JP2024000611A - sliding door device - Google Patents

Abstract

To provide a sliding door device that allows an upper rail, a lower rail, and lower rollers to be inconspicuous.SOLUTION: An upper rail 7 is attached to an underside of an upper frame 10 of an opening part 4. An upper part of a door end side of a sliding door 2 is attached, via an outset bracket 11, to roller traveling bodies traveling on the upper rail 7. A guide rail 14 is attached to the upper part of the sliding door 2. A guide part that engages the guide rail 14 to prevent the sliding door 2 from swinging back and forth is attached to a wall body 3. A lower rail 8 is attached to a floor surface of a wall surface storage part 5. The lower rail 8 does not extend further toward the opening part 4 than the sliding door 2 in the open position. A lower roller traveling on the lower rail 8 is attached on a lower part of a door tail side of the sliding door 2. A lower part of the door end side of the sliding door 2 is not provided with the lower roller traveling on the lower rail 8.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sliding door device for sliding a sliding door.

Sliding doors include inset sliding doors that are placed inside an opening in a wall, and outset sliding doors that are placed outside of an opening. The outset sliding door opens and closes the opening by sliding between the opening and a wall housing section on the side of the opening.

As a sliding door device for sliding an outset sliding door, Patent Document 1 discloses that an upper rail is attached to the upper part of the opening of the wall so as to protrude, a lower rail is attached to the lower part of the opening, and the upper rail and the lower rail are connected. A sliding door device is disclosed in which a sliding door is slidably arranged therebetween. Lower rollers that run on lower rails are attached to the lower door end and door end sides of the sliding door. A guide roller is attached to the top of the sliding door that engages with the upper rail to prevent the sliding door from swinging back and forth.

Japanese Patent Application Publication No. 2000-199377

However, in conventional sliding door devices, the upper rail, lower rail, and lower roller are conspicuous, so there is a problem that the appearance is poor.

The present invention solves the above problems, and aims to provide a sliding door device that can make the upper rail, lower rail, and lower roller less noticeable.

In order to solve the above problems, one aspect of the present invention provides a sliding door device that slides a sliding door between an opening and a wall housing section on the side of the opening, which is attached to the lower surface of the upper frame of the opening. a roller running body that runs on the upper rail and is attached to the upper part of the door end side of the sliding door via an outset bracket; a guide rail that is attached to the upper part of the sliding door; , a guide portion that engages with the guide rail to prevent the sliding door from swinging back and forth; a lower rail that is attached to the floor surface of the wall housing portion; a lower roller that runs on a rail, the lower rail does not extend further toward the opening than the sliding door in the open position, and the lower roller runs on the lower rail at a lower portion on the door end side of the sliding door. This is a sliding door device that does not have a lower roller.

According to the present invention, the upper rail, lower rail, and lower roller can be made inconspicuous. In addition, the sliding door is supported at two diagonal locations (the roller running body at the upper part of the door edge side and the lower roller at the lower part of the door end side), and when the sliding door slides, the sliding direction of the roller running body and the lower roller is The interval between is always constant. Therefore, stability when the sliding door slides can be ensured.

FIG. 1 is a perspective view of a sliding door device according to a first embodiment of the present invention. FIG. 2 is a front view of the sliding door device of this embodiment (FIG. 2(a) shows the sliding door in a closed state, and FIG. 2(b) shows the sliding door in an open state). It is a perspective view of the upper rail of the sliding door device of this embodiment, and a guide roller. It is a perspective view of the upper rail of the sliding door device of this embodiment, a traveling body, and a guide rail. It is a perspective view of the upper rail of the sliding door device of this embodiment, and a traveling body. It is a longitudinal cross-sectional view of the sliding door device of this embodiment. It is a front view of the sliding door device of the 2nd embodiment of the present invention (sliding door closed state). It is a front view of the sliding door device of the 2nd embodiment of the present invention (sliding door opened state). 9 is a sectional view taken along line IX-IX in FIG. 8. FIG.

Hereinafter, a sliding door device according to an embodiment of the present invention will be described with reference to the drawings. However, the sliding door device of the present invention can be embodied in various forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided with the intention that this disclosure will be thorough and thorough, and will fully enable those skilled in the art to understand the invention.
(First embodiment)

FIG. 1 shows a perspective view of a sliding door device 1 according to a first embodiment of the present invention. The sliding door 2 is an outset sliding door and is offset to the outside of the opening 4 of the wall 3. The sliding door 2 slides between the opening 4 and a wall accommodating portion 5 on the side of the opening 4 (on the right side in FIG. 1). In the following description, the configuration of the sliding door device 1 will be explained using each direction when the sliding door 2 is viewed from the front, that is, the up and down, left and right, and front and rear directions in FIG.

2(a) shows the closed position of the sliding door 2, and FIG. 2(b) shows the opened position of the sliding door 2. The broken line in FIG. 2(a) represents the opening 4, and the two-dot chain line (imaginary line) in FIG. 2(b) represents the sliding door 2 in the closed position. The wall body 3 has a covering portion 6 (hatched portion in FIG. 2(b)) that overlaps the sliding door 2 whether the sliding door 2 is closed or opened.

As shown in FIG. 1, an upper rail 7 is attached to the lower surface of the upper frame 10 of the opening 4. A lower rail 8 is attached to the floor surface of the wall accommodating section 5. The sliding door 2 is arranged between the upper rail 7 and the lower rail 8.

As shown in FIG. 4, a roller running body 9 is incorporated into the upper rail 7. The upper part of the sliding door 2 on the door end side is attached to the roller traveling body 9 via an outset bracket 11.

As shown in FIGS. 2(a) and 2(b), a lower roller 12 running on a lower rail 8 is attached to the lower part of the sliding door 2 on the door end side.

The sliding door 2 slides between the opening 4 and the wall accommodating part 5 while being supported at two diagonal locations (the roller running body 9 at the upper part of the door end side and the lower roller 12 at the lower part of the door end side). . When the sliding door 2 slides, the distance between the roller traveling body 9 and the lower roller 12 in the sliding direction is always constant.

As shown in FIG. 4, a guide rail 14 is attached to the upper part of the back side of the sliding door 2. As shown in FIG. 3, a guide roller 15 as a guide portion is attached to the upper part of the covering portion 6 (see FIG. 2(b)). As shown in FIG. 6, the guide roller 15 engages with the guide rail 14 to prevent the sliding door 2 from swinging back and forth.

Below, the configuration of each part of the sliding door device 1 will be explained. As shown in FIG. 6, the upper frame 10 is formed with a recess 10a. The upper rail 7 is buried in the recess 10a. Therefore, the upper rail 7 cannot be seen from either the front or the rear. The upper rail 7 has a channel-shaped cross section, and includes an upper wall 7a, a pair of side walls 7b, and a pair of bottom walls 7c protruding from the lower part of the side walls 7b. A roller running portion 7c1 on which the roller 9b runs is formed on the upper surface of the bottom wall 7c.

As shown in FIG. 4, the roller running body 9 is incorporated inside the upper rail 7 and runs on the roller running portion 7c1 of the upper rail 7. The roller traveling body 9 includes a main body 9a and a plurality of upper rollers 9b rotatably attached to the main body 9a. Four or more upper rollers 9b are provided on the front, rear, left and right sides of the main body 9a. The upper roller 9b is rotatable around a horizontal axis.

A vertical shaft 9c (see also FIG. 6) is attached to the main body 9a. An outset bracket 11 is attached to the lower end of the vertical shaft 9c. The outset bracket 11 has an L-shaped cross section and includes a horizontal piece 11a attached to the vertical shaft 9c, and a vertical piece 11b bent 90 degrees upward from the horizontal piece 11a. The horizontal piece 11a is covered with a cover 17. Thereby, as shown in FIG. 5, the appearance of the outset bracket 11 when viewed from below can be improved. The vertical piece 11b is arranged forward of the upper frame 10 (see FIG. 6). A mounting hole 11b1 for mounting the outset sliding door 2 is formed in the vertical piece 11b.

As shown in FIG. 1, a lower rail 8 is attached to the floor surface of the wall accommodating section 5. The lower rail 8 extends in the left-right direction. As shown in FIG. 2(b), the lower rail 8 does not extend further toward the opening 4 (to the left in FIG. 2(b)) than the sliding door 2 in the open position. In other words, the lower rail 8 is arranged closer to the door end than the end of the sliding door 2 in the open position. However, when the sliding door 2 is removed, the lower rail 8 extends to the opening 4. The floor surface of the opening 4 is formed flat. As shown in FIG. 6, a roller groove 8a in which the lower roller 12 runs is formed in the center of the upper surface of the lower rail 8.

As shown in FIGS. 2(a) and 2(b), a lower roller 12 is attached to the bottom of the sliding door 2 on the door end side. The lower roller 12 is rotatable around a horizontal axis. As shown in FIG. 6, a housing 18 that rotatably supports the lower roller 12 is embedded in a recess 2a formed in the bottom surface of the sliding door 2. The lower roller 12 has a lower portion protruding below the sliding door 2 and runs on the roller groove 8a of the lower rail 8.

As shown in FIGS. 2(a) and 2(b), the lower roller 12 is not provided at the bottom of the sliding door 2 on the door end side. The lower part of the sliding door 2 is supported only by the lower roller 12 on the door tail side.

As shown in FIG. 4, a notch 2b is formed in the upper part of the back side of the sliding door 2. A guide rail 14 is attached to the notch 2b. The guide rail 14 has a U-shaped cross section. The guide rail 14 has a side wall 14a attached to the notch 2b, an upper wall 14b bent at the upper end of the side wall 14a, and a bottom wall 14c bent at the lower end of the side wall 14a. As shown in FIG. 6, a roller groove 14b1 in which the guide roller 15 runs is formed on the lower surface of the upper wall 14b.

As shown in FIG. 4, a closing closer 19 and an opening closer 20 may be attached to the guide rail 14. The closing closer 19 captures a trigger (not shown) attached to the wall 3 and automatically moves the sliding door 2, which has moved close to the closed position, to the closed position. The opening closer 20 captures a trigger (not shown) attached to the wall 3 and automatically moves the sliding door 2 that has moved close to the opening position to the opening position.

As shown in FIG. 3, the guide roller 15 is arranged above the covering portion 6 of the wall 3. As shown in FIG. Two guide rollers 15 are provided on the left and right, and are rotatably supported by a bracket 21 attached to the wall 3. As shown in FIG. 6, the bracket 21 has a crank-shaped cross section. A guide roller 15 is attached to the upper part of the bracket 21 so as to be rotatable about a horizontal axis. The guide roller 15 engages with the guide rail 14 in front of the back surface 2c of the sliding door 2.

The configuration of the sliding door device 1 of this embodiment has been described above. According to the sliding door device 1 of this embodiment, the following effects are achieved.

Since the upper rail 7 is attached to the lower surface of the upper frame 10, the upper rail 7 can be made inconspicuous. The lower rail 8 is attached to the floor of the wall accommodating portion 5, but does not extend to the opening 4. Therefore, the lower rail 8 can be made less noticeable. The lower roller 12 is provided only at the lower part of the sliding door 2 on the door end side, and is not provided at the lower part on the door end side. Therefore, the lower roller 12 can be made less noticeable.

The sliding door 2 is supported at two diagonal positions (the roller running body 9 at the upper part of the door edge side and the lower roller 12 at the lower part of the door end side), and when the sliding door 2 slides, the roller running body 9 and the lower roller The distance between the rollers 12 in the sliding direction is always constant. Therefore, stability when the sliding door 2 slides can be ensured.

Since the roller traveling body 9 has a plurality of upper rollers 9b, it is possible to stably support the outset sliding door 2.

Since the upper rail 7 is buried in the recess 10a of the upper frame 10, the upper rail 7 can be hidden.

Since the notch 2b to which the guide rail 14 is attached is formed in the upper part of the back side of the sliding door 2, the distance between the wall body 3 and the sliding door 2 in the front-rear direction can be narrowed. Further, the guide roller 15 is rotatable around the horizontal axis, and the guide roller 15 engages with the guide rail 14 in front of the back surface 2c of the sliding door 2, so a moment around the left and right axis is generated in the sliding door 2. It is possible to prevent this from happening.
(Second embodiment)

7 and 8 show a sliding door device 31 according to a second embodiment of the present invention. 7 shows the closed position of the sliding door 2, and FIG. 8 shows the opened position of the sliding door 2. 3 is a wall, 2 is a sliding door, and 4 is an opening. The opening 4 is defined by an upper frame 32a and a pair of left and right vertical frames 32b.

As shown in FIG. 9, the upper rail 7 is embedded in the upper frame 32a. A roller running body 9 is incorporated into the upper rail 7. A sliding door 2 is attached to the roller traveling body 9 via an outset bracket 11. As shown in FIG. 7, a lower rail 8 is attached to the floor surface of the wall accommodating portion 5. A lower roller 12 running on a lower rail 8 is attached to the lower part of the sliding door 2 on the door end side. The configurations of the upper rail 7, roller running body 9, lower rail 8, and lower roller 12 are substantially the same as those of the sliding door device 1 of the first embodiment, so the same reference numerals are given and the explanation thereof will be omitted.

In the first embodiment, the guide part is a guide roller 15 that rotates around a horizontal axis, whereas in the second embodiment, as shown in FIG. 9, the guide part is a guide shaft 34 facing in the vertical direction. It is. The guide shaft 34 is supported by a bracket 35 attached to the wall 3.

A recess 2d is formed in the upper surface of the sliding door 2. A guide rail 36 whose top is open is buried in the recess 2d. The guide shaft 34 is inserted into the upper part of the guide rail 36. The guide shaft 34 and the guide rail 36 prevent the sliding door 2 from swinging back and forth. As in this embodiment, a guide shaft 34 may be used instead of the guide roller 15.

1... Sliding door device 2... Sliding door 2b... Notch 3... Wall body 4... Opening 5... Wall housing portion 7... Upper rail 8... Lower rail 9... Roller running body 9b... Upper roller 10... Upper frame 10a... Recess 11 ... Outset bracket 12 ... Lower roller 14 ... Guide rail 15 ... Guide roller (guide part)
31... Sliding door device 32a... Upper frame 34... Guide shaft (guide part)
36...Guide rail

Claims (4)

In a sliding door device that slides a sliding door between an opening and a wall housing section on a side of the opening,
an upper rail attached to the lower surface of the upper frame of the opening;
a roller running body that runs on the upper rail and is attached to the upper part of the sliding door on the door end side via an outset bracket;
a guide rail attached to the top of the sliding door;
a guide portion that is attached to a wall and engages with the guide rail to prevent the sliding door from swinging back and forth;
a lower rail attached to the floor of the wall housing section;
a lower roller attached to the lower part of the door end side of the sliding door and running on the lower rail,
The lower rail does not extend further toward the opening than the sliding door in the open position,
A sliding door device in which a lower roller running on the lower rail is not provided at a lower portion on the door end side of the sliding door. The sliding door device according to claim 1, wherein the roller traveling body has a plurality of upper rollers. The sliding door device according to claim 1 or 2, wherein the upper rail is buried in a recess of the upper frame. The guide portion is a guide roller that rotates around a horizontal axis,
A notch to which the guide rail is attached is formed on the back side of the upper part of the sliding door,
The sliding door device according to claim 1 or 2, wherein the guide roller engages with the guide rail in front of the back surface of the sliding door.

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