Door unit

Abstract

To provide a door unit allowing appearance ageing-deterioration of a door body to be suppressed.SOLUTION: A door unit 1 comprises: a first door body 10 provided with a first hinge 11 on one side thereof and a door knob 12 on the other side; and an upper side metal plate 30 attached on an upper side of the door knob 12 of a surface on a side of the door body 10 to be pushed upon opening.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a door unit provided at an entrance of a living room or the like in a building such as a building.

Background Art

[0002] Conventionally, as a door unit provided at an entrance of a living room or the like in a building such as an office, a hospital, a conference hall, or a complex facility thereof, a door body having a doorknob on one side and a hinge on the other side is known. Further, as such a door unit, in addition to the first door body, a second door body having a hinge on one side and a stopper detachably attached to a door frame on the other side, and provided on one side of the first door body is further provided. When opening and closing normally, only the first door body is used, and when necessary, by removing the stopper, the second door body can be opened in addition to the first door body. A double-opening door unit (parent-child door) has also been known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above conventional door unit, the first door body is often opened by pressing the upper surface of the doorknob with a hand, grasping it with a hand, or pulling it after the doorknob is operated. Therefore, there is a problem that visible aging deterioration such as peeling of paint or adhesion of dirt occurs on the upper surface of the doorknob of the first door body.

[0005] This invention was made to solve the above-mentioned problems, and its objective is to provide a door unit that can suppress the visual deterioration of the door body over time. [Means for solving the problem]

[0006] The door unit of the present invention comprises a first door body having a first hinge on one side and a doorknob on the other side, and an upper metal plate attached to the upper side of the doorknob on the surface of the first door body that is pushed when opening, wherein the upper metal plate is in the shape of a strip extending along the edge of the first door body on the side of the doorknob from the base of the doorknob to the upper end of the first door body, and a second door body provided on the other side of the first door body having a stopper that can be engaged with the door frame on one side and a second hinge on the other side, and a lower metal plate attached to the lower side of the doorknob on the surface of the second door body that is pushed when opening, The door body further comprises a first door body having a horizontally elongated rectangular window, the window being positioned between a first decorative panel and a base, which is attached to the surface of the first door body at the same height as the base along the edge of the first door body on the side of the first hinge; and the second door body having a horizontally elongated rectangular window, the window being positioned between a second decorative panel and a lower metal plate, which is attached to the surface of the second door body at the same height as the base along the edge of the second door body on the side of the second hinge. It is characterized by the following. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a door unit that can suppress the deterioration of the appearance of the door body over time. [Brief explanation of the drawing]

[0009] [Figure 1] This is a front view of a door unit according to one embodiment of the present invention. [Figure 2] Figure 1 is an explanatory diagram showing the opening and closing patterns of the door unit. [Figure 3] This is a cross-sectional view along line AA in Figure 1. [Figure 4] This is a cross-sectional view along line BB in Figure 1. [Modes for carrying out the invention]

[0010] A door unit according to one embodiment of the present invention will be described in detail below with reference to the drawings.

[0011] The door unit 1 according to this embodiment, shown in Figures 1 to 3, is installed at the entrance to an interior space S such as a living room in a building 2 such as an office, hospital, conference hall, commercial facility, or a complex of these.

[0012] The wall 3 of the building 2 is provided with a door frame 4 that demarcates an entrance to the interior space S. The door frame 4 has a lower frame portion 4a that extends along the floor 5, a pair of side frame portions 4b and 4c that extend vertically upward from the longitudinal end of the lower frame portion 4a, and an upper frame portion 4d that is connected to the upper ends of the pair of side frame portions 4b and c and is parallel to the lower frame portion 4a, thus demarcating a rectangular entrance.

[0013] The door unit 1 is a double-leaf door with a first door body 10 and a second door body 20 located inside the door frame 4. In this embodiment, the first door body 10 is larger than the second door body 20, so the door unit 1 is a parent-child door with the first door body 10 as the main door and the second door body 20 as the child door.

[0014] In this embodiment, the first door body 10 and the second door body 20 are steel doors with painted or plated surfaces, but they may be made of other materials, such as aluminum alloy.

[0015] The first door body 10 has a rectangular shape when viewed from the front, and as shown in Figure 2, it is equipped with a first hinge 11 on one side edge and is supported by the first hinge 11 on one side frame portion 4b of the door frame 4. The first door body 10 can be opened from the closed state shown in Figure 2(a) to the interior space S shown in Figures 2(b) and 2(c), using the first hinge 11 as an axis.

[0016] The first door body 10 is equipped with door knobs 12 on the other side of each of its two surfaces facing the opening and closing direction. In this embodiment, the door knobs 12 are positioned below the vertical center of the first door body 10. Each door knob 12 is pivotably supported by a rectangular plate-shaped base 13 fixed to the first door body 10. The base 13 is a horizontally elongated rectangular plate, with its other end aligned with the edge of the other side (the side of the second door body 20) of the first door body 10. When a door knob 12 is operated, a latch (not shown) is retracted, and the first door body 10 can be opened by releasing the latch from its engagement with the second door body 20. In Figure 1, only the doorknob 12 and base 13 provided on the surface of the first door body 10 that is pushed when opening (the surface facing the closing direction) are shown. However, as can be seen from Figure 3, the same configuration or shape of doorknob 12 and base 13 as shown in Figure 1 are also provided on the surface of the first door body 10 opposite to the surface that is pushed when opening (the surface facing the opening direction).

[0017] The second door body 20 has a rectangular shape that is narrower than the first door body 10 when viewed from the front, and as shown in Figure 2, it is equipped with a second hinge 21 on the other side edge and is supported by the second hinge 21 on the other side frame portion 4c of the door frame 4.

[0018] As shown in Figure 1, the second door body 20 is equipped with a stopper 22 on one side that is detachably engaged with the door frame 4. In this embodiment, the second door body 20 is equipped with a lower stopper 22 that is detachably engaged with the lower frame portion 4a of the door frame 4, and an upper stopper 22 that is detachably engaged with the upper frame portion 4d of the door frame 4. For example, a French bolt can be used as the stopper 22.

[0019] When the upper and lower stoppers 22 of the second door body 20 are engaged with the door frame 4, as shown in Fig. 2(a), when the first door body 10 is closed, it is held in a closed state together with the first door body 10. As shown in Fig. 2(b), even when the first door body 10 is opened, it is held in a closed state. On the other hand, when the upper and lower stoppers 22 are disengaged from the door frame 4 by a release operation, the second door body 20 can be opened toward the internal space S about the second hinge 21 after the first door body 10 is opened, as shown in Fig. 2(c).

[0020] As shown in Figs. 1 and 3, an upper metal plate 30 is attached above the doorknob 12 on the surface of the first door body 10 that is pushed when opening. In the present embodiment, the upper metal plate 30 is in a strip shape extending along the edge on the side of the second door body 20 from the pedestal 13 of the doorknob 12 to the upper end of the first door body 10. The upper metal plate 30 may be attached to the surface that is pushed when opening. However, as can be understood from Fig. 3, an upper metal plate 30 having the same configuration or shape as that shown in Fig. 1 may also be attached to the surface of the first door body 10 opposite to the surface that is pushed when opening.

[0021] In the present embodiment, the upper metal plate 30 is in a vertically long strip shape with a horizontal width the same as the horizontal width of the pedestal 13 of the doorknob 12 and a vertical length sufficiently longer than the horizontal width. Its lower end abuts against the upper end of the pedestal 13, and its upper end is aligned with the upper end position of the first door body 10. Also, the upper metal plate 30 is made of unpainted stainless steel, and its surface is resistant to dirt and scratches without paint peeling off.

[0022] Thus, in the door unit 1 of the present embodiment, the first door body 10 is configured such that the upper metal plate 30 is attached above the doorknob 12 on the surface on the pushing side when it is opened. Therefore, the surface above the doorknob 12 of the first door body 10 is covered by the upper metal plate 30 and protected by the upper metal plate 30. Accordingly, when opening the first door body 10, even if the upper portion of the doorknob 12 of the first door body 10 is pushed by hand, grabbed by hand and pulled, the surface of this portion is protected by the upper metal plate 30, and it is possible to suppress the occurrence of peeling of the paint, adhesion of dirt, scratches, etc. on the surface of this portion of the first door body 10. Thus, it is possible to suppress the occurrence of visible aging deterioration such as peeling of the paint, adhesion of dirt, scratches, etc. on the surface of the first door body 10.

[0023] Also, in the present embodiment, since the upper metal plate 30 is provided to extend along the edge on the side of the second door body 20 from the pedestal 13 of the doorknob 12 to the upper end of the first door body 10, when opening the first door body 10, no matter at what height the portion above the doorknob 12 of the first door body 10 is pushed or grabbed by hand, it is possible to suppress the occurrence of peeling of the paint, adhesion of dirt, scratches, etc. on the surface of this portion. In particular, even in the case where the doorknob 12 is provided at a position shifted downward from the central position in the vertical direction of the first door body 10 as in the present embodiment, it is possible to surely suppress the occurrence of peeling of the paint, adhesion of dirt, scratches, etc. due to the surface of the portion above the doorknob 12 of the first door body 10 being pushed or grabbed by hand.

[0024] Furthermore, in the present embodiment, since the upper metal plate 30 is also attached above the doorknob 12 on the surface of the first door body 10 opposite to the surface on the pushing side when it is opened, it is also possible to suppress the occurrence of peeling of the paint, adhesion of dirt, scratches, etc. on the surface of the first door body 10 opposite to the surface on the pushing side when it is opened.

[0025] As shown in Figures 1 and 4, the door unit 1 can also be configured such that the lower metal plate 40 is attached to the lower side of the doorknob 12 on the surface of the second door body 20 that is pushed when opening. The lower metal plate 40 only needs to be provided on the surface of the second door body 20 that is pushed when opening, but as can be seen from Figure 4, the lower metal plate 40 may also be attached to the surface of the second door body 20 opposite to the surface that is pushed when opening, in the same configuration or shape as shown in Figure 1.

[0026] In this embodiment, the lower metal plate 40 is a vertically elongated strip that is narrower than the upper metal plate 30. Its upper end is aligned with the lower end of the upper metal plate 30, and its lower end is aligned with the lower end of the second door body 20. The lower metal plate 40, like the upper metal plate 30, is made of unpainted stainless steel, and its surface is resistant to paint peeling, dirt, and scratches.

[0027] As described above, in the door unit 1 of this embodiment, the second door body 20 has a lower metal plate 40 attached to the lower side of the doorknob 12 on the surface that is pushed when opening. Therefore, the lower surface of the second door body 20 below the doorknob 12 is covered and protected by the lower metal plate 40. Accordingly, as shown in Figure 2(b), when the first door body 10 is opened and used while the second door body 20 is held closed by engaging the stopper 22 with the door frame 4, even if the user's foot hits the lower part of the second door body 20 below the doorknob 12 or if a trolley hits it, the lower metal plate 40 protects the surface of that part, thereby preventing paint peeling, dirt, scratches, etc. from adhering to that part of the second door body 20. Therefore, it is possible to suppress the appearance of aging deterioration on the surface of the second door body 20, such as peeling paint, dirt, scratches, etc.

[0028] Furthermore, in this embodiment, the lower metal plate 40 is in the shape of a strip that extends along the edge of the first door body 10 from a position adjacent to the lower end of the upper metal plate 30 to the lower end of the second door body 20. Therefore, even if a foot hits or a trolley hits any part of the second door body 20 below the door knob 12, it is possible to suppress paint peeling, dirt, scratches, etc. from adhering to the surface of that part.

[0029] As shown in Figure 1, the door unit 1 can also be configured to have a window 50 in the first door body 10 and a window 60 in the second door body 20.

[0030] In this embodiment, the window 50 provided in the first door body 10 is a horizontally elongated rectangular shape and is positioned between the first decorative panel 51, which is attached to the surface of the first door body 10 at the same height as the base 13 along the edge of the first door body 10 on the side of the first hinge 11, and the base 13. The base 13 of the door knob 12, the window 50, and the first decorative panel 51 have the same width in the height direction.

[0031] On the other hand, the window 60 provided in the second door body 20 is a horizontally elongated rectangular shape and is positioned between the second decorative panel 61 and the lower metal plate 40, which are attached to the surface of the second door body 20 at the same height as the base 13 along the edge of the second door body 20 on the side of the second hinge 21. The height of the window 60 and the second decorative panel 61 is the same as the height of the base 13, the window 50 and the first decorative panel 51.

[0032] By configuring the door unit 1 to include the windows 50 and 60 described above, it becomes possible to see inside and outside the first door body 10 or the second door body 20 through the windows 50 and 60, thereby enabling the safe opening and closing of the first door body 10 or the second door body 20.

[0033] Furthermore, the door unit 1 can be made aesthetically pleasing by having a roughly cross-shaped design consisting of a straight horizontal line extending horizontally from the first decorative panel 51, window 50, base 13, the upper end of the lower metal plate 40, window 60 and the second decorative panel 61, an upward line from the upper metal plate 30 extending upward from the horizontal line, and a downward line from the lower metal plate 40 extending downward from the horizontal line.

[0034] The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from its spirit.

[0035] For example, in the above embodiment, the door unit 1 is configured to have a first door body 10 and a second door body 20, but it may also be configured to have only the first door body 10.

[0036] Furthermore, in the above embodiment, the upper metal plate 30 is configured as a strip extending along the edge of the second door body 20 from the base 13 of the door knob 12 to the upper end of the first door body 10. However, it is not limited to this configuration, and its shape, size, etc., can be varied as long as it is attached to the upper side of the door knob 12 on the surface of the first door body 10 that is pushed when opening.

[0037] Furthermore, in the above embodiment, the lower metal plate 40 is configured as a strip extending along the edge of the first door body 10 from a position adjacent to the lower end of the upper metal plate 30 to the lower end of the second door body 20. However, it is not limited to this configuration, and its shape, size, etc., can be varied as long as it is attached to the lower side of the doorknob 12 on the surface of the second door body 20 that is pushed when opening.

[0038] Furthermore, in the above embodiment, the upper metal plate 30 and the lower metal plate 40 were made of unpainted stainless steel, but they are not limited to this. Any other metal that does not cause paint peeling and is resistant to dirt and scratches may be used.

[0039] Furthermore, in the above embodiment, the first door body 10 is configured to be larger than the second door body 20, but the first door body 10 and the second door body 20 may be the same size, or the second door body 20 may be larger than the first door body 10. [Explanation of symbols]

[0040] 1 Door Unit 2 Buildings 3 walls 4-door frame 4a Lower frame part 4b Side frame 4c Side frame 4d Upper frame part 5 beds 10. First door body 11. First hinge 12 Door handles 13 Pedestal 20 Second door body 21. Second hinge 22 Stopper 30 Upper metal plate 40 Lower metal plate 50 windows 51 First decorative panel 60 windows 61 Second decorative panel S interior space

Claims

[Claim 1] A first door body having a first hinge on one side and a doorknob on the other side, The first door body has an upper metal plate attached to the upper side of the door knob on the surface that is pushed when opening, The upper metal plate is in the shape of a strip extending from the base of the doorknob to the upper end of the first door body, along the edge of the first door body on the side of the doorknob. A stopper that can be detachably engaged with the door frame is provided on one side, and a second hinge is provided on the other side of the first door body, The second door body further comprises a lower metal plate attached to the lower side of the door handle on the surface that is pushed when opening, The door unit is characterized in that the first door body has a horizontally elongated rectangular window, the window is positioned between a first decorative panel and a base, which is attached to the surface of the first door body at the same height as the base along the edge of the first door body on the side of the first hinge, and the second door body has a horizontally elongated rectangular window, the window is positioned between a second decorative panel and a lower metal plate, which is attached to the surface of the second door body at the same height as the base along the edge of the second door body on the side of the second hinge.

Images