JPS6245886Y2 - - Google Patents
Info
- Publication number
- JPS6245886Y2 JPS6245886Y2 JP10328280U JP10328280U JPS6245886Y2 JP S6245886 Y2 JPS6245886 Y2 JP S6245886Y2 JP 10328280 U JP10328280 U JP 10328280U JP 10328280 U JP10328280 U JP 10328280U JP S6245886 Y2 JPS6245886 Y2 JP S6245886Y2
- Authority
- JP
- Japan
- Prior art keywords
- bush
- groove
- resin
- bushing
- molded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Bolts, Nuts, And Washers (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulding By Coating Moulds (AREA)
Description
【考案の詳細な説明】
本案は樹脂成形品に係り、特にインサート用ブ
ツシユに関するものである。[Detailed Description of the Invention] The present invention relates to a resin molded product, and particularly to a bush for an insert.
樹脂成形品をねじ止め又は加締めで固定する場
合、直接樹脂を固定するとクリープを生じるた
め、一般にブツシユをインサート成形する。更に
成形されたブツシユは、回つたり抜けたりしない
ように抜け止め回り止め構造とする。 When fixing a resin molded product by screwing or caulking, the bushing is generally insert molded because creep occurs if the resin is directly fixed. Furthermore, the molded bush has a locking structure to prevent it from turning or coming off.
第１，２図は従来からの樹脂成形品である内燃
機関用配電器を示している。 Figures 1 and 2 show a conventional power distribution device for an internal combustion engine that is a resin molded product.
配電器ハウジング１の、下部に固定ベース２が
固定されている。この固定ベース２には、スチー
ルボール３を介し、回動可能に可動ベース４が、
設けられている。この可動ベース４には、ハウジ
ング１に、取付けられている負圧応動装置５の、
継手２２が連結されている。 A fixed base 2 is fixed to the lower part of the power distributor housing 1. A movable base 4 is rotatably connected to the fixed base 2 via a steel ball 3.
It is provided. A negative pressure response device 5 attached to the housing 1 is attached to the movable base 4.
A joint 22 is connected.
固定ベース２上には、制御回路部７を有する、
点火時期制御ユニツト８が、スペーサ９を介し
て、ねじ１０により取付けられている。一方可動
ベース４上には、マグネツト１１、ステータコア
１２が非磁性体のねじ１３により締付固定されて
いる。制御回路部７は、検出コイル１４及び該検
出コイル１４に生じる電圧を増幅するICや点火
コイルの一次側をスイツチングするパワートラン
ジスタ等を含んでいる。 A control circuit section 7 is provided on the fixed base 2.
An ignition timing control unit 8 is attached with screws 10 via spacers 9. On the other hand, a magnet 11 and a stator core 12 are fastened and fixed on the movable base 4 by screws 13 made of non-magnetic material. The control circuit section 7 includes a detection coil 14, an IC that amplifies the voltage generated in the detection coil 14, a power transistor that switches the primary side of the ignition coil, and the like.
点火時期制御ユニツト８は、前記検出コイル１
４及び締付用ブツシユ１５並びに端子を樹脂成形
一体化し、これに制御回路部７を、接着固定して
形成されている。 The ignition timing control unit 8 includes the detection coil 1
4, the tightening bush 15, and the terminal are integrally formed by resin molding, and the control circuit section 7 is adhesively fixed thereto.
一方エンジンにより駆動されるシヤフト１６に
はロータシヤフト１７が遊嵌され、シヤフト１６
に対してロータシヤフト１７が回動する。このロ
ータシヤフト１７にはリラクター１８が一体化さ
れて回転するため、検出コイル１４に発生する電
圧信号により点火コイルの一次側をスイツチング
する。ロータシヤフト１７には、ロータヘツド１
９が取付けられ、点火コイルの二次側に発生した
高電圧はこのロータヘツド１９によりキヤツプ３
８を介し各気筒に配電される。キヤツプ３８はそ
の頂部中央に中心電極２８が配置され、頂部外周
部には側電極２９が配置され、更に、これらのも
のと、外側面に設けられたブツシユ２０が一体的
に樹脂成形されている。またキヤツプ３８はハウ
ジング１のねじ穴２１にねじ２２により取付けら
れている。 On the other hand, a rotor shaft 17 is loosely fitted into the shaft 16 driven by the engine.
The rotor shaft 17 rotates relative to this. Since a reluctor 18 is integrated with the rotor shaft 17 and rotates, the primary side of the ignition coil is switched by a voltage signal generated in the detection coil 14. The rotor shaft 17 has a rotor head 1
9 is attached, and the high voltage generated on the secondary side of the ignition coil is transferred to the cap 3 by this rotor head 19.
Power is distributed to each cylinder via 8. A center electrode 28 is arranged at the center of the top of the cap 38, a side electrode 29 is arranged at the outer periphery of the top, and these and a bush 20 provided on the outer surface are integrally molded with resin. . Further, the cap 38 is attached to the screw hole 21 of the housing 1 with a screw 22.
ブツシユ１５を樹脂成形一体化した点火時期制
御ユニツト８、及びブツシユ２０を樹脂成形一体
化したキヤツプ３８は強固に固定されてその機能
を発揮するものである。このためブツシユ１５，
２０は第３図に示すように、外周にローレツト部
２３を設け、中央部には凹部２４が形成されてい
る。 The ignition timing control unit 8, in which the bush 15 is integrally molded with resin, and the cap 38, in which the bush 20 is integrally molded with resin, are firmly fixed to perform their functions. For this reason, Bushu 15,
20, as shown in FIG. 3, has a knurled portion 23 on its outer periphery and a recessed portion 24 in its center.
ところが、この第３図で示した従来形のブツシ
ユはローレツト部２３が中央の凹部２４の加工が
必要なので製作コストが高くなる欠点がある。 However, the conventional bushing shown in FIG. 3 has the drawback that the knurled portion 23 requires machining of the recessed portion 24 in the center, which increases the manufacturing cost.
又、第４図や第５図のように、外周面３１と内
周面３０を完全に連通させる連通穴を少なくとも
１個設けたプレス成形のブツシユは、ブツシユを
樹脂にインサート成形する際、樹脂が連通穴を介
して内周面に入り込むため、ブツシユ単品製作コ
ストは第３図品に比較して低いが、成形作業性が
悪くトータル的にコスト高となる欠点があつた。
その他の例としては、例えば米国特許No.3145324
が知られている。 In addition, as shown in FIGS. 4 and 5, press-molded bushes with at least one communication hole that completely communicates the outer circumferential surface 31 and the inner circumferential surface 30, when insert molding the bush in resin, Since the material enters the inner circumferential surface through the communicating hole, the manufacturing cost of the bushing itself is lower than that of the product shown in Figure 3, but it has the disadvantage of poor molding workability and higher overall cost.
Other examples include, for example, U.S. Patent No. 3145324
It has been known.
本案の目的は上記の欠点に鑑み、安価な樹脂成
形品のブツシユを提供するにある。 In view of the above-mentioned drawbacks, the object of the present invention is to provide an inexpensive resin molded bushing.
本案により、上記の目的は、ブツシユの外周面
に、くぼみや溝を少なくとも１個又は１ケ所設け
ることにより達成される。 According to the present invention, the above object is achieved by providing at least one depression or groove on the outer peripheral surface of the bush.
以下、本案に係る実施例を図面に従つて説明す
る。但し各図において同一あるいは同様の構成部
分は同一符号を用いて示してある。 Embodiments of the present invention will be described below with reference to the drawings. However, in each figure, the same or similar components are indicated using the same reference numerals.
第７〜第１１図は本案に係る樹脂成形品のブツ
シユの第１，第２，第３，第４，第５の実施例を
示すものである。 7 to 11 show first, second, third, fourth, and fifth embodiments of the resin molded bushings according to the present invention.
第７図は第１の実施例を示すもので、円筒状の
ブツシユ３９には、その外周面に連続的に溝３２
が設けられている。４０は板材の両端部をカール
してブツシユ３２を形成した時の合せ目であり、
最近の技術の進歩から、合せ目４０のすき間は零
とすることができる。溝３２はブツシユ３９の外
周面にらせん状に設けられているので成形型のピ
ンに上記ブツシユ３９を挿入し成形すると樹脂は
らせん状溝３２に入り込み、ブツシユ３９は、回
らず抜けないよう強固に一体化される。 FIG. 7 shows a first embodiment, in which a cylindrical bush 39 has continuous grooves 32 on its outer circumferential surface.
is provided. 40 is the seam when the both ends of the plate material are curled to form the bush 32;
Due to recent advances in technology, the gap at seam 40 can be reduced to zero. The groove 32 is provided in a spiral shape on the outer circumferential surface of the bush 39, so when the bush 39 is inserted into the pin of the molding die and molded, the resin enters the spiral groove 32, and the bush 39 is firmly secured so that it does not rotate or fall out. be integrated.
なお、らせん状溝３２は、溝３２に深さの差が
場所によつてあれば、水平（θ＝０）状に溝３２
が設けられていても同じ効果を奏する。 Note that if the spiral groove 32 has a difference in depth depending on the location, the groove 32 may be formed horizontally (θ=0).
The same effect can be achieved even if .
第８図は第２の実施例を示すもので、円筒状の
プレス形成式ブツシユ３９の外周にくぼみ３３を
少なくとも１個設けたものである。くぼみ３３は
外周面と内周面との間に連通していない特徴があ
る。第９図は第３の実施例を示すものでプレス成
形ブツシユ３９の合せ目４０に溝３４（らせん状
のもの、但し溝３４の深さに浅いところがあれば
中心軸に平行でも同じ効果である）を設けてい
る。第１０図は第４の実施例を示すものでプレス
成形ブツシユ３９の外周面に連続的でない溝３５
を設けたものである。第１１図は第５の実施例を
示すもので、合せ目４０の一部に溝やくぼみ３６
を設けたものである。この場合溝３７に浅いとこ
ろがあれば３６のくぼみ（溝）がなくとも同じ効
果である。 FIG. 8 shows a second embodiment, in which at least one depression 33 is provided on the outer periphery of a cylindrical press-formed bush 39. The recess 33 is characterized in that there is no communication between the outer circumferential surface and the inner circumferential surface. FIG. 9 shows a third embodiment, in which a groove 34 (spiral type) is formed at the seam 40 of a press-formed bushing 39. However, if the depth of the groove 34 is shallow, the same effect can be obtained even if it is parallel to the central axis. ) has been established. FIG. 10 shows a fourth embodiment, in which a groove 35 that is not continuous is formed on the outer peripheral surface of a press-formed bushing 39.
It has been established. FIG. 11 shows a fifth embodiment, in which a groove or recess 36 is formed in a part of the seam 40.
It has been established. In this case, as long as the groove 37 has a shallow part, the same effect can be obtained even without the depression (groove) 36.
又、溝３２，３４，３５，３７やくぼみ３３，
３６の形状は特に限定しない。すなわち第１２図
に於いて、３１を外周面、３０を内周面側とする
と第１２−１の４１のような断面形状でも、又第
１２−２の４２のようなものでも要は内周面３０
と外周面３１を連通しない溝やくぼみであればど
んなものでもよい。 Also, grooves 32, 34, 35, 37 and depressions 33,
The shape of 36 is not particularly limited. In other words, in Fig. 12, if 31 is the outer peripheral surface and 30 is the inner peripheral surface, even if the cross-sectional shape is 41 in 12-1 or 42 in 12-2, the essential point is the inner periphery. Face 30
Any groove or depression that does not communicate with the outer circumferential surface 31 may be used.
尚、実施例として配電器の点火時期制御ユニツ
トとキヤツプについて説明したが、ねじや加締め
鋲等で固定する樹脂成形製品、例えば点火コイ
ル、各種バルブ類等全てに適用し得ることは言う
までもない。 Although the ignition timing control unit and cap of a power distributor have been described as examples, it goes without saying that the present invention can be applied to all resin molded products fixed with screws, rivets, etc., such as ignition coils, various valves, etc.
以上、本案によれば、外周面の溝やくぼみはプ
レス成形式ブツシユのブランク材圧延時や連続マ
ルチフオーミング成形時に同時に素材に形成でき
るので、回らず抜けにくい安価な樹脂成形品のブ
ツシユを提供できる。 As described above, according to the present invention, the grooves and depressions on the outer peripheral surface can be formed in the material at the same time when blank material is rolled for press-formed bushings or during continuous multi-forming molding, thereby providing inexpensive resin-molded bushings that do not rotate and do not easily fall out. can.
第１図は配電器のキヤツプとロータを除外した
場合の平面図、第２図は配電器の縦断面図、第３
図は従来形のブツシユの一部断面正面図、第４図
と第５図は従来形ブツシユの斜視図、第６図は、
第４図と第５図の連通穴の一部断面図、第７図か
ら第１１図までは、本案に係る樹脂成形品のブツ
シユの具体的実施例を示す斜視図、第１２図は本
案の溝やくぼみの断面図である。
１５，２０，３９……ブツシユ、３２，３４，
３５，３７……溝、３３，４１，４２，３６……
くぼみ。
Figure 1 is a plan view of the power distributor excluding the cap and rotor, Figure 2 is a longitudinal sectional view of the power distributor, and Figure 3 is a vertical cross-sectional view of the power distributor.
The figure is a partially sectional front view of a conventional bushing, FIGS. 4 and 5 are perspective views of a conventional bushing, and FIG. 6 is a front view of a conventional bushing.
FIGS. 4 and 5 are partial cross-sectional views of the communicating holes, FIGS. 7 to 11 are perspective views showing specific examples of the bushing of the resin molded product according to the present invention, and FIG. FIG. 3 is a cross-sectional view of grooves and depressions. 15, 20, 39...butsuyu, 32, 34,
35, 37... groove, 33, 41, 42, 36...
dimple.
Claims (1)
体的に成形されている中空状のブツシユにおい
て、板材をカールすることにより形成し外周面に
溝を少なくとも１個設けたことを特徴とする樹脂
成形品のブツシユ。 A hollow bush integrally molded with a resin molded product for fixing the resin molded product, characterized in that it is formed by curling a plate material and has at least one groove on the outer peripheral surface. Bubble of molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10328280U JPS6245886Y2 (en) | 1980-07-23 | 1980-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10328280U JPS6245886Y2 (en) | 1980-07-23 | 1980-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5727316U JPS5727316U (en) | 1982-02-13 |
| JPS6245886Y2 true JPS6245886Y2 (en) | 1987-12-09 |
Family
ID=29464672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10328280U Expired JPS6245886Y2 (en) | 1980-07-23 | 1980-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245886Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015218800A (en) * | 2014-05-16 | 2015-12-07 | 株式会社ニフコ | Fixing hole reinforcing structure for resin component |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58107824U (en) * | 1982-01-14 | 1983-07-22 | 株式会社ほくさん | Reinforcing material for synthetic resin products using the resin injection method |
-
1980
- 1980-07-23 JP JP10328280U patent/JPS6245886Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015218800A (en) * | 2014-05-16 | 2015-12-07 | 株式会社ニフコ | Fixing hole reinforcing structure for resin component |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5727316U (en) | 1982-02-13 |
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