JP7373792B2 - door panel - Google Patents

Description

The present invention relates to door panels.

BACKGROUND ART Conventionally, so-called flush panel-shaped door panels have been known that have a structure in which a face material is attached to a core material because they are lighter in weight than door panels made of solid wood or the like. In such a door panel, since the core material is formed from a wood-based material, there is a problem in that it tends to warp due to moisture absorption and release, and the panel itself tends to warp.
For example, Patent Document 1 listed below discloses a door in which surface materials are fixed to each of the front and back surfaces of a core assembly provided with a rectangular frame. Further, this door has a structure in which metal-reinforced wood is provided inside the rod-shaped wood of the left and right vertical frame parts.

JP 2016-35139 Publication

However, in the door described in Patent Document 1, long metal reinforcing wood is provided on both the left and right sides, so although it is possible to reduce warping (vertical warping) along the door height direction, There is a concern that warping (width warping) may occur.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a door panel that can reduce warpage along the door width direction while reducing weight.

In order to achieve the above object, the door panel according to the present invention has a panel core material having a four-periphery frame including an upper frame material, a lower frame material, and vertical frame materials on both sides in the door width direction, which are made of a wood-based material. , face materials provided on both sides of the panel core material in the door thickness direction, and the panel core material is provided with a horizontal rail provided along the upper frame material on the lower side of the upper frame material. and a metal reinforcing material provided with a fitting groove into which the fitted portion of the horizontal beam material is fitted , and the reinforcing material has a length dimension along the door width direction that is equal to the door width. The horizontal beam has a dimension of 3/10 to 8/10 of the width of the door, and is located at the center in the width direction of the door, and the length of the horizontal beam is larger than the length of the reinforcement. It is characterized by

By having the above-described configuration, the door panel according to the present invention can reduce warpage along the door width direction while reducing weight.

(a) is a schematic front view schematically showing an example of a door panel according to an embodiment of the present invention, and (b) is a schematic front view schematically showing an example of a panel core material included in the door panel. be. (a) is a partially broken schematic cross-sectional view corresponding to the X1-X1 line arrow in FIG. 1(a), and (b) is a partially broken schematic cross-sectional view corresponding to the Z section in (a). Figure 1(c) is a partially broken schematic cross-sectional view corresponding to the X2-X2 line arrow in FIG. 1(b), and (d) corresponds to the Y-Y line arrow in FIG. 1(b). (e) is a partially broken schematic exploded longitudinal sectional view corresponding to (d). It is a partially broken schematic vertical sectional view schematically showing a state in which the door panel has been constructed.

Embodiments of the present invention will be described below based on the drawings.
Note that in some of the figures, some detailed symbols attached to other figures are omitted.
Furthermore, in the following embodiments, directions such as the vertical direction will be described with reference to the state in which the door panel according to the present embodiment is constructed.

1 to 3 are diagrams schematically showing an example of a door panel according to this embodiment.
As shown in FIG. 1(b), the door panel 10 according to the present embodiment includes an upper frame member 13, a lower frame member 14, and vertical frame members 15, 15 on both sides in the door width direction, which are made of a wood-based material. A panel core material 11 having a four-periphery frame 12 is provided. Furthermore, as shown in FIGS. 1(a) and 2(a), the door panel 10 includes face members 36 provided on both sides of the panel core material 11 in the door thickness direction. That is, the door panel 10 is not shaped like a solid plate but has a hollow so-called flush panel shape. With such a configuration, the door panel can be made lighter than a solid plate-shaped door panel made of solid wood or the like.

In addition, the panel core material 11 is provided along the upper end side of the upper frame material 13 on the lower side of the upper frame material 13 as shown in FIG. 1(b) and FIG. 2(d). A crosspiece 20 is provided. Further, the panel core material 11 includes an upper end reinforcing member 21 as a metal reinforcing member provided with a fitting groove 22 into which the fitted portion 20b of the upper end horizontal beam member 20 is fitted. With this configuration, warping of the upper end portion of the door panel 10 along the door width direction (width warping in which different parts of the upper end portion in the door width direction are shifted from each other in the door thickness direction) can be prevented. It can be reduced. As a result, even when the door panel 10 is used as a sliding door in which the upper end 10a is inserted into the guide groove 4a of the upper frame 3 and slid, the upper end 10a and the guide groove 4a due to the width warping on the upper end side Excessive interference can be suppressed and sliding can be performed smoothly. For example, when the door panel 10 is a hinged door in which the hanging base side at one end in the width direction of the door is rotatable, the gap between the upper end 10a and the door stop of the upper frame due to the width warpage on the upper end side is It can be made less likely to occur. In addition, since the upper end reinforcing member 21 is provided below the upper frame member 13, it is difficult to join the upper frame member 13 to the vertical frame members 15, 15 on both sides, and to embed it in the upper end of the panel core member 11. It is possible to prevent interference with the installation of mechanical parts and the like that are provided in the same manner. In addition, the specific structure of the upper end horizontal beam material 20 and the upper end reinforcing material 21 is mentioned later.

As shown in FIG. 3, this door panel 10 constitutes a sliding door device 1 and is installed as a sliding door for opening and closing an entrance/exit 9 provided in a building such as a residence. In this embodiment, the door panel 10 has a door roller 39 at its lower end, and its upper end 10a is inserted into the guide groove 4a of the upper frame 3, that is, the door panel 10 is constructed as a lower load type. There is. With such a configuration, the upper end portion 10a is inserted into the guide groove 4a of the upper frame 3 and guided, so it becomes susceptible to the influence of width warping on the upper end side. However, since the upper end reinforcing member 21 is provided, , it is possible to suppress width warping of the upper end side portion of the door panel 10.
The sliding door device 1 includes a door frame 2 including an upper frame 3. This door frame 2 includes a door end side vertical frame (not shown) provided on the door end side of the door panel 10, a door end side vertical frame 6 provided on the door end side of the door panel 10, and the door panel 10 in an open state. A middle mullion (middle vertical frame) 7 is provided on the side of the entrance/exit 9 of the wing wall in which the main body is housed. Further, the door frame 2 is provided with a lower rail 5 installed on the floor side and provided with a guide groove 5a in which the door wheel 39 engages in a freely movable manner. This guide groove 5a is provided so as to open upward and extend along the door width direction. Furthermore, the illustrated example shows an example in which the lower rail 5 is embedded between flooring materials 8, 8 disposed on the subfloor surface.

The guide groove 4a of the upper frame 3 of the door frame 2 is provided so as to open downward and extend along the door width direction. The width of the guide groove 4a is made slightly larger than the thickness of the door panel 10 so that the upper end 10a of the door panel 10 can be received and the upper end side of the door panel 10 can be smoothly guided. You can leave it there. Moreover, the groove depth of this guide groove 4a may be an appropriate dimension so that the upper end portion 10a of the door panel 10 can be held.
Further, the guide groove 4a is defined by an upper rail 4 that is fitted into a groove provided in the upper frame 3. The upper rail 4 includes a thin plate-shaped groove bottom piece that defines the groove bottom of the guide groove 4a, and thin plate-shaped both side pieces that define both sides of the guide groove 4a in the groove width direction.

In addition, although the example in the figure shows an example in which a hanging wall hanging from the ceiling is provided above the upper frame 3, the upper frame 3 may be attached to or embedded in the ceiling, or the upper rail 4 may be attached to the ceiling. It may also be installed directly on the ceiling or embedded. In other words, the door height dimension of the door panel 10 may be determined according to the ceiling height from the floor to the ceiling.
Further, instead of the above-mentioned embodiment in which the upper rail 4 that partitions the guide groove 4a is provided on the upper frame 3, the guide groove may be provided directly in the upper frame 3. For example, the upper rail 4 may function as an upper frame.
Further, the door frame 2 on which the door panel 10 is installed is not limited to the structure described above, and various other modifications are possible. Further, although the illustrated example shows an example in which the door panel 10 is installed in a side wall, it may be installed in a door pocket or an outset manner. Further, although the illustrated example shows an example in which one door panel 10 is arranged in a single-sliding pattern, it may also be possible to provide a plurality of door panels 10 arranged in a drawing pattern or a sliding pattern. .

As shown in FIGS. 1(a) and 3, the door panel 10 has a substantially rectangular flat plate shape that is elongated in one direction (vertical direction).
The door height dimension (length dimension) of this door panel 10 may be a dimension corresponding to the opening height of the doorway 9 that is opened and closed by the door panel 10, and may be a standard door height dimension, for example, about 1700 mm to 2100 mm. . Further, the door panel 10 may constitute a high door whose door height is approximately the same as the ceiling height, for example, approximately 2300 mm to 3000 mm. Further, the door width dimension W of the door panel 10 may be an appropriate dimension depending on the opening width of the doorway 9, for example, it may be about 500 mm to 1500 mm, or it may be relatively large, for example, 700 mm. Any of the above may also be used. Further, the thickness of the door panel 10 may be approximately 20 mm to 40 mm.

As shown in FIG. 1(a), the door rollers 39 of the door panel 10 are provided at each of both ends in the door width direction at the lower end of the door panel 10. These door wheels 39, 39 are rotatable around an axis along the door thickness direction. Furthermore, these door wheels 39, 39 are recessed door roller units 38, 38 that are fitted in mounting recesses 28, 28 (see FIG. 1(b)) provided at the lower end of the door panel 10. It is rotatably installed. As shown in FIG. 1(b), the mounting recesses 28, 28 are opened toward the outside and downward in the door width direction at both ends in the door width direction at the lower end of the door panel 10 (panel core material 11). It is set up like this. At both ends in the door width direction at the lower end of the panel core material 11, door roller mounting bases 27, 27, on which the door roller units 39, 39 are fixed with fasteners such as screws, are arranged so as to partition mounting recesses 28, 28. It is provided.

Further, as shown in FIG. 1(a), pull portions 37 are provided on both sides of the door end side of the door panel 10 in the door thickness direction, which are operated when opening and closing. These pull portions 37 may be in the form of a recessed part provided so that the handle recesses are open on both sides in the thickness direction of the door, or in the form of a rod (bar shape) provided in an attached manner on both sides in the thickness direction of the door and extending in the vertical direction. It may be equipped with a grip part. These pull portions 37 are fixed to a pull attachment base 26 (see FIG. 1(b)) provided on the panel core material 11 using fixing devices such as screws. In addition, mechanical components such as a deceleration mechanism that decelerates the door panel 10 moving in both or one of the opening and closing directions and a support mechanism that assists the movement of the door panel 10 are embedded in the upper end of the panel core material 11. It is also possible to have a configuration in which a mounting recess or a mounting base is provided.

The upper frame member 13 of the four-periphery frame 12 is provided at the upper end of the panel core member 11 so as to extend in the door width direction. The lower frame member 14 of the four-periphery frame 12 is provided at the lower end of the panel core member 11 so as to extend in the door width direction. The upper frame member 13 and the lower frame member 14 are not limited to one piece, but may be formed by joining a plurality of pieces vertically. The vertical frame members 15, 15 on both sides of the four-periphery frame 12 are provided so as to extend in the door height direction at both end portions of the panel core material 11 in the door width direction. These vertical frame members 15, 15 are not limited to one piece, but may be formed by joining a plurality of pieces vertically or in the door width direction.
In addition, in this embodiment, as shown in FIGS. 1(b) and 2(a), the end portions of the panel members 36 are formed on the outer surfaces of the vertical frame members 15, 15 on both sides facing outward in the door width direction. It has a structure in which insertion grooves 15a, 15a to be inserted are provided over the entire length. These insertion grooves 15a, 15a on both sides in the door width direction are provided so as to open outward in the door width direction.

The facing material 36 may be attached to the four peripheral surfaces of the panel core material 11 so that the four peripheral surfaces of the door panel 10 (both sides in the door thickness direction and both end surfaces in the door width direction) serve as decorative surfaces. This face material 36 may have a configuration in which bending grooves are provided at positions corresponding to the corners of the panel core material 11 on the back side. In addition, although the example shown in the figure shows an example in which the four circumferential surfaces are constructed by two panels 36, 36 provided on both sides of the panel core material 11 in the door thickness direction, one panel core material 36 forms the four circumferential surfaces. It is also possible to form a surface. In this case, one vertical frame member 15 may not have the insertion groove 15a.
Further, in this embodiment, the surface material 36 is a paintable base surface 36a that can be painted. With such a configuration, it is possible to paint in a desired color pattern at the facility of a builder such as a construction company or at the construction site. Further, when such a coating is applied, it is likely to warp, but since the upper end reinforcing material 21 is provided, it is possible to suppress the width warping of the upper end side portion of the door panel 10.

As shown in FIG. 2(b), the surface material 36 includes a surface base material 36b such as a wood board such as MDF (medium density fiberboard) or a fiber reinforced resin layer containing a reinforced fiber sheet such as glass fiber. A base sheet 36c constituting a painting base surface 36a may be provided on the surface side.
Such a base sheet 36c may be one in which a pattern layer 36e, a nonwoven fabric 36f, and a surface protection layer 36g are laminated in this order on the front side of a resin sheet 36d made of vinyl chloride, polyethylene, polypropylene, or the like. The pattern layer 36e may be a pattern imitating a natural material such as a wood grain pattern, a stone grain pattern, a leather pattern, a cork pattern, or any other pattern. The nonwoven fabric 36f and the surface protection layer 36g are provided so that the pattern of the pattern layer 36e described above is visible. The nonwoven fabric 36f functions as a paint retention layer that retains paint. The nonwoven fabric 36f may have an appropriate basis weight from the viewpoint of paint retention and visibility of the pattern of the pattern layer 36e. The surface protective layer 36g may be provided so that paint applied from the surface can penetrate into the nonwoven fabric 36f. If such a structure is provided with the surface protective layer 36g, the scratch resistance of the painted base surface 36a can be improved.

Note that the surface protective layer 36g is preferably transparent, and may be colored and transparent by adding a coloring agent. Further, the surface protective layer 36g may be translucent to the extent that the pattern of the pattern layer 36e is visible. Further, although the illustrated example shows an example in which an embossed uneven pattern is provided on the surface of the base sheet 36c that becomes the painting base surface 36a, the present invention is not limited to such an embodiment.
Further, the paint applied to the base sheet 36c may be a stain-based paint that can be colored so that the pattern of the pattern layer 36e can be visually recognized. Further, the base sheet 36c may have a configuration in which both or one of the pattern layer 36e and the surface protection layer 36g is not provided, and the base sheet 36c constituting the painted base surface 36a may have various other configurations. There may be. Further, instead of the base sheet 36c that constitutes the painted base surface 36a, various decorative sheets that constitute a decorative surface may be provided.

The upper frame member 13 and lower frame member 14 of the four-peripheral frame 12 and the vertical frame members 15, 15 on both sides are joined in a so-called vertically-shaped configuration, as shown in FIG. 1(b). In other words, each longitudinal end surface of the upper frame member 13 and the lower frame member 14 is brought into contact with the inner surfaces of the upper and lower end parts of the vertical frame members 15 and 15 on both sides facing each other, and the upper frame member 13 and the lower frame member The material 14 and the vertical frame members 15, 15 on both sides are joined. Note that the upper frame member 13 and the lower frame member 14 and the vertical frame members 15, 15 on both sides may be joined using a fixing device such as a screw or a staple (so-called U-needle), an adhesive, or the like.
In this embodiment, the panel core materials 11 are provided at intervals in the door height direction from each other on the lower side of the upper end horizontal beam material 20 provided on the lower side of the upper frame material 13, and the vertical frame materials 15 on both sides, 15, a first horizontal member 16 and a second horizontal member 17 are provided so as to span between the horizontal members 15 and 15. Both ends in the longitudinal direction (both ends in the door width direction) of the first horizontal beam member 16 and the second horizontal beam member 17 are attached to the vertical frame members 15, 15 on both sides using fixing tools, adhesives, etc. similar to those described above. It may also be joined.

Further, the panel core material 11 has a structure in which a core material 35 is arranged in a space partitioned by the first horizontal beam material 16, the second horizontal beam material 17, and the vertical frame materials 15, 15 on both sides. . This core material 35 may be made of a foam molded body made of a foamed resin material such as foamed urethane, but in this embodiment, it is a collection of a large number of hollow cylindrical cells that are open on both sides in the thickness direction of the panel. The core material 35 is formed into a honeycomb shape. In other words, the core material 35 is a so-called paper core. The illustrated example shows an example in which the hollow cylindrical cells of the core material 35 are honeycomb-shaped (hexagonal), but they may also be wavy, rectangular, or cylindrical. etc., various cell shapes may be used. Further, the core material 35 may be fixed to the first horizontal beam material 16, the second horizontal beam material 17, and the vertical frame materials 15, 15 on both sides using a fixing tool, an adhesive, or the like similar to the above.

Further, the panel core material 11 extends in the door height direction between the second horizontal beam material 17 and the lower frame material 14, and is connected to outer vertical beam materials 29, 29 provided at both ends in the door width direction, and these outside vertical beam materials 29, 29. Inner vertical beam members 30, 30 are provided along the center side of the vertical beam members 29, 29 in the door width direction. Moreover, in this embodiment, the panel core material 11 is provided with metal vertical reinforcing members 31, 31 provided so as to extend in the door height direction along these inner vertical beam members 30, 30. With such a configuration, it is possible to reduce warpage along the door height direction on both sides in the door width direction (vertical warpage in which different locations in the door height direction are shifted from each other in the door thickness direction). Both ends of the outer vertical bars 29, 29 and the inner vertical bars 30, 30 in the longitudinal direction (up and down direction) are fixed to the second horizontal bars 17 and the lower frame material 14 using fixing tools, adhesives, etc. similar to those described above. It may be joined using The outer vertical beam members 29, 29 on both sides in the door width direction are provided at approximately equal intervals with each vertical frame member 15, 15 adjacent to each other on the outside in the door width direction. In other words, the outer vertical beam members 29, 29 on both sides are provided in symmetrical positions in the left-right direction (in the door width direction). In addition, the specific structure of the inner vertical beam members 30, 30 and the vertical reinforcing members 31, 31 will be described later.

In addition, the panel core material 11 has a plurality of partitions (in the illustrated example, three partitions) that divide the space partitioned by the second horizontal beam 17, the bottom frame material 14, and the inner vertical beams 30, 30 on both sides into a plurality of sections in the door height direction. ) is provided with a central horizontal beam member 18. Both ends in the longitudinal direction (both ends in the door width direction) of these central horizontal bars 18 may be joined to the inner vertical bars 30, 30 on both sides using a fixing tool, adhesive, etc. similar to the above. . In addition, core members 35 similar to those described above are disposed in each space divided into a plurality of spaces in the door height direction by these central horizontal beam members 18.
In addition, the panel core material 11 has a space partitioned by the second horizontal frame material 17, the lower frame material 14, the vertical frame materials 15 on both sides, and each of the outer vertical frame materials 29, 29 adjacent to each vertical frame material 15. A plurality of (in the illustrated example, three) end-side horizontal beams 19 are provided that are divided into a plurality of sections in the door height direction. These end-side horizontal bars 19 are provided so as to be located at the same height as the center-side horizontal bars 18. In addition, both ends in the longitudinal direction (both ends in the door width direction) of these end-side horizontal bars 19 are joined to the vertical frame members 15 and the outer vertical bars 29 using the same fasteners, adhesives, etc. as described above. It may also be something you have.

The above-mentioned pull attachment base 26 is provided so as to be located on the outside in the door width direction of the outer vertical beam member 29 on the door edge side. In the illustrated example, the handle mounting base 26 is connected to a vertical bar section provided so as to extend downward from the lower surface of the end side horizontal bar member 19 arranged approximately at the center in the door height direction, and this vertical bar section. It has a structure including a horizontal beam part provided so as to span between the lower end part of the door and the vertical frame member 15 on the door edge side. Note that the handle attachment base 26 is not limited to such a configuration. Further, a similar structure may be provided in which a similar handle mounting base 26 is provided on the door bottom side.
In addition, although the illustrated example shows an example in which the core material 35 is not provided in each space partitioned into a plurality of spaces in the door height direction by these end-side horizontal beam members 19, a structure in which a core material 35 similar to the above is provided is shown. You can also use it as

In addition, the dimensions along the door thickness direction of the four-periphery frame 12, each of the horizontal beams 16, 17, 18, 19, each of the mounting bases 26, 27, the outer vertical beams 29, and the core material 35 that constitute the panel core material 11 are as follows: Each surface in the door thickness direction has approximately the same dimensions so that each surface is approximately the same plane.
In addition, the width dimensions perpendicular to the longitudinal direction and the door thickness direction of each frame material 13, 14, 15, 15, each horizontal bar material 16, 17, 18, 19, and outer vertical bar material 29 constituting the four-periphery frame 12 are as follows: The dimensions may be determined as appropriate from the viewpoint of strength and weight reduction. In this embodiment, the width dimensions of the frame members 13, 14, 15, 15 constituting the four-periphery frame 12 are approximately the same, and the horizontal members 16, 17, 18, 19 and an example in which the width dimension is larger than that of the outer vertical beam member 29 is shown. In the illustrated example, the width of each of the frame members 13, 14, 15, 15 constituting the four-periphery frame 12 is approximately twice the width of each of the horizontal members 16, 17, 18, 19 and the outer vertical members 29. Although an example is shown, the embodiment is not limited to this.

In addition, each of the frame members 13, 14, 15, 15, each of the mounting bases 26, 27, each of the horizontal bars 16, 17, 18, 19, the outer vertical bars 29, and the upper end horizontal bar that will be described later The material 20 and the inner vertical beam material 30 are formed from an appropriate wood-based material. Examples of wood-based materials include wood laminates such as plywood and LVL (laminated veneer lumber), wood boards such as PB (particle board), and wood fiberboards such as MDF (medium density fiberboard) and hardboard. It will be done. The wood-based material may also be a wood powder/plastic composite (WPC), which is a synthetic resin material containing wood powder, an inorganic filler, a compatibilizer, a coloring agent, etc. in a predetermined content ratio. .
In this embodiment, the upper end horizontal beam member 20 and the inner vertical beam member 30, which will be described later, are formed from a veneer laminated material. With such a configuration, the strength of the upper end horizontal bar member 20 and the inner vertical bar member 30 can be improved compared to those formed from medium density fiberboard or particle board.
Further, for example, each of the frame members 13, 14, 15, and 15 constituting the four-periphery frame 12, which requires relatively high strength, may be formed from a wood laminate such as a veneer laminate. Further, each of the horizontal members 16, 17, 18, 19 and the outer vertical member 29 may be formed from a wooden board such as particle board.

As shown in FIG. 1, the upper end reinforcing member 21 is elongated so as to extend in the door width direction.
In this embodiment, the upper end reinforcing material 21 is such that the length L along the door width direction is 3/10 to 8/10 of the door width W, and is located at the center side in the door width direction. It is set in. With such a configuration, width warping of the upper end side portion of the door panel 10 can be effectively suppressed compared to a case where the length dimension L of the upper end reinforcing member 21 is made too small. Furthermore, compared to a structure in which the length dimension L of the upper end reinforcing material 21 is too large, the weight can be reduced, and it can be easily incorporated as a common component into door panels 10 having different door width dimensions W. . In addition, instead of such a mode, the upper end reinforcing member 21 may be provided over substantially the entire area between the vertical frame members 15, 15 on both sides.

Further, in this embodiment, the upper end reinforcing member 21 is arranged so that the insertion groove 22 opens downward, and partitions the groove bottom side of the insertion groove 22, as shown in FIG. 2(d). The groove bottom piece 23 is held between the upper frame member 13 and the upper end horizontal member 20. With such a configuration, the upper end reinforcing member 21 can be firmly held by the upper frame member 13 and the upper end horizontal member 20, and it is possible to suppress the upper end reinforcing member 21 from falling off. Thereby, it is not necessary to fix the upper end reinforcing member 21 to the upper end horizontal beam member 20 using fixing tools such as staples or screws, adhesives, etc., and the ease of assembly can be improved. In other words, this upper end reinforcing member 21 is not fixed to the upper end horizontal bar member 20 with a fixing tool, an adhesive, an adhesive material, etc., and the groove bottom piece portion 23 is formed between the upper frame member 13 and the upper end horizontal member member 20. It may be fixed by being sandwiched. In addition, since the upper end reinforcing member 21 is provided in contact with the lower surface of the upper frame member 13, the upper end reinforcing member 21 is provided with a gap between the upper end reinforcing member 21 and the upper frame member 13. Width warping on the upper end side of the panel 10 can be effectively suppressed. Note that when the upper end horizontal beam member 20 and the upper end reinforcing member 21 are provided along the upper frame member 13, a gap of about 100 mm or less, preferably about 50 mm or less is provided between them and the upper frame member 13. It may be something.

As shown in FIGS. 2(d) and 2(e), this upper end reinforcing material 21 is provided in a continuous manner so as to hang downward from both side edges in the groove width direction of the groove bottom piece part 23, and It has side pieces 24, 24 that partition both sides. The upper end reinforcing member 21 has a substantially U-shape (U-shape) when viewed in the longitudinal direction by the side pieces 24, 24 and the groove bottom piece 23. The groove bottom piece 23 and both side pieces 24 are formed into thin plate shapes. In the illustrated example, the groove bottom piece 23 and both side pieces 24, 24 have approximately the same thickness dimension. The thickness of the groove bottom piece 23 and both side pieces 24, 24 may be set to an appropriate thickness from the viewpoint of strength or weight reduction, for example, from about 0.5 mm to 3.0 mm. It may be about 1.0 mm to 2.0 mm, preferably about 1.0 mm to 2.0 mm.
Further, the upper end reinforcing member 21 may be formed from an appropriate steel plate such as SPCC, or may be formed from a plated steel plate such as a galvanized steel plate (SECC) that has been subjected to an appropriate surface treatment.

In addition, the dimension of this upper end reinforcing material 21 along the door thickness direction (dimension from the outer surface of one side piece 24 to the outer surface of the other side piece 24) is such that each surface in the door thickness direction is the upper frame member. The dimensions are approximately the same as the dimensions along the door thickness direction of the upper frame member 13 so that the upper frame member 13 is substantially flush with each surface in the door thickness direction.
Further, the dimension of the upper end reinforcing material 21 along the door height direction may be an appropriate dimension from the viewpoint of strength and weight reduction. In the illustrated example, the dimension of the upper end reinforcing member 21 along the door height direction is approximately 1/2 of the upper end horizontal beam member 20 to be described later, but it is not limited to such an embodiment.
Further, the groove width dimension along the door thickness direction of the insertion groove 22 of the upper end reinforcing material 21 is set such that the insertion portion 20b of the upper end horizontal beam material 20 can be received. The dimensions correspond to the dimensions along the door thickness direction. The groove width dimension of this fitting groove 22 may be slightly larger than the dimension along the door thickness direction of the fitting part 20b.
Further, the groove depth dimension of the fitting groove 22 along the door height direction is set according to the dimension of the fitting part 20b along the door height direction so that the fitting part 20b of the upper end horizontal beam member 20 can be received. ing. The groove depth dimension of the fitting groove 22 may be slightly larger than the dimension of the fitting part 20b along the door height direction.

The upper end horizontal beam member 20 is elongated so as to extend in the door width direction. In this embodiment, the length dimension of the upper end horizontal beam member 20 is made larger than the length dimension L of the upper end reinforcing member 21 and smaller than the length dimension of the upper frame member 13. Further, upper end vertical members 25, 25 to which both longitudinal ends of the upper end horizontal member 20 are fixed to the panel core member 11 are provided across between the upper frame member 13 and the first horizontal member 16. The structure is as follows. Both ends in the longitudinal direction (both ends in the door width direction) of the upper end horizontal bar member 20 may be joined to these upper end vertical members 25, 25 using a fixing tool, an adhesive, etc. similar to those described above. Further, both longitudinal ends of the upper end vertical bars 25, 25 (both ends in the door height direction) are joined to the upper frame member 13 and the first horizontal bar member 16 using the same fixing tool, adhesive, etc. as described above. It can be anything. In addition, the illustrated example shows an example in which the upper end vertical bars 25, 25 are constructed by joining a plurality of bars in the door width direction. In addition, an example is shown in which the upper end vertical bars 25, 25 are located approximately directly above the outer vertical bars 29, 29 and the inner vertical bars 30, 30 provided on both sides in the door width direction. . Note that these upper end vertical beam members 25, 25 may constitute a mounting base for various mechanical components provided at both or one of the upper end portions of the door panel 10 in the door width direction. In other words, the upper end horizontal beam member 20 and the upper end reinforcing member 21 are arranged on the center side in the door width direction so that various mechanical parts provided at both or one of both ends in the door width direction of the upper end of the door panel 10 can be attached. It may be provided only at the site.

Further, in the present embodiment, the upper end horizontal beam member 20 has a width dimension along the door height direction that is larger than a groove depth dimension of the insertion groove 22 of the upper end reinforcing member 21. In the illustrated example, the width dimension of the upper end horizontal beam member 20 along the door height direction is approximately the same as the width dimension of the upper frame member 13 along the door height direction, and approximately twice the groove depth dimension of the insertion groove 22. Although this example shows the dimensions, the dimensions are not limited to these.
Further, in this embodiment, the fitted portion 20b of the upper end horizontal beam member 20 is formed in the groove of the fitting groove 22 so that the recessed step portions 20c, 20c for receiving the respective side pieces 24, 24 of the upper end reinforcing member 21 are formed. The dimension along the width direction is smaller than that of the base portion 20a as another portion. With such a configuration, the face members 36 on both sides in the door thickness direction can be brought into stable contact with the base 20a of the upper end horizontal beam member 20. Furthermore, in this embodiment, as described above, since the upper end horizontal beam member 20 is formed from a laminated veneer material, the recessed step portions 20c, 20c can be easily processed.

The dimensions of the base 20a of the upper end horizontal beam member 20 along the door thickness direction are such that each surface of the upper frame member 13 in the door thickness direction is approximately coplanar with each surface of the upper frame member 13 in the door thickness direction. The dimension is approximately the same as the dimension along the door thickness direction.
Further, the fitted portion 20b of the upper end horizontal beam member 20 is provided so as to be continuous with the upper frame member 13 side of the base portion 20a. The fitted portion 20b has a dimension along the door thickness direction that is larger than that of the base portion 20a due to recessed step portions 20c, 20c provided in a stepped manner from each surface of the base portion 20a in the door thickness direction toward the center side in the door thickness direction. It is considered small. The step size of these recessed step portions 20c, 20c along the door thickness direction is a size corresponding to the thickness of the side pieces 24, 24 so that the side pieces 24, 24 of the upper end reinforcing material 21 can be received. It is said that
In addition, a suitable spacer material is provided in the gap between the upper surface of the fitted portion 20b of the upper end horizontal beam member 20 formed on both sides of the upper end reinforcing member 21 in the longitudinal direction and the lower surface of the upper frame member 13. You can also use it as Alternatively, a recessed step portion for receiving the groove bottom piece portion 23 of the upper end reinforcing member 21 may be provided on the upper surface of the fitted portion 20b of the upper end horizontal beam member 20.

The inner vertical beam members 30, 30 and the vertical reinforcing members 31, 31 on both sides in the door width direction are provided symmetrically in the left and right direction (in the door width direction), and have the same structure. In addition, below, description will be made taking the inner vertical beam member 30 and the vertical reinforcing member 31 on one side in the door width direction as an example.
As shown in FIG. 1, the vertical reinforcing member 31 is elongated so as to extend in the door height direction. In this embodiment, this vertical reinforcing member 31 is provided over the entire area between the second horizontal beam member 17 and the lower frame member 14. The length dimension of the vertical reinforcing material 31 along the door height direction may be an appropriate length dimension from the viewpoint of suppressing vertical warping or reducing weight. The length of this vertical reinforcing member 31 may be, for example, approximately 3/5 to 9/10 of the door height of the door panel 10.

As shown in FIG. 2(c), in this embodiment, this vertical reinforcing member 31 is provided with a fitting groove 32 into which the fitted portion 30b of the inner vertical beam 30 is fitted, similar to the upper end reinforcing member 21. It is said to be composed of Further, this vertical reinforcing member 31 has a structure in which a groove bottom piece portion 33 that partitions the groove bottom side of the insertion groove 32 is held between an outer vertical bar member 29 and an inner vertical bar member 30. . That is, this vertical reinforcing member 31 is provided so that the insertion groove 32 opens toward the center in the door width direction. In addition, instead of such a mode, a configuration may be adopted in which the outer vertical beam member 29 is provided with a fitting portion that is fitted into the fitting groove 32 of the vertical reinforcing member 31. That is, the vertical reinforcing member 31 may be provided so that the insertion groove 32 opens outward in the door width direction. Further, for example, a mode may be adopted in which vertical reinforcing members 31 are provided on both sides of the vertical bar member (inner vertical bar member 30) in the door width direction.
Further, in this embodiment, the shape of the vertical reinforcing member 31 when viewed in the longitudinal direction is approximately the same size and the same shape as the shape of the upper end reinforcing member 21 when viewed in the longitudinal direction. In other words, this vertical reinforcing material 31 is formed into a substantially U-shape (U-shape) when viewed in the longitudinal direction by the side pieces 34, 34 that partition both sides of the insertion groove 32 in the groove width direction, and the groove bottom piece 33. There is. Further, like the upper end reinforcing member 21, this vertical reinforcing member 31 may be formed from an appropriate steel plate such as SPCC, or may be formed from a plated steel plate such as a galvanized steel plate (SECC) that has been subjected to an appropriate surface treatment. It may be something that has been done.

In addition, in the illustrated example, a plurality of openings are provided in the side pieces 34, 34 of the vertical reinforcing member 31 in the longitudinal direction to expose the fixing parts of the fasteners that join the inner vertical member 30 and the outer vertical member 29. The configuration is such that they are spaced apart from each other (see FIG. 1(b)). These openings are provided so as to penetrate the side pieces 34, 34 in the thickness direction. Note that such an opening may also be provided in the upper end reinforcing member 21. Moreover, instead of providing such an opening in the vertical reinforcing member 31, an insertion hole may be provided, or an adhesive or an adhesive may be used to connect the inner vertical member 30 and the outer vertical member 29 through the vertical reinforcing member 31. It is also possible to adopt a structure in which the two are joined together.

In this embodiment, the inner vertical beam member 30 is provided with recessed step portions 30c, 30c on both sides in the door thickness direction of the fitted portion 30b, similar to the upper end horizontal beam material 20, and has a door thickness greater than that of the fitted portion 30b. It has a base portion 30a whose dimension along the direction is large. In this embodiment, the shape of the inner vertical bar member 30 when viewed in the longitudinal direction is approximately the same size and the same shape as the shape of the upper end horizontal bar member 20 when viewed in the longitudinal direction.
Note that the vertical reinforcing member 31 and the inner vertical beam member 30 are not limited to those configured as described above. For example, a configuration may be adopted in which substantially the entire inner vertical beam member 30 is fitted into the fitting groove 32 of the vertical reinforcing member 31. Moreover, instead of the aspect in which the vertical reinforcing member 31 is provided so that the insertion groove 32 opens toward one side in the door width direction, it may be provided so that it opens toward the door thickness direction. In this case, the vertical reinforcing material 31 may be provided on one side or both sides in the door thickness direction of the vertical beam material (inner vertical beam material 30). Further, the vertical reinforcing material 31 is not limited to one having a substantially U-shape (U-shape) when viewed in the longitudinal direction, but may also be one having a substantially L-shape when viewed in the longitudinal direction, or even a strip plate. It may also be in the form of Further, the door panel 10 may have a configuration in which such a vertical reinforcing member 31 is not provided.

Further, the upper end reinforcing member 21 and the upper end horizontal member 20 are not limited to those having the above-described configuration. For example, as described above, substantially the entire upper end horizontal member 20 may be fitted into the fitting groove 22 of the upper end reinforcing member 21. Further, instead of or in addition to the aspect in which the upper end reinforcing material 21 is provided on the upper frame material 13 side (upper side) of the upper end horizontal beam member 20, it may be provided in a lower side. Furthermore, instead of providing the upper end reinforcing member 21 so that the fitting groove 22 opens toward one side in the door height direction, the upper end reinforcing material 21 may be provided so as to open toward the door thickness direction. In this case, the upper end reinforcing material 21 may be provided on one side or both sides of the upper end horizontal beam member 20 in the door thickness direction.
In addition, a mode in which a reinforcing material 21 and a horizontal bar 20 having substantially the same configuration as the upper end reinforcing material 21 and the upper end horizontal bar 20 are further provided at the center portion in the door height direction or the lower end of the door panel 10, etc. You can also use it as

In this embodiment, in addition to the upper end horizontal beam 20 and the upper end reinforcing material 21, a plurality of horizontal beams 16, 17, 18, 19, vertical beams 29, 30, and a mounting base 26 are provided within the four-periphery frame 12. , 27 is shown, however, a configuration may be adopted in which some or all of these are not provided. Further, in the above example, the core material 35 is housed in the hollow part of the panel core material 11, but a structure in which such a core material 35 is not provided may be adopted.
Further, in this embodiment, the door panel 10 is an example of a sliding door that is installed as a downward load type, but it may also be a sliding door that is installed as an upward hanging type. In this case, instead of providing the door wheel unit 38 at the lower end of the door panel 10, a suitable runner may be provided at the upper end of the door panel 10 to be suspended and supported by the upper rail and guided. Bye. Further, the door panel 10 is not limited to one that is installed as a sliding door, but may be one that constitutes a hinged door, a folding door, or a parent-child door. The above-described configurations of each member and each part of the door panel 10 according to the present embodiment are merely examples, and various other modifications are possible.

10 Door panel 10a Upper end 11 Panel core material 12 Four-periphery frame 13 Upper frame material 14 Lower frame material 15 Vertical frame material 20 Upper end horizontal beam material (horizontal beam material)
20a Base (other parts)
20b Fitted part 20c Recessed step part 21 Upper end reinforcing material (reinforcing material)
22 Fitting groove 23 Groove bottom piece 24 Side piece 36 Face material 36a Painted base surface 39 Door wheel 3 Upper frame 4a Guide groove L Length dimension (length dimension along the door width direction)
W Door width dimension

Claims (5)

A panel core material having a four-periphery frame including an upper frame material, a lower frame material, and vertical frame materials on both sides in the door width direction formed from a wood-based material, and face materials provided on both sides of the panel core material in the door thickness direction. and,
The panel core material is a metal member having a horizontal bar provided along the upper frame material on the lower side of the upper frame material, and a fitting groove into which the inserted portion of the horizontal bar material is fitted. It is equipped with reinforcements made of
The reinforcing material has a length along the door width direction that is 3/10 to 8/10 of the door width, and is provided so as to be located at the center side in the door width direction, and is provided so as to be located at the center side in the door width direction. A door panel characterized in that the length dimension is larger than the length dimension of the reinforcing material . In claim 1,
The reinforcing material is arranged such that the insertion groove opens downward, and a groove bottom piece portion defining a groove bottom side of the insertion groove is sandwiched between the upper frame material and the horizontal beam material. A door panel characterized in that it is held in place. In claim 1 or 2,
The horizontal beam material is formed from a laminated veneer material, and the insertion portion of the horizontal beam material has a recessed step portion that receives each side piece portion that partitions both sides in the groove width direction of the insertion groove of the reinforcing material. A door panel characterized in that the dimension of the fitting groove along the width direction of the groove is smaller than that of other parts. In any one of claims 1 to 3 ,
The door panel is characterized in that the surface material is a paintable base surface that can be painted. In any one of claims 1 to 4 ,
A door panel characterized in that a door roller is provided at a lower end portion and the upper end portion is configured to be inserted into a guide groove of an upper frame.

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