JP6875632B2

JP6875632B2 - Structure and manufacturing method of structure

Info

Publication number: JP6875632B2
Application number: JP2016256436A
Authority: JP
Inventors: 松原　礼宗; 礼宗松原; 達也河合
Original assignee: Kyoraku Co Ltd
Current assignee: Kyoraku Co Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2021-05-26
Anticipated expiration: 2036-12-28
Also published as: JP2018108590A

Description

本発明は、構造体及び構造体の製造方法に関する。 The present invention relates to a structure and a method for manufacturing the structure.

特許文献１には、金属カラーを樹脂製のブラケットのネジ挿通孔に圧入した上で、金属カラーの一部をプレスして、金属カラーの周縁に複数の爪部を設けることにより、金属カラーがブラケットから抜けにくくした構造体が開示されている。 In Patent Document 1, a metal collar is press-fitted into a screw insertion hole of a resin bracket, and then a part of the metal collar is pressed to provide a plurality of claws on the periphery of the metal collar to obtain a metal collar. A structure that is difficult to remove from the bracket is disclosed.

特開２００８−３０４０２３号公報Japanese Unexamined Patent Publication No. 2008-304023

特許文献１に記載される構造体は、カラーの一部に爪部に相当する部位を設ける必要があり、そのための加工に工数がかかる。 In the structure described in Patent Document 1, it is necessary to provide a portion corresponding to the claw portion in a part of the collar, and the processing for that purpose requires man-hours.

本発明は、シンプルな形状のカラーを基体に装着可能な、構造体の製造方法を提供するものである。 The present invention provides a method for manufacturing a structure capable of mounting a collar having a simple shape on a substrate.

本発明によれば、基体に設けられる開口部内においてカラーの両面側を前記基体の両面側のそれぞれから塑性変形させて前記基体に固定する固定工程を備える、構造体の製造方法が提供される。 According to the present invention, there is provided a method for manufacturing a structure, comprising a fixing step of plastically deforming both side surfaces of a collar from both side surfaces of the substrate and fixing the collar to the substrate in an opening provided in the substrate.

本発明に係る構造体の製造方法は、基体に設けられる開口部内において、カラーの両面側を基体の両面側のそれぞれから塑性変形させて基体に固定する固定工程を備える。このように、カラーの両面側を塑性変形させることで、特別な加工を要することなく、シンプルな形状のカラーを利用することが可能となる。 The method for manufacturing a structure according to the present invention includes a fixing step of plastically deforming both side surfaces of a collar from both side surfaces of the substrate and fixing the structure to the substrate in an opening provided in the substrate. By plastically deforming both sides of the collar in this way, it is possible to use a collar having a simple shape without requiring special processing.

以下、本発明の種々の実施形態を例示する。以下に示す実施形態は互いに組み合わせ可能である。
好ましくは、前記塑性変形は、前記カラーの径方向に突出する突出部が形成されるように行われ、前記突出部が前記基体の両面側に食い込むように形成される。
好ましくは、前記カラーの両面側に形成される前記突出部は、互いに対向するように形成される。
好ましくは、前記カラーの前記突出部以外の部分の厚さが、前記開口部に隣接した位置での前記基体の厚さより大きくなるように構成される。
好ましくは、前記基体は樹脂成形体である。
好ましくは、前記カラーの塑性変形は、第１及び第２押圧部材によって前記カラーをその両面側から押圧することによって行われ、第１押圧部材は、前記カラーに当接する第１当接部を備え、第２押圧部材は、前記カラーに当接する第２当接部を備える。
好ましくは、第１及び第２当接部は、それぞれ、前記カラーの周方向の一部において前記カラーに当接するように設けられた突起を備える。
好ましくは、前記突起は、周方向の複数箇所に設けられる。
好ましくは、第１及び第２当接部は、前記カラーの径方向の外側の一部に当接するように設けられる。
好ましくは、第１押圧部材は、前記カラーを支持する支持凸部を備え、第２押圧部材は、前記支持凸部を収容可能な凹部を備える。
好ましくは、第１当接部は、前記支持凸部の周囲に配置され、第２当接部は、前記凹部の周囲に配置される。
好ましくは、開口部を有する基体と、前記基体に固定されたカラーと、を備え、前記カラーは、前記開口部内において前記カラーの両面側を前記基体の両面側のそれぞれから塑性変形させて前記基体に固定されている、構造体が提供される。 Hereinafter, various embodiments of the present invention will be illustrated. The embodiments shown below can be combined with each other.
Preferably, the plastic deformation is performed so that a protrusion protruding in the radial direction of the collar is formed, and the protrusion is formed so as to bite into both side surfaces of the substrate.
Preferably, the protrusions formed on both sides of the collar are formed so as to face each other.
Preferably, the thickness of the portion of the collar other than the protruding portion is configured to be larger than the thickness of the substrate at a position adjacent to the opening.
Preferably, the substrate is a resin molded body.
Preferably, the plastic deformation of the collar is performed by pressing the collar from both sides thereof by the first and second pressing members, and the first pressing member includes a first contact portion that abuts on the collar. , The second pressing member includes a second contact portion that comes into contact with the collar.
Preferably, the first and second abutting portions each include protrusions provided to abut the collar in a portion of the circumferential direction of the collar.
Preferably, the protrusions are provided at a plurality of locations in the circumferential direction.
Preferably, the first and second abutting portions are provided so as to abut the radial outer portion of the collar.
Preferably, the first pressing member includes a support convex portion that supports the collar, and the second pressing member includes a concave portion that can accommodate the support convex portion.
Preferably, the first contact portion is arranged around the support convex portion, and the second contact portion is arranged around the concave portion.
Preferably, a substrate having an opening and a collar fixed to the substrate are provided, and the collar is formed by plastically deforming both side surfaces of the collar from both side surfaces of the substrate in the opening. A structure is provided that is fixed to.

一実施形態に係る基体１と、基体１の板状部１ｂに形成された開口部２に挿入される前のカラー３を表す斜視図である。It is a perspective view which shows the base 1 which concerns on one Embodiment, and the collar 3 before being inserted into the opening 2 formed in the plate-shaped part 1b of the base 1. 図２Ａは開口部２にカラー３が挿入された状態（押圧前）、図２Ｂはカラー３の両面側が塑性変形し、カラー３の径方向に突出する突出部３１が形成された状態（押圧後）を表す斜視図である。ここで、図２Ｂにおける状態が一実施形態に係る構造体１０である。FIG. 2A shows a state in which the collar 3 is inserted into the opening 2 (before pressing), and FIG. 2B shows a state in which both sides of the collar 3 are plastically deformed to form a protruding portion 31 protruding in the radial direction of the collar 3 (after pressing). ) Is a perspective view. Here, the state in FIG. 2B is the structure 10 according to the embodiment. 図３Ａは第１押圧部材４及び第２押圧部材５によりカラー３を押圧する様子を表す斜視図である。ここで、図３Ａにおいては基体１を図示していない。図３Ｂは第１押圧部材４、図３Ｃは第２押圧部材５を表す斜視図である。FIG. 3A is a perspective view showing how the collar 3 is pressed by the first pressing member 4 and the second pressing member 5. Here, the substrate 1 is not shown in FIG. 3A. FIG. 3B is a perspective view showing the first pressing member 4, and FIG. 3C is a perspective view showing the second pressing member 5. 図４Ａは突起４１周辺の部分拡大図であり、図４Ｂは突起５１周辺の部分拡大図である。FIG. 4A is a partially enlarged view of the periphery of the protrusion 41, and FIG. 4B is a partially enlarged view of the periphery of the protrusion 51. 図５Ａは押圧前における各部材の突起４１及び突起５１を通る断面図である。図５Ｂは押圧後における各部材の突起４１及び突起５１を通る断面図である。FIG. 5A is a cross-sectional view of each member passing through the protrusions 41 and 51 before pressing. FIG. 5B is a cross-sectional view of each member after being pressed through the protrusions 41 and 51. 図６Ａは図５Ａの領域Ｘの部分拡大図である。図６Ｂは図５Ｂの領域Ｙの部分拡大図である。FIG. 6A is a partially enlarged view of the region X of FIG. 5A. FIG. 6B is a partially enlarged view of the region Y of FIG. 5B. 図７は、図２ＢのＡ−Ａ線断面に相当する断面の断面図である。図７に示されるように、カラー３の側面が内側にめり込み、突出部３１が形成される。FIG. 7 is a cross-sectional view of a cross section corresponding to the cross section taken along line AA of FIG. 2B. As shown in FIG. 7, the side surface of the collar 3 is recessed inward to form the protruding portion 31. 図７の領域Ｚの部分拡大図である。It is a partially enlarged view of the region Z of FIG. 押圧後のカラー３を表す斜視図である。It is a perspective view which shows the color 3 after pressing. 突起５１の他の形状を表す図である。It is a figure which shows the other shape of the protrusion 51.

以下、本発明の実施形態について説明する。以下に示す実施形態中で示した各種特徴事項は、互いに組み合わせ可能である。 Hereinafter, embodiments of the present invention will be described. The various features shown in the embodiments shown below can be combined with each other.

図１〜図９を用いて、一実施形態に係る構造体１０及び構造体１０の製造方法について説明する。構造体１０は、基体１の板状部１ｂに形成された開口部２に挿入されたカラー３の両面側を塑性変形させ、突出部３１によりカラー３を基体１に固定したものである。かかる構造体１０の用途は特に限定されず、例えば、構造体１０をバスに搭載し、オイルピラーパイプをカラー３及び開口部２に挿入し、オイルピラーパイプを位置決めする用途に利用することができる。また、カラー３及び開口部２にボルトやパイプを挿入したり、ロープを通したりしてもよく、単なる装飾としてカラー３を設けたりしてもよい。 A structure 10 and a method for manufacturing the structure 10 according to the embodiment will be described with reference to FIGS. 1 to 9. In the structure 10, both side surfaces of the collar 3 inserted into the opening 2 formed in the plate-shaped portion 1b of the substrate 1 are plastically deformed, and the collar 3 is fixed to the substrate 1 by the protruding portion 31. The use of the structure 10 is not particularly limited, and for example, the structure 10 can be mounted on a bus, the oil pillar pipe can be inserted into the collar 3 and the opening 2, and the structure 10 can be used for positioning the oil pillar pipe. .. Further, a bolt or a pipe may be inserted into the collar 3 and the opening 2, a rope may be passed through the collar 3, or the collar 3 may be provided as a mere decoration.

＜構造体１０＞
図１、図２Ａ及び図２Ｂに示されるように、開口部２を有する基体１と、開口部２に挿入可能な大きさのカラー３により構造体１０が形成される。本実施形態では、基体１は樹脂組成物であり、板状部１ｂを有する。板状部１ｂは、カラー３を装着可能な開口部２を形成可能な板状の部位であり、その厚さが略均一であることが好ましい。開口部２は、板状部１ｂに形成される。ここで、基体１は任意の方法で製造することができ、例えば、ブロー成形、射出成形等の方法により製造される。基体１は、中空体であってもよく、中実体であってもよい。また、基体１の形状は任意であり、板状部１ｂの開口部２近傍以外の箇所の形状、大きさは適宜設計することができる。また、図１ではカラー３は環状であるが、これに限定されない。例えば、カラー３の形状は、多角形又は環状部材の一部が切断された形状であってもよい。また、複数の部材によりカラー３が形成されてもよい。ここで、本実施形態では、カラー３は金属リングである。金属として、例えばスチール等の合金を利用することもできる。 <Structure 10>
As shown in FIGS. 1, 2A and 2B, the structure 10 is formed by the substrate 1 having the opening 2 and the collar 3 having a size that can be inserted into the opening 2. In the present embodiment, the substrate 1 is a resin composition and has a plate-shaped portion 1b. The plate-shaped portion 1b is a plate-shaped portion capable of forming an opening 2 to which the collar 3 can be mounted, and it is preferable that the thickness thereof is substantially uniform. The opening 2 is formed in the plate-shaped portion 1b. Here, the substrate 1 can be manufactured by any method, for example, by a method such as blow molding or injection molding. The substrate 1 may be a hollow body or a medium substance. Further, the shape of the substrate 1 is arbitrary, and the shape and size of the portion other than the vicinity of the opening 2 of the plate-shaped portion 1b can be appropriately designed. Further, in FIG. 1, the color 3 is annular, but the color 3 is not limited to this. For example, the shape of the collar 3 may be a polygonal shape or a shape in which a part of the annular member is cut off. Further, the collar 3 may be formed by a plurality of members. Here, in the present embodiment, the collar 3 is a metal ring. As the metal, for example, an alloy such as steel can be used.

図２Ａは、開口部２にカラー３が挿入された状態（押圧前）である。図２に示されるように、後述する第１押圧部材４及び第２押圧部材５によりカラー３が押圧される前においては、カラー３には図２Ｂに示されるような突出部３１が形成されていない。一方、図２Ｂに示されるように、第１押圧部材４及び第２押圧部材５による押圧後においては、カラー３の両面側が塑性変形し、カラー３の両面側に窪み３２及び突出部３１（図８参照）が形成される。押圧後のカラー３及び基体１により、構造体１０が構成される。 FIG. 2A shows a state in which the collar 3 is inserted into the opening 2 (before pressing). As shown in FIG. 2, before the collar 3 is pressed by the first pressing member 4 and the second pressing member 5, which will be described later, the collar 3 is formed with a protruding portion 31 as shown in FIG. 2B. Absent. On the other hand, as shown in FIG. 2B, after being pressed by the first pressing member 4 and the second pressing member 5, both sides of the collar 3 are plastically deformed, and the recess 32 and the protrusion 31 (FIG. 3) are formed on both sides of the collar 3. 8) is formed. The structure 10 is composed of the collar 3 and the substrate 1 after pressing.

＜構造体１０の製造方法＞
以下、図３〜図９を用いて、構造体１０の製造方法について説明する。ここで、視認性の向上のため、図３Ａでは、基体１を省略している。 <Manufacturing method of structure 10>
Hereinafter, a method for manufacturing the structure 10 will be described with reference to FIGS. 3 to 9. Here, in order to improve visibility, the substrate 1 is omitted in FIG. 3A.

図３Ａに示されるように、同軸上に配置された第１押圧部材４及び第２押圧部材５の間にカラー３が位置するように配置する。このとき、カラー３は基体１の開口部２に挿入された状態（図２Ａ）である。ここで、第１押圧部材４及び第２押圧部材５は任意の部材を利用することができ、例えば一対の治具により構成される。 As shown in FIG. 3A, the collar 3 is arranged so as to be located between the first pressing member 4 and the second pressing member 5 arranged coaxially. At this time, the collar 3 is in a state of being inserted into the opening 2 of the substrate 1 (FIG. 2A). Here, any member can be used for the first pressing member 4 and the second pressing member 5, and the first pressing member 4 and the second pressing member 5 are composed of, for example, a pair of jigs.

図３Ｂに示されるように、第１押圧部材４にはカラー３を支持する支持凸部４２が設けられる。支持凸部４２の外周形状は、カラー３の内周形状に略一致しており、カラー３に支持凸部４２を挿通させることによってカラー３を支持凸部４２に対して位置決めできるようになっている。また、支持凸部４２の上端には第２押圧部材５の凹部５２に対向するテーパー状の先端部４３が設けられる。先端部４３は、テーパー面４４ｔを備え（図４Ａ参照）、支持凸部４２の基部よりも外周形状が小さくなっており、カラー３に支持凸部４２を挿通させることが容易になっている。また、第１押圧部材４及び第２押圧部材５の間で僅かな位置ずれが起こった場合に、支持凸部４２が凹部５２内に導かれるようになっている。支持凸部４２の下端の周囲にはカラー３に当接する第１当接部４５が設けられる。第１当接部４５は、ベース面４４と、ベース面４４から突出するように設けられた突起４１を備える。突起４１は、カラー３の周方向の一部においてカラー３に当接するように設けられる。また、図４Ａに示されるように、突起４１は、カラー３側に向かって、周方向の幅が徐々に狭くなるようになっている。つまり、突起４１は、その側面がテーパー面４１ｔになっている。このような構成によって、突起４１がカラー３にめり込みやすくなっている。また、突起４１は第１当接部４５の周方向の複数箇所に設けられる。突起４１の数は特に限定されないが、本実施形態では４つの突起４１が設けられている。なお、本実施形態では、第１当接部４５は、カラー３の径方向の外側の一部に当接するように設けられる。さらに、突起４１は第１当接部４５の径方向外側に設けられており、第１押圧部材４の平面視において突起４１と支持凸部４２の間に隙間ｇが形成される。 As shown in FIG. 3B, the first pressing member 4 is provided with a support convex portion 42 that supports the collar 3. The outer peripheral shape of the support convex portion 42 substantially matches the inner peripheral shape of the collar 3, and the collar 3 can be positioned with respect to the support convex portion 42 by inserting the support convex portion 42 through the collar 3. There is. Further, a tapered tip portion 43 facing the recess 52 of the second pressing member 5 is provided at the upper end of the support convex portion 42. The tip portion 43 has a tapered surface 44t (see FIG. 4A) and has a smaller outer peripheral shape than the base portion of the support convex portion 42, so that the support convex portion 42 can be easily inserted through the collar 3. Further, when a slight positional deviation occurs between the first pressing member 4 and the second pressing member 5, the support convex portion 42 is guided into the concave portion 52. A first contact portion 45 that contacts the collar 3 is provided around the lower end of the support convex portion 42. The first contact portion 45 includes a base surface 44 and a protrusion 41 provided so as to project from the base surface 44. The protrusion 41 is provided so as to come into contact with the collar 3 in a part of the circumferential direction of the collar 3. Further, as shown in FIG. 4A, the width of the protrusion 41 in the circumferential direction gradually narrows toward the collar 3 side. That is, the side surface of the protrusion 41 is a tapered surface 41t. With such a configuration, the protrusion 41 is easily fitted into the collar 3. Further, the protrusions 41 are provided at a plurality of locations in the circumferential direction of the first contact portion 45. The number of protrusions 41 is not particularly limited, but in this embodiment, four protrusions 41 are provided. In the present embodiment, the first contact portion 45 is provided so as to abut on a part of the outer side of the collar 3 in the radial direction. Further, the protrusion 41 is provided on the outer side in the radial direction of the first contact portion 45, and a gap g is formed between the protrusion 41 and the support convex portion 42 in the plan view of the first pressing member 4.

図３Ｃに示されるように、第２押圧部材５は、凹部５２が設けられた筒状の部材である。凹部５２の内周形状は、支持凸部４２の外周形状に略一致しており、支持凸部４２が凹部５２内に挿入されることによって、第１押圧部材４が第２押圧部材５に対して高精度で位置決めされるようになっている。カラー３の押圧時において、凹部５２は支持凸部４２を収容するものである。凹部５２の周囲にはカラー３に当接する第２当接部５５が設けられる。第２当接部５５は、ベース面５４と、ベース面５４から突出するように設けられた突起５１を備える。突起５１は、カラー３の周方向の一部においてカラー３に当接するように設けられる。また、図４Ｂに示されるように、突起５１は、カラー３側に向かって、周方向の幅が徐々に狭くなるようになっている。つまり、突起５１は、その側面がテーパー面５１ｔになっている。このような構成によって、突起５１がカラー３にめり込みやすくなっている。また、突起５１は第２当接部５５の周方向の複数箇所に設けられる。突起５１の数は特に限定されないが、本実施形態では４つの突起４１が設けられている。なお、本実施形態では、第２当接部５５は、カラー３の径方向の外側の一部に当接するように設けられる。さらに、突起５１は第２当接部５５の径方向外側に設けられており、凹部５２まで到達しないように隙間ｇが形成される。 As shown in FIG. 3C, the second pressing member 5 is a tubular member provided with a recess 52. The inner peripheral shape of the concave portion 52 substantially matches the outer peripheral shape of the support convex portion 42, and when the support convex portion 42 is inserted into the concave portion 52, the first pressing member 4 with respect to the second pressing member 5. It is designed to be positioned with high accuracy. When the collar 3 is pressed, the concave portion 52 accommodates the supporting convex portion 42. A second contact portion 55 that contacts the collar 3 is provided around the recess 52. The second contact portion 55 includes a base surface 54 and a protrusion 51 provided so as to project from the base surface 54. The protrusion 51 is provided so as to come into contact with the collar 3 in a part of the circumferential direction of the collar 3. Further, as shown in FIG. 4B, the width of the protrusion 51 in the circumferential direction gradually narrows toward the collar 3 side. That is, the side surface of the protrusion 51 is a tapered surface 51t. With such a configuration, the protrusion 51 is easily fitted into the collar 3. Further, the protrusions 51 are provided at a plurality of locations in the circumferential direction of the second contact portion 55. The number of protrusions 51 is not particularly limited, but in this embodiment, four protrusions 41 are provided. In the present embodiment, the second contact portion 55 is provided so as to abut on a part of the outer side of the collar 3 in the radial direction. Further, the protrusion 51 is provided on the outer side in the radial direction of the second contact portion 55, and a gap g is formed so as not to reach the recess 52.

ここで、本実施形態では、突起４１と突起５１が互いに対向するように、第１押圧部材４及び第２押圧部材５が位置決めされる。そして、突起４１及び突起５１により、カラー３の突出部３１が形成される。また、突起４１及び突起５１は、カラー３の両面側を塑性変形できる程度の強度を有する。 Here, in the present embodiment, the first pressing member 4 and the second pressing member 5 are positioned so that the protrusion 41 and the protrusion 51 face each other. Then, the protrusion 41 and the protrusion 51 form the protrusion 31 of the collar 3. Further, the protrusions 41 and 51 have enough strength to plastically deform both sides of the collar 3.

以下、構造体１０の具体的な製造方法について、図５及び図６を用いて説明する。図５Ａは押圧前における各部材の突起４１及び突起５１を通る断面図であり、図６Ａは図５Ａの領域Ｘの部分拡大図である。また、図５Ｂは押圧後における各部材の突起４１及び突起５１を通る断面図であり、図６Ｂは図５Ｂの領域Ｙの部分拡大図である。 Hereinafter, a specific manufacturing method of the structure 10 will be described with reference to FIGS. 5 and 6. FIG. 5A is a cross-sectional view of each member passing through the protrusions 41 and 51 before pressing, and FIG. 6A is a partially enlarged view of the region X of FIG. 5A. Further, FIG. 5B is a cross-sectional view of each member passing through the protrusions 41 and 51 after pressing, and FIG. 6B is a partially enlarged view of the region Y of FIG. 5B.

まず、図５Ａに示されるように、突起４１及び突起５１が互いに対向するように、第１押圧部材４及び第２押圧部材５を位置決めする。そして、第１押圧部材４の支持凸部４２によりカラー３を支持する。このとき、カラー３は基体１の開口部２に挿入された状態（図２Ａ）である。次に、図５Ｂに示されるように、第２押圧部材５を下降させる。そして、支持凸部４２が凹部５２に収容され、且つ、突起４１と突起５１が互いに対向した状態で、カラー３を両面側から押圧する。このとき、突起４１によりカラー３の下側が塑性変形し、突起５１によりカラー３の上側が塑性変形する。ここで、突起４１及び突起５１を互いに対向するように配置しているので、突起４１と突起５１に挟まれた箇所に圧力が集中する。このため、第１押圧部材４及び第２押圧部材５の押圧力が弱い場合や、カラー３が固い場合であっても、突起４１と突起５１がカラー３の両面側に食い込みやすくなる。さらに、突起４１及び突起５１が互いに対向することによりカラー３の両面側から均一な力をかけられるので、押圧中にカラー３がたわむことを低減することができる。 First, as shown in FIG. 5A, the first pressing member 4 and the second pressing member 5 are positioned so that the protrusion 41 and the protrusion 51 face each other. Then, the collar 3 is supported by the support convex portion 42 of the first pressing member 4. At this time, the collar 3 is in a state of being inserted into the opening 2 of the substrate 1 (FIG. 2A). Next, as shown in FIG. 5B, the second pressing member 5 is lowered. Then, the collar 3 is pressed from both sides in a state where the support convex portion 42 is housed in the concave portion 52 and the protrusion 41 and the protrusion 51 face each other. At this time, the protrusion 41 plastically deforms the lower side of the collar 3, and the protrusion 51 plastically deforms the upper side of the collar 3. Here, since the protrusions 41 and 51 are arranged so as to face each other, the pressure is concentrated on the portion sandwiched between the protrusions 41 and 51. Therefore, even when the pressing force of the first pressing member 4 and the second pressing member 5 is weak or the collar 3 is hard, the protrusions 41 and 51 are likely to bite into both sides of the collar 3. Further, since the protrusions 41 and 51 face each other to apply a uniform force from both side surfaces of the collar 3, it is possible to reduce the bending of the collar 3 during pressing.

かかる押圧前後におけるカラー３の様子について、図６Ａ及び図６Ｂを用いてさらに詳細に説明する。 The state of the collar 3 before and after such pressing will be described in more detail with reference to FIGS. 6A and 6B.

図６Ａに示されるように、押圧前においては、カラー３の下面が４つの突起４１に載置された状態となっている。このとき、図３Ｂに示されるように、第１押圧部材４の平面視において突起４１と支持凸部４２が非連続となっているので、押圧前においてはカラー３が突起４１に載置されており、カラー３とベース面４４は非接触となっている。 As shown in FIG. 6A, before pressing, the lower surface of the collar 3 is placed on the four protrusions 41. At this time, as shown in FIG. 3B, since the protrusion 41 and the support convex portion 42 are discontinuous in the plan view of the first pressing member 4, the collar 3 is placed on the protrusion 41 before pressing. The collar 3 and the base surface 44 are not in contact with each other.

そして、第２押圧部材５を下降させ、第１押圧部材４及び第２押圧部材５によりカラー３の両面側から押圧することにより、図６Ｂに示される状態となる。このとき、第１当接部４５及び第２当接部５５がカラー３に当接する。また、突起４１及び突起５１に挟まれたカラー３の箇所は、ベース面４４及びベース面５４と当接する箇所よりも大きな力が加わるので、カラー３に窪み３２及び突出部３１（図８参照）が形成される。 Then, the second pressing member 5 is lowered and pressed by the first pressing member 4 and the second pressing member 5 from both sides of the collar 3, so that the state shown in FIG. 6B is obtained. At this time, the first contact portion 45 and the second contact portion 55 come into contact with the collar 3. Further, since a larger force is applied to the portion of the collar 3 sandwiched between the protrusion 41 and the protrusion 51 than the portion in contact with the base surface 44 and the base surface 54, the recess 32 and the protrusion 31 (see FIG. 8) are applied to the collar 3. Is formed.

次に、図７及び図８を用いて、カラー３に窪み３２及び突出部３１が形成される様子について説明する。 Next, a state in which the recess 32 and the protrusion 31 are formed in the collar 3 will be described with reference to FIGS. 7 and 8.

図７は、図２ＢのＡ−Ａ線断面に相当する断面の断面図であり、図６Ｂの状態から第１押圧部材４及び第２押圧部材５を省略し、カラー３とともに基体１を図示したものである。図７に示されるように、本実施形態では、塑性変形前のカラー３の厚さＤ（カラー３の突出部３１以外の部分の厚さに相当）が、開口部２に隣接した位置での基体１（板状部１ｂ）の厚さｄよりも大きくなるように設定される。これは、カラー３のうち板状部１ｂの上下にはみだした部分を塑性変形させ、突出部３１を形成するためである。図７に示されるように、押圧によりカラー３の上下に窪み３２が形成される。このとき、窪み３２周辺におけるカラー３の一部が径方向の外側に押し出されつつ、カラー３の側面の一部が径方向の内側に向けてめりこむように塑性変形する。これにより、カラー３の両面側に径方向に突出する突出部３１が形成される。ここで、図７に示されるように、突出部３１は、塑性変形前のカラー３の直径Ｒよりも径方向に突出している。また、突起４１及び突起５１が互いに対向するように設けられているため、突出部３１もカラー３の両面側において互いに対向するように形成される。 FIG. 7 is a cross-sectional view of a cross section corresponding to the cross section taken along the line AA of FIG. 2B. From the state of FIG. 6B, the first pressing member 4 and the second pressing member 5 are omitted, and the substrate 1 is shown together with the collar 3. It is a thing. As shown in FIG. 7, in the present embodiment, the thickness D of the collar 3 (corresponding to the thickness of the portion other than the protrusion 31 of the collar 3) before plastic deformation is at a position adjacent to the opening 2. The thickness d of the substrate 1 (plate-shaped portion 1b) is set to be larger than the thickness d. This is because the portion of the collar 3 that protrudes above and below the plate-shaped portion 1b is plastically deformed to form the protruding portion 31. As shown in FIG. 7, dents 32 are formed above and below the collar 3 by pressing. At this time, a part of the collar 3 around the recess 32 is extruded outward in the radial direction, and a part of the side surface of the collar 3 is plastically deformed so as to be recessed inward in the radial direction. As a result, protruding portions 31 projecting in the radial direction are formed on both side surfaces of the collar 3. Here, as shown in FIG. 7, the protruding portion 31 protrudes in the radial direction from the diameter R of the collar 3 before plastic deformation. Further, since the protrusion 41 and the protrusion 51 are provided so as to face each other, the protrusion 31 is also formed so as to face each other on both side surfaces of the collar 3.

次に、図８を用いて突出部３１について説明する。図８中の破線は、塑性変形前のカラー３の側端部を表す。図８に示されるように、上述の固定工程により、カラー３の両面側に形成された突出部３１が基体１の両面側に食い込んだ状態となる。本実施形態では、カラー３は金属製であり、基体１は樹脂組成物であるため、突出部３１が基体１の両面側に食い込みやすくなっている。これにより、カラー３が基体１に固定され、いずれの方向に対してもカラー３が基体１から抜け落ちることを低減することが可能となる。また、カラー３の両面側を塑性変形させるため、特別な加工を要することなく、シンプルな形状のカラーを利用することが可能となる。 Next, the protruding portion 31 will be described with reference to FIG. The broken line in FIG. 8 represents the side end portion of the collar 3 before plastic deformation. As shown in FIG. 8, by the above-mentioned fixing step, the protruding portions 31 formed on both side surfaces of the collar 3 are in a state of biting into both side surfaces of the substrate 1. In the present embodiment, since the collar 3 is made of metal and the substrate 1 is a resin composition, the protruding portion 31 easily bites into both side surfaces of the substrate 1. As a result, the collar 3 is fixed to the substrate 1, and it is possible to reduce the collar 3 from falling out of the substrate 1 in any direction. Further, since both sides of the collar 3 are plastically deformed, it is possible to use a collar having a simple shape without requiring special processing.

ここで、図６Ａ及び図６Ｂ、図７、図８に示されるように、本実施形態では、第１当接部４５及び第２当接部５５は、カラー３の径方向の外側の一部に当接するように設けられる。これにより、カラー３の内側が突出することを低減することが可能となる。 Here, as shown in FIGS. 6A and 6B, FIGS. 7 and 8, in the present embodiment, the first contact portion 45 and the second contact portion 55 are a part of the outer side in the radial direction of the collar 3. It is provided so as to come into contact with. This makes it possible to reduce the protrusion of the inside of the collar 3.

以上の固定工程により、カラー３は図９に示される状態となる。押圧後のカラー３には、突起４１及び突起５１に相当する箇所に窪み３２及び突出部３１（図８参照）が形成される。また、窪み３２及び突出部３１は、カラー３の両面側において互いに対向する箇所に形成される。 By the above fixing step, the collar 3 is in the state shown in FIG. The collar 3 after pressing is formed with a recess 32 and a protrusion 31 (see FIG. 8) at locations corresponding to the protrusion 41 and the protrusion 51. Further, the recess 32 and the protrusion 31 are formed at positions facing each other on both side surfaces of the collar 3.

以上の固定工程により、図２Ｂに示される構造体１０が形成される。かかる構造体１０は、開口部２を有する基体１と、基体１に固定されたカラー３と、を備える。また、カラー３は、開口部２内においてカラー３の両面側を基体１の両面側のそれぞれから塑性変形させて基体１に固定されている。 By the above fixing step, the structure 10 shown in FIG. 2B is formed. The structure 10 includes a substrate 1 having an opening 2 and a collar 3 fixed to the substrate 1. Further, the collar 3 is fixed to the substrate 1 by plastically deforming both side surfaces of the collar 3 from both side surfaces of the substrate 1 in the opening 2.

＜その他＞
以上、本実施形態に係る構造体１０及びその製造方法について説明したが、本発明はこれらに限定されない。 <Others>
Although the structure 10 and the method for producing the structure 10 according to the present embodiment have been described above, the present invention is not limited thereto.

例えば、図１０に示されるように、突起５１の高さが、第２押圧部材５の径方向内側に向かって徐々に大きくなるように構成されてもよい。この場合、傾斜面５１ｓにより、基体１のうち塑性変形した部分を径方向外側（図中の矢印Ｌ及び矢印Ｒ）に向けて押し出す力が生じ、突出部３１を径方向外側に向けてより突出させて形成することが可能になる。 For example, as shown in FIG. 10, the height of the protrusion 51 may be configured to gradually increase inward in the radial direction of the second pressing member 5. In this case, the inclined surface 51s generates a force to push out the plastically deformed portion of the substrate 1 toward the radial outer side (arrows L and R in the figure), and the protruding portion 31 protrudes more toward the radial outer side. It becomes possible to form it.

また、第２押圧部材５と同様に、第１押圧部材４の突起４１についても、図１０に示される突起５１と同様の構成を採用することもできる。この場合、突起５１のみを図１０の構成とした場合と比べ、突出部３１を径方向外側に向けてさらに突出させて形成することが可能になる。 Further, similarly to the second pressing member 5, the protrusion 41 of the first pressing member 4 may have the same configuration as the protrusion 51 shown in FIG. In this case, as compared with the case where only the protrusion 51 is configured as shown in FIG. 10, the protrusion 31 can be further projected outward in the radial direction.

また、カラー３を樹脂製とすることもできる。また、カラー３の厚さＤより基体１の厚さを大きくしてもよい。この場合、基体１の開口部２周辺を削り、開口部２に隣接した位置での基体１の厚さを部分的にカラー３の厚さＤより小さくすると好適である。 Further, the color 3 may be made of resin. Further, the thickness of the substrate 1 may be larger than the thickness D of the collar 3. In this case, it is preferable to scrape the periphery of the opening 2 of the substrate 1 so that the thickness of the substrate 1 at a position adjacent to the opening 2 is partially smaller than the thickness D of the collar 3.

また、第１押圧部材４及び第２押圧部材５の形状はカラー３の形状に応じて適宜変更することができる。さらに、突起４１及び突起５１の数及び配置位置は特に限定されず、任意の個数とすることができる。なお、突出部３１は、対称性を有する方が強固にカラー３を基体１に固定できるため、突起４１及び突起５１は空間的に対称性を有する配置とすることが好ましい。さらに、突起４１及び突起５１に代えて、カラー３の直径Ｒよりも大きな径を有し、カラー３の径方向の外側の一部に当接するフランジを設けてもよい。この場合、突出部３１の形状は、カラー３の径方向から突出する円環状となる。 Further, the shapes of the first pressing member 4 and the second pressing member 5 can be appropriately changed according to the shape of the collar 3. Further, the number and arrangement positions of the protrusions 41 and 51 are not particularly limited, and may be any number. It is preferable that the protrusions 41 and 51 are arranged so as to have spatial symmetry because the collar 3 can be more firmly fixed to the substrate 1 if the protrusions 31 have symmetry. Further, instead of the protrusion 41 and the protrusion 51, a flange having a diameter larger than the diameter R of the collar 3 and abutting on a part of the outer side in the radial direction of the collar 3 may be provided. In this case, the shape of the protruding portion 31 is an annular shape protruding from the radial direction of the collar 3.

また、支持凸部４２を第１押圧部材４以外に設けてもよい。また、第１押圧部材４及び第２押圧部材５は互いに接近する構成とすればよく、第１押圧部材４を固定して第２押圧部材５を下降させる構成や、第２押圧部材５を固定して第１押圧部材４を上昇させる構成としてもよい。また、第１押圧部材４及び第２押圧部材５に代えて、１組の押圧部材を左右方向に相対移動させる構成としてもよい。 Further, the support convex portion 42 may be provided in addition to the first pressing member 4. Further, the first pressing member 4 and the second pressing member 5 may be configured to approach each other, and the first pressing member 4 may be fixed to lower the second pressing member 5, or the second pressing member 5 may be fixed. The first pressing member 4 may be raised. Further, instead of the first pressing member 4 and the second pressing member 5, a set of pressing members may be relatively moved in the left-right direction.

１：基体
１ｂ：板状部
２：開口部
３：カラー
３１：突出部
３２：窪み
４：第１押圧部材
４１：突起
４２：凹部
４４：ベース面
４５：第１当接部
５：第２押圧部材
５１：突起
５２：支持凸部
５３：先端部
５４：ベース面
５５：第２当接部
１０：構造体 1: Base 1b: Plate-shaped portion 2: Opening 3: Collar 31: Protruding portion 32: Recess 4: First pressing member 41: Protrusion 42: Recessing 44: Base surface 45: First contact portion 5: Second pressing Member 51: Protrusion 52: Support convex portion 53: Tip portion 54: Base surface 55: Second contact portion 10: Structure

Claims

A fixing step is provided in which both side surfaces of the collar are plastically deformed from each of the both side surfaces of the substrate and fixed to the substrate in the opening provided in the substrate.
The substrate is a resin molded product.
Before the collar is plastically deformed, the opening of the substrate is formed linearly from one surface to the other when viewed in a cross section orthogonal to both sides of the substrate. ,
The plastic deformation is performed so that a plurality of protrusions protruding in the radial direction of the collar are formed.
The plurality of protrusions are arranged so as to be aligned in the circumferential direction of the collar.
A method for manufacturing a structure, wherein each of the protruding portions is formed so as to bite into both side surfaces of the substrate.

The method for manufacturing a structure according to claim 1, wherein the protrusions formed on both sides of the collar are formed so as to face each other.

A fixing step is provided in which both side surfaces of the collar are plastically deformed from each of the both side surfaces of the substrate and fixed to the substrate in the opening provided in the substrate.
The plastic deformation is performed so that a protruding portion protruding in the radial direction of the collar is formed.
The protruding portion is formed so as to bite into both side surfaces of the substrate.
A method for manufacturing a structure, wherein the thickness of a portion of the collar other than the protruding portion is larger than the thickness of the substrate at a position adjacent to the opening.

It said substrate is a resin molded body, method of manufacturing the structure according to 請Motomeko 3.

The plastic deformation of the collar is performed by pressing the collar from both sides thereof with the first and second pressing members.
The first pressing member includes a first contact portion that comes into contact with the collar.
The method for manufacturing a structure according to any one of claims 1 to 4, wherein the second pressing member includes a second contact portion that comes into contact with the collar.

A fixing step is provided in which both side surfaces of the collar are plastically deformed from each of the both side surfaces of the substrate and fixed to the substrate in the opening provided in the substrate.
The plastic deformation of the collar is performed by pressing the collar from both sides thereof with the first and second pressing members.
The first pressing member includes a first contact portion that comes into contact with the collar.
The second pressing member includes a second contact portion that comes into contact with the collar.
A method for manufacturing a structure, wherein each of the first and second contact portions includes protrusions provided so as to contact the collar in a part of the circumferential direction of the collar.

The method for manufacturing a structure according to claim 6, wherein the protrusions are provided at a plurality of locations in the circumferential direction.

The method for manufacturing a structure according to any one of claims 5 to 7, wherein the first and second contact portions are provided so as to abut on a part of the outer side of the collar in the radial direction.

The first pressing member includes a support convex portion that supports the collar, and has a support convex portion.
The method for manufacturing a structure according to any one of claims 5 to 8, wherein the second pressing member includes a concave portion capable of accommodating the support convex portion.

The first contact portion is arranged around the support convex portion and is arranged around the support convex portion.
The method for manufacturing a structure according to claim 9, wherein the second contact portion is arranged around the recess.