Door body

The door body design addresses the aesthetic issues of conventional door bodies by using a cover member to cover the edges of cutout and groove portions, enhancing design and safety.

JP2025127133APending Publication Date: 2025-09-01YKK AP INC
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Patent Information

Application Number
JP2024023669
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-20
Publication Date
2025-09-01

AI Technical Summary

Technical Problem

Conventional door bodies with flat cover members expose gaps and edges, impairing design aesthetics due to the exposure of the rib and cut edge of the surface material.

Method used

A door body design featuring a frame with aggregates and a surface material with cutout and groove portions, covered by a cover member with a fixing portion and step portion that overlaps and covers the edges, preventing exposure.

Benefits of technology

The design effectively covers the edges of cutout and groove portions, enhancing aesthetics and preventing user contact, resulting in an improved appearance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a door body with aesthetic appearance.SOLUTION: A door body includes: a frame body formed by a plurality of aggregates; and a surface material having a covering surface portion that covers the frame body from the out-of-plane direction and a projection surface portion in which the peripheral edge of the covering surface portion is bent to face the aggregates, the surface material having a cutout portion in the projection surface portion and a groove portion that is recessed in the covering surface portion in the projection direction and connects to the cutout portion. The door body includes a cover member having: a fixing portion that overlaps and is fixed to the projection surface portion; and a step portion that has a step connected to the fixing portion, is positioned in the cutout portion, and covers the edges of the cutout portion and the groove portion.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a door body. [Background technology]

[0002] Conventionally, a door body has been known that has four ribs (ribs) arranged around the periphery and a surface material covering the ribs, with the peripheral edge of the surface material having a bent portion bent so that it faces the ribs in an in-plane direction, and a groove formed by bending on the surface of the surface material facing the outdoors so that it reaches the periphery of the door body. When the groove is formed so that it reaches the periphery of the door body as in this type of door body, a notch necessary for the bending process must be formed in the bent portion of the surface material at the portion corresponding to the groove, and the edge of the cut portion of the surface material is exposed. For this reason, a flat cover member is attached to cover the portion where a bent portion cannot be formed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-157480 Summary of the Invention [Problem to be solved by the invention]

[0004] However, because the cover member attached to the conventional door body is flat, for example, when the cover member is attached to the bent portion so as to cover the cutout portion, a gap occurs between the rib and the cover material at the cutout portion. Therefore, even if the cutout portion is covered, there is a gap between the rib and the cover material, and the edge of the cover member and the cut edge of the surface material are exposed through the gap, resulting in a problem of impairing the design. The present invention has been made in view of the above problems, and an object of the present invention is to provide a door body with excellent design. [Means for solving the problem]

[0005] In order to achieve this object, the door body of the present invention is a door body comprising a frame body formed by a plurality of aggregates, and a surface material having a covering surface portion that covers the frame body from the out-of-plane direction, and a projecting surface portion whose peripheral edge is bent to face the aggregates, wherein the surface material has a cutout portion in the projecting surface portion and a groove portion that is recessed in the covering surface portion in the projecting direction and connects to the cutout portion, and is characterized by having a cover member having a fixing portion that overlaps and is fixed to the projecting surface portion, and a step portion that has a step connected to the fixing portion, is positioned in the cutout portion, and covers the edges of the cutout portion and the groove portion. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0006] According to the present invention, a door body with excellent design can be provided. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a front view of the door according to the present embodiment, seen from the outdoor side. [Figure 2] FIG. 2(a) is a vertical cross-sectional view taken at a position other than the groove of the door, and FIG. 2(b) is a vertical cross-sectional view taken at the position of the groove of the door. [Figure 3] FIG. 10 is a perspective view showing the upper end portion of the door with the cover member removed. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] 1 is a perspective view showing the upper end of the door with the cover member removed, the cover plate portion of which is provided on the outdoor side. FIG. [Figure 7] FIG. 10 is a perspective view showing a cover member in which a cover plate portion is provided on the outdoor side. [Figure 8] 10A and 10B are diagrams illustrating a cover member in which the second plate portion is inclined. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of a door body according to the present invention will be described with reference to the drawings. In this embodiment, a door will be described as an example of a door body that can be freely opened and closed at an entrance or exit of a building.

[0009] As shown in Figure 1, door 1 has multiple decorative grooves 1a that run vertically on the outdoor surface. The grooves 1a are recessed from the outdoor side toward the indoor side, and are provided continuously in a long, narrow shape from the top end to the bottom end, with multiple grooves provided at intervals from each other in the left-right direction.

[0010] In the following explanation, the direction that is up and down when viewing the door 1 from the outside is referred to as the up and down direction, the direction that is left and right is referred to as the left and right direction, and the depth direction that is the indoor / outdoor direction is referred to as the front direction. Even when each part of the door 1 or each component that makes up the door 1 is in a separate state, the directions will be specified and explained in terms of the up and down direction, left and right direction, and front direction in the installed state.

[0011] The door 1 is a vertically long rectangular door, and as shown in Figures 1 and 2, it is a so-called flush door, comprising a core material 2, a frame 3, a surface material 4, and a cover member 5, with the surface material 4 covering the indoor and outdoor sides of the core material 2 surrounded by the frame 3.

[0012] The core material 2 is, for example, a synthetic resin heat insulating material molded into a predetermined shape, and is in the form of a rectangular panel. The frame body 3 includes an upper aggregate 31 and a lower aggregate 32 arranged above and below the core material 2, respectively, and a pair of vertical aggregates (not shown) arranged on the left and right sides of the core material 2, and is framed around all four sides in a rectangular shape. The upper aggregate 31, the lower aggregate 32, and the vertical aggregates are all extruded shapes with the longitudinal direction as the extrusion direction.

[0013] The surface material 4 comprises an outdoor surface material 40 provided on the outdoor side of the door 1 and an indoor surface material 41 provided on the indoor side of the door 1, each of which is a thin plate-like member formed from a metal such as a steel plate. The outer peripheral edges of the outdoor surface material 40 and the indoor surface material 41 are bent to face each other.

[0014] The outdoor surface material 40 has an outdoor side surface portion 40a as a covering surface forming a plane facing the outdoors, an upper outdoor prospective surface portion 40b facing the upper aggregate 31 in the vertical direction, a lower outdoor prospective surface portion 40c facing the lower aggregate 32 in the vertical direction, and a horizontal outdoor prospective surface portion (not shown) facing the vertical aggregate in the left-right direction. The indoor surface material 41 has an indoor side surface portion 41a forming a plane facing the indoors, an upper indoor prospective surface portion 41b facing the upper aggregate 31 in the vertical direction, a lower indoor prospective surface portion 41c facing the lower aggregate 32 in the vertical direction, and a horizontal indoor prospective surface portion (not shown) facing the vertical aggregate in the left-right direction.

[0015] A pair of groove walls 40d and groove bottoms 40e that form the bottoms of the grooves 1a, which form each groove 1a provided on the outdoor side surface 40a of the outdoor surface material 40, are formed by bending the outdoor surface material 40. The groove walls 40d and groove bottoms 40e are formed so that their upper ends are positioned approximately in the same position as the outer peripheral surface of the upper frame 31, and their lower ends are positioned in the same position as the outer peripheral surface of the lower frame 32.

[0016] As shown in Figure 3, the upper exterior projection surface 40b and the lower exterior projection surface 40c have cutouts 40f formed by cutting out portions of the upper exterior projection surface 40b and the lower exterior projection surface 40c in the left-right direction near the positions where the groove wall 40d and groove bottom 40e are provided. The cutouts 40f are formed by cutting out the upper exterior projection surface 40b and the lower exterior projection surface 40c to a width wider than the left-right width of the groove 1a, and the outdoor side surface 40a is also slightly cut out by the same width so that it connects to the groove wall 40d and groove bottom 40e. Note that Figure 3 shows the upper end side of the door 1, but the lower end side is configured in the same way.

[0017] As shown in Figure 2, the upper aggregate 31 has an upper surface portion 31a, an upper outdoor side surface portion 31b, an upper indoor side surface portion 31c, and an upper outdoor protrusion portion 31d and an upper indoor protrusion portion 31e. The upper outdoor side surface portion 31b and the upper indoor side surface portion 31c extend downward from both ends of the upper surface portion 31a in the projection direction. The upper outdoor protrusion portion 31d protrudes downward from the upper surface portion 31a and is provided at a distance on the indoor side of the upper outdoor side surface portion 31b, and the upper indoor protrusion portion 31e protrudes downward from the upper surface portion 31a and is provided at a distance on the outdoor side of the upper indoor side surface portion 31c.

[0018] The lower aggregate 32 is the same material as the upper aggregate 31, but used upside down, and has a lower surface portion 32a, a lower outdoor side surface portion 32b, a lower indoor side surface portion 32c, and a lower outdoor protrusion portion 32d and a lower indoor protrusion portion 32e. The lower outdoor side surface portion 32b and the lower indoor side surface portion 32c extend upward from both ends of the lower surface portion 32a in the projection direction. The lower outdoor protrusion portion 32d protrudes upward from the lower surface portion 32a and is provided at a distance on the indoor side of the lower outdoor side surface portion 32b, and the lower indoor protrusion portion 32e protrudes upward from the lower surface portion 32a and is provided at a distance on the outdoor side of the lower indoor side surface portion 32c.

[0019] 3, the upper aggregate 31 and the lower aggregate 32 have cutout portions 31f that are cut out to avoid interference with the groove 1a at the locations where the groove 1a will be placed when the exterior surface material 40 is attached. Each cutout portion 31f is slightly wider than the width of the groove 1a in the left-right direction, and the portion on the outdoor side of the upper exterior protrusion 31d or the lower exterior protrusion 32d is cut out.

[0020] When the outdoor surface material 40 is attached to the frame 3, the groove 1a is disposed within the cut-out portion 31f of the upper aggregate 31 and the lower aggregate 32, and the indoor-side portion of the groove 1a faces closely to the upper outdoor protrusion 31d and the lower outdoor protrusion 32d. In addition, the core material 2 disposed between the upper aggregate 31 and the lower aggregate 32 also has the portion corresponding to the groove 1a cut out in the same manner as the upper aggregate 31 and the lower aggregate 32.

[0021] The outdoor surface material 40 provided with the groove 1a has groove walls 40d, groove bottoms 40e, and cutouts 40f exposed at the top and bottom ends, and the cutouts 40f expose the removed portions 31f of the upper and lower frames 31 and 32. This not only makes the top surface of the door 1 look unattractive, but also poses a risk of contact with the user. Therefore, as shown in Figure 4, the door 1 is provided with cover members 5 that cover the top and bottom ends. Note that while Figure 4 shows the top end of the door 1, the bottom end is configured in the same way.

[0022] As shown in Figures 3 and 5, the cover member 5 has a cover plate portion 5a that is arranged in the cutout portion 40f and the cutout portion 31f and faces the core material 2, and fixing portions 5b that are provided on both left and right sides of the cover plate portion 5a. The cover plate portion 5a has a width slightly narrower than the left and right width of the cutout portion 40f and is arranged between the edges of the upper exterior facing surface portion 40b or the lower exterior facing surface portion 40c that are located on both sides of the cutout portion 40f. The fixing portions 5b are connected to both left and right edges of the cover plate portion 5a and are overlapped and fixed so as to face the upper exterior facing surface portion 40b or the lower exterior facing surface portion 40c.

[0023] The cover members 5 are provided corresponding to each cutout portion 40f. The cover member 5 is formed from a single flat plate material, and the cover plate portion 5a is bent in a step so that it is slightly recessed from the fixed portion 5b. When the fixed portion 5b is placed on the upper exterior surface portion 40b or the lower exterior surface portion 40c, it is positioned between the edges of the upper exterior surface portion 40b or the lower exterior surface portion 40c located on both sides of the cutout portion 40f. Here, the cover plate portion 5a corresponds to the step portion.

[0024] The fixing portion 5b of the cover member 5 and the upper exterior facing surface portion 40b and lower exterior facing surface portion 40c of the outdoor facing material 40 are each provided with insertion holes 5c, 40g through which rivets 6 are inserted as fixing devices at positions that overlap when the cover plate portion 5a is placed in the cutout portion 40f. The cover member 5 is then fixed to the upper exterior facing surface portion 40b or the lower exterior facing surface portion 40c by the rivets 6 inserted into the insertion holes 5c, 40g. Note that the fixing devices are not limited to rivets 6, and any member such as a screw can be used as long as it can join the upper exterior facing surface portion 40b and the lower exterior facing surface portion 40c to the fixing portion 5b in an overlapping manner.

[0025] The cover plate 5a has a protruding portion 5d that protrudes slightly toward the outdoor side beyond the fixed portion 5b. When the cover member 5 is attached, the cover plate 5a covers the outdoor-side surface 40a, the groove wall 40d, and the upper edge of the groove bottom 40e in the cutout portion 40f, and the outdoor edge of the fixed portion 5b is located slightly indoors beyond the outdoor surface of the outdoor-side surface 40a.

[0026] According to the door 1 of this embodiment, the cover plate portion 5a is positioned in the cutout portion 40f, so that the cutout portion 40f of the outdoor surface material 40, the edges of the groove wall portion 40d and the groove bottom portion 40e, and the cut-out portions 31f of the upper aggregate 31 and the lower aggregate 32 are covered by the cover member 5 and are hardly exposed to the outside.

[0027] Furthermore, the cover member 5 has a fixing portion 5b that connects to the cover plate portion 5a in the left-right direction, thereby covering the edges of the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c located on both sides of the cutout portion 40f. Therefore, the edges of the outdoor side surface portion 40a, the cutout portion 40f, the cutout portion 31f, the groove wall portion 40d, and the groove bottom portion 40e are almost not exposed to the outside, resulting in excellent design. It also makes it possible to prevent users from coming into contact with the edges of the outdoor side surface portion 40a, the cutout portion 40f, the cutout portion 31f, the groove wall portion 40d, and the groove bottom portion 40e.

[0028] Furthermore, the cover member 5 does not have a portion that faces the exterior side surface portion 40a in the front direction, and therefore has an excellent design in that the entire exterior side surface portion 40a is exposed to the outdoors.

[0029] In the above embodiment, an example has been described in which the cover plate 5a and the left and right fixing portions are aligned in the left-right direction and the cover plate 5a is provided across the entire width of the cover member 5 in the projection direction, but this is not limited to this. For example, as shown in Figures 6 and 7, the cover member 50 may have a first plate 50a arranged on the outdoor side surface portion 40a, i.e., the outdoor side, and a second plate 50b arranged on the indoor side of the first plate 50a, and a cover plate 50c as a step portion is provided on the first plate 50a. In the following description, the same components as those in the above embodiment are denoted by the same reference numerals in the figures, and their description will be omitted.

[0030] The first plate portion 50a has, on the outdoor side and in the center in the left-right direction, a cover plate portion 50c that is arranged in the outdoor-side part of the cutout portion 40f and faces the core material 2, and fixing portions 50d that are provided on both sides in the left-right direction of the cover plate portion 50c. The cover plate portions 50c are arranged in cutout portions 31g that are formed by cutting out the outdoor side portions of the upper and lower aggregates 31 and 32 that are exposed from the cutout portion 40f.

[0031] The left and right fixing portions 50d are connected on the indoor side of the cover plate portion 50c. Therefore, the width of the cover plate portion 50c in the front direction is formed narrower than the width of the first plate portion 50a in the front direction.

[0032] The cover plate portion 50c has a width slightly narrower than the left-right width of the cutout portion 40f, and is positioned between the edges of the upper exterior visible surface portion 40b or the lower exterior visible surface portion 40c located on both sides of the cutout portion 40f, and between the upper aggregate 31 or the lower aggregate 32 located on both sides of the cutout portion 31g in the left-right direction.

[0033] Cover members 50 are also provided corresponding to each cutout portion 40f. The cover member 50 is formed from a single flat plate material and is drawn so that the cover plate portion 50c is slightly recessed from the fixing portion 50d, and the second plate portion 50b is inclined toward the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c from the first plate portion 50a toward the indoor side, as shown in Figure 8. In other words, the second plate portion 50b is inclined toward the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c while moving away from the first plate portion 50a.

[0034] The cover member 50 has the fixing portion 50d fixed to the upper exterior projection surface 40b or the lower exterior projection surface 40c by the rivets 6 inserted through the insertion holes 50e, 40g, and the cover plate portion 50c protrudes slightly outside beyond the fixing portion 50d. Therefore, when the cover member 50 is attached, the groove wall portions 40d, groove bottom portions 40e, and cutout portions 40f of the outdoor surface material 40, and the cutout portions 31g of the upper aggregate 31 and lower aggregate 32 are covered by the cover member 50 and are hardly exposed to the outside.

[0035] Furthermore, because the second plate portion 50b is inclined, when the fixing portion 50d is fixed by the rivet 6, the second plate portion 50b is bent in a direction that makes the inclination gentler, and a force is applied so that the fixing portion 50d and the second plate portion 50b become substantially flat. Then, the tip of the second plate portion 50b is pressed more strongly against the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c, making it possible to prevent the indoor-side end of the second plate portion 50b from lifting up.

[0036] In the above embodiment, the groove 1a is provided in the vertical direction, but this is not limiting. For example, the groove may be provided in the horizontal direction, or may be inclined or curved, as long as it extends to the periphery of the door. Furthermore, in the above embodiment, the door 1 has been described as an example of the door body, but the door body may be a sliding door.

[0037] The above-described embodiments are provided to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention includes equivalents thereof. The present embodiment includes at least the following inventions.

[0038] Aspect 1: A door body comprising a frame body formed by a plurality of aggregates, and a surface material having a covering surface portion that covers the frame body from the out-of-plane direction, and a visible surface portion in which the peripheral edge of the covering surface portion is folded to face the aggregates, wherein the surface material has a cutout portion in the visible surface portion and a groove portion that is recessed in the covering surface portion in the visible direction and connected to the cutout portion, and the door body is characterized in that it has a cover member having a fixing portion that overlaps and is fixed to the visible surface portion, and a step portion that has a step connected to the fixing portion, is positioned in the cutout portion, and covers the edge of the cutout and the groove portion.

[0039] According to the door body of the first aspect, the cover member having a step portion connected to the fixing portion covers the edges of the cutout and groove of the surface material when the fixing portion is fixed to the visible surface portion and the step portion is placed in the cutout. Therefore, by attaching the cover member, the edges of the cutout and groove are less likely to be exposed to the outside, resulting in excellent design.

[0040] Aspect 2: The door body according to Aspect 1, wherein the cover member has a first plate portion disposed on the cover surface side and a second plate portion disposed on the opposite side from the cover surface, The first plate portion has the step portion and the fixing portion fixed by a fixing tool, The second plate portion is characterized in that it is inclined toward the visible surface portion while moving away from the first plate portion.

[0041] According to the door body of the second aspect, since the first plate portion is inclined toward the projected surface portion while moving away from the first plate portion, when the first plate portion is fixed by the fixing device, the second plate portion is bent in a direction that makes the inclination gentler, and a force is applied so that the first plate portion and the second plate portion become almost flat. Therefore, the tip of the second plate portion is pressed more strongly against the projected surface portion, and it is possible to prevent the edge of the second plate portion from lifting up.

[0042] Aspect 3: The door body according to Aspect 1 or Aspect 2, wherein the frame has a cutout portion where the step portion is disposed at a position that overlaps with the cutout portion.

[0043] According to the door body of aspect 3, the step portion is positioned in the cut-out portion of the aggregate that is located at a position that overlaps with the cut-out portion, so that the step portion can more reliably cover the cut-out portion and the cut-out portion, resulting in a more aesthetically pleasing design. [Explanation of symbols]

[0044] 1 door (door body), 1a groove portion, 3 frame body, 4 surface material, 5 cover member, 5a Cover plate portion (step portion), 5b Fixing portion, 6 Rivet (fixing device), 31 upper aggregate (aggregate), 31f excised portion, 32 lower aggregate (aggregate), 40 Outdoor side surface material (surface material), 40a Outdoor side surface section (cover surface section), 40b Upper outdoor prospective surface section (expected surface section), 40c Lower outdoor prospective surface section (expected surface section), 40f: notch portion; 50: cover member; 50a: first plate portion; 50b: second plate portion; 50c cover plate portion, 50d fixing portion,

Claims

1. a frame body in which a plurality of aggregates are framed; A door body comprising a surface material having a covering surface portion that covers the frame body from the outward direction of the surface, and a projecting surface portion in which the peripheral edge of the covering surface portion is bent and faces the aggregate, The surface material has a notch portion in the prospective surface portion, A groove portion recessed in the cover surface portion in a prospective direction and connected to the cutout portion, A door body characterized by having a cover member having a fixed portion that overlaps and is fixed to the visible surface portion, and a step portion that has a step connected to the fixed portion and is positioned in the cutout portion to cover the edge of the cutout portion and the groove portion.

2. The door body according to claim 1, The cover member has a first plate portion disposed on the covering surface portion side and a second plate portion disposed on the opposite side to the covering surface portion, The first plate portion has the step portion and the fixing portion fixed by a fixing tool, A door body characterized in that the second plate portion is inclined toward the visible surface portion while moving away from the first plate portion.

3. The door body according to claim 1 or 2, The door body is characterized in that the frame has a cutout portion in which the step portion is positioned at a position that overlaps with the cutout portion.

Citation Information

Patent Citations

  • Door

    JP2019157480A