JP2001098836A - Panel-overrotation prevention runner, for folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a runner of a folding door provided with a preventive mechanism preventing the operation from getting worse because the panel of the folding door turns excessively from a position parallel to the rail or an angular position tilted a little. SOLUTION: In the runner 3 provided with a runner base 7 fixed to the upper end or the lower end of a panel 2, a runner shaft 8 pivoted so as not to vertically slide in the runner base but to relatively rotate, wheels 11 traveling in the upper and lower side rails, a runner truck 9 fitted to integrally rotate together with the runner shaft, a cum 12 is provided in either the runner base or the runner shaft, and a cum groove 14 is provided in the other of them. A projection 13 is integrally provided in the cum and a projection receiver 15 is also integrally provided in the cum groove respectively to limit the relative rotary angle of the runner base and the runner shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door runner for a partition.

[0002]

2. Description of the Related Art A plurality of panels foldably connected to each other via hinges of partition folding doors are provided so that a runner provided at the center of the upper end or at the center of the upper end and the lower end of each panel can run on an upper rail or an upper rail or a lower rail. Incorporated in A conventional runner includes a runner base fixed to an upper end or a lower end of a panel, a runner shaft rotatably supported by the runner base, and a runner bogie externally fitted to the runner shaft so as to rotate integrally therewith. And wheels attached to the runner truck and traveling on the upper rail or the lower rail.

[0003] When the handle attached to the hinge is pressed, the panel is opened and closed, and when the door is pulled, the panel is folded and opened.

[0004]

In the conventional runner, the runner base and the runner shaft rotate freely relative to each other.
As shown in FIG. 5, during opening and closing of the folding door 1, the panel 2 rotates from an angle position parallel or slightly inclined with respect to the longitudinal direction of the rail 3 to an angle position perpendicular to the longitudinal direction of the rail 3 or more. When the folding door 1 has an obtuse triangular shape, there is a problem that the opening and closing operation of the folding door 1 becomes extremely heavy, and the opening and closing of the folding door 1 become jerky and unstable.

The present invention has been made to solve this problem, and an object of the present invention is to move a panel from an angle position parallel or slightly inclined to a rail to an angle position perpendicular to the rail. An object of the present invention is to provide a folding door runner having a mechanism for preventing rotation.

[0006]

In order to achieve the above object, the present invention employs a method in which a projection is integrally provided on one of a runner base and a runner shaft, and the runner shaft and the runner shaft are abutted on the other. That is, a projection receiver for limiting the relative rotation range of the base is formed. Preferably, in order to make the runner shaft slidable up and down with respect to the runner base, a cam provided with a right-angled chevron projection is integrally rotated on the runner shaft. The cam groove is provided so that the cam can not be slid up and down, but can be rotated, but the cam groove is in contact with a right-angled chevron projection to limit the relative rotation angle range between the runner base and the runner shaft. A projection receiver having an abutment surface is provided.

This runner can be shared by all panels regardless of the direction of rotation of the panels. The two contact surfaces are plane-symmetric with respect to the axis, and when the unfolded panel is at an angle position parallel or slightly inclined to the rail,
The tip of the projection is located on the plane of symmetry of the two contact surfaces. When the panel is folded, one of the adjacent panels rotates 90 degrees if it is parallel to the rails when deployed, and less than 90 degrees if it is slightly inclined to the rails when deployed, so that the protrusions are on one contact surface. Hit. Similarly, the other is 90
After a rotation of less than 90 degrees or 90 degrees, the protrusion strikes the other abutment surface. As a result, further rotation is restricted, so that the folding door panel rotates excessively and the folding door becomes obtuse.
Breaking into a square shape is prevented beforehand. The runner having a mechanism for preventing the panel from over-rotating is usually used as an upper runner of a folding door, but can be used as a lower runner if necessary.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in the drawings. FIG. 1 is a perspective view of a folding door provided with a runner according to an embodiment of the present invention.
0 and can be connected to each other by folding.
The upper runner 3 is rotatably mounted at the center of the upper end and the lower runner 4 is rotatably mounted at the center of the lower end. The runner 3 is mounted on the upper rail 5 and the runner 4 is mounted on the lower rail 6.
, So that each can be run.

The runner 3 includes a runner base 7 fixed to the panel 2, a runner shaft 8 rotatably supported by the runner base, and a runner truck 9 fitted around the runner shaft so as to rotate integrally therewith. And the runner truck 9 has wheels 11 running on the upper rail 5. The handle 16 of the folding door 1 is fixed to the hinge 10, and when the handle 10 is pulled, the panel 2 is folded and the folding door 1 is opened, and when pressed, the panel 2 is expanded and the folding door 1 is closed.

FIGS. 2 and 3 are a perspective view and an exploded perspective view, respectively, of the runner. The runner base is partially cut away for easy understanding. A cam 12 having a right angle chevron-shaped projection 13 is integrally rotated with the lower half of the runner shaft 8 of the runner shaft 8 having a chord circular cross section, but is externally slidably fitted in the axial direction. A groove 14 for rotatably housing the cam 12 is formed in the runner base 7, and a projection receiver 15 for limiting the rotation range of the cam 12 to 180 degrees is provided on the inner surface of the groove 14. When the cam 12 rotates to one side, one side of the projection 13 is
5, and when rotated to the other side, the other side of the projection 13 comes into contact with the other side of the projection receiver 15. Both side surfaces of the projection receiver 15 open at 90 degrees and are plane-symmetric with respect to the axis.

FIG. 4 is a plan view showing a process of opening and closing the folding door 1 composed of three panels 2, and shows the state of the cam 12 and the cam groove 14 in the vicinity of each runner 3 in an enlarged manner. FIG. 4 (a)
As shown in (2), when the panel 2 is unfolded and the folding door 1 is closed, the interval between the three runners 3 is maximum. The cam groove 14 of each runner 3 opens in a direction perpendicular to the longitudinal direction of the upper rail 5, and the perpendicular end of the projection 13 of the cam 12 is located on the plane of symmetry of the projection receiver 15.

As shown in FIG. 4 (b), when the handle 16 is pulled to open the folding door 1, the panels 2 at both ends rotate in the same direction, and the middle panel 2 rotates in the opposite direction. The distance between the three becomes smaller. The opening direction of the cam grooves 14 of the runners 3 of the panels at both ends is inclined to one side, in the figure, to the right. At this time,
Since the cam 12 does not rotate, the projections 13 on both end panels approach one side of the projection receiver 15, and the projections 13 on the intermediate panel approach the other side of the projection receiver 15.

As shown in FIG. 4C, when the folding door 1 is opened, the panel 2 is rotated by 90 degrees from the initial angular position and folded, and the interval between the runners 3 is minimized. At this time, the opening direction of the cam groove 14 of each panel 2 is parallel to the longitudinal direction of the upper rail 5, and one side of the projection 13 on both end panels is on one side of the projection receiver 15, Since the other side faces abut against the other side faces of the projection receiver 15, the panel 2 cannot rotate more than 90 degrees. Therefore, there is no possibility that any of the panels 2 is rotated by 90 degrees or more and the panel is folded into an obtuse triangle.

Although a runner incorporated in the upper rail has been described as an embodiment, the mechanism for preventing the panel from rotating excessively can be applied to a runner incorporated in the lower rail as it is. In the folding door of the embodiment, the developed panel is parallel to the rail, but the present invention can be applied to the folding door in which the developed panel is slightly inclined to the rail. In this case, the panel is folded by being rotated by an angle smaller than 90 degrees from the initial angular position, and the projection receiver limits the rotation range of the cam to an angle smaller than 180 degrees.

[0015]

As described above, the runner of the present invention rotatably supports a runner shaft that rotates integrally with a runner truck having wheels running on rails on a runner base fixed to a panel. And the runner base is provided with a projection on one side and a projection receiver for engaging the projection on the other side, thereby limiting the relative rotation angle between the runner shaft and the runner base. The panel cannot rotate more than the angle perpendicular to the rail.
An excellent effect is obtained in that the operation is heavy due to being folded into a square shape, and there is no possibility that the operation becomes unstable.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folding door provided with an upper runner according to an embodiment of the present invention;

FIG. 2 is a perspective view of the upper runner of FIG. 1,

FIG. 3 is an exploded perspective view of the runner of FIG. 2;

4A and 4B are plan views showing opening and closing of a folding door, wherein FIG. 4A shows a closed folding door, FIG. 4B shows a folding door in the middle of opening and closing, and FIG.
Indicates open folding doors, respectively.

FIG. 5 shows a conventional folding door provided with a runner in an obtuse triangular shape.

[Explanation of symbols]

 1: folding door 2: panel 3: runner 4: runner 5: upper rail 6: lower rail 7: runner base 8: runner shaft 9: runner trolley 10: hinge 11: wheel 12: cam 13: protrusion 14: cam groove 15 ： Projection support 16 ： Handle

Claims (2)

[Claims] 1. A runner base (7) fixed to an upper end or a lower end of a panel (2), a runner shaft (8) rotatably supported on the runner base, and wheels running on rails. A runner (3) provided with a runner bogie (9) attached to the runner shaft so as to rotate integrally with the runner shaft, wherein a cam (12) is provided on one of the runner base and the runner shaft and a cam is provided on the other. Grooves (14) are provided, and the cams are provided with protrusions (13),
An overrun prevention runner for a folding door, wherein a relative rotation angle between the runner base and the runner shaft is limited by integrally providing a projection receiver (15) in the cam groove. 2. A projection (1) at a tip perpendicular to a runner shaft (8).
The cam (12) having 3) is fitted around the cam groove (14) so as to rotate together, and the cam groove (14) is formed with a projection receiver (15) having two side faces abutting on one side and the other side of the projection. 2. The runner for preventing over-rotation of a panel of a folding door according to claim 1.