KR20130015909A

KR20130015909A - Door mounting structure

Info

Publication number: KR20130015909A
Application number: KR1020110078244A
Authority: KR
Inventors: 이영만
Original assignee: (주)삼우
Priority date: 2011-08-05
Filing date: 2011-08-05
Publication date: 2013-02-14

Abstract

PURPOSE: A door mounting structure is provided to prevent the impact and the noise by closing of a damper, to include opening and closing member, and to automatically open and close the door. CONSTITUTION: The door mounting structure comprises a fixing hinge piece(100), a movable hinge piece(200), a hinge shaft(300), an opening and closing member(400), and a damper(D). The fixing hinge piece is mounted in order to be fixed to the door frame. The movable hinge piece is mounted at the door which is opened and closed by rotating, and is combined with the fixing hinge piece. The hinge shaft connects the fixing hinge piece and the movable hinge piece and becomes the center of rotation of the door. The opening and closing member automatically compels opening and closing of the door. The damper is mounted in the fixing hinge piece or the movable hinge piece, provides a damping force when the door closes, and reduces the rotating speed of the door.

Description

Door mounting structure

The present invention relates to a door installation structure, and to a door installation structure in which the automatic opening and closing function of the door and the rotation speed reduction function of the door are provided at the hinge.

In general, at least one hinge having a hinge function is provided at an upper / lower side of the door to serve as a rotating shaft so that the door is closed or opened by rotation. That is, a plurality of door hinges, called hinges, are provided on the revolving door provided in the furniture or the entrance door to guide opening and closing of the door.

However, the hinges of these doors generally serve only as the center of rotation. In other words, the door is to rotate the door hinge (hinges) to the axis, the rotation of the door is made manually by understanding the human force.

Of course, there is also a configuration to open and close the door automatically. That is, there is a configuration in which a separate cylinder is installed at the top or bottom of the door to automatically close the door.

However, such an automatic opening and closing function of the rotating door controls the closing of the entire door, and therefore, when a human wants to close the door by force, an external force exceeding the force of the cylinder must be applied from the beginning.

In addition, since such a cylinder and the like must be separately installed, the apparatus becomes large and there is a problem in that the installation cost is excessive.

In addition, a separate damper may be installed at the upper end of the door frame to alleviate the impact when the door is closed. However, even in this case, a space for installing a separate damper is required, and there is a problem in that the door must be mounted in consideration of the installation position of the damper.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to include a damper for reducing the rotational speed of the door in the hinge portion of the door.

In addition, another object of the present invention is to provide an opening and closing member for automatically opening and closing the door is provided in the hinge portion of the door.

According to a feature of the present invention for achieving the above object, the door installation structure according to the present invention includes a fixed hinge piece fixedly mounted to the door frame; A floating hinge piece mounted on the door opened and closed by rotation and coupled to the fixed hinge piece; A hinge shaft which connects the fixed hinge piece and the floating hinge piece to each other and serves as a rotation center of the door; It is provided in the fixed hinge piece or the flow hinge piece, and has a configuration including a damper for providing a damping force when the door is closed to reduce the rotational speed of the door; The damper is characterized in that the rod is formed so as to protrude through the fixed hinge piece or the flow hinge piece, the contact with the floating hinge piece or the fixed hinge piece located on the opposite side when the door is closed.

The fixed hinge piece or the floating hinge piece, characterized in that the one end is fixedly fixed to the fixed hinge piece or the floating hinge piece, further comprising an opening and closing member for forcing the automatic opening and closing of the door.

The damper may include a cylinder having a space filled with a fluid and having one opening therein; A piston provided inside the cylinder and slidingly flowing; A deformable member provided at one end of the cylinder to shield an open end of the cylinder, the deformable member capable of increasing or decreasing a volume thereof therein; An orifice formed in the cylinder or piston and guiding fluid to flow into or out of the cylinder; And a return member provided inside the cylinder to apply a force in one direction to return the piston to its original position.

The deformable member has a zabara structure whose shape can be changed according to the size of the inner space; The orifice is characterized in that the size of the cross-sectional area gradually increases or decreases toward one side.

The fixed hinge piece and the flow hinge piece are formed in a shape corresponding to each other, and a fixed coupling part and a fluid coupling part are respectively accommodated in the hinge shaft; The fixed coupling portion and the flow coupling portion, characterized in that the installation groove is mounted to one end of the opening and closing member, and the flow groove is selectively accommodated to the other end of the opening and closing member, respectively.

The door installation structure according to the present invention has the following effects.

In the present invention, a bellows type damper is built in the hinge portion of the door. That is, a damper is built in the hinge piece of the door or the door frame, and the rod of the damper protrudes outward. Therefore, when the door is closed, the rod contacts the opposite hinge piece and the damper is operated, thereby reducing the closing speed of the door.

As described above, in the present invention, since the damper is built in the hinge portion of the door, the shock and noise due to the closing of the damper are prevented, while the installation is simple and the appearance is beautiful.

In addition, in the present invention, an opening and closing member is provided in addition to the existing hinge configuration, and the opening and closing member is embedded in the hinge. Therefore, there is no need for a separate installation space, there is an advantage that the automatic opening and closing function is added only by the existing hinge space.

In addition, in the present invention, the timing at which the elastic force of the opening and closing member is applied can be arbitrarily adjusted according to the designer's intention. That is, it is possible to arbitrarily adjust the time when the automatic opening and closing of the door by adjusting the formation position of the flow groove. Therefore, the door is freely rotated initially, so that the automatic opening and closing function can be operated immediately before the door is completely closed or opened, thereby improving convenience of use.

1 is an exploded perspective view showing the configuration of a preferred embodiment of the door installation structure according to the present invention.
Figure 2 is a perspective view showing the configuration of the opening and closing member constituting the embodiment of the present invention.
Figure 3 is a perspective view showing a state in which the opening and closing member constituting the embodiment of the present invention is installed on the fixed coupling portion.
Figure 4 is a perspective view showing a state in which the opening and closing member constituting the embodiment of the present invention accommodated in the installation groove.
5 is a cross-sectional view showing the configuration of a preferred embodiment of a damper constituting an embodiment of the present invention.
6 is a cross-sectional view showing an operating state of the damper constituting the embodiment 2 of the present invention.
7 and 8 is a use state showing the state that the opening and closing member constituting the embodiment of the present invention in and out of the installation groove.
9 and 10 are state diagrams for explaining the operating state of the opening and closing member and the damper constituting an embodiment of the present invention.
11 is a state diagram for explaining another installation state of a damper constituting an embodiment of the present invention.
12 is a partial cross-sectional view showing in detail the installation state of the damper shown in FIG.

Hereinafter, a preferred embodiment of the door installation structure according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show one embodiment of the door mounting structure according to the present invention. That is, Figure 1 is an exploded perspective view of the door installation structure according to the present invention, Figure 2 is a perspective view showing the configuration of the opening and closing member constituting the embodiment of the present invention, Figure 3 is an embodiment of the present invention The perspective view showing the state in which the opening and closing member is installed in the fixed coupling portion is shown. And, Figure 4 is a perspective view showing a state in which the opening and closing member constituting the embodiment of the present invention accommodated in the installation groove.

As shown in these figures, the door installation structure, the fixed hinge piece 100 is fixedly mounted to the door frame, and the floating hinge piece 200 is mounted to the door that is opened and closed by rotation coupled with the fixed hinge piece 100 ), The hinge shaft 300 as the rotation center of the door, the opening / closing member 400 forcing the automatic opening and closing of the door, and a damping force when the door is closed to reduce the rotation speed of the door. Damper (D) or the like.

The fixed hinge piece 100, as shown, is made of a flat plate shape having a predetermined thickness, this fixed hinge piece 100 is mounted on the wall of the building or the body of the furniture. That is, it is installed in the door frame to which a door is mounted.

Although not shown, a plurality of holes are formed in the fixed hinge piece 100 to allow the fixed hinge piece 100 to be mounted by bolts on a building or furniture.

The flow hinge piece 200 has a shape corresponding to the fixed hinge piece 100. That is, the flow hinge piece 200 is also made of a flat plate having a thickness of a predetermined size as the fixed hinge piece 100, and a plurality of holes for penetrating the bolt may also be formed therethrough.

On the other hand, as shown in the fixed hinge piece 100 and the flow hinge piece 200, the fixed coupling portion 110 and the fluid coupling portion 210 having a shape corresponding to each other are formed. In addition, the hinge shaft 300 is accommodated inside the fixed coupling part 110 and the fluid coupling part 210.

In detail, at the right end of the fixed hinge piece 100, two fixed coupling parts 110 are formed to protrude to the right at a predetermined interval up and down. The fixed coupling portion 110 is formed in a cylindrical shape, as shown, the hinge shaft 300 is installed to pass through.

Therefore, the shaft hole (H) penetrating up and down is formed in the center of the fixed coupling portion 110, so that the hinge shaft 300 can be penetrated.

At the left end of the flow hinge piece 200, two flow coupling portions 210 are formed to protrude to the left at a predetermined interval up and down. The flow hinge piece 200 has a cylindrical shape corresponding to the fixed hinge piece 100, the shaft hole (H) through which the hinge shaft 300 is formed.

As shown in the drawing, the flow hinge piece 200 is formed to be offset from the fixed hinge piece 100. Therefore, the flow hinge piece 200 is positioned between the pair of fixed hinge pieces 100 formed at predetermined intervals up and down, and penetrates the flow hinge piece 200 and the fixed hinge piece 100 up and down. The hinge shaft 300 is inserted into the installation.

The fixed coupling part 110 and the fluid coupling part 210, the installation groove 120 is mounted one end of the opening and closing member 400, and the flow groove is selectively accommodated the other end of the opening and closing member 400 220 are each formed. Here, the installation groove 120 is formed in the fixed coupling portion 110, the flow groove 220 is shown in the flow coupling portion 210 is shown.

The installation groove 120 is a portion in which the upper end of the opening and closing member 400 is mounted, and is formed to be recessed upward from the lower end of the fixed coupling part 110. That is, a part of the lower end of the fixed coupling part 110 is cut to form an installation groove 120, and the upper end of the opening / closing member 400 is fitted thereto and coupled thereto.

Of course, the upper end of the opening and closing member 400 is to be more firmly coupled to the fixed coupling portion 110, it may use a separate adhesive or welding or the like.

More specifically, the installation groove 120 may include a fixing part 122 in which one end of the opening and closing member 400 is fixedly installed, and an accommodation part 124 in which the other end of the opening and closing member 400 is selectively accommodated. ) And a bent portion 126 for guiding the bending of the opening / closing member 400.

The fixing part 122 is formed at the upper end of the installation groove 120, and the upper end of the opening / closing member 400 is coupled by an interference fit or the like. Therefore, it is preferable that the fixing part 122 has a shape corresponding to the fixing end 410 of the opening and closing member 400 to be described below.

The receiving portion 124, as shown, the lower end of the fixed coupling portion 110 is cut, here the lower end of the opening and closing member 400 is accommodated. That is, when the upper end of the opening and closing member 400 is mounted fixed to the fixing part 122, the guide protrusion 420 of the opening and closing member 400 to be described below is on the top of the fluid coupling portion 210 It is pushed and placed in the receiving portion 124.

The bent part 126 is provided between the fixing part 122 and the receiving part 124. That is, the bent portion 126 has a '(' shape, as shown in the figure. That is, formed to protrude round to the left, when the lower end of the opening and closing member 400 is bent by the fluid coupling portion 210 The opening and closing member 400 is guided to bend more smoothly.

The flow groove 220, when formed on the top of the flow coupling portion 210, is formed to be recessed downward. That is, the upper end of the flow coupling part 210 is partially cut to form the flow groove 220, and the lower end of the opening and closing member 400 flows into the flow groove 220.

In addition, the flow groove 220, the guide jaw 222 is formed to protrude round inward to the inlet to guide the entry and exit of the guide protrusion 420 to be described below smoothly, and the guide jaw 222 Recessed in the opposite direction to the guide portion 224 to facilitate the contact of the guide protrusion 420 is further formed, respectively.

Looking more specifically, the guide jaw 222 is formed on the left side of the upper end of the flow groove 220 to protrude round to the right. The guide jaw 222 smoothly guides the lower end of the guide protrusion 420 to be introduced into the flow groove 220 to be described below, and at the same time, the lower end of the guide protrusion 420 is the flow groove 220. ) Will guide you to move away smoothly.

Then, the lower side of the guide jaw 222 is recessed round to the left again to form the guide portion 224. The guide portion 224, when the lower end of the opening and closing member 400 is introduced into the flow groove 220, the guide protrusion 420 to be described below will be guided to slide flexibly. Therefore, the curvature of the guide portion 224 is preferably formed to be round to correspond to the curvature of the guide protrusion 420 to be described below.

The opening and closing member 400 is forced to the flow hinge piece 200 by its elasticity. Therefore, the opening and closing member 400 is made of a spring having a force to return to its original shape by its elastic deformation. That is, it is preferably made of a plate spring (plate spring) or the like. A plate spring refers to a plate-shaped spring, and a spring steel is mainly used as a material.

The opening and closing member 400, as shown (see Figure 2), has a 'I' shape having a predetermined thickness. And, on the upper end of the opening and closing member 400, a fixed end 410 fixedly mounted to the fixed portion 122 is formed.

The fixed end 410, as shown, is formed to be bent from the top of the opening and closing member 400 to the right, this fixed end 410 corresponds to the fixing portion 122 of the installation groove 120 It is preferably made of a shape, coupled to the fixing portion 122 by interference fit.

At the lower end of the opening and closing member 400, a guide protrusion 420 inserted into the flow groove 220 is further formed. That is, a guide protrusion 420 protruding to the left side is formed at a lower end of the opening / closing member 400, and the guide protrusion 420 has a rounded curvature to facilitate entry and exit into the flow groove 220. Is formed. That is, it has a dome shape protruding to the left.

Accordingly, when the guide protrusion 420 slides through the guide jaw 222 and the guide part 224 in order to flow into the flow groove 220, the elastic force of the opening and closing member 400 is coupled to the flow coupling part. (210) is going crazy.

The hinge shaft 300 serves as a rotation center of the door, and connects the fixed hinge piece 100 and the floating hinge piece 200 to each other. Therefore, the hinge shaft 300 is made of a pin (pin) having a predetermined length, as shown in the shaft hole (H) formed through the fixed coupling portion 110 and the fluid coupling portion 210 Insert is installed.

On the other hand, a cylindrical damper hole 202 is formed through the flow hinge piece 200. The damper D is installed at the rear side of the damper hole 202.

As shown in the damper (D), a rod 560 to be described below is formed to protrude forward through the flow hinge piece (200). Therefore, the rod 560 is in direct contact with the fixed hinge piece 100 located on the opposite side when the door is closed.

In FIG. 5 an embodiment of the damper D is shown in cross section.

As shown in the drawing, the damper (D) includes a cylinder (500) having a space filled with a fluid therein, a piston (510) sliding and flowing inside the cylinder (500), and the cylinder. Deformation member 520 provided at one end of the 500 to shield the open end of the cylinder 500, and a flow hole formed through the piston 510 to guide the fluid to flow through the piston 510 530, an opening and closing hole 540 for selectively opening and closing the flow hole 530, an opening and closing member 550 forcing a force so that the opening and closing hole 540 shields the flow hole 530, and the cylinder ( It is provided on the inside of the 500 is composed of a return member 580 and the like to apply a force in one direction so that the piston 510 is returned to its original position.

The cylinder 500, as shown, is formed in a cylindrical shape with an upper opening, a space in which the fluid is filled is formed therein. That is, the cylinder 500, the upper portion is opened, the inner space 502 of a predetermined size for receiving the fluid is formed therein.

The piston 510 is provided inside the cylinder 500 and slides up and down along the inner surface of the cylinder 500. Therefore, the piston 510 is formed in a circular shape to have an outer surface corresponding to the inner surface of the cylinder 500.

The rod 560 is connected to the upper side of the piston 510. The rod 560 is generally called a 'cylinder rod' and has a thin round rod shape.

Therefore, the fastening end 512 into which the lower end of the rod 560 is inserted and fixed is formed at the center of the upper surface of the piston 510 so as to protrude upward.

In addition, a ring-shaped support jaw 514 is formed inside the lower end of the piston 510 to protrude inward. The support jaw 514 is a portion in which an upper end of the return member 580 is in contact with and supported.

The deformable member 520 is provided on the upper end of the cylinder 500, shields the opened upper portion of the cylinder 500, and has a structure that allows the internal volume size to increase and decrease.

In more detail, the deforming member 520 has a corrugated structure having a plurality of layers. That is, the deformable member 520 is made of a so-called 'Zabara structure' which can be changed in shape according to the size of the inner space.

The deformable member 520 is made of a flexible and flexible material such as rubber. Therefore, the volume of the outer space 522 provided therein can be freely changed.

Specifically, the deforming member 520 is made of a material that can be freely deformed in response to a change in the internal volume. Therefore, even when the piston 510 is lowered to the inside and the volume of the inside increases as the rod 560 flows in, as shown in FIG. 6, since the deformation member 520 increases the internal volume change. As in the prior art, the volume compensation material becomes unnecessary.

An insertion hole 524 is formed through the center portion of the upper surface of the deforming member 520. The insertion hole 524 is a hole in which the rod 560 is slidably inserted.

The edge of the deforming member 520 forming the insertion hole 524 is in close contact with the outer surface of the rod 560. That is, as shown, it is formed so as to be in close contact with the outer surface of the rod 560 in two times by sliding the outer surface of the rod 560, the oil flows out through the gap between the deformation member 520 and the rod 560 Will be prevented. Therefore, a separate oil seal for preventing oil leakage as in the prior art is unnecessary.

A flow hole 530 is formed through the piston 510. The flow hole 530 guides the fluid to flow inside and outside the cylinder 500.

The cross-sectional area of the flow hole 530 preferably has a size larger than the cross-sectional area of the orifice 570 to be described below. In this way, the flow hole 530 is provided, and the size of the flow hole 530 is larger than the cross-sectional area of the orifice 570, when the piston 510 is lowered back to the upper direction again This is to reduce the return resistance.

The opening and closing hole 540 selectively shields the flow hole 530. That is, the opening and closing hole 540 is made of a sphere (sphere) as shown, and is formed to have a diameter larger than the inner diameter of the flow hole 530, the flow hole 530 selectively at the lower side To shield.

The opening and closing member 550 is provided below the piston 510 and is integrally formed with the piston 510 or provided separately.

The opening and closing member 550 forces the opening and closing hole 540 to shield the flow hole 530. That is, the opening and closing port 540 is pushed upward with a predetermined force.

Specifically, the opening and closing member 550 is made of an elastic material, and is configured to push the opening and closing hole 540 upward by its own elastic force. That is, as shown, the left end of the opening and closing member 550 is fixed to the piston 510, the opening and closing port 540 is in contact with the upper surface of the right end. Therefore, the opening and closing port 540 is pushed upward by the elastic force of the opening and closing member 550 to shield the flow hole 530.

An orifice 570 is further formed on one surface of the cylinder 500 to guide the fluid to flow inside or outside the cylinder 500. That is, as shown, the orifice 570 is formed on the inner surface of the cylinder 500 up and down, the orifice 570 is made of a groove of a predetermined size, which is a passage for guiding the flow of the fluid.

In addition, the orifice 570 is formed such that its size gradually increases or decreases toward one side. That is, the orifice 570 is formed to gradually reduce the size of the cross-sectional area toward the lower side.

The return member 580 is provided inside the cylinder 500. That is, as shown, a return member 580 is provided between the inner bottom surface of the cylinder 500 and the piston 510, the return member 580 is made of an elastic spring.

Therefore, since the piston 510 is always subjected to upward force by the return member 580, when no force is applied to the rod 560 from the upper side, the piston 510 is as shown in FIG. To be located at the upper end of the cylinder 500.

In addition, the upper end of the return member 580 is in contact with the support jaw 514 formed inside the piston 510.

Hereinafter, the operation of the door installation structure of the present invention having the above configuration will be described in detail with reference to FIGS. 4 to 10.

For convenience of explanation, the case where the door is closed will be described as an example. That is, the opening and closing member 400 constituting the present invention may be applied to both the automatic closing and the automatic opening of the door, but for the convenience of description, the automatic door closing will be described as an example.

First, when the door 20 is completely open, the opening and closing member 400 is accommodated in the installation groove 120 as shown in FIG. That is, at this time, the fixed end 410 of the opening and closing member 400 is fixed to the fixing part 122, the lower end of the opening and closing member 400 is bent by the flow coupling portion 210 'C Bent into shape. Thus, as shown, the guide protrusion 420 of the opening and closing member 400 is located in the receiving portion 124 of the installation groove 120.

When the door 20 is closed in this state, the flow hinge piece 200 integrally mounted to the door 20 rotates in the direction of an arrow (solid line in FIG. 4). Thus, the angle α between the door 20 and the furniture or wall surface 10 becomes smaller and smaller (see Fig. 9).

When the closing of the door 20 continues and becomes a set section, the flow groove 220 reaches the lower end of the opening and closing member 400 as shown in FIG. 7. For example, the angle α formed between the floating hinge piece 200 attached to the door 20 and the fixed hinge piece 100 attached to the furniture or the wall 10 is set to an angle already set such as 30 degrees or 15 degrees. If it has, the flow groove 220 and the installation groove 120 is overlapped with each other to automatically open and close the door 20 by the opening and closing member 400.

As shown in FIG. 7, when the lower end of the opening and closing member 400 starts to flow into the flow groove 220, the door 20 is automatically closed by the opening and closing member 400. That is, the guide protrusion 420 of the opening and closing member 400 is guided by the guide jaw 222 of the flow groove 220 to gradually slide into the guide portion 224.

Therefore, the opening and closing member 400 is rotated in the direction of the arrow (solid line in Figure 7) by the elastic force to return to the original, it is formed integrally with the fluid coupling portion 210 The flow hinge piece 200 rotates. In this case, the door 20 coupled to the floating hinge 200 is rotated, and from this time, the door 20 is automatically closed.

When the door 20 is completely closed, the lower half of the opening and closing member 400 enters the flow groove 220 as shown in FIG. 8. Of course, even at this time, the opening and closing member 400 is not completely returned to its original shape, it is preferable that some elastic force is maintained as it is.

After the door 20 is completely closed as described above, when the user opens the door 20, the opening and closing member 400 is returned to its original position by the reverse order.

Specifically, when the door 20 is opened in the state shown in FIG. 8, the flow coupling part 210 rotates in the direction of an arrow (dotted line in FIG. 8). Therefore, at this time, the lower end of the opening and closing member 400 accommodated in the flow groove 220 is pushed up to the guide jaw 222 of the flow coupling portion 210.

If this process continues, through the state as shown in Figure 7, the opening and closing member 400 is completely out of the flow groove 220, the state as shown in FIG. That is, the opening and closing member 400 enters the installation groove 120 and returns to its original shape.

On the other hand, when the door 20 is closed as described above, the damper (D) is operated to reduce the rotational speed of the door 20. That is, the automatic closing of the door 20 by the opening and closing member 400 in the state as shown in FIG. 9, and then attached to the floating hinge piece 200 and the furniture or the wall surface 10 attached to the door 20. When the angle formed by the fixed hinge piece 100 becomes smaller than 'α' and becomes 'β', the rod 560 is in contact with the fixed hinge piece 100 as shown in FIG. 10 to damp the damper D. Damping force acts.

As described above, the operation of the damper D will be described in detail with reference to FIGS. 5 and 6.

First, in the state as shown in FIG. 5, the opening and closing hole 540 blocks the flow hole 530 by the opening and closing member 550. Therefore, the flow of the fluid does not occur through the flow hole 530.

In this state, when an external force is applied to the rod 560 from the outside as shown by an arrow from above, the piston 510 is lowered downward. That is, the piston 510 slides downward while sliding flows inside the cylinder 500.

In this case, since the orifice 570 is open, the fluid in the inner space 502 moves upward through the orifice 570 to the outer space 522.

In addition, since the cross-sectional area of the orifice 570 decreases gradually toward the lower side, the amount of fluid flowing upward through the orifice 570 decreases as the piston 510 descends downward. Therefore, the speed at which the piston 510 moves downward gradually decreases, resulting in a damping effect.

6 shows a state in which the piston 510 is completely lowered through the above process.

In the state as shown in FIG. 6, when the door 20 is opened, the piston 510 moves upward again to return to its original shape. That is, at this time, since the force holding the rod 560 is lost, the piston 510 is moved upward by the elastic force of the return member 580.

That is, in the state as shown in FIG. 6, when an upward force is applied to the piston 510 by the return member 580, the piston 510 moves upward.

As such, when a force pushing the piston 510 upward by the return member 580 acts, pressure is applied to the fluid in the outer space 522. Therefore, the opening and closing port 540 is moved downward by the fluid pressure in the outer space 522, the flow hole 530 is opened. That is, when the pressure applied to the outer space 522 is greater than the elastic force of the opening and closing member 550, the right end of the opening and closing member 550 is pushed down as shown in Figure 6, the opening and closing port 540 The flow hole 530 blocked by) is opened.

As such, when the flow hole 530 is opened, the fluid in the outer space 522 moves to the inner space 502 through the flow hole 530. Thus, the piston 510 is raised upward.

When the piston 510 moves upward, the orifice 570 is gradually opened, and the fluid in the outer space 522 also flows into the inner space 502 through the orifice 570.

Through the above process, when the piston 510 is completely moved upward, the state as shown in FIG. 5 is returned to the original position.

As described above, when the door 20 is closed, the door 20 is automatically closed by the opening / closing member 400 first, followed by the closing speed of the door 20 by the damper D. Will be reduced.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

For example, in the above embodiment, the case in which the opening and closing member 400 is used for the automatic closing of the door 20 has been described as an example, but may be used for the automatic opening of the door 20.

In addition, in the above embodiment, the case where the opening and closing member 400 is installed in the fixed coupling part 110 has been described as an example, but the opening and closing member 400 is also installed in the fluid coupling part 210. It is possible. Of course, in this case, the installation groove 120 is formed in the flow coupling portion 210, the flow groove 220 will be formed in the fixed coupling portion (110).

In the above embodiment, the damper (D) is illustrated in the case where the flow hinge piece 200 is installed, but it is also possible to install the damper (D) in the fixed hinge piece (100). Of course, in this case, when the door 20 is closed, the rod 560 will be in contact with the flow hinge piece 200 of the base piece.

In addition, in the above embodiment, the configuration in which the rod 560 protrudes so as to penetrate the flow hinge piece 200 is taken as an example, but as shown in FIG. 11, the cylinder 500 moves the flow hinge piece 200. It may be possible to install the damper (D) upside down to protrude through. That is, the cylinder 500 of the damper (D) is formed to protrude through the fixed hinge piece 100 or the floating hinge piece 200, the cylinder 500 is located on the opposite side when the door 20 is closed It is also possible to install so as to contact the flow hinge piece 200 or the fixed hinge piece (100). Of course, at this time, as shown in Figure 12, mounted to the flow hinge piece 200 or fixed hinge piece 100, the cylindrical outer case 600 for supporting the damper (D) is further provided Should be.

10. Furniture / Wall 20. Door
100. Fixed hinge piece 110. Fixed coupling part
120. Mounting groove 200. Floating hinge piece
210. Flow coupling unit 220. Flow groove
300. Hinge shaft 400. Opening and closing member
500. Cylinder 510. Piston
520. Deformation member 530. Flow hole
540. Opening and closing ports 550. Opening and closing members
580. Return member 600. External cylinder
D. Damper

Claims

A fixed hinge piece 100 fixedly mounted to the door frame;
A floating hinge piece 200 mounted on the door 20 opened and closed by rotation and coupled to the fixed hinge piece 100;
A hinge shaft 300 which connects the fixed hinge piece 100 and the floating hinge piece 200 to each other and serves as a rotation center of the door 20;
It is provided on the fixed hinge piece 100 or the floating hinge piece 200, and provides a damping force (damping force) when the door 20 is closed includes a damper (D) for reducing the rotational speed of the door 20 To have a configuration;
In the damper (D),
The rod 560 or the cylinder 500 protrudes so as to penetrate the fixed hinge piece 100 or the floating hinge piece 200, so that the floating hinge piece 200 or the fixed piece is located on the opposite side when the door 20 is closed. Door installation structure, characterized in that in contact with the hinge piece (100).

The method of claim 1, wherein the fixed hinge piece 100 or the floating hinge piece 200,
One end fixedly fixed to the fixed hinge piece 100 or the floating hinge piece 200, the door installation structure, characterized in that the opening and closing member 400 for forcibly opening and closing the door 20 is further provided.

The method of claim 2, wherein the damper (D),
A space in which the fluid is filled and formed therein, the cylinder 500 having one opening;
A piston (510) provided inside the cylinder (500) for sliding flow;
A deformable member (520) provided at one end of the cylinder (500) to shield an open end of the cylinder (500), and to increase or decrease the volume therein;
An orifice (570) formed in the cylinder (500) or the piston (510) for guiding fluid to flow into or out of the cylinder (500);
And a return member (580) provided inside the cylinder (500) to apply a force in one direction such that the piston (510) is returned to its original position.

The method of claim 3, wherein the deforming member 520,
It is made of a material having elasticity that can be changed in shape according to the size of the inner space;
The orifice 570,
Door installation structure, characterized in that the size of the cross-sectional area gradually increases or decreases toward one side.

The fixed hinge piece 100 and the floating hinge piece 200 according to any one of claims 2 to 4,
Comprising a shape corresponding to each other, the fixed coupling portion 110 and the fluid coupling portion 210 is formed in which the hinge shaft 300 is received inside;
In the fixed coupling portion 110 and the fluid coupling portion 210,
Door mounting structure, characterized in that the installation groove 120 is mounted to one end of the opening and closing member 400 and the flow groove 220 is selectively accommodated to the other end of the opening and closing member 400, respectively.