JP2000328831A - Pivot hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pivot hinge which has a simple structure, can be installed in the same procedure even when the same door body is installed in a different opening and closing direction without easily dislocating the door body by the impact. SOLUTION: A pivot hinge 1 comprises an almost circular columnar hinge pin 2 provided with linking grooves 2A, 2B, 2C, 2D near both end portions, a lever pin 3 provided almost at an intermediate portion of the hinge pin 2, leaf-shaped springs 4, 4 respectively inserted to linking grooves 2A, 2B and 2C, 2D of the hinge pin 2, and a hinge main body 5 for housing the above; in this hinge main body 5, hinge pin inserting holes 6, 6 with both the end portions of the hinge pin 2 projectable, groove 7 for lever pin movable in a direction of the hinge pin inserting holes 6, 6 with the lever pin 3 insertable, and attaching portions 8, 8 for attaching the hinge main body 5; and in the groove 7 for lever pin, lever pin fixing portion 9, 9 for fixing the lever pin 3, and linking portions 9A, 9B for linking the lever pin 3 with the lever pin fixing portions 9, 9 are provided and the lever pin 3 is located almost at the middle portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot hinge used for opening and closing a door such as a box.

[0002]

2. Description of the Related Art Conventionally, a pivot hinge used for opening and closing a door body such as a box body is as shown in FIGS. That is, the pivot hinge 51 has a hinge pin 53 mounted on a substantially L-shaped hinge body 52, is screwed to an upper corner of one side end of the door body 54 with a screw or the like, and a rivet pin is provided at a lower end. After the rivet pin 55 is pivotally supported in the insertion hole 59B of the box body 59, the hinge pin insertion hole 56 provided in the hinge body 52 of the door body 54 and the hinge pin insertion hole 56 and the door body 54 are provided. With the hinge pin 53 not protruding from the hinge pin insertion hole 57 against the urging force of the coil spring 58, the door body 54 is temporarily attached to the box body 59, and then the hinge pin 53 is protruded by the urging force of the coil spring 58 to make the box. The door 54 was attached to the box body 59 by pivotally supporting the insertion hole 59A of the body 59.

[0003]

However, according to the pivot hinge 51, if the opening / closing direction of the door body 54 is changed with the same door body 54, the mounting order is reversed.
There is a drawback that the mounting work of the door body 54 becomes very complicated. Further, since the hinge pin 53 of the pivot hinge 51 is relied only on the coil spring 58, there is a drawback that the door is very weak against impact and the door 54 may come off.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional pivot hinge, an object of the present invention is to provide a simple structure with the same door body and to install the door body in the same manner even if the opening / closing direction of the door body is changed. A hinge hinge that provides an engagement groove near both ends, and a lever pin that is provided substantially in the middle of the hinge pin. The hinge body includes a plate-shaped spring inserted into the engagement groove of the hinge pin, and a hinge body for accommodating the springs.The hinge body has a hinge pin insertion hole through which both ends of the hinge pin can protrude, A lever pin groove through which a lever pin can be inserted and movable in the hinge pin insertion hole direction;
A mounting portion for mounting a hinge body is provided, and a lever pin fixing portion for fixing the lever pin and a locking portion for locking the lever pin at the lever pin fixing portion are appropriately provided in the lever pin groove, and substantially The lever pin is disposed on the portion, and the lever pin is slid along the lever pin groove to be locked and fixed at the locking portion of the lever pin fixing portion, and the hinge pin projects from the hinge pin insertion hole of the hinge body. That is, it is formed so as to be fixable in a state where it is set.

Further, in the pivot hinge, a plate-shaped spring mounted on the hinge pin is formed at one point, and is formed so as to be usable for biasing the opposite hinge pin.

[0006]

According to the pivot hinges of the present invention, the hinges are fixed to the upper and lower corners of one side end of the door by screws or the like, and the lever pins extend along the lever pin grooves of the hinge body. And the hinge pin is locked and fixed with the locking portion of the lever pin fixing portion, so that the hinge pin is fixed in a state protruding from the hinge pin insertion hole of the hinge body, and the insertion hole of the box body to which the door body is attached. Pivoted on. Since the hinge pin is urged toward the center of the hinge body by a plate spring, when the locking of the lever pin is released from the locking portion of the lever pin fixing portion, the lever pin moves to the center of the lever pin groove and stops. .

[0007]

1 to 4 show a first embodiment of a pivot hinge according to the present invention. Hereinafter, the present invention will be described with reference to these drawings.

A pivot hinge 1 has an engagement groove 2 near both ends.
A substantially cylindrical hinge pin 2 provided with A, 2B, 2C, 2D
And a lever pin 3 provided substantially in the middle of the hinge pin 2.
And plate-like springs 4 and 4 respectively inserted into the engagement grooves 2A and 2B and 2C and 2D of the hinge pin 2, and a hinge body 5 for housing these springs. Hinge pin insertion holes 6 and 6 from which both ends of
A lever pin groove 7 through which the hinge pin can be inserted and movable in the direction of the hinge pin insertion holes 6 and 6 and mounting portions 8 and 8 for mounting the hinge body 5 are provided, and the lever pin 3 is fixed to the lever pin groove 7. Fixing portions 9A, 9A, and locking portions 9A for locking the lever pins 3 with the lever pin fixing portions 9,
9B, and the lever pin 3 is arranged at a substantially intermediate portion.

The pivot hinges 1 and 1 are fixed to upper and lower corners of one side end of the door body 10 by screws or the like, and slide the lever pin 3 along the lever pin groove 7 of the hinge body 5 to fix the lever pin fixing portion. 9, the hinge pin 2 is fixed in a state where the hinge pin 2 projects from the hinge pin insertion holes 6 and 6 of the hinge body 5, and the door body 1 is fixed.
0 to which the insertion holes 11A, 11 of the box body 11 are attached.
B is pivoted. Since the hinge pin 2 is urged toward the center of the hinge body 5 by the plate springs 4 and 4, when the locking of the lever pin 3 is released from the locking portion 9 </ b> A of the lever pin fixing portion 9, the lever pin 3 becomes a lever pin. It moves to the center of the groove 7 and stops.

A second embodiment of the pivot hinge according to the present invention is shown in FIGS. Hereinafter, the present invention will be described with reference to these drawings.

The pivot hinge 21 includes a substantially cylindrical hinge pin 22 having engagement grooves 22A and 22B near both ends, a lever pin 23 provided at a substantially intermediate portion of the hinge pin 22,
It is composed of a plate-like spring 24 inserted into the engagement grooves 22A and 22B of the hinge pin 22, and a hinge body 15 for storing these.
The hinge body 15 has hinge pin insertion holes 26, 26 through which both ends of the hinge pin 12 can protrude, a lever pin groove 27 through which the lever pin 23 can be inserted and is movable in the direction of the hinge pin insertion holes 26, 26, and a hinge. Mounting portions 28 for mounting the main body 25 are provided, and lever pin fixing portions 29 for fixing the lever pin 23 are provided in the lever pin groove 27.
And the lever pin fixing portions 29, 29
Are provided, and the lever pin 23 is disposed at a substantially intermediate portion.

The pivot hinges 21, 21 are fixed to upper and lower corners at one side end of the door body 30 by screws or the like, and extend along the lever pin grooves 27 of the hinge main body 25.
To lock part 29A of lever pin fixing part 29
The hinge pin 22 is fixed in a state where the hinge pin 22 projects from the hinge pin insertion holes 26, 26 of the hinge body 25, and the box body 3 to which the door body 30 is attached.
It is pivotally supported by one insertion hole 31A, 31B. Hinge pin 22
Is urged toward the center of the hinge body 25 by the plate spring 24, so that the locking portion 29A of the lever pin fixing portion 29 is
When the locking of the lever pin 23 is released, the lever pin 23 moves to the center of the lever pin groove 27 and stops.

[0013]

As described above, the pivot hinge according to the present invention comprises a substantially cylindrical hinge pin, a lever pin provided at a substantially intermediate portion of the hinge pin, and coil springs respectively inserted from both ends of the hinge pin. And a hinge body for accommodating them. The hinge body has a hinge pin insertion hole through which both ends of the hinge pin can protrude, and the lever pin is insertable and movable in the hinge pin insertion hole direction. A groove for a lever pin and a mounting portion for mounting a hinge body, a lever pin fixing portion for fixing a lever pin is appropriately provided in the groove for the lever pin, and the lever pin is disposed at a substantially intermediate portion, and the groove for the lever pin is provided. The lever pin is slid along and fixed at the lever pin fixing portion, and the hinge pin can be fixed while protruding from the hinge pin insertion hole of the hinge body. By forming the a simple structure, has the effect of also accommodate door open to the left and right both side of one kind, parts management by sharing the components has an effect that it becomes easier.

Further, in the pivot hinge, the same effect can be obtained by integrally forming the hinge pin and the lever pin.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a first embodiment of a pivot hinge according to the present invention.

FIG. 2 is an explanatory view of a first embodiment of a pivot hinge according to the present invention.

FIG. 3 is an explanatory view of the use of the first embodiment of the pivot hinge according to the present invention.

FIG. 4 is an explanatory view of use of the first embodiment of the pivot hinge according to the present invention.

FIG. 5 is an explanatory view of a second embodiment of the pivot hinge according to the present invention.

FIG. 6 is an explanatory view of a second embodiment of the pivot hinge according to the present invention.

FIG. 7 is an explanatory view of use of a second embodiment of the pivot hinge according to the present invention.

FIG. 8 is an explanatory view of use of a second embodiment of the pivot hinge according to the present invention.

FIG. 9 is an explanatory view of a conventional pivot hinge.

FIG. 10 is an explanatory view of a conventional pivot hinge and a rivet pin.

FIG. 11 is a diagram illustrating the use of a conventional hinge.

[Explanation of symbols]

 Reference Signs List 1 pivot hinge 2 hinge pin 2A engagement groove 2B engagement groove 2C engagement groove 2D engagement groove 3 lever pin 4 plate spring 5 hinge body 6 hinge pin insertion hole 7 lever pin groove 8 mounting part 9 lever pin fixing part 9A locking Part 9B Locking part 10 Door body 11 Box body 11A Insertion hole 11B Insertion hole

Claims (2)

[Claims] 1. A substantially cylindrical hinge pin having engagement grooves near both ends, a lever pin provided at a substantially intermediate portion of the hinge pin, and a leaf spring inserted into the engagement groove of the hinge pin. When,
A hinge body for accommodating them, a hinge pin insertion hole through which both ends of the hinge pin can protrude,
A lever pin groove through which the lever pin can be inserted and movable in the direction of the hinge pin insertion hole, and a mounting portion for mounting a hinge body; a lever pin fixing portion for fixing the lever pin in the lever pin groove; A locking portion for locking the lever pin is appropriately provided at a lever pin fixing portion, the lever pin is disposed at a substantially intermediate portion, and the lever pin is slid along the lever pin groove to lock the lever pin fixing portion. A pivot hinge, wherein the hinge pin is locked and fixed at a portion, and the hinge pin is formed so as to be fixable in a state protruding from a hinge pin insertion hole of the hinge body. 2. The pivot hinge according to claim 1, wherein a plate-like spring attached to the hinge pin is formed at a single point, and is formed so as to be usable for biasing the hinge pin on the opposite side. Pivot hinge described.