JP2666760B2 - Door hinge structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure of a housing door constituting an outer shape of a communication device.

[0002]

2. Description of the Related Art In some cases, housings forming an outer shape of a communication apparatus are arranged in parallel with the outer surfaces of doors aligned toward a passage. In this case, it is desirable that the housing door be rotated 180 degrees so as not to obstruct the passage. FIGS. 7 to 9 show a conventional door hinge structure which enables such a door to rotate.

FIG. 7 is a perspective view showing a housing provided with a conventional door hinge structure, FIG. 8 is an assembly configuration diagram of a door hinge structure at a lower portion of the housing shown in FIG. 7, and FIG. It is a schematic plan view which shows the opening and closing operation of the door shown in FIG.
(B) shows an open state.

[0004] A housing 101 shown in FIG.
Are rotatably attached by hinges 180 degrees. The hinge 102 is connected to the first plate 10 shown in FIG.
5. L-shaped second plate 104 and rotary shaft screw 1
06 as a main part.

In FIG. 8, a second plate 104 longer than the thickness of the door 103 is fixed to the housing 1 side. A through-hole 104a is formed in a portion of the second plate 104 longer than the thickness of the door 103. On the other hand, a rectangular first plate 105 protrudes from the door 103 to the outside of the door 103, and a through hole 105 is formed at the tip end of the first plate 105.
a is drilled. Then, the first plate 105 and the second plate 104 are connected to each other by a rotary shaft screw 106 so as to be rotatable.
Is configured to be able to rotate 180 degrees.

Therefore, the door 1 shown in FIG.
When the hinge 03 is rotated with respect to the housing 101 from the closed state, the rotation axis of the hinge 102 is positioned outside the door 103, so that the hinge 102 rotates 180 degrees as shown in FIG. 9B. In addition, rotation is not restricted by the door of the adjacent housing.

[0007]

However, in the above-described conventional hinge structure of the door, the hinge portion protrudes from the outer surface of the door, and the outer surface of the door faces the passage after installation. Further, there is a problem that the hinge may be damaged.

In view of the above-mentioned problems of the prior art, the present invention provides a housing in which the outside surface of the door is arranged in parallel with the passage facing the passage without risk of injury or breakage of the hinge portion.
An object of the present invention is to provide a hinge structure of a door that can be rotated by 80 degrees.

[0009]

According to a first aspect of the present invention, there is provided a door hinge structure which allows a door covering an opening of a housing to be rotatable by 180 degrees, which is fixed inside the door. A first plate, a second plate fixed to the outside of the housing, a third plate positioned between the first plate and the second plate, the first plate and the third plate A first rotating shaft rotatably connecting one end of the second plate, a second rotating shaft rotatably connecting the other end of the second plate and the third plate, and a center around the second rotating shaft. Stopping means for stopping the rotation of the third plate.

According to a second aspect of the present invention, there is provided a hinge structure of a door for allowing a door covering an opening of a housing to be rotatable by 180 degrees, comprising: a first plate having a through hole fixed inside the door; A second screw hole fixed to the outside of the housing;
A third plate having a screw hole at one end and a through hole at the other end, and a screw of the third plate passing through the through hole of the first plate; A first connector rotatably connecting the first plate to the third plate by screwing into the hole;
A second shaft for rotatably connecting the third plate to the second plate by screwing into the screw hole of the second plate through a through-hole at the other end of the third plate; A rotation shaft screw, and a stopping means capable of stopping rotation of the third plate about the second rotation shaft;
The stopping means is capable of stopping the rotation of the third plate by screwing a screw to the second plate through the third plate.

[0011]

In the present invention configured as described above, when the door is opened, the third plate is usually fixed to the second plate fixed to the outside of the housing by the stopping means, and
Since the first plate to which the inside of the door is fixed is rotatable with respect to the third plate by the first rotation axis, the door performs only 180-degree rotation about the first rotation axis.

However, since the first rotating shaft is located inside the door, if the housings are arranged side by side with the outer surfaces of the doors aligned, the door rotated about the first rotating shaft is located adjacent to the door. It hits the door of the case.

In this case, when the fixing of the third plate to the second plate is released by the restraining means, the third plate becomes rotatable about the second rotating shaft with respect to the second plate. Is rotated about the second rotation axis and the door is opened about the first rotation axis.
It becomes possible to rotate by degrees.

[0014]

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

FIG. 1 is a perspective view showing a housing provided with an embodiment of a door hinge structure of the present invention, and FIG. 2 is an assembly configuration diagram of a door hinge structure at a lower portion of the housing shown in FIG. is there.

The housing 1 shown in FIG. 1 is arranged side by side with the outside surfaces of the doors 3 aligned, for example, facing the passage portion. The hinges 2 that do not protrude allow rotation by 180 degrees.

The hinge 2 of the present embodiment shown in FIG.
As shown in the figure, the first plate 1 having a through hole 5a fixed inside the door 3, a screw hole 6a at one end, a through hole 6c at the other end, and a center of the screw hole 6a and the through hole 6c. A rectangular third plate 6 having a through-hole 6b in a portion thereof, and a second plate 6 having substantially the same pitch as the two through-holes 6b and 6c of the third plate 6.
An L-shaped second plate 4 in which three screw holes 4a and 4b are formed is provided as a main component.

Then, the first plate 5 is attached to the third plate 6 by screwing a rotary shaft screw 9 as a first rotary shaft into the screw hole 6a of the third plate 6 through the through hole 5a of the first plate 5. The third plate 6 is rotatable, and the third plate 6 is screwed into the screw hole 4 b of the second plate 4 through the through hole 6 c of the third plate 6. The third plate 6 is rotatable with respect to the third plate 6 by screwing a rotation stop screw 8 into the screw hole 4 a of the second plate 4 through the through hole 6 b of the third plate 6.
The stopping means for stopping the rotation of the motor is constituted. In addition,
Each of the through holes 6b and 6c has a counterbore so that the heads of the rotation stop screw 8 and the rotation shaft screw 7 do not project from the plate surface.

Further, the first plate 5 is placed inside the door 3,
The door 3 can be rotated by 180 degrees by fixing the second plate 4 to the outside of the housing 1.

Next, referring to FIGS. 2 and 3 to 6, the operation of opening or using the door 3 by the hinge having the above structure will be described.

FIGS. 3 to 6 are views from above showing how the door of the hinge structure shown in FIG. 2 opens.

FIG. 3 shows a state in which the door 3 is closed with respect to the housing 1. When the door 3 is opened from the closed state in FIG. 3, the third plate 6 is fixed to the second plate 4 fixed to the housing 1 by the rotation set screw 8 and the first plate 5 to which the door 3 is fixed. Is rotatable with respect to the third plate 6 by the rotary shaft screw 9, so that the door 3 is, as shown in FIG.
Only rotation around the rotation shaft screw 9 is performed. In this case, if the door 3 is to be turned 180 degrees from the closed state in FIG. 3, the rotation is restricted by hitting the door of the adjacent housing, so that the door 3 cannot be turned 180 degrees.

In order to rotate the door 3 by 180 degrees, the third plate 6 can be freely rotated by the rotation shaft screw 7 with respect to the second plate 4 by removing the rotation set screw 8. As shown, the third plate 6 is once rotated in the closing direction about
Is opened around the rotation shaft screw 9, the door 3 is turned 180 degrees from the closed state shown in FIG. 3 as shown in FIG. 6 without hitting the door of the adjacent housing.

As described above, in the hinge structure of this embodiment, the door can be normally opened and closed by the rotating shaft positioned within the thickness of the door, and even after the parallel installation, the door of the adjacent housing can be opened and closed. Can be rotated 180 degrees without hitting
Since the hinge does not protrude toward the passage from the outside surface of the door, there is no risk of injury or breakage of the hinge.

Further, in this embodiment, when performing maintenance and inspection of, for example, a communication device or the like in the housings 1 arranged in parallel, the rotation stop screw 8 is removed so that the door 3 does not come into contact with the door of the adjacent housing. The third plate 6 can be stopped by the rotation stop screw 8 so that the rotation axis of the door 3 including the rotation axis screw 9 does not move in the horizontal direction during normal times other than maintenance and inspection. However, the following structure may be adopted in consideration of the operability in the opening operation of the door 3.

That is, when the door is to be rotated by 180 degrees, the second locking plate 8 is easily removed and the second plate is placed at the position of the through hole 6b of the third plate 6 shown in FIG. A concave portion, which holds the rigid sphere urged by an elastic member such as a spring toward the fourth side and is fitted to the rigid sphere at the position of the screw hole 4a on the surface of the second plate 4 on which the third plate 6 is mounted. The formed structure may be used.

With this structure, when the door 3 is normally opened, the third plate 6 is in the second position by the engagement between the recess and the hard sphere.
It is held on the plate 4 and the door 3 is
When it is desired to rotate the rotary shaft 180 degrees without touching the door of the adjacent housing, the third plate 6 or the door 3 is pulled out by a predetermined force to release the engagement state of the hard sphere by the concave portion, and thus the rotation shaft is rotated. The rotation axis of the door 3 made of the screw 9 can be moved in the horizontal direction. Therefore, the doors of the housings installed in parallel can be easily rotated by 180 degrees without the need to remove the screws.

[0028]

As described above, according to the present invention, the door covering the opening of the housing is made rotatable 180 degrees.
A first plate fixed inside the door is connected to one end of the third plate by a first rotation shaft, and the other end of the third plate is connected to a second plate fixed to the outside of the housing by a second rotation. A hinge structure that is connected by a shaft and that can stop the rotation of the third plate about the second rotation shaft is provided, so that the rotation shaft that normally opens and closes the door is within the thickness of the door. And the hinge does not protrude from the outside surface of the door toward the passage, so that there is no danger of injury or breakage of the hinge.

Further, even when a plurality of housings are installed in parallel, the third plate is rotated to move the position of the rotation axis of the door, so that the door can be turned 180 degrees without touching the door of the adjacent housing. Can be rotated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a housing provided with an embodiment of a door hinge structure according to the present invention.

FIG. 2 is an assembly configuration diagram of a hinge structure of a door at a lower portion of the housing shown in FIG. 1;

FIG. 3 is a top view showing a state in which a door having the hinge structure shown in FIG. 2 is opened, and shows a state in which the door is closed.

FIG. 4 is a top view showing a state where the door having the hinge structure shown in FIG. 2 is opened, and shows a state where the door is rotated 90 degrees.

FIG. 5 is a top view showing a state in which a door having the hinge structure shown in FIG. 2 is opened, and shows a state in which a locking screw is removed and the door is rotated.

FIG. 6 is a top view showing a state in which the door having the hinge structure shown in FIG. 2 is opened.
This shows a state where the camera is rotated by 80 degrees.

FIG. 7 is a perspective view showing a housing provided with a conventional door hinge structure.

FIG. 8 is an assembly configuration diagram of a hinge structure of a door on a lower side of the housing shown in FIG. 7;

9 is a schematic plan view showing the opening and closing operation of the door shown in FIG. 7, wherein (A) shows a closed state and (B) shows an open state.

[Explanation of symbols]

 Reference Signs List 1 housing 2 hinge 3 door 4 third plate 4a, 4b screw hole 5 first plate 5a through hole 6 second plate 6a screw hole 6b, 6c through hole 7, 9 rotary shaft screw 8 rotation stop screw

Claims (3)

(57) [Claims] 1. A hinge structure for a door that allows a door covering an opening of a housing to rotate freely by 180 degrees, wherein a first plate fixed inside the door and fixed outside the housing. A second plate; a third plate positioned between the first plate and the second plate; a first rotation shaft rotatably connecting one end of the first plate and the third plate; A second rotating shaft rotatably connecting the second plate and the other end of the third plate; and a stopping means capable of stopping the rotation of the third plate about the second rotating shaft. A hinge structure for a door, characterized in that: 2. A hinge structure of a door which allows a door covering an opening of a housing to be freely rotatable by 180 degrees, wherein: a first plate having a through hole fixed inside the door; A second plate having a screw hole fixed to the outside, and located between the first plate and the second plate;
A third plate having a screw hole at one end and a through hole at the other end; and screwing the first plate to the third plate by screwing into the screw hole of the third plate through the through hole of the first plate. A first rotating shaft screw rotatably connected to the second plate, and a third plate is screwed into a screw hole of the second plate through a through hole at the other end of the third plate. A hinge structure for a door, comprising: a second rotating shaft screw rotatably connected to the second rotating shaft; and a stopping means capable of stopping rotation of the third plate about the second rotating shaft. 3. The stopping means according to claim 1, wherein a screw is screwed to the second plate through the third plate to thereby stop the rotation of the third plate. 3. The hinge structure of the door according to 2.