JPH08240058A - Hinge structure for door - Google Patents

Abstract

PURPOSE: To smoothly open and close a door with the large opening degree of the door maintained. CONSTITUTION: The first and second turning plates 17 are provided adjacently on the body side base 11 of a body 2, so as to be freely rotatable via rotating shafts 17, and the base end of the first arm member 19 is rotatably connected to both plates 17 via the first arm shafts 19b of the body 2. Also, the forward end of the member 19 is rotatably connected to the base 12 of a door 3 via the first arm shaft 19d of a door 3. In addition, the base end of the member 20 is rotatably connected to both plates 17 via the second arm shafts 20b of the body 2. Also, the forward end of the member 20 is rotatably connected to the door base 12 of the door 3 via the second arm shaft 20d of the door 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door hinge structure used for a library, a partition, and the like, and more specifically, to a door hinge structure capable of increasing the opening degree of the door and smoothly opening and closing the door. Regarding

[0002]

2. Description of the Related Art Conventionally, a door for opening and closing the opening of the main body is pivotally attached to the front surface of the main body such as a library and a partition through a hinge. Since a beautiful exterior is required in this type of library, partition, etc., the door is generally formed in a size that covers not only the opening of the main body but also the vicinity of the outer edge of the front surface of the main body.
Especially when a plurality of archives are installed side by side, such as a wall archive, the size of the doors is determined so that a large gap is not created between the adjacent doors when the doors are closed. Therefore, a hinge that can be opened smoothly and largely so as not to interfere with the front surface of the main body or the door of an adjacent library, and to prevent any trouble in pulling out the inside of the main body or taking in and out of stored items. Structure is needed. A hinge structure that can support the opening and closing of a large and heavy door without hindrance is required.

In order to meet the above requirements, it is necessary to have a hinge structure which can first move the entire door in front of the main body when the door is rotated in the opening direction. There have been proposed some hinge structures, but a typical one will be described. The hinge structure of the door disclosed in Japanese Utility Model Laid-Open No. 63-89078 discloses that both ends of a mounting plate attached to the main body and a hinge arm. Both ends of the hinge are connected to each other via connecting plates to form a four-bar link structure, and the extended end of the hinge arm further rotatably supports the door via a pivot. According to this hinge structure, the hinge arm can be moved to the front of the main body by the four-bar linkage, and the door can be opened greatly by rotating the door with respect to the hinge arm. On the other hand, in the hinge structure of the door disclosed in Japanese Utility Model Laid-Open No. 1-138080, one end of each of two connecting plates is connected to a mounting plate attached to the main body through two pins, and further, both connecting plates are connected. By connecting both ends of the lever plate to the other end via pins, respectively, a four-bar link is formed, and the door is pivotally supported on one of the two pins connecting the lever plate and the connecting plate. It has become a thing. Also in this hinge structure, the entire door can be moved to the front of the main body by the operation of the four-bar linkage when the door is opened.

[0004]

However, in the above-mentioned two conventional examples, the door is pivotally supported with respect to one of the four-bar links in order to increase the opening degree of the door. Since it is configured to rotate independently of movement, opening and closing operation of the door with respect to the main body is not constant,
There was a problem that it was difficult to operate. Further, since the door is only pivotally supported by one pivot pin for one of the four-bar links, it is difficult to secure sufficient support strength in the case of a large and heavy door, There were problems that the door became difficult to move and rattling easily occurred during use.

Therefore, an object of the present invention is to provide a hinge structure for a door that can be opened and closed smoothly while ensuring a large opening of the door.

[0006]

In order to solve the above-mentioned problems, according to the present invention, there is provided a hinge structure of a door for opening and closing an opening on the front surface of the main body, the main body side base provided on the main body. And the first and second rotating plates are arranged adjacent to each other so as to be rotatable by rotating shafts, and the base end portions of the first arm members are respectively attached to the rotating plate by the main body side first arm shaft. The first arm member is rotatably attached, and the tip end portion of the first arm member is rotatably attached to the door side base provided on the door side by the door side first arm shaft, and the base end portion of the second arm member is provided on both sides. The main body side second arm shaft is rotatably attached to the rotary plate, and the tip end portion of the second arm member is rotatably attached to the door side base provided on the door side by the door side second arm shaft. It is characterized by being installed.

[0007]

According to the door hinge structure having the above structure, the opening and closing operation of the door causes the first and second rotating plates to rotate, and the rotation causes the first and second arm members to rotate. Move in parallel. As a result, the door supported by the tip of each of these arm members can be opened without interfering with the front surface of the main body or the door of the adjacent library or the like. Moreover, since the door uniquely opens and closes, the door can be easily opened and closed, and the door can be smoothly opened and closed. Further, since the door is supported by the first and second arm members, the supporting strength for the main body is increased, and the smooth opening / closing operation of the door can be maintained for a long period of time. Furthermore, according to such a mechanism, when the door is opened 180 °, it is possible to prevent the side surface of the door from projecting inside the opening of the main body, which does not hinder the entrance and exit of books and the like.

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

1 to 12 show an embodiment of the present invention, and FIG. 1 is an overall perspective view of a library 1. Referring to FIG. 1, a library 1 includes a library body 2 having an open front surface, and a pair of left and right doors 3 for opening and closing an opening 2 a of the body 2.
3 is provided. In such a library 1, the doors 3 and 3 can be opened and drawers in the main body or contents such as documents can be taken in and out.

These doors 3 and 3 are denoted by reference numerals a, b, and b in FIG.
The main body of the archive 2 by the hinges 10 arranged at the four corners of C and D.
It is supported to be openable and closable.

In the following, description will be made with reference to the hinge 10 arranged at the position indicated by reference numeral a.

First, the library main body 2 at this corner is shown in FIG.
As shown in 3, 9 etc., the insertion opening 2b for inserting the hinge 10
Is formed on the front wall 2d (vertical wall) of the ceiling portion 2c, and the main body side mounting plate 4 to which the hinge 10 is mounted is arranged inside in the horizontal direction.

Further, the back surface 3a of the door 3 is shown in FIGS.
As shown in 10, 11, etc., the insertion opening 2 on the main body 2 side of the library.
Similarly, an insertion opening 3b for inserting the hinge 10 is formed at a position corresponding to b, and a door side attachment plate 5 to which the hinge 10 is attached is fixed inside. This door side mounting plate 5
The vertical surface portion 5a is fixed to the inner surface of the side surface portion 3c of the door 3, and the horizontal surface portion 5b is fixed to the lower surface of the upper surface portion 3d of the door 3. Further, the door side mounting plate 5 is formed with a screw hole 5c for fixing the hinge 10.

On the other hand, the hinge 10 includes a main body side base 11 fixed to the main body side mounting plate 4 with a screw 13 and a door side base 1 fixed with a screw 14 to a screw hole 5c of the door side mounting plate 5.
And 2.

On the main body side base 11, a substantially triangular first rotating plate 15 and a second rotating plate 16 are arranged along a width direction in a substantially horizontal plane, and each of them is rotated by a rotating shaft 17 to form a main body. It is rotatably attached to the side base 11. As shown in FIGS. 5 and 8, these rotating plates 15 are formed in a stepped shape, and the lower surface portion thereof is rotated by the rotating shaft 17 so that the main body side base 1
It is attached to 1. And on the higher side,
First and second arm members 19 and 20 are attached.

The first arm member 19 and the second arm member 20 are arranged so that the second arm member 20 overlaps the upper side, and the base end portion 19a side of the first arm 19 is
Main body side first arm shafts 19b, 19 are attached to both rotary plates 15, 16.
This first arm 1 is rotatably attached via b.
The front end portion 19c of 9 is rotatably attached to the door side attachment plate 5 by the door side first arm shaft 19d.

Similarly, the second arm member 20 is also rotatably attached to the rotary plates 15 and 16 at the base end portion 20a side via the main body side second arm shafts 20b and 20b, and the distal end portion 20c. Is rotatably attached to the door side attachment plate 5 by the door side second arm shaft 20d. These second
A collar 22 is provided around the arm shafts 20b and 20d as shown in FIGS. In addition, parts b, c,
D also has a structure similar to that described above, and a description thereof will be omitted.

Next, the operation will be described.

First, in the closed state of the door 3 shown in FIG. 2, the side surface portion 3c of the door 3 is set so as not to project from the outer surface 2g of the side surface portion 2f of the library body 2 to the adjacent library side.
From this state, when the door 3 is rotated in the arrow direction so as to open the door 3, the first and second rotating plates 15 and 16 cause the rotating shaft 1 to move.
It rotates about 7 to the position shown by the chain double-dashed line in FIG. Due to the rotation of the both rotary plates 15 and 16, the main body side first and second arm shafts 19b and 20b rotate about the rotary shafts 17 and 17, respectively. As a result, the first and second arm members 19 and 20 move in parallel while rotating, and the door-side first and second arm shafts 19d and 2 are moved.
The position of 0d also changes, and the door 3 is in an oblique state. Then, when the door 3 is further rotated, the door 3 is rotated 90 ° from the closed state as shown by the solid line in (a) of FIG. 12, and then the two-dot chain line in (b) of FIG. , Rotate as shown by the solid line. In the state shown by the solid line in (b) of FIG. 12, the door 3 does not hit the front surface of the library body 2 and is 180 ° from the closed state.
When the door 3 is rotated and opened 180 degrees, the door 3 moves forward from the main body 2 by the thickness of one door 3 as compared with the closed state. For this reason, in the case where the archives 1 are arranged side by side in the lateral direction, when the door 3 of a certain archive 1 is opened, the door 3'of the adjacent archive does not interfere and the door 3'cannot be opened.

Further, when the door 3 is opened by the above mechanism, the side surface portion 3c of the door 3 does not protrude inward (the inside of the opening portion 2a) from the inner surface 2h of the side surface portion 2f of the library body 2, so that the book The side surface portion 3c of the door 3 does not get in the way of putting in and out of the door, and the usability is good. In the door 3 closed state of FIG. 2 and the door 3 opened state of FIG. 12 (b),
Comparing the position of the door side second arm shaft 20d in the vicinity of the door side face portion 2f, this position does not move in the width direction of the library 1, but merely moves to the front side of the library 1. Therefore, the position of the door side surface portion 2f does not move greatly in the width direction. As a result, as shown in FIG. 2, the distance L from the side surface 2f to the door-side second arm shaft 20d is set to be shorter than half the width b of the library body side surface 2f, and the door-side second arm If the position of the shaft 20d is set to the central portion in the width direction of the library body side surface portion 2f, the door side surface portion 3c may project outside the outer surface 2g of the library body side surface portion 2f when the door 3 is closed. At the same time, when the door is open, the door side surface portion 3c does not protrude inward from the inner surface 2f of the library body side surface portion 2f.

Furthermore, since each arm member 19 and 20 carries out a limited operation, the door 3 supported by each arm member 19 and 20 at two points for each hinge 10 also always makes a unique movement. Therefore, the opening / closing operation of the door 3 is facilitated, and the door 3 can be smoothly opened / closed.

Furthermore, the door 3 is firstly provided for each hinge 10.
Since it is supported by the second arm members 19 and 20, the supporting strength for the library main body 2 is increased, and the smooth opening / closing operation of the door 3 can be maintained for a long period of time.

Although one embodiment has been described above, the present invention is not limited to the mode of the above embodiment. For example, the shapes of the rotating plates 15 and 16 and the arm members 19 and 20 are the same as those of the above embodiment. The present invention is not limited to the shape of the example, and other shapes may be used. Further, although the library 1 of the above-mentioned embodiment is a type in which the two doors 3 on the left and right sides are opened to the left and right, a single door that is opened only to the left, right or upper It may have a door. Further, the present invention is not limited to a library, but can be similarly applied to a partition or the like as long as it has a door.

[0023]

As is apparent from the above description, according to the present invention, the opening and closing operation of the door causes the first and second rotating plates to rotate, and this rotation causes the first and second arm members to rotate. The doors supported by the front ends of the respective arm members can be moved without interfering with the front surface of the main body or the door of the adjacent library or the like since the doors move in parallel with each other. Moreover, since the door uniquely opens and closes, the door can be easily opened and closed, and the door can be smoothly opened and closed. Further, since the door is supported by the first and second arm members, the supporting strength for the main body is increased, and the smooth opening / closing operation of the door can be maintained for a long period of time. Furthermore, when the door is opened 180 °, the side surface of the door can be prevented from protruding inside the opening of the main body, so that it does not interfere with the putting in and out of books and the like and the door is easy to use. A hinge structure can be provided.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a library using a hinge according to an exemplary embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of the library shown in FIG.

FIG. 3 is a cross-sectional view of the library shown in FIG. 1 taken along the line BB.

FIG. 4 is a perspective view of the hinge in the closed state of the door.

FIG. 5 is a perspective view corresponding to FIG. 4 in the opened state of the door.

6 is a cross-sectional view taken along the line CC of FIG.

FIG. 7 is a cross-sectional view showing a main body side base at a position along a line D-D in FIG.

FIG. 8 is a view showing a state in which each rotating plate of the main body side base is attached.

FIG. 9 is a front view of the upper right corner of the library body.

FIG. 10 is a cross-sectional view of the upper right corner of the door taken along the horizontal direction.

11 is a cross-sectional view taken along the line EE of FIG.

FIG. 12 is a sectional view corresponding to FIG. 2 showing the opening / closing operation of the door.

[Explanation of symbols]

 1 Library 2 Library Main Body (Main Body) 3 Door 10 Hinge 11 Main Body Side Base 12 Door Side Base 15 First Rotating Plate 16 Second Rotating Plate 17 Rotating Shaft 19 First Arm Member 19a Base End 19b Main Body Side First Arm Shaft 19c Tip part 19d Door side first arm shaft 20 Second arm shaft 20a Base end part 20b Main body side second arm shaft 20c Tip part 20d Door side second arm shaft

Claims (1)

[Claims] 1. A hinge structure for a door that opens and closes an opening on the front surface of a main body, wherein a main body side base provided on the main body comprises:
The first and second rotating plates are arranged adjacent to each other so as to be rotatable by rotating shafts, and the base end portion of the first arm member is rotated by the first arm shaft on the main body side on both rotating plates. Freely attached, and the front end portion of the first arm member is rotatably attached to the door side base provided on the door side by the door side first arm shaft,
The base end portion of the second arm member is rotatably attached to the both rotary plates by the main body side second arm shaft, and the tip end portion of the second arm member is attached to the door side by the door side second arm shaft. A hinged structure for the door, which is rotatably attached to the provided door-side base.