper pressing edge 43, so they cannot be removed unless the upper pressing edge 43 is removed first.
[0046] Next, the upper retaining edge 43 is fixed to the window frame 3 with a screw 5. Specifically, the screw 5 is driven upward from the concave head storage portion 45 of the upper retaining edge 43, penetrating the upper retaining edge 43 and fastening it to the window frame 3. The screw 5 is fastened until the head 51 is stored in the concave head storage portion 45. Then, to prevent the screw 5 from being easily removed, an adhesive 52 is filled into the concave head storage portion 45 in which the head 51 is stored, as shown in Figure 4.
[0047] According to the present embodiment as described above, the following actions and effects can be achieved. 1. The glass window 1 is composed of a glass plate 2, a window frame 3, and a pressing edge set 4, which are the same as those of conventional products, and the problem can be solved by devising the length of the pressing edge set 4 and its installation order, so there is no need to make major changes to the conventional structure or impose a significant burden on workability, resulting in a practical configuration that is easy to spread. 2. Since the glass plate 2 cannot be removed from the window frame 3 unless the order in which the retaining edge set 4 is removed is known, crime prevention can be improved. 3. The upper clamping edge 43, both left and right side clamping edges 42, 42, and the lower clamping edge 41 must be removed in that order, and since the upper clamping edge 43, which is difficult to reach from the ground, must be removed first, it is difficult to remove without using a stand or the like. 4. The upper retaining edge 43 is fixed to the window frame 3 with screws 5, making it more difficult to remove. 5. By storing the head 51 of the screw 5 in the recessed head storage portion 45, the fact that the upper pressing edge 43 is fixed by the screw 5 can be made less noticeable. 6. The adhesive 52 filled in the recessed head storage portion 45 prevents the screws 5 from being removed and also prevents deterioration of the screws 5 due to rust or the like. 7. The retaining edge set 4 is restricted from moving in the front-rear direction by the convex fitting portion 44, so that the glass plate 2 can be firmly fixed. 8. Even if an attempt is made to remove the pressing edges 41, 42, 43 by pulling them in the front-rear direction, they cannot be removed because the protruding fitting portions 44 restrict movement in the front-rear direction.
[0048] The glass plate fixing method and glass window according to the present invention are not limited to the above-described embodiment and can be modified as appropriate. For example, a waterproof sealant or packing may be applied to the gap between the glass plate 2 and the window frame 3 or the gap between the glass plate 2 and the retaining edge set 4. [Explanation of symbols]
[0049] 1. Glass window 2 glass plates 3. Window Frame 4 Presser foot set 5 bis 31 Glass insertion part 32 Concave receiving part 41 Lower presser edge 42 Side pressing edge 43 Upper presser edge 44 Convex fitting part 45 Concave head compartment 51 Head
Claims
1. A glass plate fixing method for fixing a glass plate to a window frame, comprising: The glass plate is fitted into the inner peripheral edge of the window frame; a lower pressing edge is placed at the lower part of the inner peripheral edge of the window frame to press down the lower part of the glass plate; The side pressing edges are respectively installed on both the left and right sides of the inner peripheral edge of the window frame to press down both the left and right sides of the glass plate and to press down the lower pressing edge; A method for fixing a glass plate, comprising: placing an upper pressing edge on the upper part of the inner peripheral edge of the window frame to press down the upper part of the glass plate and pressing down both the left and right side pressing edges toward the sides.
2. The glass plate fixing method according to claim 1 , wherein only the upper pressing edge provided on the upper part of the inner peripheral edge of the window frame is fixed to the window frame with screws.
3. A glass window having a glass plate, a window frame into which the glass plate is fitted, and a push edge set installed on a peripheral edge of the fitted glass plate to fix the glass plate to the window frame, the window frame has a glass fitting portion at an inner peripheral edge into which the glass plate is fitted, The pressing edge set is composed of a lower pressing edge that presses the lower part of the glass plate, a pair of left and right side pressing edges that press the left or right side of the glass plate, and an upper pressing edge that presses the upper part of the glass plate, The lower pressing edge is formed to have a length dimension corresponding to the left-right width of the lower edge of the glass fitting portion, The side pressing edges are formed to have a length dimension obtained by subtracting the vertical width of the lower pressing edges from the vertical width of the side edges of the glass fitting portion, The glass window, wherein the upper pressing edge is formed to have a length dimension obtained by subtracting the left and right widths of both the left and right side pressing edges from the left and right width of the upper edge of the glass fitting portion.
4. The window frame has an inner peripheral surface provided with a recessed receiving portion formed in a recessed shape, The glass window according to claim 3, wherein the contact surface of the edge set that contacts the inner peripheral surface of the window frame has a convex fitting portion formed convexly so as to be able to fit into the concave receiving portion.
5. The lower surface of the upper pressing edge is provided with a concave head storage portion formed in a concave shape capable of storing the head of a screw, 4. The glass window according to claim 3, wherein the upper pressing edge is fixed to the window frame by the screw that penetrates upward from the concave head storage portion, and the concave head storage portion that stores the head of the screw is filled with adhesive.
Citation Information
Patent Citations
Glass plate mounting structure for window sash
JP2003278452A