JP2013177094A - Occupant protective device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an occupant protective device capable of safely protecting an occupant even when receiving a shock from a side surface, by being installed in a seat frame, without setting a shape with every vehicle like an airbag.SOLUTION: When a vehicle collides, protective members stored in a holding arm installed in a seat frame and holding a shoulder part and a belly part of an occupant are downwardly deployed by rolling-in of tension belts, so that a part over a chest part and the belly part from the shoulder part of the occupant can be protected while covering it, the movement to the side of the occupant can be regulated, and safety of the occupant can be secured.

Description

  The present invention includes a holding arm capable of restraining an upper body from above from a shoulder portion to a chest and an abdomen of an occupant seated on a seat attached to a seat frame, and a protective member housed in the holding arm. The present invention relates to an occupant protection device.

Conventionally, as an occupant protection device, for example, as an occupant protection device for an automobile, an airbag (see, for example, Patent Document 1) attached to a steering wheel or an instrument panel of an automobile and an airbag (for example, stored in a seat belt) And Patent Document 2). In addition, there is a shoulder air bag as a shoulder restraining member and a side restraining member provided from a support stay attached to each side portion of a headrest attached to a seat of an automobile (for example, see Patent Document 3). ).
JP 2010-173505 A JP 2001-122064 A JP 2005-088675 A

  However, in the case of an airbag attached to a vehicle, there is a problem that the airbag cannot be deployed so as to safely protect the occupant unless the shape of the airbag is set for each vehicle. In addition, the airbag attached to the seat belt and the arm attached to the seat frame were designed to protect the chest and waist, but the impact to the side of the human body such as the shoulder and arm was also considered. However, there is a problem that it is difficult to safely protect the occupant when receiving an impact from the side.

  The present invention solves the above-described problems, and provides an occupant protection device capable of preventing the occupant sitting on the seat from moving laterally and preventing the occupant from jumping forward even when an abnormality occurs. To do.

In order to solve the above problems, the present invention of claim 1 is a holding arm capable of restraining the upper body from above from the shoulder to the chest and abdomen of an occupant seated on the seat and attached to the seat frame, In the occupant protection device comprising a protection member housed in a seat belt and a tension belt in which one end housed in the seat frame is attached to the protection member and the other end is attached to a winding device in the seat frame. Is an occupant protection device that extends downward so as to cover the side surface of the upper body of the occupant when the tension belt is taken up by driving the take-up device.

  In the first aspect of the invention, the protective member can be expanded downward so as to cover the upper body of the occupant by winding the tension belt housed in the seat frame. The device can restrict the occupant sitting on the seat from jumping forward and moving laterally, thereby ensuring the safety of the occupant.

  According to a second aspect of the present invention, the holding arm holds the left and right shoulders of the occupant from above, and extends downward from the tip of each shoulder holding arm to hold the occupant's chest from the front. 2. A chest holding arm, an abdominal holding arm that extends from the front of the chest holding arm and holds the abdomen from the front, and a connection holding arm that connects the left and right abdominal holding arms. The occupant protection device described.

  In the invention according to claim 2, the holding arm holds the shoulder portion of the occupant from above, the chest holding arm that holds the chest from above and from the front, and the abdomen holding arm that holds the abdomen from the front. Since it is comprised, a passenger | crew can be hold | maintained reliably.

  The present invention of claim 3 is characterized in that the protective member is expanded and inflated in a bag shape by an inflator attached to a seat frame to hold the front and side surfaces of the occupant's shoulder.

  In the invention according to claim 3, since the inflator is installed inside the seat frame, the protective member is expanded into a bag shape and inflated by the inflator at the time of a vehicle collision or the like. The impact can be absorbed, the occupant's forward jumping and lateral movement can be more reliably regulated, and the occupant's safety can be ensured.

  By expanding the protective member housed in the holding arm downward by the tension belt being involved, it is possible to protect the cover from the shoulder of the occupant to the chest and abdomen, thereby restricting movement of the occupant to the side. Can ensure the safety of passengers. Moreover, since the occupant can be protected from an impact at the time of a vehicle collision by deploying and expanding the protective member using the inflator, the occupant can be more reliably protected.

It is a figure before protection member expansion | deployment of the passenger | crew protection apparatus which is embodiment of this invention. It is a figure after protection member deployment of a crew member protection device of an embodiment. It is a back perspective view after protection member deployment of a crew member protection device of an embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In the present specification, unless otherwise specified, the front-rear and top-bottom directions are made to coincide with the direction when the occupant is seated on the seat. 1, 2 and 3 show an embodiment of an occupant protection device according to the present invention. FIG. 1 shows an occupant seated on a seat and an occupant protection device before deployment, and FIG. 2 shows an occupant seated on the seat and deployment. FIG. 3 is a rear occupant protection device as seen from a perspective from the rear of the occupant of the occupant protection device after deployment.

  Hereinafter, an embodiment of an occupant protection device according to the present invention will be described with reference to FIGS. An occupant protection device 1 according to the present invention restrains an upper body from above from a seat frame 3 of a seat on which an occupant 2 is seated, and from a shoulder portion to a chest and an abdomen of the occupant 2 seated on the seat attached to the seat frame 3 Holding arm 4, protective member 5 housed in the holding arm 4, and protective member 5 housed in the seat frame 2 and housed in the holding arm 4. It is comprised from the tension belt 6 to be made.

  As shown in FIG. 1, the holding arm 4 extends from the upper left and right sides of the seat frame 3 to the front of the left and right shoulders of the occupant, and extends downward from the front ends of the shoulder holding arms. A chest holding arm 42 that holds the chest of the occupant from above and from the front, an abdominal holding arm 43 that extends from the tip of the chest holding arm and holds the abdomen from the front, and a connection holding arm 44 that connects the left and right abdominal holding arms 43. It consists of.

  A connecting portion 44 between the seat frame 3 and the shoulder holding arm 41 holding the left and right shoulders of the occupant is configured to rotate about the connecting portion 44. Therefore, the holding arm 4 is arranged at a position that avoids contact with the head and shoulders of the occupant 2 when the occupant 2 is seated on the seat, so that the occupant does not interfere with the sitting.

  In the holding arm 4, a left protection member 51 is accommodated in the left shoulder holding arm and the left abdomen holding arm, and a right protection member 52 is accommodated in the right shoulder holding and the right abdomen holding arm. Each protection member is housed in a folded state inside each holding arm.

  As shown in FIG. 3, the protection member 5 is connected to a tension belt 6 provided inside the seat frame 2, and when the tension belt is operated, the protection member is moved into the holding arm as shown in FIGS. It is pulled out from the abdomen holding arm 42 and deployed to the lower side of the abdomen holding arm 42 to protect the occupant's shoulder, chest and abdomen from the side. Furthermore, an inflator installed in a seat frame (not shown) can be used to inflate the protective member after the protective member is deployed or during the deployment, thereby further restraining the occupant with the protective member. In that case, it is desirable that the protective member is formed into a bag shape so as to expand with the gas of the inflator.

  Next, the operation of the occupant protection device in the present embodiment will be described.

  In the occupant protection device 1 configured as described above, the holding arm 4 provided on the seat frame 3 extends from the seat frame 3 to the abdomen from the front of each shoulder portion of the occupant 2, and a protective member is provided inside the holding arm. Is stored.

  Here, at the time of normal use when the occupant is seated, the holding arm can be mounted simply by moving up and down with one hand, so that it can be mounted more easily than a conventional seat belt. Further, since the holding arm 4 is disposed at a position where contact between the head of the occupant 2 and each shoulder and the abdomen can be avoided, the occupant 2 can be prevented from receiving discomfort by the holding arm.

  Furthermore, since the connecting portion between the seat frame and the holding arm is movable up and down and left and right to some extent, the occupant feels almost no pressure from the holding arm, so that the occupant feels uncomfortable by the holding arm. Can be prevented.

  Further, when the vehicle collides, the protective member housed in the holding arm is pulled by the winding of the tension belt, and deployed while being pulled out below the abdomen holding arm, so that the occupant is restrained by the protective member, and the occupant's Jumping forward and lateral movement can be restricted, and passenger safety can be ensured.

  Further, in the above-described embodiment, the holding arm is mounted by being lowered by the occupant's hand after the occupant gets into the vehicle, but the holding arm can be deployed from the connected holding arm portion toward the left and right sides of the seat frame. It is good.

  In that case, the occupant can hold the chest and the abdomen from the shoulder of the occupant by connecting the holding arms that are separated to the left and right after sitting on the seat at the connection holding arm portion.

1: occupant protection device 2: occupant 3: seat frame 4: holding arm 41: shoulder holding arm 42: chest holding arm 43: abdominal holding arm 44: connection holding arm 45: connection part 5: protection member 51: left side protection member 52: Right side protection member 6: Tension belt

Claims (3)

A holding arm capable of restraining the upper body from the upper side from the shoulder to the chest and abdomen of an occupant seated on the seat attached to the seat frame, and a protective member housed in the holding arm and housed in the seat frame An occupant protection device comprising a tension belt having one end attached to a protective member and the other end attached to a take-up device in a seat frame, wherein the tension belt is taken up by driving the take-up device. An occupant protection device that extends downward to cover the side of the upper body of the occupant   The holding arm includes a shoulder holding arm that holds the left and right shoulders of the occupant from above, a chest holding arm that extends downward from the tip of each shoulder holding arm to hold the occupant's chest from the front, and a chest holding The occupant protection device according to claim 1, comprising: an abdomen holding arm that extends from the tip of the arm and holds the abdomen from the front; and a connection holding arm that connects the left and right abdomen holding arms.   The inflator is incorporated in the seat frame, and the protective member is expanded and inflated in a bag shape by the inflator to hold the front and side surfaces of the occupant's shoulder. Occupant protection device

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