JPH0117074Y2 - - Google Patents
Info
- Publication number
- JPH0117074Y2 JPH0117074Y2 JP1982149985U JP14998582U JPH0117074Y2 JP H0117074 Y2 JPH0117074 Y2 JP H0117074Y2 JP 1982149985 U JP1982149985 U JP 1982149985U JP 14998582 U JP14998582 U JP 14998582U JP H0117074 Y2 JPH0117074 Y2 JP H0117074Y2
- Authority
- JP
- Japan
- Prior art keywords
- scale plate
- hub
- shaft
- plate shaft
- scale
- 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 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Electromechanical Clocks (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【考案の詳細な説明】
この考案は収納ケースと共に目盛板軸を合成樹
脂で一体に成形してなるタイムスイツチに関する
ものである。[Detailed description of the invention] This invention relates to a time switch in which the storage case and the scale plate shaft are integrally molded from synthetic resin.
従来のタイムスイツチの目盛板軸は、金属製の
地板に金属製の目盛板軸をカシメ付け、上記目盛
板軸に回動自在に目盛板部を遊合し、目盛板軸の
先端に目盛板部の抜け止めを兼ねた固定指針をね
じで締付固定する構造がとられていた。上記のよ
うな構造の場合は、地板と軸が別個の部品となり
コスト上昇をまねくばかりでなく、寸法精度が得
がたい問題点を有している。 The scale plate shaft of a conventional time switch has a metal scale plate shaft caulked to a metal base plate, a scale plate portion is rotatably engaged with the scale plate shaft, and a scale plate is attached to the tip of the scale plate shaft. A structure was adopted in which a fixed pointer, which also served as a mechanism to prevent the part from coming off, was secured by tightening it with a screw. In the case of the above-mentioned structure, the base plate and the shaft are separate parts, which not only causes an increase in cost, but also has the problem that dimensional accuracy is difficult to obtain.
この考案は上記の問題点を解決することを目的
とし、収納ケースと地板と目盛板軸を共に合成樹
脂で一体に成形することで、安価で精度の高いタ
イムスイツチを提供することを目的としたもので
ある。 The purpose of this idea was to solve the above problems, and by molding the storage case, main plate, and scale plate shaft into one piece from synthetic resin, the aim was to provide an inexpensive and highly accurate time switch. It is something.
以下、この考案の一実施例を示す第１図、第２
図、第３図に基づいて説明する。１は合成樹脂製
のケースであつて、地板２、目盛板軸３が一体に
成形されている。目盛板軸３の先端部分にはねじ
締用の下穴３１が設けられている。４は上記目盛
板軸３に回動自在に遊合支承された目盛板部であ
つて、目盛板４１、コイルばね４２、ハブ４３、
歯車４４、設定子４５などから構成されている。
歯車４４はハブ４３の下端にカシメなどの手段で
一体に固定され、ハブ４３の小径部４０１には目
盛板４１のボス４１１が回動自在に遊合され、か
つ、ハブ４３の大径部４０２と目盛板４１のボス
４１１に巻回弾着されたコイルばね４２で目盛板
４１とハブ４３が弾性結合されている。この弾性
結合により、目盛板４１をコイルばね４２の締り
勝手の方向に回動すると結合力が強められ、上記
と反対の方向の回動する結合力が弱められるよう
に、いわゆる一方向性の弾性結合になされてい
る。５は地板２に回動自在に支承されたスイツチ
カムであつて、目盛板４１に着脱自在に装着され
た設定子４５と噛合つて回動され、スイツチ６を
開閉する。７は固定指針であつて、目盛板軸３の
先端面にねじ８によつて締付固定されて、目盛板
部４の目盛板軸３からの抜けを防止している。 Below, Figures 1 and 2 show an example of this invention.
This will be explained based on FIGS. Reference numeral 1 denotes a case made of synthetic resin, in which a base plate 2 and a scale plate shaft 3 are integrally molded. A pilot hole 31 for screw tightening is provided at the tip of the scale plate shaft 3. Reference numeral 4 denotes a scale plate portion rotatably supported on the scale plate shaft 3, which includes a scale plate 41, a coil spring 42, a hub 43,
It is composed of a gear 44, a setter 45, and the like.
The gear 44 is integrally fixed to the lower end of the hub 43 by means such as caulking, and the boss 411 of the scale plate 41 is rotatably engaged with the small diameter portion 401 of the hub 43, and the large diameter portion 402 of the hub 43 The scale plate 41 and the hub 43 are elastically connected by a coil spring 42 which is wound and attached to the boss 411 of the scale plate 41. Due to this elastic coupling, the coupling force is strengthened when the scale plate 41 is rotated in the tightening direction of the coil spring 42, and the coupling force is weakened when the scale plate 41 is rotated in the opposite direction. The combination has been made. A switch cam 5 is rotatably supported on the main plate 2, and is rotated in engagement with a setter 45 detachably attached to a scale plate 41 to open and close the switch 6. Reference numeral 7 denotes a fixed pointer, which is tightened and fixed to the tip end surface of the scale plate shaft 3 with a screw 8 to prevent the scale plate portion 4 from coming off from the scale plate shaft 3.
上述の如く目盛板軸３に組込まれた目盛板部４
は、同期モータ９によつて出力歯車１０を介して
目盛板軸３を中心にして一定速度例えば1/24
RPHの速度で回動される。即ち、同期モータ９
の回転力は歯車１０，４４を介してハブ４３に伝
達され、コイルばね４２で一体に弾性結合された
ハブ４３と目盛板４１が一体となつて目盛板軸３
を中心に回動する。そして、所望の動作時刻に致
ると、目盛板４１に装着された設定子４５によつ
てスイツチカム５が回動されてスイツチ６を開閉
させる。 The scale plate portion 4 incorporated into the scale plate shaft 3 as described above
is driven by a synchronous motor 9 through an output gear 10 at a constant speed, for example, 1/24, around the scale plate shaft 3.
It is rotated at a speed of RPH. That is, the synchronous motor 9
The rotational force of is transmitted to the hub 43 via the gears 10 and 44, and the hub 43 and the scale plate 41, which are elastically connected together by the coil spring 42, are integrated into the scale plate shaft 3.
Rotates around. Then, when a desired operation time is reached, the switch cam 5 is rotated by a setter 45 mounted on the scale plate 41 to open and close the switch 6.
上述の如く目盛板軸３を合成樹脂で形成した場
合に、ねじ８を目盛板軸３を下穴３１にねじ込ん
でゆくと、第３図中に一点鎖線で示す如く、目盛
板軸３の端面が固定指針の下面を介して押しつぶ
される。しかるとき、目盛板軸３の端面およびそ
の近傍が半径方向に拡大される。その結果、目盛
板部４の滑らかな回動が阻害され、極端な場合に
は目盛板部４が回転不能となる問題を有してい
る。 When the scale plate shaft 3 is made of synthetic resin as described above, when the screw 8 is screwed into the pilot hole 31 of the scale plate shaft 3, the end face of the scale plate shaft 3 as shown by the dashed line in FIG. is crushed through the bottom surface of the fixed pointer. At this time, the end face of the scale plate shaft 3 and its vicinity are expanded in the radial direction. As a result, smooth rotation of the scale plate portion 4 is hindered, and in extreme cases, there is a problem that the scale plate portion 4 becomes unable to rotate.
本考案では上記問題点に着目して、第３図示の
如く、目盛板軸３の先端部の押しつぶしによる径
拡大部位にハブ４３が対応しないよう、ハブ４３
の長さを目盛板軸３より短かくしたものである。
なお、上記のようにハブ４３の長さを目盛板軸３
よりも短かくする手段としては、目盛板４１の上
面に、リング状凸起４６を設けてもよい。 In the present invention, paying attention to the above-mentioned problem, as shown in the third figure, the hub 43 is designed to
The length of is made shorter than the scale plate shaft 3.
In addition, as mentioned above, the length of the hub 43 is determined by the scale plate shaft 3.
As a means to make the length shorter than that, a ring-shaped protrusion 46 may be provided on the upper surface of the scale plate 41.
本考案においては上述の如く構成することによ
つて、目盛板軸３へのねじ８のねじ込みによる目
盛板軸３の先端の押しつぶしによる軸径拡張現象
の回避策をこうじたから、目盛板軸３をケース１
と一体に合成樹脂で形成しても常に目盛板部の滑
らかな回動が確保できる。即ち、目盛板軸３をケ
ース１と一体に合成樹脂で形成することによつて
寸法精度の向上部品点数の削減が計れて大巾なコ
ストダウンが可能となる。更に、使用中に目盛板
部４が回転不能となるおそれも全くなく、品質の
安定した高精度のタイムスイツチを安価に提供で
きるものである。 In the present invention, by configuring as described above, we have avoided the phenomenon of shaft diameter expansion due to crushing of the tip of the scale plate shaft 3 by screwing the screw 8 into the scale plate shaft 3. Case 1
Even if it is integrally made of synthetic resin, smooth rotation of the scale plate part can be ensured at all times. That is, by forming the scale plate shaft 3 integrally with the case 1 from synthetic resin, it is possible to improve dimensional accuracy and reduce the number of parts, thereby making it possible to significantly reduce costs. Further, there is no possibility that the scale plate portion 4 becomes unrotatable during use, and a highly accurate time switch with stable quality can be provided at a low cost.
第１図はこの考案の一実施例を示すタイムスイ
ツチの斜視図、第２図はその要部の断面図、第３
図はその要部の拡大断面図である。
図中、１はケース、２は地板、３は目盛板軸、
３１は下穴、４は目盛板部、４１は目盛板、４２
はコイルばね、４３はハブ、４４は歯車、４５は
設定子、５はスイツチカム、６はスイツチ、７は
固定指針、８はねじ、９は同期モータ、１０は出
力歯車、４０１は小径部、４０２は大径部、４１
１はボスである。なお、図中同一符号は夫々同一
または相当部分を示す。
Fig. 1 is a perspective view of a time switch showing one embodiment of this invention, Fig. 2 is a sectional view of its main parts, and Fig. 3 is a perspective view of a time switch showing an embodiment of this invention.
The figure is an enlarged sectional view of the main part. In the figure, 1 is the case, 2 is the main plate, 3 is the scale plate axis,
31 is a pilot hole, 4 is a scale plate part, 41 is a scale plate, 42
is a coil spring, 43 is a hub, 44 is a gear, 45 is a setter, 5 is a switch cam, 6 is a switch, 7 is a fixed pointer, 8 is a screw, 9 is a synchronous motor, 10 is an output gear, 401 is a small diameter part, 402 is the large diameter part, 41
1 is the boss. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
された目盛板軸、上記目盛板軸に遊合され外周に
大径部と小径部を有するハブ、上記ハブの小径部
にボスが遊合された目盛板、上記ハブの大径部と
上記目盛板のボスとに巻回され、上記ハブと上記
目盛板とを弾性結合するコイルばね、上記ハブに
固着され同期モータにより回動される歯車、上記
目盛板軸の先端にねじにより締付固定されること
により上記目盛板軸からの上記目盛板と上記ハブ
の抜けを防止する指針を備え、上記目盛板軸の先
端に上記指針を締付固定したとき上記目盛板軸の
端面が押しつぶされて拡大される部位に上記ハブ
が対応しないよう上記ハブの長さを短かくしたこ
とを特徴とするタイムスイツチ。 A scale plate shaft integrally molded with the case and main plate from synthetic resin, a hub that is loosely fitted to the scale plate shaft and has a large diameter part and a small diameter part on the outer periphery, and a scale plate that has a boss fitted to the small diameter part of the hub. , a coil spring wound around the large diameter portion of the hub and the boss of the scale plate to elastically connect the hub and the scale plate, a gear fixed to the hub and rotated by a synchronous motor, and the scale plate. A pointer is provided at the tip of the shaft to prevent the scale plate and the hub from coming off from the scale plate shaft by being tightened and fixed with a screw, and when the pointer is tightened and fixed to the tip of the scale plate shaft, the above A time switch characterized in that the length of the hub is shortened so that the hub does not correspond to a portion where the end face of the scale plate shaft is compressed and expanded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14998582U JPS5953743U (en) | 1982-10-01 | 1982-10-01 | time switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14998582U JPS5953743U (en) | 1982-10-01 | 1982-10-01 | time switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5953743U JPS5953743U (en) | 1984-04-09 |
| JPH0117074Y2 true JPH0117074Y2 (en) | 1989-05-18 |
Family
ID=30332779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14998582U Granted JPS5953743U (en) | 1982-10-01 | 1982-10-01 | time switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5953743U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527860B2 (en) * | 1974-09-18 | 1980-07-23 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042436Y2 (en) * | 1978-08-12 | 1985-12-26 | オムロン株式会社 | Time setting mechanism of time switch |
-
1982
- 1982-10-01 JP JP14998582U patent/JPS5953743U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527860B2 (en) * | 1974-09-18 | 1980-07-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5953743U (en) | 1984-04-09 |
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