JP7472627B2 - Sliding door structure - Google Patents

Description

The present invention relates to a sliding door structure.

When renovating an existing house, a hinged door may be changed to a sliding door. In this case, methods for changing a hinged door to a sliding door include demolishing the wall and replacing the entire door frame with a sliding door, or removing only the hinged door while leaving the existing door frame in place and installing a sliding door outside the door frame (offset sliding door). The latter method has the advantage of being easier and less costly to renovate than demolishing the wall, as well as shortening the construction time.

Patent Document 1 describes a sliding door frame used to install a sliding door in an opening formed in a wall during building renovation. This sliding door frame includes an opening frame that covers the edge of the opening, an upper frame for the sliding door, and a first vertical frame and a second vertical frame provided at both ends of the upper frame for the sliding door. The first vertical frame is the part that receives the sliding door and includes a receiving member that is fitted into a groove in the opening frame, a backing member provided on this receiving member, and a front frame that covers the outside of the receiving member and the backing member.

JP 2004-238931 A

In the sliding door frame described in Patent Document 1, the first vertical frame (receiving member) is attached to the opening frame by fitting it into a groove in the opening frame, but the strength of the frame is not necessarily sufficient. For this reason, when sliding the sliding door to close the opening in the wall, if the door edge hits the first vertical frame (receiving member) hard, the first vertical frame may easily come off the opening frame.

The present invention was made in consideration of the above problems, and its purpose is to provide a sliding door structure with improved strength against bumping.

A sliding door structure according to one aspect of the present invention includes a wall in which an opening is formed, a vertical frame that is attached vertically to the vertical edge of the wall on the opening side and includes a protruding portion that protrudes outward beyond the wall, a sliding door that can move between a closed position of the opening and an open position of the opening, and a restricting portion that restricts the movement of the sliding door in the closed position. The restricting portion includes a receiving portion that receives a force from the edge of the sliding door in the movement direction of the sliding door, and an extension portion that extends from the receiving portion toward the wall so as to face the protruding portion at a position opposite the sliding door in the movement direction.

With this sliding door structure, when the tip of the sliding door hits the receiving portion, a rotational moment acts on the regulating portion in a direction in which the extension presses the protruding portion. This allows the regulating portion to engage with the protruding portion of the vertical frame, preventing the regulating portion from coming off the vertical frame due to the force it receives when the sliding door hits the frame. Therefore, with the sliding door structure of the present invention, the mounting strength of the regulating portion against the abutment of the sliding door can be improved compared to when the regulating portion does not include an extension portion.

In the above sliding door structure, the protruding portion may include a first surface located on the sliding door side in the moving direction, and a second surface located on the opposite side to the first surface in the moving direction. The extension portion may be in contact with the second surface.

This configuration makes it possible to prevent rattling of the restricting portion when the opening is closed by the sliding door, compared to when the extension portion is not in contact with the second surface of the protruding portion.

In the above sliding door structure, the extension may be fixed to the second surface by adhesive.

This configuration allows the restricting portion to be more firmly fixed to the vertical frame, further improving the mounting strength of the restricting portion.

In the above sliding door structure, the wall may include a first wall surface facing the restricting portion and a second wall surface facing the opposite side to the first wall surface in the thickness direction of the wall. The protruding portion may protrude outward beyond the first wall surface. The extension portion may be in contact with the first wall surface.

This configuration makes it possible to prevent the restricting portion from rattling when the opening is closed by the sliding door, compared to when the extension portion is not in contact with the first wall surface.

In the above sliding door structure, the extension may be fixed to the first wall surface by adhesive.

With this configuration, the mounting strength of the restricting part can be further improved by also fixing the restricting part to the wall.

The sliding door structure may further include a decorative frame that surrounds the outer periphery of the vertical frame and the restricting portion.

With this configuration, the boundary between the vertical frame and the restricting portion is shielded by the decorative frame, giving the entrance and exit frame a unified appearance.

In the above sliding door structure, the sliding door may be supported by a floor surface in a state aligned with the vertical direction. The above sliding door structure may further include a locking device that locks the upper end of the sliding door, allowing the sliding door to move between the closed position and the open position and restricting the sliding door from falling onto the floor surface. The restricting portion may be fixed only to the vertical frame and the wall.

This configuration eliminates the need to provide rails or the like along the upper edge of the opening to allow the sliding door to move while suspended from above, simplifying the installation of the sliding door.

If a rail is provided along the upper edge of the opening, it is possible to fix the restricting part to the rail, but in the above configuration, the restricting part is fixed only to the vertical frame and the wall. Therefore, in this case, the reinforcing effect of providing the extension part contributes more effectively to preventing the restricting part from falling off the vertical frame.

As is clear from the above explanation, the present invention can provide a sliding door structure with improved strength against bumping.

1 is a perspective view showing a schematic configuration of a sliding door structure according to one embodiment of the present invention; FIG. 2 is a horizontal cross-sectional view of the sliding door structure when the sliding door is in a closed position. FIG. 2 is a horizontal cross-sectional view of the sliding door structure when the sliding door is in an open position. FIG. 2 is a vertical cross-sectional view of the sliding door structure. 10A and 10B are schematic diagrams for explaining the effect of improving the mounting strength of the restricting portion in the above-mentioned sliding door structure. 5 is a schematic diagram for explaining application of adhesive in the construction method of the above-mentioned sliding door structure. FIG. 13 is a schematic diagram for explaining screw fastening of the regulating portion in the construction method of the above-mentioned sliding door structure. FIG. 10 is a schematic diagram for explaining the installation of the decorative frame in the construction method of the above-mentioned sliding door structure. FIG.

The sliding door structure according to an embodiment of the present invention will be described in detail below with reference to the drawings.

First, the configuration of a sliding door structure 1 according to one embodiment of the present invention will be described with reference to Figs. 1 to 4. The sliding door structure 1 is, for example, a hinged door that has been changed to a sliding door during renovation of a house, and the sliding door 30 is disposed outside an opening 11 in a wall 10. The sliding door structure 1 according to this embodiment separates two living spaces within a house. As shown in Fig. 1, the sliding door structure 1 mainly comprises a wall 10, an opening frame 20, a sliding door 30, and a restricting portion 40. Each of these components will be described below.

The wall 10 divides the space within the house into a first living space S1 and a second living space S2 (Figs. 2 and 3). As shown in Fig. 1, the wall 10 has an opening 11 that is rectangular when viewed from the front. This opening 11 is a part that connects the first living space S1 and the second living space S2, and is surrounded by an opening frame 20.

As shown in Figures 2 and 3, the wall 10 has a first panel 15, a second panel 16, and a stud 17. The first panel 15 and the second panel 16 are arranged perpendicular to the floor surface F0 and parallel to each other with a gap in the wall thickness direction. The first panel 15 is made of, for example, gypsum board, and includes a first wall surface 15A facing the restricting portion 40 (first living space S1 side). The first panel 15 is fixed to one side surface 17A of the stud 17 (the side surface facing the first living space S1).

The second panel 16, like the first panel 15, is made of gypsum board or the like and includes a second wall surface 16A facing the second living space S2. The second wall surface 16A faces the opposite side to the first wall surface 15A in the wall thickness direction. The second panel 16 is fixed to the other side surface 17B (the side surface on the second living space S2 side) of the partition 17. The partition 17 is a member with a rectangular cross section that is placed in the gap between the first panel 15 and the second panel 16 and extends vertically.

The opening frame 20 was used as a frame for a hinged door before the above-mentioned renovation. The opening frame 20 is a three-sided frame surrounding the opening 11, and includes a first vertical frame 21, a second vertical frame 22, and an upper frame 23 (FIG. 1). The first vertical frame 21 is attached vertically to the first vertical edge portion 13 of the wall 10 on the opening 11 side. As shown in FIG. 2 and FIG. 3, the first vertical frame 21 has a first protruding portion 21A that protrudes outward (toward the first living space S1 side) from the first wall surface 15A, a second protruding portion 21B that protrudes outward (toward the second living space S2 side) from the second wall surface 16A, and a vertical frame main body portion 21C located between the first protruding portion 21A and the second protruding portion 21B. The first vertical frame 21 is attached to the first vertical edge portion 13 over the entire vertical direction.

The second vertical frame 22 is attached to the second vertical edge 14 of the wall 10 on the opening 11 side along the vertical direction. The second vertical edge 14 is a portion that faces the first vertical edge 13 in the wall surface direction across the opening 11. As shown in Figures 2 and 3, the second vertical frame 22 has a first protruding portion 22A that protrudes outward (toward the first living space S1 side) from the first wall surface 15A, a second protruding portion 22B that protrudes outward (toward the second living space S2 side) from the second wall surface 16A, and a vertical frame main body portion 22C located between the first protruding portion 22A and the second protruding portion 22B. The second vertical frame 22 is attached to the second vertical edge 14 over the entire vertical direction. The upper frame 23 (Figure 1) is attached to the upper edge 12 of the wall 10 along the horizontal direction.

The sliding door 30 can move (slide) along the wall 10 between a closed position of the opening 11 and an open position of the opening 11, and is disposed closer to the first living space S1 than the opening 11 (Figs. 2 and 3). As shown in Fig. 1, the sliding door 30 has a rectangular shape when viewed from the front, and is slightly larger than the opening 11. The "closed position" is a position in which the entire opening 11 is covered by the sliding door 30 when viewed from the front (Fig. 2). On the other hand, the "open position" is a position in which the sliding door 30 does not overlap the opening 11 in the wall thickness direction, and the entire opening 11 is open (Fig. 3).

In FIG. 1, the left end of the sliding door 30 is the door tip 31, and the right end is the door tail 32. As shown in FIG. 1, a notch 31A is formed in the approximate vertical center of the door tip 31, and a handle 80 is disposed in the notch 31A.

As shown in the cross section of Figure 2, the handle 80 has a finger hook 81 formed in a hollow column shape, and a first space 83 and a second space 84 are formed in front and behind the finger hook 81, respectively. The handle 80 also has a knob 82 that is flush with the end face on the door end 31 side.

As a result, as shown in FIG. 3, even if the sliding door 30 is opened until the end surface 31B on the door end 31 side is flush with the inner surface of the second vertical frame 22 (the surface facing the opening 11), a person on the second living space S2 side can close the sliding door 30 by inserting their fingers into the first space 83 formed in the handle 80 and pinching the knob 82. By adopting this handle 80, when opening the sliding door 30, it is not necessary to stop the end surface 31B on the door end 31 side at a position closer to the opening 11 than the inner surface of the second vertical frame 22, and the entire opening 11 can be opened. Therefore, it is possible to ensure a wide effective area of the opening 11. Note that this handle 80 is not an essential component of the sliding door structure of the present invention and may be omitted.

The lower end 34 of the sliding door 30 is provided with sliding wheels 36. As shown in FIG. 1, a floor rail 60 is laid horizontally (toward the wall surface) on the portion of the floor surface F0 closer to the first living space S1 (the front side in the figure) than the opening 11. The floor rail 60 extends horizontally from a portion of the floor surface F0 adjacent to the lower end of the regulating portion 40 beyond a portion of the floor surface F0 adjacent to the lower end of the second vertical frame 22, and a stopper 61 is provided at the extended end. This stopper 61 regulates the movement (sliding) of the sliding door 30 in the open position.

The sliding door 30 is supported by the floor surface F0 at its lower end 34 in a vertical position. Specifically, as shown in FIG. 4, the sliding door 30 is arranged so that the wheels 36 are positioned in the grooves of the floor rail 60, and is capable of sliding along the floor rail 60 between the closed position and the open position. For ease of explanation, FIG. 1 shows the sliding door 30 removed from the floor rail 60.

The sliding door structure 1 further includes a locking device 50 that locks the upper end 33 of the sliding door 30. The locking device 50 is, for example, a guide metal piece, and is fixed to the connection between the second vertical frame 22 and the upper frame 23 (the upper right corner of the opening frame 20 in FIG. 1) with a fastener such as a screw.

The locking device 50 is a metal fitting that allows the sliding door 30 to move (slide) between the closed position and the open position, and prevents the sliding door 30 from falling onto the floor surface F0. Specifically, as shown in the vertical cross-sectional view of FIG. 4, a vertically downward recessed groove 33A is formed in the upper end 33 of the sliding door 30, and the locking device 50 is formed in a curved shape so as to fit into the recessed groove 33A. In this way, the locking device 50 fits into the recessed groove 33A of the sliding door 30 to lock the upper end 33, thereby preventing the sliding door 30 from falling toward the floor surface F0 on the first living space S1 side. Note that the locking device 50 is not an essential component of the sliding door structure of the present invention, and can be omitted.

The restricting portion 40 is a member that restricts the movement of the sliding door 30 in the closed position, and is attached to the first vertical frame 21 (first protruding portion 21A). The restricting portion 40 is provided so as to be substantially flush with the first vertical frame 21 on the opening 11 side. The restricting portion 40 is fixed to the first protruding portion 21A with fasteners such as screws and adhesive, and is also fixed to the first wall surface 15A with adhesive.

As shown in FIG. 1, the restricting portion 40 is a columnar member that extends vertically along the first vertical frame 21 and has approximately the same height as the first vertical frame 21. The thickness (width in the wall thickness direction) of the restricting portion 40 is greater than that of the first protruding portion 21A. In this embodiment, the restricting portion 40 is fixed only to the first vertical frame 21 (first protruding portion 21A) and the wall 10 (first wall surface 15A), and is not fixed to other members.

The restricting portion 40 has a receiving portion 41 that receives a force from the door end 31 in the moving direction (wall surface direction) of the sliding door 30, and an extension portion 42 that extends from the receiving portion 41 toward the wall 10 (first wall surface 15A). The receiving portion 41 and the extension portion 42 each have a rectangular cross section and extend in the vertical direction. As shown in Figures 2 and 3, the receiving portion 41 is positioned so as to overlap with the sliding door 30 in the wall surface direction. From another perspective, the receiving portion 41 is positioned (extends) toward the first living space S1 side in the wall thickness direction more than the first protruding portion 21A so as to be able to receive the door end 31 of the sliding door 30. In addition, a recess 41A that conforms to the shape of the door end 31 is formed on the surface (receiving surface) of the receiving portion 41 that faces the sliding door 30 side.

The extension portion 42 faces the first protrusion portion 21A at a position opposite the sliding door 30 (opening 11) in the wall surface direction. That is, as shown in Figures 2 and 3, the extension portion 42 is positioned so as to overlap the first protrusion portion 21A in the wall surface direction.

More specifically, the first protruding portion 21A has a first surface 26 located on the sliding door 30 side (opening 11 side) in the wall surface direction and extending in the wall thickness direction, a second surface 24 located on the opposite side of the first surface 26 in the wall surface direction and extending parallel to the first surface 26, and a third surface 25 that connects the end of the first surface 26 on the regulating portion 40 side and the end of the second surface 24 on the regulating portion 40 side and extends in the wall surface direction. As shown in Figures 2 and 3, the receiving portion 41 is a portion of the regulating portion 40 that is located closer to the first living space S1 than the third surface 25 in the wall thickness direction. On the other hand, the extension portion 42 is a portion of the regulating portion 40 that is located closer to the wall 10 than the third surface 25 in the wall thickness direction.

The receiving portion 41 contacts the third surface 25 and is fixed to the third surface 25 by a fastener such as a screw and adhesive. A plurality of these screws are provided at intervals along the length (vertical direction) of the restricting portion 40. The extension portion 42 contacts the second surface 24 and is fixed to the second surface 24 by adhesive. The extension portion 42 also contacts the first wall surface 15A and is fixed to the first wall surface 15A by adhesive.

The sliding door structure 1 further includes a decorative frame 70 that surrounds the outer periphery of the first vertical frame 21 and the regulating portion 40. As shown in Figs. 2 and 3, the decorative frame 70 is formed in a curved shape extending from the contact portion with the second wall surface 16A to the contact portion with the first wall surface 15A so as to cover the entire outer periphery of the first vertical frame 21 and the regulating portion 40. The boundary between the first vertical frame 21 and the regulating portion 40 is shielded by the decorative frame 70. The decorative frame 70 is made of, for example, thin MDF, but is not limited to this. Note that the decorative frame 70 is omitted in Fig. 1 for convenience of explanation.

The portion of the decorative frame 70 that covers the recess 41A of the receiving portion 41 is recessed along the recess 41A, and the door tip 31 of the sliding door 30 abuts against this portion. In addition, there is a gap between the surface of the restricting portion 40 opposite the receiving surface and the decorative frame 70, and a spacer 71 is disposed in the gap. In this way, by providing a gap between the restricting portion 40 and the decorative frame 70, construction errors can be absorbed.

As described above, in the sliding door structure 1 according to this embodiment, the restricting portion 40 has an extension portion 42, which improves the mounting strength of the restricting portion 40 compared to a case in which the extension portion 42 is not provided. Specifically, this is as follows.

Figure 5 is an enlarged view of the vicinity of the door end 31 of the sliding door 30, with the decorative frame 70 omitted from the figure. As shown in Figure 5, when the sliding door 30 is moved to the closed position, a force F1 is applied from the door end 31 to the receiving portion 41 in one direction toward the wall surface (to the left in Figure 5). This force F1 includes a component that acts outside the center C1 of the regulating portion 40 in the wall thickness direction (toward the first living space S1).

For this reason, a clockwise rotational moment M1 in FIG. 5 is applied to the regulating portion 40, which results in the generation of a force F2 in which the extension portion 42 presses the first protrusion portion 21A (second surface 24) in the direction opposite to the force F1. This causes the extension portion 42 to press the first protrusion portion 21A, preventing the regulating portion 40 from coming off the first vertical frame 21 due to the force F1 that is generated when the door end 31 hits the door. Therefore, according to the sliding door structure 1 of this embodiment, it is possible to improve the mounting strength of the regulating portion 40 compared to when the regulating portion 40 does not have the extension portion 42.

The construction method for the sliding door structure 1 will now be described with reference to Figures 6 to 8. Before starting this construction method, the hinged door (not shown) that opens and closes the opening 11 in the wall 10 has been removed from the opening frame 20.

First, adhesive A1 is applied to the adhesive surface 40A of the restricting portion 40 (the surface that is to be adhered to the second surface 24, the third surface 25, and the first wall surface 15A) (FIG. 6). At this time, it is preferable to apply adhesive A1 over the entire vertical direction of the adhesive surface 40A.

Next, as shown in FIG. 7, the adhesive surface 40A of the restricting portion 40 is pressed against the second surface 24, the third surface 25, and the first wall surface 15A, and then the screws 100 are driven in to fix the restricting portion 40 to the first protruding portion 21A. At this time, it is preferable to drive the screws 100 in multiple positions in the vertical direction.

Next, adhesive A2 is applied to the entire outer surface of the first vertical frame 21 and the restricting portion 40 (Figure 8). Then, the inner surface of a separately prepared decorative frame 70 is pressed against the adhesive A2, and the decorative frame 70 is attached so as to surround the entire outer periphery of the first vertical frame 21 and the restricting portion 40. After that, the floor rail 60 is installed, the locking device 50 is attached, and the sliding door 30 is set up in this order, completing this construction method.

Here, we will explain other embodiments of the present invention.

In the above embodiment, the case where the extension portion 42 contacts the second surface 24 of the first protruding portion 21A has been described as an example, but a gap may be provided between the extension portion 42 and the second surface 24. Also, a gap may be provided between the extension portion 42 and the first wall surface 15A.

The restricting portion 40 may be screwed not only to the first vertical frame 21 but also to the wall 10 (first panel 15).

The sliding door structure of the present invention may be applied to an interior door of a house, i.e., a part that divides the space inside the house into two living spaces, but is not limited to this. For example, it may be applied to a storage door inside the house, or to an entrance/exit of the house (a part that divides the space inside the house from the space outside the house).

The opening frame may be a two-sided frame consisting of only the first vertical frame 21 and the second vertical frame 22, without including the upper frame 23.

In the above embodiment, the sliding door 30 is supported from below by the floor surface F0, but this is not limiting. For example, a horizontal member (lintel) may be provided that projects from the upper frame 23 (FIG. 1) toward the first living space S1 (the front side in FIG. 1), a rail for sliding is provided on this member, and the sliding door 30 may be hung from the rail. In this case, the upper end of the regulating part 40 can be fixed to the horizontal member, so that the mounting strength of the regulating part 40 can be further improved. In contrast, in the above embodiment, the horizontal member is not provided, so the problem of insufficient strength of the regulating part 40 becomes prominent, but this is solved by providing the extension part 42 as described above.

The decorative frame 70 is not an essential component of the sliding door structure of the present invention and may be omitted.

The embodiments disclosed herein are illustrative in all respects and should not be construed as limiting. The scope of the present invention is indicated by the claims rather than the above description, and is intended to include all modifications within the meaning and scope of the claims.

1 Sliding door structure 10 Wall 11 Opening 13 First vertical edge portion (vertical edge portion)
15A First wall surface 16A Second wall surface 21 First vertical frame 21A First protruding portion (protruding portion)
24 Second surface 26 First surface 30 Sliding door 31 Door end 33 Upper end 34 Lower end 40 Restricting portion 41 Receiving portion 42 Extension portion 50 Locking device 70 Decorative frame A1 Adhesive F0 Floor surface

Claims (7)

A wall having an opening formed therein;
A vertical frame is attached to a vertical edge portion of the wall on the opening side along a vertical direction;
a sliding door movable between a closed position of the opening and an open position of the opening;
A restricting portion restricts the movement of the sliding door at the closed position,
The vertical frame is:
A vertical frame main body portion that faces a surface of the wall that extends in a thickness direction of the wall on the opening side in a moving direction of the sliding door;
A protruding portion connected to the vertical frame main body portion and protruding outward in the thickness direction beyond the wall;
Including,
The regulating portion is
A receiving portion fixed to the protruding portion so as to be disposed on the outer side of the protruding portion in the thickness direction, and receiving a force from a door edge of the sliding door in a moving direction of the sliding door;
a receiving portion extending toward the wall so as to face the protrusion portion at a position opposite the sliding door in the movement direction, the receiving portion being positioned toward the wall toward the wall in a closing direction which is a direction from the open position to the closed position among the movement directions, the receiving portion being positioned toward the wall toward the wall. The protruding portion includes a first surface located on the sliding door side in the movement direction and a second surface located on the opposite side to the first surface in the movement direction,
The sliding door structure according to claim 1 , wherein the extension portion is in contact with the second surface. The sliding door structure of claim 2, wherein the extension is fixed to the second surface by adhesive. The wall includes a first wall surface facing the restricting portion and a second wall surface facing a side opposite to the first wall surface in a thickness direction of the wall,
The protruding portion protrudes outward beyond the first wall surface,
The sliding door structure according to any one of claims 1 to 3, wherein the extension portion is in contact with the first wall surface. The sliding door structure of claim 4, wherein the extension is fixed to the first wall surface by adhesive. The sliding door structure according to any one of claims 1 to 5, further comprising a decorative frame surrounding the outer periphery of the vertical frame and the restricting portion. The sliding door is supported by a floor surface in a state aligned with the vertical direction,
The locking device further includes a locking device that locks an upper end portion of the sliding door, the locking device allowing the sliding door to move between the closed position and the open position and preventing the sliding door from falling onto the floor surface,
The sliding door structure according to any one of claims 1 to 6, wherein the regulating portion is fixed only to the vertical frame and the wall.

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