JPH0586767A - Hinge - Google Patents

Abstract

PURPOSE:To provide an inexpensive hinge which has a simple structure and which can be easily manufactured, by providing a cam mechanism for converting the dead weight of a door into a torque for rotating the door in its opening or closing direction between a frame side support member attached to a door frame and a door side support member attached to the door. CONSTITUTION:In a condition in which a door 5 closes an entrance 2, a projection formed at a loading surface 13 of a second cylinder 9 attached to the door 6 abuts against a trough formed in a receiving surface of a first cylinder 8 attached to a vertical frame 3 of a fence 1 so that the door 5 can be stably stopped. When the door 5 is opened toward the inside 7 of the fence 1, the second cylinder 9 is rotated around its axis, relative to the first cylinder 8 while it slides on and ascends along an inclined surface 12b on the receiving surface 12 of the first cylinder 8. In this condition, when the door 5 is released in this condition, the second cylinder 9 slides down along the inclined surface 12b of the first cylinder 9 by a force component which is given by the dead weight of the door 5 along the inclined surface 12b, and accordingly, the door 5 is led in its closing direction. Finally, the door comes to a stop in a closed condition in which the projection of the second cylinder 9 abuts against the trough of the first cylinder 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for rotatably attaching a fitting such as a door to a fitting frame,
Specifically, the frame side pivot member provided on the door frame is provided with a mounting surface on which the door side pivot member provided on the door is placed, and the frame side pivot member and the door side pivot member are provided on the same axis. TECHNICAL FIELD The present invention relates to a hinge formed by being rotatably fitted and connected around a core.

[0002]

2. Description of the Related Art Conventionally, there has been a hinge of this kind for the purpose of pivotally supporting a door with respect to a door frame. However, if it is only pivotally supported, the door is often left open if you forget to close it.
For example, in the case of an entrance / exit door of an air-conditioned room, if it is left open, there is a problem that outside air enters the room and the air conditioning effect is reduced. In order to eliminate such an inconvenience, there has been one in which a spring is incorporated in the hinge or a motor is connected so that the door can be closed without forgetting to close the door.

[0003]

However, in the case where the spring is incorporated in the hinge, it takes a lot of time to assemble the spring in the hinge and the number of parts is increased.
It has the disadvantage of high cost. On the other hand, the electric type in which the motor is connected to the hinge has the disadvantages that the structure is complicated, the manufacturing labor is expensive, and the cost is high.

In view of the above-mentioned drawbacks, an object of the present invention is to provide an inexpensive hinge which has a simple structure and does not require manufacturing.

[0005]

To achieve this object, the weight of the door is opened between the frame side pivot member provided on the door frame and the door side pivot member provided on the door. The first characteristic configuration of the present invention is that a cam mechanism that converts rotational force in the direction or the closing direction is provided.

Further, according to a second characteristic construction of the present invention, in constructing the cam mechanism, the door-side pivot member is fitted and connected to the frame-side pivot member so as to be vertically movable, There is a slope formed on the mounting portion of the frame-side pivot member on which the door-side pivot member is mounted.

[0007]

According to the first characteristic configuration of the present invention, since the weight of the door is converted into the turning force in the opening direction or the closing direction of the door by the cam mechanism, it is not necessary to use manpower or other driving device. Also, the door can be automatically rotated in the opening direction or the closing direction, and it is possible to prevent forgetting to open or close the door.

According to the second characteristic configuration of the present invention,
Since the slope is formed on the mounting surface of the frame side pivot member, the weight of the door acting from the door side pivot member on the slope of the mounting surface is:
It is decomposed into a component force acting in the direction of inclination along the slope on the mounting surface and a component force acting in the direction orthogonal to the slope. Further, since the door-side pivot member is fitted and connected to the frame-side pivot member so as to be vertically movable and rotatable about the same axis, the axis sides of both the pivot members are A rotation moment is generated by the component force acting in the inclination direction of the slope described above, and the rotation moment causes the door-side pivot member to rotate while sliding down in the inclination direction along the slope of the mounting surface about the axis. Similarly, the door to which the door-side pivot member is attached also rotates. Also, with respect to this rotating direction, if the inclined direction of the slope formed on the mounting surface is set to the opposite side, the rotating direction of the door can be set to the opposite side. It can be opened or closed.

[0009]

Therefore, according to the hinge of the present invention, although the door has a function of automatically rotating in the opening direction or the closing direction, the structure thereof is simple, and the manufacturing work is troublesome. As a result, it is possible to reduce costs and improve economic efficiency.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a situation in which doors 5 are attached to a vertical frame 3 of a doorway 2 provided on a continuous fence 1 at two upper and lower positions via hinges 4. The hinge 4 is formed so that the door 5 can be opened and closed in both directions, on the front side 6 side and the back side 7 side of the fence 1, and when the door 5 is opened on either side, it automatically closes. It is formed so as to rotate and stop at the closed position. Further, when the door 5 is opened until the opening angle becomes an obtuse angle, the automatic closing bias is released, and when the door 5 is opened to a larger angle, the rotation of the door 5 can be temporarily fixed.

The structure of the hinge 4 which supports each of the above operations will be described with reference to the perspective view of FIG. Hinge 4
A first tubular body 8 that is an example of a frame side pivotal support member that is attached to the vertical frame 3, a second tubular body 9 that is an example of a door side pivotal support member that is attached to the door 5, and an internal fitting to both tubular bodies. Further, it is constituted by a round bar 10 serving as a pivot shaft for rotating the second tubular body 9 with respect to the first tubular body 8.

The round bar 10 is joined at its one end to the lower end of the first cylindrical body 8 by welding, for example, in order to prevent the round bar 10 from falling out while being fitted in both cylindrical bodies. Further, the first tubular body 8 and the second tubular body 9 are provided with support plates 11a, 11 for attaching the vertical tubular body 3 and the door 5, respectively.
b is attached separately.

Next, the shape of the mounting surface 12 of the first cylindrical body 8 on which the second cylindrical body 9 is mounted and the mounting surface 13 of the second cylindrical body 9 are placed.
The shape will be described with reference to FIGS. 3, 4, and 5.

First, FIG. 3 shows the hinge 4 when the door 5 is closed.
4 is a side view of the first tubular body 8 when FIG. 4 is a temporarily fixed state after the fan 5 is opened, and FIG. 5 is a top view of the first tubular body 8.

The first tubular body 8 and the second tubular body 9 are, as shown in the figure, one tubular body at the middle portion in the longitudinal direction.
A plane inclined at an acute angle with respect to the axial direction is formed by cutting into two pieces. That is, one of the two pieces is
It is used as the second tubular body 9 whose cut surface is the mounting surface 13, and the other piece is formed on the first tubular body 8 in which a part of the cut surface is the slope 12b of the mounting surface 12. There is. Therefore,
The mounting surface 13 of the second tubular body 9 and the inclined surface 12b of the mounting surface 12 of the first tubular body 8 are both formed by planes that are inclined at an acute angle with respect to the axial direction in both tubular states. There is.

Next, the operation of the hinge 4 accompanying the opening and closing of the door 5 will be described. FIG. 3 illustrates the hinge 4 when the door 5 is in the closed state in which the doorway 2 is closed, as a side surface viewed from the front 6 direction of the fence 1, and shows the mounting surface 12 of the first tubular body 8. Tanibe 12
The protrusion 13a of the mounting surface 13 of the second tubular body 9 is brought into contact with a and is stopped in a stable state. When the door 5 is opened to the back 7 side of the fence 1, the second tubular body 9 attached to the door 5 rotates around the axis with respect to the first tubular body 8 fixed to the vertical frame 3. Meanwhile, it slides up along the slope 12b of the mounting surface 12 of the first tubular body 8.

In this state, when the door 5 is released, the second cylindrical body 9 moves along the sloped surface 12b of the first cylindrical body 8 in the opposite direction to the tip by the component force along the sloped surface 12b of the weight of the door. Sliding down,
The door 5 is automatically guided in the closing direction. Then, finally, the projecting portion 13a of the second tubular body 9 is replaced by the valley portion 12a of the first tubular body 8.
It returns to the above-mentioned closed state where it abuts against and stops. Like this
The automatic closing urging force of the door 5 acts when the second tubular body 9 is in contact with the slope 12b of the first tubular body 8 and a component force is generated along the slope 12b of the dead weight of the door.

Furthermore, when the door 13 is opened in the door opening direction and the protruding portion 13a of the second tubular body 9 rides on a horizontal plane provided on the mounting surface 12 of the first tubular body 8, the weight of the door itself is reduced. Since the component force along the horizontal plane is eliminated, the automatic closing bias is released, and the door 5 can be stopped at any position in the range where the door opening angle is obtuse.

Next, as shown in FIGS. 4 and 5, the mounting surface 12 of the first tubular body 8 is provided with a cutout portion 12c in the middle of the horizontal plane, and the cutout portion 12c is formed. Second
When the protrusion 13a of the tubular body 9 is locked, the rotation of the second tubular body 9 with respect to the first tubular body 8 is restrained in that state, and the door 5 can be temporarily fixed in a limited position.

[Other Embodiment] Another embodiment will be described below.

Either the first tubular body 8 or the second tubular body 9 of the previous embodiment may be provided with a pivot shaft that functions as the round rod 10. The mounting surface 12 of the first tubular body 8 and the mounting surface 13 of the second tubular body 9 are
The shape of the mounting surface 13 of the second tubular body 9 is not limited to the shape of the above-described embodiment.
It is also possible to make the closing speed at the beginning of closing the door 5 faster by partially changing the inclination degree of the slope 12b for the mounting surface 12 shape of the first tubular body 8 as well. It is also possible to slow down the closing speed at the end of closing so that it can be closed gently.

When the mounting posture of the first tubular body 8 with respect to the vertical frame 3 is rotated by about 90 ° around the axis, the door 5 has an automatic opening bias. It can be used for doors that need to be open after use, such as or bathroom doors.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a diagram showing a mounting state.

FIG. 2 is a perspective view of a hinge

[Fig. 3] Side view (closed state)

FIG. 4 is a side view (temporarily fixed state)

FIG. 5 is a top view of the first tubular body.

[Explanation of symbols]

 3 Door frame 5 Door 8 Frame side pivot member 9 Door side pivot member 12 Placement surface 12b Slope

Claims (2)

[Claims] 1. A frame side pivot member (8) provided on a door frame (3).
Is provided with a mounting surface (12) on which the door side pivot member (9) provided on the door (5) is placed, and the frame side pivot member (8) and the door side pivot member (9) are provided. A hinge formed to be rotatably fitted and connected around the same axis, wherein the door is provided between the frame side pivot member (8) and the door side pivot member (9). A hinge provided with a cam mechanism for converting the own weight of (5) into a turning force for opening or closing the door (5). 2. In the cam mechanism, the door-side pivot member (9) is fitted and connected to the frame-side pivot member (8) so that the door-side pivot member can move up and down. The hinge according to claim 1, wherein an inclined surface (12b) is formed on the (12).