KR100737929B1 - Door fixing device - Google Patents

Abstract

Door fixing device according to the present invention, the door (Door) is installed so as to open and close the door to the door frame formed in the entrance, the door and the door is installed so as to be connected to each of the door frame when the door is opened by pressing the door to the door side to close the door. A door closer, and a door fixing unit connected to the door closer and suppressing the driving of the door closer when the door is opened to fix the door. According to this, it is possible to solve the inconvenience that the user can manually fix / unlock the door only by manually operating the conventional door stopper, and the door closer which is generally installed can perform the door fixing function to simplify the installation of the door. have.

Door, Door Stopper, Door Closer, Piston

Description

Door fixing device

1 is a perspective view showing an installation example of a conventional door stopper;

2 is an exploded perspective view showing a state in which a door closer having a door fixing unit according to a first embodiment of the present invention is installed;

3 is a cross-sectional view showing an example of use of the door fixing device of FIG.

Figure 4 is a block diagram showing a door fixing unit according to a first embodiment of the present invention,

5 is a perspective view illustrating a state in which a door closer having a door fixing unit according to a second embodiment of the present invention is installed;

6 is a cross-sectional view showing an example of use of the door closer body along the VI-VI cross-sectional line of FIG.

Explanation of symbols on the main parts of the drawings

100: door stopper 200: door

50, 70: door closer 18b, 71a: piston

60, 80: door fixing unit 61, 81: drive unit

63, 83: fixed rod 64: control unit

69 detection unit 65 switch unit

The present invention relates to a door that opens and closes an entrance and exit, and more particularly, to a door fixing device that prevents the door from closing by itself when the door is opened.

In general, the door for opening and closing the doorway is rotatably installed in the door frame of the doorway. In the case of carrying a large amount of goods through the doorway or several people entering and leaving the doorway, the door needs to be kept open for a certain time.

Referring to FIG. 1, the conventional door 200 generally solves the above-described problem by having a door stopper 100 coupled to the door 200 by a coupling means such as a screw 113 at the bottom thereof. . The door stopper 100 is rotatably installed along the direction of the arrow A in the door 200. According to this, when the door 200 needs to be opened for a long time, when the door stopper 100 is rotated such that the lower end of the door stopper 100 contacts the ground, the door 200 is supported by the door stopper 100 and the support force of the ground. Is suppressed from closing. In this state, if the door 200 is to be closed, the door stopper 100 may be rotated upward, and then the door 200 may be closed.

However, as described above, the door stopper 100 is troublesome because the user must rotate the door stopper 100 by directly lowering the waist every time the door 200 is fixed / unlocked. .

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a door fixing device that can be easily fixed / unlocked in the open state.

Door fixing device according to the present invention for achieving the above object, the door is installed to the opening and closing of the door in the door frame formed in the doorway; A door closer installed to be connected to each of the door and the door frame, the door being closed by pressing the door toward the entrance side when the door is opened; And a door fixing unit connected to the door closer and configured to fix the door by suppressing driving of the door closer when the door is opened.

According to this, it is possible to alleviate the inconvenience that the user can manually fix / unlock the door only by manually operating the door stopper, and the door closer can perform the door fixing function, thereby simplifying the installation of the door.

According to a preferred embodiment of the present invention, the door closer includes a door closer body installed on any one of the door frame and the door, and the door closer body includes: a piston moved when the door is rotated; A spring that biases the piston in a direction in which the door is closed; And a cylinder for guiding the movement of the piston and having the spring installed therein, wherein the door fixing unit fixes the door by fixing the piston when the door is opened.

According to this, the door can be fixed only by simply operating the piston of the door closer.

The door closer body includes a rack formed on the piston and a pinion which engages with the rack and rotates in association with the rotation of the door to move the piston, wherein the door fixing unit includes one of the pinion and the rack. A fixed rod installed in the door closer body to selectively fix any one of the fixed doors; And a driving part which fixes the piston by moving the fixing rod in a direction of fixing any one of the pinion and the rack in the state in which the door is opened.

The door fixing device according to another embodiment of the present invention includes a bypass flow path through which the interference fluid is bypassed when the door closer main body moves in the piston, and the door fixing unit selectively opens and closes the bypass flow path. Valves; And a drive unit for operating the valve to close the bypass flow path in the open state of the door.

On the other hand, the door fixing unit, the detection unit for detecting that the rotation is stopped in the open state; And a controller configured to control driving of the driver in response to the detection signal of the detector.

According to this, since the electronic control of the door fixing unit is possible, it is possible to automatically drive the door fixing unit.

Here, the door fixing unit, the switch unit for transmitting an operation signal by the user's operation to the control unit, it is preferable that the control unit controls the drive unit to release the fixing of the piston when the operation signal is input. .

The switch unit may be configured to detect an external force acting on the door in a direction of closing the door, and transmit the operation signal to the controller when the external force is greater than or equal to a preset size, or the switch unit may be connected to the door. It can be configured in the form of a push switch or a dial switch to be installed.

The door fixing unit may include a timer for calculating an elapsed time after the detection signal is input, and the controller is configured to fix the piston when there is no movement while the door is opened for a preset elapsed time. It is more preferable to control.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 shows a door fixing device according to a first embodiment of the present invention. Referring to this, the door fixing device according to the present embodiment includes a door 200 rotatably connected to the door frame 11, a door closer 50 connected to the door 200, and a door closer 50. And a door fixing unit 60. In the present embodiment, the door closer 50 is fixed to the inside of the door frame 11, and the door 200 includes a rotating shaft 14 in which a shaft hole 12 formed at one side thereof protrudes from the door closer 50 in a rotatable manner. By being coupled is hinged to the door frame (11).

Here, the door closer 50 is for pressing the door 200 in the closing direction when the door 200 is opened so that the door 200 is automatically closed. For this purpose, as shown in FIG. 3, the door closer 50 includes a cylinder 22a filled with the interference fluid F, a piston 18b reciprocating within the cylinder 22a, and a piston 18b. It includes a spring (20) provided as a restoring body that elastically biases it when moving. The piston 18b is connected to the rotation shaft 14 through the first, second, third, and fourth gears 14a, 16a, 16b, and 18a. These gears 14a, 16a, 16b, 18a are formed in the form of bevel gears, or in the form of racks and pinions, and are geared to each other. Accordingly, the piston 18b is reciprocated along the arrow B at the time of rotation of the rotational shaft 14 and the elastic restoring force of the spring 20 according to the rotation of the door 200. For reference, the movement of the piston 18b moved by the configuration as described above is prevented by the interference fluid (F). Accordingly, when the door 200 is closed, the rotational speed of the door 200 is reduced by itself, so that the impact generated by the door frame 11 (see FIG. 2) and the door 200 may be alleviated. For reference, reference numeral 16c denotes a central axis for supporting the second and third gears 16a and 16b, and reference numeral 24 denotes bearings for rotatably supporting the rotation shaft 14 and the central axis 16c. Indicates. In addition, reference numeral 26 denotes a packing for preventing the interference fluid F from leaking, and reference numeral 22b denotes a bypass flow path provided so that the interference fluid F can be bypassed when the piston 18b moves.

On the other hand, the door fixing unit 60 according to the present embodiment is for selectively fixing the piston 18b to be fixed in the open state of the door 200. To this end, the door fixing unit 60 in the present embodiment includes a drive unit 61 and a fixing rod 63. The fixed rod 63 is installed to be able to enter the door closer 50 in the direction of the arrow C through the through hole 22c of the door closer 50, and when entering into the door closer 50, the central shaft ( It is inserted into any one of the plurality of fixing grooves 16d formed on the outer circumferential surface of the 16c. As described above, when the fixing groove 16d and the fixing rod 63 are inserted into and coupled to each other, the rotation of the central shaft 16c is suppressed to fix the piston 18b. This fixed rod 63 is moved by the drive unit 61. The drive unit 61 may be configured to selectively move the fixed rod 63, and may be configured in various forms such as an actuator using a hydraulic cylinder and a solenoid using electromagnetic.

As shown in FIG. 4, the door fixing unit 60 according to the present embodiment includes a control unit 64, a detection unit 69, a memory unit 67, a timer 66, a switch unit 65, and the like. By including the drive unit 61 is configured to be automatically operated in response to the opening of the door 200. The detector 69 monitors the opening of the door 200. To this end, the detection unit 69 may be configured as an optical sensor that can directly detect the movement of the door 200, as shown in Figures 2 and 3, although not shown, the movement of the piston 18b It can be installed in the door closer 50 so as to detect a variety of configurations are possible. On the other hand, the timer 66 calculates the elapsed time from that time when the opening of the door 200 is detected by the detector 69. When the elapsed time calculated as described above reaches the preset time in the memory unit 67, the controller 64 controls the driving unit 61 to fix the door 200. According to this, when a certain time passes in the open state of the door 200 can be automatically fixed.

On the other hand, the switch unit 65 is for transmitting the operation signal corresponding to the user's operation for the user to release the fixing of the door 200 to the control unit 64. When the operation signal described above is input, the control unit 64 restarts the driving unit 61 to release the coupling of the fixing groove 16d and the fixing rod 63. As a result, the fixing of the piston 18b is released, and the piston 18b is moved by the elastic restoring force of the spring 20 so that the door 200 is closed. The switch unit 65 may be configured in various forms. That is, the switch unit 65 may not only be installed on the door 200 in the form of a push switch or a dial switch to enable the user's operation, but also apply an external force to the door 200 by a predetermined size or more to close the door 200. If it acts it can be configured in the form of a torque limiter that can detect this and transmit the operation signal to the control unit (64). In this case, the size of the external force is preferably set to a size larger than the elastic restoring force of the spring 20 acting in the closing direction of the door 200 by the door closer 50, the reference size is set to a memory unit ( 67 is preferably set.

According to the door fixing unit 60 according to the present embodiment configured as described above, the door 200 can be easily fixed / unlocked even without the cumbersome direct manipulation of the conventional door stopper 100 (see FIG. 1). Will be. In addition, since the door 200 may be installed integrally with the door closer 50 which is generally installed to automatically close the door 200, the inconvenience of installing a separate door stopper 100 (see FIG. 1) may be eliminated. .

5 and 6 show a door fixing device according to a second embodiment of the present invention. Referring to this, the door closer 70 according to the present embodiment includes first and second door closers 71 fixed to the door 200 and first and second doors connecting the door closers 71 to a door frame (not shown). And link members 70b and 70a. The door closer body 71 includes a housing 75 having a cylinder for receiving the interference fluid F therein, and a piston 71a reciprocating along the direction of an arrow E (see FIG. 6) inside the housing 75. ), A rack 75a provided on the outer circumferential surface of the piston 71a, a pinion 74 installed to engage the rack 75a and rotatable along the direction of the arrow a (see FIG. 6), and the second link member 70a. ) Is connected to the rotation shaft 73 for rotating the pinion 74, and a spring 76 for elastically biasing the piston (71a). The structure of the door closer 70 is that the piston 71a is moved by the pinion 74 directly connected to the rotation shaft 73 when the door 200 is opened to compress the spring 76, and the rotation shaft ( 73 is connected to the door frame (not shown) through the plurality of link members 70a and 70b, and a through passage 22b of the embodiment described above with a through hole penetrating the central portion of the piston 71a (see FIG. 3). There is a difference in that it replaces. However, in the door closer 70 according to the present embodiment, the piston 71a is restored by the elastic restoring force of the spring 76, and the basic portion that interferes with the movement of the piston 71a by using the viscosity of the interference fluid F is provided. Operation is similar to that of the first embodiment, so detailed description of the door closer 70 is omitted here.

On the other hand, the door fixing unit 80 according to the present embodiment includes a drive unit 81 and a fixing rod 83, similar to the previous embodiment, the fixing rod 83 through the through hole (71b) the housing ( It is possible to enter in the direction of arrow D (see Fig. 5) to the inside of 75). Accordingly, when the fixing rod 83 is inserted into the door closer main body 71 and engaged with the pinion 74, the rotation of the piston 71a and the rotational degree of the rotation shaft 73 are suppressed by the rotation of the pinion 74. It is suppressed and fixed to the door 200. Here, the fixed rod 83 may be configured to engage the rack (75a). Since the driving unit 81 configured as described above can be controlled in the same manner as in the previous embodiment, detailed descriptions related to the control of the driving unit 81 will be omitted.

On the other hand, the door fixing device according to the present invention is not necessarily limited to the case of the embodiments as described above. As long as the door can be fixed by stopping the operation of the door closer in conjunction with the opening of the door, it can be configured in any manner different from the above-described embodiments. For example, even if the door fixing unit is configured to include a valve for controlling the bypass flow path provided in the door closer and a drive unit for selectively operating the valve according to an external input signal, it is a matter of course that the piston can be guided. .

According to the present invention as described above, the user can eliminate the inconvenience that can be fixed / unlock the door by manual operation of the conventional door stopper. In addition, since it can be configured as a part of the door closer is generally installed, the same function as the installation of the conventional door stopper can be implemented when the door closer is installed, so that the door can be easily installed.

While the invention has been shown and described with respect to preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that various changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, such appropriate changes, modifications, and equivalents should be considered to be within the scope of the present invention.

Claims (9)

delete delete A door configured to open and close the door in a door frame installed at the door; A piston which moves in response to the opening of the door, guides the movement of the piston, and when the piston is moved in response to the opening of the door, the piston is elastically biased to press the door toward the entrance and close the door. A door closer main body installed in any one of the door frame and the door, the cylinder including a cylinder having a restoring means, a rack formed on the cylinder, and a pinion engaged with the rack and rotating in conjunction with the rotation of the door to move the piston. A door closer comprising: And A fixing rod installed in the door closer body to selectively fix any one of the pinion and the rack, and the fixing rod being fixed to the pinion and the rack to fix the piston when the door is opened. A door fixing unit including a driving unit for moving one to be fixed, a detecting unit detecting whether the rotation is stopped when the door is opened, and a control unit controlling the driving of the driving unit in response to a detection signal of the detecting unit; of Including the door lock. A door configured to open and close the door in a door frame installed at the door; A piston which moves in response to the opening of the door, guides the movement of the piston, and when the piston is moved in response to the opening of the door, the piston is elastically biased to press the door toward the entrance and close the door. A door closer including a cylinder having a restoring means, the door closer main body having a bypass flow path through which an interference fluid is bypassed when the piston moves; And A valve for selectively opening and closing the bypass flow passage, a drive unit for operating the valve to close the bypass flow passage to fix the rotation of the door in the open state, the rotation is stopped in the open state A door fixing unit including a detecting unit for detecting and a control unit for controlling driving of the driving unit in response to a detection signal of the detecting unit; Including the door lock. delete The method according to claim 3 or 4, The door fixing unit includes a switch unit for transmitting an operation signal by the user's operation to the control unit, The control unit, the door lock device, characterized in that for controlling the drive unit to release the rotation of the door by releasing the fixing of the piston when the operation signal is input. The method of claim 6, And the switch unit detects an external force acting on the door in a direction of closing the door, and transmits the operation signal to the controller when the external force is greater than or equal to a predetermined size. The method of claim 6, And the switch unit is one selected from a push switch and a dial switch installed in the door. The method according to claim 3 or 4, The door fixing unit includes a timer that calculates an elapsed time after a detection signal indicating that door rotation is stopped in the detection unit is input. And the control unit controls the driving unit to fix the piston to fix the door when the door is stopped when the door is opened for a predetermined elapsed time.

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