Impact Noise Prevention Device for Opening Door

Abstract

The present invention relates to a prevention device installed on a door frame of a hinged door to prevent the hinged door from closing suddenly. More specifically, a wing is installed on one side of a hinge fixed to the door frame, and the wing can rotate around the hinge by the force of wind passing between the hinged door and the door frame, that is, the wind force, so as to reduce the impact and noise generated by the sudden closing of the hinged door. The present invention relates to an impact noise prevention device for a hinged door that can be conveniently installed and removed by being installed on the door frame.

Description

Technical Field

[0001] The present invention relates to a prevention device installed on a door frame of a hinged door to prevent the hinged door from closing suddenly. More specifically, a wing is installed on one side of a hinge fixed to the door frame, and the wing can rotate around the hinge by the force of wind passing between the hinged door and the door frame, that is, the wind force, so as to reduce the impact and noise generated by the sudden closing of the hinged door. The present invention also relates to an impact noise prevention device for a hinged door that can be conveniently installed and removed by being installed on the door frame.

Background Art

[0002] Generally, hinged doors are often used for entry and exit inside residential or office buildings. Such hinged doors are often left open for ventilation and air circulation to create a comfortable indoor environment. However, if left open, unexpected strong winds from the outside may suddenly cause them to close. Further, just before the hinged door closes due to the wind flowing in from the outside, the wind speed of the gap wind passing through the narrow space between the door and the door frame suddenly accelerates. At this time, when the door closes suddenly, a large impact and a large noise are generated.

[0003] The problems caused by such hinged doors closing suddenly and frequently due to strong winds include loud noises, damage, cracks, and safety accidents such as injury accidents where the hands of the elderly, infants, and children indoors are pinched due to the strong impact between the door and the door frame. The loud noise startles people and disturbs the sleep of infants and children.

[0004] Conventional tools with the function of preventing the door from closing, that is, devices such as fasteners at the bottom of the door and side-mounted tools for the door, not only have the trouble that users have to directly install and remove them for preventing the door from closing, but also users have to always directly operate them. If they forget to fasten or fit the door for a moment to prevent it from closing due to strong external winds, they will be exposed to accidents that may occur due to unexpected door closing and will not be completely liberated from dangerous situations. As a related prior art, there is a door closing prevention stopper proposed in Japanese Registered Patent No. 10-1084538.

[0005] In the said patent, the mounting plate 11 attached to the door frame 22 forms a fitting groove 13 into which the pedestal 12 is fitted and rotates. In the door closing prevention stopper configured with the pedestal 12 having a length that abuts against the door 21 and prevents the door 21 from closing when it is fitted into the fitting groove 13 and rotated to either side, a plurality of fitting grooves 13 are formed in the mounting plate 11 into which pedestals 12' of various lengths are fitted and rotate, and a plurality of pedestals 12' of different lengths are configured so that the positions where they abut against the door 21 are different. However, the pedestal always hits a specific position of the door, and the longer the service period, the more the door will be damaged. Especially when the door must be completely closed, the pedestal must be completely rotated, so it is inconvenient to use. As another prior art, there is a door closing prevention device for a hinged door proposed in Japanese Utility Model Registration No. 20-0362906.

[0006] In the said utility model, in a door closing prevention device for a hinged door provided in the space between the hinged door and the door frame to support the hinged door so that it does not close when it is open, a first hinge shaft 11 is formed on one side, and a first support plate 10 whose both ends are formed to be capable of seesaw motion around the first hinge shaft 11, a second hinge shaft 21 is formed on one side, and both ends are formed to be capable of seesaw motion around the second hinge shaft 21 and are cross-coupled with the first support plate 10, a second support plate 20, a pin shaft 30 that axially couples the first hinge shaft 11 of the first support plate 10 and the second hinge shaft 21 of the second support plate 20 on the same line, and an elastic spring 40 provided between the first support plate 10 and the second support plate 20 to elastically support the first support plate 10 and the second support plate 20 are included. However, since the door closing prevention device for the hinged door must be fitted and installed between the hinged door and the door frame, the installation is difficult, and it may be difficult to completely close the door.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0008] Therefore, the present invention is provided on the door frame of a hinged door and, as a prevention device for preventing the hinged door from closing suddenly, a wing is installed on one side of a hinge fixed to the door frame. By enabling the wing to rotate around the hinge by the force of the wind passing between the hinged door and the door frame, that is, the wind force, the impact and noise generated when the hinged door closes suddenly can be reduced. By being installed on the door frame, it aims to provide an impact and noise prevention device for a hinged door that can be conveniently installed and removed.

[0009] In addition, a front buffer material is attached to the front surface of the wing, and a cushion is attached to the front buffer material, aiming to provide an impact and noise prevention device for a hinged door that can absorb the impact generated when the hinged door closes suddenly and reduce noise.

[0010] In addition, a rear buffer material is further attached to the rear surface of the wing, and the rear buffer material aims to provide an impact and noise prevention device for a hinged door that can absorb the impact generated when opening the hinged door and reduce impact noise.

Means for Solving the Problems

[0011] The impact noise prevention device for a hinged door according to the present invention is a prevention device for preventing the impact and noise generated when the hinged door closes suddenly. It is characterized by comprising a fixed plate fixed to the door frame of the hinged door, a hinge fixedly coupled to the fixed plate, a rotating pipe penetratingly coupled by the hinge and rotatable about the hinge, and a wing fixed to the rotating pipe and rotated by the force of the wind passing between the hinged door and the door frame.

Effect of the Invention

[0012] The impact noise prevention device for a hinged door according to the present invention is a prevention device provided on the door frame of the hinged door to prevent the hinged door from closing suddenly. A wing is installed on one side of the hinge fixed to the door frame, and the wing can be rotated about the hinge by the force of the wind passing between the hinged door and the door frame, that is, the wind force, so as to reduce the impact and noise generated when the hinged door closes suddenly. There is a remarkable effect that it can be conveniently installed and removed by being installed on the door frame. A front buffer material is attached to the front surface of the wing, and a cushion is attached to the front buffer material to absorb the impact generated when the hinged door closes suddenly and reduce the noise. In addition, a rear buffer material is further attached to the back surface of the wing, and the rear buffer material has a remarkable effect of absorbing the impact generated when the hinged door is opened and reducing the impact noise.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

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Figure 4

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Figure 6

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Figure 8

Mode for Carrying Out the Invention

[0014] The present invention relates to a prevention device installed on the door frame of a hinged door to prevent the hinged door from closing suddenly. More specifically, a wing is installed on one side of a hinge fixed to the door frame, and the wing can rotate around the hinge by the force of the wind passing between the hinged door and the door frame, that is, the wind force, so as to reduce the impact and noise generated by the sudden closing of the hinged door. It is an impact noise prevention device for a hinged door that can be conveniently installed and removed by being installed on the door frame. Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings as follows.

[0015] FIG. 1 is an overall configuration diagram of the present invention, FIG. 2 is a front configuration diagram of the present invention, and FIG. 3 is a sectional view taken along the line A-A' of FIG. 2. The impact noise prevention device for a hinged door according to the present invention is a prevention device for preventing the impact and noise generated by the sudden closing of the hinged door 10. It includes a fixed plate 1 fixed to the door frame 11 of the hinged door 10, a hinge 2 fixedly coupled to the fixed plate 1, a rotating pipe 3 penetratingly coupled by the hinge 2 and rotated around the hinge 2, and a wing 4 fixed to the rotating pipe 3 and rotated by the force of the wind passing between the hinged door 10 and the door frame 11, which is characterized in this.

[0016] First, the hinged door 10 is a door used for entry and exit inside a residence or an office building, and is a door that is opened and closed by an opening and closing method. Around the hinged door 10, a rectangular door frame 11 is installed, and the hinged door is fixed by fixing members such as hinges for opening and closing the hinged door 10.

[0017] A fixed plate 1 with bolt holes formed in the door frame 11 is fixedly coupled by bolts 9. The hinge 2 is a shaft fixed to the fixed plate 1. The rotating pipe 3 is a hollow pipe that is coupled in a state of being penetrated by the hinge 2 and is rotated about the hinge 2. A wing 4 is installed on one side of the rotating pipe 3, and the wing 4 is rotated by the force of the wind passing between the opening door 10 and the door frame 11, that is, the wind force.

[0018] Here, in the illustrated embodiment, the fixed plate 1 is fixed to the door frame 11 by bolts 9. However, in some cases, an adhesive may be applied to the fixed plate 1 for adhesion, or the fixed plate 1 can be fixed to the door frame 11 using an adhesive member such as an adhesive sticker. The fixed plate 1 itself can be manufactured in the form of a vacuum suction plate to provide convenience for attachment and detachment.

[0019] Also, a front buffer 5 is attached to the front surface of the wing 4, and a cushion 6 is attached to the front buffer 5 to absorb the impact generated when the opening door 10 closes rapidly and reduce noise.

[0020] That is, the front buffer 5 is a buffer attached to the front surface of the wing 4, and a cushion 6 is further attached to the surface of the front buffer 5. When the opening door 10 closes, it first touches the cushion 6 and the impact is absorbed, and the impact of such a cushion 6 is installed in a structure where it is absorbed by the front buffer 5 again.

[0021] In the illustrated embodiment, when the wing 4 is viewed from the front, it is illustrated as a quadrilateral. However, in some cases, it can be made in various shapes such as a circle, a polygon, a heart shape, an airplane wing shape, etc. Particularly, when the same wind force acts, a shape in which the rotational force of the wing is larger even with the same area is preferable. Also, it is preferable that when the same force acts on the same area of the front buffer 5 and the cushion 6, the amount of deformation of the cushion 6 is larger than the amount of deformation of the front buffer 5.

[0022] That is, since the cushion 6 is formed of a relatively soft material and the front buffer 5 is formed of a material relatively harder than the cushion 6, the impact caused by the closing of the opening door 10 is first absorbed by the cushion 6 and then absorbed by the double structure in which the front buffer 5 of the hard material absorbs it again, preventing the generation of a large noise.

[0023] Further, a rear buffer 7 is further attached to the back surface of the wing 4, and the rear buffer 7 can absorb the impact generated when the opening door 10 is opened and reduce the impact noise.

[0024] That is, when the door is closed as shown in the state of FIG. 4 and the door is opened as shown in FIG. 5, the opening door 10 collides with the back surface of the wing 4. Therefore, by attaching another rear buffer 7 to the back surface of the wing 4, the noise generated when the opening door 10 is opened can be reduced. Further, the hinge 2 is a cylindrical shaft, and the rotating pipe 3 can be made of a bushing.

[0025] That is, the bushing is one of the oil-less bearings, is penetrated and coupled by the hinge 2 which is a cylindrical shaft, minimizes the frictional force with the hinge 2, and can make the rotating operation of the wing 4 more rapid by the wind when the opening door 10 is closed. FIG. 8 is an exemplary view of another embodiment of the present invention, and a plurality of ventilation holes 4a can be formed in the wing 4.

[0026] That is, the ventilation holes 4a can serve to make the rotating operation of the wing 4 smoother by allowing the wind passing around the wing 4 to pass through the surface of the wing 4 to the opposite side. Hereinafter, looking at the operation method of the present invention through FIGS. 5 to 7, it is as follows.

[0027] With the opening door 10 open as shown in FIG. 5 for ventilation or air circulation, when the wind W blows in the direction of closing the opening door 10 and the opening door 10 closes as shown in FIG. 6, the wind passes between the opening door 10 and the door frame 11 while closing the opening door 10. The wind that causes the opening door 10 to close will move at a wind speed that increases as the opening door 10 closes. Such a wind W causes the wing 4 to quickly rotate between the opening door 10 and the door frame 11 around the hinge 2 as shown in FIG. 7, so that the wing 4 touches the opening door 10 first before the opening door 10 completely closes and collides with the door frame 11.

[0028] Therefore, the impact generated by the sudden closing of the opening door 10 is absorbed by the cushion 6 and the front buffer material 5 installed on the wing 4, thereby preventing the generation of noise.

[0029] In particular, as the opening door 10 closes, the space through which the wind W can pass between the opening door 10 and the door frame 11 decreases. However, the wind moves at a higher speed in the state of FIG. 7 than in the state of FIG. 5, thereby greatly applying a rotational force to the wing 4. Also, since the opening door 10 cannot be completely closed by the wind with a high wind speed, safety accidents such as a child or infant getting their hand caught in the gap of the door can be prevented.

[0030] Also, referring to FIGS. 1, 3, and 8, on one side of the fixed plate 1, a fixed pipe 1a having the same diameter as the diameter of the rotating pipe 3 is formed. The fixed pipe 1a is penetrated and coupled by the hinge 2. A stopper 12 protruding with a certain length is formed on the fixed pipe 1a. The stopper 12 restricts the amount of rotation of the wing 4, thereby restricting the further rotation of the wing 4 by the opening door 10 beyond a specific position when the opening door 10 closes.

[0031] Ultimately, the impact noise prevention device for a hinged door according to the present invention is a prevention device provided on the door frame of the hinged door to prevent the hinged door from closing suddenly. Wings are installed on one side of the hinge fixed to the door frame, and the wings can rotate around the hinge by the force of the wind passing between the hinged door and the door frame, that is, the wind force, so as to reduce the impact and noise generated by the sudden closing of the hinged door. There is a remarkable effect that it can be conveniently installed and removed by being installed on the door frame. A front buffer material is attached to the front surface of the wing, and a cushion is attached to the front buffer material, which can absorb the impact generated by the sudden closing of the hinged door and reduce noise. In addition, a rear buffer material is further attached to the back surface of the wing, and the rear buffer material has a remarkable effect of absorbing the impact generated when opening the hinged door and reducing impact noise.

Description of Symbols

[0032] 1 Fixed plate 1a Fixed pipe 2 Hinge 3 Rotating pipe 4 Wing 4a Vent hole 5 Front buffer material 6 Cushion 7 Rear buffer material 8 Stopper 9 Bolt 10 Hinged door 11 Door frame

Claims

1. In a prevention device for preventing impact and noise generated when the opening door 10 closes rapidly, a fixed plate 1 fixed to the door frame 11 of the opening door 10, a hinge 2 fixedly coupled to the fixed plate 1, a rotating pipe 3 penetratingly coupled by the hinge 2 and rotating about the hinge 2, and a wing 4 fixed to the rotating pipe 3 and rotated by the force of wind passing between the opening door 10 and the door frame 11. The impact noise prevention device for an opening door is characterized by being composed of these components.

2. A front buffer material 5 is attached to the front surface of the wing 4, and a cushion 6 is attached to the front buffer material 5. The impact noise prevention device for an opening door according to claim 1 is characterized by absorbing the impact generated when the opening door 10 closes rapidly and reducing noise.

3. The front buffer material 5 and the cushion 6 are characterized in that when the same force acts on the same area, the deformation amount of the cushion 6 is larger than the deformation amount of the front buffer material 5. The impact noise prevention device for an opening door according to claim 2.

4. A rear buffer material 7 is further attached to the rear surface of the wing 4. The rear buffer material 7 is characterized by being able to absorb the impact generated when the opening door 10 is opened and reducing impact noise. The impact noise prevention device for an opening door according to claim 1.

5. The hinge 2 is a cylindrical shaft, and the rotating pipe 3 is a bush. The impact noise prevention device for an opening door according to claim 1.

6. The wing 4 is characterized by having a plurality of ventilation holes 4a formed therein. The impact noise prevention device for an opening door according to claim 1.

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