Door structure

Abstract

To secure a large door area for opening and closing a storage space without impairing the strength of a door body, and to secure a large volume of the storage space. [Solution] The door is composed of reinforcing vertical frames 26a, 26b that span the inner surfaces of two horizontal frames 23c, 23d that extend horizontally of the rectangular frame 23 of the door body 20, and reinforcing horizontal frames 27a, 27b-27h that span the inner surfaces of the vertical frames 23a, 23b that extend vertically at both left and right edges of the door body 20, and are located at least above and below the sleepers 12. The back sides of the panel bodies 21, 22 located on the open side of the door body 20 are adhesively bonded to each frame and sleeper 12, and the panel bodies 21, 22 located on the closed side of the door body 20 are divided into an adhesively bonded panel portion 21a that includes the portion that faces the sleeper 12, and a non-fixed panel portion 21b that consists of the remaining portion that does not face the sleeper 12 and is supported on the vertical frame 23b on the other side so that it can be opened and closed via a piano hinge 28.

Description

[Technical Field]

[0001] The present invention relates to a door structure, and in particular to a door structure for opening and closing a door opening formed in a wall separating a first space from a second space in a house, i.e., a dwelling (a building used for human habitation, including detached houses, apartment buildings, etc.) as defined in the Local Tax Act (Act No. 226 of 1950), a store, a factory, a warehouse, and other buildings. [Background technology]

[0002] BACKGROUND ART Conventionally, in houses, which are a general term for dwellings such as detached houses and apartment buildings, stores, factories, warehouses, and other buildings, a door body is installed so as to be able to open and close, for example, a door opening formed in a wall separating a first space such as a bedroom from a second space such as a hallway.

[0003] Also, among such door bodies, there is known one in which a part of the interior space is used as a storage space and can be opened and closed by a storage door, with the aim of improving the internal space (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 59-042296 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the door structure described above, the opening direction of the door itself, as determined by the door opening and closing hinge, and the opening direction of the small door that opens and closes the storage space, are the same direction. Therefore, there are restrictions on the installation position of the hinge that supports the small door, the positional relationship between the knob for the door and the knob for the small door, etc., which has created the problem that it is difficult to make the small door larger.

[0006] The object of the present invention is to provide a door structure that can secure a large door area for opening and closing a storage space without compromising the strength of the door body, thereby ensuring a large volume of the storage space. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a door structure for opening and closing a rectangular door opening formed in a wall surface that separates a first space and a second space within a house, the door opening being defined by a floor surface, a pair of vertical opening frame members that are located on three sides (vertical and horizontal) excluding the floor surface and extend vertically, and one horizontal opening frame member that extends horizontally, the door body comprising a pair of panel bodies that are located on the first space side and the second space side, respectively, and have four sides shorter than the four sides of the door opening, and a front panel that is located inside the panel bodies and joins the pair of panel bodies in a face-to-face state. a door knob unit that straddles the pair of panel bodies and has a latch portion that can be protruded from and retracted into the outer surface of the vertical frame on one side of the rectangular frame extending in the vertical direction so as to engage with a strike that is provided on the inner surface of the vertical frame on one side of the door opening that extends in the height direction; and a door opening hinge that straddles the inner surface of the vertical frame on the other side of the door opening that extends in the vertical direction and the vertical frame on the other side of the rectangular frame in the vertical direction, and a door swing defined by the door opening hinge. In the door body provided in the door opening so that the door opening is opened when the door knob unit rotates from the first space side to the second space side and closes the door opening when the door knob unit rotates from the second space side to the first space side, the door knob unit comprises a shaft portion that penetrates the pair of panel bodies via a rectangular sleeper fixed to the inner surface of the vertical frame on one side of the rectangular frame, and an operating knob body provided at both ends of the shaft portion, and the rectangular frame is located at both upper and lower edges of the pair of panel bodies and is formed between the inner surfaces of the two horizontal frames extending in the horizontal direction. and two or more reinforcing horizontal frames located above and below at least the sleepers, the panel body located on the open side of the door body having its back surface adhesively bonded to the frames and the sleepers, and the panel body located on the closed side of the door body having its back surface adhesively bonded to the sleepers and the sleepers, and the panel body located on the closed side of the door body having its back surface adhesively bonded to the sleepers and the sleepers, and the panel body located on the open side of the door body having its back surface adhesively bonded to the sleepers and the sleepers, and the panel body located on the closed ...The non-fixed panel portion is supported on the vertical frame on the other side via a piano hinge so as to be openable and closable. [Effects of the Invention]

[0008] According to the present invention, a large door area for opening and closing the storage space can be ensured without compromising the strength of the door body, and a large storage space volume can be ensured. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view of a door structure according to an embodiment of the present invention; [Figure 2] 2A-2A show a door structure according to the present embodiment, in which (A) is a cross-sectional view of the door body taken along line 2A-2A in FIG. 3, and (B) is an enlarged cross-sectional view of a main part of (A). [Figure 3] 1 is a front view of a door body showing a door structure according to an embodiment of the present invention; [Figure 4] 1 is a front view of a door body with a panel body removed, showing a door structure according to the present embodiment; [Figure 5] FIG. 10 is a front view of another door body with the panel body removed, showing the door structure according to the present embodiment. [Figure 6] 1 shows a door structure according to this embodiment, where (A) is a cross-sectional view of a key part showing an example of an intersection between a reinforcing vertical frame and a reinforcing horizontal frame, and (B) is a cross-sectional view of a key part showing another example of an intersection between a reinforcing vertical frame and a reinforcing horizontal frame. DETAILED DESCRIPTION OF THE INVENTION

[0010] Next, a door structure according to an embodiment of the present invention will be described with reference to the drawings.

[0011] In Figures 1 to 3, the door structure 1 opens and closes a rectangular door opening 5 formed in a wall surface 4 that separates a first space side 2 (e.g., the living room side) from a second space side 3 (e.g., the hallway side) within a house using a door body 20.

[0012] In this embodiment, the door opening 5 is defined by a floor surface 6, a pair of vertical opening frame members 7 and 8 extending vertically and located on the three sides, lengthwise and widthwise, excluding the floor surface 6, and one horizontal opening frame member 9 extending horizontally. Note that, although a horizontal opening frame member (not shown) extending horizontally may be provided in place of the floor surface 6, in recent years this is often not provided in view of barrier-free access.

[0013] The door body 20 is comprised of a pair of panel bodies 21, 22 located on the first space side 2 and the second space side 3, respectively, each having four sides shorter than the four sides of the door opening 5; a rectangular frame 23 located inside the panel bodies 21, 22 and consisting of two vertical and two horizontal frames 23a, 23b and two horizontal frames 23c, 23d along the four sides so as to join the pair of panel bodies 21, 22 in a face-to-face state; The door is provided with a doorknob unit 25 having a latch portion 24 that can be protruded from the outer surface of the vertical frame wood 23a on one side of the rectangular frame 23 extending vertically so as to engage with a strike 10 provided on the inner surface 7a of the vertical opening frame material 7 on one side extending in the height direction, and door opening / closing hinges 11 (at two locations, top and bottom) that are provided across the inner surface 8a of the vertical opening frame material 8 on the other side extending vertically of the door opening 5 and the vertical frame wood 23b on the other side of the rectangular frame 23 in the vertical direction.

[0014] As a result, the door swing direction is determined by the door opening / closing hinge 11 so that the door body 20 opens the door opening 5 when rotated from the first space side 2 to the second space side 3 (see "door opening" indicated by the arrow in Figure 2 (A)), and closes the door opening 5 when rotated from the second space side 3 to the first space side 2.

[0015] The door knob unit 25 includes an operating knob body 13 located outside a pair of panel bodies 21, 22 (front and back) via a rectangular sleeper 12 fixed to the inside surface 23e of a vertical frame 23a on one side of the rectangular frame 23. As a result, in conjunction with the rotation of one of the operating knob bodies 13 on the front or back, the latch portion 24 appears and disappears from the outside surface of the vertical frame 23a, engaging and disengaging with the strike 10, and enabling the door body 20 to be opened or closed.

[0016] As shown in Figure 4, the rectangular frame 23 comprises one or more (two in the figure) reinforcing vertical frames 26a, 26b that span between the inner surfaces of two horizontal frames 23c, 23d that are located at the upper and lower edges of the pair of panel bodies 21, 22 and extend horizontally, and two or more (eight in the figure) reinforcing horizontal frames 27a, 27b...27h that span between the inner surfaces of two vertical frames 23a, 23b that are located at the left and right edges of the pair of panel bodies 21, 22 and extend vertically, and are located above and below at least the sleepers 12.

[0017] The upper and lower ends of the vertical frames 23a and 23b of the rectangular frame 23 are connected to the left and right ends of the horizontal frames 23c and 23d by means of, for example, a "mortise and tenon" joint or a "three-piece" joint.

[0018] The reinforcing cross members 27a, 27b...27h have the same height H2 as the height H1 of the cross members 23c, 23d, and the uppermost and lowermost reinforcing cross members 27e and 27h are respectively positioned closely inside the cross members 23c, 23d. Furthermore, the reinforcing cross members 27a, 27b...27h are positioned at an equal (uniform) height H3 relative to the remainder of the overall height H of the door body 20 excluding the cross members 23c, 23d.

[0019] The upper and lower ends of the reinforcing vertical frames 26a, 26b are joined to the reinforcing horizontal frames 27e, 27h, for example, by a "cross-notched joint," and the left and right ends of the reinforcing horizontal frames 27a, 27b...27h are joined to the vertical frames 23a, 23b, for example, by a "cross-notched joint." In this case, the joining structure is arbitrary, such as by fastening them with screws using L-shaped metal fittings (not shown).

[0020] On the other hand, the intersections between the reinforcing vertical frames 26a, 26b and the reinforcing horizontal frames 27a, 27b...27h are basically perpendicular, and by using a ``cross-notched'' joint to remove half the thickness of each material and combine them, there is no change in the overall thickness.

[0021] As a result, of the pair of panel bodies 21, 22, the panel body 22 located on the open side of the door body 20 has its back surface adhesively bonded to the frame and sleepers 12. In contrast, the panel body 21 located on the closed side of the door body 20 is divided into an adhesively bonded panel portion 21a including the portion facing the sleeper 12, and an unfixed panel portion 21b consisting of the remaining portion not facing the sleeper 12. In addition, the unfixed panel portion 21b is supported by the vertical frame 23b on the other side via a piano hinge 28 so as to be able to open and close.

[0022] As a result, the door swing direction is determined by the piano hinge 28 so that the non-fixed panel portion 21b opens the inside of the door body 20 when rotated from the second space side 3 to the first space side 2 (see "door opening" indicated by the arrow in Figure 2 (A)), and closes the inside of the door body 20 when rotated from the first space side 2 to the second space side 3.

[0023] Therefore, the door body 20 has a storage compartment function whose interior is opened and closed by the non-fixed panel portion 21b, and also has a compartment storage function that is divided into multiple sections by the vertical and horizontal reinforcing frames 26a, 26b and the reinforcing horizontal frames 27a, 27b...27h. Moreover, by arranging the piano hinge 28 on the panel surface side (panel body 21 side) opposite the door opening and closing hinge 11, the door body 20 can have a function as a storage door that opens and closes over almost the entire surface except for the adhesive-jointed panel portion 21a that faces the sleeper 12.

[0024] On the other hand, in the door structure 1 applied to a general house, the inner surface 7a of the opening vertical frame material 7 on at least one side is provided with a door stop 14 that abuts against the edge of one side of the non-fixed panel portion 21b located on the first space side 2 to prevent further rotation when the door body 20 rotates from the second space side 3 to the first space side 2 by the door opening / closing hinge 11 to close the door opening 5.

[0025] This prevents the non-fixed panel portion 21b, which functions as a storage door, from accidentally rotating and opening the inside of the door body 20.

[0026] In this case, magnet plates 15 and 29 of different polarities are attached to the back surface of the non-fixed panel portion 21b on the inner side of the edge on one side thereof and to the back surface of the vertical frame 23a on one side of the rectangular frame 23 extending vertically.

[0027] This prevents the non-fixed panel portion 21b from accidentally rotating and opening the inside of the door body 20, even when the door body 20 is rotated from the first space side 2 to the second space side 3 and the non-fixed panel portion 21b moves away from the door stop 14.

[0028] On the other hand, in this embodiment, non-fixed panel portion 21b is not provided with a dedicated knob for opening and closing operations, etc. Therefore, coupled with the attachment of magnet plates 15, 29 to prevent accidental opening as described above, a certain degree of operating force is required, especially when opening non-fixed panel portion 21b.

[0029] Therefore, in this embodiment, as shown enlarged in Figure 2 (B), a certain amount of space W (for example, 4 mm) is provided between the outer surface of the vertical frame wood 23a on one side and the opening vertical frame material 7 on one side so that the door body 20 and the opening vertical frame material 7 on one side do not come into contact with each other when the door body 20 is opened or closed.

[0030] Therefore, by making edge 21c on one side of non-fixed panel portion 21b overhang (protrude) in a range W1 of 1 / 4 to 1 / 3 of the space W, a catch can be secured in place of a dedicated knob, and operation when opening non-fixed panel portion 21b can be facilitated. The reason why edge 21c protrudes in this range W1 of 1 / 4 to 1 / 3 of the space W is that if it protrudes less than this range, operability will be impaired, and if it protrudes more than this range, there is a risk of buffering.

[0031] As described above, in the door structure 1 according to this embodiment, the rectangular frame 23 of the door body 20 is composed of one or more reinforcing vertical frames 26a, 26b that are located at both the upper and lower edges of the pair of panel bodies 21, 22 and straddle the inner surfaces of the two horizontal frames 23c, 23d that extend laterally, and two or more reinforcing horizontal frames 27a, 27b-27h that are located above and below at least the sleeper 12 and straddle the inner surfaces of the two vertical frames 23a, 23b that are located at both the left and right edges of the pair of panel bodies 21, 22 and extend vertically. The back sides of the panels 21, 22 are adhesively bonded to each frame and sleeper 12, and the panel bodies 21, 22 located on the closed side of the door body 20 are divided into an adhesively bonded panel portion 21a including the portion facing the sleeper 12 and a non-fixed panel portion 21b consisting of the remaining portion not facing the sleeper 12 and supported on the vertical frame 23b on the other side so that it can be opened and closed via a piano hinge 28.This makes it possible to ensure a large door area for opening and closing the storage space without compromising the strength of the door body 20, and to ensure a large volume of the storage space.

[0032] In the door structure 1 according to this embodiment, the intersections of the reinforcing vertical frames 26a, 26b and the reinforcing horizontal frames 27a, 27b-27h are connected by a "cross notched joint" structure. In this case, for example, the second space side 3 of at least two reinforcing horizontal frames 27a, 27b located above and below the sleeper 12 is not recessed as shown in Figures 5 and 6(B), but the first space side 2 is recessed as shown in Figures 5 and 6(A).

[0033] This means that when the operating knob body 13 is gripped and the door body is closed from the second space side 3 toward the first space side 2, the operating load is applied to the adhesive surfaces between the panel body 22 and the reinforcing horizontal frames 27a, 27b. In this case, if the reinforcing horizontal frames 27a, 27b on the adhesive surface side have a recessed structure as shown in Figure 6(B), the adhesive area will be in the range of E1 + E2.

[0034] In contrast, as shown in Figure 6(A), if the reinforcing horizontal frames 27a, 27b on the adhesive side are not made concave, the adhesive area can be made into a wider range E3 closer to E1+E2, thereby ensuring high strength.

[0035] Such an operating load associated with the door closing operation is even more effective in the situation where the door body 20 has become larger (especially in the vertical direction) in recent years. In addition, with the increase in size described above, warping of the door body 20 may occur, especially during the dry winter season, when a heater such as an air conditioner is used on the first space side 2, which is the living room side.

[0036] This type of warping causes the top and bottom of the door body 20 to easily approach the first space 2 (in other words, the center of the door body 20 tends to bulge toward the second space), making it difficult to close the door body 20 (the top and bottom of the door body 20 come into contact with the door stop 14 first, preventing the latch portion 24 from fitting into the strike 10).

[0037] As a result, the operating load when closing the door body 20 is applied even more firmly, so by ensuring a wide adhesive area as described above, strength can be easily ensured even when such load increases.

[0038] Furthermore, in the door structure 1 according to this embodiment, the strength of the door body 20 can be ensured by the "cross-notched" joint between the reinforcing vertical frames 26a, 26b and the reinforcing horizontal frames 27a, 27b...27h, so it can be applied not only to doors that are fixed to pillars with hinges, but also to sliding doors that slide left and right, such as top-hanging hangers and bottom-loading door rollers.

[0039] The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the spirit and technical concept of the present invention. Such modifications will be described below in order.

[0040] (1) Fall prevention structure In the above embodiment, the intersection of the reinforcing vertical frames 26a, 26b and the reinforcing horizontal frames 27a, 27b-27h, which intersect vertically and horizontally, has the effect of suppressing a decrease in strength when the panel main body 21 on the first space side 2 is not glued.However, when items are stored in the storage space partitioned by these, there is a possibility that the stored items will tilt, particularly when the door main body 20 is opened and closed, and that the stored items will fall when the non-fixed panel portion 21b is opened.

[0041] Therefore, it is possible to provide a fall prevention function such as a wire extending in the lateral direction of the door body 20 between each of the reinforcing horizontal frames 27a, 27b-27h.

[0042] (2) Auxiliary reinforcement structure It is also possible to provide an auxiliary reinforcing function such as a wire extending in the vertical direction of the door body 20 between the reinforcing vertical frames 26a, 26b.

[0043] (3) Magnet substitute Furthermore, it is also possible to use a metal plate instead of the magnet plate 29 to improve the strength of the non-fixed panel portion 21b.

[0044] The embodiments of the present invention have been described above in detail with reference to the accompanying drawings. However, it goes without saying that the scope of the technical concept of the present invention is not limited to the embodiments described herein. It is clear that a person skilled in the art to which the present invention pertains can conceive of various changes, modifications, combinations, etc. within the scope of the technical concept of the present invention as defined in the claims. Therefore, such changes, modifications, combinations, etc., naturally fall within the scope of the technical concept of the present invention.

[0045] In the above description, when terms such as "vertical," "parallel," "plane," "horizontal," and "orthogonal" are used, these terms are not used in their strict sense. In other words, "vertical," "parallel," "plane," "horizontal," and "orthogonal" mean "substantially vertical," "substantially parallel," "substantially plane," "substantially horizontal," and "substantially orthogonal," allowing for design and manufacturing tolerances and errors.

[0046] Furthermore, in the above explanation, when descriptions such as "same," "equal," "different," "uniform," and "constant" are used to describe external dimensions or sizes, these descriptions do not have the strict meaning. In other words, "same," "equal," "different," "uniform," and "constant" mean "substantially the same," "substantially equal," "substantially different," "substantially uniform," and "substantially constant," allowing for design and manufacturing tolerances and errors.

[0047] Although not specifically illustrated, the present invention can be implemented with various modifications within the scope of the invention. [Industrial Applicability]

[0048] As explained above, the door structure of the present invention has the effect of ensuring a large door area for opening and closing a storage space without compromising the strength of the door body, and is therefore effective in ensuring a large storage space volume, and is useful for door structures in general, particularly door structures that open and close door openings formed in wall surfaces that separate a first space from a second space in houses, i.e., dwellings (which refer to buildings used for human habitation and include dwellings such as detached houses and apartment complexes) as defined in the Local Tax Act (Act No. 226 of 1950), stores, factories, warehouses, and other buildings. [Explanation of symbols]

[0049] 1 door structure 2. First space side 3 Second space side 4 Wall 5 Door opening 6 Floor 7 Opening vertical frame material 7a Inside surface 8 Opening vertical frame material 8a Inside surface 9 Opening horizontal frame material 10 strikes 11 Door hinge 12 sleepers 13 Operation knob body 14 per household 15 Magnetic Plate 20 Door body 21 Panel body 21a Adhesive joint panel section 21b Non-fixed panel section 21c Edge 22 Panel body 23 Rectangular Frame 23a vertical frame wood 23b vertical frame wood 23c horizontal frame wood 23e Inside surface 24 Latch section 25 Door knob unit 26a Reinforced vertical frame 26b Reinforced vertical frame 27a Reinforced cross beam 27b Reinforced cross beam 27c Reinforced cross beam 27d Reinforced horizontal frame 27e Reinforced cross frame 27f Reinforced horizontal frame 27g Reinforced horizontal frame 27h Reinforced horizontal frame 28 Piano Hinge 29 Magnetic Plate

Claims

1. A door structure in which a rectangular door opening formed in a wall surface that separates a first space side and a second space side in a house is opened and closed by a door main body, The door opening is The floor and A pair of vertical opening frame members extending vertically and one horizontal opening frame member extending horizontally, located on three sides (vertical and horizontal) excluding the floor surface; is defined by The door body is a pair of panel bodies positioned on the first space side and the second space side, respectively, each having four sides shorter than the four sides of the door opening; A rectangular frame consisting of two vertical and two horizontal frame members positioned inside the panel bodies and extending along the four sides to join the pair of panel bodies in a face-to-face state; a door knob unit that spans the pair of panel bodies and has a latch portion that can be protruded and retracted from the outer surface of the vertical frame wood on one side extending vertically of the rectangular frame so as to engage with a strike provided on the inner surface of the vertical frame wood on one side extending in the height direction of the door opening; a door opening / closing hinge provided across an inner surface of the vertical frame member on the other side of the door opening that extends in the vertical direction and the vertical frame member on the other side of the rectangular frame in the vertical direction; Equipped with a door body provided at the door opening such that a door swing direction determined by the door opening / closing hinge opens the door opening when the door swings from the first space side to the second space side, and closes the door opening when the door swings from the second space side to the first space side, The door knob unit is an operating knob body located outside the pair of panel bodies via a rectangular sleeper fixed to the inner surface of the vertical frame on one side of the rectangular frame; The rectangular frame is One or more reinforcing vertical frames are located at both upper and lower edges of the pair of panel bodies and extend laterally between the inner surfaces of the two horizontal frames; Two or more reinforcing horizontal frames are located at both the left and right edges of the pair of panel bodies, straddling the inner surfaces of the two vertical frames extending vertically, and positioned at least above and below the sleepers; Equipped with Of the pair of panel bodies, The panel body located on the open side of the door body has its back surface adhesively bonded to each frame and the sleeper, The panel body located on the closed side of the door body is divided into an adhesive-joined panel portion including a portion facing the sleeper and an unfixed panel portion consisting of the remaining portion not facing the sleeper, The non-fixed panel portion is supported on the vertical frame on the other side via a piano hinge so as to be openable and closable. A door structure characterized by:

2. The door structure according to claim 1, The opening vertical frame member on one side has a door stop provided on the inner surface of the door body that abuts against an edge of the one side of the non-fixed panel portion located on the first space side to prevent further rotation when the door body rotates from the second space side to the first space side by the door opening / closing hinge to close the door opening, The frame further includes magnet plates with opposite polarities attached to a back surface of the non-fixed panel portion located inside the edge of the one side and a back surface of the vertical frame wood on the one side extending vertically of the rectangular frame. A door structure characterized by:

3. The door structure according to claim 2, The door frame is made of a timber material, which is a timber frame with a thickness of 1 / 4 to 1 / 3. ... A door structure characterized by:

4. The door structure according to any one of claims 1 to 3, The intersecting portions of the reinforcing vertical frame and the reinforcing horizontal frame are connected by a cross-notched structure, and at least the two reinforcing horizontal frames located above and below the sleeper do not have a concave structure on the second space side. A door structure characterized by:

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