Door frame structure

Abstract

To improve the workability of assembling a door body frame with adhesives.SOLUTION: In a door body frame structure assembled in a four-sided manner, an extension part 13 is formed on a first width side 11 of an upper frame 1, an extension part 23 is formed on a first width side 21 of a lower frame 2, a cutout part 37 is formed on the upper end of a vertical frame 3 and a cutout part 38 is formed on its lower end, an end part depth side (upper side part 33) is formed adjacent to the cutout part 37, an end part depth side (lower side part 34) is formed adjacent to the cutout part 38, the inner surface of the extension part 13 is close to or in contact with a side end surface 331 of the end part depth side in a state of receiving the extension part 13 in the cutout part 37, and the inner surface of the extension part 23 is close to or in contact with a side end surface 341 of the end part depth side in a state of receiving the extension part 23 in the cutout part 38.SELECTED DRAWING: Figure 3

Description

Technical Field

[0005] ,

[0001] The present invention relates to a frame structure of a door body.

Background Art

[0002] In a steel door typified by a heavy door provided at an entrance of a building or the like, a method of assembling a door frame by welding or using a structural bonding tape or an adhesive is generally known. However, welding work requires skilled techniques, and there are also problems of thermal distortion and finish, which makes the production time-consuming and laborious. Therefore, a door assembly method using a structural bonding tape or an adhesive that can improve workability and reduce finishing work has been widely adopted.

[0003] When assembling a steel door by adhesion, it is manufactured by adhering a surface material to a frame assembled in a circumferential shape (Patent Document 1). More specifically, one surface material is placed on the floor surface, and the upper frame, lower frame, and left and right vertical frames are adhered to the surface material in a state of being assembled in a circumferential shape. In the state of being assembled in a circumferential shape, the frame assembled in a circumferential shape is fixed by the curing of an adhesive that adheres each frame to the surface material.

[0004] However, the adhesive requires a predetermined time to exhibit an initial adhesive force, and during that time, it must be clamped, and since the work must be interrupted during that time, there is a problem with workability. On the other hand, if the clamping is stopped and the work is started before the initial adhesive force is exhibited, the position of the door frame may shift or it may fall down.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to improve the workability of assembling a door body frame using adhesion.

Means for Solving the Problems

[0006] The technical means employed in this invention are: In a door frame structure assembled in a perimeter from horizontal and vertical frames, The aforementioned horizontal frame comprises a face surface and a pair of facing edges, The aforementioned vertical frame comprises a front surface and a pair of front edges, The ends of the horizontal frame and the ends of the vertical frame are joined together. An extension is formed on one of the visible edges of one end. A notch is formed on one visible edge of the other end to receive the extension, and an end-depth edge is formed adjacent to the notch on the other end. With the extension of one end receiving the notch of the other end, the inner surface of the extension is close to or in contact with the side end surface of the end's protruding edge. This is the frame structure of the door body.

[0007] In one embodiment, the base end portion of the inner surface of the extension is close to or in contact with the side end surface of the end projection edge. In one embodiment, the surface of the end-depth edge of the other end is close to or in contact with the end surface of the depth surface of the one end.

[0008] In one embodiment, a locking groove extending in the depth direction is formed on the side end face of the end depth edge, A locking piece is formed at a predetermined portion of the extension, which locks into the locking groove from the direction of insertion.

[0009] In one embodiment, the frame structure includes an intermediate vertical frame, The aforementioned intermediate vertical frame comprises a face surface and a pair of visible edges, with an upper extension formed at the upper end of one of the visible edges and a lower extension formed at the lower end. An intermediate notch is formed in one of the visible edges of the upper and lower frames, which are the aforementioned horizontal frames. The upper extension is received in the intermediate notch of the upper frame, and the lower extension is received in the intermediate notch of the lower frame.

[0010] In one embodiment, the frame structure includes an intermediate transverse frame, The aforementioned intermediate horizontal frame comprises a front surface and a pair of visible edges, with lateral extensions formed at both ends of one of the visible edges in the longitudinal direction. An intermediate notch is formed on one of the visible edges of the left and right vertical frames. One lateral extension is received in an intermediate notch of one vertical frame, and the other lateral extension is received in an intermediate notch of the other vertical frame.

[0011] In one embodiment, with the horizontal frame and vertical frame assembled around the perimeter, the other visible edges of the horizontal frame and the vertical frame are bonded to the surface material with an adhesive. Furthermore, the door frame structure according to the present invention can also be applied when the ends of the horizontal and vertical frames are welded together in a state where the horizontal and vertical frames are assembled in a circumferential manner.

[0012] In the embodiment described later, in the frame structure of the door body assembled in a perimeter, an extension is formed on the first visible edge of the upper frame, an extension is formed on the first visible edge of the lower frame, an upper notch is formed at the upper end of the vertical frame, a lower notch is formed at the lower end, an end-fill edge (upper part of the inner visible edge) is formed adjacent to the upper notch, and an end-fill edge (lower part of the inner visible edge) is formed adjacent to the lower notch, with the extension of the upper frame being received in the upper notch, the inner surface of the extension of the upper frame being close to or in contact with the side end surface of the end-fill edge (upper part of the inner visible edge), and with the extension of the lower frame being received in the lower notch, the inner surface of the extension of the lower frame being close to or in contact with the side end surface of the end-fill edge (lower part of the inner visible edge). [Effects of the Invention]

[0013] In the present invention, in a frame structure of a door body assembled in a four-sided shape from a horizontal frame and a vertical frame, by assembling the end portion of the horizontal frame and the end portion of the vertical frame in a fitted state (fitting one extension portion and the other notch portion), displacement between the end portions and tilting of the horizontal frame or the vertical frame are prevented, and the workability of the assembly work of the door body is improved. For example, when adhering the frame of the door body assembled in a four-sided shape to a surface material, the assembly work of the door body can be advanced without waiting for the adhesive to cure.

Brief Description of the Drawings

[0014] [Figure 1] It is a perspective view of a door body frame according to the first embodiment. [Figure 2] It is an exploded perspective view of a door body according to the first embodiment. [Figure 3] It is a diagram for explaining the incorporation of the upper and lower frames with respect to the vertical frame in the door body frame according to the first embodiment. [Figure 4] It is a diagram for explaining the incorporation of the intermediate vertical frame with respect to the upper and lower frames in the door body frame according to the first embodiment. [Figure 5] It is a diagram showing the upper frame of the door body frame according to the first embodiment. [Figure 6] It is a perspective view of a door body according to the first embodiment. [Figure 7] It is a perspective view of a door body frame according to the second embodiment. [Figure 8] It is an exploded perspective view of a door body according to the second embodiment. [Figure 9] It is a diagram for explaining the incorporation of the upper and lower frames with respect to the vertical frame in the door body frame according to the second embodiment. [Figure 10] It is a diagram showing the upper frame of the door body frame according to the second embodiment. [Figure 11] It is a diagram showing the vertical frame of the door body frame according to the second embodiment.

Modes for Carrying Out the Invention

[0015] [I] First Embodiment The frame structure of the door body according to the first embodiment will be described with reference to Figures 1 to 6. [A] Basic configuration of the door frame As shown in Figure 1, the frame of the door body, or structural member, is formed as a perimeter frame by combining an upper frame 1, a lower frame 2, and left and right vertical frames 3 in a perimeter manner, and an intermediate vertical frame or central frame 4 is provided between the upper frame 1 and the lower frame 2, parallel to the left and right vertical frames 3. In the illustrated embodiment, one central vertical frame 4 is shown, but there may be multiple intermediate vertical frames 4. The upper frame 1, lower frame 2, vertical frames 3, and intermediate vertical frame 4 in this embodiment are formed from steel plates having a predetermined thickness, and in this specification, the edges or surfaces where the cross-section of the steel plate is exposed are referred to as "end faces".

[0016] [A-1] Upper frame The upper frame 1 is a long member extending in the width direction of the door body, and has a length (visible dimension) that is approximately corresponding to the door width (visible width) and a width (depth dimension) that is approximately corresponding to the thickness (depth width) of the door body. In this embodiment, the upper and lower ends of the left and right vertical frames 3 are approximately coincident with the upper and lower ends of the door body, and the length (visible dimension) of the upper frame 1 is shorter than the width dimension of the door body.

[0017] As shown in Figures 3 and 5, the upper frame 1 has a top surface 10, a first visible edge 11 hanging down from one end of the top surface 10 in the width direction (depth direction), and a second visible edge 12 hanging down from the other end of the top surface 10 in the width direction (depth direction), forming a U-shaped portion in cross-section. Furthermore, a bent edge 15 is formed at the lower end of the first visible edge 11, extending horizontally toward the second visible edge 12.

[0018] In the upper frame 1, the length dimensions of the top surface 10, the second visible edge 12, and the folded edge 15 are the same, and the end faces 100, 120, and 150 at both ends in the longitudinal direction coincide. The length dimension of the first visible edge 11 is larger than the length dimensions of the top surface 10, the second visible edge 12, and the folded edge 15, and extensions 13 are integrally formed at both ends of the first visible edge 11 in the longitudinal direction.

[0019] The height dimension of the extension portion 13 of the first visible edge 11 of the upper frame 1 is smaller than the height dimension of the upper frame 1 by the thickness of the top surface 10 and the folded edge 15 (see Figure 5). The extension portion 13 has a vertical tip surface 130, a horizontal upper end surface 131, and a horizontal lower end surface 132.

[0020] A rectangular intermediate notch 14 is formed in the lower half of the center along the length of the first visible edge 11. The intermediate notch 14 includes the base end portion of the bent edge 15, and the height of the lower end of the intermediate notch 14 coincides with the lower end of the upper frame 1 (see Figure 5). The intermediate notch 14 consists of an upper end surface 140, left and right side end surfaces 141 and 142, and a lower end surface 143. The upper end surface 140 and the left and right side end surfaces 141 and 142 are made from the cross-section of the first visible edge 11, and the lower end surface 143 is made from the cross-section of the bent edge 15. In the illustrated embodiment, one intermediate notch 14 is shown corresponding to one intermediate vertical frame 4, but please note that the number and position of intermediate notches will differ depending on the number of intermediate vertical frames.

[0021] [A-2] Lower frame The lower frame 2 is a long member extending in the width direction of the door body, and has a length (visible dimension) that is approximately corresponding to the door width (visible width) and a width (depth dimension) that is approximately corresponding to the thickness (depth width) of the door body. In this embodiment, the upper and lower ends of the left and right vertical frames 3 are approximately coincided with the upper and lower ends of the door body, and the length (visible dimension) of the lower frame 2 is shorter than the width dimension of the door body.

[0022] As shown in Figure 3, the lower frame 2 has a U-shape in cross-section, comprising an upper surface 20, a first visible edge 21 hanging down from one end of the upper surface 20 in the width direction (depth direction), and a second visible edge 22 hanging down from the other end of the upper surface 20 in the width direction (depth direction).

[0023] The length dimensions of the top surface 20 and the second visible edge 22 are the same, and the end faces 200 and 220 at both ends in the longitudinal direction coincide. The length dimension of the first visible edge 21 is larger than the length dimensions of the top surface 20 and the second visible edge 22, and extensions 23 are integrally formed at both ends of the first visible edge 21 in the longitudinal direction.

[0024] The height dimension of the extension portion 23 of the first visible edge 21 of the lower frame 2 is smaller than the height dimension of the lower frame 2 by the thickness of the upper surface 20. The extension portion 23 has a vertical tip surface 230, a horizontal upper end surface 231, and both ends in the longitudinal direction of the lower end surface 210 of the first visible edge 21.

[0025] A rectangular intermediate notch 24 is formed in the upper half of the center in the longitudinal direction of the first visible edge 21. The intermediate notch 24 includes the base end portion of the upper surface 20, and the height position of the upper end of the intermediate notch 24 coincides with the upper end of the lower frame 2. The intermediate notch 24 consists of an upper end surface 240, left and right side end surfaces 241 and 242, and a lower end surface 243. The upper end surface 240 is made from the cross section of the upper surface 20, and the left and right side end surfaces 241 and 242 and the lower end surface 243 are made from the cross section of the first visible edge 21. In the illustrated embodiment, one intermediate notch 24 is shown corresponding to one intermediate vertical frame 4, but please note that the number and position of intermediate notches will differ depending on the number of intermediate vertical frames. Furthermore, the orientation of the lower frame may be an inverted version of the illustrated configuration. Specifically, the lower frame may have a U-shape in cross-section, consisting of a pair of visible edges and a base piece.

[0026] [A-3] Vertical Frame The vertical frame 3 is a long member extending in the height direction of the door body, and has a length (height) that is approximately corresponding to the door height and a width (depth dimension) that is approximately corresponding to the thickness (depth width) of the door body. In the illustrated embodiment, the left and right vertical frames 3 are symmetrical and have substantially the same shape, and the following description applies to both the left and right vertical frames 3. However, the left and right vertical frames 3 do not have to be symmetrical.

[0027] As shown in Figure 3, the vertical frame 3 has a U-shaped section in cross-section, comprising a front surface 30, a first facing edge 31 extending in the facing direction from one end of the front surface 30 in the width direction (front direction), and a second facing edge 32 extending in the facing direction from the other end of the front surface 30 in the width direction (front direction). Furthermore, an inner front surface extending in the facing direction from the tip of the first facing edge 31 is bent and formed. Note that in Figure 3, only the upper portion 33 and the lower portion 34 of the inner front surface are shown, and the portion located between the upper portion 33 and the lower portion 34 is hidden.

[0028] In the vertical frame 3, the height dimensions of the front surface 30, the first front edge 31, the second front edge 32, and the inner front edge are the same, but the upper and lower ends of the first front edge 31 are partially cut out in the front direction.

[0029] More specifically, as shown in Figure 3, the upper end surface of the first visible edge 31 is formed from a first upper end surface 310 at the same height as the upper end surface 300 of the depth surface 30 and the upper end surface 320 of the second visible edge 32, and a second upper end surface 312 at a lower height than the first upper end surface 310. The lower end surface of the first visible edge 31 is formed from a first lower end surface 311 at the same height as the lower end surface of the depth surface 30 and the lower end surface of the second visible edge 32, and a second lower end surface 313 at a higher height than the first lower end surface 311.

[0030] The inner edge of the vertical frame 3 comprises an upper portion 33 located above the second upper end surface 312 of the first visible edge 31, and a lower portion 34 located below the second lower end surface 313 of the first visible edge 31.

[0031] The upper end surface 330 of the inner depth edge is at the same height as the upper end surface 300 of the depth surface 30, the first upper end surface 310 of the first visible edge 31, and the upper end surface 320 of the second visible edge 32. The upper portion 33 of the inner depth edge comprises a horizontal upper end surface 330 and a vertical side end surface 331. The upper notch 37 of the first visible edge 31 is the region enclosed by a vertical side end surface 314 extending from the first upper end surface 310 to the second upper end surface 312, a horizontal second upper end surface 312, and a vertical side end surface 331.

[0032] The lower end surface 340 of the inner depth edge is at the same height as the lower end surface of the depth surface 30, the first lower end surface 311 of the first visible edge 31, and the lower end surface of the second visible edge 32. The lower portion 34 of the inner depth edge comprises a horizontal lower end surface 340 and a vertical side end surface 341. The lower cutout portion 38 of the first visible edge 31 is the region enclosed by a vertical side end surface 315 extending from the first lower end surface 311 to the second lower end surface 313, a horizontal second lower end surface 313, and a vertical side end surface 341.

[0033] [A-4] Intermediate vertical frame The intermediate vertical frame 4 is a long member extending in the width direction of the door body, and has a length (height) that is approximately corresponding to the door height and a width (depth dimension) that is approximately corresponding to the thickness (depth width) of the door body. In this embodiment, the intermediate vertical frame 4 is located between the upper frame 1 and the lower frame 2, and the height of the intermediate vertical frame 4 is lower than the door height.

[0034] As shown in Figure 4, the intermediate vertical frame 4 is formed in a U-shape in cross-section, consisting of a depth surface 40, a first facing edge 41 extending in the facing direction from one end of the depth surface 40 in the width direction (depth direction), and a second facing edge 42 extending in the facing direction from the other end of the depth surface 40 in the width direction (depth direction).

[0035] The upper end surface 430 of the first visible edge 41 is located at a higher height than the upper end surface 400 of the depth surface 40 and the upper end surface 420 of the second visible edge 42, and an upper extension portion 43 is formed at the upper end of the first visible edge 41. The upper extension portion 43 comprises the upper end surface 430, a first side end surface 431, and a second side end surface which is the upper end portion of the tip surface 410 of the first visible edge 41.

[0036] The lower end surface 440 of the first visible edge 41 is located at a lower height than the lower end surface 401 of the depth surface 40 and the lower end surface 421 of the second visible edge 42, and a lower extension portion 44 is formed at the lower end of the first visible edge 41. The lower extension portion 44 comprises the lower end surface 440, the first side end surface 441, and the second side end surface which is located at the lower end of the tip surface 410 of the first visible edge 41.

[0037] [B] Frame assembly When assembling the perimeter frame from the upper frame 1, lower frame 2, and left and right vertical frames 3, the second visible edge 12 of the upper frame 1, the second visible edge 22 of the lower frame 2, and the second visible edges 32 of the left and right vertical frames 3 are glued to the surface of the surface material laid flat on the floor (for example, the visible surface 60 of the second surface material 6). Therefore, please note that this is not done with the vertical frames 3 in an upright position (as shown in the diagram). The frame may also be assembled by swapping the configuration of the ends of the upper frame 1 and lower frame 2 with the configuration of the ends of the left and right vertical frames 3. [B-1] Combination of top frame and vertical frame In the state where the longitudinal end of the upper frame 1 and the upper end of the vertical frame 3 are assembled, the tip surface 130 of the extension portion 13 of the first visible edge 11 of the upper frame 1 abuts against or is close to the side end surface 314 of the notch portion 37 at the upper end of the vertical frame 3, the lower end surface 132 of the extension portion 13 abuts against or is close to the second upper end surface 312 of the notch portion 37 at the upper end of the vertical frame 3, and the base end portion of the inner surface of the extension portion 13 abuts against or is close to the side end surface 331 of the upper portion 33 of the inner visible edge.

[0038] The end face 120 of the second visible edge 12 of the upper frame 1 abuts against or is in close proximity to the upper part of the tip surface 321 of the second visible edge 32 of the vertical frame 3. The end face 100 of the upper surface 10 of the upper frame 1 and the surface portion of the upper part 33 of the inner visible edge of the vertical frame 3 abut against or are in close proximity to each other. The upper frame 1 and the vertical frame 3 have a predetermined plate thickness and are combined by the abutment or proximity of end faces to each other, or between end faces and surface portions, as defined by the plate thickness.

[0039] [B-2] Combination of bottom frame and vertical frame In the state where the end of the lower frame 2 and the lower end of the vertical frame 3 are assembled, the tip surface 230 of the extension portion 23 of the first visible edge 21 of the lower frame 2 abuts against or is close to the side end surface 315 of the notch portion 38 at the lower end of the vertical frame 3, the upper end surface 231 of the extension portion 23 abuts against or is close to the second lower end surface 313 of the notch portion 38 at the lower end of the vertical frame 3, and the base end portion of the inner surface of the extension portion 23 abuts against or is close to the side end surface 341 of the lower portion 34.

[0040] The end face 220 of the second visible edge 22 of the lower frame 2 abuts against or is close to the lower part of the tip face 321 of the second visible edge 32 of the vertical frame 3. The end face 200 of the upper surface 20 of the lower frame 2 abuts against or is close to the surface of the lower part 34 of the inner visible edge of the vertical frame 3. The lower frame 2 and the vertical frame 3 have a predetermined plate thickness and are joined together by the abutment of end faces to each other or between end faces and surface areas, as defined by the plate thickness.

[0041] [B-3] Combination of top and bottom frames and intermediate vertical frames In the state where the intermediate portion of the upper frame 1 and the upper end portion of the intermediate vertical frame 4 are assembled, the upper end surface 430 of the upper extension portion 43 is close to or in contact with the upper end surface 140 of the intermediate notch portion 14, the first side end surface 431 of the upper extension portion 43 is close to or in contact with the side end surface 141 of the intermediate notch portion 14, the second side end surface (the portion above the tip surface 410) of the upper extension portion 43 is close to or in contact with the side end surface 142 of the intermediate notch portion 14, and the lower end portion of the inner surface of the upper extension portion 43 is in contact with or close to the lower end surface 143 of the intermediate notch portion 14.

[0042] The upper end surface 420 of the second visible edge 42 of the intermediate vertical frame 4 is close to or in contact with the lower end 121 of the second visible edge 12 of the upper frame 1. The upper frame 1 and the intermediate vertical frame 4 have a predetermined plate thickness and are joined together by the contact of end surfaces defined by the plate thickness, or by the contact of end surfaces with other surfaces.

[0043] In the state where the middle portion of the lower frame 2 and the lower end portion of the intermediate vertical frame 4 are assembled, the lower end surface 440 of the lower extension portion 44 is close to or in contact with the lower end surface 243 of the intermediate notch portion 24, the first side end surface 441 of the extension portion 44 is close to or in contact with the side end surface 241 of the intermediate notch portion 24, the second side end surface of the lower extension portion 44 (the portion below the tip surface 410) is close to or in contact with the side end surface 242 of the intermediate notch portion 24, and the upper end portion of the inner surface of the lower extension portion 44 is close to or in contact with the upper end surface 240 of the intermediate notch portion 24.

[0044] The lower end surface 401 of the visible surface 40 and the lower end surface 421 of the second visible edge 42 of the intermediate vertical frame 4 are in close proximity to or in contact with the upper surface 20 of the lower frame 2. The lower frame 2 and the intermediate vertical frame 4 have a predetermined plate thickness and are joined together by the contact of end faces with each other or between end faces and surface portions, as defined by the plate thickness.

[0045] [C] Door panel composition As shown in Figure 6, the door body is formed by bonding the first surface material 5 and the second surface material 6 to the frame of the door body. As shown in Figure 2, the first surface material 5 has a U-shape in cross-section, consisting of a visible surface portion 50 and left and right edges 51 formed by bending at right angles at both ends of the visible surface portion 50 in the width direction. The second surface material 6 consists of a visible surface portion 60 and left and right edges 61 formed by bending at right angles at both ends of the visible surface portion 60 in the width direction.

[0046] The visible surface portion 50 of the first surface material 5 forms one visible surface of the door body, and the visible surface portion 60 of the second surface material 6 forms the other visible surface of the door body. The depth edge 51 of the first surface material 5 abuts against or is bonded to half of the depth surface 30 of the vertical frame 3 in the depth direction, and the depth edge 61 of the second surface material 6 abuts against or is bonded to half of the depth surface 30 of the vertical frame in the depth direction, and the leading edge of the depth edge 51 and the leading edge of the depth edge 61 abut or are in close proximity, and the depth surface of the door body is formed from the depth edges 51 and 61.

[0047] In the illustrated configuration, the upper ends of the visible surface portion 50 of the first surface material 5 and the upper ends of the visible surface portion 60 of the second surface material 6 coincide with the upper surface 20 of the upper frame 1. However, folded edges may be formed on the upper ends of the visible surface portion 50 and the upper ends of the visible surface portion 60 to cover the upper surface 10 of the upper frame 1. In the illustrated configuration, the lower ends of the visible surface portion 50 of the first surface material 5 and the lower ends of the visible surface portion 60 of the second surface material 6 coincide with the lower ends of the first visible edge 21 and the second visible edge 22 of the lower frame 2.

[0048] [D] Assembly of the door body The second surface material 6 is placed on the floor surface, and the left and right vertical frames 3 are bonded to the second surface material 6. More specifically, the second visible edges 32 of the left and right vertical frames 3 are bonded to the inner surface of the visible surface portion 60 of the second surface material 6, and the half of the depth surface 30 of the left and right vertical frames 3 on the side of the second visible edge 32 is brought into contact with or bonded to the inner surface of the depth edge 61 of the second surface material 6.

[0049] The upper frame 1 is assembled from the front (from the depth direction) onto the upper portion of the second surface material 6 and the upper ends of the left and right vertical frames 3. The second visible edge 12 of the upper frame 1 is bonded to the visible surface portion 60 of the second surface material 6, and the end face 120 of the second visible edge 12 of the upper frame 1 is brought into contact with or close to the upper portion of the tip surface 321 of the second visible edge 32 of the vertical frame 3. The end face 100 of the upper surface 10 of the upper frame 1 is brought into contact with or close to the surface portion of the upper portion 33 of the inner depth edge of the vertical frame 3.

[0050] The extension portion 13 of the first visible edge 11 of the upper frame 1 is fitted into the notch 37 at the upper end of the vertical frame 3. More specifically, the tip surface 130 of the extension portion 13 is brought into contact with or close to the side end surface 314 of the notch 37, the lower end surface 132 of the extension portion 13 is brought into contact with or close to the second upper end surface 312 of the notch 37 at the upper end of the vertical frame 3, and the base end portion of the inner surface of the extension portion 13 is brought into contact with or close to the side end surface 331 of the upper portion 33.

[0051] The lower frame 2 is assembled from the front (from the depth direction) onto the lower portion of the second surface material 6 and the lower ends of the left and right vertical frames 3. The second visible edge 22 of the lower frame 2 is bonded to the visible surface portion 60 of the second surface material 6, and the end face 220 of the second visible edge 22 of the lower frame 2 is brought into contact with or close to the lower portion of the tip surface 321 of the second visible edge 32 of the vertical frame 3. The end face 200 of the upper surface 20 of the lower frame 2 is brought into contact with or close to the surface portion 34 of the lower portion of the inner depth edge of the vertical frame 3.

[0052] The extension portion 23 of the first visible edge 21 of the lower frame 2 is fitted into the notch 38 at the lower end of the vertical frame 3. More specifically, the tip surface 230 of the extension portion 23 is brought into contact with or close to the side end surface 315 of the notch 38, the upper end surface 231 of the extension portion 23 is brought into contact with or close to the second lower end surface 313 of the notch 38 at the lower end of the vertical frame 3, and the base end portion of the inner surface of the extension portion 23 is brought into contact with or close to the side end surface 341 of the lower portion 34.

[0053] Next, the intermediate vertical frame 4 is incorporated into the frame assembled around the perimeter from the front. The second visible edge 42 and the depth surface 40 of the intermediate vertical frame 4 are inserted into the space between the upper frame 1 and the lower frame 2, the upper end surface 430 of the upper extension portion 43 is brought close to or in contact with the upper end surface 140 of the intermediate notch portion 14 of the upper frame 1, the first side end surface 431 and the second side end surface (410) of the upper extension portion 43 are brought close to or in contact with the left and right side end surfaces 141 and 142 of the intermediate notch portion 14 of the upper frame 1, and the inner surface of the upper extension portion 43 is brought into contact with or close to the lower end surface 143 of the intermediate notch portion 14.

[0054] The lower end surface 440 of the lower extension portion 44 of the intermediate vertical frame 4 is brought close to or in contact with the lower end surface 243 of the intermediate notch portion 24 of the lower frame 2, the first side end surface 441 and the second side end surface (410) of the lower extension portion 44 are brought close to or in contact with the left and right side end surfaces 241 and 242 of the intermediate notch portion 24 of the lower frame 2, and the inner surface of the lower extension portion 44 is brought into contact with or close to the upper end surface 240 of the intermediate notch portion 24.

[0055] In this way, a frame is assembled in a perimeter shape from the upper frame 1, lower frame 2, and left and right vertical frames 3 on the second surface material 6 placed on the floor. A predetermined amount of time is required for the adhesive that bonds the second visible edges 32 of the left and right vertical frames 3 to the visible surface portion 60 of the second surface material 6, and for the adhesive that bonds the second visible edge 12 of the upper frame 1 and the second visible edge 22 of the lower frame 2 to the visible surface portion 60 of the second surface material 6 to harden. However, the visible surface 30 of the vertical frame 3 abuts against or is bonded to the rising visible edge 61 of the second surface material 6, and the side end faces 314 and 315 of the first visible edge 31 are attached to the tip surface 130 of the extension portion 13 of the upper frame 1, and the lower frame The tip surface 230 of the extension portion 23 of frame 2 is close to or in contact with the upper and lower portions of the tip surface 321 of the second visible edge 32 are close to or in contact with the end surface 120 of the second visible edge 12 of upper frame 1 and the end surface 220 of the second visible edge 22 of lower frame 2, and the surface portion of the upper portion 33 and the surface portion of the lower portion 34 are close to or in contact with the end surface 100 of the depth surface 10 of upper frame 1 and the end surface 200 of the depth surface 20 of lower frame 2, thereby preventing the vertical frame 3 from tipping over.

[0056] With the extension portion 13 fitted into the notch portion 37, the upper frame 1 has its inner surface in contact with or close to the side end surface 331 of the upper portion 33 of the inner depth edge, which prevents misalignment of the combined position of both ends of the upper frame 1 in the longitudinal direction and the upper ends of the left and right vertical frames 3, and also prevents the upper frame 1 from tipping over. More specifically, when the extension portion 13 and the notch portion 37 are fitted together, if either the upper frame 1 or the vertical frame 3, or both, move inward, the tip surface 130 of the extension portion 13 of the upper frame 1 and the side end surface 314 of the vertical frame come into contact, or / or the end surface 100 of the depth surface 10 of the upper frame 1 and the upper end portion of the upper part of the inner depth edge 33 of the vertical frame 3 come into contact, or / or the lower end surface 132 of the extension portion 13 of the upper frame 1 and the second upper end surface 312 of the first visible edge 31 of the vertical frame 3 come into contact, thereby preventing it from falling over. Also, if the vertical frame 3 moves inward, the side end surface 331 of the upper part of the inner depth edge 33 of the vertical frame 3 comes into contact with the inner surface of the extension portion 13 of the upper frame 1, thereby preventing it from falling over.

[0057] With the extension portion 23 of the lower frame 2 fitted into the notch portion 38, the inner surface of the lower frame 2 is in contact with or close to the side end surface 341 of the lower portion 34 of the inner depth edge, preventing misalignment of the combined position of both ends of the lower frame 2 in the longitudinal direction and the lower ends of the left and right vertical frames 3, and also preventing the lower frame 2 from tipping over. More specifically, when the extension portion 23 and the notch portion 38 are fitted together, if either the lower frame 2 or the vertical frame 3, or both, move inward, the tip surface 230 of the extension portion 23 of the lower frame 2 and the side end surface 315 of the vertical frame come into contact, or / or the end surface 200 of the depth surface 20 of the lower frame 2 and the lower end portion of the lower part of the inner depth edge 34 of the vertical frame 3 come into contact, or / or the upper end surface 231 of the extension portion 23 of the lower frame 2 and the second lower end surface 313 of the first visible edge 31 of the vertical frame 3 come into contact, thereby preventing it from falling over. Also, if the vertical frame 3 moves inward, the side end surface 341 of the lower part of the inner depth edge 34 of the vertical frame 3 comes into contact with the inner surface of the extension portion 23 of the lower frame 2, thereby preventing it from falling over.

[0058] The intermediate vertical frame 4 has an upper extension portion 43 that fits into the intermediate notch portion 14 of the upper frame 1, and is in contact with or close to the lower end surface 143 of the intermediate notch portion 14. The lower extension portion 44 has a lower extension portion 44 that fits into the intermediate notch portion 24 of the lower frame 2, and is in contact with or close to the upper end surface 240 of the intermediate notch portion 24. This prevents misalignment of the upper and lower ends of the intermediate vertical frame 4 with the upper frame 1 and lower frame 2, and also prevents the intermediate vertical frame 4 from tipping over.

[0059] In a frame assembled on a second surface material 6 placed on the floor, the upper frame 1, lower frame 2, left and right vertical frames 3, and intermediate vertical frame 4 are bonded to the visible surface portion 60 of the second surface material 6 with adhesive at the second visible edges 12, 22, 32, and 42, respectively. However, since misalignment and tilting of the upper frame 1, lower frame 2, and left and right vertical frames 3 are prevented, work can proceed without waiting for the adhesive to harden.

[0060] The first surface material 5 is attached to the frame assembled on the second surface material 6. The inner surface of the visible surface portion 50 of the first surface material 5 is bonded to the first visible edge 11 of the upper frame 1, the first visible edge 21 of the lower frame 2, the first visible edges 31 of the left and right vertical frames 3, and the first visible edge 41 of the intermediate vertical frame 4. At the same time, the left and right recessed edges 51, 51 of the first surface material 5 are brought into contact with or bonded to the half of the recessed surface 30 of the left and right vertical frames 3 on the side of the first visible edge 31. Once the adhesive has hardened, the assembly of the door body is complete.

[0061] [II] Second Embodiment The frame structure of the door body according to the second embodiment will be described with reference to Figures 7 to 10. The first and second embodiments include common components, and the same reference numerals are used for common elements. For explanations of elements with the same reference numerals, the description of the first embodiment can be appropriately referenced. In the following description, the differences between the frame structure of the door body according to the second embodiment and the frame structure of the door body according to the first embodiment will be mainly described.

[0062] [A] Basic configuration of the door frame As shown in Figure 7, the frame of the door body, or structural member, is formed as a perimeter frame by combining an upper frame 1, a lower frame 2, and left and right vertical frames 3 in a perimeter manner, and an intermediate vertical frame or central frame 4 is provided between the upper frame 1 and the lower frame 2, parallel to the left and right vertical frames 3.

[0063] [A-1] Upper frame As shown in Figures 9 and 10, the upper frame 1 has a top surface 10, a first visible edge 11 hanging down from one end of the top surface 10 in the width direction (depth direction), and a second visible edge 12 hanging down from the other end of the top surface 10 in the width direction (depth direction), forming a U-shaped portion in cross-section. Furthermore, a bent edge 15 is formed at the lower end of the first visible edge 11, extending horizontally toward the second visible edge 12.

[0064] In the upper frame 1, the length dimensions of the top surface 10 and the second visible edge 12 are the same, and the end faces 100 and 120 at both ends in the longitudinal direction coincide. The length dimensions of the first visible edge 11 and the folded edge 15 are greater than the length dimensions of the top surface 10 and the second visible edge 12. Extended portions 13 are integrally formed at both ends in the longitudinal direction of the first visible edge 11, and a locking piece 15' formed from the longitudinal end of the folded edge 15 is integrally formed at the lower end of the extended portion 13. In this embodiment, the protruding dimension (depth dimension) of the locking piece 15' is smaller than the protruding dimension (depth dimension) of the folded edge 15.

[0065] The height dimension of the extension portion 13 of the first visible edge 11 of the upper frame 1 is smaller than the height dimension of the upper frame 1 by the thickness of the top surface 10 (see Figure 10). The extension portion 13 has a vertical tip surface 130, a horizontal upper end surface 131, and a horizontal locking piece 15' at the lower end.

[0066] A rectangular intermediate notch 14 is formed in the lower half of the center along the length of the first visible edge 11. The intermediate notch 14 includes the base end of the bent edge 15, and the height of the lower end of the intermediate notch 14 coincides with the lower end of the upper frame 1 (see Figure 10). In the illustrated embodiment, one intermediate notch 14 is shown corresponding to one intermediate vertical frame 4, but please note that the number and position of the intermediate notches will differ depending on the number of intermediate vertical frames.

[0067] [A-2] Lower frame As shown in Figure 9, the lower frame 2 has a U-shape in cross-section, comprising an upper surface 20, a first visible edge 21 hanging down from one end of the upper surface 20 in the width direction (depth direction), and a second visible edge 22 hanging down from the other end of the upper surface 20 in the width direction (depth direction).

[0068] The length dimensions of the top surface 20 and the second visible edge 22 are the same, and the end faces 200 and 220 at both ends in the longitudinal direction coincide. The length dimension of the first visible edge 21 is larger than the length dimensions of the top surface 20 and the second visible edge 22, and extensions 23 are integrally formed at both ends of the first visible edge 21 in the longitudinal direction.

[0069] A locking piece 25 is formed at the upper end of the extension portion 23, and the locking piece 25 is integrally formed with the upper surface 20. The extension portion 23 has a vertical tip surface 230, a horizontal upper locking piece 25, and both longitudinal ends of the lower end surface 210 of the first visible edge 21.

[0070] A rectangular intermediate notch 24 is formed in the upper half of the center along the length of the first visible edge 21. The intermediate notch 24 includes the base end portion of the upper surface 20, and the height of the upper end of the intermediate notch 24 coincides with the upper end of the lower frame 2. In the illustrated embodiment, one intermediate notch 24 is shown corresponding to one intermediate vertical frame 4, but please note that the number and position of the intermediate notches will differ depending on the number of intermediate vertical frames.

[0071] [A-3] Vertical Frame As shown in Figures 9 and 11, the vertical frame 3 has a U-shaped section in cross-section, comprising a front surface 30, a first facing edge 31 extending in the facing direction from one end of the front surface 30 in the width direction (front direction), and a second facing edge 32 extending in the facing direction from the other end of the front surface 30 in the width direction (front direction). Furthermore, an inner front surface 39 extending in the facing direction from the tip of the first facing edge 31 is bent (Figure 11).

[0072] As shown in Figure 9, the upper end surface of the first visible edge 31 is formed from a first upper end surface 310 at the same height as the upper end surface 300 of the depth surface 30 and the upper end surface 320 of the second visible edge 32, and a second upper end surface 312 at a lower height than the first upper end surface 310. The lower end surface of the first visible edge 31 is formed from a first lower end surface 311 at the same height as the lower end surface of the depth surface 30 and the lower end surface of the second visible edge 32, and a second lower end surface 313 at a higher height than the first lower end surface 311.

[0073] The inner depth edge of the vertical frame 3 comprises an upper portion 33 located above the second upper end surface 312 of the first visible edge 31, and a lower portion 34 located below the second lower end surface 313 of the first visible edge 31. A locking groove 35 extending in the depth direction is formed at the lower end of the upper portion 33. A locking groove 36 extending in the depth direction is formed at the upper end of the lower portion 34.

[0074] The upper end surface 330 of the inner depth edge is at the same height as the upper end surface 300 of the depth surface 30, the first upper end surface 310 of the first visible edge 31, and the upper end surface 320 of the second visible edge 32. The upper portion 33 of the inner depth edge comprises a horizontal upper end surface 330 and a vertical side end surface 331. The upper notch 37 of the first visible edge 31 is a region enclosed by a vertical side end surface 314 extending from the first upper end surface 310 to the second upper end surface 312, a horizontal second upper end surface 312, and a vertical side end surface 331. The locking groove 35 extends in the depth direction from the lower end of the side end surface 331, and the lower end surface forming the locking groove 35 is at the same height as the second upper end surface 312.

[0075] The lower end surface 340 of the inner depth edge is at the same height as the lower end surface of the depth surface 30, the first lower end surface 311 of the first facing edge 31, and the lower end surface of the second facing edge 32. The lower portion 34 of the inner depth edge comprises a horizontal lower end surface 340 and a vertical side end surface 341. The lower notch 38 of the first facing edge 31 is a region enclosed by a vertical side end surface 315 extending from the first lower end surface 311 to the second lower end surface 313, a horizontal second lower end surface 313, and a vertical side end surface 341. The locking groove 36 extends in the depth direction from the upper end of the side end surface 341, and the upper end surface forming the locking groove 36 is at the same height as the second lower end surface 313.

[0076] [A-4] Intermediate vertical frame As shown in Figure 7, the intermediate vertical frame 4 is formed in a U-shape in cross-section, consisting of a depth surface 40, a first facing edge 41 extending in the facing direction from one end of the depth surface 40 in the width direction (depth direction), and a second facing edge 42 extending in the facing direction from the other end of the depth surface 40 in the width direction (depth direction).

[0077] The upper end surface 430 of the first visible edge 41 is located at a higher height than the upper end surface 400 of the depth surface 40 and the upper end surface 420 of the second visible edge 42, and an upper extension portion 43 is formed at the upper end of the first visible edge 41. The lower end surface 440 of the first visible edge 41 is located at a lower height than the lower end surface 401 of the depth surface 40 and the lower end surface 421 of the second visible edge 42, and a lower extension portion 44 is formed at the lower end of the first visible edge 41.

[0078] [B] Frame assembly [B-1] Combination of top frame and vertical frame The upper frame 1 is assembled from the front (from the depth direction) onto the upper portion of the second surface material 6 and the upper ends of the left and right vertical frames 3. The second visible edge 12 of the upper frame 1 is bonded to the visible surface portion 60 of the second surface material 6, and the end face 120 of the second visible edge 12 of the upper frame 1 is brought into contact with or close to the upper portion of the tip surface 321 of the second visible edge 32 of the vertical frame 3. The end face 100 of the upper surface 10 of the upper frame 1 is brought into contact with or close to the surface portion of the upper portion 33 of the inner depth edge of the vertical frame 3.

[0079] The extension portion 13 of the first visible edge 11 of the upper frame 1 is fitted into the notch 37 at the upper end of the vertical frame 3. More specifically, the tip surface 130 of the extension portion 13 is brought into contact with or close to the side end surface 314 of the notch 37, the locking piece 15' at the lower end of the extension portion 13 is locked from the forward direction into the locking groove 35 at the lower end of the upper portion 33 of the vertical frame 3, and the base end portion of the inner surface of the extension portion 13 is brought into contact with or close to the side end surface 331 of the upper portion 33.

[0080] The lower frame 2 is assembled from the front (from the depth direction) onto the lower portion of the second surface material 6 and the lower ends of the left and right vertical frames 3. The second visible edge 22 of the lower frame 2 is bonded to the visible surface portion 60 of the second surface material 6, and the end face 220 of the second visible edge 22 of the lower frame 2 is brought into contact with or close to the lower portion of the tip surface 321 of the second visible edge 32 of the vertical frame 3. The end face 200 of the upper surface 20 of the lower frame 2 is brought into contact with or close to the surface portion 34 of the lower portion of the inner depth edge of the vertical frame 3.

[0081] The extension portion 23 of the first visible edge 21 of the lower frame 2 is fitted into the notch 38 at the lower end of the vertical frame 3. More specifically, the tip surface 230 of the extension portion 23 is brought into contact with or close to the side end surface 315 of the notch 38, the locking piece 25 at the upper end of the extension portion 23 is locked from the forward direction into the locking groove 36 at the upper end of the lower portion 34 of the vertical frame 3, and the base end portion of the inner surface of the extension portion 23 is brought into contact with or close to the side end surface 341 of the lower portion 34.

[0082] In the upper frame 1, with the extension portion 13 fitted into the notch portion 37, the inner surface is in contact with or close to the side end surface 331 of the upper portion 33 of the inner depth edge, and the locking piece 15' integrally formed at the lower end of the extension portion 13 is locked into the locking groove 35 at the lower end of the upper portion 33 of the inner depth edge, thereby preventing misalignment of the combined position of both ends of the upper frame 1 in the longitudinal direction and the upper ends of the left and right vertical frames 3, and preventing the upper frame 1 from tipping over. In the second embodiment, in particular, the locking piece 15' is locked into the locking groove 35, which prevents the upper frame 1 from tipping over in the outward direction.

[0083] In the lower frame 2, with the extension portion 23 fitted into the notch portion 38, the inner surface is in contact with or close to the side end surface 341 of the lower portion 34 of the inner depth edge, and the locking piece 25 integrally formed on the upper end of the extension portion 23 is locked into the locking groove 36 at the upper end of the lower portion 34 of the inner depth edge, thereby preventing misalignment of the combined position of both longitudinal ends of the lower frame 2 and the lower ends of the left and right vertical frames 3, and preventing the lower frame 2 from tipping over. In the second embodiment in particular, the locking piece 25 is locked into the locking groove 36, which prevents the lower frame 2 from tipping over outward. [Explanation of Symbols]

[0084] 1. Top frame (horizontal frame) 10 Top surface (view surface) 11. First lookout edge 12. Second side of the facade 13 Extension 14 Intermediate cutout 15 Folding edges 15' Locking piece 2. Bottom frame (horizontal frame) 20 Top surface (view surface) 21 First lookout edge 22 Second Mitsuke area 23 Extension 24 Intermediate cutout 25 locking piece 3. Vertical Frame 30 View 31. First visible side (one of the visible sides) 32 Second Mitsuke area 33. Upper part of the inner edge (end edge) 331 Side end face 34. Lower part of the inner edge (end edge) 35 Locking groove 36 Locking groove 37 Notch 38 Notch 4. Intermediate vertical frame (intermediate horizontal frame) 40 View 41 First Lookout Side 42 Second Mitsuke area 43 Upper extension part 44 Lower extension part 5 First surface material 6 Second surface material

Claims

1. In a door frame structure assembled in a perimeter from horizontal and vertical frames, The aforementioned horizontal frame comprises a face surface and a pair of facing edges, The aforementioned vertical frame comprises a front surface and a pair of front edges, The ends of the horizontal frame and the ends of the vertical frame are joined together. An extension is formed on only one visible edge of one end, extending beyond the visible surface and the end face of the other visible edge. A notch is formed on only one visible edge of the other end to receive the extension, and an end-facing edge is formed adjacent to the notch on the other end, facing the visible surface, and the end-facing edge has a side end face extending in the direction of extension of the end-facing edge. With the extension of one end receiving the notch of the other end, the base end portion of the inner surface of the extension is close to or in contact with the side end surface of the end projection edge. The frame structure of the door body.

2. A locking groove extending in the depth direction is formed on the side end face of the end depth edge. A locking piece is formed at a predetermined portion of the extension that engages with the locking groove from the direction of insertion. The door frame structure according to claim 1.

3. The one end is the end of the horizontal frame, The other end is the end of the vertical frame, The vertical frame has an inner depth edge that extends in the depth direction from the tip of one of the visible edges, and the upper and / or lower portions of the inner depth edge form the end depth edge. The extension comprises upper and lower horizontal surfaces and a tip surface. The notch is a region enclosed by the vertical side end surface and horizontal plane formed on one of the visible edges, and the vertical side end surface of the end depth edge. The tip surface of the extension portion abuts against or is close to the side end surface formed on one of the visible edges, one of the horizontal surfaces of the extension portion abuts against or is close to the horizontal surface formed on one of the visible edges, and the base end portion of the inner surface of the extension portion abuts against or is close to the side end surface of the end visible edge. The door frame structure according to either claim 1 or 2.

4. A frame structure for a door body assembled in a perimeter from horizontal frames and vertical frames, The aforementioned horizontal frame comprises a face surface and a pair of facing edges, The aforementioned vertical frame comprises a front surface and a pair of front edges, The ends of the horizontal frame and the ends of the vertical frame are joined together. An extension is formed on one of the visible edges of one end. A notch is formed on one visible edge of the other end to receive the extension, and an end-depth edge is formed adjacent to the notch on the other end. With the extension of one end receiving the notch of the other end, the inner surface of the extension is close to or in contact with the side end surface of the end's projection edge. The aforementioned frame structure includes an intermediate vertical frame, The aforementioned intermediate vertical frame comprises a face surface and a pair of visible edges, with an upper extension formed at the upper end of one of the visible edges and a lower extension formed at the lower end. An intermediate notch is formed in one of the visible edges of the upper and lower frames, which are the aforementioned horizontal frames. The upper extension is received in the intermediate notch of the upper frame, and the lower extension is received in the intermediate notch of the lower frame. The frame structure of the door body.

5. A frame structure for a door body assembled in a perimeter from horizontal frames and vertical frames, The aforementioned horizontal frame comprises a face surface and a pair of facing edges, The aforementioned vertical frame comprises a front surface and a pair of front edges, The ends of the horizontal frame and the ends of the vertical frame are joined together. An extension is formed on one of the visible edges of one end. A notch is formed on one visible edge of the other end to receive the extension, and an end-depth edge is formed adjacent to the notch on the other end. With the extension of one end receiving the notch of the other end, the inner surface of the extension is close to or in contact with the side end surface of the end's projection edge. The aforementioned frame structure includes an intermediate horizontal frame, The aforementioned intermediate horizontal frame comprises a front surface and a pair of visible edges, with lateral extensions formed at both ends of one of the visible edges in the longitudinal direction. An intermediate notch is formed on one of the visible edges of each vertical frame. One lateral extension is received in an intermediate notch of one vertical frame, and the other lateral extension is received in an intermediate notch of the other vertical frame. The frame structure of the door body.

Images