JP2021067108A - sliding door - Google Patents

Abstract

To provide a method for preventing an unfavorable gap for fire prevention from being formed on the door end side of a door body of the sliding door when the door body is in the fully closed posture.SOLUTION: A sliding door includes a door body that opens and closes an opening when a suspension vehicle unit 8 travels on a rail 70. In a sliding door in which the door end side portion of a door body 6 fits in the recess when the opening is fully closed, the suspension vehicle unit includes at least one roller 80 and a door body lowering amount regulating unit 9. In the normal state in which the roller is in contact with the rail, the door body lowering amount regulating unit is located above the rail member 7 by a predetermined distance D. When the roller is melted or deformed by heat of a fire and the door body is lowered by a predetermined distance, the door body lowering amount regulating unit comes into contact with the rail member, so that the lowering of the door body is restricted and the excessive inclination of the door body when the opening is fully closed is restricted so as to prevent a gap from being formed on the door end side of the door body in front view.SELECTED DRAWING: Figure 5

Description

The present invention relates to a sliding door, and more particularly to a sliding door having a performance as a fire prevention facility.

In a sliding door represented by an automatic door, the rollers of the left and right suspension vehicle units provided at the upper end of the door body slide on the rail to open and close the opening by sliding in the left-right direction. From the viewpoint of quietness when the door body is running, resin rollers are often used, but when the resin of the rollers melts due to the influence of heat such as fire when the opening is fully closed, the height of the resin rollers Will be lowered and the door body will be lowered. At this time, depending on the mode of melting of the resin roller (for example, when the height of the resin roller of the suspension wheel unit on the door end side becomes lower than the height of the resin roller of the suspension wheel unit on the door end side), the door is fully closed. The door body in the posture may be tilted to create a gap on the door end side (for example, the lower end portion on the door end side) of the door body. If a gap is created on the door end side of the door body in the fully closed posture, a penetration portion of the indoor / outdoor space partitioned by the door body will be formed, and the performance as a fire prevention facility cannot be maintained.

In order to prevent the door body from lowering in the event of a fire, it is conceivable to use steel rollers for the rollers of the suspension vehicle unit, but it is difficult to ensure quiet running during normal opening and closing.

Patent Document 1 and Patent Document 2 describe a fall-out prevention means for preventing a roller from falling off a rail in a sliding door. These documents prevent the door body from coming off the normal position by preventing the roller from falling off the rail.
Patent No. 3084619 Patent No. 4105330

An object of the present invention is to prevent an unfavorable gap for fire prevention from being formed on the door end side of the door body when the door body of the sliding door is in the fully closed posture.

The technical means adopted by the present invention includes a door body that opens and closes the opening when a suspension wheel unit provided at the upper end runs on a rail, and when the opening is fully closed, the door end side portion of the door body is high. In a sliding door, which is housed to form a swallowing part across the vertical direction.
The suspension vehicle unit includes at least one roller and a door body lowering amount regulating unit.
In a normal state in which the roller is in contact with the rail, the door body lowering amount regulating portion is located above the immovable member portion by a predetermined distance.
When the roller is melted or deformed by the heat of a fire and the door body is lowered by a predetermined distance, the door body lowering amount regulating portion comes into contact with the portion of the immovable member, so that the door body is lowered. Regulate
By restricting the lowering of the door body and restricting the excessive inclination of the door body when the opening is fully closed, the swallowing portion is maintained in the height direction, and the door tip side of the door body is viewed from the front. A sliding door that prevents the formation of gaps in the door.
In one embodiment, the swallowing portion is a portion of the door body on the door end side and a portion in which the door end side portion is housed when the opening is fully closed (for example, a vertical frame of a sliding door frame or a vertical frame on the door end side in a drawing sliding door). A recess is formed in one of the two, and the other is formed by fitting in the recess.
In one aspect, when the opening is fully closed, the swallowing portion is formed by fitting the door end side portion of the door body into the recess along the height direction.
The door body lowering amount regulating portion abuts on the portion of the immovable member to regulate the lowering of the door body, and the door end side portion of the door body is accommodated in the recessed portion in the height direction. The swallowing portion is maintained.
In one aspect, a recess is formed in the door end side portion of the door body in the height direction, and when the opening is fully closed, a convex portion is formed in the recess of the door body in the height direction. The swallowing portion is formed by accommodating (for example, provided in the vertical frame of the sliding door frame or the vertical frame on the door end side of the sliding door).
The door body lowering amount regulating portion abuts on the portion of the immovable member to regulate the lowering of the door body, and the convex portion fits in the concave portion of the door body in the height direction to swallow the door body. The part is maintained.

In a typical aspect, the sliding door is an automatic door.
In a typical embodiment, the roller is made of resin.
In a typical embodiment, the door body lowering amount regulating portion is made of metal (for example, steel).
The above-mentioned "excessive inclination" means an inclination such that a gap is formed on the door end side of the door body in a front view.
More specifically, the swallowing dimension of the swallowing portion is L (for example, when the opening is fully closed, the door end side portion of the door body is housed in the recess with the swallowing dimension L), and the door body lowering amount regulating portion. Is located above the portion of the immovable member by a distance D. Here, the distance D is the maximum amount of reduction of the door body. The swallowing dimension L and the distance D maintain the swallowing portion in the height direction even when the door body is tilted to the maximum due to the door body being lowered (the door end side portion of the door body is). (It is housed in the recess in the height direction), and the dimensions are set so that no gap is formed in the front view.
When the door body including the first suspension vehicle unit and the second suspension vehicle unit separated by the distance A in the height dimension C constitutes a single sliding door, the maximum amount of lowering of the door body D is assumed. , The swallowing dimension L is set so as to satisfy L> (C / A) × D.
The dimension (C / A) x D is the door end side of the door body when the door body is tilted to the maximum (specifically, when only one of the first suspension vehicle unit and the second suspension vehicle unit is lowered by the maximum amount). It represents the amount of movement in the horizontal direction of the lower end or the upper end of the door end side.
As is clear from the formula L> (C / A) × D, the swallowing dimension L can be reduced by setting the distance D small.

A component member of the sliding door (for example, a rail member forming a rail) may also serve as an immovable member.
In one embodiment, the immovable member is a rail member that forms or supports the rail. That is, when the roller is melted or deformed, the door body lowering amount regulating portion comes into contact with the rail member portion. The portion of the rail member may be the rail.
The immovable member may be, for example, a member prepared as a member separate from the rail member and fixed to the rail member, or an immovable member supported by the upper case.

In one embodiment, the suspension vehicle unit includes a first suspension vehicle unit located on the door end side of the door body and a second suspension vehicle unit located on the door end side of the door body.
The door body lowering amount regulating unit is provided on either one or both of the first suspension vehicle unit and the second suspension vehicle unit.
In the embodiment described later, both the first suspension vehicle unit and the second suspension vehicle unit are provided with the door body lowering amount regulating unit.
Depending on the conditions such as the installation location of the sliding door, the door body lowering amount regulating unit may be provided only on one of the suspension vehicle units. For example, when it is sufficient to regulate only the lowering amount of the door body on the door end side, the door body lowering amount regulating unit may be provided only on the suspension vehicle unit on the door end side.

In one embodiment, the suspension vehicle unit includes two rollers separated in the opening width direction, and an arm that rotatably supports the two rollers is rotatable in the vertical direction at an intermediate portion in the length direction. It is supported, and the door body lowering amount regulating portion is provided at an intermediate portion in the length direction of the arm.
The above-mentioned "rotation in the vertical direction" means a rotation in which one end of the arm moves downward or downward and the other end moves downward or upward.
In one embodiment, the door body lowering amount regulating portion is fixed to the arm by using the rotation shaft of the arm, and rotates (swings) together with the rotation (swing) of the arm.

In one aspect, the swallowing portion is formed of the door end side portion of the door body and a vertical frame constituting the sliding door frame.
In one aspect, the recess is provided in a vertical frame that constitutes a sliding door frame.
The recess may be one prepared by a member separate from the vertical frame and fixed to the prospective surface of the vertical frame, or may be integrally formed with the vertical frame by providing a recessed portion on the prospective surface of the vertical frame itself.

The sliding door is a sliding door composed of a first door body and a second door body.
A recess is provided in the door end side portion of the second door body, and when the opening is fully closed, the door end side portion of the first door body is accommodated in the recess in the height direction to swallow. The part is formed,
The door body lowering amount regulating portion abuts on the portion of the immovable member to regulate the lowering of the first door body and / or the second door body, and the door end side portion of the first door body is high. The swallowing portion is maintained by being housed in the recess in the vertical direction.
Even if the recess is prepared as a separate member from the door end side portion of the second door body and fixed to the door end side prospective surface of the second door body, the door end side prospective surface of the second door body is fixed. A recessed portion may be provided in itself and integrally formed with the door end side portion of the second door body.
When the first door body and the second door body constituting the drawing door have a height dimension C and are provided with a first suspension vehicle unit and a second suspension vehicle unit separated by an interval A in the door width direction, the first Assuming that the maximum amount of reduction D of the 1-door body and the 2nd door body is set, the swallowing dimension L is set so as to satisfy L> (C / A) × D × 2.
The dimensions (C / A) x D x 2 are in the direction in which the upper ends or the lower ends of the door end side are separated from each other when the door body is tilted to the maximum (specifically, the first door body and the second door body are separated from each other. It represents the amount of separation in the horizontal direction between the lower end of the door end side or the upper end of the door end side of the first door body and the second door body (when tilted most).

The present invention regulates the amount of lowering of the door body by the door body lowering amount regulating unit in the event of a fire or the like to regulate the excessive inclination of the door body when the opening is fully closed. The side portion is maintained to be housed in the concave portion in the height direction, and it is prevented that a gap which is disadvantageous for fire prevention is formed on the door end side of the door body in the front view. Therefore, the sliding door according to the present invention maintains its performance as a fire prevention facility in the event of a fire.
The door body lowering amount regulating unit according to the present invention can be prepared as a simple member such as a metal plate having a predetermined shape and size, and by adding the metal plate to a normal suspension vehicle unit, the door body lowering amount can be prepared. It is possible to obtain a quantity control unit, and it is possible to standardize the parts of the suspension vehicle unit.
In the present invention, by limiting the amount of lowering of the door body by the door body lowering amount regulating portion, it is possible to regulate the excessive inclination of the door body when the opening is fully closed. The swallowing dimension of the side portion can be reduced, and therefore it is not necessary to increase the depth dimension of the recess in order to secure a large swallowing dimension. In the present invention, it does not prevent the recess from being deepened in order to secure a sufficient swallowing dimension, but when it is not possible to select to design the recess deeply, the swallowing dimension of the door end side portion of the door body with respect to the recess. It is useful to be able to reduce.

It is a front view which looked at the single sliding door (when the opening is fully closed) which concerns on this embodiment from the outdoor side. It is the cross-sectional view of the sliding door which concerns on this embodiment, the upper side is an outdoor side, and the lower side is an indoor side. It is a vertical cross-sectional view of the sliding door according to this embodiment, the left side is the outdoor side, and the right side is the indoor side. It is a figure which shows the drive mechanism of the sliding door which concerns on this embodiment. It is a figure which shows the upper end part of the door body of the sliding door which concerns on this embodiment, and the suspension wheel unit. It is a figure which shows the suspension wheel unit of the sliding door which concerns on this embodiment, the upper figure is a front view seen from the outdoor side, the middle view is a plan view, and the lower figure is a front view seen from the indoor side. It is a front view which looked at the draw sliding door (when the opening is fully closed) which concerns on this embodiment from the outdoor side. It is the cross-sectional view of the sliding door which concerns on this embodiment, the upper side is an outdoor side, and the lower side is an indoor side. It is a schematic diagram explaining the relationship between the maximum amount of lowering of a door body and the swallowing dimension of the door end side part of a door body.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the sliding door (when the opening is fully closed) according to the present embodiment as viewed from the outdoor side, and FIG. 2 is a cross-sectional view of the sliding door according to the present embodiment. It is an indoor side, and FIG. 3 is a vertical sectional view of a sliding door according to the present embodiment, in which the left side is the outdoor side and the right side is the indoor side. The sliding door according to the present embodiment is an automatic door including a hanging type sliding door.

The sliding door includes a sliding door frame formed of a door tip side vertical frame 1, a door tail side vertical frame 2, an upper case 3, and a lower frame 4. A vertical rectangular fixed panel 5 is provided in the widthwise door tail side half of the sliding door frame, and the width direction door end side half (the door end side vertical frame 1 of the sliding door frame and the door end side vertical of the fixed panel 5). A building opening is formed (between the stile 50). The surface portion of the fixed panel 5 is formed from the glass panel G. In the present embodiment, the door end side vertical frame 1 and the door tail side vertical frame 2 of the sliding door frame extend upward beyond the upper case 3, and the door end side vertical frame 1 and the door tail side vertical frame 2 The upper ends are connected by an upper frame 3'. A glass panel G is fitted in the space between the upper frame 3'and the upper case 3.

The sliding door is provided with a vertically rectangular door body 6, and the door body 6 slides left and right to open and close the opening of the building. The door body 6 includes a door end side vertical frame 60, a door end side vertical frame 61, an upper frame 62, and a lower frame 63, and includes a door end side vertical frame 60, a door end side vertical frame 61, and a door end side vertical frame 61. A glass panel G is fitted in a vertically rectangular region surrounded by an upper stile 62 and a lower stile 63, and the glass panel G forms a surface portion.

The upper case 3 is a box-shaped body extending in the opening width direction as a whole, and a rail member 7 is provided in the internal space over substantially the entire width of the upper case 3, and the portion of the rail member 7 is provided in the opening width direction. It forms an extending rail 70. The rail member 7 is a long member having a predetermined width extending in the front-rear direction (indoor / outdoor direction) and a predetermined length extending in the opening width direction, and is an immovable member fixed in the upper case 3. The rail member 7 according to the present embodiment has a substantially L-shaped cross section from the horizontal side 71 and the vertical side 72.

More specifically, as shown in FIG. 5, the rail member 7 includes a horizontal side 71 in which a rail 70 is formed at one end in the front-rear direction and a vertical side 72 rising from the other end in the front-rear direction of the horizontal side 71. , Is equipped. In the present embodiment, the vertical side 72 of the rail member 7 is located inside the outdoor side finding surface 30 of the upper case 3, and the outdoor side portion of the horizontal side 71 is integrally formed with the lower end of the vertical side 72. The rail 70 is integrally formed at the indoor end of the horizontal side 71. The horizontal side 71 according to the present embodiment includes a first portion 710 on which the rail 70 is formed and a second portion 711 on the lower end side of the vertical side 72, and the first portion 710 is higher than the second portion 711. In position. The rail member 7 shown in FIG. 5 is an example, and the shape of the rail member 7 is not limited to that shown. For example, in the illustrated embodiment, the rail 70 is integrally formed with the rail member 7, but the rail may be prepared as a separate member and supported by the rail member. In the illustrated embodiment, the rail 70 is a convex portion, but for example, a groove-shaped rail may be formed from the concave portion.

A suspension wheel unit 8 is provided on the upper end of the door body 6, that is, on the upper surface of the upper stile 62. In the present embodiment, the suspension vehicle unit 8 includes a first suspension vehicle unit (door end side suspension vehicle unit) 8A provided at a position closer to the door end side of the upper end portion of the door body 6, and an upper end portion of the door body 6. It is composed of a second suspension vehicle unit (door tail side suspension vehicle unit) 8B provided at a position closer to the door tail side (see FIG. 4). In the present specification, the first suspension vehicle unit 8A and the second suspension vehicle unit 8B are represented by the suspension vehicle unit 8 on behalf of the first suspension vehicle unit 8A, and when the two suspension vehicle units are identified and described, the first suspension vehicle unit 8A, first 2 The term suspension vehicle unit 8B is used.

The suspension wheel unit 8 includes two resin rollers 80 provided apart from each other in the opening width direction (the width direction of the door body 6 or the length direction of the rail member 7), and the two resin rollers 80 are provided. It is rotatably supported by an arm 81 extending in the opening width direction (the width direction of the door body 6 or the length direction of the rail member 7). One resin roller 80 is rotatably supported at one end of the arm 81, and the other resin roller 80 is rotatably supported at the other end of the arm 81. It is rotatably supported by the support portion 82 at an intermediate point between the two shaft branches. The suspension wheel unit 8 further includes a side view L-shaped base including a vertical base 83 and a horizontal base 84 integrally formed at the lower end of the vertical base 83, and a support portion 82 in which the arm 81 is rotatably supported is provided. , Fixed to the vertical base 83. The suspension wheel unit 8 is fixed to the upper end portion of the door body 6 via the horizontal base 84.

The door body 6 can slide and move in the opening width direction (left-right direction) by rolling the resin roller 80 of the suspension wheel unit 8 on the rail 70 of the rail member 7. As shown in FIG. 3, a steady rest protrusion 630 is formed on the lower end portion of the door body 6, that is, the lower surface of the lower stile 63, and when the door body 6 slides, the lower end steady rest protrusion 630 is formed. It moves along the guide groove 40 formed in the lower frame 4.

The arm 81 is rotatably supported in the vertical direction with an intermediate point in the length direction as a rotation fulcrum. More specifically, the arm 81 can rotate (swing) so that when one end of the arm 81 moves up and down, the other end moves down and up. When the door body 6 is traveling, the end portion in the length direction of the arm 81 (that is, the resin roller 80) can be finely moved up and down as needed, enabling smooth sliding movement of the door body 6.

The horizontal base 84 of the suspension wheel unit 8 is provided with a sliding contact portion 85 having good slipperiness, which is located below an intermediate portion (rotating fulcrum of the arm) in the length direction of the arm 81. The sliding contact portion 85 according to the present embodiment is made of resin and is supported by a support portion 850 fixed to the vertical base 83 of the base. In the suspension wheel unit 8, the sliding contact portion 85 is close to the lower surface of the rail 70 of the rail member 7, and the resin of the suspension wheel unit 8 is combined with the two resin rollers 80 that are in contact with the upper surface of the rail 70. It prevents the roller 80 from coming off the rail 70. In the components of the suspension wheel unit 8 according to the present embodiment, all the components except the resin roller 80 and the sliding contact portion 85 are made of metal (steel).

The sliding door according to the present embodiment is an automatic door, and a drive mechanism is provided in the upper case 3 of the sliding door frame. The drive mechanism includes a motor 32, a drive side sprocket 33, a driven side sprocket 34, and a timing belt 35 wound between the drive side sprocket 33 and the driven side sprocket 34, and accompanies the movement of the timing belt 35. The sprocket unit 8 is moved on the rail 70. For example, one of the first suspension vehicle unit 8A and the second suspension vehicle unit 8B is the drive side suspension vehicle unit, and the other is the driven side suspension vehicle unit. Since the drive mechanism of the automatic door is known, further detailed description thereof will be omitted. The indoor side finding surface 31 of the upper case 3 forms an inspection cover, and by removing the inspection cover, the internal space of the upper case 3 is exposed, and maintenance of the drive mechanism is possible.

The outdoor side finding surface 30 and the indoor side finding surface 31 of the upper case 3 are provided with a start-up sensor S1 located above the building opening, and are located in front of the building opening by the start-up sensor S1. By detecting a person, the motor 30 is driven to open the door body 6 in the fully closed posture. A touch sensor S2 is provided on the outdoor side finding surface 600 and the indoor side finding surface 601 of the door end side vertical frame 60 of the door body 6, and the motor 30 is driven by touching the touch sensor S2. The door body 6 in the fully closed posture can be opened. Either of the activation sensor S1 and the touch sensor S2 may be used depending on the installation location of the automatic door and the like.

The suspension vehicle unit 8 has a door body lowering amount regulating unit 9. The door body lowering amount regulating unit 9 according to the present embodiment is made of a metal plate. More specifically, as shown in FIG. 6, the door body lowering amount regulating portion 9 is a substantially rectangular metal plate, and has a curved edge 90 whose lower end edge bulges downward. The door body lowering amount regulating portion 9 is attached to the arm 81 by fixing the central portion in the width direction to the rotation shaft portion 810 of the arm 81. The lowest point of the curved edge 90 of the door body lowering amount regulating portion 9 is located directly below the rotation fulcrum of the arm 81. As shown in the central view of FIG. 6, the central portion of the arm 81 in the length direction is concave, and the door body lowering amount regulating portion 9 made of a metal plate is attached to the concave portion. As shown in FIG. 5, the door body lowering amount regulating unit 9 according to the present embodiment is located at a position biased with respect to the resin roller 80 in the suspension vehicle unit 8 (in the present embodiment, a position biased toward the outdoor side). It is provided so that when the door body 6 is lowered, it does not abut on the rail 70, but a part of the rail member 7 that supports the rail 70 (specifically, the first part 710 of the horizontal side 71). It has become.

When the door body 6 is normally opened / closed and fully closed, specifically, when the resin roller 80 of the suspension vehicle unit 8 is mounted on the rail 70, the lowermost portion of the curved edge 90 of the door body lowering amount regulating portion 9 The points are separated from the upper surface of the first portion 710 of the horizontal side 71 of the rail member 7 by a distance D. Since the lower end of the curved edge 90 of the door body lowering amount regulating portion 9 of the suspension vehicle unit 8 is separated from the upper surface of the first portion 710 of the horizontal side 71 of the rail member 7 by a distance D, the suspension vehicle unit of the door body 6 is separated. When the resin roller 80 of 8 travels on the rail 70, the door body lowering amount regulating portion 9 does not come into contact with the rail member 7. The door body lowering amount regulating portion 9 is fixed to the arm 81 and rotates (swings) integrally with the arm 81, but the lowest point of the curved edge 90 of the door body lowering amount regulating portion 9 is the arm 81. Since it is located directly below the rotation fulcrum of the door body, the height position of the lowest point of the curved edge 90 of the door body lowering amount regulating portion 9 is constant, and the arm is used when the door body 6 is running and when the door body 6 is fully closed and stopped. Regardless of the posture of 81 (door body lowering amount regulating unit 9), the door body lowering amount regulating unit 9 does not come into contact with the rail member 7. The suspension vehicle unit 8 according to the present embodiment can be obtained by adding a door lowering amount regulating unit 9 made of a metal plate to the normal suspension vehicle unit, and it is possible to standardize the parts of the suspension vehicle unit. .. The door body lowering amount regulating portion 9 is not limited to the metal plate, and the shape or the like is not limited as long as it includes a contact portion that comes into contact with an immovable member such as the rail member 7.

When the opening is fully closed, if the resin roller 80 of the suspension wheel unit 8 is melted or deformed by the heat of a fire, the height dimension of the resin roller 80 may be lowered. At this time, the door body 6 is lowered by the amount that the height of the resin roller 80 is lowered, but when the door body 6 is lowered by D in the vertical direction, the curved edge 90 of the door body lowering amount regulating portion 9 is lowered. The lowermost point of the door body 6 abuts on the upper surface of the first portion 710 of the horizontal side 71 of the rail member 7, so that the lowering amount of the door body 6 is limited. That is, the distance D defines the maximum amount of reduction of the door body 6.

The sliding door according to the present embodiment can be used as a fire prevention facility, and when the opening is fully closed, a gap penetrating indoors and outdoors is not formed on the door end side and the door end side of the door body 6. On the door butt side of the door body 6, the door butt side vertical stile 61 of the door body 6 overlaps the door end side vertical stile 50 of the fixed panel 5, and the first side 61a formed on the door butt side vertical stile 61. And the second side 50a formed on the door end side vertical frame 50, and a karaoke structure is formed.

On the door end side of the door body 6, the door end side portion of the door body 6 (the door end side portion of the door end side vertical frame 60) is housed in the recess 11 formed in the door end side vertical frame 1 of the sliding door frame. It is designed to form a swallowing part. In the present embodiment, as shown in FIG. 2, the recess is formed by a member 11'with a concave cross section provided on the prospective surface 10 of the door end side vertical frame 1 of the sliding door frame in the height direction. The member 11'has a concave cross-sectional shape from the outdoor side side 110', the indoor side side 111', and the bottom side 112', and the bottom side 112'is fixed to the prospective surface of the door end side vertical frame 1 and is located on the outdoor side. A recess 11 is formed from a region surrounded by a side, an indoor side side, and a bottom side. A convex portion 602 is formed on the door end side end surface of the door end side vertical frame 60 of the door body 6 in the height direction, and when the opening is fully closed, the convex portion 60 of the door end side vertical frame 60 of the door body 6 is formed. The portion 602 is adapted to fit in the recess 11 formed in the prospective surface 10 of the door end side vertical frame 1 with a swallowing dimension L.

When the opening is fully closed, the resin roller 80 is melted or deformed by the heat of a fire, and the door body 6 is lowered. When the door body 6 is lowered by the distance D, the door body lowering amount regulating portion 9 is set on the horizontal side of the rail member 7. By abutting on the upper surface of the first portion 710 of 71, the door body 6 is further restricted from being lowered. Here, if there is a difference in the degree of melting or deformation of the resin rollers 80 of the first suspension vehicle unit 8A and the second suspension vehicle unit 8B, the height of the door body 6 in the fully closed posture on the door end side There is a possibility that the door body 6 will tilt due to the difference in height on the door tail side.

In the present embodiment, the door body lowering amount regulating unit 9 regulates the lowering amount of the door body 6, so that there is a difference between the height of the door body 6 in the fully closed position on the door end side and the height on the door end side. Even in the case of coming out, it is possible to regulate the excessive inclination of the door body 6 when the opening is fully closed (inclination such that a gap is formed on the door end side of the door body 6 in the front view). The convex portion 602 of the door end side portion of the door body 6 is maintained to be housed in the concave portion 11 over the height direction, and a gap penetrating indoors and outdoors is formed on the door end side of the door body 6 in the front view. To prevent that.

Specifically, when the opening is fully closed, the convex portion 602 of the door end side portion of the door body 6 is housed in the concave portion 11 with a swallowing dimension L, and the door body lowering amount regulating portion 9 is horizontal to the rail member 7. It is assumed that the side 71 is located above the upper surface of the first portion 710 at a distance D. Here, the distance D is the maximum amount of reduction of the door body. The swallowing dimension L and the distance D are such that the convex portion 602 of the door end side portion of the door body 6 extends into the concave portion 11 in the height direction even when the door body 6 is tilted to the maximum due to the lowering of the door body 6. The dimensions are set so that it fits in and no gap is formed when viewed from the front. Actually, by setting the distance D small, the swallowing dimension L can be reduced. By limiting the amount of lowering of the door body 6 in the fully closed posture, the swallowing dimension L of the door end side portion (convex portion 602) of the door body 6 with respect to the concave portion 11 can be reduced, and therefore the depth of the concave portion 11 can be reduced. There is no need to increase the dimensions. The depth dimension of the recess 11 may be sufficiently large, but when it is difficult to design the recess 11 deeply, the swallowing dimension of the door end side portion of the door body 6 with respect to the recess 11 is reduced. It is useful to be able to. In the present embodiment, when the opening is fully closed, the door end side of the door body 5 is housed in the recess of the door end side vertical frame 1 of the sliding door frame to form a swallowing portion. A concave portion or a concave groove is formed in the front end surface in the height direction, and a convex portion is formed in the prospective surface of the door end side vertical frame 1 of the sliding door frame in the height direction. The swallowing portion may be formed by fitting the convex portion of the door end side vertical frame 1 of the sliding door frame into the concave portion of the door end side end portion of the body 5.

Other embodiments of the present invention will be described with reference to FIGS. 7 and 8. FIG. 7 is a front view of the sliding door (when the opening is fully closed) according to the present embodiment as viewed from the outdoor side, and FIG. 2 is a cross-sectional view of the sliding door according to the present embodiment. It is on the indoor side. The sliding door according to the present embodiment is an automatic door including a hanging type sliding door.

The sliding door includes a sliding door frame formed of a first vertical frame 1', a second vertical frame 2', an upper case 3, and a lower frame 4. The first fixed panel 5A and the second fixed panel 5B are provided on both sides of the sliding door frame in the width direction, and the door end side vertical frame 50A of the first fixed panel 5A and the door end side vertical frame 50B of the second fixed panel 5B are provided. A building opening is formed between and. The surface portions of the first fixed panel 5A and the second fixed panel 5B are formed of the glass panel G. In the present embodiment, the door end side vertical frame 1'and the door tail side vertical frame 2'of the sliding door frame extend upward beyond the upper case 3, and the door end side vertical frame 1'and the door tail side vertical frame 1'and the door tail side vertical frame. The upper ends of the frame 2'are connected by the upper frame 3'. A glass panel G is fitted in the space between the upper frame 3'and the upper case 3.

The sliding door includes a vertically rectangular first door body 6A and a second door body 6B, and the first door body 6A and the second door body 6B slide to open and close the opening of the building. There is. The first door body 6A includes a door end side vertical stile 60A, a door butt side vertical stile 61A, an upper stile 62A, and a lower stile 63A, and has a door front side vertical stile 60A and a door butt side vertical stile 61A. A glass panel G is fitted in a vertically rectangular region surrounded by the upper stile 62A and the lower stile 63A, and the glass panel G forms a surface portion. The second door body 6B includes a door end side vertical stile 60B, a door butt side vertical stile 61B, an upper stile 62B, and a lower stile 63B, and has a door front side vertical stile 60B and a door butt side vertical stile 61B. A glass panel G is fitted in a vertically rectangular region surrounded by the upper stile 62B and the lower stile 63B, and the glass panel G forms a surface portion.

The outdoor side finding surface 30 and the indoor side finding surface 31 of the upper case 3 are provided with a start-up sensor S1 located above the building opening, and are located in front of the building opening by the start-up sensor S1. By detecting a person, the motor 30 is driven to draw and open the first door body 6A and the second door body 6B in the fully closed posture. A touch sensor S2 is provided on the finding surfaces of the door end side vertical frames 60A and 60B of the door bodies 6 of the first door body 6A and the second door body 6B, and the motor 30 can be touched by touching the touch sensor S2. Is driven to open the first door body 6A and the second door body B in the fully closed posture. By touching either one of the touch sensors S2, both the first door body 6A and the second door body B are drawn and opened. Either of the activation sensor S1 and the touch sensor S2 may be used depending on the installation location of the automatic door and the like.

The first door body 6A and the second door body 6B include a suspension vehicle unit 8 provided with a door body lowering amount regulating unit 9, and a suspension vehicle unit 8 provided with a rail member 7 and a door body lowering amount regulating unit 9. As for the composition of, the above-mentioned description can be incorporated. Further, the automatic door itself, which is a draw type and is composed of a hanging type sliding door, is known, and the description of the drive mechanism will be omitted.

The sliding door according to the present embodiment can be used as a fire prevention facility, and when the opening is fully closed, there are gaps penetrating the indoor side on the door end side and the door end side of the first door body 6A and the second door body 6B. It is designed not to be formed. On the door butt side of the first door body 6A, the door butt side vertical stile 61A of the first door body 6A overlaps the door end side vertical stile 50A of the fixed panel 5A, and the door butt side vertical stile 61A and the door end. An interlaced structure (see FIGS. 2 and 8) is formed in the gap between the side vertical frame 50A and the side vertical frame 50A. On the door butt side of the second door body 6B, the door butt side vertical stile 61B of the second door body 6B overlaps the door end side vertical stile 50B of the fixed panel 5B, and the door butt side vertical stile 61B and the door end An interlaced structure (see FIGS. 2 and 8) is formed in the gap of the side vertical frame 50B.

In the present embodiment, as shown in FIG. 8, a mating portion is formed from the door end side portion of the first door body 6A and the door end side portion of the second door body 6B, and the mating portion is a swallowing portion. It has become. More specifically, the door end side vertical frame 60A of the first door body 6A is formed with a convex portion 600A in the height direction, and the door end side vertical frame 60B of the second door body 6B is high. A concave portion 600B is formed in the longitudinal direction, and when the opening is fully closed, the convex portion 602 of the door end side vertical stile 60A of the first door body 6A becomes the door end side vertical stile 60B of the second door body 6B. It fits in the formed recess 600B with a swallowing dimension L.

In the present embodiment, the door body lowering amount regulating unit 9 regulates the lowering amount of the first door body 6A and the second door body 6B, so that the height of the first door body 6A in the fully closed position on the door end side is high. When there is a difference between the height of the door and the door, and / or when there is a difference between the height of the second door 6B in the fully closed position and the height of the door. Even if there is, excessive inclination of the first door body 6A and / or the second door body 6B when the opening is fully closed (from the convex portion 600A of the first door body 6A and the concave portion 600B of the second door body 6B in the front view). It is possible to regulate the inclination such that a gap is formed in the formed mating portion), and the convex portion 600A of the door end side portion of the first door body 6A extends in the height direction of the second door body 6B. A gap that penetrates indoors and outdoors into the combined portion formed from the convex portion 600A of the first door body 6A and the concave portion 600B of the second door body 6B while maintaining the fit in the concave portion 600B of the door end side portion. Is prevented from being formed.

FIG. 9 is a schematic view illustrating the relationship between the maximum amount of lowering of the door body and the swallowing dimension of the door end side portion of the door body. In FIG. 9, the distance between the first suspension vehicle unit and the second suspension vehicle unit is A, the distance from the first suspension vehicle unit on the door end side to the end edge of the door body on the door end side is B, and the height dimension of the door body. Is C, the maximum amount of lowering of the door body is D, and the movement width of the lower end of the door body at the maximum tilt of the door body is S. In the present embodiment (the single-pull type sliding door shown in FIGS. 1 to 4 and the draw-type sliding door shown in FIGS. 7 and 8), both the first suspension vehicle unit and the second suspension vehicle unit have two rollers. However, the distance A between the first suspension vehicle unit and the second suspension vehicle unit is, for example, the distance between the rotation center of the arm of the first suspension vehicle unit and the rotation center of the arm of the second suspension vehicle unit. Can be used.

(A) In the left figure of FIG. 9, as shown in the equation (1), the movement width S is S = X + Y.
(A) From the right figure of FIG. 9, assuming that the distance between the points α and β = E, X = (A + B) -E as shown in the equation (2).
(C) Considering a right triangle consisting of a hypotenuse A + B, a short side {(A + B) / A} × D, and a long side E in the right figure of FIG. 9, the interval E can be expressed as in the equation (3). it can.
(D) From the two right triangles in the left figure of FIG. 9, Y = (C / A) × D as shown in the equation (4).
(E) X can be regarded as X≈0 when D is sufficiently small with respect to A + B, and in fact, D is sufficiently small with respect to A + B.
(F) Therefore, as shown in the equation (5), S≈ (C / A) × D.

For example, the distance between the first suspension vehicle unit and the second suspension vehicle unit A = 750 mm, the distance from the first suspension vehicle unit on the door end side to the end edge of the door body on the door end side B = 150 mm, and the height dimension of the door body. Assuming that C = 2000 mm and the maximum amount of lowering of the door body D = 5 mm, X = 0.02 mm and Y = 13.33 mm, and the movement width of the lower end of the door body S = 13.35 mm. Assuming that X≈0, the movement width S≈13.33 mm at the lower end of the door body. Assuming that the maximum amount of lowering of the door body is D = 2 mm, X ≈ 0 and Y = 5.33 mm, and the movement width S ≈ 5.33 mm at the lower end of the door body.

The swallowing dimension L and the maximum lowering amount D are such that the swallowing portion is maintained in the height direction even when the door body is tilted to the maximum due to the door body being lowered (for example, the door end side of the door body). The size is set so that the part fits in the recess along the height direction).

In the single sliding door, when the door body is tilted most as shown in the left figure of FIG. 9, the first suspension vehicle unit on the door end side is lowered by D, and the height of the second suspension vehicle unit on the door tail side does not change. If this is the case. In the opposite case, specifically, even if the second suspension vehicle unit on the door tail side is lowered by D and the height of the first suspension vehicle unit on the door end side does not change, the inclination angle (direction is different). ) Are substantially the same. When the door body including the first suspension vehicle unit and the second suspension vehicle unit separated by the distance A in the height dimension C constitutes the single sliding door, the swallowing dimension L is L> ( It is set to satisfy C / A) × D. Therefore, in the case of a single sliding door, if D and L are designed so as to satisfy L> S≈ (C / A) × D, even when the door body is tilted to the maximum due to the door body being lowered, The door end side portion of the door body fits in the recess along the height direction, and no gap is formed in the front view. In the above example, when D = 2 mm, L> 5.33 mm.

In a drawing sliding door, it is necessary to consider the case where the first door body and the second door body are most inclined in opposite directions. Specifically, there are cases where the first suspension vehicle unit on the door end side of the first door body is lowered by D and the height of the second suspension vehicle unit on the door tail side does not change, and the door end of the second door body. It is necessary to consider the combination when the first suspension vehicle unit on the side is lowered by D and the height of the second suspension vehicle unit on the door tail side does not change. The case where the second suspension vehicle unit on the door tail side of the first door body is lowered by D and the height of the first suspension vehicle unit on the door end side does not change, and the case where the second suspension vehicle unit on the door tail side of the second door body is suspended. The same applies to the combination when the vehicle unit is lowered by D and the height of the first suspension vehicle unit on the door end side does not change. Therefore, it is necessary to consider the case where the lower end (or upper end) of the first door body and the second door body are separated by S so as to be separated from each other. When the first door body and the second door body including the first suspension vehicle unit and the second suspension vehicle unit are configured, the swallowing dimension L shall satisfy L> (C / A) × D × 2. Set. Therefore, in the case of a draw sliding door, if D and L are designed so as to satisfy L> 2S≈ (C / A) × D × 2, the door end side part of the first door body and the door tip of the second door body No gaps are formed in the front view at the mating portion formed in the side portion. In the above example, when D = 2 mm, L> 10.66 mm.

Although the above embodiment relates to an automatic door, the present invention can also be applied to a manual sliding door. In the above embodiment, the single sliding door provided with one door body 6 is shown, but the present invention can also be applied to a so-called double single sliding door. In the above embodiment, a draw sliding door provided with two door bodies 6A and 6B is shown, but the present invention can also be applied to a so-called double draw sliding door.

1 Door end side vertical frame 6 Door body 7 Rail member 70 Rail 8 Suspended vehicle unit 80 Resin roller 81 Arm 9 Door body lowering amount regulation part 90 Curved edge D Maximum lowering amount L Swallowing dimension

Claims (7)

The suspension vehicle unit provided at the upper end is provided with a door body that opens and closes the opening by traveling on the rail, and when the opening is fully closed, the door end side portion of the door body forms a swallowing portion in the height direction. In the sliding door, which is housed to do
The suspension vehicle unit includes at least one roller and a door body lowering amount regulating unit.
In a normal state in which the roller is in contact with the rail, the door body lowering amount regulating portion is located above the immovable member portion by a predetermined distance.
When the roller is melted or deformed by the heat of a fire and the door body is lowered by a predetermined distance, the door body lowering amount regulating portion comes into contact with the portion of the immovable member, so that the door body is lowered. Regulate
By restricting the lowering of the door body and restricting the excessive inclination of the door body when the opening is fully closed, the swallowing portion is maintained in the height direction, and the door tip side of the door body is viewed from the front. Prevents the formation of gaps in the door,
sliding door. When the opening is fully closed, the swallowing portion is formed by fitting the door end side portion of the door body into the recess in the height direction.
The door body lowering amount regulating portion abuts on the portion of the immovable member to regulate the lowering of the door body, and the door end side portion of the door body is accommodated in the recessed portion in the height direction. The swallowing part is maintained,
The sliding door according to claim 1. The sliding door according to any one of claims 1 and 2, wherein the immovable member is a rail member that forms or supports the rail. The suspension vehicle unit includes a first suspension vehicle unit located on the door end side of the door body and a second suspension vehicle unit located on the door end side of the door body.
The door body lowering amount regulating unit is provided on either one or both of the first suspension vehicle unit and the second suspension vehicle unit.
The sliding door according to any one of claims 1 to 3. The suspension wheel unit includes two rollers separated in the opening width direction, and an arm that rotatably supports the two rollers is rotatably supported in the vertical direction at an intermediate portion in the length direction. The door body lowering amount regulating portion is provided at an intermediate portion in the length direction of the arm.
The sliding door according to any one of claims 1 to 4. The sliding door according to any one of claims 1 to 5, wherein the swallowing portion is formed of the door end side portion of the door body and a vertical frame constituting the sliding door frame. The sliding door is a sliding door composed of a first door body and a second door body.
A recess is provided in the door end side portion of the second door body, and when the opening is fully closed, the door end side portion of the first door body is accommodated in the recess in the height direction to swallow. The part is formed,
The door body lowering amount regulating portion abuts on the portion of the immovable member to regulate the lowering of the first door body and / or the second door body, and the door end side portion of the first door body is high. The swallowing portion is maintained by being housed in the recess in the vertical direction.
The sliding door according to any one of claims 1 to 5.

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