KR101675591B1

KR101675591B1 - Impact absorber for preventing the door from shutting

Info

Publication number: KR101675591B1
Application number: KR1020150104561A
Authority: KR
Inventors: 장용운
Original assignee: 장용운
Priority date: 2015-07-23
Filing date: 2015-07-23
Publication date: 2016-11-11

Abstract

The door can be prevented from colliding with the wall by the door buffer attached to the wall when the door is opened and the door can be kept opened to prevent unexpected door closing A door bumper with improved door closure function is disclosed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door bumper having a door closing function,

The present invention relates to a door cushion having a door closing function, and more particularly, to a door cushion for preventing door collision against a wall by a door cushion attached to a wall when the door is opened, To a door bumper having a door closure function capable of preventing unexpected door closing due to wind or the like.

In general, various doors and windows are installed inside the residential and office buildings. In the case of the doorway, the door is easily opened and closed, and the door is used to conveniently operate the locking device from inside and outside. In the case of the window, Sliding doors that do not protrude and are not affected by the wind are often used.

As for the above-mentioned hinged door, opening and closing of the hinged door is advantageous in that the door is opened and closed easily by a small force as well as the noise is relatively small because friction is small in comparison with the sliding door. So that there is a problem that a door is collapsed or a collision sound is generated. In particular, there is a problem that an open door of a closed state unexpectedly closes due to wind.

In other words, the hinged door opened for ventilation and ventilation in a residential space or office such as an apartment can not be kept open, and a strong collision sound is generated due to external factors such as wind, resulting in a significant collision noise. It was even bigger.

In order to solve the disadvantages of the conventional door as described above, a design is used in which a cushioning member is attached to one side of a wall or a hinged door so that the knob does not directly collide with the wall. However, the door is closed unexpectedly due to the wind In the related art, there was only a limited amount of research or development to solve the problem, since it was only a matter of supporting a heavy object at the bottom of the hinged door or tying the handle to a string.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide a door detachment preventing apparatus which can prevent a door from colliding with a wall by a door buffer attached to a wall when a door is opened, So that the door can be prevented from being closed unexpectedly by wind or the like.

The above and other objects can be accomplished by the provision of a support structure for a vehicle, comprising: a support plate installed on a wall; a housing provided on a front side of the support plate and having a hollow interior; an end portion disposed inside the housing; A buffer shaft supported by a spring provided in the housing and absorbing a shock of a door opened to a wall while being resiliently operated; a switch installed on the support plate and operated by pressing the buffer shaft; And a locking means which is rotatably installed on the front side of the door, which is selectively in contact with the buffer shaft by operation, and which locks the door while being pivoted to the front surface of the door closely attached to the buffer shaft to prevent the door from being closed And a door bumper having a door closure prevention function.

In this case, the housing has an annular stopping protrusion formed in the front end opening, and an exposing hole is formed in a rear end of the housing to expose a switch installed on the supporting plate. A rod accommodating groove is formed in front of the exposing hole, A bumper having a front end of the bumper shaft supported by the front end of the housing and supporting the door opened to the front side of the housing, A piston rod to which a rear end of the bumper is fixed, a piston rod extending rearward from the piston and guided along a rod receiving groove at a rear end thereof when the piston is moved rearwardly, And a pressing projection for pressing and operating the switch, wherein the spring is fitted to the piston rod The front end is supported on the rear surface of the piston and the rear end is supported on the support jaw so that the buffer shaft is elastically moved forward and backward in the housing.

In addition, the locking means may include a mounting base extending from the upper side of the housing to a front side of the supporting plate and having a battery accommodating portion having a built-in battery therein, and a control unit disposed at a front end of the mounting base, And a motor which is connected to the motor shaft of the decelerating motor and rotates to the front side of the door which is in close contact with the shock absorbing shaft by rotation of the motor shaft, And is configured to lock the door to prevent the door from being closed when the door is pivoted to the front surface of the door closely attached to the shock absorbing shaft and to unlock the door so that the door can be pivoted when the door is rotated upward, And a dead bolt.

It is possible to prevent the door from colliding against the wall by the door buffer attached to the wall when the door according to the present invention is opened and to keep the door open through the locking means, The door can be prevented from being closed unexpectedly, thereby preventing occurrence of an impact sound or a safety accident.

1 is a view showing a state where a door buffer having a door closing function according to the present invention is installed,
2 is a perspective view of a door cushion having a door closing function according to the present invention,
3 is a side view of a door cushion having a door closing function according to the present invention,
Fig. 4 is a sectional view of Fig. 3,
5 is a plan view of a door buffer having a door closing function according to the present invention,
6 is a configuration diagram of another preferred embodiment of a door buffer having a door closing function according to the present invention,
7 to 13 are views for explaining the operation of a door buffer having a door closure function according to the present invention.

The present invention will now be described in detail with reference to the accompanying drawings.

1, a door buffer 10 having a door closing function according to the present invention is installed on one side wall 2 of an entrance 1. [ That is, the present invention prevents the door (3) from colliding with the wall (2) by the door buffer (10) attached to the wall when the hinged door (hereinafter referred to as 'door' The door 3 is configured so as to be able to lock the opened door 3 so that the door 3 can be kept open.

2 to 5, a door buffer 10 having a door closing prevention function according to the present invention includes a support plate 100, a housing 200, a shock absorbing shaft 300, a switch 400, 500).

The support plate 100 is installed on one side wall 2 of the door so that the door buffer 10 can be installed on the wall 2. The support plate 100 is installed at a position corresponding to the door buffer 10 so that the upper edge of the door 2 can be supported by the door buffer 10 . It is preferable that the support plate 100 is formed with a plurality of fastening holes 110 through which fastening screws pass so that the door buffer 10 can be attached to the wall 2 through fastening screws.

The housing 200 is provided at a front portion of the support plate 100 and is formed in a hollow 210 in which a buffer shaft 300 to be described later is inserted so that the buffer shaft can be assembled to be operated forward and backward. do.

More specifically, the housing 200 has an annular stop 220 formed at the front end opening. The housing 200 is formed with an exposure hole 230 through which the switch 400 installed on the support plate 100 is exposed. A rod receiving groove 240 is formed in front of the exposing hole 230 and a support rim 250 is formed at a front end of the rod receiving groove 240.

The shock absorbing shaft 300 is configured to absorb the impact of the door 3 assembled to the housing 200 and has one end disposed inside the housing 200 and the other end disposed outside the housing 200 As shown in FIG. The buffer shaft 300 is supported by a spring S installed in the housing 200. That is, the shock-absorbing shaft 300 is pressed by the door 3 opened toward the wall, and is elastically moved forward and backward by the spring S in the housing 200, And is configured to absorb shock.

More specifically, the shock-absorbing shaft 300 includes a bumper 310 to which the door 3, which is exposed to the front of the housing 200 and opens toward the wall, is supported. That is, the bumper 310 is a portion where the door 3 directly comes in close contact with the bumper 310, and is preferably made of rubber or synthetic resin so as to absorb the impact of the door 3. The shock absorbing shaft 300 is installed inside the housing 200 and is supported by the engaging protrusion 220 to restrict forward movement of the shock absorbing shaft 300. The piston 320 is fixed to the rear end of the bumper 310, . The shock absorbing shaft 300 includes a piston rod 330 which extends rearward from the piston 320 and is moved rearward to guide a rear end of the shock absorbing shaft 300 along the rod receiving groove 240. Here, the buffer shaft 300 is restricted in its forward movement due to the engagement of the piston 320 with the engaging jaw 220 of the housing, and the piston rod 330 is moved backward while being supported by the rod receiving groove 240 Is limited. Therefore, the buffer shaft 300 is installed to be movable back and forth between the latching jaw 220 and the rear end of the rod receiving groove 240 in the housing 200. The shock absorbing shaft 300 includes a pushing protrusion 340 that extends to the rear side of the piston rod 330 and selectively presses the switch 400 to operate the switch 400. When the user further presses the door 3 in a state in which the door 3 is in close contact with the buffer shaft 300, the buffer shaft 300 is moved backward by the pressure protrusion 340 And is configured to be operated while being pressurized.

The switch 400 is installed on the support plate 100 and is operated by pressing the buffer shaft 300. That is, the switch 400 is configured to be operated by the pressing projection 340 by the forward and backward movement of the shock absorbing shaft 300.

The locking means 500 is configured to be rotatable to the front side of the door 3 which is selectively in contact with the shock absorbing shaft 300 by the operation of the switch 400. The locking means 500 is configured to prevent the door 3 from being closed by locking the door 3 while being pivoted to the front surface of the door 3 which is in close contact with the buffer shaft 300. That is, since the locking means 500 is configured to lock the door 3 in a state in which the door 3 is in close contact with the buffer shaft 300, the door 3 can be maintained in an open state, And is configured to prevent the door from being closed.

More specifically, the locking means 500 is provided with a battery accommodating portion 511 extending forward from the support plate 100 to the upper side of the housing 200 and having a built-in battery B therein, (510). The battery accommodating unit 511 may be opened through a cover 511a provided at the upper portion of the battery accommodating unit 511 so that the battery accommodating unit 511 can be replaced when the internal battery B is consumed.

The locking means 500 is configured to be installed at the front end of the mounting table 510 and to be operated by receiving the current of the battery B. When the switch 400 is operated, And a decelerating motor 520 constituted by the motor. Here, it is preferable that the deceleration motor 520 is connected to the switch 400 in a wired or wireless manner, and is configured to be operated by the operation of the switch 400.

One end of the locking means 500 is coupled to the motor shaft 521 of the deceleration motor 520 and is coupled to the front surface of the door 3 which is in close contact with the buffer shaft 300 by the rotation of the motor shaft 521. [ And a dead bolt 530 configured to be rotatable in the direction of the arrow. The dead bolt 530 is coupled to the motor shaft 521 to prevent the door 3 from being closed when the door 3 is pivoted to the front of the door 3 in close contact with the buffer shaft 300, And is configured to unlock the door so that the door 3 is rotated when the door 3 is rotated upward.

Here, the dead bolt 530 is preferably configured to be received in the rotation receiving groove 512 formed at the front end of the mounting table 510. That is, when the dead bolt 530 is pivoted toward the mounting base 510, the dead bolt 530 is received in the rotation receiving cavity 512 and is not exposed to the outside of the mounting base 510. A rotating protrusion 531 is formed in the front and rear direction of one end of the dead bolt 530 and a rotating groove 512a is formed in the receiving recess 512 to receive the rotating protrusion 531 in a rotatable manner . Of course, the rotation protrusion 531 formed on the rear side of the dead bolt 530 is configured such that the motor shaft 521 is engaged and the rotation protrusion 531 is rotatable on the rotation groove 512a by rotation of the motor shaft desirable.

In the meantime, it is preferable that the door (3) locked to the door buffer (10) is unlocked to close the door (1) when a fire occurs.

6, the support plate 100 is provided with a combustion smoke detection sensor 120 and the combustion smoke detection sensor 120 is electrically connected to the deceleration motor 520, It is preferable to selectively operate. That is, when the door 3 in close contact with the shock absorbing shaft 300 is locked by the dead bolt 530 and the combustion smoke is detected by the combustion smoke detection sensor 120, the combustion smoke detection sensor 120 Is configured to unlock the door 3 with respect to the dead bolt 530 so that the door 3 can be rotated by operating the decelerating motor 520 so that the door 3 is closed so that the combustion smoke It is desirable to be configured not to enter the room. The door buffer 10 applied to the above embodiment is applied to a door such as an emergency exit door and a residential fire door so that the door is automatically closed by the above-mentioned closing function in case of fire, .

The combustion smoke detection sensor 120 is connected to the management room J by wireless data communication so that when the combustion smoke is detected by the combustion smoke detection sensor 120, So that the building's fire detector F is automatically activated. Here, the management room J may include not only an apartment management room but also a fire station, a police station, a shopping mall management room, etc., and the fire can be promptly announced by the combustion smoke detection sensor 120, There are advantages.

Now, with reference to FIG. 7 to FIG. 13, the operation and operation / effect of the door buffer having the door closing prevention function according to the present invention will be described.

The door buffer having the door closing function according to the present invention is installed on one side wall (2) of the door (1).

7, the shock absorber 10 according to the present invention is pressed by the door 3, which is opened toward the wall, as shown in FIG. 7. At this time, in the housing 200, (S) to absorb the impact of the door (3) while being actuated forward and backward elastically. Therefore, the door shock absorber 10 according to the present invention is prevented from colliding with the wall of the door 3 or the handle of the door 3 when the door is opened to break or make a collision noise.

8, when the door 3 is kept in close contact with the bumper 310 of the shock-absorbing shaft 300, when the door 3 is to be kept open at the doorway 1, When the user further presses the door 3, the shock-absorbing shaft 300 is moved rearward and the switch 400 is pressed by the pressing projection 340 and operated.

9, the deceleration motor 520 is rotated by receiving the signal from the switch 400 and the dead bolt 530 coupled to the motor shaft 521 is moved from the mounting table 510 to the buffer shaft 530. [ And is rotated to the front surface of the door 3 which is in close contact with the door 300. At this time, as shown in FIG. 9, the door 3 is kept locked between the shock absorbing shaft 300 and the dead bolt 530, so that the door is prevented from being closed.

10, when the door 3 is in close contact with the bumper 310 of the shock-absorbing shaft 300, when the door 3 is closed, The buffer shaft 300 is moved backward and the switch 400 is pressed by the pressing protrusion 340 to be operated.

11, the deceleration motor 520 is rotated by receiving the signal of the switch 400, and the dead bolt 530 coupled to the motor shaft 521 is rotated toward the mounting table 510, (Not shown). At this time, as shown in Fig. 12, the dock bolt 530 is released from the locked state of the door 3, and the door 3 is turned toward the door 1 as shown in Fig. 13, Respectively.

As described above, according to the door cushion of the present invention, when the door is opened, the door cushion provided on the wall prevents the door and the handle of the door from colliding against the wall, The collision noise can be minimized by mitigating the impact.

Further, in the present invention, when the door is opened for ventilation or ventilation or the like, the door can be kept open through the locking means, so that the door is prevented from being unexpectedly closed due to the wind or the like, Thereby preventing the occurrence of a strong collision noise and the occurrence of a safety accident.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

10: Door buffer
100: support plate 200: housing
300: buffer shaft 400: switch
500: locking means

Claims

A support plate installed on the wall,
A housing provided in front of the support plate, the housing being hollow;
A shock absorbing shaft for absorbing a shock of a door which is elastically operated and opened toward the wall, the shock absorbing shaft being supported by a spring provided in the housing, the shock absorbing shaft being disposed inside the housing at one end and exposed to the outside of the housing at the other end;
A switch installed on the support plate and operated by pressing the buffer shaft,
And a locking means which is rotatably installed on the front side of the door which is selectively in contact with the buffer shaft by the operation of the switch and which is rotated to the front of the door closely attached to the buffer shaft to prevent the door from being closed by locking the door A door bumper having a door closing function.

The method according to claim 1,
Wherein the housing has an annular stopping protrusion formed at a front end opening thereof and an exposing hole is formed in a rear end of the housing to expose a switch provided on the supporting plate, a rod accommodating groove is formed in front of the exposing hole, A supporting jaw is formed,
The bumper includes a bumper for supporting a door opened to the front side of the housing and supporting the door, a front surface of the bumper is supported by the jaws, and a frontward movement of the bumper is restricted. A piston rod extending rearward from the piston and guided along the rod receiving groove at a rear end thereof when the piston rod is moved rearwardly and a pressing projection extending rearwardly of the piston rod to selectively press the switch to operate the switch Respectively,
Wherein the spring is fitted to the piston rod so that the front end is supported by the rear face of the piston and the rear end is supported by the support flange so that the buffer shaft is elastically moved forward and backward in the housing Door buffer with door closure function.

The method according to claim 1,
Wherein the locking means comprises a mounting base extending from the upper side of the housing toward the front of the supporting plate and having a battery accommodating portion for accommodating a battery therein,
A deceleration motor configured to be operated at a front end of the mounting table and operated by receiving a current of the battery, wherein the deceleration motor is configured to repeat forward rotation and reverse rotation by operation of the switch,
And one end thereof is coupled to the motor shaft of the decelerating motor so as to be rotatable to the front side of the door closely contacted with the shock absorbing shaft by rotation of the motor shaft. When the door is rotated to the front side of the door closely attached to the shock absorbing shaft, And a dead bolt configured to lock the door and configured to unlock the door so that the door can be rotated when the door is rotated to the upper side of the door.

The method of claim 3,
Wherein the support plate is provided with a combustion smoke detection sensor and the combustion smoke detection sensor is electrically connected to the deceleration motor to selectively operate the deceleration motor,
When the door is tightly closed by the dead bolt and the door is locked, when the combustion smoke is detected by the combustion smoke detection sensor, the combustion smoke detection sensor operates the deceleration motor so as to rotate the door, The door is made to be unlocked so that the combustion smoke is prevented from entering the room when the door is closed,
The combustion smoke detection sensor is connected to the management room through wireless data communication. When the combustion smoke is detected by the combustion smoke detection sensor, the combustion smoke detection sensor transmits a signal to the management room so that the smoke detector of the building is automatically operated A door bumper having a door closure function.