door

The door design addresses the complexity of existing finger pinching prevention structures by using a protruding portion on the door body to maintain a controlled gap with the vertical frame, resulting in a simpler, more aesthetically pleasing, and effective finger pinching prevention mechanism.

JP2025088192APending Publication Date: 2025-06-11SANWA SHUTTER CORP
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Patent Information

Application Number
JP2023202732
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-30
Publication Date
2025-06-11

AI Technical Summary

Technical Problem

Existing door designs with finger pinching prevention structures have complex shapes with multiple bent parts, leading to a less aesthetically pleasing appearance and a desire for a simpler, more design-friendly configuration.

Method used

The door design incorporates a protruding portion on the door body that extends flush with the outdoor finding surface, forming a gap with the vertical frame that is maintained within a predetermined reference value, thus creating a simpler and more design-oriented finger pinching prevention structure.

Benefits of technology

This design enhances the aesthetic appeal by creating a neat appearance and improves the design properties while effectively preventing finger pinching between the door body and the vertical frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a door provided with a simpler configuration and a finger pinch prevention structure excellent in design.SOLUTION: A door comprises a door body 5 rotatably attached on an opening frame with a center suspended pivot hinges PH1, PH2, wherein a door tail-side vertical frame 3 of the opening frame is provided with an exterior-side depth face 31, and an intermediate width face 33 at an interior side of the exterior-side depth face 31, a door tail-side part of the door body 5 is provided with a door tail-side depth face 56, and a door tail-side protruding face 57 positioned at an exterior side of the door tail-side depth face 56 to extend to be flush with an exterior-side width face 50 of the door body 5, and a gap between a tip of the door tail-side protruding face 57 of the door body 5 and the exterior-side depth face 31 of the door tail-side vertical frame 3 is maintained within a dimension of a specific reference value when the door body 5 is in a closed posture and at least when a specific rotation from open / close postures.SELECTED DRAWING: Figure 5
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Description

Technical Field

[0001] The present invention relates to a door, and more particularly to a door comprising a door body rotatably attached to an opening frame by a central suspension pivot hinge.

Background Art

[0002] Regarding the finger pinching prevention structure on the door bottom side of a hinged door, for example, it is described in Patent Document 1. The finger pinching prevention structure described in Patent Document 1 includes a finger pinching prevention part for preventing a user's finger from being pinched between the finger pinching prevention part and the vertical frame on the door bottom side of the frame body regardless of the rotation state of the door body. The planar shape of the finger pinching prevention part is a polygonal line shape capable of avoiding contact between the finger pinching prevention part and the vertical frame on the door bottom side regardless of the rotation state of the door body, and is formed in a polygonal line shape having at least two or more bent parts. And, on the vertical frame on the door bottom side, a mating part for covering the gap between the vertical frame on the door bottom side and the door body is formed, and the distance between the tip of the mating part and the finger pinching prevention part is set to a distance where a user's finger cannot be inserted.

[0003] Here, the above-mentioned finger pinching prevention part has a somewhat complex shape with a plurality of bent parts in a plan view, and since it protrudes from the outdoor side finding surface of the door body, improvement in the design aspect has been desired. Further, the vertical frame on the door bottom side is provided with a mating part extending in the finding direction so as to cover the outdoor side of the gap on the door bottom side of the door body, and the distance between the finger pinching prevention part and the tip of the mating part is set to a predetermined distance.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a door having a simpler configuration and a finger pinching prevention structure excellent in design.

Means for Solving the Problems

[0005] The technical means adopted by the present invention to solve such problems is that In a door comprising a door body rotatably attached to an opening frame by a central suspension pivot hinge, The vertical frame on the doorstop side of the opening frame includes a prospective surface and an indoor finding portion on the indoor side of the prospective surface. The doorstop-side portion of the door body includes a doorstop-side prospective surface and a protruding portion located on the outdoor side of the doorstop-side prospective surface and extending substantially flush with the outdoor finding surface of the door body. The gap between the tip of the protruding portion of the door body and the prospective surface of the vertical frame on the doorstop side is maintained within a predetermined reference value during the closed position of the door body and at least during a predetermined rotation from the opening / closing position. It is a door.

[0006] In one aspect, the vertical frame on the doorstop side has an inclined surface in plan view located between the prospective surface and the indoor finding portion. The gap between the tip of the protruding portion of the door body and the inclined surface of the vertical frame on the doorstop side is maintained within a predetermined reference value when the door body is opened and closed.

[0007] In one aspect, the protruding portion is integrally formed by folding the surface material of the door body into a hollow shape.

[0008] In one aspect, reinforcing members are provided at least at the upper end portion and the lower end portion in the hollow portion of the protruding portion. In one aspect, the reinforcing member has an L-shaped cross-section view composed of a finding piece and a prospective piece, the finding piece is located inside the hollow portion, and the prospective piece is in contact with the outside of the portion of the surface material forming the doorstop-side prospective surface of the door body. The above-mentioned reinforcing member may be provided over the entire height of the protruding portion.

[0009] In one aspect, a vertically extending doorstop-side vertical frame is built into the doorstop-side portion of the door body. Inside the part of the surface material, the projected piece of the door bottom side vertical frame is in contact. The projected piece of the reinforcing material, the part of the surface material, and the projected piece of the door bottom side vertical frame are fixed by fastening means. In one aspect, the components of the central suspension pivot hinge are fixed to the projected pieces of the door body and the door bottom side vertical frame by the fastening means. The fastening means includes screws and rivets (blind rivets).

[0010] In one aspect, the door tip side part of the door body includes a door tip side projected surface and a door tip side protrusion that is located on the outdoor side of the door tip side projected surface and extends flush with the outdoor side finding surface of the door body. The door tip side protrusion is integrally formed by folding and bending the surface material of the door body into a hollow shape. In one aspect, at least in the upper end part and the lower end part, reinforcing materials are provided in the hollow part of the protrusion. In the hollow part of the door tip side protrusion, a door tip side reinforcing material is provided over the height direction. The door tip side reinforcing material includes a finding piece and a projected piece. The finding piece is located inside the hollow part of the door tip side protrusion, and the projected piece is located inside the part of the surface material that forms the door tip side projected surface of the door body.

Advantages of the Invention

[0011] In the present invention, on the door bottom side of the door body, a finger pinching prevention structure is formed by a protrusion that extends substantially flush with the outdoor side finding surface, so the appearance is neat and the design property is improved. Also, the protrusion functions as a blind for closing the gap between the door bottom side vertical frame and the door bottom side part of the door body from the outdoor side when the door body is in the fully closed position.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0013] [A] Overall Configuration of the Door As shown in FIG. 1, the door according to this embodiment is a rectangular frame body composed of an upper frame 1, a leading edge side vertical frame 2, a trailing edge side vertical frame 3, and a lower frame 4, and a door body 5 rotatably attached to the opening frame by a center suspension pivot hinge (the upper pivot hinge PH1 and the lower pivot hinge PH2).

[0014] [A-1] Opening Frame [A-1-1] Upper Frame The upper frame 1 is a long member extending horizontally. As shown in FIG. 2, the upper frame 1 of the opening frame includes an outdoor-side finding surface 10, an outdoor-side lower surface 11 extending horizontally from the lower end of the outdoor-side finding surface 10 to the indoor side, an indoor-side lower surface 12 located below the outdoor-side lower surface 11 and extending horizontally, and a groove formed between the indoor-side portion of the outdoor-side lower surface 11 and the outdoor-side portion of the indoor-side lower surface 12. An airtight member 13 extending across the entire width of the opening is fitted into the groove.

[0015] [A-1-2] Lower frame The lower frame 4 is a long member extending horizontally. As shown in FIG. 2, the lower frame 4 of the opening frame includes an outdoor-side finding surface 40, an outdoor-side upper surface 41 extending horizontally from the upper end of the outdoor-side finding surface 40 to the indoor side, an indoor-side upper surface 42 located above the outdoor-side upper surface 41 and extending horizontally and downwardly inclined toward the indoor side, and a groove formed between the indoor-side portion of the outdoor-side upper surface 41 and the outdoor-side portion of the indoor-side upper surface 42. An airtight member 43 extending across the entire width of the opening is fitted into the groove.

[0016] [A-1-3] Door-tip side vertical frame The door-tip side vertical frame 2 is a long member extending vertically. As shown in FIG. 3, the door-tip side vertical frame 2 of the opening frame includes an outdoor-side finding surface 20, an outdoor-side projection 21 extending from the inner end of the outdoor-side finding surface 20 to the indoor side, an indoor-side projection surface 22 located inside the outdoor-side projection 21, and a groove formed between the indoor-side end of the outdoor-side projection 21 and the outdoor-side end of the indoor-side projection surface 22. An airtight member 23 extending across the entire height of the opening is fitted into the groove.

[0017] As shown in FIG. 4, the outdoor-side projection 21 of the door-tip side vertical frame 2 of the opening frame includes an outdoor-side first projection surface 210 extending from the inner end of the outdoor-side finding surface 20 to the indoor side, an intermediate second projection surface 211 located inside the first projection surface 210, an outdoor-side third projection surface 212 located inside the second projection surface 211, an outdoor-side intermediate finding surface 213 extending between the indoor-side end of the first projection surface 210 and the outdoor-side end of the second projection surface 211, and an indoor-side intermediate finding surface 214 extending between the indoor-side end of the second projection surface 211 and the outdoor-side end of the third projection surface 212. In the illustrated embodiment, the third projection surface 212 forms the outer side of the groove.

[0018] [A-1-4] Door-end vertical frame (first embodiment) The door-end vertical frame 3 is a long member extending vertically. As shown in FIGS. 3 and 5, the door-end vertical frame 3 of the opening frame has an outdoor-side finding surface 30, an outdoor-side projecting surface 31 extending indoors from the inner end of the outdoor-side finding surface 30, an indoor-side projecting surface 32 located inside the outdoor-side projecting surface 31, an intermediate finding surface 33 extending between the indoor-side end of the outdoor-side projecting surface 31 and the outdoor-side end of the indoor-side projecting surface 32, and a groove formed at the inner end of the intermediate finding surface 33. An airtight member 34 extending over the entire height of the opening is fitted into the groove.

[0019] [A-1-5] Door-end vertical frame (second embodiment) As shown in FIGS. 3 and 6, the door-end vertical frame 3 of the opening frame has an outdoor-side finding surface 30, an outdoor-side projecting surface 31 extending indoors from the inner end of the outdoor-side finding surface 30, an indoor-side projecting surface 32 located inside the outdoor-side projecting surface 31, an intermediate finding surface 33 extending between the indoor-side end of the outdoor-side projecting surface 31 and the outdoor-side end of the indoor-side projecting surface 32, and a groove formed at the inner end of the intermediate finding surface 33. An airtight member 34 extending over the entire height of the opening is fitted into the groove. In the door-end vertical frame 3 shown in FIG. 6, a plane-view inclined surface 310 is provided between the outdoor-side projecting surface 31 and the intermediate finding surface 33.

[0020] [A-2] Door body The door body 5 according to this embodiment is rotatably attached to the opening frame by center suspension pivot hinges (the upper pivot hinge PH1 and the lower pivot hinge PH2). In a plan view, the rotation center P is located within the thickness of the door body 5 (in the illustrated aspect, slightly closer to the outdoor side from the center in the thickness direction). As shown in FIGS. 1 to 3, the door body 5 includes an outdoor side finding surface 50, an indoor side finding surface 51, an upper end surface 52, a lower end surface 53, a door tip side portion, and a door butt side portion. The door tip side portion of the door body 5 includes a door tip side prospective surface 54 and a door tip side protrusion 55 that is located outside the outdoor side of the door tip side prospective surface 54 and extends flush with the outdoor side finding surface 50. The door butt side portion of the door body 5 includes a door butt side prospective surface 56 and a door butt side protrusion 57 that is located outside the outdoor side of the door butt side prospective surface 56 and extends flush with the outdoor side finding surface 50. The indoor side portion of the door butt side prospective surface 56 is an inclined surface 58 that is inclined in a plan view. As shown in FIGS. 5 and 6, in the door body 5 according to this embodiment, the rotation center P is located on the door tip side of the base end of the door butt side protrusion 57. In the illustrated aspect, the rotation center P is located on the door tip side and the outdoor side of the inclined surface 58.

[0021] When the door body 5 is in the fully closed position, the upper end surface 52 of the door body 5 faces the outdoor side lower surface 11 of the upper frame 1, the lower end surface 53 faces the outdoor side upper surface 41 of the lower frame 4, the door tip side portion faces the outdoor side prospective portion 21 of the door tip side vertical frame 2, the door butt side portion faces the outdoor side prospective surface 31 of the door butt side vertical frame 3, and the peripheral edge portions around the indoor side finding surface 51 are in pressure contact with the upper airtight member 13, the lower airtight member 43, the door tip side airtight member 23, and the door butt side airtight member 34. The door butt side airtight member 34 has a finger pinching prevention function on the indoor side, and for this, reference can be made to the description in Patent Document 1.

[0022] The door body 5 is composed of a frame, i.e., a structural member, formed in a four-sided frame shape from an upper frame 60, a lower frame 61, a vertical frame 62 on the leading edge side of the door, and a vertical frame 63 on the trailing edge side of the door, a first surface material 7 and a second surface material 8 attached to the frame, and a core material 9 filled in the internal space. The outdoor-facing surface 50, indoor-facing surface 51, upper end surface 52, lower end surface 53, leading edge side end face 54 of the door body 5, and the leading edge side protrusion 55, trailing edge side end face 56, and trailing edge side protrusion 57 are formed by the first surface material 7 and the second surface material 8 bent into a predetermined shape.

[0023] [A-2-1] Upper frame and upper end part The upper frame 60 is a long member extending horizontally in the width direction of the opening. As shown in FIG. 2, it has a U-shaped cross section including an upper surface part 600, an outdoor-facing part 601, and an indoor-facing part 602. At the upper end of the main surface part 70 of the first surface material 7, an upper side 71 bent horizontally indoors is integrally formed. The upper end part of the main surface part 70 of the first surface material 7 is adhered to the outdoor-facing part 601 of the upper frame 60, and the upper side 71 is adhered to the outdoor half of the upper surface part 600 of the upper frame 60. At the upper end of the main surface part 80 of the second surface material 8, an upper side 81 bent horizontally outdoors is integrally formed. The upper end part of the main surface part 80 of the second surface material 8 is adhered to the indoor-facing part 602 of the upper frame 60, and the upper side 81 is adhered to the indoor half of the upper surface part 600 of the upper frame 60. The upper end surface 52 of the door body 5 is formed by the upper surface part 600 of the upper frame 60, the upper side 71 of the first surface material 7, and the upper side 81 of the second surface material 8.

[0024] [A-2-2] Lower frame and lower end part The lower frame 61 is a long member extending horizontally in the width direction of the opening. As shown in FIG. 2, it has a U-shaped cross-section including a lower surface portion 610, an outdoor finding portion 611, and an indoor finding portion 612. At the lower end of the main surface portion 70 of the first surface material 7, a lower side 72 bent horizontally indoors is integrally formed. The lower end portion of the main surface portion 70 of the first surface material 7 is adhered to the outdoor finding portion 611 of the lower frame 61, and the lower side 72 is adhered to the outdoor half portion of the lower surface portion 610 of the lower frame 61. At the lower end of the main surface portion 80 of the second surface material 8, a lower side 82 bent horizontally outdoors is integrally formed. The lower end portion of the main surface portion 80 of the second surface material 8 is adhered to the indoor finding portion 612 of the lower frame 61, and the lower side 82 is adhered to the indoor half portion of the lower surface portion 610 of the lower frame 61. The lower end surface 53 of the door body 5 is formed by the lower surface portion 610 of the lower frame 61, the lower side 72 of the first surface material 7, and the lower side 82 of the second surface material 8.

[0025] [A-2-3] Door tip side vertical frame and door tip side portion The door tip side vertical frame 62 is a long member extending vertically in the height direction of the opening. As shown in FIG. 4, it has a U-shaped cross-section including a prospective portion 620, an outdoor finding portion 621, and an indoor finding portion 622, and the outdoor finding portion 621 and the indoor finding portion 622 are in a posture facing the door tip side from the prospective portion 620. The outdoor finding portion 621 has a larger finding dimension than the indoor finding portion 622 and protrudes outside (door tip side) from the tip of the indoor finding portion 622.

[0026] A hollow folded-back side 73 is formed at the door tip side end of the main surface portion 70 of the first surface material 7, and the outdoor finding portion 621 of the door tip side vertical frame 62 is inserted into the hollow portion of the folded-back side 73. The door tip side portion of the main surface portion 70 of the first surface material 7 is adhered to the outdoor finding portion 621 of the door tip side vertical frame 62. At the door tip side end of the main surface portion 80 of the second surface material 8, a door tip side prospective side 83 bent vertically outdoors is integrally formed, and a bent piece 830 is formed at the tip of the door tip side prospective side 83.

[0027] The door tip side portion of the main surface portion 80 of the second surface material 8 is adhered to the indoor side finding portion 622 of the door tip side vertical frame 62, the door tip side prospective edge 83 is spaced apart and opposed to the prospective portion 620 of the door tip side vertical frame 62, and the bent piece 830 at the tip of the door tip side prospective edge 83 is in contact with the tip portion of the folded-back edge 73 on the door tip side of the first surface material 7. The door tip side prospective edge 83 of the second surface material 8 forms the door tip side prospective surface 54 of the door body 5, and the folded-back edge 73 forms the door tip side protruding portion 55 of the door body 5.

[0028] [A-2-4] Door bottom side vertical frame and door bottom side portion The door bottom side vertical frame 63 is a long member extending perpendicular to the height direction of the opening, and is formed by a prospective portion 630, an outdoor side finding portion 631, and an indoor side finding portion 632. The prospective portion 630 is formed in a stepped shape from an outdoor side prospective surface 6300, an indoor side prospective surface 6301 located inside the outdoor side prospective surface 6300, and an intermediate finding surface 6302 extending at the indoor side end of the outdoor side prospective surface 6300 and the outdoor side end of the indoor side prospective surface 6301. The outdoor side finding portion 631 has a larger finding dimension than the indoor side finding portion 632. The door bottom side vertical frame 63 has the outdoor side prospective surface 6300 positioned on the door bottom side, and the outdoor side finding portion 631 and the indoor side finding portion 632 facing inward.

[0029] A hollow folded-back edge 74 is formed at the door bottom side end of the main surface portion 70 of the first surface material 7, and the door bottom side portion of the main surface portion 70 of the first surface material 7 is adhered to the outdoor side finding portion 631 of the door bottom side vertical frame 63. The folded-back edge 74 of the first surface material 7 forms the door bottom side protruding portion 57 of the door body 5.

[0030] On the door-end side edge of the main surface portion 80 of the second surface member 8, a door-end side inclined edge 84 that is bent in an inclined shape in a plan view toward the outdoor side and the door-end side is integrally formed. At the tip of the door-end side inclined edge 84, a door-end side projected edge 85 is integrally formed. The door-end side portion of the main surface portion 80 of the second surface member 8 is adhered to the indoor side finding portion 632 of the door-end side vertical frame 63. The door-end side inclined edge 84 forms a triangular space in a plan view between the indoor side projected surface 6301 and the intermediate finding surface 6302 of the door-end side vertical frame 63, and the door-end side projected edge 85 is adhered to the outdoor side projected surface 6300. The door-end side inclined edge 84 of the second surface member 8 forms an inclined surface 58, and the door-end side projected edge 85 forms the door-end side projected surface 56 of the door body 5.

[0031] The door-end side protruding portion 57 is integrally formed by folding the first surface member 7 into a hollow shape. In the present embodiment, reinforcing members 64 are provided at the upper end portion and the lower end portion in the hollow portion of the door-end side protruding portion 57. The reinforcing member 64 has an L-shaped cross section including a finding piece 640 and a projected piece 641. The finding piece 640 is located inside the hollow portion, and the projected piece 641 is fixed with a screw S in a state of abutting against the outside of the door-end side projected edge 85 of the second surface member 8 that forms the door-end side projected surface 56 of the door body 5. When a predetermined strength can be ensured only by the hollow door-end side protruding portion 57, the reinforcing member 64 is an optional element.

[0032] The finding piece 640 of the reinforcing material 64 constitutes a reinforcing material for the hollow folded side 74 that forms the door end side protruding portion 57. The prospective piece 641 of the reinforcing material 64 is located outside the prospective side edge 85 of the door end side of the second surface material 8. The outdoor prospective surface 6300 (outdoor prospective piece) of the door end side vertical frame 63 abuts against the inner side of the prospective side edge 85 of the door end side of the second surface material 8, and the prospective side edge 85 of the second surface material 8 is sandwiched between the outdoor prospective surface 6300 (outdoor prospective piece) of the door end side vertical frame 63 and the prospective piece 641 of the reinforcing material 64 and is fixed with a screw S. In the present embodiment, the reinforcing material 64 is provided at the upper end portion and the lower end portion in the hollow portion of the door tip side protruding portion 57. However, at the portion where the reinforcing material 64 is not located, the prospective side edge 85 of the second surface material 8 is fixed to the outdoor prospective surface 6300 of the door end side vertical frame 63 with screws or rivets (not shown). Further, when the reinforcing material 64 extends in the height direction (not only the upper end portion and the lower end portion) of the hollow portion of the door tip side protruding portion 57, at the portion between the upper end portion and the lower end portion, the prospective piece 641 of the reinforcing material 64, the outdoor prospective surface 6300 of the door end side vertical frame 63, and the prospective side edge 85 of the second surface material 8 may be fixed with screws or rivets.

[0033] In the door tip side portion of the door body 5, the entire door tip side vertical frame 62 is located inside the surface materials (the first surface material 7, the second surface material 8). However, in the door end side portion of the door body 5, the portion (prospective piece 641) of the reinforcing material 64 is located outside the surface materials (the first surface material 7, the second surface material 8). That is, after assembling the door body 5 from the peripheral-shaped members (the upper frame 60, the lower frame 61, the door tip side vertical frame 62, the door end side vertical frame 63) and the surface materials (the first surface material 7, the second surface material 8), the finding piece 640 of the reinforcing material 64 is inserted into the hollow portion of the folded side 74, and the prospective piece 641 is brought into contact with the prospective side edge 85 of the door end side of the second surface material 8 and fixed with a screw S.

[0034] [A-3] Center suspension pivot hinge The butt side portion of the door body 5 is rotatably attached to the opening frame by the pivot hinge PH1 at the upper end and the pivot hinge PH2 at the lower end. The upper pivot hinge PH1 includes a shaft portion 520 protruding from the butt side portion of the upper end surface 52 of the door body 5, a support structure 521 attached to the upper end of the butt side portion of the door body 5 and supporting the shaft portion 520, and a receiving portion 110 (Figure 2) provided at the butt side portion of the lower surface 11 on the outdoor side of the upper frame 1 of the opening frame. The lower pivot hinge PH2 includes a shaft portion 410 protruding vertically from the upper surface 41 on the outdoor side of the lower frame 4 of the opening frame, a receiving portion 530 (Figure 8) provided at the butt side portion of the lower end surface 53 of the door body 5, and a support structure 531 attached to the lower end of the butt side portion of the door body 5 and supporting the receiving portion 530.

[0035] As shown in Figure 8, the support structure 521 includes a vertical surface portion 5210, an upper surface portion 5211, and a lower surface portion 5212, and the shaft portion 520 is supported by the upper surface portion 5211 and the lower surface portion 5212. The upper end portions of the indoor side prospective surface 6301 and the intermediate finding surface 6302 of the butt side vertical frame 63 are cut out corresponding to the support structure 521, and the support structure 521 supporting the shaft portion 520 is attached.

[0036] The upper surface portion 5211 of the support structure 521 is fixed to the upper end of the butt side portion of the door body 5 with a screw S1. A reinforcing plate 603 is fixed to the lower surface of the upper surface portion 600 of the upper frame 60 of the door body 5 at the butt side portion. The vertical surface portion 5210 of the support structure 521 is in contact with the inner surface of the upper end portion of the outdoor side prospective surface 6300 of the butt side vertical frame 63. A screw hole 5210S for the screw S is formed in the vertical surface portion 5210 of the support structure 521, and an insertion hole 6300S is formed in the outdoor side prospective surface 6300 of the butt side vertical frame 63 so as to coincide with the screw hole 5210S.

[0037] The projected piece 641 of the upper reinforcing member 64 is formed with an insertion hole for the screw S. When the projected piece 641 of the reinforcing member 64 is abutted against the projected edge 85 on the door end side of the second surface material 8, the insertion hole of the projected piece 641 and the insertion hole 6300S formed on the outdoor projected surface 6300 are aligned. The screw S for attaching the upper reinforcing member 64 to the door body 5 also serves as the screw for fixing the support structure 521 that supports the shaft portion 520 of the pivot hinge PH1 at the upper end to the door body 5.

[0038] As shown in FIG. 8, the support structure 531 includes a vertical surface portion 5310 and a lower surface portion 5311, and the receiving portion 530 is supported by the lower surface portion 5311. The lower end portions of the indoor projected surface 6301 and the intermediate finding surface 6302 of the door end side vertical frame 63 are notched corresponding to the support structure 531, and the support structure 531 is attached.

[0039] The lower surface portion 5311 of the support structure 531 is fixed to the lower end of the door end side portion of the door body 5 with the screw S2. A reinforcing plate 613 is fixed to the upper surface of the lower surface portion 610 of the lower frame 61 of the door body 5 at the door end side portion. The vertical surface portion 5310 of the support structure 531 abuts against the inner surface of the lower end portion of the outdoor projected surface 6300 of the door end side vertical frame 63. A screw hole 5310S for the screw S is formed in the vertical surface portion 5310 of the support structure 531, and an insertion hole 6300S is formed in the outdoor projected surface 6300 of the door end side vertical frame 63 so as to coincide with the screw hole 5310S.

[0040] The projected piece 641 of the lower reinforcing member 64 is formed with an insertion hole for the screw S. When the projected piece 641 of the reinforcing member 64 is abutted against the projected edge 85 on the door end side of the second surface material 8, the insertion hole of the projected piece 641 and the insertion hole 6300S formed on the outdoor projected surface 6300 are aligned. The screw S for attaching the lower reinforcing member 64 to the door body 5 also serves as the screw for fixing the support structure 531 of the pivot hinge PH2 at the lower end to the door body 5.

[0041] [A-4] Other Embodiments of the Door End Side Projection Portion of the Door Body The protruding portion 57 on the door bottom side of the door body 5 shown in FIGS. 5 and 6 is formed from the hollow folded side 74 of the first surface material 7. In this embodiment, it is reinforced by inserting the locating pieces 640 of the reinforcing material 64 into the upper end portion and the lower end portion of the hollow portion of the folded side 74. On the other hand, in the aspect shown in FIGS. 9 and 10, the protruding portion 57' on the door bottom side is formed from the edge material 65 extending over the entire height of the door body 5. The edge material 65 has a substantially L-shaped cross-section view from the locating piece 650 and the projecting piece 651, and a base end side projecting piece 652 projecting from the projecting piece 651 is integrally formed at the base end portion of the locating piece 650. In one aspect, the edge material 65 is formed from an aluminum profile.

[0042] As shown in FIG. 10, a bent side 74' is integrally formed at the door bottom side end of the main surface portion 70 of the first surface material 7, and the bent side 74' is in contact with and adhered to the outdoor side portion of the outdoor side expected surface 6300 of the door bottom side vertical frame 63. The door bottom side expected side 85 of the second surface material 8 is in contact with and adhered to the indoor side portion of the outdoor side expected surface 6300 of the door bottom side vertical frame 63. In the illustrated aspect, the door bottom side expected surface 56 of the door body 5 is formed from the bent side 74' of the first surface material 7 and the door bottom side expected side 85 of the second surface material 8. The projecting piece 651 of the edge material 65 is in contact with the door bottom side expected surface 56 of the door body 5, and the base end side projecting piece 652 of the edge material 65 is locked to the door bottom side end portion of the outdoor side locating surface 50 of the door body 5.

[0043] As shown in FIG. 9, the edge material 65 is fixed to the door bottom side expected surface 56 (the door bottom side expected side 85 of the second surface material 8, the outdoor side expected surface 6300 of the door bottom side vertical frame 63) of the door body 5 with screws S at the upper and lower end portions in the height direction. The screws S for fixing the edge material 65 to the door bottom side expected surface 56 of the door body 5 also serve as the screws for attaching the components of the upper pivot hinge PH1 and the components of the lower pivot hinge PH2 to the door body 5.

[0044] [B] Door bottom side finger pinching prevention structure As shown in Fig. 5, in the present embodiment, the gap between the tip of the butt-side protruding portion 57 of the door body 5 and the outdoor-side projected surface 31 of the butt-side vertical frame 3 is maintained at a dimension G within a predetermined reference value (for example, 7 mm or less) when the door body 5 is in the closed position and at least during a predetermined rotation from the open / closed position. In Fig. 5, the movement locus of the tip of the butt-side protruding portion 57 during the rotation of the door body 5 is shown by a two-dot chain line. The door body 5 according to the present embodiment is rotatably attached to the opening frame by center suspension pivot hinges (the upper pivot hinge PH1 and the lower pivot hinge PH2). The gap between the tip of the butt-side protruding portion 57 of the door body 5 and the outdoor-side projected surface 31 when the door body 5 is in the fully closed position narrows until the door body 5 rotates approximately 45° in the opening direction, and then expands until the door body 5 rotates approximately 90° to the fully open position. When the door body 5 approaches the fully open position, the gap between the tip of the butt-side protruding portion 57 and the outdoor-side projected surface 31 becomes larger than the reference value. At this time, the outdoor-side visible surface 50 of the door body 5 is in an inclined position and approaches the outdoor-side projected surface 31, and the gap is formed in the recessed part, so it is considered that the possibility of a finger getting in is extremely low. In addition, by extending the outdoor-side projected surface 31 of the butt-side vertical frame 3 to the outdoor side, a structure that makes it even more difficult for a finger to get in may be adopted.

[0045] In the present embodiment, a butt-side finger pinching prevention structure is formed by the butt-side protruding portion 57 formed at the butt-side portion of the door body 5, and the butt-side protruding portion 57 has a light-shielding function. The butt-side protruding portion 57 is flush with the outdoor-side visible surface 50 of the door body 5, the shape of the butt-side portion of the door body 5 becomes neat, and the design property is also good. In particular, since the door-tip-side protruding portion 55 is formed on the door-tip side of the door body 5 according to the present embodiment, the door body 5 as a whole has a neat appearance.

[0046] In the aspect shown in Fig. 6, the door end side vertical frame 3 is located between the outdoor side projected surface 31 and the intermediate locating surface 33 and has an inclined surface 310 in plan view. The gap between the tip of the door end side protruding portion 57 of the door body 5 and the inclined surface 310 of the door end side vertical frame 3 is maintained at a dimension G within a predetermined reference value when the door body 5 is opened and closed. More specifically, in Fig. 6, the movement locus of the tip of the door end side protruding portion 57 when the door body 5 rotates is shown by a two-dot chain line. In the aspect of Fig. 6, an inclined surface 310 is integrally formed on the indoor side of the outdoor side projected surface 31 of the door end side vertical frame 3. In the process of the door body 5 rotating from the fully closed position to approximately 45°, the outdoor side projected surface 31 is positioned opposite to the movement locus of the tip of the door end side protruding portion 57 of the door body 5. Further, in the process of rotating approximately 90° to the fully open position, the inclined surface 310 is positioned opposite to the movement locus of the tip of the door end side protruding portion 57 of the door body 5. When the door body 5 rotates between the fully closed position and the fully open position, the gap between the tip of the door end side protruding portion 57 of the door body 5 and the inclined surface 310 of the door end side vertical frame 3 is maintained at a dimension G within a predetermined reference value. Fig. 11 is a view showing another form of the inclination 310 of the door end side vertical frame 3. In Fig. 6, the inclined surface 310 is integrally formed on the door end side vertical frame 3. However, in the aspect shown in Fig. 11, the inclined surface 310' is formed from a member different from the member forming the door end side vertical frame 3. In Fig. 11(A), by providing a corner member 35 formed by bending a metal plate at the corner formed by the outdoor side projected surface 31 and the intermediate locating surface 33, the inclined surface 310' is formed from the surface portion of the corner member 35. In Fig. 11(B), by providing, for example, a block-shaped corner member 36 made of resin at the corner formed by the outdoor side projected surface 31 and the intermediate locating surface 33, the inclined surface 310' is formed from the surface portion of the corner member 36.

Explanation of Signs

[0047] 3 Door end side vertical frame 31 Outdoor side projected surface (projected surface) 310 Inclined surface in plan view 33 Intermediate locating surface (indoor side locating portion) 5 Door body 50 Outdoor side locating surface 51 Indoor side locating surface 54 Door tip side projected surface 55 Door tip side protruding portion 56 Butt side projected surface 57 Butt side protrusion 58 Inclined surface 62 Door tip side vertical frame (door tip side reinforcement) 620 Projection part (projection piece) 621 Outdoor side locating part (locating piece) 63 Butt side vertical frame 6300 Outdoor side projected surface (projection piece) 64 Reinforcement 640 Projection piece 641 Locating piece 7 First surface material 73 Folded edge (door tip side protrusion) 74 Folded edge (butt side protrusion) 8 Second surface material 83 Door tip side projected edge (door tip side projected surface) 85 Butt side projected edge (butt side projected surface) G Dimension within a predetermined reference value PH1, PH2 Central suspension pivot hinge S Screw

Claims

1. In a door comprising a door body rotatably attached to an opening frame by a central suspension pivot hinge, the vertical frame on the doorstop side of the opening frame includes a prospective surface and an indoor finding portion on the indoor side of the prospective surface, the doorstop side portion of the door body includes a doorstop side prospective surface and a protruding portion located on the outdoor side of the doorstop side prospective surface and extending substantially flush with the outdoor finding surface of the door body, the gap between the tip of the protruding portion of the door body and the prospective surface of the vertical frame on the doorstop side is maintained within a predetermined reference value during the closed position of the door body and at least during a predetermined rotation from the open / closed position, door.

2. The vertical frame on the doorstop side has an inclined surface in plan view located between the prospective surface and the indoor finding portion, the gap between the tip of the protruding portion of the door body and the inclined surface of the vertical frame on the doorstop side is maintained within a predetermined reference value during the opening and closing of the door body, The door according to claim 1.

3. The protruding portion is integrally formed by folding the surface material of the door body into a hollow shape, The door according to any one of claims 1 and 2.

4. Reinforcing members are provided at least at the upper end portion and the lower end portion in the hollow portion of the protruding portion, The door according to claim 3.

5. The reinforcing member has an L-shaped cross section view from the side, including a finding piece and a prospective piece, the finding piece is located inside the hollow portion, and the prospective piece is in contact with the outside of the portion of the surface material forming the doorstop side prospective surface of the door body, The door according to claim 4.

6. A doorstop side vertical frame extending in the height direction is built in the doorstop side portion of the door body, the prospective piece of the doorstop side vertical frame is in contact with the inside of the portion of the surface material, The prospective piece of the reinforcing member, the portion of the surface material, and the prospective piece of the doorstop side vertical frame are fixed by fastening means, The door according to claim 5.

7. The components of the central suspension pivot hinge are fixed to the prospective pieces of the door body and the vertical frame on the doorstop side by the fastening means, The door according to claim 6.

8. The door tip side portion of the door body includes a door tip side prospective surface and a door tip side protruding portion located on the outdoor side of the door tip side prospective surface and extending flush with the outdoor finding surface of the door body, The door tip side protruding portion is integrally formed by folding the surface material of the door body into a hollow shape, The door according to claim 3.

9. In the hollow portion of the protruding portion, at least reinforcing members are provided at the upper end portion and the lower end portion. In the hollow portion of the protruding portion on the door tip side, a door tip side reinforcing member is provided over the height direction. The door tip side reinforcing member includes a finding piece and an expecting piece. The finding piece is located within the hollow portion of the protruding portion on the door tip side, and the expecting piece is located inside a portion of the surface material that forms the door tip side expecting surface of the door body. The door according to claim 8.