JP3089632U - Shutter opening and closing device - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a door opening and closing device capable of keeping the inside and outside airtight when the doors are closed. A torsion bar is inserted into a torsion groove of an operation slider, and the torsion bar is rotatably provided by sliding of the operation slider. Board 4
The rotating arm 6 is fixed to the outer end of one of the rotating shafts 5, and the rotating arm 6 is connected to a vertical moving bar 8, which is connected to the vertical moving bar 8. A plurality of door blades are rotatably mounted, and the rotation arm 6 is rotated by the rotation of the torsion bar 3, whereby the vertical movement bar 8 is operated up and down, and the plurality of door blades are turned. It is configured to move.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a door opening and closing device capable of opening and closing a door blade.

[0002]

[Prior art]

 A conventional door opening / closing device is provided with a vertically moving bar which moves up and down by an up and down operation of an operation slider, and is provided with a plurality of vertically rotatable door blades attached to the vertically moving bar. Even if each blade is overlapped and closed by the operation of the operation slider, the operation of the operation slider, the vertical movement bar, and the door blade are all in the vertical direction, and the tightening action between these three members is performed. However, when an external force is applied, the operation slider easily moves, and the airtightness cannot be ensured even when the door blades are in the overlapping state.

[0003]

[Problems to be solved by the invention]

 The present invention addresses the above-mentioned disadvantages of the conventional example. The purpose is to prevent the operation slider from suddenly moving, and when the doors are closed by stacking the doors, the doors are in close contact. Another object of the present invention is to provide a door opening and closing device that can keep the inside and outside of the door blade airtight.

[0004]

[Means for Solving the Problems]

 In the opening and closing device for a door according to the present invention, a torsion bar is inserted into a torsion groove of an operation slider, and the torsion bar is rotatably provided by sliding of the operation slider. Both ends are fixed to a rotating shaft inserted through the seat plate, and a rotating arm is fixed to the outer end of one of the rotating shafts. The rotating arm is connected to a vertical moving bar, and the vertical moving bar is −, A plurality of door blades are rotatably mounted.

[0005]

[Action]

 In the door opening and closing device of the present invention, when the operation slider is located at one end of the torsion bar, the rotating arm rotates upward, and the vertical movement bar operates upward, and this vertical movement is performed. A plurality of door blades attached to the bar overlap and are closed. In this state, when the operation slider is slid toward the other end of the torsion bar, the torsion bar rotates to rotate the rotating arm downward, thereby moving the vertically moving bar downward. When activated, the plurality of door blades rotate upward, creating a gap between each of the door blades and opening the window.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail. Reference numeral 1 denotes an operation slider, in which a torsional groove 2 is provided in a lateral direction. A torsion bar 3 is inserted through the torsion groove 2. Reference numerals 4 and 4 denote seat plates fixed to the door frame. Both ends of the torsion bar 3 are fixed to a rotating shaft 5 inserted through the seat plates 4 and 4, and slide the operation slider 1 in the lateral direction. Then, the torsion bar -3 inserted in the torsion groove 2 rotates. A turning arm 6 is fixed to the outer end of one of the rotating shafts 5 so that the turning arm 6 turns when the torsion bar 3 turns. The pin 7 of the rotating arm 6 is loosely fitted into a hole 9 of a vertically movable bar 8 which can move up and down, and the rotating arm 6 and the up and down moving bar 8 are connected. When the rotating arm 6 rotates, the vertical bar 8 moves up and down. The plurality of holes 10 formed in the up-down bar 8 are loosely fitted with pins of a plurality of door blades constituting a door that is pivotally supported on the door frame so as to be vertically rotatable. At -8, a plurality of door blades are connected. When the vertical movement bar 8 is moved up and down by the rotation of the rotation arm 6, the plurality of door blades are rotated up and down, and the window is opened and closed.

Next, a series of operations of the embodiment will be described. In the state shown in FIG. 1, the operating slider 1 is located at the center of the torsion bar 3, the rotating arm 6 is positioned horizontally, and the vertical moving bar 8 connected to the rotating arm 6 is located at the middle. , The plurality of door blades attached to the vertical bar 8 are in a downward position, the door blades do not adhere to each other, and the inside and outside are slightly ventilated. In this state, when the operation slider 1 is slid in the right end direction, the rotating arm 6 is rotated downward, the vertical movement bar 8 is operated downward, and each door blade is rotated upward. The window is completely horizontal and the window is completely opened, allowing the inside and outside to ventilate freely. In this state, when the operation slider 1 is slid in the left end direction, the rotating arm 6 is rotated upward, the vertical movement bar 8 is operated upward, and each door blade is rotated downward. When the operation slider-1 is further slid toward the left end, the plurality of door blades are firmly adhered to each other, and the inside and outside are airtight.

[0008]

[Effect of the invention]

 As is clear from the description of the above embodiment, the opening / closing device for the shutter door according to the present invention inserts a torsion bar into the torsion groove of the operation slider, and rotates the arm, and moves up and down. The bar and the plurality of door blades are connected, and the rotating arm, the up-and-down movement bar, and the plurality of door blades are vertically operated by the rotation of the torsion bar, and the operating directions of these members are changed. Since the operation slider and the torsion bar are fitted in the torsion groove, a stopper action occurs at this portion, and the operation slider does not slide unexpectedly due to an external force. The opening angle can be maintained, and especially in the closed state where a plurality of door blades are overlapped, if the operation slider is strongly slid in the closing direction, the door blades will be more closely attached and the degree of polymerization will be higher. It is strong and can keep the inside and outside airtight. That.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operating slider 2 Torsion groove 3 Torsion bar 4 Seat plate 5 Rotating shaft 6 Rotating arm 7 Pin 8 Vertical movement bar 9 Hole 10 Hole

Claims (1)

[Utility model registration claims] 1. A torsion bar is inserted into a torsion groove of an operation slider, and the torsion bar is rotatably provided by sliding of the operation slider. Both ends of the torsion bar are inserted into a seat plate. Fixed to the rotating shaft, and a rotating arm is attached to the outer end of one of the rotating shafts.
An arm opening / closing device, wherein the arm is fixed, the rotating arm is connected to a vertical moving bar, and a plurality of door blades are rotatably attached to the vertical moving bar.