KR20200066821A - retractable door handle - Google Patents

Abstract

Provided is a retractable door handle, which is to be used even in a freezing environment to improve the convenience of use. The retractable door handle of the present invention comprises: a door case unit having an opening formed on a front surface portion, and an accommodation space formed therein; a grip unit including a grip body provided to be formed with an outer surface profile substantially continuous with an outer surface of the door case unit when being inserted into the accommodation space and selectively popped up through the opening from the accommodation space, and an extension body integrally extending to the inside of the door case unit from at least one side of the grip body; a heating unit provided in the grip body, and selectively generating heat to pop up the grip unit in a freezing environment; an extension driving unit including an actuator provided on one side of the door case unit and an extension rod unit selectively extending by being connected to an end of the actuator; a link unit connected to the extension driving unit, and mediating pop-up of the grip unit in accordance with the driving of the actuator; a control unit for detecting freezing of the grip body, and selectively driving heating of the heating unit; and a latch unit connected to the link unit, and provided to open and close a door locking device by selectively locking and rotating a wire for providing tensile force when being pulled by the grip unit of a popped-up state in an outer direction of the door case unit.

Description

Retractable door handle

The present invention relates to a retractable door handle, and more particularly, to a retractable door handle which is provided to be used even in an icing environment to improve usability.

In general, the interior space of a vehicle is opened and closed by a plurality of doors. The door handle of the vehicle is provided with a door handle on the outside so that the occupant grips the door handle to open and close the door.

Here, since the door handle provided for the occupant to grip on the door of the vehicle is installed in a form protruding to the outside, wind noise is generated due to wind, which increases noise and degrades driving performance due to air resistance when driving the vehicle.

In order to solve this, recently, research and development have been conducted on a door handle for a vehicle that can minimize wind interference or wind noise while driving by selectively inserting a door handle that protrudes outside the door of the car into the inside of the door. That is true.

In detail, the door handle may be provided to selectively pop up and insert into a recessed space formed by opening one surface on one side of the door. Here, when the door handle is inserted into the door, the door handle and the outer surface profile of the door may be formed into a substantially continuous surface to form a beautiful appearance.

In addition, when the door handle pops up from the recessed space of the door, the user can pull the door handle to release the locking device. At this time, in order to release the latch of the locking device provided inside the door, the door handle may be provided to be hinged and pullable.

However, when freezing occurs on the surface of the door as the cold region or the temperature rapidly decreases, the user may not be able to board the vehicle because the door handle does not pop up from the recessed space of the door. there was.

Korean Registered Patent No. 10-1637820

In order to solve the above problems, the present invention is to provide a retractable door handle that is provided to be used even in an icing environment to improve the convenience of use.

In order to solve the above problems, the present invention is an opening portion is formed in the front portion, the door case portion is formed with a receiving space therein; When inserted into the accommodation space, the grip body is provided to be formed with a substantially continuous outer surface profile with the outer surface of the door case portion, and the grip body selectively pops up through the opening from the accommodation space, and the door case from at least one side of the grip body. A grip portion including an extension body integrally extending in the inner direction of the portion; A heating portion provided on the grip body and selectively heating to pop up the grip portion in an freezing environment; An extension driving unit including an actuator provided on one side of the door case unit and an extension rod unit selectively connected to and extended from the actuator; A link unit connected to the extension driving unit and mediating a pop-up of the grip unit according to the driving of the actuator; A control unit that detects freezing of the grip body and selectively drives the heating of the heating unit; And a retractor connected to the link unit, the latch unit being provided so that the wire providing the tensile force when the grip unit in the popped state is pulled outwards is selectively rotated to open and close the door locking device. Provides a door handle.

On the other hand, the present invention is an opening portion is formed in the front portion, the door case portion is formed with a receiving space therein; When inserted into the accommodation space, it is provided to be formed with a substantially continuous outer surface profile with the outer surface of the door case part, and the grip body selectively pops up through the opening from the accommodation space, and the inside of the door case part from both ends of the grip body. A grip portion including a pair of elongated bodies extending integrally in a direction; An extension driving unit including an actuator provided on one side of the door case unit and an extension rod unit selectively connected to and extended from the actuator; It includes an extension link that is moved back and forth according to the driving of the actuator, a pair of pop-up links linking both ends of the extension link and each of the extension bodies, and a guide unit for guiding the pop-up of the grip portion when the extension link is moved back and forth. Link section; And a retractor connected to the link unit, the latch unit being provided so that the wire providing the tensile force when the grip unit in the popped state is pulled outwards is selectively rotated to open and close the door locking device. Provides a door handle.

Through the above solution, the present invention provides the following effects.

First, the grip portion pops up through the opening from the receiving space as the surface of the grip body is thawed even in an extreme freezing environment through a heating portion that detects whether or not ice on the grip body surface of the grip portion is generated and heats when ice occurs. As it is possible, the usability can be significantly improved.

Second, as the actuator is electrically controlled when the smart key is approached by the proximity sensor, the grip portion is selectively popped up from the accommodation space by the link portion guided in correspondence with the state of the extension rod portion that is automatically stretched. And operational precision can be significantly improved.

Third, as the link shape is reliably switched from the parallelogram shape to the square shape by the pair of pop-up links linked to each extension body of the grip portion and the extension link that mediates the connection between the pop-up links, the grip portion Since is popped up, durability and operational precision can be significantly improved.

Fourth, since the locking state of the locking device is maintained regardless of whether the grip part selectively pops up by the extension driving part and the link part including the actuator and the extension rod part, unintentional automatic release of the locking device is prevented and used. Safety can be significantly improved.

Fifth, when the grip portion is inserted into the accommodation space, wind noise caused by wind is prevented and noise is reduced as the outer surface profile of the grip portion and the door case portion is formed as a substantially continuous surface. have.

1 is an exemplary view showing a state of use of a retractable door handle according to an embodiment of the present invention.
Figure 2 is a perspective view showing a retractable door handle according to an embodiment of the present invention.
Figure 3 is a perspective view showing the grip portion and the heating portion of the retractable door handle according to an embodiment of the present invention.
Figure 4 is an exemplary view showing a heating portion of the retractable door handle according to an embodiment of the present invention.
Figure 5 is a perspective view of the interior of the retractable door handle according to an embodiment of the present invention.
6 is an enlarged view of part'A' of FIG. 5;
7 is a perspective view showing a lower surface of a retractable door handle according to an embodiment of the present invention.
8 and 9 and 10 is a sectional view showing the state of use of the retractable door handle according to an embodiment of the present invention as viewed from the top.
11 is a block diagram showing a retractable door handle according to an embodiment of the present invention.

Hereinafter, a retractable door handle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view showing a use state of a retractable door handle according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a retractable door handle according to an embodiment of the present invention. And, Figure 3 is a perspective view showing a grip portion and a heating portion of the retractable door handle according to an embodiment of the present invention, Figure 4 is an exemplary view showing a heating portion of the retractable door handle according to an embodiment of the present invention . And, Figure 5 is a perspective view of the interior of the retractable door handle according to an embodiment of the present invention, Figure 6 is an enlarged view of the'A' portion of Figure 5; And, Figure 7 is a perspective view showing a lower portion of the retractable door handle according to an embodiment of the present invention, Figures 8, 9 and 10 is a state of use of the retractable door handle according to an embodiment of the present invention Is a sectional view of the view from the top. And, Figure 11 is a block diagram showing a retractable door handle according to an embodiment of the present invention.

1 to 11, the retractable door handle 300 according to an embodiment of the present invention includes a door case part 210, a grip part 220, an extension driving part 230, and a link part 240. , It is preferable to include a guide unit 250, a latch unit 260, a control unit 270, and a heating unit 280.

In one embodiment of the present invention, the door case part 210 is preferably understood as illustrated and described as a door device that is provided for each door of a vehicle and selectively opened and closed, and such a door case part 210 is a door provided in a vehicle. It is not necessarily limited to the device. That is, it is preferable to understand that the retractable door handle 300 of the present invention is applicable to a general door device as well as a door device of a vehicle. Hereinafter, a case in which the door case unit 210 according to an embodiment of the present invention is provided in a vehicle will be described as an example.

On the other hand, an opening 213 on the front surface of the door case 210 to accommodate the grip portion 220, the extension drive portion 230, the link portion 240, and the guide portion 250 is accommodated. It is preferable that the accommodation space 211 is formed and is recessed in the inner direction of the door case part 210.

Here, the door case part 210 may be provided to have a predetermined thickness and width so that the accommodation space 211 is formed. In addition, the accommodation space 211 is preferably formed to exceed the length in the width direction of the grip portion 220, the edge of the opening 213 side of the door case portion 210 is fine with the side surface of the grip portion 220 They can be spaced apart. Accordingly, the grip portion 220, the extension drive portion 230, the link portion 240, the retractable door handle 300 in the accommodation space 211 formed in the door case portion 210 The guide part 250 and the latch part 260 may be disposed.

Further, it is preferable that a long hole 214 for unlocking the door locking device (not shown) is formed on the lower surface of the door case part 210. Here, the long hole 214 may be formed through a circular arc shape on the other lower surface of the door case portion 210. In this case, the elongation driving unit 230, which will be described later, may be disposed on one side of the door case unit 210.

In addition, a winding protrusion 215 that extends downwardly so that the wire (w) providing a tensile force is wound so that the door locking device (not shown) is opened may be formed under the door case part 21. Detailed description will be described later.

Meanwhile, the grip part 220 preferably includes a grip body 221 and an extension body 224 integrally formed with the grip body 221. In one embodiment of the present invention, the grip portion 220 is illustrated and described in a “W” shape, but may be provided in a “T”, “C”, “A” shape, etc., but is not limited thereto. In the following, it is preferable to understand that the grip portion 220 according to an embodiment of the present invention is described in a “ㅁ” shape.

In addition, the grip body 221 is preferably provided to be formed into a substantially continuous outer surface profile with the outer surfaces of the door and the door case part 210 when inserted into the accommodation space 211. That is, the grip body 221 is completely inserted into the receiving space 211 when the vehicle is running and the vehicle is turned off, so that the outer surface is substantially continuous with the outer surface of the door and the door case part 210. It is preferably arranged to be formed.

Here, the grip body 221 may be provided in a bar shape, such as a rectangular parallelepiped, and the height and width of the outer surface of the grip body 221 is such that the opened one surface of the accommodation space 211 is completely covered with the door. It is preferably formed substantially corresponding to the size of the edge portion of the opening portion 213 of the case 210.

Accordingly, when the vehicle is driven, when the grip portion 220 is inserted into the accommodation space 211 of the door case portion 210, wind noise caused by wind is prevented and noise inside the vehicle is prevented as the outer profile is formed as a substantially continuous surface. It is reduced and the driving performance of the vehicle can be improved according to the improvement of air flow.

In addition, a recessed space may be recessed in the inner direction of the door case part 210 so that the heat conductive sheet 284 of the heating part 280 is disposed on the outer surface of the grip body 221, and the recessed space is formed. A cover part for covering may be further provided.

In addition, the grip part 220 including the grip body 221 is popped up through the opening 213 by a predetermined length from the accommodation space 211 toward the outside of the door case part 210. This is preferred. At this time, the pop-up means that the grip portion 220 is slided out of the door case portion 210 and withdrawn.

On the other hand, the extension body 224 is preferably extended at least one integrally in the inner direction of the door case portion 210 from at least one side of the grip body 221. Here, as in the exemplary embodiment of the present invention, when the grip portion 220 is provided in a “ㅁ” shape, the extended body 224 is provided from the both ends of the grip body 221 to the door case portion 210. Each may extend integrally in the inner direction.

In detail, the extension body 224 includes a first extension body 224a and a second extension body 224b, which extend integrally from the opposite ends of the grip body 221 to the inside of the door case 210, respectively. It is preferred to include. In addition, the grip part 220 may include a joint part 225 at which both ends are respectively connected to the inner ends of the first extended body 224a and the second extended body 224b.

In addition, in some cases, the extended body 224 may include the door case portion from at least one side of the grip body 221 such that the grip portion 220 is formed in a "T", "c", "a" shape, etc. It may extend integrally in the inner direction of (210). In the following, it is preferable to understand that the elongated body 224 is described by way of example in the case of being formed in a "ㅁ" shape.

In addition, a grip space in which a user's finger is inserted may be formed between the inside of the grip body 221 and each of the extension bodies 224 and outside the joint 225. Accordingly, when the user puts a finger in the grip space and presses the grip body 221 toward the outside of the door case part 210, a door locking device (not shown) may be opened. Detailed description will be described later.

In addition, each of the extended body 224 is preferably provided in a bar shape such as a rectangular parallelepiped that is substantially perpendicular to the grip body 221. In this case, substantially vertical means that the extended body 224 is disposed to be inclined at a minute constant angle close to the grip body 221 and perpendicular to the boundary surface of the grip body 221 and the extended body 224 When the outer side is formed to be round, it is preferable to understand in a comprehensive sense.

In addition, an extension 224c integrally further extending in an inner direction of the door case part 210 may be formed at an inner end of any one of the first extension body 224a and the second extension body 224b. Can be. At this time, in one embodiment of the present invention, it is understood that the extension part 224c is illustrated and described as being integrally extended further from the inner end of the second extension body 224b toward the inside of the door case part 210. desirable. Here, the inner edge of the door case portion 210 of the expansion portion 224c may be rounded. Accordingly, at the inner end of any one of the first extension body 224a and the second extension body 224b, the extension 224c integrally further extends in the inner direction of the door case part 210. By the final pop-up of the grip portion 220, the outer surface of the grip body 221 may be disposed to be inclined with the outer surface of the door case portion 210.

Meanwhile, the extension driving part 230 is disposed inside the door case part 210 or inside the door to selectively pop up the grip part 220 from the accommodation space 211 through the link part 240. And it is preferably provided to be inserted.

Here, the extension driving unit 230 is an actuator 231 provided on the inside of the door case unit 210, and is connected to one side of the actuator 231 to selectively expand and contract, that is, an extension rod that expands and contracts. It is preferred to include (232).

At this time, the extension rod portion 232 does not mean elastic expansion and contraction, but the extension rod portion 232 in a rigid state with a fixed length contracts inside the actuator 232, or the It is preferable to understand that the actuator 232 is used as a meaning extending in the longitudinal direction. That is, it is preferable to understand that the extension rod part 232 is connected to one side of the actuator 231 to selectively expand and contract. In addition, although the actuator 231 according to an embodiment of the present invention is illustrated and described as being disposed on one side of the door case part 210, the placement position is not limited thereto.

In detail, the actuator 231 may be provided in a hollow cylindrical shape or the like, and one side in the longitudinal direction may be opened and disposed on one side of the door case part 210. In addition, the actuator 231 is disposed so that both ends in the longitudinal direction are opposed to the sidewall surface inside the door case portion 210, it is preferable that the opened one side is disposed toward the arrangement direction of the grip portion 220. In addition, a female thread may be formed on the inner circumference of the actuator 231.

On the other hand, the extension rod portion 232 may be provided in a cylindrical shape or the like corresponding to the shape of the actuator 231, the outer periphery of the extension rod portion 232 may be formed with a male thread corresponding to the female thread. have. At this time, it is preferable to understand that the configuration in which the male and female threads are mutually modified is included in the scope of the present invention.

In addition, it is preferable that the outer diameter of the extension rod portion 232 is formed to substantially correspond to the inner diameter of the actuator 231. In addition, the extension rod portion 232 is preferably disposed one end is inserted inside the actuator 231, the other end is disposed in an exposed state from the actuator 231 is connected to the link portion 240 to be described later Do.

Accordingly, as the actuator 231 is rotated to the outside of the door case part 210, the extension rod part 232 may be extended in the longitudinal direction of the actuator 231. In addition, as the actuator 231 rotates in the inner direction of the door case part 210, the extension rod part 232 may contract in the longitudinal direction of the actuator 231.

Here, the extension rod portion 232 is not limited to this, as long as it is a configuration that is selectively expanded and contracted along the longitudinal direction of the actuator 231 by the actuator 231. For example, although not shown in the drawing, as the actuator 231 is rotated, the extension rod part 232 is not stretched in the longitudinal direction along a thread, but the actuator at one end of the extension rod part 232 ( A cylinder (not shown) for sealing the inside of 231 is provided, and the inside of the actuator 231 may be connected to a pneumatic pump (not shown) by a pneumatic flow path (not shown).

Accordingly, when air is introduced into the actuator 231 by the pneumatic pump (not shown), as the respective cylinders (not shown) expand, the extension rod part 232 lengths the actuator 231. Direction can be extended. In addition, when the inside air of the actuator 231 is sucked by the pneumatic pump (not shown), as the respective cylinders (not shown) contract, the extension rod part 232 moves in the longitudinal direction of the actuator 231. It may shrink.

Through this, when the control signal is received through the control unit 270 and the access sensor 271, which will be described later, to the actuator 231, the actuator 231 extends the extension rod 232 in the longitudinal direction or Since the extension rod portion 232 is automatically controlled to contract, the operation precision can be remarkably improved.

On the other hand, the retractable door handle 300 is preferably a smart key (not shown) of a separately provided vehicle further includes an approach detection sensor 271 that detects an approach when approaching within a predetermined distance from the vehicle.

Here, the access sensor 271 may be provided with a DID (Dight Detection And Ranging) sensor, a Radio Frequency Identification (RFID), or the like. In addition, when installed in the vehicle, the proximity sensor 271 is most preferably installed in the side mirror and the front and rear of the vehicle, and may be installed in the door case unit 210 in some cases.

Accordingly, when a user who has a smart key (not shown) approaches the proximity sensor 271 within a predetermined radius distance, the proximity sensor 271 detects the access of the smart key (not shown). Can be.

In the Republic of Korea Registered Patent Publication (Registration No. 10-1302944)'Vehicle Recognition Method and Apparatus', since the contents of obtaining distance information from an actual vehicle in a specific direction using a LIDAR sensor are disclosed, a detailed description thereof is provided. Is omitted.

In addition, the retractable door handle 300 is the extension driving unit 230 so that the grip unit 220 pops up from the accommodation space 211 when the access sensor 271 detects the smart key (not shown). It is preferable to include the control unit 270 for controlling. In detail, the control unit 270 sends a control signal to the actuator 231 so that the grip unit 220 pops up from the accommodation space 211 when the proximity sensor 271 detects the smart key (not shown). It is desirable to transmit.

At this time, the actuator 231 is selectively driven and controlled in the forward and reverse directions, and it is preferable to understand the forward and reverse directions as examples described in an embodiment of the present invention. It is preferable to understand that the configurations that are mutually converted are also included in the scope of the present invention.

In detail, the control unit 270 is the elongation driving unit 230 so that the grip unit 220 is completely inserted into the accommodation space 211 when the door case unit 210 is moved, that is, when the vehicle is running and when the vehicle is powered off. It is preferable to control the forward drive for a predetermined time. Here, it is preferable to understand that the extension driving part 230 is driven in the forward direction by the actuator 231 such that the extension rod part 232 extends outward in the longitudinal direction of the actuator 231.

To this end, a separate sensor (not shown) for detecting the movement of the vehicle or the door case unit 210 and the power-off of the vehicle may be further provided. Through this, when a signal for the movement of the vehicle or the door case unit 210 and the power-off of the vehicle is transmitted to the control unit 270, the extension driving unit 230 may be controlled to be driven forward for a predetermined time. have.

Accordingly, when the door case portion 210 is moved, that is, when the vehicle is running and when the vehicle is powered off, wind noise caused by wind is prevented as the grip portion 220 is completely inserted into the accommodation space 211 to prevent the wind noise from being blown inside the vehicle. Noise is reduced and the driving performance of the vehicle can be improved according to the improvement of air flow.

In addition, the control unit 270, when the proximity sensor 271 detects the smart key (not shown) and when the door is opened or closed or the vehicle is stopped, the grip unit 220 is moved from the accommodation space 211. It is preferable to reverse control the stretch driving unit 230 for a predetermined time so that it pops up by a set length. At this time, it is preferable to understand that the extension driving part 230 is driven in the reverse direction by the actuator 231, so that the extension rod part 232 contracts in the longitudinal direction of the actuator 231.

Here, when the proximity sensor 271 detects the smart key (not shown), a detection signal may be transmitted from the proximity sensor 271 to the controller 270. Through this, as the smart key (not shown) is approached within a preset radius range of the proximity sensor 271, the extension driving unit 230 may be controlled to be driven in the reverse direction for a predetermined time.

Accordingly, when the grip unit 220 in the state inserted into the accommodation space 211 is requested through the mutual configuration of the extension driving unit 230, the control unit 270, and the access detection sensor 271, the pop-up is required. Since it is selectively popped up from the accommodation space 211 through the opening 213, the usability can be remarkably improved.

Here, when the grip portion 220 pops up from the accommodation space 211, it is preferable to understand that the lock state of the door locking device (not shown) provided in the door case portion 210 is maintained and popped up. Detailed description will be described later.

Meanwhile, the link part 240 is preferably connected to the extension driving part 230 and is provided to mediate the pop-up of the grip part 220 according to the driving of the actuator 231. Here, the link unit 240 preferably includes a plurality of rotating links (241,242,243), and at least one pop-up link (245,246).

Hereinafter, the extension body 224 according to an embodiment of the present invention is provided as a pair of the first extension body 224a and the second extension body 224b, and accordingly the pop-up link 245,246 The case of being provided in a pair is illustrated and described as an example.

Here, the link portion 240 is a pair of linking the extension link 224 that is moved back and forth according to the driving of the actuator 231, and both ends of the extension link 224 and each of the extension bodies 224. It is preferable that the pop-up link 245 and 246 and the guide portion 250 guide the pop-up when the grip portion 220 moves back and forth of the extension link 244.

In this case, that the extension link 224 is moved back and forth means that the extension link 224 is moved in the front-rear direction of the vehicle, and the front side is one side of the accommodation space 211 in which the extension driving part 230 is disposed. Therefore, it is preferable that the rear side is understood as the other side of the accommodation space 211 in which the long hole 214 is formed. In addition, it is preferable to understand that one end and the other end of the extension link 224 are guided by the first pop-up guide part 253 and the second pop-up guide part 254, which will be described later, and move along the circular arc trajectory.

On the other hand, the rotation link 241, 242, 243 of the link unit 240 preferably includes a first rotation link 241, a second rotation link 242, and a third rotation link 243.

Here, it is preferable that the first rotational link 241 has one end linked to the end of the extension rod part 232, and the other end hinged to one end of the second rotational link 242. In addition, it is preferable that the second pivot link 242 has one end hinged to the other end of the first pivot link 241, but the other end hinged to the other end of the third pivot link 243. Further, it is preferable that one end of the third pivot link 243 is hinged to the second pivot link 242, while the other end is hinged to one end of the extension link 244.

At this time, the rotation pins 241, 242, 243 and the extension link 244 of each of the link portion 240 and the fixing pins disposed at both ends of the pop-up link 245, 246 are provided in the vertical direction by the fixing pin. Each link 241, 242, 243, 244, 245, 246 of the link portion 240 may be hinged.

Meanwhile, the pop-up links 245 and 246 of the link unit 240 preferably include a first pop-up link 245 and a second pop-up link 246.

Here, one end of the extension link 244 may be hinged to the other end of the third pivot link 243, but the other end may be hinged to one end of the second pop-up link 246. In addition, the first pop-up link 245 may have one end hinged to the other end of the third pivot link 243, but the other end may be linked to the inner end of the first extension body 224a.

In addition, one end of the second pop-up link 246 is hingedly connected to the other end of the extension link 244, but the other end is inward to the inside of the door case part 210 from the inner end of the second extension body 224b. It is preferable to be linked to the extension part 224c which is further extended integrally. At this time, if necessary, the other end of the second pop-up link 246 may be linked to the inner end of the second extension body 224b.

Meanwhile, the guide unit 250 is preferably provided in the accommodation space 211 and is provided to guide the movement path of the link unit 240. Here, the guide portion 25 preferably includes a pair of link guide portions 251 and 252 and pop-up guide portions 253 and 254 provided with at least one or more. At this time, in one embodiment of the present invention, the pop-up guide parts 253 and 254 are illustrated and described as being provided in a pair.

In addition, each body of the guide portion 250 including each of the link guide portions 251 and 252 and each of the pop-up guide portions 253 and 254 is provided in an arc shape, and the guide groove portion along the longitudinal direction is provided on the upper surface of each body. It is preferable that 251a,252a,253a,254a) are recessed in an arc shape.

Here, the inner diameters of the upper and inner edges of each of the link guide portions 251 and 252 and the pop-up guide portions 253 and 254 formed and opened by the guide groove portions 251a, 252a, 253a, and 254a are respectively the guide groove portions 251a ,252a,253a,254a) It is preferred that the inner diameter is formed. At this time, the end portion of each of the fixing pins inserted into each of the guide groove portions 251a, 252a, 253a, 254a may be extended stepwise outward in the radial direction. Accordingly, one end of a plurality of the fixing pins fixing the respective links 241, 242, 243, 244, 245, 246 of the link portion 240 is clamped into each of the guide groove portions 251 a, 252 a, 253 a, 254 a, so that the fixing pin is separated from above. Can be prevented.

And, each of the guide portion 250 is preferably coupled and fixed to the lower portion of the accommodation space 211, and in some cases, each of the guide portion 250 is formed integrally with the door case portion 210 to It may be arranged in the accommodation space 211.

In this case, as the door locking device (not shown) in one embodiment of the present invention is disposed at a higher position than the retractable door handle 300, each of the guide parts 250 is located at the lower portion of the accommodation space 211. It is preferred to understand as illustrated and illustrated as combined and fixed.

Meanwhile, the link guide portions 251 and 252 preferably include a first link guide portion 251 and a second link guide portion 252. Here, each of the link guide portions 251 and 252 is preferably disposed such that the actuators 231 are disposed on one side of the adjacent receiving space 211, but the concave portions of the link guide portions 251 and 252 are spaced apart from each other.

In detail, the first link guide portion 251 is preferably disposed in the outer direction of the door case portion 210 than the second link guide portion 252. In addition, it is preferable that the concave portions of the first link guide portion 251 and the second link guide portion 252 face each other and are spaced apart. Accordingly, a movement path may be guided when the rotation links 241, 242 and 243 of the link portion 240 are moved by the link guide portions 251 and 252.

Further, the pop-up guide parts 253 and 254 preferably include a first pop-up guide part 253 and a second pop-up guide part 254. Here, each of the pop-up guide parts 253 and 254 is disposed on one side adjacent to the link guide parts 251 and 252, the other side of the door case part 210 from the inner end of each of the extension bodies 224a and 224b. It is preferably disposed in a position extending in the inner direction. At this time, for the opening of the door locking device (not shown) on at least one other side of the pop-up guide parts 253 and 254, the door case part 210 of at least one of the pop-up guide parts 253 and 254 from the other side It is preferable that the unlocking extension portion 255 is further extended integrally in the outer direction.

In detail, the first pop-up guide part 253 is preferably disposed at the center of the receiving space 211 in the longitudinal direction. In addition, the second pop-up guide portion 254 is preferably disposed on the other side of the receiving space 211, that is, adjacent to the long hole 214.

Here, one side of the first pop-up guide portion 253 and the second pop-up guide portion 254 is a position adjacent to the link guide portion 251,252 side, that is, the accommodation space 211 adjacent to the actuator 231 ) Is preferably disposed on one side.

And, the other side of the first pop-up guide portion 253 and the second pop-up guide portion 254 extends from the inner end of each of the extension bodies 224a, 224b to the inner direction of the door case portion 210. It is preferred that each is placed in a position.

Accordingly, when the extension rod portion 232 is extended by the actuator 231, each of the pop-up links 245,246 and the pop-up links 245,246 move as the door case portion 210 moves outward. Since the extension body 224 is disposed substantially parallel, the grip portion 220 may stably pop up.

In addition, the first pop-up guide portion 253 and the second pop-up guide portion 254, it is preferable that each concave portion is disposed in the outward direction of the door case portion 210. Accordingly, as each movement path of the pop-up link 245,246 of the link portion 240 is guided by the pop-up guide portions 253 and 254, the grip portion 20 is opened from the accommodation space 211. 213).

Further, it is preferable that the other end of the first rotational link 241 and the movement of one end of the second rotational link 242 are guided by the first link guide unit 251, and the second link guide unit ( It is preferable that the other end of the second rotation link 242 and one end of the third rotation link 243 are guided by 252).

In addition, it is preferable that the first pop-up guide 253 guides the movement of the other end of the third pivot link 243 and one end of the extension link 244 and one end of the first pop-up link 245. Preferably, the other end of the extension link and one end of the second pop-up link are guided by the second pop-up guide unit.

Meanwhile, a pop-up process of the grip unit 220 according to an embodiment of the present invention is as follows.

First, referring to FIG. 8, when the door case portion 210 is moved, that is, when the vehicle is running and when the vehicle is turned off, the control unit 270 is configured such that the grip unit 220 is completely inserted into the accommodation space 211. It is desirable to control the actuator 231 in the forward direction for a predetermined time.

Here, when the actuator 231 is driven in the forward direction, it is preferable that the extension rod 232 is extended outside the longitudinal direction of the actuator 231 by the actuator 231, that is, toward the rear of the vehicle.

Subsequently, when the extension rod part 232 is extended, it is preferable that the other end of the first rotation link 241 and one end of the second rotation link 242 are moved to the rear end of the first link guide part 251. Do.

At the same time, it is preferable that the other end of the second pivot link 242 and one end of the third pivot link 243 are moved to the front end of the second link guide unit 252. In addition, it is preferable that the other end of the third pivot link 243, one end of the extension link 244, and one end of the first pop-up link 245 are moved to the front end of the first pop-up guide section 253. . In addition, it is preferable that the other end of the extension link 244 and one end of the second pop-up link 246 are moved to the front end of the second pop-up guide part 254.

Through this, as the other ends of the first pop-up link 245 and the second pop-up link 246 linked to the inner end of the extension body 224 are moved in the inner direction of the door case part 210 The grip part 220 may be inserted into the accommodation space 211. Here, when the grip portion 220 is completely inserted into the accommodation space 211, the outer surface of the door case portion 210 and the outer surface of the grip portion 220 may be formed in a continuous outer surface profile.

On the other hand, referring to Figure 9, when the proximity sensor 271 detects the smart key (not shown) and when the door is opened or closed or the vehicle is stopped, the grip unit 220 is moved from the accommodation space 211. It is preferable that the control unit 270 controls the actuator 231 in the reverse direction for a predetermined time so that it is popped up by a set length.

Here, when the actuator 231 is driven in the reverse direction, it is preferable that the extension rod part 232 is contracted by the actuator 231 in the longitudinal direction of the actuator 231, that is, in front of the vehicle.

Subsequently, when the extension rod part 232 is contracted, the other end of the first rotation link 241 and one end of the second rotation link 242 are preferably moved to the front end of the first link guide part 251. Do.

At the same time, it is preferable that the other end of the second pivot link 242 and one end of the third pivot link 243 are moved to the rear end of the second link guide unit 252. In addition, it is preferable that the other end of the third pivot link 243, one end of the extension link 244, and one end of the first pop-up link 245 are moved to the rear end of the first pop-up guide section 253. . In addition, it is preferable that the other end of the extension link 244 and one end of the second pop-up link 246 are moved to the rear end of the second pop-up guide part 254.

Through this, each other end of the first pop-up link 245 and the second pop-up link 246 linked to the inner end of the extension body 224 is moved to the outside direction of the door case part 210 The grip part 220 may be popped up from the accommodation space 211 through the opening 213.

Accordingly, when the smart key (not shown) is approached by the proximity sensor 271, the actuator 231 is electrically controlled to be electrically moved and moved in correspondence with the state of the extension rod 232 when the smart key (not shown) is approached. With the configuration in which the grip portion 220 is selectively popped up from the accommodation space 211 by the link portion 240, usability and operation precision can be remarkably improved.

In addition, the link shape is parallel by the extension link 244, which mediates the connection between the pair of pop-up links 245,246 and the pop-up links 245,246 connected to each of the extension bodies 224 of the grip part 220. Since the grip portion 220 pops up as it is stably switched from a quadrilateral shape to a square shape, it is possible to significantly improve durability and operational precision.

Here, when the grip part 220 pops up from the accommodation space 211 by the extension driving part 230 and the link part 240, one end of the first pop-up link 245 is the first pop-up guide part. Is disposed at the rear end of the (253), one end of the second pop-up link 246 is disposed at the rear end of the second pop-up guide section 254, the first and the first end of the first pop-up link 245 2 It is understood that one end of the pop-up link 246 is disposed at one side of each unlocking extension part 255 that extends further outwardly of the door case part 210 to open the door locking device (not shown). This is preferred. At this time, it is preferable to understand that one side of the unlocking extension portion 255 is disposed inside the door case portion 210 than the other side of the unlocking extension portion 255.

Accordingly, one end of the first pop-up link 245 and one end of the second pop-up link 246, regardless of whether the grip portion 220 is popped up and inserted from the accommodation space 211 (not shown) To open the door), the door locking device (not shown) is not opened because it is disposed in a position that does not pass through each of the unlocking extension portions 255. That is, the door locking device (not shown) for opening and closing the door case part 210 is not opened regardless of pop-up and insertion of the grip part 220 by the extension driving part 230 and the link part 240. Does not. Therefore, it is understood that a contact sensor is provided on the inner surface of the accommodation space, and when the contact sensor comes into contact with the contact portion provided inside the handle, the door is locked and the handle pops up to separate the door from the contact sensor and unlock the door. desirable.

Through this, when the grip portion 220 pops up from the accommodation space 211, the locked state of the door locking device (not shown) is maintained and pops up. Accordingly, even if the grip portion 220 unintentionally pops up from the accommodation space 211 due to aging, external force action, or malfunction of the device, automatic release of the door locking device (not shown) can be prevented.

Therefore, regardless of whether the grip portion 220 is popped up and inserted selectively by the extension driving portion 230 and the link portion 240, the locked state of the door locking device (not shown) is maintained, so the intended value The automatic release of the door locking device (not shown), which has not been performed, is prevented beforehand, so that the safety of use can be significantly improved.

On the other hand, the latch portion 260 is connected to the link portion 240, a wire (w) that provides a tensile force when the grip portion 220 in the popped state pulls outwardly of the door case portion 210 It is preferable that the door locking device (not shown) is provided to be opened and closed by being selectively rotated. Here, the latch portion 260 preferably includes a latch bar 261, a latch connection portion 262, and a latch bracket 263.

In detail, the latch bar 261 is one side of the pop-up link (245 246) is selectively hooked to any one end, it is preferably provided in a bar shape is disposed across the long hole. At this time, the other end of the latch bar 261 is fixed to the receiving space 211 to provide a rotation shaft function. In addition, it is preferable that one end of the latch connecting portion 262 is connected to the central side in the longitudinal direction of the latch bar 261.

In addition, the latch connecting portion 262 is preferably connected to one end of the latch bar 262 in the longitudinal center, the other end is connected to the latch bracket 263. At this time, the latch connection portion 262 connects the latch bar 261 and the latch bracket 263, but when the grip portion in a popped state pulls outwardly of the door case portion, the wire (w) is selectively It is preferable to be provided through the long hole 214 so as to be rotated.

In addition, the latch bracket 263 may be provided on the lower outer side of the door case portion, may be provided in a disc shape or the like. In addition, the wire (w) may be wound around the winding protrusion 215 extending downwardly and protruding below the door case part 210. At this time, the end (w1) of the wire (w) is extended adjacent to the latch connection portion 262 so that the latch portion 260 is locked when moving along the long hole 214, or to the latch connection portion 262 Winding can be connected.

Accordingly, the door locking device (not shown) as the wire (w) is pulled when the latch portion 260 is caught by any one of the pop-up links 245 and 246 and moves from one end of the long hole to the other end. Can be unlocked.

Meanwhile, referring to FIG. 10, when the grip unit 220 is pulled outward by the user in the state in which the grip unit 220 is popped, the first pop-up link 245 It is preferable that at least one end of one end and the second pop-up link 246 is moved from one side of the unlocking extension portion 255 to the other side.

At this time, it is preferable to understand that the unlocking extension part 255 is formed to extend further from the other side of at least one of the pop-up guide parts 253 and 254 integrally toward the outside of the door case part 210, and unlocking the lock It is preferable to understand that one side of the extension portion 255 is disposed inside the door case portion 210 than the other side of the unlocking extension portion 255. In addition, the guide groove portion 253a along an upper surface of the unlocking extension portion 255 which is further formed integrally further extending from the other side of at least one of the pop-up guide portions 253 to the outside direction of the door case portion 210, An extension guide groove portion extending integrally from 254a) may be formed.

Subsequently, as one of the first pop-up link 245 and the second pop-up link 246 moves from one side of the unlocking extension portion 255 to the other side, the latch bar 261 is engaged, and thus the latch It is preferable that the longitudinal center of the bar 261 is moved from one end of the long hole 214 to the other. At this time, in the embodiment of the present invention, the second pop-up link 246 is described and illustrated as being latched by the latch bar 261.

At the same time, the lock state of the door locking device (not shown) may be released as the end w1 of the wire w is interlocked and pulled by the latch connection portion 262. At this time, in some cases, as the wire w is released, the door locking device (not shown) may be configured to be unlocked. In addition, in some cases, after the grip portion 220 in the pop-up state is pulled outwardly by the user in the outward direction of the door case portion 210 for elastically restoring the grip portion 220 toward the accommodation space 211 side A separate elastic member (not shown) may be further provided.

Accordingly, when the grip portion 220 in the pop-up state is pulled outwardly of the door case portion 210, the end portion w1 of the wire w is caught by the latch portion 260 so that the wire w ), the door locking device (not shown) connected to the wire w may be opened as it is pulled.

Therefore, unlike the conventional in which the locking is released as the handle of the door is hinged, the door locking device (not shown) is locked when the grip part 220 in the pop-up state is pressed outwardly of the door case part 210. Since it is released, wear of the grip part 220 is prevented beforehand, and durability can be significantly improved.

At this time, since the length of the first extension body 224a side is smaller than the sum of the length of the second extension body 224b side and the length of the extension portion 224c, the user may apply the grip part 220 to the door case part ( When pulling in the outer direction of 210, the angle between the outer surface of the grip body 220 and the outer surface of the door case part 210 may be inclined.

On the other hand, the heating unit 280 is provided on the grip body 220, it is preferred that the grip unit 220 is selectively heated to pop up through the opening 213 from the accommodation space 211 even in an ice-free environment. . In addition, the heating unit 280 preferably includes a heating element 281, a heat conductive sheet 282, and a power supply unit 283. In addition, the control unit 270 is preferably provided to selectively drive the heat generated by the heating unit 280 by detecting whether the grip body 220 is frozen.

Here, the heating element 281 is provided in a plurality of places on the grip body 221, the freezing of the outer surface of the grip body 221 and the door case portion 210 adjacent to the grip portion 220 in the freezing environment is removed. It is preferably provided so that the grip portion is selectively heated to pop up. At this time, the heating element 218 may be provided with a heating terminal disposed in a plurality of places on one surface of the thermal conductive sheet 282, and in some cases, may be provided in the form of an electric wire disposed along the entire surface of the thermal conductive sheet 282. It may be, if the structure that can generate heat is not limited to this.

In addition, the heat conductive sheet 282 may be provided along the surface of the grip body 221, but may be provided to diffuse heat on the surface of the grip body 221 when the heating body 281 heats up. Here, the thermal conductive sheet 282 may be provided as a planar heating element made of a carbon nanotube material, or may be made of a material having high thermal conductivity.

In addition, the thermal conductive sheet 282 may be disposed along the longitudinal direction of the grip body 221 in a recessed space formed in the outer surface of the grip body 221, the thermal conductive sheet 282 is the door case portion In order to prevent exposure from the outer direction of 210, the cover part is further provided to be disposed on the outer surface of the grip body 221.

At this time, as the cover portion is made of the same material as the door, when the grip portion 220 is inserted into the accommodation space 211, the outer surface profile of the cover portion and the door may be formed as a substantially continuous surface.

In addition, the power supply unit 283 is preferably provided to supply power to the heating element 281. Here, the power supply unit 283 may be disposed inside the extension body 224 or in the accommodation space 211 in the form of a battery, and the arrangement position of the power supply unit 283 is not limited thereto. Here, when the retractable door handle 300 is provided in the vehicle, the power supply unit 283 may be wired to the vehicle's power supply source, or may be directly supplied with power from the vehicle's power supply source.

Meanwhile, the heating unit 281 may further include an ice sensor 284 provided to sense the surface temperature of the grip body 221. Here, the freezing sensor 284 may include a temperature sensor, an atmospheric sensor, a pressure sensor, a piston tube, an anemometer, and the like, but is not limited thereto. At this time, in the embodiment of the present invention will be described as an example where the freezing sensor 284 is provided as a temperature sensor.

Here, when the temperature sensed by the freezing detection sensor 284 is less than a preset temperature, that is, when ice is generated on the front surface of the grip body 221, the controller 270 is configured to remove the ice so that the ice is removed. It is preferable to apply power to the heating element 281 by automatically controlling 283.

Moreover, at the same time that the temperature sensed by the freezing detection sensor 284 is below a preset temperature, the smart key (not shown) through the proximity detection sensor 271 is preset from the door case unit 210. The control unit 270 may automatically control the power unit 283 to apply power to the heating element 281 so that the heating element 281 heats up when the distance is detected within a distance.

Accordingly, the surface of the grip body 221 is thawed even in an extreme ice environment through the heating unit 280 that detects whether or not ice on the surface of the grip body 220 is generated and heats when ice occurs. Accordingly, since the grip portion 220 can be popped up from the accommodation space 211 through the opening 213, the usability can be remarkably improved.

Of course, in some cases, when the freezing detection method of the freezing detection sensor 284 is calculated and calculated in an aerodynamic method, the air flow direction and angle of the outer surface of the door case part 210 through a pressure sensor, a piston tube, an anemometer, etc. , As information such as the angle of the side slip, the angular velocity, the aerodynamic load, and the speed of the vehicle is obtained, the presence or absence of freezing may be calculated by a predetermined calculation expression. Through this, when it is determined that ice is detected by the calculation unit based on the information obtained through the aerodynamic freezing detection method, the control unit may apply power to the power unit to generate heat.

At this time, the terms "include", "compose" or "prepare" as described above means that the corresponding component can be intrinsic unless otherwise stated, and other components are excluded. It should not be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the contextual meaning of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and it is possible to be modified by a person skilled in the art to which the present invention pertains without departing from the scope of the claims of the present invention. The implementation of such modifications is within the scope of the present invention.

300: retractable door handle 210: door case
211: accommodation space 213: opening
214: Jangong 215: Winding protrusion
220: grip portion 221: grip body
224: extension body 224c: extension
225: joint 230: kidney drive
231: actuator 232: extension rod portion
240: link section 250: guide section
255: unlocking extension part 260: latch part
261: Latch bar 262: Connection
263: latch bracket 270: control unit
271: approach sensor 280: heating unit
281: heating element 282: thermal conductive sheet
283: Power supply 284: Freeze detection sensor

Claims (17)

An opening portion is formed in the front portion, and a door case portion in which an accommodation space is formed;
When inserted into the accommodation space, the grip body is provided to be formed to have a substantially continuous outer surface profile with the outer surface of the door case portion, and the grip body selectively pops up through the opening from the accommodation space, and the door case from at least one side of the grip body. A grip portion including an extension body integrally extending in the inner direction of the portion;
A heating portion provided on the grip body and selectively heating to pop up the grip portion in an freezing environment;
An extension driving unit including an actuator provided on one side of the door case unit and an extension rod unit selectively connected to and extended from the actuator;
A link unit connected to the extension driving unit and mediating a pop-up of the grip unit according to the driving of the actuator;
A control unit that detects freezing of the grip body and selectively drives the heating of the heating unit; And
Retractable, which is connected to the link portion, and includes a latch portion provided to open and close the door locking device by selectively engaging and rotating a wire that provides a tensile force when the grip portion in the popped state is pulled outward in the door case portion. Door handle. According to claim 1,
The heating unit,
A heating element provided in a plurality of locations on the grip body to selectively freeze heat so that the grip portion pops up by removing ice on the surface of the grip portion in an freezing environment
A heat conductive sheet provided along the surface of the grip body to diffuse heat on the surface of the grip body when the heating element is heated;
A retractable door handle comprising a power supply for supplying power to the heating element. According to claim 2,
The heating unit further includes an ice sensor for sensing the surface temperature of the grip body,
The control unit is a retractable door handle, characterized in that when the temperature detected by the freezing detection sensor is less than a preset temperature, controls the power supply unit to apply power to the heating element. The method of claim 3,
The control unit controls the power source when the temperature detected by the freezing sensor is less than a preset temperature and the smart key provided separately through the access sensor is within a predetermined distance from the door case unit. Retractable door handle characterized in that the power is applied to. According to claim 1,
The additionally provided smart key further includes an access detection sensor that detects access when approaching within a predetermined distance from the door case part,
The control unit controls the actuator so that the grip unit pops up from the accommodation space when the access sensor detects the smart key. According to claim 1,
The link portion, an extension link that is moved back and forth according to the driving of the actuator, a pair of pop-up links linking both ends of the extension link and each of the extension bodies, and guiding the pop-up of the grip portion when the extension link is moved back and forth Retractable door handle comprising a guide portion. An opening portion is formed in the front portion, and a door case portion in which an accommodation space is formed;
When inserted into the accommodation space, it is provided to be formed to have a substantially continuous outer surface profile with the outer surface of the door case part, and the grip body selectively pops up through the opening from the accommodation space, and the inside of the door case part from both ends of the grip body. A grip portion including a pair of elongated bodies extending integrally in a direction;
An extension driving unit including an actuator provided on one side of the door case unit and an extension rod unit selectively connected to and extended from the actuator;
It includes an extension link that is moved back and forth according to the drive of the actuator, a pair of pop-up links linking both ends of the extension link and each of the extension bodies, and a guide unit for guiding the pop-up of the grip portion when the extension link is moved back and forth. Link section; And
Retractable, which is connected to the link portion, and includes a latch portion provided to open and close the door locking device by selectively engaging and rotating a wire that provides a tensile force when the grip portion in a popped state is pulled outward in the door case portion. Door handle. The method according to claim 6 or 7,
The link portion further includes a first pivot link, a second pivot link, and a third pivot link,
One end of the first rotational link is connected to the end of the extension rod portion, and the other end is hinged to one end of the second rotational link,
The second pivot link has one end hinged to the other end of the first pivot link, the other end hinged to the other end of the third pivot link,
The retractable door handle, characterized in that one end of the third pivot link is hinged to the second pivot link while the other end is hinged to one end of the extension link. The method of claim 8,
The pop-up link includes a first pop-up link and a second pop-up link,
One end of the extension link is hinged to the other end of the third pivot link, the other end is hinged to one end of the second pop-up link,
One end of the first pop-up link is hinged to the other end of the third pivot link, the other end of which is linked to the inner end of the first extension body among the extension bodies,
The second pop-up link is characterized in that one end is hingedly connected to the other end of the extension link, but the other end is connected to the extension part integrally further extending from the inner end of the second extension body to the inside of the door case part of the extension body. Retractable door handle. The method according to claim 6 or 7,
The guide part includes a pair of link guide parts and a pair of pop-up guide parts,
Each of the link guide portion and the pop-up guide portion is provided in a circular arc shape, and a retractable door handle characterized in that a guide groove portion is recessed along the longitudinal direction on the upper surface of each of the link guide portion and the pop-up guide portion. The method of claim 10,
The link guide part includes a first link guide part and a second link guide part, the pop-up guide part includes a first pop-up guide part and a second pop-up guide part, and the pop-up link includes a first pop-up link and a second pop-up link. Including,
The other end of the first link and the movement of one end of the second link is guided by the first link guide unit,
The second link guide unit guides the movement of the other end of the second link and the third link of the link,
The first pop-up guide unit guides the movement of the other end of the third pivot link, one end of the extension link, and one end of the first pop-up link,
A retractable door handle, characterized in that the second pop-up guide unit guides the movement of the other end of the extension link and one end of the second pop-up link. The method of claim 10,
Each of the link guide portion is disposed on one side of the accommodation space adjacent to the actuator, but the concave portions of each link guide portion are disposed to face each other and spaced apart from each other.
Retractable door handle, characterized in that one side of each of the pop-up guide portions is disposed adjacent to the link guide portion side, and the other side is disposed in a position extending from the inner end of each of the extension bodies to the inner side of the door case portion. The method of claim 12,
A retractable door handle, characterized in that, on at least one other side of the pop-up guide portion, a locking release extension portion is further extended integrally from the other side of the pop-up guide portion toward the outside of the door case portion. The method of claim 7,
A long hole for unlocking the door locking device is formed on a lower surface of the door case part, and the long hole is formed through a circular arc,
The latch portion, one side of the pop-up link is selectively latched to any one end provided with a bar-shaped latch bar disposed across the long hole,
A latch bracket provided on the lower outer side of the door case portion,
The latch bar and the latch bracket is connected, but the grip portion in a popped state includes a latch connection portion provided through any one side of the long hole to selectively rotate the wire when the door case portion is pulled outward. Retractable door handle. The method of claim 7,
The elongated body includes a first elongated body and a second elongated body that extend integrally from both ends of the grip body to the inside of the door case part, respectively.
A retractable door handle, characterized in that an extension portion integrally further extending in an inner direction of the door case portion is formed at an inner end of any one of the first extension body and the second extension body. The method of claim 7,
An access detection sensor for detecting access when a smart key provided separately approaches within a predetermined distance from the door case part,
A retractable door handle further comprising a control unit for controlling the actuator so that the grip unit pops up from the accommodation space when the proximity sensor detects the smart key. The method of claim 16,
The controller extends the extension rod part outward in the longitudinal direction of the actuator by controlling the actuator forward so that the grip part is completely inserted into the accommodation space when the door case part is moved and the power is turned off.
When the proximity sensor detects the smart key and opens and closes the door, the actuator is reversely controlled so that the grip portion pops up from the accommodation space by a predetermined length, and the extension rod portion contracts in the longitudinal direction of the actuator. Retractable door handle.

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