Swing door frame and swing door structure

Abstract

To provide a hinged door frame and a hinged door structure capable of improving workability while improving the holding force of a fixture.SOLUTION: A hinged door frame 10 is provided with a hanger-side vertical frame 13 in which a connecting member 30 that rotatably connects a door body 5 is fixed to a first surface side in a thickness direction by a fixture 9, and a holding member 26 provided on a second surface side in the thickness direction of the hanger-side vertical frame and holding the fixture, and a receiving groove 19 in which the holding member is housed is provided over the entire length, on the second surface side of the hanger-side vertical frame.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a hinged door frame and a hinged door structure. [Background technology]

[0002] Conventionally, there has been known a hinged door frame in which a door body is installed so as to be freely rotatable. A connecting member such as a hinge that connects the door body so as to be freely rotatable to the hanging side vertical frame of such a hinged door frame is fixed by a fastener such as a screw. Depending on the material of the hanging side vertical frame to which the fastener is attached, there is a concern that the holding force of the fastener may be weakened. For example, the following Patent Document 1 discloses an opening frame in which a female member embedding hole, which is formed by connecting a disk-shaped flange receiving part and a cylindrical screw receiving part, is provided on the back side of the base material of a door panel support frame material to which a door panel is rotatably connected. This opening frame is configured such that a female member is embedded in the female member embedding hole, into which a male member that fixes a frame material fixing part to the door panel support frame material is screwed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-155995 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the opening frame described in the above Patent Document 1, it was necessary to machine a female member embedding hole of a shape corresponding to the shape of the female member having a disk-shaped flange portion and a cylindrical screw-shaped portion into the door panel support frame material.

[0005] The present invention has been made in consideration of the above-mentioned situation, and aims to provide a hinged door frame and a hinged door structure that can improve the holding force of fasteners while also improving workability. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the hinged door frame of the present invention comprises a hanging side vertical frame to which a connecting member, which connects the door bodies so as to be freely rotatable, is fixed by a fastener on a first thickness-wise surface side, and a retaining member, which is provided on a second thickness-wise surface side of the hanging side vertical frame and holds the fastener, and is characterized in that a receiving groove into which the retaining member is placed is provided over the entire length on the second surface side of the hanging side vertical frame.

[0007] In order to achieve the above-mentioned object, the hinged door structure of the present invention is characterized in that a connecting member that connects the door bodies so as to be freely rotatable is fixed by a fastener on a first thickness-wise surface side of the hanging side vertical frame, and a receiving groove in which a retaining member that holds the fastener is placed is provided over the entire length on a second thickness-wise surface side of the hanging side vertical frame. Effect of the Invention

[0008] The hinged door frame and hinged door structure according to the present invention are configured as described above, and therefore can improve the holding power of the fasteners while also improving workability. [Brief description of the drawings]

[0009] [Figure 1] 1A and 1B are schematic diagrams showing an example of a hinged door frame according to one embodiment of the present invention and an example of a hinged door structure according to one embodiment of the present invention, in which (a) is a partially cutaway schematic front view, and (b) is a partially cutaway schematic cross-sectional view corresponding to the view of the X1-X1 line in (a). [Diagram 2] 1(a) is a schematic exploded cross-sectional view, with a portion omitted, corresponding to the view taken along the X2-X2 line in FIG. 1(a), and FIG. 1(b) is a schematic cross-sectional view, with a portion omitted, corresponding to the view taken along the X2-X2 line in FIG. 1(a). [Diagram 3] 1(a) to 1(d) are schematic side views, partially cut away, showing an example of a hanging-side vertical frame included in the swing door frame. [Figure 4]2(a) to 2(c) are schematic views showing an example of a hinged door frame according to another embodiment of the present invention and an example of a hinged door structure according to another embodiment of the present invention, in which 2(a) is a schematic cross-sectional view corresponding to FIG. 2(b), and 2(b) and 2(c) are schematic partially cutaway side views corresponding to FIGS. 3(c) and 3(d), respectively. [Diagram 5] 2(a) to 2(c) are schematic views showing an example of a hinged door frame according to yet another embodiment of the present invention and an example of a hinged door structure according to yet another embodiment of the present invention, in which 2(a) is a schematic cross-sectional view corresponding to FIG. 2(b), and 2(b) and 2(c) are schematic partially cutaway side views corresponding to FIGS. 3(c) and 3(d), respectively. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In some drawings, some of the detailed reference numerals used in other drawings are omitted. In each of the following embodiments, directions such as the up and down directions will be described based on the state in which the hinged door frame according to each embodiment is installed.

[0011] 1 to 3 are diagrams that diagrammatically show an example of a hinged door frame according to a first embodiment and an example of a hinged door structure using the same. As shown in Figures 1(a) and (b), the hinged door frame 10 of this embodiment is configured to allow a door body 5 to be freely rotatably attached to open and close an entrance / exit 4 that is provided to penetrate a wall 2 of a building such as a residence. The door body 5 is a generally rectangular flat plate that is long in the vertical direction. The door height of the door body 5 may be a dimension corresponding to the opening height of the doorway 4 with a hanging wall on the ceiling side as shown in the figure, or may be a dimension corresponding to the opening height of the doorway 4 from the floor to the ceiling. The door body 5 may be a so-called flush panel type configured by attaching a surface material to a frame-shaped core material. In the figure, the door body 5 is illustrated as having flat surfaces on both sides in the door thickness direction, but is not limited to this form, and may be provided with a frame portion, appropriate unevenness, a light-transmitting portion, a louver (ventilation portion), etc.

[0012] The door end 6 of the door body 5 is provided with a handle 7 that is operated when opening or closing the door body 5. Although not shown in the figure, the handles 7 are provided on both sides in the door thickness direction of the door end 6. These handles 7 are connected to a latch lock device (not shown) that is embedded in the door end 6 and has a latch head that protrudes and retracts in the door width direction. A door side member 31 of a connecting member 30 that rotatably connects the door body 5 to the door frame 10 is fixed to the trailing end 8 of the door body 5 with an appropriate fastener such as a screw. In the illustrated example, the connecting members 30, 30 are provided at multiple locations (two locations in the illustrated example) spaced apart in the door height direction of the door body 5. The trailing end 8 of the door body 5 may be provided with a recess for receiving a plate-shaped door side fixing part of the door side member 31 that is arranged so that its thickness direction is the door width direction. A pilot hole or the like that opens at the concave bottom surface of this recess and communicates with a fastener insertion hole provided in the door side fixing part may be provided.

[0013] As shown in Figure 2, the hinged door frame 10 has a hanging side vertical frame 13 to which a connecting member 30 is fixed by a fastener 9 on the first thickness direction surface (the projected surface facing the center of the opening width direction of the entrance / exit 4). As shown in Fig. 1(b) and Fig. 2, the connecting member 30 includes a door side member 31 having a door side fixing part fixed to the door body 5, and a frame side member 33 having a frame side fixing part 34 fixed to the hanging side vertical frame 13. The door side member 31 and the frame side member 33 are provided with connecting parts 32, 36 that rotatably connect them to each other. These connecting parts 32, 36 may be configured such that one of them is provided with an axis part, and the other is provided with a bearing part that receives the axis part so that it can be inserted and removed. The connecting member 30 may be a so-called pull-out hinge that is folded so that the door side fixing part of the door side member 31 and the frame side fixing part 34 of the frame side member 33 are overlapped when the door body 5 is in the closed position.

[0014] As shown in Fig. 2(a) and Fig. 3(c), the frame side fixing part 34 is provided with a plurality of insertion holes 35 through which the shaft part of the fastener 9 is inserted. In the illustrated example, five insertion holes 35 are provided in the frame side fixing part 34. Two of the five insertion holes 35 are provided at intervals in the door height direction at the center part in the vertical frame projection direction, and the remaining three insertion holes 35 are provided at intervals in the door height direction at the first end part side in the vertical frame projection direction. The connecting member 30 is not limited to one in which the door side member 31 and the frame side member 33 are separable, and may be a so-called flat hinge in which the door side member 31 and the frame side member 33 are inseparably connected by a connecting shaft, or may be one having various other configurations.

[0015] As shown in FIG. 1(a), the hinged door frame 10 includes an upper frame 11, the upper end of which is joined to a first longitudinal end (hanging end) of the hanging side vertical frame 13, and a door end side vertical frame 12, the upper end of which is joined to a second longitudinal end (door end) of the upper frame 11. In the illustrated example, the four sides of the upper and lower sides and both sides of the opening width direction of the entrance 4 are partitioned by the hinged door frame 10 having the upper frame 11, the door end side vertical frame 12, and the hanging side vertical frame 13, and the floor. The hinged door frame 10 may include a bottom frame (sill) that partitions the lower side of the entrance 4. The hinged door device 1 may be composed of the hinged door frame 10 and the door body 5. The hinged door frame 10 is fixed to a frame base 3 provided to partition an opening in a wall 2 of a building such as a residence, by an appropriate fastener such as a screw. In the example shown in the figure, a fixed frame-shaped hinged door frame 10 is shown in which the projected dimension along the wall thickness direction is larger than the wall thickness dimension of the wall body 2 so that dust portions are formed on both sides in the wall thickness direction, but this is not limited to this form and the hinged door frame 10 may be a casing frame-shaped hinged door frame equipped with a casing frame.

[0016] The upper frame 11 is elongated in the door width direction and defines the upper side (ceiling side) of the entrance 4. The upper frame 11 is generally strip-shaped and arranged so that the thickness direction is the up-down direction. In the illustrated example, a hanging wall that hangs down from the ceiling is provided above the upper frame 11, but the upper frame 11 may be attached to or embedded in the ceiling. The first surface in the thickness direction of the upper frame 11, which is the projected surface facing downward, may be provided with a door stopper that protrudes downward and extends in the door width direction, similar to the door end vertical frame 12 and the hanging side vertical frame 13 described later. The upper frame 11 may be configured by wrapping a surface plate around a base material, similar to the hanging side vertical frame 13 described later. The longitudinal ends of the upper frame 11 and the end-side vertical frame 12 and the hanging-side vertical frame 13 may be joined by suitable dowel-shaped joints or fasteners, etc. In the example shown in the drawing, the longitudinal ends of the upper frame 11 and the end-side vertical frame 12 and the hanging-side vertical frame 13 are joined in a vertical manner, but they may also be joined in a horizontal manner.

[0017] The door end side vertical frame 12 is elongated in the door height direction and defines the door end side of the entrance 4. The door end side vertical frame 12 is substantially strip-shaped with its thickness direction being the door width direction. Although not shown, the door end side vertical frame 12 is provided with a latch receiver (strike) that receives the latch head of the latch lock device provided on the door body 5. On the first surface of the door end side vertical frame 12 in the thickness direction, which is the projected surface facing the center of the opening width direction of the entrance 4, as shown in FIG. 1(b), a door stopper 12b is provided that protrudes toward the center of the opening width direction of the entrance 4 and extends in the door height direction. The door stopper 12b is attached to a mounting groove 12a provided in the door end side vertical frame 12. The door end side vertical frame 12 may be configured by wrapping a surface plate around a base material, similar to the hanging side vertical frame 13 described later.

[0018] The hanging side vertical frame 13 is elongated in the door height direction and defines the hanging side of the entrance / exit 4. The hanging side vertical frame 13 is generally band-shaped and arranged so that its thickness direction is the door width direction. A door stop 15 is provided on the projected surface of the hanging side vertical frame 13, which protrudes toward the center of the opening width direction of the entranceway 4 and extends in the door height direction. As shown in Figures 2(a) and (b), the door stop 15 is attached to a mounting groove 14 provided in the hanging side vertical frame 13. The door stop 15, the door stop portion of the upper frame 11, and the door stop portion 12b of the door end side vertical frame 12 are provided so as to be in the same position in the door thickness direction (projected direction) so as to be in contact with or adjacent to one side of the thickness direction of the door body 5 in the closed state.

[0019] The hanging side vertical frame 13 is provided with a recess 16 for receiving the frame side fixing part 34 of the connecting member 30. The recess 16 is shaped in accordance with the frame side fixing part 34 when viewed in the vertical frame thickness direction so that the plate-shaped frame side fixing part 34 arranged so that the thickness direction is the vertical frame thickness direction (thickness direction of the hanging side vertical frame 13) can be received (see Figs. 3(a) and (c)). The recess 16 is provided so as to open toward the center side in the opening width direction of the entrance 4 and toward the outside in the projection direction on the projection surface of the first end side part of the hanging side vertical frame 13 in the projection direction. The depth dimension of the recess 16 along the vertical frame thickness direction is a dimension corresponding to the thickness dimension of the frame side fixing part 34. The depth dimension of the recess 16 may be the same dimension as the thickness dimension of the frame side fixing part 34, or may be slightly larger or smaller than the thickness dimension of the frame side fixing part 34. As described above, the recesses 16 are provided in the hanging side vertical frame 13 at positions and in a number corresponding to the connecting members 30, 30 provided at multiple locations spaced apart in the door height direction of the door body 5.

[0020] As shown in Fig. 3(a), the hanging-side vertical frame 13 is provided with pilot holes 17 into which fasteners 9 such as screws are screwed so as to open at the concave bottom surface of the recess 16. The illustrated example shows an example in which two pilot holes 17 are provided so as to be positioned to coincide with two upper and lower insertion holes 35 out of three insertion holes 35 provided on the first end side of the frame-side fixing part 34 in the vertical frame projection direction (see also Fig. 3(c)). The hanging side vertical frame 13 is provided with a through hole 18 that opens at the bottom of the recess 16 and penetrates in the thickness direction. The illustrated example shows an example in which a plurality of through holes 18 are provided. The illustrated example shows an example in which three through holes 18 are provided so as to be positioned to coincide with one central through hole 35 of the three through holes 35 provided on the first end side of the frame side fixing part 34 described above and two through holes 35 provided in the central part of the frame side fixing part 34 in the vertical frame projection direction.

[0021] 2(a) and (b), a retaining member 26 is provided on the second thickness-wise surface side of the hanging-side vertical frame 13, which is the surface side facing outward in the opening width direction of the entrance / exit 4 (the frame base 3 side), for retaining the fastener 9 that secures the connecting member 30 to the hanging-side vertical frame 13. This configuration can improve the holding power of the fastener 9. As a result, as described later, the base material 20 of the hanging-side vertical frame 13 can be formed using a wood-based material such as particle board, which has a relatively weak holding power of the fastener 9. A receiving groove 19 for receiving a retaining member 26 is provided over the entire length on the frame base 3 side of the hanging side vertical frame 13. This configuration improves workability compared to the above-mentioned Patent Document 1, which requires machining a female member embedding hole having a shape in which a disk-shaped flange receiving portion and a cylindrical screw receiving portion are connected. The specific configuration of the retaining member 26 will be described later.

[0022] In this embodiment, the hanging side vertical frame 13 includes a base material 20 and a surface plate 25 that is provided so as to be wound around the base material 20. A recessed step portion (first recessed step portion) 22 that receives a first end portion 25a of the surface plate 25 is provided over the entire length on the frame base 3 side of the first end portion (first end portion in the prospective direction) 21 of the base material 20. The receiving groove 19 is defined at its groove bottom by the step bottom surface 22a of the first recessed step portion 22, and both sides in the groove width direction are defined by the first end portion 25a of the surface plate 25 and the step wall surface 22b of the first recessed step portion 22. With this configuration, the receiving groove 19 can be formed by the first recessed step portion 22 provided in the base material 20 to receive the first end portion 25a of the surface plate 25 and the first end portion 25a of the surface plate 25, and workability can be further improved.

[0023] The base material 20 is substantially strip-shaped. The first recessed step 22 of the base material 20 is provided so as to open toward the frame base 3 side and toward the outside in the projection direction. A second recessed step 24 that receives a second end 25b of the front panel 25 is provided over the entire length on the frame base 3 side of the second end (second end in the projection direction) 23 of the base material 20. This second recessed step 24 is provided so as to open toward the frame base 3 side and toward the outside in the projection direction. The step dimension of the first recessed step 22 and the second recessed step 24 on both sides in the projection direction along the vertical frame thickness direction corresponds to the thickness dimension of the front panel 25. The step dimension of the first recessed step 22 and the second recessed step 24 may be the same as the thickness dimension of the front panel 25, or may be slightly smaller than the thickness dimension of the front panel 25.

[0024] The step bottom width dimension of the first recessed step portion 22 along the projection direction is larger than the width dimension of the first end portion 25a of the surface plate 25 along the projection direction. The step bottom width dimension of the first recessed step portion 22 is the width dimension of the first end portion 25a of the surface plate 25 plus the groove width dimension of the receiving groove 19 along the projection direction. In other words, the first end portion 25a of the surface plate 25 is attached to the first recessed step portion 22 of the base material 20 so that the receiving groove 19 is formed at the center side of the projection direction. The step dimension of the first recessed step portion 22 and the thickness dimension of the first end portion 25a become the depth dimension of the receiving groove 19 along the vertical frame thickness direction. The above-mentioned pilot hole 17 is provided so as to be located within the groove width of the receiving groove 19 when viewed in the vertical frame thickness direction (see FIG. 3(b)). The above-mentioned through hole 18 is provided so as to open at the groove bottom of the receiving groove 19. In other words, the receiving groove 19 is provided so as to extend along the entire longitudinal direction of the vertical frame at the position where the pilot hole 17 and the through hole 18 which serve as the fastening portion of the fastener 9 for fixing the frame side fixing portion 34 are provided.

[0025] The width dimension of the step bottom surface of second recessed step portion 24 along the projection direction corresponds to the width dimension of second end portion 25b of surface plate 25 along the projection direction. The width dimension of the step bottom surface of second recessed step portion 24 may be the same as the width dimension of second end portion 25b of surface plate 25, or may be slightly larger than the width dimension of second end portion 25b of surface plate 25. The substrate 20 may be made of a wood-based material such as particle board or wood fiber board that has a relatively low holding power for the fastener 9. The substrate 20 may be made of various other wood-based materials, such as a wood laminate such as plywood or LVL (laminated veneer lumber), or a wood flour-plastic composite (WPC) made of a synthetic resin material containing wood flour, inorganic filler, compatibilizer, colorant, etc. in a predetermined content ratio.

[0026] The surface plate 25 is thin. The thickness of the surface plate 25 may be, for example, about 1 mm to 5 mm, or about 1.5 mm to 3 mm. The surface plate 25 may be configured such that a decorative layer is provided on the surface side of a surface base material such as a wood-based board such as MDF (medium density fiberboard) or a fiber-reinforced resin layer containing a reinforced fiber sheet such as glass fiber, by attaching a decorative sheet such as veneer or a resin film or by appropriate painting. This surface plate 25 is folded at bending grooves provided on the back side so as to be positioned according to the corners of the base material 20, and is attached so as to cover the visible surface of the base material 20, both end faces in the visible direction, and both end portions in the visible direction of the side surface of the frame base 3. In other words, the surface plate 25 includes a portion covering the visible surface of the base material 20, a portion covering each end face in the visible direction of the base material 20, a first end 25a covering the frame base 3 side surface of the first end 21 of the base material 20, and a second end 25b covering the frame base 3 side surface of the second end 23 of the base material 20. In the illustrated example, the bent grooves in the portion covering the visible surface of the surface plate 25 and the portions covering each end surface in the visible direction are provided so that the surface side has a chamfered shape.

[0027] In the illustrated example, the width dimension of the first end 25a and the width dimension of the second end 25b of the surface plate 25 are approximately the same, but are not limited to such dimensions. The width dimensions of the first end 25a and the second end 25b may be appropriately set in accordance with the viewpoint of suppressing peeling from the base material 20, the position of the receiving groove 19, etc. When a dust portion is provided as in the illustrated example, the width dimensions of the first end 25a and the second end 25b may be equal to or larger than the dimension along the expected direction of the dust portion so that the base material 20 is not exposed. In other words, the first end 25a and the second end 25b may be configured to abut against the end face of the wall material constituting the inner periphery of the opening formed in the wall body 2 or the frame base 3. The width dimensions of the first end 25a and the second end 25b may be, for example, 10 mm or more, and preferably 15 mm or more. The above-mentioned mounting groove 14 is provided so as to penetrate through this front plate 25 and reach the base material 20. Although the above-mentioned recess 16 is shown as being provided only in the front plate 25 as an example, it may be provided so as to reach the base material 20 as well.

[0028] The holding member 26 is configured so that the holding force of the fastener 9 screwed into the holding member 26 is greater than the holding force of the fastener 9 when the fastener 9 is screwed directly into the base material 20 . In this embodiment, the retaining member 26 includes a tubular portion 27 that is inserted into the through hole 18 provided in the hanging-side vertical frame 13, and a flange-like portion 29 that is larger in diameter than the tubular portion 27 and is received in the receiving groove 19. With this configuration, the fastener 9 can be attached to the tubular portion 27, whose movement toward the head side is restricted by the flange-like portion 29, so that the retaining force of the fastener 9 can be further improved. In this embodiment, the retaining member 26 is configured to have a single flange portion 29 and a plurality of (three in the illustrated example) cylindrical portions 27. That is, the plurality of cylindrical portions 27 are integrally provided by the flange portion 29. With this configuration, it is possible to prevent the retaining member 26 from rotating when the fastener 9 is screwed in, compared to the female member having a disk-shaped flange portion and a cylindrical screw portion described in the above Patent Document 1.

[0029] These cylindrical portions 27 have the same configuration and are provided at positions that correspond to the multiple through holes 18 of the hanging-side vertical frame 13 so that they can be inserted into each of these through holes 18. These cylindrical portions 27 are substantially cylindrical with their axial direction aligned with the thickness direction of the vertical frame. The length dimension of these cylindrical portions 27 along the axial direction may be equal to or smaller than the dimension of the through hole 18 along the thickness direction of the vertical frame so that these cylindrical portions 27 do not protrude on the visible surface side of the through hole 18. These cylindrical portions 27 are provided with female threaded holes 28 that serve as holding portions for the shafts of the fasteners 9. These female threaded holes 28 are provided so as to open toward one side in the thickness direction of the vertical frame (the doorway 4 side). The holding portion for the shafts of the fasteners 9 provided in the cylindrical portions 27 is not limited to the female threaded holes 28, and may be a pilot hole to which the shafts of the fasteners 9 are fastened.

[0030] In this embodiment, the thickness dimension of the flange portion 29 along the vertical frame thickness direction is equal to or less than the depth dimension along the vertical frame thickness direction of the receiving groove 19. With this configuration, the flange portion 29 does not protrude from the side surface of the frame base 3 of the hanging side vertical frame 13, and interference of the flange portion 29 with the frame base 3 can be suppressed. The dimensions of this flange portion 29 along the vertical frame projection direction and the vertical frame longitudinal direction are set to appropriate dimensions so that the above-mentioned multiple tubular portions 27 can be provided. In the illustrated example, the dimension of this flange portion 29 along the vertical frame projection direction is set to be approximately the same as the groove width dimension of the receiving groove 19, but is not limited to such a dimension. In the illustrated example, the dimension of this flange portion 29 along the vertical frame longitudinal direction is set to be a dimension that fits between two pilot holes 17 on both the upper and lower sides provided on the first end side in the vertical frame projection direction, but is not limited to such a dimension. The holding member 26 may be made of a metal-based material, or may be made of a hard synthetic resin-based material.

[0031] The retaining member 26 configured as above may be attached to the hanging-side vertical frame 13 by press-fitting the tubular portion 27, whose outer diameter is slightly larger than the inner diameter of the through hole 18, into the through hole 18. The outer peripheral surface of the tubular portion 27 may be provided with an appropriate anti-pullout protrusion that bites into the inner peripheral surface of the through hole 18. Instead of this configuration, the retaining member 26 may be attached to the hanging-side vertical frame 13 with an adhesive or an appropriate fastener. The retaining member 26 may be shipped from a factory or the like in a state in which it is attached to the hanging-side vertical frame 13 in advance. In this case, the frame side member 33 of the connecting member 30 may be fixed to the hanging-side vertical frame 13 in advance. Alternatively, the retaining member 26 may be attached to the hanging-side vertical frame 13 at a construction site or the like. In this case, at least the through holes 18 and the pilot holes 17, and / or the recesses 16 may be machined in the hanging-side vertical frame 13 at a construction site or the like.

[0032] The hinged door frame 10 configured as above may be fixed to the frame base 3 in a state where the door-end vertical frame 12 is joined to the door-end end of the upper frame 11, and the hanging-side vertical frame 13 to which the retaining member 26 is attached is joined to the hanging-side end of the upper frame 11, and assembled into a three-sided frame. The door body 5 may be attached to the hanging-side vertical frame 13 via the connecting member 30 so as to be freely rotatable. In the hinged door structure using the hinged door frame 10 configured as above, the connecting member 30 that rotatably connects the door bodies 5 is fixed by the fastener 9 to the projected surface side of the hanging side vertical frame 13. In this hinged door structure, a receiving groove 19 that houses a retaining member 26 that holds the fastener 9 is provided over the entire length on the surface side of the hanging side vertical frame 13 that faces the frame base 3. With this configuration, the retaining member 26 can improve the holding force of the fastener 9 that fixes the frame side member 33 of the connecting member 30 to the hanging side vertical frame 13.

[0033] Next, another embodiment will be described. In the following embodiments, differences from the previously described embodiments will be mainly described, and the same configurations will be denoted by the same reference numerals and their description will be omitted or briefly described. In the following embodiments, the description of the effects achieved in the same manner as in the previously described embodiments will be omitted or briefly described.

[0034] 4(a) to 4(c) are diagrams that diagrammatically show an example of a hinged door frame according to the second embodiment and an example of a hinged door structure using the same. The hinged door frame 10A according to this embodiment differs from the above-described example mainly in the configurations of a holding member 26A and a connecting member 30A. In the connecting member 30A, the dimension of the frame side fixing part 34A of the frame side member 33A along the vertical frame longitudinal direction is smaller than that of the above-mentioned example. This frame side fixing part 34A is provided with four insertion holes 35 so as to form two rows in the vertical frame longitudinal direction and two columns in the vertical frame projection direction. This connecting member 30A may be a so-called flag hinge in which the door side fixing part of the door side member 31A and the frame side fixing part 34A of the frame side member 33A are folded at a position shifted in the door height direction when the door body 5 (see FIG. 1) is in the closed position.

[0035] A recess 16A corresponding to the shape of the frame-side fixing part 34A is provided on the projected surface side of the hanging-side vertical frame 13A. The hanging-side vertical frame 13A is provided with pilot holes 17 similar to those described above that open at the concave bottom surface of this recess 16A. In the illustrated example, two pilot holes 17 are provided so as to coincide with the two lower insertion holes 35 of the four insertion holes 35 of the frame-side fixing part 34A described above (see FIG. 4(c)). The hanging-side vertical frame 13A is provided with a through hole 18 similar to the above, which opens at the bottom of the recess 16A and penetrates in the thickness direction. In the illustrated example, two through holes 18 are provided so as to coincide with the upper two through holes 35 of the four through holes 35 of the frame-side fixing part 34A described above.

[0036] The holding member 26A is configured to have one flange portion 29A and two cylindrical portions 27. The holding member 26A is attached by inserting the two cylindrical portions 27 into the two through holes 18, respectively. In the example shown in the figure, the dimension of flange portion 29A along the vertical frame projection direction is approximately the same as the groove width dimension of receiving groove 19, and the dimension of flange portion 29A along the vertical frame longitudinal direction is smaller than the dimension of flange portion 29A along the vertical frame projection direction, but is not limited to these dimensions.

[0037] In each of the above-described embodiments, an example is shown in which two or three cylindrical portions 27 are provided on the flange portion 29, 29A of the holding member 26, 26A, but one or four or more cylindrical portions 27 may be provided. When one cylindrical portion 27 is provided on the flange portion 29, 29A of the holding member 26, 26A, the flange portion 29, 29A may be configured to be capable of preventing rotation within the receiving groove 19. The holding member 26, 26A having the cylindrical portion 27 and the flange portion 29, 29A may have various other configurations. In each of the above-described embodiments, the holding member 26, 26A is provided with the cylindrical portion 27 to be inserted into the through hole 18 of the hanging-side vertical frame 13, 13A, and the flange-shaped portion 29, 29A having a larger diameter than the cylindrical portion 27 and accommodated in the receiving groove 19, but the present invention is not limited to such an example. For example, the holding member may be a flat plate-shaped member that does not have the above-described cylindrical portion 27. In this case, the flat plate-shaped holding member may be provided with a female screw hole or a pilot hole that serves as a fastening portion for the fastener 9.

[0038] 5(a) to (c) are diagrams that diagrammatically show an example of a hinged door frame according to a third embodiment and an example of a hinged door structure using the same. The hinged door frame 10B according to this embodiment differs from the above-described example mainly in the configurations of the receiving groove 19A and the holding member 26B of the hanging-side vertical frame 13B. The hanging side vertical frame 13B is provided with three similar pilot holes 17 opening at the concave bottom surface of the recess 16 so as to coincide with the three insertion holes 35 at the first end side in the vertical frame projection direction of the frame side fixing part 34. The hanging side vertical frame 13B is provided with two similar through holes 18 opening at the concave bottom surface of the recess 16 and penetrating in the thickness direction so as to coincide with the two insertion holes 35 at the center part of the frame side fixing part 34 in the vertical frame projection direction.

[0039] The receiving groove 19A is provided separately from the first recessed step portion 22A of the base material 20. The first recessed step portion 22A of the base material 20 has a step bottom surface width dimension that corresponds to the width dimension of the first end portion 25a of the front panel 25 along the projection direction. The depth of this receiving groove 19A is greater than that of the above-mentioned example, and the groove width is smaller than that of the above-mentioned example. The depth of this receiving groove 19A is greater than the thickness of the surface plate 25. The groove width of this receiving groove 19A is set to a dimension corresponding to the through hole 18 so that the through hole 18 can open at the bottom of the groove. In the illustrated example, the groove width of the receiving groove 19A is set so that it does not overlap with the pilot hole 17 when viewed in the thickness direction of the vertical frame.

[0040] The retaining member 26B is in the form of a block that is entirely fitted into the receiving groove 19A, which has a relatively large depth. In the illustrated example, the dimension of the retaining member 26B in the groove depth direction is approximately the same as the depth of the receiving groove 19A, but it may be smaller than the depth of the receiving groove 19A. The holding member 26B is provided with a press-fit portion 27B whose dimension along the groove width direction of the receiving groove 19A is larger than the groove width dimension of the receiving groove 19A. In the illustrated example, the press-fit portion 27B is provided at a substantially central portion of the groove longitudinal direction of the holding member 26B, and the dimensions along the groove width direction of both sides of the groove longitudinal direction are substantially the same as the groove width dimension of the receiving groove 19A. A retaining protrusion that bites into the groove wall of the receiving groove 19A may be provided on the outer periphery of the press-fit portion 27B. The press-fit portion 27B is provided with a female screw hole 28B that serves as a holding portion for the shaft portion of the fastener 9 similar to the above. The holding member 26B is inserted into the receiving groove 19A so that the female screw hole 28B is in a position communicating with the through hole 18 and attached. That is, in this embodiment, the holding member 26B is not provided with a portion that is inserted into the through hole 18.

[0041] The holding member 26B is not limited to the above-mentioned configuration, and various other modifications are possible. In this embodiment, the receiving groove 19A is provided separately from the first concave step portion 22A of the base material 20, so it is not limited to the hanging side vertical frame 13B having the base material 20 and the surface panel 25, and may be a hanging side vertical frame having various other configurations. In each of the above embodiments, the connecting members 30, 30A are examples of flat hinges or flag hinges, but they may be slide hinges or various other hinges. The different configurations described in the above embodiments may be appropriately modified, rearranged, or combined as necessary. The above-described configurations of each member and each part of the hinged door frames 10, 10A, 10B according to the above-described embodiments are merely examples, and various other modifications are possible. [Explanation of symbols]

[0042] 10, 10A, 10B Swing door frame 13, 13A, 13B Hanging side vertical frame 18 Through hole 19,19A Receiving groove 20 Base material 21 1st end (1st end in the prospective direction) 22 1st concave step (concave step) 22a Step bottom surface 22b Step wall surface 25 Surface plate 25a 1st end 26, 26A, 26B Retaining member 27 Cylindrical section 29,29A Flange 30,30A Connecting member 5. House 9 Fasteners

Claims

1. The door body is rotatably connected to a connecting member on a first surface side in the thickness direction of the hanging side vertical frame, and a holding member is provided on a second surface side in the thickness direction of the hanging side vertical frame to hold the fixing member. A hinged door frame, characterized in that a receiving groove for receiving the retaining member is provided along the entire length on the second surface side of the hanging side vertical frame.

2. In claim 1, a first end of the surface panel and a second end of the surface panel, the first end being provided on the second surface side of the surface panel in the thickness direction; a recessed step portion is provided along the entire length of the first end of the surface panel and the second end of the surface panel is provided on the second surface side of the surface panel in the thickness direction; the receiving groove has a bottom defined by a step bottom surface of the recessed step portion and both sides in the groove width direction are defined by the first end of the surface panel and the step wall surface of the recessed step portion.

3. In claim 1 or 2, This hinged door frame is characterized in that the retaining member comprises a cylindrical portion that opens at the bottom of the receiving groove and is inserted into a through hole provided in the hanging side vertical frame so as to penetrate in the thickness direction, and a flange-shaped portion that is larger in diameter than the cylindrical portion and is fitted into the receiving groove.

4. In claim 3, A hinged door frame, characterized in that the thickness dimension of the flange-shaped portion along the vertical frame thickness direction is equal to or less than the depth dimension of the receiving groove along the vertical frame thickness direction.

5. This hinged door structure is characterized in that a connecting member that connects the door bodies rotatably is fixed by a fastener on a first surface side in the thickness direction of the hanging vertical frame, and a receiving groove in which a holding member that holds the fastener is placed is provided over the entire length on a second surface side in the thickness direction of the hanging vertical frame.

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