JP2013116700A5

JP2013116700A5 -

Info

Publication number: JP2013116700A5
Application number: JP2011265843A
Authority: JP
Filing date: 2011-12-05
Publication date: 2015-01-22
Anticipated expiration: 2031-12-05

Description

又、請求項２に記載した製造方法は、請求項１に記載したステアリング装置の製造方法であって、１枚の板状の素材から成る中間ブラケット素材を形成する工程を有する。
この中間ブラケット素材は、１対の中間取付板部と、１対の中間支持板部と、中間連続部とを備える。
このうちの両中間取付板部は、幅方向に関して互いに離隔した状態で設けられている。
又、前記両中間支持板部は、それぞれの幅方向に関する一端が前記両中間取付板部の幅方向内端縁に連続している。一方、これら両中間支持板部の幅方向に関する他端は、他の部分と結合されていない自由端である。
又、前記中間連続部は、前記両中間取付板部同士の間に掛け渡す状態で、その幅方向両端縁を、これら両中間取付板部の幅方向内端縁のうちの前記両中間支持板部が配置された以外の部分に連続している。
又、前記中間ブラケット素材を形成した後、前記両中間支持板部を、前記両中間取付板部の幅方向内端縁からそれぞれが下方に垂れ下がった状態に塑性変形させると共に、前記中間連続部を、この中間連続部の幅方向に関する寸法が小さくなる様に塑性変形させる事により、支持ブラケットを形成する。
そして、前記両中間取付板部のそれぞれの幅方向に関する寸法をａとし、前記両中間支持板部のそれぞれの幅方向に関する寸法をｂとし、前記中間ブラケット素材の幅方向に関する寸法をＣとし、前記支持ブラケットの幅方向に関する寸法をＤとした場合に、２（ａ＋ｂ）＞Ｄ、且つ、Ｃ＞Ｄの関係を満たす様にする。 According to a second aspect of the present invention, there is provided a method for manufacturing a steering apparatus according to the first aspect, comprising the step of forming an intermediate bracket material made of a single plate-shaped material.
The intermediate bracket material includes a pair of intermediate mounting plate portions, a pair of intermediate support plate portions, and an intermediate continuous portion.
Of these, both intermediate mounting plate portions are provided in a state of being separated from each other in the width direction.
In addition, one end of each of the intermediate support plate portions in the width direction is continuous with the inner edge of the intermediate mounting plate portion in the width direction. On the other hand, the other end in the width direction of both the intermediate support plate portions is a free end that is not coupled to other portions.
Further, the intermediate continuous portion is in a state of being hung between the intermediate mounting plate portions, and both end edges in the width direction of the intermediate supporting plate portions of the intermediate mounting plate portions in the width direction inner end edges. The part is continuous to the part other than the place.
In addition, after forming the intermediate bracket material, both the intermediate support plate portions are plastically deformed in a state where each of the intermediate support plate portions hangs downward from the inner edge in the width direction of the both intermediate mounting plate portions, and the intermediate continuous portion is The support bracket is formed by plastic deformation so that the dimension in the width direction of the intermediate continuous portion becomes small.
And, the dimension in the width direction of each of the intermediate mounting plate parts is a, the dimension in the width direction of each of the intermediate support plate parts is b, the dimension in the width direction of the intermediate bracket material is C, When the dimension in the width direction of the support bracket is D, 2 (a + b)> D and C> D are satisfied.

Claims

請求項１に記載したステアリング装置を造る為のステアリング装置の製造方法であって、１枚の板状の素材から成る中間ブラケット素材を形成する工程を有し、
前記中間ブラケット素材は、１対の中間取付板部と、１対の中間支持板部と、中間連続部とを備え、
このうちの両中間取付板部は、幅方向に関して互いに離隔した状態で設けられており、
前記両中間支持板部は、それぞれの幅方向に関する一端を前記両中間取付板部の幅方向内端縁に連続すると共に、幅方向に関する他端を自由端としており、
前記中間連続部は、前記両中間取付板部同士の間に掛け渡す状態で、その幅方向両端縁を、これら両中間取付板部の幅方向内端縁のうちの前記両中間支持板部が配置された以外の部分に連続しており、
前記中間ブラケット素材を形成した後、前記両中間支持板部を、前記両中間取付板部の幅方向内端縁からそれぞれが下方に垂れ下がった状態に塑性変形させると共に、前記中間連続部を、この中間連続部の幅方向に関する寸法が小さくなる様に塑性変形させる事により支持ブラケットを形成すべく、
前記両中間取付板部のそれぞれの幅方向に関する寸法をａとし、
前記両中間支持板部のそれぞれの幅方向に関する寸法をｂとし、
前記中間ブラケット素材の幅方向に関する寸法をＣとし、
前記支持ブラケットの幅方向に関する寸法Ｄとした場合に、
２（ａ＋ｂ）＞Ｄ、且つ、Ｃ＞Ｄの関係を満たす、前記中間ブラケット素子を使用する事を特徴とするステアリング装置の製造方法。 A method of manufacturing a steering device for producing a steering device according to claim 1, comprising a step of forming an intermediate bracket material made of a single plate-shaped material ,
The intermediate bracket material includes a pair of intermediate mounting plate portions, a pair of intermediate support plate portions, and an intermediate continuous portion,
Both of these intermediate mounting plate portions are provided in a state of being separated from each other in the width direction,
The both intermediate support plate portions are connected to the width direction inner end edges of the intermediate mounting plate portions at one end with respect to the respective width directions, and have the other end with respect to the width direction as a free end,
The intermediate continuous portion is in a state of being hung between the intermediate mounting plate portions, and both end edges in the width direction are the intermediate support plate portions of the inner end edges in the width direction of the intermediate mounting plate portions. It is continuous to the part other than the place,
After forming the intermediate bracket material, both the intermediate support plate portions are plastically deformed in a state where each of the intermediate support plate portions hangs downward from the widthwise inner end edges of the both intermediate mounting plate portions, and the intermediate continuous portion is In order to form a support bracket by plastic deformation so that the dimension in the width direction of the intermediate continuous part becomes small,
The dimension in the width direction of each of the intermediate mounting plate portions is a,
The dimension in the width direction of each of the intermediate support plate portions is b,
The dimension in the width direction of the intermediate bracket material is C,
When the dimension D in the width direction of the support bracket,
A method for manufacturing a steering device, wherein the intermediate bracket element satisfying a relationship of 2 (a + b)> D and C> D is used.

前記中間連続部のうちの、前記塑性変形の起点とする部分に、切り欠きを設けている、請求項２〜６のうちの何れか１項に記載したステアリング装置の製造方法。 The method for manufacturing a steering device according to any one of claims 2 to 6, wherein a notch is provided in a portion of the intermediate continuous portion that is a starting point of the plastic deformation.