JPS5831250Y2 - service meter - Google Patents
service meterInfo
- Publication number
- JPS5831250Y2 JPS5831250Y2 JP1975139003U JP13900375U JPS5831250Y2 JP S5831250 Y2 JPS5831250 Y2 JP S5831250Y2 JP 1975139003 U JP1975139003 U JP 1975139003U JP 13900375 U JP13900375 U JP 13900375U JP S5831250 Y2 JPS5831250 Y2 JP S5831250Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- bushes
- service meter
- counter
- diameter portion
- 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
- Measurement Of Unknown Time Intervals (AREA)
Description
【考案の詳細な説明】
この考案は建設機械に搭載したエンジンなどの稼動時間
を積算するサービスメータの改阜に門する。[Detailed description of the invention] This invention is based on the innovation of a service meter that totals the operating time of an engine installed in a construction machine.
従来のこの種サービスメータは、第１図に示すようにエ
ンジンの駆動部に接続されて回転する駆動軸ａが、ケー
スｂ内に回転自在に遊嵌されていると共に、１駆動軸ａ
に形成したウオームＣが図示しない計数器に接続された
ピニオンｄに噛合されて、エンジンの回転を計数器へ伝
えるようになっている。In a conventional service meter of this kind, as shown in FIG.
A worm C formed in the figure is meshed with a pinion d connected to a counter (not shown) to transmit engine rotation to the counter.
係るサービスメータは１駆動軸ａの上下または左右方向
の移動が何等規制されていないために、回転時上下左右
に振動して誤差が発生しやすいと共に、各ギヤの噛合部
が早期に摩耗するため、短時間で動作不良を起すなどの
欠点があった。Since such service meters do not have any restrictions on the vertical or horizontal movement of the drive shaft a, they tend to vibrate vertically and horizontally during rotation, which tends to cause errors, and the meshing parts of each gear wear out prematurely. However, there were drawbacks such as malfunctions occurring in a short period of time.
この考案は係る欠点を除去する目的でなされたもので、
駆動軸をブツシュにより支承して上下及び左右方向の移
動を規制したサービスメータを提供することにより１．
７−ビスメータの信頼性及び耐久性の向上を計ろうとす
るものである。This invention was made with the purpose of eliminating such drawbacks,
By providing a service meter in which the drive shaft is supported by a bushing and movement in the vertical and horizontal directions is restricted, 1.
The objective is to improve the reliability and durability of the 7-vis meter.
以下との考案を第２図以下に示す実施例について詳述す
る。The following ideas will be described in detail with reference to embodiments shown in FIG. 2 and subsequent figures.
図において１はサービスメータのケース本、体で、円筒
状部１ａ内に駆動軸２が収容されてかり、駆動軸２の両
端側は、円筒状部１ａの両端部に形成された大径部１ｂ
に夫々圧入された一対のブツシュ３に回転自在に支承さ
れている。In the figure, 1 is a case body of a service meter, and a drive shaft 2 is housed in a cylindrical portion 1a, and both ends of the drive shaft 2 are large diameter portions formed at both ends of the cylindrical portion 1a. 1b
It is rotatably supported by a pair of bushings 3 which are press-fitted into the respective parts.
駆動軸２の下端部には大径部２ａが形成されて、この大
径部２ａと小径部２ｂの間の段部２ｃが、下側のブッシ
ュ３下面に摺接されていると共に１、駆動軸２の上端側
には、上側のプツシ−Ｌ３直上にむいて溝２ｄが形成さ
れ、この溝２ｄにスナップリング４が装着されて、１駆
動軸２の上下動が規制されている。A large diameter portion 2a is formed at the lower end of the drive shaft 2, and a stepped portion 2c between the large diameter portion 2a and the small diameter portion 2b is in sliding contact with the lower surface of the lower bush 3. A groove 2d is formed in the upper end of the shaft 2 directly above the upper pusher L3, and a snap ring 4 is attached to this groove 2d to restrict vertical movement of the drive shaft 2.
また駆動軸２の下端は継手５を介して図示しないエンジ
ンの駆動部に接続できるようになっていると共に、駆動
軸２の中間部にはウオーム６が珍成されている。Further, the lower end of the drive shaft 2 can be connected to a drive section of an engine (not shown) via a joint 5, and a worm 6 is provided in the middle of the drive shaft 2.
このウオーム６はケース本体１内に収容された計数器７
の回転軸８に固着されたピニオン９が噛合されて、エン
ジンの回転を計数器７に伝えられるようになっている。This worm 6 is a counter 7 housed in the case body 1.
A pinion 9 fixed to the rotating shaft 8 of the engine is meshed with the rotating shaft 8 so that the rotation of the engine can be transmitted to the counter 7.
なｉ−”、’１．０は取付は用のナツトである。``i-'', '1.0 is the nut for installation.
この考案は以上詳述したように、ケース本体１の円筒状
部１ａに、上下方向からブツシュ３を圧入して、これら
ブツシュ３の間に駆動軸２を回転自在に支承すると共に
、これらブツシュ３の上下面に駆動軸の両端に設けたス
ナップリング４及び大径部２ａを夫々係止させて、１駆
動軸２の上下動を規制させたことから、回転中に１駆動
軸２が上下及び左右方向に移動することがなく、従って
駆動軸２の振動によってウオーム６及びピニオン９の噛
合が不確実となって誤差を生じたり、噛合部が早期に損
傷するなどの虞れが未然に防止できるようになる。As described in detail above, this device press-fits the bushes 3 into the cylindrical portion 1a of the case body 1 from above and below, rotatably supports the drive shaft 2 between these bushes 3, and Snap rings 4 and large diameter portions 2a provided at both ends of the drive shaft are respectively locked on the upper and lower surfaces of the drive shaft to restrict the vertical movement of the drive shaft 2, so that the drive shaft 2 does not move up or down during rotation. There is no movement in the left-right direction, so it is possible to prevent the vibration of the drive shaft 2 from causing uncertain meshing between the worm 6 and the pinion 9, causing errors, and early damage to the meshing portion. It becomes like this.
これによりサービスメータの信頼性と耐久力を著しるし
く高めることができるようになる。This makes it possible to significantly increase the reliability and durability of the service meter.
第１図は従来のサービスメータを示す断面図、第２図は
この考案の一実施例になるサービスメタの正面図、第３
図は第２図■−■線に沿う拡大断面図である。
１はケース本体、１ａは筒状部、２は駆動軸、３はブツ
シュ、４はスナップリング、６はウオーム、７は計数器
、８は回転軸、９はピニオン。Figure 1 is a sectional view showing a conventional service meter, Figure 2 is a front view of a service meter that is an embodiment of this invention, and Figure 3 is a front view of a service meter that is an embodiment of this invention.
The figure is an enlarged sectional view taken along the line ■-■ in FIG. 1 is a case body, 1a is a cylindrical part, 2 is a drive shaft, 3 is a bush, 4 is a snap ring, 6 is a worm, 7 is a counter, 8 is a rotating shaft, and 9 is a pinion.
Claims (1)
１の上記円筒状部１ａ内に、上下方向かラフッシュ３を
圧入して、これらブツシュ３の間に、駆動軸２の両端側
に設けた筒状小径部２ｂを回転自在に支承し、かつ駆動
軸２の一端に設けた大径部２ａと、曲端に設けたスナッ
プリング４を各ブツシュ３の端面に係止することにより
、駆動軸２の上下動を規制すると共に、駆動軸２の中間
部に設けたウオーム６を、計数器７０回転軸８に固着し
たピニオン９と噛合させてなるサービスメータ。The luff bushes 3 are press-fitted vertically into the cylindrical part 1a of the case body 1, which is made up of the housing part of the counter 7 and the cylindrical part 1a, and the luff bushes 3 are placed between these bushes 3 on both ends of the drive shaft 2. By rotatably supporting the provided cylindrical small diameter portion 2b, and locking the large diameter portion 2a provided at one end of the drive shaft 2 and the snap ring 4 provided at the curved end to the end face of each bushing 3, A service meter that regulates the vertical movement of the drive shaft 2 and has a worm 6 provided at the middle of the drive shaft 2 meshing with a pinion 9 fixed to the rotating shaft 8 of the counter 70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975139003U JPS5831250Y2 (en) | 1975-10-14 | 1975-10-14 | service meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975139003U JPS5831250Y2 (en) | 1975-10-14 | 1975-10-14 | service meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5252984U JPS5252984U (en) | 1977-04-15 |
| JPS5831250Y2 true JPS5831250Y2 (en) | 1983-07-11 |
Family
ID=28618870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975139003U Expired JPS5831250Y2 (en) | 1975-10-14 | 1975-10-14 | service meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831250Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501916U (en) * | 1973-05-02 | 1975-01-10 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS491882A (en) * | 1972-04-26 | 1974-01-09 |
-
1975
- 1975-10-14 JP JP1975139003U patent/JPS5831250Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS491882A (en) * | 1972-04-26 | 1974-01-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5252984U (en) | 1977-04-15 |
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