JP7590635B2 - Sliding door structure - Google Patents

Description

The present invention relates to a sliding door structure, and more specifically to a technology that improves the design of the sliding door structure.

Conventionally, partition structures made up of pillars, panels, doors, etc. have been used (see, for example, Patent Document 1). Patent Document 1 describes a partition structure in which partition panels, doors, auxiliary panels, etc. are provided between multiple pillars.

JP 2012-132296 A

In partition structures constructed as described in the above patent documents, both the sliding door and the door pocket may be constructed from glass plates. In such cases, if the position or dimensions of the bottom frame of the sliding door differ from the bottom frame of the door pocket, there is a problem in that the design of the sliding door structure is reduced.

The present invention was made in consideration of the above situation, and the problem that the present invention aims to solve is to provide a sliding door structure that can improve the design of the sliding door structure by making the position and dimensions of the bottom frame of the sliding door and the bottom frame of the door case the same when both the sliding door and the door case are made of glass.

To solve the above problems, the present invention provides a sliding door structure configured as follows:

(1) A sliding door structure comprising a rail attached to a ceiling, a sliding door suspended from the rail so as to be openable and closable, a baseboard member attached to a floor surface, and a door pocket for accommodating the sliding door in an open state, wherein the sliding door comprises two door glass panels and a sliding door bottom frame supporting the lower part of the door glass panels, the door pocket comprises a door pocket bottom frame supported by the baseboard member, and two door pocket glass panels arranged in a pair on either side of the sliding door track and whose outer peripheries are held by the door pocket bottom frame so as not to move relative to each other, the front of the sliding door bottom frame and the front of the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension, the sliding door bottom frame is formed so that the outer upper end surfaces of the two door glass panels and the upper end surface between the two door glass panels are on the same plane, and the door pocket bottom frame is formed so that the inner and outer upper end surfaces of the door pocket glass panels are on the same plane .

(2) The sliding door structure described in (1) above, in which the sliding door lower frame is provided with a guided portion formed along the longitudinal direction and a sealing member arranged parallel to the guided portion to close the gap between the lower end of the sliding door and the floor surface, and a guide member is provided below the sliding door to guide the sliding door by sliding against the guided portion.

(3) The sliding door structure described in (2), wherein a recess opening downward is formed in the guided portion along the longitudinal direction, the sealing member is provided outside the recess at one end of the thickness direction of the sliding door, and a guide roller inserted into the recess is provided as the guide member, and the guide roller guides the sliding door by sliding against the inner surface of the guided portion.

(4) A sliding door structure including a rail provided on a ceiling, a sliding door suspended from the rail so as to be openable and closable, and a door pocket for accommodating the sliding door in an open state, wherein the sliding door includes one or more door glass panels and a sliding door bottom frame supporting a lower portion of the door glass panels, and the door pocket includes one or more door pocket glass panels and a door pocket bottom frame supporting a lower portion of the door pocket glass panels, the facing of the sliding door bottom frame and the facing of the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension, and the sliding door bottom frame is provided with a guided portion formed along the longitudinal direction and a sealing member disposed parallel to the guided portion to close a gap between a lower end of the sliding door and a floor surface, and a guide member that guides the sliding door by sliding against the guided portion is provided below the sliding door, a recess that opens downward is formed in the guided portion along the longitudinal direction, the seal member is provided inside the recess, and two guide members are provided parallel to each other along the longitudinal direction of the door pocket, a first guide rail located on one side of the sliding door and a second guide rail located on the other side of the sliding door, and when the sliding door is in an open state, the seal member is disposed between the first and second guide rails, and the first guide rail and the second guide rail slide against the guided portion to guide the sliding door.

(5) The sliding door structure described in (4), wherein the guided portion includes a first guided surface that constitutes one inner side of the recess and a second guided surface that faces the first guided surface and constitutes the other inner side of the recess, the first guide rail and the second guide rail are inserted between the first guided surface and the second guided surface, the first guide rail slides against the first guided surface, and the second guide rail slides against the second guided surface.

(6) A sliding door structure including a rail provided on a ceiling, a sliding door suspended from the rail so as to be openable and closable, and a door pocket for accommodating the sliding door in an open state, wherein the sliding door includes one or more door glass panels and a sliding door bottom frame supporting a lower portion of the door glass panels, and the door pocket includes one or more door pocket glass panels and a door pocket bottom frame supporting a lower portion of the door pocket glass panels, the facing of the sliding door bottom frame and the facing of the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension, and the sliding door bottom frame is provided with a guided portion formed along the longitudinal direction and a sealing member disposed parallel to the guided portion to close a gap between a lower end of the sliding door and a floor surface, a guide member is provided below the sliding door, which guides the sliding door by sliding against the guided portion, a recess that opens downward is formed in the longitudinal direction of the guided portion, the sealing member is provided outside the recess, at one end of the sliding door in the thickness direction, a guide roller is provided as the guide member and is inserted inside the recess, the guide roller guides the sliding door by sliding against the inner surface of the guided portion, the guide roller is fixed to the floor surface via a fixed plate, and a fixed portion of the fixed plate with the floor surface extends from the space below the sliding door to the outside of the other end side of the sliding door in the thickness direction.

(7) A sliding door structure described in any one of (2) to (6), wherein a clearance between an inner surface of the door pocket bottom frame and an outer surface of the sliding door bottom frame opposite the inner surface is configured to be larger than a clearance between the guided portion and the guide member in a direction perpendicular to the trajectory of the sliding door.

According to the sliding door structure of the present invention described above, the positions and dimensions of the appearance of the bottom frame of the sliding door and the appearance of the bottom frame of the door pocket match, making it possible to improve the design when opening and closing the sliding door.

FIG. 1 is a front view showing a sliding door structure according to a first embodiment. 2 is a cross-sectional view taken along line XX in FIG. 1 . 2 is a cross-sectional view taken along line YY in FIG. 1 . 2 is a cross-sectional view taken along line Z-Z in FIG. 1 . FIG. 4 is a partially enlarged view of FIG. FIG. 6 is a front view showing a sliding door structure according to a second embodiment. Cross-sectional view taken along line AA in FIG. 6. Cross-sectional view taken along line BB in FIG. 6. Cross-sectional view taken along line CC in FIG. 8 . FIG. 4 is a perspective view showing a configuration of a guide member. 6A to 6C are perspective views showing an assembly procedure of the guide member.

The sliding door structure according to the first embodiment of the present invention will be described below with reference to Figures 1 to 5. As shown in Figure 1, the sliding door structure according to this embodiment comprises a sliding door 7 and a door pocket 8 provided between a floor surface F and a ceiling C. As shown in Figures 1 to 5, the sliding door structure is formed so as to be symmetrical in the front-to-back direction of the sliding door 7 (the left-to-right direction in Figures 2 and 3). As shown in Figure 1, the sliding door structure comprises a baseboard member 1 provided on the floor surface F and a top rail 2 provided on the ceiling C. The baseboard member 1 supports a lower frame 81 that constitutes the door pocket 8.

As shown in Figures 1 to 3, the top frame 4 is fixed to the top rail 2. The top frame 4 holds the upper ends of the door pocket glass panels 82, 82 that make up the door pocket 8. As shown in Figures 2 and 3, the rail 6 for the sliding door 7 is provided on the underside of the top frame 4. In this way, the rail 6 is provided on the ceiling C via the top rail 2 and the top frame 4.

The sliding door 7 is suspended from the rail 6 so that it can be opened and closed. Specifically, as shown in Figs. 1 to 4, the sliding door 7 comprises an upper frame member 73 provided at the top, a lower frame member 75, which is the sliding door bottom frame provided at the bottom, a door-leading side frame member 76 provided at the side on the door leading side, and a door-ending side frame member 77 provided at the side on the door trailing side.

The two door glass panels 74, 74, which are rectangular panels, are held at their outer periphery by these frame members 73, 75, 76, and 77. In this way, the sliding door 7 is equipped with door glass panels 74, 74 made of double glass. It is also possible for the sliding door 7 to be configured with a door glass panel 74 made of single glass. In other words, the sliding door 7 can be equipped with one or more door glass panels 74.

A suspension member 72 extends from the top surface of the upper frame member 73, and rollers 71 are provided at the upper end of the suspension member 72. The rollers 71 are housed inside the rail 6 so that they can roll, allowing the sliding door 7 to slide along the rail 6.

The door pocket 8 houses the sliding door 7 in the open state. Specifically, as shown in Figures 1, 3, and 4, the door pocket 8 includes an upper frame 4 fixed to the top rail 2, a frame body 80 provided on the side, and a lower frame 81, which is a door pocket lower frame, fixed to the baseboard member 1.

The upper frame 4, the frame body 80, and the lower frame 81 hold the outer periphery of two rectangular glass panels 82. As shown in FIG. 5, the lower frame 81 is provided with a removable aluminum glass pressing frame 81s that constitutes the outer surface of the lower frame 81. The glass pressing frame 81s is then removed from the lower frame 81, and the glass pressing frame 81s is fitted into the lower frame 81. A hard resin packing is then inserted between the glass pressing frame 81s and the door pocket glass panel 82, thereby fixing the door pocket glass panel 82 to the lower frame 81. In this way, the door pocket 8 is provided with the door pocket glass panels 82, 82 made of double glass. It is also possible to configure the door pocket 8 to have the door pocket glass panel 82 made of single glass that is offset to one side. In this way, the door pocket 8 can also be provided with one or more door pocket glass panels 82, just like the sliding door 7.

In the sliding door structure configured as described above, the sliding door 7 slides along the rail 6 and advances and retreats from the door pocket 8, thereby opening and closing the sliding door 7. In this embodiment, the state in which the sliding door 7 slides leftward in FIG. 1 and is extended from the door pocket 8 is described as the closed state of the sliding door 7, and the state in which the sliding door 7 slides rightward in FIG. 1 and is housed in the door pocket 8 is described as the open state of the sliding door 7.

As shown in Fig. 4, in the sliding door structure according to this embodiment, when the sliding door 7 is in the closed state, the trailing edge frame member 77 is configured to fit within the width (front view width) of the frame body 80. In addition, when the sliding door 7 is in the closed state, the trailing edge frame end face 77a, which is the end face (right end face) of the trailing edge frame member 77 on the door pocket 8 side, and the frame end face 80a, which is the end face (right end face) of the frame body 80 on the opposite side of the sliding door 7, are configured to be flush (the position of the trailing edge frame end face 77a and the position of the frame end face 80a are approximately the same when viewed from the front).

As shown in FIG. 4, a tail seal member 79 made of a soft material is attached to the tail end of the tail frame member 77. When the sliding door 7 is in the closed state, the tail seal member 79 seals the gap with the frame body 80 (frame end surface 80a), thereby ensuring sound insulation in the sliding door structure.

Furthermore, a blocking material 80b is provided on the inner surface of the frame body 80 along the longitudinal direction of the frame body 80. The blocking material 80b can prevent insects and the like from entering the inside of the door pocket 8 through the gap with the end-of-door frame material 77. In this embodiment, the blocking material 80b is made by bundling fibrous materials such as chemical fibers or natural fibers.

As shown in Figures 1 and 4, a door stop frame 3 is provided on the door end side of the sliding door 7. When the sliding door 7 is in a closed state, the door end side frame material 76 of the sliding door 7 (more specifically, the seal member provided on the door end side frame material 76) abuts against the door stop frame 3. A cover member 5 is provided between the upper end of the door stop frame 3 and the upper end of the frame body 80 to cover the hanging member 72 and the upper frame material 73 when the sliding door 7 is in a closed state. In addition, a handle 91 and a lock 92 are attached to the door end side of the sliding door 7.

In the sliding door structure according to this embodiment, as shown in Figs. 1 and 5, the lower frame material 75 of the sliding door 7 (width dimension D1 shown in Figs. 1, 2, and 5) and the lower frame 81 of the door pocket 8 (width dimension D2 shown in Figs. 1 and 5) are formed at the same position in the vertical direction and with approximately the same width dimension. In this specification, the term "approximately the same" is used to mean that the user of the sliding door structure feels that they are the same width dimension when visually inspected without any discomfort. Specifically, in this embodiment, the range of "approximately the same" is set to within ±3 mm. As a result, the lower frame material 75 and the lower frame 81 are visually recognized by the user as a continuous shape as shown in Fig. 1, so that the design of the sliding door 7 when moving it forward and backward from the door pocket 8 in the sliding door structure can be improved.

Moreover, it is more preferable to form the width of the lower frame material 75 to be the same as or slightly smaller (approximately 0 mm to -3 mm) than the width of the bottom frame 81. If the width of the lower frame material 75 is larger than the width of the bottom frame 81, the lower frame material 75 will protrude when the sliding door 7 is housed in the door pocket 8, making it easier to see from the outside. For this reason, in this embodiment, the width of the lower frame material 75 is formed to be approximately 1 mm smaller than the width of the bottom frame 81.

As shown in FIG. 5, in the sliding door structure according to this embodiment, the upper outer end 81c (more specifically, the upper end of the glass retaining frame 81s) and the upper inner end 81d of the lower frame 81 at the holding portion of the door pocket glass plate 82, and the upper outer end 75c and the upper inner end 75d of the lower frame member 75 at the holding portion of the door glass plate 74 are unified in vertical positions. As a result, when a user visually checks the sliding door structure when the sliding door 7 is housed in the door pocket 8 (open state of the sliding door 7), the upper outer end 81c, the upper inner end 81d, the upper outer end 75c, and the upper inner end 75d are recognized as being on the same plane. That is, in this embodiment, it is possible to further improve the design of the sliding door structure.

In the sliding door structure according to this embodiment, the lower frame member 75 of the sliding door 7 is formed in a generally gate-shaped cross section along the longitudinal direction with a recess that opens downward, as shown in FIG. 2. The lower frame member 75 is formed with a guided portion that includes this recess. In detail, as shown in FIG. 5, of the inner surfaces of the recess formed on the lower surface of the lower frame member 75, the surface on one side of the sliding door 7 (the left side in FIG. 5) (the first guided surface 75a) is formed, and the surface on the other side of the sliding door 7 (the right side in FIG. 5) (the second guided surface 75b) is formed. In other words, the recess in the guided portion is formed by the inner peripheral surface of the space sandwiched between the first guided surface 75a and the second guided surface 75b in the lower frame member 75.

In addition, a seal member 78 that closes the gap between the lower end of the sliding door 7 and the floor surface F is provided between the first guided surface 75a and the second guided surface 75b. That is, the seal member 78 is arranged inside the recess formed in the lower frame material 75 so as to be parallel to the first guided surface 75a and the second guided surface 75b. A resin sliding member 78a is provided at the bottom of the seal member 78. The sliding member 78a is always in sliding contact with the floor surface F, thereby preventing sound and light leakage below the sliding door 7. It is also possible to configure the seal member 78 to be separated from the floor surface F when the sliding door 7 is open, and to be automatically displaced downward when the sliding door 7 is closed, closing the gap between the sliding door 7 and the floor surface F.

In the sliding door structure according to this embodiment, as shown in FIG. 5, a bottom frame 81 is fixed to the baseboard member 1 on the floor surface F of the door pocket 8 along the longitudinal direction of the door pocket 8. On the upper surface of the bottom frame 81, a first guide rail 81a located on one side of the sliding door 7 and a second guide rail 81b located on the other side are provided so as to be parallel to each other. The first guide rail 81a and the second guide rail 81b are one embodiment of the guide member according to the present invention. The first guide rail 81a and the second guide rail 81b are covered with a first sliding member 83a and a second sliding member 83b made of resin, respectively.

In the sliding door structure configured as described above, when the sliding door 7 is in the open state, as shown in FIG. 5, the seal member 78 is disposed between the first guide rail 81a and the second guide rail 81b. Then, when the sliding door 7 slides inside the door pocket 8, the first guide rail 81a (more specifically, the first sliding member 83a covering the first guide rail 81a, the same below) slides against the first guided surface 75a, and the second guide rail 81b (more specifically, the second sliding member 83b covering the second guide rail 81b, the same below) slides against the second guided surface 75b. That is, the first guide rail 81a and the second guide rail 81b, which are the guide members in this embodiment, slide against the inner surface of the recess formed in the lower frame material 75. In this way, the sliding door 7 is guided by the first guide rail 81a and the second guide rail 81b.

In the sliding door structure according to this embodiment, as described above, the sliding door 7 is guided by sliding the guide member provided in the door pocket 8 against the inner surface of the recess of the guided portion formed in the sliding door 7. Specifically, the two guided surfaces 75a and 75b are guided by two guide rails 81a and 81b provided along the door pocket 8. This makes it possible to stably guide the sliding door 7 along the longitudinal direction. In addition, by arranging the seal member 78 between the two guide rails 81a and 81b on the inside of the recess of the guided portion, the guided surfaces 75a and 75b and the seal member 78 can be arranged adjacent to each other in the horizontal direction in the sliding door 7. This makes it possible to make the vertical dimension of the sliding door 7 more compact than in a configuration in which the guided surfaces 75a and 75b and the seal member 78 are arranged offset vertically.

In addition, in the sliding door structure according to this embodiment, as shown in FIG. 5, the guide rails 81a and 81b are inserted between the guided surfaces 75a and 75b. The first guide rail 81a slides against the first guided surface 75a, and the second guide rail 81b slides against the second guided surface 75b.

As described above, in this embodiment, the guided surfaces 75a and 75b that slide on the guide rails 81a and 81b are configured to face the inside of the lower frame material 75. This prevents the guided surfaces 75a and 75b, which are prone to getting dirty, from being exposed when the sliding door 7 is closed, preventing the design of the sliding door structure from being impaired. It is also possible to configure the guide rails 81a and 81b to be positioned outside the guided parts of the lower frame material 75 to guide the sliding door 7.

In addition, in this embodiment, the clearance between the inner surface of the lower frame 81 and the outer surface of the lower frame material 75 is configured to be larger than the clearance between the guided surfaces 75a, 75b and the guide rails 81a, 81b (more specifically, the sliding members 83a, 83b). In this way, the outer surface of the lower frame material 75 does not rub against the inner surface of the lower frame 81, preventing scratches on the outer surface of the lower frame material 75 exposed to the outside.

Next, a sliding door structure according to a second embodiment of the present invention will be described with reference to Figures 6 to 11. As shown in Figure 6, the sliding door structure according to this embodiment comprises a sliding door 107 and a door pocket 108 provided between a floor surface F and a ceiling C. As shown in Figure 6, the sliding door structure comprises a baseboard member 101 provided on the floor surface F and a top rail 102 provided on the ceiling C. The baseboard member 101 supports a lower frame 181 that constitutes the door pocket 108.

As shown in Figures 6 and 7, an upper frame 104 is fixed to the top rail 102. The upper frame 104 holds the upper end of the door pocket glass plate 182 that constitutes the door pocket 108. As shown in Figure 7, a rail 106 for a sliding door 107 is provided on the underside of the upper frame 104. In this way, the rail 106 is provided on the ceiling C via the top rail 102 and the upper frame 104.

The sliding door 107 is suspended from a rail 106 so that it can be opened and closed. Specifically, as shown in Figures 6 to 8, the sliding door 107 is equipped with an upper frame member 173 provided at the top, a lower frame member 175, which is the sliding door lower frame provided at the bottom, a door-leading side frame member 176 provided on the side of the door leading side, and a door-ending side frame member 177 provided on the side of the door trailing side.

The two door glass panels 174, 174, which are rectangular panels, are held at their outer periphery by these frame members 173, 175, 176, 177. In this way, the sliding door 107 is equipped with door glass panels 174, 174 made of double glass. It is also possible for the sliding door 107 to be configured with a door glass panel 174 made of single glass. In other words, the sliding door 107 can be equipped with one or more door glass panels 174.

A suspension member 172 extends from the top surface of the upper frame member 173, and rollers 171 are provided at the upper end of the suspension member 172. The rollers 171 are housed inside the rail 106 so that they can roll, allowing the sliding door 107 to slide along the rail 106.

The door pocket 108 houses the sliding door 107 in the open state. Specifically, as shown in Figures 6 to 8, the door pocket 108 includes an upper frame 104 fixed to the top rail 102, a frame body 180 provided on the side, and a lower frame 181, which is a door pocket lower frame, fixed to the baseboard member 101.

The upper frame 104, the frame body 180, and the lower frame 181 hold the outer periphery of a rectangular panel, a door pocket glass plate 182. In this embodiment, a total of four door pocket glass plates 182 are provided, two on each side in the thickness direction of the door pocket 108. Note that the door pocket 108 can also be provided with one or more door pocket glass plates 182, just like the sliding door 107.

In the sliding door structure configured as described above, the sliding door 107 slides along the rail 106 and advances and retreats from the door pocket 108, thereby opening and closing the sliding door 107. In this embodiment, the state in which the sliding door 107 slides leftward in FIG. 6 and is extended from the door pocket 108 is described as the closed state of the sliding door 107, and the state in which the sliding door 107 slides rightward in FIG. 6 and is housed in the door pocket 108 is described as the open state of the sliding door 107.

As shown in Fig. 8, in the sliding door structure according to this embodiment, when the sliding door 107 is in the closed state, the trailing edge frame member 177 is configured to fit within the width (front view width) of the frame body 180. In addition, when the sliding door 107 is in the closed state, the trailing edge frame end face 177a, which is the end face (right end face) of the trailing edge frame member 177 on the door pocket 108 side, and the frame end face 180a, which is the end face (right end face) of the frame body 180 on the opposite side of the sliding door 107, are configured to be flush (the position of the trailing edge frame end face 177a and the position of the frame end face 180a are approximately the same when viewed from the front).

As shown in FIG. 8, a tail seal member 179 made of a soft material is attached to the tail end of the tail frame member 177. When the sliding door 107 is in the closed state, the tail seal member 179 seals the gap with the frame body 180 (frame end surface 180a), thereby ensuring sound insulation in the sliding door structure.

Furthermore, a blocking material 180b is provided on the inner surface of the frame body 180 along the longitudinal direction of the frame body 180. The blocking material 180b can prevent insects and the like from entering the inside of the door pocket 108 through the gap with the end-of-door frame material 177. In this embodiment, the blocking material 180b is made by bundling fibrous materials such as chemical fibers or natural fibers.

6 and 8, a door stop frame 103 is provided on the door end side of the sliding door 107. When the sliding door 107 is in a closed state, the door end side frame material 176 of the sliding door 107 (more specifically, the door end seal member 176a provided on the end surface of the door end side frame material 176) abuts against the door stop frame 103. Between the upper end of the door stop frame 103 and the upper end of the frame body 180, a cover member 105 is provided to cover the hanging member 172 and the upper frame material 173 when the sliding door 107 is in a closed state. In addition, a handle 191 and a key 192 are attached to the door end side end of the sliding door 107. In this embodiment, the handle 191 is configured to have a length of about 2/3 of the vertical length of the sliding door 107, thereby improving the overall rigidity of the sliding door 107 compared to the first embodiment.

As shown in Figs. 6 and 7, in the sliding door structure according to this embodiment, the face of the lower frame material 175 of the sliding door 107 (width dimension D3 shown in Figs. 6 and 7) and the face of the lower frame 181 of the door pocket 108 (width dimension D4 shown in Figs. 6 and 7) are formed at the same position in the vertical direction and with approximately the same width dimension. In this embodiment, as in the first embodiment, the range of "approximately the same" is within ±3 mm. As a result, as shown in Fig. 6, the face of the lower frame material 175 and the face of the lower frame 181 are visually recognized by the user as a continuous shape, making it possible to improve the design when the sliding door 107 is advanced or retreated from the door pocket 108 in the sliding door structure.

Moreover, it is more preferable to form the width of the lower frame material 175 to be the same as or slightly smaller (approximately 0 mm to -3 mm) than the width of the bottom frame 181. If the width of the lower frame material 175 is larger than the width of the bottom frame 181, the lower frame material 175 will protrude when the sliding door 107 is housed in the door pocket 108, making it easier to see from the outside. For this reason, in this embodiment, the width of the lower frame material 175 is formed to be approximately 1 mm smaller than the width of the bottom frame 181.

In the sliding door structure according to this embodiment, as in the first embodiment, the upper outer edge and the upper inner edge of the holding portion of the door pocket glass plate 182 by the lower frame 181, and the upper outer edge and the upper inner edge of the holding portion of the door glass plate 174 by the lower frame member 175 are unified in the vertical positions as shown in FIG. 7. As a result, when the user visually checks the sliding door structure when the sliding door 107 is stored in the door pocket 108 (open state of the sliding door 107), the upper outer edge and the upper inner edge of the lower frame 181 and the upper outer edge and the upper inner edge of the lower frame member 175 are recognized as being on the same plane. In other words, in this embodiment, it is possible to further improve the design of the sliding door structure.

In the sliding door structure according to this embodiment, the lower frame member 175 of the sliding door 107 is formed in a generally gate-shaped cross section with a recess that opens downward along the longitudinal direction, as shown in FIG. 7. More specifically, the lower frame member 175 is configured by providing a first frame member 175R on the right side as shown in FIG. 9, and assembling a second frame member 175L to the left side as shown in FIG. 9 relative to the first frame member 175R. As shown in FIG. 9, a sliding member 175s, which is a gate-shaped recess in cross section, is provided as a guided portion on the lower surface of the lower frame member 175 (between the first frame member 175R and the second frame member 175L) along the longitudinal direction of the lower surface. Hereinafter, the left side in FIG. 7 and FIG. 9 will be described as one side in the thickness direction of the sliding door 107 (lower frame member 175), and the right side will be described as the other side in the thickness direction of the sliding door 107 (lower frame member 175).

In this embodiment, one side (the left side in FIG. 9) of the inner surface of the sliding member 175s is formed as the first guided surface 175a, and the other side (the right side) of the inner surface of the sliding member 175s is formed as the second guided surface 175b. In this manner, a recess in the guided portion is formed by the inner peripheral surface of the sliding member 175s provided on the lower frame material 175. In this embodiment, as shown in FIG. 9, the sliding member 175s provided on the lower frame material 175 is provided biased toward the other side of the sliding door 107.

In addition, a seal member 178 that seals the gap between the bottom end of the sliding door 107 and the floor surface F is provided on the second frame member 175L of the lower frame member 175, adjacent to the sliding member 175s at one end of the sliding door 107 (the left end in FIG. 9). That is, the seal member 178 is disposed outside the recess formed in the lower frame member 175 so as to be parallel to the first guided surface 175a and the second guided surface 175b. A resin sliding member 178a is provided on the bottom of the seal member 178. The sliding member 178a is constantly in sliding contact with the floor surface F, thereby preventing sound and light leakage below the sliding door 107.

In addition, in the sliding door structure according to this embodiment, as shown in Figs. 6 and 8, a guide unit 183 is provided below the sliding door 107 on the floor surface F, more specifically near the door end side of the frame 180. Two guide rollers 187 are provided on the guide unit 183. The guide rollers 187 are one embodiment of the guide member according to the present invention.

As shown in Figures 9 and 10, the guide unit 183 is composed of a support plate 184, a fixed plate 185, guide rollers 187, a cover member 188, etc. The support plate 184 is fixed to the floor surface F by screw members. The fixed plate 185 is a plate-like member with roller support parts 186, 186 erected at both ends. The fixed plate 185 is fixed to the support plate 184 by a fixing screw inserted through the fixing hole 185a being screwed into the female threaded hole 184a of the support plate 184.

The guide roller 187 is rotatably attached to the roller support portion 186 via the shaft portion 187a whose axis is oriented vertically. That is, the guide roller 187 is fixed to the floor surface F via the support plate 184 and the fixed plate 185.

As shown in FIG. 9, the portion of the fixing plate 185 that is fixed to the floor surface F (support plate 184), i.e., the portion where the fixing hole 185a is opened, extends from the space below the sliding door 107 to the outside of the other end side in the thickness direction of the sliding door 107 (the right side in FIG. 9). The fixing plate 185 that extends from the space below the sliding door 107 is covered by a cover member 188. An opening 188a is formed in the cover member 188, and the fixing plate 185 and the support plate 184 are inserted into this opening 188a.

In the sliding door structure configured as described above, as shown in FIG. 9, a guide roller 187 is disposed inside the sliding member 175s (inside the recess formed in the lower frame member 175) of the lower frame member 175 of the sliding door 107. Then, when the sliding door 107 slides in the sliding door structure, the guide rollers 187 slide against the first guided surface 175a and the second guided surface 175b of the sliding member 175s. That is, the guide rollers 187, which are guide members in this embodiment, slide against the inner surface of the recess formed in the lower frame member 175. In this way, the sliding door 107 is guided by the guide rollers 187.

In the sliding door structure according to this embodiment, as described above, the sliding door 107 is guided by sliding the guide member provided on the floor surface F against the inner surface of the recess of the guided portion formed on the sliding door 107. Specifically, the sliding member 175s, which is the guided portion of the lower frame member 175, is guided by the guide rollers 187, 187 provided near the door pocket 108 on the floor surface F. This makes it possible to guide the sliding door 107 stably. In addition, by arranging the seal member 178 on the outside of the recess of the sliding member 175s, the sliding member 175s and the seal member 178 can be arranged adjacent to each other in the horizontal direction in the sliding door 107. This makes it possible to make the vertical dimension of the sliding door 107 more compact than in a configuration in which the guided surfaces 175a, 175b and the seal member 178 are arranged offset vertically.

As shown in Figures 11(a) to (c), the guide roller 187 can be installed after the sliding door 107 is assembled into the sliding door structure (after the sliding door 107 is suspended from the rail 106). Specifically, as shown in Figure 11(a), with the sliding door 107 suspended from the rail 106, a support plate 184 is inserted below the lower frame material 175 of the sliding door 107 and fixed near the door end side of the frame body 180 on the floor surface F.

Then, as shown in FIG. 11(a), the door end seal member 176a provided on the door end frame member 176 is slid upward to create an opening, and the guide roller 187 is inserted into the sliding member 175s of the lower frame member 175 together with the fixed plate 185. Furthermore, as shown in FIG. 11(b), the fixed plate 185 is fixed to the support plate 184, and the door end seal member 176a is slid downward in the door end frame member 176.

Then, as shown in FIG. 11(c), the fixing portion of the fixing plate 185 is covered with the cover member 188. This allows the guide unit 183 to be assembled to the sliding door structure according to this embodiment.

In this way, in the sliding door structure according to this embodiment, the fixed plate 185 constituting the guide unit 183 has a fixed portion with respect to the floor surface F that extends outward from the space below the sliding door 107. This allows the guide unit 183 (guide roller 187) to be assembled to the sliding door structure after the sliding door 107 has been assembled. In this way, this embodiment makes it possible to improve the ease of assembly of the guide roller 187.

In this embodiment, it is also possible to assemble the sliding door 107 to the sliding door structure after the guide unit 183 (guide roller 187) is installed on the floor surface F. In this case, the guide unit 183 may be entirely disposed below the sliding door 107. However, since the sliding door 107 needs to be placed at an angle inside the door pocket 108, a clearance is required for that.

In this embodiment, the guide unit 183 can be assembled to the sliding door structure after the sliding door 107 is assembled, which makes it possible to reduce the clearance between the door pocket 108 and the sliding door 107. In addition, the gap between the lower frame 181 and the lower frame material 175 can be reduced when the sliding door 107 is in the open state, which is preferable in terms of appearance. In addition, it becomes possible to efficiently store the sliding door 107 within the limited available dimensions.

1 Ground rail 2 Top rail
3 Door stop frame 4 Top frame
5 Cover member 6 Rail
7 Door 8 Door pocket
71 Roller 72 Suspension member
73 Upper frame material 74 Door glass panel
75 Lower frame material (sliding door lower frame)
75a: First guided surface 75b: Second guided surface
75c Outer upper end 75d Inner upper end
76 Door end frame material 77 Door end frame material
77a Door end frame end surface 78 Sealing member
79 Door end seal member 78a Sliding contact member
80 Frame body 80a Frame end surface
80b Closing material 81 Bottom frame (door pocket bottom frame)
81a First guide rail (guide member)
81b Second guide rail (guide member)
81c Outer upper end 81d Inner upper end
81s Glass retaining frame 82 Door pocket glass plate
83a: first sliding member 83b: second sliding member
91 Handle 92 Key
101 Ground rail 102 Top rail
103 Door stop frame 104 Upper frame
105 Cover member 106 Rail
107 Door 108 Door pocket
171 Roller 172 Suspension member
173 Upper frame material 174 Door glass panel
175 Lower frame material (sliding door lower frame)
175a: First guided surface; 175b: Second guided surface
175s Sliding member (guided portion)
176 Door end frame material
176a Door end seal member 177 Door end side frame member
177a Door end frame end surface 178 Sealing member
178a sliding contact member 179 door end seal member
180 Frame body 180a Frame end surface
180b Closing material 181 Bottom frame (door pocket bottom frame)
181s Glass retaining frame 182 Door pocket glass plate
183 Guide unit 184 Support plate
184a Female screw hole 185 Fixing plate
185a Fixing hole 186 Roller support portion
187 Guide roller (guide member)
187a Shaft portion 188 Cover member
188a Opening 191 Handle
192 Key C Ceiling
F Floor P Panel

Claims (7)

A sliding door structure including a rail provided on a ceiling, a sliding door suspended from the rail so as to be openable and closable, a baseboard member provided on a floor surface, and a door pocket for accommodating the sliding door in an open state,
The sliding door includes two door glass panels and a sliding door lower frame that supports the lower portions of the door glass panels.
The door pocket comprises a door pocket bottom frame supported by the baseboard member, and two door pocket glass panels arranged in a pair on either side of the track of the sliding door and having outer peripheries held by the door pocket bottom frame so as not to move relative to each other;
The sliding door bottom frame and the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension ,
The sliding door lower frame is formed so that the outer upper end surfaces of the two door glass panels and the upper end surface between the two door glass panels are flush with each other,
The door pocket lower frame has a sliding door structure in which the inner and outer upper end surfaces of the door pocket glass panel are formed on the same plane . The sliding door lower frame is provided with a guided portion formed along the longitudinal direction, and a seal member arranged parallel to the guided portion to close a gap between the lower end of the sliding door and a floor surface,
The sliding door structure according to claim 1 , further comprising a guide member provided below the sliding door, the guided portion sliding against the sliding door to guide the sliding door. The guided portion has a recess that opens downward and extends along the longitudinal direction.
The sealing member is provided on one end of the sliding door in the thickness direction outside the recess,
As the guide member, a guide roller is provided which is inserted into the inside of the recess,
The sliding door structure according to claim 2 , wherein the guide roller guides the sliding door by sliding against an inner surface of the guided portion. A sliding door structure including a rail provided on a ceiling, a sliding door suspended from the rail so as to be openable and closable, and a door pocket for accommodating the sliding door in an open state,
The sliding door includes one or more door glass panels and a sliding door lower frame that supports a lower portion of the door glass panels.
The door pocket includes one or more door pocket glass plates and a door pocket lower frame that supports a lower portion of the door pocket glass plate,
The sliding door bottom frame and the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension,
The sliding door lower frame is provided with a guided portion formed along the longitudinal direction, and a seal member arranged parallel to the guided portion to close a gap between the lower end of the sliding door and a floor surface,
A guide member that guides the sliding door by sliding against the guided portion is provided below the sliding door,
The guided portion has a recess that opens downward and extends along the longitudinal direction.
The seal member is provided inside the recess,
As the guide member, a first guide rail located on one side of the sliding door and a second guide rail located on the other side of the sliding door are provided in parallel to each other along the longitudinal direction of the door pocket,
When the sliding door is in an open state, the seal member is disposed between the first and second guide rails,
A sliding door structure, wherein the first guide rail and the second guide rail slide against the guided portion to guide the sliding door. the guided portion includes a first guided surface that constitutes one of the inner surfaces of the recessed portion, and a second guided surface that faces the first guided surface and constitutes the other inner surface of the recessed portion,
The first guide rail and the second guide rail are inserted between the first guided surface and the second guided surface,
The sliding door structure according to claim 4 , wherein the first guide rail slides against the first guided surface, and the second guide rail slides against the second guided surface. A sliding door structure including a rail provided on a ceiling, a sliding door suspended from the rail so as to be openable and closable, and a door pocket for accommodating the sliding door in an open state,
The sliding door includes one or more door glass panels and a sliding door lower frame that supports a lower portion of the door glass panels.
The door pocket includes one or more door pocket glass plates and a door pocket lower frame that supports a lower portion of the door pocket glass plate,
The sliding door bottom frame and the door pocket bottom frame are formed at the same position in the vertical direction and with approximately the same width dimension,
The sliding door lower frame is provided with a guided portion formed along the longitudinal direction, and a seal member arranged parallel to the guided portion to close a gap between the lower end of the sliding door and a floor surface,
A guide member that guides the sliding door by sliding against the guided portion is provided below the sliding door,
The guided portion has a recess that opens downward and extends along the longitudinal direction.
The sealing member is provided on one end of the sliding door in the thickness direction outside the recess,
As the guide member, a guide roller is provided which is inserted into the inside of the recess,
The guide roller slides against the inner surface of the guided portion, thereby guiding the sliding door,
The guide roller is fixed to the floor surface via a fixed plate,
A sliding door structure, wherein the fixed portion of the fixing plate which is fixed to the floor surface extends from the space below the sliding door to the outside on the other end side in the thickness direction of the sliding door. 7. The sliding door structure according to claim 2, wherein a clearance between an inner surface of the door pocket bottom frame and an outer surface of the sliding door bottom frame opposite the inner surface is configured to be larger than a clearance between the guided portion and the guide member in a direction perpendicular to the trajectory of the sliding door.

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