JP3123994U - Headrest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a headrest capable of relieving fatigue at the time of daily riding and reducing a burden at the time of riding by a wheelchair user.
SOLUTION: A rear rest portion 2 on a side where a stay to be held on a seat back is provided and a front rest portion 4 on a side in contact with a passenger are formed in a reverse V-shape with a flexible material, and the rear rest Cores 6 and 7 are provided in each of the front part and the front rest part, and the upper end of each core material is pivotally supported so that the rear rest part can swing relative to the front rest part side, By pivotally supporting the upper end of the stay and the lower end of the back rest side core so that the entire headrest can swing, the lower end of the front rest is positioned below the lower end of the rear rest. The occupant's neck is in contact with the front rest, and a recess 5 is provided in the front rest that falls from the back of the occupant to the neck.
[Selection] Figure 3

Description

  The present invention relates to a seat for an automobile and a headrest for a wheelchair placed on an automobile, and more specifically, a headrest that not only prevents whiplash at the time of an accident, but also eliminates fatigue during daily riding. About.

Headrests that support the occupant's rear head by protruding above the seat back of an automobile are known (Patent Documents 1 and 2). Further, a headrest that supports not only the passenger's back head but also the neck is known (Patent Document 3).
Japanese Patent Publication No. 2002-388 JP-A-8-252146 JP-A-8-332879 Patent Publication 2001-17472

  General headrests are designed to prevent the rider's head from suddenly bending backward and causing whiplash due to the impact of an accident such as a rear-end collision. The points to be solved were not considered much. That is, as shown in FIG. 6, the headrest H projecting above the seat back S of the automobile is in contact with only the back of the occupant T and not in contact with the occupant's neck. Further, the back of the occupant T and the headrest H are not normally in contact with each other, and it is normal for the occupant to contact with each other only after the neck is intentionally tilted back. Therefore, there is a problem that the passenger's back head is swung to the left and right due to the lateral acceleration of the automobile, and the passenger unintentionally resists this, resulting in fatigue.

  In this regard, Patent Document 1 describes a headrest provided with a pivotal support at the upper end and swinging downward. This headrest can always contact the occupant's back head by tilting the lower end forward. However, since the upper end serving as a pivotal portion remains in a fixed position, the entire headrest does not contact the back of the head, but only the lower end of the head rest only partially contacts the back of the head.

  Patent Document 3 describes a headrest provided with a member that comes into contact with a passenger's neck. However, the headrest has a headrest part that supports the back of the head and a member that abuts on the neck of the passenger, and the passenger's back of the head and the headrest part are not normally in contact with each other. However, depending on the inclination angle of the seat back and the occupant's body shape, a problem that the neck is pushed too much is expected.

  On the other hand, as described in Patent Document 4, a wheelchair seat in which a wheelchair is separable into a chassis and a seat portion and the seat portion can be mounted on a vehicle has been proposed. Many people had weak muscle strength, and the above-mentioned tendency became more remarkable.

  The present invention was created for the purpose of providing a headrest that solves the above-mentioned problems, and includes a rear rest portion on the side where a stay to be held on the seat back is provided, and a front rest on the side in contact with the passenger. A flexible material is formed in an inverted V shape so that the portion forms an inverted V shape, and a core material made of a rigid material is provided in each of the rear rest portion and the front rest portion, and the front rest portion side The upper end of each core member is pivotally supported so that the rear rest portion can swing relative to the upper end of the stay, and the upper end of the stay and the lower end of the core member on the rear rest portion side so that the entire headrest can swing relative to the stay. With the headrest pivotally supported, the lower end of the front rest portion is positioned below the lower end of the rear rest portion so that the passenger's neck is in contact with the front rest portion, and the front Characterized in that the portion extending into the neck from the back of the head of the occupant to rest portions provided with depressions drops.

  Therefore, in the headrest of the present invention, first, the entire headrest swings with respect to the stay with the lower end as a pivot point, and the front rest portion on the side contacting the passenger swings with respect to the entire headrest with the upper end as a pivot point. The front rest portion on the side in contact with the occupant can be translated forward while maintaining the optimum angle along the occipital portion of the occupant, and the entire occipital region of the occupant is supported.

  Secondly, the lower neck of the front rest portion is positioned below the lower end of the rear rest portion so that the neck of the passenger comes into contact with the front rest portion, so that not only the rear head of the passenger but also the neck is supported. Produces an effect.

  Thirdly, since the front rest part is provided with a depression where the part from the back of the passenger to the neck falls, it will not only abut against the passenger's back of the head and neck, but will also fit these in the depression. The effect | action which supports the part from a person's back head to a neck also in a horizontal direction is produced.

  As a result, the headrest of the present invention supports not only the longitudinal direction of the passenger but also the lateral acceleration of the vehicle, and the range extends to the neck that supports the heavy head. Therefore, there is an effect that the fatigue at the time of daily riding is remarkably reduced. In addition, the rear head and neck of the occupant are supported against lateral impacts at the time of side collision, which was not taken into consideration in the headrest of the prior art, so that they suddenly bend in the lateral direction and damaged. The effect which is prevented from receiving is produced. Furthermore, since the back of the head and the neck are reliably supported, an effect of preventing the wheelchair user having weak neck strength such as the elderly from being adversely affected by acceleration in the front-rear and left-right directions when the vehicle is running is also achieved.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 4 are views showing an embodiment of a headrest according to the present invention. The headrest 1 of the present invention has a basic structure in which a core material made of a rigid material is provided in an inverted V-shaped body made of a flexible material such as urethane with a cloth stretched on its surface in order to restrict the movement thereof. It has a configuration.

  Reference numeral 2 in the figure denotes a rear rest portion on the side where the stay 3 to be held by the seat back S is provided, and a metal core 6 is arranged in the vertical direction. Reference numeral 4 in the figure denotes a front rest portion on the side in contact with the occupant, and a metal core member 7 is arranged in the vertical direction. The above-described core member 6 on the rear rest side and the core member 7 on the front rest side are coupled in an inverted V shape in which each side is swingable by using the upper ends as pivot portions 9. Further, the lower end of the core member 6 on the rear rest part side is pivotally supported by the pivotal support part 8 with respect to the upper end of the stay 3 so that the entire headrest can swing relative to the stay.

  The lower end of the front rest portion 4 is positioned below the lower end of the rear rest portion 2 so that not only the back head of the passenger T but also the neck portion is in contact with the front rest portion. And by providing the hollow 5 in which the part from a passenger's back head to a neck falls in the center of a front rest part, a passenger's back head and neck can be stored in a hollow (refer to Drawing 5).

  The headrest 1 having the above-described configuration can be obtained by adjusting the angle of the front rest portion with respect to the rear rest portion 2 even if the headrest is swung with respect to the seat back S and the front rest portion 4 is moved forward. The portion can move forward in parallel while maintaining the angle with respect to the original seat back (see FIGS. 3 and 4).

The perspective view of the headrest of this device. The perspective view observed from a different angle same as the above. FIG. Sectional drawing of the state swung to a different position same as the above. The side view which shows a use condition same as the above. The side view which shows the use condition of the headrest of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Headrest 2 Front rest part 3 Stay 4 Back rest part 5 Recess 6 Core material 7 Core material 8 Pivot part 9 Pivot part

Claims (3)

  The flexible material is formed in an inverted V shape so that the rear rest portion on the side where the stay to be held by the seat back is provided and the front rest portion on the side in contact with the passenger form an inverted V shape. In addition, a core material made of a rigid material is provided in each of the rear rest portion and the front rest portion, and the upper end of each core material is pivotally supported so that the rear rest portion can swing with respect to the front rest portion side. In the headrest that pivotally supports the upper end of the stay and the lower end of the rear rest side core so that the entire headrest can swing relative to the stay, the lower end of the front rest portion is positioned below the lower end of the rear rest portion. By doing so, the occupant's neck is in contact with the front rest portion, and a recess is provided in the front rest portion so that a portion from the occupant's rear head to the neck portion falls. Door.   The headrest according to claim 1, wherein the seat back is a seat back of a vehicle seat. The headrest according to claim 1, wherein the seatback is a seatback of a wheelchair placed on a vehicle.

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