JPS6142525Y2 - - Google Patents
Info
- Publication number
- JPS6142525Y2 JPS6142525Y2 JP1981141988U JP14198881U JPS6142525Y2 JP S6142525 Y2 JPS6142525 Y2 JP S6142525Y2 JP 1981141988 U JP1981141988 U JP 1981141988U JP 14198881 U JP14198881 U JP 14198881U JP S6142525 Y2 JPS6142525 Y2 JP S6142525Y2
- Authority
- JP
- Japan
- Prior art keywords
- cam
- spur gear
- pattern
- sewing machine
- gear
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
（目 的）
本考案はミシンにおける模様カム駆動装置に関
するものであつて、その目的とするところは駆動
軸から模様カムへの回転伝達機構たる歯車機構に
おいて発生する衝撃荷重を低下せしめて歯車寿命
の延長を計ると共に騒音を低下せしめることであ
る。[Detailed description of the invention] (Purpose) The present invention relates to a pattern cam drive device for a sewing machine, and its purpose is to reduce the impact load generated in the gear mechanism that is the rotation transmission mechanism from the drive shaft to the pattern cam. This aims to extend the life of gears by lowering the noise, and also to reduce noise.
（構 成）
本考案の構造を図面に従つて以下に説明する
と、１はカム機構台でミシン機枠（図示せず）に
固着せしめられ、該カム機構台の両側に形成され
た直立枠２，２の内側には一体的に形成された複
数の模様カム３と平歯車４とが一体的に回転可能
なる如く挾持されている。(Structure) The structure of the present invention will be explained below according to the drawings. 1 is a cam mechanism base fixed to a sewing machine frame (not shown), and upright frames 2 are formed on both sides of the cam mechanism base. , 2, a plurality of integrally formed pattern cams 3 and a spur gear 4 are sandwiched so as to be rotatable together.
５は駆動軸でミシン機枠内に回転可能に支持さ
れておりモータ（図示せず）により回転せしめら
れる。 5 is a drive shaft rotatably supported within the sewing machine frame and rotated by a motor (not shown).
６は小歯車で前記駆動軸５上に固着され前記平
歯車４に噛合せしめられている。 A small gear 6 is fixed on the drive shaft 5 and meshed with the spur gear 4.
７，７はカム従動子で従動子支持板８に揺動可
能に枢着され前記模様カム３の外周に一端を係止
可能に配設されている。 Reference numerals 7 and 7 designate cam followers which are pivotally connected to the follower support plate 8 so as to be able to swing, and one end of which is lockable to the outer periphery of the patterned cam 3.
９は摩擦円板で前記平歯車４の隣接位置に配設
されており、前記機構台１の直立枠２との間の平
歯車４のボス部の外周に嵌装した圧縮ばね１０に
より平歯車４側に押し付けられている。平歯車４
と摩擦円板９の間には粘度の高い潤滑油が注油さ
れている。 Reference numeral 9 denotes a friction disk, which is disposed adjacent to the spur gear 4, and is driven by a compression spring 10 fitted around the outer periphery of the boss portion of the spur gear 4 between it and the upright frame 2 of the mechanism stand 1. It is pressed against the 4th side. Spur gear 4
A highly viscous lubricating oil is applied between the friction disk 9 and the friction disk 9.
前記圧縮ばね１０の一端１１は前記直立枠２に
固着されており、他端１２は前記摩擦円板９の適
宜の位置に折り返された突起部１３に係止されて
いて、摩擦円板９の回転は阻止されている。１４
はミシン機枠外部に臨ましめられミシン操作者に
より押圧操作せしめられるよう設けられた模様選
択操作部である。 One end 11 of the compression spring 10 is fixed to the upright frame 2, and the other end 12 is locked to a protrusion 13 that is folded back at an appropriate position on the friction disc 9. Rotation is prevented. 14
1 is a pattern selection operation section that faces the outside of the sewing machine frame and is provided to be pressed and operated by the sewing machine operator.
（作用及び効果）
本考案は以下の如く構成されているので、前記
駆動軸５がモータにより回転せしめられると小歯
車６、平歯車４を介して複数の模様カム３が回転
せしめられるミシン操作者により所望の模様選択
ボタン１４が押圧操作せしめられてカム従動子７
の一端が模様カム３の外周に係合せしめられてい
ると、前記小歯車６と平歯車４の噛み合つている
各歯の間には模様カム３がカム従動子４の一端を
上昇せしめる際と下降せしめる際では歯車間に形
成されているバツクラツシユ内の範囲の極めて小
さい量ながらも従来の構造では回転方向が正逆切
換はり、その度ごとに２つの歯車間に衝撃音が発
生し、殊に模様選択ボタン１４，１４を同時に２
個以上選択して合成模様を縫つている状態で激し
い衝撃音が発生するが、本考案では前記平歯車４
の側面に摩擦円板９が圧縮ばね１０により押し付
けられているのでカム従動子４の一端に対する上
昇又は下降の切換時に平歯車４が小歯車６に衝撃
せしめられることが阻止される。(Operations and Effects) Since the present invention is constructed as follows, when the drive shaft 5 is rotated by the motor, the plurality of pattern cams 3 are rotated via the small gear 6 and the spur gear 4. , the desired pattern selection button 14 is pressed and the cam follower 7 is pressed.
When one end of the patterned cam 3 is engaged with the outer periphery of the patterned cam 3, there is a gap between the meshing teeth of the small gear 6 and the spur gear 4 when the patterned cam 3 raises one end of the cam follower 4. When lowering the gears, the rotation direction changes between the forward and reverse directions in the conventional structure, although the range within the backlash formed between the gears is extremely small, and an impact noise is generated between the two gears each time. Press pattern selection buttons 14 and 2 at the same time.
A strong impact sound is generated when a composite pattern is sewn with more than one selected.However, in this invention, the spur gear 4
Since the friction disk 9 is pressed against the side surface of the cam follower 4 by the compression spring 10, the impulse of the spur gear 4 against the pinion 6 is prevented when the cam follower 4 is switched upward or downward relative to one end.
従つて、本考案はミシン運転中に模様カム駆動
装置の歯車伝達機構内に生じる歯車騒音が著しく
低減出来ると共に歯車の摩耗を防ぐことの出来る
実用上効果大なるものである。 Therefore, the present invention is very effective in practical use since it can significantly reduce the gear noise generated in the gear transmission mechanism of the pattern cam drive device while the sewing machine is in operation and also can prevent wear on the gears.
図面は本考案の実施例を示すものにして第１図
は本考案の実施例を下方より見た底面図、第２図
は本考案の実施例の側面図であり、２は直立板、
３は模様カム、４は平歯車、９は摩擦円板、１０
は圧縮ばねである。
The drawings show an embodiment of the present invention; Fig. 1 is a bottom view of the embodiment of the present invention seen from below; Fig. 2 is a side view of the embodiment of the present invention; 2 is an upright plate;
3 is a pattern cam, 4 is a spur gear, 9 is a friction disk, 10
is a compression spring.
Claims (1)
て回転せしめられ且つ模様選択操作部１４の操作
によりカム従動子７の一端が夫々係合せしめられ
る複数個の模様カム３が備えられたミシンにおい
て、 前記模様カム３と一体的に回転せしめられる平
歯車４と、該平歯車の隣接位置に配設せしめられ
る摩擦円板９と、一端が機構台１の直立板２に固
着され他端が前記摩擦円板９に係止され該円板を
前記平歯車４の側面に押圧せしめる圧縮ばね１０
とが設けられたことを特徴とするミシンにおける
模様カム駆動装置。[Claims for Utility Model Registration] A plurality of cam followers 7 which are rotated in conjunction with the rotation of the drive shaft 5 via the gear mechanisms 4 and 6, and which are engaged with one end of the cam follower 7 by operating the pattern selection operation unit 14. A sewing machine equipped with a pattern cam 3 includes a spur gear 4 that rotates integrally with the pattern cam 3, a friction disc 9 that is disposed adjacent to the spur gear, and one end of which is connected to the mechanism base 1. a compression spring 10 fixed to the upright plate 2 and having its other end locked to the friction disk 9 to press the disk against the side surface of the spur gear 4;
A pattern cam drive device for a sewing machine, characterized in that it is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14198881U JPS5846572U (en) | 1981-09-26 | 1981-09-26 | Pattern cam drive device in sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14198881U JPS5846572U (en) | 1981-09-26 | 1981-09-26 | Pattern cam drive device in sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5846572U JPS5846572U (en) | 1983-03-29 |
| JPS6142525Y2 true JPS6142525Y2 (en) | 1986-12-02 |
Family
ID=29935040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14198881U Granted JPS5846572U (en) | 1981-09-26 | 1981-09-26 | Pattern cam drive device in sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5846572U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634065U (en) * | 1979-08-24 | 1981-04-03 |
-
1981
- 1981-09-26 JP JP14198881U patent/JPS5846572U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5846572U (en) | 1983-03-29 |
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