JP4085922B2 - Garage door - Google Patents

Description

  The present invention relates to a garage door that opens a doorway of a garage by driving a door body upward.

Conventionally, in a garage door that opens a garage doorway by moving the door body above the garage doorway, for example, the door is closed with a substantially vertical door body and the door is positioned above the doorway. A flip-up type garage door is known in which the body is positioned substantially horizontally and the entrance is opened (see, for example, Patent Document 1). A flip-up type garage door is generally provided with a drive motor that rotatably supports the other end of an arm, one end of which is connected to the door body, rotatably supported on the column, and the arm is mounted on the column. In order to maintain the door in an open state by urging in the upward rotation direction, the door body is configured to be provided with an urging means for maintaining the door at an upper position of the door.
JP-A-6-93784

  By the way, in the flip-up type garage door, for example, when the urging function of the urging means to the door body is reduced or the urging means is broken, or the door body in a state where the doorway is opened If the door is exposed to strong winds, heavy items such as laundry are hung, or animals are riding on the door, the door cannot be maintained at the upper position of the doorway by the biasing means. Might have accidentally blocked the doorway. In particular, if the door body unexpectedly descends when passing under the door body in a state where the vehicle entering and exiting the garage has jumped up, the door body will come into contact with the car, causing damage to both the garage door and the car. There is a risk of letting go.

  That is, when the urging means is broken or its function is reduced, the urging force applied to the door body by the urging means deteriorates, and at the next moment when the door body is moved upward by the drive motor, the door body Falls by its own weight. The deterioration of the urging means is caused when the urging means is constituted by a gas spring, when the gas pressure in the cylinder is lowered or out of gas due to a low temperature environment, and when the urging means is constituted by a coil spring. This may be caused by coil breakage, loose mounting, or damage. Further, when the door body with the doorway open is exposed to strong winds, heavy items such as laundry are hung, or animals are on board, the biasing means for maintaining the door body above the doorway. Since a load larger than the urging force is applied to the door body, the door body descends and blocks the entrance / exit.

  The present invention has been invented in view of the above-described conventional problems, and the door body is lowered freely even when the urging means does not function or an external force is applied to the door body with the doorway opened. Thus, an object of the present invention is to provide a garage door that does not block the entrance / exit.

  In order to solve the above problems, a garage door according to the present invention is a drive motor that rotatably supports the base 2 of the arm 2 whose tip is connected to the door body 1 to the support column 3 so as to rotate the arm 2 up and down. 4 is provided in the support column 3 and includes an urging means for urging the arm 2 in the upward rotation direction. The door 1 is closed in a substantially vertical state, and the door 1 is substantially horizontal above the entrance. In the garage door in which the door body 1 is maintained at a position above the doorway by urging of the urging means in order to keep the doorway open, and the door body 1 is opened to the doorway. And a detecting means for detecting a state where the position is lowered by a predetermined angle from the position, and a control means for receiving the detection signal of the detecting means to re-drive the drive motor 4 so as to rotate the arm 2 upward. Features.

  According to this, it is possible to detect the state in which the door body 1 is lowered by a predetermined angle from the opening position of the entrance / exit by the detection means, and the drive motor 4 is re-started so as to rotate the arm 2 in response to the detection by the control means. Even if the door body 1 descends from the opening position of the doorway when the urging means does not function or an external force is applied to the door body 1 with the doorway opened due to strong wind or the like. The door body 1 can be returned to the opening / closing position of the doorway by re-driving the drive motor 4 that rotates the arm 2 upward, and the door body 1 can be prevented from falling down and blocking the doorway. is there.

  Further, the detection of the detection means is performed within a predetermined time from the time when the door 1 opens the door of the garage, and the drive motor 4 is re-driven, and after the predetermined time has elapsed, the drive motor 4 is re-driven. It is also preferable to set the control means so that it is not performed. According to this, it is possible to prevent the door body 1 from closing the doorway by re-driving the drive motor 4 as needed only within a predetermined time from the time when the door body 1 opens the doorway of the garage. If the predetermined time is set to the time required to leave the car from the garage, the doorway can be kept open at least until the car leaves the garage, that is, the garage door can be operated efficiently. It can be secured.

  In addition, there is provided a counting means for counting the number of times the drive motor 4 is re-driven within a predetermined time from the time when the door 1 opens the doorway of the garage, and the user when the counting number of the counting means exceeds a predetermined number. It is also preferable to provide notification means for notifying the user. According to this, it can be determined that the number of times the drive motor 4 is redriven within a predetermined time from when the door 1 opens the doorway of the garage, that is, it can be determined that the garage door has failed. Since this determination can be notified to the user by the notifying means, early repair of the garage door can be promoted to ensure a safe operation of the garage door.

  In the present invention, as described above, the drive motor can detect the state in which the door body is lowered by a predetermined angle from the opening position of the entrance / exit by the detection means, and the control means receives the detection of the detection means to rotate the arm upward. Even if the door body descends from the opening position of the doorway when external force is applied to the door body that has opened the doorway by strong wind etc. The door body is returned to the open position of the doorway by re-driving the drive motor that rotates the arm upward, and the door body is prevented from falling down and blocking the doorway. Car contact is prevented.

  The garage door of the example of embodiment of this invention is shown in FIGS. In this garage door, the door 1 is closed by a substantially vertical door body 1 as shown in FIG. 2, and the door 1 is positioned substantially horizontally above the door opening as shown in FIG. 3 so as to open the door. The base 3 of the arm 2 whose tip is connected to the door body 1 is pivotally supported on the column 3 so that the arm 2 can be driven to rotate up and down. A general flip-up type garage door which is equipped with an urging means for keeping the door body 1 in the upper position of the entrance and exit in order to keep the door 2 open by energizing the arm 2 in the upward rotation direction. The door 2 is provided with detection means for detecting a state where the door body 1 is lowered from the opening position of the entrance / exit by a predetermined angle, and the arm 2 is rotated upward in response to the detection signal of the detection means. Control means for causing the drive motor 4 to be re-driven Is characterized in that comprises a. Details will be described below.

  The support columns 3 are provided substantially vertically on both sides of the doorway of the garage. The door body 1 is plate-shaped, and the front ends of the arms 2 are rotatably connected to both width end portions thereof. The pair of arms 2 is provided with a horizontal rotation shaft 5 at the base end thereof, and is pivotally supported by the upper portions of the pair of support columns 3 via the rotation shaft 5 so as to be vertically rotatable. As will be described later, the rotary shaft 5 is connected to the drive motor 4 via a transmission mechanism, and the pair of arms 2 are driven to rotate up and down by the drive motor 4 built in the column 3. A follower arm 6 that regulates the posture of the door body 1 is connected between the support column 3 and the door body 1 via a link 7. Specifically, one end of the link 7 is rotatably supported at a position above the pivot position of the arm 2 of the column 3, and one end of the driven arm 6 is rotatably supported by the other end of the link 7. The other end of 6 is pivotally supported at a position below the arm connection position of the door body 1 so as to be rotatable. When the arm 2 is rotated, the driven arm 6 cooperates, and when the door 1 closes the entrance, the arm 2 protrudes substantially horizontally forward from the support column 3 so that the door 1 is substantially at the entrance of the garage. In a state where the door 1 is opened in the vertical state, the arm 2 protrudes substantially vertically upward from the column 3 so that the door 1 is positioned in a substantially horizontal position above the doorway of the garage. In addition, the operation of ensuring that the door body 1 is maintained in a substantially vertical state during the opening and closing of the doorway during the rotation of the arm 2 is ensured. In this way, the door body 1 does not protrude outward from the doorway during the opening and closing of the garage door, and the door body 1 is moved substantially horizontally above the doorway when the doorway is open. Space saving of the door is achieved.

  The arm 2 is rotationally driven by the drive motor 4. In this example, the arm 2 and the drive motor 4 are connected by the following transmission mechanism. A prismatic lifting body 8 is disposed in the column 3 so as to be movable up and down. Guide rollers 13 that roll on the inner surface of the support column 3 are provided at the upper and lower ends of the lift body 8, respectively, and a stable lifting operation of the lift body 8 inside the support column 3 is ensured. Chain-like racks 9a and 9b extending vertically are provided on two adjacent side surfaces of the lifting body 8 respectively. An arm-side sprocket 10 is attached to the rotating shaft 5 of the arm 2, and the arm-side sprocket 10 is meshed with one rack 9a. A motor-side sprocket 11 is attached to the rotating shaft of the drive motor 4 built in the support column 3, and the motor-side sprocket 11 is engaged with the other rack 9b. Thus, when the drive motor 4 is driven to rotate forward, the elevating body 8 slides upward in the column 3 as shown in FIG. 3, and the rotary shaft 5 and the arm 2 are rotationally driven upward to open the doorway. The door body 1 is raised. On the other hand, when the drive motor 4 is driven in the reverse direction, as shown in FIG. 2, the elevating body 8 slides downward in the column 3, the rotary shaft 5 and the arm 2 are rotationally driven downward, and the door is closed. The body 1 is lowered.

  A gas spring 12 is interposed between the lower end of the support column 3 and the lower end of the elevating body 8. The gas spring 12 has a function of urging the elevator body 8 so as to push it upward. In this garage door, the arm 2 is driven to rotate upward with a small output of the drive motor 4 by the upward movement of the elevating body 8 in response to the urging of the gas spring 12 and the rotational drive of the drive motor 4. Thus, the door body 1 can open the doorway of the garage. In the state where the door 1 is opened and closed, the drive of the drive motor 4 is stopped by the control means described later. At this time, the gas spring 12 is energized so as to balance the weight of the door 1. The door body 1 is maintained at a position above the doorway so as to act on the door body 1 and maintain the open state of the doorway of the garage. In other words, the gas spring 12 functions to maintain the door body 1 at a position above the doorway so as to maintain the open state of the doorway of the garage when the door body 1 opens the doorway. Means. The gas spring 12 functions as a resistance when the door 1 rotates the arm 2 downward to close the entrance and exit, so that the door 1 can be prevented from colliding with the ground of the entrance with impact. Also have. Further, in this example, the gas spring 12 constitutes the urging means, but the urging means can be replaced with a coil spring.

  As the detection means, a rotary position sensor (not shown) attached to the rotating shaft 5 of the arm 2 is employed. This rotary position sensor detects the position of the door 1 by detecting the rotation angle of the arm 2. Moreover, as a control means, the microcomputer control circuit which connects the operation switch of a garage door and controls drive of the drive motor 4 comprises this. A rotary position sensor is connected to the microcomputer control circuit. That is, this microcomputer control circuit is capable of controlling the output of the drive motor 4 while receiving the detection signal of the rotary position sensor and confirming the position of the door 1. Specifically, when the microcomputer control circuit receives an “open” input of the garage door operation switch, the drive motor 4 is driven to rotate forward to open the doorway, and the arm 2 is rotated upward to open the door. When the detection signal of the rotary position sensor that detects that the body 1 has reached the upper limit position is received, the drive of the drive motor 4 is stopped. As described above, in the open state of the garage door with the drive motor 4 stopped, the door body 1 is maintained in the upper position of the entrance / exit with a weight balance by the gas spring 12. Further, when the microcomputer control circuit receives a “close” input of the operation switch of the garage door, the microcomputer 2 rotates the drive motor 4 in the reverse direction to turn the arm 2 downward so as to close the doorway. In this example, a remote control device is employed as an operation switch for the garage door. That is, the antenna 14 provided on the support column 3 is connected to the microcomputer control circuit, and the user operates the operation key of a separate transmission unit to operate the garage door from a place away from the garage door (for example, in the car). Remote operation is enabled.

  By the way, as described above, in the conventional flip-up type garage door, for example, when the urging function of the urging means to the door body 1 is reduced or the urging means is broken, When the open door body 1 is exposed to strong winds, heavy items such as laundry are hung, or animals are on the door body 1, the door body 1 is maintained at a position above the entrance / exit by an urging means. There was a problem that the door 1 could not be continued and the door 1 was lowered and closed the entrance unexpectedly. Even in the flip-up type garage door of this example having the above-described structure, since the moment of the door body 1 is heavily loaded on the gas spring 12 as the arm 2 approaches horizontal, the urging means is urged. If the arm 2 is rotated downward due to a decrease in function or an external force load applied to the door body 1 located above the entrance and exit and approaches a horizontal angle of a certain angle or more, the moment of the door body 1 is biased by the gas spring 12. In this case, the door body 1 cannot be supported, and the door body 1 cannot be lowered, and the entrance / exit is unexpectedly blocked. However, in the flip-up type garage door of this example, the detection means and the control means are provided as shown in FIG. 8, and after the garage door is once opened, the garage door is driven by the cooperation of the detection means and the control means. By performing the control (see the flowchart in FIG. 9), the above problem is solved. In this example, the garage door failure determination and notification thereof, and the operation efficiency of the garage door are improved at the same time. Details will be described below.

  The drive control of the garage door by the cooperation of the detection means and the control means means that when the door body 1 detects a state where the door body 1 is lowered by a predetermined angle from the opening position of the doorway, the rotary position sensor is the rotary position. The control is such that the drive motor 4 is re-driven so that the arm 2 is rotated upward by a microcomputer control circuit as control means in response to a detection signal from the sensor. The state in which the door body 1 detected by the detecting means is lowered by a predetermined angle from the opening position of the doorway is that the rotating shaft 5 of the arm 2 rotates downward and the door body 1 approaches the installation surface of the garage. The height is set within a range in which a general passenger car can be secured below the door 1. By doing so, even when the urging means does not function or when an external force is applied to the door body 1 with the doorway opened by strong wind or the like, even if the door body 1 descends from the door opening position (FIG. 1), the door 1 is returned to the open position of the doorway by re-driving the drive motor 4 that rotates the arm 2 upward (arrow B in FIG. 1). It is prevented from descending and closing the entrance.

  Further, as shown in FIG. 8, timer means is connected to the microcomputer control circuit constituting the control means. This timer means detects the above-mentioned detection only for a predetermined time from when the garage door is opened (when the detection means detects the opened state of the door body 1 or when "open" is input by the operation switch). It has the function to perform drive control of the garage door by cooperation with a means and a control means. If “closed” is input by the operation switch, the drive control of the garage door by the cooperation of the detection means and the control means is completed within a predetermined time set by the timer means, and the door body 1 is lowered. Block the doorway. The microcomputer control circuit is connected to a counting means for counting the number of times the drive motor 4 is redriven within a predetermined time set by the timer means. Further, the microcomputer control circuit is connected with a notifying means for notifying the user when the number of times of re-driving of the drive motor 4 counted by the counting means becomes a predetermined number or more. As the notification means, for example, means for notifying the user with a buzzer (sound), a notification lamp (light), etc., means for notifying the user by opening the door body 1 and the like can be adopted.

  In this example, as shown in the flowchart of FIG. 9, the timer means starts from the time when the garage door is opened, and the detection means and the control means cooperate only within a predetermined time set by the timer means. The drive control of the garage door is performed. That is, until the elapse of the predetermined time, the drive motor 4 that rotates the arm 2 upward by driving control of the garage door by the cooperation of the detection unit and the control unit described above can be redriven as many times as necessary. It is performed, and it is prevented that the door body 1 falls freely and blocks the entrance / exit. Here, the predetermined time is set to a time sufficient for leaving the car from the garage (for example, about 30 minutes). In this way, once the operation switch is "opened" to open the garage, the doorway can be kept open at least until the vehicle is removed from the garage. A situation where the vehicle descends and crashes into a car that is about to leave the garage is avoided. By the way, the number of re-driving of the drive motor 4 is counted by the counting means, and when the counting number of the counting means records a predetermined number or more, the notifying means notifies the user. As described above, the drive motor 4 is re-driven in accordance with the frequency of the lowering of the door body 1, so that the frequency of re-drive of the drive motor 4 is obviously reduced in the function of the urging means. It is considered that an abnormality has occurred (a natural phenomenon in which a gust of wind blows on the door body 1 if the number of times the drive motor 4 is re-driven is about once) is also considered. Here, the predetermined number of times is set to the number of times that it can be clearly determined that the garage door is broken. By doing in this way, abnormality of a garage door can be alert | reported to a user by an alerting | reporting means, early repair of the garage door is urged, and the safe operation | movement of a garage door is ensured. As described above, the notification means can be appropriately adopted. However, for example, if a means for notifying the user by prohibiting the opening of the door body 1 is adopted, the garage door that is in a dangerous state due to failure may be used. It has the advantage that it can be disabled and secure safety. After the predetermined time set by the timer means has elapsed, the garage door drive control by the cooperation of the detection means and the control means (the drive motor 4 is redriven to return the door body 1 to the upper position). That is not done). After the predetermined time has elapsed, the vehicle has left the garage, and it is not particularly necessary to keep the garage open. In this way, in this example, the unnecessary re-driving of the drive motor 4 is suppressed, so that unnecessary power consumption and the number of times of driving of the garage door are reduced, so that the garage door can be efficiently operated and the garage door can be extended in life. ing.

  Note that, as described above, the garage door of the present example is configured such that the door body 1 is rotated from both sides in the width direction of the door body 1 by the drive motors 4 respectively installed in a pair of support columns 3 erected on the side of the entrance of the garage. However, at the same time, each drive motor 4 built in each column 3 is tuned and driven by a synchronizing circuit or the like provided in the control means. This structure is twisted to the door body 1 in the middle of rotation as compared with a structure in which the drive motor 4 is provided only on one of the columns 3 and the door body 1 is rotated only from one side in the width direction of the door body 1. There is an advantage that it is difficult to generate internal stress. That is, the garage door of the present example avoids distortion of the transmission mechanism due to deformation such as torsion that occurs in the door body 1, thereby achieving stable rotation of the wide door body 1. There is little, and product value is raised. In addition, the reinforcing cross member 15 that connects the ends of the pair of arms 2 is disposed so as to extend in the width direction of the door body 1, thereby improving the rigidity of the door body 1 against twisting.

It is explanatory drawing explaining operation | movement of the garage door of the example of embodiment of this invention. It is a partially cutaway perspective view showing the closed state of the garage door. It is a partially cutaway perspective view showing the opened state of the garage door. The closed garage door is shown, (a) is a side view of the vicinity of the door body, (b) is a partial top view of (a), and (c) is a cutaway side view of the vicinity of the column. It is a notch side view seen from the back of a support | pillar same as the above. It is a notch top view of a support | pillar same as the above. The transmission mechanism same as the above is shown, (a) is a side view, and (b) is a top view. It is a block diagram of a control system same as the above. It is a flowchart explaining operation | movement of a garage door same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door body 2 Arm 3 Support | pillar 4 Drive motor 5 Rotating shaft 6 Driven arm 7 Link 8 Lifting body 9a One rack 9b The other rack 10 Arm side sprocket

Claims (3)

  A support motor that pivotally supports the base end of the arm whose tip is connected to the door body so as to rotate freely on the column, and that drives the arm to rotate up and down, is provided in the column, and an urging unit that urges the arm in the upward rotation direction. The door is closed by the substantially vertical door, and the door is opened substantially by positioning the door substantially horizontally above the door, and the biasing means is biased to keep the door open. In the garage door in which the door body is maintained at the upper position of the entrance / exit by means of the garage door, the door body is provided with detection means for detecting a state where the door body is lowered from the open position of the entrance / exit by a predetermined angle, A garage door comprising control means for re-driving the drive motor so as to rotate the door upward.   Control is performed so that the drive motor is re-driven in response to detection by the detection means within a predetermined time from the time when the door opens the garage door, and the drive motor is not re-driven after the predetermined time has elapsed. The garage door according to claim 1, wherein means are set.   In addition to counting means for counting the number of times the drive motor is re-driven within a predetermined time from when the door opens the doorway of the garage, a notification to notify the user when the count number of the counting means exceeds a predetermined number The garage door according to claim 1, further comprising means.

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