JP3104034U

JP3104034U - Magnetic head device

Info

Publication number: JP3104034U
Application number: JP2004001313U
Authority: JP
Inventors: 成金子
Original assignee: Funai Electric Co Ltd
Current assignee: Funai Electric Co Ltd
Priority date: 2004-03-16
Filing date: 2004-03-16
Publication date: 2004-09-02
Anticipated expiration: 2010-03-16

Abstract

【課題】加工費が安くて部品の歩留り率が良く組立ミスが生じないようにすること。
【解決手段】磁気ヘッド１，２を支持板３及び固定板４を介して支持する係合片７をシ
ャーシ１１の係合孔１３に係合させると共に、前記固定板４に一体形成した基板部８から
外方に突出する位置決め片１７の係合部１７Ｃをシャーシ１１の位置決め孔１２に係合さ
せ、シャーシ１１のねじ孔１４にねじ込んだビス１５の雄ねじ部１５ａの外周面をビス挿
通孔９の内側面に当接させることにより、位置決め片１７の中央部１７Ｂの両側縁１７ｂ
，１７ｃを位置決め孔１２の内側面に当接させる。
【選択図】図１
PROBLEM TO BE SOLVED: To provide a low processing cost and a good yield rate of parts so as to prevent an assembly error.
SOLUTION: An engaging piece 7 for supporting the magnetic heads 1 and 2 via a supporting plate 3 and a fixing plate 4 is engaged with an engaging hole 13 of a chassis 11, and a substrate portion integrally formed with the fixing plate 4. The engaging portion 17 </ b> C of the positioning piece 17 protruding outward from the positioning hole 8 is engaged with the positioning hole 12 of the chassis 11, and the outer peripheral surface of the male screw portion 15 a of the screw 15 screwed into the screw hole 14 of the chassis 11 is screwed into the screw insertion hole 9. By contacting the inner surface of the positioning piece 17, both side edges 17b of the central portion 17B of the positioning piece 17 are formed.
, 17c contact the inner surface of the positioning hole 12.
[Selection diagram] Fig. 1

Description

本考案は、例えば磁気テープ装置における音声消去及び音声・コントロール用の磁気ヘ
ッドを所定通りに簡単確実に位置決め固定することができるようにした磁気ヘッド装置に
関する。 The present invention relates to a magnetic head device capable of easily and securely positioning and fixing a magnetic head for voice erasing and voice / control in a magnetic tape device as predetermined.

従来、磁気ヘッド装置の技術として特許文献１などの記載したものがあり、その一例を
図８〜図１１に基づいて説明すると、これは、音声消去用磁気ヘッド１及び音声・コント
ロール用磁気ヘッド２を支持する支持板３と固定板４とが複数の調整ねじ５及び調整ばね
６により一体的に連結され、固定板４から略直角に折れ曲がる左右一対の脚部４ａ，４ｂ
が左右方向ａ，ｂに互いに所定間隔をおいて設けられ、その一方の脚部４ａの下端から略
Ｌ字状に折れ曲がって左右方向ａ，ｂとは直交する前後方向ｃ，ｄに沿って外方に突出す
る係合片７が設けられると共に、その他方の脚部４ｂの下端から略直角に折れ曲がって左
右方向ａ，ｂに沿って外方に突出する基板部８が設けられ、該基板部８の前後方向ｃ，ｄ
に沿って対向する一方端部にビス挿通孔９が貫設されその他方端部にバーリング加工によ
りリング状位置決め部１０が突設され、シャーシ１１に円形状位置決め孔１２、矩形状係
合孔１３及びねじ孔１４がそれぞれ形成され、前記位置決め部１０の外径ｈが位置決め孔
１２の内径Ｈよりもわずかに小さく設定されている。なお、ｔは磁気ヘッド１，２に当接
させた磁気テープである。 2. Description of the Related Art Conventionally, there is a technology of a magnetic head device described in Patent Document 1 or the like. One example of the technology will be described with reference to FIGS. And a fixed plate 4 are integrally connected by a plurality of adjusting screws 5 and adjusting springs 6, and a pair of right and left legs 4a, 4b bent from the fixed plate 4 at substantially right angles.
Are provided at a predetermined distance from each other in the left and right directions a and b, and are bent in a substantially L-shape from the lower end of one of the legs 4a to extend in the front and rear directions c and d orthogonal to the left and right directions a and b. An engaging piece 7 is provided to protrude to the right, and a board 8 is provided which bends at a substantially right angle from the lower end of the other leg 4b and protrudes outward along the left and right directions a and b. 8 front and rear direction c, d
A screw insertion hole 9 penetrates at one end opposite to the other, a ring-shaped positioning portion 10 is projected from the other end by burring, and a circular positioning hole 12 and a rectangular engagement hole 13 are formed in a chassis 11. And a screw hole 14 are formed, and the outer diameter h of the positioning portion 10 is set slightly smaller than the inner diameter H of the positioning hole 12. Here, t is a magnetic tape that is in contact with the magnetic heads 1 and 2.

磁気ヘッド１，２の位置決め手順を説明すると、係合片７を係合孔１３に嵌入させると
共に、位置決め部１０を位置決め孔１２に嵌入させ、ビス挿通孔９を通ってねじ孔１４に
ビス１５をねじ込んで基板部８をシャーシ１１に固定し、これによって、磁気ヘッド１，
２を前後左右方向ａ〜ｄに位置決めしてシャーシ１１上に固定する。
特開２００１−２３６６１７号公報 The positioning procedure of the magnetic heads 1 and 2 will be described. The engaging piece 7 is fitted into the engaging hole 13, the positioning part 10 is fitted into the positioning hole 12, and the screw 15 is inserted into the screw hole 14 through the screw insertion hole 9. Is screwed to fix the substrate unit 8 to the chassis 11, whereby the magnetic heads 1,
2 is positioned on the chassis 11 in the front, rear, left and right directions a to d.
JP 2001-236617 A

上記従来の構成では、位置決め部１０を垂直方向ｅ，ｆに沿って規制するものがないの
で、図１０（ｂ）に示すように、位置決め部１０が組立ミスにより位置決め孔１２から外
れ、それを目視検査で見過ごして不良品とされる場合がある。また、位置決め部１０の外
径ｈと位置決め孔１２の内径Ｈとがほぼ同じに設定されているから、その両者１０，１２
を精密に加工する必要があり、その精密加工に手間がかかって、加工費が高くつく。更に
、加工誤差により前記位置決め部１０の外径ｈがわずかに大きくなったり、位置決め孔１
２の内径Ｈがわずかに小さくなって、その位置決め部１０を位置決め孔１２内に嵌入させ
ることが困難になることがあり、部品の歩留り率が悪い。 In the above-described conventional configuration, there is nothing to restrict the positioning portion 10 along the vertical directions e and f. Therefore, as shown in FIG. 10B, the positioning portion 10 comes off the positioning hole 12 due to an assembly error, and the positioning portion 10 is removed. It may be overlooked in the visual inspection and become defective. Since the outer diameter h of the positioning portion 10 and the inner diameter H of the positioning hole 12 are set to be substantially the same,
Must be precisely processed, and the precision processing requires time and costs. Further, due to a processing error, the outer diameter h of the positioning portion 10 becomes slightly larger,
2 may have a slightly smaller inner diameter H, making it difficult to fit the positioning portion 10 into the positioning hole 12, resulting in a poor component yield.

本考案は、上記従来の欠点に鑑み、加工費が安くて部品の歩留り率が良く組立ミスが生
じないようにした磁気ヘッド装置を提供することを目的としている。 An object of the present invention is to provide a magnetic head device in which the processing cost is low, the yield rate of parts is high, and assembly errors do not occur in view of the above-mentioned conventional disadvantages.

上記目的を達成するため、請求項１に記載の考案は、音声消去及び音声・コントロール
用の磁気ヘッドを支持する支持板とシャーシに固定される固定板とが複数の調整ねじ及び
調整ばねにより一体的に連結され、前記固定板から略直角に折れ曲がる左右一対の脚部が
左右方向に互いに所定間隔をおいて設けられ、その一方の脚部の下端から略Ｌ字状に折れ
曲がって左右方向とは直交する前後方向に沿って外方に突出する係合片が設けられると共
に、その他方の脚部の下端から略直角に折れ曲がって左右方向に沿って外方に突出する基
板部が設けられ、該基板部の前後方向に沿って対向する一方端部にビス挿通孔が貫設され
その他方端部にリング状位置決め部が突設され、前記シャーシに円形状位置決め孔、係合
孔及びねじ孔がそれぞれ形成されており、前記係合片を係合孔に係合させると共に、前記
位置決め部を位置決め孔に嵌入させ、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで
前記基板部をシャーシに固定するようにした磁気ヘッド装置において、前記リング状位置
決め部に代えて、前記基板部の他方端部から前後方向に沿って外方に突出する後端部と、
該後端部の先端から下向きに略直角に折れ曲がる中央部と、該中央部の先端から略Ｌ字状
に折れ曲がって前後方向に沿って外方に突出する係合部とからなる弾性変位可能な位置決
め片が用いられ、前記係合部の先端縁と後端部の下面との間の間隔がシャーシの厚さより
も若干小さく設定され、前記ビスとしてビス軸体の全体に雄ねじ部を形成したものが用い
られており、前記係合片を係合孔に係合させると共に、前記位置決め片の係合部を位置決
め孔に係合させ、前記ねじ孔にねじ込んだビスの雄ねじ部の外周面をビス挿通孔の内側面
に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内側面に当接
させることを特徴としている。 In order to achieve the above object, the invention according to claim 1 is that the support plate for supporting the magnetic head for sound erasing and sound control and the fixing plate fixed to the chassis are integrated by a plurality of adjustment screws and adjustment springs. Are connected to each other, and a pair of left and right legs bent at a substantially right angle from the fixing plate are provided at a predetermined interval in the left and right direction, and are bent substantially in an L shape from the lower end of one of the legs to define the left and right direction. An engagement piece is provided that protrudes outwardly along the orthogonal front-rear direction, and a board part that is bent substantially at right angles from the lower end of the other leg and protrudes outwardly along the left-right direction is provided. A screw insertion hole is penetrated at one end facing the front and back of the board portion, and a ring-shaped positioning portion is protruded at the other end, and a circular positioning hole, an engagement hole, and a screw hole are formed in the chassis. Each formed And engaging the engaging piece with the engaging hole, fitting the positioning portion into the positioning hole, screwing a screw into a screw hole through the screw insertion hole, and fixing the substrate portion to the chassis. In the magnetic head device according to the above, instead of the ring-shaped positioning portion, a rear end portion protruding outward along the front-rear direction from the other end of the substrate portion,
An elastically displaceable central portion that is bent downward at a substantially right angle from the front end of the rear end portion, and an engaging portion that is bent substantially in an L shape from the front end of the central portion and protrudes outward in the front-rear direction. A positioning piece is used, a distance between a leading edge of the engaging portion and a lower surface of a rear end portion is set to be slightly smaller than a thickness of a chassis, and a male screw portion is formed on the entire screw shaft as the screw. The engaging piece is engaged with the engaging hole, the engaging portion of the positioning piece is engaged with the positioning hole, and the outer peripheral surface of the male screw portion of the screw screwed into the screw hole is screwed. By contacting the inner surface of the insertion hole, both side edges of the center of the positioning piece are brought into contact with the inner surface of the positioning hole.

請求項２に記載の考案は、音声消去及び音声・コントロール用の磁気ヘッドを支持する
支持板とシャーシに固定される固定板とが複数の調整ねじ及び調整ばねにより一体的に連
結され、前記固定板から略直角に折れ曲がる左右一対の脚部が左右方向に互いに所定間隔
をおいて設けられ、その一方の脚部の下端から略Ｌ字状に折れ曲がって左右方向とは直交
する前後方向に沿って外方に突出する係合片が設けられると共に、その他方の脚部の下端
から略直角に折れ曲がって左右方向に沿って外方に突出する基板部が設けられ、該基板部
の前後方向に沿って対向する一方端部にビス挿通孔が貫設されその他方端部にリング状位
置決め部が突設され、前記シャーシに円形状位置決め孔、係合孔及びねじ孔がそれぞれ形
成されており、前記係合片を係合孔に係合させると共に、前記位置決め部を位置決め孔に
嵌入させ、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固
定するようにした磁気ヘッド装置において、前記リング状位置決め部に代えて、前記基板
部の他方端部から前後方向に沿って外方に突出する後端部と、該後端部の先端から下向き
に略直角に折れ曲がる中央部と、該中央部の先端から略Ｌ字状に折れ曲がって前後方向に
沿って外方に突出する係合部とからなる弾性変位可能な位置決め片が用いられ、前記係合
部の先端縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定され、前
記ビスとしてビス軸体の上側に円柱部を形成しそのビス軸体の下側に雄ねじ部を形成した
ものが用いられており、前記係合片を係合孔に係合させると共に、前記位置決め片の係合
部を位置決め孔に係合させ、前記ねじ孔にねじ込んだビスの円柱部の外周面をビス挿通孔
の内側面に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内側
面に当接させることを特徴としている。 According to a second aspect of the present invention, the support plate for supporting the magnetic head for sound erasing and sound control and the fixed plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs, and A pair of left and right legs that bend at a substantially right angle from the plate are provided at a predetermined interval in the left and right direction, and are bent in a substantially L shape from the lower end of one of the legs along the front and rear direction orthogonal to the left and right direction. An engagement piece that protrudes outward is provided, and a board portion that is bent at a substantially right angle from the lower end of the other leg and protrudes outward along the left-right direction is provided, and extends along the front-rear direction of the board portion. A screw insertion hole is penetrated at one end facing the other, a ring-shaped positioning portion is protruded at the other end, and a circular positioning hole, an engagement hole and a screw hole are formed in the chassis, respectively. Engage engagement piece In the magnetic head device, the positioning portion is fitted into the positioning hole while being engaged with the hole, and a screw is screwed into a screw hole through the screw insertion hole to fix the substrate portion to a chassis. Instead of the positioning portion, a rear end protruding outwardly in the front-rear direction from the other end of the substrate portion, a center portion bent downward at a substantially right angle from the front end of the rear end portion, An elastically displaceable positioning piece comprising an engaging portion that is bent substantially in an L shape from the front end and protrudes outward along the front-rear direction is used. The interval between them is set slightly smaller than the thickness of the chassis, and the screw is formed by forming a cylindrical portion on the upper side of a screw shaft and forming a male screw portion on the lower side of the screw shaft. When the mating piece is engaged with the engaging hole The engaging portion of the positioning piece is engaged with the positioning hole, and the outer peripheral surface of the cylindrical portion of the screw screwed into the screw hole is brought into contact with the inner surface of the screw insertion hole, so that the central portion of the positioning piece is Are brought into contact with the inner surface of the positioning hole.

請求項３に記載の考案は、音声消去及び音声・コントロール用の磁気ヘッドを支持する
支持板とシャーシに固定される固定板とが複数の調整ねじ及び調整ばねにより一体的に連
結され、前記固定板から略直角に折れ曲がる左右一対の脚部が左右方向に互いに所定間隔
をおいて設けられ、その一方の脚部の下端から略Ｌ字状に折れ曲がって左右方向とは直交
する前後方向に沿って外方に突出する係合片が設けられると共に、その他方の脚部の下端
から略直角に折れ曲がって左右方向に沿って外方に突出する基板部が設けられ、該基板部
の前後方向に沿って対向する一方端部にビス挿通孔が貫設されその他方端部にリング状位
置決め部が突設され、前記シャーシに円形状位置決め孔、係合孔及びねじ孔がそれぞれ形
成されており、前記係合片を係合孔に係合させると共に、前記位置決め部を位置決め孔に
嵌入させ、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固
定するようにした磁気ヘッド装置において、前記リング状位置決め部に代えて、前記基板
部の他方端部から前後方向に沿って外方に突出する後端部と、該後端部の先端から下向き
に略直角に折れ曲がる中央部と、該中央部の先端から略Ｌ字状に折れ曲がって前後方向に
沿って外方に突出する係合部とからなる弾性変位可能な位置決め片が用いられ、前記係合
部の先端縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定され、前
記ビスとしてビス頭部を皿状に形成した皿ビスが用いられ、前記ビス挿通孔の上縁を面取
りしてテーパ面が形成されており、前記係合片を係合孔に係合させると共に、前記位置決
め片の係合部を位置決め孔に係合させ、前記ねじ孔にねじ込んだ皿ビスの頭部傾斜面をビ
ス挿通孔のテーパ面に当接させることにより、前記位置決め片の中央部の両側縁を位置決
め孔の内側面に当接させることを特徴としている。 According to a third aspect of the present invention, the support plate for supporting the magnetic head for sound erasing and sound control and the fixing plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs, and A pair of left and right legs that bend at a substantially right angle from the plate are provided at a predetermined interval in the left and right direction, and are bent in a substantially L shape from the lower end of one of the legs along the front and rear direction orthogonal to the left and right direction. An engagement piece that protrudes outward is provided, and a board portion that is bent at a substantially right angle from the lower end of the other leg and protrudes outward along the left-right direction is provided, and extends along the front-rear direction of the board portion. A screw insertion hole is penetrated at one end facing the other, a ring-shaped positioning portion is protruded at the other end, and a circular positioning hole, an engagement hole and a screw hole are formed in the chassis, respectively. Engage engagement piece In the magnetic head device, the positioning portion is fitted into the positioning hole while being engaged with the hole, and a screw is screwed into a screw hole through the screw insertion hole to fix the substrate portion to a chassis. Instead of the positioning portion, a rear end protruding outwardly in the front-rear direction from the other end of the substrate portion, a center portion bent downward at a substantially right angle from the front end of the rear end portion, An elastically displaceable positioning piece comprising an engaging portion which is bent substantially in an L-shape from the front end and protrudes outward along the front-rear direction is used, and a front edge of the engaging portion and a lower surface of a rear end portion are used. The gap between them is set slightly smaller than the thickness of the chassis, a countersunk screw having a screw head formed in a dish shape is used as the screw, and a tapered surface is formed by chamfering the upper edge of the screw insertion hole. Engaging the engagement piece with an engagement hole. At the same time, the engaging portion of the positioning piece is engaged with the positioning hole, and the head inclined surface of the countersunk screw screwed into the screw hole is brought into contact with the tapered surface of the screw insertion hole, so that the center of the positioning piece is It is characterized in that both side edges of the portion are brought into contact with the inner surface of the positioning hole.

請求項４に記載の考案は、磁気ヘッドを支持する支持板とシャーシに固定される固定板
とが複数の調整ねじ及び調整ばねにより一体的に連結され、前記固定板から略直角に折れ
曲がる左右一対の脚部のうち、その一方の脚部の下端から略Ｌ字状に折れ曲がって外方に
突出する係合片が設けられると共に、その他方の脚部の下端から略直角に折れ曲がって外
方に突出する基板部が設けられ、該基板部の一方端部にビス挿通孔が貫設されその他方端
部に位置決め部が設けられており、前記係合片及び位置決め部をシャーシに係合させ、前
記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固定するように
した磁気ヘッド装置において、前記位置決め部が、前記基板部の他方端部から外方に突出
する後端部と、該後端部の先端から下向きに略直角に折れ曲がる中央部と、該中央部の先
端から略Ｌ字状に折れ曲がって外方に突出する係合部とからなる弾性変位可能な位置決め
片からなり、前記シャーシの係合孔に係合片を係合させると共に、該シャーシの位置決め
孔に位置決め片の係合部を係合させ、前記ねじ孔にねじ込んだビスのビス軸体の外周面を
ビス挿通孔の内側面に当接させることにより、前記位置決め片の中央部の両側縁を位置決
め孔の内側面に当接させることを特徴としている。 According to another aspect of the present invention, a support plate for supporting the magnetic head and a fixed plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs, and a pair of right and left bent from the fixed plate at a substantially right angle. Of the legs, an engagement piece that is bent in a substantially L-shape from the lower end of one of the legs and protrudes outward is provided, and is bent at a substantially right angle from the lower end of the other leg to the outside. A protruding substrate portion is provided, a screw insertion hole is provided at one end of the substrate portion, and a positioning portion is provided at the other end, and the engaging piece and the positioning portion are engaged with the chassis, In a magnetic head device in which a screw is screwed into a screw hole through the screw insertion hole to fix the substrate to a chassis, the positioning portion has a rear end protruding outward from the other end of the substrate. Part and the tip of the rear end part An elastically displaceable positioning piece comprising a central portion bent downward at a substantially right angle downward from the tip of the central portion, and an engaging portion bent substantially in an L-shape from the end of the central portion and protruding outward. The engagement piece of the positioning piece is engaged with the positioning hole of the chassis, and the outer peripheral surface of the screw shaft body of the screw screwed into the screw hole is brought into contact with the inner surface of the screw insertion hole. By contacting, both side edges of the central portion of the positioning piece are brought into contact with the inner surface of the positioning hole.

請求項５に記載の考案は、請求項４に記載の考案において、前記位置決め片の係合部の
先端縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定されているこ
とを特徴としている。 According to a fifth aspect of the present invention, in the device according to the fourth aspect, an interval between a leading edge of the engaging portion of the positioning piece and a lower surface of the rear end is set to be slightly smaller than a thickness of a chassis. It is characterized by having.

請求項６に記載の発明は、請求項４または５に記載の考案において、前記ビスとしてビ
ス軸体の全体に雄ねじ部を形成したものが用いられており、ねじ孔にねじ込んだビスの雄
ねじ部の外周面をビス挿通孔の内側面に当接させることにより、位置決め片の中央部の両
側縁を位置決め孔の内側面に当接させることを特徴としている。 According to a sixth aspect of the present invention, in the device according to the fourth or fifth aspect, the screw is formed by forming an external thread portion on the entire screw shaft body, and the external thread portion of the screw screwed into the screw hole is used. By contacting the outer peripheral surface of the positioning piece with the inner surface of the screw insertion hole, both side edges of the center of the positioning piece are brought into contact with the inner surface of the positioning hole.

請求項７に記載の考案は、請求項４または５に記載の考案において、前記ビスとしてビ
ス軸体の上側に円柱部を形成しそのビス軸体の下側に雄ねじ部を形成したものが用いられ
ており、ねじ孔にねじ込んだビスの円柱部の外周面をビス挿通孔の内側面に当接させるこ
とにより、位置決め片の中央部の両側縁を位置決め孔の内側面に当接させることを特徴と
している。 According to a seventh aspect of the present invention, there is provided the device according to the fourth or fifth aspect, wherein the screw has a cylindrical portion formed above a screw shaft and a male screw portion formed below the screw shaft. By contacting the outer peripheral surface of the cylindrical portion of the screw screwed into the screw hole to the inner surface of the screw insertion hole, it is possible to make both side edges of the center of the positioning piece abut the inner surface of the positioning hole. Features.

請求項８に記載の考案は、請求項４または５に記載の考案において、前記ビスとしてビ
ス頭部を皿状に形成した皿ビスが用いられており、ねじ孔にねじ込んだ皿ビスの頭部傾斜
面をビス挿通孔の上縁に当接させることにより、位置決め片の中央部の両側縁を位置決め
孔の内側面に当接させることを特徴としている。 The invention according to claim 8 is the invention according to claim 4 or 5, wherein a countersunk screw having a screw head formed in a dish shape is used as the screw, and the head of the countersunk screw screwed into a screw hole. By making the inclined surface contact the upper edge of the screw insertion hole, both side edges of the center of the positioning piece are brought into contact with the inner surface of the positioning hole.

請求項９に記載の考案は、請求項８に記載の考案において、前記ビス挿通孔の上縁を面
取りしてテーパ面が形成されており、ねじ孔にねじ込んだ皿ビスの頭部傾斜面をテーパ面
に当接させるようにしたことを特徴としている。 According to a ninth aspect of the present invention, in the device according to the eighth aspect, a tapered surface is formed by chamfering an upper edge of the screw insertion hole, and a head inclined surface of a countersunk screw screwed into a screw hole is formed. It is characterized in that it comes into contact with the tapered surface.

請求項１０記載の考案は、請求項１〜９のいずれかに記載の考案において、前記位置決
め孔の内側面に２つの傾斜面が所定の対向角度をおいて略Ｖ字状に形成されており、その
両傾斜面に位置決め片の中央部の両側縁を当接させるようにしたことを特徴としている。 According to a tenth aspect of the present invention, in the device according to any one of the first to ninth aspects, two inclined surfaces are formed in a substantially V-shape at a predetermined opposing angle on an inner surface of the positioning hole. The two side surfaces at the center of the positioning piece are brought into contact with the two inclined surfaces.

請求項１に記載の考案は第１の実施の形態（図１〜図４）に対応するものであって、こ
れによれば、位置決め片の係合部を位置決め孔に係合させ、ねじ孔にねじ込んだビスの雄
ねじ部の外周面をビス挿通孔の内側面に当接させることにより、前記位置決め片の中央部
の両側縁を位置決め孔の内側面に当接させ、その三角形を形成する３つの当接点で基板部
を３点支持して、磁気ヘッドを所定通りに位置決め固定するものであって、この場合、前
記位置決め片に比べて位置決め孔の内径を大きく設定することができるから、その位置決
め片及び位置決め孔を従来のように精密に加工する必要がなく、加工費が安くつくと共に
、前記位置決め片を位置決め孔に容易に嵌入させることができ、部品の歩留り率も向上す
る。また、係合部を位置決め孔に係合させることにより、位置決め片の垂直方向への移動
が規制されるから、その位置決め片が組立ミスにより位置決め孔から外れて不良品とされ
るのを防ぐことができる。 The invention according to claim 1 corresponds to the first embodiment (FIGS. 1 to 4). According to this, the engaging portion of the positioning piece is engaged with the positioning hole, and the screw hole is formed. By contacting the outer peripheral surface of the male screw portion of the screw screwed into the inner surface of the screw insertion hole, the both side edges of the center portion of the positioning piece are brought into contact with the inner surface of the positioning hole to form a triangle. The substrate portion is supported at three points by the two contact points, and the magnetic head is positioned and fixed in a predetermined manner. In this case, the inner diameter of the positioning hole can be set larger than that of the positioning piece. There is no need to precisely process the positioning piece and the positioning hole as in the related art, and the processing cost is reduced, and the positioning piece can be easily fitted into the positioning hole, and the yield rate of parts is also improved. In addition, since the vertical movement of the positioning piece is restricted by engaging the engaging portion with the positioning hole, it is possible to prevent the positioning piece from being detached from the positioning hole due to an assembly error and becoming a defective product. Can be.

また、位置決め片の係合部の先端縁と後端部の下面との間の間隔がシャーシの厚さより
も若干小さく設定されており、係合部を位置決め孔に係合させることにより、該係合部の
先端縁がシャーシの下面に押し付けられて弾性変位されるから、その弾性変位により生じ
た押下力で基板部を浮き上がらないようにシャーシの上面に密着させて、磁気ヘッドを垂
直方向に位置ずれしないように所定通りに位置決めすることができる。 Further, the distance between the leading edge of the engaging portion of the positioning piece and the lower surface of the rear end is set slightly smaller than the thickness of the chassis. Since the leading edge of the joint is pressed against the lower surface of the chassis and is elastically displaced, the magnetic head is positioned in the vertical direction by closely adhering to the upper surface of the chassis so that the pressing force generated by the elastic displacement does not lift the substrate. Positioning can be performed as predetermined so as not to shift.

ここで特に、ビスとしてビス軸体の全体に雄ねじ部を形成した市販の安価なビスを用い
ることができ、これによって、製作費を一層安くすることができる。 Here, in particular, a commercially available inexpensive screw in which a male screw portion is formed on the entire screw shaft body can be used as the screw, and thus the manufacturing cost can be further reduced.

請求項２に記載の考案は、第２の実施の形態（図５参照）を示すものであって、請求項
１に記載の考案とほぼ同様の効果を得ることができ、特に、ビス軸体の上側に形成した円
柱部をビス挿通孔の内側面に当接させるようになっているから、基板部を安定的に３点支
持することができる。 The invention according to claim 2 shows the second embodiment (see FIG. 5), and can obtain substantially the same effect as the invention according to claim 1, particularly, a screw shaft body. The cylindrical portion formed on the upper side of the substrate is brought into contact with the inner surface of the screw insertion hole, so that the substrate portion can be stably supported at three points.

請求項３に記載の考案は、第３の実施の形態（図６参照）を示すものであって、請求項
１に記載の考案とほぼ同様の効果を得ることができ、特に、皿ビスの頭部傾斜面をビス挿
通孔の上縁に形成したテーパ面に当接させて基板部を位置決め片側に押圧し、その押圧力
で位置決め片の中央部の両側縁を位置決め孔の内側面に押し付けるから、該基板部を３方
向から挟み付けて所定通りに確実に位置決め固定することができ、しかも、前記テーパ面
により皿ビスの頭部傾斜面とビス挿通孔との当接範囲を広げているから、基板部を位置決
め片側に一層確実に押圧することができる。 The device according to the third aspect shows the third embodiment (see FIG. 6), and can obtain substantially the same effect as the device according to the first aspect. The inclined surface of the head is brought into contact with the tapered surface formed on the upper edge of the screw insertion hole, and the substrate is pressed to the positioning side, and the pressing force presses both side edges of the central portion of the positioning piece against the inner surface of the positioning hole. Therefore, the substrate portion can be sandwiched from three directions and securely positioned and fixed in a predetermined manner, and the tapered surface extends the contact area between the inclined surface of the head of the countersunk screw and the screw insertion hole. Accordingly, it is possible to more reliably press the substrate portion toward one side of the positioning.

請求項４に記載の考案は基本形態を示すものであって、これによれば、位置決め片の係
合部を位置決め孔に係合させ、ねじ孔にねじ込んだビスのビス軸体の外周面をビス挿通孔
の内側面に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内側
面に当接させ、その三角形を形成する３つの当接点で基板部を３点支持して、磁気ヘッド
を所定通りに位置決め固定するものであって、この場合、前記位置決め片に比べて位置決
め孔の内径を大きく設定することができるから、その位置決め片及び位置決め孔を従来の
ように精密に加工する必要がなく、加工費が安くつくと共に、前記位置決め片を位置決め
孔に容易に嵌入させることができ、部品の歩留り率も向上する。また、係合部を位置決め
孔に係合させることにより、位置決め片の垂直方向への移動が規制されるから、その位置
決め片が組立ミスにより位置決め孔から外れて不良品とされるのを防ぐことができる。 The invention according to claim 4 shows a basic form, according to which the engaging portion of the positioning piece is engaged with the positioning hole, and the outer peripheral surface of the screw shaft body of the screw screwed into the screw hole is formed. By contacting the inner surface of the screw insertion hole, both side edges of the central portion of the positioning piece are brought into contact with the inner surface of the positioning hole, and the substrate portion is supported at three points by three contact points forming the triangle. In this case, the magnetic head is positioned and fixed in a predetermined manner. In this case, since the inner diameter of the positioning hole can be set to be larger than that of the positioning piece, the positioning piece and the positioning hole can be precisely formed as in the related art. This eliminates the need for machining, reduces the machining cost, allows the positioning pieces to be easily fitted into the positioning holes, and improves the yield of parts. In addition, since the vertical movement of the positioning piece is restricted by engaging the engaging portion with the positioning hole, it is possible to prevent the positioning piece from being detached from the positioning hole due to an assembly error and becoming a defective product. Can be.

請求項５に記載の考案によれば、位置決め片の係合部の先端縁と後端部の下面との間の
間隔がシャーシの厚さよりも若干小さく設定されており、係合部を位置決め孔に係合させ
ることにより、該係合部の先端縁がシャーシの下面に押し付けられて弾性変位されるから
、その弾性変位により生じた押下力で基板部を浮き上がらないようにシャーシの上面に密
着させて、磁気ヘッドを垂直方向に位置ずれしないように所定通りに位置決めすることが
できる。 According to the invention as set forth in claim 5, the distance between the front edge of the engaging portion of the positioning piece and the lower surface of the rear end is set to be slightly smaller than the thickness of the chassis. The front edge of the engaging portion is pressed against the lower surface of the chassis and elastically displaced, so that the substrate portion is brought into close contact with the upper surface of the chassis so as not to be lifted by the pressing force generated by the elastic displacement. Thus, the magnetic head can be positioned in a predetermined manner so as not to be displaced in the vertical direction.

請求項６に記載の考案によれば、ビスとしてビス軸体の全体に雄ねじ部を形成した市販
の安価なビスを用いることができ、これによって、製作費を一層安くすることができる。 According to the invention described in claim 6, a commercially available inexpensive screw having a male screw portion formed on the entire screw shaft body can be used as the screw, and thus the manufacturing cost can be further reduced.

請求項７に記載の考案によれば、ビス軸体の上側に形成した円柱部をビス挿通孔の内側
面に当接させるようになっているから、基板部を安定的に３点支持することができる。 According to the invention as set forth in claim 7, since the cylindrical portion formed on the upper side of the screw shaft is brought into contact with the inner surface of the screw insertion hole, the substrate portion is stably supported at three points. Can be.

請求項８に記載の考案によれば、皿ビスの頭部傾斜面をビス挿通孔の上縁に当接させて
基板部を位置決め片側に押圧し、その押圧力で位置決め片の中央部の両側縁を位置決め孔
の内側面に押し付けるから、該基板部を３方向から挟み付けて所定通りに確実に位置決め
固定することができる。 According to the invention as set forth in claim 8, the inclined surface of the head of the countersunk screw is brought into contact with the upper edge of the screw insertion hole to press the substrate portion toward one side of the positioning, and the pressing force is used to press both sides of the central portion of the positioning piece. Since the edge is pressed against the inner surface of the positioning hole, the substrate portion can be sandwiched from three directions and can be reliably positioned and fixed in a predetermined manner.

請求項９に記載の考案によれば、テーパ面により皿ビスの頭部傾斜面とビス挿通孔との
当接範囲を広げているから、基板部を位置決め片側に一層確実に押圧することができる。 According to the invention as set forth in claim 9, the contact area between the head inclined surface of the countersunk screw and the screw insertion hole is widened by the tapered surface, so that the substrate portion can be more reliably pressed to the positioning one side. .

請求項１０に記載の考案によれば、位置決め孔の内側面に略Ｖ字状に形成した両傾斜面
に対して位置決め片の中央部の両側縁を食い込むように当接させるので、その２つの当接
点で基板部を確実に押さえることができる。 According to the invention as set forth in claim 10, the two side edges of the center portion of the positioning piece are brought into contact with both inclined surfaces formed in a substantially V-shape on the inner surface of the positioning hole. The contact portion can securely press the substrate.

図１〜図４は本考案の第１の実施の形態である磁気ヘッド装置を示すものであって、基
板部８の他方端部から前後方向ｃ，ｄに沿って外方に突出する後端部１７Ａと、該後端部
１７Ａの先端から下向きに略直角に折れ曲がる中央部１７Ｂと、該中央部１７Ｂの先端か
ら略Ｌ字状に折れ曲がって前後方向ｃ，ｄに沿って外方に斜め上方に突出する係合部１７
Ｃとからなる弾性変位可能な位置決め片（位置決め部）１７が設けられ、前記係合部１７
Ｃの先端縁１７ａと後端部１７Ａの下面との間の間隔ｔがシャーシ１１の厚さＴよりも若
干小さく設定され（図２参照）、位置決め片１７に対向してシャーシ１１に該位置決め片
１７よりも内径Ｈを大きく設定した位置決め孔１２が形成され、ビス１５としてビス軸体
１５Ａの全体に雄ねじ部１５ａを形成したものが用いられている。上記以外の構成は図８
〜図１１に示す構成とほぼ同じであるので、同一部分に同一符号を付してその説明を省略
する。 FIGS. 1 to 4 show a magnetic head device according to a first embodiment of the present invention, in which a rear end protruding outward from the other end of a substrate portion 8 along the front and rear directions c and d. Part 17A, a central part 17B bent downward at a substantially right angle from the front end of the rear end part 17A, and a substantially L-shaped bent part from the front end of the central part 17B to obliquely upward outward in the front-rear directions c and d. Engaging portion 17 protruding from
C, a resiliently displaceable positioning piece (positioning portion) 17 comprising:
The distance t between the front edge 17a of C and the lower surface of the rear end 17A is set slightly smaller than the thickness T of the chassis 11 (see FIG. 2). A positioning hole 12 having an inner diameter H larger than 17 is formed, and a screw 15 having a male screw portion 15a formed on the entire screw shaft body 15A is used. The configuration other than the above is shown in FIG.
11 are almost the same as those shown in FIG. 11, the same parts are denoted by the same reference numerals, and description thereof will be omitted.

磁気ヘッド１，２の位置決め手順を説明すると、係合片７を係合孔１３に係合させると
共に、位置決め片１７の係合部１７Ｃを位置決め孔１２に係合させ、ねじ孔１４にねじ込
んだビス１５の雄ねじ部１５ａの外周面をビス挿通孔９の内側面に当接（Ｅ１）させるこ
とにより（図４参照）、位置決め片１７の中央部１７Ｂの両側縁１７ｂ，１７ｃを位置決
め孔１２の内側面に当接（Ｅ２，Ｅ３）させ、これによって、磁気ヘッド１，２を前後左
右方向ａ〜ｄ及び垂直方向ｅ，ｆに位置決めしてシャーシ１１上に固定する。 The positioning procedure of the magnetic heads 1 and 2 will be described. The engaging pieces 7 are engaged with the engaging holes 13, and the engaging portions 17 C of the positioning pieces 17 are engaged with the positioning holes 12 and screwed into the screw holes 14. By making the outer peripheral surface of the male screw portion 15a of the screw 15 abut (E1) on the inner surface of the screw insertion hole 9 (see FIG. 4), both side edges 17b and 17c of the central portion 17B of the positioning piece 17 are formed. The magnetic heads 1 and 2 are brought into contact with the inner side surfaces (E2 and E3), whereby the magnetic heads 1 and 2 are positioned and fixed on the chassis 11 in the front-back and left-right directions a to d and the vertical directions e and f.

上記構成によれば、三角形Ｄを形成する３つの当接点Ｅ１〜Ｅ３で基板部を３点支持し
て、磁気ヘッドを所定通りに位置決め固定しており、この場合、位置決め片１７に比べて
位置決め孔１２の内径Ｈを大きく設定することができるから、その位置決め片１７及び位
置決め孔１２を従来のように精密に加工する必要がなく、加工費が安くつくと共に、前記
位置決め片１７を位置決め孔１２に容易に嵌入させることができ、部品の歩留り率も向上
する。また、係合部１７Ｃを位置決め孔１２に係合させることにより、位置決め片１７の
垂直方向ｅ，ｆへの移動が規制されるから、その位置決め片１７が組立ミスにより位置決
め孔１２から外れて不良品とされるのを防ぐことができる。 According to the above configuration, the substrate portion is supported at three points by the three contact points E1 to E3 forming the triangle D, and the magnetic head is positioned and fixed in a predetermined manner. Since the inner diameter H of the hole 12 can be set large, the positioning piece 17 and the positioning hole 12 do not need to be machined precisely as in the prior art. And the yield of parts can be improved. Further, since the movement of the positioning piece 17 in the vertical directions e and f is regulated by engaging the engaging portion 17C with the positioning hole 12, the positioning piece 17 is not disengaged from the positioning hole 12 due to an assembly error. Good products can be prevented.

また、係合部１７Ｃを位置決め孔１２に係合させることにより、該係合部１７Ｃの先端
縁１７ａがシャーシ１１の下面に押し付けられて弾性変位されるから、その弾性変位によ
り生じた押下力Ｆ１で基板部８を浮き上がらないようにシャーシ１１の上面に密着させて
、磁気ヘッド１，２を垂直方向ｅ，ｆに位置ずれしないように所定通りに位置決めするこ
とができる。更に、係合片７及び位置決め片１７が同じ方向（ｃ）に突出されているので
、その両者７，１７をシャーシ１１に容易に係合させることができる。 Further, by engaging the engaging portion 17C with the positioning hole 12, the distal end edge 17a of the engaging portion 17C is pressed against the lower surface of the chassis 11 and elastically displaced. Therefore, the pressing force F1 generated by the elastic displacement. The magnetic heads 1 and 2 can be positioned in a predetermined manner so as not to be displaced in the vertical directions e and f by bringing the substrate portion 8 into close contact with the upper surface of the chassis 11 so as not to float. Further, since the engaging piece 7 and the positioning piece 17 are projected in the same direction (c), the two pieces 7 and 17 can be easily engaged with the chassis 11.

ここで特に、ビス１５としてビス軸体１５Ａの全体に雄ねじ部１５ａを形成した市販の
安価なビスを用いることができ、これによって、製作費を一層安くすることができる。 Here, in particular, a commercially available inexpensive screw in which the male screw portion 15a is formed on the entire screw shaft body 15A can be used as the screw 15, and the manufacturing cost can be further reduced.

図５は本考案の第２の実施の形態である磁気ヘッド装置の要部を示すものであって、ビ
ス１５としてビス軸体１５Ａの上側に円柱部１５ｂを形成しそのビス軸体１５Ａの下側に
雄ねじ部１５ａを形成したものが用いられており、位置決め片１７の係合部１７Ｃを位置
決め孔１２に係合させ、ねじ孔１４にねじ込んだビス１５の円柱部１５ｂの外周面をビス
挿通孔９の内側面に当接（Ｅ１）させることにより、位置決め片１７の中央部１７Ｂの両
側縁１７ｂ，１７ｃを位置決め孔１２の内側面に当接（Ｅ２、Ｅ３）させている。上記以
外の構成は第１の実施の形態（図１〜図４）とほぼ同じであるから、同一部分に同一符号
を付して、その説明を省略する。 FIG. 5 shows a main part of a magnetic head device according to a second embodiment of the present invention, in which a cylindrical portion 15b is formed above a screw shaft 15A as a screw 15 and a screw 15 is formed below the screw shaft 15A. A male screw portion 15a is formed on the side, and the engaging portion 17C of the positioning piece 17 is engaged with the positioning hole 12, and the outer peripheral surface of the cylindrical portion 15b of the screw 15 screwed into the screw hole 14 is inserted. By contacting the inner surface of the hole 9 (E1), both side edges 17b and 17c of the central portion 17B of the positioning piece 17 are in contact with the inner surface of the positioning hole 12 (E2, E3). Since the configuration other than the above is substantially the same as that of the first embodiment (FIGS. 1 to 4), the same portions are denoted by the same reference numerals and description thereof will be omitted.

上記構成によれば、第１の実施の形態とほぼ同様の効果を得ることができ、特に、ビス
軸体１５Ａの上側に形成した円柱部１５ｂをビス挿通孔９の内側面に当接（Ｅ１）させる
ようになっているから、基板部８を安定的に３点支持することができる。 According to the above configuration, substantially the same effect as that of the first embodiment can be obtained. In particular, the cylindrical portion 15b formed on the upper side of the screw shaft 15A abuts on the inner side surface of the screw insertion hole 9 (E1). ), The substrate portion 8 can be stably supported at three points.

図６は本考案の第３の実施の形態である磁気ヘッド装置の要部を示すものであって、ビ
ス１５としてビス頭部１５Ｂを皿状に形成した皿ビスが用いられ、ビス挿通孔９の上縁を
面取りしてテーパ面９ａが形成されており、位置決め片１７の係合部１７Ｃを位置決め孔
１２に係合させ、ねじ孔１４にねじ込んだ皿ビス１５の頭部傾斜面１５ｃをビス挿通孔９
のテーパ面９ａに当接（Ｅ１）させることにより、位置決め片１７の中央部１７Ｂの両側
縁１７ｂ，１７ｃを位置決め孔１２の内側面に当接（Ｅ２、Ｅ３）させている。上記以外
の構成は第１の実施の形態（図１〜図４）とほぼ同じであるから、同一部分に同一符号を
付して、その説明を省略する。 FIG. 6 shows a main part of a magnetic head device according to a third embodiment of the present invention, in which a countersunk screw having a screw head 15B formed in a dish shape is used as the screw 15, and a screw insertion hole 9 is provided. The upper edge is chamfered to form a tapered surface 9a. The engaging portion 17C of the positioning piece 17 is engaged with the positioning hole 12, and the head inclined surface 15c of the countersunk screw 15 screwed into the screw hole 14 is screwed. Insertion hole 9
By contacting the tapered surface 9a of the positioning piece 17 (E1), both side edges 17b and 17c of the central portion 17B of the positioning piece 17 are brought into contact with the inner surface of the positioning hole 12 (E2, E3). Since the configuration other than the above is substantially the same as that of the first embodiment (FIGS. 1 to 4), the same portions are denoted by the same reference numerals and description thereof will be omitted.

上記構成によれば、第１の実施の形態とほぼ同様の効果を得ることができ、特に、皿ビ
ス１５の頭部傾斜面１５ｃをビス挿通孔９の上縁に形成したテーパ面９ａに当接（Ｅ１）
させて基板部８を位置決め片１７に押圧し、その押圧力Ｆ２で位置決め片１７の中央部１
７Ｂの両側縁１７ｂ，１７ｃを位置決め孔１２の内側面に押し付けて当接（Ｅ２、Ｅ３）
させるから、該基板部８を３方向から挟み付けて所定通りに確実に位置決め固定すること
ができ、しかも、テーパ面９ａにより皿ビス１５の頭部傾斜面１５ｃとビス挿通孔９との
当接範囲を広げているから、基板部８を位置決め片１７側に一層確実に押圧することがで
きる。 According to the above configuration, substantially the same effects as those of the first embodiment can be obtained. In particular, the inclined surface 15c of the head of the countersunk screw 15 is applied to the tapered surface 9a formed on the upper edge of the screw insertion hole 9. Contact (E1)
Then, the substrate 8 is pressed against the positioning piece 17, and the pressing force F <b> 2 causes the central portion 1 of the positioning piece 17 to be pressed.
7B presses both side edges 17b and 17c against the inner surface of positioning hole 12 to make contact (E2, E3)
Accordingly, the substrate portion 8 can be sandwiched from three directions and securely positioned and fixed in a predetermined manner, and the tapered surface 9a makes contact between the head inclined surface 15c of the countersunk screw 15 and the screw insertion hole 9. Since the range is widened, the substrate portion 8 can be more reliably pressed against the positioning piece 17 side.

上記の各実施の形態では、位置決め孔１２を円形に形成したが、これに限定されるわけ
ではなく、図７に示すように、位置決め孔１２を例えば平面視五角形とし、該位置決め孔
１２の内側面に２つの傾斜面１２ａを略Ｖ字状に形成し、その両傾斜面１２ａに位置決め
片１７の中央部１７Ｂの両側縁１７ｂ，１７ｃを当接（Ｅ２、Ｅ３）させるようにしても
よい（第４の実施の形態）。 In each of the above embodiments, the positioning holes 12 are formed in a circular shape. However, the present invention is not limited to this. As shown in FIG. Two inclined surfaces 12a may be formed in a substantially V-shape on the side surface, and both side edges 17b, 17c of the central portion 17B of the positioning piece 17 may be brought into contact with the two inclined surfaces 12a (E2, E3) ( Fourth embodiment).

上記構成によれば、位置決め孔１２の内側面に略Ｖ字状に形成した両傾斜面１２ａに対
して位置決め片１７の中央部１７Ｂの両側縁１７ｂ，１７ｃを食い込むように当接（Ｅ２
、Ｅ３）させるので、その２つの当接点Ｅ２，Ｅ３で基板部８を確実に押さえることがで
きる。 According to the above configuration, both sides 17b and 17c of the central portion 17B of the positioning piece 17 abut against both inclined surfaces 12a formed in a substantially V-shape on the inner surface of the positioning hole 12 (E2).
, E3), the substrate portion 8 can be reliably pressed by the two contact points E2, E3.

本考案の第１の実施の形態である磁気ヘッド装置を示す平面図である。FIG. 2 is a plan view showing the magnetic head device according to the first embodiment of the present invention. 図１のＡ−Ａ矢視図である。It is the AA arrow line view of FIG. 同分解斜視図である。FIG. （ａ）は同要部の平面図、（ｂ）は同要部の縦断面図である。(A) is a plan view of the main part, and (b) is a longitudinal sectional view of the main part. （ａ）は本考案の第２の実施の形態である磁気ヘッド装置の要部を示す平面図、（ｂ）は同要部の縦断面図である。(A) is a plan view showing a main part of a magnetic head device according to a second embodiment of the present invention, and (b) is a longitudinal sectional view of the main part. （ａ）は本考案の第３の実施の形態である磁気ヘッド装置の要部を示す平面図、（ｂ）は同要部の縦断面図、（ｃ）は同要部の一部切り欠き斜視図である。(A) is a plan view showing a main part of a magnetic head device according to a third embodiment of the present invention, (b) is a longitudinal sectional view of the main part, and (c) is a partial cutout of the main part. It is a perspective view. 本考案の第４の実施の形態である磁気ヘッド装置の要部を示す斜視図である。FIG. 9 is a perspective view showing a main part of a magnetic head device according to a fourth embodiment of the present invention. 従来例を示す平面図である。It is a top view which shows a prior art example. 図８のＢ−Ｂ矢視図である。FIG. 9 is a view taken along the line BB in FIG. 8. （ａ）は図８のＣ−Ｃ矢視図、（ｂ）は同組立ミス状態の縦断面図である。(A) is a view on arrow CC in FIG. 8, and (b) is a longitudinal sectional view of the same assembly error state. 同分解斜視図である。FIG.

符号の説明Explanation of reference numerals

１，２磁気ヘッド
３支持板
４固定板
４ａ，４ｂ脚部
５調整ねじ
６調整ばね
７係合片
８基板部
９ビス挿通孔
９ａビス挿通孔のテーパ面
１０リング状位置決め部
１１シャーシ
１２位置決め孔
１２ａ位置決め孔の傾斜面
１３係合孔
１４ねじ孔
１５ビス
１５Ａビス軸体
１５Ｂビス頭部
１５ａ雄ねじ部
１５ｂ円柱部
１５ｃ頭部傾斜面
１７位置決め片（位置決め部）
１７Ａ位置決め片の後端部
１７Ｂ位置決め片の中央部
１７Ｃ位置決め片の係合部
１７ａ係合部の先端縁
１７ｂ，１７ｃ中央部の側縁
ａ，ｂ左右方向
ｃ，ｄ前後方向 Reference numerals 1 and 2 Magnetic head 3 Support plate 4 Fixing plate 4a, 4b Leg 5 Adjusting screw 6 Adjusting spring 7 Engagement piece 8 Substrate 9 Screw insertion hole 9a Tapered surface of screw insertion hole 10 Ring-shaped positioning portion 11 Chassis 12 Positioning hole 12a Inclined surface of positioning hole 13 Engagement hole 14 Screw hole 15 Screw 15A Screw shaft 15B Screw head 15a Male screw portion 15b Cylindrical portion 15c Head inclined surface 17 Positioning piece (positioning portion)
17A Rear end of positioning piece 17B Central part of positioning piece 17C Engagement part of positioning piece 17a Front edge of engagement part 17b, 17c Side edge of central part a, b Left and right direction c, d Front and rear direction

Claims

音声消去及び音声・コントロール用の磁気ヘッドを支持する支持板と
シャーシに固定される固定板とが複数の調整ねじ及び調整ばねにより一体的に連結され、
前記固定板から略直角に折れ曲がる左右一対の脚部が左右方向に互いに所定間隔をおいて
設けられ、その一方の脚部の下端から略Ｌ字状に折れ曲がって左右方向とは直交する前後
方向に沿って外方に突出する係合片が設けられると共に、その他方の脚部の下端から略直
角に折れ曲がって左右方向に沿って外方に突出する基板部が設けられ、該基板部の前後方
向に沿って対向する一方端部にビス挿通孔が貫設されその他方端部にリング状位置決め部
が突設され、前記シャーシに円形状位置決め孔、係合孔及びねじ孔がそれぞれ形成されて
おり、前記係合片を係合孔に係合させると共に、前記位置決め部を位置決め孔に嵌入させ
、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固定するよ
うにした磁気ヘッド装置において、前記リング状位置決め部に代えて、前記基板部の他方
端部から前後方向に沿って外方に突出する後端部と、該後端部の先端から下向きに略直角
に折れ曲がる中央部と、該中央部の先端から略Ｌ字状に折れ曲がって前後方向に沿って外
方に突出する係合部とからなる弾性変位可能な位置決め片が用いられ、前記係合部の先端
縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定され、前記ビスと
してビス軸体の全体に雄ねじ部を形成したものが用いられており、前記係合片を係合孔に
係合させると共に、前記位置決め片の係合部を位置決め孔に係合させ、前記ねじ孔にねじ
込んだビスの雄ねじ部の外周面をビス挿通孔の内側面に当接させることにより、前記位置
決め片の中央部の両側縁を位置決め孔の内側面に当接させることを特徴とする磁気ヘッド
装置。 A support plate supporting a magnetic head for voice erasing and voice / control and a fixing plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs,
A pair of left and right legs bent at a substantially right angle from the fixing plate are provided at a predetermined interval in the left and right direction, and are bent in a substantially L shape from the lower end of one of the legs in the front and rear direction orthogonal to the left and right direction. An engagement piece that protrudes outwardly is provided along with a board part that is bent at a substantially right angle from the lower end of the other leg and protrudes outwardly in the left-right direction. A screw insertion hole penetrates at one end facing along, a ring-shaped positioning portion protrudes at the other end, and a circular positioning hole, an engagement hole, and a screw hole are respectively formed in the chassis. The engaging piece is engaged with the engaging hole, the positioning portion is fitted into the positioning hole, and a screw is screwed into a screw hole through the screw insertion hole to fix the substrate portion to the chassis. For magnetic head devices Instead of the ring-shaped positioning portion, a rear end protruding outward from the other end of the substrate portion along the front-rear direction, and a central portion bent downward at a substantially right angle from the front end of the rear end. An elastically displaceable positioning piece comprising an engaging portion which is bent substantially in an L shape from the front end of the central portion and protrudes outward in the front-rear direction is used, and a front end edge and a rear end of the engaging portion are used. The gap between the screw shaft and the lower surface is set to be slightly smaller than the thickness of the chassis, and the screw is formed by forming a male screw portion on the entire screw shaft body, and the engaging piece is engaged with the engaging hole. At the same time, the engaging portion of the positioning piece is engaged with the positioning hole, and the outer peripheral surface of the male screw portion of the screw screwed into the screw hole is brought into contact with the inner surface of the screw insertion hole, whereby the positioning piece is Center both side edges against the inner surface of the positioning hole The magnetic head device, characterized in that.

音声消去及び音声・コントロール用の磁気ヘッドを支持する支持板と
シャーシに固定される固定板とが複数の調整ねじ及び調整ばねにより一体的に連結され、
前記固定板から略直角に折れ曲がる左右一対の脚部が左右方向に互いに所定間隔をおいて
設けられ、その一方の脚部の下端から略Ｌ字状に折れ曲がって左右方向とは直交する前後
方向に沿って外方に突出する係合片が設けられると共に、その他方の脚部の下端から略直
角に折れ曲がって左右方向に沿って外方に突出する基板部が設けられ、該基板部の前後方
向に沿って対向する一方端部にビス挿通孔が貫設されその他方端部にリング状位置決め部
が突設され、前記シャーシに円形状位置決め孔、係合孔及びねじ孔がそれぞれ形成されて
おり、前記係合片を係合孔に係合させると共に、前記位置決め部を位置決め孔に嵌入させ
、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固定するよ
うにした磁気ヘッド装置において、前記リング状位置決め部に代えて、前記基板部の他方
端部から前後方向に沿って外方に突出する後端部と、該後端部の先端から下向きに略直角
に折れ曲がる中央部と、該中央部の先端から略Ｌ字状に折れ曲がって前後方向に沿って外
方に突出する係合部とからなる弾性変位可能な位置決め片が用いられ、前記係合部の先端
縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定され、前記ビスと
してビス軸体の上側に円柱部を形成しそのビス軸体の下側に雄ねじ部を形成したものが用
いられており、前記係合片を係合孔に係合させると共に、前記位置決め片の係合部を位置
決め孔に係合させ、前記ねじ孔にねじ込んだビスの円柱部の外周面をビス挿通孔の内側面
に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内側面に当接
させることを特徴とする磁気ヘッド装置。 A support plate supporting a magnetic head for voice erasing and voice / control and a fixing plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs,
A pair of left and right legs bent at a substantially right angle from the fixing plate are provided at a predetermined interval in the left and right direction, and are bent in a substantially L shape from the lower end of one of the legs in the front and rear direction orthogonal to the left and right direction. An engagement piece that protrudes outwardly is provided along with a board part that is bent at a substantially right angle from the lower end of the other leg and protrudes outwardly in the left-right direction. A screw insertion hole penetrates at one end facing along, a ring-shaped positioning portion protrudes at the other end, and a circular positioning hole, an engagement hole, and a screw hole are respectively formed in the chassis. The engaging piece is engaged with the engaging hole, the positioning portion is fitted into the positioning hole, and a screw is screwed into a screw hole through the screw insertion hole to fix the substrate portion to the chassis. For magnetic head devices Instead of the ring-shaped positioning portion, a rear end protruding outward from the other end of the substrate portion along the front-rear direction, and a central portion bent downward at a substantially right angle from the front end of the rear end. An elastically displaceable positioning piece comprising an engaging portion which is bent substantially in an L shape from the front end of the central portion and protrudes outward in the front-rear direction is used, and a front end edge and a rear end of the engaging portion are used. The gap between the lower surface of the portion is set slightly smaller than the thickness of the chassis, and a screw is used in which a cylindrical portion is formed on the upper side of the screw shaft and a male screw portion is formed on the lower side of the screw shaft. The engaging piece is engaged with the engaging hole, the engaging portion of the positioning piece is engaged with the positioning hole, and the outer peripheral surface of the cylindrical portion of the screw screwed into the screw hole is inserted into the screw insertion hole. By contacting the inner surface, both sides of the center of the positioning piece The magnetic head device for causing contact with the inner surface of the positioning hole of the.

音声消去及び音声・コントロール用の磁気ヘッドを支持する支持板と
シャーシに固定される固定板とが複数の調整ねじ及び調整ばねにより一体的に連結され、
前記固定板から略直角に折れ曲がる左右一対の脚部が左右方向に互いに所定間隔をおいて
設けられ、その一方の脚部の下端から略Ｌ字状に折れ曲がって左右方向とは直交する前後
方向に沿って外方に突出する係合片が設けられると共に、その他方の脚部の下端から略直
角に折れ曲がって左右方向に沿って外方に突出する基板部が設けられ、該基板部の前後方
向に沿って対向する一方端部にビス挿通孔が貫設されその他方端部にリング状位置決め部
が突設され、前記シャーシに円形状位置決め孔、係合孔及びねじ孔がそれぞれ形成されて
おり、前記係合片を係合孔に係合させると共に、前記位置決め部を位置決め孔に嵌入させ
、前記ビス挿通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固定するよ
うにした磁気ヘッド装置において、前記リング状位置決め部に代えて、前記基板部の他方
端部から前後方向に沿って外方に突出する後端部と、該後端部の先端から下向きに略直角
に折れ曲がる中央部と、該中央部の先端から略Ｌ字状に折れ曲がって前後方向に沿って外
方に突出する係合部とからなる弾性変位可能な位置決め片が用いられ、前記係合部の先端
縁と後端部の下面との間の間隔がシャーシの厚さよりも若干小さく設定され、前記ビスと
してビス頭部を皿状に形成した皿ビスが用いられ、前記ビス挿通孔の上縁を面取りしてテ
ーパ面が形成されており、前記係合片を係合孔に係合させると共に、前記位置決め片の係
合部を位置決め孔に係合させ、前記ねじ孔にねじ込んだ皿ビスの頭部傾斜面をビス挿通孔
のテーパ面に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内
側面に当接させることを特徴とする磁気ヘッド装置。 A support plate supporting a magnetic head for voice erasing and voice / control and a fixing plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs,
A pair of left and right legs bent at a substantially right angle from the fixing plate are provided at a predetermined interval in the left and right direction, and are bent in a substantially L shape from the lower end of one of the legs in the front and rear direction orthogonal to the left and right direction. An engagement piece that protrudes outwardly is provided along with a board part that is bent at a substantially right angle from the lower end of the other leg and protrudes outwardly in the left-right direction. A screw insertion hole penetrates at one end facing along, a ring-shaped positioning portion protrudes at the other end, and a circular positioning hole, an engagement hole, and a screw hole are respectively formed in the chassis. The engaging piece is engaged with the engaging hole, the positioning portion is fitted into the positioning hole, and a screw is screwed into a screw hole through the screw insertion hole to fix the substrate portion to the chassis. For magnetic head devices Instead of the ring-shaped positioning portion, a rear end protruding outward from the other end of the substrate portion along the front-rear direction, and a central portion bent downward at a substantially right angle from the front end of the rear end. An elastically displaceable positioning piece comprising an engaging portion which is bent substantially in an L shape from the front end of the central portion and protrudes outward in the front-rear direction is used, and a front end edge and a rear end of the engaging portion are used. The distance between the lower surface of the portion is set slightly smaller than the thickness of the chassis, a countersunk screw having a screw head formed in a dish shape is used as the screw, and a tapered surface is formed by chamfering the upper edge of the screw insertion hole. The engaging piece is engaged with the engaging hole, the engaging portion of the positioning piece is engaged with the positioning hole, and the head inclined surface of the flathead screw screwed into the screw hole is screwed. By contacting the tapered surface of the insertion hole, The magnetic head device which is characterized in that is brought into contact with both side edges of the parts to the inner surface of the positioning hole.

磁気ヘッドを支持する支持板とシャーシに固定される固定板とが複数
の調整ねじ及び調整ばねにより一体的に連結され、前記固定板から略直角に折れ曲がる左
右一対の脚部のうち、その一方の脚部の下端から略Ｌ字状に折れ曲がって外方に突出する
係合片が設けられると共に、その他方の脚部の下端から略直角に折れ曲がって外方に突出
する基板部が設けられ、該基板部の一方端部にビス挿通孔が貫設されその他方端部に位置
決め部が設けられており、前記係合片及び位置決め部をシャーシに係合させ、前記ビス挿
通孔を通ってねじ孔にビスをねじ込んで前記基板部をシャーシに固定するようにした磁気
ヘッド装置において、前記位置決め部が、前記基板部の他方端部から外方に突出する後端
部と、該後端部の先端から下向きに略直角に折れ曲がる中央部と、該中央部の先端から略
Ｌ字状に折れ曲がって外方に突出する係合部とからなる弾性変位可能な位置決め片からな
り、前記シャーシの係合孔に係合片を係合させると共に、該シャーシの位置決め孔に位置
決め片の係合部を係合させ、前記ねじ孔にねじ込んだビスのビス軸体の外周面をビス挿通
孔の内側面に当接させることにより、前記位置決め片の中央部の両側縁を位置決め孔の内
側面に当接させることを特徴とする磁気ヘッド装置。 A support plate supporting the magnetic head and a fixed plate fixed to the chassis are integrally connected by a plurality of adjustment screws and adjustment springs, and one of a pair of right and left legs bent substantially at right angles from the fixed plate. An engagement piece that is bent in a substantially L shape from the lower end of the leg and protrudes outward is provided, and a substrate that bends at a substantially right angle from the lower end of the other leg and protrudes outward is provided. A screw insertion hole is provided at one end of the substrate portion, and a positioning portion is provided at the other end.The engagement piece and the positioning portion are engaged with a chassis, and a screw hole is inserted through the screw insertion hole. A magnetic head device in which the substrate is fixed to a chassis by screwing a screw into the chassis, wherein the positioning portion has a rear end protruding outward from the other end of the substrate, and a front end of the rear end. Folds downward at approximately right angles An elastically displaceable positioning piece composed of a central portion that is bent and an engaging portion that is bent substantially in an L shape from the tip of the central portion and protrudes outward, and the engaging piece is inserted into an engaging hole of the chassis. By engaging the engaging portion of the positioning piece with the positioning hole of the chassis and making the outer peripheral surface of the screw shaft body of the screw screwed into the screw hole abut the inner surface of the screw insertion hole, A magnetic head device, wherein both side edges of a center portion of the positioning piece are brought into contact with an inner surface of a positioning hole.

前記位置決め片の係合部の先端縁と後端部の下面との間の間隔がシャ
ーシの厚さよりも若干小さく設定されていることを特徴とする請求項４に記載の磁気ヘッ
ド装置。 5. The magnetic head device according to claim 4, wherein an interval between a front edge of the engaging portion of the positioning piece and a lower surface of the rear end is set slightly smaller than a thickness of the chassis.

前記ビスとしてビス軸体の全体に雄ねじ部を形成したものが用いられ
ており、ねじ孔にねじ込んだビスの雄ねじ部の外周面をビス挿通孔の内側面に当接させる
ことにより、位置決め片の中央部の両側縁を位置決め孔の内側面に当接させることを特徴
とする請求項４または５に記載の磁気ヘッド装置。 As the screw, one having a male screw portion formed on the entire screw shaft body is used, and by contacting the outer peripheral surface of the male screw portion of the screw screwed into the screw hole with the inner surface of the screw insertion hole, the positioning piece is formed. 6. The magnetic head device according to claim 4, wherein both side edges of the central portion are in contact with the inner side surface of the positioning hole.

前記ビスとしてビス軸体の上側に円柱部を形成しそのビス軸体の下側
に雄ねじ部を形成したものが用いられており、ねじ孔にねじ込んだビスの円柱部の外周面
をビス挿通孔の内側面に当接させることにより、位置決め片の中央部の両側縁を位置決め
孔の内側面に当接させることを特徴とする請求項４または５に記載の磁気ヘッド装置。 A screw having a cylindrical portion formed on the upper side of the screw shaft and a male screw portion formed on the lower side of the screw shaft is used as the screw, and an outer peripheral surface of the cylindrical portion of the screw screwed into the screw hole is used as a screw insertion hole. 6. The magnetic head device according to claim 4, wherein both side edges of the central portion of the positioning piece are brought into contact with the inner surface of the positioning hole by contacting the inner surface of the positioning piece.

前記ビスとしてビス頭部を皿状に形成した皿ビスが用いられており、
ねじ孔にねじ込んだ皿ビスの頭部傾斜面をビス挿通孔の上縁に当接させることにより、位
置決め片の中央部の両側縁を位置決め孔の内側面に当接させることを特徴とする請求項４
または５に記載の磁気ヘッド装置。 A dish screw with a screw head formed in a dish shape is used as the screw,
By contacting the inclined surface of the head of the countersunk screw screwed into the screw hole with the upper edge of the screw insertion hole, both side edges of the center of the positioning piece are brought into contact with the inner surface of the positioning hole. Item 4
Or the magnetic head device according to 5.

前記ビス挿通孔の上縁を面取りしてテーパ面が形成されており、ねじ
孔にねじ込んだ皿ビスの頭部傾斜面をテーパ面に当接させるようにしたことを特徴とする
請求項８に記載の磁気ヘッド装置。 The tapered surface is formed by chamfering an upper edge of the screw insertion hole, and a head inclined surface of a countersunk screw screwed into a screw hole is brought into contact with the tapered surface. The magnetic head device according to the above.

前記位置決め孔の内側面に２つの傾斜面が所定の対向角度をおいて
略Ｖ字状に形成されており、その両傾斜面に位置決め片の中央部の両側縁を当接させるよ
うにしたことを特徴とする請求項１〜９のいずれかに記載の磁気ヘッド装置。
Two inclined surfaces are formed in a substantially V-shape at a predetermined opposing angle on the inner surface of the positioning hole, and both side surfaces of the center of the positioning piece are brought into contact with both inclined surfaces. The magnetic head device according to claim 1, wherein: