JP2005331065A - Boss structure and metal mold for molding plate-like member having this boss structure - Google Patents

Boss structure and metal mold for molding plate-like member having this boss structure Download PDF

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JP2005331065A
JP2005331065A JP2004151763A JP2004151763A JP2005331065A JP 2005331065 A JP2005331065 A JP 2005331065A JP 2004151763 A JP2004151763 A JP 2004151763A JP 2004151763 A JP2004151763 A JP 2004151763A JP 2005331065 A JP2005331065 A JP 2005331065A
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boss
plate
short
hole
tip
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JP4568026B2 (en
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Yasuyuki Suzuki
庸之 鈴木
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Yazaki Corp
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Yazaki Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a boss structure capable of surely preventing looseness and falling-off of fixed two plate-like members without reducing working efficiency in assembling. <P>SOLUTION: The first plate-like member 1 has a first boss 11 forming a first short size projection part 11a and a first long size projection part 11b on a side surface, and a second boss 12 forming a second short size projection part 12d and second long size projection parts 12c, 12a and 12b on a side surface. In assembling, the first boss 11 is pressed in a first through-hole 21 so that a line for connecting the first short size projection part 11a and the first long size projection part 11b becomes substantially parallel to a short diameter of the first through-hole 21 of the second plate-like member 2. At the same time, the second boss 12 is also pressed in a second through-hole 22. After completing press-in, a vertical cross section of the first short size projection part 11a and the second short size projection part 12d engages with the second plate-like member 2, and the first plate-like member 1 is surely fixed to the second plate-like member 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ボス構造及びこれを有する板状部材を成形するための金型に関し、特に、車載計器等を構成する複数の板状部材を固着するためのボス構造及びこれを有する板状部材を成形するための金型に関する。   The present invention relates to a boss structure and a mold for forming a plate-like member having the boss structure, and in particular, a boss structure for fixing a plurality of plate-like members constituting an in-vehicle instrument or the like and a plate-like member having the boss structure. The present invention relates to a mold for molding.

車載計器等には、導光板やケース等のような板状部材が含まれており、これらはボス構造により固定されている。図６は、従来のボス構造を示す図である。図６に示すように、従来のボス構造においては、計器ケース９に立設された支柱９１の先端部にボス９２が突設されている。ボス９２は円筒状でありその先端部が丸められている。   In-vehicle instruments and the like include plate-like members such as a light guide plate and a case, and these are fixed by a boss structure. FIG. 6 is a diagram showing a conventional boss structure. As shown in FIG. 6, in the conventional boss structure, a boss 92 protrudes from the tip end portion of a column 91 erected on the instrument case 9. The boss 92 has a cylindrical shape and its tip is rounded.

ボス９２が挿入される導光板８には、ボス９２と同等の直径を有する貫通孔８２が穿設されている。導光板８の上には、文字板１０が重積されている。通常、車載計器等には、文字板１０の上から押さえつけるように見返し部材が取り付けられるので、組立時の作業効率等を考慮して、ボス９２は貫通孔８２に圧入されるのみである。なお、本明細書中、ボス構造とは、ボスのみならず貫通孔を含む構造を意味する。   A through hole 82 having a diameter equivalent to that of the boss 92 is formed in the light guide plate 8 into which the boss 92 is inserted. A dial plate 10 is stacked on the light guide plate 8. Normally, a turn-back member is attached to an in-vehicle instrument or the like so as to be pressed from above the dial plate 10, so that the boss 92 is only press-fitted into the through-hole 82 in consideration of work efficiency during assembly. In the present specification, the boss structure means a structure including a through hole as well as a boss.

なお、上述のような従来のボス構造は、下記特許文献１にも記載されている。
特開平１１−２７１１０２号公報 The conventional boss structure as described above is also described in Patent Document 1 below.
Japanese Patent Laid-Open No. 11-271102

そうすると、車両の走行やエンジンの振動等により、導光板８や文字板１０の組み付けにガタツキが発生し、異音が発生する場合がある。また、最悪の場合を想定すると、導光板８や文字板１０の一部がボス９２から抜け落ちることも想定される。   If so, rattling may occur in the assembly of the light guide plate 8 and the dial plate 10 due to vehicle running, engine vibration, and the like, and abnormal noise may occur. Further, assuming the worst case, it is also assumed that a part of the light guide plate 8 and the dial plate 10 falls off from the boss 92.

なお、他の問題として、ボスを有する導光板８等の板状部材を成形する際には、成形された板状部材が押し出しピンの付いてない固定側金型に付着してしまうという問題も発生していた。   As another problem, when a plate-like member such as the light guide plate 8 having a boss is formed, there is a problem that the formed plate-like member adheres to a fixed mold without an extrusion pin. It has occurred.

よって本発明は、上述した現状に鑑み、組立時の作業効率を低下させることなく、組み付けられた板状部材のガタツキ及び抜け落ちを確実に防止できるボス構造を提供することを課題としている。また、本発明は、上述した現状に鑑み、成形された板状部材が固定側金型にくっついてしまうのを防止できる金型を提供することを課題としている。   Therefore, in view of the above-described present situation, the present invention has an object to provide a boss structure that can reliably prevent rattling and falling off of an assembled plate-like member without reducing work efficiency during assembly. Another object of the present invention is to provide a mold that can prevent the molded plate-like member from sticking to the fixed-side mold in view of the above-described situation.

上記課題を解決するためになされた請求項１記載のボス構造は、第１板状部材と第２板状部材とを固着するボス構造であって、前記第１板状部材に形成された、前記第２板状部材の厚さを超える長さを有する第１及び第２ボスと、前記第２板状部材に形成された、前記第１ボスの直径と同等の短径を有する長円形状の第１貫通孔と、前記第２板状部材に形成された、前記第２ボスの直径と同等の直径を有する正円形状の第２貫通孔と、前記第１ボスの側面において、前記第１板状部材から前記第２板状部材の厚さに相当する長さだけ離間した箇所から前記第１ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、前記箇所を垂直断面とし、前記箇所から前記第１ボスの先端に向けて徐々に前記第１ボスの中心に向けて傾斜するテーパ状に形成された第１短尺凸部と、前記第１短尺凸部と反対側の前記第１ボスの側面において、前記第１板状部材から前記第１ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、先端部が前記第１ボスの中心に向けて傾斜するテーパ状に形成された第１長尺凸部と、前記第２ボスの側面において、前記第１板状部材から前記第２板状部材の厚さに相当する長さだけ離間した箇所から前記第２ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、前記箇所を垂直断面とし、前記箇所から前記第２ボスの先端に向けて徐々に前記第２ボスの中心に向けて傾斜するテーパ状に形成された第２短尺凸部と、前記第２短尺凸部と反対側の前記第２ボスの側面において、前記第１板状部材から前記第２ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、先端部が前記第２ボスの中心に向けて傾斜するテーパ状に形成された第２長尺凸部と、を有し、前記第１及び前記第２ボスの中心距離と、前記第１貫通孔及び前記第２貫通孔の中心距離と、は同等であり、前記第１短尺凸部及び前記第１長尺凸部を結ぶ線は、前記第１貫通孔の短径に略平行である、ことを特徴とする。   The boss structure according to claim 1 made to solve the above-mentioned problem is a boss structure for fixing the first plate-like member and the second plate-like member, and is formed on the first plate-like member. First and second bosses having a length exceeding the thickness of the second plate-like member, and an oval shape having a short diameter equivalent to the diameter of the first boss formed on the second plate-like member. The first through hole, the second circular through hole formed in the second plate-like member and having a diameter equivalent to the diameter of the second boss, and the side surface of the first boss. Formed in a rib shape extending in a direction perpendicular to the first plate-like member from a location spaced from the one plate-like member by a length corresponding to the thickness of the second plate-like member to the tip of the first boss, and The part has a vertical cross section, and gradually toward the tip of the first boss from the part toward the center of the first boss. The first short convex portion formed in an inclined tapered shape and the side surface of the first boss opposite to the first short convex portion, the first plate member to the tip of the first boss. A first elongated convex portion formed in a rib shape extending in a direction perpendicular to the plate-like member and having a tip portion inclined toward the center of the first boss, and a side surface of the second boss , In a rib shape extending in a direction perpendicular to the first plate-like member from a position separated from the first plate-like member by a length corresponding to the thickness of the second plate-like member to the tip of the second boss. The second short convex portion formed in a tapered shape having a vertical cross section as the portion and gradually inclined from the portion toward the tip of the second boss toward the center of the second boss; On the side surface of the second boss opposite to the second short convex portion, the first plate shape A second rib formed in a rib shape extending in a direction perpendicular to the first plate-like member from the material to the tip of the second boss, and the tip is inclined toward the center of the second boss. A center distance between the first and second bosses is equal to a center distance between the first through hole and the second through hole, and the first short protrusion. The line connecting the first long protrusions is substantially parallel to the short diameter of the first through hole.

請求項１記載の発明によれば、第１短尺凸部及び第１長尺凸部を結ぶ線が第１貫通孔の短径に略平行になるようにして、第１ボスを第１貫通孔に圧入する。これと同時に、第２ボスも第２貫通孔に圧入する。このとき、第１短尺凸部、第１長尺凸部、第２短尺凸部、第２長尺凸部の先端は、テーパ状になっているので、圧入作業は容易である。また、圧入完了後には、第１長尺凸部、第２長尺凸部が、第１貫通孔、第２貫通孔の内側面に接触して、ガタツキを防止する。また、第１短尺凸部及び第２短尺凸部の垂直断面が第２板状部材に係合して、第１板状部材と第２板状部材とが確実に固着される。   According to the first aspect of the present invention, the first boss is formed in the first through hole so that the line connecting the first short convex portion and the first long convex portion is substantially parallel to the short diameter of the first through hole. Press fit into. At the same time, the second boss is press-fitted into the second through hole. At this time, since the tips of the first short convex portion, the first long convex portion, the second short convex portion, and the second long convex portion are tapered, the press-fitting operation is easy. Further, after the press-fitting is completed, the first long convex portion and the second long convex portion come into contact with the inner side surfaces of the first through hole and the second through hole to prevent rattling. Further, the vertical cross sections of the first short convex portion and the second short convex portion are engaged with the second plate member, and the first plate member and the second plate member are securely fixed.

上記課題を解決するためになされた請求項２記載のボス構造は、請求項１記載のボス構造において、前記第２ボスの側面において均等間隔に形成された、１つの前記第２短尺凸部と、３つの前記第２長尺凸部と、を有することを特徴とする。   The boss structure according to claim 2, which has been made to solve the above-described problem, is the boss structure according to claim 1, wherein the second short protrusion is formed at equal intervals on a side surface of the second boss. It has three said 2nd elongate convex parts, It is characterized by the above-mentioned.

請求項２記載の発明によれば、第２ボスの側面において均等間隔に形成された、１つの第２短尺凸部と、３つの第２長尺凸部と、が形成されている。   According to the second aspect of the present invention, one second short convex portion and three second long convex portions formed at equal intervals on the side surface of the second boss are formed.

上記課題を解決するためになされた請求項３記載のボス構造は、請求項１又は請求項２に記載のボス構造において、前記第１板状部材は、車載計器に内蔵される導光板であり、前記第２板状部材は、前記導光板が取り付けられる計器ケースである、ことを特徴とする。   The boss structure according to claim 3, which is made to solve the above-described problem, is the boss structure according to claim 1 or 2, wherein the first plate-like member is a light guide plate built in an in-vehicle instrument. The second plate member is an instrument case to which the light guide plate is attached.

請求項３記載の発明によれば、車両の走行やエンジンの振動等が多発する環境におかれている車載計器に内蔵される導光板のガタツキや抜け落ちが防止される。   According to the third aspect of the present invention, rattling or falling off of the light guide plate built in the vehicle-mounted instrument placed in an environment in which vehicle running, engine vibration, and the like occur frequently are prevented.

上記課題を解決するためになされた請求項４記載の金型は、請求項１〜請求項３のいずれか一項に記載のボス構造を有する板状部材を成形するための金型であって、前記第１ボス及び前記第２ボスの側面にシボ加工を施すように形成するための可動側金型、を有することを特徴とする。   A mold according to claim 4 made to solve the above-mentioned problem is a mold for molding a plate-like member having a boss structure according to any one of claims 1 to 3. , And a movable side mold for forming the first boss and the second boss so as to be subjected to embossing.

請求項４記載の発明によれば、第１ボス及び第２ボスの側面にシボ加工を施すように形成するための可動側金型により板状部材が成形される。   According to invention of Claim 4, a plate-shaped member is shape | molded by the movable side metal mold | die for forming so that the side surface of a 1st boss | hub and a 2nd boss | hub may be subjected to embossing.

請求項１記載の発明によれば、第１短尺凸部及び第１長尺凸部を結ぶ線が第１貫通孔の短径に略平行になるようにして、第１ボスを第１貫通孔に圧入する。これと同時に、第２ボスも第２貫通孔に圧入する。このとき、第１短尺凸部、第１長尺凸部、第２短尺凸部、第２長尺凸部の先端は、テーパ状になっているので、圧入作業は容易である。また、圧入完了後には、第１長尺凸部、第２長尺凸部が、第１貫通孔、第２貫通孔の内側面に接触して、ガタツキを防止する。また、第１短尺凸部及び第２短尺凸部の垂直断面が第２板状部材に係合して、第１板状部材と第２板状部材とが確実に固着される。したがって、組立時の作業効率を低下させることなく、固着された２つの板状部材のガタツキ及び抜け落ちを確実に防止できる。   According to the first aspect of the present invention, the first boss is formed in the first through hole so that the line connecting the first short convex portion and the first long convex portion is substantially parallel to the short diameter of the first through hole. Press fit into. At the same time, the second boss is press-fitted into the second through hole. At this time, since the tips of the first short convex portion, the first long convex portion, the second short convex portion, and the second long convex portion are tapered, the press-fitting operation is easy. Further, after the press-fitting is completed, the first long convex portion and the second long convex portion come into contact with the inner side surfaces of the first through hole and the second through hole to prevent rattling. Further, the vertical cross sections of the first short convex portion and the second short convex portion are engaged with the second plate member, and the first plate member and the second plate member are securely fixed. Therefore, it is possible to reliably prevent rattling and falling off of the two fixed plate-like members without reducing the work efficiency during assembly.

請求項２記載の発明によれば、第２ボスの側面においても、第１長尺凸部と同等形状の第２長尺凸部が形成されている。したがって、２つの板状部材がより安定的に固着され、ガタツキをより確実に防止できる。   According to invention of Claim 2, the 2nd long convex part of the shape equivalent to a 1st long convex part is formed also in the side surface of the 2nd boss | hub. Therefore, the two plate-like members are more stably fixed, and rattling can be prevented more reliably.

請求項２記載の発明によれば、第２ボスの側面において均等間隔に形成された、１つの第２短尺凸部と、３つの第２長尺凸部と、が形成されている。したがって、２つの板状部材が更に安定的に固着され、ガタツキを更に確実に防止できる。   According to the second aspect of the present invention, one second short convex portion and three second long convex portions formed at equal intervals on the side surface of the second boss are formed. Therefore, the two plate-like members are more stably fixed, and rattling can be more reliably prevented.

請求項３記載の発明によれば、車両の走行やエンジンの振動等が多発する環境におかれている車載計器に内蔵される導光板のガタツキや抜け落ちを防止することができる。   According to the third aspect of the present invention, it is possible to prevent rattling or falling off of the light guide plate built in the vehicle-mounted instrument that is placed in an environment where the vehicle travels, engine vibrations, and the like occur frequently.

請求項４記載の発明によれば、第１ボス及び第２ボスの側面にシボ加工を施すように形成するための可動側金型により板状部材が成形される。したがって、シボ加工により成形された板状部材が、固定側金型にくっついてしまうのを防止できる。なお、板状部材が可動側金型にくっついても、押し出しピンにより板状部材が押し出されるので問題はない。   According to invention of Claim 4, a plate-shaped member is shape | molded by the movable side metal mold | die for forming so that the side surface of a 1st boss | hub and a 2nd boss | hub may be subjected to embossing. Therefore, it can prevent that the plate-shaped member shape | molded by embossing sticks to a stationary-side metal mold | die. Even if the plate-like member sticks to the movable mold, there is no problem because the plate-like member is pushed out by the push pin.

以下、本発明の実施の形態を図面に基づいて説明する。図１は、本発明の一実施形態に係り、ボスを有する側の板状部材を示す斜視図である。図２は、図１のボスをＸ方向からみたときの側面図及びその上面図である。図３（Ａ）及び図３（Ｂ）はそれぞれ、ボスが圧入される側の板状部材における貫通孔を示す上面図及び断面図である。図４は、第１板状部材と第２板状部材との組み付けを説明するための図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a plate-like member on the side having a boss according to an embodiment of the present invention. 2 is a side view and a top view of the boss of FIG. 1 when viewed from the X direction. FIGS. 3A and 3B are a top view and a cross-sectional view showing a through hole in a plate-like member on the side where the boss is press-fitted, respectively. FIG. 4 is a view for explaining the assembly of the first plate-like member and the second plate-like member.

図１及び図２に示すように、例えば、第１板状部材１としての導光板は、所定距離だけ離間して突設された円筒状の第１ボス１１及び第２ボス１２を有する。第１ボス１１及び第２ボス１２は、第１板状部材１が固着される第２板状部材２の厚さｔ′（図３参照）を超える長さを有する。第１ボス１１及び第２ボス１２の先端は共に、組付時の位置合わせを容易にするために、テーパ状１１ｔ、１２ｔになっている。   As shown in FIG. 1 and FIG. 2, for example, the light guide plate as the first plate-like member 1 has a cylindrical first boss 11 and a second boss 12 that are provided to protrude by a predetermined distance. The first boss 11 and the second boss 12 have a length exceeding the thickness t ′ (see FIG. 3) of the second plate-like member 2 to which the first plate-like member 1 is fixed. The tips of the first boss 11 and the second boss 12 are both tapered 11t and 12t in order to facilitate alignment during assembly.

第１板状部材１は、第１ボス１１の側面において、第１板状部材１から第２板状部材の厚さｔ′（図３参照）に相当する長さｔだけ離間した箇所から第１ボス１１の先端まで第１板状部材１１と垂直方向に延びるリブ状に形成され、且つ、箇所を垂直断面とし、箇所から第１ボス１１の先端に向けて徐々に第１ボス１１の中心に向けて傾斜するテーパ状１１ａ１に形成された第１短尺凸部１１ａを有する。   The first plate-like member 1 is located on the side surface of the first boss 11 from a location separated from the first plate-like member 1 by a length t corresponding to the thickness t ′ (see FIG. 3) of the second plate-like member. The center of the first boss 11 is formed in a rib shape extending in the vertical direction to the first plate-like member 11 up to the front end of the first boss 11, and the part has a vertical cross section and gradually extends from the part toward the front end of the first boss 11. 1st short convex part 11a formed in taper shape 11a1 which inclines toward.

また、第１短尺凸部１１ａと反対側の第１ボス１１の側面において、第１板状部材１から第１ボス１１の先端まで第１板状部材１と垂直方向に延びるリブ状に形成され、且つ、先端部が第１ボス１１の中心に向けて傾斜するテーパ状１１ｂ１に形成された第１長尺凸部１１ｂを有する。   Further, on the side surface of the first boss 11 on the side opposite to the first short projection 11a, a rib is formed extending from the first plate member 1 to the tip of the first boss 11 in a direction perpendicular to the first plate member 1. And the front-end | tip part has the 1st elongate convex part 11b formed in the taper shape 11b1 which inclines toward the center of the 1st boss | hub 11. FIG.

また、第２ボス１２の側面において、第１板状部材１から第２板状部材の厚さｔ′（図３参照）に相当する長さだけ離間した箇所から第２ボス１２の先端まで第１板状部材１と垂直方向に延びるリブ状に形成され、且つ、上記箇所を垂直断面とし、上記箇所から第２ボス１２の先端に向けて徐々に第２ボス１２の中心に向けて傾斜するテーパ状１２ｄ１に形成された第２短尺凸部１２ｄを有する。   Further, on the side surface of the second boss 12, the first plate-like member 1 to the tip of the second boss 12 from a location separated by a length corresponding to the thickness t ′ (see FIG. 3) of the second plate-like member. 1 plate-like member 1 is formed in a rib shape extending in the vertical direction, and the above-mentioned part is a vertical cross section, and gradually inclines from the above part toward the tip of the second boss 12 toward the center of the second boss 12. It has the 2nd short convex part 12d formed in taper shape 12d1.

また、第２短尺凸部１２ｄと反対側の第２ボス１２の側面において、第１板状部材１から第２ボス１２の先端まで第１板状部材１と垂直方向に延びるリブ状に形成され、且つ、先端部が第２ボス１２の中心に向けて傾斜するテーパ状（不図示）に形成された第２長尺凸部１２ｃを有する。   Further, on the side surface of the second boss 12 opposite to the second short convex portion 12d, it is formed in a rib shape extending in the direction perpendicular to the first plate member 1 from the first plate member 1 to the tip of the second boss 12. And the front-end | tip part has the 2nd elongate convex part 12c formed in the taper shape (not shown) which inclines toward the center of the 2nd boss | hub 12.

更に、第２ボス１２の側面においては、上記第２短尺凸部１２ｄ及び第２長尺凸部１２ｃに加えて、第２長尺凸部１２ｃと同形状の第２長尺凸部１２ａ、１２ｂも有している。すなわち、第２長尺凸部１２ａ、１２ｂも、リブ状に形成され、且つ、テーパ状１２ａ１、１２ｂ１になっている。   Further, on the side surface of the second boss 12, in addition to the second short convex portion 12d and the second long convex portion 12c, second long convex portions 12a and 12b having the same shape as the second long convex portion 12c are provided. Also have. In other words, the second long convex portions 12a and 12b are also formed in a rib shape and are tapered 12a1 and 12b1.

一方、図３（Ａ）及び図３（Ｂ）に示すように、例えば、第２板状部材２としての計器ケースは、上記第１ボス１１の直径と同等の短径ｆの長円形状の第１貫通孔２１と、第２ボス１２の直径と同等の直径φｅの正円形状の第２貫通孔２２と、を有する。第１貫通孔２１及び第２貫通孔２２の開口部近傍も、組付時のボスの位置合わせを容易にするために、テーパ状２１ｔ、２２ｔになっている。   On the other hand, as shown in FIGS. 3A and 3B, for example, the instrument case as the second plate-like member 2 has an oval shape with a short diameter f equivalent to the diameter of the first boss 11. The first through hole 21 and the second through hole 22 having a perfect circular shape having a diameter φe equivalent to the diameter of the second boss 12 are provided. The vicinity of the opening portions of the first through hole 21 and the second through hole 22 are also tapered 21t and 22t in order to facilitate alignment of the boss during assembly.

なお、第１貫通孔２１及び第２貫通孔２２の中心距離は、上記第１ボス１１及び第２ボス１２の中心距離と同等になっている。また、第１貫通孔２１の短径は、上記第１短尺凸部１１ａ及び第１長尺凸部１１ｂを結ぶ線に平行になっている。   The center distance between the first through hole 21 and the second through hole 22 is equal to the center distance between the first boss 11 and the second boss 12. Moreover, the short diameter of the 1st through-hole 21 is parallel to the line | wire which connects the said 1st elongate convex part 11a and the 1st elongate convex part 11b.

上述のような構成の第１板状部材１と第２板状部材２とを組み付ける場合には、図４に示すように、第１短尺凸部１１ａ及び第１長尺凸部１１ｂを結ぶ線が第１貫通孔２１の短径に平行になるようにして、第１ボス１１を、図中矢印で示すように、第１貫通孔２１に圧入する。これと同時に、第２ボス１２も第２貫通孔２２に圧入する。このとき、第１ボス１１及び第２ボス１２の先端、第１貫通孔２１及び第２貫通孔２２の開口部近傍は、テーパ状になっているので位置合わせが容易である。また、各短尺凸部及び長尺凸部の先端もテーパ状になっているので圧入作業が容易である。   When assembling the first plate-like member 1 and the second plate-like member 2 configured as described above, as shown in FIG. 4, a line connecting the first short convex portion 11a and the first long convex portion 11b. The first boss 11 is press-fitted into the first through-hole 21 as indicated by an arrow in the drawing so that the first boss 11 is parallel to the short diameter of the first through-hole 21. At the same time, the second boss 12 is also press-fitted into the second through hole 22. At this time, the tips of the first boss 11 and the second boss 12 and the vicinity of the openings of the first through hole 21 and the second through hole 22 are tapered, so that the alignment is easy. In addition, the press-fitting operation is easy because the tips of the short convex portions and the long convex portions are also tapered.

また、圧入完了後には、第１短尺凸部１１ａ及び第２短尺凸部１２ｄの垂直断面が第２板状部材２に係合して、第１板状部材１と第２板状部材２とが確実に固着される。したがって、組立時の作業効率を低下させることなく、固着された２つの板状部材のガタツキ及び抜け落ちを確実に防止できる。   Further, after the press-fitting is completed, the vertical sections of the first short convex portion 11a and the second short convex portion 12d are engaged with the second plate member 2, and the first plate member 1 and the second plate member 2 Is securely fixed. Therefore, it is possible to reliably prevent rattling and falling off of the two fixed plate-like members without reducing the work efficiency during assembly.

なお、第１及び第２ボス、第１及び第２貫通孔の位置関係は上記とは逆にしてもよい。また、３つ以上のボス、貫通孔を設けるようにしてもよい。また、第１及び第２ボスの短尺凸部や長尺凸部の数を更に増やしてもよい。そうすると、更に確実にガタツキ及び抜け落ちを確実に防止できる。   The positional relationship between the first and second bosses and the first and second through holes may be reversed. Three or more bosses and through holes may be provided. Moreover, you may further increase the number of the short convex part and long convex part of a 1st and 2nd boss | hub. As a result, it is possible to reliably prevent rattling and falling off.

更に、図５を用いて板状部材を成形するための金型について説明する。図５は、本発明の一実施形態に係る金型を説明するための概略断面図である。周知のように、第１板状部材１としての導光板のような樹脂製品は、可動側金型３、固定側金型４及び押し出しピン５を用いて射出成形される。上述したように、ボスを有する板状部材を射出成形する際には、成形された板状部材が押し出しピンの付いてない固定側金型４に付着してしまうという問題が発生していた。   Furthermore, the metal mold | die for shape | molding a plate-shaped member is demonstrated using FIG. FIG. 5 is a schematic cross-sectional view for explaining a mold according to an embodiment of the present invention. As is well known, a resin product such as a light guide plate as the first plate-like member 1 is injection-molded using a movable side mold 3, a fixed side mold 4 and an extrusion pin 5. As described above, when the plate-like member having the boss is injection-molded, there is a problem that the formed plate-like member adheres to the fixed-side mold 4 without the extrusion pin.

これを防止するために、例えば、第１板状部材１の第１ボス１１及び第２ボス１２の側面にシボ加工３ａを施すように形成するための可動側金型３を本実施形態では用いる。そうすると、可動側金型３と第１ボス１１及び第２ボス１２との付着力が、固定側金型４と第１板状部材１の上面との付着力を勝り、第１板状部材１が、固定側金型４にくっついてしまうのを防止できる。なお、第１板状部材１が可動側金型３にくっついても、押し出しピン５により第１板状部材１が押し出されるので問題はない。   In order to prevent this, for example, the movable side mold 3 for forming the side surface of the first boss 11 and the second boss 12 of the first plate-like member 1 so as to be subjected to the texture 3a is used in this embodiment. . Then, the adhesive force between the movable die 3 and the first boss 11 and the second boss 12 is superior to the adhesive force between the fixed die 4 and the upper surface of the first plate member 1, and the first plate member 1. However, it can prevent sticking to the stationary mold 4. Even if the first plate member 1 sticks to the movable mold 3, there is no problem because the first plate member 1 is pushed out by the push pin 5.

以上説明したように、本発明の実施形態によれば、組立時の作業効率を低下させることなく、固着された２つの板状部材のガタツキ及び抜け落ちを確実に防止できる。特に、振動が多発する環境下にある車載計器に適用されてより効果的である。また、本発明の実施形態によれば、成形時に板状部材が固定側金型にくっついてしまうのを防止することができる。   As described above, according to the embodiment of the present invention, it is possible to reliably prevent rattling and falling off of the two fixed plate-like members without reducing the working efficiency during assembly. In particular, it is more effective when applied to an on-vehicle instrument in an environment where vibrations frequently occur. Moreover, according to the embodiment of the present invention, it is possible to prevent the plate-like member from sticking to the stationary mold during molding.

なお、本発明は上記実施形態に限定されず、その主旨の範囲内で種々の変更が可能である。例えば、第１及び第２ボス、第１及び第２貫通孔の位置関係は上記実施形態とは逆にしてもよい。また、３つ以上のボス、貫通孔を設けるようにしてもよい。また、第１及び第２ボスの短尺凸部や長尺凸部の数も適宜変更可能である。本発明は、これらの変形例も含むものである。   In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the main point. For example, the positional relationship between the first and second bosses and the first and second through holes may be reversed from the above embodiment. Three or more bosses and through holes may be provided. Moreover, the number of the short convex parts and the long convex parts of the first and second bosses can be appropriately changed. The present invention includes these modifications.

本発明の一実施形態に係り、ボスを有する側の板状部材を示す斜視図である。It is a perspective view which shows the plate-shaped member of the side which concerns on one Embodiment of this invention and has a boss | hub. 図１のボスをＸ方向からみたときの側面図及びその上面図である。It is the side view when the boss | hub of FIG. 1 is seen from X direction, and its top view. 図３（Ａ）及び図３（Ｂ）はそれぞれ、ボスが圧入される側の板状部材における貫通孔を示す上面図及び断面図である。FIGS. 3A and 3B are a top view and a cross-sectional view showing a through hole in a plate-like member on the side where the boss is press-fitted, respectively. 第１板状部材と第２板状部材との組み付けを説明するための図である。It is a figure for demonstrating the assembly | attachment of a 1st plate-shaped member and a 2nd plate-shaped member. 本発明の一実施形態に係る金型を説明するための概略断面図である。It is a schematic sectional drawing for demonstrating the metal mold | die which concerns on one Embodiment of this invention. 従来のボス構造を示す図である。It is a figure which shows the conventional boss structure.

符号の説明Explanation of symbols

１ 第１板状部材
２ 第２板状部材
１１ 第１ボス
１１ａ 第１短尺凸部
１１ｂ 第１長尺凸部
１２ 第２ボス
１２ｄ 第２短尺凸部
１２ｃ 第２長尺凸部
２１ 第１貫通孔
２２ 第２貫通孔 DESCRIPTION OF SYMBOLS 1 1st plate-shaped member 2 2nd plate-shaped member 11 1st boss | hub 11a 1st short convex part 11b 1st long convex part 12 2nd boss 12d 2nd short convex part 12c 2nd long convex part 21 1st penetration Hole 22 Second through hole

Claims (4)

第１板状部材と第２板状部材とを固着するボス構造であって、
前記第１板状部材に形成された、前記第２板状部材の厚さを超える長さを有する第１及び第２ボスと、
前記第２板状部材に形成された、前記第１ボスの直径と同等の短径を有する長円形状の第１貫通孔と、
前記第２板状部材に形成された、前記第２ボスの直径と同等の直径を有する正円形状の第２貫通孔と、
前記第１ボスの側面において、前記第１板状部材から前記第２板状部材の厚さに相当する長さだけ離間した箇所から前記第１ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、前記箇所を垂直断面とし、前記箇所から前記第１ボスの先端に向けて徐々に前記第１ボスの中心に向けて傾斜するテーパ状に形成された第１短尺凸部と、
前記第１短尺凸部と反対側の前記第１ボスの側面において、前記第１板状部材から前記第１ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、先端部が前記第１ボスの中心に向けて傾斜するテーパ状に形成された第１長尺凸部と、
前記第２ボスの側面において、前記第１板状部材から前記第２板状部材の厚さに相当する長さだけ離間した箇所から前記第２ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、前記箇所を垂直断面とし、前記箇所から前記第２ボスの先端に向けて徐々に前記第２ボスの中心に向けて傾斜するテーパ状に形成された第２短尺凸部と、
前記第２短尺凸部と反対側の前記第２ボスの側面において、前記第１板状部材から前記第２ボスの先端まで前記第１板状部材と垂直方向に延びるリブ状に形成され、且つ、先端部が前記第２ボスの中心に向けて傾斜するテーパ状に形成された第２長尺凸部と、を有し、
前記第１及び前記第２ボスの中心距離と、前記第１貫通孔及び前記第２貫通孔の中心距離と、は同等であり、
前記第１短尺凸部及び前記第１長尺凸部を結ぶ線は、前記第１貫通孔の短径に略平行である、
ことを特徴とするボス構造。 A boss structure for fixing the first plate member and the second plate member,
First and second bosses formed on the first plate member and having a length exceeding the thickness of the second plate member;
An oval first through hole formed in the second plate-like member and having a short diameter equivalent to the diameter of the first boss;
A second circular through hole formed in the second plate-like member and having a diameter equivalent to the diameter of the second boss;
On the side surface of the first boss, a direction perpendicular to the first plate-like member from a location separated from the first plate-like member by a length corresponding to the thickness of the second plate-like member to the tip of the first boss The first portion is formed in a rib shape extending in a straight line, and has a vertical cross section at the location, and is gradually tapered from the location toward the tip of the first boss toward the center of the first boss. Short projections,
On the side surface of the first boss opposite to the first short projection, the rib is formed in a rib shape extending in a direction perpendicular to the first plate member from the first plate member to the tip of the first boss, and A first elongated convex portion formed in a tapered shape with a tip portion inclined toward the center of the first boss;
On the side surface of the second boss, a direction perpendicular to the first plate-like member from a location spaced from the first plate-like member by a length corresponding to the thickness of the second plate-like member to the tip of the second boss A second rib formed in the shape of a rib extending in the direction and having a vertical cross section at the location, and gradually inclined from the location toward the tip of the second boss toward the center of the second boss. Short projections,
On the side surface of the second boss opposite to the second short protrusion, the rib is formed in a rib shape extending in a direction perpendicular to the first plate member from the first plate member to the tip of the second boss, and A second elongated convex portion formed in a tapered shape with a tip portion inclined toward the center of the second boss,
The center distance between the first and second bosses is equal to the center distance between the first through hole and the second through hole,
A line connecting the first short convex portion and the first long convex portion is substantially parallel to the short diameter of the first through hole.
Boss structure characterized by that. 請求項１記載のボス構造において、
前記第２ボスの側面において均等間隔に形成された、１つの前記第２短尺凸部と、３つの前記第２長尺凸部と、
を有することを特徴とするボス構造。 The boss structure according to claim 1,
One second short convex portion and three second long convex portions formed at equal intervals on a side surface of the second boss;
Boss structure characterized by having. 請求項１又は請求項２に記載のボス構造において、
前記第１板状部材は、車載計器に内蔵される導光板であり、
前記第２板状部材は、前記導光板が取り付けられる計器ケースである、
ことを特徴とするボス構造。 In the boss structure according to claim 1 or 2,
The first plate-like member is a light guide plate built in an in-vehicle instrument,
The second plate member is an instrument case to which the light guide plate is attached.
Boss structure characterized by that. 請求項１〜請求項３のいずれか一項に記載のボス構造を有する板状部材を成形するための金型であって、
前記第１ボス及び前記第２ボスの側面にシボ加工を施すように形成するための可動側金型、
を有することを特徴とする金型。 A mold for molding a plate-like member having the boss structure according to any one of claims 1 to 3,
A movable side mold for forming the side surfaces of the first boss and the second boss so as to be embossed;
A mold characterized by having.
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CN101451563B (en) * 2007-11-30 2010-12-08 广达电脑股份有限公司 Coupling device for flat sheet mould
US8610964B2 (en) 2010-06-30 2013-12-17 Brother Kogyo Kabushiki Kaisha Image forming apparatus having lateral cover with inwardly-dented handgrip
US9141074B2 (en) 2011-10-31 2015-09-22 Brother Kogyo Kabushiki Kaisha Image forming apparatus having side cover including finger receiving portion
JP2013237052A (en) * 2012-05-11 2013-11-28 Trumpf Kk Welding method by non-contact welding
JP2015101200A (en) * 2013-11-25 2015-06-04 株式会社ユーシン Electric steering lock device
JP2017017108A (en) * 2015-06-29 2017-01-19 株式会社ユーシン Component positioning structure
KR20190052317A (en) * 2017-11-08 2019-05-16 주식회사 서연이화 Coupling structure of automotive assembly parts
KR101990434B1 (en) 2017-11-08 2019-06-18 주식회사 서연이화 Coupling structure of automotive assembly parts

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