WO2022154522A1 - Ensemble appui-tête - Google Patents

Ensemble appui-tête Download PDF

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Publication number
WO2022154522A1
WO2022154522A1 PCT/KR2022/000649 KR2022000649W WO2022154522A1 WO 2022154522 A1 WO2022154522 A1 WO 2022154522A1 KR 2022000649 W KR2022000649 W KR 2022000649W WO 2022154522 A1 WO2022154522 A1 WO 2022154522A1
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WO
WIPO (PCT)
Prior art keywords
pair
stay
mounting base
swing
base
Prior art date
Application number
PCT/KR2022/000649
Other languages
English (en)
Korean (ko)
Inventor
신강목
최일항
신시경
신창용
윤대환
Original Assignee
(주)현대공업
(주)디앤엠솔루션즈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)현대공업, (주)디앤엠솔루션즈 filed Critical (주)현대공업
Publication of WO2022154522A1 publication Critical patent/WO2022154522A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable

Definitions

  • the present invention relates to a headrest assembly used for a seat.
  • the headrest is mounted on an upper end of a seat installed in a vehicle or the like.
  • the headrest supports the occupant's head in normal times, and in the event of a vehicle collision, the headrest supports the occupant's head to prevent neck injuries.
  • a headrest is also used as an object to which a monitor for viewing an image is attached to the back of the headrest.
  • the headrest is manufactured so that the rear occupant can linearly move it in the front/rear direction to watch the video in the vehicle.
  • the configuration for linear motion of the headrest has a large number of parts, so the structure is complicated and the manufacturing process is also difficult.
  • the headrest has a limit in slimming by adopting such a configuration. Considering the reality that the interior space of a car is becoming a work space or a rest space as the era of autonomous vehicles is in full swing, slimming the seat and headrest that occupies a lot of space in the interior space is also an urgent requirement. .
  • An object of the present invention is to provide a headrest assembly that provides a function of adjusting the position of a headrest, while being slimmer than the conventional one, and can meet the maximization of the interior space required in the era of autonomous vehicles.
  • a headrest assembly for realizing the above object includes: a stay; a mounting base coupled to the stay; a movable body disposed to surround the mounting base; and a front and rear drive module for driving the movable body in order to move in a front and rear direction perpendicular to the stay plane formed by the stay, wherein the front and rear drive module is disposed along the left and right direction perpendicular to the front and rear direction a first power source having a first rotating shaft and installed on the mounting base; a first swing unit connected to the first rotation axis and swinging along a first swing plane perpendicular to the first rotation axis; and a first conversion unit installed on the movable body and configured to convert the rotation of the first swing unit into movement along the front-rear direction of the movable body.
  • the first swing unit may include a connection part connected to the first rotation shaft; and a driving contact surface that is spaced apart from the connection part and is in contact with the first conversion unit.
  • the first swing unit may include an eccentric cam having an eccentric region as the connecting portion and an outer peripheral surface as the driving contact surface.
  • the first switching unit may include a restraining block having a driven contact surface in contact with the driving contact surface as an inner circumferential surface and accommodating the eccentric cam.
  • the driving contact surface has an arc-shaped cross section
  • the driven contact surface includes a pair of flat surfaces that are in contact with the driving contact surface and are parallel to each other, and the flat surfaces are perpendicular to the front-rear direction and the left-right direction. It may be arranged along one lifting direction.
  • the stay includes a pair of base frames
  • the mounting base includes: a plate disposed between the pair of base frames; and a pair of clamping parts connected to both ends of the plate and surrounding each of the pair of base frames, wherein at least one of the pair of clamping parts has a direction away from the other one of the pair of clamping parts. It has an open end that is open towards, through which it is possible to allow the base frame to be received in the clamping portion.
  • the open end may include a first open end corresponding to one of the pair of clamping parts; and a second open end corresponding to the other one of the pair of clamping parts, wherein the first open end and the second open end may be opened in opposite directions.
  • At least one of the pair of clamping parts may include: a first corresponding area and a second corresponding area facing each other with respect to an adjacent one of the pair of base frames; a connection region connecting the first corresponding region and the second corresponding region, the connection region being located on an opposite side of the open end; and a support block interposed between adjacent one of the first corresponding region, the second corresponding region, the connection region, and the pair of base frames.
  • one of the pair of clamping parts has a first insertion depth into which an adjacent one of the pair of base frames and the support block are inserted, and the other of the pair of clamping parts is the pair of base frames.
  • the first insertion depth may be greater than the second insertion depth.
  • the mounting base may be formed of a plastic resin material such that the plate and the pair of clamping parts are integrally formed.
  • a lift driving module for driving the mounting base is further included, wherein the elevating drive module includes a second rotation shaft, and the mounting base a second power source installed in; a second swing unit swinging in association with the second rotation shaft; and a second switching unit formed in the stay and converting rotation of the second swing unit into movement along the elevating direction of the mounting base and the movable body.
  • the second axis of rotation may be arranged perpendicular to the first axis of rotation.
  • the second swing unit may include a swing arm disposed on a second swing plane parallel to the stay plane.
  • the stay a pair of base frames coupled to the mounting base; and a connecting frame connecting the pair of base frames, wherein the second switching unit may include an accommodation slot formed in the connecting frame and movably accommodating one end of the swing arm.
  • the stay includes a pair of base frames
  • the mounting base includes: a plate disposed between the pair of base frames; and a pair of clamping parts connected to both ends of the plate and surrounding each of the pair of base frames, wherein the plate includes: a first region in which the first power source is installed; a second area in which the second power source is installed; and a third area positioned between the first area and the second area and in which the first turning unit is installed.
  • the third region may be opened through.
  • the mounting base may further include a partition wall protruding from the plate to partition the first region, the second region, and the third region.
  • the front-rear driving module drives the movable body in the front-rear direction.
  • he has a first swing unit rotated by a first power source, and a first switching unit is provided corresponding to the first swing unit to convert the rotation of the first swing unit into movement of the moving body along the front-rear direction, so that the head While allowing the rest to be positioned in the fore-and-aft direction, it is possible to minimize the width of the headrest along the fore-and-aft direction. This is significant as it responds to the maximization of interior space required in the era of autonomous vehicles.
  • the first power source has a first rotational axis perpendicular to the front-rear direction, and the first swing unit swings along a first swing plane perpendicular to the first rotational axis and along the front-rear direction.
  • the trajectory of the contact of the first swing unit with the first switching unit does not go back and forth in the left and right directions, so that the movable body is not twisted in the forward and backward movement, and an excessive force is not required from the first driving source for its movement. does not
  • FIG. 1 is an assembled perspective view of a headrest assembly 100 according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the headrest assembly 100 of FIG. 1 ,
  • FIG. 3 is an assembled perspective view of the main part of the headrest assembly 100 in FIG. 2 viewed from one direction;
  • FIG. 4 is an assembled perspective view of the main part of the headrest assembly 100 in FIG. 2 viewed from another direction;
  • FIG. 5 is a perspective view showing the mounting base (120, 130, 140) of Figure 2,
  • FIG. 6 is a conceptual diagram for explaining the main coupling relationship of the headrest assembly 100 of FIG. 2 .
  • FIG. 7 to 9 are cross-sectional views of the headrest assembly 100 taken along the line VII-VII of FIG. 1 to show the operation process of the front and rear driving module 160 step by step,
  • 10 to 12 are assembly perspective views of the main part of the headrest assembly 100 of FIG. 1 in order to show the operation process of the elevating driving module 170 in stages.
  • FIG. 1 is an assembled perspective view of a headrest assembly 100 according to an embodiment of the present invention.
  • the headrest assembly 100 forms most of the mechanical configuration of the headrest. After the cushion is added to this headrest assembly 100, if the outer skin is finally covered, it becomes a headrest.
  • This headrest is positioned above the seat back (not shown) of the vehicle, and is configured to support the head of the occupant.
  • the position of the headrest can be adjusted along the front-rear directions (F and B).
  • the headrest may also be positioned relative to the seat back in the lift direction (V).
  • the headrest assembly 100 specifically includes a stay 110 and a moving body 150 . Furthermore, when the headrest assembly 100 is driven by a power source, a manipulator may be further provided.
  • the stay 110 includes a base frame 111 (refer to FIG. 2) coupled to the seatback.
  • the base frame 111 is provided as a pair that is substantially parallel to each other, and may be disposed along the elevating direction (V). An upper portion of the base frame 111 may be located inside the movable body 150 .
  • the moving body 150 is configured to move relative to the stay 110 in the front-rear direction (F and B) while a part of the stay 110 is built-in.
  • the front-rear directions (F and B) may be defined as directions crossing the stay plane (STP, see FIG. 3 ) formed by the pair of base frames 111 .
  • the movable body 150 is wrapped with a cushion and finally finished by the outer skin, and serves to support the user's head.
  • the manipulator (not shown) is configured to receive a movement command from the user.
  • the movement command may be a command for moving the movable body 150 along the front-rear directions (F and B) or a command for moving the movable body 150 along the elevating direction (V). This movement is made according to the operation of the front/rear drive module 160 and the lift drive module 170 (refer to FIG. 2 above), which will be described later.
  • the manipulator may be installed in the moving body 150 , installed in another part of the vehicle, or integrated into other manipulation means.
  • FIGS. 2 to 4 A detailed configuration of the above headrest assembly 100 will be described with reference to FIGS. 2 to 4 .
  • FIG. 2 is an exploded perspective view of the headrest assembly 100 of FIG. 1
  • FIG. 3 is an assembled perspective view of the main part of the headrest assembly 100 of FIG. 2 viewed from one direction
  • FIG. It is an assembled perspective view of the main part of the headrest assembly 100 viewed from a different direction.
  • the headrest assembly 100 is, in addition to the aforementioned stay 110 and the moving body 150 , a plate 120 , a coupling unit 130 , a partition wall 140 , and a front and rear driving module (160), and may further include a lift driving module 170.
  • the stay 110 may further have a connection frame 115 in addition to the pair of base frames 111 .
  • the connection frame 115 connects the pair of base frames 111 to each other. Thereby, the stay 110 may have a 'U' shape as a whole.
  • the plate 120 may have a size corresponding to the area between the stay 110 , specifically, the pair of base frames 111 . Accordingly, the plate 120 may have a generally rectangular shape.
  • the plate 120 may be injection molded as a plastic resin. In that case, the plate 120 may be molded as an integral member together with the coupling unit 130 and the partition wall 140 to be described later.
  • the coupling unit 130 is configured to couple the plate 120 to the stay 110 , specifically, the base frame 111 .
  • the coupling unit 130 may be installed on at least one of both ends of the plate 120 .
  • the coupling unit 130 may be specifically implemented as a clamping part enclosing the base frame 111 .
  • the partition wall 140 is configured to protrude from the plate 120 in the rear direction (B).
  • the partition wall 140 and the plate 120 and further the coupling unit 130 may be collectively referred to as a mounting base in that the front and rear driving modules 160 and the elevating driving module 170 are installed.
  • the movable body 150 may have a guide pin 151 and bodies 155 and 156 .
  • the guide pins 151 are arranged along the front and rear directions F and B, and may be slidably inserted into the first guide hole 135 (and the second guide hole 136 ).
  • the guide pin 151 may be slidably disposed along the front and rear directions F and B while in contact with the base frame 111 .
  • the bodies 155 and 156 have a shape that surrounds the mounting base, the front/rear drive module 160, and the like, for example, a box shape. Specifically, the bodies 155 and 156 may be divided into a first body 155 and a second body 156 and fastened to each other. Here, both ends of the guide pin 151 may be coupled to the first body 155 or the second body 156 , respectively.
  • the front-rear driving module 160 is configured to drive the moving body 150 in the front-rear directions (F and B).
  • the front and rear driving module 160 may be mounted in a space defined by the plate 120 and the partition wall 140 .
  • the front and rear driving module 160 may have a first power source 161 , a first swing unit 164 , and first switching units 167 and 168 .
  • the first power source 161 generates rotational force, and may be, for example, an electric motor.
  • the first power source 161 has a first rotation shaft 162 .
  • the first rotation shaft 162 is disposed along the left and right directions L and R perpendicular to the front and rear directions F and B.
  • the first swing unit 164 is connected to the first rotation shaft 162 to swing.
  • the first swing unit 174 may have a connecting portion 164a and a driving contact surface 164b.
  • the connecting portion 164a is a portion to which the first rotating shaft 162 is connected.
  • the driving contact surface 164b is a portion spaced apart from the connection portion 164a, and becomes a portion in contact with the first switching units 167 and 168.
  • This first swing unit 164 is illustrated as an eccentric cam.
  • the eccentric cam is disposed to pass through the plate 120 while having a substantially wheel shape. In this case, the region eccentric from the center of the eccentric cam becomes the connecting portion 164a, and the outer peripheral surface of the eccentric cam becomes the driving contact surface 164b.
  • the driving contact surface 164b has an arc-shaped cross section.
  • the eccentric cam swings along the first swing plane SWP.
  • the first swing plane SWP is a plane generally perpendicular to the first rotation axis 162 , and is also substantially perpendicular to the stay plane STP.
  • the first swing unit 164 may have an arm shape. In that case, one end of the arm will be the connecting portion 164a, and the other end will be the driving contact surface 164b.
  • the first switching units 167 and 168 are configured to convert their rotation into movement along the forward and backward directions F and B of the movable body 150 by contact with the first swing unit 164 .
  • the first switching units 167 and 168 may be specifically constrained blocks.
  • the constraining block may include a first block 167 formed on the first body 155 and a second block 168 formed on the second body 156 .
  • the constraining block may be disposed in the center of the moving body 150 .
  • the first block 167 and the second block 168 meet each other to define a restraining space constraining the first swing unit 164 .
  • the constrained space is a space defined by the driven contact surfaces 167a and 168a of the first block 167 and the second block 168, respectively.
  • the driven contact surfaces 167a and 168a may be generally track-shaped spaces extending along the elevation direction V. In that case, the driven contact surfaces 167a and 168a may have flat surfaces 167b and 168b parallel to each other.
  • the eccentric cam pushes the flat surfaces 167b and 168b according to its turning, so that the movable body 150 is moved in the forward and backward directions (F and B).
  • the elevating driving module 170 is configured to drive the mounting base (and the movable body 150 ) in the elevating direction (V).
  • the lift driving module 170 is mounted on the plate 120 like the front and rear driving module 160 .
  • the lift driving module 170 may also have a second power source 171 , a second swing unit 174 , and a second switching unit 177 for electric driving.
  • the second power source 171 generates rotational force, and may be, for example, an electric motor.
  • the second power source 171 has a second rotation shaft 172 that outputs a rotational force.
  • the second rotation shaft 172 may be disposed substantially perpendicular to the previous first rotation shaft 162 . In this case, the second rotation shaft 172 passes through the plate 120 and is arranged along the front and rear directions F and B.
  • the second swing unit 174 swings in association with the second rotation shaft 172 .
  • the second swing unit 174 may be, for example, a swing arm disposed in the second swing plane.
  • the second swing plane may be a plane substantially parallel to the stay plane STP.
  • One end of the swing arm becomes a connection part 175 to which the second rotation shaft 172 is connected.
  • the other end of the swing arm has a receiving pin 176 .
  • the second switching unit 177 is configured to convert the rotation of the second swing unit 174 to movement along the elevation direction V of the movable body 150 .
  • the second switching unit 177 may be a receiving slot formed in the connection frame 115 .
  • the accommodating slots are arranged to extend along the left and right directions (L and R), and receive the accommodating pins 176 movably.
  • FIG. 5 is a perspective view illustrating the mounting bases 120 , 130 , and 140 of FIG. 2
  • FIG. 6 is a conceptual view for explaining a main coupling relationship of the headrest assembly 100 of FIG. 2 .
  • the plate 120 has a first width W 1 in the front and rear directions F and B.
  • the plate 120 may be divided into three regions in response to the mounting of the front/rear drive module 160 and the lift drive module 170 .
  • the plate 120 may be divided into a first region 121 , a second region 124 , and a third region 127 .
  • the first driving source 161 is installed in the first region 121
  • the second driving source 171 is installed in the second region 124 .
  • the third area 127 is located between the first area 121 and the second area 124 and is an area in which the first swing unit 164 is installed.
  • the third region 127 is opened through, so that the first swing unit 164 can swing in the front-rear directions (F and B) of the plate 120 .
  • the partition wall 140 is formed to partition the first region 121 to the third region 127 .
  • the partition wall 140 has an outer wall 141 and an inner wall 145 , and two inner walls 145 are arranged in an area defined by the outer wall 141 .
  • An opening 146 into which the first rotation shaft 162 (refer to FIG. 3 ) is inserted is formed in the inner wall 145 defining the first region 121 .
  • an opening 125 into which the second rotation shaft 172 (refer to FIG. 4 ) is inserted is formed in the first region 121 of the plate 120 .
  • the clamping part may have a first corresponding area 131 and a second corresponding area 132 disposed to correspond to each other in relation to the base frame 111 .
  • the first corresponding region 131 and the second corresponding region 132 may be disposed to face each other with respect to the base frame 111 .
  • the first corresponding region 131 and the second corresponding region 132 are illustrated as being parallel to each other, but may be arranged to be inclined to each other.
  • the first corresponding area 131 and the second corresponding area 132 are connected to each other by the connection area 133 .
  • At least one of the first corresponding region 131 and the second corresponding region 132 may be disposed to contact the base frame 111 .
  • the plate 120 may Two points may be supported with respect to the base frame 111 . Thereby, the pitching of the plate 120 with respect to the stay 110 is limited, and stable coupling and relative movement therebetween can be made
  • the first contact portion 131a and the second contact portion 132b may be in line contact extending along the elevating direction V with respect to the base frame 111 or may be in partial surface contact.
  • the coupling unit 130 has a second width (W 2 ) along the front and rear directions (F and B).
  • the second width W 2 is a width between the first corresponding region 131 and the second corresponding region 132 , and in the present embodiment, may correspond to the width of the connection region 133 .
  • the second width W 2 is greater than the first width W 1 of the plate 120 .
  • the coupling unit 130 also has a support block 134 (see FIG. 2 ) interposed between the first corresponding region 131 and the second corresponding region 132 , the connecting region 133 , and furthermore the base frame 111 .
  • the support block 134 is in contact with the base frame 111 and may be formed of a material having excellent lubricity.
  • the coupling unit 130 may further have a first guide hole 135 and further a second guide hole 136 .
  • the first guide hole 135 and the second guide hole 136 may be formed to pass through the clamping part. Specifically, if the first guide hole 135 is formed in the first corresponding area 131 , the second guide hole 136 may be formed in the second corresponding area 132 . The first guide hole 135 and the second guide hole 136 may be formed to correspond to each other. Unlike the above, the second guide hole 136 may not be provided, but only the first guide hole 135 may be provided. Furthermore, the first guide hole 135 may be formed in the plate 120 instead of the first corresponding region 131 . In addition, the coupling unit 130 may be slidably coupled along the elevation direction V with respect to the base frame 111 .
  • the guide pins 151 inserted into the guide holes 135 and 136 may have a third contact portion 151a in contact with the base frame 111 .
  • the third contact portion 151a forms a three-point support structure with respect to the base frame 111 together with the first and second contact portions 131a and 132a described above.
  • Open ends 137a and 137b may be formed in the clamping part.
  • the open ends 137a and 137b may be divided into a first open end 137a and a second open end 137b. If the first open end 137a corresponds to one of the pair of clamping portions, the second open end 137b corresponds to the other one of the pair of clamping portions.
  • the first open end 137a and the second open end 137b may be opened in opposite directions. Specifically, when the first open end 137a is opened toward the right direction R, the second open end 137b may open toward the left direction L. Referring to FIG.
  • the mounting base is erected in the elevating direction (V) and inserted between the pair of base frames 111, and then in the front and rear directions (F and B) Rotate him around an axis along Thereby, it is possible to couple the mounting base to the stay 110 in a simple manner despite the structure of the clamping portion.
  • one of the pair of clamping parts (on the side of the first open end 137a) has a first insertion depth into which the support block 134 and the base frame 111 are inserted, and the other (the second open end ( 137b) has a second insertion depth into which only the base frame 111 is inserted without the support block 134 .
  • the first insertion depth is greater than the second insertion depth.
  • Main components of the front/rear drive module 160 and the lift drive module 170 may be mounted on the plate 120 and occupy a mounting space formed by the above-described width difference ⁇ W(W 2 -W 1 ).
  • ⁇ W width difference
  • the front-rear drive module 160 and the elevating drive module 170 are employed, they are installed by occupying the mounting space by ⁇ W, so the front-rear direction (F and B) of the headrest assembly 100 is The extent to which the width is increased is not large.
  • the first width W 1 is 1.5 mm
  • the second width W 2 may be 15.8 mm.
  • the difference ?W between them becomes 14.3 mm. This ⁇ W is a factor that reduces the overall width of the headrest assembly 100 .
  • FIG. 7 to 9 are cross-sectional views of the headrest assembly 100 taken along the line VII - VII of FIG. 1 to show the operation process of the front and rear driving module 160 step by step.
  • the electric motor operates as the first power source 161 when the user operates the manipulator and the like.
  • the first rotation shaft 162 rotates
  • the first swing unit 164 connected thereto also rotates.
  • the first swing unit 164 passes through the plate 120 with the connection part 164a as the center and pivots along the front and rear directions F and B.
  • the driven contact surfaces 164b of the first swing unit 164 move along an arcuate trajectory about the first rotational axis 162 , while the driven contact surfaces 167a and 168a of the first shifting units 167 and 168 .
  • the driving contact surface 164b comes into contact with the pair of flat surfaces 167a and 168b among the driven contact surfaces 167a and 168a, thereby pushing the moving body 150 along the front-rear directions F and B.
  • the front-rear driving module 160 operates for a time according to the user's input, causing the bodies 155 and 156 to stop at the user's intended position along the front-back directions F and B.
  • a mechanical limit switch may be used or an electronic control may be used. During this operation, the mounting base is not moved along the fore-and-aft directions F and B.
  • the first swing unit 164 pivots in the first swing plane SWP, it is possible to accurately apply a force to the center of the movable body 150 . Thereby, the moving body 150 does not stagger when the first swing unit 164 is operated, and the force required for the first driving source 161 for its operation can also be reduced.
  • 10 to 12 are assembly perspective views of the main part of the headrest assembly 100 of FIG. 1 in order to show the operation process of the elevating driving module 170 in stages.
  • the electric motor operates as the second power source 171 by the user operating the manipulator or the like.
  • the second rotation shaft 172 rotates
  • the second swing unit 174 connected thereto also rotates.
  • the second swing unit 174 swings along the second swing plane, and accordingly, the receiving pin 176 moves in the left and right directions (L and R) along the receiving slot 177 . Accordingly, the mounting base is moved along the elevating direction (V).
  • the elevating driving module 170 operates for a time according to the user's input so that the mounting base stops at the user's intended position along the elevating direction (V).
  • a mechanical limit switch may be used or an electronic control may be used.
  • the movable body 150 moves up and down along the elevating direction V together with the mounting base.
  • the headrest assembly as described above is not limited to the configuration and operation method of the above-described embodiments.
  • the above embodiments may be configured so that various modifications may be made by selectively combining all or part of each of the embodiments.
  • the present invention has industrial applicability in the field of manufacturing headrest assemblies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

La présente invention concerne un ensemble appui-tête comprenant : un support ; une base de montage accouplée au support ; un corps mobile disposé de façon à entourer la base de montage ; une première source d'alimentation comprenant un module d'entraînement avant-arrière qui entraîne le corps mobile de façon à déplacer le corps mobile dans une direction avant-arrière perpendiculaire à un plan de support formé par le support et disposé sur la base de montage, le module d'entraînement avant-arrière ayant un premier arbre rotatif disposé dans une direction gauche-droite perpendiculaire à la direction avant-arrière ; une première unité d'oscillation reliée au premier arbre rotatif pour osciller le long d'un premier plan d'oscillation perpendiculaire au premier arbre rotatif ; et une première unité de conversion disposée sur le corps mobile et convertissant la rotation de la première unité d'oscillation en mouvement du corps mobile dans la direction avant-arrière.
PCT/KR2022/000649 2020-12-07 2022-01-13 Ensemble appui-tête WO2022154522A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20200169803 2020-12-07
KR1020210006877A KR102445092B1 (ko) 2020-12-07 2021-01-18 헤드레스트 어셈블리
KR10-2021-0006877 2021-01-18

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WO2022154522A1 true WO2022154522A1 (fr) 2022-07-21

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PCT/KR2022/000649 WO2022154522A1 (fr) 2020-12-07 2022-01-13 Ensemble appui-tête

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KR (2) KR102486229B1 (fr)
WO (1) WO2022154522A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970069550A (ko) * 1996-04-17 1997-11-07 양재신 자동차 시트의 헤드레스트
US20120126605A1 (en) * 2009-04-01 2012-05-24 Johnson Control Technology Company Headrest and vehicle seat
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