JP4750673B2 - Sliding door suspension support device - Google Patents

Description

  The present invention relates to a suspension support device for a sliding door that is attached to an upper portion of a door body in the sliding door device and is supported so as to be able to travel along a guide rail.

  The sliding door device provided at the entrance of a building mainly includes a suspension car that is suspended by a guide rail disposed in the upper part of the building and a lower end of a connecting rod that is connected to the upper part of the vertical axis. The door body is suspended by connecting to a mounting bracket attached to the top of the door. The hanging means of the sliding door by the suspension vehicle and the mounting bracket and the connecting rod connecting the both is provided with a vertical adjustment device by a screw mechanism mainly for adjusting the hanging height of the sliding door (door). Yes. The suspension wheel is generally formed so that the connecting rod is suspended and connected at the center of a base member in which four rollers are arranged two by two at a required interval before and after in the traveling direction. The door body is suspended by connecting the lower end portion of the connecting rod hanging from such a suspension vehicle to a mounting bracket attached to the top of the door body, and the suspension vehicle travels along the guide rail. The sliding door (door) is opened and closed.

  Since the door suspension support device in the conventional sliding door device has the above-described configuration, the four rollers are not always in contact with the guide rail when the suspension vehicle travels on the guide rail. If the level of the guide rail is not good, one of the four rollers is in a floating state, and the other rollers receive an uneven load, so that the running cannot be performed smoothly. In other words, excessive driving force (power) is required for traveling. Therefore, the present applicant has previously proposed a suspension support device using a suspension vehicle in which such a phenomenon is improved so that all rollers abut against the guide rail so as not to cause an unbalanced load ( (See Patent Document 1).

JP-A-2005-47672

  However, for example, when installing a sliding door device at an entrance of an existing building as an automatic door device, when measuring the state of the building side when installing it, in most buildings, the member that forms the opening, for example, the three-sided frame is in its installed state It is currently installed with some inclination with respect to the vertical plane. Therefore, when the attachment member of the door device is attached along the upper member (upper arm) of the opening, some inclination is inevitably generated. For example, the vertical surface with respect to the traveling portion of the sliding door is aligned with the vertical surface of the opening. Is difficult. In particular, to correct and attach only the installation part of the sliding door device to an existing building in a correct state, a delicate correction is applied to the place to be attached to the building, which requires a lot of work. For this reason, when the sliding door is installed according to the prior art, when there is the inclination, a load corresponding to the inclination is irregularly generated in the suspension support device of the sliding door, and therefore, it becomes an overload when opening and closing the sliding door. Inevitable. In other words, there is a problem that opening and closing of the sliding door becomes heavy.

  The present invention has been made to solve the above-described problems, and can automatically adjust the relationship between the sliding door body and the suspension car regardless of the installation state without complicating the structure. It is an object of the present invention to provide a sliding door suspension support device that can smoothly travel without giving an excessive load to the door.

To achieve the above object, the sliding door suspension support device of the present invention comprises:
It is a suspension support device for a sliding door that supports the suspension door body by suspending and supporting the suspension door by connecting with a suspension vehicle that can run along a guide rail provided at the upper part of the sliding door installation location,
The suspension vehicle includes a connecting piece that is independently arranged at a central position , and a pair of left and right support pieces that are pivotally supported at the center on both outer sides of the connecting piece and have rollers disposed at both front and rear ends. Formed by
The fixture to be attached to the top of the sliding door body includes a connecting piece that is rotatably supported on an axis parallel to the traveling direction at the upper central position of the holding body,
The suspension vehicle and the fixture are connected by a connecting rod,
The base of the connecting rod is screwed or inserted into a connecting hole provided perpendicular to the rotation axis of the connecting piece of the fixture, and the tip side is provided on the connecting piece of the suspension wheel. The front and rear rollers are connected in the traveling direction on the suspension vehicle side with respect to the connection rod that connects the suspension vehicle and the fixture by screwing into the female screw connection hole and connects the center of the suspension vehicle and the attachment to suspend the sliding door body. It is possible to move up and down via the support piece, and on the fixture side, the connecting piece is rotationally displaced in a direction crossing the running direction so that the sliding door body can move in a tiltable posture. It is characterized (first invention).

  In the above invention, the fixture has a base piece having a width that fits on the top of the sliding door body and a required length dimension and a mounting seat to the top of the sliding door body, and the connecting piece on the upper side of the base piece. It is provided with a bracket that is rotatably supported on an axis along the traveling direction of the main body, and a connecting hole of a connecting rod is provided in the center of the connecting piece in a direction crossing the rotating axis. Preferred (second invention).

  Further, in the above invention, the fixture has a holding body that is formed by bending an upper portion of a required length with a width embedded in the top of the sliding door body, and both ends in the longitudinal axis direction at the inner center of the holding body. It is composed of a connecting piece that is pivotally supported by a pair of support pieces and is arranged to be rotatable, and a presser plate that is arranged above the holding body, and is provided at the center of the rotatable connecting piece. A mounting screw hole that is perpendicular to the axis and screwed into the connecting rod is provided (third invention).

In the third aspect of the invention, the fixture is fitted into a groove-like fixture mounting frame inserted and embedded in the longitudinal direction at the top of the sliding door body, and the fixture plate is attached to the fixture mounting frame by the press plate. It is preferable to be fixed and held (fourth invention).

  According to the present invention, each roller of the suspension wheel is supported by the support piece that is slidably movable back and forth on both sides with respect to the connecting piece, so that it can be freely displaced according to the condition of the guide rail. Thus, all the rollers can always run in contact with the guide surface of the guide rail. In the fixture attached to the sliding door body that is supported by being suspended by being connected to the suspension vehicle by a connecting rod, the connecting piece connected to the connecting rod can be rotated in a direction intersecting the traveling direction. Therefore, even if the traveling vertical plane passing through the central axis of the upper support structure member provided with the guide rail does not coincide with the traveling vertical plane passing through the central axis of the sliding door, the suspension car and the fixture are attached. The connecting rod to be connected is tilted by the rotational displacement of the connecting piece on the fixture side to maintain the connection, or the sliding door body is slightly tilted to be supported in a state where a suspension load is applied to the connecting rod. Therefore, it is possible to maintain the connection with the suspension vehicle side by the rotational displacement of the connecting piece on the fixture side, and the rollers can run by rolling without lifting from the guide rail with the load acting on the suspension vehicle. Even so, there is an effect that the sliding door can be opened and closed smoothly without applying a large load to the suspension vehicle.

  Next, a specific embodiment of the sliding door suspension support apparatus according to the present invention will be described with reference to the drawings. In addition, 1st Embodiment is shown about what was employ | adopted as the automatic door apparatus, and 2nd Embodiment is each shown about what was employ | adopted as the normal sliding door.

(First embodiment)
FIG. 1 is an overall view of an automatic door device provided with a suspension support device for a sliding door according to the present invention, and FIG. 2 is a front view showing an embodiment of the suspension support device for a sliding door shown in FIG. 3 is a right side view of FIG. 2, FIG. 4 is a plan view of FIG. 2, FIG. 5 is a central longitudinal sectional view of FIG. 2, and FIG. FIG. 7 is a diagram showing a mode of use, and FIG. 8 is an explanatory diagram of an operation mode.

  The case where the sliding door suspension support device 10 of this embodiment is employed in the automatic door device 1 that can automatically open and close the sliding door will be described. As shown in FIGS. 1 and 7, the sliding door suspension support device 10 in the automatic door device 1 can run along the guide rail 3 in the upper support structure member 2 attached to the upper part of the entrance of the building. The suspension car 11 is arranged, the attachment 20 attached to the top 5b of the sliding door 5 that opens and closes the entrance, and the connecting rod 27 that connects the suspension car 10 and the attachment 20 to suspend the sliding door 5. Two sets of the sliding door 5 are provided at predetermined intervals. In the figure, reference numeral 6 denotes a screw drive machine, 6a denotes a screw, 7 denotes a power transmission roller arm, 7a denotes a power transmission roller operated by the screw, and the power transmission roller arm 7 is connected to the suspension support device 10. The sliding door 5 can be opened and closed.

  For example, as shown in the cross-sectional view of FIG. 7, the upper support structure 2 is vertically oriented by connecting the opposing wall surface portions 2a and 2a 'with a predetermined interval at the upper side by a laterally connected portion 2b. It is formed in an open box shape, one wall surface portion 2a is extended upward from the lateral connecting portion 2b and the upper end is bent into a bowl shape, and the upper connecting portion 2c is formed in a bowl shape with the lateral connecting portion 2b. Are parallel to each other, and a space portion 2h is formed in which one side surface (between the laterally connected portion 2b and the upper end portion 2c) is opened. Further, inside the both wall surface portions 2a and 2a 'below the laterally connected portion 2b, there are guide rail portions 3 and 3 having a roller guide surface 3' whose upper surface is symmetrical inward with a predetermined interval, and A pair of guide rail portions 4 and 4 are formed so as to face each other upward and to guide in the horizontal direction at the tip. The upper support structure 2 is made of an aluminum material by extrusion molding.

  On the other hand, as shown in FIG. 2 to FIG. 6, the suspension wheel 11 is a metal plate having a required dimension in which a connecting piece 13 is arranged at the center portion and both longitudinal ends thereof are bent inwardly on both outer sides. A pair of support parts 12 made of metal are attached to each other so as to be pivotable in the vertical direction by pivot shafts 13a and 13a projecting laterally from both sides of the connecting part piece 13 at a central position. Four rollers 14 are attached to these support pieces 12 and 12 by a shaft 15 so as to be rotatable in the front, rear, left, and right directions at a predetermined distance from the pivot shaft 13a. Each of the rollers 14 is supported by both guide rails 3 and 3 formed on the inner side of the upper support structure 2 for each support piece 12 on both sides so as to be able to run. Further, a mounting screw hole 16 for a female screw penetrating in the vertical direction is provided in the center of the connecting piece 13.

  As shown in FIG. 7, the fixture 20 has a mounting seat having a required width with a width dimension that can be accommodated in the top portion 5 b of the sliding door body 5 </ b> A and provided with mounting holes 23 at both longitudinal ends. A pair of brackets 22, 22 having upright portions 22 a at required intervals are integrally fixed by rivets 21 a, 21 a, and the brackets 22, 22 on the base piece 21. Both end shaft portions 24a, 24a are supported by a shaft hole provided in the base portion 21, and the connecting portion piece 24 is rotatably attached with the axial center line parallel to the longitudinal direction of the base portion piece 21. A connecting rod mounting hole 25 is formed in the center of the connecting piece 24 perpendicularly to the rotation axis. A connecting rod insertion hole 26 is provided at the center of the base piece 21 so as to coincide with the connecting rod mounting hole 25 of the connecting piece 24.

  The connecting rod 27 connects the connecting part piece 24 of the fixture 20 attached to the sliding door main body top part 5b and the connecting part piece 13 of the suspension car 11 with the sliding door main body 5A arranged at the open / close traveling position. The length is required to support the suspension, a head portion 27a for rotation operation is formed at the base end, and a shaft body having a required length section from the intermediate portion to the tip end side is a screw shaft 27b. . Reference numeral 28 in the figure denotes a fixing set screw for the connecting rod 27.

  The sliding door suspension support device 10 according to the present embodiment configured as described above will be described with reference to the case where the sliding door suspension support device 10 is used in the automatic door device 1. As shown in FIGS. The upper support structure member 2 is attached along the upper side and the suspension wheel 11 is arranged on the guide surfaces 3 ′ and 3 ′ of the guide rails 3 and 3 in the upper support structure member 2. On the other hand, a sliding door body 5A is disposed below the guide rails 3 and 3 on which the suspension wheel 11 of the upper support structure member 2 is supported, and a connecting portion of the fixture 20 attached to the top portion 5b of the sliding door body 5A. The sliding door body 5 </ b> A is suspended by connecting the piece 24 and the connecting piece 13 of the suspension wheel 11 with a connecting rod 27.

  When the sliding door main body 5A is suspended and supported via the connecting rod 27 on the suspension car 11 supported on the guide rails 3 and 3 attached to the upper support structure member 2 attached to the building side in this way, for example, the suspension car 11 When the guide surface 3 ′ of the guide rails 3 and 3 on which the vehicle travels is not aligned in a horizontal state due to the mounting state of the upper support structural member 2 with respect to the building, as shown in FIG. There is a deviation between the axis Q of the fixture 20 at the top 5b of the sliding door body 5A and the axis P of the upper support structure member 2 (guide rail). However, the connecting rod 27 that connects the suspension wheel 11 and the fixture 20 has the connecting piece 24 on the fixture 20 side at the sliding door main body top 5b along the traveling direction (longitudinal direction) axis of the sliding door main body 5A. Since the support axes of the 20 brackets 22 and 22 are supported in parallel and are rotatably mounted in a direction intersecting with the support axis (axis Q), they follow the displacement on the suspension wheel 11 side. To maintain the connection. Therefore, as long as an extreme inclination does not occur, the suspension vehicle 11 and the sliding door main body 5A travel while being connected to the suspension vehicle 11 in the state of the arrangement, and the door can be opened and closed without difficulty.

  At this time, the connection posture of the connecting rod 27 with respect to the connecting piece 13 of the suspension wheel 11 is such that the tip of the connecting rod 27 is coupled to the connecting hole 16 provided in the connecting piece 13 by the screwing of the screw portion 27b. Therefore, the connecting fixture 20 is connected in a state where the axis of the connecting rod 27 is aligned with the vertical line passing through the center of the suspension vehicle 11, and according to the displacement generated between the suspension vehicle 11 and the fixture 20. In response to the inclination of the connecting rod 27 due to the rotational displacement of the supporting shaft portions 24a, 24a in the shaft holes of the brackets 22, 22 supported by the connecting portion piece 24 attached thereto. Thus, since the sliding door main body 5A is connected via the suspension wheel 11 and the fixture 20, all the rollers 14 of the suspension wheel 11 are guided by the guide rail 3 of the guide rail 3 by the suspension force acting on the connecting rod 27. It is possible to run while maintaining the state of being in contact with Accordingly, the door (sliding door 5) can be smoothly opened and closed without a large unbalanced load acting on the suspension wheel 11. Even if the attachment portion is inclined between the guide rail 3 (upper support structure member 2) or the sliding door main body 5A, the connecting portion 24 attached to the fixture 20 intersects the traveling direction. Thus, the sliding door 5 can be smoothly opened and closed without hindering the traveling of the suspension vehicle 11 because the connecting rod 27 is formed to be rotatable. Further, even if the building is tilted on the mounting side of the upper support structure member 2 as described above due to an earthquake, the connecting piece 24 in the mounting tool 20 that connects the suspension wheel 11 and the sliding door body 5A is rotated. Accordingly, the sliding door 5 can be opened and closed smoothly without any hindrance.

(Second Embodiment)
Next, an embodiment in which the suspension support device for sliding doors according to the present invention is adopted in a normal suspension type sliding door will be described.

  9 is a front view of a suspension support device for a sliding door according to the second embodiment, FIG. 10 is a left side view of FIG. 9, and FIG. 11 is a front view showing a single suspension support device. 11 is a plan view of FIG. 11, FIG. 13 is a central sectional view of the suspension support device, and FIG. 14 is a sectional view taken along line BB of FIG.

  The sliding door suspension support device 10A of this embodiment is substantially the same in basic configuration as that of the above embodiment, but the sliding door 5 is partially different in that it is configured to be applied to one that can be manually opened and closed. It is to make. Therefore, the description will be given with emphasis on the different parts of the configuration. Note that the same or similar components as those in the first embodiment are denoted by the same reference numerals as those described above, and detailed description thereof is omitted.

  As shown in FIGS. 9 and 10, the suspension support device 10 </ b> A for the sliding door includes a suspension vehicle 11 that can travel along the guide rail 3 in the upper support structure member 2 </ b> A attached to the upper part of the entrance of the building, The sliding door 5 includes a fixture 30 that is embedded in the top portion 5b of the sliding door 5 and a connecting rod 40 that connects the suspension wheel 11 and the fixture 30 to suspend the sliding door 5. Two sets are provided at both ends in the (direction).

  In the upper support structure 2A in this embodiment, the upper portions are connected by laterally connecting portions 2b, and wall surface portions 2a, 2a are arranged on both sides at a required interval, and a predetermined interval is provided from the inside of both wall surface portions 2a, 2a. In addition, guide rail portions 3 and 3 having a roller guide surface 3 ′ as the upper surface symmetrically inwardly projecting, and are formed in a downward-opening cross-sectional structure. Then, as shown in FIG. 10, the upper support structure 2 </ b> A is attached with a wood screw 8 a or the like along the lower surface of the head 8 in parallel when there are two sliding doors 5. In addition, the sliding door 5 of this embodiment has a structure in which the lower part is guided by the lower guide rail and the roller device 9 (but is not limited to this).

  In the suspension wheel 11, the support part pieces 12, 12 each having rollers 14 disposed on the front and rear sides are swung on both sides of the connecting part piece 13 arranged in the center part, almost the same as in the embodiment. It is freely pivoted.

  The fixture 30 includes a holding body 31 formed by bending a metal plate having a required length and a width embedded in the tops of both ends in the length direction (width direction) of the sliding door body 5A, and the holding body. A connecting part piece 33 pivotally supported by a pair of support part pieces 32, 32 at both ends in the longitudinal axis direction at the inner center of 31, and a support part piece 32 held by the holding body 31. , 32 and the presser plate 37 movably covering the upper part of the connecting piece 33 (see FIG. 13). The holding body 31 is a thin metal plate that is bent and formed into a flat U-shape when viewed from the side with the required dimensions at the bottom and side surfaces at both ends, and the upper surface and the side surfaces are open. The piece 33 and a pair of support part pieces 32 and 32 arranged before and after the piece 33 are inserted. A bearing hole 34 and a fixing hole 34 ′ are formed on one axis of the support piece 32 on one axis, and the support shaft 33 a of the connecting piece 33 located at the center is inserted and supported in the bearing hole 34. The connecting piece 33 is rotatable on the support axis.

  Each support piece 32 is fastened and fixed to the bottom of the holding body 31 by a rivet 36 at the bottom of a screw hole 35 perpendicular to the axis passing through the bearing hole 34. A hexagonal bolt 38 inserted from the mounting plate 37 positioned is screwed and fixed. In addition, coil springs 38a are interposed between the lower surface of the mounting plate 37 and the upper surfaces of the support pieces so as to push up the mounting plate 37.

  The connecting piece 33 is provided with a mounting screw hole 39 at the center thereof, which is screwed with the connecting rod 40 at right angles to the axis. The connecting piece 33 and the connecting piece 13 of the suspension wheel 11 are connected by a connecting rod 40. The connection rod 40 is formed with a rotation operation rod 41 having an outer periphery for rotation operation formed in, for example, a hexagonal shape at an intermediate position. The rotation operation rod 41 has a right screw shaft 42 on one side and a left screw shaft on the other side. 43 is integrally connected, and one of the screw shafts 42 and 43 is in the screw hole 39 of the connecting piece 33 on the fixture 30 side, and the other is in the central screw hole 16 in the connecting piece 13 of the suspension wheel 11. Each is connected by screwing at the same time. Reference numeral 45 in the figure denotes a fixing nut.

  As shown in FIGS. 9 and 10, the top portion 5 b of the sliding door body 5 </ b> A to which the attachment tool 30 is attached has a long-length attachment provided with an inward groove portion into which the holding body 31 can be inserted in the longitudinal direction. A fixture mounting frame 30a is embedded along the upper edge of the sliding door body. The fixture 30 is inserted into the fixture mounting frame 30a from the end of the fixture mounting frame 30a, and the mounting plate 37 is mounted on the fixture mounting frame 30a. It fits into the upper opening of the frame 30a, tightens the bolts 38, 38 by screwing them into the screw holes of the connecting piece 33 located inside the holding body 31, and protrudes inward at the upper part of the groove of the mounting frame 30a. The mounting plate 37 is pressed and fixed to the portion. By doing so, the fixture 30 is embedded and fixed in the sliding door main body 5 </ b> A, and is suspended and supported by the suspension wheel 11 by the connecting rod 40. In addition, the end face cover 30b is screwed to one end of the fixture 30 at the end of the fixture mounting frame 30a to adjust the appearance. The mounting frame 30a is fixed to the upper arm of the sliding door body 5A with a wood screw so as not to be displaced.

  In the embodiment configured as described above, as shown in FIGS. 9 and 10, when the sliding door body 5 </ b> A suspended by the suspension vehicle 11 via the connecting rod 40 is opened and closed, As described, for example, because the mounting state of the building 8 on the building side is not normal and is in some inclined state, the upper support structure member 2A provided along the lower surface of the building 8 is a sill (lower guide). It is in a mounting state that is not located on the same vertical plane as the rail), and is connected to a suspension plane 11 that is guided and supported along the vertical plane passing through the center of suspension of the upper support structure member 2A and the guide rail 3 located inside the vertical plane. Even if there is a deviation from the vertical plane passing through the suspension center of the sliding door main body 5A supported by suspension by the attachment 30 connected via the flange 40, the connecting rod 40 is attached to the attachment 30 side. Communicating Since the piece 33 is provided so as to be rotatable in a direction crossing the traveling direction, the sliding door body 5A maintains a vertical state by its own weight acting on the sliding door body 5A, and the connecting rod 40 is tilted and suspended. The suspension load of the sliding door main body 5 </ b> A acts on the car 11. Accordingly, the four rollers 14 of the suspension wheel 11 can roll and run while abutting against the guide surface 3 ′ of the guide rails 3 and 3 without being lifted, and thus run smoothly without causing an uneven load. And the opening / closing operation of the sliding door is not impaired.

  In this embodiment, by rotating the rotary operation rod 41 provided at the intermediate position of the coupling rod 40 from the outside using a tool such as a spanner, the screw shaft portion connected in the vertical direction is a right screw. Since it is formed as a left-hand thread, the threaded portion of the suspension wheel 11 side and the attachment tool 30 side can be operated simultaneously, and the vertical height can be easily adjusted with a slight rotation.

Overall view of an automatic door device provided with a suspension support device for a sliding door according to the present invention The front view which shows one Embodiment of the suspension support apparatus of the sliding door shown in FIG. Right side view of FIG. Plan view of FIG. Center vertical section of FIG. AA sectional view of FIG. Diagram showing the mode of use Illustration of operation mode The front view of the suspension support apparatus of the sliding door of 2nd Embodiment. Left side view in FIG. Front view showing a single suspension support device Plan view of FIG. Center enlarged sectional view of the suspension support device BB sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic door apparatus 2, 2A Upper support structure member 3 Guide rail 3 'Roller guide surface 5 Sliding door 5A Sliding door main body 10, 10A Sliding door hanging support apparatus 11 Hanging wheel 12, 32 Support part piece 13, 24, 33 Connection part piece 13a Pivot shaft 14 Roller 16 Mounting screw hole 20, 30 Mounting tool 21 Base piece 22 Bracket 24a Connecting piece piece shaft 27, 40 Connecting rod 30a Fixing attachment frame 31 Holding body 33a Connecting piece support shaft 34 Bearing hole

Claims (4)

It is a suspension support device for a sliding door that supports the suspension door body by suspending and supporting the suspension door by connecting with a suspension vehicle that can run along a guide rail provided at the upper part of the sliding door installation location,
The suspension vehicle includes a connecting piece that is independently arranged at a central position , and a pair of left and right support pieces that are pivotally supported at the center on both outer sides of the connecting piece and have rollers disposed at both front and rear ends. Formed by
The fixture to be attached to the top of the sliding door body includes a connecting piece that is rotatably supported on an axis parallel to the traveling direction at the upper central position of the holding body,
The suspension vehicle and the fixture are connected by a connecting rod,
The base of the connecting rod is screwed or inserted into a connecting hole provided perpendicular to the rotation axis of the connecting piece of the fixture, and the tip side is provided on the connecting piece of the suspension wheel. The front and rear rollers are connected in the traveling direction on the suspension vehicle side with respect to the connection rod that connects the suspension vehicle and the fixture by screwing into the female screw connection hole and connects the center of the suspension vehicle and the attachment to suspend the sliding door body. It is possible to move up and down via the support piece, and on the fixture side, the connecting piece is rotationally displaced in a direction crossing the running direction so that the sliding door body can move in a tiltable posture. A hanging support device for a sliding door.   The mounting tool has a width that fits on the top of the sliding door body and a required length dimension, and a base piece having a mounting seat to the top of the sliding door body, and a connecting piece on the upper side of the base piece. 2. A bracket comprising a bracket rotatably supported on an axis along a direction, wherein a connecting hole of a connecting rod is provided at a central portion of the connecting piece in a direction crossing the rotating axis. Suspension support device for sliding doors.   The fixture has a width that is embedded in the top of the sliding door body and is bent to open the upper part of the required length, and a pair of support parts at both ends in the longitudinal axis direction at the center inside the holder. The connecting part piece that is pivotally supported and is rotatably arranged, and a presser plate that is arranged above the holding body, and is perpendicular to the axis line at the center of the rotatable connecting part piece. The suspension support device for a sliding door according to claim 1, wherein a mounting screw hole is provided for screwing with the connecting rod.   The fixture is fitted to a groove-shaped fixture mounting frame inserted and embedded in the longitudinal direction at the top of the sliding door body, and fixed to the fixture mounting frame by the pressing plate. Item 4. The hanging support device for sliding doors according to Item 3.

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