KR20030097367A - Apparatus Limiting Opening Angle of Lift-up Type Door - Google Patents

Abstract

PURPOSE: An opening angle limit device of a lift-up type door is provided to automatically limit the opening angle of the door by limiting extension of a lift member through operation of a fixing part when the distance from the lower part of the door to the ceiling is below a reference value. CONSTITUTION: An opening angle limit device of a lift-up type door(2) includes a sensor(21) attached to the outer end of the door, to sense the distance from the outer end of the door to the ceiling; a lift member(3) situated between a fixed panel(1) and the door; a fixing part(34) installed to the lift member, to control extension and contraction of the lift member; and a control unit controlling extension and contraction of the lift member by receiving information about the vertical movement of the door and information about the distance between the door and the ceiling and giving a control signal to the fixing part. The door is rotated centering on an upper hinge and is vertically opened and shut. The lift member comprises plural links(31,32,33) and the lift member is extended and contracted according to the opening and shutting of the door.

Description

Apparatus Limiting Opening Angle of Lift-up Type Door}

The present invention relates to a device for limiting the opening angle of a lift-up type door that is opened and closed in a vertical direction, and more particularly, a sensor installed at an outer lower end of the door when the user opens the door at a low ceiling. By measuring the distance to the ceiling by less than a predetermined distance relates to an opening angle control device of the door to stop the movement in the upper direction of the door so that the door does not hit the ceiling.

In general, the door that is opened and closed by moving in the vertical direction may be a rear door of a lift-up type, that is, a tail gate, which is mainly used for rear doors such as a vehicle and is provided for loading / unloading passengers or loading and unloading cargo. .

For example, as shown in FIG. 3, the rear door 110 of the conventional vehicle is opened while pivoting in a vertical direction with a hinge point H at a portion contacting the roof panel 112 of the vehicle, and the rear door 110. In the case of opening), the gas lifter 116 installed between the quarter panel 114 and the rear door 110 of the vehicle is extended to firmly support the rear door 110 in an open state.

However, the conventional rear door 110, which is opened and closed in a vertical rotation manner as described above, when opened at a low position of the ceiling C, the outer lower end of the rear door 110 rotated in the upward direction. Interference generated by the ceiling C is generated.

In order to solve this problem, the Republic of Korea Patent Publication No. 2002-0015468 is configured to be folded in the vertical direction when necessary, the middle portion of the rear door as shown in FIG. That is, the upper door 110a and the lower door 110b which can be rotated relative to each other through the hinge point H 'at the middle part are configured, and the folding part between the upper door 110a and the lower door 110b is formed. The operation part 118 is provided to control the relative rotation of the lower door 110b with respect to the upper door 110a, and also drives the relative rotation of the rear door 110 divided up and down according to the operation of the operation part 118. FIG. The locking part 120 provided to switch suitably from a state to a release state is provided.

However, the above prior art also requires the user to be careful to open and fold the rear door by paying attention to whether or not the ceiling is low, and the rear door is folded when the rear door is opened by the force of the air cylinder. It requires a lot of power in the process of unfolding, so it is not easy for female users, and the rear door is foldable so that the rigidity of the rear door itself is reduced and when the car passes through the uneven road surface, it makes noise and Due to the increase in indoor air pressure due to the forward and backward movement, there is a problem of deteriorating the comfort of the passengers.

The present invention is to solve the above problems, it is installed across the fixed panel and the door when the opening and closing of the lift member is stretched when opening and closing the door, the lower end of the door having a sensor for sensing the distance to the ceiling on the outer bottom of the door If the distance between the ceiling and the ceiling is less than the predetermined reference value, the locking part is operated to limit the extension of the lift member. When the door is opened in a low ceiling, the opening angle of the door is automatically adjusted so that the lower part of the door does not hit the ceiling. The purpose is to provide a device that can be limited to.

1 is a side view showing an opening angle limiting device of a door according to the present invention;

2 is a schematic diagram schematically showing a control unit according to the present invention;

3 is a flow chart showing the action of the opening angle limiting device of the door according to the present invention;

4 is a side view partially showing a state in which a rear door of a conventional vehicle is opened; And

5 is a side view partially showing a state in which the conventional folding rear door is opened.

<Description of Symbols for Main Parts of Drawings>

1: fixed panel 2: door

3: lift member 21: sensor for distance detection

31, 32, 33: 1st, 2nd, 3rd link 34: engaging portion

40: control unit 42: determination means

310: guide hole 320: rolling member

321, 330: conductive metal piece 322: elastic member

340: rack member 341: uneven groove

342: locking piece 343: solenoid switch member

In order to achieve the above object, the present invention is rotatably coupled to the fixed panel is attached to the outer lower end of the door that is rotated about the hinge of the upper and opened up and down the sensor for sensing the distance between the outer lower end of the door and the ceiling And a lift member positioned between the fixed panel and the door and configured to be foldably connected to the lift member to expand and contract according to opening and closing of the door, and a locking portion installed on the lift member to control the expansion and contraction of the lift member. When the door is opened by including a control unit for controlling the expansion and contraction of the lift member by receiving the information about the movement of the door in the vertical direction and the information about the distance between the door and the ceiling from the sensor and giving a control signal to the locking part. Limits the opening angle of the door when the distance between the door and the ceiling detected by the sensor is less than the predetermined reference value. Do it.

In addition, the lift member of the present invention is coupled to the fixed panel and the first link is formed in the guide hole in the longitudinal direction therein, one side is inserted into the guide hole of the first link and moves along the guide hole in accordance with the opening and closing of the vehicle And a third link hinged to the second link and the door and accommodating the other end of the second link, wherein the locking portion is installed at the first link and the second link to control movement of the second link. To control the expansion and contraction of the lift member when opening and closing the door.

In addition, the locking portion of the present invention is extended from the front end of the first link and the rack member is formed with a plurality of uneven grooves on one side, and fixed to the second link, the power is supplied by a control signal from the controller And a solenoid switch member having a locking piece that is caught or escapes from the uneven groove of the rack member by being rotated forward and reverse when applied, and when the locking piece is caught by the uneven groove along the guide hole of the first link when the door is opened. The movement of the moving second link is limited to automatically stop the extension of the lift member.

In addition, a rolling member is installed at one end of the second link of the present invention to move the second link while rolling along the guide hole of the first link, and the other end of the second link having the conductive metal piece is connected to the third link. It is accommodated in the interior of the coupling is coupled via the elastic member, the inside of the third link is provided with a conductive metal piece for generating a signal in contact with the conductive metal piece of the second link when the door is moved downwards when the door is closed In response to the signal generated when the conductive metal piece of the 2nd link is in contact with the conductive metal piece of the 3rd link, the locking piece of the solenoid switch member rotates to exit the uneven groove of the locking part, thereby releasing the restriction of movement of the second link. Can be closed.

Hereinafter, with reference to the accompanying drawings looks at in detail the configuration according to the present invention. 1 is a side view showing an opening angle limiting device of a door according to the present invention, Figure 2 is a view schematically showing a control unit according to the present invention.

Referring to Figure 1, the opening angle limiting device of the door according to the present invention is a fixed panel 1, a door (2) that is hinged at the hinge point (H1) of the fixed panel 1 is rotatable in the vertical direction, and It consists of the lift member 3 which spans between the said fixed panel 1 and the door 2, and a length expands and contracts with the rotation of the door 2. As shown in FIG.

The fixed panel 1 corresponds to the quarter panel at the rear of the vehicle in this embodiment, and the lift member 3 is hinged to the hinge point H2 attached to one side of the fixed panel 1 to open and close the door. It is possible to rotate according to.

The door 2 corresponds to a tailgate of the vehicle in the present embodiment, and a sensor 21 for detecting a distance to the ceiling C is provided on the lower outer surface of the door 2. The sensor 21 detects the distance d between the ceiling C and the lower part of the door 2 while moving along the door that rotates around the hinge H1 when the door 2 is opened. 40) (see FIG. 2).

Referring to FIG. 2, the control unit 40 is an environmental control unit (ECU) which performs input / output with a peripheral control device and controls the control devices. In the present invention, the control unit 40 receives information about the rotation of the door 2 in the vertical direction. An input means 41 for receiving information about the distance d between the door 2 and the ceiling C from the sensor 21 is provided. In addition, the controller 40 determines the rotation of the door in the vertical direction from the information, and stores a predetermined reference value for the distance d between the ceiling C and the lower part of the door 2 and the sensor 21. Judging means 42 and an output signal from the judging means 42 determine whether the distance d between the ceiling and the lower part of the door is smaller than the reference value by the signal sent from The output means 43 is provided.

Referring to FIG. 1, the lift member 3 includes a first link 31 hinged at a hinge point H2 of the fixing panel 1, and a hinge coupling at a hinge point H3 of the door 2. It consists of three links, including the third link 33 and the first link 31 and the second link 32 coupled to the third link 33. The first link 31 has a hollow cylindrical shape, extends in the longitudinal direction, and is formed with a guide hole 310 for receiving the second link 32 and guiding movement thereof.

One end of the second link 32 is provided with a rolling member 320 such as a rolling bearing and inserted into the guide hole 310 of the first link 31. Therefore, the second link 32 may be easily introduced into or retracted from the inside of the first link according to the opening / closing operation of the door 2 by the rolling motion of the rolling member 320. In addition, the other front end of the second link 32 to which the conductive metal piece 321 is attached is accommodated in the third link 33 and coupled to the inner surface of the third link by the elastic member 322.

One side of the third link 33 is hinged at the hinge point H3 installed on the door 2, and a conductive metal piece 330 is installed inside the second link 32. The conductive metal piece 330 is positioned above the conductive metal piece 321 formed at the tip of the second link 32. Therefore, when the door is to be closed, when the door is lowered, the third link moves and the conductive metal piece 330 contacts the conductive metal piece 321 of the second link so as to allow an electric signal to pass through the electrical signal of the controller 40. It serves to send to the input means (41).

Referring again to FIG. 1, a locking portion 34 is provided in the middle of the lift member 3 to limit the movement of the second link. The locking portion 34 includes a rack member 340 extending from one side of the tip of the first link 31, and a plurality of uneven grooves 341 are formed on one side of the rack member 340. have. In addition, the second link 32 is rotated when the power is applied from the output means 43 (see FIG. 2) of the control unit 40 to be caught by one of the uneven grooves 341, and the reverse direction when the power in the opposite direction is applied. Solenoid switch member 343 including a locking piece 342 is rotated to release the latch is fixed is installed. When the engaging piece 342 is caught by the uneven groove 341 of the rack member 340 by rotation, the solenoid switch member 343 restrains the movement of the second link 32 fixed to the second link 32. ) Is unable to move along the guide hole of the first link, and is configured to move again when the locking piece 342 is released from the uneven groove 341.

Hereinafter, the operation of the opening angle limiting device of the door of the present invention having the above configuration will be described in more detail with reference to FIG. 3. 3 is a flow chart showing the action of the opening angle limiting device of the door when the door is opened and closed.

First, referring to FIG. 3A, when the door 2 is opened, when the door rotates from the lower part to the upper part of the hinge H1, the third link 33 of the lift member 3 is moved. As the rolling member 320 moves along the door, the rolling member 320 of the second link 32 moves upward along the guide hole 310 of the first link 31. Accordingly, the second link 32 is retracted upward from the first link 31 so that the overall length of the lift member 3 is extended. At the same time, the controller 40 detects the upward movement of the door. Applying power to the sensor 21 installed in the lower part of the door 2 to measure the distance (d) between the door 2 and the ceiling (C), and the information about the distance (d) the control unit 20 Is received by the input means 41. The determination means 42 of the control unit 40 applies power to the solenoid switch member 343 of the engaging portion 34 through the output means 43 when the distance d between the ceiling and the door becomes less than or equal to the reference value. The locking piece 342 is rotated in the forward direction to be caught by the uneven groove 341 of the rack member 340. Accordingly, the second link 32 is fixed with respect to the first link 31 and the door 2 is no longer rotated upwards so that the opening angle of the door is limited and does not hit the ceiling.

In addition, referring to FIG. 3B, when the door 2 is to be closed while the door is open, the second link 32 is fixed by the locking piece 342 when the door 2 is lowered. In the state in which the third link 33 moves downward so that the conductive metal piece 330 installed inside the third link 33 contacts the conductive metal piece 321 provided at the end of the second link 32, and the current is generated. While flowing, it sends a signal to the input means 41 of the control unit 40, and accordingly, the control unit 40 applies the power in the opposite direction to the solenoid switch member 343 again through the output means 43, so that the locking piece 342 ) Rotates in the opposite direction to exit the uneven groove 341 and cut off the power applied to the sensor 21 at the same time. Accordingly, while the rolling member 320 of the second link 32 again moves downward along the guide hole 310 of the first link 31, the second link 32 is connected to the first link 31. As the overall length of the lift member 3 is contracted while being accommodated inside the door, the door is easily closed.

Although the above embodiment and FIG. 1 are described with respect to the rear door of the vehicle, the technical idea of the present invention is not limited to the present embodiment, but it can be applied to other door opening and closing devices of a lift-up type that can be opened and closed in the vertical direction. Those skilled in the art may easily infer the present invention with reference to the detailed description and drawings.

As described above, the opening angle limiting device of the door according to the present invention measures the distance between the door and the ceiling by a sensor installed in the lower part of the door, and accordingly the control unit automatically catches the solenoid switch member when the reference value is below the reference value. By limiting the elongation of the lift member to prevent the door from hitting the ceiling automatically and at the same time to close the door to automatically release the locking piece provides a user convenience.

In addition, by allowing the second link to move along the guide hole of the first link, there is an effect that the door can be opened and closed with a light force.

Claims (4)

A sensor that is rotatably coupled to the fixed panel and attached to an outer lower end of the door that is pivoted about the upper hinge to be opened and closed up and down to detect a distance between the outer lower end of the door and the ceiling; Located between the fixing panel and the door, the lift member is composed of a plurality of links connected to the folding type to expand and contract according to the opening and closing of the door, A locking portion installed on the lift member to control expansion and contraction of the lift member; And a control unit configured to control the expansion and contraction of the lift member by receiving information about the movement of the door in the vertical direction and information about the distance between the door and the ceiling from the sensor and giving a control signal to the locking unit. The opening angle limiter of the door. The method of claim 1, The lift member is coupled to the fixed panel and the first link is formed in the guide hole in the longitudinal direction therein, one side is inserted into the guide hole of the first link and the second link moving along the guide hole in accordance with the opening and closing of the vehicle and And a third link hinged to the door and accommodating the other end of the second link, wherein the locking portion is installed on the first link and the second link to control movement of the second link. Each restrictor. The method of claim 2, The latching portion extends from the front end of the first link and is provided with a rack member having a plurality of uneven grooves formed at one side thereof, and fixedly installed at the second link, when the power is applied by a control signal from the controller. And a solenoid switch member having a locking piece that rotates to be caught or exits the uneven groove of the rack member. The method of claim 3, wherein A rolling member is installed at one end of the second link so that the second link rolls along the guide hole of the first link, and the other end of the second link having the conductive metal piece is installed inside the third link. The opening angle control of the door is accommodated and coupled via an elastic member, and a conductive metal piece is installed in the third link to contact the conductive metal piece of the second link and generate a signal when the door moves downward. Device.