KR20190040579A - Controlling apparatus of headrest - Google Patents

Controlling apparatus of headrest Download PDF

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Publication number
KR20190040579A
KR20190040579A KR1020170129711A KR20170129711A KR20190040579A KR 20190040579 A KR20190040579 A KR 20190040579A KR 1020170129711 A KR1020170129711 A KR 1020170129711A KR 20170129711 A KR20170129711 A KR 20170129711A KR 20190040579 A KR20190040579 A KR 20190040579A
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KR
South Korea
Prior art keywords
fixing member
fixing
headrest
rod
spring
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Application number
KR1020170129711A
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Korean (ko)
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KR101972509B1 (en
Inventor
정해일
Original Assignee
주식회사 우보테크
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Application filed by 주식회사 우보테크 filed Critical 주식회사 우보테크
Priority to KR1020170129711A priority Critical patent/KR101972509B1/en
Priority to PCT/KR2018/006813 priority patent/WO2019074186A1/en
Publication of KR20190040579A publication Critical patent/KR20190040579A/en
Application granted granted Critical
Publication of KR101972509B1 publication Critical patent/KR101972509B1/en

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    • 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
    • B60N2/838—Tiltable
    • B60N2/856—Tiltable movable to an inoperative or stowed position
    • 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
    • B60N2/809—Head-rests movable or adjustable vertically slidable
    • 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
    • B60N2/838—Tiltable

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

Abstract

The present invention relates to a headrest adjusting device, comprising: a first fixing member formed on a first member; and a second fixing member slidably mounted on the second member to fix the position of the headrest, Wherein one of the first fixing member and the second fixing member has a fixing groove formed in a vertical direction and a fixing protrusion inserted into the fixing groove is formed in the other of the first fixing member and the second fixing member so that the structure of the apparatus is simple, The present invention relates to a headrest adjusting device in which the device is lightweight, the device becomes compact, and the device can be applied to an existing stay rod.

Description

[0001] The present invention relates to a control apparatus for headrest,

The present invention relates to an apparatus for adjusting the position or angle of a headrest.

Generally, a headrest for a car serves as a pillow that comfortably supports the head of a passenger in a normal state. When an accident occurs, the headrest is supported so as not to be bent backward so that a backrest of the neck can be prevented. And the headrest can be adjusted by folding or tilting the headrest according to the convenience of the occupant in the conventional headrest.

Conventional headrests are disclosed in Korean Patent Registration No. 10-1171234, Korean Patent Registration No. 10-1044067, Korean Patent Registration No. 10-1071615, Korean Patent Registration No. 10-0982796, and the like.

Korean Patent Registration No. 10-1171234 (hereinafter referred to as Patent Document 1) discloses an apparatus for tilting a headrest. The headrest moving apparatus of Patent Document 1 includes a first link provided on a stay rod of a headrest, a second link and a third link rotatably installed on the first link, And a control member having one end rotatably connected to the first link or the third link and the other end rotatably connected to the fourth link or the second link The adjusting member includes a notch-formed rod, a guide formed with a first through-hole through which the rod passes, a second through-hole slidably installed in the guide, into which the rod is inserted, And a spring for exerting an elastic force on the pressing portion. However, in the headrest moving apparatus of Patent Document 1, the cover of the headrest should be provided on the fourth link and have the first, second, third and fourth links. As a result, the number of parts becomes extremely large, which makes it difficult to assemble the apparatus, increase the weight of the apparatus, and increase the manufacturing cost.

Korean Patent Registration No. 10-0982796 (hereinafter referred to as Patent Document 2) discloses an apparatus for folding a headrest. The headrest of Patent Document 2 has a ratchet member that is axially coupled to a horizontal portion of a stay rod, a pivot member that engages a shaft hole formed at the lower portion of both side plates so that the ratchet member contacts the inner surface of the one side plate, A return spring which is coupled to the horizontal portion between the inner surface of the member and the inner surface of the other side plate of the tilting member and whose inner end is hooked to the ratchet member and whose outer end is hooked to the tilting member, When the engagement state with the ratchet member is maintained, the braking member is braked so as to keep the rotation member in a standing state, and when the engagement state is released, A braking member for allowing the braking member to be laid down by the elasticity of the return spring, and a braking member for braking the braking member by engaging with the braking member, That maintains the engaging state of the brake member and the ratchet member and a releasing member, which brake spring and to release the engaging state of the brake element. The headrest of Patent Document 2 forms a shaft hole into which the horizontal portion of the stay rod is inserted, and the headrest is rotated about the horizontal portion of the stay rod. Therefore, in order to assemble the head rest and the stay rod, the horizontal portion and the vertical portion of the stay rod must be separately provided, and the horizontal portion and the vertical portion must be connected after assembly. As a result, the headrest of Patent Document 2 is extremely complicated in the assembling process, and can not be applied to conventional stay rods, and the distance from the stay rod to the front lower corner of the apparatus becomes large, There is a problem in that it is required to be thin. In addition, the headrest of Patent Document 2 has a problem that the number of components increases because the cover is connected to the pivotal member and the pivotal member is separately provided.

Korean Patent Registration No. 10-1171234 Korean Patent Registration No. 10-1044067 Korean Patent Registration No. 10-1071615 Korean Patent Registration No. 10-0982796

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a headrest adjusting device, which is simple in structure, has a very small number of parts, The purpose of the device is to provide.

According to an aspect of the present invention, there is provided a headrest adjusting device comprising: a first member connected to one of a seat and a headrest; a second member connected to the other of the seat and the headrest, A first fixing member formed on the first member and a second fixing member slidably mounted on the second member and fixing the position of the headrest, One of the first fixing member and the second fixing member has a fixing groove formed in a vertical direction and a fixing protrusion inserted into the fixing groove is formed in the other of the first fixing member and the second fixing member.

The first member may be a stay rod, and the second member may be a headrest cover.

The headrest cover may be provided with a stay rod coupling portion to which the stay rod is rotatably coupled.

The second fixing member may be formed with a support portion supported by the first fixing member.

The support portion may be disposed forward or rearward of the pivot center of the second member.

The fixing groove may be formed in the first fixing member, and the fixing protrusion may be formed in the second fixing member.

The portion of the first fixing member where the fixing protrusion contacts when the second member rotates with respect to the first member may be formed in an arc shape.

The first fixing member may include a bottom plate and a side plate. The fixing groove may be formed in the side plate, and the second fixing member may be formed with a support portion supported by the bottom plate.

Wherein the first member is a stay rod, the second member is a headrest cover, the first fixing member includes a bottom plate and a side plate, the fixing groove is formed on the side plate, And a support portion supported by the bottom plate may be formed.

A driving member for sliding the second fixing member, and a second fixing member spring for returning the second fixing member, wherein the driving member is provided with a wire, A wire spring may be provided, and the tension of the wire spring and the tension of the second fixing member spring may be different.

The tension of the wire spring may be greater than the tension of the second fixing member spring.

And a driving member for sliding the second fixing member, wherein the driving member is provided with a button member including a button slidably mounted to the second member in a lateral direction, and the button and the second fixing member One of which is formed with an interlocking projection, and the other of which has an inclined face contacting with the interlocking projection.

The driving member may further include a first driving member provided with a wire and a second driving member provided with a button member.

According to the headrest adjusting apparatus of the present invention as described above, the following effects can be obtained.

A first fixing member formed on the first member and a second fixing member slidably mounted on the second member to fix the position of the headrest, wherein the first fixing member and the second fixing member One fixing groove is formed in the vertical direction and the other fixing protrusion is inserted into the fixing groove to simplify the structure of the apparatus, the number of parts is extremely small, the apparatus is lightweight, the apparatus becomes compact, It can also be applied to existing stay rods.

Wherein the first member is a stay rod, the second member is a headrest cover, and the headrest cover is formed with a stay rod coupling portion in which the stay rod is rotatably coupled, whereby the number of parts of the apparatus can be further reduced, It can be easily applied to an existing stay rod.

The second fixing member is provided with a support portion supported by the first fixing member. The support portion is disposed forwardly or rearwardly of the rotational center of the second member, so that even if an impact is applied from the front or rear, The position is stably fixed, the number of parts is prevented from increasing, and the structure is simplified. Further, the load is not concentrated in the fixing projections and the fixing grooves but is dispersed in the supporting portions, so that the durability of the apparatus is improved.

The fixing groove is formed in the first fixing member and the fixing protrusion is formed in the second fixing member so that the second fixing member is not required to be continuously held when the headrest is adjusted.

A portion of the first fixing member that is in contact with the fixing protrusion when the second member rotates with respect to the first member is formed in an arc shape so that the second member can be smoothly rotated with respect to the first member .

Wherein the first fixing member includes a bottom plate and a side plate, the fixing groove is formed in the side plate, and the second fixing member is formed with a support portion supported by the bottom plate so that the volume of the device is reduced, .

A driving member for sliding the second fixing member, and a second fixing member spring for returning the second fixing member, wherein the driving member is provided with a wire, A wire spring is provided and the tension of the wire spring and the tension of the second fixing member spring are different so that the working distance of the second fixing member and the working distance of the wire can be made different.

The tension of the wire spring is greater than the tension of the second fixing member spring so that the second fixing member is moved immediately when the wire is pulled out so that operation of the apparatus can be performed quickly.

And a driving member for sliding the second fixing member, wherein the driving member is provided with a button member including a button slidably mounted to the second member in a lateral direction, and the button and the second fixing member One of the first fixing member and the second fixing member is formed with an interlocking projection and the other has an inclined surface contacting the interlocking projection so that the second fixing member can be easily moved up and down through the button member.

The driving member further includes a first driving member provided with a wire and a second driving member provided with a button member, thereby improving the usability.

1 is a perspective view of a headrest adjusting apparatus according to a first embodiment of the present invention;
FIG. 2 is a perspective view of the headrest adjusting device according to the first embodiment of the present invention when viewed from the front. FIG.
FIG. 3 is a rear perspective view of the headrest adjusting device according to the first embodiment of the present invention. FIG.
4 is a perspective view of the headrest adjusting device according to the first embodiment of the present invention as viewed from the front (the first headrest cover is omitted).
5 is a perspective view of the headrest adjusting device according to the first embodiment of the present invention as seen from the rear (the second headrest cover is omitted).
FIG. 6 is a perspective view of the first and second fixing members of the headrest adjusting device according to the first embodiment of the present invention, as viewed from the front; FIG.
7 is a cross-sectional view (upright state) of the headrest adjusting device according to the first embodiment of the present invention.
FIG. 8 is a sectional view showing a movement of a second fixing member of the headrest adjusting apparatus according to the first embodiment of the present invention; FIG.
9 is a sectional view (folded state) of the headrest adjusting device according to the first embodiment of the present invention.
10 is a perspective view of a headrest adjusting apparatus according to a second embodiment of the present invention.
11 is a perspective view of the headrest adjusting device according to the second embodiment of the present invention, when viewed from the front.
12 is a front view of a headrest adjusting apparatus according to a second embodiment of the present invention (the first headrest cover is omitted).
FIG. 13 is a front view showing the movement of the second fixing member of the headrest adjusting device according to the second embodiment of the present invention; FIG.
FIG. 14 is a perspective view of a headrest adjusting apparatus according to a third embodiment of the present invention; FIG.
15 is a front view of a headrest adjusting apparatus according to a third embodiment of the present invention (the first headrest cover is omitted)

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

For reference, the same components as those of the conventional art will be described with reference to the above-described prior art, and a detailed description thereof will be omitted.

If any part is referred to as being " on " another part, it may be directly on the other part or may be accompanied by another part therebetween. In contrast, when referring to a part being "directly above" another part, no other part is interposed therebetween.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Terms representing relative space, such as " below ", " above ", and the like, may be used to more easily describe the relationship to another portion of a portion shown in the figures. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain parts that are described as being " below " other parts are described as being " above " other parts. Thus, an exemplary term " below " includes both up and down directions. The device may be rotated 90 degrees before or at another angle, and the term indicating relative space is interpreted accordingly.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

< First Embodiment >

The headrest adjusting apparatus according to the first embodiment is an apparatus for folding a headrest.

1 to 9, the headrest adjusting apparatus of the first embodiment includes a first member connected to any one of a seat (not shown) and a headrest (not shown) A second member connected to the other one of the first member and the second member and rotatably mounted on the first member, a first fixing member 300 formed on the first member, And a second fixing member 400 for fixing the position of the headrest. One of the first fixing member 300 and the second fixing member 400 has a fixing groove 302 formed in a vertical direction, And a fixing protrusion 401 inserted into the fixing groove 302 is formed in the other.

Hereinafter, the width direction of the vehicle will be referred to as the left and right direction, the longitudinal direction of the vehicle will be referred to as the forward and backward directions, and the up and down direction of the vehicle will be referred to as the up and down direction. Specifically, the side closer to the head of the occupant is referred to as the front, and the opposite side is referred to as the rear.

In this embodiment, the first member is connected to the seat, and the second member is connected to the headrest. Alternatively, the first member may be connected to the headrest, and the second member may be connected to the seat.

As shown in FIG. 1, in the present embodiment, the first member is provided as a stay rod 100, and the second member is provided as a headrest cover 200.

The stay rod 100 includes a first rod 110 disposed in a vertical direction and a second rod 120 disposed horizontally in a horizontal direction on an upper portion of the first rod 110. The first rod 110 and the second rod 120 are formed as hollow pipes. The first rod 110 and the second rod 120 may be integrally formed or separately formed. An inclined portion 111 is formed at an upper end of the first rod 110 so that the second rod 120 is disposed forward of the first rod 110. The inflow hole 101 is formed in the one inclined portion 111 so that the upper portion thereof is opened.

The headrest cover 200 is rotatably mounted on the stay rod 100.

The headrest cover 200 is formed to correspond to the shape of the headrest. The headrest is formed by surrounding a cushion (not shown) on the headrest cover 200.

The headrest cover 200 is formed of a synthetic resin material and is manufactured through injection or the like.

The headrest cover 200 includes front and rear surfaces and upper and lower surfaces and both side surfaces of the second rod 120 of the stay rod 100 and the upper and lower ends of the first and second fixing members 300 and 400 And covers the front and rear sides. That is, the headrest cover 200 is formed so as to surround the upper and lower portions and front and rear sides of the apparatus.

The headrest cover 200 is divided into at least a first headrest cover 210 and a second headrest cover 220.

The first headrest cover 210 is disposed in front of the second headrest cover 220. That is, the first headrest cover 210 is formed with the front surface of the headrest cover 200 and the second headrest cover 220 is formed with the rear surface of the headrest cover 200. The top and bottom surfaces and side surfaces of the headrest cover 200 may be formed on only one of the first headrest cover 210 and the second headrest cover 220 or on both sides thereof.

The first headrest cover 210 and the second headrest cover 220 are integrally formed.

In the headrest cover 200, a stay rod coupling portion is formed in which the second rod 120 of the stay rod 100 is rotatably coupled. That is, the headrest cover 200 is directly connected to the stay rod 100 in a rotatable manner. Thus, the stay rod 100 is directly connected to the headrest cover 200, and the distance from the center of the second rod 120 to the front lower corner of the apparatus becomes shorter than the conventional one.

A through hole through which the second rod 120 is inserted is formed in the stay rod coupling portion to pass through in the left and right direction.

At least one separating portion is formed in one stay rod coupling portion, and the through hole can communicate with the outside. The second rod 120 can be inserted into the through hole through the separating part so that the second rod 120 can be inserted into the headrest cover 200 without separating the first rod 110 and the second rod 120. [ ). &Lt; / RTI &gt;

One of the stay rod coupling portions is formed by being divided into the first headrest cover 210 and the second headrest cover 220. That is, one of the stay rod coupling portions is formed by being divided into a first stay rod coupling portion 211 and a second stay rod coupling portion 221. The first stay rod coupling portion 211 is integrally formed with the first headrest cover 210 and the second stay rod coupling portion 221 is formed integrally with the second headrest cover 220. The first stay rod coupling portion 211 is disposed at the front of the second rod 120 and the second stay rod coupling portion 221 is disposed at the rear of the second rod 120. Therefore, the separation part is formed in the stay rod coupling part, and the separation part is formed in the upper part and the lower part, respectively. Accordingly, one through-hole is formed by being divided into the first headrest cover 210 and the second headrest cover 220. A portion of the through hole formed in the first stay rod coupling portion 211 is formed to open rearward and the remaining portion of the through hole formed in the second stay rod coupling portion 221 is formed to open forward.

The first stay rod coupling portion 211 and the second stay rod coupling portion 221 are coupled as the first headrest cover 210 and the second headrest cover 220 are coupled.

The stay rod coupling portion is formed on both lower sides of the first headrest cover 210 and the second headrest cover 220, respectively.

The first and second fastening portions 215 and 225 are formed on the first headrest cover 210 and the second headrest cover 220 so that the first headrest cover 210 and the second headrest cover 220 . The bolts are fastened to the first and second fastening portions 215 and 225. A fastening hook 219 is formed at the edge of the first headrest cover 210 to assemble the first headrest cover 210 and the second headrest cover 220. The second headrest cover 220 A fastening hole 229 into which a fastening hook 219 is inserted is formed.

In the interior of the headrest cover (200), second fixing member flow spaces (213, 223) are formed between the stay rod fitting portions on both sides. The second fixing member flow spaces 213 and 223 are vertically formed and divided into a first headrest cover 210 and a second headrest cover 220. The second fixing member 400 described below is disposed in the second fixing member flow spaces 213 and 223 so that the second fixing member 400 can be moved up and down with respect to the headrest cover 200. The second fixing member flow spaces 213 and 223 are formed such that the second fixing member 400 is not moved or rotated in the front-back direction with respect to the headrest cover 200.

A cutout portion into which the first rod 110 is inserted is formed on the lower surface of the headrest cover 200 and the lower and front and rear surfaces thereof. The incision portions are formed on both sides of the headrest cover 200, respectively. The cut-out portion is formed such that the stay rod coupling portion and the second fixing member flow space (213, 223) are disposed between the cut-out portions on both sides. The headrest cover 200 is not interfered with the first rod 110 when folded through the cutout. The incision part is formed by dividing into a first incision part 216 formed on the first headrest cover 210 and a second incision part 226 formed on the second headrest cover 220.

Further, a first fixing member insertion portion into which the rear and front of the first fixing member 300 described below are inserted is formed in the rear of the first headrest cover 210 and in front of the second headrest cover 220. The first fixing member insertion portion is formed by the stay rod coupling portions disposed on both sides. That is, the rear and front of the first fixing member 300 are inserted between the stay rod coupling portions disposed on both sides. Due to the first fixing member insertion portion, when the headrest cover 200 is rotated forward or backward with respect to the stay rod 100, the headrest cover 200 is guided not to move in the lateral direction.

The second headrest cover 220 is provided with a damper 230. The damper 230 is disposed on both sides of the stay rod coupling portion. The damper 230 is in contact with the inclined portion 111 when the headrest is in the upright state. Such a damper 230 prevents the impact from being transmitted to the headrest. Also, the damper 230 can reduce the clearance and noise.

The first fixing member 300 is separately provided from the stay rod 100 and fixed to the upper center of the second rod 120 of the stay rod 100. The first fixing member 300 may be formed of a metal material and installed in the second rod 120 through welding or the like.

The first fixing member 300 includes a bottom plate 310 fixed to the center of the second rod 120 and a side plate 321 formed perpendicularly to both sides of the bottom plate 310.

The first fixing member 300 is installed on the upper portion of the second rod 120 so that the bottom plate 310 is horizontally disposed.

A second rod seating portion 322 on which the second rod 120 is mounted is formed on the lower end of the first fixing member 300. The second rod seating portion 322 is formed so as to pass through in the lateral direction. The second rod seating portion 322 is formed under the bottom plate 310 and the side plate 321. That is, the second rod seating portion 322 is formed so that the upper and lower portions are also opened. The lower end of the first fixing member 300 is disposed lower than the upper end of the second rod 120 and higher than the lower end of the second rod 120. [ In addition, the contact area between the first fixing member 300 and the second rod 120 can be maximized due to the second rod seating portion 322.

A main spring 600 is disposed on the right side of the first fixing member 300. The main spring 600 serves to restore the headrest cover 200 to its original position (folded position). The main spring 600 includes a coil portion 603 formed in a coil shape, a first end 601 formed at one end of the coil portion 603 and a second end 603 formed at the other end of the coil portion 603 602). The coil portion 503 is fitted to the second rod 120. [

And a second main spring catching portion 301 is formed on the rear side of the one side plate 321 so as to protrude rearward. And the second main end 602 is engaged with the second main spring catch 301. The first end 601 is engaged with the first main spring catch formed on the second headrest cover 220.

A stopper (not shown) may be integrally formed at the rear of the side plate 321 to prevent the headrest from being further rotated when the headrest is rotated at a folding angle. The stopper is formed to abut the inner wall of the headrest cover 200. Alternatively, the stopper may be formed on the stay rod 100.

One of the first fixing member 300 and the second fixing member 400 described below is provided with a fixing groove 302 in a vertical direction and the other fixing protrusion 401 inserted into the fixing groove 302 . In this embodiment, the fixing groove 302 is formed in the first fixing member 300, and the fixing protrusion 401 is formed in the second fixing member 400. Alternatively, the fixing groove may be formed in the second fixing member, and the fixing projection may be formed in the first fixing member.

Fixing grooves 302 are formed on upper portions of both side plates 321 of the first fixing member 300. The fixing grooves 302 are formed so as to penetrate right and left and are formed so that the upper portion is opened and the front portion and the rear portion are closed. The fixing groove 302 is formed to have a longer vertical length than a longitudinal width.

The fixing groove 302 is disposed behind the center of rotation of the headrest cover 200. Specifically, the fixing grooves 302 are arranged so as to be spaced apart from each other in the vertical direction and the front-rear direction with respect to the center of rotation of the headrest cover 200.

The contact surface 303 which is the portion of the first fixing member 300 where the fixing protrusion 401 contacts when the headrest cover 200 is rotated with respect to the stay rod 100 is formed in an arc shape. A contact surface 303 is formed at the upper end of both side plates 321. The contact surface 303 is formed to be convex upward. The contact surface 303 is formed such that the rear end is the highest and the height is lower as it is directed forward. The height of the rear end of the contact surface 303 is formed to be higher than the height of the lower end of the fixing groove 302. The first and second supporting portions 402 and 403 described below are separated from the bottom plate 310 when the fixing protrusion 401 contacts the contact surface 303. [

The second fixing member 400 is installed in the headrest cover 200 so as to be slidable up and down. The second fixing member 400 is inserted into the second fixing member flow spaces 213 and 223. The second fixing member 400 is formed in a substantially rectangular parallelepiped shape.

Fixing protrusions 401 are formed on both sides of the rear sides of the second fixing member 400 so as to protrude from both sides. The fixing protrusions 401 are formed long in the vertical direction. The lower end of the fixing protrusion 401 is formed to be curved so as to be semicircular when viewed from the side. The fixing protrusion 401 may be integrally formed with the second fixing member 400 or may be formed by assembling a separate pin to the second fixing member 400. [ When the fixing protrusion 401 is assembled to the second fixing member 400 as described above, the fixing protrusion 401 can be formed of a material different from that of the second fixing member 400. For example, the fixing protrusions 401 may be made of a material having a higher durability than the second fixing member 400, thereby improving the durability while reducing the weight of the apparatus.

The lower portion of the second fixing member 400 is inserted between the side plates 321 on both sides of the first fixing member 300.

A support portion supported by the bottom plate 310 of the first fixing member 300 is formed at the lower end of the second fixing member 400.

The support portion is disposed forwardly or rearwardly of the center of rotation of the headrest cover (200).

The support portion includes a first support portion 402 formed at a lower front end of the second fixing member 400 and a second support portion 403 formed at a rear lower end of the second fixing member 400.

The first support portion 402 is disposed forward of the center of rotation of the headrest cover 200 and the second support portion 403 is disposed behind the center of rotation of the headrest cover 200.

The first and second supporting portions 402 and 403 are formed in a plane which is in contact with the upper surface of the bottom plate 310 and horizontally disposed.

The first and second supports 402 and 403 are disposed lower than the upper end of the second rod 120.

A groove 404 is formed between the first support portion 402 and the second support portion 403. The groove 404 is formed so as to penetrate in the left and right direction, and the lower portion is formed to be opened.

The second fixing member 400 has a first spring seating groove 407 and a second spring seating groove 408. The first and second spring seating grooves 407 and 408 are formed in the vertical direction. The first spring seating groove 407 is formed to be open at the bottom and the second spring seating groove 408 is formed to open at the top. The first spring seating groove 407 is formed longer than the second spring seating groove 408. The first spring seating groove 407 is disposed forward of the second spring seating groove 408. The upper portion of the first spring seat 407 is formed so that the side portion thereof is opened.

A draw-out hole is formed in a front upper portion of the second fixing member 400 so as to penetrate in a vertical direction. The draw-out hole communicates with the first spring seat 407. The draw-out hole is formed so that the side portion is opened.

Further, it may further include a driving member that slides the second fixing member 400.

And a second fixing member spring 800 for returning the second fixing member 400 when the driving member does not operate. The second fixing member spring 800 is provided as a coil spring, and is inserted into the second spring seating groove 408. The lower end of the second fixing member spring 800 is supported by the second fixing member 400, and the upper end is supported by the second headrest cover 220. The second headrest cover 220 is formed with a projection protruding downward from the top of the second fixing member spring 800. The projection is disposed inside the second fixing member flow space 223.

The driving member is provided with a wire 710. One end of the wire 710 is connected to the second fixing member 400 and the other end is connected to the seat side via the stay rod 100. The second headrest cover 220 is provided with wire guide portions 228a and 228b for guiding the wire 710. [ The wire guide portions 228a and 228b are disposed on the upper and side portions of the second fixing member flow space 223. The wire 710 is guided by the wire guide portions 228a and 228b after being drawn out through the drawing hole of the second fixing member 400 and is introduced into the inflow hole 101, And is drawn out to the lower end.

The second fixing member 400 is provided with a wire spring 720 for returning the wire 710. The wire spring 720 is provided as a coil spring, and is inserted into the first spring seating groove 407. The upper end of the wire spring 720 is supported by the second fixing member 400 and the lower end thereof is supported by the engagement protrusion formed at one end of the wire 710.

The wire spring 720 is disposed forward of the center of rotation of the headrest cover 200 and the second fixing member spring 800 is disposed behind the center of rotation of the headrest cover 200.

The tension of the wire spring 720 and the tension of the second fixing member spring 800 are different. In this embodiment, the tension of the wire spring 720 is larger than the tension of the second fixing member spring 800.

Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

When the user pulls the wire 710 to fold the headrest in the upright state as shown in FIG. 7, the second fixing member spring 800 first contracts while the second fixing member 400 is in the state shown in FIG. 8 b). When the second fixing member 400 is not moved any more because it is caught by the headrest cover 200 after being moved a certain distance, the wire spring 720 contracts and only the wire 710 moves as shown in FIG. do.

When the second fixing member 400 is moved upward and the fixing protrusion 401 is released from the fixing groove 302 and the first supporting portion 402 and the second supporting portion 403 are separated from the first fixing member 300, The headrest cover 200 is rotatable with respect to the second rod 120. The headrest cover 200 is rotatable relative to the second rod 120. [ In this state, the headrest cover 200 and the second fixing member 400 are rotated counterclockwise around the second rod 120 by the elastic force of the main spring 600.

The headrest cover 200 is rotated by the elastic force of the main spring 600 even if the force for pulling the wire 710 is removed after the fixing protrusion 401 is detached from the fixing groove 302, And does not flow into the fixing groove 302 again.

Further, when the headrest cover 200 is rotated, the fixing protrusion 401 is brought into contact with the arcuate contact surface 303. In this state, the first support portion 402 and the second support portion 403 are kept apart from the bottom plate 310 of the first fixing member 300. Therefore, the headrest cover 200 can be smoothly rotated.

Through this process, the headrest is folded forward as shown in Fig.

When the folded headrest is erected, the headrest is rotated in the clockwise direction by pushing it backward so that the fixing protrusion 401 is moved while being in contact with the contact surface 303, and then, by the elastic force of the second fixing member spring 800, As shown in FIG. When the fixing protrusion 401 is inserted into the fixing groove 302 as described above, even if the headrest is pushed backward, it is no longer rotated. The first support portion 402 and the second support portion 403 are supported by the bottom plate 310 of the first fixing member 300 so that the headrest is not rotated even when an impact is applied to the headrest from the front or rear side .

&Lt; Embodiment 2 >

The headrest adjusting device according to the second embodiment is a device for folding a headrest.

10 to 13, the headrest adjusting apparatus according to the second embodiment includes a first member connected to either a seat (not shown) or a headrest (not shown) A second member connected to the other one of the rests and rotatably installed on the first member, a first fixing member 1300 formed on the first member, And a second fixing member (1400) for fixing the position of the headrest, wherein one of the first fixing member (1300) and the second fixing member (1400) has a fixing groove formed in a vertical direction, And a driving member for sliding the second fixing member 1400. The driving member may include a button that is slidably mounted to the second member in a lateral direction, 534) Button is characterized in that which is provided in member 530 to.

The detailed description of the same configuration as in the above-described embodiment will be omitted.

In the present embodiment, the first member is provided as a stay rod 100, and the second member is provided as a headrest cover 1200.

The driving member slides the second fixing member 1400 so that the fixing protrusion is inserted into or removed from the fixing groove.

The driving member is provided as a button member 530. As described above, the driving member is provided as the button member 530, so that the user can easily fold the headrest.

A button member mounting portion for mounting the button member 530 is formed on the right side surface of the first and second headrest covers 1210 and 1220. A button member through hole is formed in the button member mounting portion so as to pass through in the left and right direction.

The button member 530 includes a bezel 531 installed at the button member mounting portion, a button 534 slidably fitted in the bezel 531, and a button spring for returning the button 534.

Button 534 is provided on the bezel 531 so as to be slidable in the left-right direction with respect to the headrest cover 1200. [

The button 534 includes a pressing portion 534a formed in a plate shape and a pressing rod formed so as to protrude leftward in the pressing portion 534a.

The pressing rod may be divided into two parts. That is, the pressing rod may be composed of a first pressing rod 534d and a second pressing rod 534f. The first pressing rod 534d is integrally formed with the button 534 and the second pressing rod 534f is provided to be separated from the first pressing rod 534d.

The second pressing rod 534f is formed with a first contacting portion 537 contacting with the first pressing rod 534d and a second contacting portion 536 contacting with the second fixing member 1400. [ The first contact portion 537 and the second contact portion 536 may not be disposed on the coaxial line but may be staggered in the up-down direction or the back-and-forth direction. A second pressing rod seating portion (not shown) may be formed on the headrest cover 1200 to prevent the second pressing rod 534f from moving in the front-rear direction or the up-and-down direction within the headrest cover 1200.

The second contact portions 536 are formed in front of and behind the first contact portions 537, respectively. The second contact portion 536 is formed in a plate-like shape. And the second contact portions 536 are disposed in front of and behind the second fixing member 1400, respectively.

One of the button 534 and the second fixing member 1400 has an interlocking projection 1420 and the other has an inclined surface 535a contacting the interlocking projection 1420.

In this embodiment, the interlocking protrusion 1420 is formed to protrude forward and rearward from the front surface and the rear surface of the second fixing member 1400. The interlocking projection 1420 is formed into a cylindrical shape.

The interlocking hole 535 into which the interlocking projection 1420 is inserted is formed to pass through the second contact portion 536 in the front-rear direction. The interlocking hole 535 is formed so that the left side is open.

The inclined surface 535a forming the interlocking hole 535 is disposed at a lower portion of the interlocking projection 1420 and is formed so as to be inclined so that the height increases toward the right side. This inclined surface 535a allows the left and right movement of the button 534 to be converted into the up and down movement of the second fixing member 1400. [

When the user pushes the button 534 of the button member 530, the first pressing rod 534d of the button 534 presses the second pressing rod 534f.

When the second pressing rod 534f is pressed, the second pressing rod 534f moves to the left. As a result, the interlocking projection 1420 is moved upwardly on the inclined surface 535a. Thus, the second fixing member 1400 is moved upward, and the fixing protrusion is released from the fixing groove. The fixing is released and the headrest is rotated to the folding position by the elastic force of the main spring 600. [

When the button 534 is not pressed, the second fixing member 1400 is lowered downward by the elastic force of the second fixing member spring 800. As a result, the second pressing rod 534f is also moved to the right. When the first push rod 534d and the second push rod 534f are connected and the first push rod 534d is returned by the button spring, the second push rod 534f can be also returned.

< Third Embodiment >

The headrest adjusting apparatus according to the third embodiment is an apparatus for folding a headrest.

As shown in Figs. 14 to 15, the headrest adjusting apparatus according to the third embodiment includes a first member connected to either a seat (not shown) or a headrest (not shown) A second member connected to the other one of the rests and pivotally installed on the first member, a first fixing member 2300 formed on the first member, and a second member fixed on the second member so as to be slidable up and down And a second fixing member (2400) for fixing the position of the headrest, wherein one of the first fixing member (2300) and the second fixing member (2400) has a fixing groove formed in a vertical direction, And a driving member for sliding the second fixing member 2400. The driving member may include a first driving member provided with a wire 710, (530) It characterized in that it comprises a material.

The detailed description of the same configuration as in the above-described embodiment will be omitted.

In the present embodiment, the first member is provided as a stay rod 100, and the second member is provided as a headrest cover 2200.

The headrest cover 2200 includes first and second headrest covers 2210 and 2220.

The driving member includes a wire 710 and a button member 530.

The wire 710 is pulled out to the upper portion of the second fixing member 2400 and guided by the second headrest cover 2220 and inserted into the upper portion of the stay rod 100 and pulled down to be connected to the seat. A wire spring for returning the wire 710 is disposed in the second fixing member 2400.

The wire 710 is disposed on the left side of the headrest cover 2200 and the button member 530 is disposed on the right side of the headrest cover 2200.

The button member 530 includes a bezel 531, a button fitted to the bezel 531, and a button spring for returning the button.

The button includes a pressing part that is pressed by a user and a pressing rod that is formed to protrude leftward in the pressing part.

The push rod includes a first push rod 534d and a second push rod 534f.

An interlocking hole 535 is formed in the second pressing rod 534f so as to pass through in the front-rear direction.

On the front and rear surfaces of the second fixing member 2400, an interlocking protrusion 2420 inserted into the interlocking hole 535 is formed.

The second fixing member 2400 is moved upward when the button is pressed by the inclined surfaces forming the interlocking protrusion 2420 and the interlocking hole 535. [

The distance by which the second fixing member 2400 is moved by the button member 530 and the distance by which the second fixing member 2400 is moved by the wire 710 are the same or similar so that the button member 530 or the wire 710 are prevented from being interfered with by the other member when the second fixing member 2400 is moved.

A second fixing member spring 800 for returning the second fixing member 2400 is disposed between the second fixing member 2400 and the headrest cover 2200. [

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims .

DESCRIPTION OF REFERENCE NUMERALS
100: stay rod 101: inflow hole
110: first rod 111: inclined portion
120: second rod 200: headrest cover
210: first headrest cover 211: first stay rod coupling portion
215: first fastening part 216: first incision part
219: fastening hook 220: second headrest cover
221: second stay rod coupling portion 213, 223: second fixing member moving space
225: second fastening part 226: second incision part
229: fastening hole 300: first fixing member
301: second main spring locking portion 302: fixing groove
303: contact surface 310: bottom plate
321: side plate 322: second rod seat part
400: second fixing member 401: fixing projection
402: first support portion 403: second support portion
404: groove 407: first spring seat groove
408: second spring seating groove 530: button member
531: Bezel 534: Button
534a: pressing portion 534d: first pressing rod
534f: second pressing rod 535: interlocking ball
535a: inclined surface 536: second contact portion
537: first contact portion 600: main spring
601: first end 602: second end
603: coil part 710: wire
720: wire spring 800: second fixing member spring

Claims (13)

A first member connected to either the seat or the headrest;
A second member connected to the other one of the seat or the headrest and rotatably installed in the first member;
A first fixing member formed on the first member;
And a second fixing member slidably mounted on the second member to fix the position of the headrest,
Wherein one of the first fixing member and the second fixing member has a fixing groove formed in a vertical direction and a fixing protrusion inserted into the fixing groove is formed in the remaining one of the first fixing member and the second fixing member. The method according to claim 1,
Wherein the first member is a stay rod,
Wherein the second member is a headrest cover. The method of claim 2,
Wherein the headrest cover is formed with a stay rod coupling portion to which the stay rod is rotatably coupled. The method according to claim 1,
Wherein the second fixing member is formed with a support portion supported by the first fixing member. The method of claim 4,
Wherein the support portion is disposed forwardly or rearwardly of the rotational center of the second member. The method according to claim 1,
Wherein the fixing groove is formed in the first fixing member, and the fixing projection is formed in the second fixing member. The method of claim 6,
Wherein a portion of the first fixing member where the fixing protrusion contacts when the second member rotates with respect to the first member is formed in an arc shape. The method of claim 6,
Wherein the first fixing member includes a bottom plate and a side plate,
The fixing groove is formed in the side plate,
And the second fixing member is formed with a support portion supported by the bottom plate. The method according to claim 1,
Wherein the first member is a stay rod,
Wherein the second member is a headrest cover,
Wherein the first fixing member includes a bottom plate and a side plate,
The fixing groove is formed in the side plate,
And the second fixing member is formed with a support portion supported by the bottom plate. The method according to claim 1,
A driving member for sliding the second fixing member, and a second fixing member spring for returning the second fixing member,
Wherein the driving member is provided with a wire,
Wherein the second fixing member is provided with a wire spring for returning the wire,
Wherein the tension of the wire spring and the tension of the second fixing member spring are different. The method of claim 10,
Wherein the tension of the wire spring is larger than the tension of the second fixing member spring. The method according to claim 1,
Further comprising a driving member for sliding the second fixing member,
Wherein the driving member is provided with a button member including a button slidably installed in the second member in a lateral direction,
Wherein one of the button and the second fixing member is provided with an interlocking protrusion, and the other of the button and the second fixing member is formed with an inclined surface contacting the interlocking protrusion. The method according to claim 1,
Further comprising a driving member for sliding the first fixing member,
Wherein the driving member includes a first driving member provided with a wire and a second driving member provided with a button member.
KR1020170129711A 2017-10-11 2017-10-11 Controlling apparatus of headrest KR101972509B1 (en)

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KR1020170129711A KR101972509B1 (en) 2017-10-11 2017-10-11 Controlling apparatus of headrest
PCT/KR2018/006813 WO2019074186A1 (en) 2017-10-11 2018-06-18 Headrest controlling apparatus

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Application Number Priority Date Filing Date Title
KR1020170129711A KR101972509B1 (en) 2017-10-11 2017-10-11 Controlling apparatus of headrest

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KR20190040579A true KR20190040579A (en) 2019-04-19
KR101972509B1 KR101972509B1 (en) 2019-04-26

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CN110239475B (en) * 2019-05-10 2021-05-25 江苏大学 Double-airbag safety device of motor vehicle and control method thereof

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KR100790535B1 (en) * 2007-02-07 2008-01-02 (주)현대공업 Headrest for automobile
KR100982796B1 (en) 2008-01-30 2010-09-16 정해일 Headrest for cars
KR100991236B1 (en) * 2008-04-02 2010-11-01 다이모스(주) active headrest for a car
KR101044067B1 (en) 2009-09-16 2011-06-23 주식회사 우보테크 Headrest Moving Device
KR101071615B1 (en) 2009-09-16 2011-10-10 주식회사 우보테크 Headrest Moving Device
KR20120032201A (en) * 2010-09-28 2012-04-05 주식회사 우보테크 Apparatus for forward and backward movement of car headrests
KR101171234B1 (en) 2010-07-26 2012-08-06 주식회사 우보테크 Headrest Moving Device
KR101428664B1 (en) * 2013-12-10 2014-08-08 주식회사 우보테크 Headrest Folding Apparatus

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KR200426352Y1 (en) * 2006-07-04 2006-09-13 서정돈 A headrest
KR101071614B1 (en) * 2009-09-08 2011-10-10 주식회사 우보테크 Headrest Moving Device

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Publication number Priority date Publication date Assignee Title
KR100790535B1 (en) * 2007-02-07 2008-01-02 (주)현대공업 Headrest for automobile
KR100982796B1 (en) 2008-01-30 2010-09-16 정해일 Headrest for cars
KR100991236B1 (en) * 2008-04-02 2010-11-01 다이모스(주) active headrest for a car
KR101044067B1 (en) 2009-09-16 2011-06-23 주식회사 우보테크 Headrest Moving Device
KR101071615B1 (en) 2009-09-16 2011-10-10 주식회사 우보테크 Headrest Moving Device
KR101171234B1 (en) 2010-07-26 2012-08-06 주식회사 우보테크 Headrest Moving Device
KR20120032201A (en) * 2010-09-28 2012-04-05 주식회사 우보테크 Apparatus for forward and backward movement of car headrests
KR101428664B1 (en) * 2013-12-10 2014-08-08 주식회사 우보테크 Headrest Folding Apparatus

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