JPS6133814Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a folding door, and more specifically, the side ends of the door body 1 are rotatably connected to each other to form a folding door body 2, and a runner 5 is connected to an upper rail 3. The runner 5 is movable only in the length direction, and a substantially elliptical shaft 6 with its long diameter facing in the rail length direction is provided protruding from both ends of the upper edge of the folding door body 2, and a receiving hole 7 is bored in the runner 5. A pair of elastic protrusions 11 are provided in the receiving hole 7 to face each other in the length direction of the rail,
The relationship between the long diameter part of the shaft 6 rotatably inserted into the receiving hole 7 and the pair of elastic protrusions 11 is shown in the door body 1.
Immediately before the shaft 6 becomes approximately 90 degrees with respect to the upper and lower rails 3 and 4, further rotation is restrained, and the long diameter portion of the shaft 6 is configured to be able to enter and hold a bullet between a pair of elastic protrusions 11. This relates to folding doors.

Conventionally, in a folding door in which the side edges of the door body are rotatably connected together and the upper and lower runners are movable on the upper and lower rails, the door plate surfaces of the door body are tightly aligned so that they almost meet each other. The drawback was that when the folding door was moved along the upper and lower rails while it was folded, it tended to rattle.

The present invention was developed in view of these conventional drawbacks, and its purpose is to make it possible to rotate the door body just before the two door bodies meet tightly by simply making improvements to the conventional one. by suppressing
The folding door body can be kept slightly open,
To provide a folding door that does not easily rattle even when it is moved while folded and is also hard to rattle when the door body is extended and travelled.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 1 shows a folding door A, in which two sets of folding door bodies 2, in which two door bodies 1, 1 are pivotally connected so that they can be folded, are placed between an upper rail 3 and a lower rail 4 provided at the opening of a room. It was installed so that it could run freely. The upper rail 3 and lower rail 4 have a cross section U with a lip.
It is formed into a letter shape. As shown in FIG. 2, the runner 5 has a bearing member 8 having a length longer than the groove width of the upper rail 3 and rotatably supports a roller 9 thereon. A circular receiving hole 7 is bored in the bearing member 8 . A pivot 10 rotatably pivotally connected to the door body 1 via a support 13 is slidably inserted into the lower rail 4.

A shaft 6 is non-rotatably attached to both ends of the upper edge of the folding door body 2 via a rotation stopper pin 12 and projects upward. The upwardly projecting portion of the shaft 6 is shaped like an ellipse. In the receiving hole 7, two elastic protrusions 11, which are an example of suppressing means, are provided facing each other. However, as shown in Figure 4 a and b,
When the shaft 6 is inserted into the receiving hole 7 and the door body 1 is rotated from the closed state to the opening direction, the door body 1 is moved to the upper and lower rails 3.
Immediately before the angle reaches approximately 90 degrees, the long diameter portion of the elliptical shaft 6 contacts the pair of protrusions 11, suppressing further rotation of the door body 1, and as shown in FIG. To move the door bodies 1, 1 along the upper and lower rails 3, 4 without wobbling, with the opening angle θ of 1, 1 being approximately 20° and the two door bodies 1, 1 being maintained in a V-shape in this manner. It is something that can be done. As shown by the solid line in FIG. 5, when the door bodies 1, 1 are closed, the long diameter part of the elliptical shaft 6 enters between the opposing elastic protrusions 11, 11, and applies a considerable external force. It performs a latch function that prevents the door body 1 from opening unless the door body 1 is opened.

In summary, the present invention has a substantially elliptical shaft with its major diameter facing in the rail length direction protruding from both ends of the upper edge of the folding door body, and a pair of elastic The relationship between the long diameter part of the shaft rotatably inserted into the receiving hole and the pair of elastic protrusions is determined by adjusting the relationship between the long diameter part of the shaft rotatably inserted into the receiving hole and the pair of elastic protrusions. In addition to suppressing rotation, the long diameter part of the shaft is set so that it can be inserted and held between a pair of elastic protrusions, so the elastic protrusions restrain the rotation of the approximately elliptical shaft and the door body It is possible to prevent the folding door body from becoming approximately 90 degrees to the rail, and to avoid the door body from meeting each other tightly, allowing the folding door body to run smoothly against the upper and lower rails. However, especially in the present invention, the relationship between the shaft and the elastic protrusions is set so that the long diameter part of the shaft can be inserted and held between the pair of elastic protrusions.
When the two door bodies of the folding door body are extended and closed, in order to run them in the length direction of the rail, the long diameter part is inserted between a pair of elastic protrusions and the axis and This has the advantage of preventing rotation between the runners and allowing the folding door body to run without rattling.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a partially exploded perspective view of the same, FIG. 3 is a partially enlarged sectional view, and FIGS.
FIG. 5 is a plan view showing the same operation as above, in which 1 is a door body, 2 is a folding door body, 3 is an upper rail, 4 is a lower rail, 5 is a runner, 6 is a shaft, and 7 is a receiving hole.

Claims (1)

[Scope of utility model registration request] A folding door body is constructed by pivotally connecting the side edges of the door body, and runners are provided on the upper rail so as to be movable only in the rail length direction, and runners are installed at both ends of the upper edge of the folding door body. A substantially elliptical shaft with a long diameter part facing in the rail length direction is provided protrudingly, a receiving hole is bored in the runner, a pair of elastic protrusions are provided in the receiving hole facing in the rail length direction, and a receiving hole is formed. The relationship between the long diameter part of the shaft, which is rotatably inserted into the shaft, and a pair of elastic protrusions is checked just before the door body becomes approximately 90 degrees with respect to the upper and lower rails, and the shaft is A folding door comprising a long diameter portion of which can be inserted and held between a pair of elastic protrusions.