JPH0229176Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application: This invention relates to the improvement of furniture hinges, particularly hinges that combine four arms to screw open and close a base metal fitting and a mounting metal fitting.

Conventional technology: Conventional screw links of this type include those in which the rotating arm is formed in the shape of an ordinary screw thread piece (Japanese Utility Model Application Publication No. 13658/1983), and those in which the rotating arm of the same shape is formed in the shape of a parallelogram. There was one with a W-shaped rotating arm (Japanese Unexamined Patent Publication No. 48-58639), and one with a W-shaped rotating arm (Japanese Utility Model Application No. 51-85165), but in both cases, the shaft attachment part floated in the air during rotation. As a result, the door is unstable when opening and closing, especially when the door is in the open position, and a small impact can cause problems in the rotating element, making it impossible to open and close.

The problem that the idea seeks to solve. : To prevent instability of the door during opening/closing movements, to eliminate instability in the open position of the door, and
The purpose is to increase the opening angle of the door.

Composition of the invention: An example of the implementation of the invention will be explained with reference to the figure. 1 is a door mounting bracket, 2 is a base bracket, 3 is a first arm,
4 is a second arm, 5 is a third arm, and 6 is a fourth arm.

One end of the first arm 3 is rotatably attached to the door mounting bracket 1 through a first shaft 7, and one end of a third arm 5 is rotatably attached to the second shaft 8. One end of the second arm 4 is rotatably attached to the third shaft 9, and one end of the third arm 5 is rotatably attached to the fourth shaft 10.

The other end of the first arm 3 and the other end of the second arm 4 are rotatably connected to each other by a first moving shaft 11.
The first arm 3 and the second arm 4 form an inverted V shape.

Similarly, the other end of the third arm 5 and the other end of the fourth arm 6 are rotatably attached to the second shaft 12, and both the third arm 5 and the fourth arm 6 have a slightly flat shape. It forms an inverted V shape.

Further, the second arm 4 and the third arm 5 are rotatably connected to each other by an intersecting shaft 13 at the intersection thereof.

That is, the second arm 4 and the third arm 5 intersect in an X-shape and are rotatably attached to the intersecting shaft 13. This cross shaft 13 functions as a rotation shaft while moving its position when the door 21 is opened and closed.

One end of the first arm 3 is pivotally attached to the upper end of the second arm 4 by a first moving shaft 11.
The other end of the arm 3 is pivotally attached to the outer end 27 of the mounting bracket 1 by a first shaft 7.

Further, the lower end of the second arm 4 is pivotally attached to the front end 28 of the base metal fitting 2 by a third shaft 9.

The front end of the third arm 5 is pivoted to the inner end 29 of the mounting bracket 1 by the second shaft 8, and the rear end of the third arm 5 is pivoted to the upper end of the fourth arm 6 by the second moving shaft 12. There is.

The lower end of the fourth arm 6 is the rear end 3 of the base metal fitting 2.
It is pivoted to 0.

The four arms configured as above are attached to door 2.
When opening or closing the door mounting bracket 1, the door mounting bracket 1 and the base bracket 2 are opened and closed by screwing the door mounting bracket 1 and the base bracket 2 by rotating in conjunction with each other around the cross shaft 13 as the central axis of the entire body.

Next, the side wall 14 of the third arm 5
The line 15 connecting the second dynamic axis 12 is enlarged on the third axis 9 side to form a first enlarged part 16, and the intersecting axis 1
3 and the second shaft 8 on the first moving shaft 11 side, forming a second enlarged portion 18.

The shape and size of the first enlarged portion 16 are such that when the door mounting bracket 1 and the base metal fitting 2 are folded, as shown in FIG. Be careful not to hit the side plate 19 of the box body, and as shown in FIG.
The shape and size of the first enlarged portion 16 are determined so that the first enlarged portion 16 can cover the third shaft 9.

The shape and size of the second enlarged portion 18 are such that when the door mounting bracket 1 and the base metal fitting 2 are opened to the maximum extent, the second enlarged portion 18 is connected to the first moving axis 1 as shown in FIG. Its shape and size are determined so that it can cover the

Further, the first arm 3 is provided with a fitting groove 20, and the distance between the first shaft 7 and the fitting groove 20 is made equal to the distance between the first shaft 7 and the second shaft 8. , when the door 21 is opened and the door mounting bracket 1 and the base bracket 2 are opened to the maximum extent, the fitting groove 20 fits into the second shaft 8, as shown in FIG. The purpose of this fitting is to increase the opening angle at the final stage of the mutually interlocking rotational movement of the four arms, and to ensure the fixed state of each arm when the door 21 is opened. The width of the groove 20 is approximately equal to the diameter of the second shaft 8, and the depth of the fitting groove 20 is made as deep as possible within the design range.

22 is a back plate that connects the left and right arms, and the back plate 2
2 is provided with an oval hole 23.

The base metal fitting 2 consists of a mounting seat 24 and a base 25.

Function and Effect: The furniture hinge of the present invention has the structure as shown in the drawings and the above explanation, and is installed and used as follows.

First, attach the mounting seat 2 to a predetermined position on the side plate 19 of the box body.
Screw on 4. Next, screw the door mounting bracket 1 into a predetermined position on the door 21, open the hinge, and
Place it on the mounting seat 24 and attach it to the base 25 with the screw 26.
Screw it onto the mounting seat 24 to complete the installation.

A description of the method for adjusting the closing position of the door 21 will be omitted.

The proposed furniture hinge installed as described above is
When the door 21 is closed, each arm is folded as shown in FIG.
The first ampulla 16 of the fourth axis 10 and the base 25
Also, since the second enlarged portion 18 overlaps with the third shaft 9 and the lower end of the door mounting bracket 1, the door mounting bracket 1 and the base bracket 2 do not shake against each other. , Therefore, the closed door 21 does not rattle.

Furthermore, when the door 21 is fully opened, each arm is fully extended as shown in FIG. The first enlarged portion 16 and the second enlarged portion 18 overlap the entire second arm 4. Moreover, since the fitting groove 20 of the first arm 3 and the second shaft 8 are deeply fitted, the door mounting bracket 1 and the base metal fitting 2 are securely connected even when the door 21 is in the fully open position. There is no mutual rattling.

Furthermore, by fitting the second shaft 8 into the fitting groove 20, the relative position of each arm is fixed when the door 21 is open, so the arm mechanism is protected from excessive external force, which may cause failure. It is durable and has great durability.

Note that, since the second shaft 8 is configured to fit into the fitting groove 20 of the first arm 3, the door mounting bracket 1 can be rotated about the first shaft 7 by the depth of the fitting groove 20. Since the door 21 can be moved, the opening angle of the door 21 becomes larger accordingly.

As described above, the present invention is characterized in that there is no rattling when the door is opened and closed, and therefore, the durability is high, and the opening angle can be made larger.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the state of use of the proposed hinge. Fig. 2 is a plan view when the door is closed, Fig. 2 is a plan view when the door is half open, and Fig. 3 is a plan view when the door is fully opened. FIG. 4 is a cross-sectional view for explanation, FIG. 5 is a perspective view showing the state of use, and FIG. 6 is a plan view for explaining the interlocking of the arms. In the figure, 1...Door mounting bracket, 2...Base bracket, 3...First arm, 4...Second arm, 5
...3rd arm, 6...4th arm, 7...1st
Axis, 8...2nd axis, 9...3rd axis, 10...4th axis
Axis, 11...First moving axis, 12...Second moving axis, 13
...Cross axis, 14... Side wall, 16... First ampulla, 18... Second ampulla, 20... Fitting groove, 24
...Mounting seat, 25...Base, 27...Outer end of door mounting bracket, 28...Front end of base bracket, 29...
The inner end of the door mounting metal fitting, 30... is the rear end of the base metal fitting.

Claims (1)

[Scope of Claim for Utility Model Registration] Furniture hinges, particularly hinges that combine four arms to screw open and close a base metal fitting and a mounting metal fitting, in which the second arm 4 and the third arm 5 intersect in an X-shape. one end of the first arm 3 is rotatably attached to the upper end of the second arm 4 via the first moving shaft 11; The other end is rotatably attached to the outer end 27 of the mounting bracket 1, and the lower end of the second arm 4 is attached to the base bracket 2.
The third arm 5 is rotatably pivoted on the front end 28 of the third arm 5, and the front end of the third arm 5 is attached to the inner end 2 of the mounting bracket 1.
9, the rear end of the third arm 5 is rotatably connected to the upper end of the fourth arm 6, and the lower end of the fourth arm 6 is rotatably connected to the rear end 30 of the base metal fitting 2. A fitting groove 20 is provided in the first arm 3, so that when the door 21 is opened, the fitting groove 20 fits with the second shaft 8. The distance to the fitting groove 20 is made equal to the distance between the first shaft 7 and the second shaft 8.
The line 15 connecting with the moving axis 12 is enlarged on the third axis 9 side, and the side wall 14 of the third arm 5 is connected to the intersecting axis 13.
A hinge for furniture, characterized in that a line 17 connecting the second axis 8 and the second axis 8 widens on the side of the first moving axis 11.