KR100797431B1 - Secret hinge with automatic closing - Google Patents

Abstract

It provides a hidden hinge with automatic close function.

Extending face symmetrically from the first and second cylindrical members about the imaginary center plane including the automatic closing device 12 and the central axes of the first and second cylindrical members 14, 16 of the automatic closing device. A pair of first rings (18, 20), a pair of slides (26, 28) rotatably connected to the first ring, and a pair of supports (30, 32) slidably engaged with the slides. And a second ring 22, 24 which is opposite to the virtual center plane with respect to the first ring to the first and second cylindrical members, a first end that is rotatably connected to the second ring, and the support member. A pair of third rings 38 and 40 having a second stage connected to each other, and the third ring and the slide are connected to each other so that the first ring is moved in a direction away from each other. A direction in which the support which is slidingly engaged to the slide is relatively far from the first ring It has a displacement mechanism for displacement stand.

Description

Hidden hinge with auto close function {SECRET HINGE WITH AUTOMATIC CLOSING}

Fig. 1 is a conceptual diagram when the hidden hinge having the automatic closing function according to the present invention set on the door and the door frame is viewed from above, and shows a state in which the door is closed.

2 shows a state in which the door starts to open in the hinge.

3 shows a state where the door is further opened in the hinge.

Fig. 4 shows a state in which the door is rotated 180 degrees and fully opened in the hinge.

Fig. 5 is a left side view of the hinge in the state of Fig. 4.

Fig. 6 is a conceptual diagram when the hidden hinge having the automatic closing function according to another embodiment of the present invention is viewed from above, showing a state in which the door is closed.

7 shows a state in which the door starts to open in the hinge.

Fig. 8 shows a state in which the door is opened approximately 90 degrees in the hinge.

Fig. 9 shows a state in which the door is almost completely open in the hinge.

Explanation of the sign

D door

F door frame

P1 to P8 rotary pins

P9, P10 Cam Follower Pin (Follower)

10 hidden hinge

12 automatic closing device

14, 16 first and second cylindrical members

18, 20 first link

22, 24 2nd Link

26, 28 slides

28a, 28b, 26a, 26b wall

26c, 28c elongated hole

30, 32 support

34, 36 eccentric disks

38, 40 3rd Link

42 hidden hinge

44, 46 cam contour curve

[Patent Document 1] Hei 2-240384

[Patent Document 2] Hei 6-288139

TECHNICAL FIELD The present invention relates to a hidden hinge of a door, and more particularly, to a hidden hinge having an automatic closing function for automatically restoring to a closed state when the door is opened.

The hidden hinge is set to a state not visible from the outside in the state where the door is closed. That is, the hinge has a link mechanism which is provided on the door side and the door frame side to form a pair, and both link mechanisms are connected to each other by a common rotating pin (to define the rotation center axis of the door), In the state in which the door is closed, these link mechanisms are accommodated in the recesses of the cross section where the door and the door frame are adjacent to each other. (Patent Documents 1 and 2)

In such a hidden hinge, the said common rotary pin is rotatably supported by the other end of the link whose one end was rotationally supported by the rotating pin which became the fixed position in each link mechanism, and the door frame side link mechanism is opened and closed. The circular arc around the rotary pin to the fixed position in the movement is to move.

The automatic closing device commonly used in cylindrical hinges, not hidden hinges, is used in the interior of a pair of cylindrical members coaxial with respect to the rotational center axis of the door, which is set at an outer position of an adjacent cross section of the door and the door frame. With the coil spring and opening the door, relative rotation occurs between the cylindrical members, whereby a restoring force is generated in the coil spring, whereby the door is automatically closed.

When the automatic closing device is set to the above-described hidden hinge, the automatic closing device is formed along the axis of the common rotating pin between the link mechanisms described above, but the automatic closing device has a common rotation. Since a cylindrical member having a diameter larger than that of a pin is provided, it interferes with the door frame at the time of opening and closing of a door, and it becomes easy to open and close. In order to eliminate this, the size of the hinge must be increased, and generally, the automatic closing device is not attached to the hidden hinge.

In view of this point, an object of the present invention is to provide a hidden hinge having an automatic closing function.

Means to solve the problem

That is, the present invention,

First and second rotating members 14 and 16, which are rotatable with each other about the same axis (refer to reference numeral 12a in the embodiments to be described below),

A pair of first links 18 and 20 formed in surface symmetry with respect to the first and second rotating members 14 and 16 about the imaginary center plane including the axis 12a;

A pair of slides 28, 26 rotatably connected to the first link 18, 20,

A pair slidably engaged with the slides 28, 26 and relatively close to or away from the first link 18, 20 to which the slide is rotationally connected by sliding relative to the slide. With supports 30 and 32,

A pair of second links 22 and 24 formed in the first and second rotating members in a plane symmetry with respect to the virtual center plane, respectively, the first links of the first and second rotating members respectively formed. A pair of second links 22, 24 formed at positions opposite to the virtual center plane with respect to

The first and second rotating members 14, 16 are rotated relatively around the axis 12a so as to move the pair of first links 18, 20 in a direction away from each other, thereby generating a restoring force. Restoring members which serve to return the first and second rotational rotating members 14, 16 to their original positions,

When the first and second rotating members 14, 16 are rotated relatively around the axis 12a such that the pair of first links 18, 20 are moved in a direction away from each other, the angle The slide in which the second links 22 and 24 are rotationally connected to the first links 20 and 18 formed on the rotating members 16 and 14 on the side where the respective second links are not formed ( 28, 26 in a direction away from the first links 20, 18 which are rotationally connected to the slides 28, 26 which are in sliding engagement with the support. Hidden with an automatic closing function characterized in that it has a pair of cam mechanisms (28a, 26a, 34, 36; 44, 46, P9, P10) formed corresponding to each second link, which slide in relation to the slide in Provide a hinge.

In this hinge, the support is set and used in the recess formed in the adjacent cross section of the door and the door frame which supports the door, and it opens and uses a pair (a pair which accommodates the coil spring mentioned above). The first and second rotations so that the slides 28, 26 supporting the first and second rotating members are pushed out of the support (therefore the door or door frame that houses them). The member is rotated while being displaced outwardly with respect to the door or the door frame by the movement of the slides 28 and 26, making it difficult to cause interference of the door or the door frame.

Each cam mechanism is specifically provided in the follower P9, P10 formed in each 2nd link, and each support member 30, 32, and the 1st and 2nd rotation members 14, 16 are When rotated relatively, it has cam contour curves 44, 46 which are slidably engaged by its followers of the second link,

Each of the second links 22 and 24 is rotationally connected to the first links 20 and 18 formed on the rotating members 16 and 14 on the side not formed on the second link. The slides 28, 26 are rotated with respect to the supports 32, 34 when they are rotationally connected to the 28, 26, and the followers P9, P10 formed in the second link are moved along the cam contour curve. It can be made to slide relatively.

Each cam mechanism further includes a third link (38, 40) having a first end rotationally connected to the second links (22, 24), and a second end rotationally connected to the support member;

The first and second rotational members (1, 2, 4) and the slides 28, 26 are connected to each other so that the pair of first links 18, 20 are moved in a direction away from each other. When the 14, 16 are rotated relatively around the axis 12a, the first rotationally connected to the slides 28, 26 the support 32, 30 slidingly engaged to the slide. Cam means 28a, 26a, 34, 36 for displacing in a direction relatively away from link 20, 18

You can also have

More specifically, each cam means

It is provided with the cam members 34 and 36 which are slidably engaged with each slide 28 and 26, and are moved according to the movement of the 3rd links 38 and 40, The cam members 34 and 36 are It is possible to change the movement of the third link 38, 40 to the movement of the slide 28, 26.

In this embodiment, in one embodiment, the cam members 34 and 36 are centered on the rotational axis of the rotational joint with the support members 32 and 30 of the third link 38 and 40. An eccentric disk that rotates with the third link 38, 40,

The slides 28, 26 have a cam driven wall 28a, 26a which slidably engages the circumferential edge of the eccentric disk and converts rotation of the eccentric disk into sliding on the support of the slide. It can be done.

Implement the invention  Best form for

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the hidden hinge which has the automatic closing function which concerns on this invention is described based on an accompanying drawing.

1 to 4 are views of a hidden hinge 10 having an automatic closing function according to the present invention mounted between the door D and the door frame F, seen from the upper side of the door, and FIG. 4 is a left side view of the hidden hinge 10 having the automatic closing function in the state of 4. FIG.

The hinge 10 has an automatic closing device 12. As shown in FIG. 5, the automatic closing device 12 is formed in the interior of the cylindrical member and the first and second cylindrical members 14 and 16 overlapping up and down coaxially, and the relative relative of the cylindrical member. It has a coil spring (not shown) which generates a restoring force upon rotation. Since this kind of automatic closing device is widely known, description of a specific structure is omitted.

The first and second cylindrical members 14 and 16 have a virtual center plane (the plane extending through the rotation center axis and extending in the downward direction in FIG. 1) including the rotation center axis thereof. A pair of first links 18, 20 are formed extending from the first and second cylindrical members face-to-symmetrically from side to side, and further from the first and second cylindrical members each formed a first link 18. , 20) is provided with a pair of second links 22, 24 extending face symmetrically with each other from positions opposite to the virtual center plane.

The slides 28 and 26 are rotationally connected to each 1st link 18 and 20 by the rotation pin P1 and P2. The slides 28 and 26 are slidably mounted (in the left-right direction as seen in FIG. 1) on the supports 30 and 32 which are fixedly fixed to the recesses formed in the cross sections adjacent to each other. As can be seen from FIGS. 2 to 4, the supports 30 and 32 are relatively near or far relative to the first links 18 and 20 to which the slides 28 and 26 each of which are supported are rotationally connected. It is meant to be built.

One end of the third link 38, 40 is rotatably connected to the second link 22, 24 by the rotation pins P3, P4, and the other end of the third link 38, 40 is a support. It is fixed to the rotary pins P5 and P6 that are made rotatable in the illustrated positions of 30 and 32. That is, the 3rd links 38 and 40 are rotatable with respect to the support bodies 32 and 30 about the rotating pins P5 and P6.

Eccentric disks 34 and 36 as cam members are fixed to the rotary pins P5 and P6, and the eccentric disks are the walls 28a and 28b of the slides 28 and 26 on both left and right sides as seen in FIG. Slidably fitted between the shafts 26a and 26b, and the eccentric disks 34 and 36 together with the third links 38 and 40 are rotated about the rotation center axis of the rotary pins P5 and P6, the slide ( 28 and 26 are displaced to the left and right sides, respectively, as shown in FIG. 1 by the rotation of the eccentric disks 34 and 36.

As shown in FIG. 5, the link mechanism described below is formed above and below the automatic closing device 12. In addition, the slides 28 and 26 are rectangular parallelepiped as a whole, and as shown from FIG. 5, the part provided with the surface 26a, 26b, 28a, 28b which pinches the eccentric disk 34, 36 between them. And the part provided with the elongate hole 26c, 28c superimposed on it, and passing through the rotation pins P5 and P6.

Next, the operation of the hidden hinge with the automatic closing function will be described.

FIG. 1 is in the state which closed the door D, and FIG. 4 has shown the state in which the door D rotated 180 degrees and opened.

When the door D is opened from the state of FIG. 1 toward the state of FIG. 4, the cylindrical member 14 of the automatic closing device 12 has a periphery around the rotational center axis 12a relative to the cylindrical member 16. Start the rotation. As a result, the second link 22 on the door frame side starts to rotate in the counterclockwise direction about the central axis 12a, and the third link 38 is rotatably mounted to the support 32. Rotate around pin P5. Since the rotation pin P5 is fixed to the 3rd link 38, the eccentric disk 34 fixed to the rotation pin P5 similarly rotates counterclockwise around the rotation pin P5. .

When the eccentric disk 34 is in the position of FIG. 1, the circumferential edge farthest from the rotation center axis of the rotation pin P5 is set at a position vertically upward (see FIG. 1) from the rotation center axis. . Therefore, when the eccentric disk 34 is rotated counterclockwise, the eccentric disk 34 presses the wall 28a of the slide 28 to the left and displaces the slide 28 to the left. Therefore, the automatic closing device 12 rotates about the rotary pin P2 and is displaced so as to move away from the door frame F to the left. Along with this, the same operation also occurs in the first to third links, slides, and the like on the door D side.

Thus, since the automatic closing device 12 moves away from the end faces of the door D and the door frame F when the door D is opened, the rotary pin P1, like the conventional hidden hinge, is moved. In the case where P2) is fixed to the door and the door frame, even if the configuration interferes with the door D or the door frame F, the door can be opened without interfering with the door and the door frame.

In the open state of FIG. 4, the coil spring of the automatic closing device stores the restoring force, and when the door is opened, the restoring force returns to the state of FIG. 1. The movement of the link mechanism at this time is reversed from the above.

6-9, another embodiment of the hidden hinge which has the automatic closing function which concerns on this invention is shown. The main components of this hidden hinge are the same as those shown in Figs. 1 to 5, and therefore the same elements are denoted with the same reference numerals.

As shown, this concealed hinge 42 has a first link 18, 20 and a second link 22, 24 formed in the first and second cylindrical members 14, 16 of the automatic closing device 12. ) Is formed. The slides 28 and 26 are rotationally connected to each 1st link 18 and 20 by the rotation pin P1 and P2. The slides 28 and 26 are slidably mounted (in the left and right directions as seen in FIG. 6) to the supports 30 and 32 which are fixedly fixed to the recesses formed in the cross sections adjacent to each other.

In this concealed hinge 42, there is no third link, and the tips of the second links 22 and 24 having a shape bent almost to the center portion are connected to the slides 28 and 26 by the rotary pins P7 and P8. Rotated connection Cam driven pins (cam followers; P9, P10) are formed at the bent portions of the second links 22, 24, and the cam driven pins P9, P10 have a cam profile formed on the supports 30, 32. Sliding engagement with a curved portion (specifically grooves 44 and 46) is achieved.

6 to 9, when the door D opens from the closed state of FIG. 6, the cam follower pins P9 and P10 move along the cam contour curves 44 and 46, and the rotation pin P7. , P8 are respectively displaced in a direction closer to the first links 18, 20, and thus the slides 28, 26; therefore, the first links 18, 20, which are rotationally connected to them, respectively, It is displaced so as to be pushed out from 30 and 32. Therefore, the automatic closing device 12 can open a door without interfering with the edge of a door frame similarly to the above-mentioned embodiment.

As mentioned above, although embodiment of the hidden hinge which concerns on this invention was shown, this invention is not limited to these. For example, the automatic closing device 12 is not limited to the one by the same coil spring as mentioned above, and various things, such as using a fluid, can be used, for example.

In the hidden hinge with the automatic closing function according to the present invention, when the door is opened, the first and second rotating members are displaced in a direction away from the door or the door frame, so that interference with the door or the door frame is prevented. Can be made difficult to be generated, and the door and the door frame having the same cross-sectional size as in the prior art can be set.

Claims (5)

First and second rotating members that are rotatable with each other around the same axis, A pair of first links formed symmetrically with each other on the first and second rotating members about an imaginary center plane including the axis; A pair of slides rotatably connected to the first link, A pair of supports slidably engaged with the slide and relatively close to or away from the first link to which the slide is rotationally connected by sliding relative to the slide; A pair of second links formed on the first and second rotating members in plane symmetry with respect to the virtual center plane, with respect to the first links of the first and second rotating members respectively formed; A pair of second links formed at positions opposite to the virtual center plane, The first and second rotating members are rotated relatively around the axis to cause the pair of first links to move in a direction away from each other, thereby generating a restoring force and returning the first and second rotating members to the original. A restoring member that serves to return the position, When the first and second rotational members are rotated relatively around the axis 12a such that the pair of first links are moved in a direction away from each other, the respective second links are each the second. The slide which is slidably engaged with the support, the support being slidably engaged with the slide rotationally connected to the first link formed on the first and second rotating members on the side where the link is not formed. A pair of cam mechanisms formed corresponding to each of the second links to slide relative to the slide in a direction away from the first link rotationally connected to the second link; Hidden hinge with an automatic closing function, characterized in that having a. The method of claim 1, When each said cam mechanism is formed in the follower formed in each said 2nd link, and each said support body, and the said 1st and 2nd rotating member rotates relatively, it is slid by the follower of the said 2nd link. With cam contour curves to be fitted, Each said 2nd link is rotationally connected to the said slide which is rotationally connected to the said 1st link formed in the said 1st and 2nd rotating members of the side which is not formed in the said 2nd link, and the said cam contour curve And accordingly, a hidden hinge having an automatic closing function adapted to slide the slide relative to the support when the follower formed in the second link is moved. The method of claim 1, Each cam mechanism, A third link (38, 40) having a first end rotatably connected to the second links (22, 24), and a second end rotatably connected to the support; When the first and second rotating members are relatively rotated around the axis so as to connect the third link and the slide so that the pair of first links move in a direction away from each other, the slide slides on the slide. And a cam means for displacing the fitted support in a direction relatively away from the first link that is rotationally connected to the slide. The method of claim 3, wherein Each cam means, And a cam member slidingly engaged with the slide and moved according to the movement of the third link, wherein the cam member changes the movement of the third link to the movement of the slide. Hidden hinge with auto close function. The method of claim 4, wherein The cam member is an eccentric disk which rotates together with the third link about the rotation axis of the rotational joint of the support member of the third link, The slide has a cam follower wall that slidably engages a circumferential edge of the eccentric disk and converts rotation of the eccentric disk into sliding on the support of the slide. Hidden hinge.

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