JPH0122875Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses a link mechanism to connect a mounting plate that is fixed to the mounting frame of the door and a cup-shaped socket that fits into the recess of the door and fixes the door. This is about a hinge.

Hitherto, various types of hinges having the above-described structure are already known which have a function of holding the door closed.

For such hinges, it is desirable for ease of use to be able to open the door with a small force and to obtain a large closing force, but door closing devices are generally constructed to utilize the characteristics of springs. and
When using the conventional hinge, there was a problem in that, due to its structure, in order to obtain a large force to hold the door closed, a large force was also required to open the door.

Therefore, as a result of studies in view of the above-mentioned conventional circumstances, the present invention aims to provide a hinge that can obtain a large closing force and can open the door with a small force.

The present invention will be described in detail below based on the illustrated embodiments. As shown in FIGS. 1 and 2, a door mounting body 1
When the hinge of the mounting plate 3 is fixed by screws 2, the U-shaped front end 3a protrudes forward and inward and fits into the recess 4a provided on the back side of the door 4. A side edge portion of a cup-shaped socket 5 fixed with a screw (not shown) is connected by both first and second links 6 and 7.

Both the first and second links 6, 7 are accommodated in the socket 5 as shown in FIG. 1 when the door is closed, and are housed in the socket 5 as shown in FIG. 2 when the door is opened. The first door is bent so that it can be opened at a wide angle across the side edge of the door 4 and the outer end of the door 4.
The link 6 is connected to the front end 3 of the mounting plate 3.
a The ends of the socket 5 on the tip side are pivotally supported by shaft pins 8 and 9 on the inner side of the side edge thereof, while the second link 7
The ends are pivoted by shaft pins 10 and 11 at a rear position on the side of the mounting plate 3 by an appropriate distance from the front end 3a of the mounting plate 3, and toward the inner side of the side edge of the socket 5, respectively. .

Further, pressure receiving pieces 12, 12 are provided at the ends of the first link 6 which are pivotally supported with the mounting plate 3, and are bent rearward, that is, protrude toward the second link 7 side.

Furthermore, the front end 3 of the mounting plate 3
a, on its proximal side there is a pressing piece 1 at the tip.
A pressing body 13 provided by tilting down the parts 4 and 14 forward.
However, there is a long hole 15 that is long in the front and back direction on the side plate.
The pressing body 13 is provided with a spring 16 interposed between it and the mounting plate 3.
A forward elastic force is applied to the pressing pieces 14, 14 by the pressure receiving pieces 1 of the first link 6.
The pressure receiving pieces 12, 12 are pressed in the counterclockwise direction in FIG.
The structure is such that the door closing force is applied by applying a counterclockwise rotational force to the link 6.

Here, the first link 6 is bent to have a substantially U-shaped cross section, and its both side plate portions 6a, 6a are bent.
The pressure-receiving pieces 12, 12 extend from the ends thereof.

On the other hand, the pressing body 13 has side plates 13b, 13b which are approximately doglegged in front and are integrally connected to both ends of the connecting plate 13a, and the side plates 13b, 13b are bent from the connecting portion with the connecting plate 13a. The cross section is formed into a substantially U-shaped cross section, and a plate material 13c,
13c is constructed to have the same width as the first link 6, that is, the spacing between the pressure receiving pieces 12, 12, and thereby the pressure pieces 14, 14 and the pressure receiving piece 1 as described above.
2 and 12 are arranged to come into elastic contact with each other in a detachable manner.

Moreover, the pressing pieces 14, 14 have an inner inclined surface 14
The pressure receiving pieces 12, 12 are elastically contacted with the tip surfaces 14c, 14c in a detachable manner. Due to the moving force, the inclined surfaces 14a, 14a and the tip surface 14
This is to apply rotational force to the pressure receiving pieces 12, 12 via the pressure receiving pieces 12, 14c.

Further, the tips of the pressing pieces 14, 14 and the pressure receiving pieces 12, 12 are preferably formed into arcuate surfaces 14b, 14b, 12a, 12a, respectively, so that they can be smoothly engaged and disengaged by the opening/closing force of the door 4.

The spring 16 is inserted into the center hole 13d of one plate 13c, and one end of the spring 16 is inserted into the center hole 13d of the other plate 13c.
3c, and the other end is supported by a fixed shaft 17 installed on the mounting plate 3. However, the means for attaching the spring 16 is not limited to the illustrated example; It is optional as long as it can be elastically biased forward.

Furthermore, it is convenient to use the shaft pin 10 of the second link 7 as the supporting means for the mounting plate 3 of the pressing body 13, as the structure can be simplified, as shown in the illustrated example, but it is preferable to support it with a separate dedicated shaft pin. You may also do so.

Furthermore, since the pressing body 13 must be supported on the mounting plate 3 while preventing its rotation, for example, notch grooves 18, 18 may be provided in the rear ends of the side plates 13b, 13b to be long in the front and back direction. It is preferable to engage the fixed shaft 17 in a slidable manner.

The mounting plate 3 is attached to the first and second supporting members 3b fixed to the door mounting body 1.
A movable member 3c having both links 6 and 7 pivotally connected thereto is fixed by a fixing screw 19 and an adjusting screw 20 so as to be movable back and forth and adjustable in tilt.

When the door 4 is attached to the door mounting frame 1 as shown in FIG. 1 using this configuration,
When the door is closed, the pressing pieces 14, 14 of the pressing body 13 and the pressure receiving pieces 12, 12 of the first link 6 engage as shown in FIG. It comes off just like that.

When the door 4 is opened, the first link 6 rotates clockwise about the shaft pin 8, and when the door is closed, it rotates counterclockwise, so the door 4 is rotated as shown in FIG. When closed, the pressure receiving pieces 12, 12 rotate counterclockwise from the state shown in FIG.
3 against the elastic force of the spring 16, the pressing piece 14 is slid and rotated further, and the pressing piece 14 engages with the upper inclined surface 14a at the same time as the door is closed.

In the closed state of FIG. 1, since the pressing body 13 is always pressed forward by the spring 16,
The pressing force is transmitted to the pressure receiving piece 12 as a rotational force in the counterclockwise direction via the inclined surface 14a of the pressing piece 14, so that the door closing force in the counterclockwise direction is applied to the first link 6 using the shaft pin 8 as a fulcrum. is energized, so that the door 4 is held closed.

When the door 4 is opened from the closed state, the first link 6 is rotated clockwise in FIG. 1, so the pressure receiving pieces 12, 12 are also rotated in the same direction. Press 14, 14, so
Since the pressing body 13 retreats against the spring force, the pressure receiving pieces 12, 12 are removed from the pressing pieces 14, 14, and when the door 4 is fully opened, the pressing pieces 12, 12 are removed from the pressing pieces 14, as shown in FIG. 14, 14 and the pressure-receiving pieces 12, 12 are in a detached state, and the pressing body 13 is pressed forward by the spring 16, so that the pressure-receiving pieces 12, 12 receive a force in the clockwise direction.

In other words, since the first link 6 is given a rotational force in the direction in which the door 4 opens, the door 4 is held in the open position.

As explained above, according to the hinge according to the present invention, the front end 3a of the mounting plate 3 fixed to the door mounting body 1 and the side edge part of the socket 5 fixed to the door 4 are connected to the first , in a hinge which allows the door to be freely opened and closed by connecting both ends of the second links 6 and 7 with a link mechanism pivotally connected to the above-mentioned two parts respectively, and when the mounting plate 3 is in use, the hinge faces forward and inward. In the front end portion 3a which protrudes and is formed in a U-shaped frame shape, a pressure receiving piece 12, 12 is provided protruding rearward on the side of the mounting plate 3, and within the front end 3a of the mounting plate 3, facing the pressure receiving pieces 12, 12, pressure pieces 14, 14 are provided at the tips facing toward the tips. When the pressing body 13 is provided with the downwardly inclined inner inclined surfaces 14a, 14a, the side plates 13b, which are disposed above and below when the hinge is in use,
The shaft pin 10 fixed to the front end portion 3a is inserted into the elongated holes 15, 15 formed in the front end portion 13b, and housed so as to be movable in the front and rear direction.
3 and the mounting plate 3, a spring 16 is provided which elastically urges the pressing body 13 forward, which is the side of the pressure receiving pieces 12, 12.
4, 14, the pressure receiving pieces 12, 1 of the first link 6
By applying a pressing force from the spring 16 in the direction of rotation of the door to the door 2, the door opening and closing functions are provided.
Not only can the door 4 be held in the open and closed positions without the need to attach a stopper or the like to the When engaging and disengaging from the pressing pieces 14, 14 against the spring 6, the pressure receiving pieces 12, 112 slide on the pressing pieces 14, 14 which are tilted forward, causing the pressing body 13 to retreat against the spring force. Therefore, the door 4 can be opened and closed smoothly with a small force, and when the door is closed, the pressure receiving piece 12 is pressed and rotated in the closing direction of the door 4 by the pressing piece 14. , it is possible to obtain a large closing force, and even when the door is opened, the pressing piece 14
By pressing and rotating the pressure receiving piece 12 in the opposite direction to that described above by the front end surface 14c, the door open state can be reliably maintained.

Also, a pressing body 13 is attached to the mounting plate 3.
can be easily attached using the shaft pin 10 for the link pivot, and since it is sufficient to protrude the pressure receiving piece 12 from the first link 6, the structure is extremely simple and can be manufactured at low cost.

[Brief explanation of the drawing]

Figures 1 and 2 are a vertical side view when the door is closed and a side view when the door is open, respectively, showing the usage state of the hinge according to the present invention. Figure 3 is a part of the first link of the hinge and the pressed state. It is a perspective view of a body. 1...Door mounting body, 3...Mounting plate, 3a...Front end of mounting plate,
5...Socket, 6...1st link, 7...2nd
Link, 10... Axis pin, 12... Pressure receiving piece, 13
...Press body, 13b...Side plate of press body, 14...
Pressing piece, 15...long hole, 16...spring.

Claims (1)

[Scope of utility model registration request] A link mechanism in which the front end of the mounting plate fixed to the door mounting body and the side edge of the socket fixed to the door are pivotally connected to both ends of the first and second links, respectively. In the hinge that is connected by the hinges to freely open and close the door, when the hinge of the mounting plate is in use, the front end, which is formed in a U-shaped frame shape and protrudes forward toward the inside, has a lower part than the second link. A pressure-receiving piece is provided to protrude rearward toward the mounting plate side from one end of the first link pivotally mounted on the front end side,
In the front end of the mounting plate so as to face the pressure receiving piece, there is provided a pressing body at the tip thereof with an inner inclined surface with the pressing piece downwardly inclined toward the tip side;
When the hinge is in use, a shaft pin fixed to the front end thereof is inserted into a long hole drilled in the side plates disposed above and below the hinge so as to be movable in the front and rear direction. A spring is provided between the plate and the spring that elastically urges the pressing body forward, which is the pressure-receiving side, so that the pressing piece causes the pressure-receiving piece of the first link to be pressed by the spring in the rotational direction of the door. A hinge that can open and close a door by applying pressure.