KR20030006331A - An automatic open and shut apparatus for a door of the passenger car - Google Patents

Abstract

PURPOSE: An apparatus for automatically opening/closing a car door is provided to improve a stability and convenience by preventing the car door from automatically closing by a self-weight of a leaf of the car door when a car parks or stops at an upside road. CONSTITUTION: A motor(1) drives a pinion(3). A stopper(41) set a limitation of opening of a door leaf. A bracket(5) fixes the motor(1), the pinion(3) to a cross wall at an inside of the door leaf. A control box includes a relay and a delay circuit. A slop surface is formed at an upper surface of a rack(4) in a direction to which a door open. A projection is formed at an end of the slope surface in a direction to which the door closes. A brake device(10) includes a brake pad(11), an elastic member(12), and a brake cap(13). The brake pad(11) slides on the upper surface of the rack(4). The elastic member(12) presses the brake pad(11). The brake cap(13) fixes the brake pad(11) and the elastic member(12) to the bracket(5).

Description

An automatic open and shut apparatus for a door of the passenger car}

The present invention relates to an automatic opening and closing device for a passenger car door, and more particularly, a motor using a power source held in a vehicle drives a pinion through a reducer, and hinges one end of a rack engaged with the pinion to the vehicle body. Passenger car door opening and closing device for automatically opening and closing the door, the door being opened by the locking device and the motor power to prevent the door from closing by itself when the vehicle is parked on the back road. The present invention relates to a passenger car automatic opening and closing device having a shock absorbing device for reducing a shock generated when closing and a waterproofing means for preventing flooding and freezing, and an improved support structure of a gear shaft in a reduction gear.

Conventional techniques related to automatic opening and closing devices for passenger cars include registered utility models 003627 (1992.06.01), 005974 (1992.08.27) and 006750 (1993.10.06).

In the conventional automatic door opening and closing device for passenger cars, the driver who gets on and off the vehicle is dependent on only the friction force between the gears as a means of preventing the vehicle from closing itself by the weight of the door when the door is opened on the ramp. To keep the door open for safety, the motor-drive switch had to be operated again and again.

As a result, the component parts such as the motor and the reducer are excessively applied to reduce the overall durability of the product, and the inconvenience of the operation of the switch is inconvenient for the driver using the switchgear. In particular, the continuous motor drive to prevent the door from being closed due to its own weight is particularly stressing the reducer, so that the bushing supporting the gear shaft in the reducer is abnormally worn by the unbalanced load or the deformation of the panel bracket or the gear shaft in which the bushing is press-fitted. It caused the gap and the operation joint which resulted.

In addition, since the motor vehicle is operated until the door is fully opened immediately according to the prior art, the momentary force applied to the door and the vehicle body when the door is stopped by a stopper installed at one end of the rack is driven by the motor. Inertia by the weight of the door is added to the durability of the automatic opening and closing device, and the passengers using the vehicle has a disadvantage that gives a surprise or unpleasant due to the improper operation.

On the other hand, as another cause of shortening the life of the conventional automatic car door opener according to the prior art, water entering the door by rain or snow or when washing the windshield infiltrate the automatic door opener, resulting in the deterioration of the applied lubricating grease. When it causes excessive wear or freezing in the winter season (동) in the morning or the temperature drops a lot, even if the operation of the motor switch to the door opening direction, the operation was severely damaged and the drive motor was damaged.

In order to solve the above problems of the prior art, the present invention, when the door is fully opened or closed when the door is completely opened or closed without the artificial weight of the door, Finding a means to reduce the impact force generated and a means to improve the durability of the reducer within a range that does not significantly change the existing automatic switchgear,

It is a technical object of the present invention to achieve a waterproof means for preventing the water entering the window glass is not introduced into the automatic opening and closing device.

1 is an exploded perspective view of a passenger car door opening and closing device according to the present invention

Figure 2 is a front view of the automatic car door opening and closing device according to the present invention

Figure 3 is a plan view of the automatic car door opening and closing device according to the present invention

4 is a front view of a rack in a passenger car door opening and closing device according to the present invention;

Figure 5 is a front view of the brake device in the automatic car door opening and closing device according to the present invention

Figure 6 is a block diagram of the operation of the power cutoff device in the automatic car door opening and closing device according to the present invention

Figure 7 is a circuit diagram of a control box in the automatic car door opening and closing device according to the present invention

<Description of the symbols for the main parts of the drawings>

1 motor 2 reducer

3 pinion 4 rack

5 Bracket 6 Waterproof Cover

7 Control Box 11 Brake Pads

12 elastomer 13 brake cap

21 Reducer Housing 22 Reducer Cover

23 Pinion Shaft 24 Bush A

25 Bush B 26 Dowel Pins

31 Power Off Switch 32 Door Open Warning Light Switch

41 Stopper 41a Rubber Damper

41b Pin 42 Slope

43 Jam Jaw (Slope) 50 Water-resistant O-Ring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening and closing device for a passenger car door, in which a motor (1) driving forward and reverse by a motor (remote) switch (not shown) is used as a power source held in a vehicle. A stopper 41 for driving the pinion 3 and engaging the pinion so that one end of the rack 4 reciprocating according to the rotational direction of the pinion is hinged to the vehicle body and the other end is set to limit the opening of the door. In the passenger car door automatic opening and closing device comprising a bracket (5) for fixing the drive motor, reducer, pinion, etc. to the partition wall inside the door and a control box (7) made of a relay and a delay circuit, etc. ,

A locking device to prevent the door from closing by itself due to its own weight when the vehicle is parked on the climbing road, and a shock absorber and flooding to reduce the impact generated when the door is fully opened or closed by the motor power. The present invention relates to a passenger car automatic opening and closing device having a waterproof means for preventing icing and improving the structure of the gear shaft support in the reducer, thereby greatly improving durability, quietness, and reliability of mechanism operation.

1, 2 and 3 is an exploded perspective view, front view and a plan view of a passenger car door opening and closing device according to the present invention, Figure 4 is a front view of a rack (rack) in the passenger car door opening and closing device according to the present invention, 5 is a front view of the brake device, FIG. 6 is an operation block diagram of the power cutoff device, and FIG. 7 is a circuit diagram of the control box.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the conventional car door automatic opening and closing device, the motor switch is operated by the driver's sense, so that the motor switch remains on for a very short time, but immediately after the door is fully opened. Since the door in the rotational motion hits the stopper 41 in a state in which the inertia force due to its own weight is added to the driving force of the motor, the silent operation could not be performed. Even if the stopper is provided with a rubber damper 41a, the automatic opening and closing is performed. Since each component of the device and the door and the body are subjected to a strong impact force acts as a cause of deterioration of durability, in order to reduce the impact force, only the inertia force is cut off the power applied to the motor before the door is fully opened. To work quieter operation is possible, and this principle The same applies.

When the vehicle stops on the climbing road, the closed door by itself will not only be inconvenient for passengers who get on and off the vehicle, but also directly related to safety accidents, especially for children who lack judgment or the elderly who are uncomfortable. It is related.

Therefore, in the present invention, as shown in Figure 4 until the door is opened by a predetermined angle, the thickness is the same as the conventional rack, a certain slope before the door is fully opened, the slope inclined to the upper surface of the rack (42) And the brake pad 11 and the elastic body 12 and the brake as shown in FIG. 5 and the rack 4 having a steep slope formed to act as a kind of locking jaw 43 at the end of the inclined surface. A power cut-off switch 31 which cuts off the power of the motor 1 by contacting the brake device composed of the cap 13 and the upper surface of the bracket 5 to cut off the power of the motor 1; and a door open warning light switch installed in the vehicle. It provides an opening and closing device characterized in that it comprises a locking device and an impact relief device consisting of (32) and the control box (7).

The brake is installed on the upper surface of the bracket (5), the brake pad 11 for sliding the upper surface of the rack and an elastic body for pressing the pad at a constant pressure when the brake pad slides on the inclined surface (42) 12) and the brake cap 13 having the brake pad and the elastic body embedded therein and fastening means for fixing the cap to the bracket 5.

First, the brake device, the power cutoff switch 31 and the door open warning light switch 32 according to the present invention will be described for the action of alleviating the impact when the door of the passenger car is opened.

When the door is opened by a motor drive and the brake pad 11 sliding on the upper surface of the rack is made to climb along the slope 42 formed gently in the opening direction, the elastic body 12 mounted in the brake cap 13 is mounted. ), The brake pad 11 also receives the repulsive force of the same size from the elastic body and thus presses the upper surface of the rack, thereby acting as a resistive force to rotate the door, thereby lowering the door opening speed.

On the other hand, before the brake pad 11 passes the apex of the inclined surface, the power cut-off switch 31 installed on the upper surface of the bracket 5 contacts the side surface of the stopper 41 so that the signal is shown in FIG. In the same procedure it is processed in the circuit in the control box 7 to cut off the power of the drive motor (1).

In the above-described operation, the brake pad 11 sliding on the inclined surface 42 of the rack presses the upper surface of the rack in a section before the door opening is almost completed. The power applied to the vehicle is cut off by the power cutoff switch 31 so that only the inertial force of the rotary motion remains until it hits the stopper 41 through the vertex of the inclined surface, and is caused by the rubber damper 41a. Since the shock is absorbed, the door opening operation is completed very smoothly.

In this case, the brake pad 11 combines a plurality of spacers having different thicknesses or spacers having the same thickness in order to adjust the pressing force of the upper surface of the rack, and in the case of reinforcing the pressing force, the bottom of the cap in the brake cap 13. And the elastic body 12, and in the case of relieving the pressing force is to be sandwiched between the brake cap and the bracket (5).

The following describes the power cut when the door is closed.

Unlike the case of opening the door, the door is closed around the door and the door frame, unlike the case of opening the door. Will not.

Therefore, it is possible to achieve the desired effect by simply shutting off the motor power at a certain time rather than taking any additional means to reduce the speed of the closing door.

The present invention focuses on the fact that each door is provided with a door opening warning light switch 32 for warning the driver of the door opening, and utilizes the door opening warning light switch rather than having a separate switch in the automatic opening and closing device. Therefore, even if the driver continues to operate the motor drive switch, the motor power is cut off almost simultaneously with the door closing.

FIG. 6 is a block diagram illustrating an operation block for shutting off the driving motor when the door is opened / closed in the passenger car door opening and closing device according to the present invention.

Even when the vehicle is parked on an uphill road, after the door is fully opened, the function of preventing the door from closing by itself is explained unless the driver drives the motor to close the door.

As described above, the inclined surface 42 is formed on the upper surface of the rack in the opening direction, and the steep slope 43 is formed in the direction in which the door is closed at the end of the inclined surface. When the brake pad 11 tries to close by self, it prevents the brake pad 11 from being caught on the steep slope 43 so that the steep slope 43 acts as a locking jaw that prevents the progress of the steep slope 43 in the door closing direction due to its own weight. It is made.

Here, it is necessary to appropriately adjust the inclination of the steep slope, which prevents the closing due to its own weight, but when the driver drives the motor in the closing direction, the driving force of the motor is added to the force due to the weight of the door so that the driving force of the two forces is combined. Closing by means to make it possible.

The following is a description of the improvement of the support structure of the reduction gear axle in the reducer in order to improve the durability of the conventional car door automatic opening and closing device.

The difference between the motor rotation speed and the door opening speed is also determined by the gear ratio of the rack (4) and the pinion (3), but more fundamentally, it is necessary to adjust the ratio of the motor rotation speed and the pinion rotation speed and increase the rotation moment. In the reducer (2).

The reduction gear 2 according to the prior art (Registration Utility Model No. 005974) has a panel bracket therein separate from the reduction gear housing 21 so that the shaft of the reduction gear is supported by a bushing mainly embedded in the panel bracket. .

However, the speed reducer also reduces the rotational speed of the motor to a certain ratio, but it also plays a role of transmitting the rotational force of the motor to overcome the weight of the door through the gear, so the strength of each gear protruding from the gear is also important. It is also important to fully support the axis that is the center of rotation when the gears engage with each other to meet the transmission load.

For the reason mentioned above, in the case of the speed reducer according to the prior art, the panel bracket is too thin to use a bushing embedded in the panel bracket long enough. As a result, the load cannot be effectively distributed when the load is concentrated in the bushing. There was a problem that a change occurred in the center distance between the gears and an operation joint occurred due to problems such as abnormal abrasion or deformation of the panel bracket itself.

Passenger car door automatic opening and closing device according to the present invention eliminates the panel bracket to increase the thickness of the reducer housing 21 and the reducer cover 22 to supplement the conventional problems, and the bush and the support is increased in the housing and cover than the conventional While directly inserting the A (24) and the bush (B 25), the reducer housing (21) and the reducer cover (22) are characterized in that the fitting pins (26) are installed.

In addition, in the conventional automatic car door opening and closing device in the rain or car wash water flowing in the window flows into the interior of the door is discharged through a drain (not shown) formed on the bottom of the door, the top of the opening and closing device Water that flows into the reducer through a gap between the pinion shaft 23 and the bush A 24 pressed into the gearbox housing, and the lubricating grease is deteriorated. It became.

Accordingly, in the present invention, as shown in FIG. 2, a groove is formed toward the upper end of the inner surface of the bush A 24 supporting the upper side of the pinion shaft 23, and a waterproof O-ring 50 is inserted therein. By providing a waterproof cover 6 which can cover the automatic opening and closing device as a whole to prevent the problems described above occur, the overall durability and the reliability of the operation greatly improved.

The application of the automatic opening and closing device according to the present invention is not limited to a passenger car, but the door is hinged to the door frame or the vehicle body and can be applied to a door-type door having a constant width inside the door.

As described above, the passenger car door opening and closing device according to the present invention improves the safety and convenience of the passenger car by preventing the door from closing by the weight of the door even when the vehicle stops on an uphill road, when the door is opened and closed. By mitigating the shock of the car, it enables quiet operation and improves the riding comfort.It also supports the gear shaft installed inside the reducer more firmly and prevents water from seeping into the automatic door opening and closing system of the passenger car to prevent deterioration of lubricating grease and freeze in winter. It is a very useful invention that greatly improves the durability and reliability of the operation of the mechanism by preventing the damage.

Claims (4)

A motor (1) driving forward and reverse by a remote switch using a power source held in the vehicle as a power source drives the pinion (3) through the reducer (2), and engages with the pinion so that the pinion rotates. One end of the rack (4) reciprocating along the hinge is fixed to the vehicle body and the other end is provided with a stopper (41) for setting the limit of the opening of the door, the drive motor, reducer, pinion and the like fixed to the partition wall inside the door In the passenger car door automatic opening and closing device comprising a bracket (5) and a control box (7) made of a relay and a delay circuit, A rack (4) having a gentle slope (42) formed on the top of the rack in a direction in which the door is opened, and a locking jaw (43) formed in the closing direction of the door at a portion where the slope ends; and a brake sliding with the top of the rack And a brake device (10) comprising a pad (11) and an elastic body (12) for pressing the pad, and a brake cap (13) for fixing the brake pad and the elastic body to the bracket. Switchgear. A motor (1) driving forward and reverse by a remote switch using a power source held in the vehicle as a power source drives the pinion (3) through the reducer (2), and engages with the pinion so that the pinion rotates. One end of the rack (4) reciprocating along the hinge is fixed to the vehicle body and the other end is provided with a stopper (41) for setting the limit of the opening of the door, the drive motor, reducer, pinion and the like fixed to the partition wall inside the door In the passenger car door automatic opening and closing device comprising a bracket (5) and a control box (7) made of a relay and a delay circuit, A power cut-off switch 31 installed on an upper surface of the bracket to cut off power of the motor 1 by contacting the stopper 41; and a door open warning light switch 32 installed in a vehicle; Passenger car door automatic opening and closing device. According to claim 1, It is installed on the upper surface of the bracket to shut off the power of the motor (1) by contacting the stopper (41); and the door opening warning light switch (32) installed in the vehicle; Passenger car door automatic opening and closing device comprising a. 4. The bracket (5) according to any one of claims 1 to 3, wherein the reduction gear housing (21) and the reduction gear cover (22) are provided with bushes (24), (25), dowel pins (26), and dosing holes. Passenger car door automatic opening and closing device characterized in that it is provided with a waterproof O-ring (50) between the waterproof cover (5) and the bush (24) and the pinion gear shaft (23).