JPH0336387A - Opening device for power door - Google Patents

Abstract

PURPOSE:To open and close a door at a speed and angle desired by a person opening the door by opening and closing the door via a computer correspondingly to a value of pressure exerted on a handle portion and sensed by a pressure sensor. CONSTITUTION:A pressure sensor 8, 9 is installed between two semi-circular plates 11 each mounted to a door handle 2, and the handle 2. A computer 4 is provided for processing a pressure value sensed by the pressure sensor 8, 9 and transmitting the signal to a motor 3. To open (or close) the door 1, a person touches the handle 2 and then the pressure sensor 8 (9) senses the pressure and transmits an electric signal corresponding to the pressure value to the computer 4. The computer 4 processes it in several steps and converts it into a voltage or current and transmits the signal to a motor 3, for opening (or closing) the door 1 at a desired speed and angle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power door opening/closing device, and more particularly to a device that can open/close a door at the degree or speed desired by the person opening/closing the door.

[Conventional technology]

An example of a conventional power door opening/closing device generally called an automatic door is shown in FIG.

In the figure, 3■ is the door, 32 is the doorknob or door handle, 33 is the motor, 34 is the push button, and the door 31 is
When opening and closing the door 31, a signal from a push button 34 (or a sensor) installed near the door 31 is electrically processed to drive the motor 33 to open and close the door 31.

[Problems to be Solved by the Invention] The conventional automatic door device as shown above simply fully opens and closes the door at a set speed, but does not open or close the door at the speed and degree desired by the person opening/closing it. Because of this, the door does not open and close as expected by the person opening/closing it, which can be inconvenient and may cause malfunctions, so the door should operate in a manner that reflects the intention of the person opening/closing it as much as possible. It is desirable to be able to do so.

[Means to solve the problem] Above! l! In order to solve this problem, the present invention includes a pressure sensor that is provided in the handle portion of the door and that senses the pressure value applied to the door handle when the door is opened and closed by the hand of the person opening and closing the door; A power door opening/closing device is provided, which includes a computer that processes a corresponding electric signal, and a door opening/closing motor that rotates to open and close the door based on a control signal from the computer.

[Function] When the person opening and closing the power door mentioned above touches the door handle, an electrical signal corresponding to the pressure applied to the handle is generated in the pressure sensor, which is sent to the computer and processed. The resulting control signal is sent to the door opening/closing motor to rotate the motor and open/close the door.

(Example) An example of the present invention will be described based on the drawings. Fig. 1 is a front view of a door l equipped with the power door opening/closing device of the present invention, Fig. 2 is a top view thereof, and Fig. 3 is a sectional view of the handle portion of Fig. 2, and the door opening/closing device of Fig. 0 is shown. has a door opening/closing mechanism that can only be opened from the outside. A door handle 2 for opening and closing is attached to the door l, and two pressure sensors 8.9 are embedded in the handle 2 as shown in FIG. Reference numeral 11 denotes two semicircularly bent plates attached to the handle 2, and a pressure sensor 89 is installed between the plate 11 and the handle 2. When the handle 2 is pulled, it is pushed by the plate 11 and the No. 1 pressure sensor 8 reacts, and when the handle 2 is pushed, it is pushed by the plate 11 on the other side and the N002 pressure sensor 9 reacts. No. 1 arm 6 is attached to the shaft of motor 3,
No. 2 The door l is opened and closed via the arm 7. In the figure, 4 is a computer, 5 is a door hinge, and l
O is an electric wire.

When the person opening/closing the door tries to open the door l, the N091 pressure sensor 8 senses the pressure. At that time, the No. 1 pressure sensor 8 sends not only on/off information but also the strength as information to the computer 4. No, 1 on computer 4
Information (P) from the pressure sensor 8 is divided into n stages and a signal is sent to the motor 3 in the form of voltage or current. For example, in the case of n-100, P=O means OFF, and P-99
When is ON, the voltage or current is at its highest. The voltage or current when P=1 is the minimum. The motor 3 continues to rotate as long as P of the N001 pressure sensor 8 is not zero, that is, while sensing the pressure.

If the person opening/closing the door tries to close the door, no.

The two-pressure sensor 9 senses the pressure, and the motor 3 is operated in the same manner as when the door 1 is opened, and the door 1 is closed.

However, in this case, the direction of the voltage or current sent to the motor 3 is opposite to that between the doors 1.

Even if the pressure sensor senses pressure only momentarily, the door will open (or close) by dt-P. Here, dt is a scheduled minute time. In other words, if you want to fully open the door (or fully open it), you can either press the door handle hard for a short time, or press it weakly for a long time.
When the pressure sensor stops sensing anything (that is, P=O),
The motor will stop and the door will also stop in place. If a current exceeding the specified value flows through the motor during opening/closing, it is assumed that the door is fully open, fully closed, or has hit an obstacle, and the motor will stop.

According to the above embodiment, the force of the person opening/closing is picked up by a pressure sensor, and the information is electrically amplified and processed by a computer, making it possible to open/close the door at the required speed and at the required angle. Therefore, the door can be opened and closed easily and safely according to the operator's will without any frustration.

Next, as another embodiment, an example in which this door opening/closing device is applied to an automobile door will be shown. FIG. 4 shows an example of a car door to which the device is attached, and FIG. 5 is a sectional view of this type of door with the door opening/closing device of the present invention attached. In the figure, 21 is a door, 22 is a door handle, 23 is an armrest, and 24 to 27 are pressure sensors. In this case, four pressure sensors are required for each door 21. Two are N001 pressure sensors 24 near the outside door handle 22.
and No, 2 pressure sensor 25, the latter two are inside the door + No, 3N001 pressure sensor 244 pressure sensor 27
and attach it. It is preferable to attach the sensor to a part that is often touched by the person opening/closing the door. As a result, even children and the elderly can easily open and close automobile doors, which conventionally feel heavy, and accidents that often occur when opening and closing doors can be prevented.

The key point of the present invention is that two or more pressure sensors are used in the door handle as sensors for the door opening/closing device. As mentioned above, the pressure sensor signal is not only used to turn on and off, but the pressure value itself is also treated as information.

Therefore, it is necessary to pay sufficient attention to the position where the pressure sensor is installed.

(Effects of the Invention) Unlike conventional power door opening/closing devices, the device of the present invention makes it possible to control the opening/closing speed and position of the door, and allows the door to be opened at the speed and position as desired by the door opener/closer. Can be opened and closed. This reduces the psychological burden on the person opening/closing the door, prevents accidents due to malfunctions, and is beneficial in terms of safety.

[Brief explanation of drawings]

1 to 3 show one embodiment of the present invention, FIG. 1 is a front view showing the entire configuration of a power door opening/closing device, and FIG.
The figure shows a top view of Fig. 1, Fig. 3 shows a detailed cross-sectional view of the handle part in Fig. 2, Fig. 4 and Fig. 5 show other embodiments, and Fig. 4 shows this device. FIG. 5 shows a sectional view of the door of the type shown in FIG. 4 with the present device attached thereto. FIG. 6 shows an example of a power door opening/closing device according to the prior art. l...door, 2...door handle, 3...
Motor, 4... Computer, 8.9... Pressure sensor. Figure Figure Figure A Figure

Claims (1)

[Claims] 1. A pressure sensor that is installed in the handle of the door and detects the pressure value applied to the door handle when the door is opened and closed by the hand of the person opening and closing the door, and a computer that processes an electrical signal corresponding to this pressure value; A power door opening/closing device comprising: a door opening/closing motor that rotates to open/close the door based on a control signal from a computer.