JP2006334056A - Neck support of vehicle seat and vehicle seat apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a neck support and a vehicle seat apparatus which is capable of increasing the power to support the neck of an occupant by fitting the neck support to the shape of the neck of the occupant when the neck support is attached to a vertically movable headrest, and enhancing the stability when the neck support is attached. <P>SOLUTION: The neck support of the vehicle seat is formed with a prescribed length in the vertical direction as seen from the front of the seat 5 and with the same width as the headrest 4 in the width direction of the vehicle, and is semicircular to project forward as seen from a side. The neck support 20 has a band member 25 to attach the neck support to the headrest 4, and a hard panel part 23 formed of a material harder than a cushion material in the front of a seat back 3 so that the neck support 20 can be laid from the seat back 3 to the headrest 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat neck support and a vehicle seat device mounted on a vehicle seat back, and particularly when mounted on a vertically movable headrest, the occupant's neck shape is adapted to the occupant's neck shape. It relates to a device that has increased support to support the neck.

  Conventionally, a neck support for a vehicle seat is attached to the front surface of the headrest of the vehicle seat or the front surface between the headrest and the seat back to prevent the occupant's neck from becoming unstable while the vehicle is running. Various neck supports have been proposed in order to reduce fatigue of the occupant's neck.

  Patent Document 1 discloses a hanging pillow composed of a cylindrical pillow body and a hanging belt, and this hanging pillow is mounted between a seat back and a headrest separate from the seat back. When the suspension pillow is mounted, a suspension belt extending from both ends of the pillow body in the seat width direction is configured to be attached to the upper end of the seat back or the lower end of the headrest in a headband shape.

Patent Document 2 discloses a thin automobile pillow having a built-in Peltier element and a cooling function and a heating function, and the pillow is mounted on the front surface of the headrest. When wearing a pillow, a belt connected to the middle part of the left and right ends in the seat width direction is attached to the headrest in a headband shape.
Utility Model No. 3028257 JP 2000-139613 A

  By the way, when the pillow of Patent Document 1 is mounted on a vertically movable headrest whose headrest can move up and down with respect to the seat back, the pillow body is cylindrical, and thus the pillow body and the headrest or the pillow body and the headrest and the seat back. Since the contact area is small, it becomes unstable in the vertical direction, and the pillow may be displaced while the vehicle is running. In addition, the length of the headrest and the upper end of the seat back that protrudes forward of the seat of the pillow body, that is, the distance from the upper front of the seat back to the front of the pillow body, is determined according to the neck shape of the passenger. The distance cannot be adjusted and may not fit the occupant's neck shape.

  On the other hand, the pillow of Patent Document 2 is attached to the center portion of the headrest in the vertical direction, and since the pillow is thin, the pillow only supports the occupant's head. The instability cannot be reduced by preventing instability.

  The object of the present invention is to increase the supporting force to support the occupant's neck by adapting to the occupant's neck shape when the neck support is mounted on the vertically movable headrest, and stability in the mounted state of the neck support It is an object to provide a neck support and a vehicle seat device capable of increasing the height.

  The neck support for a vehicle seat according to claim 1, wherein the neck support for a vehicle seat mounted on the front surface of a headrest supported on the upper part of a seat back of the vehicle seat is movably supported from the front of the seat. The head support is formed in a substantially semicircular shape having a predetermined vertical length in the vehicle front direction and substantially the same width as the headrest in the vehicle width direction, and the front is convex in the side view. A mounting member is provided on the back of the neck support, and the neck support is formed to be harder than the cushion at the front of the seat back so that the neck support can be bridged between the seat back and the headrest. The hard part is provided.

  After setting the neck support over the seat back and the headrest, the neck support is attached to the headrest by fixing the head support to the headrest. When the neck support is attached to the headrest and seated on the seat, the neck of the occupant comes into contact with the front of the neck support, so the support force to support the occupant's neck is increased, and the occupant's neck is stabilized while the vehicle is running. Reduces occupant neck fatigue.

  The neck support of the vehicle seat according to claim 2 is the invention according to claim 1, wherein the predetermined vertical length is 10 to 20 cm, and the hard portion is provided from the upper end to the lower end of the neck support. It is characterized by being.

  The neck support for a vehicle seat according to claim 3 is the band member for attaching the neck support to the headrest by extending from the upper part of the neck support to the rear side of the headrest through the top of the headrest. It is characterized by being.

  The neck support for a vehicle seat according to a fourth aspect of the present invention is the invention according to the first aspect, wherein the hard portion has one or more plate-like portions that can be attached to and detached from a rear end portion of the neck support.

  A neck support for a vehicle seat according to a fifth aspect of the present invention is the neck support according to the fourth aspect of the invention, wherein the plate-like portion is formed in a horizontally long shape when viewed from the front, and is set in a vertically long state in which the mounting direction is changed by approximately 90 degrees. It is characterized in that it can be attached to the rear end portion.

  The neck support for a vehicle seat according to claim 6 is the invention according to claim 1, wherein the upper end portion of the hard portion is disposed at an angle of 10 degrees to 60 degrees with respect to the upper front surface of the seat back. The lower portion of the hard portion is in contact with the lower front surface of the headrest, and the lower end portion of the hard portion is in contact with the upper surface of the upper portion of the seat back so that the seat back and the headrest can be mounted in a stretched state.

  The neck support for a vehicle seat according to claim 7 is the invention according to claim 6, wherein the neck support is in contact with the front surface of the lower portion of the headrest and the upper end portion of the front portion of the seat back having lower elasticity than the front portion of the headrest. It is configured to be attachable.

  The neck support for a vehicle seat according to claim 8 is the invention according to claim 1, wherein the neck support has a lower part of a headrest having a lower overhanging portion in which an upper end portion of the neck support engages with an upper front surface of a seat back from the front side. It is configured to be able to be mounted so as to come into contact with the front surface and the lower end portion of the neck support comes into contact with the upper portion of the front portion of the seat back having lower elasticity than the front portion of the headrest.

  The vehicle seat device according to claim 9 includes a seat mounted on a vehicle having a seat cushion, a seat back, and a headrest supported so as to be vertically movable at an upper portion of the seat back, and a neck support attached to the headrest. In the vehicle seat device, the neck support has a predetermined vertical length when viewed from the front from the front of the seat and is formed to be substantially the same width as the headrest in the vehicle width direction, and the front is convex when viewed from the side. The mounting member for mounting the neck support to the headrest, the temperature adjusting means built in the neck support, and the temperature adjustment extending to the outside connected to the connecting portion of the neck support An operating line for operating the means, and at the rear end of the neck support, the neck support is against the seat back and the headrest. A hard part formed harder than the cushion material at the front part of the seat back so as to be able to be handed over is provided, and the operation line is configured to be hung on an upper end part of the seat back, and the connection part is It is provided near the hard part.

  Since the neck support is similar to the neck support of claim 1, the same effect as in claim 1 can be obtained. In addition, when a device having a cooling function or a heating function is applied as a temperature adjustment means built in the neck support, the neck where the blood vessels are concentrated can be directly cooled or heated, and passenger comfort is improved. Can be increased.

  According to a tenth aspect of the present invention, there is provided the vehicle seat device according to the ninth aspect, wherein the vertical movement distance of the headrest is 20 cm or less.

  According to an eleventh aspect of the present invention, there is provided the vehicle seat device according to the ninth aspect, wherein the connecting portion is provided at a lower portion of the neck support.

  The vehicle seat device according to claim 12 is the invention according to claim 9, wherein the connection portion has a height position of the connection portion equal to or higher than a seat back upper end portion, or a height position of the connection portion is higher than that of the seat back upper end portion. It is characterized by being configured to be low.

  According to a thirteenth aspect of the present invention, in the invention according to the ninth aspect, the neck support is in contact with the lower front surface of the headrest having a lower projecting portion in which an upper end portion of the neck support engages with an upper front surface of the seat back from the front side. The lower end of the neck support is configured to be attachable so as to contact the upper front surface of the seat back, and the operation line extends from the vicinity of the hard portion of the neck support in the seat width direction and passes through the upper end of the seat back. It is characterized by being configured to face the seat cushion from the rear surface of the seat back.

  According to the first aspect of the present invention, the neck support has a predetermined vertical length in front view from the front of the seat and is formed to be substantially the same width as the headrest in the vehicle width direction. Since it is formed in a convex semicircular shape, the front surface of the neck support is adapted to the neck shape of the occupant, and the supporting force for supporting the occupant's neck is increased. In addition, since the mounting member for mounting the neck support on the headrest is provided, the neck support upper end can be prevented from tilting forward even when the center of gravity of the neck support is relatively forward, and the neck support is mounted. In addition, the height of the neck support can be adjusted according to the height position of the headrest.

  In addition, since the rear part of the neck support is provided with a hard part that is made harder than the cushioning material at the front part of the seat back so that the neck support can be bridged between the seat back and the headrest, the seat The sinking of the neck support into the back and headrest is suppressed, and it can be mounted stably at an arbitrary height position.

  According to the invention of claim 2, the predetermined vertical length is 10 to 20 cm, and the hard portion is provided from the upper end portion of the neck support to the lower end portion, so the headrest is moved upward or downward. Even in this case, the neck support can be mounted on the seat back and the headrest.

  According to the invention of claim 3, the mounting member is a band member that extends from the top of the neck support to the rear side of the headrest via the top of the headrest and attaches the neck support to the headrest. It can be installed easily and stably.

  According to the invention of claim 4, since the hard part has one or more plate-like parts that can be attached to and detached from the rear end part of the neck support, the thickness of the neck support in the front-rear direction can be adjusted. Can be easily adapted to the neck shape of the occupant.

  According to the invention of claim 5, the plate-like portion is formed to be horizontally long when viewed from the front, and is configured to be mounted on the rear end portion of the neck support in a vertically long state in which the mounting direction is changed by approximately 90 degrees. Therefore, even when the headrest is moved to the uppermost position and the upper end of the seat back is separated from the lower end of the headrest, the front of the neck support conforms to the occupant's neck shape and supports the occupant's neck You can increase your power.

  According to the invention of claim 6, the neck support is configured such that the upper end portion of the hard portion contacts the lower front surface of the headrest disposed at an angle of 10 degrees to 60 degrees with respect to the upper front surface of the seat back, and the hard portion The lower end of the seat comes in contact with the front surface of the upper end of the seat back and can be mounted on the seat back and the headrest so that the seat back can be adjusted by adjusting the height position of the neck support in the mounted state. Since the distance from the front surface of the upper end of the neck to the front surface of the neck support varies, the position of the neck support in the front-rear direction can be adjusted according to the passenger's preference. In addition, since the front portion of the neck support is substantially semicircular, the front portion of the neck support is not greatly deformed by contact with the neck portion of the passenger during adjustment, so that the passenger does not feel uncomfortable.

  According to the seventh aspect of the present invention, the neck support is configured to be attachable so as to be in contact with the front surface of the lower portion of the headrest and the upper end portion of the seat back front portion, which is less elastic than the front portion of the headrest. In this state, depending on the weight near the occupant's neck, the front upper end of the low-back seatback that comes into contact with the rear surface of the neck support sinks moderately, and the comfort of the occupant when the neck support is worn The neck support can be securely fixed by the hard headrest. Moreover, since the head of the occupant can be securely fixed by the hard headrest at the time of the rear collision of the vehicle, the discomfort given to the occupant's neck can be reduced.

  According to the invention of claim 8, the neck support is in contact with the lower front surface of the headrest having the lower overhanging portion that engages the upper front surface of the seat back from the front side, and the lower end portion of the neck support is Since it is configured to be able to be mounted so as to come into contact with the upper part of the front part of the seat back slightly lower than the upper end of the seat back (for example, about 5 to 15 cm), when the neck support is attached to such a headrest, the neck The support protrudes greatly forward, and the distance from the upper front surface of the seat back to the front surface of the neck support increases. Therefore, in the state where the occupant is seated, the occupant's neck is positioned more forward, but the seat back front part, which is slightly lower than the upper end of the seat back, is less elastic, so the weight near the occupant's neck Accordingly, the seat back front upper portion having low elasticity that contacts the rear surface of the neck support sinks moderately, and the comfort of the occupant in the mounted state of the neck support is improved. Other effects similar to those of the seventh aspect can be obtained.

  According to the invention of claim 9, the neck support has a predetermined vertical length in front view from the front of the seat and is formed to be substantially the same width as the headrest in the vehicle width direction, and the front in the side view. It is formed in a convex semicircular shape, so that the neck support can be bridged between the seat back and the headrest on the mounting member for mounting the neck support on the headrest and the rear end of the neck support. Since the hard part formed harder than the cushion material of the front part of the seat back is provided, the same effect as in the first aspect can be obtained.

  In addition, a temperature adjustment means built in the neck support, and an operation line connected to the neck support connecting portion and extending to the outside to operate the temperature adjustment means, the operation line is hung on the upper end of the seat back. In addition, since the connection portion is provided in the vicinity of the hard portion, the rigidity of the operation line can be improved, and the neck support can be prevented from being pulled down by the operation line due to vibrations generated during traveling of the vehicle and shifted downward.

  According to the invention of claim 10, since the vertical movement distance of the headrest is 20 cm or less, the same effect as that of claim 2 can be obtained.

  According to the invention of claim 11, since the connecting portion is provided in the lower portion of the neck support, not only can the upper portion of the neck support be fixed to the headrest by the mounting member, but also by an operation line that is vertically separated from the mounting member. Since the lower part of the neck support can be fixed to the seat back, the stability of the neck support in the mounted state is further enhanced.

  According to the invention of claim 12, the connecting portion is configured such that the height position of the connecting portion is equal to the upper end portion of the seat back, or the height position of the connecting portion is lower than the upper end portion of the seat back. It is possible to further suppress the neck support from shifting downward due to vibrations generated while the vehicle is running, and the fixing stability of the neck support is improved.

  According to the invention of claim 13, the neck support is in contact with the lower front surface of the headrest having a lower overhanging portion where the upper end portion of the neck support engages with the upper front surface of the seat back from the front side, and the lower end portion of the neck support is the seat. The operation line extends from the vicinity of the hard part of the neck support in the seat width direction and passes from the rear surface of the seat back to the seat cushion via the upper end of the seat back. Because it is configured, even when the headrest is moved to the lowest position, the lower end surface of the headrest does not come into contact with the operation line, so that the operation line can be prevented from being pulled downward and the operation line and the connection portion can be prevented from being damaged. .

  The neck support for a vehicle seat according to the present invention is a neck support for a vehicle seat mounted on the front surface of a headrest supported so as to be movable up and down on a seat back upper portion of the vehicle seat. It has a predetermined vertical length in view and is formed to be approximately the same width as the headrest in the vehicle width direction, and is formed in a substantially semicircular shape with a convex front in side view, and the neck support is attached to the headrest. A hard part that is harder than the cushion material at the front part of the seat back is provided at the rear end part of the neck support so that the neck support can be bridged between the seat back and the headrest. It is provided.

  The vehicle seat device of the present invention includes a seat mounted on a vehicle having a seat cushion, a seat back, and a headrest supported on the upper portion of the seat back so as to be vertically movable, and a neck support attached to the headrest. In the vehicle seat device, the neck support has a predetermined vertical length when viewed from the front from the front of the seat, is formed to be substantially the same width as the headrest in the vehicle width direction, and has a convex shape when viewed from the side. It is formed in a semi-circular shape, and a mounting member for mounting the neck support on the headrest, a temperature adjusting means built in the neck support, and a temperature adjusting means connected to the neck support connecting portion and extending to the outside are operated. The neck support can be bridged between the seat back and the headrest at the rear end of the neck support. As described above, a hard part formed to be harder than the cushion material at the front part of the seat back is provided, and the operation line is configured to be hung on the upper end part of the seat back, and the connection part is provided in the vicinity of the hard part. Is.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a vehicle seat device 1 is installed in an automobile having a driver seat and a front passenger seat as front seats. FIG. 1 shows a vehicle seat device on the driver seat side. 1, a passenger seat device (not shown) is provided on the side of the driver seat device 1.
Although the vehicle seat device 1 is applied to both a driver seat device and a passenger seat device, the driver seat device and the passenger seat device are configured symmetrically. Explanation is omitted for the passenger seat device. In the following description, “front and rear” shown in FIG. 1 is “front and rear”, and further, the back side of the page is the right side and the front side of the page is the left side.

  As shown in FIG. 1, a vehicle seat device 1 includes a seat 5 having a seat cushion 2, a seat back 3, and a vertically movable headrest 4 supported on an upper portion of the seatback 3, and a front surface of the headrest 4. And a power cable 30 (which is covered with vinyl or the like and elastically changeable (flexible) in the extending direction). Corresponding to the operation line).

  As shown in FIG. 2, a seat back frame 6 made of a steel pipe material is provided inside the seat back 3, and an upper end portion of the seat back frame 6 has an inclination angle substantially the same as that of the seat back 3. Thus, a pair of pole support tubes 7 are fixed. A pair of poles 9 extending from the lower end portion of the headrest 4 are respectively inserted into these pole support pipes 7, and these headrests 4 are attached to the seat back 3 so as to be movable up and down (the vertical position can be adjusted). . Further, the upper end portion of the seat back 3 is provided with a locking portion 8, and when the headrest 4 is moved upward, the locking portion 8 is engaged with a recess provided in the middle portion of the pole 9. It is configured to be in a locked state.

  The vertical movement distance of the headrest 4 is 20 cm or less at the maximum. When the headrest 4 is moved from the lowest position to the highest position, the upper front surface of the seat back 3 (for example, the upper end of the seat back 3). From the lower front surface of the headrest 4 (for example, the center of the width direction of the headrest 4 at a position about 10 cm above the lower end of the headrest 4). Plane) is configured to form an angle of 10 to 60 degrees. The seat back 3 is provided with a cushion material, and the upper end portion of the front portion of the seat back 3 has lower elasticity than the front portion of the headrest 4.

Next, the neck support 20 will be described.
As shown in FIGS. 1 and 2, the neck support 20 has a predetermined vertical length in a front view from the front of the seat 5 and is formed to have substantially the same width as the headrest 4 in the vehicle width direction. The front part is formed in a substantially semicircular shape, and the cushion member 21, the heating wire 22 (which corresponds to the temperature adjusting means) built in the cushion member 21, the hard plate portion 23, and the connection And a band member 25 (which corresponds to the mounting member) for mounting the neck support 20 to the headrest 4.

  As shown in FIGS. 1 to 3, the cushion member 21 has a predetermined vertical length in front view from the front of the seat 5 and is formed to have substantially the same width as the headrest 4 in the vehicle width direction. The front of the cushion member 21 is formed in a substantially semicircular shape, and the cushion member 21 has a longitudinal length of about 8 cm to 10 cm and a vertical length of about 13 cm to 15 cm. The cushion member 21 is composed of a synthetic resin foam and a skin part, and the cushion member 21 has substantially the same elasticity as the seat cushion 2. On the rear side of the synthetic resin foam, a heating wire 22 sandwiched between a pair of synthetic resin plate members in the front-rear direction is provided. The rear end portion of the cushion member 21 is provided with a hard plate portion 23 made of synthetic resin from the upper end portion to the lower end portion, and the hard plate portion 23 is harder than the cushion material at the front portion of the seat back 3. It is configured. A hook-and-loop fastener such as a magic tape (registered trademark) for attaching a plate-like member 31 (plate-like portion) described later is attached to the rear end portion of the hard plate portion 23. The hard plate portion 23 and the plate-like member 31 correspond to the hard portion.

  A connection portion 24 is provided in the vicinity of the hard plate portion 23, that is, a lower portion of the left end portion of the cushion member 21, and one end portion of the power cable 30 is connected to the connection portion 24. The power cable 30 passes from the rear surface of the seat back 3 through the lower side of the seat cushion 2 via the upper end of the seat back 3, and to a cigar lighter socket (not shown) provided near the center of the instrument panel in the passenger compartment. The other end of the power cable 30 is connected. A switch for turning on and off the heating wire 22 and a temperature control switch are provided in the middle of the power cable 30. When the power switch is turned on, power is supplied to the heating wire 22 via the power cable 30, and a cushion is provided. The member 21 is heated.

  A pair of band members 25 for attaching the neck support 20 to the headrest 4 are provided on the upper portion of the hard plate portion 23. The band member 25 includes a band portion 26 connected to a mounting bracket on the upper portion of the hard plate portion 23, a length adjusting portion 27 for adjusting the length of the band portion 26, a rubber portion 28, and a clip 29. A band member 25 extending from the top of the hard plate portion 23 along the outer surface of the headrest 4 to the rear side of the headrest 4 via the top of the headrest 4, The neck support 20 is fixed to the headrest 4 by sandwiching the pole 9.

  As shown in FIGS. 1 to 3, when the neck support 20 is mounted on the headrest 4, the neck support 20 has the upper end portion of the hard plate portion 23 in contact with the lower front surface of the headrest 4, and the lower end of the hard plate portion 23. The portion is fixed to the seat back 3 and the headrest 4 so as to be in contact with the front surface of the upper end portion of the seat back 3. At this time, the height position of the connecting portion 24 is equivalent to the height position of the upper end portion of the seat back 3.

  Further, since the distance from the front surface of the upper end portion of the seat back 3 to the front surface of the neck support 20 varies by adjusting the height position of the neck support 20, as shown by a two-dot chain line in FIG. When the upper position of the neck support 20 is inclined rearward with the height position of the neck support 20 lowered, the neck support 20 is positioned forward than the height position of the neck support 20 indicated by the solid line, and the position of the neck support 20 in the front-rear direction Becomes the front side. At this time, the height position of the connection portion is lower than the height position of the upper end portion of the seat back 3.

Next, the plate-like member 31 attached to the rear end portion of the hard plate portion 23 will be described.
As shown in FIGS. 3 to 5, the plate-like member 31 is made of a synthetic resin material and is formed in substantially the same shape as the rear end portion of the hard plate portion 23. It is. Since hook-and-loop fasteners are affixed to the front side and the rear side of the plate-like member 31, the plate-like member 31 is configured to be detachable at the rear end portion of the hard plate portion 23, depending on the neck shape of the occupant It is possible to adjust the thickness of the neck support 20 in the front-rear direction by attaching one or more plate-like members 31 to the rear end portion of the hard plate portion 23. As described above, the vertical movement distance of the general headrest 4 is 20 cm or less at the maximum. However, as shown in FIG. 4, as shown in FIG. Even when it is applied to the headrest 4 that can move upward by about 30 cm with a seat, the mounting direction of the plate-like member 31c is changed to about 90 degrees and is attached to the rear end portion of the hard plate portion 23 in the vertically long state. The support 20 can support the occupant's neck.

Next, functions and effects of the vehicle seat device 1 and the neck support 20 described above will be described.
The vehicle seat device 1 has a predetermined vertical length when viewed from the front from the front of the seat, is formed to be substantially the same width as the headrest in the vehicle width direction, and has a substantially semicircular shape with a convex front when viewed from the side. -Shaped neck support 20, a band member 25 for attaching the neck support 20 to the headrest 4, and the neck support 20 spans the seat back 3 and the headrest 4 at the rear end of the neck support 20. Since the hard plate portion 23 formed harder than the cushion material at the front portion of the seat back 3 is provided so as to be possible, the front surface of the neck support 20 conforms to the occupant's neck shape, and the occupant's neck portion Supporting ability to support is increased.

  In addition, even when the center of gravity of the neck support 20 is on the relatively front side, the upper end of the neck support 20 can be prevented from tilting forward, the stability in the mounted state of the neck support 20 is increased, and the movable headrest 4 Therefore, the height position of the neck support 20 can be adjusted according to the height position of the headrest 4. Moreover, the sinking of the neck support 20 into the seat back 3 and the headrest 4 is suppressed by the hard plate portion 23, and the neck support 20 can be mounted stably at an arbitrary height position.

  In addition, the heating device includes a heating wire 22 built in the neck support 20 and a power cable 30 connected to the connection portion 24 of the neck support 20 and extending to the outside to operate the heating wire 22. Since the connection portion 24 is provided in the vicinity of the hard plate portion 23 while being configured to be hung on the upper end portion, the rigidity of the power cable 30 is improved, and the neck support 20 is powered by the vibration generated during traveling of the vehicle. It is possible to prevent the cable 30 from being pulled downward by being pulled.

  Further, since the vertical movement distance of the headrest 4 is 20 cm or less, the headrest 4 is mounted with the neck support 20 bridged over the seat back 3 and the headrest 4 even when the headrest 4 is moved upward or downward. can do. Further, since the connecting portion 24 is provided at the lower portion of the neck support 20, the upper portion of the neck support 20 can be fixed to the headrest 4 by the band member 25, and the power cable 30 spaced apart from the band member 25 in the vertical direction. Thus, the lower portion of the neck support 20 can be fixed to the seat back 3, so that the stability of the neck support 20 in the mounted state is further enhanced. Moreover, since the connection portion 24 is configured such that the height position of the connection portion 24 is equal to the upper end portion of the seat back 3, or the height position of the connection portion 24 is lower than the upper end portion of the seat back 3. It is possible to further suppress the neck support 20 from shifting downward due to vibrations generated while the vehicle is running, and the stability of the neck support 20 is improved.

  In the neck support 20, the vertical length is 10 to 20 cm, and the hard plate portion 23 is provided from the upper end portion to the lower end portion of the neck support 20, so that the headrest 4 is moved upward or downward. In this case, the neck support 20 can be mounted on the seat back 3 and the headrest 4 in a state of being bridged. Furthermore, since the band member 25 for attaching the neck support 20 to the headrest 4 is provided and extended from the upper part of the neck support 20 to the rear side of the headrest 4 through the top of the headrest 4, On the other hand, the neck support 20 can be easily and stably attached.

  Further, since one or more detachable plate-like members 31 are provided at the rear end of the hard plate portion 23, the thickness of the neck support 20 in the front-rear direction can be adjusted, and the front surface of the neck support 20 is placed on the occupant's neck. It can be easily adapted to the shape of the part. These plate-like members 31 are formed in a horizontally long shape when viewed from the front, and are configured to be mounted on the rear end portion of the hard plate portion 23 in a vertically long state in which the mounting direction is changed by approximately 90 degrees. Even when the upper end of the seat back 3 and the lower end of the headrest 4 are separated from each other by moving to the uppermost position, the front surface of the neck support 20 is adapted to the shape of the occupant's neck and supports the occupant's neck Can be increased.

  Furthermore, the neck support 20 is in contact with the lower front surface of the headrest 4 where the upper end portion of the hard plate portion 23 is disposed at an angle of 10 to 60 degrees with respect to the upper front surface of the seat back 3. Since the lower end portion can be mounted on the seat back 3 and the headrest 4 so as to be in contact with the front surface of the upper end portion of the seat back 3, the height position of the neck support 20 in the mounted state is adjusted. Since the distance from the front surface of the upper end portion of the seat back 3 to the front surface of the neck support 20 varies, the position of the neck support 20 in the front-rear direction can be adjusted according to the preference of the occupant. In addition, since the front portion of the neck support 20 is substantially semicircular, the front portion of the neck support 20 is not greatly deformed due to contact with the neck portion of the passenger during adjustment, so that the passenger does not feel uncomfortable.

  Further, the neck support 20 is configured to be attachable so as to be in contact with the lower front surface of the headrest 4 and the upper end portion of the front portion of the seat back 3 which is less elastic than the front portion of the headrest 4, so that the occupant can sit In this state, the front upper end portion of the seat back 3 having low elasticity that comes into contact with the rear surface of the neck support 20 sinks appropriately in accordance with the weight in the vicinity of the neck of the occupant, and the occupant in the mounted state of the neck support 20 The neck support 20 can be securely fixed by the hard headrest 4. Moreover, since the head of the occupant can be reliably fixed by the hard headrest 4 at the time of the rear collision of the vehicle, the discomfort given to the occupant's neck can be reduced.

Next, a second embodiment of the present invention will be described with reference to FIGS. However, the same reference numerals are given to the same components as those in the above embodiment, and only different components will be described.
The second embodiment is an example in which the neck support 20 is applied to the vehicle seat device 1A having the saddle type headrest 4A.

  As shown in FIGS. 6 and 7, a lower projecting portion 4 a that protrudes downward is formed at the front lower portion of the headrest 4 </ b> A, and the headrest 4 </ b> A has a longer front-rear length than the seatback 3 </ b> A. An engaging portion 3a that engages with the lower overhanging portion 4a is formed on the upper portion of the seat back 3A. As shown in FIG. 8, when the headrest 4A is moved to the lowest position, the lower overhanging portion 4a is engaged. It engages with the portion 3a from the front side. As in the first embodiment, the seat back 3A is provided with a cushion material, and the upper portion of the front portion of the seat back 3A has lower elasticity than the front portion of the headrest 4A.

As shown in FIGS. 6 to 8, one end of a power cable 30 is connected to the connection part 24 in the vicinity of the hard plate part 23, and the power cable 30 is extended in a slackened state in the seat width direction. Then, the cigarette lighter provided near the center of the instrument panel in the passenger compartment is passed through the lower side of the seat cushion 2 from the rear surface of the seat back 3A via the upper end of the seat back 3A and fixed there with a clip. The other end of the power cable 30 is connected to the socket.
Therefore, even when the headrest 4A is moved to the lowest position, the lower end surface of the headrest 4A is not in contact with the power cable 30.

  As shown in FIG. 6, in the state where the neck support 20 is mounted on the headrest 4A, the neck support 20 has the upper end portion of the neck support 20 in contact with the front surface of the downward projecting portion 4a of the headrest 4A, and the lower end portion of the neck support 20 Is fixed to the seat back 3A and the headrest 4A in a bridging state so as to contact the front surface of the engaging portion 3a of the seat back 3A. At this time, since the upper end portion of the neck support 20 comes into contact with the front surface of the downward projecting portion 4a having a longer front-rear length than the seat back 3A, the neck support 20 protrudes greatly forward.

  As described above, the neck support 20 is in contact with the front surface of the lower overhanging portion 4a that the upper end portion of the neck support 20 engages with the upper front surface of the seat back 3A from the front side, and the lower end portion of the neck support 20 is the seat back 3A. Since it is configured to be able to be mounted so as to come into contact with the front surface of the engaging portion 3a slightly below the upper end portion, when the neck support 20 is mounted on such a headrest 4A, the neck support 20 projects greatly forward. The distance from the upper front surface of the seat back 3A to the front surface of the neck support 20 becomes longer.

  Therefore, the occupant's neck is positioned more forward, but the engagement portion 3a is less elastic than the front surface of the headrest 4A, and the neck support 20 is viewed from the side by contact with the lower overhanging portion 4a. In this state, the weight of the occupant's neck is reduced because the contact area between the rear surface of the hard plate 23 around the lower end of the neck support 20 and the front surface of the seat back 3A is reduced. Accordingly, the front upper portion of the seat back 3A having low elasticity that comes into contact with the rear surface of the neck support 20 sinks moderately, and the comfort of the occupant when the neck support 20 is worn is improved. Moreover, since the head of the occupant can be securely fixed by the hard headrest 4A at the time of the rear collision of the vehicle, the discomfort given to the occupant's neck can be reduced.

  Further, the power cable 30 extends in the seat width direction from the vicinity of the hard plate portion 23 of the neck support 20 and is configured to go from the rear surface of the seat back 3A toward the seat cushion 2 via the upper end portion of the seat back 3A. Therefore, even when the headrest 4A is moved to the lowest position, the lower end surface of the headrest 4A is not in contact with the power cable 30, so that the power cable 30 is pulled downward and the power cable 30 and the connection portion 24 are damaged. Can be prevented. Other configurations, operations, and effects are the same as those in the above-described embodiment.

Next, a modified example in which the above embodiment is partially modified will be described.
1] In the above embodiment, a hook-and-loop fastener is provided without providing the hard plate portion 23 at the rear end portion of the cushion member 21, and one or more plate-like members 31 are attached to the rear end portion of the cushion member 21. May be. In that case, the plate-like member 31 corresponds to a hard part.
2] In the above embodiment, instead of the band member 25, a rubber mounting member that extends to the rear side of the headrest 4, 4 </ b> A is provided at each upper end portion of each end portion of the neck support 20 in the seat width direction. The neck support 20 may be fixed to the headrests 4 and 4A by the elastic force of the members.

3] Even in the case of the saddle type headrest 4A of the second embodiment, one or more plate-like members may be attached to the rear end portion of the hard plate portion 23 of the neck support 20, and the attachment direction is changed by approximately 90 degrees. The plate-like member may be mounted in the vertically long state.
4] In the above-described embodiment, the shape of the neck support 20 is not limited to a substantially semicircular shape with a convex front in a side view, and may be a shape as shown in FIGS. As shown in FIG. 1, one or more plate-like members 31 may be attached to the rear end portion of the neck support 20, or the plate-like member may be attached in a vertically long state in which the attachment direction is changed by approximately 90 degrees. .

5] In the above embodiment, a tube may be provided in the cushion member 21 instead of the heating wire 22, and the tube may be connected to an air conditioner to send warm air or cold air from the air conditioner to the tube. The cushion member 21 may be heated or cooled by being provided inside the cushion member 21.
6] In addition, those skilled in the art can implement the present invention in various forms with various modifications, and the present invention includes such various modifications.

It is a side view of the vehicle seat apparatus of the Example of this invention. It is a front view of a headrest, a seat back, and a neck support. It is a side view of a headrest, a seat back, and a neck support showing a state in which two plate-like members are attached to the neck support. It is a side view of a headrest, a seat back, and a neck support showing a state in which two plate-like members and a plate-like member whose mounting direction is changed by approximately 90 degrees are attached to the neck support. It is a front view of a headrest, a seat back, and a neck support showing a state in which two plate-like members and a plate-like member whose attachment direction is changed by approximately 90 degrees are attached to the neck support. FIG. 3 is a diagram corresponding to FIG. FIG. 3 is a diagram corresponding to FIG. It is a side view of a headrest, a seat back, and a neck support which show the state which moved a saddle type headrest to the lowest position. It is a side view of the neck support in a modification. It is a side view of the neck support in a modification. It is a side view of the neck support in a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat apparatus 2 Seat cushion 3 Seat back 4 Headrest 4a Lower overhang | projection part 5 Seat 20, 20A, 20B, 20C Neck support 22 Heating wire 23 Hard board part 24 Connection part 25 Band member 30 Power supply line 31 Plate-like member

Claims (13)

In the neck support of the vehicle seat mounted on the front surface of the headrest supported so as to be movable up and down at the upper part of the seat back of the vehicle seat,
The neck support has a predetermined vertical length when viewed from the front from the front of the seat and is formed to be substantially the same width as the headrest in the vehicle width direction, and has a substantially semicircular shape with a convex front when viewed from the side. Formed,
A mounting member for mounting the neck support on the headrest is provided,
The rear end portion of the neck support is provided with a hard portion that is formed to be harder than the cushion material of the front portion of the seat back so that the neck support can be bridged between the seat back and the headrest. Neck support for vehicle seats.   The neck support for a vehicle seat according to claim 1, wherein the predetermined vertical length is 10 to 20 cm, and the hard portion is provided from the upper end portion to the lower end portion of the neck support.   2. The neck support for a vehicle seat according to claim 1, wherein the mounting member is a band member that extends from an upper portion of the neck support to a rear side of the headrest via a top portion of the headrest and attaches the neck support to the headrest. .   2. The neck support for a vehicle seat according to claim 1, wherein the hard portion includes one or more plate-like portions that can be attached to and detached from a rear end portion of the neck support.   The plate-like portion is formed in a horizontally long shape when viewed from the front, and is configured to be attached to the rear end portion of the neck support in a vertically long state in which the mounting direction is changed by approximately 90 degrees. Neck support for vehicle seats as described in 1.   The neck support is configured such that the upper end portion of the hard portion is in contact with the lower front surface of the headrest disposed at an angle of 10 to 60 degrees with respect to the upper front surface of the seat back, and the lower end portion of the hard portion is the seat back 2. The neck support for a vehicle seat according to claim 1, wherein the neck support is configured to be able to be mounted on the seat back and the headrest in contact with the front surface of the upper end portion of the vehicle.   The vehicle according to claim 6, wherein the neck support is configured to be attachable so as to come into contact with a front surface of a lower portion of the headrest and an upper end portion of a front portion of the seat back that is less elastic than a front portion of the headrest. Seat neck support.   The neck support is in contact with the lower front surface of the headrest having a lower projecting portion where the upper end portion of the neck support engages with the upper front surface of the seat back from the front side, and the lower end portion of the neck support is more elastic than the front portion of the headrest. The neck support for a vehicle seat according to claim 1, wherein the neck support is configured to be able to be mounted so as to come into contact with an upper part of a front portion of a low seat back. In a vehicle seat device comprising: a seat mounted on a vehicle having a seat cushion, a seat back, and a headrest supported on the upper portion of the seat back so as to be vertically movable; and a neck support mounted on the headrest.
The neck support has a predetermined vertical length when viewed from the front from the front of the seat and is formed to be substantially the same width as the headrest in the vehicle width direction, and has a substantially semicircular shape with a convex front when viewed from the side. Formed,
A mounting member for mounting the neck support on the headrest;
Temperature adjusting means built in the neck support;
An operation line connected to the connection portion of the neck support and extending to the outside to operate the temperature adjusting means,
In the rear end portion of the neck support, a hard portion formed harder than the cushion material of the front portion of the seat back is provided so that the neck support can be bridged between the seat back and the headrest,
The operation line is configured to be hung on an upper end portion of a seat back, and the connection portion is provided in the vicinity of a hard portion.   The vehicular seat device according to claim 9, wherein the vertical movement distance of the headrest is a maximum of 20 cm or less.   The vehicle seat device according to claim 9, wherein the connection portion is provided in a lower portion of the neck support.   The connection portion is configured such that the height position of the connection portion is equal to or higher than the upper end portion of the seat back, or the height position of the connection portion is lower than the upper end portion of the seat back. Vehicle seat device. The neck support is mounted so that the upper end of the neck support is in contact with the lower front surface of the headrest having a downward projecting portion that engages with the upper front surface of the seat back from the front side, and the lower end of the neck support is in contact with the upper front surface of the seat back. Configured and possible
The operation line is configured to extend in the seat width direction from the vicinity of the hard portion of the neck support, and is configured to go from the rear surface of the seat back to the seat cushion via the upper end portion of the seat back. The vehicle seat device according to claim.

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