Crime prevention lattice door

Abstract

To provide a crime prevention lattice door, which has crime prevention performance, is additionally configured to be excellent in lighting property and aesthetic appearance.SOLUTION: The horizontal length of each lattice section 1b to 1h of a metal sash screen 1 hung from an upper rail 2 is configured to be a maximum of 134 mm, and the vertical length is configured to be a maximum of 849 mm, and only the square large lattice section 1b and the rectangular first lattice section 1d, which have vertical lengths of 259 mm or less, are configured to have a horizontal length of 134 mm, and each side of each lattice section 1b to 1h is made of a metal material (e.g., iron) that is difficult to break.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a burglar-proof lattice door that not only has burglar-proof performance but also has excellent lighting and design properties. [Background technology]

[0002] Conventionally, in order to ensure the security of living room windows and small windows, grilles or the like have been installed on the exterior side of the window to cover the entire window frame, making it difficult for intruders to break into the window even if they break it (for example, Patent Document 1).

[0003] On the other hand, proposals have been made to install screen doors that can be locked on the indoor side of the window without installing grilles or the like on the outdoor side of the window, or to lock the area between the screen door and the window (for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-174951 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-053646 Summary of the Invention [Problem to be solved by the invention]

[0005] The grilles mentioned above cover the entire exterior of the window, which detracts from the aesthetic appeal of the exterior, and may reduce lighting and increase the sense of claustrophobia and psychological pressure felt by residents. Furthermore, the screen doors mentioned above can be removed when the door is unlocked, which may invalidate the various security features.

[0006] The present invention has been made in consideration of the above circumstances, and has as its object to provide a security lattice door that not only has security performance but also has excellent lighting properties and design. [Means for solving the problem]

[0007] To achieve this object, the security lattice door described in claim 1 comprises a support provided at a position separating one space from another space, a movable unit configured to be displaceable relative to the support, a lattice door to which the movable unit is fixed at the top, a guide protrusion fixed to a predetermined portion on the lower side of the lattice door and configured to be insertable into a guide groove formed on the lower edge of the lattice door, and a locking device capable of locking one lattice door with another lattice door or a predetermined wall body, and the guide protrusion is arranged at a position that maintains a state in which a part or all of the guide protrusion is inserted into the guide groove within the movable range of the lattice door. The lattice door is configured to move left and right in a state where it is suspended from the support body via the movable unit, by the movable unit being displaced relative to the support body while maintaining a state in which part or all of the guide protrusion is inserted into the guide groove, and the lattice door has at least a first shaped portion formed with a first dimension in which the length of a specified side or diameter is 2 / 5 or less of the width of the lattice door, and a second shaped portion formed with a second dimension in which the length of a specified side or diameter is shorter than the first dimension, and the first shaped portion and the second shaped portion are formed so as to be adjacent to each other.

[0008] The security lattice door described in claim 2 is a security lattice door described in claim 1, in which the first shape portion and the second shape portion are configured so that the lengths of all sides or diameters are integer multiples or approximately integer multiples of the second dimension.

[0009] The security lattice door according to claim 3 is the security lattice door according to claim 1 or claim 2, wherein the second dimension is 1 / 2 or approximately 1 / 2 the length of the first dimension.

[0010] The burglary prevention lattice door according to claim 4 is the burglary prevention lattice door according to claim 1 or 2, wherein the lattice door is made of metal and has a rectangular shape.

[0011] The security lattice door described in claim 5 is a security lattice door described in claim 1 or claim 2, wherein the first shaped portion and the second shaped portion are formed so that a predetermined side or diameter of the first shaped portion and a predetermined side or diameter of the second shaped portion are flush with each other.

[0012] The security lattice door described in claim 6 is the security lattice door described in claim 1 or claim 2, wherein the first dimension is a length of 300 millimeters or less.

[0013] The security lattice door described in claim 7 is a security lattice door described in claim 1 or claim 2, wherein the lattice door has a third shape portion that is different in shape from the first shape portion and the second shape portion, the length of a specified side or diameter being the second dimension, and the length of another side or diameter being a third dimension that is equal to or greater than the first dimension.

[0014] The security lattice door described in claim 8 is the security lattice door described in claim 7, wherein the lattice door is formed by combining at least the first shaped portion, the second shaped portion, and the third shaped portion.

[0015] The burglary prevention lattice door according to claim 9 is the burglary prevention lattice door according to claim 1 or 2, in which at least two or more of the guide protrusions are provided on the lower side of the lattice door.

[0016] The security lattice door of claim 10 is the security lattice door of claim 9, wherein the guide protrusion is provided at least at a position corresponding to one end of the lower side of the lattice door and a position corresponding to the other end of the lower side of the lattice door. [Effects of the Invention]

[0017] According to the security lattice door of claim 1, a support provided at a position separating one space from another space, a movable unit configured to be displaceable relative to the support, a lattice door to which the movable unit is fixed at the top, a guide protrusion fixed to a predetermined portion on the lower side of the lattice door and configured to be insertable into a guide groove formed on the lower side of the lattice door, and a locking device capable of locking one of the lattice doors and another lattice door or a predetermined wall body, and the guide protrusion is arranged at a position where a part or all of the guide protrusion is maintained inserted into the guide groove within the movable range of the lattice door, and The lattice door is configured to move left and right when suspended from the support via the movable unit by displacing the movable unit relative to the support while maintaining a state in which part or all of the guide protrusions are inserted into the guide grooves, and the lattice door has at least a first shaped portion formed with a first dimension whose predetermined side or diameter length is 2 / 5 or less of the width of the lattice door, and a second shaped portion formed with a second dimension whose predetermined side or diameter length is shorter than the first dimension, and the first shaped portion and the second shaped portion are formed so that they are adjacent to each other. This has the effect of providing robust security performance while also providing excellent lighting and design.

[0018] The security lattice door of claim 2 has the following effect in addition to the effect of the security lattice door of claim 1. That is, the first shaped portion and the second shaped portion are configured so that the lengths of all sides or diameters are integral multiples or approximately integral multiples of the second dimension. This has the effect of improving the design by giving each shaped portion a geometric aesthetic.

[0019] The security lattice door of claim 3 has the following effect in addition to the effect of the security lattice door of claim 1 or claim 2. That is, the second dimension is 1 / 2 or approximately 1 / 2 the length of the first dimension. This has the effect of improving the design by providing a geometric aesthetic in which the first shape portion and the second shape portion have a similar relationship of integral multiples or approximately integral multiples.

[0020] The burglary prevention lattice door of claim 4 has the following effect in addition to the effect of the burglary prevention lattice door of claim 1 or 2. That is, the lattice door is formed in a rectangular shape made of metal, which has the effect of increasing the resistance to breakage of each shaped part.

[0021] The security lattice door of claim 5 has the following effect in addition to the effect of the security lattice door of claim 1 or claim 2. That is, the first shaped portion and the second shaped portion of the security lattice door are formed so that a predetermined side or diameter of the first shaped portion and a predetermined side or diameter of the second shaped portion are flush with each other. This has the effect of improving the design by creating an aesthetic sense through the uniformity of each shaped portion.

[0022] The security lattice door of claim 6 achieves the following effect in addition to the effect achieved by the security lattice door of claim 1 or claim 2. That is, the first dimension is a length of 300 millimeters or less. This allows, for example, each shaped portion to be configured to make it difficult for an adult human body to pass through, and an adult human body cannot pass through unless at least one lattice side is broken, thereby improving security performance.

[0023] The security lattice door of claim 7 achieves the following effect in addition to the effect achieved by the security lattice door of claim 1 or claim 2. That is, the lattice door has a third shaped portion that is different in shape from the first shaped portion and the second shaped portion, and has a predetermined side or diameter length that is the second dimension, and the other side or diameter length is formed to be a third dimension that is equal to or greater than the first dimension. This has the effect of improving the variety of design of the lattice door by using at least three types of shaped portions.

[0024] The security lattice door of claim 8 has the following effect in addition to the effect of the security lattice door of claim 7. That is, the lattice door is formed by combining at least the first shaped portion, the second shaped portion, and the third shaped portion. This has the effect of providing a geometric aesthetic by combining at least three types of shaped portions, and improving the variety of design of the lattice door.

[0025] The security lattice door of claim 9 achieves the following effect in addition to the effect achieved by the security lattice door of claim 1 or claim 2. That is, at least two or more guide protrusions are provided on the lower side of the lattice door. This has the effect of preventing the lattice door from moving in a twisting direction by maintaining the state in which two or more guide protrusions are inserted into the guide grooves, making it difficult to remove the lattice door and improving security performance.

[0026] The security lattice door of claim 10 achieves the following effect in addition to the effect achieved by the security lattice door of claim 9. That is, the guide protrusions are provided at least at a position corresponding to one end of the lower side of the lattice door and a position corresponding to the other end of the lower side of the lattice door. This makes it difficult to remove the lattice door, improving security performance while making effective use of the space other than the two ends of the lower side of the lattice door. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1(a) is a front view of a burglarproof lattice door in a first embodiment of the present invention, and FIG. 1(b) is a top view of the burglarproof lattice door as seen from the direction of line Ib in FIG. [Figure 2] 1. (a) is a schematic enlarged front view (including a partial cross-sectional view) of part IIa in FIG. 1, and (b) is a schematic cross-sectional view of the security lattice door from the direction of line IIb in (a). [Figure 3] 1. (a) is a schematic enlarged front view of part IIIa in FIG. 1, and (b) is a schematic cross-sectional view of the security lattice door from the direction of line IIIb in (a). [Figure 4]This is a schematic perspective view (including a partial cross-sectional view) of a security lattice door. [Figure 5] FIG. 10 is a front view of a security lattice door according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a front view of a security lattice door according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] First Embodiment Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, with reference to FIGS. 1 to 4, a first embodiment of the present invention will be described in which the present invention is applied to a burglary lattice door comprising a metal shoji screen 1, an upper rail 2, a sliding unit 3, and a lower guide 4 (hereinafter, a burglary lattice door comprising a metal shoji screen 1, an upper rail 2, a sliding unit 3, and a lower guide 4 may be simply referred to as a "burglary lattice door"). FIG. 1(a) is a front view of the burglary lattice door in the first embodiment of the present invention, and FIG. 1(b) is a top view of the burglary lattice door as viewed from line Ib in FIG. 1(a). Furthermore, FIG. 2(a) is a schematic enlarged front view (including a partial cross-sectional view) of part IIa in FIG. 1, and FIG. 2(b) is a schematic cross-sectional view of the burglary lattice door as viewed from line IIb in FIG. 2(a). 3(a) is a schematic enlarged front view of part IIIa in FIG. 1, and FIG. 3(b) is a schematic cross-sectional view of the burglar-proof lattice door taken along line IIIb in FIG. 3(a). FIG. 4 is a schematic perspective view (including a partial cross-sectional view) of the burglar-proof lattice door. In FIGS. 2, 3, and 4, a portion of the upper rail 2 is vertically cut to expose the sliding unit 3, for better understanding of the configuration of the upper rail 2 and the sliding unit 3. In the perspective view of FIG. 4, the symbols for the large square lattice portion 1b, the small square lattice portion 1c, the first rectangular lattice portion 1d, the second rectangular lattice portion 1e, the third rectangular lattice portion 1f, the fourth rectangular lattice portion 1g, the fifth rectangular lattice portion 1h, and the guide rail 1i are omitted for better visibility of each component.

[0029] First, the details of each component of the burglary prevention lattice door will be explained with reference to Figures 1 to 4. The burglary prevention lattice door is composed of a metal shoji screen 1, an upper rail 2, a sliding unit 3, and a lower guide 4.

[0030] 1(a), 1(b), and 4 show a state in which metal shoji screens 1, each with two sliding units 3 fixed to both upper ends, are hung from an upper rail 2 installed at the top of the interior side of the glass surface of a window frame (not shown), and the two metal shoji screens 1 are installed as sliding windows (the metal shoji screen 1 on the left side as seen from the front is the back side, and the metal shoji screen 1 on the right side as seen from the front is the front side), and are each in a closed position. In this closed position, cylinder locks 1j provided at the left center of the metal shoji screen 1 on the left side as seen from the front and the left center of the metal shoji screen 1 on the right side as seen from the front are locked with a dedicated key, so that each metal shoji screen 1 cannot be opened, and can be unlocked from that state with the dedicated key to open each metal shoji screen 1.

[0031] Also, the figure shows a state in which the lower guide 4 of 1 is arranged at the lower right end of the metal shoji screen 1 on the left side as viewed from the front, and the lower guide 4 of 1 is arranged at the lower left end of the metal shoji screen 1 on the right side as viewed from the front. From this state, the metal shoji screen 1 on the left side as viewed from the front is configured to be slidable to the right side as viewed from the front, and the metal shoji screen 1 on the right side as viewed from the front is configured to be slidable to the left side as viewed from the front.

[0032] The metal shoji screen 1 of 1 is entirely made of the same metal material (for example, iron) that is difficult to break, and the inside of the lattice frame 1a that forms the outside (vertical frame length: 2170 mm, width: 50 mm, thickness: 9 mm; horizontal frame length: 20 mm, width: 1182.5 mm, thickness: 9 mm) is welded to a plurality of plate-shaped vertical lattices with a depth of 30 mm and a thickness of 9 mm, and a plurality of plate-shaped horizontal lattices also with a depth of 30 mm, and the inside of the lattice frame 1a is welded to a plurality of plate-shaped vertical lattices with a depth of 30 mm and a thickness of 9 mm, and the inside of the lattice frame 1a is welded to a plurality of plate-shaped horizontal lattices also with a depth of 30 mm, and the inside of the lattice frame 1a is formed into a square large lattice portion 1b, a square small lattice portion 1c, a rectangular first lattice portion 1d, a rectangular second lattice portion 1e, a rectangular third lattice portion 1f, Two or more of each of the seven types of lattice sections are formed: rectangular fourth lattice section 1g and rectangular fifth lattice section 1h (hereinafter, large square lattice section 1b, small square lattice section 1c, first rectangular lattice section 1d, second rectangular lattice section 1e, third rectangular lattice section 1f, fourth rectangular lattice section 1g, and fifth rectangular lattice section 1h may be collectively referred to as "each lattice section 1b to 1h", and first rectangular lattice section 1d, second rectangular lattice section 1e, third rectangular lattice section 1f, fourth rectangular lattice section 1g, and fifth rectangular lattice section 1h may be collectively referred to as "each rectangular lattice section 1d to 1h").

[0033] The large square lattice section 1b is formed to have a roughly square shape in front view with a horizontal side length of 259.5 mm and a vertical side length of 277 mm, while the small square lattice section 1c is formed to have a roughly square shape in front view with a horizontal side length of 130 mm and a vertical side length of 134 mm. In this way, the large square lattice section 1b and the small square lattice section 1c are formed to have an open area ratio of roughly 1 / 2 and have roughly the same similar square shape, and by configuring the large square lattice section 1b and the small square lattice section 1c to have a pattern where they are adjacent to each other, the large square lattice section 1b and the small square lattice section 1c create a geometric aesthetic and improve the design of the metal shoji screen 1.

[0034] The rectangular first lattice section 1d is configured to have a horizontally long rectangular shape in a front view, with a horizontal side length of 259 mm, which is the same as the horizontal side length of the square large lattice section 1b, and a vertical side length of 134 mm, which is the same as the vertical side length (and horizontal side length) of the square small lattice section 1c. The horizontal side length of each of the rectangular second lattice section 1e, rectangular third lattice section 1f, rectangular fourth lattice section 1g, and rectangular fifth lattice section 1h is 130 mm, which is the same as the horizontal side length (and vertical side length) of the square small lattice section 1c. The vertical side length of the rectangular second lattice section 1e is 420 mm, the vertical side length of the rectangular third lattice section 1f is 563 mm, the vertical side length of the rectangular fourth lattice section 1g is 706 mm, and the vertical side length of the rectangular fifth lattice section 1h is 849 mm. In other words, the horizontal side length of each rectangular lattice section 1d to 1h is the same, while the vertical side length of each is configured to increase by approximately an integer multiple (the length obtained by gradually adding the 9 mm horizontal side thickness of the lattice according to the vertical width) of the horizontal side length (and vertical side length) of the square small lattice section 1c.

[0035] In this way, the horizontal side length of each lattice section 1b to 1h is configured to a maximum of 134 mm and the vertical side length to a maximum of 849 mm, and only the large square lattice section 1b and the first rectangular lattice section 1d, which have vertical side lengths of 259 mm or less, are configured so that the horizontal side length is 134 mm, and each side of each lattice section 1b to 1h is configured from a metal material that is difficult to break.By doing so, the horizontal side length of each lattice section 1b to 1h is made to be 2 / 5 or less of the horizontal dimension of the metal shoji 1 (259.5 mm / 1182.5 mm ≒ 0.22), and since it is difficult for an adult human body to pass through unless at least one side is broken, the open area of ​​the lattice sections 1b to 1h alone can be made to be difficult for an adult human body to pass through, and by widening the open area of ​​each lattice section 1b to 1h, the light transmission and ventilation can be improved while the security of the metal shoji 1 can be increased.

[0036] Furthermore, the side length of each of the lattice sections 1b to 1h is set to approximately the same length as the minimum side length of 134 mm, and the lattice sections 1b to 1h are arranged in an irregular pattern with the top and / or bottom sides of each lattice section 1b to 1h aligned at the top or bottom. This evokes a sense of geometric beauty due to the uniform vertical alignment of the arrangement pattern of the lattice sections 1b to 1h, and even when multiple lattice sections 1b to 1h are provided, it is possible to improve the design of the metal shoji screen 1 while still allowing for size variation.

[0037] Furthermore, with regard to the arrangement of the lattice sections 1b to 1h, the horizontal side lengths of the lattice sections 1b to 1h are arranged so that they alternate between 130 mm and 259.5 mm in the areas other than the left side when viewed from the front of the metal shoji screen 1. In this way, by arranging the left and right sides of the lattice sections 1b to 1h to be horizontally aligned, a sense of geometric beauty is evoked by the uniformity of the horizontal alignment of the arrangement pattern of the lattice sections 1b to 1h, and even when multiple lattice sections 1b to 1h are provided, it is possible to improve the design of the metal shoji screen 1 while providing a variety of sizes.

[0038] The large square lattice section 1b may have equal side lengths (for example, 259 mm for both horizontal and vertical sides) and / or the small square lattice section 1c may have equal side lengths (for example, 134 mm for both horizontal and vertical sides). The side lengths of the lattice sections 1b-1h may also be configured to be an integer multiple (i.e., 130 mm, 260 mm, 390 mm, etc.) of the minimum horizontal length of the small square lattice section 1c, 130 mm, even when taking into account the 9 mm horizontal thickness of the lattice. By configuring the lattice sections 1b-1h in this way, the uniformity of the lattice sections 1b-1h is enhanced, and the geometric aesthetics of the metal shoji screen 1 can be improved.

[0039] Next, the upper rail 2 and the sliding unit 3 will be described in detail with reference to Figures 2(a), 2(b), and 4. As described above, the upper rail 2 is fixed to the upper interior side of the glass surface of a window frame (not shown) in a manner that makes it difficult to remove. The upper rail 2 has internal walls 2a formed therein, which form two hollow spaces within the upper rail 2. The movable rollers 3a of each sliding unit 3 are configured to be rotatable left and right within each space formed by the internal walls 2a. In the first embodiment, a space corresponding to the sliding unit 3 fixed to the metal shoji screen 1 on the left side as viewed from the front is formed at the rear side of the upper rail 2 as viewed from the front, and a space corresponding to the sliding unit 3 fixed to the metal shoji screen 1 on the right side as viewed from the front is formed at the front side of the upper rail 2 as viewed from the front.

[0040] Furthermore, the connecting portion 3b of the sliding unit 3 is connected to the movable roller 3a, and is also fixed so as to be difficult to remove to the upper edge of the lattice frame 1a of the metal shoji screen 1. As a result, for example, when the metal shoji screen 1 on the left side as seen from the front is tried to slide to the right as seen from the front with the window frame closed, if a force is applied to the metal shoji screen 1 in the right direction as seen from the front, that force is applied to the movable roller 3a of the sliding unit 3 via the connecting portion 3b, causing it to rotate to the right, and the metal shoji screen 1 suspended from the upper rail 2 can slide smoothly without experiencing frictional resistance due to its own weight.

[0041] Next, the details of the lower guide 4 will be described with reference to Figures 3(a), 3(b) and 4. As described above, in the first embodiment, one lower guide 4 is fixed to a flat surface (e.g., the underside of the window frame; the same applies hereinafter) at the lower right end of the metal shoji screen 1 on the left side when viewed from the front, and one lower guide 4 is fixed to a flat surface at the lower left end of the metal shoji screen 1 on the right side when viewed from the front.

[0042] One lower guide 4 is provided for each metal shoji screen 1, and the lower guide 4 corresponding to the metal shoji screen 1 on the left side when viewed from the front is located at the back when viewed from the front, and is fixed to the flat surface on the lower side of the metal shoji screen 1 while being inserted into a guide rail 1i formed in a groove on the lower side of the bottom edge of the lattice frame 1a of the metal shoji screen 1, while the lower guide 4 corresponding to the metal shoji screen 1 on the right side when viewed from the front is located at the front, and is fixed to the flat surface while being inserted into a guide rail 1i formed in a groove on the lower side of the bottom edge of the lattice frame 1a of the metal shoji screen 1.

[0043] In the state shown in Figure 3(a), each metal shoji screen 1 is in the closed position, and the right end of the guide rail 1i of the metal shoji screen 1 on the left side as seen from the front is in contact with the right end of the lower guide 4 corresponding to the metal shoji screen 1 on the left side as seen from the front. Also, the left end of the guide rail 1i of the metal shoji screen 1 on the right side as seen from the front is in contact with the left end of the lower guide 4 corresponding to the metal shoji screen 1 on the right side as seen from the front.

[0044] From this state, when the metal shoji screen 1 on the left side as viewed from the front slides to the right side as viewed from the front (i.e., in the opening direction), the lower guide 4 continues to be inserted into the guide rail 1i, so that the metal shoji screen 1 slides to the right side as viewed from the front while preventing it from shifting in the front-to-back direction as viewed from the front, and when it reaches the maximum open position, the left end of the lower guide 4 abuts against the left end of the guide rail 1i. Also, when the metal shoji screen 1 on the right side as viewed from the front slides to the left side as viewed from the front (i.e., in the opening direction), the lower guide 4 continues to be inserted into the guide rail 1i, so that the metal shoji screen 1 slides to the left side as viewed from the front while preventing it from shifting in the front-to-back direction as viewed from the front, and when it reaches the maximum open position, the left end of the lower guide 4 abuts against the right end of the guide rail 1i.

[0045] With this configuration, regardless of the state of each metal shoji screen 1, the lower guides 4 can remain inserted into the guide rails 1i of each metal shoji screen 1. Thus, like the glass in a window frame, each metal shoji screen 1 can be opened and closed by smoothly sliding left and right when viewed from the front without misalignment, and when each metal shoji screen 1 is locked, the lower guides 4 remain inserted into the guide rails 1i, preventing each metal shoji screen 1 from being removed and preventing it from moving forward and backward when viewed from the front, thereby enhancing the security performance of the security lattice door.

[0046] As explained above, in the security lattice door of the first embodiment, the metal shoji screens 1 are configured to be difficult to remove from the entire window frame when locked, thereby improving the security performance of the security lattice door. Furthermore, by configuring the open area of ​​each lattice section 1b-1h to be large enough to make it difficult for an adult human body to pass through and by constructing each side of each lattice section 1b-1h from metal, the security performance of the security lattice door can be improved. Furthermore, by configuring the open area of ​​each lattice section 1b-1h to have a predetermined relationship (in the first embodiment, one of the sides is approximately an integer multiple), and combining the vertical and / or horizontal alignment of the lattice sections 1b-1h, the door does not give the feeling of claustrophobia caused by metal materials, provides natural lighting and ventilation, and the uniformity evokes a geometric aesthetic, improving the design.

[0047] Second Embodiment Next, a second embodiment of the burglary prevention lattice door to which the present invention is applied will be described with reference to Figure 5. In the first embodiment of the burglary prevention lattice door, two metal shoji screens 1 are installed as sliding windows on the indoor side of the glass surface of the window frame, and at least approximately half of the window frame opening is configured to be closed by one of the metal shoji screens 1.

[0048] In contrast, in the second embodiment of the security lattice door, two metal shoji screens 1 that are in a closed state separating two rooms in a room are slid left and right to be installed as double-hinged sliding doors, and each lower guide 4 corresponding to each metal shoji screen 1 is placed at the left end as viewed from the front for the metal shoji screen 1 on the left side when viewed from the front, and at the right end as viewed from the front for the metal shoji screen 1 on the right side when viewed from the front, with no lower guide 4 placed in the center.

[0049] The following description of the second embodiment of the burglarproof lattice door will focus on the differences from the first embodiment. In the following description of the second embodiment of the burglarproof lattice door, the same components as those in the first embodiment will be assigned the same reference numerals as in the first embodiment, and their description will be omitted.

[0050] The components of the burglary prevention lattice door of the second embodiment will be described with reference to Fig. 5. Fig. 5 is a front view of the burglary prevention lattice door of the second embodiment of the present invention. The main differences between the burglary prevention lattice door of the first embodiment and the burglary prevention lattice door of the second embodiment are that each metal shoji door 1 is installed as a double-opening sliding door, that the upper rail 2 extends in the left-right direction by the length of one metal shoji door 1, that the lower guide 4 corresponding to each metal shoji door 1 is located at the left end as viewed from the front for the metal shoji door 1 on the left side as viewed from the front, and at the right end as viewed from the front for the metal shoji door 1 on the right side as viewed from the front, with no lower guide 4 located in the center, and that a cylinder lock 1j is not provided.

[0051] As shown in Figure 5, the security lattice door of the second embodiment is placed at a position that separates rooms in a room, and is installed so that the opening between the rooms is blocked when each metal shoji screen 1 is closed. The upper rail 2 is fixed across the opening between the rooms and the upper part of the wall parts on the left and right sides, and is configured so that when each metal shoji screen 1 is open, it can slide up to the wall parts and open the opening part.

[0052] One lower guide 4 is provided for each metal shoji screen 1, and the lower guide 4 corresponding to the metal shoji screen 1 on the left side as viewed from the front is located at the lower left end of the metal shoji screen 1 as viewed from the front, and the lower guide 4 corresponding to the metal shoji screen 1 on the right side as viewed from the front is located at the lower right end of the metal shoji screen 1 as viewed from the front.

[0053] In the state shown in Figure 5, each metal shoji screen 1 is in the closed position, and the right end of the lower guide 4 corresponding to the metal shoji screen 1 on the left side as viewed from the front abuts against the left end of the guide rail 1i (see Figure 3) of the metal shoji screen 1 on the left side as viewed from the front. Also, the left end of the lower guide 4 corresponding to the metal shoji screen 1 on the right side as viewed from the front abuts against the right end of the guide rail 1i of the metal shoji screen 1 on the right side as viewed from the front.

[0054] From this state, when the metal shoji screen 1 on the left side as viewed from the front slides leftward (i.e., in the opening direction), the lower guide 4 continues to be inserted into the guide rail 1i, causing the metal shoji screen 1 to slide leftward as viewed from the front while preventing it from shifting in the front-to-back direction as viewed from the front, and when it reaches the maximum open position, the left end of the lower guide 4 abuts against the right end of the guide rail 1i. Also, when the metal shoji screen 1 on the right side as viewed from the front slides rightward (i.e., in the opening direction), the lower guide 4 continues to be inserted into the guide rail 1i, causing the metal shoji screen 1 to slide rightward as viewed from the front while preventing it from shifting in the front-to-back direction as viewed from the front, and when it reaches the maximum open position, the left end of the lower guide 4 abuts against the left end of the guide rail 1i.

[0055] By configuring it in this way, regardless of the state of each metal shoji screen 1, the lower guides 4 can remain inserted into the guide rails 1i of each metal shoji screen 1, and there is no need to provide lower guides 4 or crosspieces on the floor of the opening between rooms, making it possible to configure the floor surfaces of the rooms to be flush.As a result, while keeping the floor surfaces between rooms flush, each metal shoji screen 1 can be opened and closed by smoothly sliding left and right when viewed from the front without misalignment.

[0056] In addition, the security lattice door in the second embodiment has the same configuration as the first embodiment and therefore provides the same effects.

[0057] <Third embodiment> Next, a third embodiment of the present invention will be described with reference to Fig. 6. In the first embodiment, the lattice frame 1a of the metal shoji screen 1 has a vertical frame length of 2170 mm, a horizontal width of 50 mm, and a thickness of 9 mm, and the horizontal frame length of the lattice frame 1a is 20 mm, a horizontal width of 1182.5 mm, and a thickness of 9 mm. The metal shoji screen 1 is configured by combining seven types of lattice sections 1b to 1h.

[0058] In contrast, in the security lattice door of the third embodiment, the metal shoji screen 1 of 1 is smaller in both length and width than the metal shoji screen 1 of the first embodiment, and the lattice frame 1a of the metal shoji screen 1 of 1 is configured with a vertical frame length of 1255 mm, a horizontal width of 50 mm and a thickness of 9 mm, and a horizontal frame length of 20 mm, a horizontal width of 845 mm and a thickness of 9 mm.In addition, the rectangular second lattice section 1e and the rectangular fifth lattice section 1h are not used, and instead the door is configured by combining a square large lattice section 1b, a square small lattice section 1c, a rectangular first lattice section 1d, a rectangular third lattice section 1f and a rectangular fourth lattice section 1g.

[0059] The following description of the security lattice door of the third embodiment will focus on the differences from the security lattice doors of the first and third embodiments. In the following description of the security lattice door of the third embodiment, the same components as those of the security lattice door of the first or second embodiment will be assigned the same reference numerals as those of the first or second embodiment, and their description will be omitted.

[0060] The components of the burglary lattice door of the third embodiment will be described with reference to Fig. 6. Fig. 6 is a front view of the burglary lattice door of the third embodiment of the present invention. The main differences between the burglary lattice door of the first embodiment and the burglary lattice door of the third embodiment are that the vertical and horizontal dimensions of the lattice frame 1a are different, that the burglary lattice door of the third embodiment does not employ the rectangular second lattice portion 1e and the rectangular fifth lattice portion 1h, but is instead composed of a combination of a square large lattice portion 1b, a square small lattice portion 1c, a rectangular first lattice portion 1d, a rectangular third lattice portion 1f, and a rectangular fourth lattice portion 1g, and that each lattice portion 1b.

[0061] As shown in Figure 6, each metal shoji screen 1 of the third embodiment is formed with five types of lattice sections: a large square lattice section 1b, a small square lattice section 1c, a first rectangular lattice section 1d, a third rectangular lattice section 1f, and a fourth rectangular lattice section 1g.

[0062] The large square lattice section 1b is formed so that it has an approximately square shape when viewed from the front, with a horizontal side length of 298 mm and a vertical side length of 295 mm, and the small square lattice section 1c is formed so that it has an approximately square shape when viewed from the front, with a horizontal side length of 140 mm and a vertical side length of 143 mm.

[0063] The rectangular first lattice section 1d has a vertically long rectangular shape and a horizontally long rectangular shape, and is configured so that its long sides are 298 mm long, the same as the horizontal side length of the square large lattice section 1b, and its short sides are 143 mm long, the same as the vertical side length (and horizontal side length) of the square small lattice section 1c, so that it has a horizontally long rectangular shape or a vertically long rectangular shape when viewed from the front. In addition, the horizontal side lengths of the rectangular third lattice section 1f and the rectangular fourth lattice section 1g are each 143 mm long, the same as the horizontal side length (and vertical side length) of the square small lattice section 1c, and the vertical side length of the rectangular third lattice section 1f is 599 mm, and the vertical side length of the rectangular fourth lattice section 1g is 754 mm. That is, while the horizontal side lengths of each rectangular lattice section 1d, 1f, 1g are the same, the vertical side lengths of each are configured to increase by approximately an integer multiple (the length obtained by gradually adding the 9 mm horizontal side thickness of the lattice according to the vertical width) of the horizontal side length (and vertical side length) of the small square lattice section 1c.

[0064] In this way, by configuring the metal shoji screen 1 with variations in combination of each lattice section 1b, 1c, 1d, 1f, 1g according to the horizontal dimension of the metal shoji screen 1 so as to maintain security performance, the horizontal side length of each lattice section 1b, 1c, 1d, 1f, 1g is set to 2 / 5 or less of the horizontal dimension of the metal shoji screen 1 (298 mm / 845 mm ≒ 0.35), and since it is difficult for an adult human body to pass through unless at least one side is broken, the open area of ​​lattice sections 1b, 1c, 1d, 1f, 1g alone can be made to be such that it is difficult for an adult human body to pass through, and by increasing the open area of ​​each lattice section 1b, 1c, 1d, 1f, 1g, the security of the metal shoji screen 1 can be increased while improving lighting and ventilation.

[0065] Although the present invention has been described above based on the above-described embodiments, it is readily apparent that the present invention is not limited to the above-described embodiments and that various modifications and improvements are possible within the scope of the present invention. For example, each embodiment or the following modifications may be modified by adding or replacing a part or parts of the configuration of another embodiment or modification with that embodiment or modification. Furthermore, the numerical values ​​given in the above-described embodiments or modifications are merely examples, and other numerical values ​​may of course be adopted.

[0066] <Variation 1> In the above embodiment, one bottom guide 4 is arranged for one metal shoji screen 1. However, two or more bottom guides 4 may be arranged for one metal shoji screen 1. For example, when two bottom guides 4 are arranged for one metal shoji screen 1, by arranging one bottom guide 4 at one end of the metal shoji screen 1 in the left-right direction and arranging another bottom guide 4 at the other end of the metal shoji screen 1 in the left-right direction, it becomes possible for the two bottom guides 4 to accurately suppress movement of the metal shoji screen 1 in the twisting direction (front-to-back direction when viewed from the front), thereby improving the security performance of the security lattice door.

[0067] <Variation 2> In the above embodiment, the metal shoji screen 1 is made of iron material to enhance crime prevention. However, the metal shoji screen 1 may be made of a plate material that is difficult to break, such as a metal other than iron, an alloy such as stainless steel, carbon fiber, resin, or wood, and may be manufactured by assembling and integrally molding without using welding or the like.

[0068] <Variation 3> In the above embodiment, each of the lattice portions 1b to 1h is configured with a quadrangle having a substantially square or rectangular shape. However, each of the lattice portions 1b to 1h may be configured with a triangle, a polygon having pentagons or more, or with multiple corners, such as a triangle + a quadrangle, a quadrangle + a hexagon, or a triangle + a quadrangle + a hexagon. Furthermore, each of the lattice portions 1b to 1h may be configured with a combination of multiple corners, such as a pattern in which triangles and quadrangles are mixed, or a pattern in which quadrangles and hexagons are mixed.

[0069] <Variation 4> In the above embodiment, each of the lattice sections 1b to 1h is configured as a quadrangle having a substantially square or rectangular shape that is too large for an adult human body to pass through. However, each of the lattice sections 1b to 1h may be configured as a shape that is too large for an adult human body to pass through and that includes a curve in part or in whole, such as a circle such as a perfect circle or ellipse, a sector, or a shape that combines a circle with a square.

[0070] <Variation 5> In the above embodiment, the lattice frame 1a and each of the lattice sections 1b to 1h of the metal shoji screen 1 are manufactured by welding. However, the lattice frame 1a and each of the lattice sections 1b to 1h of the metal shoji screen 1 may be manufactured by using or combining joining methods other than welding, such as muntins, screw fastening, welding, and integral molding.

[0071] <Variation 6> In the above embodiment, the interior of the upper rail 2 is hollow and the movable rollers 3a of the sliding unit 3 are configured to slide freely inside the hollow, allowing the metal shoji screen 1 to move left and right. Alternatively, a movable rail section may be provided on the outer portion of the upper rail 2, and the metal shoji screen 1 may be suspended from the rail section, allowing the metal shoji screen 1 to move left and right, or a movable gear or the like may be used instead of the movable rollers 3a to allow the metal shoji screen 1 to move left and right.

[0072] <Variation 7> In the above embodiment, the metal shoji screen 1 is suspended from the upper rail 2 via the sliding unit 3. However, instead of suspending the metal shoji screen 1, rollers or the like may be provided at the bottom of the metal shoji screen 1 to allow it to move. In this case, an upper guide may be provided on the upper rail 2, and a guide rail may be provided on the upper edge of the metal shoji screen 1 to allow it to slide without shifting position.

[0073] <Variation 8> In the above embodiment, all of the lattice sections 1b to 1h of the metal shoji screen 1 are configured to be in an open state. However, some or all of the lattice sections 1b to 1h of the metal shoji screen 1 may be configured to be covered with glass, shoji paper, or the like. This configuration makes it possible to increase the airtightness, and the glass, shoji paper, or the like can improve the design of the metal shoji screen 1.

[0074] <Variation 9> In the above embodiment, the side length of each of the lattice portions 1b to 1h is configured to be an integer or approximately integer multiple of the minimum side length, so that it is difficult for an adult human body to pass through. However, the side length of some or all of the lattice portions 1b to 1h may be configured to be a length that is unrelated to the minimum side length, as long as it is difficult for an adult human body to pass through.

[0075] <Modification 10> In the above embodiment, the lattice portions 1b to 1h are configured so that a portion of each of the upper and lower sides or the left and right sides is flush with each other. However, the lattice portions 1b to 1h may be configured so that a portion of each of the upper and lower sides or the left and right sides is not flush with each other, that is, the lattice portions 1b to 1h are configured so that they are arranged in a random pattern.

[0076] <Variation 11> In the above embodiment, a security lattice door is constructed using two metal shoji screens 1. However, it is also possible to use only one metal shoji screen 1 and place it in an opening the size of one door, or to use three or more metal shoji screens 1 and place it in an opening the size of multiple doors.

[0077] <Variation 12> In the above embodiment, the lattice sections 1b to 1h are combined with the entire metal shoji screen 1. However, it is also possible to adopt any one of the lattice sections 1b to 1h for only a portion of the metal shoji screen 1, and close off the rest of the screen with boards or the like.

[0078] <Variation 13> In the above embodiment, the metal shoji screen 1 is made of a single metal material. However, the metal shoji screen 1 may be made of multiple materials, such as metal and resin, metal and wood, or resin and wood. [Explanation of symbols]

[0079] 1 Metal shoji screen (part of a lattice door) 1b Large square lattice section (part of the first shape section) 1c Small square lattice section (part of the second shape section) 1d Rectangular first lattice section (part of the second shape section) 1e Rectangular second lattice section (part of the second shape section) 1f Rectangular third lattice section (part of the second shape section) 1g Rectangular 4th lattice section (part of the 2nd shape section) 1h Rectangular 5th lattice section (part of the 2nd shape section) 1i Guide rail (part of the guide groove) 1j Cylinder lock (part of the locking device) 2 Upper rail (part of the support) 3 Sliding unit (part of the movable unit) 4 Lower guide (part of guide protrusion)

Claims

1. a support provided at a position separating one space from another space; a movable unit configured to be displaceable relative to the support; a lattice door to which the movable unit is fixed at an upper portion; A guide protrusion fixed to a predetermined portion on the lower side of the lattice door and configured to be insertable into a guide groove formed on the lower edge of the lattice door; A locking device capable of locking one lattice door and another lattice door or a predetermined wall body, The guide protrusion is Within the movable range of the lattice door, the guide protrusion is positioned so that part or all of it remains inserted into the guide groove, The lattice door is In a state in which the movable unit is suspended from the support body via the movable unit, the movable unit is displaced relative to the support body while maintaining a state in which a part or all of the guide protrusion is inserted into the guide groove, thereby allowing the movable unit to move in the left-right direction, The lattice door has at least: A first shape portion formed with a first dimension in which the length of a predetermined side or diameter is 2 / 5 or less of the width of the lattice door; a second shape portion formed with a second dimension in which the length of a predetermined side or diameter is shorter than the first dimension, The first shape portion and the second shape portion are formed adjacent to each other. A security lattice door characterized by the following features.

2. The first shaped portion and the second shaped portion are The lengths of all sides or diameters are configured to be integral multiples or approximately integral multiples of the second dimension.

2. The security lattice door according to claim 1.

3. The second dimension is: The length is 1 / 2 or approximately 1 / 2 of the first dimension. A burglar-proof lattice door according to claim 1 or claim 2.

4. The lattice door is It is made of metal and has a rectangular shape. A burglar-proof lattice door according to claim 1 or claim 2.

5. The lattice door is The first shape portion and the second shape portion are formed so that a predetermined side or diameter of the first shape portion and a predetermined side or diameter of the second shape portion are flush with each other. A burglar-proof lattice door according to claim 1 or claim 2.

6. The first dimension is: be less than 300 millimeters in length A burglar-proof lattice door according to claim 1 or claim 2.

7. The lattice door is a third shaped portion having a shape different from the first shaped portion and the second shaped portion, a length of a predetermined side or diameter being the second dimension, and a length of another side or diameter being a third dimension equal to or greater than the first dimension; A burglar-proof lattice door according to claim 1 or claim 2.

8. The lattice door has at least: The first shaped portion, the second shaped portion, and the third shaped portion are combined together to form a 8. The security lattice door according to claim 7.

9. The guide protrusion includes at least Two or more are provided below the lattice door. A burglar-proof lattice door according to claim 1 or claim 2.

10. The guide protrusion includes at least The lattice door is provided at a position corresponding to one end of the lower side of the lattice door and at a position corresponding to the other end of the lower side of the lattice door. The security lattice door according to claim 9.

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