JP5903941B2 - Neck support device - Google Patents

Description

  The present invention relates to a neck support device.

  2. Description of the Related Art Conventionally, a neck support device is known that includes a seat back body having a headrest column insertion hole at the top and a cushion material that supports the occupant's neck between the headrest. This device has a head and neck protection function, reduces occupant fatigue during driving, and reduces the impact on the occupant's head when an accident occurs (see Patent Document 1).

  Moreover, what supports a passenger | crew's neck by winding a pillow-shaped object around a headrest with cloth and fixing with respect to a headrest with a hook-and-loop fastener is also known. (See Patent Document 2).

JP-A-8-332879 JP 2002-120626 A

  However, the vehicle neck support device disclosed in Patent Document 1 includes a cushion material that supports the occupant's neck, has a head and neck protection function, reduces fatigue during occupant driving, Although the shock is reduced when it occurs (for example, a collision from the rear), when the occupant sits down, the height of the cushion material against the neck is not adjusted according to the occupant's physique. There is a problem that the material moves to an inappropriate position, and the protection function of the head and neck of the occupant is not sufficient.

  Moreover, in the thing of patent document 2, it has the structure where a pillow-like thing is provided between a seat back main body and a headrest, the pillow-like thing is wound around a headrest with cloth, and it mounts with respect to a headrest with a hook-and-loop fastener. Therefore, what is shown in Patent Document 2 does not freely fix the height of the pillow. In recent years, a movable headrest that protects the head of an occupant (a driver or a passenger in a passenger seat) at the time of a rear-end collision from the rear of the vehicle has been adopted in luxury cars and the like. When the movable headrest shown in Patent Document 2 is used as a movable headrest that has a function of protecting the occupant's head by moving forward at the time of a collision from behind, It may not work properly. Also, pillows wrapped around the headrest need to protect not only the occupant's head but also the neck even when moving forward with the movable headrest (occupant side) And some measures to protect the occupant's neck are required.

  Therefore, the present invention has been made in view of the above problems, and the height of the neck support can be adjusted according to the physique of the occupant when the occupant is seated. An object of the present invention is to provide a neck support device that can be applied and can protect the neck and head.

  The problem-solving means of the present invention is a neck support that is attached between a seat back of a vehicle seat and a headrest and protects a neck of an occupant seated on the seat, and has a desired height relative to the seat back. The height adjustment mechanism that fixes the position is provided.

  In the above configuration, the neck support is attached to an arm that supports the headrest with respect to the seat back, has a cushion body therein, a positioning plate located below the cushion body, and the positioning plate It is preferable to include a ring member whose height is fixed with respect to the arm and an adjustment member that changes the diameter of the ring member.

  Further, the neck support has a base portion that is supported by the seat back and a movable portion that is movable relative to the base portion toward an occupant's head. It is preferable that the position is fixed by the height adjusting mechanism even when the movable portion is advanced or retracted.

  Since the neck support device of the present invention includes a height adjustment mechanism that fixes the position at a desired height with respect to the seat back, the neck support is applied to the neck of the occupant according to the physique of the occupant when seated. be able to. Since the neck is supported from behind, the stability of the neck is increased, the occupant's fatigue during driving can be reduced, and the neck and head can be protected.

  In addition, since the neck support is attached to an arm that supports the headrest with respect to the seat back, the neck support is firmly fixed, and misalignment hardly occurs. The neck support height adjustment mechanism includes a ring member attached to the arm and a fastening member that reduces the diameter of the ring member, and the neck support height can be adjusted by operating the fastening member. Is easy, fine adjustment of the height is easy, occupant fatigue during driving is reduced, and the neck and head protection functions are improved.

  Also, when the movable part of the headrest that has a movable part that can move forward and backward toward the head of the occupant moves forward and backward, the position of the neck support is fixed, so at the risk of a rear-end collision from the rear of the vehicle, Since the impact of the occupant's rear head side being struck against the headrest is mitigated without hindering the headrest movable portion from projecting toward the rear head side, the protection function of the neck and head is improved.

It is a side view of the neck support device for vehicles in an embodiment of the invention. It is a perspective view before neck support attachment. It is sectional drawing of the height adjustment mechanism of a neck support apparatus. It is explanatory drawing of the height adjustment mechanism of a neck support apparatus.

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

  The neck support device 1 of FIG. 1 is mounted on a driver seat or a passenger seat of a front seat of a vehicle. The neck support device 1 is preferably applied to both the driver seat and the passenger seat. Since the driver seat and the passenger seat are configured symmetrically, only the driver seat will be described here. The neck support device 1 can also be applied to the rear seat.

  The neck support device 1 of FIG. 1 includes a neck support 5 and a height adjustment mechanism 6 disposed between the headrest 3 and the seat back 2. The seat back 2 and the headrest 3 are connected by an arm 4 attached to the headrest 3. Between the seatback 2 and the headrest 3, a neck support 5 is attached to the arm 4 in which a urethane resin cushion body 5b protruding in the front and rear portions is covered with a cloth 5c. Under the neck support 5, a resin plate 7 (positioning plate) and a bearing collar (ring member) 8 are disposed as a height adjustment mechanism 6 of the neck support 5, and the bearing collar 8 includes fastening bolts 9 (described later). Adjusting member).

  The headrest 3 includes a base portion 3a fixed via an arm 4 connected to the top portion of the seat back 2, and a movable portion 3b that moves forward in the vehicle. In the present embodiment, the headrest 3 is described as having a movable front part, but a fixed type that does not operate can also be applied. The movable portion 3b is connected to the base portion 3a by two arms (not shown) that intersect with each other, and the movable portion 3b moves forward and backward in the vehicle. In the event of a collision from the rear of the vehicle, the vehicle advances forward and the impact of the occupant's head 20 being hit against the headrest 3 is alleviated, and the burden on the occupant's neck 30 is reduced.

  FIG. 2 is a perspective view before the neck support 5 of the neck support device 1 is attached to the arm 4. The neck support 5 attached between the seat back 2 and the headrest 3 allows the tip portions 4 a of the two arms 4 of the headrest 3 to be inserted into two insertion holes 5 b provided in the neck support 5. Next, a disc-shaped resin plate 7 with an insertion hole provided in the center portion and a resin bearing collar 8 are passed through the two arms 4 respectively, and further, two pieces provided at the top of the seat back 2 are provided. It inserts in the insertion hole 2a.

  FIG. 3 is a cross-sectional view of the height adjustment mechanism of the neck support device 1. The height adjusting mechanism 6 is disposed at a position where the neck support 5 is positioned below the cloth 5c covering the cushion body 5b of the neck support 5, and a resin plate 7 (positioning plate) for positioning the neck support 5, and the resin plate 7 as an arm. 4 includes a resin bearing collar 8 (ring member) for fixing the height to 4 and a fastening bolt 9 (adjusting member) for changing the diameter of the bearing collar 8. The resin plate 7 is provided with a flange portion 7a at the lower portion, and an anti-slip rubber sheet 10 is attached to the inner peripheral surface 7c of the flange portion 7a. Then, the bearing collar 8 is mounted on the outer peripheral portion 7d of the flange portion 7a of the resin plate 7. When the diameter of the bearing collar 8 is reduced, the resin plate 7 is held by the arm 4 via the anti-slip rubber sheet 10 so that the neck support 5 can be positioned. With the above-described anti-slip rubber sheet 10, the resin plate 7 improves the holding force to the arm 4. Even if the height adjusting mechanism 6 is configured without the non-slip rubber sheet 10, it is sufficient if the holding force to the arm 4 of the resin plate 7 can be secured.

  FIG. 4 is an explanatory view of the height adjustment mechanism 6 of the neck support device 1, (a) side view of the bearing collar 8, (b) top view before fastening bolts, and (c) after fastening bolts are fastened. FIG. The bearing collar 8 is provided with a screw hole 9a to which a fastening bolt 9 is attached. In the bearing collar 8, a hole 8 c for passing the flange portion 7 a of the resin plate 7 and the arm 4 is provided in the inner peripheral portion 8 b. The end 9b of the fastening bolt 9 attached to the bearing collar 8 is turned manually by the occupant to rotate it to reduce the diameter, thereby the resin plate 7 for positioning the height position of the neck support 5 is Fix the seat back at a desired height position. Here, the desired height position represents a height position at which the protrusion 5a of the neck support 5 hits the neck 30 of the occupant seated on the vehicle seat. Since the upper surface 7a of the resin plate 7 supports the neck support 5, if the upper surface 7a of the resin plate 7 is small, the neck support 5 is insufficiently fixed. Further, if the front portion 7b of the resin plate 7 projects too far forward, it may hit the occupant's neck 30 at the time of a vehicle collision, so it must be disposed at a position that does not project too far forward. Conversely, when the occupant rotates the fastening bolt 9 in the opposite direction to increase the diameter, the height fixing of the resin plate 7 to the arm 4 is released. When the fixing of the resin plate 7 to the arm 4 is released, the fixing of the height position of the neck support 5 is also released.

  In the present embodiment, the neck support 5 and the resin plate 7 are configured separately, but the resin plate 7 may be attached to the neck support 5 to be integrated. When the neck support 5 and the resin plate 7 are integrated, the number of parts can be reduced, and the installation workability is improved when the occupant adjusts the height position of the neck support 5.

  Next, the operation (operation) of the neck support device for a vehicle according to the embodiment of the present invention will be described.

  In order to release the fixing of the bearing collar 8 to the arm 4, the fastening bolt 9 is rotated in the direction of increasing the diameter. And the protrusion part 5a ahead of the neck support 5 adjusts to the height position which hits a passenger | crew's neck part 30. FIG. Here, the resin plate 7 and the bearing collar 8 are adjusted to a height position that supports the neck support 5 so that the height position of the neck support 5 does not shift. In order to reduce the diameter of the bearing collar 8, the occupant tightens the fastening bolt 9 to fix the resin plate 7 to the arm 4. After fixing the height position of the neck support 5, the occupant may sit on a seat (not shown) and reconfirm that the height position of the neck support 5 is in contact with the neck portion 30. If there is a deviation, the adjustment is performed again so that the protruding portion 5a in front of the neck support 5 properly hits the neck 30 of the occupant.

  Next, effects of the vehicle neck support device according to the embodiment of the present invention will be described.

  Since the neck support device 1 of the present invention includes a height adjustment mechanism 6 that fixes the position of the seat back 2 at a desired height, the neck support 5 is fitted to the occupant's physique when seated. It can be applied to the neck 30. Since the neck portion 30 is supported from behind, the stability of the neck portion 30 is increased, fatigue during driving of the occupant can be reduced, and the neck portion 30 and the head portion 20 can be protected.

  In addition, since the neck support 5 is attached to the arm 4 that supports the headrest 3 with respect to the seat back 2, the neck support 5 is firmly fixed and is not easily displaced.

The height adjustment mechanism 6 of the neck support 5 includes a resin plate 7 attached to the arm 4, a bearing collar 8, and a fastening bolt 9 that reduces the diameter of the bearing collar 8. The neck support 5 is rotated by rotating the fastening bolt 9. 5 can be adjusted, the height adjustment is easy, fine adjustment of the height is easy, the fatigue of the occupant is reduced, and the neck 30 and the head 20 are protected. improves.

  Further, when the movable portion 3a of the headrest 3 having the movable portion 3b that can move forward and backward toward the head of the occupant moves forward and backward, the position of the neck support 5 is fixed, so that an accident occurs (for example, from the rear In order to mitigate the impact of the occupant's head 20 being struck against the headrest 3 without hindering the movable part 3a from projecting toward the occupant's rear head side in the event of a collision), the occupant's neck 30 or head 20 protection functions are improved.

DESCRIPTION OF SYMBOLS 1 Neck support apparatus 2 Seat back 3 Headrest 3a Base part 3b Movable part 4 Arm 5 Neck support 5b Cushion body 6 Height adjustment mechanism 7 Resin plate (positioning plate)
8 Bearing collar (ring member)
9 Fastening bolt (adjustment member)

Claims (2)

A neck support attached between a seat back and a headrest of a vehicle seat and protecting a neck of an occupant seated on the seat, the neck support supporting the headrest with respect to the seat back A positioning plate that has a cushion body inside and is positioned below the cushion body, a ring member that fixes the positioning plate to the arm in height, and an adjustment that changes the diameter of the ring member With members,
A neck support device provided with a height adjusting mechanism for fixing a position at a desired height with respect to the seat back. The neck support is attached to the base portion side with respect to the headrest having a base portion supported by the seat back and a movable portion that can move forward and backward with respect to the head portion of the occupant with respect to the base portion. is the by the height adjusting mechanism, the neck support apparatus according to claim 1, stationary even when advancing and retracting of the movable portion is made.

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