JP6858238B2 - Sliding door device and stairs device - Google Patents

Description

The present invention relates to a sliding door device and a staircase device in which a pull tab is provided on the sliding door main body.

Conventionally, a living staircase structure in which a staircase is directly connected to a living room has been proposed (see Patent Document 1).
The wall surface facing the living room is provided with an opening (hereinafter referred to as a communication opening) that connects the living room and the space where the stairs are arranged.
In the case of the living staircase structure described in Patent Document 1, the roll screen opens and closes the communication opening on the living room side.

On the other hand, there has been proposed a sliding door device in which a hanging type sliding door main body opens and closes an opening provided on a wall surface (see Patent Document 2).
The user opens and closes the sliding door body by putting his / her hand on the pull tab provided on the sliding door body.

JP-A-2010-71051 Japanese Patent No. 5177895

When the sliding door device as described in Patent Document 2 is applied to the living staircase structure as described in Patent Document 1, the sliding door main body opens and closes the communication opening on the living side.

In this case, when the sliding door main body is fully opened, if the remaining allowance (that is, the length in the opening / closing direction of the portion where the door tip of the fully opened sliding door main body protrudes toward the opening side) is "0", the stairs The user on the side cannot see the puller or put his finger on the puller. This is because the pull tab is covered by the wall surface from the stairs side, and the separation distance between the sliding door body and the wall surface is only about 20 mm in the past. As a result, the convenience of opening and closing is impaired. Therefore, conventionally, a leaving allowance of 70 mm or more is set.

However, the longer the leftover allowance, the shorter the effective opening width of the communication opening, so it is desired to shorten the leftover allowance.

The present invention has been made in view of such circumstances, and a main object thereof is to provide a sliding door device and a staircase device capable of achieving both convenience at the time of opening and closing and shortening of a leftover allowance.

The sliding door device according to the present invention can move laterally along the wall surface facing the wall surface, and faces the wall surface of the sliding door body and a hanging type sliding door body that opens and closes an opening adjacent to the wall surface. In a sliding door device including a first puller provided on one side of the sliding door body and a second puller provided on the other side of the sliding door body on the opposite side of the one side, the wall surface and the one side. A space into which a hand can be inserted is provided between the spaces, and the space is surrounded by the wall surface, the one surface, and a parting material attached to the wall surface, and the vertical length of the first puller is the above. The upper end position of the first puller is higher than the upper end position of the second puller, which is longer than the vertical length of the second puller, or the lower end position of the first puller is the lower end position of the second puller. it shall be the said lower position.
The sliding door device according to the present invention can move laterally along the wall surface facing the wall surface, and faces the wall surface of the sliding door body and a hanging type sliding door body that opens and closes an opening adjacent to the wall surface. In a sliding door device including a first puller provided on one surface of the sliding door body and a second puller provided on the other surface on the opposite side of the one surface of the sliding door main body, the wall surface and the one surface are A space into which a hand can be inserted is provided between the spaces, and the space is surrounded by the wall surface, the one surface, and the parting material attached to the wall surface. It is characterized in that it is longer than the distance from the door end of the sliding door body to the door end side end of the first puller.
The sliding door device according to the present invention can move laterally along the wall surface facing the wall surface, and faces the wall surface of the sliding door body and a hanging type sliding door body that opens and closes an opening adjacent to the wall surface. In a sliding door device including a first puller provided on one surface of the sliding door body and a second puller provided on the other surface on the opposite side of the one surface of the sliding door main body, the wall surface and the one surface are A space into which a hand can be inserted is provided between the spaces, and the space is surrounded by the wall surface, the one surface, and the parting material attached to the wall surface. It is characterized in that it is shorter than the distance from the door tip of the sliding door body to the door tail side end of the first puller.

The sliding door device according to the present invention is characterized in that the separation distance between the wall surface and the one surface in the facing direction is 30 mm or more.

The sliding door device according to the present invention is characterized in that the first puller and the second puller are digging pullers, respectively.

In the sliding door device according to the present invention, the vertical length of the first puller is longer than the vertical length of the second puller, and the upper end position of the first puller is higher than the upper end position of the second puller. The lower end position of the first puller is lower than the lower end position of the second puller.

The sliding door device according to the present invention is characterized in that the first puller is arranged closer to the door than the second puller.

In the sliding door device according to the present invention, the parting material is a bar material that is long in the vertical direction and is attached to the wall surface at an appropriate length from the peripheral edge of the opening on the wall surface, and the opening by the sliding door body. It is characterized by providing a packing that covers the gap between the bar member and the sliding door main body when the rod member is closed.

The sliding door device according to the present invention is characterized in that the leftover margin of the sliding door main body is longer than the distance from the door end of the sliding door main body to the door end side end of the first puller.

The sliding door device according to the present invention is characterized in that the leftover margin of the sliding door main body is shorter than the distance from the door tip of the sliding door main body to the door tail side end of the first puller.

The staircase device according to the present invention is characterized by including a sliding door device according to the present invention and a staircase that connects upstairs and downstairs and is raised and lowered through the opening.

The staircase device according to the present invention includes a sliding door device according to the present invention and a staircase that connects upstairs and downstairs and is raised and lowered through the opening, and the sliding door device is arranged on the downstairs side. The upper end position of the first puller is higher than the upper end position of the second puller.

The staircase device according to the present invention includes a sliding door device according to the present invention and a staircase that connects upstairs and downstairs and is raised and lowered through the opening, and the sliding door device is arranged on the upper floor side. The lower end position of the first puller is lower than the lower end position of the second puller.

In the present invention, a space into which a hand can be inserted (hereinafter referred to as an insertion space) is provided between the wall surface adjacent to the opening and one surface on the wall surface side of the sliding door main body. Therefore, the user can easily insert his / her hand into the insertion space and put his / her finger on the first puller. In addition, the user can easily see the first puller through the insertion space. As a result, it is not necessary to set a long leftover allowance.
The second puller does not face the wall. Therefore, the user can easily put his finger on the second puller and easily visually recognize the second puller.
Such a sliding door device is particularly useful when constructing a staircase device.

In the present invention, the insertion space is provided by increasing the separation distance between the wall surface and one surface of the sliding door body by 10 mm or more as compared with the conventional case.

In the present invention, the first puller (and the second puller) is the digging puller. That is, a concave pull tab is provided on one surface (and the other surface) of the sliding door main body.
Therefore, it is possible to suppress the inconvenience that the first puller narrows the insertion space as compared with the case where the first puller is convex. Further, as compared with the case where the second puller is convex, it is possible to suppress the inconvenience that the second puller narrows the space (for example, the living room) facing the other surface of the sliding door main body.

In the present invention, the first puller is longer on the upper side than the second puller. Such a configuration is suitable when the sliding door body is on the downstairs side. This is because the user on the stairs side can easily reach the first puller from a position higher than the floor surface downstairs.
Alternatively, the first puller is longer downward than the second puller. Such a configuration is suitable when the sliding door body is on the upper floor. This is because the user on the stairs side can easily reach the first puller from a position lower than the floor surface on the upper floor.

In the present invention, the first puller is arranged closer to the door than the second puller. Therefore, the leftover allowance can be shortened as compared with the case where the lateral arrangement position of the first puller is the same as that of the second puller.

In the present invention, the bar is attached to the wall surface away from the peripheral edge of the opening. Therefore, the lateral position of the bar can be easily adjusted when the bar is attached.
The packing that covers the gap between the bar and the sliding door body can suppress the flow of unnecessary air through the opening.

In the present invention, even if the sliding door main body is fully opened, at least a part of the first puller can be reliably visually recognized.

In the present invention, even if the sliding door main body is fully opened, at least a part of the first puller can be reliably visually recognized.
Moreover, the leftover allowance is not too long. This is because when the sliding door main body is fully opened, at least the door tail side of the sliding door main body is covered with a wall surface.

In the case of the sliding door device and the staircase device of the present invention, it is easy for the user to put a finger on each of the first puller and the second puller without setting a long leftover allowance, and the first puller and the second puller respectively. Is easy to see. Therefore, it is possible to achieve both convenience at the time of opening and closing and shortening of the leftover allowance.

It is a top view which shows the structure (when closed) of the staircase apparatus which concerns on Embodiment 1 of this invention. It is a top view which shows the structure (when opened) of a staircase apparatus. It is sectional drawing which shows the structure of the sliding door device provided in the staircase device. It is sectional drawing which shows the structure of the door end side (when closed) of a sliding door device. It is sectional drawing which shows the structure of the door end side (when opened) of a sliding door device. It is sectional drawing which shows the structure of the door tail side of a sliding door device. It is a front view which shows the structure of the sliding door main body which a sliding door device has. It is a rear view which shows the structure of the sliding door main body. It is a rear view which shows the structure of the sliding door main body which the sliding door device provided in the staircase device which concerns on Embodiment 2 of this invention has. It is a top view which shows the structure of the sliding door device provided in the staircase device which concerns on Embodiment 3 of this invention. It is sectional drawing which shows the structure of the sliding door device. It is sectional drawing which shows the structure of the door end side of the sliding door device provided in the staircase device which concerns on Embodiment 4 of this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments thereof. In the following description, the up and down, front and back, and left and right indicated by arrows in the figure are used.

Embodiment 1.
1 and 2 are plan views illustrating the configuration of the staircase device 1 according to the first embodiment of the present invention.
FIG. 3 is a cross-sectional view illustrating the configuration of the sliding door device 2 included in the staircase device 1.
4 and 5 are cross-sectional views illustrating the configuration of the sliding door device 2 on the door end side.
FIG. 6 is a cross-sectional view illustrating the configuration of the sliding door device 2 on the door end side.
7 and 8 are a front view and a rear view illustrating the configuration of the sliding door main body 23 included in the sliding door device 2.

The staircase device 1 includes a staircase 11 and a sliding door device 2.
The sliding door device 2 includes a guide rail 211, two traveling bodies 22, 22, a sliding door main body 23, a puller 24 (second puller), a puller 251 (first puller), bar members 261,27, and packing. 28, 29 are provided. Insertion spaces 31 and 32 (spaces in which a hand can be inserted) are formed in the sliding door device 2.

The staircase device 1 is provided in the building. The columns A1, A2, the wall plates B1, B2, B3, B4, the ceiling plate C1, and the floor plate D1 are a part of the skeleton constituting the building. The skeleton is formed with a communication opening E1 (opening) surrounded by wall plates B1, B2, B3, B4, a ceiling plate C1, and a floor plate D1.
1, FIG. 4, and FIG. 6 show the time when the communication opening E1 is closed by the sliding door main body 23. 4 and 6 are also enlarged views of the vicinity of the bar members 261, 27 in FIG. 1.
2 and 5 show the opening of the communication opening E1 by the sliding door main body 23. FIG. 5 is also an enlarged view of the vicinity of the bar 27 in FIG.

First, each part of the building provided with the staircase device 1 will be described.
The pillars A1 and A2 are separated and juxtaposed in the left-right direction. Pillars A1 and A2 each form a square column whose length direction is vertical.

The wall plate B1 has a rectangular flat plate shape extending in the vertical and horizontal directions, and is attached to the pillar A1. The right side of the wall plate B1 covers the front surface of the pillar A1.
The wall plate B2 has a rectangular flat plate shape extending in the vertical and horizontal directions, and is attached to the pillar A2. The left side of the wall plate B2 covers the front surface of the pillar A2.
The wall plates B1 and B2 are separated and juxtaposed in the left-right direction. The right end surface of the wall plate B1 and the left end surface of the wall plate B2 are arranged to face each other in the left-right direction.
Hereinafter, the front surface of the wall plate B1 (and the wall plate B2) is referred to as a wall surface Ba (and a wall surface Bb). In FIGS. 1 and 2, a virtual line (hereinafter, referred to as a wall surface line) connecting the wall surface Ba and the wall surface Bb is shown by a chain double-dashed line.

The wall plate B3 has a rectangular flat plate shape extending in the vertical and front-back directions, and is attached to the pillar A1. The front side of the wall plate B3 covers the right side of the pillar A1. The right surface of the wall plate B3 is flush with the right end surface of the wall plate B1.
The wall plate B4 has a rectangular flat plate shape extending in the vertical and front-back directions, and is attached to the pillar A2. The front side portion of the wall plate B4 covers the left surface of the pillar A2. The left surface of the wall plate B3 is flush with the left end surface of the wall plate B2.
The wall plates B3 and B4 are separated and juxtaposed in the left-right direction. The right surface of the wall plate B1 and the left surface of the wall plate B2 are arranged to face each other in the left-right direction.

The ceiling plate C1 (see FIG. 3) has a flat plate shape extending in the front-rear and left-right directions, and intersects the upper side portions of the wall plates B1, B2, B3, and B4, respectively.
The floor plate D1 (see FIG. 3) has a flat plate shape extending in the front-rear and left-right directions, and intersects the lower side portions of the wall plates B1, B2, B3, and B4, respectively.
The ceiling plate C1 and the floor plate D1 are arranged at least on the front side of the wall plates B1 and B2 and between the wall plates B3 and B4.

The communication opening E1 has a rectangular shape surrounded by ceiling plates C1, floor plates D1, wall plates B1 and B3, and wall plates B2 and B4 on the top, bottom, left and right. The upper inner surface of the inner peripheral surface of the communication opening E1 is composed of the lower surface of the ceiling plate C1, the lower inner surface is composed of the upper surface (that is, the floor surface) of the floor plate D1, and the left inner surface is the right end surface of the wall plate B1 and the wall plate B3. It is composed of a right surface, and the right inner surface is composed of a left end surface of the wall plate B2 and a left surface of the wall plate B4.
The wall surface Ba is adjacent to the left side of the communication opening E1, and the wall surface Bb is adjacent to the right side of the communication opening E1.
The front side of the wall surfaces Ba and Bb is a living space F (for example, a living room on the first floor, see FIG. 3).
The front side of the wall surfaces Ba and Bb is not limited to the living space F, and may be a kitchen or a corridor.

Next, the staircase 11 of the staircase device 1 will be described.
The stairs 11 connect the living space F downstairs with a space upstairs (for example, a corridor on the second floor or a children's room) that is not shown. The user goes up and down the stairs 11 through the communication opening E1.
The staircase 11 has a plurality of tread plates 111, 111, ... (One each shown in FIGS. 1 and 2) and two side plates 112, 112.
Each tread 111 has a flat plate shape extending from front to back and left and right. The front end of the bottom tread 111 is located about 300 mm behind the wall surface line.
Each side plate 112 has a flat plate shape extending in the vertical and front-back directions. The side plates 112 and 112 face each other in the left-right direction. The side plates 112, 112 support both ends of the tread plates 111, 111, ... In the left-right direction.

In the present embodiment, a part of the stairs 11 (at least the front end portion of the lowermost tread plate 111 and the front end portion of each of the side plates 112 and 112) is arranged inside the communication opening E1 and is more than the communication opening E1. The rest of the stairs 11 is arranged in a space (not shown) on the rear side.
The arrangement of the stairs 11 is not limited to the arrangement of the present embodiment. For example, the front ends of the side plates 112 and 112 may project into the living space F (that is, in front of the wall surface line) through the communication opening E1, and the stairs 11 are arranged only in the space behind the communication opening E1. You may be.
Further, the stairs 11 may be any of a straight staircase, a folded staircase, a folded staircase, and the like, and may be an open staircase or a closed staircase.

Next, the sliding door device 2 of the staircase device 1 will be described.
The sliding door device 2 is arranged on the front side of the downstairs side of the stairs 11.
The guide rail 211 (see FIG. 3) of the sliding door device 2 is a so-called ceiling-embedded fitting rail, which is embedded in the ceiling plate C1. The length direction of the guide rail 211 is the left-right direction. The left end portion (and right end portion) of the guide rail 211 is arranged on the front side of the wall surface Ba (and the wall surface Bb), and the left-right central portion of the guide rail 211 is arranged on the front side of the communication opening E1.
The traveling bodies 22 and 22 (only one is shown in FIG. 3) are juxtaposed with a distance in the left-right direction. Each traveling body 22 has a traveling portion 221 that is guided by the guide rail 211 and travels in the left-right direction, and a hanging portion 222 that projects downward from the traveling portion 221.

The sliding door body 23 has a rectangular flat plate shape extending in the vertical and horizontal directions. The sliding door main body 23 has a front surface 23a and a rear surface 23b. The sliding door main body 23 is arranged in the living space F.
The upper side portion of the sliding door main body 23 is attached to the hanging portions 222 and 222 of the traveling bodies 22 and 22. Therefore, the sliding door main body 23 moves in the left-right direction as the traveling bodies 22 and 22 travel.
That is, the sliding door main body 23 faces the wall surfaces Ba and Bb in the front-rear direction and can move in the lateral direction along the wall surfaces Ba and Bb. The rear surface 23b is one surface of the sliding door main body 23 facing the wall surfaces Ba and Bb, and the front surface 23a is the other surface on the opposite side of the rear surface 23b.

The distance between the wall surfaces Ba and Bb and the rear surface 23b in the front-rear direction (hereinafter referred to as clearance G1; see FIGS. 4 and 5) is at least 30 mm, and is 39 mm in the present embodiment. Since the clearance related to the conventional sliding door device is about 20 mm, the clearance G1 is 1.5 times or more longer than the conventional one.

The sliding door main body 23 is a hanging type suspended from the guide rail 211 via the traveling bodies 22 and 22, and opens and closes the communication opening E1 in the left-right direction. When the communication opening E1 is opened, the sliding door main body 23 moves to the right side, and when the communication opening E1 is closed, the sliding door main body 23 moves to the left side. That is, the door end side / door tail side of the sliding door main body 23 is the left side / right side.

The lower side of the sliding door body 23 is separated from the floor plate D1 by 10 mm. Further, a known light leakage prevention mechanism (not shown) is arranged on the lower side of the sliding door main body 23.
An engaging groove (not shown) is provided on the lower end surface of the sliding door body 23. This engaging groove opens downward, and the length direction is the left-right direction. An engaging protrusion (not shown) is projected upward on the lower side of the sliding door main body 23 on the floor plate D1, and the tip of the engaging protrusion is inserted into the engaging groove. The vibration of the sliding door body 23 in the front-rear direction is suppressed by the engagement between the engaging protrusion and the engaging groove.

When the communication opening E1 is completely closed, the left side portion of the sliding door main body 23 is arranged in front of the wall surface Ba.
When the communication opening E1 is completely opened, the left side portion of the sliding door main body 23 projects from the front of the wall surface Bb toward the communication opening E1. That is, the sliding door main body 23 is provided with a remaining allowance G2 (see FIG. 5). The leftover allowance G2 (distance between the left surface of the wall plate B4 and the left end surface of the sliding door main body 23 in the left-right direction when the communication opening E1 is completely opened) in the present embodiment is 20 mm. Since the remaining margin of the conventional sliding door device is 70 mm or more, the remaining margin G2 is reduced by 50 mm or more as compared with the conventional one.

The pull tab 24 (see FIG. 7) is a digging pull tab provided on the front surface 23a of the sliding door main body 23.
The vertical length of the pull tab 24 in the present embodiment is 140 mm, and the horizontal width is 40 mm. The upper end (and lower end) of the pull tab 24 is located at a height separated from the lower side of the sliding door main body 23 by 1000 mm (and 860 mm). The left end portion of the pull tab 24 is separated from the left side portion of the sliding door main body 23 by 31 mm.
The dimensions and arrangement of the pull tab 24 and the arrangement on the front surface 23a are not much different from the dimensions and arrangement of a general pull tab. That is, the pull tab 24 is at a height that can be easily reached by the user standing on the floor plate D1.

The pull tab 251 is a digging pull tab provided on the rear surface 23b of the sliding door main body 23.
The vertical length of the pull tab 251 in the present embodiment is 838 mm, and the horizontal width is 32 mm. The upper end (and lower end) of the pull tab 251 is located at a height separated from the lower side of the sliding door body 23 by 1674 mm (and 836 mm). The left end portion of the pull tab 251 is separated from the left side portion of the sliding door main body 23 by 7 mm.
That is, the vertical length of the puller 251 is longer than that of the puller 24, the width of the puller 251 is shorter than that of the puller 24, and the upper end position of the puller 251 is higher than that of the puller 24. Further, the pull tab 251 is arranged on the door end side of the pull tab 24. The remaining allowance G2 of the sliding door body 23 is longer than the distance G3 from the door end of the sliding door body 23 to the door end side end of the pull tab 251 and from the door end of the sliding door body 23 to the door tail side end of the pull tab 251. The distance to the part is shorter than up to G4 (see FIG. 5).

When the communication opening E1 is completely closed, the left part of the puller 251 and the central part in the left-right direction are arranged in front of the wall surface Ba, but the right part of the puller 251 (from the right end of the puller 251 in the left-right direction). The length (within a range of about 10 mm) protrudes toward the communication opening E1.
When the communication opening E1 is completely opened, the right half of the pull tab 251 is arranged in front of the wall surface Ba, but the left half of the pull tab 251 (about 15 mm in length in the left-right direction from the left end of the pull tab 251). Range) projects toward the communication opening E1 side.

The bar member 261 has a parting member 26a and a door stop member 26b (see FIG. 4).
The parting material 26a has a long square columnar shape in the vertical direction. The length of the parting material 26a in the front-rear direction is 30 mm, which is shorter than the clearance G1. The sliding door main body 23 moves in the left-right direction on the front side of the parting member 26a.
The rear surface of the parting material 26a and the wall surface Ba are in contact with each other. The parting member 26a is attached to the wall surface Ba at a distance of 12.5 mm to the left from the peripheral edge portion (right side portion of the wall surface Ba) of the communication opening E1.

The door stop member 26b is a hollow member and is attached to the left side portion on the front surface of the parting member 26a. The sum of the lengths of the parting material 26a and the door stop material 26b in the front-rear direction is 49 mm, which is longer than the clearance G1. The sliding door main body 23 is brought into contact with and separated from the right surface of the door stop member 26b in the left-right direction.

The bar 27 has a long square columnar shape in the vertical direction and functions as a parting material. The vertical length and the cross-sectional dimension of the bar 27 of the bar 27 are about the same as those of the parting member 26a. The sliding door main body 23 moves in the left-right direction on the front side of the bar member 27.
The rear surface of the bar 27 and the wall surface Bb are in contact with each other. The bar 27 is attached to the wall surface Bb at a distance of 44 mm to the right from the peripheral end portion (left side portion of the wall surface Bb) of the communication opening E1.

The packing 28 (see FIG. 4) is an elastic member. The packing 28 is supported by the door stop material 26b, and has a plate shape protruding diagonally to the right rear side from the right front end portion of the door stop material 26b.
When the communication opening E1 is completely closed, the packing 28 is sandwiched between the door stop member 26b and the left end surface of the sliding door main body 23. As a result, the packing 28 covers the gap between the bar 261 and the sliding door main body 23.

The packing 29 (see FIG. 6) moves in the left-right direction as the sliding door body 23 moves in the left-right direction. The packing 29 has a packing main body 291 and a main body support portion 292.
The packing body 291 is an elastic member and has a flat plate shape extending in the vertical and front-back directions.
The main body support portion 292 is attached to the right side portion on the rear surface of the sliding door main body 23. The main body support portion 292 supports the packing main body 291 in a posture in which the packing main body 291 projects rearward from the right side portion on the rear surface of the sliding door main body 23.

When the communication opening E1 is completely closed, the left surface of the packing body 291 comes into contact with the right surface of the bar 27. As a result, the packing 29 covers the gap between the sliding door body 23 and the bar 27.
The sliding door device 2 may be provided with a packing attached to the sliding door main body 23 instead of the packing 28, or may be provided with a packing attached to the bar 27 instead of the packing 29.

When the communication opening E1 is completely closed, a space surrounded by the rear surface 23b of the sliding door main body 23, the right surface of the parting member 26a, and the wall surface Ba is formed. This space functions as an insertion space 31 (see FIGS. 1 and 4). The left portion and the central portion in the left-right direction of the pull tab 251 are arranged in the insertion space 31.
When the communication opening E1 is completely opened, a space surrounded by the rear surface of the sliding door main body 23, the left surface of the bar 27, and the wall surface Bb is formed. This space functions as an insertion space 32 (see FIGS. 2 and 5). The right half of the pull tab 251 is arranged in the insertion space 32.
Both the insertion spaces 31 and 32 have a size in which the user's hand can be inserted.

In the case of the staircase device 1 as described above, since the remaining allowance G2 of the sliding door main body 23 is shorter than the conventional one, the effective opening width G5 (see FIG. 2) is longer than the conventional one.
The user in the living space F puts his / her finger on the pull tab 24 to move the sliding door main body 23 laterally. For the user in the living space F, the pull tab 24 is easy to see and put a finger on.
On the other hand, the user who goes up and down the stairs 11 puts his finger on the pull tab 251 to move the sliding door main body 23 laterally. Hereinafter, a user who goes up and down the stairs 11 will be described.

When the communication opening E1 is completely closed, the user inserts a hand into the insertion space 31 and puts a finger on the pull tab 251 to move the sliding door main body 23 to the right. Further, when the communication opening E1 is completely closed, the user puts a finger on the pull tab 251 to move the sliding door main body 23 to the left. At this time, the user's hand may be inserted into the insertion space 31 as the sliding door main body 23 moves. However, since the insertion space 31 has a sufficient size (particularly, the clearance G1 is longer than the conventional one), the finger inserted into the pull tab 251 is sandwiched between the sliding door main body 23 and the wall surface Ba. There is no risk of it going away.

When the communication opening E1 is completely opened, the user inserts a hand into the insertion space 32, puts a finger on the pull tab 251 and moves the sliding door main body 23 to the left. Further, when the communication opening E1 is completely opened, the user puts a finger on the pull tab 251 to move the sliding door main body 23 to the right. At this time, the user's hand may be inserted into the insertion space 32 as the sliding door main body 23 moves. However, since the insertion space 32 has a sufficient size (particularly, the clearance G1 is longer than the conventional one), the finger inserted into the pull tab 251 is sandwiched between the sliding door main body 23 and the wall surface Bb. There is no risk of it going away.

The user can easily see the pull tab 251 when the communication opening E1 is completely closed.
This is because the right portion of the pull tab 251 projects toward the communication opening E1 side, so that the right portion of the pull tab 251 can be reliably visually recognized without being hindered by the wall plate B3. Further, since the left portion and the central portion in the left-right direction of the pull tab 251 are sufficiently separated from the wall surface Ba, the left portion and the central portion in the left-right direction of the pull tab 251 can be visually recognized through the insertion space 31. ..

Further, even when the communication opening E1 is completely opened, the user can easily visually recognize the pull tab 251.
This is because the left half of the pull tab 251 protrudes toward the communication opening E1 side, so that the left half of the pull tab 251 can be reliably visually recognized without being hindered by the wall plate B4. Further, since the right half of the pull tab 251 is sufficiently separated from the wall surface Bb, the right half of the pull tab 251 can be visually recognized through the insertion space 32.

That is, the presence of the insertion spaces 31 and 32 makes it easy for the puller 251 to be visually recognized and for the finger to be hung.
The sliding door device 2, and thus the staircase device 1, are highly convenient when opening and closing because the pullers 24 and 251 can be easily visually recognized and the pullers 24 and 251 can be easily hung with a finger.
Furthermore, since the pull tab 251 is longer on the upper side than the pull tab 24, not only when the user is located on the floor plate D1, but also at the bottom of the stairs 11, or the 2nd to 4th steps from the bottom, etc. The pull tab 251 is easily accessible, even if it is located in either position. If the vertical length of the pull tab 251 is about the same as that of the pull tab 24, the user is positioned on the floor plate D1 or at the bottom of the stairs 11 in order to hook the finger on the pull tab 251. You need to be. That is, the pull tab 251 improves convenience when opening and closing the communication opening E1 from the staircase 11 side.

By the way, although the pull tabs 24 and 251 are both concave, they may be convex respectively. However, since the convex puller 24 protrudes into the living space F, the living space F is narrowed as compared with the case of the concave shape. Further, since the convex puller 251 protrudes into the insertion spaces 31 and 32, the insertion spaces 31 and 32 are narrower than in the case of the concave shape. As a result, it may be more difficult to put a finger on the pull tab 251 than in the case of a concave shape.

The pull tab 251 of the present embodiment is arranged on the door end side of the pull tab 24, but the arrangement position in the left-right direction may be the same as that of the pull tab 24. However, when the puller 251 is arranged closer to the door than the puller 24, the leftover allowance G2 should be shorter than when the puller 251 and the puller 24 are arranged in the same horizontal direction. Can be done.

The rod members 261, 27 are attached to the wall surfaces Ba and Bb. On the other hand, the general parting material provided in the conventional sliding door device has an L-shaped cross section, and is a corner portion between the wall surface Ba and the right end surface of the wall plate B1 and the right surface of the wall plate B3, or the wall surface Bb and the wall plate B2. It is attached to the corner between the left end surface of the wall plate B4 and the left surface of the wall plate B4. Therefore, each of the rods 261,27 can easily adjust the position of each of the rods 261,27 in the left-right direction when the rods 261,27 are attached, as compared with the conventional parting material.

The packings 28 and 29 suppress the unnecessary passage of air between the living space F and the space on the staircase 11 side through the communication opening E1 when the communication opening E1 is completely closed.
As a result, the living space F is compared with either the case where the sliding door device 2 is not provided or the case where the sliding door device 2 is provided with a conventional sliding door device which is not provided with the packings 28 and 29. However, the cooling and heating efficiency can be improved.

In the case of the staircase device 1, the sliding door main body 23 projects toward the living space F side from the sliding door main body provided in the general sliding door device. Therefore, even if the stairs 11 have a configuration in which the front ends of the side plates 112 and 112 slightly project into the living space F, there is no possibility that the sliding door main body 23 and the front ends of the side plates 112 and 112 interfere with each other.

The sliding door device 2 is not limited to the configuration provided in the staircase device 1.
The sliding door main body 23 is not limited to the configuration that opens to the right side, and may be configured to open to the left side.
Although the sliding door main body 23 is a single sliding door, the sliding door device 2 may include both sliding doors, a sliding door, or the like instead of the sliding door main body 23.

The front surface 23a of the sliding door main body 23 may be provided with a pull tab similar to the pull tab 251.
However, a puller 24 is more suitable for the front surface 23a than a puller similar to the puller 251. This is because it is unlikely that the upper side of the puller similar to the puller 251 will be utilized in the living space F. Further, in the living space F, there is a possibility that a sliding door or a hinged door other than the sliding door main body 23 is arranged. Since the dimensions and arrangement of the pull tab 24 and the arrangement on the front surface 23a are not much different from the dimensions and arrangement of general pull tabs, a sense of design unity can be obtained between the sliding door main body 23 and the sliding door or hinged door other than the sliding door main body 23. Be done.

In the present embodiment, the wall plates B1 and B2 are separate bodies. However, the communication opening E1 may be formed in one wall plate. In this case, the guide rail 211 is not limited to the configuration provided on the ceiling plate C1. For example, a rail support member that supports the guide rail 211 while blindfolding the guide rail 211 from the living space F side may be attached to the upper side portion of the communication opening E1 on the front surface of the wall plate.
The sliding door device 2 may include a guide rail attached to the lower surface of the ceiling plate C1 instead of the guide rail 211.

Embodiment 2.
FIG. 9 is a rear view illustrating the configuration of the sliding door main body 23 included in the sliding door device 2 included in the staircase device 1 according to the second embodiment of the present invention. FIG. 9 corresponds to FIG. 8 of the first embodiment.
The staircase device 1 of the present embodiment has substantially the same configuration as the staircase device 1 of the first embodiment. Hereinafter, the differences from the first embodiment will be described, and other parts corresponding to the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The staircase 11 of the present embodiment connects the living space F on the upper floor (for example, the living room on the second floor) and the space on the lower floor (for example, the corridor on the first floor) (not shown).
In the first embodiment, the sliding door device 2 is arranged on the front side of the lower floor of the stairs 11, but in the present embodiment, the sliding door device 2 is arranged on the front side of the upper floor of the stairs 11.
The sliding door device 2 includes a pull tab 252 (first pull tab) instead of the pull tab 251 of the first embodiment.

The pull tab 252 is a digging pull tab similar to the pull tab 251 and is provided on the rear surface 23b of the sliding door main body 23. However, the pull tabs 251 and 252 are arranged in different positions in the vertical direction on the sliding door main body 23.
The upper end (and lower end) of the pull tab 252 is located at a height separated from the lower side of the sliding door body 23 by 1274 mm (and 436 mm).
That is, the vertical length of the pull tab 252 is longer than that of the pull tab 24, and the lower end position of the pull tab 252 is lower than that of the pull tab 24.

The staircase device 1 as described above has the same effect as that of the staircase device 1 of the first embodiment.
However, the pull tab 252 is longer on the lower side than the pull tab 24. Therefore, not only when the user is located on the floor plate D1, but also when the user is located at the top of the stairs 11 or at any of the 2nd to 4th steps from the top, the puller 252 can easily be used. Reachable.

Embodiment 3.
10 and 11 are a plan view and a cross-sectional view illustrating the configuration of the sliding door device 2 included in the staircase device 1 according to the third embodiment of the present invention. 10 and 11 correspond to FIGS. 1 and 3 of the first embodiment.
The staircase device 1 of the present embodiment has substantially the same configuration as the staircase device 1 of the first embodiment. Hereinafter, the differences from the first embodiment will be described, and other parts corresponding to the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

Pillars A2, A3, wall plates B2, B4, B5, ceiling plate C2, and floor plate D2 are a part of a skeleton constituting a building including a staircase device 1. The skeleton is formed with a communication opening E2 (opening) surrounded by wall plates B2, B4, B5, a ceiling plate C2, and a floor plate D2.

The sliding door device 2 includes a guide rail 212 and a bar 262 instead of the guide rail 211 and the bar 261 of the first embodiment. An insertion space 32 is formed in the sliding door device 2 when fully opened, but an insertion space 31 corresponding to the first embodiment is not formed in the sliding door device 2 even when fully closed.

First, each part of the building provided with the staircase device 1 will be described.
The pillar A3 replaces the pillar A1 of the first embodiment and has the same configuration as the pillar A1, but is arranged in front of the arrangement position of the pillar A1.
The wall plate B5 replaces the wall plates B1 and B3 of the first embodiment. The wall plate B5 has a rectangular flat plate shape extending in the vertical and front-back directions, and is attached to the pillar A3. The right side of the wall plate B5 covers the right side of the pillar A3. The wall plate B5 has a configuration in which the wall plate B3 is extended to the front side.
The wall plates B5 and the wall plates B2 and B4 are separated and juxtaposed in the left-right direction. The right surface of the wall plate B5, the left end surface of the wall plate B2, and the left surface of the wall plate B4 are arranged to face each other in the left-right direction.

The ceiling plate C2 and the floor plate D2 replace the ceiling plate C1 and the floor plate D1 of the first embodiment.
The ceiling plate C2 has a flat plate shape extending in the front-rear and left-right directions, and intersects the upper side portions of the wall plates B2, B4, and B5, respectively.
The floor plate D2 has a flat plate shape extending in the front-rear and left-right directions, and intersects the lower side portions of the wall plates B2, B4, and B5, respectively.
The ceiling board C2 and the floor board D2 are arranged at least on the front side of the wall board B2, on the right side of the wall board B4, and between the wall boards B4 and B5.

The communication opening E2 replaces the communication opening E1 of the first embodiment.
The communication opening E2 has a rectangular shape surrounded by a ceiling plate C2, a floor plate D2, a wall plate B5, and wall plates B2 and B4 on the top, bottom, left, and right. The upper inner surface of the inner peripheral surface of the communication opening E2 is the lower surface of the ceiling plate C2, the lower inner surface is the upper surface of the floor plate D2, the left inner surface is the right surface of the wall plate B5, and the right inner surface is the left end of the wall plate B2. It consists of a surface and the left surface of the wall plate B4. The user goes up and down the stairs 11 through the communication opening E2.
A wall surface Bb is adjacent to the right side of the communication opening E2.

The guide rail 212 has the same configuration as the guide rail 211, but is attached to the lower surface of the ceiling plate C2. The guide rail 211 needs to be embedded in the ceiling plate C1 at the time of building construction, but the guide rail 212 may be attached to the ceiling plate C2 at the time of building construction and is added to the ceiling plate C2 after the building is completed. May be done.
The right end of the guide rail 212 is arranged on the front side of the wall surface Bb, and the left end of the guide rail 212 and the central part in the left-right direction are arranged on the front side of the communication opening E2.
The traveling portion 221 of each traveling body 22 is guided by the guide rail 212 and travels in the left-right direction.

The sliding door main body 23 faces the wall surface Bb in the front-rear direction and can move in the lateral direction along the wall surface Bb. The rear surface 23b is one surface of the sliding door body 23 facing the wall surface Bb, and the front surface 23a is the other surface on the opposite side of the rear surface 23b.
The sliding door main body 23 is a hanging type suspended from the guide rail 212 via the traveling bodies 22 and 22, and opens and closes the communication opening E2 in the left-right direction.

The bar material 262 is attached to the left surface of the wall plate B5. The bar 262 has a long square columnar shape in the vertical direction and functions as a door stop material. The sliding door main body 23 moves in the left-right direction on the right side of the right side of the bar member 262.
A vertically long door stop groove 26d is provided on the right side of the bar 262, and a packing (not shown) is arranged on the right side of the bar 262 (inner bottom surface of the door stop groove 26d) inside the door stop groove 26d. Has been done.
When the communication opening E2 is completely closed, the packing of the bar 262 is sandwiched between the bar 262 and the left end surface of the sliding door main body 23. As a result, the packing of the bar 262 covers the gap between the bar 262 and the sliding door main body 23.

The staircase device 1 as described above has the same left-right effect as that of the first embodiment.
When the communication opening E2 is completely closed, the insertion space 31 is not formed, but there is no particular problem because the user can easily see the pull tab 251 through the communication opening E2.
The sliding door device 2 may include a guide rail embedded in the ceiling plate C2 instead of the guide rail 212.

Embodiment 4.
FIG. 12 is a cross-sectional view illustrating a configuration on the door end side of the sliding door device 2 included in the staircase device 1 according to the fourth embodiment of the present invention. FIG. 12 corresponds to FIG. 5 of the first embodiment.
The staircase device 1 of the present embodiment has substantially the same configuration as the staircase device 1 of the first embodiment. Hereinafter, the differences from the first embodiment will be described, and other parts corresponding to the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The sliding door device 2 includes a sliding door main body 41 and a pull tab 42 in place of the sliding door main body 23 and the pull tab 24. Further, the sliding door device 2 includes a staircase side puller (not shown) instead of the puller 251. The sliding door device 2 is not provided with bar members 261,27 and packings 28, 29, and the insertion spaces 31 and 32 are not formed.
FIG. 12 shows the opening of the communication opening E1 by the sliding door main body 41.

The sliding door main body 41 has a front surface 41a, a rear surface 41b, and a left end surface 41c. The sliding door main body 41 has the same configuration as the sliding door main body 23, but the clearance between the wall surfaces Ba and Bb and the rear surface 41b in the front-rear direction is about 20 mm as in the conventional case. Further, the unremaining allowance of the sliding door main body 41 is 0 mm, which is 70 mm or more smaller than the conventional one.
The rear surface 41b is provided with a pull tab on the stairs side. The staircase side puller may have the same configuration as the conventional puller or the same configuration as the puller 251 but is arranged at a distance of 15 mm or more from the door to the right side. Therefore, when the communication opening E1 is completely closed, the staircase side puller faces the communication opening E1, so that the staircase side puller can be easily visually recognized and used. On the other hand, when the communication opening E1 is completely opened, the staircase side puller is covered with the wall surface Bb from the rear side, so that it is difficult to visually recognize and use the staircase side puller.

The pull tab 42 has digging pull tabs 421 and 422.
The digging puller portion 421 is provided on the left side portion of the front surface 41a of the sliding door main body 41.
The digging puller portion 422 is provided on the front side portion of the left end surface 41c of the sliding door main body 41.
The portion of the pull tab 42 that constitutes the digging puller portion 421 and the portion that constitutes the digging puller portion 422 are integrally formed, but both may be formed separately.

When the communication opening E1 is completely opened, the pull tab 42 is arranged in front of the wall surface Ba. However, the user can easily see the digging puller portion 421 through the communication opening E1.

In the case of the staircase device 1 as described above, since the remaining margin of the sliding door main body 41 is shorter than that of the first embodiment, the effective opening width is further longer than that of the first embodiment.
When completely opening the completely closed communication opening E1, the user first puts his finger on the puller on the stairs side to move the sliding door body 41 to the right, and then the digging puller portion 422. Alternatively, a finger is placed on the left end surface 41c of the sliding door main body 41 to move the sliding door main body to the right to the end. Since the digging puller portion 422 or the sliding door main body 41 is not arranged on the front side of the wall surface Bb, there is no possibility that the user's finger is caught between the sliding door main body 41 and the wall surface Bb.

When completely closing the completely open communication opening E1, the user first puts his finger on the digging puller portion 422 and pulls out the sliding door body 41 from the front side of the wall surface Bb to the left to the appropriate length, and then pulls out the sliding door body 41 to the left. Then, put your finger on the puller on the stairs side to move the sliding door body 41 to the left to the end.
On the other hand, the user in the living space F puts his finger on the digging puller portion 421 to move the sliding door main body 41 laterally. For the user in the living space F, the digging puller portion 421 is easy to see and put a finger on.
As described above, the pull tab 42 and the pull tab on the stairs side are easy to see and can be easily hung with a finger. Therefore, the sliding door device 2, and thus the staircase device 1, are highly convenient when opening and closing.

The embodiments disclosed this time should be considered as exemplary in all respects and not restrictive. The scope of the present invention is not intended to include the meaning described above, but is intended to include the meaning equivalent to the scope of claims and all modifications within the scope of claims.
Further, as long as the effect of the present invention is effective, the staircase device 1 or the sliding door device 2 may include components not disclosed in the first to fourth embodiments.
The constituent requirements (technical features) disclosed in each embodiment can be combined with each other, and new technical features can be formed by the combination.

1 Stairs device 11 Stairs 2 Sliding door device 23 Sliding door body 24 Puller (second puller)
251,252 Puller (1st puller)
261,27 Bar material (parting material)
28,29 Packing 31, 32 Insertion space (space where hands can be inserted)

Claims (12)

A hanging sliding door body that can move laterally along the wall surface facing the wall surface and opens and closes an opening adjacent to the wall surface.
A first puller provided on one side of the sliding door body facing the wall surface, and
In a sliding door device provided with a second puller provided on the other side of the sliding door body on the opposite side of the one side.
A space into which a hand can be inserted is provided between the wall surface and the one surface.
The space is surrounded by the wall surface, the one surface, and a parting material attached to the wall surface.
The vertical length of the first puller is longer than the vertical length of the second puller.
A sliding door characterized in that the upper end position of the first puller is higher than the upper end position of the second puller, or the lower end position of the first puller is lower than the lower end position of the second puller. apparatus. A hanging sliding door body that can move laterally along the wall surface facing the wall surface and opens and closes an opening adjacent to the wall surface.
A first puller provided on one side of the sliding door body facing the wall surface, and
In a sliding door device provided with a second puller provided on the other side of the sliding door body on the opposite side of the one side.
A space into which a hand can be inserted is provided between the wall surface and the one surface.
The space is surrounded by the wall surface, the one surface, and a parting material attached to the wall surface.
The sliding door device, characterized in that the remaining allowance of the sliding door main body is longer than the distance from the door end of the sliding door main body to the door end side end of the first puller. A hanging sliding door body that can move laterally along the wall surface facing the wall surface and opens and closes an opening adjacent to the wall surface.
A first puller provided on one side of the sliding door body facing the wall surface, and
In a sliding door device provided with a second puller provided on the other side of the sliding door body on the opposite side of the one side.
A space into which a hand can be inserted is provided between the wall surface and the one surface.
The space is surrounded by the wall surface, the one surface, and a parting material attached to the wall surface.
The sliding door device, characterized in that the remaining allowance of the sliding door main body is shorter than the distance from the door end of the sliding door main body to the door tail side end of the first puller. The sliding door device according to claim 3, wherein the remaining allowance of the sliding door main body is longer than the distance from the door end of the sliding door main body to the door end side end of the first puller. The vertical length of the first puller is longer than the vertical length of the second puller.
A claim characterized in that the upper end position of the first puller is higher than the upper end position of the second puller, or the lower end position of the first puller is lower than the lower end position of the second puller. Item 2. The sliding door device according to any one of Items 2 to 4. The sliding door device according to any one of claims 1 to 5, wherein the separation distance between the wall surface and the one surface in the facing direction is 30 mm or more. The sliding door device according to any one of claims 1 to 6, wherein the first puller and the second puller are digging pullers, respectively. The sliding door device according to any one of claims 1 to 7 , wherein the first puller is arranged closer to the door than the second puller. The parting material is a bar material that is long in the vertical direction and is attached to the wall surface at an appropriate length from the peripheral edge of the opening on the wall surface.
The sliding door device according to any one of claims 1 to 8 , further comprising a packing that covers a gap between the bar member and the sliding door main body when the opening is closed by the sliding door main body. The sliding door device according to any one of claims 1 to 9.
A staircase device comprising a staircase that connects upstairs and downstairs and is raised and lowered through the opening. The sliding door device according to claim 1 or 5,
It is equipped with stairs that connect upstairs and downstairs and are raised and lowered through the opening.
The sliding door device is arranged on the downstairs side,
A staircase device characterized in that the upper end position of the first puller is higher than the upper end position of the second puller. The sliding door device according to claim 1 or 5,
It is equipped with stairs that connect upstairs and downstairs and are raised and lowered through the opening.
The sliding door device is arranged on the upper floor side.
A staircase device characterized in that the lower end position of the first puller is lower than the lower end position of the second puller.

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