KR20160000568A - Articulation type supporter for seat of a means of transportation - Google Patents

Abstract

The present invention relates to an articulated article holder for a vehicle seat and, more specifically, to an articulated article holder for a vehicle seat, which is installed on the rear surface of a vehicle seat. The holder is folded in a rear surface side of a vehicle seat in case of being stored, and is used by unfolding folded arms in case of being used, thereby stably supporting an article even if a distance spaced from a load of the article mounted on the holder is changed. The articulated article holder for a seat of a means of transportation comprises: a fixed bracket installed in a vehicle body; a back cover covering the rear surface of the seat; a swivel unit installed in an upper portion of the fixed bracket; a first arm; a second arm; and a holding plate wherein an article is mounted on the rear surface.

Description

[0001] ARTICULATION TYPE SUPPORTER FOR SEAT OF A MEANS OF TRANSPORTATION [0002]

The present invention relates to an articulated article resting seat for a seat of a vehicle, and more particularly, to an articulated article resting seat for a seat of a vehicle, which is provided on the rear side of a front seat, To an articulated article cradle for a seat of a transportation means for allowing an article to be stably placed even when the distance between front and back of the seat is changed.

Recently, terminals such as a navigation device, a portable media player (PMP) player, a personal digital assistant (PDA), a digital multimedia broadcasting (DMB) player, an MPEG audio layer (MP3) player, And is developing into a form that integrates each function.

Such portable terminals have become easier to carry along with the trend of miniaturization and light weight, and their use is increasingly being applied to transportation means such as automobiles and airplanes at home or office.

A representative example of the above attempts is a cradle that can hold a terminal such as a portable terminal or a navigation terminal while the vehicle is in operation.

Conventionally, the stand is generally configured to be attached and fixed to a dashboard or a front glass surface of a vehicle using vacuum adsorption or an adhesive agent. However, it has not yet been arranged in front of and behind the vehicle such as an automobile or an airplane The development of technology to provide convenience to the passengers in the rear seats among the available seats is in a bare state.

The products mainly used by the passengers in the rear seat are not portable terminals such as navigation for convenience of driving, but portable terminals, documents and books including a tablet PC are mainly used.

However, in a vehicle such as an automobile, an airplane, a ship or a train, for example, in the case of a passenger car, a passenger who is seated on a seat arranged behind the driver's seat or the passenger seat generally looks at the rear And the side portions are not only narrowed or narrowed, but also do not deserve the mounting of a cradle for supporting the article, and are inconvenient for its use and spatial utilization.

Furthermore, the above items may be fixed to the rear seat of the front seat, or the article may be placed on a simple shelf made of a retractable seat on the rear side of the seat. In this case, however, It is difficult to adjust the distance between the front seat and the back seat (such as the distance that the tablet PC or the like is positioned at a convenient position or view the book or the document depending on the user), and the posture of the rear seat passenger The use becomes inconvenient.

In addition, when a cradle for supporting articles is provided on the rear side of the seat of the front seat, the safety of the passenger in the rear seat must be taken into account in consideration of the collision of the transportation means.

In order to place the rear seat passenger on the front side of the rear seat passenger, the spacing adjustment function must be provided. In addition to this, It is required that the distance maintained from the rear surface of the sheet and the state of supporting the article are also stably maintained.

On the other hand, the applicant of the present invention has disclosed Korean Priority Patent Application No. 10-2014-0073466 (hereinafter referred to as "prior art"), which claims priority to Dec. 31, 2013, The present invention has been made in view of the above problems in applying the prior art of the present applicant to transportation of automobiles and the like and to apply the present invention.

Korean Patent Registration No. 1321016 (Oct. 16, 2013) Korean Utility Model Publication No. 20-1997-0001241 (Feb. 1, 1997) Korean Patent Publication No. 10-2014-0073466 (2014.06.16)

The object of the present invention is to provide a seat for a vehicle, which is installed on a rear surface of a front seat of a vehicle such as an automobile, an airplane, a ship or a train, and is folded on the rear side of the front seat when stored. So that the article can be stably supported in response to a physical action such as a change in distance between the load of the article and a movement due to the movement of the moving means, and at the same time, And an object of the present invention is to provide an articulated commodity cradle for a seat of a vehicle that is safe from collision risk.

According to another aspect of the present invention, there is provided a vehicle seat comprising: a fixing bracket installed on a rear surface of an automobile seat; A swivel unit mounted on the fixing bracket so as to be horizontally rotatable; A first arm, one end of which is connected to the swivel unit by a first hinge unit so as to be vertically rotatable, and the other end of which is provided with a second hinge unit; And a second arm, one end of which is rotatably connected to the first arm by the second hinge unit so as to be rotatable up and down, and the other end of which is connected to the rear surface of the mounting plate, 1 arm and the second arm can be folded and the position of the mounting plate can be freely adjusted.

The car seat may be provided with a locking unit capable of locking the first arm, the second arm, and the mounting plate in a folded state to the rear surface of the car seat or releasing the locking thereof.

The fixing bracket may have a structure in which an inner bracket is coupled to the inside of the outer fixing bracket. The outer bracket may have a shaft insertion portion formed at one side thereof and a coupling portion extending from the shaft insertion portion at the other side thereof.

The inner bracket may be formed with a shaft support portion having a shaft support hole at an upper portion thereof and a fastening portion having a fastening hole at a lower portion of the shaft support portion.

Wherein the swivel unit includes a swivel shaft inserted into the shaft insertion portion through the shaft support hole and supported by the shaft support portion; At least one disk spring fitted to the swivel gear so that the swivel gear is elastically and horizontally rotated; A plurality of washers sandwiched between the swivel shafts; And a grooved nut fastened to an end of the swivel shaft and inserted into the shaft insertion portion.

A back cover may be installed on the rear surface of the automobile seat. The back cover has a seating groove formed at an upper rear portion of the seat so that the seating plate can be seated without protruding to the outside, and the seating groove has a first arm, And a bracket insertion groove into which the fixing bracket can be inserted.

The first arm has a through hole at a designed position and includes a first cover, a second cover coupled with the first cover, and a first movable frame fixed between the first cover and the second cover And the like.

A seating jaw may be formed on the outer surface of the upper portion of the first cover to allow the second arm to be closely attached thereto.

The other end of the second hinge arm may be connected to the mounting plate by a ball joint,

The mounting plate may be provided with a ball mount plate having a ball, and the other end of the second arm may be formed with a ball receiving portion to which the ball is coupled.

The second arm may include a first cover, a second cover coupled with the first cover, and a second movable frame fixed between the first cover and the second cover. have.

The locking unit includes: a rocker (hook) installed to be able to rotate in a resilient manner on a mounting bracket of a base frame provided on the car seat so as to be locked to the ring; A push rod slidably installed on an inner surface of the car seat so as to selectively lock the locker to release the locking of the locker; And a push button elastically installed on a side surface of the car seat so as to press the push rod.

The first hinge unit is connected to the swivel unit and includes a first connection member installed at one end of the first hinge arm. The first arm is mounted on the hinge mount so that rotation of the first arm is prevented in a direction of load corresponding to the load applied to the first arm and rotation of the first arm is permitted in a direction opposite thereto A first clutch bearing; A first hinge shaft passing through the center of the first clutch bearing; A first bridge fitted to the first hinge shaft and connected to the first hinge arm; And a first brake unit configured to rotate the first arm in the load direction when the first arm does not rotate in a direction of the load and a force greater than a predetermined load is applied when a force less than a predetermined load is applied Stopping unit).

Wherein the first brake unit comprises: one or more disc springs fitted to the first hinge shaft to elastically press the first bridge; A plurality of washers fitted in said first hinge shaft to prevent wear; And a first grooved nut fastened to an end of the first hinge shaft.

The second hinge unit includes a second connecting member formed at the other end of the second hinge arm; A second hinge shaft coupled to a center of the second linking member; A second bridge fitted to the second hinge shaft and connected to the second hinge arm; And a second brake unit configured to rotate the second arm in the direction of the load when a force equal to or less than a predetermined load is applied to the second arm, .

The second brake unit includes at least one second disk spring fitted to the second hinge shaft to elastically press the second bridge; A plurality of washers sandwiched between said second hinge shafts to reduce wear; And a second grooved nut fastened to an end of the second hinge shaft.

According to the present invention, it is possible to arrange the folded arms so that they are folded at the rear side of an automobile seat when they are stored and can be folded and used when they are used, There is an effect that the article is stably supported by the clutch bearing with respect to the direction in which the load of the article acts from the vibration due to the change of the distance and the movement of the moving means including the automobile.

In addition, the arms are maintained in a stable state in response to the collision of the moving means by the locking portion, and in response to collision with the articulated article resting table including the article being stuck in the process of the rear seat passenger being tilted to the square, There is an effect that the safety of passengers can be achieved as the arms are folded in a reduced manner.

FIGS. 1A to 1C are views showing an installation state of an articulated article rest stand for a car seat according to an embodiment of the present invention, a vertical rotation relationship and a horizontal rotation relationship of the first and second arms, In which the spherical motion is generated.
Fig. 2 is an exploded perspective view for explaining the configuration of the articulated article placing stand for a car seat shown in Fig. 1A and the coupling relationship of these structures.
FIG. 3 is an exploded perspective view showing the swivel unit configuration of FIG. 2 and the coupling relationship of these configurations.
Fig. 4 is a perspective view showing a state in which each constitution of the swivel unit shown in Fig. 3 is engaged. Fig.
5 is a cross-sectional view schematically showing a configuration viewed from the side with respect to the longitudinal center of FIG. 4. FIG.
6A to 6B are cross-sectional views based on the line I-I and the line II-II in FIG.
7 is a perspective view showing the inside of the back cover viewed from the front direction of the seat.
Fig. 8 is a plan view of Fig. 7. Fig.
9 is a side cross-sectional view for explaining the configuration of the locking unit of the present invention and the operation of each configuration.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, but the inventor may appropriately define the concept of the term to describe its invention in the best way Can be interpreted as meaning and concept consistent with the technical idea of the present invention.

It should be noted that the embodiments described in this specification and the configurations shown in the drawings are merely preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications may be present.

In the description of the present invention, the description of the front, back, front and rear of each component boom will be referred to as front or front, with respect to the arrangement of the seats, .

In addition, the load direction means a direction in which a weight force applied from the upper side to the lower side acts, and the opposite direction means a direction in which the cage portion is lifted by the user from the lower side to the upper side.

The rotation in the horizontal direction is defined as swivel rotation, the configuration related to the swivel rotation is referred to as a swivel unit, and the rotation in the vertical direction is referred to as hinge rotation.

One end (one side) and the other end (the other side) in the configuration having the length and the connection relationship thereof are described as an end or a direction in the direction in which the fixing bracket is provided is referred to as one end or one side, And the end or the direction thereof will be referred to as the other end or the other end.

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

1A and 1B, an articulated article cradle for an automobile seat according to an embodiment of the present invention is configured to support an article (a portable electronic device, a book, and the like) installed on the rear surface of a seat 1 So that the support can be stably supported even when the load of the article to be loaded and the distance from the seat 1 are changed.

The back cover 2 provided on the rear surface of the sheet 1 may be constituted integrally with the sheet 1 as a part of the sheet 1 or may be constituted as a separate ejector.

In Figs. 1A and 1B, the position adjustment of the stationary plate P is shown using a hinge rotation (vertical rotation).

1C is a view showing an installation state of an articulated article cradle for an automobile seat according to an embodiment of the present invention. The caddy P is mounted on a floor, Respectively.

An articulated article cradle for a car seat according to an embodiment of the present invention will be described with reference to Figs. 1A to 9.

An articulated article placing table for a car seat according to an embodiment of the present invention includes a fixing bracket 100 provided on a rear surface of a seat 1 and a swivel unit 200 mounted on a fixing bracket 10 so as to be horizontally rotatable, A first arm 300 having one end connected to the swivel unit 200 by a first hinge unit 310 and a second hinge unit 320 connected to the other end by a first hinge unit 320 so as to be vertically rotatable, And a second arm 400 whose one end is rotatably connected to the first arm 300 by the second arm 320 and whose other end is connected to the rear surface of the stationary plate P. [

The articulated article placing stand for a car seat according to the embodiment of the present invention is capable of rotating and folding the first arm 300 and the second arm 400 by the horizontal rotation and the vertical rotation, The position can be freely adjusted.

A locking unit 50 capable of locking or releasing the locking of the first arm 300 and the second arm 400 and the fixing plate P to the rear surface of the seat 1 in the state of folding the seat 1, 1).

The fixing bracket 100 is configured such that the inner bracket 120 is coupled to the inside of the outer fixing bracket 110. The outer bracket 110 has a shaft insertion portion 111 formed on one side and a shaft insertion portion 111 (Not shown).

The inner bracket 120 may have a shaft support portion 121 having a shaft support hole 121a formed thereon and a fastening portion 123 having a fastening hole 123a at a lower portion of the shaft support portion 121 may be bent .

The inner bracket 120 is inserted into the outer fixing bracket 110 and fastened with the bolt B. [

The swivel unit 200 includes a swivel shaft 210, one or more disc springs 220, a plurality of washers 230, a slotted nut 240 ). ≪ / RTI >

That is, the swivel shaft 210 is configured to be inserted into the shaft insertion portion 111 while being supported by the shaft support portion 121 through the shaft support hole 121a.

The disc spring 220 is configured to be fitted in the swivel gear 210 so that the swivel gear 210 is elastically and horizontally rotated.

The washer 230 is fitted to the swivel gear 210 and disposed on both sides of the disc spring 220.

The grooved nut 240 is fastened to the end of the swivel shaft 210 and inserted into the shaft insertion portion 111 together with the swivel gear 210 after fastening.

The back cover 2 which can be installed on the rear surface of the seat 1 is a plastic injection molded product in which a seating groove 2a is formed at an upper end portion of the back surface of the seat 1 so that the seating plate P does not protrude to the outside, An arm insertion groove 2b into which the first arm 300 and the second arm 400 can be inserted and a bracket insertion groove 2c into which the fixing bracket 100 can be inserted are further formed .

The first arm 300 has a through hole H at a designed position and includes a first cover 301, a second cover 303 which engages with the first cover 301, a first cover 301 And a first movable frame 305 fixed between the first cover 301 and the second cover 303.

A seating surface 301a on which the second arm 400 can be closely adhered can be formed on the upper outer surface of the first cover 301. [

The other end of the second hinge arm 400 can be connected to the stationary plate P by a ball joint 600. A ball mount plate 610 having a ball 611 is installed on the stationary plate P And a ball receiving portion 620 to which the ball 611 is coupled may be formed at the other end of the second arm 400.

The second arm 400 has a ring 400a and includes a first cover 401, a second cover 403 that engages the first cover 401, a first cover 401, And a second movable frame 405 fixed between the first movable frame 403 and the second movable frame 405.

When the first arm 300 and the second arm 400 are folded together and the mounting plate P is stored in the seating groove 2a, the first arm 300 and the second arm 400 As well as a function of firmly attaching the mounting plate P to the back cover 2 of the seat 1.

The locking unit 500 includes a rocker 510 that is locked to the ring 400a, a push rod 520 that selectively rotates the locker 510, a push button that presses the push rod 520 530).

A torsion spring 512 is provided on the rotary shaft 511 of the rocker 510 so that the elastic force of the torsion spring 512 acts on the locking protrusion 400a in a direction in which the locker .

The locker (hook) 510 is installed so as to be elastically rotatable on the mounting bracket 4 of the base frame 3 provided on the seat 1 so as to be locked to the ring 400a.

The push rod 520 is slidably installed on the inner surface of the seat 1 so as to selectively rotate the locker 510 to release the locking of the locker 510.

The push button 530 is resiliently mounted on the side of the seat 1 so as to press the push rod 520. [

A spring S (see FIG. 1A) for elastically supporting the first hinge arm 300 is provided on the rear surface of the seat 1, more specifically, the arm insertion groove 2b formed on the back surface of the back cover 2 So that the locking plate P may be slightly protruded outward when the locker 510 is unlocked so that the user can easily take out the fixing plate P. [

When the first arm 300 and the second arm 400 are folded together and the mounting plate P is to be stored in the seating groove 2a, The hook 400a is elastically fastened to the rocker (hook) 510 by the torsion spring 512.

On the other hand, when the stationary plate P is to be taken out from the seating groove 2a, the push button 530 presses the push rod 530 to slide the push rod 520.

At this time, the push rod 520 pushes the locker 510, and at this time, the elastic force of the torsion spring 512 is overcome and the locker 510 rotates about the rotation axis 511 to rotate the locker 510 and the ring 400a The locking is released.

At the same time, the fixing plate P protrudes slightly outward by the spring S (see FIG. 1A), so that the user can easily take out the fixing plate P.

The first hinge unit 310 allows the first hinge arm 300 to be vertically rotated (hinged) with respect to the fixed bracket 100. The first hinge unit 310 is connected to the swivel gear 210 of the swivel unit 200, A first clutch bearing 313 provided at one end of the first hinge arm 300 and a first clutch bearing 313 installed at the hinge mount 311; A hinge shaft 315, a first bridge 317 fitted to the first hinge shaft 315 and connected to the first hinge arm 300, and a first brake unit (stopping unit) 319 .

The hinge mount 311 is connected to the head 211 of the swivel shaft 210 and connected to one end of the first hinge arm 300 so that the first hinge arm 300 can be rotated horizontally and vertically .

The hinge mount 311 may be connected to the head 211 of the swivel shaft 210 by an insert injection method.

The first clutch bearing 313 is configured so that the load is applied to the first arm 300 (for example, when the article is placed on the mounting plate P) The first arm 300 is prevented from rotating and the first arm 300 is pivoted in the opposite direction (upward direction) in the hinge mount 311.

Clutch bearings are well known in the art, but in order to facilitate understanding of the operation of the present invention, the operation principle of the first clutch bearing 313 will be briefly described with reference to Fig. 6A.

A first clutch bearing 313 is installed in the first linking member 311 and a first hinge shaft 315 is positioned in the center of the first clutch bearing 313, The first hinge arm 300 is rotatable because the needle roller 313a of the first clutch bearing 313 does not affect the first hinge shaft 315 .

However, in the opposite direction, the needle roller 313a of the first clutch gear 313 presses the first hinge shaft 315 to prevent the first hinge arm from rotating, So that the mounted article can be firmly supported.

The first hinge shaft 315 is inserted into the first connecting member 311 through the center of the first clutch bearing 313 and the stopper portion 315a formed in the middle of the first hinge shaft 315 is engaged with the jaw 311a do.

 The first bridge 317 is configured such that one end thereof is fitted to the first hinge shaft 315 and the other end thereof is connected to the movable bracket 305 of the first hinge arm 300.

When the first brake unit (stopping unit) 319 does not rotate the first arm 300 in the load direction when a force less than a predetermined load (for example, load of the article placed on the mounting plate) is applied, (In the downward direction) when a force greater than a predetermined load (a force pressing the first hinge arm downward to adjust the position of the mounting plate) is applied (by the operation of the first clutch bearing) So that the arm 300 is rotated.

The first brake unit 319 includes one or more disc springs 319a fitted to the first hinge shaft 315 to elastically press the first bridge 317 and a first hinge shaft 315 to prevent wear, And a first groove-like nut 319c fastened to an end of the first hinge shaft 315. The first hinge shaft 315 has a plurality of washers 319b fitted to the first hinge shaft 315,

The pair of washers 319b are made of a material having a wear-resistant property and a durability so that the surfaces of the pair of faces are mutually facing so as to be mutually slidable.

That is, the washer 319b is in a press-contact relationship with the provision of an elastic force through the disc spring 319a, and any one of the mutually facing structures simultaneously intervenes between the rotation of the other components And a flat washer functioning as a substitute for the frictional relationship between the two.

Referring to FIG. 6B, the operation of the first brake unit 319 will be described as follows.

As described above, the first hinge arm 300 is always pivotable in the upward direction so as to sufficiently support the load of the article placed on the stationary plate P by the first clutch bearing 313, You are subject to restrictions.

When the user applies force to the first hinge arm 300 to adjust the position of the stationary plate P, the disk spring 319a and the grooved nut 319c can be rotated Since the first hinge shaft 315 is compressed by the first bridge 317, the first hinge arm 300 together with the first bridge 317 can be pivoted downward with respect to the first hinge shaft 315 .

The second hinge unit 320 can rotate the second hinge arm 400 up and down with respect to the first hinge arm 300. The second hinge arm 320 is formed at the other end of the second hinge arm 400 A second hinge shaft 325 that is coupled to the center of the second linking member 321 and a second hinge shaft 325 that is fitted to the second hinge shaft 325 and is connected to the second hinge arm 400 A second bridge 327, and a second brake unit 329.

The second linking member 321 is integrally formed at one end of the second hinge arm 400.

The first clutch bearing 323 is configured such that the load is applied to the second arm 400 (for example, when the article is placed on the mounting plate P) The second arm 400 is installed in the second connection member 321 such that rotation of the second arm 400 is prevented and rotation of the second arm 400 is allowed in the opposite direction (upward direction).

The second hinge shaft 325 is inserted into the second linking member 321, and the stopper portion 325a formed in the middle thereof is configured to be hooked on the jaw 321a.

The second bridge 327 is configured such that one end thereof is fitted to the second hinge shaft 325 and the other end thereof is connected to the second hinge arm 400 and the bolt B.

The second brake unit 329 does not rotate the second arm 400 in the load direction (downward direction) when a force less than a predetermined load is applied (a load placed on the mounting plate) The second arm 400 is configured to pivot in the load direction (downward direction) when a force (a force that the user presses down the second hinge arm to adjust the position of the mounting plate) is applied.

The second brake unit 329 includes one or more second disc springs 329a fitted to the second hinge shaft 325 to elastically press the second bridge 327 and a second hinge shaft 325 for reducing wear, And a second grooved nut 329c fastened to an end of the second hinge shaft 325. The first grooved nut 329c and the second grooved nut 329c are fixed to the first hinge shaft 325 and the second hinge shaft 325, respectively. The pair of washers 319b are made of a material having a wear-resistant property and a durability so that the surfaces of the pair of faces are mutually facing so as to be mutually slidable.

The washer 329b is in a press-contact relationship with the provision of an elastic force through the disc spring 329a, and at the same time, any one of the mutually facing structures is interposed between the other components to be slidly rotated, It acts as a flat washer to replace the relationship.

Since the second brake unit 329 operates on the same principle as the first brake unit 319 described above, the description of the operation of the second brake unit 329 is omitted.

Referring to FIGS. 1A and 1B, the articulated article placing stand for a car seat configured as described above includes a hinge connection structure of the first hinge arm 300 and the second hinge arm 400, And the angle of the ball joint 500 can be adjusted freely.

1C, the fixing plate P can be rotated in the horizontal direction by using the swivel unit.

The folded arms can be folded and used while being folded at the rear side of the car seat during storage, and the article can be stably supported even when the load of the loaded article is changed and the distance between the folded arms is changed.

In addition, "C", which is an unexplained reference numeral, indicates a "cable" connected to the article from the inside of the seat through the articulated cradle of the present invention. As shown in FIG. 5, The first and second arms 300 and 400 may be connected to each other through the inside of the first arm 300 and the second arm 400. However, And the cable C is prevented from protruding through the groove. It will be obvious to those skilled in the art that the application is easy.

1: sheet 2: back cover
2a: seat groove 2b: arm insertion groove
2c: Bracket insertion slot 3: Base frame
4: Mounting bracket 100: Fixing bracket
110: outer bracket 111: shaft insertion portion
113: engaging portion 120: inner bracket
121: shaft support portion 121a: shaft support hole
123: fastening part 123a: fastening hole
200: Swivel unit 210:
220: disk spring 230: washer
240: slotted nut 300: first hinge arm
301: first cover 301a:
303: second cover 305: first movable frame
310: first hinge unit 311: hinge mount
311a: chin 313: first clutch bearing
313a: Needle roller 315: First hinge shaft
315a: stopper portion 317: first bridge
319: first brake unit 319a: disk spring
319b: Washer 319c: First slotted nut
320: second hinge unit 321: second connecting member
321a: jaw 323: second clutch bearing
325: second hinge shaft 325a: stopper portion
327: second bridge 329: second brake unit
329a: second disk spring 329b: washer
329c: second slotted nut 329b: washer
400: second arm 400a: ring
401: first cover 403: second cover
405: second movable frame 500: locking unit
510: rocker 511: rotating shaft
512: Torsion spring 520: Push rod
530: push button 600: ball joint
611: Ball 610: Ball Mount plate
620: Ball receiving portion B: Bolt
H: Through hole P: Mounting plate
S: Spring

Claims (10)

A stationary bracket installed in a vehicle body and installed in a base frame constituting a seat;
A back cover which covers the rear surface of the seat, the back cover including a receiving portion for exposing an upper portion of the fixing bracket to the outside and storing the article;
A swivel unit installed on the fixing bracket and capable of horizontally rotating;
A first arm having one end connected to the first hinge unit and the other end pivotable in the up-and-down direction, the swivel unit protruding above the fixing bracket;
A second arm having one end connected to the other end of the first arm by a second hinge unit and the other end folded or unfolded in the up and down direction and the first arm; And
And a mounting plate having a front surface connected to the other end of the second arm by a ball joint and a rear surface for mounting the article. The method according to claim 1,
Wherein the first arm and / or the second arm further comprises a locking portion in the direction of the back cover of the seat,
Wherein a locking unit is further provided on the seat including the back cover corresponding to the locking portion, the locking unit being operable to fix or unlock the locked state of the locking portion in a predetermined position,
Wherein the fixing of the locking unit to the locking portion is performed while the mounting plate is aligned with the receiving portion. The method according to claim 1,
Wherein the fixing bracket is formed by combining an outer bracket and an inner bracket,
Wherein the outer bracket is formed with a shaft insertion portion opened upward and a coupling portion communicating with the shaft insertion portion in a direction corresponding to the base frame,
The inner bracket includes: a shaft support portion corresponding to an opening of the insertion portion and having a shaft support hole vertically penetrating the upper portion; And a fastening portion bent in a downward direction from a front side of the shaft support portion and facing the base frame in a shape corresponding to the engagement portion,
Wherein the swivel unit includes a swivel shaft having a lower portion installed through the shaft support hole to receive a support of the shaft support portion and the shaft insertion portion;
At least one disk spring fitted to the swivel shaft from below;
At least one washer installed in the swivel shaft between the disk spring and the bottom surface of the shaft support; And
And a nut having a male thread formed on a lower side of the swivel shaft and fastened in a direction opposite to a bottom surface of the shaft support portion from a lower side of the swivel shaft. holder. 3. The method of claim 2,
Wherein the receiving portion has a seating groove formed in a rear upper surface of the back cover so that the seating plate is not protruded to the outside, and the seating groove is formed with an arm insertion portion which can be inserted in a state where the first arm and the second arm are folded- And a bracket insertion groove into which the groove and the fixing bracket can be inserted are further formed. 5. The method of claim 4,
Wherein the locking portion is formed in a ring or hook shape protruding from the surface of the second arm facing the first arm when the first arm is folded,
Wherein the first arm is formed with a through hole through which a part of the locking portion facing the second arm at the time of folding the second arm with the second hinge unit as a center is formed,
Wherein the locking unit is provided on the lower side of the fixing bracket and in the base frame on the inside of the arm insertion groove and resiliently pivots in response to the ring or hook shaped portion of the locking portion being set at a predetermined position, A hook or an annular locker for releasing the hook or loop; And a control unit connected to the locker and installed on the seat so as to selectively rotate the locker according to a user's operation to release the locker from the locking unit. Articulated goods cradle. The method according to claim 1,
The ball joint includes:
And a ball receiving portion provided at the other end of the second arm and configured to partially surround the ball-shaped portion of the ball mount,
And a ball housing having a ball-shaped portion at the other end of the second arm, and a ball receiving portion having a shape that partially surrounds the ball-shaped portion of the ball mount, An articulated article cradle for a seat of a transportation means. The method according to claim 1,
The first hinge unit includes:
A hinge mount having a single pipe shape with a tube forming direction being horizontal at an upper end of the swivel shaft projecting upward from the fixing bracket;
A first connecting member corresponding to the hinge mount and installed at one end of the first arm;
The first arm is mounted on the hinge mount so that rotation of the first arm is prevented in a direction of load corresponding to the load applied to the first arm and rotation of the first arm is permitted in a direction opposite thereto A first clutch bearing;
A first hinge shaft passing through the center of the first clutch bearing;
A first bridge fitted to the first hinge shaft and connected to the first hinge arm; And
A first brake unit configured to rotate the first arm in a direction of a load when a force equal to or less than a predetermined load is applied and the first arm does not rotate in a direction of a load and a force greater than a predetermined load is applied; Articulated goods cradles for the seat of an included transportation means. 8. The method of claim 7,
The first brake unit
One or more disc springs fitted to the first hinge shaft to elastically press the first bridge;
One or more washers fitted to the first hinge shaft to prevent wear; And
And a first grooved nut fastened to an end of the first hinge shaft. The method according to claim 1,
The second hinge unit
A second connecting member formed at the other end of the second hinge arm;
A second hinge shaft coupled to a center of the second linking member;
A second bridge fitted to the second hinge shaft and connected to the second hinge arm; And
And a second brake unit configured to rotate the second arm in the load direction when a force equal to or less than a predetermined load is applied and the second arm does not pivot in a load direction and a force greater than a predetermined load is applied Articulated goods cradles for the seat of an included transportation means. 10. The method of claim 9,
The second brake unit
One or more second disk springs fitted to the second hinge shaft to elastically press the second bridge;
A plurality of washers sandwiched between said second hinge shafts to reduce wear; And
And a second grooved nut fastened to an end of the second hinge shaft.

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