IMPACT NOISE PREVENTION DEVICE FOR OPENIONG/CLOSING DOOR

Abstract

The present invention relates to a prevention device that is installed on a door frame of an opening/closing door to prevent sudden closing of the opening/closing door, and more particularly, to an impact noise prevention device for an opening/closing door which is configured to install wings on one side of a hinge fixed to the door frame, allows the wings to rotate around the hinge by the force of the wind passing between the opening/closing door and the door frame, i.e. the wind force, thereby reducing the impact and noise caused by the sudden closing of the opening/closing door, and is installed in the door frame to conveniently perform its installment and removal.

Claims

1. An impact noise prevention device for an opening/closing door which prevents impact and noise caused by sudden closing of an opening/closing door 10, the device comprising: a fixed plate 1 fixed to a door frame 11 of the opening/closing door 10, a hinge 2 fixedly coupled to the fixing plate 1, a rotating pipe 3 coupled through 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 opening/closing door 10 and the door frame 11.

2. The impact noise prevention device for an opening/closing door according to claim 1, wherein: a front cushioning member 5 is attached to the front surface of the wing 4, and a cushion 6 is attached to the front cushioning member 5, which absorbs the impact generated by sudden closing of the opening/closing door 10, thereby reducing noise.

3. The impact noise prevention device for an opening/closing door according to claim 2, wherein: the front cushioning member 5 and the cushion 6 are configured such that the amount of deformation of the cushion 6 when the same force acts on the same area is greater than the amount of deformation of the front cushioning member 5.

4. The impact noise prevention device for an opening/closing door according to claim 1, wherein: a rear cushioning member 7 is further attached to the rear surface of the wing 4, and rear cushioning member 7 can absorb the impact generated when the opening/closing door 10 is opened, thereby reducing the impact noise.

5. The impact noise prevention device for an opening/closing door according to claim 1, wherein: the hinge 2 is a cylindrical shaft, and the rotating pipe 3 is made from a bushing.

6. The impact noise prevention device for an opening/closing door according to claim 1, wherein: a plurality of aeration holes 4a are formed in the wing 4.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is an overall configuration diagram of the present invention.

[0016] FIG. 2 is a front configuration view of the present invention.

[0017] FIG. 3 is a cross-sectional view of the section A-A of FIG. 2.

[0018] FIGS. 4 to 7 are use state diagrams of the present invention.

[0019] FIG. 8 is an exemplary view of another embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention relates to a prevention device that is installed on a door frame of an opening/closing door to prevent sudden closing of the opening/closing door, and more particularly, to an impact noise prevention device for an opening/closing door which is configured to install wings on one side of a hinge fixed to the door frame, allows the wings to rotate around the hinge by the force of the wind passing between the opening/closing door and the door frame, i.e. wind force, thereby reducing the impact and noise caused by the sudden closing of the opening/closing door, and is installed in the door frame to conveniently perform its installment and removal.

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] FIG. 1 is an overall configuration diagram of the present invention, FIG. 2 is a front configuration view of the present invention, and FIG. 3 is a cross-sectional view of the section A-A of FIG. 2. An impact noise prevention device for an opening/closing door according to the present invention is a prevention device which prevents impact and noise caused by sudden closing of an opening/closing door 10, the device comprising: a fixed plate 1 fixed to a door frame 11 of the opening/closing door 10, a hinge 2 fixedly coupled to the fixing plate 1, a rotating pipe 3 coupled through 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 opening/closing door 10 and the door frame 11.

[0023] First, the opening/closing door 10 is a door used for entering and exiting the interior of a residential or an office building, and is a door that is closed by an opening and closing method, where a rectangular door frame 11 to which the opening/closing door is fixed by a fixing member such as a hinge is installed around the opening/closing door 10 to open and close the opening/closing door 10.

[0024] The fixing plate 1 having a bolt hole formed in the door frame 11 is fixedly coupled by bolts 9, the hinge 2 is a shaft fixed to the fixing plate 1, the rotating pipe 3 is a hollow pipe coupled in a state of being penetrated by the hinge 2 and rotated around 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/closing door 10 and the door frame 11, that is, the wind power.

[0025] Here, in the illustrated embodiment, the fixing plate 1 is fixed to the door frame 11 by bolts 9, but in some cases, the fixing plate 1 may be fixed to the door frame 11 by applying adhesive to the fixing plate 1 or using an adhesive member such as an adhesive sticker, and the fixing plate 1 itself can be made in the form of a vacuum suction plate to provide convenience of attachment and detachment.

[0026] In addition, a front cushioning member 5 is attached to the front of the wing 4, and a cushion 6 is attached to the front cushioning member 5, which absorbs the impact generated when the opening/closing door 10 is suddenly closed, thereby reducing noise.

[0027] That is, the front cushioning member 5 is a cushioning member attached to the front of the wing 4, and is installed in the structure in which a cushion 6 is further attached to the surface of the front cushioning member 5, and when the opening/closing door 10 closes, it first hits the cushion 6 and absorbs the impact, and such impact of the cushion 6 is again absorbed by the front cushioning member 5.

[0028] In the illustrated embodiment, the wing 4 is shown to be square when viewed from the front, but in some cases, it can be made in various shapes such as circular, polygonal, heart-shaped, airplane wing-shaped. In particular, when the same wind force acts, it is preferable to have a shape in which the rotational force of the blade is larger even if the area is the same.

[0029] Moreover, the front cushioning member 5 and the cushion 6 are preferably configured such that the amount of deformation of the cushion 6 is larger than the amount of deformation of the front cushioning member 5 when the same force acts on the same area.

[0030] That is, the cushion 6 is made from a relatively soft material, and the front cushioning member 5 is made from a material that is relatively harder than the cushion 6. Thus, the impact caused by the closing of the opening/closing door 10 is first absorbed by the cushion 6, and then absorbed by the double structure in which the front cushioning member 5 of a hard material absorbs again, thereby preventing the generation of loud noise.

[0031] In addition, a rear cushioning member 7 is further attached to the rear surface of the wing 4, and the rear cushioning member 7 can absorb the impact generated when the opening/closing door 10 is opened, thereby reducing the impact.

[0032] That is, when the door is opened as shown in FIG. 5 in a state where the door is closed as in the state of FIG. 4, the opening/closing door 10 collides with the rear surface of the wing 4, so that a separate rear cushioning member 7 is attached even to the rear surface of the wing 4, and thus, the noise generated when opening the opening/closing door 10 can be reduced.

[0033] In addition, the hinge 2 is a cylindrical shaft, and the rotating pipe 3 may be made from a bushing.

[0034] That is, the bushing is one of the oilless bearings, and is penetrated and coupled by the hinge 2, which is a cylindrical shaft, and minimizes the frictional force with the hinge 2, so that when the door 10 is closed, the wind can make the rotation motion of the blades 4 more rapid.

[0035] FIG. 8 is an exemplary view of another embodiment of the present invention, and a plurality of aeration holes 4a may be formed in the wing 4.

[0036] That is, the aeration hole 4a allows the wind passing around the wing 4 to pass through the surface of the wing 4 to the opposite side, and thus can serve to more smoothly perform the rotational operation of the wings 4.

[0037] Next, the operation method of the present invention will be described with reference to FIGS. 5 to 7.

[0038] In a state where the opening/closing door 10 is left open for airing or ventilation as shown in FIG. 5, when the wind W blows in the direction of closing the opening/closing door 10 and the opening/closing door 10 is closed as shown in FIG. 6, the opening/closing door 10 is closed while air passes between the opening/closing door and the door frame 11. The wind that causes the opening/closing door 10 to close is moved at a faster wind speed as the opening/closing door 10 closes. As shown in FIG. 7, the wind W causes the wing 4 to rotate rapidly between the opening/closing door 10 and the door frame 11 around the hinge 2, so that the opening/closing door 10 is completely closed and makes first contact with the wing 4 before colliding with the door frame 11.

[0039] Therefore, the impact generated by the sudden closing of the opening/closing door 10 is absorbed by the cushion 6 and the front cushioning member 5 installed on the wings 4, thereby preventing noise from being generated.

[0040] In particular, as the opening/closing door 10 is closed, the space through which the wind W can pass between the opening/closing door 10 and the door frame 11 is reduced. The wind moves at a faster speed in the state of FIG. 7 than in the state of FIG. 5, and thus, a large rotational force is imparted to the wing 4.

[0041] In addition, the opening/closing door 10 does not completely close even by the wind of high wind speed, and therefore, it is possible to prevent safety accidents such as getting infant or children's hands caught in the door gap.

[0042] Further, referring to FIGS. 1, 3 and 8, a fixed pipe 1a having the same diameter as the diameter of the rotating pipe 3 is formed on one side of the fixed plate 1, the fixed pipe 1a is penetrated and coupled by a hinge 2, a stopper 12 protruding with a certain length is formed in the fixed pipe 1a, and the stopper 12 limits the amount of rotation of the wings 4. Therefore, when the opening/closing door 10 is closed, the opening/closing door 10 restricts the wing 4 from rotating more than a specific position.

[0043] Eventually, an impact noise prevention device for an opening/closing door according to the present invention is a prevention device that is installed on a door frame of an opening/closing door to prevent sudden closing of the opening/closing door, and is configured to install wings on one side of a hinge fixed to the door frame, and allows the wings to rotate around the hinge by the force of the wind passing between the opening/closing door and the door frame, i.e. the wind force, thereby reducing the impact and noise caused by the sudden closing of the opening/closing door, and is installed in the door frame to conveniently perform its installment and removal. Further, a front cushioning member is attached to the front surface of the wing, and a cushion is attached to the front cushioning member, which absorbs the impact generated by sudden closing of the opening/closing door, thereby reducing noise, and a rear cushioning member is further attached to the rear surface of the wing, and rear cushioning member can absorb the impact generated when the opening/closing door is opened, thereby reducing the impact noise.

DESCRIPTION OF REFERENCE NUMERALS

[0044] 1: fixed plate 1a: fixed pipe [0045] 2: hinge 3: rotating pipe [0046] 4: wing 4a: aeration hole [0047] 5: front cushioning member 6: cushion [0048] 7: rear cushioning member 8: stopper [0049] 9: bolt 10: opening/closing door [0050] 11: door frame