JP2009228388A - Sliding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door device which makes possible smooth open/close operation of a sliding door even when it is a sliding door of which the rail provided above a sliding-door frame member is provided only outside of a shutter box. <P>SOLUTION: The sliding door device includes the sliding-door frame member 2, the sliding door 4, and the shutter box 3. The sliding door 4 moves in the sliding-door frame member 2, and the shutter box 3 is formed on one side of the sliding-door frame member 2. The sliding door device is provided with a sash wheel 5. the rail 6, and a rotor 7. The sash wheel 5 is arranged on the top surface 4a on the door-tip side of the sliding door 4, and the rail 6 supports the sash wheel 5, which is arranged outside the shutter box 3, above the sliding-door frame member 2. The rotor 7 used for supporting the load of the sliding door 4 is arranged in a position on the floor surface which at least corresponds to an overlapping part P between the sliding door 4 in a fully-closed position and the sliding door 4 in a fully-opened position, and is arranged in a position which is closer to the door-end side than the barycenter position G of the sliding door 4 in the fully-opened position of the sliding door 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sliding door device, and more particularly to a sliding door device that can stably open and close a sliding door without arranging a rail that supports a door car disposed on the upper surface of the sliding door in the door pocket. It is.

  Conventionally, in a hanging type sliding door that moves in a sliding door frame member, it is necessary to install a rail that supports the door cart arranged on the upper surface of the sliding door to the inside of the door pocket that houses the sliding door. There was a problem that it took a long time and work efficiency was poor.

For this reason, the sliding door apparatus shown in FIG. 7 is proposed (for example, refer patent document 1 and 2).
The sliding door device 20 includes a sliding door frame member 21, a door pocket 22 formed on one side of the sliding door frame member 21, and is accommodated in the door pocket 22. And a rail 23 for supporting a suspension car 31 laid above the opening W which is the exterior of the door pocket 22 of the sliding door frame member 21, and a door above the opening W. A guide roller 24 is provided on the bottom side to prevent the sliding door from swinging when opening and closing.

In the sliding door device 20, a support rail 33 that supports the door pulley 32 is laid on the floor surface in the door pocket 22 that is behind the floor surface of the opening W, and guides the movement of the sliding door 30. ing.
JP 2007-315017 A JP 2006-194048 A

By the way, in the structure which arrange | positions the rail 23 which supports the suspension vehicle 31 in the door pocket 22, there existed a problem that the arrangement structure of the rail 23 for attaching / detaching the rail 23 became complicated.
Further, if the door pulley 32 travels on the support rail 33 laid on the floor like the sliding door device 20, the door pulley 32 may derail from the support rail 33, and the door pocket is opened when the sliding door 30 is opened and closed. There is a problem that when dust enters the inside 22, the dust accumulates on the support rail 33, which may hinder the opening / closing operation of the sliding door 30.

  In view of the problems of the conventional sliding door device, the present invention can smoothly open and close the sliding door even in a sliding door device in which the rail laid above the sliding door frame member is laid only outside the door pocket. An object is to provide a sliding door device.

  In order to achieve the above object, a sliding door device of the present invention is a sliding door device comprising a sliding door frame member, a sliding door that moves within the sliding door frame member, and a door bag formed on one side of the sliding door frame member. At the overlapping part of the sliding door at the fully-closed position and the sliding door at the fully-opened position at least on the floor, and the rail that supports the door-wheel placed outside the door pocket above the sliding door frame member And a rotating body for supporting a load of the sliding door disposed at a position closer to the door butt than the center of gravity of the sliding door at the corresponding position and the fully open position of the sliding door.

  In this case, the rotating body disposed at a position corresponding to the overlapping portion of the sliding door at the fully closed position and the sliding door at the fully open position, and the rotation disposed at a position closer to the door butt than the gravity center position of the sliding door at the fully open position of the sliding door. The distance to the body can be made smaller than the distance from the center of gravity of the sliding door to the door butt side end.

  Moreover, the said rotary body can be arrange | positioned so that a movement to an up-down direction is possible via a buffer mechanism.

  Furthermore, a guide portion for guiding the rotating body can be provided on the door bottom side of the bottom surface of the sliding door.

According to the sliding door device of the present invention, the door wheel disposed on the top surface of the sliding door, the rail supporting the door wheel laid outside the door pocket above the sliding door frame member, and at least the fully closed position of the floor surface Since there is a rotating body for supporting the load of the sliding door disposed at a position corresponding to the overlapping portion of the sliding door and the sliding door at the fully open position and at the position of the door butt side of the center of gravity of the sliding door at the fully open position of the sliding door, The sliding door is supported by a door wheel disposed on the top surface and a rotating body for supporting the load of the sliding door disposed on the floor surface, and moves stably in the sliding door frame member. In addition, since the load of the sliding door is supported by the rotating body, there is no problem in the opening / closing operation of the sliding door even if dust enters the door pocket.
In addition, since the rotating body for supporting the load of the sliding door is disposed at a position closer to the door butt than the gravity center position of the sliding door at the fully open position of the sliding door, the sliding door may tilt when the sliding door is moved to the fully open position. The sliding door can be supported so that there is no such thing.

  A rotating body disposed at a position corresponding to the overlapping portion of the sliding door at the fully closed position and the sliding door at the fully open position; and a rotating body disposed at a position closer to the door butt than the center of gravity of the sliding door at the fully open position of the sliding door; When the distance of the sliding door is made smaller than the distance from the center of gravity of the sliding door to the edge of the door butt, the rotating body is arranged at a position corresponding to the overlapping part of the sliding door in the fully closed position and the sliding door in the fully open position. Immediately before reaching the position of the sliding door, the bottom surface of the sliding door is supported by a rotating body disposed at a position closer to the sliding edge than the center of gravity of the sliding door at the fully open position of the sliding door. It won't tilt out of balance.

  Further, when the rotating body is disposed so as to be movable in the vertical direction via the buffer mechanism, the buffer mechanism moves up and down due to the movement of the sliding door and the distance between the bottom surface of the sliding door and the floor surface. It can absorb and open and close the sliding door smoothly.

  In addition, when the guide unit for guiding the rotating body is provided on the door bottom side of the bottom surface of the sliding door, even if the bottom surface on the door bottom side of the sliding door is shaken during the movement of the sliding door, the rotating body is It is surely guided to the bottom surface of the sliding door and can support the load of the sliding door.

  Embodiments of the sliding door device of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the sliding door device of the present invention.
The sliding door device 1 includes a sliding door frame member 2, a sliding door 4 that moves within the sliding door frame member 2, and a door pocket 3 formed on one side of the sliding door frame member 2. A door 6 disposed in 4a, a rail 6 supporting the door 5 laid outside the door pocket 3 above the sliding door frame member 2, a sliding door 4 in a fully closed position, and a sliding door 4 in a fully open position on the floor. And a rotating body 7 for supporting the load of the sliding door 4 disposed at a position closer to the door butt than the center of gravity G of the sliding door 4 at the position corresponding to the overlapping portion P and the fully open position of the sliding door 4.

  The rotating body 7 includes a rotating body 7a disposed at a position corresponding to the overlapping portion P of the sliding door 4 in the fully closed position and the sliding door 4 in the fully open position, and the center of gravity G of the sliding door 4 in the fully open position. The rotating body 7b can support the load of the sliding door 4 before the center of gravity position G of the sliding door 4 is closer to the door bottom side than the rotating body 7a. It is preferable to arrange the position, that is, the distance between the rotating body 7a and the rotating body 7b so as to be smaller than the distance from the gravity center of the sliding door to the door butt side end.

  In addition, the configuration of the rotating body 7 is not particularly limited, but in the present embodiment, it is configured by a flange F having a U-shaped cross section and a wheel K that is rotatably attached to the flange F. Yes.

The rotating body 7 is a lower frame disposed on a floor surface of the door pocket 3 formed on one side of the sliding door frame member 2 and a position corresponding to an overlapping portion P between the sliding door 4 in the fully closed position and the sliding door 4 in the fully open position. 8 is attached.
The lower frame 8 is composed of a fixed frame 8 a having a U-shaped cross section and an attachment frame 8 b having a convex portion as an attachment portion of the rotating body 7.
The fixed frame 8a is fixed in advance to the floor surface of the door pocket 3, and the mounting frame 8b is opened to the mounting frame 8b and the positioning pins C arranged to protrude from the fixed frame 8a as shown in FIG. The mounting frame 8b is positioned at a desired location by a so-called daruma hole D in which a large-diameter portion and a small-diameter portion are continuously formed, and is attached to the floor surface by a fastening means B such as a screw at an appropriate position outside the door pocket 3. I try to fix it.
With the above structure, the attachment frame 8b can be easily detached and pulled out from the fixed frame 8a simply by removing the fastening means B outside the door pocket 3. For example, even if the rotating body 7 is damaged, it can be easily replaced. Can do.

In addition, the rotating body 7b is disposed at a position closer to the door butt than the center of gravity position G of the sliding door 4 in the fully open position of the sliding door 4 that does not normally support the sliding door 4, via the buffer mechanism S. It is preferable to arrange it so as to be movable in the vertical direction.
The buffer mechanism S is not particularly limited as long as the flange F attached to the attachment frame 8b can be moved in the vertical direction. For example, a spring or the like disposed between the flange F and the attachment frame 8b. The elastic body which consists of can be used.
Thereby, even if the distance between the bottom surface and the floor surface of the sliding door 4 varies, the variation can be absorbed by the buffer mechanism S and the sliding door 4 can be reliably supported by the rotating body 7b.

On the lower surface of the sliding door 4, a rail frame 9 that contacts the rotating body 7 is disposed.
The rail frame 9 can be a lower frame of the frame of the sliding door 4, and a rail portion 9 a that abuts on the wheel K of the rotating body 7 protrudes and the load of the sliding door 4 is transferred by the rotating body 7 via the rail portion 9 a. It is intended to be supported. In this case, as shown in FIG. 2, the wheel K can stabilize the movement of the sliding door 4 without derailing from the rail portion 9a or causing a shift by using a wheel with a hook.

Moreover, it is preferable to provide the guide part 10 which guides the rotary body 7b in the door bottom side of the bottom face of the sliding door 4. As shown in FIG.
The configuration of the guide portion 10 is not particularly limited. In the present embodiment, as shown in FIG. 4, the end portion of the rail portion 9a of the rail frame 9 is connected to the bottom inclined portion 10a, the side inclined portion 10b, 10b is configured.
Thereby, even if the bottom surface of the sliding door 4 on the door bottom side is shaken, the rotating body 7 b is reliably guided to the bottom surface of the sliding door 4 by the guide portion 10 and can support the load of the sliding door 4.

  The shape of the rail 6 laid outside the door pocket 3 above the sliding door frame member 2 is not particularly limited as long as the rail 6 is configured to support the door 5 disposed on the top surface 4a on the door tip side of the sliding door 4. In an Example, as shown in FIG. 5, it is set as the shape of the cross-section C-shape which forms the door pulley receiving part 6a which protrudes toward inner side from the downward both ends.

  Next, the opening / closing operation | movement of this sliding door apparatus 1 is demonstrated.

  First, when the sliding door 4 is in the fully closed position, the sliding door 4 is supported by the door wheel 5 disposed on the top surface 4a on the door tip side and the rotating body 7a (see FIG. 6A).

The sliding door 4 starts to move toward the fully open position, and the door bottom side bottom surface of the sliding door 4 is supported by the rotating body 7b immediately before the gravity center position G of the sliding door 4 reaches the position of the rotating body 7a (FIG. 6 ( b)). Accordingly, the sliding door 4 moves stably without being tilted during the movement of the sliding door 4.
Further, at this time, the rotating body 7b is disposed so as to be movable in the vertical direction via the buffer mechanism S, and a guide portion 10 for guiding the rotating body 7b is provided on the door bottom side of the bottom surface of the sliding door 4. Therefore, even if the bottom surface on the door bottom side of the sliding door 4 swings, the sliding door 4 is reliably supported by the rotating body 7b.

Next, from this state, the sliding door 4 is moved to the fully open position, and the opening operation of the sliding door 4 is finished (see FIG. 6C).
At this time, since the rotating body 7b is disposed at a position closer to the door butt than the gravity center position G of the sliding door 4 in the fully open position, it is possible to maintain a stable state without the sliding door 4 tilting.

  And the sliding door 4 can be moved to a fully closed position by moving the sliding door 4 in the reverse direction to the said point.

  As mentioned above, although the sliding door apparatus of this invention was demonstrated based on the Example, this invention is not limited to the structure described in the said Example, The structure is suitably changed in the range which does not deviate from the meaning. It is something that can be done.

  The sliding door device of the present invention has a characteristic that, when the rail laid above the sliding door frame member is laid only outside the door pocket, it does not interfere with the opening / closing operation of the sliding door even if dust enters the door pocket. Since it has, it can be used suitably for the sliding door apparatus of various uses besides the sliding door apparatus for schools.

It is front sectional drawing in the closed position which shows one Example of the sliding door apparatus of this invention. It is a side view of the rotary body of the sliding door apparatus, (a) shows XX sectional drawing of FIG. 1, (b) shows YY sectional drawing of FIG. It is the top view and front view of the rotary body of the sliding door apparatus, (a) shows the top view of a notch, (b) shows the front view of a notch, respectively. It is explanatory drawing of the guide part provided in the door bottom side of the lower surface of a sliding door, (a) is a side view of a notch partially, (b) is TT sectional drawing of (a), (c) is ( A VV sectional view of a) is shown respectively. It is ZZ sectional drawing of FIG. It is explanatory drawing of the opening / closing operation | movement of the sliding door apparatus, (a) is a state in which a sliding door is in a fully-closed position, (b) is a state in the middle of moving a sliding door toward a fully open position, (c) is a sliding door fully open. Each position is shown. It is a front view in the closed position which shows the conventional sliding door apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door apparatus 2 Sliding door frame member 3 Door bag 4 Sliding door 5 Door car 6 Rail 7 Rotating body 10 Guide part G Center of gravity position S Sliding mechanism

Claims (4)

  In a sliding door device comprising a sliding door frame member, a sliding door that moves within the sliding door frame member, and a door pocket formed on one side of the sliding door frame member, a door wheel disposed on the top surface of the sliding door on the door end side, and a sliding door frame From the center of gravity of the sliding door at the fully open position of the sliding door and at the position corresponding to the overlapping part of the sliding door at the fully closed position and the fully open position, the rail that supports the door wheel laid outside the door pocket above the member And a rotating body for supporting the load of the sliding door disposed at the position on the door bottom side.   The distance between the rotating body arranged at the position corresponding to the overlapping part of the sliding door in the fully closed position and the sliding door in the fully opened position, and the rotating body arranged at a position closer to the door butt than the center of gravity of the sliding door in the fully open position of the sliding door The sliding door device according to claim 1, wherein the sliding door device is made smaller than a distance from a gravity center of the sliding door to a door butt side end.   The sliding door device according to claim 1, wherein the rotating body is disposed so as to be movable in a vertical direction via a buffer mechanism.   The sliding door device according to claim 1, 2 or 3, wherein a guide part for guiding the rotating body is provided on a door bottom side of the bottom surface of the sliding door.

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