Door body and method for assembling door body

Abstract

To provide an assembly method of a door body allowing a window frame member 7 in a four-side peripheral frame shape placed in a door body 1 to be easily assembled so as to prevent strength loss by keeping flatness upon assembling first and second frame members 8 and 9 in a vertical direction and a lateral direction.SOLUTION: An assembly method comprises steps of: forming notched parts 8d and 9d in one leg parts 8b and 9b of first and second frame members 8 and 9; forming notched groove parts 8e and 9e in respective saddle piece parts 8a and 9a; and assembling the first and second frame members 8 and 9 to each other for the window frame member 7 in a state in which the other leg parts 8c and 9c are placed on the notched parts 8d and 9d, respectively, and the saddle piece parts 8a and 9a are positioned on the notched groove parts to form the window frame member 7.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to the technical field of a door body of a sliding door system that opens and closes in the left - right direction, a door body of a hinged door system that opens and closes in the front - rear direction, and a method for assembling a door body.

Background Art

[0002] Generally, as a door body (door, door leaf) for opening and closing the entrance of a building, there are those of a sliding door system that opens and closes in the left - right direction and a hinged door system that opens and closes in the front - rear direction. When forming such a door body, in order to maintain strength, a structure is known in which members assembled in a state where vertical and horizontal frame members are framed are arranged inside the door body (for example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the conventional structure, vertical and horizontal frame members were framed by fitting portions where engagement grooves corresponding to the plate thickness of the frame members were formed. However, since the frame members are flat plates, when the front and back plates and the members are adhered, the adhesion area with the members is small, and it is difficult to make it strong enough. These are the problems to be solved by the present invention.

Means for Solving the Problems

[0005] The present invention was created for the purpose of solving these problems in view of the above circumstances. The invention according to claim 1 comprises front and rear front and back panels, a door frame surrounding the four sides, and a frame assembly material arranged within the door frame and formed by orthogonally incorporating first and second frame members in the vertical and horizontal directions. In a door body constituted by fixing the front and back panels, the door frame, and the frame assembly material, the first and second frame members have a cross-piece portion facing the prospective direction before and after the door body, and front and rear first and second leg-piece portions extending in the finding direction from both front and rear edge portions of the cross-piece portion, having a U-shaped cross-section. The first frame member has a first notch piece portion formed in the first leg-piece portion, and a first notch groove portion formed in the cross-piece portion in a state continuous from the first notch piece portion. The second frame member has a second notch piece portion formed in the second leg-piece portion, and a second notch groove portion formed in the cross-piece portion in a state continuous from the second notch piece portion. The frame assembly material is such that the second leg-piece portion of the second frame member is positioned in the first notch piece portion, the cross-piece portion of the second frame member is positioned in the first notch groove portion, while the second leg-piece portion of the first frame member is positioned in the second notch piece portion, and the cross-piece portion of the first frame member is positioned in the second notch groove portion, and the first and second frame members are assembled together. It is a door body characterized by this. The invention according to claim 2 is the door body according to claim 1, characterized in that the first leg-piece portions of the first and second frame members that have become the frame assembly material and the second leg-piece portions are flush-mounted by setting the first and second notch grooves to a length of 1 / 2 or more of the width in the prospective direction of the cross-piece portion into which they are inserted. The invention according to claim 3 is the door body according to claim 1 or 2, characterized in that the frame assembly material includes a portion where the edge portions of the first and second frame members are assembled in a right-angled corner shape. The invention according to claim 4 is the door body according to any one of claims 1 to 3, characterized in that the frame assembly material is a square frame material in which the edge portions of a pair of first and second frame members are assembled in a right-angled corner shape. The invention according to claim 5 is the door body according to any one of claims 1 to 4, characterized in that the edge portion on the side opposite to the edge portion on which the first and second notch grooves are formed becomes the edge portions of the first and second frame members. The invention according to claim 6 is the door body according to claim 5, characterized in that the lengths from one edge where the first and second notch groove portions of the first and second notch pieces are formed to the other edge without the notch groove portion are set to be substantially the same as the extension lengths of the corresponding first and second leg pieces, so that the corner ends of the square frame material are aligned in a substantially continuous manner. The invention according to claim 7 is the door body according to claim 5 or 6, characterized in that the square frame material is a window frame material arranged within the door frame. The invention according to claim 8 is the door body according to claim 1 or 2, characterized in that the frame assembly material is one in which the first and second frame materials are incorporated in a vertically and horizontally intersecting manner at an intermediate portion, and at least one set of the first and second notch pieces and the first and second notch groove portions are formed at the intermediate portion of the first and second frame materials. The invention according to claim 9 is the door body according to claim 8, characterized in that the frame assembly material is a reinforcing member arranged within the door frame material. The invention according to claim 10 is a door body comprising front and rear front and back panels, a door frame surrounding the four sides, and a frame assembly member disposed within the door frame and formed by orthogonally incorporating first and second frame members in the vertical and horizontal directions. In the first and second frame members, a cross-piece portion facing the prospective direction of the front and rear of the door body and front and rear first and second leg-piece portions extending in the finding direction from both front and rear edge portions of the cross-piece portion are present, and the cross-section is U-shaped. In the first frame member, a first notch piece portion is formed in the first leg-piece portion, and a first notch groove portion is formed in the cross-piece portion in a state continuous from the first notch piece portion. In the second frame member, a second notch piece portion is formed in the second leg-piece portion, and a second notch groove portion is formed in the cross-piece portion in a state continuous from the second notch piece portion. Among the assembly methods for assembling the door body, a method of assembling the first and second frame members and fixing them to the front and back panels, the method includes a step of fixing the second leg-piece portion of one of the first and second frame members facing the inner surface of one of the front and back panels to the inner surface of one of the front and back panels; a step of assembling the frame members together with the notch groove portions of the other frame member aligned with the notch groove portion of the fixed one frame member to form a frame assembly member, and fixing the first leg-piece portion of the other frame member to one panel; a step of covering the other panel and fixing the first leg-piece portion of one frame member and the second leg-piece portion of the other frame member formed in the frame assembly member to the inner surface of the other panel. It is a door body assembly method characterized in that these steps are sequentially executed.

Effect of the Invention

[0006] By making the invention of claims 1 and 10, when assembling the intersecting frame assembly members using the first and second frame members, each frame member has a U-shaped cross-section but has a narrow first and second notch groove portions formed by notching in the cross-piece portion, and as long as the mating leg-piece portion fits in, the strength reduction of the frame member can be reduced. On the other hand, wide first and second leg-piece portions are fixed to the front and back panels, resulting in an increase in strength. As a result, the door body with the frame assembly member disposed inside can be easily assembled. By making the invention of claim 2, the notch groove portions into which the cross pieces are incorporated are set to a length of 1 / 2 or more of the cross pieces. As a result, the leg pieces of the first and second frame members located on the same side before and after can be made substantially flush, avoiding uneven adhesion to the front and back surface members as in the case of a stepped shape, and a door body excellent in strength and smoothness can be obtained. By making the invention of claim 3, a frame assembly member with a right-angled corner-shaped intersection can be easily formed. By making the invention of claim 4, a frame assembly member in a square frame shape can be easily formed. By making the invention of claim 5, the edge portion on the side opposite to the side where the first and second notch grooves are formed becomes the edge portions of the first and second frame members, and a frame assembly member with a right-angled corner shape can be surely formed. By making the invention of claim 6, as a result, the corner ends of the frame assembly member formed in a square frame shape are aligned in a substantially continuous manner, so that the adhesion to the front and back panels is uniform and orderly, and a door body excellent in appearance can be provided. By making the invention of claim 7, a window frame member in a square frame shape can be easily formed. By making the invention of claim 8, a frame assembly member in which the intermediate portions are incorporated in a crossed manner and the adhesion of the front and back panels is also ensured can be easily formed. By making the invention of claim 9, a member in which the intermediate portions are incorporated in a crossed manner can be easily formed.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0008] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, 1 is a door body. The door body 1 is of an upper-hung sliding door type that opens and closes the entrance E by moving left and right while being suspended by a hanger rail 2 provided at the upper part of the entrance E by a hanger roller 1a provided at the upper edge of the door body 1. The door body 1 includes a front and rear panel 3, a vertical and horizontal lattice-shaped aggregate 5 incorporated in vertical and horizontal door frames (not shown) provided to surround the four sides of the upper, lower, left, and right, and a filling material (not shown) interposed in the gaps formed thereby. Further, the door body 1 of the present embodiment is provided with a window portion 6 in which a window glass 6a is incorporated, and a window frame material 7 for edging the window portion 6 is configured to be incorporated in a part on the upper end side in the left-right direction of the door body 1. In the figure, T is a door pocket. Incidentally, the window frame member 7 has a square shape, and a frame member 6b having a concave groove cross-section is provided on its inner surface. The frame member 6b is configured such that one edge member 6c on one side in the front-rear direction is detachable so that the window glass 6a can be attached. Regarding the window portion 6, various installation configurations such as its size, arrangement position, and number are not particularly limited to those of the present embodiment, and can be appropriately changed and implemented as necessary. Needless to say, it can also be implemented without a filling material installed inside the door body 1. Further, regarding the frame members 5 described later, the number of vertical and horizontal frame members 10 and 11 can be set to appropriate ones as necessary. In the present embodiment, a plurality of vertical frame members 10 and a plurality of horizontal frame members 11 are provided, but it is not limited to this. Needless to say, the frame members 5 can be formed with an appropriate number of one or more for the number of vertical and horizontal frame members 10 and 11.

[0009] The window frame member 7 is composed of a pair of vertical frame members (corresponding to the "first frame member" or "second frame member" of the present invention) 8 and a pair of horizontal frame members (corresponding to the "second frame member" or "first frame member" of the present invention) 9, and the corresponding edge portions of the vertical and horizontal frame members 8 and 9 are assembled into a square frame member in a right-angle corner shape. The vertical and horizontal frame members 8 and 9 both have a C-shaped cross-section with the same shape, and have a cross-piece portion 8a, 9a whose plate surface faces the prospective direction (front-rear direction, thickness direction of the door body 1), and first and second leg piece portions 8b, 8c, 9b, 9c extending from both front and rear edge portions of the cross-piece portion 8a, 9a with the same length to face the finding direction (left-right direction). The outer surfaces of the first and second leg piece portions 8b, 8c, 9b, 9c are fixed (adhered) to the front and back plate surfaces 3 via an adhesion means (such as an adhesive or a double-sided adhesive tape) not shown in the figure. Incidentally, as the adhesion means, those provided on the first and second leg piece portions 8b, 8c, 9b, 9c side, those provided on the inner surface side of the front and back plate surfaces 3, and those provided on both sides can be adhered to each other in a facing manner, and an appropriate one can be selected as necessary regarding which of these to adopt. Also, regarding the first and second leg piece portions 8b, 8c, 9b, and 9c, when the door body is placed on a plane, those fixed to the upper front and back panels 3 are defined as the first leg piece portions 8b and 9b for convenience of explanation, and those fixed to the lower front and back panels are defined as the second leg piece portions 8c and 9c. However, the present invention is not limited thereto.

[0010] On the other hand, the member 5 is configured using vertical and horizontal frame members 10 and 11, with the intermediate portions formed in a frame structure where they intersect at right angles. The vertical and horizontal frame members 10 and 11 also have the same U-shaped cross-section as the vertical and horizontal frame members 8 and 9 of the window frame member 7, and include cross-piece portions 10a and 11a, and front and rear first and second leg piece portions 10b, 10c, 11b, and 11c. The first and second leg piece portions 10b, 10c, 11b, and 11c are adhered to the front and back panels 3.

[0011] First, the incorporation structure of the window frame member 7 will be described. Regarding the pair of vertical and horizontal frame members 8 and 9 that constitute the window frame member 7, hereinafter, the vertical frame member 8 will be described as the first frame member 8, and the horizontal frame member 9 will be described as the second frame member 9. However, this is for convenience, and it goes without saying that it would be equally acceptable to reverse the terms. Since the window frame member 7 of the present embodiment has a square shape, the first and second frame members 8 and 9 have the same length. If the window frame member 7 has a rectangular shape, the lengths will naturally be different. However, the right-angle corner-shaped incorporation structure will be the same regardless of the lengths of the first and second frame members 8 and 9. Also, as the window frame member 7, the cross-piece portions 8a and 9a are located inside the window portion 6 (the side closer to the window glass 6a), and the first and second frame members 8 and 9 are assembled in a state where the distal ends of the leg piece portions 8b, 8c, 9b, and 9c are located outside the window portion 6 (the side farther from the window glass 6a).

[0012] Next, the first frame member 8 will be specifically described with reference to FIGS. 5 and 6. As described above, the first frame member 8 has a U-shaped cross-section including a first cross-piece portion 8a and first and second leg-piece portions 8b and 8c. At both edge portions of the first leg-piece portion 8b (the upper and lower edge portions when incorporated into the door body 1 as the window frame member 7), a length Y corresponding to the extension length of the second leg-piece portion 9c in the second frame member 9 (specifically, the length from the second cross-piece portion 9a to the leading edge of the second leg-piece portion 9c in the second frame member 9) X (X = Y) is cut out from the edge portion 8f of the first leg-piece portion 8b. With such a configuration, the first leg-piece portion 8b has a first cut-out piece portion 8d with both edge portions being cut-out edge portions 8h. Furthermore, a first cut-out groove portion 8e is formed in the first cross-piece portion 8a of the first frame member 8 extending from the cut-out edge portion 8h of the first cut-out piece portion 8d toward the second leg-piece portion 8c. In this case, the groove length of the first cut-out groove portion 8e is set to be at least 1 / 2 of the width of the first cross-piece portion 8a (specifically, the length from the first leg-piece portion 8b to the second leg-piece portion 8c in the first cross-piece portion 8a). Incidentally, hereinafter, when referring to each part of the first and second frame members 8 and 9, such as "the first leg-piece portion 8b of the first frame member 8", an abbreviated notation will be used as "the first frame member first leg-piece portion 8b".

[0013] On the other hand, the second frame member 9 also has the same configuration as the first frame member 8. As shown in FIG. 6, a second cross-piece portion 9a, a first leg-piece portion 9b, a second leg-piece portion 9c, a second cut-out piece portion 9d, a second cut-out groove portion 9e, edge portions 9g of the first and second leg-piece portions 9b and 9c, and a cut-out edge portion 9h of the second cut-out groove portion 9e are formed. These are formed symmetrically up and down when placed in a planar manner with the first frame member 8. In the second frame member 9, the portion where the second cut-out piece portion 9d is formed is the lower first leg-piece portion 9b in the drawing, and the second cut-out groove portion 9e is formed from the cut-out edge portion 9h of the second cut-out piece portion 9d formed in the lower first leg-piece portion 9b toward the upper second leg-piece portion 9c. In this case, the first and second notch grooves 8e and 9e are formed in a state of continuing from the inner edge portions of the first and second notch pieces 8d and 9d, in other words, the notch edge portions 8h and 9h of the first leg pieces 8b and 9b. However, the notch edge portions 8h and 9h where the first and second notch grooves 8e and 9e are formed are such that when the edge portions of the first and second frame members 8 and 9 are combined in a crossed (orthogonal) state, the first frame member notch edge portion 8h abuts or is in close proximity to the bending corner portion between the second leg piece 9c of the second frame member second cross-piece 9a, and the second frame member notch edge portion 9h abuts or is in close proximity to the bending corner portion between the second leg piece 8c of the first frame member first cross-piece 8a. By being configured in this way, it is configured so that the high shape maintaining function of the window frame member 7 is exhibited. Incidentally, for example, in FIG. 6, there are descriptions of "upper side", "lower side", "left side", and "right side", but this is intended to indicate the vertical and horizontal directions when the door body 1 is installed at the entrance portion E, and is not intended to indicate the direction when placed flat during the assembly of the door body 1.

[0014] And by being configured in this way, in the state where the vertical and horizontal frame members 8 and 9 are combined to assemble the window frame member 7, the first leg piece 8b of the first frame member and the second leg piece 9c of the second frame member are substantially flush, and the first leg piece 9b of the second frame member and the second leg piece 8c of the first frame member are on the front and rear surfaces that are substantially flush and are fixed to the front and rear plates 3. Furthermore, in the state where the window frame member 7 is incorporated, the edge portions 8f of the first cross-piece 8a and the second leg piece 8c of the first frame member and the edge portions 9g of the first and second leg pieces 9b and 9c of the second frame member are in a continuous state of a flush grid-like edge state and become the upper and lower edges of the corner end portion of the window frame member 7, while the edge portions 9f of the second cross-piece 9a and the second leg piece 9c of the second frame member and the edge portions 8g of the first and second leg pieces 8b and 8c of the first frame member are continuously in a flush grid-like edge state and are configured to become the left and right edges of the corner end portion of the window frame member 7.

[0015] The window frame member 7 formed using the first and second frame members 8 and 9 formed in this manner will be assembled between the front and back members 3. For this, on a horizontal workbench (a mounting table for assembly processing, not shown) in a factory, the first and second frame members 8 and 9 are placed at predetermined positions that are dimensionally set in advance on the inner surface (upper surface) of one of the front and back plates 3 of the placed front and back plates 3, and the window frame member 7 will be incorporated. Hereinafter, the method will be described. Incidentally, the door body 1 will be assembled on the workbench. Here, since the details of the entire assembly process of the door body 1 are already known, they will be omitted, and the process of assembling the window frame member 7 necessary for implementing the present invention will be described in detail here. Incidentally, in the present embodiment, for convenience, the vertical frame member is described as the first frame member 8 (corresponding to "one frame member" of the present invention), and the horizontal frame member is described as the second frame member 9 (corresponding to "the other frame member" of the present invention). However, when assembling the window frame member 7, it goes without saying that the first frame member 8 may be used as the horizontal frame member and the second frame member 9 may be used as the vertical frame member to assemble the window frame member 7.

[0016] To assemble the window frame member 7, first, as shown in Fig. 7(A), on the inner surface of one of the plates 3 placed on the workbench, a pair of first frame members 8 are placed and fixed (adhered) at predetermined positions set in advance with the first cross-piece portions 8a facing each other inward and the second leg pieces 8c facing downward. Next, when a pair of the second frame members 9 are lowered at a predetermined dimension position with the second cross-piece portions 9a facing each other inward and the first leg pieces 9b facing downward, which is the opposite of the case of the first frame member 8, from the state where the first and second notch grooves 8e and 9e are aligned, the second cross-piece portion 9a fits into the first notch groove 8e, and the first cross-piece portion 8a fits into the second notch groove 9e (see Fig. 7(B)). When further pressing down the second frame member 9, with respect to the first frame member 8, the insertion of the second straddling piece portion 9a of the second frame member into the first notch groove portion 8e progresses, and the first leg piece portion 9b of the second frame member abuts against the inner surface of the one front and back plate 3, and thus the first leg piece portion 9b of the second frame member and the one front and back plate 3 are fixed (adhered). In this way, the window frame member 7 is assembled, and the lower first leg piece portion 9b of the second frame member is fixed to the one front and back plate 3 (see Fig. 7(C)).

[0017] Next, after incorporating necessary members such as the reinforcing member 5 and the filler to be described later, the other front and back plate 3 is covered from above, and it is set such that the other front and back plate is fixed (adhered) to the first leg piece portion 8b of the first frame member and the second leg piece portion 9c of the second frame member. In this case, as described above, the first and second notch pieces 8d, 9d are formed with a length Y corresponding to the extension length X of the corresponding second leg piece portions 9c, 8c, and the notch grooves 8e, 9e are set to be at least 1 / 2 of the width of the corresponding straddling pieces 8a, 9a. As a result, the corresponding leg piece portions 8b, 9c and 8c, 9b of the first and second frame members 8, 9 are flush with each other, and the edge portions 8f, 9g and 8g, 9f at the corner ends of the first and second frame members 8, 9 are flush with each other, and the window frame member 7 is fixed to the front and back plates 3.

[0018] On the other hand, the reinforcing member 5 is also formed into a framework using the vertical and horizontal first and second frame members 10, 11, similar to the window frame member 7. In this case, the first and second frame members 10, 11 are assembled such that their intermediate portions intersect vertically and horizontally (at right angles). Except for this difference from the window frame member 7 whose edge portions are assembled in a right-angle corner shape, they are the same. Therefore, they are shown in Figs. 8 to 10 as drawings, and detailed descriptions of each are omitted. Further, among the reference signs attached to the respective parts of the first and second frame members 10 and 11, the reference signs of alphabets such as "a" and "b" are defined as those attached with the same alphabetical signs as in the case of the first and second frame members 8 and 9 for the window frame member 7 described above, and the description of the details thereof will be omitted except when particularly necessary.

[0019] In the present embodiment configured as described above, in the door body 1 composed of the front and back surface members 3 and the door frame, the window frame member 7 and the frame member 5, which are frame assembly members incorporated and formed using the vertical and horizontal first and second frame members 8, 9 or 10, 11, are disposed, and when these window frame member 7 and frame member 5 are fixed to the front and back surface plates 3 together with the door frame, the first and second frame members 8, 9 or 10, 11 have a U-shaped cross section, and have a spanning piece portion 8a, 9a or 10a, 11a facing the prospective direction of the door body 1 and first and second leg piece portions 8b, 8c, 9b, 9c or 10b, 10c, 11b, 11c in the front and rear. And for the first frame member 8 or 10, a first notch piece portion 8d or 10d is formed in the first leg piece portion 8b or 10b, and a first notch groove portion 8e or 10e is formed in the first spanning piece portion 8a or 10a. On the other hand, for the second frame member 9 or 11, a second notch piece portion 9d or 11d is formed in the first leg piece portion 9b or 11b, and a second notch groove portion 9e or 11e is formed in the second spanning piece portion 9a or 11a.

[0020] And as the window frame member 7 and the frame member 5 which are frame assembly members, the second leg piece portion 9c or 11c of the second frame member is located in the first notch piece portion 8d or 10d, and the second spanning piece portion 9a or 11a of the second frame member is located in the first notch groove portion 8e or 10e. On the other hand, the second leg piece portion 8c or 11c of the first frame member is located in the second notch piece portion 9d or 11d, and the first spanning piece portion 8a or 10a of the first frame member is located in the second notch groove portion 9e or 11e, and the first and second frame members 8, 9 or 10, 11 are assembled together. As a result, for each of the frame members 8, 9 or 10, 11, the first and second notch grooves 8e, 9e or 10e, 11e formed in the cross-piece portions 8a, 9a or 10a, 11a may have a narrow width that allows the cross-piece portions 9a, 8a or 11a, 10a on the other side to be inserted. Thus, while reducing the strength reduction that would occur if the frame members 8, 9 or 10, 11 were made wide, wide first and second leg pieces 8b, 8c, 9b, 9c or 10b, 10c, 11b, 11c are fixed to the front and back plates 3, enabling an increase in strength. As a result, a door body 1 with excellent strength, in which window frame members 7 and framing members 5 as frame assembly members are disposed inside, can be easily assembled.

[0021] Moreover, in this case, the first leg pieces 8b, 9b or 10b, 11b of the first and second frame members 8, 9 or 10, 11 and the second leg pieces 8c, 9c or 10c, 11c are flush-mounted because the first and second notch grooves are set to a length of at least half the width of the cross-piece portion to be inserted in the expected direction. Thus, the leg pieces 8b and 9c, 8c and 9b or 10b and 11c, 10c and 11b of the first and second frame members 8, 9 or 10, 11 located on the same side in the front-rear direction can be made substantially flush, avoiding uneven adhesion to the front and back materials as in the case of a stepped shape, and enabling a door body 1 with excellent strength and smoothness.

[0022] As a frame assembly member, in the case of a square frame member such as the window frame member 7 where the edge portions 8f, 9f of the first and second frame members 8, 9 are assembled in a right-angle corner shape, when referring to FIG. 7, at each right-angle corner end of the window frame member 7, the second leg piece 9c of the second frame member becomes the front surface (the upper surface in the state of being placed flat), and the second leg piece 8c of the first frame member becomes the back surface (the lower surface in the state of being placed flat), and as a result, they are fixed to the front and back plates 3. Thus, at each right-angle corner end, the first and second frame members 8, 9 are fixed to the front and back plates 3 in the front and back directions, maintaining the strength as a square frame member. Moreover, as the window frame member 7 that forms a square frame member, at each right-angle corner end, the notch edge portions 8h, 9h of the first leg pieces 8b, 9b are assembled in a state of abutting (or being closely opposed) against the front and rear edges (the bending corner portions with the second leg pieces 8c, 9c) of the second and first cross pieces 9a, 8a, so that the shape of the square frame is maintained. Furthermore, in this case, the lengths Y of the first and second notch pieces 8d, 9d, that is, the lengths from one edge portion formed as the first and second notch grooves 8e, 9e to the other edge portion where the notch grooves 8e, 9e are not formed, are set to be approximately the same dimension as the extension lengths (leg lengths) X of the corresponding first and second leg pieces 8b, 8c, 9b, 9c. As a result, the corner ends of the window frame member 7 are assembled into a substantially continuous and aligned linear state. Consequently, the linearity (planarity) at the corner end portions of the window frame member 7 to which the front and back plates 3 are fixed is not impaired, and when the door body 1 is formed, the corner portions are prevented from being accidentally stepped. For example, in a case where a filler is provided inside the door body 1, the incorporation of the filler is not obstructed.

[0023] And such a situation can also be applied to the frame members 5 in which the first and second frame members 10, 11 are incorporated in a vertically and horizontally intersecting manner at the intermediate portion. In this case, although the frame members 5 of the present embodiment are formed in an intersecting shape using a plurality of vertical frame members 10 and horizontal frame members 11, as described above, it goes without saying that the number of the vertical and horizontal frame members 10, 11 can be appropriately set to one or more as necessary. When the first and second frame members 10 and 11 in the vertical and horizontal directions are assembled to form the frame member 5, first and second notch pieces 10d and 11d are formed at the intermediate portions of the first and second leg pieces 10b and 11b. As a result, notch edge portions 10h, 10h, 11h, and 11h are formed on both sides of the first and second notch pieces 10d and 11d. These notch edge portions 10h, 10h, 11h, and 11h are in a fitting state where they respectively abut (or are closely opposed) to the bending corner portions of the second and first cross pieces 11a and 10a and the second leg pieces 10c and 11c, and the edge portions 10g and 11g of the second leg pieces 10c and 11c. As a result, the frame member 5 can surely maintain its shape in the crossed posture even in a state where it is simply assembled in a crossed manner, and it is possible to avoid accidentally shifting in position.

[0024] Furthermore, in implementing the present invention, as a method for assembling the door body 1 as described above, the first and second frame members 8, 9 or 10, 11 are assembled as the window frame member 7 or the frame member 5, and these are fixed to the front and back plates 3. As a method for implementing this step, · A step of fixing the second leg pieces 8c, 10c, which are the lower side surfaces of the first frame members 8, 10, to the inner surface of one of the front and back plates 3; · With the second leg pieces 9c or 11c and the second cross pieces 9a or 11a of the second frame members 9 or 11 positioned vertically (correspondingly) in the first notch pieces 8d or 10d and the notch groove portions 8e or 10e of the fixed first frame members 8, 10, the first and second frame members 8, 9 or 10, 11 are assembled in the vertical direction to form the window frame member 7 or the frame member 5, and a step of fixing the first leg pieces 9b, 11b, which are the lower side surfaces of the second frame members 9, 11, to one of the front and back plates 3; · A step of covering the other front and back plate 3 and fixing the first leg pieces 8b or 10b of the first frame member, which are the upper side surfaces, and the second leg pieces 9c or 11c of the second frame member to the inner surface of the other front and back plate 3; By sequentially executing the above steps, it becomes possible to easily form the door body 1 in a state where the window frame member 7 and the frame member 5 are fixed to the upper and lower front and back plates 3. When incorporating the frame member 5 into one of the front and back plates 3, it is not limited to the above-described assembly method. For example, a molded product integrally formed by pre-welding the intersections of the framed parts or the like may be incorporated into one of the front and back plates 3. Needless to say, the method of incorporating the pre-integrally formed product can also be implemented for the window frame member 7.

Industrial Applicability

[0025] The present invention can be used as a sliding door body that opens and closes in the left-right direction, a hinged door body that opens and closes in the front-rear direction, and an assembly method of the door body.

Explanation of Signs

[0026] 1 Door body 3 Front and back plates 4 Door frame 5 Frame member 6 Window part 7 Window frame member 8 First frame member 8a First cross-piece part 8b First leg piece part 8c Second leg piece part 8d First notch piece part 8e First notch groove part 9 Second frame member 9a Second cross-piece part 9b First leg piece part 9c Second leg piece part 9d Second notch piece part 9e Second notch groove part 10 First frame member 10a First cross-piece part 10b First leg piece part 10c Second leg piece part 10d First notch piece part 10e First notch groove part 11 Second frame member 11a Second cross-piece part 11b First leg piece part 11c Second leg piece part 11d Second notch piece part 11e Second notch groove part E Entrance / exit part

Claims

1. A door body comprising front and rear front and back panels, a door frame surrounding the four sides, and a frame assembly material arranged within the door frame and formed by orthogonally assembling first and second frame members in the vertical and horizontal directions, wherein the front and back panels, the door frame, and the frame assembly material are fixed together. The first and second frame members have a cross-sectional U-shape with a cross-piece portion facing the prospective direction of the front and rear of the door body, and front and rear first and second leg-piece portions extending in the finding direction from both front and rear edge portions of the cross-piece portion. The first frame member has a first notch piece portion formed on the first leg-piece portion, and a first notch groove portion formed on the cross-piece portion in a state continuous with the first notch piece portion. The second frame member has a second notch piece portion formed on the second leg-piece portion, and a second notch groove portion formed on the cross-piece portion in a state continuous with the second notch piece portion. The frame assembly material is characterized in that the second leg-piece portion of the second frame member is positioned in the first notch piece portion, the cross-piece portion of the second frame member is positioned in the first notch groove portion, while the second leg-piece portion of the first frame member is positioned in the second notch piece portion, and the cross-piece portion of the first frame member is positioned in the second notch groove portion, and the first and second frame members are assembled together.

2. The door body according to claim 1, wherein the first leg-piece portions of the first and second frame members that form the frame assembly material and the second leg-piece portions are flush-mounted by setting the first and second notch groove portions to a length of at least 1 / 2 of the width in the prospective direction of the cross-piece portion to be inserted.

3. The door body according to claim 1 or 2, wherein the frame assembly material includes a portion where the edge portions of the first and second frame members are assembled in a right-angle corner shape.

4. The door body according to any one of claims 1 to 3, wherein the frame assembly material is a square frame material in which the edge portions of a pair of first and second frame members are assembled in a right-angle corner shape.

5. The door body according to any one of claims 1 to 4, wherein the edge portion on the side opposite to the edge portion on which the first and second notch groove portions are formed becomes the edge portion of the first and second frame members.

6. The door body according to claim 5, wherein the length from the one edge portion where the first and second notch groove portions of the first and second notch piece portions are formed to the other edge portion without the notch groove portion is set to be substantially the same dimension as the extension length of the corresponding first and second leg-piece portions, so that the corner ends of the square frame material are aligned in a substantially continuous manner.

7. The door body according to claim 5 or 6, wherein the four-corner frame member is a window frame member arranged within the door frame.

8. The door body according to claim 1 or 2, wherein the frame assembly member is such that the first and second frame members are incorporated in a vertically and horizontally intersecting manner at an intermediate portion, and at least one set each of first and second notch pieces and first and second notch grooves are formed at the intermediate portion of the first and second frame members.

9. The door body according to claim 8, wherein the frame assembly member is a reinforcing member arranged within the door frame member.

10. In a door body configured to include front and rear front and rear panel boards, a door frame surrounding the four sides, and a frame assembly member arranged within the door frame and formed by orthogonally incorporating vertical and horizontal first and second frame members, the first and second frame members have a U-shaped cross-section with a straddle piece portion facing the prospective direction of the front and rear of the door body, and front and rear first and second leg piece portions extending in the finding direction from both front and rear edge portions of the straddle piece portion, the first frame member has a first notch piece formed on the first leg piece portion, and a first notch groove formed on the straddle piece portion in a state continuous from the first notch piece, the second frame member has a second notch piece formed on the second leg piece portion, and a second notch groove formed on the straddle piece portion in a state continuous from the second notch piece, Among the assembling methods for assembling the door body, a method of assembling the first and second frame members and fixing them to the front and rear panel boards, the method includes: - A step of fixing the second leg piece portion of one of the first and second frame members facing the inner surface of one of the front and rear panel boards to the inner surface of one of the front and rear panel boards; - A step of assembling the frame members to form a frame assembly member with the notch grooves of the other frame member aligned with the notch groove of the fixed one of the frame members, and fixing the first leg piece portion of the other frame member to one of the panel boards; - A step of covering the other panel board and fixing the first leg piece portion of one of the frame members and the second leg piece portion of the other frame member formed on the frame assembly member to the inner surface of the other panel board; The assembling method of the door body, characterized in that the steps are sequentially executed.

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