JPS5910295Y2 - hidden hinge device - Google Patents

Description

[Detailed description of the invention] In this invention, the mounting member and the movable member are connected to each other by two connecting plates disposed on the inner surfaces of the mounting member and the movable member so as to be out of phase with each other, so that the mounting member and the movable member rotate in opposite directions. This relates to a so-called hidden hinge device, and is devised to elastically lock the hinge device when the door attached to a movable member is fully opened, thereby ensuring that the door can be held open.

An example of implementing the present invention will be explained in detail with reference to the drawings.
A first connecting plate 4 has a bent part 1 in the shape of a rectangular shape at the front end, bearing parts 2 are provided oppositely on both sides of the front end of the bent part 1, and a bearing tube part 3 is provided at the rear end. be.

Further, a second connecting plate 5 is provided which is shorter in length than the first connecting plate 4 and has a gently curved shape, and a fitting cylinder portion 6 is provided at one end of the second connecting plate 5. A bearing cylinder portion 7 is provided at the other end.

Further, a thin steel plate material having a length approximately ÷ the length of the second connecting plate 5 or an elastic plate material having the same effect is formed into a pressing circular part 9 with a connecting edge part 8 at the front end in the first half, and a rear end thereof. An elastic retaining piece 11 is provided with a fitting tube portion 10 thereon.

The bearing tube part 3 of the first connecting plate 4 is rotatably attached to the upper part of the distal end of the mounting member 12 by a shaft 13, and is located diagonally rearward and lower than the mounting part of the shaft 13 and above the mounting member 12. The bearing cylinder part 7 of the second connecting plate 5 is rotatably attached to the mounting member 12 with a space 15 between it and the plate part 14 through a shaft 16.

The elastic engagement piece 11 is inserted through the gap 15, and the fitting tube portion 10 at the rear end of the elastic engagement piece 11 is attached to the shaft 16 with the middle loosely interposed in the gap 15. It is rotatably mounted on a shaft 17 within a mounting member 12 at the upper rear of the second connecting plate 5, and the pressing circular portion 9 of the elastic engagement piece 11 faces above the rear end of the second connecting plate 5.

Then, the front end of the bent portion 1 of the first connecting plate 4 is connected to the movable member 1.
8, the bearing portions 2 on both sides of the front end are rotatably attached to the movable member 18 with a support shaft 20,
In addition, one end of the second connecting plate 5 is made to face inside the movable member 18, and the fitting cylinder portion 6 of the one end is positioned diagonally below the support shaft 20 so that it can freely rotate around the pivot shaft 21 on the movable member 18. It is pivoted as shown in FIG.

The mounting member 12 is attached to the inner surface 2 of the opening of the storage body 22.
3, and the movable member 18 is fitted and fixed inside one end of the door body 24, and opens the door body 24 from the closed state shown in FIG. 1, and opens the door body 24 as shown in FIG. In the state in the middle of opening, the pressing circular portion 9 of the elastic engagement piece 11 inserted through the gap 15 and facing above the rear end of the second connecting plate 5 does not come into contact with the second connecting plate 5 and is free. When the door body 24 is placed in this state, the door body 24 can be opened without any resistance, and when the opening operation continues and the door body 24 is fully opened as shown in FIG. The shaft 13 which is pivoted on the top of the tip of the movable member 12 and the fitting cylinder part 6 at one end of the second connecting plate 5 are
Inward of the extension line of the line A connecting the axis 21 which is attached to the axis 8,
The support shaft 20 that pivots the front end of the bending part 1 of the first series connecting plate 4 to the movable member 18 is dislocated, and the fitting cylinder part 6 of the second connecting plate 5 that interlocks with the first series connecting plate 4 is attached to the movable member 18. The pivot shaft 21 to be pivoted further turns above the support shaft 20, and the second connecting plate 5 floats upward, so that the upper surface of the rear end of the second connecting plate 5 and the inner surface of the upper plate portion 14 of the mounting member 12 are connected to each other. The elastic engagement pieces 11 are in contact with each other.
The connecting edge part 8 at the front end of the pressing circular part 9 comes into pressing contact, thereby suppressing free changes in the positional relationship between the support shaft 20 and the pivot shaft 21, and making it possible to stop and hold the door body 24 in the open state. .

Next, the operation of the present invention will be explained. The first series connecting plate 4 has a rectangular bent part 1 at its front end and bearing parts 2 are provided on both sides of the front end of the bent part 1, and the first series connecting plate A second connecting plate 5 which is shorter than 4 and can be bent loosely, and the first connecting plate 4 is
The rear end is rotatably attached to the top of the top of the mounting member 12,
The other end of the second connecting plate 5 is freely rotatably attached with a gap 15 between the mounting member 12 and the upper plate part 14 diagonally rearward and lower than the shaft attachment part, and the first series connection The front end of the bent portion 1 of the plate 4 is rotatably attached to one end of the bottom 19 of the movable member 18 by a support shaft 20, and a second connecting plate is located diagonally below the support shaft 20 and attached to the movable member 18. One end of the connecting plate 5 is rotatably fixed by a pivot 21, while a pressing circular part 9, which is made of an elastic plate and has a connecting edge part 8 at the front end, is provided in the front half with a length approximately divided by the length of the second connecting plate 5. The provided elastic retaining piece 11 is shaped, the elastic retaining piece 11 is inserted into the above-mentioned interval 15, and the rear end of the elastic engaging piece 11 whose middle is loosely interposed in the interval 15 is attached to the mounting member. 12, so that the pressing circular part 9 of the elastic engagement piece 11 faces above the rear end of the second connecting plate 5, the movable member 18 is fully opened, and the first connecting plate 4 is rotated freely. The support shaft 20 at the front end of the first connecting plate 4 is shifted inward of the extension of the line A connecting the shaft attachment part at the rear end and the pivot 21 at one end of the second connecting plate 5, and the first connecting plate When the pivot shaft 21 at one end of the second connecting plate 5 that interlocks with the support shaft 20 moves upward, the upper surface of the second connecting plate 5 moves upward. Since the front end of the pressing circular portion 9 of the elastic engagement piece 11 brought into contact is made to elastically contact the upper surface of the rear end of the second connecting plate 5 as shown in FIG. 3, the second connecting plate 5 has one end The pivot shaft 21 that is in contact with the inner surface of the series of connecting plates 5 and that connects with the movable member 18 at one end is restrained in a state where it is positioned above the support shaft 20 that connects the first series of connecting plates 4 and the movable member 18, and the pivot shaft 20 is prevented from rolling outward from the extension of the line A, the movable member 18 is kept open, and the door body 24 attached to the movable member 18 can be accurately held open.

Also, from this open state, apply a little force and push the door body 24 inward.
, the support shaft 20 turns outward from the line A, and one end of the second connecting plate 5 separates from the inner surface of the first connecting plate 4, and the one end moves outward from the second connecting plate 4.
As shown in the figure, the second connecting plate 5 moves downward, and the elastic retaining piece 11 separates from the upper surface of the rear end of the second connecting plate 5.
This allows the door to close smoothly.

In short, the present invention has a first connecting plate 4 having a rectangular bent portion 1 at its front end, and a second connecting plate 5 that is shorter than the first connecting plate and can be bent gently. The rear end of the series of connecting plates 4 is rotatably attached to the upper part of the tip of the mounting member 12 with a shaft 13, and there is a space between the upper plate part 4 of the mounting member 12 and the lower part of the diagonally rear side of the attachment part of the shaft 13. 15, and the other end of the second connecting plate 5 is rotatably attached to the shaft, and the front end of the bent part 1 of the first connecting plate 4 is rotated to one end of the bottom 19 of the movable member 18 by a support shaft 20. One end of the second connecting plate 5 is rotatably attached to the movable member 18, which is located diagonally below the support shaft 20, through a pivot 21, while the elastic plate is pressed into a circular shape. An elastic retaining piece 11 with a portion 9 provided at the front is inserted into the gap 15, and the elastic retaining piece 11 is loosely interposed between the gaps 15 and 15. The rear end is rotatably pivoted to the mounting member 12, and the pressing circular portion 9 of the elastic engagement engagement piece 11 is connected to the second connecting plate 5.
Since the rear end faces upward, when opening the door body 24 attached to the rotating member 18, the elastic retaining piece 11 is released in the middle of opening the door body 24, so that the door body 24 can be easily opened.
At the same time, the door body 24 is fully opened, one end of the second connecting plate 5 turns around and contacts the inside of the first connecting plate 4, and one end of the second connecting plate 5 is moved upward. When the second connecting plate 5 turns upward, the second connecting plate 5 moves upward.
The front end of the pressing circular portion 9 of the elastic engagement piece 11 whose upper surface is in contact with the upper plate portion 14 of the mounting member 12 is pressed into contact with the upper surface of the rear end as shown in FIG. It is possible to prevent the second connecting plate 5 that is in contact with the second connecting plate 5 and to reliably hold the door body 24 open.

That is, the hinge device of the present invention keeps the elastic engagement piece 11 in a state of no interference from the first connecting plate 4 and the second connecting plate 5 during the opening/closing operation, and the elastic retaining piece 11 prevents unnecessary repeated suppressing action. It is possible to easily open and close the door body 24 by preventing it from being damaged due to exposure, and the elastic engagement piece 1 is opened only when the door body 24 is fully opened.
1, the door body 24 can be reliably held in the open state.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention; Fig. 1 is a partially cut-away side view in the closed state, Fig. 2 is a partially cut-away side view showing the opening/closing operation state, and Fig. 3 is the fully opened state. FIG. 4 is a partially cutaway side view showing the state, and FIG. 4 is a perspective view of the elastic retaining piece. 1...Bending portion, 4...First series connecting plate, 5
...Second connecting plate, 9...Press circular part,
DESCRIPTION OF SYMBOLS 11...Elastic engagement piece, 12...Mounting member, 13...Shaft, 14...Top plate part, 1
5... Interval, 16... Axis, 17...
...Axis, 18...Movable member, 19...
・Bottom, 20... Support shaft, 21... Axis, A... Line.

Claims (1)

[Scope of utility model registration request] In a hinge in which a mounting member and a movable member are connected to each other by two connecting plates placed out of phase with each other on the inner surfaces of the mounting member and the movable member so that they can rotate in opposite directions, The rear end of the first connecting plate 4 shaped as shown in FIG. interval between 15
The other end of the second connecting plate 5, which can be bent into a loosely curved shape, is rotatably attached to the shaft 16, and the front end of the bent part 1 of the first connecting plate 4 is attached to the bottom of the movable member 18. One end of the second connecting plate 5 is rotatably attached to one end of the second connecting plate 19 with a support shaft 20, and one end of the second connecting plate 5 is freely rotatably attached with a pivot 21 to the movable member 18, which is located diagonally below the support shaft 20. On the other hand, an elastic engagement piece 11 is formed of an elastic plate material and has a pressing circular portion 9 in its front half.
1 is inserted into the above-mentioned gap 15, and the rear end of the elastic retaining piece 11 is loosely interposed between the gaps 15 and the shaft 1 is attached to the mounting member 12.
The pressing circular portion 9 of the elastic engagement piece 11 is rotatably pivoted at 7.
is facing above the rear end of the second connecting plate 5, the movable member 18 is fully opened, and a line connecting the attachment part of the shaft 13 at the rear end of the first connecting plate 4 and the pivot shaft 21 at one end of the second connecting plate 5 is drawn. The support shaft 20 at the front end of the first series connecting plate 4 is shifted inward of the extension line of A, and the pivot 21 at one end of the second connecting plate 5 interlocking with the first series connecting plate 4 moves toward the support shaft 20.
When the second connecting plate 5 moves upward,
A hidden hinge device in which the front end of the pressing circular portion 9 of the elastic engagement piece 11 whose upper surface is in contact with the inner surface of the upper plate portion 14 of the mounting member 12 comes into elastic contact with the upper surface of the rear end of the second connecting plate 5.