KR101716409B1 - Door checker for vehicle - Google Patents

Abstract

The present invention relates to a door checker for a vehicle including a stationary member, a checker arm, and a door checker, wherein the door checker comprises: a rotating unit rotating when a first electrical signal is applied; A converter unit coupled to the checker arm, the converter unit interlocking with the rotation motion of the rotation unit when the second electrical signal is applied, and converting the rotation motion of the rotation unit into linear motion by the checker arm; And a control unit for turning on / off at least one of a first electrical signal applied to the rotation unit or a second electrical signal applied to the conversion unit, wherein the door opening / An automatic opening and closing mode in which the converting unit is interlocked with the rotating motion of the rotating unit when both the electric signal and the second electric signal are turned on so that the first and second electric signals can be moved by the first electric signal, 2 is switched between the manual open / close mode in which the conversion unit is free from the rotational motion of the rotation unit and can move by an external force when the electrical signal is turned off.

Description

[0001] Door checker for vehicle [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door checker for an automobile, and more particularly, to a door checker for an automobile which allows an opening / closing mode of a door to be changed between an automatic opening and closing mode and a manual opening and closing mode by an electrical signal.

In the automobile, when the door is being loaded / unloaded through the door or when the object is loaded / unloaded, the door must be stably maintained in its open state to facilitate the loading / unloading and cargo operations. However, the door hinge simply keeps the door , The door can only be opened and closed, and does not serve to maintain the door open at a predetermined angle in the opening / closing path of the door.

Therefore, in the automobile, a door checker device is provided at the center of the front side of the inner panel of the door so that the door is kept stopped at two or three points in its opening / closing path.

Such an automotive checker device generally includes a fixing member attached to a vehicle body side of a door of an automobile, a checker arm hinged to one end of the fixing member and rotating and positioned between the door and the vehicle body, And a door checker which receives the checker arm and slides along the longitudinal direction of the checker arm to keep the door stopped at a certain point on the movement path.

The checker device includes a base bracket having an inner space of a predetermined size formed therein, a slider housed inside the base bracket, a spring positioned at one side of the slider, and a base cover coupled to one side of the base bracket .

The operation of the conventional checker of a door for an automobile according to the above configuration is as follows.

When the door is opened, the position of the door changes. As the position of the door changes according to the opening state of the door, the door checker operates with movement of the door on the checker arm. For example, since the door at the uppermost position is fully opened, the door checker is pushed to the rear end of the checker arm together with the door.

In this process, the checker arm moves along the inner space formed in the door checker. When the checker passes through the inner space, the slider housed in the door checker comes into contact with the recessed groove of the checker arm to provide a buffering force to the opening force of the door And performs a door check function.

Such a conventional checker apparatus is configured to realize an automatic opening and closing mode capable of opening and closing a door by an electrical signal. However, when it is necessary to open and close a door by an external force of a user during a process of automatically opening and closing the door, When it is necessary to manually open and close the door, there is a disadvantage that it is difficult to switch to the manual opening / closing mode.

Specifically, in the conventional checker device capable of implementing the automatic opening and closing mode, when an unexpected accident that can not automatically open and close the door occurs, for example, the power device provided for opening and closing the door is damaged There is a problem that it is difficult to manually change the door so that the door can be opened and closed.

An object of the present invention is to provide a door opening / closing apparatus and a door opening / closing method, which can change the opening / closing mode of a door between an automatic opening / closing mode and a manual opening / closing mode by an electrical signal, So that the door can be manually opened and closed in a difficult situation.

In order to attain the above object, according to the present invention, there is provided a door checker for a vehicle, comprising: a fixing member attached to a vehicle body; a checker arm having one end hinged to the fixing member and rotatable, And a door checker attached to the door, the door checker accommodating the checker arm and slidably moving along the longitudinal direction of the checker arm so as to maintain the door stopped at a predetermined point on the moving path thereof As a matter of fact,

The door checker

A rotating unit rotating when a first electrical signal is applied;

A converter unit coupled to the checker arm, the converter unit interlocking with the rotation motion of the rotation unit when the second electrical signal is applied, and converting the rotation motion of the rotation unit into linear motion by the checker arm; And

And a control unit for turning on and off at least one of a first electrical signal applied to the rotation unit or a second electrical signal applied to the conversion unit,

The door opening /

When the first electrical signal and the second electrical signal are both turned on by the control unit, the conversion unit is interlocked with the rotation motion of the rotation unit, whereby the automatic opening and closing mode Wow,

And the conversion unit is freed from the rotational motion of the rotary unit when the second electrical signal is turned off by the control unit, thereby being able to be changed between the manual open / close mode in which the movable unit is movable by the external force.

Here, the conversion unit generates an electromagnetic force when the second electrical signal is applied,

The rotation unit includes:

A rotating member rotating when the first electrical signal is applied; And

And an interlocking member which rotates in conjunction with the rotational motion of the rotary member, the interlocking member being capable of interlocking the rotary motion of the rotary member with the conversion unit by an electromagnetic force generated from the conversion unit,

Wherein the interlocking member comprises:

A first position spaced apart from the conversion unit when the second electrical signal is not applied to the conversion unit, and a second position where the second electrical signal is applied to the conversion unit, Wherein the rotation unit is reciprocally movable between a first position in which the rotation unit is located at the first position and a second position in which the rotation unit is in the first position, .

Here,

And an elastic member disposed between the conversion unit and the interlocking member and elastically biasing the interlocking member in a direction away from the conversion unit.

Here,

An electromagnet for generating an electromagnetic force when the second electrical signal is applied;

A rotor member that is in contact with the interlocking member when the interlocking member is in a second position and is capable of rotating in conjunction with the rotation motion of the interlocking member by a frictional force with the interlocking member; And

And a gear member which is rotatable in conjunction with the rotational motion of the rotor member, wherein the gear member is formed on an outer circumferential surface of the gear member so as to be engageable with the checker arm.

Here,

And a cushioning material for relieving an impact that may be generated when the interlocking member is attracted and contacted by an electromagnetic force generated from the electromagnetic coil.

According to the door checker device for an automobile of the present invention, there is an advantage that the door opening / closing method can be changed between an automatic opening / closing mode and a manual opening / closing mode by an electrical signal.

Further, unlike the user's intention, there is an advantage that the opening and closing of the door can be manually opened and closed in a situation where it is difficult to realize automatic opening and closing of the door.

In addition, the life of the door checker device that implements the automatic opening / closing mode and the manual opening / closing mode can be extended, and thus the durability can be improved.

1 is a perspective view of an automotive door checker according to an embodiment of the present invention,
Fig. 2 is a rear view of Fig. 1, Fig. 3 is a plan view of Fig. 1,
FIG. 4 is an internal view of an automotive door checker apparatus in which the housing is removed in FIG. 1;
5 is a view showing the opposite side of Fig. 4,
Fig. 6 is a perspective view of the rotation unit, the conversion unit, the separation attempt of the rotary shaft portion of the door checker device for an automobile shown in Fig. 1,
Figure 7 shows the coupling diagram of Figure 6 and
8 is a cross-sectional view taken along line VIII-VIII of FIG.
9 is an enlarged view of a portion A in Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

FIG. 1 is a perspective view of an automotive door checker according to an embodiment of the present invention, FIG. 2 is a rear view of FIG. 1, FIG. 3 is a plan view of FIG. 1, Fig. 2 is an internal view of an automotive door checker apparatus.

Referring to Figures 1 to 9, The door checker 100 for an automobile according to an embodiment of the present invention includes a fixing member 10 attached to a vehicle body side, The checker arm 90 is attached to the door side and is slid along the longitudinal direction of the checker arm 90 while the door is stopped at a certain point on the movement path And a door checker 30 for holding the door checker 30.

In the door checker 100 for an automobile, the door checker 30 includes a housing 310, a cover 330, a power unit 350, a rotation unit 360, a conversion unit 370, 380, a position sensing unit 390, and a control unit (not shown).

The housing 310 has a receiving space formed therein, and one surface thereof is attached to the door for an automobile. The housing 310 is formed as a rectangular box as a whole, and a through hole 311 through which the checker arm 20 can pass is formed on one side of the housing 310. The checker arm 20 is passed through the other side of the housing 310 A through hole 311 is formed. The checker arm 20 introduced through the through hole 311 can be moved in the lengthwise direction of the housing 310. On the other hand, the checker arm 20 is provided with a plurality of gates arranged in the longitudinal direction. The checker arms 20 are meshed with the converting means 370.

The cover 330 is formed on one surface of the housing 310 and has a receiving space formed therein. The cover 330 is formed as a rectangular box as a whole. In the view of FIG. 1, the right side portion is divided into a first cover portion 331 and the left side portion is divided into a second cover portion 332 with respect to the center. A position sensing unit 390 described later is positioned above the first cover portion 331 and a rotation unit 360, a conversion unit 370, a rotation axis portion 380 ).

The power unit 350 includes means for providing power to the rotation unit 360 and includes a motor 351 having a motor shaft engaged with the rotation unit 360 as shown in FIG. . The motor 351 is provided with a worm 352 on the motor shaft which can be engaged with the worm gear 3611 formed on the rotary member 361 of the rotary unit 360. [ When the first electric signal is applied, the motor 351 rotates the motor shaft to generate power.

The rotation unit 360 is disposed in the second cover portion 332 and rotates by the power of the motor 351 when the first electric signal is applied. Also, the rotation unit 360 is provided with a reduction gear to simultaneously perform a reduction gear to increase the rotation torque.

The rotating unit 360 includes a rotating member 361, an interlocking member 363, and an elastic member 365.

The worm 352 and the worm gear 361a of the motor 351 are formed on the outer circumferential surface of the rotary member 361 so as to reduce the rotational power of the motor 351, The motor 351 rotates by the rotational power of the motor 351. On one surface of the rotating member 361, a partition wall 361b protruding along the edge is formed. An insertion space is provided by such a partition wall 361b. In this insertion space, a latching part 361c protruding from the one surface is formed.

The interlocking member 363 is formed in a substantially disc shape and has a size that can be inserted into the insertion space of the rotary member 361. The height of the interlocking member 363 in the vertical direction is smaller than the height of the engagement portion 361c. The interlocking member 363 is inserted into the insertion space and has a latching groove portion 363a into which the latching portion 361c can be inserted. The engaging groove portion 363a corresponds to the shape of the engaging portion 361c and has a size such that the interlocking member 363 can reciprocate in the vertical direction of the engaging portion 361c in the insertion space Has been produced. The interlocking member 363 rotates in a state where the engaging portion 361c is inserted into the engaging groove portion 363a when the rotating member 361 rotates, .

Meanwhile, the conversion unit 370, which will be described later, generates electromagnetic force when a second electrical signal is applied. The interlocking member 363 is rotated by the electromagnetic force generated from the conversion unit 370, And converts the motion into the rotational motion of the conversion unit 370 in conjunction with the conversion unit 370. [

Specifically, the interlocking member 363 is formed of a ferromagnetic metal that can be attracted by an electromagnetic force, and when the second electric signal is not applied to the converting unit 370 and no electromagnetic force is generated, the converting unit 370 And when a second electrical signal is applied to the conversion unit 370 to generate an electromagnetic force, it is sucked by the conversion unit 370 and positioned at an adjacent second position P2 ). The interlocking member 363 is reciprocally movable between the first position P1 and the second position P2. When the interlocking member 363 is positioned at the second position P2, The conversion unit 370 is interlocked with the conversion unit 370 so that the conversion unit 370 can not be rotated relative to the rotary member 361. In other words, the rotary motion of the rotary member 361 is converted by the rotary motion of the conversion unit 370 And when the rotation unit 361 is positioned at the first position P1, the rotation unit 361 is rotated relative to the rotation member 361 without interlocking the rotation unit 361 with the conversion unit 370, .

The elastic member 365 is disposed in a predetermined space between the conversion unit 370 and the interlocking member 363 and elastically biases the interlocking member 363 in a direction to separate the interlocking member 363 from the conversion unit 370 To be able to have elasticity. In the present embodiment, the elastic member 365 is a substantially circular leaf spring having a different height along the circumferential direction.

9B, a second electrical signal is applied to the elastic member 365 so that the interlocking member 363 is attracted to and adjoined to the conversion unit 370, P2, the electromagnetic force that has been deformed while being flattened so that the height is substantially constant along the circumferential direction becomes constant, and the second electric signal is not applied, and the electromagnetic force that attracted the interlocking member 363 to the conversion unit 370 9A, the interlocking member 363 is separated from the conversion unit 370 while being elastically deformed to an original state in which the height is different along the circumferential direction, as shown in FIG. 9A, (P1).

The conversion unit 370 is disposed coaxially with and rotatable with the rotation unit 360. When the second electrical signal is not applied, the conversion unit 370 engages the checker arm 20, (20) into rotational motion. When the second electrical signal is applied, the conversion unit 370 is coupled to the rotation unit 360 so that the rotation unit 360 can rotate relative to the rotation unit 360, To the relative linear motion of the checker arm (20).

The conversion unit 370 includes a gear member 371, an electromagnetic portion 373, and a rotor member 375.

The gear member 371 is formed on the outer circumferential surface of the outer circumferential surface of the checker arm 20 so that the gear member 371 can be tastably engaged with the groove of the checker arm 20, And a first fixed knee 371a engaged with the second fixed knee 3811 of the rotary shaft 381 is formed. The gear member 371 is coupled to a rotating shaft 381, which will be described later, so as to rotate in conjunction with the rotational motion of the rotor member 375 described later.

The electromagnet portion 373 includes a cylindrical electromagnet housing 373a disposed below the gear member 371 and having a generally open lower portion and an electromagnet 373b housed in the electromagnet housing 373a. .

When the second electrical signal is applied, the electromagnet 373b generates an electromagnetic force to attract the interlocking member 363 in a direction adjacent to the electromagnet 373b.

The rotor member 375 is a cylindrical member having an open top as a whole and has a structure that coaxially coaxial with the gear member 371 and rotate together irrespective of the application of the second electrical signal.

When the second electric signal is applied and electromagnetic force is generated from the electromagnet 373b, the rotor member 375 is positioned at the second position P2 at which the interlocking member 363 contacts the rotor member 375, The rotating force is received from the interlocking member 363 by the frictional force between the interlocking member 363 and the rotor member 375. When the second electric signal is not applied to the rotor member 375 and no electromagnetic force is generated from the electromagnet 373b, the interlocking member 363 is separated from the rotor member 375 so that the rotation of the interlocking member 363 And is not interlocked with the rotational motion of the interlocking member 363.

The rotor member 375 is formed with an accommodating space capable of accommodating the electromagnetic portion 373 by a partition wall 375a protruding upward along the edge and is formed with a space surrounded by the partition wall 375a A circular ring-shaped insertion space smaller than the diameter of the accommodation space is formed, and a cushioning material 375b is inserted in the insertion space. The cushioning material 375b is made of a material having good elasticity such as rubber and easy to absorb shock so that it absorbs and alleviates impact applied when the interlocking member 363 is sucked and contacts the rotor member 375 . An inorganic material may be added to the buffer material 375b to enhance the mechanical rigidity.

The rotary shaft portion 380 is a shaft for rotating the rotary unit 360 and the conversion unit 370 so that the rotary unit 360 and the conversion unit 370 can be disposed coaxially, A first bearing 382 provided on the rotating shaft 381 to support the rotating shaft 381 and a second bearing 383 provided below the rotating shaft 381.

The rotary shaft 381 is formed with a second fixed needle 381a which is engageable with the first fixed needle 371a of the gear member 371 on the upper outer peripheral surface.

The position sensing unit 390 calculates the degree of rotation from the specific reference point by converting the relative linear motion of the checker arm 20 into the rotational motion while engaging the checker arm 20, Detection.

The control unit (not shown) may turn on or off a first electrical signal applied to the power unit 350 or a second electrical signal applied to the electromagnetic coil unit 373.

The control unit may turn on the second electrical signal to make the door open and close automatically by the first electrical signal. Specifically, if the second electrical signal and the first electrical signal are both turned on by the control unit, the rotational motion of the rotating unit 360, which is rotated by the first electrical signal, And the rotational motion of the conversion unit 370 is converted into a relative linear motion by the checker arm 20 so that the opening and closing manner of the door is changed according to the first electrical signal The automatic opening and closing mode in which the movement of the door is determined.

Also, the control unit may turn off the second electrical signal so that the opening and closing of the door may be a manual opening / closing mode that can be manually performed irrespective of the first electrical signal. Specifically, if the second electrical signal is off by the control unit, the rotation of the conversion unit 370 is not linked to the rotational motion of the rotation unit 360, The relative linear motion by the checker arm 20 can be converted into the rotational motion of the conversion unit 370. The opening and closing method of the door can be controlled independently of the first electrical signal The manual opening / closing mode in which the movement of the door is determined by the external force.

The door checker 100 for an automobile according to an embodiment of the present invention operates as follows.

First, when the door is opened and closed by an external force by the user in a state where the second electric signal is turned off by the control unit, the checker arm 20 is slid with respect to the door checker 30. When the checker arm 20 is slid in this manner, the conversion unit 370 in the housing 310 converts the linear motion into rotational motion. Specifically, it is converted into rotational force through the gear member 371. At this time, the electromagnetic portion 373, the rotor member 375, and the rotation shaft 381 are simultaneously rotated. Since the elastic member 365 elastically biases the interlocking member 363 of the rotation unit 360 in a direction away from the rotor member 375, the interlocking member 363 is spaced apart from the rotor member 375 by a predetermined distance So that the conversion unit 370 can freely rotate irrespective of whether the first electrical signal is applied or not.

As described above, when the door is opened and closed by the external force, the manual opening / closing mode becomes possible in which the door can be moved while the conversion unit 370 rotates.

Meanwhile, when the first electrical signal and the second electrical signal are turned on by the control unit, the power unit 350 generates power by applying the first electrical signal, and the power unit 350 generates power, The rotation of the rotating unit 360 is converted into a rotational motion. The rotation of the rotating unit 360 is converted into the rotational motion of the converting unit 370 by the application of the second electrical signal and the checker arm 20 engaged with the converting unit 370 is rotated The rotational motion of the unit 370 is converted into a relative linear motion by the checker arm. Specifically, the first electric signal causes the motor 351 to generate power, and the rotating member 361 is rotated by the worm gear 361a engaged with the worm 352 formed on the motor shaft. At the same time, the interlocking member 363, which is inserted into the engagement portion 361c of the rotation member 361, is simultaneously rotated by the engagement groove portion 363a. When the electromagnet 373b generates an electromagnetic force by sucking the interlocking member 363 by the application of the second electric signal, the interlocking member 363 comes into contact with the rotor member 375. [ At this time, the buffer material 375b alleviates an impact generated when the interlocking member 363 contacts the rotor member 375. The rotational movement of the interlocking member 363 is converted into the rotational movement of the rotor member 375 by the frictional force between the interlocking member 363 and the rotor member 375 .

As described above, when the second electrical signal is applied, the automatic opening and closing mode becomes possible in which the door can be moved while the rotary unit 360 and the conversion unit 370 simultaneously rotate by the first electrical signal.

The door checker 100 for an automobile having the above-described configuration is not limited to a manual opening / closing mode for opening / closing the door by an external force as in the prior art, but may be an automatic door opener / There is an advantage that it is possible to provide a changeable structure between the opening and closing mode and the manual opening and closing mode which can be operated by an external force.

In addition, since the door opening / closing method is changed to the automatic opening / closing mode or the manual opening / closing mode by the electric signal, there is an advantage that the operation can be performed more precisely without giving a mechanical load.

The door checker for an automobile according to an embodiment of the present invention may be modified as follows.

When the door is opened in a state where the first electrical signal and the second electrical signal are all turned on and the door opening / closing mode is maintained in the automatic opening / closing mode, if the object is present in the vicinity, Especially when the car is parked adjacently, the control unit can turn off the first electrical signal so that the opening of the door, which was automatically moved, can be stopped. Alternatively, the control unit may change the first electrical signal that causes the door to be opened to a first electrical signal that causes the door to close, thereby closing the door.

In the above-described embodiment, the interlocking member 363 and the rotor member 375 are in contact with each other in the door checker, and the rotating unit 360 and the converting unit 370 are rotated together by the frictional force therebetween A coupling knee is formed in the interlocking member 363 and the rotor member 375 so that the interlocking member 363 can be engaged when the interlocking member 363 contacts the rotor member 375, It is also possible to minimize the loss of rotational kinetic energy of the rotating unit 360 when converting the rotational motion of the unit 370 into rotational motion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

[Description of Reference Numerals]
100: Automobile door checker device 10: Fixing member
20: Checker arm 30: Door checker
310: housing 311: through hole
330: cover 331: first cover part
332: second cover part 350: power part
351: motor 352: worm
360: rotating unit 361: rotating member
363: interlocking member 365: elastic member
370: conversion unit 371: gear member
373: electromagnet part 375: rotor member
380: rotating shaft portion 382: first bearing
383: Second bearing 390: Position sensing unit

Claims (5)

A checker arm which is hinged to one side of the fixed member and is rotatable and is positioned between the door and the vehicle body; and a checker arm attached to the door side, the checker arm being received in the checker arm, And a door checker for keeping the door stopped at a certain point on the moving path while sliding along the longitudinal direction, the door checker comprising:
The door checker
A rotating unit rotating when a first electrical signal is applied;
A converter unit coupled to the checker arm, the converter unit interlocking with the rotation motion of the rotation unit when the second electrical signal is applied, and converting the rotation motion of the rotation unit into linear motion by the checker arm; And
And a control unit for turning on and off at least one of a first electrical signal applied to the rotation unit or a second electrical signal applied to the conversion unit,
The door opening /
When the first electrical signal and the second electrical signal are both turned on by the control unit, the conversion unit is interlocked with the rotational motion of the rotary unit, whereby the automatic opening and closing mode Wow,
The conversion unit can be changed between the manual opening and closing modes in which the movable unit can be moved by the external force by being freed from the rotational motion of the rotary unit when the second electric signal is turned off by the control unit,
Wherein the conversion unit generates an electromagnetic force when the second electrical signal is applied,
The rotation unit includes:
A rotating member rotating when the first electrical signal is applied; And
And an interlocking member which rotates in conjunction with the rotational motion of the rotary member, the interlocking member being capable of interlocking the rotary motion of the rotary member with the conversion unit by an electromagnetic force generated from the conversion unit,
Wherein the interlocking member comprises:
A first position spaced apart from the conversion unit when the second electrical signal is not applied to the conversion unit, and a second position where the second electrical signal is applied to the conversion unit, Wherein the rotation unit is reciprocally movable between a first position in which the rotation unit is located at the first position and a second position in which the rotation unit is in the first position, To the door checker device. delete The method according to claim 1,
The rotation unit includes:
And an elastic member disposed between the conversion unit and the interlocking member and elastically biasing the interlocking member in a direction away from the conversion unit. The method according to claim 1,
Wherein the conversion unit comprises:
An electromagnet for generating an electromagnetic force when the second electrical signal is applied;
A rotor member that is in contact with the interlocking member when the interlocking member is in a second position and is capable of rotating in conjunction with the rotation motion of the interlocking member by a frictional force with the interlocking member; And
And a gear member that is rotatable in association with the rotational motion of the rotor member, the gear member being formed on an outer circumferential surface of the gear member so as to be engageable with the checker arm. 5. The method of claim 4,
The rotor member includes:
And a cushioning material for relieving an impact that may be generated when the interlocking member is sucked and brought into contact with an electromagnetic force generated from the electromagnetic portion.

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