JP3061654U - Hinge structure for metal door - Google Patents

Abstract

(57) [Problem] It is unnecessary to position a cylindrical body that serves as upper and lower bearings of a hinge, and when these upper and lower bearings are fixed to a metal door by welding, welding marks hardly remain.
Even if a welding mark appears on the front side of the door, it becomes a small point and a hinge structure for a metal door that does not require post-processing by a grinder or the like is provided. SOLUTION: An upper bearing 1 and a lower bearing 2 are integrated by a connecting body 6. A stud bolt 16
Is provided with a bolt insertion hole 15 through which the hole passes. The stud bolt 16 is spot-welded to the metal door 101, and the connecting body 6 is fixed to the metal door 101 with the nut 18. Central bearing 4
Is provided with a fixing body 3 for fixing to a structure 102 such as a metal frame, and a bolt 14 is fixed to this fixing body, and a nut 2
Fixed at 0. The pivotable hinge structure is obtained by passing the shaft body 5 through the upper, middle, and lower bearings 1, 2, and 4.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hinge structure for a metal door.

[0002]

[Prior art]

 Conventionally, a hinge structure as shown in FIG. 4 has been employed to rotatably attach a metal door to a wall or the like of a structure. In this hinge structure, tubular bodies b and c serving as bearings for the upper and lower hinges are welded to a metal door a. On the other hand, on the wall d of the structure, a U-shaped fixed body e is fixed with bolts f, and a cylindrical body g formed integrally with the fixed body e is attached to the upper and lower cylindrical bodies b and c. It is arranged in between and the shaft body h is inserted.

In this hinge structure, since the tubular members b and c serving as the upper and lower bearings are fixed to the back surface of the metal door a by welding, the welding marks are also formed on the front side of the metal door a. Will appear. In particular, since the tubular bodies b and c are welded, the welding marks have substantially the same size as the tubular bodies b and c. Therefore, polishing with a grinder or the like is necessary to eliminate welding marks on the front side.

In welding, the cylindrical members b and c serving as upper and lower bearings are separately welded to a metal door a. In order to obtain good hinge rotation, the shafts of the two members b and c are required. Positioning must be performed accurately so that the directions are exactly aligned on a straight line, and welding requires labor.

[0005]

[Problems to be solved by the invention]

 Therefore, in the present invention, when the tubular body serving as the upper and lower bearings is fixed to the metal door by welding, welding marks are less likely to remain, and even when welding marks appear on the front side, they become relatively small points. The company will not provide hinge structures for metal doors that do not require post-processing. Also, there is no need to provide positioning between the cylindrical bodies serving as the upper and lower bearings, and a hinge structure for a metal door that enables quick mounting work is not provided.

[0006]

[Means for Solving the Problems]

 In the first invention of the present application, the upper and lower bearings 1 and 2 of the hinge are fixed to the metal door 101 by welding, and the center bearing 4 disposed between the upper and lower bearings 1 and 2 is fixed to a metal frame or the like. In the hinge structure for the metal door 101 in which the shaft 5 is inserted through the upper, middle and lower bearings 1, 4 and 2, the upper bearing 1 and the lower bearing 2 are fixed. A bolt insertion hole 15 through which a stud bolt 16 passes is provided in the connection body 6, the stud bolt 16 is fixed to the metal door 101 by spot welding, and the stud bolt 16 is inserted through the bolt. A hinge structure for the metal door 101 characterized in that the connecting body 6 is fixed between the metal door 101 and the nut 18 by being screwed into the nut 18 through the hole 15. I do. According to a second invention of the present application, in the hinge structure for a metal door according to the first invention, the center bearing 4 has a fixed body 3 for fixing to a structure 102 such as a metal frame. Then, in a cross section where the fixed body 3 intersects with the axial direction of the pivot axis of the hinge, a first wall surface 11 extending from the center bearing, a second wall surface 12 bent from the first wall surface 11 and a second It has a substantially U-shape consisting of a third wall surface 13 bent and extending from the wall surface 12, and a bolt 14 inserted into a structure such as a metal frame is fixed to the third wall surface 13, and An intermediate arm 6 connects the upper arm 7 extending from the upper bearing 1 in the direction intersecting with the axial direction of the pivot axis of the hinge, the lower arm 8 extending from the lower bearing 2 in the same direction, and the upper and lower arms 7.8. The receiving space 10 for receiving the fixed body 3 includes the upper arm 7, the lower arm 8, and the intermediate arm 9. It was partitioned formed surrounded by me to provide those characterized by.

[0007]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a hinge structure for a metal door according to one embodiment of the present invention, and FIG. 2 is a diagram showing a hinge structure for a metal door of FIG. 3 is a plan view of the hinge structure for a metal door in the state of FIG.

The hinge structure is such that a metal door 101 is fixed to a structure 102 such as a metal frame. On the door 101 side, an upper tubular body 1 and a lower tubular body serving as upper and lower bearings are provided. 2 is fixed. On the structure 102 side, a U-shaped fixed body 3 is fixed by bolts, and a middle cylindrical body 4 serving as a central bearing is integrally formed with the fixed body 3. A middle tubular body 4 is arranged between the upper tubular body 1 and the lower tubular body 2, and a shaft 5 is rotatably inserted into each of the tubular bodies 1, 2, 4.

The upper tubular body 1 and the lower tubular body 2 are formed integrally with the connecting body 6 so that the positional relationship between the upper tubular body 1 and the lower tubular body 2 is fixed. Specifically, the upper arm 7 extends from the upper tubular body 1 in a direction intersecting with the axial direction of the pivot axis of the hinge. Similarly, the lower arm 8 extends from the lower tubular body 2 in a direction intersecting the axial direction of the pivot axis of the hinge. The upper cylindrical body 1 and the lower cylindrical body 2 are integrated by connecting the ends 7 and 8 of both arms by an intermediate arm 9. A receiving space 10 for receiving the fixed body 3 is defined by being surrounded by the upper arm 7, the lower arm 8, and the intermediate arm 9. The connecting body 6 has four bolt insertion holes 15 formed in the upper arm 7 and the lower arm 8, two each. However, an appropriate number of the bolt insertion holes 15 may be provided at appropriate locations of the connector 6 on condition that the connector 6 can be securely fixed to the metal door 101.

Next, the middle cylindrical body 4 is formed integrally with the fixed body 3. The fixed body 3 has a first wall surface 11 extending from the middle cylindrical body 4, a second wall surface 12 bent from the first wall surface 11, and a second wall 12 extending in a cross section intersecting the axial direction of the hinge rotation axis. It has a substantially U-shape including a third wall surface 13 which bends and extends from the second wall surface 12, and a bolt 14 inserted into a structure 102 such as a metal frame is fixed to the third wall surface 13.

At the time of mounting, the fixed body 3, the connecting body 6 and the shaft body 5 are constructed separately. When attaching the connecting body 6 to the metal door 101, first, the stud bolt 16 is fixed to the back surface of the metal door 101 by spot welding. Since the stud bolt 16 can be welded by spot welding as described above, the welding area is small, welding marks are less likely to appear on the front side of the metal door 101, and welding marks 17 appear on the front side. Even in such a case, the points are relatively small, and post-processing by a grinder or the like is not required. The stud bolt 16 is passed through the bolt insertion hole 15 of the connecting body 6 and fastened and fixed with a nut 18. As described above, since the upper tubular body 1 and the lower tubular body 2 are formed integrally with the connecting body 6, only by fixing the connecting body 6 to the metal door 101 as described above, The positional relationship between the body 1 and the lower cylindrical body 2 is determined, and the axis of rotation does not shift.

On the other hand, a bolt insertion hole 19 is formed in a structure 102 such as a metal frame, and the bolt 14 of the fixed body 3 is passed through the bolt insertion hole 19 and fastened and fixed with a nut 20. Then, the metal door is lifted and arranged so that the upper tubular body 1 and the lower tubular body 2 are located above and below the middle tubular body 4, respectively. The shaft body 5 is inserted between 4 and 2, and the hinge installation of the door is completed.

The connecting body 6 has a receiving space 10 for receiving the fixed body 3 defined by being surrounded by the upper arm 7, the lower arm 8, and the intermediate arm 9. Even when the door 101 is turned by 180 degrees, since the fixed body 3 enters the receiving space 10, the connecting body 6 and the fixed body 3 can be rotated without directly hitting each other.

The invention of the present application can be appropriately modified and implemented within the scope of the utility model registration claim. For example, in the above-described embodiment, the bearings are implemented as three upper, middle, and lower bearings. , And may be changed to an appropriate number of four or more. Also, the shape and structure of the connecting body and the fixed body can be freely changed and implemented for shapes other than those defined in the claims.

[0015]

[Effect of the invention]

 As described above, according to the first invention of the present application, when the tubular body serving as the upper and lower bearings is fixed to the metal door by welding, welding marks hardly remain, and even when welding marks appear on the front side, they are relatively small. Thus, a hinge structure for a metal door, which does not require post-processing by a grinder or the like, can be provided. In addition, this hinge structure for a metal door has the advantage that positioning between the cylindrical bodies serving as the upper and lower bearings is not required, and a quick mounting operation becomes possible. The second invention of the present application is to provide a metal door that can rotate without directly hitting the connecting body and the fixed body even when the metal door is largely rotated, in addition to the above effects. Thus, a hinge structure can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hinge structure for a metal door according to an embodiment of the present invention.

FIG. 2 is a perspective view of the hinge structure for a metal door shown in FIG. 1 in a state where a connecting body 6 is rotated by 180 degrees.

FIG. 3 is a plan view of a hinge structure for a metal door in the state of FIG. 2;

FIG. 4 is a perspective view of a conventional hinge structure for a metal door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper bearing 2 Lower bearing 3 Fixed body 4 Center bearing 5 Shaft body 6 Connection body 7 Upper arm 8 Lower arm 9 Intermediate arm 10 Reception space 11 1st wall surface 12 2nd wall surface 13 3rd wall surface 14 Bolt 15 Bolt insertion hole Reference Signs List 16 stud bolt 17 welding mark 18 nut 101 metal door 102 structure such as metal frame

Claims (2)

[Utility model registration claims] An upper and lower bearing (1, 2) of a hinge is fixed to a metal door (101) by welding, and a central bearing (4) arranged between the upper and lower bearings (1, 2). ) Is fixed to a structure (102) such as a metal frame, and in a hinge structure for a metal door (101) in which a shaft (5) is inserted through bearings (1, 4, 2) above and below. The upper bearing (1) and the lower bearing (2) are integrated by a connector (6), and the connector (6) is provided with a bolt insertion hole (15) through which a stud bolt (16) passes. , Metal doors (10
A stud bolt (16) is fixed to 1) by spot welding, and a stud bolt (16) is attached to the bolt insertion hole (15).
The metal door (10) is characterized in that the connector (6) is fixed between the metal door (101) and the nut (18) by being screwed into the nut (18) through the
Hinge structure for 1). 2. A center bearing (4) has a fixed body (3) for fixing to a structure (102) such as a metal frame, and the fixed body (3) is provided with a hinge pivot shaft. In a cross section that intersects the axial direction, the first wall surface (1
1), a second wall surface (12) that bends and extends from the first wall surface (11), and a third wall surface that bends and extends from the second wall surface (12).
A bolt (14) inserted into a structure such as a metal frame is fixed to the third wall (13), and the connecting body (6) is fixed to the third wall (13). An upper arm (7) extending from the upper bearing (1) only in a direction intersecting with the axial direction of the pivot axis of the hinge; a lower arm (8) extending from the lower bearing (2) in the same direction; 7.8), and a receiving space (10) for receiving the fixed body (3) is surrounded by the upper arm (7), the lower arm (8) and the intermediate arm (9). 2. The hinge structure for a metal door according to claim 1, wherein the hinge structure is formed by partitioning.