Vertical frame and joint member of vertical frame

Abstract

To provide a long vertical frame for a high door without increasing stock risk and cost.SOLUTION: Vertical frames 2, 3 of a door frame 1 attached on an opening part O of an indoor wall W are configured to be provided with: vertical frame bodies 21, 31 extending in a vertical direction; joint frame bodies 22, 32 extending in the vertical direction, of which outer shapes in a cross section are equal to those of the vertical frame bodies 21, 31; joint members 23, 33 connected the joint frame bodies 22, 32 with lower parts of the vertical frame bodies 21, 31 by fixing each of themselves to lower end parts of the vertical frame bodies 21, 31 and upper end parts of the joint frame bodies 22, 32.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vertical frame of a door frame attached to an opening in a wall of a room, and to a joint member that vertically joins the vertical frame body and the joint frame body that constitute the vertical frame. [Background technology]

[0002] In buildings such as houses, there are cases where fittings (so-called high doors) are used that do not have a drop wall at the opening and open and close the opening that reaches from the floor to the ceiling (see, for example, Patent Document 1 below). When this type of fitting is used, the absence of a drop wall gives the appearance a neater feel, improving the design of the fitting and making the space appear larger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-19468 Summary of the Invention [Problem to be solved by the invention]

[0004] By the way, to use a high door, it is necessary to prepare a long vertical frame that is longer in height than the standard vertical frame used in door frames of ordinary building materials (those that are not high doors installed below a drop wall).

[0005] However, although demand for high doors has been increasing in recent years, their market share is not that high, so preparing long vertical frames for high doors in addition to standard vertical frames poses a high risk of inventory and is therefore not practically desirable.Furthermore, if only long vertical frames for high doors were prepared and then cut to size at the construction site when installing standard building materials, not only would the cost of the standard building materials increase, but the large cut portions would also increase disposal costs.

[0006] The present invention has been made in view of the above points, and its object is to provide a long vertical frame for a high door without increasing inventory risk and cost. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, in the present invention, instead of preparing a long vertical frame for a high door separately from a normal standard vertical frame, a long vertical frame for a high door is constructed by joining a connecting frame body to the bottom of a normal standard vertical frame (vertical frame main body).

[0008] Specifically, the first invention is a vertical door frame attached to an opening in a wall inside a room, characterized in that it comprises a vertical frame main body extending in the vertical direction, a connecting frame body extending in the vertical direction and having the same external cross-sectional shape as the vertical frame main body, and connecting members that are fixed to the lower end of the vertical frame main body and the upper end of the connecting frame body, respectively, thereby joining the connecting frame body to the below of the vertical frame main body.

[0009] In the first invention, a long vertical frame is constructed by joining a connecting frame body to the lower part of the vertical frame body. Therefore, it is not necessary to prepare a long vertical frame for a high door separately from a standard vertical frame. Instead, a standard vertical frame can be used as the vertical frame body, and a connecting frame body can be joined below it to easily construct a long vertical frame for a high door. Therefore, according to the first invention, a long vertical frame for a high door can be provided without increasing inventory risk and costs.

[0010] In addition, the second invention is characterized in that, in the first invention, the joint member has a front-to-rear positioning portion that abuts against the front or rear surface of the lower end of the vertical frame main body and against the front or rear surface of the upper end of the joint frame body, thereby aligning the front-to-rear positions of the vertical frame main body and the joint frame body.

[0011] However, in the above-described vertical joint configuration, the vertical frame body and the extension frame body must be joined together without misalignment, making the construction process complicated. In particular, aligning the vertical frame body and the extension frame body in the front-to-back direction (the forward direction) is more difficult than aligning their left-to-right direction (the forward direction). Specifically, the vertical frame is fixed to the flat opening end surface of the wall (the opening side surface of a pillar or a spacer attached to the pillar) while abutting against it, so the wall side surface (outer surface) of the vertical frame is configured as a flat surface so as to abut against the flat opening end surface of the wall. Therefore, at the construction site, the left-to-right alignment of the two components can be achieved simply by abutting the wall side surfaces of the vertical frame body and the extension frame body against a flat floor surface. However, the front and rear surfaces of the vertical frame are narrower than the wall side surfaces. Therefore, it is difficult to align the front and rear surfaces of the vertical frame body and the extension frame body in the front-to-back direction by abutting the front or rear surface of the vertical frame body and the extension frame body against the floor surface at the construction site.

[0012] Therefore, in the second invention, a joint member for joining a connecting frame body below a vertical frame body is provided with a front-to-rear positioning portion that aligns the front-to-rear positions of the vertical frame body and the connecting frame body. The front-to-rear positioning portion is configured to align the front-to-rear positions of the vertical frame body and the connecting frame body by abutting against the front or rear surface of the lower end of the vertical frame body and the front or rear surface of the upper end of the connecting frame body. Therefore, the front-to-rear positions of the vertical frame body and the connecting frame body can be easily aligned simply by abutting the lower end of the vertical frame body and the front or rear surface of the upper end of the connecting frame body against the front-to-rear positioning portion. Therefore, according to the second invention, the connecting frame body can be vertically joined below the vertical frame body easily without misalignment.

[0013] In addition, the third invention is characterized in that, in the second invention, the joint member has a left-right positioning portion that abuts against the opening side of the lower end of the vertical frame main body and against the opening side of the upper end of the joint frame body, thereby aligning the left-right positions of the vertical frame main body and the joint frame body.

[0014] In the third invention, the joint member is provided with left-right positioning portions that align the left-right positions of the vertical frame main body and the connecting frame body. The left-right positioning portions are configured to align the left-right positions of the vertical frame main body and the connecting frame body by abutting against the open side surfaces of the lower end of the vertical frame main body and the upper end of the connecting frame body. Therefore, the left-right positions of the vertical frame main body and the connecting frame body can be easily aligned simply by abutting the open side surfaces of the lower end of the vertical frame main body and the upper end of the connecting frame body against the left-right positioning portions. Therefore, according to the third invention, the connecting frame body can be easily vertically joined below the vertical frame main body without misalignment.

[0015] The fourth invention is the second invention, wherein the joint member has a plate-shaped base portion having an outer shape of a cross section equal to that of the vertical frame main body, sandwiched between the vertical frame main body and the connecting frame body and bonded to both members, the first contact portion protruding upward from at least one of the front and rear sides of the base and contacting the front or rear surface of the lower end of the vertical frame main body, and the second contact portion protruding downward from at least one of the front and rear sides of the base and contacting the front or rear surface of the upper end of the connecting frame body, and the front-rear positioning portion is constituted by the first and second contact portions. It is characterized by the following.

[0016] In a fourth aspect of the present invention, the joint member has a plate-shaped base having an outer cross-sectional shape identical to that of the vertical frame body, and first and second abutment portions that protrude upward and downward, respectively, from at least one of the front and rear sides of the base, and the first and second abutment portions serve as front-rear positioning portions. According to the fourth aspect of the present invention, by using a joint member having a simple configuration in which the plate-shaped base is simply provided with first and second abutment portions, the joint frame body can be easily joined vertically to the lower part of the vertical frame body without misalignment.

[0017] The fifth invention is the third invention, wherein the joint member has a plate-shaped base having an outer shape of cross section equal to that of the vertical frame main body, and sandwiched between the vertical frame main body and the connecting frame body and adhered to both members, a first abutment portion protruding upward from at least one of the front and rear sides of the base and abutting the front or rear surface of the lower end of the vertical frame main body, a second abutment portion protruding downward from at least one of the front and rear sides of the base and abutting the front or rear surface of the upper end of the connecting frame body, a third abutment portion protruding upward from the opening side of the base and abutting the opening side of the lower end of the vertical frame main body, and a fourth abutment portion protruding downward from the opening side of the base and abutting the opening side of the upper end of the connecting frame body, and the front-to-rear positioning portion is constituted by the first and second abutment portions, and the left-to-right positioning portion is constituted by the third and fourth abutment portions.

[0018] In a fifth aspect of the present invention, the joint member has a plate-shaped base having an outer shape of cross section identical to that of the vertical frame body, first and second abutment portions protruding upward and downward, respectively, from at least one of the front and rear sides of the base, and third and fourth abutment portions protruding upward and downward, respectively, from the opening side of the base, the first and second abutment portions serving as front-to-rear positioning portions, and the third and fourth abutment portions serving as left-to-right positioning portions. According to the fifth aspect of the present invention, by using a joint member having a simple configuration in which the first to fourth abutment portions are provided on a plate-shaped base, the joint frame body can be easily joined vertically to the bottom of the vertical frame body without misalignment.

[0019] The sixth invention is characterized in that, in the fifth invention, the first and third abutment portions are integrally formed so as to continuously border the front side, opening side and rear side of the base, and the second and fourth abutment portions are integrally formed so as to continuously border the front side, opening side and rear side of the base.

[0020] In the sixth invention, the first and third abutment portions are integrally formed so as to continuously border the front side, opening side, and rear side of the base, and the second and fourth abutment portions are integrally formed so as to continuously border the front side, opening side, and rear side of the base. With this configuration, the exposed surfaces (front, opening side, and rear) of the lower end of the vertical frame main body and the exposed surfaces (front, opening side, and rear) of the upper end of the joint frame body are covered integrally, not piecemeal, by the first to fourth abutment portions. Therefore, according to the sixth invention, the first to fourth abutment portions add an accent to the design of the vertical frame at the joint portion between the vertical frame main body and the joint frame body, and it is possible to prevent a decrease in design due to the vertical joint between the vertical frame main body and the joint frame body.

[0021] The seventh invention is characterized in that, in the fourth invention, the joint member has a plate-shaped piece portion extending downward from the wall side edge portion of the base, and a groove into which the plate-shaped piece portion fits is formed on the wall side of the connecting frame body, and the plate-shaped piece portion and the groove are configured so that the plate-shaped piece portion fits into the groove when the connecting frame body is joined below the vertical frame main body without any misalignment.

[0022] In the seventh aspect of the present invention, a plate-shaped piece extends downward from the wall edge located on the wall side of the base and is configured to fit into a groove formed in the wall side of the connecting frame body. With this configuration, the connecting member can be easily positioned and fixed in an appropriate position on the connecting frame body simply by fitting the plate-shaped piece of the coupling member into the groove of the connecting frame body. The appropriate position is the position where the coupling member should be positioned relative to the connecting frame body so that the connecting frame body can be joined below the vertical frame main body without misalignment.

[0023] The eighth invention is a vertical door frame attached to an opening in a wall inside a room, comprising a vertical frame main body extending in the vertical direction and a connecting frame body extending in the vertical direction and joined to the lower part of the vertical frame main body, characterized in that the upper end of the connecting frame body is integrally formed with a front-to-rear positioning portion that abuts against the front or rear surface of the lower end of the vertical frame main body, thereby aligning the front-to-rear positions of the vertical frame main body and the connecting frame body.

[0024] In the eighth invention, a long vertical frame is constructed by joining a connecting frame body to the lower part of the vertical frame body. Therefore, it is not necessary to prepare a long vertical frame for a high door separately from a standard vertical frame. Instead, a standard vertical frame is used as the vertical frame body, and a connecting frame body is joined below it, making it easy to construct a long vertical frame for a high door. Therefore, according to the eighth invention, a long vertical frame for a high door can be provided without increasing inventory risk and cost.

[0025] In addition, in the eighth invention, a front-rear positioning portion that aligns the front-rear positions of the vertical frame main body and the connecting frame body is integrally formed at the upper end of the connecting frame body. The front-rear positioning portion is configured to align the front-rear positions of the vertical frame main body and the connecting frame body by abutting against the front or rear surface of the lower end of the vertical frame main body. Therefore, the front-rear positions of the vertical frame main body and the connecting frame body can be easily aligned simply by abutting the front or rear surface of the lower end of the vertical frame main body against the front-rear positioning portion. Therefore, according to the eighth invention, the connecting frame body can be easily vertically joined below the vertical frame main body without misalignment.

[0026] The ninth invention is characterized in that, in the eighth invention, the upper end of the connecting frame body is integrally formed with a left-right positioning portion that abuts against the opening side of the lower end of the vertical frame main body, thereby aligning the left-right positions of the vertical frame main body and the connecting frame body.

[0027] In the ninth invention, a left-right positioning portion is provided at the upper end of the connecting frame body to align the left-right positions of the vertical frame main body and the connecting frame body. The left-right positioning portion is configured to align the left-right positions of the vertical frame main body and the connecting frame body by abutting against the open side of the lower end of the vertical frame main body. Therefore, the left-right positions of the vertical frame main body and the connecting frame body can be easily aligned simply by abutting the open side of the lower end of the vertical frame main body against the left-right positioning portion. Therefore, according to the ninth invention, the connecting frame body can be easily joined below the vertical frame main body without misalignment.

[0028] The tenth invention is characterized in that, in any one of the first to ninth inventions, the vertical frame body is made of a wooden material and the joint frame body is made of a metal material.

[0029] In elderly care facilities and medical facilities, steel door frames are often used to prevent wheelchairs from hitting and damaging the vertical frame of the door frame. However, steel door frames have the problem of being more expensive and less workable than wooden door frames.

[0030] Therefore, in the tenth invention, the vertical frame body is made of a wooden material, and the extension frame body is made of a metal material. With this configuration, the lower part of the vertical frame, which may be hit by a wheelchair, is made of an extension frame body made of a metal material, which increases its strength and makes it less susceptible to damage. Furthermore, by making the vertical frame body out of a wooden material rather than making the entire vertical frame out of a metal material, adjusting the length of the vertical frame at the installation site can be done simply by cutting the vertical frame body made of a wooden material, which makes it easy to process at the installation site.

[0031] The eleventh invention is a joint member for joining a vertical frame body and a joint frame body that constitute the vertical frame of a door frame to be attached to an opening in a wall inside a room, so that the joint frame body is positioned below the vertical frame body, characterized in that the joint member is a joint member according to any one of the fourth to sixth inventions.

[0032] In the eleventh invention, it is possible to easily configure a joint member that can easily join a joint frame body to the bottom of the vertical frame main body without misalignment. Also, when the joint member is the joint member according to the sixth invention, the first to fourth abutment portions exposed at the joint between the vertical frame main body and the joint frame body can add an accent to the design of the vertical frame, so that the vertical frame main body and the joint frame body can be joined vertically without degrading the design of the vertical frame. [Effects of the Invention]

[0033] As explained above, according to the present invention, instead of preparing a long vertical frame for high doors separately from a standard vertical frame at the door end side, a long vertical frame for high doors is constructed by joining a connecting frame body to the bottom of a standard vertical frame (vertical frame main body).Therefore, it is possible to provide a long vertical frame for high doors without increasing inventory risk and costs. [Brief explanation of the drawings]

[0034] [Figure 1] FIG. 1 is a front view of a fitting having a vertical frame according to the first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] 3 is an exploded perspective view of a pair of vertical frames shown in FIG. 1. FIG. [Figure 4] 4 is an enlarged perspective view of the joint member of the vertical frame on the door-end side of FIG. [Figure 5] 5 is an enlarged perspective view of the joint member of the vertical frame on the door trailing edge side of FIG. [Figure 6] FIG. 6 is an exploded perspective view of a vertical frame according to the second embodiment. [Figure 7] FIG. 7 is an exploded perspective view of a vertical frame according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following description of the embodiments is merely exemplary in nature and is not intended to limit the present invention, its applications, or its uses.

[0036] First Embodiment of the Invention -Outline of opening structure- 1 and 2 are diagrams showing an example of a fitting 70 comprising a door frame 1 with vertical frames 2 and 3 according to a first embodiment of the present invention and a door D supported by the door frame 1. FIG. 1 is a front view, and FIG. 2 is a horizontal cross-sectional view. For ease of explanation, the left side, right side, upper side, and lower side of FIG. 1 will be referred to as "left," "right," "upper," and "lower," respectively. Furthermore, the near side in the direction perpendicular to the plane of the paper in FIG. 1 will be referred to as "front," and the far side as "rear."

[0037] As shown in FIGS. 1 and 2 , the wall W is a large-wall structure, and an opening O is provided with left and right pillars A, A provided within the wall W, a lintel (not shown) spanning horizontally between the left and right pillars A, A, and a pair of wall base materials B, B provided in front and behind the left and right pillars A and the lintel. A door frame 1 is provided in the opening O of the wall W to form an entrance to the room. The door frame 1 is provided with a door D that opens and closes the entrance. In this embodiment 1, the door D is configured as a hanging door that is slidably attached to a rail R extending in the left-right direction and opens and closes the entrance formed by the door frame 1. In addition, in this embodiment 1, the rail R is provided on the front side of the wall W and above the ceiling surface C. That is, in this embodiment 1, the rail R is embedded in the ceiling and is configured to be invisible when viewed from the front or back.

[0038] In this first embodiment, as an example of a fixture equipped with a vertical frame according to the present invention, an offset hanging door will be described, in which a rail R is provided on the front side of a wall W and a door D opens and closes an opening O in front of the wall W. Also, in this first embodiment, an example will be described in which the vertical frame according to the present invention is used in the door frame of a high door provided in an opening O that reaches from a floor F without a hanging wall to a ceiling C. Note that the vertical frame and joint member according to the present invention are not limited to the door frame of an offset high door, but may also be used in the door frames of inset or retractable hanging doors or sliding doors, or in the door frames of hinged doors. They may also be used in door frames of standard standards that are not for high doors.

[0039] -Detailed door frame configuration- The door frame 1 is a three-sided gate-shaped frame consisting of a pair of vertical frames 2, 3 and an upper frame 4 connecting the upper ends of the pair of vertical frames 2, 3, and is installed in an opening O in a wall W. Each frame member that makes up the door frame 1 (the pair of vertical frames 2, 3 and the upper frame 4) is covered with a decorative layer (not shown) made of the same material. The decorative layer may be a layer made of a decorative sheet, paint, resin, etc., or it may be veneer.

[0040] The pair of vertical frames 2, 3 is composed of the vertical frame 2 on the door front side of the door D and the vertical frame 3 on the door rear side. The pair of vertical frames 2, 3 are formed with a vertical length that is approximately equal to the height of the opening O. In this embodiment 1, the underside of the lintel and the ceiling surface C are at the same height, so the height of the opening O is approximately equal to the ceiling height. Therefore, the pair of vertical frames 2, 3 are formed with a vertical length that is approximately equal to the ceiling height.

[0041] As shown in FIG. 2 , the vertical frames 2 and 3 have a generally rectangular cross-sectional shape and are formed so that their length in the projection direction is longer than the thickness of the wall W. The vertical frame 2 on the leading edge side has a groove 5 formed at the front end of the opening side (right side) that serves as a door slit groove, extending from the upper end to the lower end. The vertical frame 2 on the leading edge side is formed so that its length in the projection direction is significantly longer than the thickness of the wall W, so that the groove 5 is located forward of the wall W and protrudes significantly forward from the front surface of the wall W. On the other hand, the vertical frame 3 on the trailing edge side is formed so that its length in the projection direction is slightly longer than the thickness of the wall W, so that its front end is located slightly forward of the front surface of the wall W and its rear end is located slightly rearward of the rear surface of the wall W. The vertical frames 2 and 3 are also formed so that the vertical frame 3 on the trailing edge side is shorter in the projection direction than the vertical frame 2 on the leading edge side.

[0042] The upper frame 4 is made of a wooden plate-like member that is rectangular in plan view as shown in Figure 2. The upper frame 4 is assembled to the pair of vertical frames 2, 3 so as to connect the upper ends of the pair of vertical frames 2, 3 (so as to form a vertical joint), and is fixed to the lintel.

[0043] The feature of the present invention resides in the vertical frames 2 and 3 among the frame members 2 to 4 that make up the door frame 1, so the vertical frames 2 and 3 will be described in detail below.

[0044] [Vertical frame] As shown in Figure 3, the vertical frames 2, 3 are formed by joining two vertical frame materials together vertically. In this embodiment 1, the long vertical frames 2, 3 for high doors are formed by joining short extension frame bodies 22, 32 to the bottom of the vertical frame bodies 21, 31 that are of standard specifications (lengths of approximately 1500 to 2100 mm). The length of the extension frame bodies 22, 32 is one-third or less of the length of the vertical frame bodies 21, 31 (lengths of 600 mm or less), and in this embodiment 1, it is 300 mm.

[0045] In this embodiment 1, the vertical frame bodies 21, 31 are made of wood, and the connecting frame bodies 22, 32 are made of metal (e.g., steel). The vertical frame bodies 21, 31 and the connecting frame bodies 22, 32 are vertically joined (joined vertically) via joint members 23, 33. The decorative layer covering the vertical frames 2, 3 is formed so as to cover the exposed surfaces of the vertical frame bodies 21, 31 and the connecting frame bodies 22, 32, but is not formed on the joint members 23, 33.

[0046] The vertical frame bodies 21, 31 and the connecting frame bodies 22, 32 are formed to have the same cross-sectional outer shape. The vertical frame bodies 21, 31 are formed, for example, by chamfering and grooving wooden timber, and are configured as solid members. On the other hand, the connecting frame bodies 22, 32 are formed by bending plate-shaped metal members on all four sides, and are configured as cylindrical members (hollow members).

[0047] 3 to 5, the joint members 23, 33 have base portions 24, 34, upper edging portions 25, 35, and lower edging portions 26, 36. In the first embodiment, the joint members 23, 33 are made of a resin material, and the base portions 24, 34, the upper edging portions 25, 35, and the lower edging portions 26, 36 are integrally formed.

[0048] The bases 24, 34 are thin, flat portions. The cross-sectional outer shape of the bases 24, 34 is formed to be the same as that of the vertical frame bodies 21, 31 and the joint bodies 22, 32. In the present embodiment 1, the bases 24, 34 are formed to have a thickness of about 2 mm.

[0049] The upper edging portions 25, 35 are portions that protrude upward on the front side, opening side, and rear side of the base portions 24, 34. In the present embodiment 1, the upper edging portions 25, 35 are formed to have a thickness of about 2 mm and a height of 3 mm (the protruding height from the upper surface of the base portions 24, 34 is about 2 mm).

[0050] The upper edging portions 25, 35 have front portions 25a, 35a (first contact portion) that border the front edge of the base portions 24, 34, opening-side portions 25b, 35b (third contact portion) that border the opening-side edge of the base portions 24, 34, and rear portions 25c, 35c (first contact portion) that border the rear edge of the base portions 24, 34. In the first embodiment, the upper edging portions 25, 35 are formed such that the front portions 25a, 35a, opening-side portions 25b, 35b, and rear portions 25c, 35c are integrally formed so as to continuously border the front side, opening side, and rear side of the base portions 24, 34.

[0051] The lower edging portions 26, 36 are portions that protrude downward on the front side, opening side, and rear side of the base portions 24, 34. In the present embodiment 1, the lower edging portions 26, 36 are formed to have a thickness of about 2 mm and a height of 3 mm (the protruding height from the lower surface of the base portions 24, 34 is about 2 mm).

[0052] The lower edging portions 26, 36 have front portions 26a, 36a (second contact portion) that border the front edge of the base portions 24, 34, opening-side portions 26b, 36b (fourth contact portion) that border the opening-side edge of the base portions 24, 34, and rear portions 26c, 36c (second contact portion) that border the rear edge of the base portions 24, 34. In the first embodiment, the lower edging portions 26, 36 are formed such that the front portions 26a, 36a, opening-side portions 26b, 36b, and rear portions 26c, 36c are integrally formed so as to continuously border the front side, opening side, and rear side of the base portions 24, 34.

[0053] The front portions 25a, 35a and rear portions 25c, 35c (first abutment portions) of the upper edging portions 25, 35 and the front portions 26a, 36a and rear portions 26c, 36c (second abutment portions) of the lower edging portions 26, 36 constitute a front-to-rear positioning portion that aligns the positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 in the front-to-rear direction (front direction). In addition, the opening side portions 25b, 35b (third abutment portion) of the upper edging portions 25, 35 and the opening side portions 26b, 36b (fourth abutment portion) of the lower edging portions 26, 36 constitute a left-to-right positioning portion that aligns the positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 in the left-to-right direction (front direction).

[0054] The joint members 23, 33 are fixed to the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 with an adhesive. In the first embodiment, the vertical frame main bodies 21, 31 are made of a wooden material, the connecting frame bodies 22, 32 are made of a metal material, and the joint members 23, 33 are made of a resin material. Therefore, an adhesive suitable for bonding wooden members and resin members can be used to fix the vertical frame main bodies 21, 31 to the joint members 23, 33, and an adhesive suitable for bonding metal members and resin members can be used to fix the connecting frame bodies 22, 32 to the joint members 23, 33.

[0055] (Vertical joint structure of vertical frame) As described above, in the first embodiment, the long vertical frames 2, 3 for high doors are constructed by joining vertical frame bodies 21, 31 made of standard vertical frames and extension frame bodies 22, 32 having the same outer cross-sectional shape as the vertical frame bodies 21, 31 via joint members 23, 33 (the extension frame bodies 22, 32 are vertically joined below the vertical frame bodies 21, 31). Specifically, the long vertical frames 2, 3 for high doors are constructed by fixing the lower end portions of the vertical frame bodies 21, 31 to the joint members 23, 33 with an adhesive, and fixing the upper end portions of the extension frame bodies 22, 32 to the joint members 23, 33 with an adhesive.

[0056] The vertical frame main body 21, 31 is fixed with the front surface 21a, 31a abutting against the rear surface of the front portion 25a, 35a of the upper edging portion 25, 35 of the joint member 23, 33, the opening side surface 21b, 31b abutting against the wall side surface of the opening side portion 25b, 35b, and the rear surface 21c, 31c abutting against the front surface of the rear portion 25c, 35c.

[0057] The joint frame bodies 22, 32 are fixed with the front surfaces 22a, 32a abutting against the rear surfaces of the front portions 26a, 36a of the lower edging portions 26, 36 of the joint members 23, 33, the opening side surfaces 22b, 32b abutting against the wall side surfaces of the opening side portions 26b, 36b, and the rear surfaces 22c, 32c abutting against the front surfaces of the rear portions 26c, 36c.

[0058] Here, in the joint members 23, 33, the upper edging portions 25, 35 and the lower edging portions 26, 36 are formed so that the front-to-rear positions of the rear surfaces of the front portions 25a, 35a and 26a, 36a, and the front surfaces of the rear portions 25c, 35c and 26c, 36c, respectively, coincide with each other.

[0059] Therefore, when the vertical frame main body 21, 31 is fixed to the joint member 23, 33 so that the front surface 21a, 31a abuts the rear surface of the front portion 25a, 35a of the upper edging portion 25, 35, and the connecting frame body 22, 32 is fixed to the joint member 23, 33 so that the front surface 22a, 32a abuts the rear surface of the front portion 26a, 36a of the lower edging portion 26, 36, the front-to-rear positions of the front surface 21a, 31a of the vertical frame main body 21, 31 and the front surface 22a, 32a of the connecting frame body 22, 32, and the front-to-rear positions of the rear surface 21c, 31c of the vertical frame main body 21, 31 and the rear surface 22c, 32c of the connecting frame body 22, 32 will be aligned.

[0060] In addition, the front-to-back positions of the front surfaces 21a, 31a of the vertical frame main body 21, 31 and the front surfaces 22a, 32a of the connecting frame body 22, 32, and the front-to-back positions of the rear surfaces 21c, 31c of the vertical frame main body 21, 31 and the rear surfaces 22c, 32c of the connecting frame body 22, 32, can also be aligned by fixing the vertical frame main body 21, 31 to the connecting members 23, 33 so that the rear surfaces 21c, 31c abut against the front surfaces of the rear portions 25c, 35c of the upper edging portions 25, 35, and by fixing the connecting frame body 22, 32 to the connecting members 23, 33 so that the rear surfaces 22c, 32c abut against the front surfaces of the rear portions 26c, 36c of the lower edging portions 26, 36.

[0061] Furthermore, in the joint members 23, 33, the upper edging portions 25, 35 and the lower edging portions 26, 36 are formed so that the left-right positions of the wall side surfaces of the opening side portions 25b, 35b match. Therefore, when the vertical frame main bodies 21, 31 are fixed to the joint members 23, 33 so that the opening side surfaces 21b, 31b abut against the wall side surfaces of the opening side portions 25b, 35b of the upper edging portions 25, 35, and the extension frame bodies 22, 32 are fixed to the joint members 23, 33 so that the opening side surfaces 22b, 32b abut against the wall side surfaces of the opening side portions 26b, 36b of the lower edging portions 26, 36, the left-right positions of the opening side surfaces 21b, 31b of the vertical frame main bodies 21, 31 and the opening side surfaces 22b, 32b of the extension frame bodies 22, 32 are aligned.

[0062] - Door frame construction method - At the construction site of the door frame 1, before the frame materials (vertical frames 2, 3 and upper frame 4) that make up the door frame 1 are framed, long vertical frames 2, 3 for high doors are produced by joining (vertical jointing) the connecting frame bodies 22, 32 to the bottom of the vertical frame main bodies 21, 31 using joint members 23, 33.

[0063] First, the lower portions of the coupling members 23, 33 are fixed with an adhesive to the upper ends of the coupling frames 22, 32. Specifically, adhesive is applied to one of the contact surfaces between the upper ends of the coupling frames 22, 32 and the coupling members 23, 33, and the upper ends of the coupling frames 22, 32 are fitted into the lower portions of the coupling members 23, 33, i.e., the inside of the lower edging portions 26, 36 below the bases 24, 34. As a result, the upper ends of the coupling frames 22, 32 are fixed to the lower portions of the coupling members 23, 33 with the front surfaces 22a, 32a abutting against the rear surfaces of the front portions 26a, 36a of the lower edging portions 26, 36 of the coupling members 23, 33, the opening side surfaces 22b, 32b abutting against the wall side surfaces of the opening portions 26b, 36b, and the rear surfaces 22c, 32c abutting against the front surfaces of the rear portions 26c, 36c, respectively.

[0064] Next, the vertical frame bodies 21, 31 are fixed with adhesive to the upper portions of the joint members 23, 33 fixed to the upper ends of the joint frame bodies 22, 32. Specifically, adhesive is applied to either of the contact surfaces between the lower ends of the vertical frame bodies 21, 31 and the joint members 23, 33, and the lower ends of the vertical frame bodies 21, 31 are fitted into the upper portions of the joint members 23, 33, i.e., inside the upper edging portions 25, 35 above the bases 24, 34. As a result, the lower end of the vertical frame main body 21, 31 is fixed to the upper portion of the joint member 23, 33 with the front surface 21a, 31a abutting against the rear surface of the front portion 25a, 35a of the upper edging portion 25, 35 of the joint member 23, 33, the opening side surface 21b, 31b abutting against the wall side surface of the opening side portion 25b, 35b, and the rear surface 21c, 31c abutting against the front surface of the rear portion 25c, 35c.

[0065] In this manner, the lower portions of the joint members 23, 33 are fixed to the upper ends of the joint frame bodies 22, 32 with adhesive, and then the vertical frame bodies 21, 31 are fixed to the upper portions of the joint members 23, 33 fixed to the upper ends of the joint frame bodies 22, 32 with adhesive, thereby joining (vertically joining) the joint frame bodies 22, 32 to the bottom of the vertical frame bodies 21, 31, and long vertical frames 2, 3 for high doors are produced.

[0066] In addition, in this embodiment 1, since the vertical frame bodies 21, 31 are made of wooden material, it is also possible to adjust the length of the vertical frame bodies 21, 31 by cutting the vertical frame bodies 21, 31 before fixing them to the upper parts of the joint members 23, 33.

[0067] After fabricating the vertical frames 2 and 3, the components (vertical frames 2 and 3 and upper frame 4) of the door frame 1 are framed. Specifically, the upper frame 4 is placed between the upper ends of the vertical frames 2 and 3 (upper ends of the vertical frame bodies 21 and 31) so that the vertical frames are aligned vertically, and the vertical frames 2 and 3 and the upper frame 4 are fixed together with screws or the like.

[0068] After the framing work, the framed door frame 1 is installed in the opening O of the wall W. The components of the door frame 1 (vertical frames 2, 3 and top frame 4) are fixed to the frame such as the pillar A and lintel (not shown) with screws or the like.

[0069] -Effects of the first embodiment- In the first embodiment, the long vertical frames 2, 3 are constructed by joining the extension frame bodies 22, 32 below the vertical frame bodies 21, 31. Therefore, it is not necessary to prepare a long vertical frame for a high door separately from a normal vertical frame; instead, the normal vertical frame is used as the vertical frame body 21, 31, and then the extension frame bodies 22, 32 are joined below it, thereby easily constructing the long vertical frames 2, 3 for a high door. Therefore, according to the first embodiment, it is possible to provide the long vertical frames 2, 3 for a high door without increasing inventory risk and cost.

[0070] In the above-described vertical joint configuration, the vertical frame bodies 21, 31 and the extension frame bodies 22, 32 must be joined together without misalignment, which makes the construction process complicated. In particular, aligning the vertical frame bodies 21, 31 and the extension frame bodies 22, 32 in the front-to-back direction (the forward direction) is more difficult than aligning their positions in the left-to-right direction (the forward direction). Specifically, the vertical frames 2, 3 are fixed to the flat opening end surface of the wall W (the opening side surface of the column A or the spacer attached to the column A) while abutting against the wall W. Therefore, the wall side surfaces 22d, 32d of the vertical frames 2, 3 (the leading side surface of the vertical frame 2 on the door-leading side, and the trailing side surface of the vertical frame 3 on the door-trailing side) are configured to be flat so as to abut against the flat opening end surface of the wall W. Therefore, at the construction site, the left-right positioning of both components can be achieved simply by abutting the wall side surfaces 21d, 31d of the vertical frame main bodies 21, 31 and the wall side surfaces 22d, 32d of the connecting frame bodies 22, 32 against a flat floor surface F. On the other hand, the facing surfaces (front and rear surfaces) of the vertical frames 2, 3 are narrower than the wall side surfaces. Therefore, at the construction site, it is difficult to align the facing surfaces (front surfaces 21a, 31a or rear surfaces 21c, 31c) of the vertical frame main bodies 21, 31 and the facing surfaces (front surfaces 22a, 32a or rear surfaces 22c, 32c) of the connecting frame bodies 22, 32 against the floor surface F.

[0071] Therefore, in the first embodiment, the joint members 23, 33 for joining the connecting frame bodies 22, 32 below the vertical frame bodies 21, 31 are provided with front-to-rear positioning portions (front portions 25a, 35a and rear portions 25c, 35c of the upper edging portions 25, 35, and front portions 26a, 36a and rear portions 26c, 36c of the lower edging portions 26, 36) that align the front-to-rear positions of the vertical frame bodies 21, 31 and the connecting frame bodies 22, 32. The front-to-rear positioning portions are configured to abut against the front faces 21a, 31a or rear faces 21c, 31c of the lower end portions of the vertical frame bodies 21, 31 and abut against the front faces 22a, 32a or rear faces 22c, 32c of the upper end portions of the connecting frame bodies 22, 32, thereby aligning the front-to-rear positions of the vertical frame bodies 21, 31 and the connecting frame bodies 22, 32. Therefore, by simply abutting the front surfaces 21a, 31a or rear surfaces 21c, 31c of the lower ends of the vertical frame bodies 21, 31 with the front surfaces 22a, 32a or rear surfaces 22c, 32c of the upper ends of the connecting frame bodies 22, 32 against the front-to-rear positioning portions, the positions of the vertical frame bodies 21, 31 and the connecting frame bodies 22, 32 in the front-to-rear direction can be easily aligned. Therefore, according to this embodiment 1, the connecting frame bodies 22, 32 can be vertically joined easily below the vertical frame bodies 21, 31 without misalignment.

[0072] Furthermore, in this embodiment 1, the joint members 23, 33 are provided with left and right positioning portions (opening side portions 25b, 35b of the upper edging portions 25, 35 and opening side portions 26b, 36b of the lower edging portions 26, 36) that align the left and right positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32. The left and right positioning portions are configured to abut against the opening side surfaces 21b, 31b at the lower ends of the vertical frame main bodies 21, 31 and the opening side surfaces 22b, 32b at the upper ends of the connecting frame bodies 22, 32, thereby aligning the left and right positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32. Therefore, by simply abutting the opening side surfaces 21b, 31b at the lower ends of the vertical frame bodies 21, 31 and the opening side surfaces 22b, 32b at the upper ends of the connecting frame bodies 22, 32 against the left and right positioning portions, the left and right positions of the vertical frame bodies 21, 31 and the connecting frame bodies 22, 32 can be easily aligned. Therefore, according to this embodiment 1, the connecting frame bodies 22, 32 can be vertically connected easily below the vertical frame bodies 21, 31 without misalignment.

[0073] In addition, in this embodiment 1, the joint members 23, 33 are configured to have a plate-shaped base 24, 34 having the same outer cross-sectional shape as the vertical frame main body 21, 31, and a first abutment portion (front portion 25a, 35a and rear portion 25c, 35c of the upper edging portion 25, 35) and a second abutment portion (front portion 26a, 36a and rear portion 26c, 36c of the lower edging portion 26, 36) that protrude upward and downward, respectively, from at least one of the front and rear sides of the base 24, 34, so that the first and second abutment portions serve as front and rear positioning portions. With this configuration, by using the joint members 23, 33 that have a simple configuration in which the plate-shaped base 24, 34 is simply provided with the first and second abutment portions, the joint frame body 22, 32 can be easily joined vertically below the vertical frame main body 21, 31 without misalignment.

[0074] In the first embodiment, the joint members 23, 33 are made up of plate-shaped bases 24, 34 having the same outer shape of cross section as the vertical frame bodies 21, 31, and first abutment portions (front portions 25a, 35a and rear portions 25c, 35c of the upper edging portions 25, 35) and second abutment portions (front portions 26a, 26b of the lower edging portions 26, 36) that protrude upward and downward, respectively, from at least one of the front and rear sides of the bases 24, 34. The bases 24, 34 have a first abutment portion (opening side portions 25b, 35b of the upper edging portions 25, 35) and a fourth abutment portion (opening side portions 26b, 36b of the lower edging portions 26, 36) that protrude upward and downward, respectively, on the opening side of the bases 24, 34, and the first and second abutment portions serve as front-to-rear positioning portions, while the third and fourth abutment portions serve as left-to-right positioning portions. With this configuration, by using the joint members 23, 33 that have a simple configuration in which the plate-shaped bases 24, 34 are simply provided with the first to fourth abutment portions, the joint frame bodies 22, 32 can be easily joined below the vertical frame main bodies 21, 31 without misalignment.

[0075] In addition, in this embodiment 1, the front portions 25a, 35a and rear portions 25c, 35c (first abutment portions) of the upper edging portions 25, 35 and the opening side portions 25b, 35b (third abutment portions) of the upper edging portions 25, 35 are integrally formed so as to continuously border the front side, opening side and rear side of the base 24, 34, and the front portions 26a, 36a and rear portions 26c, 36c (second abutment portions) of the lower edging portions 26, 36 and the opening side portions 26b, 36b (fourth abutment portions) of the lower edging portions 26, 36 are integrally formed so as to continuously border the front side, opening side and rear side of the base 24, 34. With this configuration, the exposed surfaces (front surface 21a, opening side surface 21b, and rear surface 21c) of the lower ends of the vertical frame bodies 21, 31 and the exposed surfaces (front surface 22a, opening side surface 22b, and rear surface 22c) of the upper ends of the joint frame bodies 22, 32 are covered integrally, not piecemeal, by the upper edging portions 25, 35 and the lower edging portions 26, 36 (first to fourth abutment portions). Therefore, according to this embodiment 1, at the joint portions between the vertical frame bodies 21, 31 and the joint frame bodies 22, 32, the upper edging portions 25, 35 and the lower edging portions 26, 36 (first to fourth abutment portions) add an accent to the design of the vertical frames 2, 3, and it is possible to suppress a decrease in design due to the vertical joining of the vertical frame bodies 21, 31 and the joint frame bodies 22, 32.

[0076] In elderly care facilities and medical facilities, steel door frames are often used to prevent wheelchairs from hitting and damaging the vertical frame of the door frame. However, steel door frames have the problem of being more expensive and less workable than wooden door frames.

[0077] Therefore, in the first embodiment, the vertical frame bodies 21, 31 are made of wood, and the extension frame bodies 22, 32 are made of metal. With this configuration, the lower portions of the vertical frames 2, 3, which may be hit by a wheelchair, are made of the extension frame bodies 22, 32 made of metal, which increases their strength and makes them less susceptible to damage. Furthermore, by making the vertical frame bodies 21, 31 out of wood rather than making the entire vertical frames 2, 3 out of metal, adjusting the length of the vertical frames 2, 3 at the installation site can be done by simply cutting the vertical frame bodies 21, 31 made of wood, which allows for easy processing at the installation site.

[0078] Furthermore, according to the first embodiment, by configuring the joint members 23, 33 as described above, it is possible to easily configure the joint members 23, 33 that can easily join the extension frame bodies 22, 32 to the lower side of the vertical frame main bodies 21, 31 without misalignment. Furthermore, the upper edging portions 25, 35 and the lower edging portions 26, 36 (first to fourth abutment portions) exposed at the joints between the vertical frame main bodies 21, 31 and the extension frame bodies 22, 32 can add an accent to the design of the vertical frames 2, 3, so that the vertical frame main bodies 21, 31 and the extension frame bodies 22, 32 can be joined to each other without degrading the design of the vertical frames 2, 3.

[0079] Second Embodiment of the Invention In the second embodiment, the configuration of the vertical frames 2 and 3 of the first embodiment is partially changed. Specifically, in the second embodiment, the configuration of the joint frame bodies 22 and 32 and the joint members 23 and 33 of the vertical frames 2 and 3 of the first embodiment is partially changed. Note that the configuration changes in the vertical frames 2 and 3 are the same, so only the vertical frame 2 on the door-end side shown in Figure 6 will be described below.

[0080] In the second embodiment, the joint member 23 further includes a plate-shaped piece 51 in addition to the base 24, the upper edging 25, and the lower edging 26. The plate-shaped piece 51 is a thin plate-like portion extending downward from the wall-side edge (left edge) of the base 24. In FIG. 6, the plate-shaped piece 51 is formed in a rectangular shape, but the shape is not particularly limited to a rectangular shape.

[0081] In the second embodiment, a groove 52 into which the plate-shaped piece 51 of the joint member 23 fits is formed on the wall side surface (left side surface) of the joint frame body 22. The groove 52 is formed in the same shape (rectangular) as the outer shape of the plate-shaped piece 51 so that the plate-shaped piece 51 fits without any gaps. When the joint frame body 22 is formed from a plate-shaped metal member, the groove 52 is formed by recessing the groove-relevant portion inward. On the other hand, when the joint frame body 22 is configured as a solid member from a wood material, a resin material, or the like, the groove 52 is formed by cutting out the groove-relevant portion or forming a depression, for example.

[0082] The plate-like piece portion 51 and the groove 52 are configured so that the plate-like piece portion 51 fits into the groove 52 when the connecting frame body 22 is joined to the lower part of the vertical frame main body 21 without any misalignment.

[0083] In the second embodiment, the plate-like piece 51 and groove 52 as described above are also formed in the vertical frame 3 on the trailing edge side.

[0084] The second embodiment can also achieve the same effects as the first embodiment. Furthermore, according to the second embodiment, the plate-like piece 51 extends downward from the wall-side edge of the base 24, 34 of the coupling member 23, 33, which is located on the wall side (the leading edge side for the leading-edge vertical frame 2, and the trailing edge side for the trailing-edge vertical frame 3), and is configured to fit into a groove 52 formed in the wall side surface of the connecting frame body 22, 32 (the leading edge side surface for the leading-edge vertical frame 2, and the trailing edge side for the trailing-edge vertical frame 3). This configuration allows the coupling member 23, 33 to be easily positioned and fixed at an appropriate position on the connecting frame body 22, 32 simply by fitting the plate-like piece 51 of the coupling member 23, 33 into the groove 52 of the connecting frame body 22, 32. The appropriate position refers to the position at which the coupling member 23, 33 should be positioned relative to the connecting frame body 22, 32 so that the connecting frame body 22, 32 can be joined below the vertical frame main body 21, 31 without misalignment.

[0085] Third Embodiment of the Invention In the third embodiment, the configuration of some of the vertical frames 2, 3 of the first embodiment is modified. Specifically, in the third embodiment, the configuration of the upper end portions of the connecting frame bodies 22, 32 of the vertical frames 2, 3 of the first embodiment is modified, and the joint members 23, 33 are omitted. In the third embodiment, the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 can be easily joined vertically without using the joint members 23, 33. Note that, since the configuration changes in the vertical frames 2, 3 are the same, only the vertical frame 2 on the door-end side shown in Figure 7 will be described below.

[0086] In the third embodiment, instead of omitting the joint member 23 of the first embodiment, a joint member 55 corresponding to the upper edging portion 25 of the joint member 23 is integrally formed at the upper end of the joint frame body 22. The joint member 55 has a front portion 55a corresponding to the front portion 25a of the upper edging portion 25, an opening side portion 55b corresponding to the opening side portion 25b of the upper edging portion 25, and a rear portion 55c corresponding to the rear portion 25c of the upper edging portion 25. In the third embodiment, the joint member 55 is integrally formed with the front portion 55a, the opening side portion 55b, and the rear portion 55c so as to continuously cover the front surface, the opening side surface, and the rear surface of the lower end of the vertical frame body 21.

[0087] The front portion 55a of the joint member 55 is formed so as to be continuous with the front surface 22a of the joint frame body 22, and is formed so as to protrude forward of the front surface 22a of the joint frame body 22 so that when the front surface 21a of the lower end portion of the vertical frame main body 21 is abutted against the rear surface, the front surface 21a of the vertical frame main body 21 and the front surface 22a of the joint frame body 22 are aligned in the fore-and-aft direction.

[0088] The opening side portion 55b of the joint member 55 is formed so as to be continuous with the opening side surface 22b of the joint frame body 22, and is formed so as to protrude toward the opening side beyond the opening side surface 22b of the joint frame body 22 so that when the opening side surface 21b of the lower end portion of the vertical frame main body 21 is abutted against the wall side surface, the left-right positions of the opening side surface 21b of the vertical frame main body 21 and the opening side surface 22b of the joint frame body 22 are aligned.

[0089] The rear portion 55c of the joint member 55 is formed so as to be continuous with the rear surface 22c of the joint frame body 22, and is formed so as to protrude rearward beyond the rear surface 22c of the joint frame body 22 so that when the rear surface 21c of the lower end portion of the vertical frame main body 21 is abutted against the front surface, the front-to-rear positions of the rear surface 21c of the vertical frame main body 21 and the rear surface 22c of the joint frame body 22 are aligned.

[0090] In the third embodiment, the joint member 55 as described above is also integrally formed at the upper end of the joint frame body 32 of the vertical frame 3 on the door trailing edge side.

[0091] In the third embodiment, the front portion 55a and rear portion 55c of the joint member 55 formed integrally with the upper end portions of the joint frame bodies 22, 32 constitute a front-to-rear positioning portion that aligns the positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 in the front-to-rear direction (the forward direction). In addition, the opening side portion 55b of the joint member 55 formed integrally with the upper end portions of the joint frame bodies 22, 32 constitutes a left-to-right positioning portion that aligns the positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 in the left-to-right direction (the forward direction).

[0092] (Vertical joint structure of vertical frame) As described above, in the third embodiment, the long vertical frames 2, 3 for high doors are constructed by joining vertical frame bodies 21, 31 made of standard vertical frames and joint frame bodies 22, 32 having the same outer cross-sectional shape as the vertical frame bodies 21, 31 (the joint frame bodies 22, 32 are joined vertically below the vertical frame bodies 21, 31). Specifically, in the third embodiment, the long vertical frames 2, 3 for high doors are constructed by fixing the lower end portions of the vertical frame bodies 21, 31 and the joint members 55 formed integrally with the upper end portions of the joint frame bodies 22, 32 with an adhesive.

[0093] The vertical frame bodies 21, 31 are fixed with their front faces 21a, 31a abutting against the rear surface of the front part 55a of the joint member 55 formed integrally with the upper end of the joint frame bodies 22, 32, their opening side faces 21b, 31b abutting against the wall side of the opening part 55b, and their rear faces 21c, 31c abutting against the front surface of the rear part 55c.

[0094] As described above, the front portion 55a of the joint member 55 is formed so that, when the front surface 21a of the lower end of the vertical frame main body 21 abuts against the rear surface, the front surface 21a of the vertical frame main body 21 and the front surface 22a of the extension frame body 22 are aligned in the front-to-rear direction. Furthermore, the opening side portion 55b of the joint member 55 is formed so that, when the opening side surface 21b of the lower end of the vertical frame main body 21 abuts against the wall side surface, the left-to-right positions of the opening side surface 21b of the vertical frame main body 21 and the opening side surface 22b of the extension frame body 22 are aligned. Furthermore, the rear portion 55c of the joint member 55 is formed so that, when the rear surface 21c of the lower end of the vertical frame main body 21 abuts against the front surface, the rear surface 21c of the vertical frame main body 21 and the rear surface 22c of the extension frame body 22 are aligned in the front-to-rear direction.

[0095] Therefore, when the vertical frame main body 21, 31 is fixed to the joint member 55 so that the front surfaces 21a, 31a abut the rear surfaces of the front portions 25a, 35a of the joint member 55, the front-to-rear positions of the front surfaces 21a, 31a of the vertical frame main body 21, 31 and the front surfaces 22a, 32a of the joint frame body 22, 32, and the front-to-rear positions of the rear surfaces 21c, 31c of the vertical frame main body 21, 31 and the rear surfaces 22c, 32c of the joint frame body 22, 32, will be aligned.

[0096] In addition, the front-to-back positions of the front surfaces 21a, 31a of the vertical frame main body 21, 31 and the front surfaces 22a, 32a of the connecting frame body 22, 32, and the front-to-back positions of the rear surfaces 21c, 31c of the vertical frame main body 21, 31 and the rear surfaces 22c, 32c of the connecting frame body 22, 32, can also be aligned by fixing the vertical frame main body 21, 31 to the joint member 55 so that the rear surfaces 21c, 31c abut against the front surfaces of the rear portions 25c, 35c of the joint member 55.

[0097] Furthermore, the opening side portion 55b of the joint member 55 is formed so that when the opening side surface 21b of the lower end of the vertical frame main body 21 abuts against the wall side surface, the left-right positions of the opening side surface 21b of the vertical frame main body 21 and the opening side surface 22b of the extension frame body 22 are aligned. Therefore, when the vertical frame main bodies 21, 31 are fixed to the joint member 55 so that the opening side surfaces 21b, 31b abut against the wall side surface of the opening side portion 55b of the joint member 55, the left-right positions of the opening side surfaces 21b, 31b of the vertical frame main bodies 21, 31 and the opening side surfaces 22b, 32b of the extension frame bodies 22, 32 are aligned.

[0098] - Door frame construction method - At the construction site of the door frame 1, before the frame materials (vertical frames 2, 3 and upper frame 4) that make up the door frame 1 are framed, long vertical frames 2, 3 for high doors are produced by joining (vertical jointing) the connecting frame bodies 22, 32 to the bottom of the vertical frame main bodies 21, 31 using joint members 23, 33.

[0099] The vertical frame bodies 21, 31 are fixed with an adhesive to the joint member 55 formed integrally with the upper end of the joint frame bodies 22, 32. Specifically, adhesive is applied to one of the contact surfaces between the lower end of the vertical frame bodies 21, 31 and the joint member 55, and the lower end of the vertical frame bodies 21, 31 is fitted inside the joint member 55. As a result, the lower end of the vertical frame bodies 21, 31 is fixed to the joint member 55 with the front faces 21a, 31a abutting against the rear surface of the front portion 55a of the joint member 55, the opening side faces 21b, 31b abutting against the wall side surface of the opening portion 55b, and the rear faces 21c, 31c abutting against the front surface of the rear portion 55c.

[0100] In this manner, by fixing the vertical frame main bodies 21, 31 with adhesive to the joint member 55 integrally formed at the upper end of the joint frame bodies 22, 32, the joint frame bodies 22, 32 are joined (vertically joined) below the vertical frame main bodies 21, 31, and long vertical frames 2, 3 for high doors are produced.

[0101] In addition, in this embodiment 3, since the vertical frame bodies 21, 31 are made of wooden material, it is also possible to adjust the length of the vertical frame bodies 21, 31 by cutting the vertical frame bodies 21, 31 before fixing them to the joint member 55.

[0102] After fabricating the vertical frames 2 and 3, the components (vertical frames 2 and 3 and upper frame 4) of the door frame 1 are framed. Specifically, the upper frame 4 is placed between the upper ends of the vertical frames 2 and 3 (upper ends of the vertical frame bodies 21 and 31) so that the vertical frames are aligned vertically, and the vertical frames 2 and 3 and the upper frame 4 are fixed together with screws or the like.

[0103] After the framing work, the framed door frame 1 is installed in the opening O of the wall W. The components of the door frame 1 (vertical frames 2, 3 and top frame 4) are fixed to the frame such as the pillar A and lintel (not shown) with screws or the like.

[0104] -Effects of the third embodiment- In the third embodiment, as in the first embodiment, the long vertical frames 2, 3 are constructed by joining the extension frame bodies 22, 32 below the vertical frame bodies 21, 31. Therefore, without preparing a long vertical frame for a high door separately from a normal vertical frame, the normal vertical frame can be used as the vertical frame body 21, 31, and then the extension frame bodies 22, 32 can be joined below it to easily construct the long vertical frames 2, 3 for a high door. Therefore, according to the first embodiment, the long vertical frames 2, 3 for a high door can be provided without increasing inventory risk and cost.

[0105] Furthermore, in the third embodiment, the upper ends of the connecting frame bodies 22, 32 are integrally formed with front-to-rear positioning portions (front portion 55a and rear portion 55c of the joint member 55) that align the front-to-rear positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32. The front-to-rear positioning portions are configured to align the front-to-rear positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 by abutting against the front faces 21a, 31a or rear faces 21c, 31c of the lower ends of the vertical frame main bodies 21, 31. Therefore, the front-to-rear positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 can be easily aligned simply by abutting the front faces 21a, 31a or rear faces 21c, 31c of the lower ends of the vertical frame main bodies 21, 31 against the front-to-rear positioning portions. Therefore, according to the third embodiment, the connecting frame bodies 22, 32 can be easily joined below the vertical frame main bodies 21, 31 without misalignment.

[0106] Furthermore, in the third embodiment, left-right positioning portions (opening side portions 55b of the joint member 55) are provided at the upper ends of the connecting frame bodies 22, 32 to align the left-right positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32. The left-right positioning portions are configured to align the left-right positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 by abutting against the opening side surfaces 21b, 31b at the lower ends of the vertical frame main bodies 21, 31. Therefore, the left-right positions of the vertical frame main bodies 21, 31 and the connecting frame bodies 22, 32 can be easily aligned simply by abutting the opening side surfaces 21b, 31b at the lower ends of the vertical frame main bodies 21, 31 against the left-right positioning portions. Therefore, according to the third embodiment, the connecting frame bodies 22, 32 can be easily joined below the vertical frame main bodies 21, 31 without misalignment.

[0107] Furthermore, according to embodiment 3, the joint member 55 is integrally formed at the upper end of the joint frame body 22, 32, so when vertically joining the vertical frame main body 21, 31 and the joint frame body 22, 32 to produce the vertical frames 2, 3, there is no need to perform the work of fixing the joint member 55 to the joint frame body 22, 32, and therefore the vertical frames 2, 3 can be produced more easily than in embodiment 1.

[0108] Other Embodiments In the above embodiments 1 to 3, examples have been described in which the vertical frames 2, 3 of the present invention are used in a door frame 1 consisting of a three-sided frame, but the vertical frames 2, 3 of the present invention can also be used in a door frame 1 consisting of a two-sided frame or a four-sided frame.

[0109] Furthermore, in the above embodiments 1 to 3, examples have been described in which the door D is a hanging door, but the vertical frames 2, 3 of the present invention can also be applied to door frames 1 for hinged doors or sliding doors in which the door D is a hinged door or a sliding door (including double sliding doors).

[0110] In addition, in the above-mentioned embodiments 1 to 3, the vertical frame bodies 21, 31 are made of wood material and the joint frame bodies 22, 32 are made of metal material, but the vertical frames 2, 3 according to the present invention are not limited to the above. Both the vertical frame bodies 21, 31 and the joint frame bodies 22, 32 may be made of wood material or may be made of metal material.

[0111] In addition, in the above-described Embodiments 1 to 3, the joint members 23, 33, 55 are provided with both the front-rear positioning portion and the left-right positioning portion. However, as described above, the task of aligning the left-right positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 is easier than the task of aligning their positions in the front-rear direction, so the joint members 23, 33, 55 only need to be provided with at least the front-rear positioning portion.

[0112] Furthermore, in the above-described first and second embodiments, the front portion 25a, 35a and the rear portion 25c, 35c (first contact portion) of the upper edging portion 25, 35 and the front portion 26a, 36a and the rear portion 26c, 36c (second contact portion) of the lower edging portion 26, 36 were provided as the front-to-rear positioning portion. However, since the front-to-rear positioning portion only needs to be able to align the positions of the vertical frame main body 21, 31 and the joint frame body 22, 32 in the front-to-rear direction (projection direction), it is sufficient that the front-to-rear positioning portion includes at least one of the front portion 25a, 35a and the rear portion 25c, 35c of the upper edging portion 25, 35 and at least one of the front portion 26a, 36a and the rear portion 26c, 36c of the lower edging portion 26, 36.

[0113] Similarly, in the third embodiment, the front portion 55a and the rear portion 55c of the joint member 55 are provided as the front-rear positioning portion. However, since the front-rear positioning portion only needs to be able to align the positions of the vertical frame main bodies 21, 31 and the joint frame bodies 22, 32 in the front-rear direction (projection direction), it is sufficient that it includes at least one of the front portion 55a and the rear portion 55c of the joint member 55.

[0114] Furthermore, in the above embodiments 1 and 2, the front portions 25a, 35a, 26a, 36a and rear portions 25c, 35c, 26c, 36c of the upper edging portions 25, 35 and the lower edging portions 26, 36 that constitute the front-to-rear positioning portions were formed long so as to edge the front and rear sides of the bases 24, 34 from the wall side end to the opening side end, respectively, but they may also be formed long enough to edge a portion of the front and rear sides of the bases 24, 34, as long as they are long enough to abut against the front faces 21a, 31a, 22a, 32a and rear faces 21c, 31c, 22c, 32c of the vertical frame main body 21, 31 and the extension frame body 22, 32 and to be positioned in the front-to-rear direction. Similarly, the opening side portions 25b, 35b, 26b, 36b of the upper edging portions 25, 35 and the lower edging portions 26, 36 that constitute the left and right positioning portions may be formed to a length that borders a portion of the opening side of the base portions 24, 34, as long as they are long enough to abut against the opening side surfaces 21b, 31b, 22b, 32b of the vertical frame main body 21, 31 and the connecting frame body 22, 32 and be positioned in the left and right direction.

[0115] Similarly, in the third embodiment, the front portion 55a and the rear portion 55c of the joint member 55 constituting the front-to-rear positioning portion are formed long so as to border the front surfaces 22a, 32a and the rear surfaces 22c, 32c of the upper end portions of the joint frame bodies 22, 32 from the wall side edge to the opening side edge, but they may be formed to a length that borders a portion of the front surfaces 22a, 32a and the rear surfaces 22c, 32c of the upper end portions of the joint frame bodies 22, 32, as long as they are long enough to abut against the front surfaces 21a, 31a and the rear surfaces 21c, 31c of the vertical frame main bodies 21, 31 and to be positioned in the front-to-rear direction. Similarly, the opening side portion 55b of the joint member 55 constituting the left-to-right positioning portion may be formed to a length that borders a portion of the opening side surfaces 22b, 32b of the upper end portions of the joint frame bodies 22, 32, as long as they are long enough to abut against the opening side surfaces 21b, 31b of the vertical frame main bodies 21, 31 and to be positioned in the left-to-right direction. [Industrial Applicability]

[0116] The present invention is useful for a vertical frame of a door frame attached to an opening in a wall of a room, and for a joint member that vertically joins the vertical frame body and joint frame body that make up the vertical frame. [Explanation of symbols]

[0117] 1 Door Frame 2 Vertical Frame 3 Vertical Frame 21, 31 Vertical Frame Body 21a, 31a Front Surface 21b, 31b Opening Side Surface 21c, 31c Rear Surface 22, 32 Joint Frame Body 22a, 32a Front Surface 22b, 32b Opening Side Surface 22c, 32c Rear Surface 22d, 32d Wall Side Surface 23, 33 Joint Member 24, 34 Base 25, 35 Upper Edge Catching Part 25a, 35a Front Side Part (Front - Rear Positioning Part, First Contact Part) 25b, 35b Opening Side Part (Left - Right Positioning Part, Third Contact Part) 25c, 35c Rear Side Part (Front - Rear Positioning Part, First Contact Part) 26, 36 Lower Edge Catching Part 26a, 36a Front Side Part (Front - Rear Positioning Part, Second Contact Part) 26b, 36b Opening Side Part (Left - Right Positioning Part, Fourth Contact Part) 26c, 36c Rear Side Part (Front - Rear Positioning Part, Second Contact Part) 51 Plate - like Piece Part 52 Groove 55 Joint Member 55a Front Side Part (Front - Rear Positioning Part) 55b Opening Side Part (Left - Right Positioning Part) 55c Rear Side Part (Front - Rear Positioning Part)

Claims

1. A door frame vertical frame attached to an opening in a wall of a room, A vertical frame body extending in the vertical direction; A joint frame body extending in the vertical direction and having an outer shape of a cross section equal to that of the vertical frame body; and a joint member that is fixed to the lower end of the vertical frame body and the upper end of the joint frame body, thereby joining the joint frame body to the lower part of the vertical frame body. A vertical frame characterized by:

2. The vertical frame according to claim 1, The joint member has a front-to-rear positioning portion that abuts against the front or rear surface of the lower end of the vertical frame body and against the front or rear surface of the upper end of the joint frame body, thereby aligning the positions of the vertical frame body and the joint frame body in the front-to-rear direction. A vertical frame characterized by:

3. The vertical frame according to claim 2, The joint member has a left-right positioning portion that abuts against the opening side surface of the lower end of the vertical frame body and against the opening side surface of the upper end of the joint frame body, thereby aligning the left-right positions of the vertical frame body and the joint frame body. A vertical frame characterized by:

4. The vertical frame according to claim 2, The coupling member is a plate-shaped base portion having an outer cross-sectional shape identical to that of the vertical frame body, sandwiched between the vertical frame body and the joint frame body and bonded to both members; The first abutment portion protrudes upward from at least one of the front and rear sides of the base and abuts against the front or rear surface of the lower end of the vertical frame body; a second abutment portion that protrudes downward from at least one of the front and rear sides of the base and abuts against the front or rear surface of the upper end of the joint frame body; The front-rear positioning portion is constituted by the first and second abutment portions. A vertical frame characterized by:

5. The vertical frame according to claim 3, The coupling member is a plate-shaped base portion having an outer cross-sectional shape identical to that of the vertical frame body, sandwiched between the vertical frame body and the joint frame body and bonded to both members; The first abutment portion protrudes upward from at least one of the front and rear sides of the base and abuts against the front or rear surface of the lower end of the vertical frame body; a second abutment portion that protrudes downward from at least one of the front and rear sides of the base and abuts against the front or rear surface of the upper end of the joint frame; A third abutment portion that protrudes upward on the opening side of the base and abuts against the opening side surface of the lower end of the vertical frame body; a fourth abutment portion that protrudes downward from the opening side of the base portion and abuts against the opening side surface of the upper end portion of the joint frame body, the front-rear positioning portion is constituted by the first and second abutment portions, The left and right positioning portions are constituted by the third and fourth contact portions. A vertical frame characterized by:

6. The vertical frame according to claim 5, the first and third contact portions are integrally formed so as to continuously border the front side, the opening side, and the rear side of the base portion, The second and fourth contact portions are integrally formed so as to continuously border the front side, the opening side, and the rear side of the base portion. A vertical frame characterized by:

7. The vertical frame according to claim 4, The joint member has a plate-like piece portion extending downward from a wall-side edge portion of the base portion, A groove into which the plate-like piece portion fits is formed on the wall side surface of the joint frame body, The plate-shaped piece and the groove are configured so that the plate-shaped piece fits into the groove when the joint frame body is joined to the lower side of the vertical frame body without misalignment. A vertical frame characterized by:

8. A door frame vertical frame attached to an opening in a wall of a room, A vertical frame body extending in the vertical direction; A joint frame body extending in the vertical direction and joined to the lower part of the vertical frame body, The upper end of the connecting frame body is integrally formed with a front-rear positioning portion that aligns the front-rear positions of the vertical frame body and the connecting frame body by abutting against the front or rear surface of the lower end of the vertical frame body. A vertical frame characterized by:

9. The vertical frame according to claim 8, The upper end of the connecting frame body is integrally formed with a left-right positioning portion that abuts against the opening side surface of the lower end of the vertical frame body, thereby aligning the left-right positions of the vertical frame body and the connecting frame body. A vertical frame characterized by:

10. In the vertical frame according to any one of claims 1 to 9, The vertical frame body is made of wood material, The joint frame is made of a metal material. A vertical frame characterized by:

11. A joint member for joining a vertical frame body and a joint frame body that constitute a vertical frame of a door frame attached to an opening in a wall of a room so that the joint frame body is located below the vertical frame body, The joint member is a joint member according to any one of claims 4 to 6. A coupling member characterized by:

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