KR200483693Y1 - Device for moving a headrest of a rear seat for use passenger transportation means - Google Patents

Device for moving a headrest of a rear seat for use passenger transportation means Download PDF

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Publication number
KR200483693Y1
KR200483693Y1 KR2020150006451U KR20150006451U KR200483693Y1 KR 200483693 Y1 KR200483693 Y1 KR 200483693Y1 KR 2020150006451 U KR2020150006451 U KR 2020150006451U KR 20150006451 U KR20150006451 U KR 20150006451U KR 200483693 Y1 KR200483693 Y1 KR 200483693Y1
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KR
South Korea
Prior art keywords
headrest
seat
head insertion
passenger
ball screw
Prior art date
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KR2020150006451U
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Korean (ko)
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KR20170001242U (en
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박상욱
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박상욱
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Priority to KR2020150006451U priority Critical patent/KR200483693Y1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D33/00—Seats
    • B61D33/0007—Details; Accessories
    • B60N2/4805—
    • B60N2/4829—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0639—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with features for adjustment or converting of seats
    • B64D11/0642—Adjustable headrests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • B63B29/04—Furniture peculiar to vessels
    • B63B2029/043—Seats; Arrangements thereof on vessels
    • B63B2709/00—

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

This design allows the seat headrest to be automatically lowered by manipulation of the button to provide a space for the occupant to tilt his head backward and the lowered headrest to support the back neck of the passenger, A headrest driving apparatus for a seat for a passenger transporting vehicle which enables a driver to comfortably move over a long distance, the headrest driving apparatus comprising: a head insertion groove formed at an upper middle portion of a seatback so as to open upwardly and forwardly; A headrest having a top surface portion and a front surface portion corresponding to the head insertion groove and positioned on a front side of the head insertion groove; A driving motor provided on a rear side of the headrest and in a vertical direction inside the seatback, and a ball screw; A ball nut fixed to one end of the ball screw and fixed to the bottom of the headrest to connect the headrest and the ball screw; And an LM guide unit provided on a vertical support plate provided on a rear side of the ball screw to guide upward and downward movement of the ball nut.

Figure R2020150006451

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a headrest driving apparatus for a seat for a passenger transportation vehicle,

The present invention relates to a headrest driving apparatus for a passenger transporting apparatus, and more particularly, to a headrest driving apparatus for a passenger transporting apparatus which is capable of automatically forming a space in which a headrest of a passenger can be tilted backward, And the lowered headrest can support the rear neck of the passenger so that the passenger can move more comfortably over long distances.

BACKGROUND OF THE INVENTION [0002] Conventionally, passenger transportation means such as a train, a car, a ship, an airplane, etc. have a plurality of seats so that passengers can sit comfortably, and a head rest for supporting the back of the head of a passenger is provided on the seat. For example, a headrest driving device for a rear seat of a vehicle has been proposed, for example, in Japanese Patent No. 0322335 (issued on Mar. 02, 2002) as an example thereof .

As shown in Figs. 1 and 2B, the headrest driving apparatus of the above-described vehicle rear seat includes a seat cushion 2 on which a rear seat occupant sits, a seat cushion 2 arranged on the seat cushion 2, (4 ') disposed at a central portion of the rear seat, the seat back (4', 4 ', 4' A headrest 8 housed in a central seatback 4 'so as to move upward and downward in cooperation with the armrest 10; And a guide means for guiding the headrest (8) to be disposed at a second position when the armrest (10) is used, wherein the guide means comprises a center seatback A guide rail 14 fixed to the guide rail 4 ' And a guide pin 12 attached to a side surface of the headrest 8 so as to be able to slide up and down along the guide rail 14. [

The interlocking means includes a driving gear 20 rotatably mounted on a lower portion of the armrest 10 and a rotatably mounted lower portion of the central seatback 4 'to be actuated by the driving gear 20 A driving pulley 34 integrally rotatable with the driven gear 22; a driven pulley 32 rotatably mounted on the upper portion of the center seatback 4 ' Wherein the intermediate pulley is operatively wound on the driving pulley and the driven pulley so as to be interposed with the operation of the armrest so as to move the headrest upward and downward, And a belt 18 or a wire rope operatively connecting the pulley 34 and the driven pulley 32 to each other.

However, in such a conventional headrest driving apparatus for a rear seat of a vehicle, particularly in the case of an airplane seat, the headrest is simply laid on the seat such as the head of the passenger, It has to take care of movement, and this has caused a problem of increasing physical fatigue as well as physical pain.

Registered Patent No. 0322335 (published on Mar. 02, 2002.) "Headrest driving device for rear seat of vehicle"

The object of the present invention is to solve the above-mentioned problems of the related art, and the object of the present invention is to provide a seat for a seat, wherein a headrest of a seat is automatically lowered or unfolded by a button operation, And the lowered or unfolded headrest can support the back neck of the passenger so that the passenger can move in a more comfortable position over a longer distance.

According to an aspect of the present invention, there is provided a headrest driving apparatus for a seat for a passenger transport vehicle, comprising: a head insertion groove formed at an upper middle portion of a seatback so as to be opened upward and forward; A headrest having a top surface portion and a front surface portion corresponding to the head insertion groove and positioned on a front side of the head insertion groove; A driving motor provided on a rear side of the headrest and in a vertical direction inside the seatback, and a ball screw; A ball nut fixed to one end of the ball screw and fixed to the bottom of the headrest to connect the headrest and the ball screw; And an LM guide unit provided on a vertical support plate provided on a rear side of the ball screw to guide the ball nut to move up and down.

According to another aspect of the present invention, there is provided a headrest driving apparatus for a passenger transportation means seat, comprising: a head insertion groove formed in an upper half of a seatback so as to open forward; A headrest having an area corresponding to the head insertion groove and both sides of the lower portion being rotatably housed inside the head insertion groove by a hinge axis; And a driving unit for transmitting the power of the driving motor to the hinge shafts on both sides of the headrest so that the headrest can be folded and unfolded around the hinge axis.

According to another aspect of the present invention, there is provided a headrest driving apparatus for a passenger transportation means seat, comprising: a head insertion groove formed in an upper half of a seatback so as to open forward; A headrest having an area corresponding to the head insertion groove and both lower sides of which are rotatably housed in the head insertion groove by a hinge shaft; And a click fixing part for supporting and fixing both side hinge shafts of the headrest by a laminating force of a leaf spring and rotating the hinge axis with a force larger than a laminating force of the leaf spring. The click fixing part may include a click ball formed at a plurality of equal intervals along the hinge axis of both sides of the headrest; A leaf spring having a plurality of click grooves formed to bend along the outside of the click ball and into which the click ball is inserted; And a fixing bracket integrally formed on the rear side of the leaf spring and having a through hole through which a hinge shaft passes at a central portion and having a fastening hole at each corner portion.

As described above, according to the present invention, a space is formed in which a headrest of a seat is automatically lowered or unfolded by a button operation so that a passenger can tilt his head backward, and the lowered headrest can support a back neck portion of a passenger So that the passengers can move in a more comfortable position over a long distance, thereby reducing the physical pain and fatigue caused by long-time movement while sitting on the seat.

1 is a front view of a rear seat provided with a headrest driving device of a conventional rear seat for a vehicle.
2A and 2B illustrate an operating state of the headless driving apparatus of the rear seat for a vehicle of FIG. 1,
2A is a side cross-sectional view showing a state in which the headrest and the armrest interlock with each other so that the headrest moves upward and the armrest is folded.
FIG. 2B is a side sectional view showing a state in which the headrest and the armrest cooperate to move the headrest downward, and the armrest is unfolded. FIG.
Figs. 3A to 4B show a first embodiment of the present invention,
3A is a perspective view showing a state before the headrest is operated.
3B is a perspective view showing an operating state of the headrest.
Fig. 3c is a perspective view showing a state in which a passenger is seated in Fig. 3b. Fig.
Fig. 4A is a perspective view showing the overall structure of a headrest driving apparatus for a passenger transporting means seat according to the present invention; Fig.
Figure 4b is a side cross-sectional view of Figure 4a.
5 is a perspective view showing a second embodiment of the present invention;
6A and 6B show a third embodiment of the present invention,
6A is a partially enlarged perspective view.
6B is a cross-sectional view of the click portion of Fig. 6A. Fig.

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

3B is a perspective view showing an operating state of the headrest, and FIG. 3C is a sectional view of the headrest shown in FIG. 3B. FIG. 3A is a perspective view showing a state before the headrest is operated, It is a perspective view showing a state where a passenger is seated. 3A, the seat 100 to which the present invention is applied has a seatback 103 integrally formed in the vertical direction behind the seat cushion 101 provided with the armrests 102 on both sides And a headrest 111 is provided in the middle of the upper side of the seatback 103. In this state, the passenger sits on the seat 100 and leans his or her head and the headrest 111 supports the back of the head of the passenger do.

In the state shown in FIG. 3A, the headrest 111 is lowered by operating the apparatus according to the present invention by pressing a headrest lowering operation button (not shown) provided on the seat 100. FIG. When the headrest 111 is lowered, a head insertion groove 110 opens to the upper side of the seatback 103 as shown in FIG. 3B, that is, the front and the upper side, and the passenger sitting on the seat 100 As shown in FIG. 3C, the head rest 111 is pushed back into the head insertion groove 110 with the head slightly inclined backward. The lowered head rest 111 supports the rear neck portion of the passenger, It will be. When the rising headrest raising operation button of the seat is pressed in this state, the headrest 111 can be returned to the state of FIG. 3A again.

FIG. 4A is a perspective view showing the overall structure of a headrest driving apparatus for a passenger transportation means seat according to the present invention, and FIG. 4B is a side sectional view of FIG. 4A, A headrest 111 having an upper face portion 111a and a front face portion 111b corresponding to the groove 110 is provided so that the headrest 111 can be automatically moved up and down by a mechanical operation And a driving means for minimizing noise is provided. The driving means is provided with a driving motor 112 and a ball screw 113 on the rear side of the headrest 111 and inside the seatback 103 and is connected to the ball screw 113 by the connecting rod 114, A ball nut 115 is integrally formed at one end of the connecting rod 114 so as to be coupled to the ball screw 113 and the other end of the connecting rod 114 is connected to the headrest 111 As shown in Fig. The ball screw 113 of the connecting rod 114 is movably guided and supported by the LM guide part 116 so that the ball screw 113 of the connecting rod 114 can move more stably without noise .

The LM guide unit 116 includes a pair of guides 116b in the vertical direction on both sides of a vertical support plate 116a provided on the rear side of the ball screw 113, A pair of LM blocks 116d are connected to the pair of LM blocks 116d on the front side of the conveyance belt 116c by a transverse conveyance belt 116c, And a ball nut 115 coupled to the ball screw 113 is connected.

The ball screw 113 is rotated in the forward and reverse directions by the operation of the driving motor 112 when the operation signal is transmitted to the driving motor 112 by pressing the up or down button provided on the seat 100, And the ball nut 115 of the connecting rod 114 spirally coupled to the ball screw 113 moves up and down on the ball screw 113. The head rest 111 fixed to the connecting rod 114 moves upward and downward together with the ball nut 115 to expose or cover the head insertion recess 110 of the seat 100, The LM block 116d of the conveyance table 116c moves in the vertical direction along the guide 116b of the support plate 116a to guide and support the ball nut 115 stably without noise .

5 is a perspective view showing a second embodiment of the present invention in which the headrest 121 is formed to be open to the front side of the seatback 103 while rotating about the hinge shaft 121a without moving up and down. So that the head insertion groove 120 can be concealed or exposed. To this end, both side hinge shafts 121a of the headrest 121 are rotatably supported by bearings 122a. One side hinge shaft 121a is provided with a gear A 122c constituting the driving portion 122, And a gear B 122f engaged with the gear A 122c is provided on the motor shaft 122e of the drive motor 112. [ The rotational force of the driving motor 112 transmits the gear A 122c through the motor shaft 122e and the gear B 122f and the headrest 121 is rotated by the gear A 122c to the hinge shaft 121a, The headrest 121 is supported by the back of the neck so that the headrest 121 is supported by the headrest 121. As a result, You will be able to take posture. Here, the reference numeral 122b is a bearing housing.

FIGS. 6A and 6B show a third embodiment of the present invention, wherein FIG. 6A is a partially enlarged perspective view, and FIG. 6B is a sectional view of a click part of FIG. 6A. The feature here is that the passenger can directly fold and unfold the headrest 121, allowing the rotational angle to be freely adjusted to the preference of the passenger. To this end, the present invention has a click fixing part 123 provided on a hinge shaft 121a. The click fixing part 123 has a click ball 123a integrally formed at a plurality of equally spaced positions around the hinge shaft 121a And a leaf spring 123c formed on the outer side of the click ball 123a so as to be bent along the click ball 123a. The leaf spring 123c includes a number of clicks 123a corresponding to the click ball 123a, Groove 123b and one side of the plate spring 123c is fixed and supported by a plate-shaped fixing bracket 123d. The fixing bracket 123d is formed with a through hole 123f through which the hinge shaft 121a passes and a fixing bracket 123d is fixed to the inside of the seatback 103 by bolts So that a fastening hole 123e is formed.

In the present invention configured as described above, when the headrest 121 is folded to use a state in which the head insertion groove 120 is concealed, and a more comfortable posture is required due to sleeping or the like, the headrest 121 is forcibly held and unfolded . At this time, the open angle can be adjusted to an angle desired by the passenger. 6B, each click ball 123a formed at regular intervals along the circumference of the hinge shaft 121a is inserted into the click groove 123b of each plate spring 123c, So that the hinge shaft 121a is kept fixed. In this state, when the headrest 121 is manually held and rotated by a force greater than the leaf spring force of the leaf spring 123c, the click balls 123a of the hinge shafts 121a formed on both sides of the headrest 121 The click ball 123a of each of the hinge shafts 121a is pressed by the click of the adjacent leaf spring 123c when the hinge shaft 121a is rotated to overcome the laminating force of the leaf spring 123c and forcibly stops rotating the hinge shaft 121a. So that the rotation angle of the headrest 121 can be maintained.

In this way, a space is formed in which the headrest of the seat is automatically lowered or unfolded by the operation of the button to allow the occupant to tilt the head backward, and the lowered headrest can support the back neck portion of the passenger, It is possible to move a long distance in a more comfortable posture, thereby reducing the physical pain and fatigue caused by long-time movement while sitting on a seat.

While the present invention has been described in detail above with reference to the preferred embodiments of the present invention, the present invention is not limited thereto. The range is determined and limited by the range. It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the spirit and scope of the invention.

100: Seat 101: Seat cushion
102: Armrest 103: Seatback
110, 120: head insertion groove 111, 121: headrest
111a: upper surface portion 111b: front surface portion
112, 122d: drive motor 113: ball screw
114: connecting rod 115: ball nut
116: LM guide part 116a: Support plate
116b: guide 116c:
116d: LM block 121a: Hinge axis
122: driving part 122a: bearing
122b: bearing housing 122c: gear A
122e: motor shaft 122f: gear B
123: Click the ball 123a: Click ball (click ball)
123b: click groove 123c: leaf spring
123d: Fixed bracket 123e: Fixed hole
123f: through hole

Claims (4)

delete delete delete A head insertion groove 120 formed to be open to the front side in the upper middle of the seat back 103;
A headrest 121 having an area corresponding to the head insertion slot 120 and having both lower sides rotatably formed in the head insertion slot 120 by a hinge shaft 121a;
A click ball 123a formed at a plurality of equal intervals around the hinge shafts 121a of the headrest 121 and a click ball 123a formed bending along the outer side of the click ball 123a, And a through hole 123f integrally formed on the rear side of the leaf spring 123c and passing through the hinge shaft 121a at the center thereof is formed in the center of the plate spring 123c, , And a click fixing part (123) formed of a fixed bracket (123d) having a fastening hole (123e) is provided at each corner of the headrest driving part.




KR2020150006451U 2015-10-01 2015-10-01 Device for moving a headrest of a rear seat for use passenger transportation means KR200483693Y1 (en)

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Application Number Priority Date Filing Date Title
KR2020150006451U KR200483693Y1 (en) 2015-10-01 2015-10-01 Device for moving a headrest of a rear seat for use passenger transportation means

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Application Number Priority Date Filing Date Title
KR2020150006451U KR200483693Y1 (en) 2015-10-01 2015-10-01 Device for moving a headrest of a rear seat for use passenger transportation means

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KR20170001242U KR20170001242U (en) 2017-04-11
KR200483693Y1 true KR200483693Y1 (en) 2017-06-14

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107009925A (en) * 2017-04-18 2017-08-04 陈龙刚 Seat with arrival reminding and assisting sleep function
KR101983711B1 (en) * 2017-11-20 2019-05-29 신복영 Apparatus for cervical disk prevention and strengthening of muscle for automobile
US10703485B2 (en) * 2018-03-19 2020-07-07 The Boeing Company Transformable headrest for aircraft seating
CN108609026A (en) * 2018-05-04 2018-10-02 旌德县瀚海星云智能化技术研发有限公司 Train seat special
CN108909562A (en) * 2018-05-29 2018-11-30 佛山鑫达智汇科技有限公司 A kind of seat chair with adjustable headrest of new-energy automobile
US20210061474A1 (en) * 2019-08-26 2021-03-04 B/E Aerospace, Inc. Configurable Cabin Attendant Seat

Citations (1)

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Publication number Priority date Publication date Assignee Title
KR200330798Y1 (en) * 2003-07-23 2003-10-22 정장훈 Multi function with a desk

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Publication number Priority date Publication date Assignee Title
JP2751796B2 (en) * 1993-08-30 1998-05-18 池田物産株式会社 Headrest device for vehicle seat
KR19980039691U (en) * 1996-12-20 1998-09-15 박병재 Headrest tilt assembly
KR100322335B1 (en) 1999-12-24 2002-02-07 김민박,라이문트하이넨 Device for moving a headrest of a rear seat for use in an automobile
KR200189730Y1 (en) * 2000-02-25 2000-07-15 김봉석 A slab having a stone-bed

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200330798Y1 (en) * 2003-07-23 2003-10-22 정장훈 Multi function with a desk

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