Fixture

Abstract

To provide a fixture capable of preventing plastic deformation of a door body while improving its design.SOLUTION: An entrance door 1, being a fixture, comprises: a door frame 2 and a door 3. The door 3 comprises: a frame material having at least a lower frame 70; and an exterior surface material 51 and an interior surface material 52 attached to the frame material. The exterior surface material 51 comprises a groove 515 formed by bending, extending continuously in a vertical direction, and recessed from the surface. The lower frame 70 consists of a synthetic resin material comprising an exterior retaining piece positioned along a back surface of the exterior surface material 51, an interior retaining piece 73 positioned along a back surface of the interior surface material 52, and a connecting piece 71 connecting the exterior retaining piece and the interior retaining piece 73. A notched groove, in which the groove 515 is positioned, is formed in the exterior retaining piece, and a metal reinforcing material 100 is provided along the lower frame 70.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to fittings used in the entrance, back door, etc. of a building. [Background technology]

[0002] Conventionally, in a door having a frame and a door body that is attached to the frame so as to be able to open and close, there has been known a door in which the door body is made up of a metal exterior surface material and an interior surface material, and resin end members provided at the hanging end, door tip end, upper end, and lower end, and in which a panel-shaped insulating core material is placed between each surface material to improve insulation (see, for example, Patent Document 1). In such doors, the exterior surface material attached to the exterior surface of the door body is made of a flat steel plate, and when the door body opens due to strong winds or the like and hits the doorstop, it curves appropriately to absorb the impact force, preventing damage to the end member at the lower end. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-120017 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to improve the design, the inventors have newly prototyped a door body (door main body) in which multiple continuous grooves in the vertical direction are formed in the exterior surface material by press processing or the like, and notched grooves to accommodate these grooves are formed in the upper and lower ribs. When an impact opening test was conducted simulating a situation in which such a door body collides with a door stop, a new problem was discovered in which the lower ribs deformed, causing plastic deformation of the door body.

[0005] The object of the present invention is to provide a fitting that can prevent deformation of the ribs and improve the design. [Means for solving the problem]

[0006] The fitting of the present invention is a fitting comprising a fitting frame and a door that is attached to the fitting frame so as to be able to open and close, the door comprising a frame material having at least a bottom rib, and an outdoor surface material and an indoor surface material attached to the frame material, the outdoor surface material having a groove that is continuous in the vertical direction and recessed from the surface, the bottom rib being made of a synthetic resin material that comprises an outdoor holding piece arranged along the back surface of the outdoor surface material, an indoor holding piece arranged along the back surface of the indoor surface material, and a connecting piece that connects the outdoor holding piece and the indoor holding piece, the outdoor holding piece having a notched groove in which the groove is to be placed, and a metal reinforcing material being provided along the bottom rib. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a fitting that can prevent deformation of the ribs and also improve design. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external view of a door according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a longitudinal cross-sectional view taken along line AA in FIG. [Figure 3] FIG. 2 is a longitudinal cross-sectional view taken along line BB in FIG. [Figure 4] FIG. 2 is a cross-sectional view of the door of the first embodiment. [Figure 5] FIG. 2 is a perspective view showing a door frame and a reinforcing member of the door of the first embodiment. [Figure 6] FIG. 2 is a cross-sectional view showing the lower frame and reinforcing material of the door of the first embodiment. [Figure 7] FIG. 10 is a cross-sectional view showing the lower frame and reinforcing material of the door of the second embodiment. [Figure 8] FIG. 10 is a cross-sectional view showing the bottom frame and reinforcing material of the door of the third embodiment. [Figure 9] FIG. 10 is a cross-sectional view showing the lower frame and reinforcing material of the door of the fourth embodiment. [Figure 10]FIG. 10 is a perspective view showing a lower frame and a reinforcing member of a modified door. [Figure 11] FIG. 10 is a perspective view showing the lower frame and reinforcing member of another modified door. DETAILED DESCRIPTION OF THE INVENTION

[0009] [First embodiment] A first embodiment of the present invention will be described below with reference to the drawings. As shown in Figures 1 to 4, the entrance door 1, which is a fixture of the present invention, is a so-called single-leaf door, and is composed of a door frame 2, which is a fixture frame fixed to an opening in the exterior wall of a building, and a door 3, which is a door body supported by the door frame 2 so that it can be opened and closed. In the following description, when viewing the entrance door 1 shown in Fig. 1 from the front, the left-right direction is the X-axis direction, the up-down direction is the Y-axis direction, and the indoor-outdoor direction (view direction) is the Z-axis direction. Fig. 2 is a vertical cross-sectional view taken along line AA in Fig. 1, and Fig. 3 is a vertical cross-sectional view taken along line BB in Fig. 1.

[0010] The door frame 2 has an upper frame 10, a lower frame 20, and left and right vertical frames 30, 40. The vertical frame 30 located on the right side of Fig. 1 is the hanging side and has a hinge 4 attached to it, while the vertical frame 40 located on the left side of Fig. 1 is the door edge side. The hinge 4 is a general hinge such as a flag hinge, and is a part used to connect to the door frame 2, which is a fitting frame. An operating handle 6 is provided on the door edge side of the door 3. The door frame 2 may be of a type that does not have a lower frame 20.

[0011] As shown in Figure 2, the upper frame 10 is an insulated profile constructed by connecting an aluminum exterior member 11 and an interior member 12 with an insulating material 13 such as urethane resin, and the exterior member 11 and the interior member 12 are fixed to a main body not shown. 2 to 4, hatching is used only for the heat insulating material 13 of the door frame 2, the hard resin portions of the weatherstripping materials 15, 25, 35, and 45, and the door slide 24, and hatching is omitted for other components to make the drawings easier to see. In addition, hatching is omitted for the door 3 other than the heat insulating core material 53. The exterior member 11 and the interior member 12 are extruded shapes made of aluminum (metal). A seal material 15 is attached to the interior member 12. The seal material 15 is made of a common synthetic resin material such as EPDM (ethylene propylene rubber) or PVC (polyvinyl chloride), and comes into contact with the interior surface of the door 3 when the door 3 is closed.

[0012] The lower frame 20 is made of extruded aluminum and holds a weatherstripping material 25. The lower frame 20 is fitted with mortar, for example, so there is little heat transfer. For this reason, the lower frame 20 is not made of an insulated aluminum profile like the upper frame 10, but is made of an extruded aluminum profile formed as a single unit from the outside to the inside of the room. The door frame 25 is the same part as the door frame 15, and is attached to the lower frame 20 to abut against the interior surface of the door 3 when the door 3 is closed. The surface of the lower frame 20 exposed to the interior is covered with a rubber door slide 24 and the door frame 25.

[0013] As shown in Figure 4, the vertical frame 30 on the hanging side and the vertical frame 40 on the door tip side are made of aluminum insulated extruded profile exterior members 31, 41 and interior members 32, 42 connected by insulating material 33, 43 such as urethane resin. Furthermore, like the upper frame 10, the exterior members 31, 41 and interior members 32, 42 are fixed to the frame (not shown). Tightening materials 35, 45 are attached to the interior members 32, 42. The tightening materials 35, 45 are made of the same synthetic resin material as the tightening materials 15, 25, and come into contact with the interior surface of the door 3 when the door 3 is closed.

[0014] As shown in Figures 2 to 4, the door 3 includes a frame material, an outdoor surface material 51 fixed to the outdoor side of the frame material, an indoor surface material 52 fixed to the indoor side of the frame material, and a heat insulating core material 53 provided between the outdoor surface material 51 and the indoor surface material 52. The frame material comprises an upper rib 60, a lower rib 70, and vertical ribs 80, 90 on the hanging side and door edge side.

[0015] The upper rib 60 is a resin frame and includes a connecting piece 61, an exterior holding piece 62, an interior holding piece 63, and a pair of protruding pieces 64, 65. The connecting piece 61 is formed in a flat plate shape along the projection direction of the door 3, i.e., the Z-axis direction, and connects the outdoor holding piece 62 and the indoor holding piece 63. The outdoor holding piece 62 extends downward from the outdoor-side edge of the connecting piece 61 and is arranged along the back surface of the outdoor surface material 51. The indoor holding piece 63 extends downward from the indoor-side edge of the connecting piece 61 and is arranged along the back surface of the indoor surface material 52. For this reason, the connecting piece 61, outdoor holding piece 62, and indoor holding piece 63 are formed with a generally U-shaped cross section. A pair of protrusions 64, 65 protrude downward from the underside of connecting piece 61 between outdoor holding piece 62 and indoor holding piece 63. Protrusion 64 is formed on the outdoor side of protrusion 65, i.e., between outdoor holding piece 62 and protrusion 65. Protrusion 65 is formed on the indoor side of protrusion 64, i.e., between indoor holding piece 63 and protrusion 64. Protrusions 64, 65 are curved so that their tips approach each other. A plate 66 for mounting the door closer is arranged between the protrusions 64 and 65 and is fixed to the connecting piece 61 of the upper frame 60 with a rivet 67.

[0016] The lower rib 70 is a resin frame having the same cross section as the upper rib 60, and is equipped with a connecting piece 71, an exterior retaining piece 72, an interior retaining piece 73, and a pair of protruding pieces 74, 75. The connecting piece 71 is formed in a flat plate shape along the projection direction of the door 3, i.e., the Z-axis direction, and connects the exterior holding piece 72 and the interior holding piece 73. The exterior holding piece 72 extends upward from the exterior edge of the connecting piece 71 and is arranged along the back surface of the exterior surface material 51. The interior holding piece 73 extends upward from the interior edge of the connecting piece 71 and is arranged along the back surface of the interior surface material 52. For this reason, the connecting piece 71, the exterior holding piece 72, and the interior holding piece 73 are formed with a generally U-shaped cross section. A pair of protrusions 74, 75 protrude upward from the underside of connecting piece 71 between outdoor holding piece 72 and indoor holding piece 73. Protrusion 74 is formed on the outdoor side of protrusion 75, i.e., between outdoor holding piece 72 and protrusion 75. Protrusion 75 is formed on the indoor side of protrusion 74, i.e., between indoor holding piece 73 and protrusion 74. Protrusions 74, 75 are curved so that their tips approach each other.

[0017] As shown in FIG. 5 , the connecting piece 71 and the exterior holding piece 72 of the lower rib 70 have a plurality of notched grooves 76 formed at intervals in the longitudinal direction (X-axis direction) of the lower rib 70. Each notched groove 76 is formed over the entire vertical length of the exterior holding piece 72 and is further formed continuously in the connecting piece 71 up to the position of the exterior surface of the protruding piece 74. As will be described later, groove portions 515 of the exterior surface material 51 are positioned in the notched grooves 76. Therefore, the notched grooves 76 are formed according to the formation positions and number of groove portions 515. In this embodiment, six groove portions 515 are provided in the exterior surface material 51, and therefore six notched grooves 76 are formed. Therefore, the exterior holding piece 72 is divided into seven sections by the notched grooves 76. Although not shown, the connecting piece 61 and the exterior retaining piece 62 of the upper rib 60 also have notched grooves similar to those of the lower rib 70.

[0018] A metal reinforcing member 100 is attached to the lower rib 70. As shown in FIG. 6, the reinforcing member 100 is formed with a roughly U-shaped cross section and includes a projection piece 101, an exterior piece 102, and an interior piece 103. The projection piece 101 is a flat plate-like portion extending horizontally, with the exterior piece 102 extending downward from the exterior edge of the projection piece 101 and the interior piece 103 extending downward from the interior edge of the projection piece 101. The interior piece 103 is positioned in contact with the exterior surface of the interior retaining piece 73, and its lower end is positioned in contact with the connecting piece 71. The interior retaining piece 73 and the interior piece 103 are connected and fixed by a rivet 105, which is a fastener. In this embodiment, the rivet 105 that secures the indoor retaining piece 73 and the indoor piece portion 103 is provided in one location, but the rivet 105 may also be provided in multiple locations along the longitudinal direction (X-axis direction) of the lower frame 70. The lower end of the outdoor piece 102 is positioned in contact with the upper end of the protrusion 74. For this reason, the height of the outdoor piece 102 is set to be shorter than the height of the indoor piece 103 by the height of the protrusion 74. Furthermore, the outdoor surface of the outdoor piece 102 is set to be substantially flush with the outdoor surface of the protrusion 74, that is, at substantially the same position in the prospective direction. As shown in Fig. 5, the longitudinal dimension (X-axis direction) of the reinforcing material 100 is approximately the same as the longitudinal dimension of the lower rib 70, and the reinforcing material 100 is arranged over the entire length of the lower rib 70. Therefore, the reinforcing material 100 is arranged in the longitudinal direction of the lower rib 70, including at least the position where the notch groove 76 is formed, and more specifically, including the range where the multiple notch grooves 76 are formed. In other words, one longitudinal end of the reinforcing material 100 is arranged closer to the vertical rib 80 than the notch groove 76 formed closest to the vertical rib 80 among the multiple notch grooves 76. Furthermore, the other longitudinal end of the reinforcing material 100 is arranged closer to the vertical rib 90 than the notch groove 76 formed closest to the vertical rib 90 among the multiple notch grooves 76.

[0019] As shown in Figure 4, the vertical frame 80 on the hanging side is made up of a resin frame 81 and a metal frame 82. The resin frame 81 is formed in a roughly U-shaped cross section, with a projection piece along the projection direction (Z-axis direction) of the door 3, and an exterior projection piece and an interior projection piece extending from the exterior end and interior end of the projection piece in the projection direction (X-axis direction) of the vertical frame 80, respectively. Like the resin aggregate 81, the metal aggregate 82 is a metal plate having an approximately C-shaped cross section and including a visible piece, an exterior visible piece, and an interior visible piece, and is arranged along the inner surface of the resin aggregate 81. The hinge 4 is fixed with a screw to this vertical frame 80. Specifically, a metal fixing plate 83 is fixed to the inner peripheral surface of the metal frame 82 in accordance with the height position of the hinge 4, and the screw that fixes the hinge 4 penetrates the resin frame 81 and the metal frame 82 and is screwed into the fixing plate 83.

[0020] The vertical frame 90 on the door end side is composed of resin aggregates 91A and 91B and a metal aggregate 92. The metal aggregate 92 is a metal plate formed with a roughly U-shaped cross section, like the metal aggregate 82. The resin aggregate 91A has an engaging groove into which the exterior facing piece of the metal aggregate 92 engages, and is configured to be able to cover the exterior surface of the exterior facing piece of the metal aggregate 92. The resin aggregate 91B is formed with the same cross section as the resin aggregate 91A, and is configured to be able to cover the exterior surface of the interior facing piece of the metal aggregate 92. On the projecting surface of the vertical frame 90 facing the vertical frame 40, a metal edge material 95 is screwed to the metal frame 92.

[0021] The exterior surface material 51 and the interior surface material 52 are made of steel plates. The outdoor surface material 51 includes a surface portion 511 and visible surface portions 512 that are bent from the top, bottom, left and right edges of the surface portion 511 toward the indoor side (Z-axis direction). The surface portion 511 has flat portions 514 and groove portions 515. The groove portions 515 are formed continuously in the vertical direction, and in this embodiment, six groove portions 515 are provided at predetermined intervals in the X-axis direction. The flat portions 514 are provided between the groove portions 515 and between the groove portions 515 and the left and right edges of the surface portion 511. Each groove 515 is formed to appear as a recessed groove when the outdoor surface material 51 is viewed from the outside of the room. That is, the groove 515 is configured to include a pair of inclined surface portions 516 bent from the surface portion 511 toward the indoor side, and a bottom surface portion 517 connecting the pair of inclined surface portions 516. For this reason, the groove 515 is formed by subjecting the outdoor surface material 51 to a bending process such as pressing. The exterior piece portion 102 of the reinforcing material 100 and the protruding piece 74 of the lower rib 70 are positioned in contact with or close to the bottom surface portion 517 of the groove portion 515. Of the visible surface portions 512, the upper and lower visible surface portions 512 are cut out on the extension lines of the groove portions 515, and only the portions that continue to the flat surface portions 514 are provided.

[0022] The indoor-side surface material 52 includes a surface portion 521 and visible surface portions 522 that are bent from the top, bottom, left, and right edges of the surface portion 521 toward the outdoor side (Z-axis direction).

[0023] The insulating core material 53 is made of an insulating material made of EPS (expanded polystyrene). Note that the insulating core material 53 may be made of a phenolic resin insulating material, or may be made of an insulating material such as a honeycomb material (aluminum hydroxide honeycomb, ceramic honeycomb, paper honeycomb), a foam material (isocyanurate foam, urethane foam, phenolic resin foam), or the like. 4, recessed grooves 535 in which grooves 515 are arranged are provided on the outdoor surface of the heat insulating core 53. In this embodiment, the grooves 515 are continuous in the vertical direction and are provided at six locations in the left-right direction (X-axis direction) at predetermined intervals, so the recessed grooves 535 are also continuous in the vertical direction and are formed at six locations in the left-right direction.

[0024] The exterior surface material 51 and the interior surface material 52 are bonded with an adhesive to the exterior and interior surfaces of the insulating core material 53, and the visible surfaces 512, 522 are fixed with adhesive, rivets, etc. to the upper ribs 60, lower ribs 70, and vertical ribs 80, 90. Therefore, the door 3 is a flush door finished by attaching the exterior surface material 51 and the interior surface material 52, which are steel plates, to the frame material. The bottom surface 517 of the groove 515 of the outdoor surface material 51 is adhered to the recessed groove 535, the outdoor piece 102, and the protruding pieces 64, 74 with an adhesive. Furthermore, as shown in Figures 2 and 3, metal cover materials 55 and 56 are fixed to the upper side of the upper visible surface portion 512 of the outdoor surface material 51 and the lower side of the lower visible surface portion 512 with adhesive or rivets 57.

[0025] [Effects of the first embodiment] According to the first embodiment having such a configuration, the following effects are obtained. The grooves 515 are formed by bending the exterior surface material 51 of the door 3 and are continuous in the vertical direction, which improves the design of the door 3 and also improves the surface rigidity of the exterior surface material 51. This also improves the rigidity of the entire door 3 including the exterior surface material 51. Furthermore, since the metal reinforcing members 100 are provided along the bottom ribs 70, the strength of the bottom end of the door 3 can be improved, and the bottom ribs 70 can be prevented from being plastically deformed and broken when the bottom end of the door 3 collides with a door stop or the like. In particular, when the groove portion 515 is provided in the exterior surface material 51, the exterior holding piece 72 needs to form the notch groove 76, which reduces the strength of the bottom ribs 70. For this reason, when the door 3 collides with the door stop, the bottom ribs 70 are more likely to be deformed and broken, but in this embodiment, the reinforcing members 100 are provided, so deformation of the bottom ribs 70 can be prevented.

[0026] The reinforcing material 100 is arranged in the longitudinal direction of the lower rib 70, including the range where the multiple notch grooves 76 are formed, and therefore can effectively reinforce the portions of the notch grooves 76 where the strength of the lower rib 70 is reduced. Furthermore, because it is sufficient to arrange a single reinforcing material 100 that is continuous in the longitudinal direction, assembly workability can be improved and the reinforcing strength of the lower rib 70 can also be further improved.

[0027] The grooves 515 are disposed in the notched grooves 76 of the upper ribs 60 and lower ribs 70, so that the grooves 515 can be easily positioned and arranged. Furthermore, the exterior piece 102 of the reinforcing member 100 is disposed in contact with or adjacent to the grooves 515, so that when an impact is applied, such as when the bottom end of the door 3 abuts against a door stop, the impact force can be transmitted from the grooves 515 of the exterior surface member 51 to the reinforcing member 100 and supported, thereby improving the strength of the door 3. Furthermore, the bottom surface 517 of the grooves 515 is bonded to the reinforcing member 100, so that the strength of the door 3 can be further improved. The lower rib 70 is provided with a protrusion 74 which is in contact with or close to the groove 515, so that impact forces acting on the door 3 can be transmitted from the groove 515 of the exterior surface material 51 to the reinforcing member 100 via the protrusion 74, thereby improving the strength of the door 3. Furthermore, the bottom surface 517 of the groove 515 is bonded to the protrusion 74, further improving the strength of the door 3.

[0028] Door 3 has upper ribs 60 and lower ribs 70 made of synthetic resin to which metal outdoor surface material 51 and indoor surface material 52 are fixed, and further, outdoor surface material 51 and indoor surface material 52 are attached to resin aggregate 81 of vertical ribs 80 and resin aggregates 91A, 91B of vertical ribs 90, so that heat conduction between outdoor surface material 51 and indoor surface material 52 can be reduced and the heat insulating performance of door 3 can be improved.

[0029] [Second embodiment] 7, the second embodiment differs from the first embodiment in that a reinforcing member 110 is provided instead of the reinforcing member 100. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The reinforcing member 110 of the second embodiment is composed of a projection piece 111 arranged along the projection direction, an exterior piece 112 extending downward from the exterior end of the projection piece 111, and an interior piece 113 extending downward from the interior end of the projection piece 111. The interior piece 113 is arranged on the exterior side of the interior holding piece 73, just like the interior piece 103, and is fixed with a rivet 105. Furthermore, the projected dimension of the projected piece portion 111 is shorter than the projected piece portion 101 of the reinforcing material 100. For this reason, the outdoor piece portion 112 is disposed on the indoor side of the protruding piece 74, with its lower end abutting the upper surface of the connecting piece 71. For this reason, the outdoor piece portion 112 and the indoor piece portion 113 have the same height dimension, that is, the extension dimension from the projected piece portion 111 (dimension in the Y-axis direction).

[0030] [Effects of the second embodiment] In the second embodiment, the reinforcing material 110 is also arranged along the rib 70, so that the same effects as in the first embodiment can be achieved. Since the exterior piece 112 and the interior piece 113 of the reinforcing material 110 have the same extension dimension, a general channel material can be used for the reinforcing material 110, and costs can also be reduced. The reinforcing material 110 can be positioned in the prospective direction (Z-axis direction) by placing the outdoor piece portion 112 and the indoor piece portion 113 between the protruding piece 74 and the indoor retaining piece 73, so that the installation work of placing the reinforcing material 110 in the lower frame 70 and fixing it with rivets 105 can be easily performed.

[0031] [Third embodiment] 8, the third embodiment differs from the first embodiment in that a reinforcing member 120 is provided instead of the reinforcing member 100. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The reinforcing material 120 of the third embodiment is composed of a projection piece portion 121 arranged along the projection direction, an exterior piece portion 122 extending downward from the exterior end of the projection piece portion 121, and an interior piece portion 123 extending downward from the interior end of the projection piece portion 121. The projection dimension of the projection piece 121 is made even shorter than the projection piece 111 of the reinforcing material 110 of the second embodiment. For this reason, the outdoor piece 122 is arranged on the indoor side of the protruding piece 74, and the indoor piece 123 is arranged on the outdoor side of the protruding piece 75. The outdoor piece 122 and the indoor piece 123 have the same height dimension, that is, the extension dimension from the projection piece 121 (dimension in the Y-axis direction).

[0032] The lower ends of the exterior piece 122 and the interior piece 123 are bent outward and then inward to form bent portions 124, 125. The bent portions 124, 125 engage with the protrusions 74, 75. That is, the upper ends of the pair of protrusions 74, 75 are bent toward each other. Meanwhile, the bent portions 124, 125 are also bent outward. Therefore, when the exterior piece 122 and the interior piece 123 of the reinforcement 120 are pushed between the protrusions 74, 75, the exterior piece 122 and the interior piece 123 bend toward each other, that is, bend inward. Then, when the bent portions 124, 125 overcome the curved portions of the protrusions 74, 75, the exterior piece 122 and the interior piece 123 return to their original state, and the bent portions 124, 125 engage with the protrusions 74, 75 by snap-fitting.

[0033] [Effects of the third embodiment] In the third embodiment, the reinforcing material 120 is also arranged along the rib 70, and therefore the same effects as in the first embodiment can be achieved. The reinforcing member 120 is attached to the lower frame 70 by engaging the bent portions 124, 125 with the protruding pieces 74, 75, so there is no need to fix it with a rivet 105, and the reinforcing member 120 can be attached to the lower frame 70 with a simple operation.

[0034] [Fourth embodiment] 9, the fourth embodiment differs from the first embodiment in that a reinforcing member 130 is provided instead of the reinforcing member 100. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. The reinforcing material 130 of the fourth embodiment is composed of a projection piece portion 131 arranged along the projection direction, an indoor piece portion 133 arranged along the indoor side retaining piece 73, and a connecting piece portion 134 connecting the projection piece portion 131 and the indoor piece portion 133. The projection piece 131 is arranged along the upper surface of the connecting piece 71 and is formed in a flat plate shape, and its outdoor end extends to a position where it abuts or is close to the protrusion 74. The indoor piece 133 is arranged along the outdoor surface of the indoor retaining piece 73 and is fixed to the indoor retaining piece 73 with a rivet 105. The connecting piece portion 134 is a portion that connects the indoor side end portion of the projection piece portion 131 and the lower end portion of the indoor piece portion 133, and is configured so as not to interfere with the protruding piece 75. In other words, the connecting piece portion 134 has an inclined surface portion that extends diagonally upward from the indoor side end portion of the projection piece portion 131 toward above the protruding piece 75, and a horizontal surface portion that extends from the upper end of the inclined surface portion toward the lower end portion of the indoor piece portion 133.

[0035] [Effects of the fourth embodiment] In the fourth embodiment, the reinforcing material 130 is also arranged along the rib 70, so that the same effects as in the first embodiment can be achieved. The reinforcing material 130 is formed with a generally L-shaped cross section and includes a projection piece portion 131, an indoor piece portion 133, and a connecting piece portion 134, and does not include an outdoor piece portion, so that the amount of metal material used can be reduced, leading to cost savings. Since the projection piece portion 131 is arranged along the connecting piece 71, the strength of the connecting piece 71 portion in particular can be reinforced, and the strength of the lower rib 70 can be reinforced effectively.

[0036] [Variations] The present invention is not limited to the configurations described in the above embodiments, and any modifications that can achieve the object of the present invention are included in the present invention. The reinforcing material for reinforcing the lower frame 70 is not limited to those described in the above embodiments. For example, a reinforcing material 100B shown in Fig. 10 may be provided with fixing pieces 106 at both ends in the longitudinal direction (X-axis direction) that are fixed to the vertical frames 80, 90 with screws or the like. By fixing the reinforcing material 100B to the vertical frames 80, 90 as well, the fixing strength of the reinforcing material 100B can be improved, and the rigidity of the door 3 can also be improved. 11, a reinforcing material whose longitudinal dimension is shorter than the lower rib 70 may also be used. This reinforcing material 100C is arranged in the longitudinal direction of the lower rib 70, including the positions where the multiple notch grooves 76 are formed. That is, one longitudinal end of the reinforcing material 100C is arranged between the vertical rib 80 and the notch groove 76 formed closest to the vertical rib 80 out of the multiple notch grooves 76, and the other longitudinal end of the reinforcing material 100C is arranged between the vertical rib 90 and the notch groove 76 formed closest to the vertical rib 90.

[0037] Furthermore, multiple reinforcing members may be arranged along the longitudinal direction of the lower rib 70. That is, two reinforcing members each having a dimension in the X-axis direction that is approximately half that of the lower rib 70 may be arranged along the longitudinal direction of the lower rib 70. Furthermore, three or more reinforcing members may be arranged along the longitudinal direction of the lower rib 70. Furthermore, the reinforcing material is not necessarily limited to being placed at a position including the position where the notch groove 76 is formed. For example, if a plurality of notch grooves 76 are formed, it is not necessary to place reinforcing material in the portions of some of the notch grooves 76, and it is sufficient for the reinforcing material to be capable of reinforcing the lower bone 70 as a whole so as to prevent deformation. Furthermore, the cross-sectional shapes of the lower ribs and reinforcing material are not limited to those of the above-described embodiments. For example, the lower ribs may have a U-shaped cross section without any protruding pieces, similar to the resin aggregate 81. In this case, the reinforcing material may also have a U-shaped cross section and be located inside the lower ribs, similar to the metal aggregate 82. In this case, a notched groove may also be formed in the exterior piece of the reinforcing material, and a cut-and-raised piece that abuts or is close to the bottom surface 517 of the groove 515 may be formed in the reinforcing material.

[0038] The fasteners for fixing the reinforcing material to the ribs 70 are not limited to the rivets 105, but may be screws, bolts, nuts, etc. Furthermore, the number of fasteners such as the rivets 105 may be one or more. Furthermore, the reinforcing material is not limited to being fixed to the bottom ribs 70 with fasteners such as rivets 105, but may be fixed to the bottom ribs 70 with a snap fit, as in the case of the reinforcing material 130 of the third embodiment, or may be fixed to the bottom ribs 70 with an adhesive. Furthermore, the reinforcing material is not limited to being fixed to or engaged with the bottom ribs 70, but may be arranged along the bottom ribs 70 without being fixed or engaged. In other words, it is sufficient for the reinforcing material to be able to withstand forces applied to the bottom ribs 70 by abutting against the exterior surface material 51 or the bottom ribs 70 in the projection direction, thereby preventing plastic deformation of the bottom ribs 70.

[0039] The configuration of the grooves 515 formed in the exterior surface material 51 of the door 3 is not limited to the above embodiment. That is, the number of grooves, width, depth, and cross-sectional shape of the grooves may be appropriately determined taking into account the design and rigidity of the door 3. Furthermore, the grooves 515 are not limited to being bonded to the insulating core material 53, the reinforcing material 100, and the protruding piece 74, but may be bonded to a part of the insulating core material 53, the reinforcing material 100, or the protruding piece 74, or the grooves 515 may not be bonded at all. The door is not limited to having an upper rib, a lower rib, and left and right vertical ribs, and may, for example, have no upper rib, and may instead have a configuration in which the visible surface portion 512 on the upper surface of the exterior surface material 51 and the visible surface portion 522 on the upper surface of the interior surface material 52 are connected with a heat insulating material in between. Furthermore, the vertical ribs on the hanging side and door edge side are not limited to being made of resin rib and metal rib, and may, for example, be made of metal rib only. Although the fixture of the present invention is an entrance door without a lighting section, it may also be an entrance door that uses a door with a lighting section. Furthermore, the fixture of the present invention is not limited to entrance doors, but can be used as various entrance doors, such as back doors. In this case, the present invention can also be applied to fixtures with two doors, a main door and a secondary door, and can also be applied to sliding door fixtures. Furthermore, the configuration of the door frame that is the fixture frame is not particularly limited, and it may be a door frame made of an aluminum outdoor component and a resin indoor component, or an aluminum door frame.

[0040] [Summary of the invention] The fitting of the present invention is a fitting comprising a fitting frame and a door that is attached to the fitting frame so as to be able to open and close, the door comprising a frame material having at least a bottom rib, and an outdoor surface material and an indoor surface material attached to the frame material, the outdoor surface material having a groove that is continuous in the vertical direction and recessed from the surface, the bottom rib being made of a synthetic resin material that comprises an outdoor holding piece arranged along the back surface of the outdoor surface material, an indoor holding piece arranged along the back surface of the indoor surface material, and a connecting piece that connects the outdoor holding piece and the indoor holding piece, the outdoor holding piece having a notched groove in which the groove is to be placed, and a metal reinforcing material being provided along the bottom rib. According to the present invention, the exterior surface material of the door is provided with a groove that continues in the vertical direction, which improves the design of the door and also improves the surface rigidity of the exterior surface material and the rigidity of the entire door. In addition, since a metal reinforcing member is provided along the bottom frame, the bottom frame, whose strength has been reduced by forming a notched groove in the exterior holding piece, can be reinforced with the reinforcing member, preventing the bottom frame from deforming and breaking when the lower end of the door hits a door stop or the like.

[0041] In the building fixture of the present invention, it is preferable that the reinforcing material is arranged in the longitudinal direction of the soffit, including at least the position where the notch groove is formed. According to the present invention, the reinforcing material is arranged in the longitudinal direction of the lower bone, including the position where the notch groove is formed, so that the notch groove portion of the lower bone where strength is reduced can be effectively reinforced.

[0042] In the building fixture of the present invention, it is preferable that the notch grooves are formed at intervals along the longitudinal direction of the base frame, and that the reinforcing material is arranged in the longitudinal direction of the base frame, including the range in which the multiple notch grooves are formed. According to the present invention, when the outer support piece has a plurality of notched grooves formed at intervals along the length of the base frame, the reinforcing material is arranged along the length of the base frame, including the area where the plurality of notched grooves are formed, thereby effectively reinforcing each notched groove portion where the strength of the base frame is reduced. Furthermore, since only one reinforcing material is arranged continuously along the length, assembly workability is improved compared to when reinforcing materials are individually arranged in each notched groove portion, and the reinforcing strength of the base frame is also further improved.

[0043] In the fitting of the present invention, it is preferable that the reinforcing material is provided in contact with or adjacent to the groove portion. According to the present invention, since the reinforcing material is provided in contact with or adjacent to the groove, when an impact is applied, such as when the bottom edge of the door hits a door stop, the impact force can be transmitted from the groove in the exterior surface material to the reinforcing material, thereby improving the strength of the door. Furthermore, the bottom of the groove can be bonded to the reinforcing material, further improving the strength of the door.

[0044] In the building fixture of the present invention, it is preferable that the reinforcing material comprises at least an indoor piece portion fixed to the indoor retaining piece, and a projection piece portion extending from the indoor piece portion to the outdoor side. According to the present invention, the reinforcing material is formed with at least an L-shaped cross section and has an interior piece portion and a projection piece portion, so that the cross-sectional performance can be improved compared to flat reinforcing materials and deformation such as twisting of the lower ribs can be suppressed.

[0045] In the fitting of the present invention, it is preferable that the lower rib has a protruding piece that protrudes upward from the connecting piece and abuts or is close to the groove portion. According to this invention, a protrusion is provided on the bottom rib and this protrusion is in contact with or close to the groove. When an impact is applied, such as when the bottom edge of the door hits the door stop, the impact force is transmitted from the groove in the exterior surface material through the bottom rib to the reinforcing material, thereby improving the strength of the door. Furthermore, the bottom of the groove can be glued to the protrusion, further improving the strength of the door.

[0046] In the building fixture of the present invention, it is preferable that the reinforcing material is fixed to the lower rib by a fastener. According to the present invention, the reinforcing material is fixed to the lower frame by fasteners such as screws or rivets, so that the metal reinforcing material can be easily fixed to the lower frame made of synthetic resin.

[0047] In the building fixture of the present invention, the frame material may have left and right vertical bones, and both longitudinal ends of the reinforcing material may be fixed to the vertical bones. According to the present invention, both ends of the reinforcing material are fixed to the vertical ribs, so that the fixing strength of the reinforcing material can be improved, and the strength of the door can be further improved. [Explanation of symbols]

[0048] 1... entrance door, 2... door frame, 3... door, 51... exterior surface material, 52... interior surface material, 53... insulating core material, 60... upper frame, 70... lower frame, 71... connecting piece, 72... exterior retaining piece, 73... interior retaining piece, 74... protruding piece, 75... protruding piece, 76... notched groove, 80... vertical frame, 90... vertical frame, 100... reinforcing material, 100B... reinforcing material, 100C... reinforcing material, 101... projection piece, 102... exterior piece, 103... interior piece, 105... rivet, 106... fixing piece, 110... support Strengthening material, 111...projected piece portion, 112...exterior piece portion, 113...indoor piece portion, 120...reinforcing material, 121...projected piece portion, 122...exterior piece portion, 123...indoor piece portion, 124...bent portion, 125...bent portion, 130...reinforcing material, 131...projected piece portion, 133...indoor piece portion, 134...connecting piece portion, 511...surface portion, 512...projected surface portion, 514...flat portion, 515...groove portion, 516...inclined surface portion, 517...bottom surface portion, 521...surface portion, 522...projected surface portion, 535...concave groove portion.

Claims

1. A fixture comprising a fixture frame and a door that is provided so as to be openable and closable relative to the fixture frame, The door is a frame material having at least a rib; an exterior surface material and an interior surface material attached to the frame material, The outdoor surface material has a groove formed thereon that is continuous in the vertical direction and recessed from the surface, The lower frame is made of a synthetic resin material and includes an exterior holding piece arranged along the back surface of the exterior surface material, an interior holding piece arranged along the back surface of the interior surface material, and a connecting piece that connects the exterior holding piece and the interior holding piece; The outdoor holding piece has a notched groove in which the groove portion is arranged, A metal reinforcement is provided along the lower bone. A fixture characterized by:

2. In the fitting according to claim 1, The reinforcing member is disposed in the longitudinal direction of the stump, at least including the position where the notch groove is formed. A fixture characterized by:

3. In the fitting according to claim 1, The notch grooves are formed at intervals in the longitudinal direction of the humerus, The reinforcing material is disposed in the longitudinal direction of the lower bone, including the range in which the plurality of notched grooves are formed. A fixture characterized by:

4. In the fitting according to claim 1, The reinforcing material is provided in contact with or adjacent to the groove. A fixture characterized by:

5. In the fitting according to claim 1, The reinforcing material includes at least an indoor piece portion fixed to the indoor-side holding piece and a projection piece portion extending from the indoor piece portion to the outdoor side. A fixture characterized by:

6. In the fitting according to claim 1, The lower bone has a protruding piece that protrudes upward from the connecting piece and abuts or is close to the groove. A fixture characterized by:

7. In the fitting according to claim 1, The reinforcement is secured to the lower bone by fasteners. A fixture characterized by:

8. In the fitting according to claim 1, The frame material has left and right vertical bones, The reinforcing member has both longitudinal ends fixed to the longitudinal bones. A fixture characterized by:

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