Door body
The door body design addresses the aesthetic and safety issues of conventional designs by using a cover member to conceal edges and grooves, improving both appearance and functionality.
Patent Information
- Application Number
- JP2024020406
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-14
- Publication Date
- 2025-08-26
AI Technical Summary
Conventional door bodies with exposed edges of cover members and cut edges of surface materials impair the design aesthetics and pose a risk of user contact.
A door body design featuring a frame with aggregates, a surface material with cutout portions and groove portions, and a cover member with a fixing portion and surface-facing portion that covers and fixes to the cutout, hiding the edges and grooves from view.
The design effectively conceals the exposed edges and grooves, enhancing aesthetics and preventing user contact while allowing for efficient water drainage.
Smart Images

Figure 2025124392000001_ABST
Abstract
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 that covers 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 (see, for example, Patent Document 1). When a 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 made in the bent portion of the surface material at the part that corresponds to the groove, and the edge of the cut part of the surface material is exposed. For this reason, a flat cover member is attached to cover the part where a bent portion cannot be made. [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, even if it covers the part without the bent portion, the edge of the cover member and part of the cut edge of the surface material are exposed when viewed from the outside, which causes a problem of impairing the design.
[0005] 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]
[0006] 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, a covering surface portion that covers the frame body from the out-of-plane direction, and a surface material having a projecting surface portion in which the peripheral edge of the covering surface portion is folded and faces the aggregates, wherein the surface material has a cutout portion where the projecting surface portion is cut out, and a groove portion that is provided in the covering surface portion and is recessed in the projecting direction and connected to the cutout portion, and is characterized by having a cover member having a fixing portion that covers and is fixed to the cutout portion, and a surface facing portion that is connected to the fixing portion and faces the covering surface portion in the projecting direction. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]
[0007] According to the present invention, a door body with excellent design can be provided. [Brief explanation of the drawings]
[0008] [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. 2 is a perspective view showing the upper and lower ends of the door. [Figure 5] FIG. 3 is an enlarged view of part A in FIG. 2. [Figure 6] FIG. 3 is an enlarged view of part B in FIG. [Figure 7] FIG. 10 is a perspective view showing a drain hole provided in a cover member attached to the lower end. [Figure 8] 10A and 10B are diagrams illustrating a cover member having a fixing portion with an inclined portion. [Figure 9] FIG. 10 is a perspective view illustrating a cover member having an extension portion. [Figure 10]FIG. 10 is a perspective view showing a cover member having a surface-facing portion that is aligned with a groove portion. DETAILED DESCRIPTION OF THE INVENTION
[0009] 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.
[0010] 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.
[0011] In the following explanation, the direction that is up and down when looking at the door 1 from the indoor side 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 and 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.
[0012] The door 1 is a vertically long rectangular door, and as shown in Figure 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.
[0013] 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.
[0014] 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.
[0015] The outdoor surface material 40 has an outdoor side surface portion 40a that has a flat surface facing the outdoors and serves as a covering surface that covers the frame body 3 from the outdoors side, an upper outdoor prospective surface portion 40b that faces the upper aggregate 31 in the vertical direction, a lower outdoor prospective surface portion 40c that faces the lower aggregate 32 in the vertical direction, and a horizontal outdoor prospective surface portion (not shown) that faces the vertical aggregate in the left-right direction. The indoor surface material 41 has an indoor side surface portion 41a that forms a flat surface facing the indoors, an upper interior up-inner surface portion 41b that faces the upper aggregate 31 in the vertical direction, a lower interior prospective surface portion 41c that faces the lower aggregate 32 in the vertical direction, and a horizontal interior prospective surface portion (not shown) that faces the vertical aggregate in the left-right direction.
[0016] 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.
[0017] 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 the vicinity of the positions where the groove wall 40d and groove bottom 40e are provided in the left-right direction. 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 to 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.
[0018] 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.
[0019] 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.
[0020] 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.
[0021] 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 way as the upper aggregate 31 and the lower aggregate 32.
[0022] 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, 32. This not only makes the top surface of the door 1 look unattractive, but also poses a risk of contact by users. Therefore, the door 1 is provided with cover members 5 that cover the top and bottom ends, as shown in Figure 4.
[0023] 3 and 4, the cover member 5 has a fixing portion 5a that is overlapped so as to face the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c and fixed to the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c, and a surface-facing portion 5b that extends at a substantially right angle from the outdoor-side end of the fixing portion 5a. Both the fixing portion 5a and the surface-facing portion 5b are flat and have an L-shaped cross section.
[0024] The cover member 5 has a length that extends almost the entire length of the upper or lower end of the door 1. The fixing portion 5a of the cover member 5 and the upper exterior facing surface 40b and lower exterior facing surface 40c of the outdoor facing surface 40 are provided with insertion holes 5c and 40g, through which fasteners such as rivets 6 are inserted, at multiple overlapping positions when the fixing portion 5a is positioned opposite the upper exterior facing surface 40b or lower exterior facing surface 40c. The cover member 5 is then fixed to the upper exterior facing surface 40b or lower exterior facing surface 40c by the rivets 6 inserted through the insertion holes 5c and 40g. The fasteners are not limited to rivets 6; any other fasteners, such as screws, can be used as long as they can join the upper exterior facing surface 40b and lower exterior facing surface 40c to the fixing portion 5a.
[0025] When the cover member 5 is disposed at the upper end of the door 1, the surface-facing portion 5b is positioned below the fixed portion 5a and abuts or faces closely to the exterior-side surface portion 40a in the projection direction. When the cover member 5 is disposed at the lower end, the surface-facing portion 5b is positioned above the fixed portion 5a and abuts or faces closely to the exterior-side surface portion 40a in the projection direction. As shown in FIG. 5, the lower end of the surface-facing portion 5b of the upper cover member 5 is positioned below the upper ends of the groove wall portion 40d and the groove bottom portion 40e. As shown in FIG. 6, the upper end of the surface-facing portion 5b of the lower cover member 5 is positioned above the lower ends of the groove wall portion 40d and the groove bottom portion 40e. Therefore, when the cover member 5 is attached, the groove wall portion 40d, the groove bottom portion 40e, and the cutout portion 40f of the exterior-side surface member 40 and the cutout portion 31f of the upper aggregate 31 and the lower aggregate 32 are covered by the cover member 5 and are not exposed to the outside.
[0026] The cover member 5 is provided so as to extend over each of the cutouts 40f in the left-right direction, and in the cutouts 40f, a gap S is formed between the upper surface 31a of the upper aggregate 31 or the lower surface 32a of the lower aggregate 32 and the fixing portion 5a of the cover member 5. This gap S communicates with the inside of the groove 1a provided in the outdoor surface material 40.
[0027] According to the door 1 of this embodiment, the cover member 5, to which the fixed portion 5a is fixed by covering the cutout portion 40f, has a surface-facing portion 5b that is connected to the fixed portion 5a and faces the exterior-side surface member 40 in the forward direction. Therefore, when the cover member 5 is attached, the cutout portion 40f of the exterior-side surface member 40 and the edges of the groove wall portion 40d and groove bottom portion 40e that are connected to the cutout portion 40f and form the groove portion 1a are covered. Therefore, the edges of the cutout portion 40f, groove wall portion 40d, and groove bottom portion 40e are not exposed to the outside, resulting in excellent design. It is also possible to prevent users from coming into contact with the edges of the cutout portion 40f, groove wall portion 40d, and groove bottom portion 40e.
[0028] Furthermore, since the surface facing portion 5b abuts or is close to the outdoor surface material 40, the surface facing portion 5b does not significantly protrude outside beyond the outdoor surface material 40, and the shadow of the surface facing portion 5b is not cast on the outdoor surface material 40, resulting in a more aesthetically pleasing design.
[0029] In addition, since the gap S between the part of the fixing portion 5a of the cover member 5 covering the cutout portion 40f and the upper surface portion 31a of the upper frame 31 or the lower surface portion 32a of the lower frame 32 is connected to the inside of the groove portion 1a, at the lower end side of the door 1, rainwater and the like that enters the groove portion 1a can flow downward to the gap S and then run along the fixing portion 5a of the cover member 5 to be discharged to the outside.
[0030] In addition, the cover member 5 provided at the lower end of the door 1 may be provided with a drainage hole 5d, which is a through-hole that penetrates in the vertical direction, at a position that covers the cutout portion 40f of the fixing portion 5a and faces the gap S, as shown in Figure 7.
[0031] In the above embodiment, the fixing portion 5a of the cover member 5 is described as being flat and plate-shaped, but this is not limiting. For example, as shown in FIG. 8, the indoor-side portion of the fixing portion 5a may be inclined toward the indoor side, toward the side where the surface-facing portion 5b extends. More specifically, the fixing portion 5a has a first plate portion 5e located on the surface-facing portion 5b side, i.e., the outdoor side, in the projection direction, and a second plate portion 5f located on the opposite side of the surface-facing portion 5b, i.e., the indoor side. The first plate portion 5e is approximately perpendicular to the surface-facing portion 5b, and the second plate portion 5f is inclined away from the first plate portion 5e and toward the upper exterior-facing surface portion 40b or the lower exterior-facing surface portion 40c.
[0032] In this way, when the second plate portion 5f of the fixing portion 5a is inclined, the second plate portion 5f is bent in a direction that makes the inclination gentler when the first plate portion 5e is fixed by the rivet 6, and a force is applied so that the first plate portion 5e and the second plate portion 5f become almost flat. Then, the tip of the second plate portion 5f is pressed more strongly against the upper exterior visible surface portion 40b or the lower exterior visible surface portion 40c, making it possible to prevent the indoor end of the second plate portion 5f from lifting up.
[0033] Furthermore, in the above embodiment, an example was described in which the cover member 5 provided on the lower end side of the door 1 is formed of a fixed portion 5a and a surface-facing portion 5b. However, this is not limiting. For example, as shown in FIG. 9, an extension piece 5g may be provided that extends from the upper end of the surface-facing portion 5b into the groove portion 1a. The extension piece 5g is provided at an angle so that its height increases in the direction of extension from the surface-facing portion 5b. Furthermore, the peripheral portion of the extension piece 5g is formed so as to abut or be close to the groove wall portion 40d and groove bottom portion 40e that form the groove portion 1a in the outdoor surface material 40. In this case, rainwater, dust, etc. that enter the groove portion 1a and move downward can be discharged to the outdoors by the extension portion 5g.
[0034] Furthermore, in the above embodiment, an example was described in which the surface-facing portion 5b is linear in the left-right direction, but this is not limiting. For example, as shown in Fig. 10, the surface-facing portion 5b may be bent along the groove portion 1a. In this case, since the surface-facing portion 5b is provided along the groove portion 1a, the portion of the surface-facing portion 5b facing the groove portion 1a is also closer to the groove wall portion 40d and the groove bottom portion 40e. Therefore, even in the groove portion 1a, the shadow of the surface-facing portion 5b is not cast on the outdoor surface material 40, making it possible to provide a door 1 with even better design.
[0035] In the above embodiment, an example has been described in which the cover member 5 has a length that covers almost the entire length of the upper end or lower end of the door 1, but this is not limited to this. For example, a configuration may be adopted in which a cover member that covers the notch 40f is provided at the position of each groove 1a.
[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.
[0038] The present embodiment includes at least the following inventions. Aspect 1: A door body comprising a frame body formed by a plurality of aggregates, a covering surface portion that covers the frame body from the out-of-plane direction, and a surface material having a projecting surface portion in which the peripheral edge of the covering surface portion is folded and faces the aggregates, wherein the surface material has a cutout portion where the projecting surface portion is cut out, and a groove portion that is provided in the covering surface portion and is recessed in the projecting direction and connected to the cutout portion, and the door body is characterized in having a cover member that has a fixing portion that covers and is fixed to the cutout portion, and a surface facing portion that is connected to the fixing portion and faces the covering surface portion in the projecting direction.
[0039] According to the door body of the first aspect, the cover member, to which the fixing part is fixed by covering the cutout part, has a surface-facing part that is connected to the fixing part and faces the surface material in the forward direction, so that when the cover member is attached, the cutout part of the surface material and the edge of the groove part that is connected to the cutout part are covered. Therefore, the edge of the cutout part and the edge of the groove part are not exposed to the outside, resulting in excellent design.
[0040] Aspect 2: A door body as described in Aspect 1, characterized in that the fixing portion has a first plate portion located on the surface facing portion side in the projection direction and a second plate portion provided on the opposite side of the surface facing portion, the first plate portion being fixed to the projection plate portion by a fixing device, and the second plate portion being inclined toward the projection surface portion side while moving away from the first plate portion.
[0041] According to the door body of the second aspect, the second plate portion is inclined toward the projected surface portion while moving away from the first plate portion, so that 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, making it 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 surface facing portion abuts against the surface material.
[0043] According to the door body of aspect 3, the surface facing portion abuts against the surface material, so the surface facing portion does not protrude significantly beyond the surface material, and the shadow of the surface facing portion is not cast on the surface material, resulting in superior design.
[0044] Aspect 4: A door body according to any one of Aspects 1 to 3, characterized in that a gap is formed between the part of the fixing part that covers the cutout portion and the aggregate, and the gap is connected to the inside of the groove portion.
[0045] According to the door body of the fourth aspect, the gap between the part of the fixing part covering the cutout and the aggregate is connected to the inside of the groove, so when the cover member is attached to the lower end of the door body, rainwater etc. that has entered the groove flows downward and reaches the gap. Then, the rainwater etc. that has reached the gap can be discharged to the outside along the fixing part of the cover member.
[0046] Aspect 5: A door body according to Aspect 4, characterized in that the fixing portion of the cover member provided at the lower end of the door body has a through hole at a position opposite the gap.
[0047] According to the door body of aspect 5, the fixing part of the cover member provided at the lower end of the door body has a through hole provided at a position opposite the gap, so that rainwater and the like that enters the groove part flows downward to the gap and can be discharged to the outside through the through hole provided in the fixing part.
[0048] Aspect 6: A door body according to any one of Aspects 1 to 4, characterized in that the surface facing portion of the cover member provided at the lower end of the door body has an extension piece that extends into the groove portion, and the height of the extension piece increases in the extension direction from the surface facing portion.
[0049] According to the door body of aspect 6, the extension piece provided on the surface facing portion of the cover member provided at the lower end of the door body extends into the groove portion so that its height increases in the extension direction from the surface facing portion, so that rainwater, dust, etc. that enter the groove portion and move downward can be discharged to the outside by the extension portion.
[0050] Aspect 7: The door body according to any one of Aspects 1 to 6, wherein the surface facing portion is provided along the groove portion.
[0051] According to the door body of the seventh aspect, the surface-facing portion is provided along the groove, so that the portion of the surface-facing portion facing the groove is also closer to the surface material. Therefore, even in the groove, the shadow of the surface-facing portion is not cast on the surface material, making it possible to provide a door body with even better design. [Explanation of symbols]
[0052] 1 door (door body), 1a groove portion, 3 frame body, 4 surface material, 5 cover member, 5a Fixed part, 5b Surface facing part, 5d Drain hole (through hole), 5e first plate portion, 5f second plate portion, 5g extension portion, 6 rivet (fixing device), 31 Upper aggregate (aggregate), 32 Lower aggregate (aggregate), 40 Outdoor surface material (surface material), 40a outdoor side portion (covering surface portion), 40b upper outdoor visible surface portion (visible surface portion), 40c Lower outdoor visible surface (visible surface), 40f Notch, S void,
Claims
1. a frame body in which a plurality of aggregates are framed; A door body comprising a covering surface portion that covers the frame body from the outward direction of the surface, and a surface material having 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 cutout portion in which the visible surface portion is cut out, and a groove portion that is provided in the covering surface portion and is recessed in the visible direction and connected to the cutout portion, A door body characterized by having a cover member having a fixed portion that covers and is fixed to the cutout portion, and a surface opposing portion that is connected to the fixed portion and faces the cover surface portion in the forward direction.
2. The door body according to claim 1, The fixing portion has a first plate portion located on the surface facing portion side in the projection direction and a second plate portion provided on the opposite side to the surface facing portion, The first plate portion is fixed to the projection plate portion by a fastener, 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 surface facing portion abuts against the surface material.
4. The door body according to claim 1 or 2, A door body characterized in that a gap is formed between the part of the fixing part that covers the cutout part and the aggregate, and the gap is connected to the inside of the groove part.
5. The door body according to claim 4, The door body is characterized in that the fixing portion of the cover member provided at the lower end of the door body has a through hole formed at a position facing the gap.
6. The door body according to claim 1 or 2, the surface facing portion of the cover member provided at the lower end of the door body has an extension piece extending into the groove portion, The door body is characterized in that the height of the extension piece increases from the surface opposing portion in the extension direction.
7. The door body according to claim 1 or 2, The door body is characterized in that the surface facing portion is provided along the groove portion.
Citation Information
Patent Citations
Door
JP2019157480A