Louver door

Abstract

To provide a louver door which has a slim design by narrowing the width of a stile / intermediate-rail when viewed from the front side, while preventing a decrease in strength and enabling the installation of necessary parts.SOLUTION: Disclosed is a louver door 10, including left and right stiles 11, 12, upper and lower horizontal intermediate frames 13, 14, and multiple slats 1 arranged between the left and right stiles 11, 12, in which the left and right stiles 11, 12 are made from wooden boards with a generally rectangular cross section whose length in the left-right direction is shorter than its length in the door thickness direction. The upper horizontal intermediate frame 13 is made from wooden material that integrates an upper frame portion with a generally rectangular cross section whose length in the door vertical direction is shorter than its length in the door thickness direction and a blade-shaped portion with a generally trapezoidal cross section having substantially the same inclination as the slat 1, and the lower horizontal frame 14 is made from a wooden material that integrates a lower frame portion with a generally rectangular cross section whose length in the door vertical direction is shorter than its length in the door thickness direction and a blade-shaped portion with a generally trapezoidal cross section having substantially the same inclination as the slat 1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a louver door. [Background technology]

[0002] Traditionally, louver doors have been used, which are made up of left and right vertical frames, top and bottom horizontal frames, and multiple louvers arranged between the left and right vertical frames, allowing for good ventilation and light to enter.

[0003] As an invention relating to a louver door, Patent Document 1 describes a louver door in which a louver unit 2, to which a plurality of slats 22 are assembled, is assembled with a frame 3 consisting of vertical frames 30, 30 and horizontal frames 31, 31.

[0004] Patent Document 2 describes a screening material in which a groove 2 is formed in each of a pair of supports 1 in the longitudinal direction, and multiple square pieces 3 are arranged between the supports 1 so as to fit into the grooves 2.

[0005] Patent Document 3 describes a louver shutter that is configured by inserting a slat 5 into an engagement hole drilled diagonally on the inside of a vertical frame 3 of a frame main body 2. It also describes a simulated slat 6 that also serves as a center rail. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-045629 A [Patent Document 2] JP 2004-060272 A [Patent Document 3] Japanese Utility Model Application Publication No. 51-008646 Summary of the Invention [Problem to be solved by the invention]

[0007] Incidentally, conventional louver doors use thick, square, pillar-shaped frames to ensure their robustness, which makes the frame appear wider when viewed from the inside of the room (the front side of the louver door), giving the door an unsophisticated impression.

[0008] However, simply making the frame thinner in an attempt to give a slimmer impression can result in a loss of strength. Louver doors are used in a variety of forms, including folding doors, swing doors, and sliding doors, and can be opened and closed in a variety of ways, including single-leaf, double-leaf, and linked, but depending on the type and structure of the door, various parts such as support members such as hoisting wheels, hanging cups, guide pins, hinges, lower runners, push-open, magnetic catches, dampers, meeting devices, and anti-sway devices must be attached, so the frame must be wide and thick enough to attach the parts, and must also be strong enough.

[0009] In contrast, the louver door described in Patent Document 1 is assembled with a frame 3 because the louver unit 2 is not strong enough, and the frame is wide when viewed from the inside (the surface side of the louver door). Also, the screen member described in Patent Document 2 appears to have a pair of supports 1 that are narrow in width, but what is placed between each support 1 is a square timber 3, and it cannot be considered the same as a louver door with blades. Also, the louver shutters described in Patent Document 3 are shutters, so there is no idea of ​​attaching various parts.

[0010] On the other hand, the applicant proposed a louver door with a vertical frame having an approximately L-shaped cross section as a slim design louver door (Patent Application No. 2023-138892). However, since the processing of the vertical frame having an approximately L-shaped cross section is complicated and the manufacturing cost is high, further research was conducted.

[0011] To solve the above-mentioned problems of the conventional art, the present invention provides a louver door that has a slim design with a narrower frame width when viewed from the front side, while preventing a decrease in strength and allowing the installation of necessary parts. [Means for solving the problem]

[0012] In order to solve the above problems, the louver door of the present invention is a louver door having left and right vertical frames, upper and lower horizontal frames, and a plurality of blades arranged between the left and right vertical frames, and is characterized in that the left and right vertical frames are made of wooden boards with an approximately rectangular cross-section whose length in the left-right direction of the door is shorter than its length in the thickness direction of the door.

[0013] Preferably, the upper horizontal frame is a wooden material integrated with an upper frame portion having a roughly rectangular cross section whose length in the vertical direction of the door is shorter than its length in the thickness direction of the door, and a vane-shaped portion having a roughly trapezoidal cross section and having a sloped portion roughly the same as that of the vane, and the lower horizontal frame is a wooden material integrated with a lower frame portion having a roughly rectangular cross section whose length in the vertical direction of the door is shorter than its length in the thickness direction of the door, and a vane-shaped portion having a roughly trapezoidal cross section and having a sloped portion roughly the same as that of the vane.

[0014] It is also preferable that the blade has a middle horizontal frame which is a wooden member having a substantially hook-shaped cross section and which has a sloping portion substantially identical to that of the blade.

[0015] It is also preferable that the fan has an auxiliary stile which is a wooden material having a substantially trapezoidal cross section with a sloping portion substantially identical to that of the blade, and the auxiliary stile is arranged adjacent to at least one of the upper stile and the lower stile.

[0016] It is also preferable that the fan has an auxiliary stile which is a wooden material having a substantially trapezoidal cross section with an inclined portion substantially identical to that of the blade, and the auxiliary stile is arranged adjacent to at least one of the upper stile, the lower stile and the middle stile.

[0017] It is also preferable that the upper and lower horizontal frames are made of wooden material having a substantially trapezoidal cross section with a sloping portion substantially identical to that of the blades. Effect of the Invention

[0018] The louver door of the present invention has left and right vertical frames, upper and lower horizontal frames, and multiple blades arranged between the left and right vertical frames. The left and right vertical frames are made of wooden boards with a roughly rectangular cross section, with the length in the left-right direction of the door shorter than the length in the door thickness direction, so that the width of the left and right vertical frames is narrow when viewed from the front side, resulting in a slim design.

[0019] In addition, the upper horizontal frame is made of a wood material that integrates an upper frame portion with a generally rectangular cross section that is shorter in the vertical direction than in the thickness direction of the door, and a wing-shaped portion with a generally trapezoidal cross section that has an inclined portion that is roughly the same as the wing, so that the width of the upper frame portion that appears at the top when viewed from the front side is narrow and slim. Integrating the wing-shaped portion also increases the strength, and the inclined portion looks like a wing, creating a unified design. Furthermore, the size of the upper horizontal frame (in the thickness direction, vertical direction, and left-right direction of the door) can be used to attach the necessary parts.

[0020] In addition, the lower horizontal frame is made of a wood material that integrates a lower frame section with a generally rectangular cross section that is shorter in the vertical direction than in the thickness direction of the door, and a wing-shaped section with a generally trapezoidal cross section that has an inclined section that is roughly the same as the wing, so that the width of the lower frame section exposed at the bottom when viewed from the front side is narrow and slim design. Integrating the wing-shaped section also increases the strength, and the inclined section looks like a wing, making it possible to create a unified design. Furthermore, the size of the lower horizontal frame (in the thickness direction, vertical direction, and left-right direction of the door) can be used to attach the necessary parts.

[0021] In addition, by having a central horizontal frame, which is a wooden material with a cross section that is roughly hook-shaped and has an inclined portion that is roughly the same as the wing, the central horizontal frame increases the strength, and the inclined portion looks like a wing, creating a unified design. Furthermore, the size of the central horizontal frame (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach necessary parts. The central horizontal frame can also be used as a handle.

[0022] In addition, the auxiliary horizontal frame is made of a wooden material with a cross section of a roughly trapezoid shape having a slope that is roughly the same as the wing, and is placed next to at least one of the upper and lower horizontal frames, which increases the strength of the door and makes the slope look like a wing, creating a unified design. Furthermore, the size of the auxiliary horizontal frame (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach the necessary parts.

[0023] In addition, the auxiliary horizontal frame is a wooden material with a cross section of a roughly trapezoid shape having a sloped portion roughly the same as the wing, and is arranged to be attached to at least one of the upper, lower, and middle stiles, thereby increasing the strength of the auxiliary horizontal frame and making the sloped portion look like a wing, resulting in a unified design. Furthermore, the size of the auxiliary horizontal frame (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach the necessary parts.

[0024] In addition, the upper and lower horizontal frames are made of wood with a cross-section of a trapezoidal shape with an inclined portion that is approximately the same as the wing, so the upper and lower horizontal frames increase the strength and the inclined portion looks like a wing, creating a unified design. Furthermore, the size of the upper and lower horizontal frames (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach the necessary parts. Also, the design can be made so that the wing is continuous from top to bottom.

[0025] In this way, according to the present invention, it is possible to provide a louver door that has a slim design with a narrow frame width when viewed from the front side, while preventing a decrease in strength and allowing the installation of necessary parts. [Brief description of the drawings]

[0026] [Figure 1] FIG. 1 is a front view showing a folding door using a louver door according to a first embodiment of the present invention. [Diagram 2] (a) is a front view, (b) is a rear view, and (c) is a cross-sectional view taken along line AA, showing a louver door. [Diagram 3](a) is a front view, (b) is a rear view, (c) is a left side view, and (d) is an enlarged plan view showing the right vertical frame. [Figure 4] (a) Front view, (b) left side view, and (c) perspective view showing the upper horizontal frame. [Diagram 5] (a) Front view, (b) left side view, and (c) perspective view showing the lower horizontal frame. [Figure 6] (a) front view, (b) left side view, and (c) perspective view showing the center horizontal frame. [Figure 7] (a) is a front view, (b) is a left side view, and (c) is a perspective view showing the auxiliary cross frame. [Figure 8] (a) is a front view showing the blade, and (b) is a left side view. [Figure 9] FIG. 11 is a front view showing a folding door using louver doors according to the second embodiment. [Figure 10] (a) is a front view, (b) is a rear view, and (c) is a cross-sectional view along line BB showing a louver door. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] A louver door according to an embodiment of the present invention will be described with reference to Figures 1 to 10. The louver door according to this embodiment is used as a folding door for a closet by combining four louver doors. However, the present invention is not limited to folding doors, and can be applied to various doors such as hinged doors and sliding doors.

[0028] (Embodiment 1) A louver door 10 according to the first embodiment will be described with reference to Figures 1 to 8. Figure 1 is a front view showing a folding door 100 using the louver door 10 according to the first embodiment.

[0029] The folding door 100 is composed of four louver doors 10a, 10b, 10c, and 10d. The left louver doors 10a and 10b are connected by hinges and fold open to the left, and the right louver doors 10c and 10d are connected by hinges and fold open to the right. The upper and lower parts of each louver door 10 are formed with grooves 2 and 3 for hanging cups (not shown) (part of the upper or lower support member, e.g., a mounting member for mounting a hanging wheel or a guide pin). In addition, three grooves 4 for hinges (not shown) are formed in the vertical frame on one side of each louver door 10. Due to the difference in the positions of the grooves 2, 3, and 4, the louver doors 10a and 10c and the louver doors 10b and 10d are symmetrical.

[0030] Next, the louver door 10 will be described in detail. FIG. 2 shows the louver door 10 in (a) a front view, (b) a rear view, and (c) an AA line cross-sectional view. The louver door 10 shown in FIG. 2 is the louver door 10b, 10d in FIG. 1, but the louver doors 10a, 10c are similar except that they are symmetrical. In addition, in the following drawings, the direction shown in FIG. 2(a) is referred to as the front side, and the direction shown in FIG. 2(b) is referred to as the back side. Also, dowel holes (not shown) are formed in each member constituting the louver door 10, and each member is assembled using a dowel (not shown), and reinforced with an adhesive as necessary.

[0031] The louver door 10 is composed of left and right vertical frames 11, 12, upper and lower horizontal frames 13, 14, and multiple blades 1 arranged between the left and right vertical frames 11, 12. In addition, a center horizontal frame 15 is arranged in the approximately middle part in the vertical direction to reinforce the door, and a handle part for opening and closing the folding door 100 is formed in the center horizontal frame 15 as described later.

[0032] When the louver door 10 is viewed from the front side, the left and right vertical frames 11, 12 have a narrow width (e.g., 15 mm), giving it a slim impression. In addition, the top and bottom widths of the outermost frame parts of the top and bottom horizontal frames 13, 14 are narrow (e.g., 15 mm), giving it a slim impression. On the other hand, when viewed from the back side, the top and bottom horizontal frames 13, 14 have a wide width (e.g., 50 mm). In addition, the middle horizontal frame 15 is difficult to see from the front side, but its presence is clearly visible from the back side.

[0033] An auxiliary cross frame 16 is disposed below the upper cross frame 13 and attached to the upper cross frame 13. An auxiliary cross frame 17 is disposed above the lower cross frame 14 and attached to the lower cross frame 14. An auxiliary cross frame 18 is disposed above the center cross frame 15 and attached to the center cross frame 15.

[0034] The blades 1 are attached between the left and right vertical frames 11, 12 at an incline so as to rise from the front side to the back side. The processed grooves 2, 3, 4 are formed from the back side of the louver door 10 toward the thickness direction of the door.

[0035] 3A, 3B, 3C, and 3D are a front view, a rear view, a left side view, and an enlarged plan view, respectively, of the right vertical frame 11. Note that the left vertical frame 12 is symmetrical to the right vertical frame 11, and therefore a description thereof will be omitted.

[0036] The right vertical frame 11 is a wooden board with a generally rectangular cross section. The length L2 in the left-right direction of the door is shorter than the length L1 in the thickness direction. This narrows the portion exposed on the front side of the louver door 10, giving it a slim impression.

[0037] A plurality of recesses 11a for inserting the blades 1 are formed on the inner surface of the right vertical frame 11. However, recesses 11a are not formed at the positions corresponding to the upper horizontal frame 13 and the auxiliary horizontal frame 16, the lower horizontal frame 14 and the auxiliary horizontal frame 17, and the middle horizontal frame 15 and the auxiliary horizontal frame 18. The recesses 11a have the same shape as the ends of the blades 1, and have a gap large enough to insert the blades and a depth large enough to hold the blades. The blades 1 inserted into the recesses 11a are reinforced with adhesive as necessary and are held securely. In addition, holes (not shown) for dowels for attaching the horizontal frames are formed on the inner surface of the right vertical frame 11, and the blades are assembled to the horizontal frames via the dowels.

[0038] Fig. 4 shows the upper horizontal frame 13 in (a) a front view, (b) a left side view, and (c) a perspective view. The upper horizontal frame 13 is a wooden material in which the upper frame portion 13a, which is the outermost frame portion, and the wing-shaped portion 13b are integrated vertically. The dashed line in the figure indicates the boundary between the upper frame portion 13a and the wing-shaped portion 13b. The upper frame portion 13a has a generally rectangular cross section, and the length L4 in the door vertical direction is shorter than the length L3 in the door thickness direction. This narrows the portion exposed on the surface side of the louver door 10, giving it a slim impression.

[0039] Furthermore, the blade-like portion 13b has a generally trapezoidal cross section, and has an inclined portion 13c on the front surface side that is generally the same as the blade 1. This makes the inclined portion 13c look like a blade when viewed from the front surface side. The lower end of the inclined portion 13c protrudes from the bottom surface of the blade-like portion 13b.

[0040] Fig. 5 shows the lower horizontal frame 14 in (a) a front view, (b) a left side view, and (c) a perspective view. The lower horizontal frame 14 is a wooden material in which the lower frame portion 14a, which is the outermost frame portion, and the wing-shaped portion 14b are integrated vertically. The dashed line in the figure indicates the boundary between the lower frame portion 14a and the wing-shaped portion 14b. The lower frame portion 14a has a generally rectangular cross section, and the length L6 in the door vertical direction is shorter than the length L5 in the door thickness direction. This narrows the portion exposed on the surface side of the louver door 10, giving it a slim impression.

[0041] Furthermore, the blade-shaped portion 14b has a generally trapezoidal cross section, and has an inclined portion 14c on the front surface side that is generally the same as the blade 1. This makes the inclined portion 14c look like a blade when viewed from the front surface side.

[0042] 6 shows (a) a front view, (b) a left side view, and (c) a perspective view of the center horizontal frame 15. The center horizontal frame 15 has a generally hook-shaped cross section, and the handhold 15b can be used as a handle. The front surface has an inclined portion 15a that is generally the same as the blade 1. This makes the inclined portion 14c look like a blade when viewed from the front surface.

[0043] Fig. 7 shows the auxiliary horizontal frame 16 in (a) a front view, (b) a left side view, and (c) a perspective view. The auxiliary horizontal frames 17 and 18 have the same configuration as the auxiliary horizontal frame 16, so a description thereof will be omitted. By standardizing the auxiliary horizontal frame, the processing cost can be reduced. The auxiliary horizontal frame 16 is a wooden material in which the auxiliary horizontal frame 16a and the auxiliary horizontal frame 16b are integrated vertically. The dashed line in the figure indicates the boundary between the auxiliary horizontal frame 16a and the auxiliary horizontal frame 16b.

[0044] The auxiliary horizontal frame 16a has a generally trapezoidal cross section, and has an inclined portion 16c on the front surface side that is generally the same as the blade 1. This makes the inclined portion 16c look like a blade when viewed from the front surface side. The lower end of the inclined portion 16c protrudes from the bottom surface of the auxiliary horizontal frame 16a.

[0045] The auxiliary horizontal frame 16b has a generally trapezoidal cross section, and has an inclined portion 16d on the front surface side that is generally the same as the blade 1. This makes the inclined portion 16d look like a blade when viewed from the front surface side. The lower end of the inclined portion 16d protrudes from the bottom surface of the auxiliary horizontal frame 16b.

[0046] 8A is a front view and FIG.8B is a left side view showing the blade 1. The blade 1 is a flat plate-like member, the long sides of which are chamfered.

[0047] 2(a) and (b), the machined groove 2 for attaching the hanging cup is within the ranges of the "door thickness length," "door up-down length," and "door left-right length" of the upper horizontal frame 13. Similarly, the machined groove 3 for attaching the hanging cup is within the ranges of the "door thickness length," "door up-down length," and "door left-right length" of the lower horizontal frame 14.

[0048] In addition, the processed grooves 4 for attaching the hinges are within the ranges of the "door thickness length", "door up-down length", and "door left-right length" of the upper horizontal frame 13 and auxiliary horizontal frame 16 combined, the "door thickness length", "door up-down length", and "door left-right length" of the lower horizontal frame 14 and auxiliary horizontal frame 17 combined, and the "door thickness length", "door up-down length", and "door left-right length" of the middle horizontal frame 15 and auxiliary horizontal frame 18 combined.

[0049] In this way, by using the upper cross frame 13, the lower cross frame 14, the middle cross frame 15, and the auxiliary cross frames 16, 17, and 18, a slim design is achieved while making it possible to attach the necessary parts.

[0050] The louver door 10 according to the first embodiment has left and right vertical frames 11, 12, upper and lower horizontal frames 13, 14, and multiple blades 1 arranged between the left and right vertical frames 11, 12. The left and right vertical frames 11, 12 are made of wood boards with a generally rectangular cross section, in which the length L2 in the left-right direction of the door is shorter than the length L1 in the door thickness direction, so that the left and right vertical frames have a narrow width when viewed from the front side, resulting in a slim design.

[0051] In addition, the upper horizontal frame 13 is made of a wood material that integrates the upper frame portion 13a, which has a substantially rectangular cross section and a length L4 in the vertical direction of the door shorter than the length L3 in the thickness direction of the door, and the blade-like portion 13b, which has a substantially trapezoidal cross section and an inclined portion 13c that is substantially the same as the blade 1, so that the width of the upper frame portion 13a exposed at the top when viewed from the front side is narrow and slim design. In addition, by integrating the blade-like portion 13b, the strength is increased, and the inclined portion 13c is made to look like the blade 1, resulting in a unified design. Furthermore, the size of the upper horizontal frame 13 (in the thickness direction of the door, the vertical direction of the door, and the left-right direction of the door) can be used to attach necessary parts.

[0052] In addition, the lower horizontal frame 14 is made of a wood material that integrates the lower frame portion 14a, which has a substantially rectangular cross section and a length L6 in the vertical direction of the door shorter than the length L5 in the thickness direction of the door, and the blade-shaped portion 14b, which has a substantially trapezoidal cross section and an inclined portion 14c that is substantially the same as the blade 1, so that the width of the lower frame portion 14a exposed at the bottom when viewed from the front side is narrow and slim design. In addition, by integrating the blade-shaped portion 14b, the strength is increased, and the inclined portion 14c is made to look like the blade 1, resulting in a unified design. Furthermore, the size of the lower horizontal frame 14 (in the thickness direction of the door, the vertical direction of the door, and the left-right direction of the door) can be used to attach necessary parts.

[0053] In addition, by having the central horizontal frame 15, which is a wooden material having a cross section of a hook shape with an inclined portion 15a substantially identical to that of the blade 1, the central horizontal frame 15 increases the strength, and the inclined portion 15a is made to look like the blade 1, resulting in a unified design. Furthermore, the size of the central horizontal frame 15 (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach necessary parts. The central horizontal frame 15 can also be used as a handle.

[0054] In addition, the auxiliary horizontal frames 16 (16a, 16b), 17, 18 are made of wood with a generally trapezoidal cross section having inclined portions 16c, 16d substantially identical to those of the blade 1, and the auxiliary horizontal frames 16, 17, 18 are arranged alongside the upper horizontal frame 13, the lower horizontal frame 14, and the middle horizontal frame 15, thereby increasing the strength of the door and creating a unified design by making the inclined portions 16c, 16d look like the blade 1. Furthermore, the sizes of the auxiliary horizontal frames 16, 17, 18 (in the door thickness direction, door up-down direction, door left-right direction) can be used to attach necessary parts.

[0055] (Embodiment 2) The louver door 20 according to the second embodiment will be described with reference to Figures 9 and 10. Figure 9 is a front view showing a folding door 200 using the louver door 20 according to the second embodiment. The folding door 200 is configured by combining four louver doors 20a, 20b, 20c, and 20d.

[0056] Next, the louver door 20 will be described in detail. Fig. 10 shows (a) a front view, (b) a rear view, and (c) a cross-sectional view along line BB of the louver door 20. The louver door 20 is composed of left and right vertical frames 21, 22, upper and lower horizontal frames 23, 24, and multiple blades 1 arranged between the left and right vertical frames 21, 22.

[0057] The upper horizontal frame 23 of the louver door 20 has the same configuration as the auxiliary horizontal frame 16 in the first embodiment (louver door 10). The lower horizontal frame 24 has approximately the same configuration as the auxiliary horizontal frame 17 in the first embodiment (louver door 10), and its underside extends to the lower end of the inclined portion to ensure strength. In other words, the upper horizontal frame 23 and the lower horizontal frame 24 are made of wood material with an approximately trapezoidal cross section, and have an inclined portion approximately the same as the wing 1. In other words, the upper end and lower end of the louver door 20 can be said to have a configuration similar to that of the louver door 10 excluding the upper horizontal frame 13 and the lower horizontal frame 14.

[0058] In the louver door 20 according to the second embodiment, the upper horizontal frame 23 and the lower horizontal frame 24 are made of a wooden material having a cross section of a generally trapezoidal shape with a sloping portion substantially the same as the blade 1, and therefore the upper horizontal frame 23 and the lower horizontal frame 24 increase strength, and the sloping portion can be made to look like the blade 1, resulting in a unified design. Furthermore, the sizes of the upper horizontal frame 23 and the lower horizontal frame 24 (in the door thickness direction, the door up-down direction, and the door left-right direction) can be used to attach necessary parts. Also, the blade 1 can be designed to be continuous from top to bottom.

[0059] In this way, the louver door of an embodiment of the present invention has a slim design with a narrow frame width when viewed from the front side, while preventing a decrease in strength and allowing the installation of necessary parts.

[0060] Although the louver door according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various other modifications are possible.

[0061] For example, the wing-like portions of the upper and lower stiles are not limited to one, but may be two or more connected in series. Similarly, the inclined portion of the middle stile is not limited to one, but may be two or more connected in series. The auxiliary stile may be one auxiliary stile made of wood with a roughly trapezoidal cross section, or two or more may be integrated together. These can be selected as appropriate depending on factors such as the strength of the entire door and the availability of space to attach necessary parts.

[0062] Furthermore, the auxiliary horizontal frames are not limited to being placed alongside all of the upper horizontal frames, lower horizontal frames and middle horizontal frames, but can be selected and placed as appropriate.

[0063] Furthermore, if you are using a normal hinged door, rather than a storage door (folding door or hinged door), in order to avoid the non-louvered strip being visible on the back side, 1) The back of each horizontal frame can be processed in the same louver pattern as the front, 2) The louver door of the present application is configured in such a way that two pieces are stacked on top of each other (the front and back vertical frames can also be integrated), The following are some possible reasons: In 1), the front side of the blade goes down (front) / up (back), but in 2), the front side of the blade goes down / down on the front and back, so the front and back of the door are not visible, allowing either configuration to be used according to the location and requirements, and the width of the frame visible from the front and back does not change. Furthermore, it is easy to ensure the thickness required for attaching latches, lever handles, etc. required for swing doors.

[0064] In addition, the shape of the inclined portion 15a of the center horizontal frame 15 should not be exactly the same as the other blades, but the design, such as the shape, material, and color tone, should be changed to indicate where the handle is located. [Explanation of symbols]

[0065] 1 Feather 2 Machining groove 3 Machining groove 4 Machining groove 10 Louver Door 11 Right stile 11a Recess 12 Left stile 13 Upper horizontal stile 13a Upper stile 13b Feather 13c Slope 14 Lower horizontal stile 14a Lower stile 14b Feather 14c Slope 15 Middle horizontal stile 15a Slope 15b Clues 16 Auxiliary horizontal frame 16a Auxiliary stile 16b Auxiliary stile 16c Slope 16d Slope 17 Auxiliary horizontal frame 18 Auxiliary horizontal frame 20 Louver Door 21 Right stile 22 Left stile 23 Upper horizontal stile 24 Lower horizontal stile 25 Middle horizontal stile 27 Auxiliary horizontal frame 100 Folding Door 200 Folding Door

Claims

1. A louver door having left and right vertical frames, upper and lower horizontal frames, and a plurality of blades arranged between the left and right vertical frames, A louver door characterized in that the left and right vertical frames are made of wooden boards with a roughly rectangular cross section whose length in the left-right direction of the door is shorter than its length in the thickness direction of the door.

2. The upper horizontal frame is a wooden material that is integrated with an upper frame portion having a generally rectangular cross section whose length in the vertical direction of the door is shorter than its length in the thickness direction of the door, and a blade-shaped portion having a generally trapezoidal cross section and an inclined portion substantially the same as that of the blade, The louver door as described in claim 1, characterized in that the lower horizontal frame is made of wood material that is integrated with a lower frame portion that is approximately rectangular in cross section and whose length in the door vertical direction is shorter than its length in the door thickness direction, and a blade-shaped portion that is approximately trapezoidal in cross section and has a slope portion that is approximately the same as the blade.

3. 3. The louver door according to claim 2, further comprising a central horizontal frame made of a wooden material having a substantially hook-shaped cross section and having a slope substantially identical to that of the blades.

4. The louver door as described in claim 2, characterized in that it has an auxiliary horizontal frame made of wooden material with a roughly trapezoidal cross section having a sloped portion roughly the same as that of the blade, and the auxiliary horizontal frame is arranged adjacent to at least one of the upper horizontal frame and the lower horizontal frame.

5. The louver door as described in claim 3, characterized in that it has an auxiliary horizontal frame made of wooden material having a substantially trapezoidal cross section with a sloped portion substantially the same as that of the blade, and the auxiliary horizontal frame is arranged attached to at least one of the upper horizontal frame, the lower horizontal frame and the middle horizontal frame.

6. 2. The louver door according to claim 1, wherein the upper and lower horizontal frames are made of wood material having a substantially trapezoidal cross section with a slope substantially identical to that of the blades.

Images