WO2009014329A2

WO2009014329A2 - The ergonomic neck support apparatus for car seat which has a function of shock absorption and wrick prevention

Info

Publication number: WO2009014329A2
Application number: PCT/KR2008/004031
Authority: WO
Inventors: Jong Sub Hwang
Original assignee: Jong Sub Hwang
Priority date: 2007-07-25
Filing date: 2008-07-09
Publication date: 2009-01-29
Also published as: KR100840556B1; WO2009014329A3

Abstract

Disclosed herein is a structure of a neck rest for vehicles ergonomically designed to absorb shock and prevent crick in the neck, which includes a head part disposed on the front face thereof and having a support frame formed in such a way as to surround a user's cervical vertebral of the neck and a buffering part and a support part disposed on the rear face thereof, thereby minimizing a driver's or a passenger's shock and wholly protecting the driver's or the passenger's neck, head and shoulders during traveling or at the time of a car crash. The neck rest includes: a head part having a support frame formed in such a way as to surround a user's cervical vertebral of the neck to support the neck; a buffering part of a bellows form adapted to absorb shock and prevent crick in the neck at the time of a car crash or during a long- term traveling; and a support part adapted to join the neck rest to a seat of the vehicle. The neck rest further includes a head control part for allowing a user to easily and selectively control the head part from the outside using a lever.

Description

THE ERGONOMIC NECK SUPPORT APPARATUS FOR CAR SEAT WHICH HAS A FUNCTION OF SHOCK ABSORPTION

AND WRICK PREVENTION

Technical Field

[1] The present invention relates to a neck rest mounted on a seat for vehicles, and more particularly, to a structure of a neck rest, which includes a head part disposed on the front face thereof and having a support frame formed in such a way as to surround a user's cervical vertebral of the neck and a buffering part and a support part disposed on the rear face thereof, thereby minimizing a driver's or a passenger's shock and wholly protecting the driver's or the passenger's neck, head and shoulders during traveling or at the time of a car crash. Background Art

[2] A conventional rest mounted on a seat for vehicles is a head rest, but not a neck rest, and has a convenient structure just capable of supporting the head rather than protecting the neck.

[3] Such a head rest is various in its shape and material, and hence there have been various attempts to improve the function of the head rest. However, the head rest has a problem in that it cannot cope with shock and crick of intensity varied depending on various situations such as during a long-term driving or emergency braking and a car crash since it cannot thoroughly protect the neck. Disclosure of Invention Technical Problem

[4] Accordingly, there is a need for a rest having a structure, which can overcome the structural problems of the conventional head rest mounted in a vehicle, namely, the structural problems that the head rest cannot effectively cope with a pain in the shoulders, stiffness of neck muscles, neck pain due to emergency braking, additional neck pains due to repeated crashes by a chain collision generated by a car crash, and so on.

[5] Furthermore, the fact that two thirds of drivers experienced a neck pain due to traffic accidents including the car crash or a sudden stop shows that the neck region or cervical vertebral must be actually protected and supported. Technical Solution

[6] Accordingly, the present invention has been made in an effort to solve the above- mentioned problems occurring in the prior arts, and it is an object of the present invention to provide a structure of a neck rest for vehicles ergonomically designed, which includes: a head part disposed on the front face thereof and having a support frame formed in such a way as to surround a user's cervical vertebral of the neck; and a buffering part and a support part disposed on the rear face thereof, the buffering part adapted to effectively absorb shock, the support part having a structure to mount the neck rest on a seat of the vehicle. Moreover, the neck rest according to the present invention may further include a head control part for easily and precisely controlling the head part by a lever from the outside as occasion demands.

[7] Furthermore, it is preferable that the neck rest ergonomically designed is manufactured by measuring a flexural shape of the user's cervical vertebral using the most advanced laser technology.

Advantageous Effects

[8] As described above, when the neck rest for vehicles ergonomically designed to absorb shock and prevent crick in the neck is mounted on the seat of the vehicle in substitution for the conventional head rest, it can protect the user's neck joints and muscles from big and small traffic accidents, allow the driver to drive the vehicle in safe while keeping a good condition since the driver does not feel fatigue even during a longdistance traveling, reduce a manufacturing cost through a simple and intuitive structure, be used semi-permanently without any error, and effectively cope with various volumes and sizes of vehicles. Brief Description of the Drawings

[9] FIG. 1 is an exploded perspective view of a structure of a neck rest according to the present invention.

[10] FIG. 2 is a sectional view showing an inner structure of the neck rest after a buffering cover is removed.

[11] FIG. 3 is a perspective view showing a coupling structure of the neck rest after the buffering cover is removed.

[12] FIG. 4 is a perspective view showing a coupling structure of the neck rest after a mold frame is removed.

[13] FIG. 5 is a perspective view showing a coupling structure of the neck rest after a head cover is removed.

[14] FIG. 6 is a perspective view showing a coupling structure of the neck rest after a buffering cover is removed.

[15] FIG. 7 is a perspective view of a general structure of the neck rest.

[16] FIG. 8 is a plan sectional view of essential parts of the neck rest.

[17] FIG. 9 is a perspective view of a structure of the neck rest according to a preferred embodiment of the present invention. [18] FIG. 10 is a reference view of a structure of a buffering part according to another preferred embodiment of the present invention.

[19] FIG. 11 is a plan sectional view of an inner structure of a main body of the neck rest.

[20] FIG. 12 is a perspective view showing a used state of the neck rest joined to a seat for a vehicle.

[21] FIG. 13 is a reference view showing a control state by a fixed lever of a head control part.

[22] FIG. 14 is a reference view showing a fixed state by a rotation of the fixed lever of the head control part.

[23] FIG. 15 is a rear view showing a preferred embodiment of a rear face of a buffering part.

[24] FIG. 16 is a sectional view showing a detailed structure of an exhaust air volume control valve according to the present invention.

[25] FIG. 17 is a sectional view showing another structure of a pressure-maintaining valve.

[26] FIG. 18 is a sectional view showing another structure of an inflow volume control valve.

[27] FIG. 19 is a perspective view showing a used state that the neck rest according to the present invention is applied to a seat of a vehicle. Mode for the Invention

[28] Reference will be now made in detail to the preferred embodiment of the present invention with reference to the attached drawings.

[29] FIG. 1 is an exploded perspective view of a structure of a neck rest according to the present invention, and FIG. 2 is a sectional view showing an inner structure of the neck rest after a buffering cover is removed. The neck rest 100 for vehicles ergonomically designed to absorb shock and prevent crick in the neck includes: a head part 10 having a support frame which can surround a curved-shaped cervical vertebral of a user's neck to thereby support the head or neck; a corrugated buffering part 20 for absorbing shock and preventing crick in the neck during a car crash or a long term driving; and a support part 50 adapted to mount the neck rest 100 to a seat of a vehicle in a state where it is joined with the buffering part 20.

[30] Furthermore, the neck rest 100 for vehicles ergonomically designed to absorb shock and prevent crick in the neck further includes a wing part 16 disposed on upper and lower ends of the rear of the head part 10 to protect the head and the cervical vertebral, whereby it can prevent that a driver's head is severely pulled back from the seat 70 due to a shock by the car crash and support the cervical vertebral and shoulders not to be pressed. [31] The head part 10 of the neck rest according to the present invention is in a flexural shape that both sides project and the center is concaved in such a way as to surround the user's cervical vertebral including the neck, and is formed integrally with the buffering part 20 by performing a precision finishing using laser.

[32] The head part 10 of the neck rest ergonomically designed to absorb shock and prevent crick in the neck includes: a support frame 18 formed integrally with the buffering part 20 in the innermost portion thereof; a cushion member 11 joined to a front end of the support frame 18 and having elasticity; a head cover 12 inserted and joined to a fixing member 14 formed on the cushion member 11; and a coating layer 13 formed on the surface of the head cover 12, the coating layer 13 being coated or colored.

[33] Moreover, the neck rest according to the present invention may further include a support part 19 formed on a lower end of the buffering part 20 and adjacent to the head part 10 to prevent that the head cover 12 is easily separated from the fixing member 14' by a load of the head part 10.

[34] The support frame 18 of the head part of the neck rest according to the present invention is separated from the cushion member 11, but according to circumstances, may be formed integrally with the cushion member 11, and it will be described in another preferred embodiment of the present invention shown from FIG. 9 onwards.

[35] The head cover 12 is made of a material capable of protecting the driver's neck together with the cushion member 11, for instance, synthetic resin such as silicon or EPS (Expanded Poly Styrene), or may be formed integrally with the coating layer 13 according to circumstances.

[36] In addition, in case where the coating layer 13 is prepared separately, it may adopt a structure that it is in close contact with the surface of the head cover 12 by bonding and its end is inserted and fixed to a gap between the head cover 12 and the cushion member 11.

[37] The buffering part 20 joined with the cushion member 11 includes: a hollow portion

25 having an air layer formed therein for absorbing shock against the external pressure; a corrugated member 21 of a bellows form disposed along the outer circumferential surface of the hollow portion 25 and having a self -restoration force; a pressure- maintaining valve 23 mounted on one of a plurality of insertion holes 30 formed on the upper portion of the rear of the buffering part 20 for maintaining the internal pressure to prevent a discharge of the inside air to the outside due to a low pressure generated during a traveling; and an inflow volume control valve 24 mounted on the other one of the insertion holes 30 for allowing an inflow of air only in one direction from the outside to the inside to raise an inflow volume and a restoration speed of the outside air during a process that the air discharged by the external pressure is re-supplied to the hollow portion 25 by the self-restoration force of the corrugated member 21.

[38] FIGS. 3 to 7 are perspective views showing an outer structure of the neck rest and inner structures of the neck rest in a state where each of the essential parts is removed from the neck rest, and FIG. 8 is a plan sectional view of some essential parts of the neck rest according to the present invention. Valves of various kinds can be joined to the insertion holes 30 formed on the upper portion of the buffering part 20. The pressure-maintaining valve 23 mounted on one of the insertion holes 30 formed on the upper portion of the rear of the buffering part 20 includes: a vent hole 35 formed to be oriented toward the hollow portion 25; a stepped jaw 36 formed inwardly along the vent hole 35; and a pressing plate 34 disposed on the rear of the stepped jaw 36, the pressing plate 34 closing the vent hole 35 by elasticity of an elastic member 33. The elastic member 33 is fixed by a fixing cap 31, which has a discharge hole 32's and a fixing cap 31's disposed on the pressing plate 34 in such a way as to be prevented from a separation to the outside.

[39] Accordingly, the inside air is interrupt from being discharged to the outside when the air introduced into the hollow portion 25 does not act more than pressure, which can push out the pressing plate 34 closed by the elastic member 33, whereby elasticity of a predetermined pressure is supplied to the head part 10 during a normal traveling but the air discharged through the vent hole 35 while the pressing plate 34 is pushed can be discharged to the outside through the discharge hole 32 of the fixing cap 31 during a strong shock by collision.

[40] Additionally, the inflow volume control valve 24 mounted on the other one of the insertion holes 30 formed on the rear of the buffering part 20 is a one-way valve for a one-way flow of air, and includes: a screening hole 39 compressively joined to the insertion hole 30 via a packing and disposed to be oriented toward the hollow portion 25; a shielding plate 38 disposed inwardly along the screening hole 39; and an inlet 37 closed by an elastic member 33's mounted inside the shielding plate 38.

[41] The reason is that the outside air can be rapidly introduced into the hollow portion 25 by a shape-restoration of the corrugated member 21 when the inside air of the hollow portion 25 leaks out by the external pressure. The elastic member 33' which is weaker in elasticity than the elastic member 33 of the pressure-maintaining valve 23, is disposed on the inflow volume control valve 24.

[42] In the structure of the neck rest ergonomically designed to absorb shock and prevent crick in the neck, the buffering part 20 is controllable by pulling or pushing the corrugated member 21. However, since the corrugated member 21 has the restoration force, when the buffering part 20 is compressed by pushing the corrugated member 21, air is re-introduced through the inflow volume control valve 24 to thereby restore the corrugated member 21 to the original state, and hence, it is difficult to precisely control the corrugated member 21. In case where the buffering part 20 is controlled by pushing the corrugated member 21 to a predetermined depth, in order to prevent the restoration of the corrugated member 21, the elastic member 33 located between the screening hole 39 and the shielding plate 38 is designed in such a way as to have a stronger elasticity than the restoration force of the corrugated member 21.

[43] The support part 50 includes: a joining plate 57 disposed on the rear of the buffering part 20 and having the insertion holes 30; a fixing bracket 56 mounted on the outer circumferential surface of the joining plate 57 and having an opening; and upper and lower covers 54 and 55 respectively joined to the fixing bracket 56.

[44] Furthermore, joining bars 48 necessary for mounting the neck rest to the seat of the vehicle may be injection-molded integrally with a mold frame 52. Coupling members 53 are disposed on both front sides of the mold frame 52, on which the joining bars 48 are mounted, and fixed to coupling holes 58 respectively formed on the upper cover 54 and the lower cover 55 via bolts.

[45] The upper and lower covers 54 and 55 joined with the mold frame 52 are forcedly fit and fixed to a buffering cover 47' In this instance, it is preferable that the buffering cover 47' is made of a flexible material to relieve a shock against a rear seat passenger.

[46] FIGS. 9 and 10 are perspective views showing general structures of the neck rest according to the present invention. The corrugated member 21 of the buffering part 20 may be substituted with a structure of a corrugated member 21 having a stepped layer or a stepped jaw as shown in FIG. 10. The corrugated member 21 is made of a material, which has different thicknesses for a difference in physical property and strength of a cross section and a longitudinal section, whereby the corrugated member 21 has a structure that the longitudinal section is overlapped while absorbing shock by a friction force generated while shock generated from the head part 10 is absorbed and the cross section is overlapped.

[47] FIGS. 11 and 12 illustrate an inner structure and an applied example of the neck rest according to the present invention. The head part 10 according to the present invention is in a flexural shape that both sides project and the center is concaved in such a way as to surround the user's cervical vertebral including the neck, and is formed integrally with the buffering part 20 by performing a precision finishing using laser.

[48] The head part 10 of the neck rest ergonomically designed to absorb shock and prevent crick in the neck includes: a cushion member 11 formed integrally with the buffering part 20 and located in the innermost portion thereof, the cushion member 11 having elasticity; a head cover 12 having a fixing member 14 formed integrally therewith, the fixing member 14 being inserted and fixed to a groove 17 formed on the cushion member 11; and a coating layer 13 formed on the surface of the head cover 12 so as to surround the head cover 12. [49] The support frame 18 of the head part of the neck rest according to the present invention is separated from the cushion member 11, but according to circumstances, may be formed integrally with the cushion member 11, and it will be described in another preferred embodiment of the present invention shown from FIG. 9 onwards.

[50] The head cover 12 is made of a material capable of protecting the driver's neck together with the cushion member 11, for instance, synthetic resin such as silicon or EPS (Expanded Poly Styrene), or may be formed integrally with the coating layer 13 according to circumstances.

[51] In addition, in case where the coating layer 13 is prepared separately, it may adopt a structure that it is in close contact with the surface of the head cover 12 by bonding and its end is inserted and fixed to a gap between the head cover 12 and the cushion member 11.

[52] The buffering part 20 of the neck rest according to the present invention is formed integrally with the cushion member 11 as described above, and includes: a hollow portion 25 having an air layer formed therein for absorbing shock against the external pressure; a corrugated member 21 of a bellows form disposed along the outer circumferential surface of the hollow portion 25 and having a tension force acting by being folded; an exhaust air volume control valve 22 mounted on one of a plurality of insertion holes 30 formed on a lower end of the rear of the buffering part 20 to thereby control a unit discharge volume of the air introduced into the hollow portion 25 by the external pressure applied to the insertion hole 30; a pressure-maintaining valve 23 mounted on another one of the insertion holes 30 so as to maintain the internal pressure to prevent a discharge of the inside air to the outside due to a low external pressure generated during a traveling (flow due to vibration or movement of the vehicle); and an inflow volume control valve 24 mounted on the other one of the insertion holes 30 for allowing an inflow of air only in one direction from the outside to the inside to raise an inflow volume and a restoration speed of the outside air during a process that the air discharged by the external pressure is re-supplied to the hollow portion 25 by the self- restoration force of the corrugated member 21.

[53] In the structure of the neck rest 100 ergonomically designed to absorb shock and prevent crick in the neck, a plate is disposed in such a way as to be slightly inclined as shown in FIG. 13 and 14. Such a structure of the plate is constructed in consideration of that the direction of a force by a shock acts not in a horizontal direction but in a downwardly inclined direction since the head part 10 is relatively upwardly adjusted as much as an inclination angle of the plate when the plate is mounted on the seat 70 of the vehicle 60 in such a way as to be at a horizontal state.

[54] FIGS. 15 and 16 are rear views showing the rear face of the buffering part of the neck rest according to the present invention. The buffering part 20 has the plural insertion holes 30 disposed on the bottom thereof, to which valves of various kinds are joined. The exhaust air volume control valve 22 is mounted on one of the insertion holes 30 by a fixing member 29 and includes an opening 26 formed around the insertion hole 30 in such a way as to correspond to an cut aperture 28 formed to discharge air of the hollow portion 25, whereby a discharge area of air can be controlled as much as a section, where the cut aperture 28 of the buffering part 20 and the opening 26 of the exhaust air volume control valve 22 coincide with each other when the exhaust air volume control valve 22 is rotated by a control lever 27.

[55] FIG. 17 is a sectional view showing a detailed structure of the pressure-maintaining valve according to the present invention. The buffering part 20 has the plural insertion holes 30 disposed on the bottom thereof, to which valves of various kinds are joined, and the pressure-maintaining valve 23 is mounted on another one of the insertion holes 30. The pressure-maintaining valve 23 includes: a vent hole 35 formed to be oriented toward the hollow portion 25; a stepped jaw 36 formed inwardly along the vent hole 35; and a pressing plate 34 disposed on the rear of the stepped jaw 36, the pressing plate 34 closing the vent hole 35 by elasticity of an elastic member 33. The elastic member 33 is fixed by a fixing cap 31, which has a discharge hole 32, in such a way as to be prevented from a separation to the outside.

[56] Accordingly, the inside air is interrupt from being discharged to the outside when the air introduced into the hollow portion 25 does not act more than pressure, which can push out the pressing plate 34 closed by the elastic member 33, whereby elasticity of a predetermined pressure is supplied to the head part 10 during a normal traveling but the air discharged through the vent hole 35 while the pressing plate 34 is pushed can be discharged to the outside through the discharge hole 32 of the fixing cap 31 during a strong shock by collision.

[57] It is preferable that the pressure-maintaining valve 23 of the neck rest ergonomically designed to absorb shock and prevent crick in the neck is applied to the insertion hole 30 after the exhaust air volume control valve 22 is removed from the corresponding insertion hole 30 and the insertion hole 30, on which the exhaust air volume control valve 22 was mounted, is closed or an exhaust air volume is minimize by a control of the control lever 27.

[58] FIG. 18 is a sectional view showing a detailed structure of the inflow volume control valve of the neck rest according to the present invention. The buffering part 20 has the plural insertion holes 30 disposed on the bottom thereof, to which valves of various kinds are joined, and the inflow volume control valve 24 is mounted on the other one of the insertion holes 30. The inflow volume control valve 23 is a one-way valve for a one-way flow of air, and includes: a screening hole 39 joined to the insertion hole 30 by a screw-coupling and disposed to be oriented toward the hollow portion 25; a shielding plate (38) disposed inwardly along the screening hole (39) in such a way as to be at one end thereof fixedly attached to the inside of the screening hole and opened at the other end thereof; and an inlet 37 formed at the rear of the shielding plate 38.

[59] The inflow volume control valve is an auxiliary valve to allow the outside air to be rapidly introduced into the hollow portion 25 by a shape-restoration of the corrugated member 21 when the inside air of the hollow portion 25 leaks out by the external pressure. Accordingly, even though air is introduced toward the screening hole 39, the air cannot be discharged to the inlet 37 by the shielding plate 38. On the contrary, the outside air is introduced through the inlet 37, and introduced into the hollow portion 25 through the screening hole 39 after pushing the shielding plate 38, which is fixed only at one side thereof. Industrial Applicability

[60] As described above, the neck rest ergonomically designed to absorb shock and prevent crick in the neck is constructed by measuring the flexural shape of the user's cervical vertebral using the most advanced laser technology to thereby promoting a nerve flow of eight pairs of nerves of the cervical vertebral, thereby preventing a cervical pain or crick in the neck, providing comfort during a long term driving, and protecting the body from shock, such as fatal wounds in the neck and head, at the time of a traffic accident.

Claims

[1] A neck rest for vehicles which is ergonomically designed to absorb shock and prevent crick in the neck and is mounted on an upper portion of a seat of the vehicle to protect a user's body and provide a feeling of comfort, the neck rest comprising: a head part (10) adapted to support the user's neck or cervical vertebral; a buffering part (20) located on the rear of the head part (10) and adapted to absorb the shock and prevent the crick in the neck, the buffering part (20) having a hollow portion (25) having an air layer formed therein for absorbing shock by the external pressure and a corrugated member (21) of a bellows form disposed on the outer circumferential surface of the hollow portion (25) and having a self- restoration force enabling the folding and expanding thereof; a wing part (16) disposed on upper and lower ends of the rear of the head part (10) and adapted to protect the head and the cervical vertebral at the time of a car crash; a plurality of insertion holes (30) disposed on the rear of the buffering part (20); a pressure-maintaining valve (23) selectively joined to one of the insertion holes (30) and adapted to maintain the internal pressure to prevent the inside air of the hollow portion (25) from being discharged to the outside due to a low pressure generated during traveling; an inflow volume control valve (24) selectively joined to the other one of the insertion holes (30) such that air flows only in one direction from the outside to the inside to increase an inflow volume of the outside air and a restoration speed of the corrugated member (21) during a process where the air discharged from the hollow portion (25) to the outside by the external pressure applied to the buffering part (20) is re-introduced into the hollow portion (25) when the corrugated member (21) is restored to its original state; and a support part (50) mounted on the rear of the buffering part (20) and having joining bars to allow the neck rest to be mounted on the seat of the vehicle.

[2] The neck rest according to claim 1, wherein the head part (10) comprises a curved-shaped support frame adapted to surround the user's cervical vertebral part.

[3] The neck rest according to claim 1, wherein the head part (10) comprises: a cushion member (11) formed integrally with the buffering part (20) and located inside the head part (10), the cushion member (11) having elasticity; a head cover (12) having a fixing member (14) formed integrally therewith, the fixing member (14) being inserted and fixed to a groove (17) formed on the cushion member (11); and a coating layer (13) formed on the surface of the head cover (12) so as to surround the head cover (12). [4] The neck rest according to claim 1, wherein the buffering part (20) comprises: a plurality of insertion holes (30) formed on the rear thereof; and an exhaust air volume control valve (22) selectively joined to one of the insertion holes (30) and adapted to control a unit discharge volume of air introduced into the hollow portion (25) according to the external pressure. [5] The neck rest according to claim 4, wherein the exhaust air volume control valve

(22) comprises: a cut aperture (28) adapted to discharge the air of the hollow portion (25); an opening (26) formed thereon in such a way as to correspond to the cut aperture (28); and a control lever (27) adapted to rotate the exhaust air volume control valve (22) to control an exhaust air volume as much as a section, where the cut aperture (28) of the buffering part (20) and the opening (26) of the exhaust air volume control valve (22) coincide with each other. [6] The neck rest according to claim 1, wherein the pressure-maintaining valve (23) comprises: a vent hole (35) formed to be oriented toward the hollow portion (25); a stepped jaw (36) formed inwardly along the vent hole (35); a pressing plate (34) disposed on the rear of the stepped jaw (36); an elastic member (33) for allowing the pressing plate (34) to close the vent hole

(35); and a fixing cap (31) having a discharge hole (32) to prevent the elastic member (33) from escaping to the outside. [7] The neck rest according to claim 1, wherein the inflow volume control valve (24) comprises: a screening hole (39) joined to the insertion hole (30) and disposed to be oriented toward the hollow portion (25) formed on the buffering part (20) connected with the head part (10); a shielding plate (38) disposed inwardly along the screening hole (39) in such a way as to be at one end thereof fixedly attached to the inside of the screening hole and opened at the other end thereof; and an inlet (37) formed at the rear of the shielding plate (38) and adapted to prevent a discharge of the inside air and introduce the outside air through the shielding plate 38. [8] The neck rest according to claim 1, further comprising an elastic member (33's) disposed between the screening hole (39) and the shielding plate (38), the elastic member (33's) having stronger elasticity than the restoration force of the corrugated member (21) of a low depth in order to prevent the corrugated member (21) from being restored to its original state when the buffering part (20) is controlled by pushing the corrugated member (21) to a predetermined depth since the corrugated member (21) is restored to its original state by its restoration force due to re-introduction of air through the inflow volume control valve (24) when the corrugated member (21) is pushed and pulled.

[9] The neck rest according to claim 1, wherein the corrugated member (21) disposed on the buffering part (20) for a buffering effect is constructed of a form having a stepped layer or a stepped jaw.

[10] The neck rest according to claim 1, wherein the support part (50) comprises: a plate having joining holes for mounting joining bars of various sizes to be inserted and joined to the seat of the vehicle; and a buffering cover (47) joined to the plate and made of a flexible material.

[11] The neck rest according to claim 1, wherein the support part (50) comprises: a fixing bracket (56) joined to the buffering part (20); an upper cover (54) and a lower cover (55) joined to the fixing bracket (56); a mold frame (52) mounted with the joining bars (48) to be mounted to the seat of the vehicle; and a buffering cover (47's) adapted to surround the upper and lower covers (54; 55) joined to the mold frame (52).

[12] The neck rest according to claim 11, wherein the upper cover (54) and the lower cover (55) respectively have coupling holes (5's) and the mold frame (52) has coupling members (53) formed at both front sides thereof, so that the upper and lower covers (54; 55) are fixed to the mold frame (52) via bolts.