JPH0349029Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a pivot hinge for opening and closing a door, and more specifically to a door installation in a building that swingably supports a door that opens and closes around a pivot. This invention relates to a pivot hinge for opening and closing a door, which is equipped with a mechanism for adjusting the distance between the door opening and closing door.

BACKGROUND TECHNOLOGY When a door that can be opened and closed in a double-door manner is attached to a door attachment part of a building, a screw mechanism or a pivot hinge is used as a support for the door.

Problems to be Solved by the Invention Conventional door supports as described above support the door body in a swingable manner by suspending it from the vertical frame of the door attachment part of the building, which faces the side edge of the door body on the swing center side. Therefore, an integrated support mechanism is formed in which the relative position of the door body and the vertical frame of the door mounting portion does not change. For this reason, when installing a door in a building, install the door support so that the minimum gap required for the door to swing is formed between the side edge of the door and the vertical frame of the door attachment part of the building. It is necessary to adjust the mounting position. Accurately adjusting this gap is not easy in practice due to the heavy weight of the door and the fact that the work space is often relatively small.
Doors installed in buildings often caused problems such as creaks and difficulty opening and closing. Furthermore, even if the door is installed accurately, the relative position between the door and the door attachment part of the building may become misaligned due to aging, and in such cases, conventional screw mechanisms and pivot hinges are , it is not possible to perform the adjustment function of the mounting dimensions at all.

To improve the above points, a support base is provided which has an arm member that integrally has a pivot, a collar that rotatably supports the tip of the pivot, and a guide groove that supports the collar so that it can move in a direction perpendicular to the axis of the pivot. A pivot hinge for opening and closing a door is known (for example, the pivot hinge for opening and closing a door is equipped with the arm member and the support base, and one of the arm member and the support base is fixed to the upper and lower parts of the door body, and the other is fixed to the upper and lower frames of the door mounting part of the building.
No. 56-140664), however, this method had the disadvantage that because the collar was supported by a spring on one side in the moving direction, the door would move loosely due to external force, causing rattling. Furthermore, in this method, the adjustment screw is arranged parallel to the axis of the pivot, so the movement direction must be changed at right angles to the movement direction of the collar by the moving plate and the cam slope, and the structure is There were disadvantages such as the complicated structure and the large height dimension.

A primary object of the present invention is to provide a pivot hinge for opening and closing a door that can overcome the above-mentioned disadvantages found in conventional door support devices.

Means for Solving the Problems In view of the above object, the present invention includes an arm member 7 that integrally has the pivot 2, a collar 5a that rotatably supports the tip of the pivot 2, and a collar 5a that is connected to the axis of the pivot 2. and a support base 4 having a guide groove 6 that supports the base movably in a direction perpendicular to the
In the door opening/closing pivot hinge in which one of the arm member 7 and the support base 4 is fixed to the upper and lower parts of the door body 1, and the other is fixed to the upper and lower frames 3a and 3b of the door mounting part 3 of the building, the guide groove 6 A pair of adjusting screws 5b, 5b are provided at both ends of the support base 4 so as to be movable forward and backward along the guiding direction of the guide groove 6, and for positioning the collar 5a by pressing and holding it from both sides in the guiding direction. It is.

Function Adjust the position of the collar 5a with a pair of adjustment screws 5b, 5b to adjust the position of the door body 1 and the door mounting part 3 of the building.
Adjust the distance g. After adjustment, the collar 5a is pressed and held from both sides by the pair of adjustment screws 5b, 5b to position it, thereby preventing it from shifting and rattling.

Embodiment FIG. 1 is a perspective view illustrating the overall structure of the device of the present invention, and FIG. 2 is a partially cutaway front view thereof.
3 and 4 are plan views of the support base of the pivot and the mounting arm of the pivot hinge mechanism. As illustrated in these drawings, the pivot hinge mechanism P places a predetermined eccentric distance (e, approximately 19 mm in this example) between the surface of the door body 1 and the pivot 2, and rotates the door body. The upper edge 1a and lower edge 1b near the center of swing o, and the upper frame 3 of the door attachment part 3 of the building that swingably supports the door body 1
a and the lower frame 3b. Further, a door body 1 is disposed within a press-molded support base 4 that functions as a support member for the pivot 2.
A built-in adjustment mechanism 5 for adjusting the distance (g, approximately 3 mm in this embodiment) between the side edge 1c near the center of swing O and the vertical frame 3c of the door mounting portion 3 is incorporated. The adjustment mechanism 5 for the distance g in this embodiment includes a collar 5a that rotatably supports the tip of the pivot 2.
, a guide groove 6 of the collar 5a formed on the inner surface of the support base 4, and two adjustment screws 5 for changing the relative position between the support base 4 and the collar 5a.
b, 5b, and correspondingly fixed to the upper edge 1a and lower edge 1b of the door body 1 near the pivot center o, there is a base end portion of the pivot 2. is locked by a tightening screw 8.

Since the device of the present invention is constructed as described above,
When installing the door body 1, or when performing repair work after a predetermined period of time has elapsed after installation, by operating the adjustment screws 5b, 5b and changing the relative position of the pivot 2 with respect to the support base 4,
The gap g can be adjusted.

In the above embodiment, the support base 4 is attached to the upper frame 3a and floor frame 3b of the door attachment part 3 of the building, and the arm member 7 is attached to the upper edge 1a and the floor frame 3b of the door body 1 near the swing center o. Although the invention is fixed to the lower edge 1b, the scope of the present invention should not be construed as being limited by such illustrative description. For example, the support base 4 is attached to the door body 1, and the arm member 7
In an embodiment in which the door is attached to the door attachment part 3 of the building, the same function of adjusting the distance g as described above can be achieved.

Effects of the Invention As can be understood from the above explanation, according to the present invention, the pair of adjustment screws can press and hold the collar from both sides to position it and prevent it from shifting and rattling. The door mounting position relative to the building can be easily adjusted.
In addition, the pair of adjustment screws are screwed into the support base so that they can move forward and backward along the guide direction of the guide groove perpendicular to the axis of the pivot, so the structure is simple and the adjustment screws can be adjusted in the height direction of the support base. Dimensions can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating the overall structure of the device of the present invention, and FIG. 2 is a partially cutaway front view thereof.
3 and 4 are plan views of the support base of the pivot and the mounting arm of the pivot hinge mechanism. 1... Door body, 2... Pivot, e... Eccentric distance, o... Swing center of the door body, 1a... Upper edge of the door body, 1b... Lower edge of the door body, 3... Door installation Part, 3a... Upper frame of door mounting part, 3b...
Lower frame of door mounting part, P...Pivot hinge mechanism,
4...Support base, 1c...Side edge of the door body near the center of swing, 3c...Vertical frame of the door mounting part, g...
Interval, 5... Interval adjustment mechanism.

Claims (1)

[Scope of utility model registration request] The arm member includes an arm member integrally having a pivot, a collar rotatably supporting the tip of the pivot, and a support base having a guide groove movably supporting the collar movably in a direction perpendicular to the axis of the pivot. In a door opening/closing pivot hinge in which one side of the support base is fixed to the top and bottom of the door body and the other side is fixed to the top and bottom frames of the door mounting part of the building, the support bases at both ends of the guide groove are fixed in the guiding direction of the guide groove. A pivot hinge for opening and closing a door, characterized in that it is provided with a pair of adjustment screws that are screwed together so that they can move forward and backward along the same direction, and that press and hold the collar from both sides in the guiding direction to position the collar.