Shoji screens for doors and windows

Abstract

The gaps at both ends should also be sealed. [Solution] A sliding door 7 for joinery is provided, comprising left and right vertical frames 21, 22 and a lower frame 24 disposed between the lower ends of the vertical frames 21, 22, and is disposed to be openable and closable with respect to an opening WO provided in a wall W, wherein an attachment 30 is provided on the lower frame 24, and the attachment 30 has an attachment body 31 that is attached to the lower frame 24 and an extension 32 that extends from the attachment body 31 to a position facing the lower end surfaces of the vertical frames 21, 22, and a mohair 36 is provided on the portion of the attachment 30 that extends from the attachment body 31 to the extension 32.

Description

Technical Field

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[0001] The present invention relates to a sliding door for furniture that is arranged to be openable and closable with respect to an opening provided in a wall body, and more particularly to a sliding door for furniture provided with a gap filler on the lower surface.

Background Art

[0002] In furniture such as a hanging door, there is a type in which a gap filler such as mohair is provided on the lower surface of the sliding door. For example, as this type of furniture, a gap filler is attached to the lower frame that constitutes the lower surface of the sliding door to close the gap between the lower surface of the sliding door and the floor surface or the like (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] By the way, as a sliding door of furniture, there is a type in which the lower frame is arranged between the lower ends of the left and right vertical frames. At both ends of such a sliding door, since the lower surface is constituted by the vertical frame, it is difficult to provide a gap filler, and there is a concern that a gap may occur.

[0005] In view of the above situation, an object of the present invention is to provide a sliding door for furniture that can also close the gap at both ends.

Means for Solving the Problems

[0006] To achieve the above objective, the sliding door screen according to the present invention comprises left and right vertical frames and a lower frame disposed between the lower ends of the vertical frames, and is installed to be openable and closable for an opening provided in a wall, wherein the lower frame is provided with an attachment, the attachment having an attachment body attached to the lower frame and an extension portion extending from the attachment body to a position facing the lower end surface of the vertical frame, and the attachment is provided with a gap-filling material in the portion extending from the attachment body to the extension portion. [Effects of the Invention]

[0007] According to the present invention, the attachment mounted on the lower frame has an extension portion on the attachment body, and gap-sealing material is provided on both the attachment body and the extension portion, making it possible to seal the gaps at both ends as well. [Brief explanation of the drawing]

[0008] [Figure 1] This is a vertical cross-sectional view of a door or window fitting to which a sliding door screen, an embodiment of the present invention, is applied. [Figure 2] Figure 1 is a cross-sectional view of the joinery shown. [Figure 3] Figure 1 shows a vertical cross-section of the lower portion of a sliding door panel, broken along a vertical plane in the direction of depth. [Figure 4] This is a cross-sectional view showing the lower part of the vertical frame of the sliding door frame shown in Figure 1. [Figure 5] Figure 1 is a perspective view showing the main parts of the vertical and bottom frames of a sliding door panel. [Figure 6] Figure 1 is a perspective view of an attachment applied to a sliding door screen. [Figure 7] Figure 1 shows the lower portion of a sliding door panel, fractured along a vertical plane parallel to the depth direction; (a) is an exploded longitudinal section view, and (b) is a longitudinal section view. [Figure 8] Figure 1 shows a disassembled longitudinal cross-section of the lower portion of a sliding door panel, broken along a vertical plane in the direction of its surface. [Figure 9]Figure 1 shows a longitudinal cross-section of the lower portion of a sliding door panel, broken along a vertical plane parallel to the visible direction. [Modes for carrying out the invention]

[0009] The following describes in detail preferred embodiments of the sliding door panel according to the present invention with reference to the attached drawings. For convenience, the terms "depth direction" and "face direction" may be used below. The depth direction is the direction along the thickness of the panel of the sliding door panel, as indicated by arrow A in the figure. The surface along the depth direction may be referred to as the depth surface. The face direction is the direction along the vertical direction perpendicular to the depth direction, in the case of a lower frame or the like, which extends horizontally. In the case of a vertical frame or the like, which extends vertically, the face direction is the direction along the horizontal direction perpendicular to the depth direction. The surface along the face direction may be referred to as the face surface.

[0010] Figures 1 and 2 show a door or window to which a sliding door screen, an embodiment of the present invention, is applied. The sliding door screen 7 illustrated here opens and closes an opening WO in a wall body W by sliding left and right along the interior surface of the wall body W. The illustrated example shows an overhead-hung automatic door equipped with two sliding door screens 7. The opening WO in the wall body W is rectangular in shape, with an upper frame 11 attached to the upper edge of the opening and vertical frames 12 attached to both the left and right side edges of the opening. The upper frame 11 and vertical frames 12 are configured to be larger than the wall body W in the depth direction and are attached to the wall body W so as to protrude inward from the interior surface of the wall body W.

[0011] A hanger unit 1 is attached to the upper frame 11 on the visible surface facing the room. The hanger unit 1 supports the sliding door screen 7 so that it can move along the wall surface while suspended, and is equipped with a drive mechanism for opening and closing the sliding door screen 7. Specifically, the hanger unit 1 comprises an upper rail 2 extending along the longitudinal side of the upper frame 11, a door hanger 4 that supports the sliding door screen 7 so that it can move along the upper rail 2 via a door roller 3, and a drive source 5 such as an electric motor. The drive source 5 transmits the driving force to the door hanger 4, causing the sliding door screen 7 to slide along the upper rail 2. This hanger unit 1 is housed inside a unit cover 6 attached to the upper frame 11. A guide rail 13 is embedded in the floor surface F opposite the upper frame 11. The guide rail 13 has a guide groove 13a at approximately the center in the depth direction and is configured to have a length corresponding to the movement range of the two sliding door screens 7.

[0012] The left and right sliding doors 7 are constructed by arranging left and right vertical frames 21, 22, an upper frame 23, and a lower frame 24 around a rectangular panel 20 made of glass or the like, and are symmetrical in shape on the left and right. The vertical frames 21, 22, upper frame 23, and lower frame 24 are extruded profiles formed from metal such as aluminum alloy, and each is constructed to have a substantially uniform cross-sectional shape along its entire length. The dimensions of the sliding doors 7 along the top and bottom are set so that a predetermined gap is secured between the lower frame 24 and the upper surface 13b of the guide rail 13 when the sliding doors 7 are suspended from the upper rail 2 via the door hanger 4.

[0013] The vertical frames 21 and 22 are cylindrical with a roughly rectangular cross-section. The lower frame 24 has a frame body 24a with a roughly rectangular cross-section and groove-forming wall portions (visible wall portions) 24b extending downward from both side edges of the frame body 24a, with a receiving groove 24c opening downward between the groove-forming wall portions 24b. As shown in Figures 4 and 5, the lower frame 24 is connected to the vertical frames 21 and 22 with both ends in contact with the visible surfaces on the inner circumference of the vertical frames 21 and 22.

[0014] As is clear from Figure 2, when the two sliding doors 7 suspended via the door hanger 4 are positioned in the closed position, the leading edge vertical frame 21 abuts against each other via the sealing material 21a, and the trailing edge vertical frame 22 is positioned to overlap the vertical frame 12 in the depth direction. A frame-side mohair unit 15 is provided on the facing surface of the vertical frame 12. The frame-side mohair unit 15 is configured such that numerous elastic fibers 15b protrude from the surface of the base plate 15a. This frame-side mohair unit 15 is attached to the vertical frame 12 via the base plate 15a with the fibers 15b protruding toward the interior, and is capable of abutting the vertical frames 21 and 22 of the sliding doors 7 in the closed position along their entire length in the vertical direction.

[0015] As shown in Figures 3 to 9, an attachment 30 is provided in the receiving groove 24c of the lower frame 24. The attachment 30 has an attachment body 31 and extensions 32 extending from both ends of the attachment body 31, and is integrally molded from a metal such as an aluminum alloy. The attachment body 31 has two vertical wall portions 31a extending along the two groove-forming wall portions 24b that constitute the receiving groove 24c, horizontal wall portions 31b extending from the lower end edges of the two vertical wall portions 31a in directions approaching each other, and a mounting wall portion 31c provided to connect the upper ends of the vertical wall portions 31a, and can be fitted into the receiving groove 24c of the lower frame 24. The attachment 30 is attached to the lower frame 24 via the attachment body 31 by screwing a screw member (fixing device) 33 into the frame body 24a via the mounting wall portion 31c, with the mounting wall portion 31c of the attachment body 31 in contact with the lower surface of the frame body 24a and the vertical wall portion 31a in contact with the inner wall surface of the groove-forming wall portion 24b. Between the horizontal wall portions 31b, there is a gap of a size that allows functional components (not shown), such as French bolts, deadbolts, and guide protrusions, which protrude below the lower frame 24 and engage with the guide groove 13a of the guide rail 13, to pass through. In addition, the attachment body 31 is provided with notches 31d extending from the vertical wall portion 31a to a part of the mounting wall portion 31c in the portion corresponding to the above-mentioned functional components, so that these functional components can pass through. The extension portion 32 is a long member having the same cross-sectional shape as the horizontal wall portion 31b, and is provided so as to extend from the ends of each horizontal wall portion 31b provided on the attachment body 31. In the attachment 30, the dimension from the end of one extension portion 32 to the end of the other extension portion 32 is approximately equal to the sum of the dimension along the left and right sides of the sliding door 7, that is, the dimension along the longitudinal side of the bottom frame 24, and the visible dimensions along the left and right sides of the two vertical frames 21 and 22. When the attachment 30 is attached to the bottom frame 24 via the attachment body 31, the extension portion 32 is positioned in the part facing the lower end surface of the vertical frame 21 and the lower end surface of the vertical frame 22. The horizontal wall portion 31b of the attachment body 31 and the extension portion 32 continuous therewith are provided with a dovetail groove 34 and a bracket mounting groove 35, respectively.

[0016] The ant groove 34 is provided on the lower surfaces of the lateral wall portion 31b and the extension portion 32 and is configured such that the opening width of the lower surface is narrower than the width inside the groove. Both ends of the ant groove 34 open to the end surfaces of the extension portion 32 respectively. A mohair (gap filler) 36 is attached to this ant groove 34. The mohair 36 is provided with a number of elastic fibers 36b on the surface of a thin plate-shaped base 36a. The base 36a is disposed inside the groove of the ant groove 34, and is provided at a portion extending over the entire lengths of the lateral wall portion 31b and the extension portion 32 in a state where the fibers 36b project downward from the opening. The dimension from the lower surface of the lower frame 24 to the tip of the mohair 36 is set to be not less than the gap secured between the above-described furniture shoji 7 and the upper surface 13b of the guide rail 13.

[0017] The bracket mounting groove 35 is a recess formed in the lateral wall portion 31b and the extension portion 32 on opposite sides, and is formed along the entire length of the attachment 30 along its longitudinal side. Both ends of the bracket mounting groove 35 open to the end faces of the extension portion 32. A support bracket 37 is mounted in this bracket mounting groove 35. The support bracket 37 has a rectangular base portion 37a extending horizontally and a connecting piece 37b bent upward from one end of the base portion 37a, and is integrally molded from a metal such as an aluminum alloy. The dimensions of the base portion 37a along its short side are slightly larger than the spacing between the bracket mounting grooves 35, and its dimensions along its longitudinal side are larger than the visible dimensions along the left and right sides of the vertical frames 21 and 22. The support bracket 37 is attached to the vertical frames 21 and 22 by inserting both side edges of the base portion 37a into the bracket mounting grooves 35 of the extension portion 32, and bringing the connecting piece 37b into contact with the outer surface of the vertical frames 21 and 22, and then screwing the screw member 38 into the vertical frames 21 and 22 via the connecting piece 37b. As described above, the length of the base portion 37a is set to be larger than the width of the vertical frames 21 and 22. Therefore, when the connecting piece 37b is brought into contact with the outer surface of the vertical frames 21 and 22, the insertion tip of the base portion 37a reaches the bracket mounting groove 35 provided in the side wall portion 31b of the attachment body 31. As a result, the support bracket 37 is attached to the vertical frames 21 and 22 via the connecting piece 37b, and is also supported by the lower frame 24 via the tip of the base plate portion 37a and the attachment body 31.

[0018] According to the door 7 for furniture configured as described above, since a gap is secured with respect to the upper surface 13b of the guide rail 13, it does not come into direct contact with the guide rail 13, and the operation when moving in the left - right direction becomes smooth. Moreover, mohair 36 is provided on the lower surface of the lower frame 24 and the lower surfaces of the left and right vertical frames 21, 22 respectively, and since the tip portions of the fibers 36b are in contact with the upper surface 13b of the guide rail 13, there is no risk that foreign substances outdoors such as sand and dust will enter the room. Moreover, since the extension portion 32 that protrudes from the attachment body 31 is restricted from moving in a direction away from the lower surfaces of the vertical frames 21, 22 by the support bracket 37, it is possible to prevent a situation where the contact state of the mohair 36 with respect to the upper surface 13b of the guide rail 13 becomes non - uniform.

[0019] In addition, in the above - described embodiment, a hanging - type automatic door is illustrated, but it can also be applied as a door for other furniture such as a hinged door or a hinged window. Also, a housing groove 24c is provided in the lower frame 24 and the attachment body 31 is fitted into this housing groove 24c, but it is not always necessary to provide the housing groove 24c in the lower frame 24. In this case, as the attachment body 31 of the attachment 30, it is not necessary to have a vertical wall portion 31a and it may simply be in a flat plate shape. Further, as the extension portions 32 of the attachment 30, gaps are provided between the outdoor - side edge portion and the indoor - side edge portion so as to secure a gap between them, but it is not limited to this as long as it extends to a position facing the lower surfaces of the vertical frames 21, 22. In this case, it is not necessary to provide two rows of mohair 36 and one row may be provided. Furthermore, in the above - described embodiment, bracket mounting grooves 35 are provided in the two extension portions 32 and the edge portion of the support bracket 37 is inserted into this bracket mounting groove 35, but it is not always necessary to provide the bracket mounting grooves 35. For example, it is also possible to configure it such that the lower surface of the extension portion 32 is supported by the support bracket 37. Also, although mohair is illustrated as the gap - filling material, materials made of other materials such as resin - made thin plates may be applied.

[0020] As described above, the sliding door screen according to the present invention comprises left and right vertical frames and a lower frame disposed between the lower ends of the vertical frames, and is installed to be openable and closable for an opening provided in a wall, wherein the lower frame is provided with an attachment, the attachment having an attachment body attached to the lower frame and an extension portion extending from the attachment body to a position facing the lower end surface of the vertical frame, and the attachment is characterized in that a gap-filling material is provided in the portion extending from the attachment body to the extension portion. According to this invention, the attachment mounted on the lower frame has an extension part on the attachment body, and gap-sealing material is provided on both the attachment body and the extension part, making it possible to seal the gaps at both ends as well.

[0021] Furthermore, the present invention is characterized in that, in the above-described sliding door frame, the lower frame is provided with a receiving groove that opens downward along its longitudinal direction, and the attachment is attached to the lower frame by mounting the attachment body into the receiving groove. According to this invention, the mounting strength of the attachment to the lower frame can be improved.

[0022] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fixtures, a dovetail groove opening downwards is provided on the lower surface of the attachment, and the gap-filling material is fitted into the dovetail groove. According to this invention, a gap-filling material can be attached to the attachment via a dovetail groove.

[0023] Furthermore, in the above-described sliding door for building fittings, the present invention is characterized in that the attachment body has two vertical wall portions extending along two visible wall portions constituting the receiving groove, and horizontal wall portions extending from the lower edges of the two vertical wall portions toward each other, each having a dovetail groove on its lower surface, and the extension portion extends from each of the horizontal wall portions and has a dovetail groove opening downward in the portion continuous with the dovetail groove. According to this invention, since the dovetail groove in the side wall and the dovetail groove in the extension are connected, it becomes possible to provide a gap-filling material that extends from the attachment body to the extension in a continuous manner.

[0024] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fixtures, the extension portion is configured to have the same cross-sectional shape as the side wall portion. According to this invention, since the side wall portion and the extension portion have the same cross-sectional shape, the attachment body and the extension portion can be extruded, which is advantageous in terms of moldability.

[0025] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fixtures, the extension portion is provided with bracket mounting grooves that open at positions opposite to each other, support brackets are disposed between the extension portions with their edges fitted into the bracket mounting grooves, and the support brackets are provided with connecting pieces that are connected to the outer surface of the vertical frame. According to this invention, the two extensions are connected by a support bracket and also connected to the visible surface of the vertical frame via a connecting piece, thereby restricting downward movement relative to the vertical frame and preventing uneven contact of the gap-filling material.

[0026] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fittings, the attachment is attached to the lower frame via the attachment body, the side wall portion of the attachment body is provided with a bracket mounting groove in a portion continuous with the bracket mounting groove, and the support bracket has a length that extends from the bracket mounting groove of the extension portion to the bracket mounting groove of the side wall portion. According to this invention, since the support bracket is mounted from the bracket mounting groove of the extension to the bracket mounting groove of the attachment body, the extension can be supported more reliably.

[0027] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fittings, the attachment body has two vertical wall portions extending along two visible wall portions constituting the receiving groove, horizontal wall portions extending in a direction approaching each other at the lower end edges of the two vertical wall portions and each having a dovetail groove on its lower surface, and a mounting wall portion provided to connect the upper ends of the vertical wall portions, and is attached to the lower frame by providing a fastener to the lower frame via the mounting wall portion. According to this invention, it is possible to securely attach the attachment to the lower frame.

[0028] Furthermore, the present invention is characterized in that, in the above-described sliding door for building fixtures, the extension portion is restricted from moving downward relative to the vertical frame by a support bracket attached to the vertical frame. According to this invention, the downward movement of the extension relative to the vertical frame is restricted by the support bracket, preventing the gap-filling material from making uneven contact. [Explanation of Symbols]

[0029] 7 Shoji screen for doors and windows, 21, 22 vertical frame, 24 bottom frame, 24a frame body, 24b groove-forming wall section, 24c storage groove, 30 attachment, 31 attachment body, 31a vertical wall section, 31b horizontal wall section, 31c mounting wall section, 32 extension section, 33 screw member, 34 dovetail groove, 35 bracket mounting groove, 36 mohair, 37 support bracket, 37a base section, 37b connecting piece, W wall body, WO opening

Claims

1. A sliding door comprising left and right vertical frames and a lower frame positioned between the lower ends of the vertical frames, and installed to be openable and closable in relation to an opening in a wall, An attachment is provided on the lower frame. The attachment comprises an attachment body that is attached to the lower frame and an extension portion that extends from the attachment body to a position facing the lower end surface of the vertical frame. The sliding door screen is characterized in that the attachment is provided with a gap-filling material in the portion extending from the attachment body to the extension.

2. The lower frame is provided with a receiving groove that opens downwards along its length. The sliding door for joinery according to claim 1, characterized in that the attachment is attached to the lower frame by mounting the attachment body in the receiving groove.

3. The sliding door for joinery according to claim 1, characterized in that the lower surface of the attachment is provided with a dovetail groove that opens downward, and the gap-filling material is fitted into the dovetail groove.

4. The attachment body has two vertical wall portions extending along the two visible wall portions that constitute the housing groove, and horizontal wall portions extending from the lower edges of the two vertical wall portions toward each other, each having a dovetail groove on its lower surface. The sliding door for joinery according to claim 2, characterized in that the extension extends from each of the side wall portions and has a dovetail groove that opens downward in the portion continuous with the dovetail groove.

5. The sliding door for joinery according to claim 4, characterized in that the extension portion is configured to have the same cross-sectional shape as the side wall portion.

6. The extension portion is provided with bracket mounting grooves that open at positions opposite to each other. Between the aforementioned extensions, support brackets are provided, each with an edge fitted into the bracket mounting groove. The sliding door for joinery according to claim 4, characterized in that the support bracket is provided with a connecting piece that is connected to the outer surface of the vertical frame.

7. The attachment is attached to the lower frame via the attachment body. The side wall portion of the attachment body is provided with a bracket mounting groove in a portion continuous with the bracket mounting groove. The sliding door for joinery according to claim 6, characterized in that the support bracket has a length that extends from the bracket mounting groove of the extension portion to the bracket mounting groove of the side wall portion.

8. The attachment body has two vertical wall portions extending along two visible wall portions constituting the receiving groove, horizontal wall portions extending toward each other at the lower end edges of the two vertical wall portions and each having a dovetail groove on its lower surface, and a mounting wall portion provided to connect the upper ends of the vertical wall portions, and is attached to the lower frame by providing a fastener to the lower frame via the mounting wall portion, as described in claim 2.

9. The sliding door for joinery according to claim 1, characterized in that the extension portion is restricted from moving downward relative to the vertical frame by a support bracket attached to the vertical frame.

Images