JPH0363634B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a furniture hinge with a closing mechanism.

[Conventional technology]

It has two hinge links in the hinge case on the door side, the inner end of the hinge link being pivotally connected to the hinge case, and the outer end thereof being pivotally connected to the hinge arm to form a hinge quadrilateral. Furniture door hinges are known which have a closing mechanism in which a pressure member prestressed by a coil spring is placed between the outer ends of two hinge links. (U.S. Patent No.
4123823) Also, hinges with a separate closing mechanism are already known.

The basic advantage of a hinge of the type described in the above-mentioned US Pat. No. 4,123,823 is that no separate closing member, such as a magnetic supplementary member, is required for the furniture.

[Problem to be solved by the invention]

However, the hinges of furniture with the above-mentioned closing mechanism generally have to be pushed against the spring pressure of the closing mechanism when the door is opened, and when the door is past the dead center, the door cannot be moved by the closing mechanism. It must be pressed outwards, ie into the open position.

When the door is closed, the closing mechanism operates in a similar manner but in reverse order.

The main drawback of such hinges is that the closing action of the hinge starts substantially when the door is in the 45° open position, i.e. the door is closed relatively quickly;
In other words, the actual action of the hinge closing mechanism is
That is, it is started when it is not yet desired. Furthermore, furniture doors are often slammed due to their long closing action lengths, thus giving rise to undesired noises and further disadvantages associated with high stresses acting on the hinge axes and links.

The object of the invention is to freely select the angle of the furniture door relative to the actual closing plane of the furniture door at which the closing action occurs and to make it relatively small, preferably between 10° and 15°. The object of the present invention is to provide a hinge of the above-mentioned type, which is capable of performing the following steps. therefore,
There is no need to worry about overcoming the dead center of the hinge when opening or closing the door, and furthermore, the hinge closing mechanism according to the invention is housed within the hinge arm in a very compact manner. be.

[Means to solve the problem]

The above object of the invention provides that the inner hinge link is formed of a lever having an arm on one side and an arm on the other side, and the pressure member extends into the hinge arm of the inner hinge link. The pressure member is pivotally connected to the end by a bolt, and the pressure member rests directly or indirectly on the hinge axis of the outer hinge link on the side of the hinge arm in the closed position of the hinge, and in the open position the pressure member rests directly or indirectly on the hinge axis of the outer hinge link. This is achieved by a hinge characterized in that it has a shape that directly or indirectly abuts on the inner support surface of the hinge arm.

In one embodiment of the present invention, the pressure member is curved so that one leg of the torsion coil spring abuts on the hinge axis of the outer hinge link or on the inner support surface of the hinge arm, and the other leg is curved. or the pressure member has a curved movement path which abuts on the hinge axis of the outer hinge link or on the inner support surface of the hinge arm. a retaining arm having a retaining arm; a stopper on one leg that engages with the retaining arm;
It is proposed to use a torsion coil spring with the other leg abutting the hinge axis of the inner hinge link.

The use of torsion coil springs provides a high degree of functional safety, since the torsion coil springs, unlike compression coil springs, do not require any guiding means and are easily installed in the hinge arm.
Furthermore, there is no need for an additional pressure element for the closing function.

In yet another embodiment, the pressure member can be provided by suspending one end of a helical compression spring on an inner arm of an inner hinge arm. Furthermore, a roller is mounted on the hinge axis of the outer hinge link, or a separate insert member is arranged on the hinge arm, said insert member being on the hinge axis of the outer hinge link as the entire travel path of the pressure member. It is provided to have a pressure surface extending over the upper and inner concave support surfaces of the hinge arm and designed as a guide surface for the pressure member.

In that case, the inner support surface of the hinge arm need not be specially manufactured for the closure mechanism, but may depend on the shape of the insert.

Preferably, the insert is also made of a plastic material, such as polyamide or polyacetate.

〔Example〕

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

As can be seen in FIG. 1, the hinge according to the invention has a hinge arm 1 fixed to a furniture side wall 7 by a base plate 8. The base plate 8 is fixed to the furniture side wall 7 in the usual manner by screws or dowels. The hinge arm 1 is held on the base plate 8 by a tightening screw 10. Further, the hinge is provided with an adjustment screw 11 for adjusting the joint surface, and the adjustment screw 11 is attached to the female thread of the hinge arm 1 and is in contact with the substrate 8. The hinge case 2 of the hinge is inserted into the door 9.

The hinge arm 1 has a hinge shaft 1 on the hinge arm.
2, 13, and the hinge shaft 1 on the hinge case 2
4, 15 and are connected to the hinge case 2 by inner and outer hinge links 6, 3 attached respectively.

The inner hinge link 6 has two arms 6a, 6 that rotate around the hinge shaft 12 of the hinge arm 1.
It is a lever with b. The free end of the outer arm 6a of this hinge link 6, that is, the hinge shaft 1
On the outside of the support points 2 and 14, the retaining arm 1
7 is pivotable about the bolt 16, the pivoting movement is such that the passage of the pressure member 4 is connected to the hinge shaft 13 attached to the tip of the hinge arm 1 of the outer hinge link 3. It is thus limited by the support surface 18 on the hinge arm 1.

In the embodiment according to FIGS. 1, 2 and 6, 7, 8, the pressure member 4 has a retaining arm 17. In the embodiment according to FIGS.

In the embodiment according to FIGS. 1, 2 and 6, 7, 8, the pressure member 4 abuts one end of the helical compression spring 5 against one arm 6b of the inner hinge link 6. In the embodiment according to FIGS.

In this case, due to this arrangement of the pressure member 4, it rests on the hinge shaft 13 in the closed position of the door 9 and presses the inner hinge link 6 into the closed position. In other words, the door 9 is held in the closed position.

When the door is opened or moving through the open passage, the pressure member 4 is activated as shown in FIGS.
In the embodiment according to FIGS. 7 and 8, there is a movement from the hinge axle 13 onto the inner support surface 18 of the hinge arm 1, but in this case it is not loaded by the helical compression spring 5. That is, the pressure member 4 and the compression coil spring 5
are equally tense.

When the door 9 is closed, the pressure member 4 returns to the hinge shaft 13, but the tension state of the compression coil spring 5 does not change. Thus, with the hinge according to the invention, the person using the furniture according to the invention keeps the compression coil spring tensioned both when closing and when opening the hinge. Also, the opening and closing of the door 9 does not generate loud banging noises. It is self-evident that even if the dead center is not exceeded, the door 9 is still held absolutely securely in the closed position by the compression coil spring 5.

The curve of the pressure surface on the pressure member 4 can obviously be selected such that the door 9 closes at a desired angle, for example 10[deg.], relative to the closing surface.

In the embodiment according to FIGS. 6, 7 and 8, on the hinge arm 1 there is a closed area 18a and an open area 1.
A separate insert 19 made of plastic material such as polyamide, polyacetate, etc. having a diameter of 8b is provided on the hinge shaft and on the inner support surface, and
presses the insertion member 19. The insertion member 19
is attached to the hinge shaft 13 and the hinge arm 1
abuts against the edge 20 of.

Due to the arrangement of the insert 19 according to the invention, the pressure member 4 abuts the same structural member in the closed position of the door 9 (as shown in FIG. 6) as well as in the open position.

When the door is opened and closed, the pressure member 4 is connected to the pressure surface 1
Move along 8. Again, there is no load from the pressure spring 5. That is, the pressure member 4 and the pressure spring 5 remain equally tensioned.

The curve of the pressure surface 18 on the insert 19 clearly shows that the door 9 is in contact with the closing surface, e.g.
It can be selected to close at the desired angle of 10°. The hinge can also be provided with different inserts 19 having differently extending pressure surfaces 18. By this method of using pressure members, different closing angles can be obtained without requiring any changes in the hinge arms.

The closing mechanism uses a torsion coil spring 21 in the embodiment according to FIGS. 4 and 5, which is attached to one leg 21a on the hinge shaft 14 of the outer hinge link 3 and on the inner support surface 18 of the hinge arm 1. holding arm 1 having a curved surface abutting on
7 stoppers 24, and the other leg 21b abuts against the hinge shaft 12 of the inner hinge link 6.

The pressure member 4, like the torsion coil spring 21, is hingedly connected to the inner hinge link 6 by means of a bolt 16.

The pressure element 4 has a movement path 22 on the holding arm 17 which forms a guiding curve for the closing pressure. The movement path 22 consists of two parts 22a, 22b with curved surfaces in opposite directions. Portion 22b corresponds to the open position of the hinge. In the closed position the pressure point D is between the two parts 22a, 22b.

The pressure member 4 rests with its movement path 22 on the hinge shaft 13 of the hinge arm 1 of the outer hinge link 3. The rollers 23 are arranged around the hinge shaft 13 to reduce the friction between the pressure member 4 and the hinge shaft 13.

In this embodiment, the pressure member 4 is provided with a transverse stop 24 for the torsion coil spring 21.

In the embodiment according to FIG. 3, no separate pressure member is provided. The torsion coil spring 21, which is again attached to the bolt 16 of the outer arm 6a of the inner hinge link 6, has two legs on each hinge shaft 12, 13 of the inner hinge link 6 and the outer hinge link 3 to the hinge arm 1. Part 21b,
21a are brought into contact with each other. The hinge shaft 13 of the outer hinge link 3, on which one leg of the torsion coil spring 21 designed with a curved surface as the pressure member 4 is moved, is fitted with a roller 23 in order to reduce friction, as in the previously described embodiments. It is equipped with

The leg portion 21a of the torsion coil spring 21, which is the pressure member 4, has two curved portions 4a and 4b having curved surfaces extending in opposite directions. The outer curved portion 4a corresponds to the open position of the hinge. In the closed position, the pressure point is the leg 21 of the torsion coil spring 21.
It is located between part 4a and part 4b of a.

In Figures 3 and 4 the hinge is shown in the closed position.

〔Effect of the invention〕

With the hinge of the present invention, the angle of the furniture door with respect to the actual opening/closing surface can be selected from a relatively small angle of 10° to 15°, and the banking that closes naturally with a snap like in the past can occur. The closure is completely secure, and the closure mechanism of the hinge is housed within the hinge arm in a very compact manner.

[Brief explanation of drawings]

1 shows a sectional view of the hinge according to the invention in the closed position, FIG. 2 shows a sectional view of the hinge according to the invention in the open position, and FIG. 3 shows the hinge arm in the area of the closing mechanism of the second embodiment. 4 is a sectional view similar to FIG. 3 showing the third embodiment of the present invention, and FIG. 5 is a sectional view taken along the line -
FIG. 6 is a sectional view showing a further embodiment of the hinge according to the invention in the closed position;
FIG. 7 is a sectional view showing the hinge in its open position, and FIG. 8 is a sectional view showing the insert member and pressure member. 1... Hinge arm, 2... Hinge case, 3
...Outer hinge link, 4...Pressure member, 4
a, 4b...Curved portion, 5...Compression coil spring,
6... Inner hinge link, 6a... Arm on the other side, 6b... Arm on one side, 7... Furniture side wall, 8... Board, 9... Door, 12, 13... Hinge shaft, 16 ... Bolt, 17 ... Holding arm, 1
8... Inner support surface (pressure surface), 18a... Closed area, 18b... Open area, 19... Insert member, 2
1...Torsion coil spring, 22...Movement path, 22
a...Closed area, 22b...Open area, 23...
Roller, 24... Lateral stopper.

Claims (1)

[Scope of Claims] 1. Two hinge links 3 and 6 are provided in the hinge case 2 on the side of the door 9, and one end of the hinge links 3 and 6 is pivotally connected to the hinge case 2,
Furniture having a closing mechanism, the other end of which is pivotally connected to the hinge arm 1 to form a hinge quadrilateral, and a pressure member 4 pre-stressed by a coil spring 5 is installed between the outer ends of the two hinge links. In this door hinge, the inner hinge link 6 is connected to the arm 6 on one side.
b and the other arm 6a, the pressure member 4 extending into the hinge arm 1 of the inner hinge link 6;
A is pivotally connected to the end of a by a bolt 16, and when the pressure member 4 is in the closed position of the hinge,
The hinge arm 1 directly or indirectly abuts on the hinge shaft 13 of the outer hinge link 3 pivotally connected to the hinge arm 1, and in the open position.
A hinge characterized in that it has a shape that directly or indirectly abuts on the inner support surface 18 of the hinge. 2 The pressure member 4 is connected to the hinge shaft 13 of the hinge link 3 with one leg of the torsion coil spring 21 on the outside.
The patent is characterized in that it is curved with a curved surface 4a that abuts on the inner support surface 18 of the upper or hinge arm 1, and the other leg 21 abuts on the hinge shaft 12 of the inner hinge link 6. A hinge according to claim 1. 3 The pressure member 4 is placed on the hinge shaft 13 of the outer hinge link 3 and on the inner support surface 1 of the hinge arm 1.
a retaining arm 17 having a curved movement path 22 that abuts on the retaining arm; a stopper 24 of one leg 21a that engages with the retaining arm; and the other leg that abuts the hinge shaft 12 of the inner hinge link 6. The hinge according to claim 1, characterized in that it comprises a torsion coil spring 21 having a portion 21b. 4. The hinge according to claim 1, wherein the pressure member 4 suspends one end of a compression coil spring 5 on an inner arm 6b of an inner hinge arm 6. 5. The hinge according to claim 1, further comprising a roller 23 on the hinge shaft 13 of the outer hinge link 3. 6. An insertion member 18 is provided on the hinge shaft 13 of the outer hinge link 3 and on the inner support surface of the hinge arm 1, according to any one of claims 1 to 4. hinge. 7. Hinge according to claim 6, characterized in that said insert member 19 is made of plastic material.