JP2507836Y2 - Oversliding door lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a lifting device for an oversliding door, for example, a device for opening and closing an opening of a factory, a warehouse, a hangar or the like.

(Prior Art) Conventionally, this type of lifting device for an oversliding door has, as described in, for example, Japanese Utility Model Laid-Open No. 62-32190, via upper and lower guide rollers between left and right guide rails. A structure is known in which a sliding door is provided so as to be movable up and down, and a drum for winding and rewinding a wire for moving the sliding door up and down is provided above the left and right guide rails.

Further, as described in Japanese Utility Model Publication No. 63-46625, roller shafts each having a roller are fitted in bearing members provided at both ends of an upper frame of a long panel so that the roller shafts can be moved back and forth. A step portion having a predetermined width is circumferentially provided on the peripheral surface of the fitting portion, and a screw insertion tip end of a screw screwed from the top surface of the upper frame is projected into the step portion of the roller shaft through the bearing member. There is known a structure in which the shaft is prevented from slipping out and the roller shaft can be moved back and forth in the axial direction within the width of the stepped portion.

(Problems to be solved by the invention) In the structure disclosed in Japanese Utility Model Laid-Open No. 62-32190, the sliding doors are moved up and down along the left and right guide rails by winding or unwinding the left and right drums. However, at this time, the left and right vertical rails may be tilted to one side in the left-right direction due to the installation error of the left and right guide rails and fluctuations after installation, and the height of the left and right horizontal rails may vary. If there is a difference or if there is a difference in winding the left and right wires due to the installation error of the left and right drums or fluctuations after installation, the sliding door tilts in that direction and shifts to one side,
There is a problem that the guide rollers in the inclined direction are pressed against the guide rails, and therefore the sliding door cannot be smoothly moved up and down. For this reason, there is a problem that high accuracy is required at least during installation.

Further, in the structure described in Japanese Utility Model Publication No. 63-46625, the roller shaft can be moved back and forth in the axial direction within the width of the stepped portion of the roller shaft where the screw insertion tip of the screw is projected, and the panel shutter can be mounted. In this case, the installation work is facilitated by moving the roller shaft back and forth in the axial direction according to the situation at the installation site. Since the shaft cannot be adjusted back and forth in the axial direction, the panel shutter may be difficult to install due to the installation error of the left and right guide rails depending on the width of the stepped part of the roller shaft. The panel shutter is easy to move to the left and right due to the width of the stepped portion of the shaft, and when the panel shutter is tilted, the roller of the roller shaft is pressed against the guide rail, Sometimes a situation that can not be smoothly up and down occurs, there is a problem in that.

Therefore, the present invention has been made in view of such a problem, and the sliding door can always be smoothly moved up and down along the left and right guide rails. Even so, it is an object of the present invention to provide an over-sliding door elevating / lowering device that can be easily adjusted so that the sliding door can be smoothly moved up and down, and thus easy to adjust and open / close.

(Means for Solving the Problems) The lifting device for an oversliding door of the present invention is
Guide rails arranged opposite to each other, a sliding door that can be raised and lowered by stacking a number of door panels that open and close the opening between the left and right guide rails, and both ends of each door panel of this sliding door. A plurality of hinges having guide rollers that are connected to each other and engage with the left and right guide rails to guide the sliding door up and down, and the hinges attached to both ends of the uppermost and lowermost door panels of the sliding door. A roller support having guide rollers that engage with guide rails to guide the sliding door up and down, and the roller supports attached to both ends of the uppermost and lowermost door panels are The mounting board to be attached to the door panel, the bearing pieces protruding in parallel on both sides of this mounting board, and the shafts on both sides. A roller shaft movably mounted on one side of the roller shaft so as to move back and forth toward the guide rail, the guide roller rotatably provided at the outer end of the roller shaft and engaged with the guide rail, and the inner end of the roller shaft. And a stopper which is screwed to a screw shaft portion formed in the portion so as to be adjustable in advance and retreat, and which abuts against the bearing piece located inside the sliding door to stop the lateral movement of the sliding door.

(Operation) In the oversliding door lifting device of the present invention, when the sliding door is lifted and lowered, the sliding door is surely regulated in position by the guide rollers and the stoppers at both ends of the sliding door, and moves in the left and right directions. It can be lifted and lowered smoothly.

Also, if the vertical rails of the left and right guide rails are inclined to one side in the left-right direction, there is a height difference between the left and right horizontal rails, or if there is a winding difference between the left and right wires. The bearing piece located inside the sliding door is brought into contact with the stopper on the opposite side of the inclination direction. Therefore, the sliding door is prevented from inclining greatly in the inclining direction, the guide roller in the inclining direction is prevented from coming into pressure contact with the guide rail engaged with the guide roller, and the sliding door is smoothly moved up and down.

Also, when installing a sliding door between the left and right guide rails, stoppers for the roller supports connected to both ends of the uppermost and lowermost door panels of the sliding door are installed as required. By rotating the roller shaft with respect to the screw shaft portion of the roller shaft to adjust the roller shaft in the axial direction,
This guide roller is easily adjusted and set in a position where it engages with the left and right guide rails. Therefore, the sliding door can be easily mounted between the left and right guide rails so that the sliding door can be smoothly moved up and down.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a guide rail that is disposed so as to face left and right, and the left and right guide rails 1 extend rearward from a vertical rail portion 2 and an upper end portion of the vertical rail portion 2. And a horizontal rail portion 3 having a substantially C-shaped cross section, and the guide ports 4 formed on the left and right guide rails 1 face each other and open inward.

Further, 5 is an opening 6 between the left and right guide rails 1.
The sliding door 5 has a large number of door panels 7 which are vertically stacked and arranged side by side. Further, among the plurality of door panels 7, upper roller supports 8 are attached to both inner ends of the uppermost door panel 7. Further, lower roller supports 9 are attached to both inner ends of the lowermost door panel 7 among the plurality of door panels 7. Further, the overlapping portions at the inner ends of each door panel 7 between the uppermost and lower door panels 7 have a plurality of hinges 10.
Is rotatably connected at.

The upper roller support 8 and the lower roller support 9
Is a mounting board attached to both inner ends of the door panel 7.
Bearing plates 12 are provided on both sides of the mounting substrate 11 so as to face each other in parallel. In addition, the bearing pieces 12 on both sides are rotatable toward the guide rail 1,
A roller shaft 13 is mounted so as to be movable back and forth in the axial direction.

The outer end of the roller shaft 13, that is, the outer end of the roller shaft 13 protruding from the left bearing piece 12 in FIG. 2 toward the guide rail 1 is engaged with the left and right guide rails 1. The roller 14 is fixed. Further, a screw shaft portion 16 having a screw groove 15 on the outer peripheral portion is formed on the inner end portion of the roller shaft 13, and the right bearing piece in FIG.
A stopper 17 made of a double nut is screwed to the screw shaft portion 16 protruding inward from 12 so as to be adjustable in forward and backward directions.

Further, a roller collar 18 is rotatably and axially advanceable and retractable is attached to the roller shaft 13 between the guide roller 14 and the left bearing piece 12 so as to move between the left and right bearing pieces 12. A bearing sleeve 19 is provided through which the roller shaft 13 is inserted.

Next, the plurality of hinges 10 that interconnect the overlapping portions of the inner end portions of each door panel 7 in the middle portion are provided with a pair of mounting boards 10a, which are attached to the overlapping portions of the inner end portions of each door panel 7, respectively. 10b, the pair of mounting boards 10a, 10b
Bearing pieces 20 are projected in parallel to each other on both sides of
Between the bearing pieces 20 facing each other, the pair of mounting substrates 10a, 10
A hinge shaft 10c serving as a rotation center of b is rotatably attached. A roller shaft 21 is rotatably and axially movably mounted on the opposing bearing pieces 20. The outer end of the roller shaft 21 is engaged with the left and right guide rails 1. The guide roller 22 is attached.

Next, the lower ends of the wires (not shown) are fixed to the lower roller supports 9 on both sides attached to both inner ends of the lowermost door panel 7, and the wires on both sides are left and right as described above. It is adapted to be wound and unwound by a drum (not shown) provided above the guide rail 1. Then, the sliding door 5 is moved up and down along the left and right guide rails 1 by the wires on both sides, and the opening 6 is opened and closed.

 Next, the operation of the above embodiment will be described.

When the right and left drums are rotated in the winding or unwinding direction of the respective wires, the sliding doors 5 suspended by the wires on both sides by the rotating direction of the drums are moved to the left and right by the guide rollers 14 and 22 on the left and right. It is moved up and down along the guide rail 1 and the opening 6 is opened and closed by the sliding door 5. At this time, the sliding door 5 includes the left and right guide rollers 14 and 22 and the stoppers 17.
The position is surely regulated by and is smoothly moved up and down without moving to the left and right.

Next, when the sliding door 5 is moved up and down, the vertical rail portions 2 of the left and right guide rails 1 are inclined to one side in the left-right direction, or the left and right horizontal rail portions 3 thereof.
If there is a difference in elevation or if there is a winding difference between the left and right wires, the opposite side of the inclination direction, that is, for example, the left and right vertical rail portions 2 are inclined to the right side in FIG. In this case, the left and right upper and lower roller supports 8 and 9 on the left and right upper and lower roller supports 8 and 9 are locked to the left guide rail 1 via the guide roller 14 and the roller shaft 13, respectively. The bearing piece 12 of 4) is stopped.

Therefore, this left stopper 17 and the inner bearing piece
The sliding door 5 is prevented from largely tilting to the right in the tilting direction by means of 12, and the right guide rollers 14 and 22 on the right side in the tilting direction guide the guide rollers 14 and 22 on the right side. It is prevented from pressing against 1. Then, the sliding door 5 is smoothly moved up and down along the left and right guide rails 1.

Next, when the sliding door 5 is set between the left and right guide rails 1, when the sliding door 5 is inclined to one side in the left and right direction with respect to the vertical rail portion 2 of the left and right guide rails 1, The sliding door 5 may not be horizontal due to the height difference of the horizontal rail portion 3 and may be tilted to one side in the vertical direction, or a winding difference may occur between the wires of the left and right drums.

In this case, the upper, lower, left and right stoppers 17 of the sliding door 5, that is, the sliding door 5
The stoppers 17 on the upper and lower roller supports 8 and 9 on the opposite side to the direction in which the
The roller shaft 13 is moved forward and backward in the axial direction by rotating the shaft relative to the forward and backward directions and the guide roller 14 is easily adjusted and set at a position where it engages with the left and right guide rails 1. Therefore, the sliding door 5 can be easily attached between the left and right guide rails 1.

In this way, the sliding door 5 is easily adjusted and set according to the inclination state of the left and right guide rails 1, and the sliding door 5 is set so that it can be smoothly moved up and down.

(Effect of the Invention) According to the present invention, the roller supports attached to both ends of the uppermost and lowermost door panels are mounted on the sliding door and opposite to both sides of the mounting substrate. Bearing pieces that are projected in parallel, a roller shaft that is mounted on the bearing pieces on both sides of the roller shaft so as to move back and forth toward the guide rail, and the guide rail that is rotatably provided at the outer end of the roller shaft. Left and right sides of the sliding door that are engaged with the guide roller and the screw shaft portion formed on the inner end portion of the roller shaft so as to be adjustable forward and backward and abut on the bearing piece located inside the sliding door. Since it has a stopper that stops the movement in the direction, the relationship between the left and right guide rails and the left and right parts of the sliding door is reliably regulated by the left and right guide rollers and stoppers, and the sliding The sliding door can be prevented from moving in the left-right direction, and the sliding door can always be smoothly moved up and down along the left and right guide rails.

In addition, the sliding doors can be easily installed on the left and right guide rails by adjusting the roller shaft in the axial direction to adjust for the installation error of the left and right guide rails and the fluctuation after installation. You can easily adjust the settings so that the sliding door can be moved up and down, and the adjustment operation is easy, and the sliding doors can be moved along the left and right guide rails without being biased by the sliding fluctuations of the left and right guide rails. You can always raise and lower smoothly.

Therefore, it is possible to provide an elevating / lowering device for an oversliding door that is easy to adjust and open / close.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view showing a sliding door lifting device with a part omitted, and FIG. 2 is a front view showing the same guide roller supporting mechanism. 1 ... Guide rail, 5 ... Sliding door, 6 ...
… Apertures, 8,9 …… Roller support, 10 …… Hinges, 11…
… Mounting board, 12,20 …… Bearing piece, 13,21 …… Roller shaft, 1
4,22 …… Guide roller, 17 …… Stopper.

Claims (1)

(57) [Scope of utility model registration request] 1. A vertically movable sliding door having a stack of a plurality of guide rails arranged to face each other on the left and right, a plurality of door panels for opening and closing an opening between the left and right guide rails, and each door panel of the sliding door. A plurality of hinges having guide rollers that connect the both ends to each other and engage with the left and right guide rails to guide the sliding door up and down, and are installed at both ends of the uppermost and lowermost door panels of the sliding door. And a roller support body having guide rollers that engage with the left and right guide rails to guide the sliding door up and down, and the roller support bodies attached to both ends of the uppermost and lowermost door panels are A mounting board attached to the uppermost door panel, and bearing pieces protruding in parallel on both sides of the mounting board. A roller shaft rotatably mounted on the bearing pieces on both sides so as to advance and retract toward the guide rail, the guide roller rotatably provided at the outer end of the roller shaft and engaged with the guide rail, and the roller. A stopper that is screwed to a screw shaft portion formed on the inner end portion of the shaft so as to be adjustable in forward and backward directions, abuts on the bearing piece located inside the sliding door, and stops the lateral movement of the sliding door. An elevating device for an over-sliding door having.