JPS5810553B2 - Folding door door wheel slip-off prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing wheels from slipping off of a door roller for a folding door, and more specifically, a running roller 23 for a folding door is installed in a door roller guide 46, and the front end 26 of the door roller guide 46 is attached. The side surface 28 of the rear end 27 is bulged outward to form a convex sliding portion 47, and the side surface 28 of the sliding portion 47 of the door roller guide 46 is formed between the lower edge 21 of the opening 13 such as a doorway. This relates to a device for preventing slippage of a door roller for a folding door, in which a rail groove 22 having a width substantially equal to the width is recessed, and a door roller guide 46 is fitted into the rail groove 22 so as to be freely movable.

When opening and closing a conventional folding door, the shock when folding and the reaction when opening and closing apply force to the door roller in a direction that twists the door roller relative to the direction in which it runs, causing the door to fall off and resulting in poor running performance. There was a drawback.

The present invention was made in view of the drawbacks of the conventional example, and
The object of the present invention is to bulge the side surfaces of the front end and rear end of the door roller housing outward to form a convex sliding portion, and to form a convex sliding portion on the lower edge of the opening so that the width between the side surfaces of the sliding portion is By recessing approximately equal rail grooves and fitting the door roller housing into the rail grooves, the door roller can run along the rail grooves, preventing the door roller from coming off the rails, and at the same time ensuring that the sliding part and the rail groove are not in contact with each other. To provide a slip-off prevention device for a door roller for a folding door which has excellent running performance by making the sliding contact with the inner surface a linear contact, thereby reducing the contact area and the sliding resistance.

The present invention will be described in detail below according to illustrated embodiments.

In the figure, 1 is a panel formed by extrusion molding of synthetic resin, which is hollow inside and open at the top and bottom.Hinges for sliding are provided at both left and right ends of panel 1 symmetrically with respect to the center. An arc surface 14, a stopper piece 15, and a cylindrical shaft 16 at the tip of the stopper piece 15 are provided.

Both the front side hinge 2 and the rear side hinge 3 are formed by extrusion molding of aluminum, and are long members with a substantially semicircular cross section, and the length thereof is equal to the vertical height of the panel 1. It is.

The front hinge 2 and the rear hinge 3 are each provided with two bearing grooves 17 over the entire length of the upper and lower sides, and each bearing has tapping holes 18 on both sides of the bearing grooves 17 along the entire upper and lower sides. It is provided throughout.

Further, each of the front side hinge 2 and the rear side hinge 3 is provided with opposing arcuate support portions 19 over the entire length thereof.

Thus, the folding door body 4 is formed by fitting the cylindrical shaft 16 into the bearing recess 17, and hinges a plurality of panels 1 alternately with the front hinge 2 and the rear hinge 3.

Here, the front side hinge 2 and the rear side hinge 3 are folded only so that the front side of the panel 1 protrudes from the front side hinge 2 due to the presence of the stopper pieces 15 provided point-symmetrically on both left and right sides of the panel 1. , and the rear hinge 3 is folded so that the rear side of the panel 1 protrudes.

The door roller housing 42 is U-shaped with an upward opening, and a running roller 23 is rotatably attached to the door roller housing 42. The running roller 23 is attached to the bottom piece 24 of the door roller housing 42.
A horizontal piece 41 extends from the upper end of one side of the door roller housing 42, and a housing locking protrusion 43 is provided on the other side of the door roller housing 42.
The horizontal piece 41 has two protruding shafts 44 projecting upward, and the horizontal piece 41 has screw insertion holes 45.
is the provision.

As shown in FIGS. 5 and 6, the door roller guide 46 has both side surfaces 28 of the front end 26 and rear end 27 bulging outward in a convex shape, and this part becomes a sliding part 47, and the front and rear ends Sliding part 4
Between 7 and 7, there is a flat part 53 that is recessed inward from the side surface 28 of the sliding part 47.

Furthermore, a square hole 48 that opens upward and downward is bored in the center of the door roller guide 46, and a locking protrusion 30 is protruded from the lower end of the inner short surface 29 of the square hole 48.

Further, the inner long surface 31 is provided with a shaft clearance groove 32 extending downward from the upper edge.

The cap 20 is as shown in FIG. 10, and has a storage recess 33 in its lower surface for storing the door roller housing 42, its horizontal piece 41, and housing locking protrusion 43.
A locking protrusion 34 is provided on the inner surface of the cap 20,
Furthermore, two holes 36 for protruding shafts are bored in the ceiling piece 35.

Therefore, the door roller housing 4 is inserted into the square hole 48 of the door roller guide 46.
3 from above, engage the locking protrusion 30 of the door wheel guide 46 with the locking part 37 of the door wheel housing 42, and then insert the protruding shaft 4
4 into the protruding shaft hole 36 of the cap 20 and remove the cap 2.
A door wheel housing 42 and a horizontal piece 41 are placed in the storage recess 33 of 0.
and the housing locking protrusion 43 are housed, and the housing locking protrusion 43 is engaged with the locking protrusion 34 of the cap 20 to be integrated.

In this way, the door roller guide 46 is held between the cap 20 and the locking portion 37 of the door roller housing 42, and does not come off.

The door rollers 7 thus integrated are each screwed to the lower surface of the rear hinge 2.

Further, on the upper surface of the front hinge 2 of the folding door body 4, a follower guide 10 is provided which protrudes in and out of the front hinge 2 in the vertical direction, and is always biased upward by a compression coil spring (not shown). Furthermore, a main guide 5 is attached to the upper surface of the rear hinge 3.

As shown in FIG. 9, the running rail 8 is made of extruded aluminum sash material, and has a rail groove 22 with an upward opening, and a running protrusion 39 extending longitudinally from the center of the bottom 38. It is.

The opening 13 is like a doorway, and has a door guide groove 49 formed at its upper edge, and the traveling rail 8 is fitted into a groove 50 at its lower edge.

Therefore, the folding door A is arranged in the opening 13 of the lever, the guide 10 and the main guide 11 are fitted according to the door guide groove 49, and the door roller guide 46 is fitted into the running rail 8,
The running rollers 23 are arranged so as to run on the running ridges 39.

To explain the case where the folding door A is folded and the opening 13 is opened, when the folding door A is pressed in the opening direction, the slave guide 10 pops out from the door guide groove 49, and the front hinge 2 is folded. However, as the front hinge 2 is folded, the door roller 7 travels within the running rail 8, and at this time, the sliding portions 47 of the front end 26 and rear end 27 of the door roller guide 46 move into the rail groove 22. It will slide while making line contact with the inner surface 51.

In this way, the front end 26 and the rear end 2 of the door roller guide 46 are
7, so even if a torsional force is applied to the door roller 7 due to a shock when the folding door A is folded or a reaction when opening and closing, the sliding portion 47 of the door roller guide 46 will bear this force.
Since it does not touch the running rollers 23, the wheels do not come off, and furthermore, since the contact between the inner surface 51 of the rail groove 22 and the convex sliding portion 47 of the door roller guide 46 is a line contact and not a surface contact, there is no frictional force. This has the advantage that the door roller 7 runs smoothly.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the arrangement of the folding door of the present invention, FIG. 2 is an enlarged cross-sectional view of one embodiment of the folding door of the present invention, and FIG. 3 is a view of the door roller guide of the present invention. An enlarged perspective view of one embodiment, FIG. 4 is a plan view of the door roller guide fitted in the running rail, FIG. 5 is an enlarged bottom view of the same, and FIG. 6 is the X shown in FIG. 5. -X' force direction vertical cross-sectional view, 7th
8 and 8 are enlarged vertical cross-sectional views of the door roller of the present invention, FIG. 9 is a partially enlarged perspective view of an embodiment of the running rail of the present invention, and FIG.
Figure 0 is an enlarged perspective view of one embodiment of the cap of the present invention;
3 is an opening, 21 is a lower edge of the opening, 22 is a rail groove, 2
3 is a running roller, 26 is the front end of the door roller guide, 27 is the rear end of the door roller guide, 28 is the side surface of the front end and rear end of the door roller guide,
46 is a door roller guide, and 47 is a sliding part.

Claims (1)

[Claims] 1 Install the running roller for the folding door into the door roller guide,
The side surfaces of the front and rear ends of the door roller guide bulge outward to form a convex sliding section, and a width approximately equal to the width between the sides of the sliding section of the door roller guide is provided at the lower edge of an opening such as a doorway. A door roller slippage prevention device for a folding door comprising a recessed rail groove and a door roller guide fitted into the rail groove so as to be freely movable.