JP2003184407A - Hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge device allowing more effective use of a storage space of furniture or the like. <P>SOLUTION: In this hinge device, one end part L1A of a first link L1 is rotatably connected to a casing side base part through a pivot P1A, and the other end part L1B is rotatably connected to the outside of one end part L2A of a second link L2 through a pivot P2A. The second link is disposed inside a third link L3 and rotatably connected through a pivot P3, and the other end part L2 is rotatably connected to the inside of a link storage recessed part of a door side base part through a pivot P2B. One end part L3A of the third link is rotatably connected to the casing side base part through a pivot P3A, and the other end part L3B is rotatably connected to one end part L4A of a fourth link L4 through a pivot P3B. The other end part L4B of the fourth link is rotatably connected to the inside of a link storage recessed part of the door side base part through a pivot P3B, and a door can be opened to the opening of about 180° to a casing. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for rotatably connecting a door and a housing of furniture or the like.

[0002]

2. Description of the Related Art A hinge device for opening and closing a furniture door is designed, for example, in Japanese Patent Laid-Open No. 5-133154 so that the main body side hinge does not project from the inside of the side plate of the furniture main body into the interior space of the furniture. . This is to effectively use the furniture storage space.

[0003]

However, with the door closed, the first link and the second link still largely project into the storage space in the furniture, and from the viewpoint of effectively utilizing the storage space of the furniture. I have to say that is still insufficient. In addition, it is desirable for high-quality furniture or the like to hold the door so that it does not sway when the door is open, and further, when the door is closed, an operation different from the operation of closing the door can be performed. However, there is a conventional one that holds the door in a closed state so that the door is not opened carelessly, but if a person who uses furniture simply performs an operation to close the door, the state in which the door is closed as a result It is convenient and desirable if it can be maintained at. Further, in the case where the door is to be closed, if the door is closed to a position slightly before it is completely closed, it is convenient and preferable if it can be automatically pulled in and closed without performing the remaining closing operation. Further, it is preferable that the generation of a collision sound with the housing when the door is closed can be reduced. Therefore, an object of the present invention is to provide a hinge device that can more effectively use a storage space for furniture or the like. Another object is to prevent the door from wobbling when the door is open or closed. Another object of the present invention is to provide a hinge device in which the rest can be automatically pulled in and closed even if a person does not completely close the door. Another object of the present invention is to provide a hinge device that can reduce the noise generated when the door is closed.

[0004]

In view of the above object, in claim 1, a casing side base portion attached to a casing, a door side base portion attached to a door and having a link accommodating concave portion, and both base portions. In a hinge device provided with four links that swingably connect between the two, one end of the first link is rotatably connected to the housing side base part via a pivot, and the other end is one end of the second link. Is rotatably connected to the outside of the portion via a pivot, the second link is disposed inside of the third link and is rotatably connected to the outside of the third link, and the other end is a link of the door-side base portion. The third link is rotatably connected to the inside of the accommodation recess via a pivot, one end of the third link is pivotally connected to the housing side base via the pivot, and the other end is pivotally connected to one end of the fourth link. And the other end of the fourth link is a door-side base part. The door is rotatably connected to the inside of the link accommodating recess via a pivot, the door can be opened to an opening of approximately 180 degrees with respect to the housing, and when the door is closed, the link of the door side base portion is formed. Provided is a hinge device characterized in that the four links can be substantially housed in the housing recess.

The door side base portion having the link accommodating recess is
The door itself may be directly provided with the link accommodating recess, or the bracket member as a separate component may be provided with the link accommodating recess.
You may attach this to the door. In the latter case, embedding the bracket member in the door leads to more effective use of the storage space. Further, the housing side base portion may be the housing itself, or may be formed as a separate component and attached to the housing. In the latter case, embed it on the inner surface of the housing, or
Alternatively, forming the storage space as thin as possible leads to more effective use of the storage space. The above also applies to other claims. Since the four links from the first to the fourth can be accommodated in the link accommodating concave portion of the door side base portion when the door is closed, the accommodating space of the housing can be used as effectively as possible. In addition, since the door is opened approximately 180 degrees, it is easy to take things in and out of the accommodation space.

According to a second aspect of the present invention, the housing side base portion attached to the housing, the door side base portion attached to the door and having the link accommodating recess, and the four links for swingably connecting the both base portions. In the hinge device including the above, one end of the first link is rotatably connected to the housing side base part via a pivot, and the other end is rotated outside or inside the one end of the second link via the pivot. Movably connected, the second link is disposed inside the third link and is rotatably connected via a pivot, and the other end rotates inside the link accommodating recess of the door side base via the pivot. The third link is movably connected, and one end of the third link is rotatably connected to the housing-side base via a pivot.
The other end is rotatably connected to one end of the fourth link via a pivot, and the other end of the fourth link is rotatably connected to the inside of the link accommodating recess of the door-side base. , The door can be opened to approximately 180 degrees with respect to the housing,
When the door is closed, the four links can be almost housed in the link housing recess of the door-side base portion, and the fourth link has a first pressing member arranged on the other end side, Urging means for urging the first pressing member at all times, while the other end of the fourth link is rotatably connected to the inside of the link accommodating recess of the door side base part. Has a bearing portion through which the pivot shaft is inserted, and the outer periphery of the bearing portion completely covers the door and the contact surface with which the first pressing member abuts when the fourth link rotates through the pivot shaft. The first pressing member can be dropped at the front position of closing the door, and the first pressing member is engaged with the door when the door is closed, and the second recess is engaged with the door when the door is opened approximately 180 degrees. A hinge device is provided.

Since the four links from the first to the fourth can be stored in the link storing recess of the door side base portion when the door is closed, the storage space of the housing can be used as effectively as possible. it can. In addition, since the door is opened approximately 180 degrees, it is easy to take things in and out of the accommodation space. Further, the fourth link is provided with a first pressing member arranged on the other end side and a biasing means for constantly biasing the first pressing member, while the other end of the fourth link is provided. Inside the link accommodating recess of the door-side base part that rotatably connects the parts via a pivot, there is a bearing part through which the pivot is inserted, and the outer periphery of the bearing part is provided with a fourth link. The contact surface with which the first pressing member abuts when it is rotated through and the front position where the door is completely closed, the first pressing member can be dropped, and the door is closed. A first recess for engagement, generally 180
Since the door has the second recess that engages in the opened state, the first pressing member pressed by the biasing means engages with the second recess on the outer periphery of the bearing when the door is opened approximately 180 degrees. Therefore, it is possible to prevent the door in the fully opened state from unintentionally wobbling. Further, at the position before the door is completely closed, the first pressing member pressed by the urging means falls into and engages with the first concave portion on the outer periphery of the bearing portion, so that the person does not operate until the door is completely closed. By closing the door to a position close to the closed position, the mechanism automatically pulls it in and closes it later. It is convenient and the door in the closed state wanders unintentionally in the opening direction. Can be prevented.

According to a third aspect of the present invention, the fourth link has a long hole having a long axis diameter longer than an outer diameter of the pivot axis, in which a pivot provided at the one end of the fourth link is inserted. Two pressing members are further provided, and the urging means always urges the first and second pressing members in a direction to separate them from each other, and the major axis is along the urging direction, while the door side Inside the link accommodating recess of the base portion, there is provided an engaging portion capable of engaging with the second pressing member at a position slightly before the door is completely closed, and the engaging portion and the second pressing member are provided. The engaging part is
When a force greater than a predetermined value is applied to the door in the closing position direction in the engaged state of the engaging portion and the second pressing member, the second
3. The hinge device according to claim 2, wherein the hinge device is sized and shaped so as to be disengaged by the movement of the second pressing member within the movable range with respect to the pivot in the elongated hole of the pressing member.

In addition to the function and effect of claim 2, an engaging portion that can engage with the second pressing member is provided inside the link accommodating recess of the door-side base portion at a position slightly before the door is completely closed. Therefore, the second pressing member urged by the urging means engages with the engaging portion, and the force of closing the door is stopped. However, the engagement between the engagement portion and the second pressing member can be released by applying a force of a predetermined value or more in the direction of further closing the door.
That is, due to the existence of the elongated hole, the second pressing member retreats in the direction away from the engaging portion against the urging force of the urging means, and the engagement is released. Therefore, the door can be rotated by the remaining angle to be completely closed, and the amount of closing in this case is small, so that the noise due to the collision between the door and the housing is inevitably low.

According to a fourth aspect of the present invention, a housing side base portion mounted to the housing, a door side base portion mounted to the door and having a link accommodating concave portion, and four links for swingably connecting the both base portions. In the hinge device including the above, one end of the first link is rotatably connected to the housing side base part via a pivot, and the other end is rotated outside or inside the one end of the second link via the pivot. Movably connected, the second link is disposed inside the third link and is rotatably connected via a pivot, and the other end rotates inside the link accommodating recess of the door side base via the pivot. The third link is movably connected, and one end of the third link is rotatably connected to the housing-side base via a pivot.
The other end is rotatably connected to one end of the fourth link via a pivot, and the other end of the fourth link is rotatably connected to the inside of the link accommodating recess of the door-side base. , The door can be opened to approximately 180 degrees with respect to the housing,
When the door is closed, the four links can be almost housed in the link housing recess of the door side base portion, and the pivot provided at the one end portion of the fourth link is inserted into the fourth link. A second pressing member having a long hole having a long axis diameter longer than the outer diameter of the pivot, and a biasing means for constantly biasing the second pressing member, wherein the long axis is the biasing member. Along the urging direction of the means, on the other hand, inside the link accommodating recess of the door side base portion, there is provided an engaging portion capable of engaging with the second pressing member at a position slightly before the door is completely closed. The engaging portion between the engaging portion and the second pressing member is provided with a predetermined force or more in the closing position direction on the door in the engaged state between the engaging portion and the second pressing member. If given, the engagement can be released by the movement of the second pressing member within the movable range with respect to the pivot in the elongated hole of the second pressing member. Providing a hinge device which is a size and shape.

Since the four links from the first to the fourth can be accommodated in the link accommodating concave portion of the door side base portion when the door is closed, the accommodating space of the housing can be used as effectively as possible. it can. In addition, since the door is opened approximately 180 degrees, it is easy to take things in and out of the accommodation space. Further, since the engaging portion that can engage with the second pressing member is provided inside the link accommodating concave portion of the door side base portion at a position slightly before the door is completely closed, it is urged by the urging means. The biased second pressing member engages with the engaging portion to reduce the closing force of the door. However, the engagement between the engagement portion and the second pressing member can be released by applying a force of a predetermined value or more in the direction of further closing the door.
That is, due to the existence of the elongated hole, the second pressing member retreats in the direction away from the engaging portion against the urging force of the urging means, and the engagement is released. Therefore, the door can be rotated by the remaining angle to be completely closed, and the amount of closing in this case is small, so that the noise due to the collision between the door and the housing is inevitably low.

According to a fifth aspect of the present invention, the engaging portion is a mountain-shaped convex portion, one slope is a steep slope, and the opposite slope is for movement of the second pressing portion when the door is opened. The hinge device according to claim 3 or 4, wherein the hinge device has a gentle slope having a low resistance. In addition to the action and effect of claim 3 or 4, in the direction in which the door closes, the closing operation of the door is temporarily stopped by the steeply sloping surface of the engaging portion, and the door is completely closed by a force of a predetermined value or more, and thereafter, When the door is rotated in the opening direction again, it comes into contact with the gently inclined surface of the engaging portion, so that the rotation resistance is small and the door opening operation is not hindered.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is an exploded perspective view of a hinge device according to the present invention, and FIG. 2 is a partial cross-sectional view from a top view when it is applied to a housing KT such as furniture and a door D1, and also shows the operation. 3 to 6 are partial cutaway views for explaining the mechanism provided in the fourth link of the present invention and its operation. The door D2 shown in FIG. 2 is for adjacent furniture.

Mainly with reference to FIG. 1, the respective components of the hinge device and their mutual connection will be described. The case-side base portion KB fixed to a case such as furniture has a lower member KB1 having a U-shaped cross section, and an upper member KB2 having a U-shaped cross section which is covered in the direction shown in the drawing, and is provided at one end thereof. A pin P0 serving as a pivot (the same applies to each of the following pins and description thereof is omitted) is inserted into the provided hole. Also, three screws N1
The upper and lower members are firmly integrated while being fixed to the housing by. Further, the other screw N2 is used for adjusting the height of the lower member with respect to the upper member fixed to the inner plate member KTA (FIG. 2) forming the inner surface of the side wall of the housing KT. Further, the adjusted positional relationship between the upper member and the lower member by the other screw N2 is fixed by the screw N1 located on the rightmost side in FIG. 2 among the three screws N1.

A hole P1AH is provided at the other end of the lower member of the housing side base portion KB, and the other end of the upper member does not reach this end region. Therefore, inside the other end of the lower member, the first link L1 having a U-shaped cross section is formed.
One end L1A of the pin is positioned, and the pin P1A is inserted while the hole is aligned with the hole P1AH. Also, one end L of the second link L2 is provided inside the other end L1B of the first link.
2A is positioned, and the pin P2A is inserted into the hole provided in each. The other end portion L2B of the second link will be described later, but the door side base portion D provided with the storage space SP as shown in the drawing.
The pin P2B is located inside the open end (left end in FIG. 1) of B, and the pins P2B are inserted through the holes provided in both members.

The second link L2 is also provided with a hole in the intermediate portion between the one end and the other end, and the second link is located inside the third link L3 having the shape as shown in the drawing. The pin P3C is inserted by aligning the hole in the middle of the third link with the hole provided in the center of the third link. In addition, the hole P1AH on the other end side of the lower member KB1 of the housing side base portion.
Another hole P3AH is provided near the third link L
One end L3A of 3 is located outside the other end of the lower member, and the pin P3A is inserted with the hole of one end of the third link aligned with the hole P3AH. Further, the third link has an inner width dimension that allows the first link to be located inside thereof. Furthermore, a large opening L3K is provided on the upper side so that the first link and the second link can enter and leave the third link. The lower part is completely open.

Inside the other end L3B of the third link, one end L4A of the fourth link L4 having a U-shaped cross section is located, and the pin P3B is inserted into the hole provided in each.
The other end L4B of the fourth link is located inside the above-mentioned door-side base portion DB, and is provided in the hole at the other end and the center portion in the length direction of the door-side base portion (the center portion in the left-right direction in FIG. 1). The pin P4B is inserted through a hole formed through the bearing portion JB (FIG. 3) provided and the bearing portions JB ′ at the left and right ends adjacent to the bearing portion JB.

Further, the fourth link has a first pressing member M1 and a coil spring R as an example of a biasing means.
And the second pressing member M2 are provided so as to rotate together with the fourth link. That is, the second pressing member M2 is provided with the through hole P3BH, which is arranged in the fourth link, and together with the third link and the fourth link, the pin P3BH.
Is inserted. This through hole is a coil spring R
It is a long hole that is long in the direction urged by, and the long axis length is longer than the diameter of the pin P3B by a predetermined amount or more.

A first pressing member M is provided on the other end side of the fourth link.
1 is provided, and the coil spring R is provided between the first and second pressing members, and the members are always biased in the direction in which these members are separated from each other. In this case, the tip of the first pressing member M1 is in contact with the bearing JB of the door-side base, which has already been described.
Even if it is biased by the coil spring, its position can be maintained. The operation of these pressing members will be described later with reference to FIGS.

Notch K3 provided on both side plates of the first link
The former of A and K3C is because when the door D1 (hinge device) is completely opened, the first link comes into contact with the pin P1A and stops the opening operation. Conversely, in the middle of completely opening it. This is to prevent the first link from interfering with the pin P1A. The latter K3C is a door D1 (hinge device)
This is to prevent the first link from interfering with the pin P3C before completely closing. Furthermore, the third link L3
The cutout portion KJB ′ at the center of the lower edge of both side plate portions prevents the third link from interfering with the bearing portions JB ′ at the left and right ends of the door side base portion DB before completely closing the door D1. This is because. The notch K2B near the one end L3A is for preventing the third link from interfering with the pin P2B before completely closing the door D1.

FIG. 2 shows the state in which the hinge device is attached between the housing KT and the door D1 and the door is completely closed, and the state in which the door is completely opened is shown by a chain double-dashed line. First, the housing-side base portion KB is to be embedded between the outer plate member KTB forming the outer surface of the housing side wall and the inner side surface formed by the inner plate member KTA, that is, from the inner surface to the storage space. It is attached to prevent it from protruding.

On the other hand, a door side base DB is attached to the door D1. The door-side base portion is to be embedded between the outer side plate member D1B forming the outer side surface of the door and the inner side surface formed by the inner side plate member D1A, that is, it is prevented from protruding from the inner side surface into the storage space. It is installed as described. Specifically, the door-side base portion is inserted into a hole provided in the inner plate member D1A, and the flange portion FR is screwed and fixed in a state of being placed on the peripheral portion of the hole portion.

When the door D1 is completely closed, the first to fourth links are folded as shown in FIG. 2 and are stored in the storage space SP of the door side base portion. In the hinge device of this example, the outer peripheral surface of the flange portion of the door-side base portion is completely covered, and to be precise, the inner plate member D1A of the door is closer to the inner surface of the flange portion of the flange portion. Although it can be said that the thickness is projected to the housing storage space side, it can be said that it does not substantially project into the storage space. Also, although the other first, second, and fourth links partially protrude inside the large third link, they are almost accommodated. Further, in this case, since the width of the second link is dimensioned to fit inside the fourth link, a part of the second link is inside the fourth link and does not interfere.

When one end of the door is in contact with the edge of the housing (including a rubber member for contact), that is, in a completely closed state, the first link L1 has the pin P at the cutout K3C.
Close to 3C. The third link L3 is close to the pin P2B at the cutout K2B, and the cutout KJ is formed.
In B ', the bearing portion J at the left and right ends of the door side base portion DB
It is close to B '. Also, the other end L3B of the third link
The lower edge of the side plate portion closer to the side wall is close to the bottom surface of the door side base portion DB. Furthermore, the fourth link L4 is close to the bottom surface of the door-side base portion DB.

The state where the door is completely opened (state of two-dot chain line)
Can be said to be approximately 180 degrees as shown. A dash symbol is added to the same symbol as before the movement of the main member that has moved to this state. In this state, the first link L
1'abuts on the pin P3A at the notch (K3A). Further, the third link L3 ′ is in contact with the pin P2B ′. By the contact between these two places, the opening is stopped at about 180 degrees, and it is prevented from opening further and interfering with the door D2 of the adjacent case.

As shown in FIG. 2, in plan view, each member constituting the hinge device according to the present invention is located inside the forward extension line of the inner side surface of the inner plate member KTA of the housing. It does not project to the (storage space side). Therefore, it can be used without narrowing the opening width of the housing, and the work of taking in and out of the storage space inside the housing can be performed smoothly.

In the hinge device according to the present invention described above, the one end L2A of the second link L2 is a mechanism arranged inside the other end L1B of the first link L1. , And the other links have the same relationship, the same operational effects as described with reference to FIG. 2 are achieved. However,
When the above-mentioned second link is arranged inside the first link, the width of the second link is dimensioned to fit inside the fourth link. Therefore, when the second link is closed, a part of the second link is the fourth link. The explanation that it is inside and does not interfere is changed. That is, the width of the second link may be formed so that the fourth link is located inside the second link, or the width of the second link may be set to the same degree and the interfering portion of either one of the links may be removed. It may be changed.

Next, regardless of whether the arrangement relationship between the first link and the second link is inside or outside, the operation of the mechanism described below with reference to FIGS. 3 to 6 is established. Figure 3
2 is a view in which the door is closed, that is, the door is shown by a solid line in FIG. 2, and the mechanism disposed in the fourth link and a part of the door-side base portion are cut away. is there. FIG. 4 is a view corresponding to FIG. 3 with the door completely opened. Outer peripheral surface CS of the bearing portion JB through which the pin P4B is inserted
Is a part of a circle centered on the center position of the pin receiving hole (which is a part of the cylindrical surface).

A second concave portion K2 is provided on the outer peripheral surface of the arc-shaped bearing portion corresponding to the position of the first pressing member M1 in the fourth link when the door is completely opened. Further, a first recess K1 is provided on the outer peripheral surface of the arc-shaped bearing portion corresponding to the closed state of the door. The tip of the first pressing member M1 is
It is formed in a smooth tapered shape such as an elliptical shape or a parabolic shape.

Therefore, if the door is closed to a position before the door is completely closed, that is, about 25 degrees before the door opening, the first pressing member M1 urged by the coil spring R is moved to the first position. 1 Sliding (falling) into the recess K1
This allows the door to be automatically retracted and fully closed. This has the effect that it is convenient because it does not need to be closed to the end with human hands, and that a loud noise that occurs when it is closed too tightly is prevented, and that it can be closed quietly. Further, since the movement of the fourth link is regulated by the engagement of the first recess and the first pressing member, it is possible to prevent the closed door from being unsteadyly opened due to vibration or the like.

When opening the door, just before the door is completely opened (close to 180 degrees), the first pressing member M1
Starts to slide into the second recess K2, and then automatically slides, thereby completely opening the door. Then, since the movement of the fourth link is restricted by the engagement of the second recess and the first pressing member, it is possible to prevent the completely opened door from wobbling inadvertently moving in the closing direction due to vibration or the like. .

The above-mentioned matters explained with reference to FIGS. 3 and 4 are as follows even if the auxiliary plate member HB is removed as shown in FIG. 3 or even if the second pressing member M2 is not provided. The same applies to the case of mounting as shown in FIGS. When the auxiliary plate member or the second pressing member M2 is attached, as will be described later, it is temporarily stopped while the door is being automatically retracted in the direction in which the door is completely closed.

At a predetermined position on the back side of the auxiliary plate member HB, there is provided an engaging portion TA which can be engaged with and disengaged from the notch portion TA 'provided on the door side base portion DB, so that the auxiliary plate member can be attached and detached. I am configuring. Further, a mountain-shaped convex portion TB as an engaging portion is provided at a predetermined position on the front surface, and when mounted on the door side base portion, the open side of the storage space SP is set to the upper side and the bottom side is set to the lower side. Then, the auxiliary plate member is mounted so as to extend in the vertical direction. The upper surface KK of the convex portion is formed with a steep inclination angle in the sense that it is close to the direction orthogonal to the surface of the auxiliary plate member, and the lower surface YK thereof is formed.
Is formed with a gentle inclination angle. Further, the height dimension of the convex portion is the same as the through hole P3BH provided in the above-mentioned second pressing member M2.
Is less than or equal to the length obtained by subtracting the diameter of the pin P3B from the long axis length (long axis diameter).

Referring to FIG. 5, when the auxiliary plate member is mounted, the door is automatically closed by the mechanism as described above at a position, for example, about 25 degrees before the door is completely closed to close the door. Begins to close. However, just before the door is completely closed, for example, at a front position of about 5 degrees in terms of the opening angle of the door, the second pressing member M2 is caught by the steeply inclined surface KK of the convex portion, and the movement of the door is temporarily stopped. . After that, when the door is pushed with a force equal to or more than a predetermined value, the second pushing member moves backward against the biasing force of the coil spring R, and the engagement with the convex portion is released. This allows the door to be completely closed.

The tip of the second pressing member has a smooth tapered shape such as an ellipse or a parabola so that the engagement of the convex portion with the steeply inclined surface can be released by a predetermined force. Has been formed. When the movement of the door is once stopped by the engagement with the convex portion, it is possible to prevent the door from hitting the housing strongly and generating a loud noise. After that, when the door is pushed and closed with a predetermined force to close the convex portion, the door does not move at a small angle (about 5 degrees), and a large collision noise does not occur.

Referring to FIG. 6, when the door in the closed state is to be opened, the second pressing member M2 is located below the convex portion, and in this case, the gentle inclined surface YK is formed. Although they are in contact with each other, since the inclination angle is gentle, the fourth link can pass over the convex portion TB without generating a large resistance. Therefore,
There is no inconvenience in opening the door. However, as shown in FIG. 3, whether or not to use this mechanism action can be opened and closed with the auxiliary plate member removed according to the preference of the user.

Further, in the above description, the surface CS of the bearing portion JB has an arc shape, and the concave portions K1 and K are provided at the two positions thereof.
2 is provided, but these are not provided at all, and the fourth link is simply rotatable about the pin P4B as a pivot.
The link has a mechanism for only urging the coil spring R as the urging means for the second pressing member M2, while the above-mentioned convex portion TB is provided inside the door-side base portion DB. It may be a hinge device.

In this case, when a person tries to close the door, the second pressing member and the convex portion are engaged with each other just before the door is completely closed, and at least the closing force of the door is reduced. If the closing momentum is moderate, temporarily stop the door momentum,
Then press it further to close it completely. In any case, there is an effect that the door can be prevented from hitting the edge of the housing or the like and generating a loud noise. The convex portion TB may not be formed on the detachable auxiliary plate member but may be integrally formed on the inside of the door side base portion DB so as to project.

In addition, the hinge device described above is usually provided at two upper and lower positions with respect to the door. In this case, if the gap between the left and right doors is not uniform in the upper and lower positions, the above-described hinge device is used. As described above, the clearance can be adjusted by adjusting the position of the lower member of the housing side base portion with the other screw N2. Furthermore,
In the above description, the furniture and the like have been described on the assumption that they are made of sheet metal such as steel, but the same applies to wooden furniture and the like, and there is no limitation.

[0040]

As is apparent from the above description, according to the present invention, it is possible to provide a hinge device that can more effectively use a storage space for furniture or the like.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a hinge device according to the present invention.

FIG. 2 is an operation explanatory view of furniture incorporating the hinge device according to the present invention.

FIG. 3 is an operation explanatory view of a partial mechanism due to partial breakage.

FIG. 4 is an operation explanatory view due to partial fracture in a state different from FIG.

FIG. 5 is an operation explanatory view of another partial mechanism due to partial breakage.

FIG. 6 is an operation explanatory view by partial fracture in a state different from FIG.

[Explanation of symbols]

DB Door side base KB Case side base K1 first recess K2 second recess KK steep slope L1 first link L2 second link L3 Third Link L4 4th link M1 first pressing member M2 second pressing member SP link housing recess TB convex part

Claims (5)

[Claims] 1. A housing-side base portion attached to a housing, a door-side base portion attached to a door and having a link accommodating recess, and four links for swingably connecting the both base portions. In the hinge device, one end of the first link is rotatably connected to the housing side base part via a pivot, and the other end is rotatably connected to the outside of the one end of the second link via a pivot. The second link is arranged inside the third link and is rotatably connected via a pivot, and the other end is rotatably connected to the inside of the link accommodating recess of the door side base through the pivot. The third link has one end rotatably connected to the housing side base portion via a pivot and the other end rotatably connected to one end of the fourth link via a pivot. The other end is rotatable inside the link housing recess of the door side base via a pivot. It is connected and the door can be opened to an opening of about 180 degrees with respect to the housing. When the door is closed, the four links can be almost stored in the link storage recess of the door side base part. A hinge device characterized by being present. 2. A housing-side base portion attached to a housing, a door-side base portion attached to a door and having a link accommodating recess, and four links for swingably connecting the both base portions. In the hinge device, one end of the first link is rotatably connected to the housing-side base through a pivot, and the other end of the first link is rotatable outside or inside the one end of the second link through the pivot. The second link is disposed inside the third link and is rotatably coupled via a pivot, and the other end is pivotally rotatable inside the link accommodating recess of the door-side base. The third link has one end rotatably connected to the housing-side base portion via a pivot and the other end rotatably connected to one end of the fourth link via a pivot. The other end of the link is inside the link accommodating recess of the door side base through the pivot. The doors are movably connected to each other, and the doors can be opened to an opening of about 180 degrees with respect to the housing. When the doors are closed, the four links are almost in the link accommodating recesses of the door side base portion. The fourth link is storable and includes a first pressing member disposed on the other end side and a biasing unit that constantly biases the first pressing member. Inside the link accommodating recess of the door-side base part that rotatably connects the other end of the shaft via the pivot, there is a bearing part through which the pivot is inserted, and the outer periphery of the bearing part is the fourth link. When the first pivots via the pivot, the first
A contact surface with which the pressing member abuts, a first concave portion that allows the first pressing member to be dropped at the front position of completely closing the door, and that engages when the door is closed, approximately 180 degrees And a second recess engaged in the open state. 3. A second pressing member having a long hole having a long axis diameter longer than an outer diameter of the pivot, the pivot being provided at the one end of the fourth link is inserted into the fourth link. The urging means always urges the first and second pressing members in a direction to separate them from each other, and the major axis extends along the urging direction. Inside the link accommodating recess, there is provided an engaging portion capable of engaging with the second pressing member at a position slightly before the door is completely closed, and an engaging portion between the engaging portion and the second pressing member. When a force greater than a predetermined value is applied to the door in the closed position direction in the engaged state of the engaging portion and the second pressing member, the second pressing member with respect to the pivot in the slot. The hinge device according to claim 2, wherein the hinge device has such a size and shape that the engagement can be released by the movement of the pressing member within the movable range. 4. A housing-side base portion attached to a housing, a door-side base portion attached to a door and having a link accommodating recess, and four links for swingably connecting the both base portions. In the hinge device, one end of the first link is rotatably connected to the housing-side base through a pivot, and the other end of the first link is rotatable outside or inside the one end of the second link through the pivot. The second link is connected to the inside of the third link so as to be rotatable via a pivot, and the other end is rotatable to the inside of the link accommodating recess of the door-side base via the pivot. The third link has one end rotatably connected to the housing-side base portion via a pivot and the other end rotatably connected to one end of the fourth link via a pivot. The other end of the link rotates inside the link accommodating recess of the door-side base via a pivot. The doors are movably connected to each other, and the doors can be opened to an opening of about 180 degrees with respect to the housing. When the doors are closed, the four links are almost in the link accommodating recesses of the door side base portion. A second pressing member that is storable and has a long hole that has a long axis diameter longer than the outer diameter of the pivot, with the fourth link being inserted with the pivot provided at the one end of the fourth link. And a biasing means for constantly biasing the second pressing member, wherein the major axis is along the biasing direction of the biasing means, and on the other hand, inside the link accommodating recess of the door side base part. , At a position slightly before the door is completely closed, an engaging portion that can engage with the second pressing member is provided, and an engaging portion between the engaging portion and the second pressing member is the engaging portion. When a force greater than a predetermined value is applied to the door in the closing position direction in the engaged state of the portion and the second pressing member, A hinge device having a size and shape capable of being disengaged by a movement within a movable range of the second pressing member with respect to a pivot in a long hole. 5. The engagement portion is a mountain-shaped convex portion, one slope is a steep slope, and the opposite slope has a small resistance to the movement of the second pressing unit when the door is opened. The hinge device according to claim 3 or 4, wherein the hinge device has a gentle slope.