JPS6240178Y2 - - Google Patents
Info
- Publication number
- JPS6240178Y2 JPS6240178Y2 JP19465684U JP19465684U JPS6240178Y2 JP S6240178 Y2 JPS6240178 Y2 JP S6240178Y2 JP 19465684 U JP19465684 U JP 19465684U JP 19465684 U JP19465684 U JP 19465684U JP S6240178 Y2 JPS6240178 Y2 JP S6240178Y2
- Authority
- JP
- Japan
- Prior art keywords
- hub
- leaf spring
- fixed
- hole
- electromagnetic clutch
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Springs (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば複写機等に使用され樹脂製の
ハブを備えた電磁クラツチに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electromagnetic clutch that is used in, for example, a copying machine and is equipped with a resin hub.
従来、この種の電磁クラツチとしては第５図に
示すものが採用されており、これを同図に基づい
て概略説明すると、同図において、１はコイル２
を内蔵するステータであり、３はライニング４が
固定されたロータで、キー５により被動軸６に固
定されている。７は歯車８を有する熱可塑性樹脂
製のハブで、筒状に形成されて前記被動軸６に回
転自在に設けられている。またこのハブ７には周
方向に複数のねじ孔９（一個のみ図示）が設けら
れている。１０は復帰用の板ばねで、前記ねじ孔
９に螺合されたねじ１１によつて前記ハブ７に固
定されている。この板ばね１０の前記ランニング
４に対向する部位にはアマチユア１２がリベツト
１３によつて固定されている。そして、このアマ
チユア１２と前記ロータ３との間には常時一定の
ギヤツプｇが保たれている。
Conventionally, as this type of electromagnetic clutch, the one shown in FIG. 5 has been employed.This will be briefly explained based on the same figure.
3 is a rotor to which a lining 4 is fixed, and is fixed to a driven shaft 6 by a key 5. Reference numeral 7 denotes a hub made of thermoplastic resin and having a gear 8, which is formed into a cylindrical shape and is rotatably provided on the driven shaft 6. Further, the hub 7 is provided with a plurality of screw holes 9 (only one is shown) in the circumferential direction. Reference numeral 10 denotes a return leaf spring, which is fixed to the hub 7 by a screw 11 screwed into the screw hole 9. An armature 12 is fixed to a portion of the leaf spring 10 facing the running 4 by a rivet 13. A constant gap g is always maintained between the armature 12 and the rotor 3.
したがつて、コイル２に電流を流すと同図に破
線で示すように磁束Φが生じて磁気回路が形成さ
れ、アマチユア１２は板ばね１０の弾撥力に抗し
てロータ３に吸引される。そして、駆動側の回転
は歯車８、板ばね１０、アマチユア１２、ライニ
ング４、ロータ３、キー５を介して被動軸６に伝
達される。 Therefore, when a current is passed through the coil 2, a magnetic flux Φ is generated as shown by the broken line in the figure, forming a magnetic circuit, and the armature 12 is attracted to the rotor 3 against the elastic force of the leaf spring 10. . The rotation on the drive side is transmitted to the driven shaft 6 via the gear 8, leaf spring 10, armature 12, lining 4, rotor 3, and key 5.
一方、電流を切ると磁束が消失してアマチユア
１２は板ばね１０の弾撥力によりロータ３から離
間し回転が遮断される。 On the other hand, when the current is turned off, the magnetic flux disappears, and the armature 12 is separated from the rotor 3 by the elastic force of the leaf spring 10, and rotation is interrupted.
ところが、従来の電磁クラツチにおいては、ハ
ブ７が膨張、収縮度の大きい合成樹脂で形成され
ているため、熱変化によるねじ１１の緩みによつ
てその締結力がなくなり、板ばね１０が破損する
か、あるいはアマチユア１２に板ばね１０の弾撥
力が作用しなくなるかして、コイル２の通電が停
止されているにもかかわらずロータ３とアマチユ
ア１２が接触するという不都合があつた。
However, in conventional electromagnetic clutches, since the hub 7 is made of synthetic resin that expands and contracts with a high degree of expansion and contraction, the tightening force is lost due to loosening of the screw 11 due to thermal changes, and the leaf spring 10 may be damaged. Alternatively, the elastic force of the leaf spring 10 may no longer act on the armature 12, resulting in the inconvenience that the rotor 3 and the armature 12 come into contact even though the coil 2 is de-energized.
そこで、ねじ１１の代わりに鉄系のリベツトを
使用して板ばね１０をハブ７にかしめ固定するこ
とも考えられるが、この場合かしめ圧力によりハ
ブ７側の部材が破損するという問題がある。 Therefore, it is conceivable to caulk and fix the leaf spring 10 to the hub 7 using iron-based rivets instead of the screws 11, but in this case there is a problem that the members on the hub 7 side are damaged by the caulking pressure.
本考案はこのような事情に鑑みなされたもの
で、板ばねのハブへの固着能力が保証でき、かつ
安価に製作できる電磁クラツチを提供するもので
ある。 The present invention was devised in view of the above circumstances, and it is an object of the present invention to provide an electromagnetic clutch that can guarantee the ability to fix the leaf spring to the hub and can be manufactured at low cost.
本考案に係る電磁クラツチは、板ばねに貫通孔
を設けると共に、この貫通孔の開口周縁に筒部を
一体に設け、この筒部が嵌入し固定される環状溝
をハブに設けたものである。
In the electromagnetic clutch according to the present invention, a through hole is provided in the leaf spring, a cylindrical portion is integrally provided around the opening of the through hole, and an annular groove is provided in the hub into which the cylindrical portion is fitted and fixed. .
本考案においては、板ばねに貫通孔を設けると
共に、この貫通孔の開口周縁に筒部を設け、この
筒部が嵌入し固定される環状溝をハブに設けたか
ら、板ばねをハブに対し確実に固着することがで
きる。
In this invention, a through hole is provided in the leaf spring, a cylindrical portion is provided around the opening of the through hole, and an annular groove is provided in the hub into which this cylindrical portion is fitted and fixed, so that the leaf spring is securely attached to the hub. can be fixed to.
第１図は本考案に係る電磁クラツチを示す断面
図、第２図および第３図は同じく電磁クラツチの
ハブと板ばねを示す断面図で、同図において第５
図と同一の部材については同一の符号を付し、詳
細な説明は省略する。同図において、符号２１は
後述するハブに対し超音波溶接等により固着され
る復帰用の板ばねで、前記アマチユア１２と反対
側の端部に貫通孔２２が設けられており、この貫
通孔２２の開口周縁にはバーリング加工により筒
部としてのフランジ２３が設けられている。２４
は歯車２５を有する熱可塑性樹脂で形成されたハ
ブで、前記ロータ３側の部位には前記フランジ２
３が嵌入し固定される複数の環状溝２６（一個の
み図示）が所定の等間隔を隔てて設けられてい
る。
FIG. 1 is a sectional view showing the electromagnetic clutch according to the present invention, and FIGS. 2 and 3 are sectional views showing the hub and leaf spring of the electromagnetic clutch.
The same members as those in the figures are given the same reference numerals, and detailed explanations will be omitted. In the figure, reference numeral 21 denotes a return leaf spring that is fixed to the hub by ultrasonic welding or the like, which will be described later, and is provided with a through hole 22 at the end opposite to the armature 12. A flange 23 as a cylindrical portion is provided at the periphery of the opening by burring. 24
is a hub made of thermoplastic resin and has a gear 25, and the flange 2 is located on the rotor 3 side.
A plurality of annular grooves 26 (only one is shown) into which the grooves 3 are fitted and fixed are provided at predetermined equal intervals.
したがつて、板ばね２１をハブ２４に固着する
には、先ずハブ２４の環状溝２６に板ばね２１の
フランジ２３を嵌入する。このとき、環状溝２６
の溝壁２６ａ，２６ｂが板ばね２１の貫通孔２２
およびフランジ２３に密着している。次に板ばね
２１およびハブ２４を超音波溶接装置（図示せ
ず）の両音極間に保持する。そして、加圧しなが
ら両部材２１，２４に超音波振動を与えてハブ２
４の一部を溶融させる。 Therefore, in order to secure the leaf spring 21 to the hub 24, first the flange 23 of the leaf spring 21 is fitted into the annular groove 26 of the hub 24. At this time, the annular groove 26
The groove walls 26a, 26b of the through hole 22 of the leaf spring 21
and is in close contact with the flange 23. Next, the leaf spring 21 and the hub 24 are held between the two sonic poles of an ultrasonic welding device (not shown). Then, while applying pressure, ultrasonic vibrations are applied to both members 21 and 24 to make the hub 2
Melt part of 4.
このようにして、板ばね２１をハブ２４に対し
確実に固着することができる。 In this way, the leaf spring 21 can be securely fixed to the hub 24.
なお、本実施例においては、板ばね２１をハブ
２４に固着する場合超音波溶接を用いる例を示し
たが、本考案は高周波、スピン、熱板等による他
の溶着手段を用いることができる。また、用途に
よつては第４図に示すように接着剤を用いること
もできる。すなわちこの場合、板ばね２１のフラ
ンジ２３をハブ２７に設けた環状溝２８に嵌入さ
せ両部材２１，２７が接合されている。 In this embodiment, an example is shown in which ultrasonic welding is used to fix the leaf spring 21 to the hub 24, but the present invention can use other welding means such as high frequency, spin, hot plate, etc. Further, depending on the application, an adhesive may be used as shown in FIG. That is, in this case, the flange 23 of the leaf spring 21 is fitted into an annular groove 28 provided in the hub 27, and both members 21 and 27 are joined.
また、実施例においては、板ばね２１のフラン
ジ２３がバーリング加工により形成されるものを
示したが、本考案はこれに限定されるものではな
く、フランジ２３が例えば絞り加工等の他のプレ
ス加工により形成されるものでも勿論よい。 Further, in the embodiment, the flange 23 of the leaf spring 21 is formed by burring, but the present invention is not limited to this. Of course, it may also be formed by.
以上説明したように本考案によれば、板ばねに
貫通孔を設けると共に、この貫通孔の開口周縁に
筒部を一体に設け、この筒部が嵌入し固定される
環状溝をハブに設けたので、板ばねをハブに確実
に固着することができる。しかも、両部材の接合
強度は高くその固着能力も十分保証される。ま
た、従来のようにねじ固定によるものではないか
ら、ねじ加工が不要となり組立の合理化を計るこ
とができる。さらに、ハブは合成樹脂製であるか
ら、材料費が安価になるだけでなく、ハブと被動
軸間に軸受を設ける必要がなくなり、部品点数の
削減によるコストの低廉化を計ることもできる。
As explained above, according to the present invention, a through hole is provided in the leaf spring, a cylindrical portion is integrally provided around the opening of the through hole, and an annular groove into which the cylindrical portion is fitted and fixed is provided in the hub. Therefore, the leaf spring can be securely fixed to the hub. Moreover, the bonding strength of both members is high and their fixing ability is sufficiently guaranteed. In addition, since it is not fixed with screws as in the past, screw machining is not required and assembly can be streamlined. Furthermore, since the hub is made of synthetic resin, not only is the material cost low, but there is no need to provide a bearing between the hub and the driven shaft, and costs can be reduced by reducing the number of parts.
第１図は本考案に係る磁気クラツチを示す断面
図、第２図および第３図は同じく電磁クラツチの
ハブと板ばねを示す断面図、第４図は他の実施例
を示す断面図、第５図は従来の電磁クラツチを示
す断面図である。
１２……アマチユア、２１……板ばね、２２…
…貫通孔、２３……フランジ、２４……ハブ、２
６……環状溝。
FIG. 1 is a sectional view showing a magnetic clutch according to the present invention, FIGS. 2 and 3 are sectional views showing the hub and leaf spring of the electromagnetic clutch, and FIG. 4 is a sectional view showing another embodiment. FIG. 5 is a sectional view showing a conventional electromagnetic clutch. 12... Amachiyua, 21... Leaf spring, 22...
...Through hole, 23...Flange, 24...Hub, 2
6...Annular groove.
Claims (1)
脂製のハブを備えた電磁クラツチにおいて、前記
板ばねに貫通孔を設けると共に、この貫通孔の開
口周縁に筒部を一体に設け、この筒部が嵌入し固
定される複数の環状溝を前記ハブに周方向に所定
間隔を隔てて設けたことを特徴とする電磁クラツ
チ。 In an electromagnetic clutch equipped with a synthetic resin hub to which an armature is fixed via a leaf spring, a through hole is provided in the leaf spring, and a cylindrical portion is integrally provided around the opening of the through hole. An electromagnetic clutch characterized in that a plurality of annular grooves into which the hub is fitted and fixed are provided at predetermined intervals in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19465684U JPS6240178Y2 (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19465684U JPS6240178Y2 (en) | 1984-12-21 | 1984-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61108530U JPS61108530U (en) | 1986-07-09 |
| JPS6240178Y2 true JPS6240178Y2 (en) | 1987-10-14 |
Family
ID=30752111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19465684U Expired JPS6240178Y2 (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6240178Y2 (en) |
-
1984
- 1984-12-21 JP JP19465684U patent/JPS6240178Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61108530U (en) | 1986-07-09 |
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