JPS6244436Y2 - - Google Patents
Info
- Publication number
- JPS6244436Y2 JPS6244436Y2 JP17763380U JP17763380U JPS6244436Y2 JP S6244436 Y2 JPS6244436 Y2 JP S6244436Y2 JP 17763380 U JP17763380 U JP 17763380U JP 17763380 U JP17763380 U JP 17763380U JP S6244436 Y2 JPS6244436 Y2 JP S6244436Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- main shaft
- time switch
- cam
- axial direction
- 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
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Mechanisms For Operating Contacts (AREA)
Description
【考案の詳細な説明】
本考案は、合成樹脂材で主軸と主軸周りの部品
と、ツマミ固定用のスリ割溝と掛ツバとを一体に
形成したタイムスイツチの主軸に関する。[Detailed Description of the Invention] The present invention relates to a main shaft of a time switch in which a main shaft, parts around the main shaft, a slotted groove for fixing a knob, and a hanging collar are integrally formed of synthetic resin material.
従来タイムスイツチの主軸はアルミ等の金属を
用いていたので、イ）歯車等を一体にすることが
できず部品点数が多かつた。ロ）主軸が金属の為
導電性があり、タイムスイツチケース内部での絶
縁劣化等があつた場合、電気が主軸に伝わる危険
があつた。ハ）金属の為剛性が大きくスリ割に弾
性を効かせてツマミを圧入することが難しい。等
の欠点があつた。 Conventionally, the main shaft of time switches was made of metal such as aluminum, so a) gears etc. could not be integrated, resulting in a large number of parts. b) Since the main shaft is metal, it is conductive, and if the insulation deteriorated inside the time switch case, there was a risk that electricity could be transmitted to the main shaft. C) Since it is made of metal, it is very rigid and it is difficult to press fit the knob by applying elasticity to the slot. There were other drawbacks.
本考案の目的は、前述した欠点を解決したタイ
ムスイツチの主軸を提供することである。 The object of the present invention is to provide a main shaft of a time switch that overcomes the above-mentioned drawbacks.
以下、図示の実施例で本考案を説明する。第１
図で合成樹脂で主軸１が形成されている。この主
軸１には図イのように、円筒形の軸筒１０と、軸
筒より大径の筒部１１と、カム１２と、歯車１３
と、被軸受部１４と、軸部１５と、軸部１５の中
心を通る直交する位置の外周に設けた掛ツバ１
６，１６と、軸部１５の先端中央には底部１７ａ
が円弧状のスリ割溝１７とが夫々接して一体に形
成されている。 The present invention will be explained below with reference to illustrated embodiments. 1st
In the figure, the main shaft 1 is made of synthetic resin. As shown in Figure A, this main shaft 1 includes a cylindrical shaft tube 10, a cylindrical portion 11 with a larger diameter than the shaft tube, a cam 12, and a gear 13.
, the bearing portion 14 , the shaft portion 15 , and the hanging collar 1 provided on the outer periphery of the shaft portion 15 at a position perpendicular to the center thereof.
6, 16, and a bottom portion 17a at the center of the tip of the shaft portion 15.
and the arc-shaped slit grooves 17 are integrally formed so as to be in contact with each other.
前記主軸１は第２図のようにタイムスイツチの
ケース２，３に穿設された軸孔２ａ，３ａに軸筒
１０と被軸受部１４で夫々軸受されている。主軸
１の中心には軸線方向に段付の穴１８と１９が穿
設されて主軸の温度変化による膨張、収縮のバラ
ツキを各部一定になるようになされている。又こ
の段付の穴１８，１９によつて成形時のヒケも防
止されている。 As shown in FIG. 2, the main shaft 1 is supported by a shaft cylinder 10 and a bearing portion 14 in shaft holes 2a and 3a formed in the cases 2 and 3 of the time switch, respectively. Stepped holes 18 and 19 are bored in the center of the main shaft 1 in the axial direction so that variations in expansion and contraction due to temperature changes of the main shaft are kept constant at each part. The stepped holes 18 and 19 also prevent sink marks during molding.
前記カム１２は図ロのように円板状の周面に凹
凸が設けられて図示されない接片が当接され、主
軸１の回転で接片が切換制御されている。 The cam 12 has a disc-shaped circumferential surface with irregularities as shown in FIG.
前記歯車１３は図示されないモーターや全舞の
駆動源から摩擦伝達機構及び減速輪列を介して回
転される歯車に噛合されて主軸１を回転するよう
に構成されている。 The gear 13 is configured to rotate the main shaft 1 by meshing with a gear rotated from a motor or a full-speed drive source (not shown) via a friction transmission mechanism and a reduction gear train.
前記スリ割溝１７の底部１７ａは円弧状に形成
することにより、ツマミ４の係合ピン５を軸部１
５に圧入の際、応力集中で折れたり、ヒビが入る
とか、経時変化による圧入力低下を防止してい
る。 The bottom part 17a of the slot groove 17 is formed in an arc shape so that the engagement pin 5 of the knob 4 can be attached to the shaft part 1.
5. When press-fitting, this prevents bending or cracking due to stress concentration, or a decrease in pressing force due to changes over time.
前記掛ツバ１６とスリ割溝１７は軸部１５にツ
マミ４が圧入されたとき、ツマミ４の長溝４ａと
係合ピン５が同時に又は一方が圧入或は係合する
ように形成されている。 The hanging collar 16 and the slotted groove 17 are formed so that when the knob 4 is press-fitted into the shaft portion 15, the long groove 4a of the knob 4 and the engagement pin 5 are press-fitted or engaged with each other at the same time or one of them.
本考案は前述のように構成されたから、主軸を
通してツマミ部に電気が通じることがない。又主
軸先端での弾性が良く、ツマミの圧入代を大きく
とることができるので、圧入力の変動が小さく、
ツマミがガタつくことがない。又被軸受部径を効
率的に大きくすることができて単位接触圧力の減
少を計ることができ、耐摩耗特性を著しく向上さ
せることができる。さらに部品の組み立て作業が
簡略化されて効率的になる等優れた効果を奏する
タイムスイツチの主軸が得られる。 Since the present invention is constructed as described above, electricity does not pass through the main shaft to the knob. In addition, the tip of the spindle has good elasticity and allows for a large amount of press-fitting allowance for the knob, so fluctuations in press-in force are small.
The knob never rattles. Furthermore, the diameter of the bearing part can be effectively increased, the unit contact pressure can be reduced, and the wear resistance can be significantly improved. Furthermore, the main shaft of the time switch can be obtained which has excellent effects such as simplifying the assembly work of parts and making it more efficient.
図面は本考案の一実施例が示され、第１図は主
軸の説明図、第２図はケースに組み込んだ主軸の
説明図である。
１……主軸、２，３……ケース、４……ツマ
ミ、１２……カム、１３……歯車、１４……被軸
受部、１５……軸部、１６……掛ツバ、１７……
スリ割溝、１７ａ……底部。
The drawings show an embodiment of the present invention, with FIG. 1 being an explanatory diagram of the main shaft, and FIG. 2 being an explanatory diagram of the main shaft assembled in a case. 1... Main shaft, 2, 3... Case, 4... Knob, 12... Cam, 13... Gear, 14... Bearing part, 15... Shaft part, 16... Hanging collar, 17...
Slit groove, 17a...bottom.
Claims (1)
カムに摺接させて前記カムを回転させて切換制御
する方式のタイムスイツチにおいて、前記カムと
前記主軸の軸方向に隣接した前記タイムスイツチ
の輪列に噛合する歯車と、この歯車と前記軸方向
に隣接した前記ケースの軸受に支承される被軸受
部と、この被軸受部と前記軸方向に隣接した前記
ケース外に突出した軸部とを前記タイムスイツチ
の主軸として合成樹脂で一体に形成し、前記軸部
の先端中央には底部が円弧を成すスリ割溝を形成
すると共に前記軸部の外周対抗位置には掛ツバを
一体に形成して成るタイムスイツチの主軸。 In a time switch of the type in which a contact piece housed in a case is brought into sliding contact with a cam provided on a main shaft and the cam is rotated to control switching, the time switch is adjacent to the cam in the axial direction of the main shaft. a gear meshing with a gear train; a bearing portion supported by a bearing of the case adjacent to the gear in the axial direction; and a shaft portion protruding outside the case adjacent to the bearing portion in the axial direction. is integrally formed of synthetic resin as the main shaft of the time switch, a slotted groove whose bottom forms an arc is formed at the center of the tip of the shaft, and a hanging collar is integrally formed at a position opposite to the outer periphery of the shaft. The main axis of the time switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17763380U JPS6244436Y2 (en) | 1980-12-12 | 1980-12-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17763380U JPS6244436Y2 (en) | 1980-12-12 | 1980-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57101457U JPS57101457U (en) | 1982-06-22 |
| JPS6244436Y2 true JPS6244436Y2 (en) | 1987-11-24 |
Family
ID=29971695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17763380U Expired JPS6244436Y2 (en) | 1980-12-12 | 1980-12-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6244436Y2 (en) |
-
1980
- 1980-12-12 JP JP17763380U patent/JPS6244436Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57101457U (en) | 1982-06-22 |
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