Door, window, corner, and wall crack prevention kit structure

The simplified door window corner wall crack prevention kit structure addresses manufacturing and assembly challenges by enhancing tear resistance and stress resistance at frame corners through L-shaped members and resistance pieces, preventing microcracks and reducing costs.

JP2026086131AInactive Publication Date: 2026-05-26林志成 +1
View PDF 7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
林志成
Filing Date
2024-11-14
Publication Date
2026-05-26
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Conventional door and window corner wall crack prevention kits are costly to manufacture, inconvenient to assemble, and prone to microcracks during seismic events due to complex structures requiring spot welding and multiple components.

Method used

A simplified door window corner wall crack prevention kit structure with L-shaped crack prevention members and resistance pieces that increase gripping area and rigidity, altering stress transmission to prevent microcracks by blocking external forces.

Benefits of technology

Enhances tear resistance and stress resistance at door and window frame corners, simplifies assembly, reduces manufacturing costs, and saves storage and transportation costs by integrating resistance pieces with crack prevention members.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026086131000001_ABST
    Figure 2026086131000001_ABST
Patent Text Reader

Abstract

This provides an improved structure for door window corner wall crack prevention kits. [Solution] Multiple crack prevention members 1, which are installed at intervals, are fixed together by passing a fixing rod 2 through them, and a resistance piece 4 corresponding to the shape of the notch of the crack prevention member is connected to at least one side of the notch 13 of the crack prevention member. The installation of the resistance piece increases the rigidity of the connection and improves the tear resistance strength of the foremost part. Furthermore, when stress generated by earthquakes, etc., is transmitted to the resistance piece, the direction of stress transmission is altered by being blocked by the resistance piece, reducing and dispersing the effect of the external force corresponding to the force end. In this way, the stress resistance performance and tear resistance performance of the foremost part of the wall structure that receives forces at the corners of doors and window frames are improved, and the foremost surface that receives forces at the corners of doors and window frames is effectively protected from cracks, microcracks, etc., when subjected to forces by earthquakes or other factors.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of building members, and more particularly, to a structure of a door and window corner wall crack prevention kit.

Background Art

[0002] All windows are attached to the walls of conventional buildings. When a building undergoes thermal expansion, cooling contraction, or vibration due to the shaking of an earthquake, cracks are likely to occur at the corner of the window frame on the wall, and rainwater may penetrate into the room through the cracks. Therefore, the inventor has conducted research and development to increase the crack resistance strength of the wall structures at the door and window corners and to prevent situations where cracks and microcracks occur on the wall when subjected to earthquakes or other external forces. As conventional patent documents, for example, Patent Document 1 below discloses a "window corner structure wall crack prevention member", Patent Document 2 discloses a "window corner wall surface crack prevention kit fixing structure", Patent Document 3 discloses a "door and window corner wall surface crack prevention kit structure", Patent Document 4 discloses a "door and window corner wall surface crack prevention kit structure (VI)", and Patent Document 5 discloses a "door and window corner wall surface crack prevention kit structure (VII)", etc., which are door and window corner wall surface crack prevention kit structures.

[0003] Furthermore, after installing the above-mentioned door window corner wall crack prevention kit structure, the doors and windows that will be retained in the wall structure are molded, and after attaching the door and window frames to the doors and windows, the gaps that occur between them are filled with cement mortar to form a caulking seal. When seismic stress is transmitted to the caulking seal, microcracks are likely to occur in the caulking seal and its surface plaster layer. Therefore, Patent Document 6, which the present inventors have researched and developed, discloses a "door window corner wall crack prevention kit structure (vIII)" (see Figure 7). The door window corner wall crack prevention kit structure (m) mainly consists of a plurality of crack prevention members (m1) installed at intervals, which are fixed by a fixing rod (m2) passing through them, two reinforcing members (m31) of a reinforcement unit (m3) are connected to both ends of the fixing rod (m2), and an impact absorbing member (m32) is installed between the two reinforcing members (m31). Each of the two reinforcing members (m31) has a caulking-filled reinforcing section (m33) molded into it. When the door window corner wall crack prevention kit structure is installed and used, the caulking-filled reinforcing section (m33) is connected to the caulking at the corners of the door and window frames. The installation of the caulking-filled reinforcing section (m33) of the reinforcing unit (m3) improves the tear resistance strength of the wall structure and caulking at the corners of the door and window frames, and has the effect of protecting against the occurrence of microcracks in the caulking and plaster layer at the corners of the door and window frames during an earthquake. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Taiwan Patent Application No. 650468 [Patent Document 2] Taiwan Registered Utility Model No. M582057 [Patent Document 3] Taiwan Patent Application Publication No. 695106 [Patent Document 4] Taiwan Registered Utility Model No. M594053 [Patent Document 5] Taiwan Registered Utility Model No. M592012 [Patent Document 6] Taiwan Patent Application Publication No. 708882 [Overview of the project] [Problems that the invention aims to solve]

[0005] However, as can be seen from the inventor's research history mentioned above, the inventor has used the conventional technology described above in practice and has found room for further improvement, dedicating himself to making the product even easier to use and more practical. The "Door Window Corner Wall Crack Prevention Kit Structure (8)" described in Patent Document 6, which the inventor researched and developed in advance, achieves the effect of increasing the tear resistance strength to the wall structure and caulking filling at the corners of doors and window frames by installing a reinforcement unit (m3). However, the reinforcement unit (m3) is mainly composed of two reinforcing members (m31) and an impact absorbing member (m32), which is not only costly to manufacture, but also requires spot welding to fix the impact absorbing member (m32) and the crack prevention member (m1) in the notches of multiple crack prevention members (m1) when assembling them, and the other two reinforcing members (m31) also need to be inserted through to fix to both ends of the multiple fixing rods (m2) of the crack prevention member (m1). For this reason, it is inconvenient to assemble and use and is not ideal. Therefore, the inventors believed that the above-mentioned shortcomings could be improved, and after diligent research, arrived at the present invention, which effectively improves the above-mentioned problems through a rational design.

[0006] This invention has been made in view of the above circumstances, and one of its objectives is to solve the problems described above. That is, this invention provides an improved door window corner wall crack prevention kit structure. In other words, the main objective is to provide a door window corner wall crack prevention kit structure that improves upon the "Door Window Corner Wall Crack Prevention Kit Structure (8)" of Patent Document 6, simplifies the structure, reduces manufacturing costs, makes installation convenient, and effectively prevents the occurrence of microcracks in wall structures at the corners of doors and window frames. [Means for solving the problem]

[0007] To achieve the above objective, an improvement to the door window corner wall crack prevention kit structure in one embodiment of the present invention is that multiple crack prevention members, which are mainly installed at intervals, are fixed by passing a fixing rod through them, and a resistance piece corresponding to the shape of the notch of the crack prevention member is connected to at least one side of the notch of the crack prevention member. By installing the resistance piece, the gripping area with the wall structure at the corner of the door and window frame is increased, the rigidity of the connection is enhanced, and the tear resistance strength of the foremost end of the wall structure that receives force at the corner of the door and window frame is improved. When stress generated by an earthquake or the like is transmitted to the resistance piece, the direction of stress transmission is altered by being blocked by the resistance piece, resistance to the action of the external force is generated, and the action of the external force corresponding to the force end is reduced and dispersed. By doing so, the stress resistance and tear resistance performance of the foremost point of the wall structure at the corners of doors and window frames is improved, and the foremost surface layer of the wall structure at the corners of doors and window frames, which is subjected to forces, is effectively protected from cracks and microcracks when subjected to forces due to earthquakes or other factors.

[0008] Other objects, structures, and effects of the present invention will become apparent from the following section on embodiments of the invention. [Brief explanation of the drawing]

[0009] [Figure 1] This is an overall inclined view showing an improved door window corner wall crack prevention kit structure according to one embodiment of the present invention. [Figure 2] This is a front view showing a crack prevention member according to one embodiment of the present invention. [Figure 3] This is an inclined view showing a crack prevention member according to one embodiment of the present invention. [Figure 4] This figure shows the door window corner wall crack prevention kit structure according to one embodiment of the present invention in use, installed on a door frame and window frame. [Figure 5] This figure shows the door window corner wall crack prevention kit structure according to one embodiment of the present invention in use, attached to reinforcing bars. [Figure 6] This is a top view showing a door window corner wall crack prevention kit structure according to one embodiment of the present invention in a state of use, attached to reinforcing bars. [Figure 7] This is an inclined diagram showing the structure of a conventional door window corner wall crack prevention kit. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described in detail below. However, the present invention is not limited thereto, and various modifications are possible within the scope described. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included within the technical scope of the present invention.

[0011] Figure 1 is an overall inclined view showing an improved door window corner wall crack prevention kit structure according to one embodiment of the present invention. The improved door window corner wall crack prevention kit structure according to the present invention mainly includes the following components. The configuration of each component will be described below.

[0012] Multiple crack prevention members (1) are arranged in a manner that corresponds to one another and is spaced apart in the front and back directions. Each crack prevention member (1) comprises a first sheet portion (11) provided in the vertical direction and a second sheet portion (12) provided in the horizontal direction. The first sheet portion (11) is vertically connected to the second sheet portion (12) so as to be integral with it, forming an L-shape. One side of the first sheet portion (11) and the second sheet portion (12) jointly forms an L-shaped notch portion (13). The end edges (111) and (121) of the first sheet portion (11) and the second sheet portion (12) are adjacent to the notch portion (13), and two adjacent fixing holes (14) are provided along the length direction of the end edges (111) and (121). The crack prevention member (1) is provided with multiple hollow holes (15).

[0013] Multiple fixing rods (2) are inserted through the first sheet portion (11) and the second sheet portion (12) of the multiple crack prevention members (1) so that each fixing rod (2) is fixed to two corresponding fixing holes (14). Two virtual vertical lines (161) are defined in the first sheet portion (11) passing through the two fixing rods (2) in the longitudinal direction, and two virtual horizontal lines (162) are defined in the second sheet portion (12) passing through the two fixing rods (2) in the transverse direction. The two vertical lines (161) and the two horizontal lines (162), together with the end edges (111) and (121) of the first sheet portion (11) and the second sheet portion (12), form a work area (16), and at least one positioning hole (17) is provided in the work area (16).

[0014] At least one positioning rod (3) is inserted through a corresponding positioning hole (17) of a plurality of the crack prevention members (1). The positioning rod (3) is an iron nail, and a tip (31) and a stop end (32) are formed at opposite ends of the positioning rod (3), and the rod wall of the positioning rod (3) and the hole wall of the positioning hole (17) are in contact with each other. Referring also to Figure 2, the present invention further provides that one side of the L-shaped notch (13) jointly formed by the first sheet portion (11) and the second sheet portion (12) of the crack prevention member (1) is defined as a first side (112) and a second side (122), respectively, and a resistance piece (4) is further installed. The resistance piece (4) is located at the notch (13) of the crack prevention member (1), and comprises a first sheet (41) provided in the vertical direction and a second sheet (42) provided in the horizontal direction, with the first sheet (41) being vertically connected to the second sheet (42) so as to be integral with it. The side edge of the first sheet (41) of the resistance piece (4) is connected to the first side edge (112) of the adjacent first sheet portion (11) of the crack prevention member (1), and the side edge of the second sheet (42) of the resistance piece (4) is connected to the second side edge (122) of the adjacent second sheet portion (12) of the crack prevention member (1). The resistance piece (4) is provided with a plurality of through holes (43). In such a case, as shown in Figure 3, the resistive piece (4) may be movably bent to the front or rear side of the notch (13) of the crack prevention member (1) as needed, thereby forming an L-shaped resistive piece (4) corresponding to the shape of the L-shaped notch (13).

[0015] Thus, in implementation, first, the resistance pieces (4) provided at the notch portions (13) of the plurality of crack prevention members (1) of the present invention are bent to the front or rear side of the notch portions (13) of the crack prevention members (1). Referring also to FIG. 4, the present invention is installed at the frame corner position of the door frame (51) or the window frame (52), and the frame corners of the door frame (51) and the window frame (52) are brought into contact with the notch portions (13) and the resistance pieces (4) of the crack prevention member (1) according to the present invention. Referring also to FIGS. 5 and 6, one end of the fixing rod (2) is abutted against the template (6), and the tip (31) of the positioning rod (3) is inserted through the template (6). Subsequently, the constructor strikes the stop end (32) of the positioning rod (3) with a hammer tool such as a hammer to drive the tip (31) of the positioning rod (3) into the template (6) for fixing. A plurality of the present inventions are respectively struck against the template (6) and fixed at the frame corner portions of the door frame (51) and the window frame (52), and then a plurality of steel bars (7) are installed in the vertical and horizontal directions along the peripheries of the door frame (51) and the window frame (52). During construction, the vertical steel bars (71) and the horizontal steel bars (72) are directly inserted into the steel bar abutting areas (21) formed between the outer sides (113), (123) of the first sheet portion (11) and the second sheet portion (12) of the crack prevention member (1) and the fixing rod (2) adjacent to the outer sides (113), (123) of the first sheet portion (11) and the second sheet portion (12). By abutting the vertical steel bars (71) and the horizontal steel bars (72) against the fixing rod (2) portions adjacent to the outer sides (113), (123) of the first sheet portion (11) and the second sheet portion (12), the convenience of the arrangement of the steel bars (7) is improved, and the portions where the vertical steel bars (71) and the horizontal steel bars (72) intersect are fixed by tying them with iron wires.

[0016] Then, ready-mix concrete is poured into the space formed by the surrounding templates (6). At this time, the liquid concrete passes through the hollow holes (15) provided in the multiple crack prevention members (1) and the through holes (43) provided in the resistance pieces (4), flows smoothly between the multiple crack prevention members (1) and the resistance pieces (4), the concrete covers each crack prevention member (1) and resistance piece (4), and after the concrete hardens to form a wall structure, the present invention is tightly covered inside the wall structure. The resistance piece (4) provided on one side of the notch (13) of the crack prevention member (1) further increases the gripping area between the present invention and the wall structure, further improving the rigidity of the bond and increasing the tear resistance strength of the foremost ends of the door frame (51) and window frame (52) that receive forces from the wall structure at the corners. In this way, when a reinforced concrete (RC) wall is subjected to external forces such as seismic vibrations, thermal expansion, and cooling condensation, stress is generated at the corners of the wall surface of the door frame (51) and window frame (52). When stress is transmitted to the notch (13) of the crack prevention member (1), it is blocked by the L-shaped resistance piece (4) provided at the notch (13), altering the direction of stress transmission, generating resistance to the external force, and reducing and dispersing the effect of the external force corresponding to the force end. This improves the stress resistance and tear resistance performance of the foremost force-receiving points of the wall structure at the corners of the door frame (51) and window frame (52), and effectively prevents cracks and microcracks from occurring on the foremost surface layer of the wall structure at the corners of the door frame (51) and window frame (52) when subjected to forces from earthquakes or other factors.

[0017] Incidentally, when the present invention integrally forms and attaches the resistance piece (4) with the crack prevention member (1) for use, by bending the resistance piece (4) at a front or rear location of the crack prevention member (1), the manufacturing cost of the present invention is significantly saved by the design of integrally forming the resistance piece (4) and the crack prevention member (1), and the convenience of attachment and use is improved. In the unused state, the resistance piece (4) of the present invention is integrally connected to the notch portion (13) of the crack prevention member (1), thereby forming a flat plate shape together with the crack prevention member (1). Thus, the resistance piece (4) is prevented from being located in the space occupied by the front and rear sides of the notch portion (13) of the crack prevention member (1), saving the warehouse storage cost and transportation cost of the present invention.

[0018] The foregoing embodiments and drawings do not limit the embodiments of the present invention. In addition to making the notch portion (13) and the resistance piece (4) of the crack prevention member (1) according to the present invention L-shaped, they may be provided in a shape such as an arc shape. Note that the resistance piece (4) of the present invention is integrally connected to the notch portion (13) of the crack prevention member (1). When attaching and using, in addition to bending the resistance piece (4) to the front or rear side of the notch portion (13) of the crack prevention member (1), the L-shaped resistance piece (4) may be spot welded and connected to the front or rear side of the notch portion (13) of the crack prevention member (1). Also, two L-shaped resistance pieces (4) may be provided in the present invention, and may be respectively connected by spot welding to the front and rear sides of the notch portion (13) of the crack prevention member (1). By doing so, connecting a resistance piece (4) corresponding to the shape of the notch portion (13) of the crack prevention member (1) to at least one side location before and after the notch portion (13) of the crack prevention member (1) does not depart from the patent scope of the present invention at all.

[0019] From the above structure and implementation method, it can be seen that the present invention has the following advantages. 1. The improvement to the door window corner wall crack prevention kit structure according to the present invention is that, by connecting a resistance piece to at least one side of the notch of the crack prevention member, the gripping area at the foremost end that receives force from the wall structure at the corner of the door and window frame is increased, the rigidity of the connection is enhanced, and the tear resistance strength at the foremost end that receives force from the wall structure at the corner of the door and window frame is improved. 2. The improved door window corner wall crack prevention kit structure according to the present invention has an L-shaped resistance piece connected to at least one side of the notch of the crack prevention member. When stress generated by an earthquake or the like is transmitted to the resistance piece, it is blocked by the resistance piece, altering the direction of stress transmission, creating resistance to the action of external forces, and reducing and dispersing the action of external forces corresponding to the force end. In this way, the stress resistance performance and tear resistance performance of the foremost point of the wall structure that receives forces at the corners of doors and window frames are improved, achieving the effect of preventing the occurrence of cracks and microcracks on the foremost surface layer that receives forces at the corners of doors and window frames. 3. The improved door window corner wall crack prevention kit structure according to the present invention simplifies the structural design by connecting a resistance piece to at least one side of the notch of the crack prevention member, effectively improving the stress resistance and tear resistance performance of the foremost point of the wall structure that receives forces at the corners of doors and window frames, as well as significantly reducing manufacturing costs and improving convenience when assembling and using the kit. 4. The improved door window corner wall crack prevention kit structure according to the present invention has a resistance piece integrally molded into the notched portion of the crack prevention member, forming a flat plate shape together with the resistance piece. In this way, when not in use, the resistance piece does not occupy the space in front of and behind the notched portion of the crack prevention member, saving on warehouse storage and transportation costs.

[0020] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of Symbols]

[0021] 1. Crack prevention member 11. First sheet section 111 End edge 112 1st side 113 Outer edge 12. Second seat section 121 Edge edge 122 Second side 123 Outer edge 13 Notch 14 fixing hole 15 Hollow hole 16 Work Area 161 Vertical lines 162 horizontal lines 17 Positioning holes 2 Fixed rods 21 Rebar contact area 3 Positioning rod 31 Tip 32 Stop End 4 resistance piece 41 Sheet 1 42 Second seat 43 Through hole 51 Door frame 52 Window frame 6 Templates 7 Reinforcement bars 71 Longitudinal reinforcement bars 72 Horizontal reinforcement bars m Door window corner wall crack prevention kit structure m1 Crack prevention member m2 fixed rod m3 Reinforcement Unit m31 Reinforcement m32 shock absorbing member m33 Caulking-filled reinforcement section

Claims

1. A plurality of crack prevention members are installed in a manner that corresponds to each other and is spaced apart, wherein each crack prevention member includes a first sheet portion provided in the vertical direction and a second sheet portion provided in the horizontal direction, the first sheet portion is vertically connected to the second sheet portion so as to be integral with it, one side of the first sheet portion and the second sheet portion jointly forms a notch, and the end edges of the first sheet portion and the second sheet portion each have two fixing holes adjacent to the notch, The first and second sheet portions of the multiple crack prevention members are penetrated so that fixing rods are fixed to two corresponding fixing holes, the first sheet portion has two vertical lines defined that pass through the two fixing rods in the longitudinal direction, and the second sheet portion has two horizontal lines defined that pass through the two fixing rods in the transverse direction, and the two vertical lines and the two horizontal lines together with the end edges of the first and second sheet portions form a work area, and the work area has multiple fixing rods provided with at least one positioning hole, An improved door window corner wall crack prevention kit structure comprising: at least one positioning rod that is inserted through the corresponding positioning holes of a plurality of the crack prevention members and fixed to a template, The door window corner wall crack prevention kit structure is characterized in that the crack prevention member has a resistance piece connected to at least one side of the notch of the crack prevention member, the resistance piece corresponding to the shape of the notch of the crack prevention member.

2. The door window corner wall crack prevention kit structure according to claim 1, characterized in that the notch of the crack prevention member is L-shaped, and the resistance piece is formed in an L-shape corresponding to the shape of the notch of the crack prevention member.

3. The door window corner wall crack prevention kit structure according to claim 1, characterized in that one side of the notch jointly formed by the first sheet portion and the second sheet portion of the crack prevention member is defined as the first side and the second side, respectively, the resistance piece is located at the notch portion of the crack prevention member, the resistance piece comprises a first sheet provided in the vertical direction and a second sheet provided in the horizontal direction, the first sheet of the resistance piece is connected vertically so as to be integral with the second sheet, the side of the first sheet of the resistance piece is connected so as to be integral with the first side of the first sheet portion of the adjacent crack prevention member, the side of the second sheet of the resistance piece is connected so as to be integral with the second side of the second sheet portion of the adjacent crack prevention member, the resistance piece is movable and bendable to one side of the notch portion of the crack prevention member and corresponds to the shape of the notch portion of the crack prevention member.