Door tip side vertical frame, door frame, and opening structure

Abstract

To provide a metal door tip side vertical frame capable of easily changing the presence / absence of a lock receiving hole, a door frame provided with the door tip side vertical frame, and an opening structure provided with the door frame in an opening part.SOLUTION: A door frame 1 is provided in an opening O of an indoor wall W. A door tip side vertical frame 2 of the door frame 1 is formed of a plate-shaped metallic member, and includes a vertically extending cylindrical vertical frame body 21 having a vertically extending recessed groove 25 formed on an inner surface thereof, and a shielding member 22 provided in the recessed groove 25 for covering a groove bottom 26. The groove bottom 26 of the recessed groove 25 and the shielding member 22 are formed with lock receiving holes h1 to h3 into which a lock receiving member 50 is fitted, and the groove bottom 26 of the recessed groove 25 is formed with the lock receiving holes h1 and h2 at a plurality of positions. The shielding member 22 is detachably fixed to the vertical frame body 21.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a metal vertical door-end frame that is attached to an opening in a wall inside a room, a door frame having the vertical door-end frame, and an opening structure in which the door frame is provided in the opening. [Background technology]

[0002] Conventionally, metal door frames have been used in building openings where wheelchairs pass through or where many people use in order to improve durability. However, there is a trend toward wood-based interiors, and even when metal door frames are used, wooden doors are sometimes used or the door frames are given a wood-grain finish (for example, see Patent Document 1 below).

[0003] Patent Document 1 discloses a metal door frame whose surface is covered with a wood-grain decorative sheet. This type of door frame can be matched with interiors based on wood, making it possible to obtain an interior that does not look out of place against wooden doors or walls while still taking advantage of the advantages of a metal door frame. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-266556 A Summary of the Invention [Problem to be solved by the invention]

[0005] When using a door with a lock, it is necessary to install a door frame with a lock hole in the leading edge vertical frame into which the lock receiving member fits, but sometimes an incorrect leading edge vertical frame without a key hole is installed. Conversely, it is also possible to install an incorrect leading edge vertical frame with a lock hole for a door that does not require a lock. If the presence or absence of a lock hole is incorrect, with a wooden door frame, it is possible to fill in the incorrectly formed lock hole or drill a new lock hole even after the door frame has been installed, but with a metal door frame, it is not possible to change the presence or absence of a lock hole after the door frame has been installed, so it is necessary to remove the door frame and change the leading edge vertical frame to the correct one (a leading edge vertical frame with a lock hole for a door with a lock, and a leading edge vertical frame without a lock hole for a door that does not require a lock).

[0006] The present invention has been made in consideration of the above points, and its purpose is to provide a metal door-end vertical frame that can easily be changed to have or not have a lock hole, a door frame that has this door-end vertical frame, and an opening structure in which the door frame is installed in an opening. [Means for solving the problem]

[0007] In order to achieve the above-mentioned objective, in the present invention, a concave groove extending in the vertical direction is formed on the inner surface of the metal vertical frame body on the door end side vertical frame, and a shielding member that covers and conceals the bottom of the groove is provided in the concave groove so that the presence or absence of a lock receiving hole can be easily changed by simply replacing the shielding member.

[0008] Specifically, the first invention is a vertical frame on the door-end side of a door frame to be attached to an opening in a wall inside a room, comprising a cylindrical vertical frame body formed from a plate-shaped metal member and extending in the vertical direction with a vertically extending groove formed on its inner surface, and a shielding member provided within the groove so as to cover and conceal the bottom of the groove, and a lock receiving hole into which a lock receiving member fits is formed in the bottom of the groove and in the shielding member, and the shielding member is fixed to the vertical frame body in a manner that allows it to be freely attached and detached.

[0009] The second invention is a vertical frame on the door-end side of a door frame to be attached to an opening in a wall inside a room, comprising a vertically extending cylindrical vertical frame body formed of a plate-shaped metal member and having a vertically extending groove formed on its inner surface, and a shielding member provided within the groove so as to cover the bottom of the groove, the shielding member having a lock receiving hole formed in which a lock receiving member fits, and the shielding member being fixed to the vertical frame body so as to be freely attached and detached.

[0010] In addition, the "inner surface of the vertical frame body" refers to the side surface of the vertical frame body that becomes the inner surface of the door frame.

[0011] In the first invention, in the leading-side vertical frame, a groove extending in the up-down direction is formed on the inner surface of the metal vertical frame body, a shielding member that covers and hides the bottom of the groove is provided in the groove, and a lock receiving hole into which a lock receiving member fits is formed not only in the shielding member but also in the groove bottom of the groove, and the shielding member is detachably fixed to the vertical frame body. With such a leading-side vertical frame, even if an incorrect leading-side vertical frame without a lock receiving hole is installed for a door with a lock, or an incorrect leading-side vertical frame with a lock receiving hole formed for a door that does not require a lock, the presence or absence of a lock receiving hole can be easily changed by only removing the shielding member of the leading-side vertical frame and replacing it with an appropriate shielding member (a shielding member with a lock receiving hole for a door with a lock, or a shielding member without a lock receiving hole for a door that does not require a lock) without removing the entire door frame.

[0012] In the second invention, in the leading-side vertical frame, a concave groove extending in the up-down direction is formed on the inner surface of the metal vertical frame main body, a shielding member that covers the bottom of the groove is provided in the concave groove, and a lock receiving hole into which a lock receiving member fits is formed only in the shielding member, and the shielding member is detachably fixed to the vertical frame main body. With a leading-side vertical frame configured in this way, even if an incorrect leading-side vertical frame without a lock receiving hole is installed for a door with a lock, or an incorrect leading-side vertical frame with a lock receiving hole formed for a door that does not require a lock, the presence or absence of a lock receiving hole can be easily changed by simply removing only the shielding member of the leading-side vertical frame and replacing it with an appropriate shielding member (a shielding member with a lock receiving hole for a door with a lock, or a shielding member without a lock receiving hole for a door that does not require a lock) without removing the entire door frame.

[0013] As described above, according to the first and second aspects of the present invention, a metal door-end vertical frame can be provided that can easily be changed to have or not have a lock hole.

[0014] According to the second invention, even if an incorrect door end vertical frame is constructed with a key receiving hole position (height) that does not correspond to the door lock position, the position of the lock receiving hole can be easily changed by only removing the shielding member of the door end vertical frame and replacing it with a shielding member with a lock receiving hole formed in an appropriate position, without removing the entire door frame. Similarly, in the first invention, by forming lock receiving holes (one large hole or multiple holes) that correspond to the possible installation locations (multiple) of the lock receiving member at the bottom of the groove, even if an incorrect door end vertical frame is constructed with a key receiving hole position (height) that does not correspond to the door lock position, the position of the lock receiving hole can be easily changed by only removing the shielding member of the door end vertical frame and replacing it with a shielding member with a lock receiving hole formed in an appropriate position, without removing the entire door frame.

[0015] A third invention is characterized in that, in the first invention, the door frame is provided with a sliding door or a hanging door, and the recessed groove is a door clearance groove.

[0016] In the third invention, the bottom of a groove of a conventional door edge vertical frame for a sliding door or hanging door is used as the recessed groove. With this configuration, it is possible to provide a metal door edge vertical frame that can easily be changed to have or not have a lock hole without significantly changing the configuration of the conventional door edge vertical frame with a door edge groove.

[0017] The fourth invention is characterized in that, in the third invention, the vertical frame body has the groove formed on the front side of the wall, and has a folded portion formed by folding back a plate-shaped metal member on the front side of the groove, and the folded portion is formed so that its front surface forms part of the front surface of the vertical frame body and its rear surface forms the groove side surface on the front side of the groove.

[0018] In the fourth invention, the door end vertical frame has a door clearance groove (concave groove) formed on the front side of the wall, and is used in a so-called offset type door frame. In offset type door frames, a side wall is often not provided on the front side of the door clearance groove of the vertical frame body, but in the fourth invention, in order to provide a shielding member within the door clearance groove (concave groove), a folded portion is provided by folding back a plate-shaped metal member on the front side of the door clearance groove (concave groove), so that a side wall is formed on the front side of the door clearance groove (concave groove). Therefore, according to the fourth invention, it is possible to prevent the shielding member from being damaged or detached when, for example, a wheelchair hits the door end vertical frame.

[0019] The fifth invention is a door frame to be attached to an opening in a wall inside a room, characterized in that it has a door-end vertical frame according to the first or second invention.

[0020] According to the fifth aspect of the present invention, a door frame can be provided that allows the presence or absence of a lock hole to be easily changed.

[0021] The sixth invention is the fifth invention, characterized in that, of the frame materials constituting the door frame, the frame materials other than the vertical frame on the door end side are made of wooden material.

[0022] In the sixth aspect of the present invention, the frame materials constituting the door frame, except for the vertical frame on the door end side, are made of wood material that is easy to process at the construction site. Therefore, according to the sixth aspect of the present invention, the construction cost of the door frame can be reduced compared to when all of the frame materials constituting the door frame are made of metal.

[0023] The seventh invention is characterized in that, in the sixth invention, the vertical frame on the door end side and the frame materials other than the vertical frame on the door end side are each covered with a decorative layer made of the same material.

[0024] In the seventh invention, even if only the vertical frame at the door end is made of metal and the remaining frame materials are made of wood, the door frame can be finished with a unified design by covering all of the frame materials that make up the door frame with a decorative layer made of the same material.

[0025] The eighth invention is an opening structure in which an entrance / exit is formed by a door frame installed in an opening in a wall inside a room, characterized in that the door frame is the door frame related to the fifth invention.

[0026] According to the eighth aspect of the present invention, it is possible to provide an opening structure provided with a door frame that allows the presence or absence of a lock hole to be easily changed. Effect of the Invention

[0027] As described above, according to the present invention, in the front door vertical frame, a groove extending in the vertical direction is formed on the inner surface of the metal vertical frame body, and a shielding member that covers the bottom of the groove is provided in a removable manner within the groove, so that the presence or absence of a lock receiving hole can be easily changed simply by replacing the shielding member.Therefore, it is possible to provide a metal front door vertical frame in which the presence or absence of a lock receiving hole can be easily changed, a door frame equipped with said front door vertical frame, and an opening structure in which said door frame is installed. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 is a front view of an opening structure in which a door frame having a door-end vertical frame according to a first embodiment of the present invention is provided in an opening portion. [Diagram 2]FIG. 2 is a cross-sectional view of the aperture structure of FIG. [Diagram 3] FIG. 3 is an enlarged view of the area near the vertical frame on the door end side of FIG. [Figure 4] FIG. 4 is an inner side view of the door-end vertical frame according to the first embodiment of the present invention. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is an enlarged view of portion VII of FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] FIG. 9 is a view corresponding to FIG. 8 according to the first modified example of the first embodiment. [Figure 10] FIG. 10 is a view corresponding to FIG. 8 according to the second modification of the first embodiment. [Figure 11] FIG. 11 is a view corresponding to FIG. 8 according to the third modification of the first embodiment. [Figure 12] FIG. 12 is a view corresponding to FIG. 8 according to the fourth modified example of the first embodiment. [Figure 13] FIG. 13 is a front view of an opening structure in which a door frame having a door-end vertical frame according to the second embodiment of the present invention is provided in an opening portion. [Figure 14] FIG. 14 is a cross-sectional view of the aperture structure of FIG. [Figure 15] FIG. 15 is an enlarged view of the area near the vertical frame on the door end side in FIG. [Figure 16] FIG. 16 is a front view of an opening structure in which a door frame having a door-end vertical frame according to the third embodiment of the present invention is provided in an opening portion. [Figure 17] FIG. 17 is a cross-sectional view of the aperture structure of FIG. [Figure 18] FIG. 18 is an enlarged view of the area near the vertical frame on the door end side in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. The following description of the embodiments is merely illustrative in nature and is not intended to limit the present invention, its application, or its uses.

[0030] First Embodiment of the Invention -Outline of opening structure- 1 and 2 are diagrams showing an example of an opening structure 70 in which an entrance is formed by a door frame 1 equipped with a door-end vertical frame 2 according to the first embodiment of the present invention and the door frame 1 provided at an opening O in a wall W inside a room. 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 described as "left," "right," "upper," and "lower," respectively. Also, the near side in the direction perpendicular to the paper surface of FIG. 1 will be described as "front," and the far side as "rear."

[0031] As shown in Figs. 1 and 2, the wall W is a wall with a large wall structure, and an opening O is provided with left and right pillars A, A (structure) provided within the wall W, a lintel B (structure) horizontally disposed between the left and right pillars A, A, and a pair of wall base materials C, C provided in front and behind the left and right pillars A, A and the lintel B. The opening structure 70 is formed by providing a door frame 1 in the opening O of the wall W to form an entrance. The door frame 1 is provided with a door D for opening and closing the entrance. In this embodiment 1, the door D is configured as a hanging door that is attached inside the door frame 1 so as to be slidable in the left-right direction and opens and closes the entrance formed by the door frame 1.

[0032] -Detailed configuration of door frame- The door frame 1 is a three-sided gate-shaped frame consisting of a pair of vertical frames 2, 3 and a top frame 4 that connects the upper ends of the pair of vertical frames 2, 3, and a mullion 5 extending in the vertical direction is attached to the middle part in the left-right direction of the top frame 4. The door frame 1 is installed in an opening O of a wall W with the frame materials 2 to 5 that make up the door frame 1 being framed.

[0033] Of the frame materials (a pair of vertical frames 2, 3, a top frame 4, and a mullion 5) that make up the door frame 1, the front vertical frame 2 is made of a metal material, while the other frame materials (the trailing edge vertical frame 3, the top frame 4, and the mullion 5) are made of wood. The metal front vertical frame 2 and the other frame materials 3 to 5 are each covered with a decorative layer 6 made of the same material. In this embodiment 1, the decorative layer 6 is made of a decorative sheet, but the decorative layer 6 may also be a layer made of paint or resin, or may be veneer.

[0034] The pair of vertical frames 2, 3 are composed of a leading-side vertical frame 2 provided on the leading side of the door D and a trailing-side vertical frame 3 provided on the trailing-side of the door D. The pair of vertical frames 2, 3 are formed with a vertical length that is approximately equal to the height of the opening O (the distance between the floor surface F and the bottom surface of the lintel B). The leading-side vertical frame 2 has a length in the projection direction that is longer than the thickness of the wall W. On the other hand, the trailing-side vertical frame 3 is constructed in front of the retaining wall w1 that is provided in the opening O and formed integrally with the wall W, so that the length in the projection direction is shorter than the thickness of the wall W. The leading-side vertical frame 2 is configured to have a cylindrical vertical frame body 21 (hollow member) whose four side surfaces are made of plate-shaped metal members, and the trailing-side vertical frame 3 is made of a wooden band-shaped member.

[0035] The upper frame 4 is made of a wooden plate member having an L-shape in a plan view as shown in Fig. 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 be vertically connected). Although not shown, a rail for suspending the door D, which is a hanging door, is embedded in the lower end of the upper frame 4.

[0036] The mullion 5, like the pair of vertical frames 2, 3, is formed with a vertical length approximately equal to the height of the opening O (the distance between the floor surface F and the underside of the lintel B), and is fixed to the middle part of the left-right direction of the top frame 4 and installed at the tip of the buttress w1. The length of the mullion 5 in the prospective direction is longer than the thickness of the buttress w1. Like the trailing-end vertical frame 3, the mullion 5 is composed of a wooden band-shaped member.

[0037] Incidentally, the feature of the present invention is the leading edge vertical frame 2 among the frame members 2 to 5 that make up the door frame 1, so the leading edge vertical frame 2 will be described in detail below.

[0038] [Vertical frame at the end of the door] The end-side vertical frame 2 is configured so that if a door frame 1 is constructed with an end-side vertical frame 2 having an incorrect presence, position or number of lock receiving holes h3, the presence, position or number of lock receiving holes h3 can be easily changed without removing the door frame 1. Specifically, as shown in Figures 3 and 4, the end-side vertical frame 2 is configured so that the presence, position or number of lock receiving holes h3 can be easily changed without removing the door frame 1 by being composed of two members, a vertical frame main body 21 and a shielding member 22.

[0039] The vertical frame main body 21 is a tubular member whose four circumferential side surfaces are made of plate-like metal members, and in the first embodiment, is made up of two parts: a main body portion 23 and a fixing portion 24.

[0040] The main body 23 is formed by bending a plate-shaped metal member, and has a front outer side surface portion 23a (a portion extending from the end of the wall base material C on the front side of the wall W to the front side), a front surface portion 23b, an inner side surface portion 23c, a rear surface portion 23d, and a rear outer side surface portion 23e (a portion extending from the end of the wall base material C on the rear side of the wall W to the rear side). The inner side surface portion 23c of the main body 23 has a screw insertion hole v1 through which a screw 91 for fixing the vertical frame main body 21 to the pillar A is inserted. In this embodiment 1, as shown in FIG. 4, four screw insertion holes v1 are formed in the center of the inner side surface portion 23c of the main body 23 in the prospective direction, and are arranged at equal intervals in the vertical direction. In addition, a screw concealing cap c1 for concealing the screw insertion hole v1 is inserted into the screw insertion hole v1.

[0041] The fixing portion 24 is formed of a plate-shaped metal member. The length of the fixing portion 24 in the prospective direction is longer than the distance between the front outer side surface portion 23a and the rear outer side surface portion 23e of the main body portion 23. The fixing portion 24 is provided on the inside of the front outer side surface portion 23a and the rear outer side surface portion 23e of the main body portion 23 so as to block the space between the front outer side surface portion 23a and the rear outer side surface portion 23e of the main body portion 23 from the inside. The fixing portion 24 is fixed to a pillar A provided in the wall W by a screw 91 inserted from a screw insertion hole v1 formed in the inner side surface portion 23c of the main body portion 23. In this way, the fixing portion 24 provided on the inside of the front outer side surface portion 23a and the rear outer side surface portion 23e of the main body portion 23 is fixed to the pillar A, so that the vertical frame main body 21 is fixed to the pillar A.

[0042] The front surface of the vertical frame main body 21 is formed by the front surface portion 23b of the main body portion 23, the inner surface of the vertical frame main body 21 is formed by the inner surface portion 23c of the main body portion 23, the rear surface of the vertical frame main body 21 is formed by the rear surface portion 23d of the main body portion 23, and the outer surface of the vertical frame main body 21 is formed by the front outer surface portion 23a and rear outer surface portion 23e of the main body portion 23 and the fixing portion 24.

[0043] A groove 25 extending in the up-down direction is formed on the inner surface (inner surface portion 23c of main body portion 23) of the vertical frame main body 21. The groove 25 is formed by outwardly recessing the inner surface portion 23c of main body portion 23, and is formed so as to extend from the upper end to the lower end of the vertical frame main body 21. In this embodiment 1, the groove 25 is formed so as to have a groove depth of about 7 to 17 mm, a width of about 35 to 50 mm, and a rectangular cross section.

[0044] In the present embodiment 1, the recessed groove 25 constitutes a door clearance groove into which the door edge of the door D, which is a hanging door, fits. Although details will be described later, the groove bottom 26 of the recessed groove 25 is formed with two lock receiving holes h1, h2 into which the lock receiving member 50 fits. In the present embodiment 1, the lock receiving holes h1, h2 are rectangular holes that are long in the vertical direction, and are formed to a size into which the main body 53 of the locking member 50, which will be described later, fits. The recessed groove 25 is provided with a shielding member 22 so as to cover the groove bottom 26.

[0045] The shielding member 22 is formed by bending a plate-like metal member into a U-shape, and has a front surface 22a, an inner side surface 22b, and a rear surface 22c that are formed continuously. The shielding member 22 is formed to have a width slightly shorter than the width of the recessed groove 25 so that it can fit into the recessed groove 25 and cover the groove bottom 26. The shielding member 22 is also formed so that the dimension in the front direction is shorter than the groove depth of the recessed groove 25 so that the recessed groove 25 serving as a door flap groove is not filled by the shielding member 22.

[0046] Although details will be described later, the shielding member 22 is configured so that its vertical dimension is shorter than the vertical length of the vertical frame body 21 so that it can be attached and detached into the recessed groove 25 of the vertical frame body 21 without removing the door-end vertical frame 2 from the opening O. Specifically, the vertical length of the shielding member 22 is formed to a length such that, when fixed to the vertical frame body 21, its lower end is located at the lower end of the vertical frame body 21, while its upper end is located below the lower end of the upper frame 4 connected to the vertical frame body 21 (the lower end of the rail when the rail of the hanging door is located below the lower end of the upper frame 4). By configuring the vertical length of the shielding member 22 in this way, the shielding member 22 is configured so that it can be attached and detached into the recessed groove 25 of the vertical frame body 21 without removing the door-end vertical frame 2 from the opening O.

[0047] The inner side surface portion 22b of the shielding member 22 is formed with screw insertion holes v2 through which screws 92 for fixing the shielding member 22 to the vertical frame main body 21 are inserted. In the present embodiment 1, as shown in Fig. 4, four screw insertion holes v2 are formed in the center of the inner side surface portion 22b of the shielding member 22 in the projection direction at the same height position as the screw insertion holes v1 (so as to be aligned at equal intervals in the vertical direction).

[0048] A lock receiving hole h3 into which the lock receiving member 50 fits is formed on the inner side surface portion 22b of the shielding member 22. The lock receiving hole h3 is formed at a height position corresponding to one of the two lock receiving holes h1, h2 (the lower lock receiving hole h2 in FIG. 4) formed in the groove bottom 26 of the recessed groove 25. The lock receiving hole h3 is formed in a size and shape that allows the strike 52 of the lock receiving member 50, which will be described later, to fit therein with almost no gap.

[0049] In addition, in this embodiment 1, in addition to the above-mentioned shielding member 22, so that the presence, position or number of lock receiving hole h3 can be easily changed by simply replacing the shielding member 22 without removing the door frame 1 already installed in the opening O, shielding members 22 without a lock receiving hole h3, a shielding member 22 in which the lock receiving hole h3 is formed at a height position corresponding to the upper lock receiving hole h1 formed in the groove bottom 26 of the groove 25, and a shielding member 22 in which the lock receiving hole h3 is formed at a height position corresponding to both of the two upper lock receiving holes h1, h2 formed in the groove bottom 26 of the groove 25 are prepared.

[0050] (Shielding member fixing structure) The shielding member 22 is detachably fixed to the vertical frame body 21. Specifically, as shown in Figs. 5 and 6, a fixing member 27 having a U-shaped cross section is fixed to the shielding member 22 by welding. Four fixing members 27 are provided to correspond to the four screw insertion holes v2 formed in the inner side surface portion 22b of the shielding member 22, and the upper end and the lower end of each fixing member 27 are fixed to the shielding member 22 by welding. In addition, screw holes v3 into which screws 92 are screwed are formed in the fixing member 27 and the groove bottom 26 of the recessed groove 25 at positions corresponding to the screw insertion holes v2. The shielding member 22 is detachably fixed to the vertical frame body 21 by fixing the fixing member 27 to the groove bottom 26 of the recessed groove 25 by the screws 92 inserted through the screw insertion holes v2 at the installation position in the recessed groove 25. 5 and 6, reference numeral 28 denotes a back plate for fastening the screw 92, and reference numeral c2 denotes a screw concealing cap that is inserted into the screw insertion hole v2 to conceal the screw insertion hole v2.

[0051] (Lock receiving member and lock receiving member mounting structure) As shown in Figs. 7 and 8, the lock receiving member 50 is composed of a box-shaped locking lock 51 that receives a lock, and a plate-shaped striker 52 provided inside the locking lock 51. The locking lock 51 has a main body 53 formed into a box shape by bending a plate-shaped metal member, with an open inner side, and a lid 54 that covers the inner side of the main body 53 except for a lock hole k1. The main body 53 and the lid 54 are fixed by a screw 93. A screw insertion hole v4 through which the screw 94 is inserted is formed at the upper and lower ends of the locking lock 51. The screw insertion hole v4 is formed in two flanges 53a provided above and below the main body 53 of the locking lock 51, and in the upper and lower ends of the lid 54. In addition, a screw hole v5 through which the screw 94 is tightened is formed in the strike 52 at a position corresponding to the screw insertion hole v4. The screw holes v5 are also formed in the two fixing members 29 welded to the shielding member 22.

[0052] (Lock receiving member mounting structure) In the first embodiment, the lock receiving member 50 is fixed to the shielding member 22 by tightening the screw 94 inserted into the screw hole v4 with the strike 52 fitted in the lock receiving hole h3 of the shielding member 22. Specifically, when the screw 94 inserted into the screw hole v4 is tightened with the strike 52 fitted in the lock receiving hole h3 of the shielding member 22, the upper and lower ends of the troyoke 51 and the strike 52 are fixed to the two fixing members 29 welded to the shielding member 22, and the lock receiving member 50 is fixed to the shielding member 22.

[0053] As shown in Figure 8, when the shielding member 22 to which the lock receiving member 50 is fixed is placed at a predetermined installation position within the groove 25 of the vertical frame main body 21 and the shielding member 22 is fixed to the vertical frame main body 21, the main body portion 53 of the troyoke 51 of the lock receiving member 50 fits into the lower lock receiving hole h2 formed in the groove bottom 26 of the groove 25 of the vertical frame main body 21.

[0054] - Door frame construction method - In this embodiment 1, the door frame 1 is installed in the opening O of the wall W with the frame materials (the leading vertical frame 2, trailing vertical frame 3, top frame 4, and mullion 5) that make up the door frame 1 in a framed state. The shielding member 22 of the leading vertical frame 2 may be fixed to the vertical frame main body 21 before being installed in the opening O, or may be fixed to the vertical frame main body 21 after being installed in the opening O.

[0055] -Changing the presence, position or number of lock holes- Next, the procedure for changing the presence, position or number of lock receiving holes h3 when a door frame 1 including a door-end vertical frame 2 has been constructed with an incorrect presence, position or number of lock receiving holes h3 will be described.

[0056] (Work to change the presence or absence of a lock hole) For example, if the door-end vertical frame 2 with the lock receiving member 50 installed has been installed as shown in Figure 4, even though there is no need to install a lock receiving member 50, first remove the four screws 92 to remove the shielding member 22 with the erroneously installed lock receiving hole h3 along with the lock receiving member 50. This allows the main body 53 of the lock receiving member 51 of the lock receiving member 50 to be taken out from the upper lock receiving hole h1 or the lower lock receiving hole h2 formed in the groove bottom 26 of the recessed groove 25 of the vertical frame main body 21.

[0057] Next, a shielding member 22 without a lock receiving hole h3 is prepared, the shielding member 22 is placed at a predetermined position in the recessed groove 25 of the vertical frame body 21 already attached to the opening O, and the shielding member 22 is fixed to the vertical frame body 21 with four screws 92. As a result, the lock receiving holes h1, h2 of the vertical frame body 21 are covered and hidden by the shielding member 22, and the door-end vertical frame 2 becomes a door-end vertical frame 2 without a lock receiving hole h3.

[0058] Conversely, if a lock receiving member 50 is required but the door end vertical frame 2 is installed without the lock receiving member 50, first remove the four screws 92 to remove the erroneously installed shielding member 22 without the lock receiving hole h3.

[0059] Next, a shielding member 22 with a lock receiving hole h3 formed in an appropriate position is prepared, and the lock receiving member 50 is attached to the shielding member 22. The shielding member 22 is placed at a predetermined position in the groove 25 of the vertical frame body 21 already attached to the opening O, and the shielding member 22 is fixed to the vertical frame body 21 with four screws 92. At this time, the main body 53 of the locking member 51 of the lock receiving member 50 fits into the upper lock receiving hole h1 or the lower lock receiving hole h2 formed in the groove bottom 26 of the groove 25 of the vertical frame body 21. As a result, the door end side vertical frame 2 has a lock receiving hole h3, and the lock receiving member 50 is installed in the desired position.

[0060] (Changing the position of the lock hole) For example, if the lock receiving member 50 should be installed in the lower installation position (installation position shown in FIG. 4) of the two installation positions, upper and lower, but the door-end vertical frame 2 is installed in the upper installation position, first, the four screws 92 are removed to remove the shielding member 22 together with the lock receiving member 50. Specifically, the shielding member 22 is removed, with the erroneously installed lock receiving hole h3 formed in the wrong position (the position corresponding to the upper lock receiving hole h1 of the groove bottom 26 of the groove 25 when the shielding member 22 is installed in the groove 25). As a result, the main body 53 of the lock receiving member 50 is taken out from the upper lock receiving hole h1 formed in the groove bottom 26 of the groove 25 of the vertical frame main body 21.

[0061] After removing the shielding member 22 in which the lock receiving hole h3 is formed in the wrong position, the lock receiving member 50 is removed from the shielding member 22 by removing the two screws 94.

[0062] Next, a shielding member 22 is prepared with a lock receiving hole h3 formed in an appropriate position (here, a position corresponding to the lower lock receiving hole h2 on the groove bottom 26 of the groove 25 when the shielding member 22 is provided in the groove 25), and a lock receiving member 50 is attached to the shielding member 22. The shielding member 22 is placed at a predetermined position in the groove 25 of the vertical frame main body 21 that has already been attached to the opening O, and the shielding member 22 is fixed to the vertical frame main body 21 with four screws 92. This causes the lock receiving member 50 to be installed in the desired position (the lower installation position shown in Figure 4 among the upper and lower installation positions). At this time, the main body 53 of the lock receiving member 50's troyoke 51 fits into the lower lock receiving hole h2 formed in the groove bottom 26 of the groove 25 of the vertical frame main body 21.

[0063] (Changing the number of lock holes) In this embodiment 1, even if the door-end vertical frame 2 is constructed so that the lock receiving member 50 is only installed at one of the two installation positions, top and bottom, while the lock receiving member 50 should be installed at both of the two installation positions, the number of lock receiving holes h3 can be easily changed (from one to two) by simply replacing the shielding member 22 without removing the door frame 1, and the number of installation positions for the lock receiving member 50 can be easily changed.

[0064] Specifically, first, in the same manner as in the position change described above, the shielding member 22 is removed together with the lock receiving member 50 by removing the four screws 92, and then the lock receiving member 50 is removed from the shielding member 22 by removing the two screws 94.

[0065] Next, in addition to the removed lock receiving member 50, another lock receiving member 50 is prepared, and a shielding member 22 is prepared in which an appropriate number of lock receiving holes h3 are formed (here, one each at the top and bottom so as to correspond to the two lock receiving holes h1, h2 at the groove bottom 26 of the recessed groove 25 when the shielding member 22 is installed in the recessed groove 25), and the two lock receiving members 50 (the removed lock receiving member 50 and a separately prepared lock receiving member 50) are attached to the shielding member 22. The shielding member 22 is placed at a predetermined position in the recessed groove 25 of the vertical frame main body 21 that has already been attached to the opening O, and the shielding member 22 is fixed to the vertical frame main body 21 with four screws 92. As a result, the lock receiving member 50 is installed in the desired position (both the top and bottom installation positions). At this time, the main body 53 of the troyoke 51 of the upper lock receiving member 50 fits into the upper lock receiving hole h1 formed in the groove bottom 26 of the groove 25 of the vertical frame body 21, and the main body 53 of the troyoke 51 of the lower lock receiving member 50 fits into the lower lock receiving hole h2 formed in the groove bottom 26 of the groove 25 of the vertical frame body 21.

[0066] As described above, in this embodiment 1, lock receiving holes h1, h2 are formed in two locations on the groove bottom 26 of the recessed groove 25 of the vertical frame main body 21, which correspond to the two upper and lower installation positions of the lock receiving member 50, and there are also provided a shielding member 22 without a lock receiving hole h3, a shielding member 22 with a lock receiving hole h3 formed at a height position corresponding to the lock receiving hole h1, a shielding member 22 with a lock receiving hole h3 formed at a height position corresponding to the lock receiving hole h2, and a shielding member 22 with a lock receiving hole h3 formed at a height position corresponding to both of the two upper lock receiving holes h1, h2 formed in the groove bottom 26 of the recessed groove 25. Therefore, even if an incorrect door end vertical frame 2 without a lock hole h3 is installed for a locked door D, or an incorrect door end vertical frame 2 with a lock hole h3 formed for a door D that does not require a lock, the presence or absence of the lock hole h3 can be easily changed by simply removing only the shielding member 22 of the door end vertical frame 2 without removing the entire door frame 1 and replacing it with an appropriate shielding member 22 (a shielding member 22 with a lock hole h3 formed for a locked door D, and a shielding member 22 without a lock hole h3 for a door D that does not require a lock). Also, even if an incorrect door end vertical frame 2 is installed in which the position (height) of the key hole h3 does not correspond to the position of the door lock, the position of the lock hole h3 can be easily changed by simply removing only the shielding member 22 without removing the door frame 1 and replacing it with a shielding member 22 with the lock hole h3 formed in an appropriate position. Furthermore, even if the door-end vertical frame 2 is constructed so that the lock receiving member 50 is only installed at one of the upper and lower installation positions when the lock receiving member 50 should be installed at both of the two installation positions, the number of lock receiving holes h3 can be easily changed (from one to two) by simply replacing only the shielding member 22 without removing the door frame 1, and the number of installation positions for the lock receiving member 50 can be easily changed.

[0067] -Effects of embodiment 1- In this embodiment 1, in the door-end vertical frame 2, a groove 25 extending in the vertical direction is formed on the inner surface (inner surface portion 23c of the main body portion 23) of the metal vertical frame main body 21, and a shielding member 22 that covers the groove bottom 26 is provided within the groove 25. Lock receiving holes h1 to h3 into which a lock receiving member 50 fits are formed not only in the shielding member 22 but also in the groove bottom 26 of the groove 25, and the shielding member 22 is fixed to the vertical frame main body 21 in a removably attachable manner. With such a configuration of the door-end vertical frame 2, even if an incorrect door-end vertical frame 2 without a lock hole h3 is installed for a door D with a lock, or an incorrect door-end vertical frame 2 with a lock hole h3 formed for a door D that does not require a lock, the presence or absence of the lock hole h3 can be easily changed without removing the entire door frame 1, by simply removing only the shielding member 22 of the door-end vertical frame 2 and replacing it with an appropriate shielding member 22 (a shielding member 22 with a lock hole h3 formed for a door D with a lock, or a shielding member 22 without a lock hole h3 for a door D that does not require a lock).

[0068] According to the first embodiment, the lock receiving holes h1, h2 into which the lock receiving member 50 formed in the groove bottom 26 of the recessed groove 25 fits are formed to correspond to possible locations (two in the first embodiment) for installing the lock receiving member 50, so even if an incorrect door end vertical frame 2 is constructed in which the position (height) of the key receiving hole h3 does not correspond to the position of the door lock, the position of the lock receiving hole h3 can be easily changed by only removing the shielding member 22 of the door end vertical frame 2 and replacing it with a shielding member 22 in which the lock receiving hole h3 is formed in an appropriate position, without removing the entire door frame 1. The lock receiving holes h1, h2 of the vertical frame body 21 can be selected by selecting the lock receiving holes h1, h2 that correspond to the lock receiving hole h3 of the shielding member 22.

[0069] Furthermore, according to this embodiment 1, the lock receiving holes h1, h2 into which the lock receiving member 50 formed in the groove bottom 26 of the recessed groove 25 fits are formed to correspond to the possible installation locations of the lock receiving member 50 (two in this embodiment 1). Therefore, even if the lock receiving member 50 should be installed in both of the two upper and lower installation locations but the door end vertical frame 2 is installed only at one of the upper and lower locations, the number of lock receiving holes h3 can be easily changed (from one location to two locations) by simply replacing only the shielding member 22 without removing the door frame 1, and the number of installation locations for the lock receiving member 50 can be easily changed.

[0070] As described above, according to the first embodiment, it is possible to provide a metal door-end vertical frame 2 in which the presence or absence, position or number of lock receiving holes h3 can be easily changed.

[0071] In the first embodiment, the bottom of a groove of a conventional door-side clearance groove provided in a door-side vertical frame 2 for a hanging door is utilized as the recessed groove 25. With this configuration, it is possible to provide a metal door-side vertical frame 2 that can easily change the presence, position, or number of lock receiving holes h3 without significantly changing the configuration of a conventional door-side vertical frame 2 having a door-side clearance groove.

[0072] Furthermore, in this embodiment 1, by including the above-mentioned door-end vertical frame 2, it is possible to provide a door frame 1 in which the presence, absence, position or number of lock receiving holes h3 can be easily changed.

[0073] In addition, in this embodiment 1, among the frame materials 2 to 5 constituting the door frame 1, the frame materials 3 to 5 other than the door-end vertical frame 2 are made of a wooden material that is easy to process at the construction site. Therefore, according to this embodiment 1, the construction cost of the door frame 1 can be reduced compared to when all of the frame materials 2 to 5 constituting the door frame 1 are made of metal.

[0074] In the first embodiment, the metal door-end vertical frame 2 and the frame members 3-5 other than the door-end vertical frame 2 among the frame members 2-5 constituting the door frame 1 are each covered with a decorative layer 6 made of the same material. With this configuration, even if only the door-end vertical frame 2 is made of metal and the remaining frame members 3-5 are made of wood, the door frame 1 can be finished with a unified design by covering all of the frame members 2-5 constituting the door frame 1 with the decorative layer 6 made of the same material.

[0075] Moreover, in the first embodiment, it is possible to provide an opening structure 70 provided with a door frame 1 in which the presence or absence, position or number of lock receiving holes h3 can be easily changed.

[0076] -Modification 1 of embodiment 1- As shown in Figure 9, variant example 1 of embodiment 1 is a door frame 1 of embodiment 1, in which the door-end vertical frame 2 has been modified so that the lock receiving hole h3 into which the lock receiving member 50 fits is formed only in the shielding member 22, and the lock receiving holes h1, h2 are not formed in the groove bottom 26 of the recessed groove 25 of the vertical frame main body 21.

[0077] Specifically, in the first modification, as shown in Fig. 9, the depth of the recessed groove 25 is formed deeper than that of the first embodiment. Also, the front surface portion 22a and the rear surface portion 22c of the shielding member 22 are formed so that their front-facing lengths (left-right lengths) are longer than those of the first embodiment. Specifically, the front surface portion 22a and the rear surface portion 22c of the shielding member 22 are formed so that the lock receiving member 50 fits between the inner surface portion 22b of the shielding member 22 and the groove bottom 26 of the recessed groove 25 when the lock receiving member 50 is fixed to the shielding member 22. The other configurations are similar to those of the first embodiment, and therefore description thereof will be omitted.

[0078] In the first modification, a groove 25 extending in the vertical direction is formed on the inner surface (inner surface portion 23c of the main body portion 23) of a metal vertical frame body 21 in the door-end vertical frame 2, a shielding member 22 that covers and conceals the groove bottom 26 is provided in the groove 25, and a lock receiving hole h3 into which a lock receiving member 50 fits is formed only in the shielding member 22, and the shielding member 22 is detachably fixed to the vertical frame body 21. The first modification thus configured can provide a metal door-end vertical frame 2 in which the presence, position, or number of the lock receiving hole h3 can be easily changed, as in the first embodiment. Furthermore, the first modification can also achieve all of the other effects achieved by the first embodiment.

[0079] -Modification 2 of embodiment 1- In the modified example 2 of the first embodiment, as shown in Fig. 10, the configuration of the shielding member 22 of the door-end vertical frame 2 in the door frame 1 of the first embodiment is changed. Specifically, in the modified example 2, the shielding member 22 is made of a wooden band-shaped member having a substantially rectangular cross section. In the modified example 2, as shown in Fig. 10, the shielding member 22 is formed with not only the strike 52 of the lock receiving member 50 but also a lock receiving hole h3 into which a part of the main body 53 and the cover 54 of the troyoke 51 fit.

[0080] The other configurations are the same as those of the first embodiment, and therefore description thereof will be omitted. The second modification can also achieve all of the effects achieved by the first embodiment.

[0081] -Modification 3 of embodiment 1- As shown in Fig. 11, in the door frame 1 of the first embodiment, the door end vertical frame 2 is changed to a door end vertical frame 2 in which the lock receiving hole h3 into which the lock receiving member 50 fits is formed only in the shielding member 22 as in the first embodiment, and further, as in the second embodiment, the shielding member 22 is formed of a wooden band-shaped member having a substantially rectangular cross section. As in the first embodiment, the depth of the recessed groove 25 is formed deeper than in the first embodiment, and the lock receiving holes h1 and h2 are not formed in the groove bottom 26 of the recessed groove 25 of the vertical frame body 21. As in the second embodiment, the shielding member 22 is formed with a lock receiving hole h3 into which not only the strike 52 of the lock receiving member 50 but also a part of the body part 53 and the cover part 54 of the troyoke 51 fit.

[0082] The other configurations are the same as those of the first embodiment, and therefore the description will be omitted. The third modification can also achieve all of the effects achieved by the first embodiment.

[0083] -Modification 4 of embodiment 1- In the fourth modified example of the first embodiment, as shown in Fig. 12, in the door frame 1 of the first embodiment, the shielding member 22 is configured by a thin band-shaped member made of resin. In the fourth modified example, the shielding member 22 is formed with a lock receiving hole h3 into which the strike 52 of the lock receiving member 50 and the flange portion 53a and lid portion 54 of the main body portion 53 of the troyoke 51 fit, and the groove bottom 26 of the recessed groove 25 of the vertical frame main body 21 is formed with lock receiving holes h1 and h2 that are shorter in length in the up-down direction than the lock receiving holes h1 and h2 of the first embodiment, into which the recess 53b of the main body portion 53 of the troyoke 51 of the lock receiving member 50 fits but the flange portion 53a does not fit.

[0084] In the fourth modification, the shielding member 22 is fixed to the groove bottom 26 of the recessed groove 25 of the vertical frame body 21 by a screw 92, as in the first embodiment. The lock receiving member 50 is fixed to the vertical frame body 21 by fixing the strike 52 and the flange portion 53a and the cover portion 54 of the main body portion 53 of the troyoke 51 to the groove bottom 26 of the recessed groove 25 of the vertical frame body 21 by two screws 94.

[0085] Other configurations are the same as those of the first embodiment, and therefore description thereof will be omitted. All of the effects of the first embodiment can be achieved with the fourth modification. Moreover, according to the fourth modification, the shielding member 22 is made of a resin material, and therefore the shielding member 22 can also be used as a door stop. Therefore, there is no need to provide a separate door stop.

[0086] Second Embodiment of the Invention In the second embodiment, as shown in Figs. 13 to 15, a door-end vertical frame 2 according to the present invention is used in an offset door frame 1. In the second embodiment, an example in which the door D is a hanging door will also be described. In the second embodiment, the rail R for suspending the door D, which is a hanging door, is provided on the front side of the wall W. Therefore, the door D opens and closes the entrance formed by the door frame 1 by sliding left and right on the front side of the wall W.

[0087] -Detailed configuration of door frame- 13 and 14, the door frame 1 is a three-sided frame formed into a gate shape by a pair of vertical frames 2, 3 and an upper frame 4 that connects the upper ends of the pair of vertical frames 2, 3. The door frame 1 is installed in an opening O of a wall W with the frame members 2 to 4 that make up the door frame 1 being framed.

[0088] As in the first embodiment, of the frame materials (a pair of vertical frames 2, 3 and an upper frame 4) that make up the door frame 1, the leading vertical frame 2 is made of a metal material, and the other frame materials (the trailing vertical frame 3 and the upper frame 4) are made of a wooden material. The metal leading vertical frame 2 and the other frame materials 3, 4 are each covered with a decorative layer 6 made of the same material. In the second embodiment, the decorative layer 6 is made of a decorative sheet, but the decorative layer 6 may also be a layer made of paint.

[0089] The pair of vertical frames 2, 3 are composed of a leading-side vertical frame 2 provided on the leading side of the door D and a trailing-side vertical frame 3 provided on the trailing-side of the door D. The pair of vertical frames 2, 3 are formed with a vertical length that is approximately equal to the height of the opening O (the distance between the floor surface F and the bottom surface of the lintel B). The pair of vertical frames 2, 3 have a length in the projection direction that is longer than the thickness of the wall W. The leading-side vertical frame 2 is also longer in the projection direction than the trailing-side vertical frame 3, and is provided so as to protrude significantly from the front surface of the wall W toward the near side, so that a recessed groove 25 that constitutes a door slit groove, which will be described later, is formed on the near side of the wall W. The leading-side vertical frame 2 is configured to have a cylindrical vertical frame body 21 (hollow member) whose four side surfaces are made of plate-shaped metal members, and the trailing-side vertical frame 3 is configured of a wooden band-shaped member.

[0090] The upper frame 4 is made of a wooden plate-like member having a rectangular shape in a plan view as shown in Fig. 14. 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 be vertically joined).

[0091] Incidentally, the feature of the present invention is the leading edge vertical frame 2 among the frame members 2 to 4 that make up the door frame 1, so the leading edge vertical frame 2 will be described in detail below.

[0092] [Vertical frame at the end of the door] In the second embodiment, as in the first embodiment, the end-side vertical frame 2 is configured so that if a door frame 1 is constructed with an end-side vertical frame 2 having an incorrect presence, position or number of lock receiving holes h3, the position and presence of the lock receiving holes h3 can be easily changed without removing the door frame 1. Also, in the second embodiment, as shown in Fig. 15, the end-side vertical frame 2 is configured so that the presence, position or number of the lock receiving holes h3 can be easily changed without removing the door frame 1 by being composed of two members, the vertical frame main body 21 and the shielding member 22.

[0093] The vertical frame body 21 is generally configured similarly to the first embodiment, is a tubular member whose four circumferential sides are made of plate-like metal members, and is configured of two parts, a main body part 23 and a fixing part 24. In the second embodiment, the main body part 23 is formed so that the lengths of the front outer side part 23a (part extending forward from the end of the wall base material C on the front side of the wall W) and the inner side part 23c in the prospective direction are longer than those in the first embodiment, while the length of the front part 23b in the prospective direction is shorter than that in the first embodiment. Also, in the second embodiment, as described above, the recessed groove 25 constituting the door clearance groove is formed in the part of the inner side part 23c of the main body part 23 (the inner side of the vertical frame body 21) on the front side of the wall W.

[0094] Incidentally, in this kind of offset type door frame 1, a side wall is often not provided on the front side of the door clearance groove (recessed groove 25). However, in the door frame 1 in which the door end side vertical frame 2 is made of metal to improve durability in consideration of collisions with wheelchairs, etc., as in the present application, if a side wall is not provided on the front side of the door clearance groove (recessed groove 25), there is a risk that the shielding member 22 in the door clearance groove (recessed groove 25) will be damaged or come off when hit by a wheelchair or the like.

[0095] Therefore, in embodiment 2, a folded portion 21X is provided on the front side of the vertical frame main body 21's groove 25 by folding a plate-shaped metal member back into a U-shape, the front side of which becomes part of the front side of the vertical frame main body 21 and the rear side of which becomes the groove side surface on the front side of the groove 25.

[0096] In the second embodiment, the shielding member 22 is made of a wooden band-shaped member having a substantially rectangular cross section, as in the second modified example of the first embodiment. In the second embodiment, the shielding member 22 is also formed to have a width slightly shorter than the width of the groove 25 so that it can fit into the groove 25 and cover the groove bottom 26. The shielding member 22 is also formed to have a dimension in the front direction shorter than the groove depth of the groove 25 so that the groove 25 serving as a door flap is not filled by the shielding member 22.

[0097] Also in the second embodiment, the shielding member 22 is configured so that its vertical dimension is shorter than the vertical length of the vertical frame body 21 so that it can be attached and detached into the recessed groove 25 of the vertical frame body 21 without removing the door-end vertical frame 2 from the opening O. Specifically, the vertical length of the shielding member 22 is formed to a length such that, when fixed to the vertical frame body 21, its lower end is located at the lower end of the vertical frame body 21, while its upper end is located below the lower end of the rail R (the lower end of the rail frame). By configuring the vertical length of the shielding member 22 in this way, the shielding member 22 is configured so that it can be attached and detached into the recessed groove 25 of the vertical frame body 21 without removing the door-end vertical frame 2 from the opening O.

[0098] In addition, similar to variant example 2 of embodiment 1 (see FIG. 10), the shielding member 22 is formed with a lock receiving hole h3 into which not only the strike 52 of the lock receiving member 50 but also a part of the main body 53 and the cover portion 54 of the troyoke 51 fit.

[0099] Other configurations, the method of constructing the door frame, and the procedure for changing the presence, position or number of lock holes are generally similar to those of embodiment 1, so explanations will be omitted.

[0100] The second embodiment can also achieve the same effects as the first embodiment.

[0101] In addition, in offset door frames, a side wall is often not provided on the front side of the door clearance groove of the vertical frame body, but in the second embodiment, in order to provide the shielding member 22 inside the door clearance groove (concave groove 25), a folded portion 21X is provided by folding back a plate-shaped metal member on the front side of the door clearance groove (concave groove 25), so that a side wall is formed on the front side of the door clearance groove (concave groove 25). Therefore, according to the second embodiment, when, for example, a wheelchair hits the door-end vertical frame 2, the shielding member 22 can be prevented from being damaged or detached.

[0102] -Modification of the second embodiment- In embodiment 2, the shielding member 22 is described as being made of a wooden band-shaped member having an approximately rectangular cross-section, as in variant example 2 of embodiment 1. However, as in embodiment 1, in the door-end vertical frame 2 of embodiment 2, the shielding member 22 may also be formed of a plate-shaped metal member bent into a U-shape.

[0103] Furthermore, in the door-end vertical frame 2 of embodiment 2, as in variant example 1 of embodiment 1, the depth of the groove 25 may be made deeper than in embodiment 2, and a shielding member 22 similar to that of variant example 1 of embodiment 1 may be used, with the lock receiving hole h3 being formed only in the shielding member 22.

[0104] Furthermore, in the door-end vertical frame 2 of embodiment 2, as in variant example 3 of embodiment 1, the depth of the groove 25 may be made deeper than in embodiment 2, and a shielding member 22 similar to that of variant example 3 of embodiment 1 may be used, with the lock receiving hole h3 being formed only in the shielding member 22.

[0105] Furthermore, in the door-end vertical frame 2 of the second embodiment, similarly to the fourth modified example of the first embodiment, the shielding member 22 may be made of a thin band-shaped member made of resin.

[0106] In addition, in the second embodiment, the folded portion 21X is formed by folding back a plate-shaped metal member into a U-shape, but the folded portion 21X may be formed by folding back a plate-shaped metal member so that the width in the projection direction is narrower than that of the second embodiment. Even in this case, the same effect as that of the second embodiment can be achieved.

[0107] Third embodiment of the invention In the third embodiment, as shown in Figs. 16 to 18, the door end vertical frame 2 according to the present invention is used in a retractable door frame 1. In the third embodiment, an example in which the door D is a hanging door will also be described. In the third embodiment, a storage space S is formed between two door pocket walls w2, w2 that are formed integrally with the wall W on the door end side of the door D and arranged with a gap between them, and the door D, which is a hanging door, is configured to be retracted into the storage space S and stored in it when the doorway is open and not closed.

[0108] -Detailed configuration of door frame- As shown in Figs. 16 and 17, the door frame 1 is a three-sided frame formed by framing a pair of vertical frames 2, 3 and an upper frame 4 connecting the upper ends of the pair of vertical frames 2, 3 in a gate shape. In the third embodiment, the end-of-door vertical frame 3 is composed of two vertical frame members 3a, 3a so as not to block the storage space S. In the third embodiment, mullions 5, 5 extending in the vertical direction are detachably attached to the door-end side ends (left ends) of the two vertical frame members 3a, 3a. The door frame 1 is installed in the opening O of the wall W with the frame members 2 to 4 constituting the door frame 1 being framed.

[0109] As in the first embodiment, of the frame materials (a pair of vertical frames 2, 3, a top frame 4, and a mullion 5, 5) that make up the door frame 1, the front vertical frame 2 is made of metal material, while the other frame materials (the two vertical frame members 3a, 3a that make up the trailing edge vertical frame 3, the top frame 4, and the mullion 5, 5) are made of wood material. The metal front vertical frame 2 and the other frame materials 3 to 5 are each covered with a decorative layer 6 made of the same material. In the third embodiment, the decorative layer 6 is made of a decorative sheet, but the decorative layer 6 may also be a layer made of paint.

[0110] The pair of vertical frames 2, 3 are composed of a leading-side vertical frame 2 provided on the leading side of the door D and a trailing-side vertical frame 3 provided on the trailing-side of the door D. The pair of vertical frames 2, 3 are formed with a vertical length that is approximately equal to the height of the opening O (the distance between the floor surface F and the lower surface of the lintel B). The leading-side vertical frame 2 has a length in the projection direction that is longer than the thickness of the wall W. On the other hand, the trailing-side vertical frame 3 is composed of two vertical frame members 3a, 3a, and each vertical frame member 3a has a length in the projection direction that is shorter than the thickness of the wall W and longer than the thickness of the front and rear door pocket walls w2, w2 of the storage space S. The leading-side vertical frame 2 is configured to have a cylindrical vertical frame body 21 (hollow member) whose four circumferential sides are made of plate-shaped metal members, and each vertical frame member 3a of the trailing-side vertical frame 3 is made of a wooden band-shaped member.

[0111] The upper frame 4 is made of a wooden plate-like member having a rectangular shape in a plan view as shown in Fig. 17. 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 be vertically joined).

[0112] The mullions 5, 5 are formed with a vertical length approximately equal to the distance between the floor surface F and the lower end surface of the upper frame 4, and are detachably attached to the door end side (left side) of the two vertical frame members 3a, 3a that make up the trailing edge vertical frame 3. The length of the mullions 5 in the prospective direction is shorter than the length of the vertical frame member 3a in the prospective direction. The mullions 5, 5 are made of a wooden band-shaped member, similar to the vertical frame member 3a. When attached, the mullions 5, 5 block the gap between the door D and the trailing edge vertical frame 3 when the door D is in the closed state and viewed from the front and rear directions. On the other hand, when the door D is to be removed for maintenance or the like, the door D can be easily removed and installed by removing the mullions 5, 5.

[0113] Incidentally, the feature of the present invention is the leading edge vertical frame 2 among the frame members 2 to 5 that make up the door frame 1, so the leading edge vertical frame 2 will be described in detail below.

[0114] [Vertical frame at the end of the door] In the third embodiment, as in the first embodiment, the end-side vertical frame 2 is configured so that if a door frame 1 is constructed with an end-side vertical frame 2 having an incorrect presence, position or number of lock receiving holes h3, the presence, position or number of lock receiving holes h3 can be easily changed without removing the door frame 1. Also, in the third embodiment, as shown in Fig. 18, the end-side vertical frame 2 is configured so that the presence, position or number of lock receiving holes h3 can be easily changed without removing the door frame 1 by being composed of two members, the vertical frame main body 21 and the shielding member 22.

[0115] The vertical frame body 21 is generally configured similarly to the first embodiment, is a tubular member whose four circumferential sides are made of plate-like metal members, and is configured of two parts, a main body part 23 and a fixing part 24. In the third embodiment, a groove 25 constituting a door clearance groove is formed in the center part in the front-rear direction of the inner side part 23c of the main body part 23 (the inner side of the vertical frame body 21). Therefore, in the first embodiment, the screw insertion hole v1 is formed in a part other than the groove 25 of the inner side part 23c of the main body part 23, but in the third embodiment, it is formed in the groove bottom 26 of the groove 25. In the third embodiment, the screw insertion hole v1 is formed at a different height position from the screw insertion hole v2 so that the screw insertion hole v1 does not overlap with the screw hole v3 formed in the groove bottom 26 of the same groove 25.

[0116] Other configurations, the method of constructing the door frame, and the procedure for changing the presence, position, or number of lock holes are generally similar to those of the first embodiment, and therefore will not be described here. The third embodiment can also achieve the same effects as the first embodiment.

[0117] -Modification of the third embodiment- In embodiment 3, lock receiving holes h1 to h3 are formed in both the groove bottom 26 of the groove 25 of the vertical frame main body 21 and in the shielding member 22, and the lock receiving member 50 is configured to fit into both lock receiving holes h1, h3 / h2, h3. However, in the door-end vertical frame 2 of embodiment 3, as in variant example 1 of embodiment 1, the depth of the groove 25 may be made deeper than in embodiment 3, and a shielding member 22 similar to variant example 1 of embodiment 1 may be used, with the lock receiving hole h3 formed only in the shielding member 22.

[0118] In addition, in embodiment 3, the shielding member 22 is formed from a plate-shaped metal member bent into a U-shape, but as in variant example 2 of embodiment 1, in the door-end vertical frame 2 of embodiment 3, the shielding member 22 may also be formed from a wooden band-shaped member having an approximately rectangular cross-section.

[0119] Furthermore, in the door-end vertical frame 2 of embodiment 3, as in variant example 3 of embodiment 1, the depth of the groove 25 may be made deeper than in embodiment 3, and a shielding member 22 similar to that of variant example 3 of embodiment 1 may be used, with the lock receiving hole h3 being formed only in the shielding member 22.

[0120] In addition, in the door-end vertical frame 2 of the third embodiment, similarly to the fourth modified example of the first embodiment, the shielding member 22 may be configured by a thin band-shaped member made of resin.

[0121] Other Embodiments In the above embodiments 1 to 3, a door frame 1 consisting of a three-sided frame has been described, but the door frame 1 according to the present invention only needs to have a metal vertical frame 2 on the door end side, and may be a two-sided or three-sided frame.

[0122] In addition, in the above embodiments 1 to 3, an example has been described in which, among the frame materials constituting the door frame 1, only the end-side vertical frame 2 is made of metal, and the frame materials other than the end-side vertical frame 2 are made of wooden materials. However, in the door frame 1 of the present invention, the frame materials other than the end-side vertical frame 2 may also be made of metal.

[0123] Further, in the above-mentioned first to third embodiments, the lock receiving member 50 can be installed in two locations, one above the other, but the number of locations where the lock receiving member 50 can be installed may be one, or three or more.

[0124] In addition, in the above embodiments 1 to 3, in order to enable the presence, position and number of lock receiving hole h3 to be easily changed by simply replacing the shielding member 22 without removing the door frame 1 already installed in the opening O, other shielding members 22 are prepared in addition to the shielding member 22 shown in Figure 4, including a shielding member 22 without a lock receiving hole h3, a shielding member 22 in which the lock receiving hole h3 is formed at a height position corresponding to the upper lock receiving hole h1 formed in the groove bottom 26 of the groove 25, and a shielding member 22 in which the lock receiving hole h3 is formed at a height position corresponding to both of the two upper lock receiving holes h1, h2 formed in the groove bottom 26 of the groove 25.

[0125] However, the door end vertical frame 2 according to the present invention may be one in which the presence or absence of the lock receiving hole h3 can be easily changed, and at least one of the position and the number of the lock receiving hole h3 cannot be changed. Specifically, to easily change the presence or absence of the shielding member 22 without the lock receiving hole h3, a shielding member 22 with the lock receiving hole h3 and a shielding member 22 without the lock receiving hole h3 can be prepared. To easily change the position of the lock receiving hole h3, a plurality of shielding members 22 with different positions of the lock receiving hole h3 can be prepared, and to easily change the number of the lock receiving holes h3, a plurality of shielding members 22 with different numbers of the lock receiving holes h3 can be prepared.

[0126] Furthermore, in the above-mentioned embodiments 1 to 3, by preparing a plurality of shielding members 22 with different sizes of the lock receiving hole h3, it is possible to configure so that the size of the lock receiving hole h3 can be easily changed by only replacing the shielding member 22 without removing the door frame 1 already installed in the opening O. With such a door end vertical frame 2, even if the door frame 1 is installed with the wrong type of lock receiving member 50 attached and it becomes necessary to change to a larger lock receiving member 50, the size of the lock receiving hole h3 can be easily changed by only removing the shielding member 22 of the door end vertical frame 2 without removing the entire door frame 1 and replacing it with an appropriate shielding member 22 in which a larger lock receiving hole h3 is formed.

[0127] In addition, in the above-mentioned embodiments 1 to 3, the door D is a hanging door, but the present invention can also be applied to the door frame 1 for a hinged door or a sliding door, where the door D is a hinged door or a sliding door (including double sliding doors). When the present invention is applied to the door frame 1 for a hinged door, the shielding member 22 may be formed to a size that fills the recessed groove 25 (a size in which the inner surface of the shielding member 22 is flush with the inner surface of the vertical frame main body 21). When the present invention is applied to the door frame 1 for a sliding door, both of the pair of vertical frames that constitute the door frame 1 may be constituted by the door-end vertical frame 2. [Industrial Applicability]

[0128] INDUSTRIAL APPLICABILITY The present invention is useful for a metal door-end vertical frame that is attached to an opening in a wall inside a room, a door frame that includes this vertical frame, and an opening structure in which this door frame is provided in an opening. [Explanation of symbols]

[0129] 1 Door frame 2 Door end vertical frame 3. Vertical frame at the end of the door (frame material other than the vertical frame at the front of the door) 4 Upper frame (frame material other than the vertical frame at the door end) 5. Post (frame material other than the vertical frame at the door end) 6. Decorative layer 21 Vertical frame body 21X Folded part 22 Shielding material 23c Inner surface part (inner surface of vertical frame body) 25 Groove 26 Groove bottom 50 Lock receiving member 70 Opening structure h1 Lock hole h2 Lock hole h3 Lock hole

Claims

1. A vertical door frame on the leading edge of a door frame to be attached to an opening in a wall inside a room, A vertical frame body is formed of a plate-shaped metal member and has a vertically extending cylindrical shape with a vertically extending concave groove formed on an inner surface thereof; a shielding member provided in the recessed groove so as to cover and hide the groove bottom, A lock receiving hole into which a lock receiving member is fitted is formed in the groove bottom of the recessed groove and the shielding member, The shielding member is detachably fixed to the vertical frame body. A vertical frame at the end of the door.

2. A vertical door frame on the leading edge of a door frame to be attached to an opening in a wall inside a room, A vertical frame body is formed of a plate-shaped metal member and has a vertically extending cylindrical shape with a vertically extending concave groove formed on an inner surface thereof; a shielding member provided in the recessed groove so as to cover and hide the groove bottom, The shielding member is formed with a lock receiving hole into which a lock receiving member fits, The shielding member is removably fixed to the vertical frame body, The door frame is provided with a sliding door or a hanging door, The above-mentioned groove is a door groove. A vertical frame at the end of the door.

3. In the door end vertical frame according to claim 1, The door frame is provided with a sliding door or a hanging door, The above-mentioned groove is a door groove. A vertical frame at the end of the door.

4. In the door end vertical frame according to claim 2 or 3, The vertical frame body is The groove is formed on the front side of the wall, A folded portion formed by folding back a plate-shaped metal member is provided on the front side of the recessed groove, The folded portion is formed so that its front surface constitutes a part of the front surface of the vertical frame body, and its rear surface constitutes the groove side surface on the near side of the recessed groove. A vertical frame at the end of the door.

5. A door frame to be attached to an opening in a wall of a room, The door-end vertical frame according to claim 1 or 2 is provided. A door frame characterized by:

6. The door frame according to claim 5, Of the frame materials constituting the door frame, the frame materials other than the vertical frame on the door end side are made of wood materials. A door frame characterized by:

7. The door frame according to claim 6, The door end vertical frame and the frame materials other than the door end vertical frame are each covered with a decorative layer made of the same material. A door frame characterized by:

8. An opening structure in which an entrance is formed by a door frame installed in an opening in a wall of a room, The door frame is the door frame according to claim 5. An opening structure characterized by:

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