JPS5823895Y2 - Shoji door car - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a single-sliding or sliding shoji made of a metal profile such as aluminum, and particularly to a cantilever door wheel for running a relatively thin and lightweight shoji such as a screen door.

Shoji screens, whose top and bottom frames and left and right vertical frames are made of lightweight metal shapes, typically aluminum shapes, have become extremely popular in recent years due to their lightness and beauty. With this, mechanical strength is maintained by a hollow rib structure.

For example, if the lower stile 2 is illustrated in FIG. 3, it is not only hollow as shown in the figure, but also has opposing walls 2a and 2b parallel to the lower stile downward from the side wall 2d of the lower stile, and has a U-shaped cross section. The door wheel is installed in this groove with a groove Q, but since these walls are made as thin as possible, the distance between the two walls often becomes misaligned during use, and the door wheel tire is attached to the inner wall. The wheels rub against each other, making it difficult to maintain nimble driving.

Furthermore, when installing a shoji in a shoji frame, the installation of the shoji must be adjusted to suit the dimensions of the site, and a simple means of adjustment is required.

The present invention has been made to solve the above problems and meet the demands, and the frame of the door roller to be inserted into the lower stile is made into an L-shape as described below with reference to the attached drawings. This problem was solved by making the tire cantilever.

As shown in FIG. 1, the door roller of the present invention has a groove having a U-shaped cross section provided in the longitudinal direction of the vertical stile 3, with a back wall 4C having an elongated hole 9 and both side walls 4A, 40. A vertical portion 4a having a U-shaped cross section with a size to be inserted into P, and a vertical portion 4a extending perpendicularly from the lower end of one wall 4a of the both side walls and facing downward in the longitudinal direction of the lower stile 2. Opposing wall 2a, 2 of groove Q where
It has a spacing piece 11 for keeping the b spacing l constant,
The door roller is a shoji part having an L-shape with a horizontal portion 4b supporting the tire 6 in a cantilevered manner with the shaft head end 7a slightly protruding from the side surface of the tire.

Normally, in fittings using metal profiles, as shown in Fig. 3, the vertical stile 3 and the lower stile 2 are connected with tapping screws 5 from the vertical stile side.
It is assembled by screwing into the tapping hole 4C of the lower stile, and at that time, L-shaped reinforcing members are often used at the corners, but in this invention, the door roller is made into an L-shape. Therefore, the installation of this door roller plays the same role as the installation of the reinforcing member described above.

For this installation, the vertical part 4a is inserted into the vertical stile 3 to which the present invention is applied, so that the cross-sectional shape shown by the front wall 3a, the back wall 3c, and the rear wall 30 in the figure is aligned in the longitudinal direction. A letter-shaped vertical groove P is provided.

As a result of the interpolation, the side walls 4a, 40 of the vertical portion contribute to keeping the distance between the front wall 3a and the rear wall 30 of the longitudinal groove P constant.

The long holes provided in the vertical back wall 3C serve as insertion holes for the tapping screws 5 when assembling the vertical stile and the lower stile described above.

The reason why it is a long hole is so that the door roller can be adjusted up and down when installing the fittings.

Of course, a device in which the horizontal part is composed of the vertical lower end,
With the above assembly, the horizontal part 4b is inserted into the door groove Q of the lower stile and is located in the position.

In the stowed state, the distance l between the opposing walls 2a and 2b of the door roller groove is maintained constant by the spacing piece.

As the spacer pieces, two pieces 10, 11 are shown in the figure as transversely folded pieces of the horizontal part, but it is also possible to use only the lower piece 11.

The tire 6 supported on the horizontal portion 4b is rotatably cantilevered into the caulking hole 8 by the shaft 7. At this time, the thickness m of the shaft 7 is shown in FIG. As shown in FIG. 3, the shaft head end 7a protrudes slightly from the tire side surface 6a when the tire is mounted, since it is larger than the dent depth n of the tire.

As described above, in the mounted state, the shaft head end 7a is in smooth contact with the inner surface of the opposing wall 2a as shown in the fourth figure, but the tire side surface 6a is separated from the inner surface of the opposing wall 2a by the shaft head 7a. Because it occurs, there will be no friction against this.

The situation is clearly shown in FIG.

In addition, in the figure, reference numeral 12 indicates a lower frame, and the screen door shoji 1 is shown to run on a rail 12a.

Since the door roller of the present invention is constructed as shown above, it can be easily installed using the tapping screw 5-tapping hole 4C relationship of the fitting assembly. Regardless of how simple it is, due to the U-shaped cross-section of the vertical part and the presence of spacing pieces in the horizontal part, the spacing between the vertical groove P of the vertical stile and the door groove Q of the lower stile may be irregular. I can't close it.

Therefore, a shoji equipped with a main door wheel can be run easily for an extremely long period of time.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the assembly of the door roller of the present invention, Fig. 2 is a side view of the upper half section of its frame, tires, and shaft, Fig. 3 is a perspective view for explaining the assembly of the door roller frame, and Fig. 4 is the door roller of the present invention. FIG. 5 is a vertical cross-sectional view including the lower stile and the lower frame portion, and FIG. 5 is a cross-sectional view of the vertical stile portion. 1 is a shoji screen, 2 is a lower stile, 3 is a vertical stile, 4 is a door frame, 5 is a tapping screw, 6 is a tire, 7 is a shaft, 9 is a long hole, 10.1
1 is the interval piece.

Claims (1)

[Scope of utility model registration request] The back wall 4C having the elongated hole 9 and the side walls 4A and 40 have a U-shaped cross section that is large enough to be inserted into the groove P that has a U-shaped cross section provided in the longitudinal direction of the vertical stile 3. The distance 1 between the opposing walls 2a and 2b of the vertical portion 4a and the groove Q extending perpendicularly from the lower end of one wall 4a of the both side walls and facing downward in the longitudinal direction of the lower stile 2 is kept constant. It has an L-shape with a holding spacer piece 11 and a horizontal part 4b that supports the tire 6 in a cantilevered manner with the shaft head end 7a slightly protruding from the tire side surface 6a. A shoji door car.