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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