JPH05141143A - Automatic hinge for door - Google Patents

Abstract

PURPOSE:To curtail time and labor for setting work as well as to solve a problem on looseness and gratingness. CONSTITUTION:This automatic hinge consists of an upper shaft supporter 2 with an upper vertical shaft, being locked to the upper part of a frame column A and/or an opening upper ledge, an upper door supporter 3 with a closing spring, whose one end is connected to the upper vertical shaft of the upper shaft supporter 2 and being locked to the upper part of a door B, a lower shaft supporter 4 with a lower vertical shaft 6a being attached to a lower part of the frame column A and/or an opening floor beam, and a lower door supporter 5 with a bearing hole, being fitted in the lower vertical shaft 6a of the lower shaft supporter 4 and a rotational ball 10b at the tip and attached to the door. With this constitution, the lower door supporter and the lower shaft supporter are made to be only fitting between the lower vertical shaft and the bearing hole, thus hanging of the door is very simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door hinge used for a general door.

[0002]

2. Description of the Related Art A conventional extra hinge such as a closer has been used for a hinge for automatically closing a door.

[0003]

In the conventional hinge for automatic closing, the structure is complicated and expensive, the mounting is difficult, and the labor is time-consuming. In addition, the heavy door had a loose hanging part, which hindered the opening and closing function.

In view of the above points, an object of the present invention is to significantly reduce the labor for mounting, eliminate looseness and squeak, and achieve beautiful finish and smooth opening and closing.

[0005]

As shown in FIG. 1, an object of the present invention is to provide an upper shaft support 2 having an upper vertical axis 6b fixed to an upper portion of a frame column A or (and) an upper beam of an opening. An upper door support 3 with a closing spring 13 fixed to an upper part of a door B by connecting one end of a closing spring 13 to an upper vertical axis 6b of the upper shaft support 2, and a lower portion (and / or) opening of the frame pillar A. A lower shaft support 4 with a lower vertical axis 6a attached to the floor beam, and a lower door with a bearing hole 7 fitted to the lower vertical axis 6a of the lower shaft support 4 and a rotating ball 10b at its tip and attached to the door. It is characterized in that it is composed of a supporting tool 5.

[0006]

In the above means for solving the problem, the bearing hole 7 is fitted to the lower vertical axis 6a of the lower shaft support 4 and the rotation ball 10b at the tip thereof which is attached to the lower portion of the frame column A or (and) the opening floor crosspiece. Then, while tilting the door a little (there is a slight gap between the lower vertical axis 6a and the bearing hole 7), the upper shaft support 2 is adjusted and fixed to the upper rail A1.

[0007]

EXAMPLE An example of the present invention will be described below with reference to the drawings. This steel hinge is an L-shaped upper mount attached to the upper corner surface of the frame pillar A with a mounting screw as shown in FIG. 1A. 1 and the adjustment slot 1a of the upper fixture 1 as shown in FIG. 1-E
In addition, the circular disk hole 2a is fixed to the opening upper bar A1 by the adjusting fixing screw C, and the upper shaft support 2 with the cylindrical vertical axis 6b, and one end of the closing spring 13 is attached to the upper vertical axis 6b of the upper shaft support 2. Upper door support 3 with a built-in closing spring, which is connected and fixed to the upper part of the door B with a mounting screw, and a lower cylindrical column 6a attached to the lower corner surface of the frame column A or the opening floor bar with a mounting screw The shaft support 4 and the bearing hole 7 fitted to the lower vertical axis 6a of the lower shaft support 4 and attached to the door with a mounting screw 7.
It is composed of an attached lower door support 5.

As shown in FIGS. 5 and 6, one bearing ball 10b for rotation is supported at the tip of the lower vertical axis 6a so as to be rotatable and in a retaining state, and the lower shaft is provided outside the lower vertical axis 6a. One bearing ball door stop ball 10a is rotatably supported on the upper surface body 4a welded to the support tool 4 in a retaining state, and the lower door support tool is on the door opening / closing locus of the door stop ball 10a. 5, circular circular hole 8 with slope 8a,
The door B is formed with a 90-degree stop first concave portion 9a and a 180-degree stop second concave portion 9b.

In the above embodiment, when the door B is opened 180 degrees as shown in FIG. 1-D from the closed state of the door B shown in FIG. 1-B, the door provided on the lower shaft support 4 is shown. The stop ball 10a sequentially escapes from the circular arc-shaped hole 8 and the 90-degree stop first concave portion 9a of the door B (the door slightly lifts),
By entering the weight of the door into the second recess 9b for 0 degree, the door B
Is held stopped.

Further, when the door B is returned by hand, the ball 10a enters the 90-degree first concave portion 9a at a position of 90 degrees and stops as shown in FIG. 1-C.

Further, when the door B is returned by hand, the ball 10a
Enters into the circular arc shaped hole 8 and is automatically closed by the action of the spiral spring closing spring 13. At this time, the ball 10a is in the circular hole 8.

In order to make the door B rotate smoothly, the lower half of the ball 10b is embedded in the recessed end of the lower vertical shaft 6a provided on the lower shaft support 4 and the upper half thereof is exposed. It is locked so that it can rotate freely.

Further, the cover 11 of the upper door support 3 shown in FIG.
In the rear view except for (FIG. 1-A), a groove 12 is formed on the upper vertical axis 6b protruding from the upper shaft support 2, and the groove 12 is formed.
The end of the mainspring-type closing spring 13 is inserted in the other end, and the other end is hooked on the screw rod 15 screwed into the locking body 14 attached to the upper door support 3 to automatically close the door B. Are formed. The automatic closing speed can be freely adjusted by adjusting the screw rod 15.

Further, regarding the method of suspending the door B, at the position where the door B is opened at 90 degrees, the lower door support 5 is fitted into the lower shaft support 4 attached to the frame pillar A and the floor cross, Next, when the upper door support 3 and the upper shaft support 2 are rotated 90 degrees, the stop pin 17 is penetrated from the lower side into the small hole 16 formed in the upper shaft support 2 and the pin 17 The outer peripheral surface 3 of the upper door support 3
While being fixed by abutting against a (preventing the door from being closed by the action of the closing spring 13), while slightly tilting the door (there is a slight gap between the lower vertical axis 6a and the bearing hole 7),
The upper shaft support 2 is slid into the upper side 1b of the upper fixture 1 and the adjustment fixing screw C is inserted into the adjustment long hole 1a of the upper fixture 1 into the disc hole 2a as shown in FIG. 1E. It can be easily carried out by removing the stop pin 17 after fixing while adjusting to.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

For example, a rotating ball which contacts the tip end surface of the lower vertical axis of the lower shaft support may be mounted on the bottom surface of the bearing hole (corresponding to claim 2). Further, the upper shaft support may be attached only to one of the frame pillar and the opening upper rail, or the lower shaft support may only be attached to one of the frame pillar and the opening floor rail.

[0017]

As is apparent from the above description, in the present invention, since the lower door support and the lower shaft support are only fitted to the lower vertical axis and the bearing hole, it is very easy to suspend the door. Therefore, the labor can be greatly saved. Further, since the weight of the door is left to the lower shaft support of the floor through the lower vertical axis, the looseness and squeak of the door are eliminated.

Further, the upper shaft support with the upper vertical axis is fixed to the opening upper crosspiece with an adjusting fixing screw which is penetrated through the adjusting long hole of the L-shaped upper mounting member mounted on the upper corner surface of the frame column. For example, door adjustment and removal can be performed with a single adjusting and fixing screw, which has an excellent effect such as beautiful finish and smooth opening and closing.

[Brief description of drawings]

FIG. 1A is a perspective view of a frame pillar and a door attached to an embodiment of the present invention.

FIG. 1-B is a plan view of the same frame pillar with a door closed.

FIG. 1-C is a plan view showing a state where the door is opened 90 degrees with respect to the same frame pillar.

FIG. 1D is a plan view showing a state where the door is opened 180 degrees with respect to the same frame pillar.

FIG. 1-E is a sectional view of the shaft support and the like.

FIG. 2 is a rear perspective view of the upper shaft support of the embodiment.

FIG. 3 is an exploded rear perspective view of the upper door support of the embodiment except for a cover.

FIG. 4 is a perspective view of the lower shaft support of the embodiment.

FIG. 5 is a rear perspective view of the lower door support of the embodiment.

FIG. 6 is a rear view of the same embodiment with the cover of the upper door support removed.

[Explanation of symbols]

 A frame column A1 opening upper bar B door C adjustment fixing screw 1 upper fixture 1a adjustment slot 2 upper shaft support 3 upper door support 3a outer peripheral surface 4 lower shaft support 4a top body 5 lower door support 6a lower vertical Axis 6b Upper vertical axis 7 Bearing hole 8 Circular hole 9a First concave portion 9b Second concave portion 10a Door stopping ball 10b Rotating ball 13 Closing spring 16 Small hole

Claims (5)

[Claims] 1. An upper shaft support with an upper vertical axis fixed to an upper part of a frame column and / or an opening upper rail, and an upper part of a door in which one end of a closing spring is connected to the upper vertical axis of the upper shaft support. Upper door support fixture with a closed spring fixed to the lower column, a lower shaft support with a lower vertical axis attached to the lower part of the frame column and / or the opening floor rail, and a lower vertical axis of the lower shaft support and its tip. An automatic door hinge, which comprises a lower door support with a bearing hole that is fitted to the rotating ball and attached to the door. 2. An upper shaft support with an upper vertical axis fixed to an upper part of a frame column or / and an upper bar of an opening, and an upper part of a door in which one end of a closing spring is connected to the upper vertical axis of the upper shaft support. Upper door support tool with a closed spring fixed to the bottom, a lower shaft support tool with a lower vertical axis attached to the lower part of the frame column and / or the opening floor rail, and a tip surface of the lower vertical axis of the lower shaft support tool. An automatic hinge for a door, which comprises a lower door support attached to the door with a bearing hole fitted to the lower longitudinal axis and having a rotating ball that hits the door. 3. A ball for rotation is rotatably supported at the tip of the lower longitudinal axis of the lower axis of the claim 1 in a state of being retained, and one ball is provided on the upper surface of the lower shaft support outside the lower vertical axis. The door stopping ball is rotatably supported in a retaining state, and a circular hole and a first recess are formed in the lower door support on the door opening / closing locus of the door stopping ball at intervals. The automatic hinge of the door, which is characterized by that. 4. The upper shaft support with an upper vertical axis according to claim 1, wherein an adjustment fixing screw is penetrated through an adjustment long hole of an L-shaped upper mount attached to an upper corner surface of the frame column to open the upper support. An automatic door hinge that is fixed to a crosspiece. 5. A small hole is pierced at a location of the upper shaft support corresponding to the outer peripheral surface of the upper door support when the upper door support and the upper support are rotated by a predetermined angle. The automatic hinge of the door, which is characterized by that.