JP2013112177A - Vehicular knee bolster - Google Patents

Vehicular knee bolster Download PDF

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Publication number
JP2013112177A
JP2013112177A JP2011260451A JP2011260451A JP2013112177A JP 2013112177 A JP2013112177 A JP 2013112177A JP 2011260451 A JP2011260451 A JP 2011260451A JP 2011260451 A JP2011260451 A JP 2011260451A JP 2013112177 A JP2013112177 A JP 2013112177A
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Japan
Prior art keywords
knee bolster
knee
pad
panel
cover
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JP2011260451A
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Japanese (ja)
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JP5720948B2 (en
Inventor
Yoshinori Shinji
由則 榛地
Yusuke Takada
雄介 高田
Original Assignee
Toyota Motor East Japan Inc
トヨタ自動車東日本株式会社
Toyota Motor Corp
トヨタ自動車株式会社
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Application filed by Toyota Motor East Japan Inc, トヨタ自動車東日本株式会社, Toyota Motor Corp, トヨタ自動車株式会社 filed Critical Toyota Motor East Japan Inc
Priority to JP2011260451A priority Critical patent/JP5720948B2/en
Publication of JP2013112177A publication Critical patent/JP2013112177A/en
Application granted granted Critical
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Abstract

PROBLEM TO BE SOLVED: To provide a vehicular knee bolster which is not restricted by the structure and appearance of parts around a mounting position and can absorb energy applied by an external force.SOLUTION: The vehicular knee bolster is constituted so that a knee bolster cover 12 is fitted to the front end 11a of a knee bolster pad 11 and that the trunk 11g of the knee bolster pad 11 is left exposed. An instrument panel 15 is formed by anchoring a lower panel 15c to the lower end of a panel body 15b. When the knee bolster cover 12 is fitted to the knee bolster pad, a recessed receiving part is formed at the knee bolster pad 11 and the knee bolster cover 12. An anchoring part 15a between the panel body 15b and the lower panel 15c is support by the receiving part.

Description

  The present invention relates to a vehicle knee bolster provided to face a seated person's knee inside an instrument panel of the vehicle.
  Various shock absorbing structures are attached to the vehicle in order to protect the occupant in the event of a sudden change in acceleration of the vehicle or a collision. As a protection for passengers in a side collision, Patent Document 1 discloses a shock absorber for a vehicle that aims to prevent the shock absorber from falling off in a normal state while weakening the fixing member in the case of a side collision. An attachment structure is disclosed. Patent Document 2 discloses a vehicle collision absorbing structure in which a pad is disposed on a pad disposed to face a side impact beam so that the pad is not locally crushed by a side collision.
  In addition, a block-like knee bolster that catches the occupant's knee when the occupant's knee collides with the lower part of the instrument panel during a sudden deceleration of the vehicle or a frontal collision is used.
  The knee bolster is disposed so as to face the seated person's knee inside the instrument panel. FIG. 3 schematically shows a conventional knee bolster, in which (a) shows a state before the collision, and (b) shows a state after the collision. As shown in FIG. 3A, a support member 51 is provided inside the instrument panel 52 so as to extend in the vehicle width direction, and a knee bolster 53 is attached to the support member 51 with a bracket 54 interposed. .
  When the seated person's knee moves to the instrument panel 52 side due to the frontal collision, the instrument panel 52 is distorted and the lower panel 52a comes into contact with the knee bolster 53 as shown in FIG. Force is applied and the tip of the knee bolster 53 is crushed and deformed. In this way, sudden impact energy from the knee N is absorbed by the tip of the knee bolster 53 due to the collision, and the waist of the seated person is prevented from moving forward.
  Here, the knee bolster 53 is produced by molding a hard foam material, and the knee bolster 53 is stably crushed by absorbing the impact, so that these parts are attached so as not to interfere with the parts around the knee bolster 53. Position, shape, etc. must be set.
  Therefore, for example, in the instrument panel 52, the lower panel 52a is attached to the lower end of the panel body 52b, and the fastening portion 52c between the panel body 52b and the lower panel 52a is set at a position higher than the knee bolster 53. .
  With regard to such a knee bolster, in Patent Document 3, a knee-shaped bolster is bonded to a side peripheral surface of a knee bolster that is a starting point at which the urethane material is crushed when the knee bolster is compressed and deformed. It discloses the prevention of bolster breakage.
JP 2010-280319 A JP 2011-121485 A JP 2007-176268 A
  However, as shown in FIG. 3, in order for the knee bolster 53 to be stably crushed, the fastening portion 52 c between the panel body 52 b and the lower panel 52 a in the instrument panel 52 must be positioned higher than the knee bolster 53. I must. Then, the fastening state between the lower panel 52a and the panel body 52b is weakened. Moreover, since it is necessary to change a parting time, there exists a problem that an appearance worsens.
  Therefore, an object of the present invention is to provide a vehicle knee bolster that can sufficiently absorb energy applied by an external force without restricting the structure and appearance of parts around the mounting position of the knee bolster.
  In order to achieve the above object, according to the present invention, a knee bolster cover is mounted on a tip portion of a knee bolster pad in a vehicle knee bolster provided to face an occupant's knee inside a vehicle instrument panel. The body part other than the tip part of the knee bolster pad is not covered with the knee bolster cover and is exposed.
  In the above configuration, the instrument panel is formed by fastening the lower panel to the lower end of the panel body, and the knee bolster cover and the receiving portion recessed in the knee bolster cover in a state where the knee bolster cover is attached to the tip of the knee bolster pad. Is provided, and the receiving portion supports a fastening portion between the panel body and the lower panel.
  According to the present invention, since the knee bolster cover is attached to the tip of the knee bolster pad, it is difficult to be broken or crushed by the parts around the knee bolster pad mounting position, and the impact energy is transferred to the tip of the knee bolster pad. When the impact is applied to the body part, the body part is crushed and the impact energy can be absorbed efficiently. As a result, there are less restrictions on the structure and appearance of parts around the mounting position of the knee bolster.
1 shows a knee bolster of a vehicle according to an embodiment of the present invention, where (a) shows a state before a collision and (b) shows a state after a collision. It is a schematic exploded view of the knee bolster of the vehicle shown in FIG. A conventional knee bolster is schematically shown, in which (a) shows a state before a collision, and (b) shows a state after a collision.
  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A and 1B show a knee bolster of a vehicle according to an embodiment of the present invention. FIG. 1A shows a state before a collision, and FIG. 1B shows a state after a collision. FIG. 2 is a schematic exploded view of the knee bolster of the vehicle shown in FIG.
  As shown in FIG. 2, a knee bolster 10 for a vehicle according to an embodiment of the present invention has a knee bolster cover 12 attached to a tip portion 11 a of a knee bolster pad 11.
  As shown in FIG. 1, the knee bolster 10 is disposed so as to be paired on the inner side of the instrument panel 15 so as to face the knee of the seated person. FIG. 1 shows only one of the left and right pairs. The knee bolster pad 11 has a size necessary to absorb impact energy received from the knee of the seated person, and is formed into a block shape with a cushion material such as a urethane material.
  As shown in FIG. 1, the knee bolster pad 11 is attached to an attachment bracket 13 that is obliquely attached so as to face the knee N of the seated person, and faces the knee N from the contact surface 11 b with the attachment bracket 13. The tip 11a is provided. As shown in FIG. 2, the knee bolster pad 11 bulges out from the bottom surface serving as the contact surface 11b so that a cross section perpendicular to the vehicle width direction has a substantially trapezoidal shape, and both side surfaces 11c and 11d in the vehicle width direction are left and right. The front end portion 11a is narrowed in the vehicle width direction so as to be inclined obliquely so as to face the direction.
  The tip end portion 11a of the knee bolster pad 11 includes a receiving portion 11e that is recessed on the surface facing the instrument panel. The recessed receiving portion 11e supports the fastening portion 15a between the panel main body 15b and the lower panel 15c in a state where the knee bolster cover 12 is attached to the distal end portion 11a of the knee bolster pad 11. The recessed receiving portion 11e is formed on the left side in the drawing at the tip portion 11a of the knee bolster pad 11, and a concave surface portion 11f is formed on the right side. The concave surface portion 11f is for avoiding interference with each component housed inside the instrument panel. When the present invention is applied, the dent receiving portion 11e and the concave surface portion 11f may be provided opposite to each other, unlike the illustrated case.
  The knee bolster cover 12 is attached to the tip 11 a of the knee bolster pad 11. The knee bolster cover 12 has an inner peripheral surface along the tip portion 11a of the knee bolster pad 11, and the knee bolster cover 12 is recessed so as to correspond to the recessed receiving portion 11e and the recessed surface portion 11f. 12e and a concave surface portion 12f, and the end of the opening edge portion 12a is open to the outside. The knee bolster cover 12 is formed of a resin such as polypropylene or polyethylene that is less deformable than the knee bolster pad 11.
  As shown in FIG. 1 (a), a support member 16 is provided in the instrument panel 15 so as to extend in the vehicle width direction, and the mounting bracket 13 is provided obliquely upward so as to face the knee N of the seated person. The knee bolster pad 11 is provided so as to bulge from the mounting bracket 13 toward the knee N. A knee bolster cover 12 is attached to the tip 11 a of the knee bolster pad 11. At that time, the recessed receiving portion 11e at the distal end portion 11a of the knee bolster pad 11 is covered with the receiving portion 12e of the knee bolster cover 12, and the concave surface portion 11f at the distal end portion 11a is covered with the concave surface portion 12f of the knee bolster cover 12. Yes. In the mounted state, the body part 11 g other than the tip part 11 a of the knee bolster pad 11 is exposed without being covered by the knee bolster cover 12. The seat body side of such a knee bolster 10 is fastened with a panel body 15b of the instrument panel 15 and a lower panel 15c provided at the lower end thereof, and the receiving portions 11e and 12e in which the fastening portions 15a are recessed. Is supported by.
  Since the knee bolster cover 12 is formed of a resin such as polypropylene or polyethylene that is relatively difficult to be deformed, the knee bolster cover 12 is hardly crushed even if the fastening portion 15a comes into contact therewith. That is, the knee bolster pad 11 is not easily broken and pulverized even if the mounting claws and protrusions of the parts around the area where the knee bolster 10 is disposed contact the knee bolster 10.
  When the seated person's knee N is moved forward relative to the instrument panel 15 due to a longitudinal collision or sudden stop of the vehicle, the seated person's knee N is moved to the instrument as shown in FIG. The instrument panel 15 collides with the panel 15 and is pressed forward. Then, an impact is applied to the knee bolster 10 via the fastening portion 15a. Since the body part 11g other than the tip part 11a of the knee bolster pad 11 is not covered with the knee bolster cover 11, the body part 11g of the knee bolster pad 11 is crushed in the front-rear direction by the pressure and stroked, and the impact energy is efficiently absorbed. To do. Therefore, it is only necessary to expose the body portion 11g for the stroke.
  When the knee bolster cover 12 is not attached to the tip portion 11a of the knee bolster pad 11, the knee bolster pad 11 is crushed and cannot absorb the impact energy efficiently. However, in the embodiment of the present invention, The impact energy can be efficiently absorbed.
  In the embodiment of the present invention, since the knee bolster cover 12 is attached to the knee bolster pad 11, attachment claws, protrusions, and various parts of various components attached around the knee bolster 10 are separated from the knee bolster pad 11. Interference can prevent the knee bolster pad 11 from being cracked or broken.
  Moreover, the torso part 11g which is the base part of the knee bolster pad 11 is exposed without covering the entire knee bolster pad 11 with the knee bolster cover 12, and the knee N of the seated person is caused by a sudden stop of the vehicle or a collision in the front-rear direction. Even if it collides with the instrument panel 15, the body part 11g of the knee bolster pad 11 is crushed by the collision energy and absorbs the impact energy. Thus, since the part which the knee bolster pad 11 collapses, ie, the stroke, is exposed, impact energy can be absorbed efficiently.
  Further, since the opening edge portion 12a of the knee bolster cover 12 is widened, the knee bolster cover 12 can be easily attached to the knee bolster pad 11, and even if an impact is applied, the knee edge is formed by the edge of the opening edge portion 12a of the knee bolster cover 12. Since the bolster pad 11 is not shaved, the impact energy absorbing function is not weakened.
  It should be noted that the present invention is not limited to the illustrated embodiment, and can be implemented with appropriate modifications without departing from the scope of the present invention.
10: Knee bolster 11: Knee bolster pad 11a: Tip part of knee bolster pad 11b: Contact surface 11c, 11d: Side surface of knee bolster pad 11e: Receiving part of knee bolster pad 11f: Concave part 11g: Body part 12: Knee bolster Cover 12a: Opening edge portion 12e: Receiving portion 12f: Concave portion 13: Mounting bracket 15: Instrument panel 15a: Fastening portion 15b: Panel body 15c: Lower panel 16: Support member N: Seated person's knee

Claims (2)

  1. In the knee bolster of the vehicle provided to face the occupant's knee inside the instrument panel of the vehicle,
    A knee bolster cover is attached to the tip of the knee bolster pad, and the body part other than the tip of the knee bolster pad is not covered with the knee bolster cover and is exposed. Knee bolster.
  2. The instrument panel is formed by fastening a lower panel to the lower end of the panel body,
    With the knee bolster cover attached to the tip of the knee bolster pad, the knee bolster pad and the knee bolster cover are provided with recessed receiving portions,
    The vehicle knee bolster according to claim 1, wherein the receiving portion supports a fastening portion between the panel body and the lower panel.
JP2011260451A 2011-11-29 2011-11-29 Vehicle knee bolster Expired - Fee Related JP5720948B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011260451A JP5720948B2 (en) 2011-11-29 2011-11-29 Vehicle knee bolster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011260451A JP5720948B2 (en) 2011-11-29 2011-11-29 Vehicle knee bolster

Publications (2)

Publication Number Publication Date
JP2013112177A true JP2013112177A (en) 2013-06-10
JP5720948B2 JP5720948B2 (en) 2015-05-20

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JP2011260451A Expired - Fee Related JP5720948B2 (en) 2011-11-29 2011-11-29 Vehicle knee bolster

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000103307A (en) * 1998-09-30 2000-04-11 Daihatsu Motor Co Ltd Knee load reducing device at time of clashing
US20040070188A1 (en) * 2002-10-10 2004-04-15 Chickmenahalli Arun A. Passenger restraint
JP2004224243A (en) * 2003-01-24 2004-08-12 Toyota Motor Corp Occupant protection device for vehicle
US20100295285A1 (en) * 2009-05-21 2010-11-25 Toyota Motor Engineering & Manufacturing North America, Inc. Instrument panel with positive locking capabilities
JP2011121453A (en) * 2009-12-10 2011-06-23 Honda Motor Co Ltd Knee pad structure for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000103307A (en) * 1998-09-30 2000-04-11 Daihatsu Motor Co Ltd Knee load reducing device at time of clashing
US20040070188A1 (en) * 2002-10-10 2004-04-15 Chickmenahalli Arun A. Passenger restraint
JP2004224243A (en) * 2003-01-24 2004-08-12 Toyota Motor Corp Occupant protection device for vehicle
US20100295285A1 (en) * 2009-05-21 2010-11-25 Toyota Motor Engineering & Manufacturing North America, Inc. Instrument panel with positive locking capabilities
JP2011121453A (en) * 2009-12-10 2011-06-23 Honda Motor Co Ltd Knee pad structure for vehicle

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Publication number Publication date
JP5720948B2 (en) 2015-05-20

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