JP2023019570A5 - - Google Patents

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JP2023019570A5
JP2023019570A5 JP2021124391A JP2021124391A JP2023019570A5 JP 2023019570 A5 JP2023019570 A5 JP 2023019570A5 JP 2021124391 A JP2021124391 A JP 2021124391A JP 2021124391 A JP2021124391 A JP 2021124391A JP 2023019570 A5 JP2023019570 A5 JP 2023019570A5
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Japan
Prior art keywords
radial direction
inner column
folded
column
wire
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Pending
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JP2021124391A
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Japanese (ja)
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JP2023019570A (en
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Priority to JP2021124391A priority Critical patent/JP2023019570A/en
Priority claimed from JP2021124391A external-priority patent/JP2023019570A/en
Publication of JP2023019570A publication Critical patent/JP2023019570A/en
Publication of JP2023019570A5 publication Critical patent/JP2023019570A5/ja
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本発明の一態様では、前記衝撃吸収ワイヤが、前記インナコラムの径方向に対して直交する方向に前記線材をU字形に折り返してなる折り返し部を有し、該折り返し部の内周側に前記インナ掛け部または前記アウタ掛け部が配置され、二次衝突時に前記衝撃吸収ワイヤが、前記折り返し部を前記インナ掛け部または前記アウタ掛け部によって扱かれるように塑性変形する。 In one aspect of the present invention, the impact absorbing wire has a folded portion formed by folding the wire into a U-shape in a direction perpendicular to the radial direction of the inner column, and the inner hanging portion or the outer hanging portion is arranged on the inner side of the folded portion, and during a secondary collision, the impact absorbing wire plastically deforms so that the folded portion is handled by the inner hanging portion or the outer hanging portion .

本例では、インナブラケット3は、インナ基板部41の他方側(図4の上側)の側面をインナコラム14の前側部の下面に当接させた状態で、インナコラム14に結合固定されている。このために、具体的には、インナ基板部41の前後方向に離隔した複数箇所(図示の例では前後方向中間部と後側端部との2箇所)において、インナ基板部41とインナコラム14とを径方向に貫通したリベット47を用いて、インナブラケット3をインナコラム14に結合固定している。リベット47のそれぞれは、高強度の金属により造られており、二次衝突時に加わる衝撃荷重によっても裂断しない。このため、インナブラケット3は、二次衝突の発生後も、インナコラム14に結合固定された状態を維持する。なお、本発明を実施する場合には、溶接などの他の結合方法によって、インナブラケットをインナコラムに結合固定することもできる。 In this example, the inner bracket 3 is joined and fixed to the inner column 14 in a state where the side surface on the other side (upper side in FIG. 4 ) of the inner base plate portion 41 is in contact with the underside of the front part of the inner column 14. To this end, specifically, the inner bracket 3 is joined and fixed to the inner column 14 using rivets 47 that penetrate the inner base plate portion 41 and the inner column 14 in the radial direction at a plurality of locations (two locations at the middle part in the front-rear direction and the rear end part in the illustrated example) spaced apart in the front-rear direction of the inner base plate portion 41. Each of the rivets 47 is made of a high-strength metal and will not break even under the impact load applied during a secondary collision. Therefore, the inner bracket 3 maintains a state of being joined and fixed to the inner column 14 even after the occurrence of a secondary collision. When implementing the present invention, the inner bracket can also be joined and fixed to the inner column by other joining methods such as welding.

具体的には、衝撃吸収ワイヤ6は、基部61と、2つの衝撃吸収部62a、62bとを有する。基部61は、インナコラム14の径方向から見て、前側が凸となる半円形状を有する。衝撃吸収部62a、62bは、基部61の両側の端部に1つずつ接続されており、それぞれがインナコラム14の径方向から見てU字形状を有し、この径方向に互いに重畳して配置されている。すなわち、2つの衝撃吸収部62a、62bは、基部61の両側の端部から後方に向けて伸長する第1直線部63a、63bと、第1直線部63a、63bの後側端部から、インナコラム14の径方向(図4、図6、図7の上下方向)に対して直交する方向である幅方向に関して互いに近づき合う方向、かつ、前方に向けてU字形に折り返された折り返し部64a、64bと、折り返し部64a、64bの先端部から前方に向けて伸長する第2直線部65a、65bとを有する。また、一方の衝撃吸収部62aは、他方の衝撃吸収部62bに対して、インナコラム14の径方向に関して内側(図4、図6、図7の上側)に重畳して配置されいる。 Specifically, the shock absorbing wire 6 has a base 61 and two shock absorbing portions 62a, 62b. The base 61 has a semicircular shape with a convex front side when viewed from the radial direction of the inner column 14. The shock absorbing portions 62a, 62b are connected to the ends on both sides of the base 61, respectively, and each has a U-shape when viewed from the radial direction of the inner column 14, and are arranged overlapping each other in this radial direction. That is, the two shock absorbing portions 62a, 62b have first straight portions 63a, 63b extending rearward from both end portions of the base portion 61, folded back portions 64a, 64b folded back in a U-shape forward from the rear end portions of the first straight portions 63a, 63b in directions approaching each other in the width direction that is a direction perpendicular to the radial direction of the inner column 14 (the up-down direction in FIGS. 4, 6, and 7), and second straight portions 65a, 65b extending forward from the tips of the folded back portions 64a, 64b. Moreover, one shock absorbing portion 62a is arranged to overlap the other shock absorbing portion 62b on the inside (the upper side in FIGS. 4, 6, and 7) in the radial direction of the inner column 14.

本例では、この状態で、衝撃吸収ワイヤ6が、インナブラケット3とアウタブラケット4との間で、インナコラム14の径方向に弾性的に圧縮されている。具体的には、図7に示すように、一方の衝撃吸収部62aの第2直線部65aの前側端部が、インナブラケット3の前板部43の基半部44の下端部(α部)に弾性的に当接し、かつ、他方の衝撃吸収部62bの第2直線部65bの前側端部が、アウタブラケット4のアウタ基板部49の上面の側端部(β部)に弾性的に当接している。 In this example, in this state, the shock absorbing wire 6 is elastically compressed in the radial direction of the inner column 14 between the inner bracket 3 and the outer bracket 4. Specifically, as shown in Fig. 7, the front end of the second straight portion 65a of one shock absorbing portion 62a elastically abuts against the lower end (α portion) of the base half portion 44 of the front plate portion 43 of the inner bracket 3, and the front end of the second straight portion 65b of the other shock absorbing portion 62b elastically abuts against the front end (β portion) of the upper surface of the outer base plate portion 49 of the outer bracket 4.

Claims (2)

前記衝撃吸収ワイヤが、前記インナコラムの径方向に対して直交する方向に前記線材をU字形に折り返してなる折り返し部を有し、該折り返し部の内周側に前記インナ掛け部または前記アウタ掛け部が配置され、二次衝突時に前記衝撃吸収ワイヤが、前記折り返し部を前記インナ掛け部または前記アウタ掛け部によって扱かれるように塑性変形する、請求項1に記載のステアリングコラム装置。 2. The steering column device according to claim 1, wherein the impact absorbing wire has a folded portion formed by folding the wire in a U-shape in a direction perpendicular to a radial direction of the inner column, the inner hanging portion or the outer hanging portion is arranged on the inner side of the folded portion, and during a secondary collision, the impact absorbing wire plastically deforms so that the folded portion is handled by the inner hanging portion or the outer hanging portion . 前記第1係合部が、前記インナコラムの径方向に関する前記アウタブラケットの外側面に前記インナコラムの軸方向にわたり備えられた第1ギヤ部により構成されており、
前記第2係合部が、前記ロック部材のうち、前記第1ギヤ部に対向する部分に備えられた第2ギヤ部により構成されている、
請求項1~5のいずれかに記載のステアリングコラム装置。
the first engagement portion is constituted by a first gear portion provided on an outer surface of the outer bracket in a radial direction of the inner column, the first gear portion being provided along an axial direction of the inner column,
The second engagement portion is constituted by a second gear portion provided in a portion of the locking member facing the first gear portion.
A steering column device according to any one of claims 1 to 5.
JP2021124391A 2021-07-29 2021-07-29 steering column device Pending JP2023019570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021124391A JP2023019570A (en) 2021-07-29 2021-07-29 steering column device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021124391A JP2023019570A (en) 2021-07-29 2021-07-29 steering column device

Publications (2)

Publication Number Publication Date
JP2023019570A JP2023019570A (en) 2023-02-09
JP2023019570A5 true JP2023019570A5 (en) 2024-05-30

Family

ID=85159133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021124391A Pending JP2023019570A (en) 2021-07-29 2021-07-29 steering column device

Country Status (1)

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JP (1) JP2023019570A (en)

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