JPS5915600Y2 - Opening/closing auxiliary device for accordion-type opening/closing frame - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an opening/closing auxiliary device for an accordion-type opening/closing frame such as an accordion door.

Accordion doors are made by stretching a surface material such as cloth or plastic sheet on the outside of an accordion-shaped opening/closing frame, suspending it from a carrier that runs along a horizontal rail, and opening/closing it along the rail. It has been made possible.

Such an accordion door has a tendency to spring back in its fully open and fully closed positions due to the elastic action of the surface material or the like.

For this purpose, such an accordion door must be provided with means for holding it in the fully open and fully closed positions.

The present invention provides an extremely simple means in an accordion-type opening/closing frame to maintain this frame in a fully open position or a fully closed position, and to prevent the accordion-type opening/closing frame from being opened or closed. The present invention provides an opening/closing auxiliary device that automatically moves the frame body in the opening direction or the closing direction when the frame passes a predetermined position.

The opening/closing auxiliary device according to the present invention includes a pair of links that are pivotally connected to each other by a pivot shaft, an arm projecting outwardly is fixed to each link near the pivot shaft, and the arm is attached to both ends of a spring. A slot is formed in which the pin slides, and a spring is stretched between these arms so that when the links are at an angle, the line of tension exerted by the spring passes through the pivot point and extends between these arms. No opening/closing force acts on the links, but after this point the links act to move in the opening or closing direction, and both ends of these pivotally connected links are connected to the accordion-type opening/closing frame. It is characterized by being attached to the central axis.

If necessary, a plurality of such pairs of links may be arranged adjacent to each other in a partially overlapping manner, and the ends of each pair of links may be attached to the central pivot of the accordion-type opening/closing frame; A chain of links is constructed by connecting the intersecting parts of the links of adjacent pairs of links that overlap each other by a pivot.

The illustrated embodiment will be described below.

FIG. 1 shows an accordion door equipped with the device of the present invention.

In the figure, 1 indicates a rail, and 2 indicates an accordion door suspended from the rail.

The accordion door has a plurality of horizontal accordion-shaped opening/closing frames 5 (three in the illustrated example) installed between the vertical frames 3 and 4 at both ends, and a surface material such as cloth or plastic sheet is placed on the frames. 6.

The opening/closing auxiliary device 7 according to the present invention includes a pair of links 8.8 that are pivotally connected to each other by a pivot shaft 9, and an arm 10 that projects outwardly is fixed to each link 8 near the pivot shaft. There are pins 14 attached to both ends of the spring 11.
A slot 13 is formed in which the spring 11 slides, and by slidably engaging pins 14 provided at both ends of the spring 11 in the slot 13, the spring 11 is stretched between the arms 10 and 10. .

When these links 8 are at this angle, the line of action a-a of the tension by the spring passes through the pivot axis 9, and the opening/closing force of these links does not work, but after this position, these links It works to actively move in the opening or closing direction, and both ends of the paired links 8°8, which are pivotally connected, are attached to the central pivot 12 of the accordion-type opening/closing frame 5. be.

The spring 11 may be a coil spring as shown in FIG. 2A, or a plate spring as shown in FIG.

Since the present invention has the above-mentioned configuration, when the accordion type opening/closing frame is closed, the arm 1 fixed to the links 8, 8
At an angle of 0.10, the state shown in FIG.
The line of action of the spring is located below the pivot shaft 9, and acts to actively open the links 8, 8.

When the accordion-type opening/closing frame is opened from this state, the links 8, 8 gradually close, and finally the arms 10, 10 become parallel, but when the accordion-type opening/closing frame is further opened (as shown in the opening of Figure 3) The arms 10, 10 are in the state shown in FIG. 3, and in this state, the tension of the spring 11 causes the slot 13 provided in the arm 10.10 to move beyond the pivot point 9 of the arm 10.10. It will be located above.

When the spring 11 is located above the arm 10.10, the line of action of the spring 11 is located above the pivot 9, so that it acts to positively close the links 8, 8.

Next, according to the present invention, a plurality of pairs of links, which are pivotally connected to the property by the pivot as described above, are arranged adjacent to each other so as to partially overlap each other, as shown in FIG. Then, the ends of each pair of links are attached to the central axis of the accordion-type opening/closing frame, and the intersections of the links of the mutually overlapping adjacent pairs of links are connected by the axis 15 to form such a link. form a chain of

When such a chain of links is formed, these links constitute an additional accordion-type opening/closing frame, which further ensures the operation of the main frame.

As mentioned above, the opening/closing auxiliary device of the present invention assists in the accordion-type opening/closing action, actively holds the frame in the fully open or fully closed position, and when opening/closing the accordion door, the opening/closing auxiliary device moves in the opening direction. , or when it is in a position where it moves in the closing direction, it will automatically return to its original position if the partition frame is used as necessary, making the opening and closing operations of the partition very difficult.

In particular, in the opening/closing auxiliary device of the present application, an arm 10.10 is fixed to the links 8, 8, a slot 13 is provided in the arm 10,
A spring 1 is attached to a pin 14 that is movable along the slot 13.
Since the end of the arm 10 is attached, the spring 11 is configured to move through the slot 13 as the link 8.8 is opened and closed, so that the arm 10°10 passes through the parallel state during the opening and closing process. and spring 11 are connected to arm 10.
10 and always works at a position far from the pivot 9, the elastic force of the spring can always be used effectively, and one type of spring can be used to adjust height and height.
It can accommodate to some extent the difference in force required for opening/closing operations of opening/closing bodies of different widths and weights, so by stocking only a few types of springs, all types of opening/closing bodies can be handled by one type of spring. It becomes possible to control.

The present invention provides an accordion door that is highly effective in use because it eliminates the need for a mechanism for stopping the end of the frame in the open or closed position, as in the case of a stop or stop.

[Brief explanation of the drawing]

FIG. 1 shows an accordion door equipped with the device of the present invention, and FIG. 2 is an enlarged front view showing two forms of the device of the present invention. Figures 3A and 3C are enlarged front views showing the operating state of the present invention. 1...Rail, 2...Accordion door, 3゜4...Vertical frame, 5...Opening/closing frame, 6...Surface Material, 7...Opening/closing auxiliary device, 8...Link, 9...Pivot, 10
...Arm, 11...Spring, 1
2...Central axis, 13...Slot hole, 14
...Pin, 15...Axis.

Claims (2)

[Scope of utility model registration request] (1) Pivotally connect a pair of links to the projection by a pivot,
An outwardly projecting arm is fixed to each link near the pivot, a slot is formed in the arm into which a pin attached to each end of a spring slides, and a spring is stretched between these arms. , when these links are at the angle, the line of action of the tension by the spring passes through the position of the pivot, and no opening or closing force acts on these links, but beyond this position, these links do not open or close. An opening/closing auxiliary device for an accordion-type opening/closing frame, characterized in that both ends of these pivotally connected links are attached to a central axis of the accordion-type opening/closing frame. (2) A plurality of pairs of links that are pivotally connected in projection by pivots are arranged adjacent to each other so as to partially overlap, and the ends of the links of each pair are connected to the central axis of the accordion-type opening/closing frame. The opening/closing auxiliary device as set forth in claim (1) of the utility model registration, wherein the intersecting portions of the links of adjacent pairs of overlapping links are connected by a pivot to form a chain of such links.