JPH0442457Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a mounting device for a roller hoist that lifts a folding door so that it can be slid open and closed.

Prior Art A folding door has a hinge that allows the middle part of the door to bend, and the opening/closing side can slide along a rail. That is, a roller hoist having a rotatable roller is provided protruding above the opening/closing end of the door, and the roller is locked to the rail to lift the door and allow it to slide along the rail.

As such a roller hanging tool, one shown in FIG. 9 has been developed. When adjusting the height of the door using such a roller hanging device, hold a bolt d which has a roller b and has a male thread c on its outer periphery, and a nut e integrated with the bolt d. The door is rotated and screwed into the vertical stile a for the required length, and the height of the door is adjusted by determining the distance between the roller b and the upper end of the vertical stile a. Thereafter, a nut f screwed onto the bolt d is pressed against the upper end surface of the vertical stile a to fix the bolt d. A technique similar to this prior art is described in, for example, Japanese Utility Model Application Publication No. 56-27469.

Problems to be solved by this invention The problem with such a configuration is that it requires two steps: screwing bolt d together and then rotating nut f to fix bolt d. It is.

In addition, two nuts are required: a nut e to grasp in order to screw together the bolt d, and a nut f to fix the bolt d, and in order to rotate the nut between the rail and the stile, the thickness of at least two nuts is required. This required a gap, which resulted in an unsatisfactory appearance.

Means to Solve the Problem This idea involves suspending the door by locking it to the rail with a roller that is fitted and fixed in the hollow part of the vertical stile at the opening/closing end of the door and protrudes upward. A mounting device for a roller hanging tool for a folding door that allows the door to slide, the roller hanging tool having a rotatable roller above and a nut integrally formed on the upper outer periphery,
A bolt with a male thread on the lower part, a female thread on the inner periphery of the lower part, and a bolt threading hole with the inner diameter of the bottom gradually decreasing continuously below the female thread is recessed downward from the top surface. It consists of an upright block with a slit formed upwards that communicates with the bolt threading hole from the lower surface, and the block fits into the hollow part of the vertical frame and is connected to the bolt threading hole. This is an installation device for a roller hanging device for a folding door, which is made by screwing together the bolts and expanding them outwards across the slits, and fixing the roller hanging devices. Since it is completed, the installation work can be made easier and the gap between the rail and the door can be reduced.

Embodiment This invention will be described in detail below based on an embodiment shown in the drawings.

What is shown in FIG. 8 is a folding door, in which doors 1, 1 are attached on the left and right sides, and each door 1 is divided into left and right parts, and consists of two divided doors 2, 2. The divided door 2 has upper and lower horizontal stiles 3, 3 and left and right vertical stiles 4, 4 assembled into a rectangular shape, and a decorative board 5 is fitted therein.

As shown in Fig. 7, the divided doors 2, 2 are foldably connected by a hinge 9 to form a single door 1. In the figure, the door 1 on the right side is located at the top and bottom of the right end, and the door 1 on the left side is located at the top and bottom of the right end. The left end top and bottom are supported by the top and bottom horizontal frames. Also, the left end of door 1 on the right side and the right end of door 1 on the left side have a sixth
As shown in the figure, a roller hanging tool A is provided to protrude upward, and the doors 1, 1 are suspended by being locked to a rail 11 attached to an upper frame 10. Further, guide rods 12 respectively protrude downward corresponding to the roller hanging tools A, and are inserted into rails 14 provided on the lower frame 13.

The roller hanging tool A consists of a bolt 15 and a block 16, each having a rotatable roller 17 above it, as shown in FIGS. 1 to 5.

A nut 18 is integrally formed on the outer periphery of the upper part of the bolt 15, and the part above the nut 18 is inserted through a ring-shaped collar 19, a U-shaped bearing 20, and a washer 21, and the upper end is swaged and attached to the bearing 20. However, it is rotatable. Bearing 2
A shaft 22 is inserted horizontally through the shaft 0, and rollers 17, 17 are attached to the shaft 22 so as to be rotatable left and right.

A male thread 23 is screwed into the lower part of the outer periphery of the bolt 15. The lower end of the bolt 15 is formed into a conical shape.

In this embodiment, the block 16 is made of synthetic resin and has a prismatic upright shape, and has a bolt threading hole 24 recessed downward in its upper surface. The bolt threading hole 24 has a male thread 25 screwed into the inner peripheral surface of the lower part thereof, and a bottom part 26 continuous with the female thread 25 is formed so that the inner diameter gradually decreases as it goes downward.

A slit 27 is vertically formed in the block 16 and communicates with the bolt threading hole 24 from the bottom surface upward. In the embodiment, two slits 27, 2
7 is formed into a cross.

The work of installing the roller hanging tool A as described above will be explained.

Insert the bolt 15 into the bolt threading hole 24 of the block 16.
the bolt 15 into the block 16. At this time, the bolt 15 is inserted to a position where the conical portion at the lower end is just about to contact the bottom portion 26 of the bolt threading hole 24.

The rollers 17, 17 are locked to the rail 11, and the block 16 is inserted and fitted into the hollow part 4a of the vertical stile 4. The height of the door 1 is adjusted by fitting the block 16 to an appropriate position, gripping and rotating the nut 18 of the bolt 15, and firmly screwing the bolt 15 into the bolt screwing hole 24. The conical portion at the lower end of the bolt 15 contacts the bottom 26 of the bolt threading hole 24 and expands outward across the slits 27, 27 at the bottom of the block 16. The lower part of the block comes into pressure contact with the inner surface of the hollow part 4a of the vertical stile 4, and the installation of the roller hanger A is completed.

Effects of the invention This invention has the above-mentioned configuration, in which a bolt integrally formed with a nut is screwed into a block in which a slit communicating with a bolt threading hole from the bottom surface is formed in the vertical direction, and the slit is bounded by the bolt. By expanding outward, it is attached by pressing against the inner surface of the hollow part of the stile, so installation is completed by simply rotating the bolt, making the installation process extremely easy.

Since the bolt only has a nut for rotating it, the gap between the rail and the frame can be reduced, resulting in a good appearance.

Furthermore, since the block is an upright body, it fits into the hollow part of the frame to the appropriate position, and can be installed and fixed by simply rotating the bolt at this position.
Another advantage is that the height of the roller hanger relative to the stile can be adjusted very easily.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of this invention, Fig. 2 is a longitudinal sectional view thereof, Fig. 3 is a front view, Fig. 4 is a side view, Fig. 5 is a bottom view, and Fig. 6 is a longitudinal sectional view thereof. Figure 8-
A cross-sectional view of FIG. 7 is a cross-sectional view taken along the - line in FIG.
FIG. 8 is a front view of the folding door, and FIG. 9 is a longitudinal sectional view of a conventional example. A... Roller hanging tool, 1... Door, 2... Split door, 4... Vertical frame, 11... Rail, 15... Bolt, 16... Block, 17... Roller, 18
...Natsuto, 19...Color, 20...Bearing,
21... Washer, 22... Shaft, 23... Male thread, 24... Bolt threading hole, 25... Female thread, 2
6...bottom, 27...slit.

Claims (1)

[Scope of utility model registration request] A roller 17 that is fitted and fixed in the hollow part 4a of the vertical stile 4 at the end of the opening/closing side of the door 1 and protrudes upward is mounted on the rail 11.
This is a mounting device for a folding door roller hanging tool A that suspends the door 1 by locking it to the rail 11 and allows the door 1 to slide along the rail 11. on the upper side, a nut 18 is integrally formed on the upper part of the outer periphery, and a male thread 2 is provided on the lower part.
3 is threaded, and a female thread 25 is threaded on the inner periphery of the lower part, and a bolt threading hole 24 in which the inner diameter of the bottom part 26 is gradually made smaller continues from the lower part of the female thread 25 and extends downward from the top surface. It consists of an upright block 16 in which slits 27, 27 communicating with the bolt threading hole 24 from the lower surface are formed in the vertical direction. and screw the bolt 15 into the bolt screwing hole 24 to open the slit 2.
A mounting device for a roller hanging tool for a folding door, characterized in that it is expanded outwardly and fixed at the boundaries of 7 and 27.