JPS594160Y2 - Telescopic frame for accordion door - Google Patents

Description

[Detailed description of the invention] The present invention relates to a structure for preventing springback of a telescopic frame for an accordion door, in which a plurality of X-shaped hinges A are connected at the center, and a runner is placed in the center of each hinge A.
2, a fitting shaft 3 is provided on one side of each runner 12, and a U-shaped fitting that can be fitted to the fitting shaft 3 of the adjacent runner 12 is provided on the other side of each runner 12. This invention relates to a telescoping frame for an accordion door in which a portion 4 is provided, and the object of the present invention is that when folded, the fitting shaft portions of adjacent runners and the fitted portions fit together to form a spring. To provide an extensible frame for an accordion door, which can smoothly fold an accordion by preventing the risk of the accordion returning when backed up, and by accurately and smoothly fitting a fitting shaft part and a fitting part.

The present invention will be explained in detail below using examples.

The hinge A has a first notch 5 in which only the lower half is cut out in a U-shape in the center of a first hinge piece 1 having a thin rectangular shape, and a first notch 5 in the center of a second hinge piece 2 having a thin rectangular shape. A second notch 6 is provided in a U-shape, and the first notch 5 and second notch 6 are fitted together to connect the center of the first hinge piece 1 and the center of the second hinge piece 2. It is attached to a shaft 7 protruding from the second hinge element 2 to form an X-shape.

A plurality of these hinges A are arranged and the fitting portions 8 and the fitting portions 9 at the ends of the first hinge piece 1 and the second hinge piece 2 of adjacent hinges A are pivotally connected via a steel wire 10. A telescopic frame for an accordion door is formed by connecting the upper and lower hinges A with a steel wire 10.

A runner 12 is attached to each hinge A located at the upper part of this telescopic framework for an accordion door.
A cylindrical fitting shaft part 3 is protruded from one side of each runner 2, and a U-shaped fitting part 4 is protruded from the other side of each runner 12.

An accordion door 13 is assembled by stretching a leather-like outer skin 11 on the front and back sides of this telescopic framework for an accordion door.

When accordion door B is in the state shown in Figure 3a, hinge A is in the state shown in Figure 4a, and when accordion door B is folded as shown in Figure 3, they are adjacent to each other as shown in Figure 4. The first hinge piece 1 and the second hinge piece 2 of the hinge A overlap, and the fitting shaft part 3 and the fitted part 4 of the adjacent runners 12 fit together, as shown by the imaginary line in Figure 3. It does not spring back as shown.

As described above, in the present invention, a fitting shaft is provided on one side of each runner attached to the center of the hinge, and a U that can be fitted with the fitting shaft of an adjacent runner is provided on the opposite side of each runner. Since the fitted part is provided in the shape of a letter, when folded, there is no risk that the fitting shaft part of an adjacent runner and the fitting part will fit together and return due to springback. The runner slides on the rail when folded, and even if the accordion door swings from front to back, the runner's position is regulated by the rail and does not swing, allowing it to connect to the fitting shaft. The fitting with the fitting part is automatically, accurately and smoothly carried out, and the accordion door can be folded smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view of the runner and hinge of the above, Figs. b is an explanatory diagram of the operation of the same telescopic frame as above, in which 1 is the first hinge piece, 2 is the second hinge piece, 3 is the fitting shaft, 4 is the fitted part, 12 is the runner, and A is the hinge. It is.

Claims (1)

[Scope of utility model registration request] A plurality of X-shaped hinges are connected at the center, a runner is attached to the center of each hinge, a fitting shaft is provided on one side of each runner, and an adjacent runner is attached on the other side of each runner. A telescopic frame for an accordion door, which is provided with a U-shaped fitting part that can be fitted with a fitting shaft part.